libtransport.git Changeset - 254143e164d1

Changeset - 254143e164d1

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[Not reviewed]

0 2 6

Jan Kaluza - 13 years ago 2012-08-29 10:17:32
hanzz.k@gmail.com

spectrum2_manager can run as web-server providing simple web-interface

8 files changed with 5786 insertions and 449 deletions:

spectrum_manager/src/CMakeLists.txt

spectrum_manager/src/main.cpp

448

spectrum_manager/src/methods.cpp

492

spectrum_manager/src/methods.h

spectrum_manager/src/mongoose.c

4470

spectrum_manager/src/mongoose.h

301

spectrum_manager/src/server.cpp

365

spectrum_manager/src/server.h

0 comments (0 inline, 0 general)

spectrum_manager/src/CMakeLists.txt

➞

Show inline comments

 cmake_minimum_required(VERSION 2.6)
 FILE(GLOB SRC *.cpp)
+FILE(GLOB SRC *.cpp *.c)
 ADD_EXECUTABLE(spectrum2_manager ${SRC} ../../src/config.cpp ../../src/util.cpp ${CMAKE_CURRENT_SOURCE_DIR}/../../include/transport/protocol.pb.cc)
 ADD_DEPENDENCIES(spectrum2_manager pb)
 SET_SOURCE_FILES_PROPERTIES(${CMAKE_CURRENT_SOURCE_DIR}/../../include/transport/protocol.pb.cc PROPERTIES GENERATED 1)

spectrum_manager/src/main.cpp

➞

Show inline comments

 #include "managerconfig.h"
 #include "methods.h"
 #include "server.h"
 #include "transport/config.h"
 #include "transport/protocol.pb.h"
 #include "Swiften/Swiften.h"
 #include "Swiften/EventLoop/SimpleEventLoop.h"
 #include <boost/foreach.hpp>
@@ @@ -11,465 +13,19 @@ @@
 #include <algorithm>
 #include <boost/filesystem.hpp>
 #include <cstdlib>
 #include "signal.h"
 #include "sys/wait.h"
 #define WRAP(MESSAGE, TYPE) 	pbnetwork::WrapperMessage wrap; \
 	wrap.set_type(TYPE); \
 	wrap.set_payload(MESSAGE); \
 	wrap.SerializeToString(&MESSAGE);
 using namespace Transport;
 using namespace boost::filesystem;
 using namespace boost;
 std::string _data;
 static std::string searchForBinary(const std::string &binary) {
 	std::vector<std::string> path_list;
 	char * env_path = getenv("PATH");
 	if (env_path != NULL) {
 		std::string buffer = "";
 		for (int s = 0; s < strlen(env_path); s++) {
 			if (env_path[s] == ':') {
 				path_list.insert(path_list.end(), std::string(buffer));
 				buffer = "";
+			}
 			else {
 				buffer += env_path[s];
+			}
+		}
 		if (buffer != "") {
 			path_list.insert(path_list.end(), std::string(buffer));
 			buffer = "";
+		}
 		for (std::vector<std::string>::iterator dit = path_list.begin(); dit < path_list.end(); dit++) {
 			std::string bpath = *dit;
 			bpath += "/";
 			bpath += binary;
 			path p(bpath);
 			if (exists(p) && !is_directory(p)) {
 				return bpath;
+			}
+		}
+	}
 	return "";
+}
 // Executes new backend
 static unsigned long exec_(std::string path, std::string config, std::string jid = "") {
 	// fork and exec
 	pid_t pid = fork();
 	if ( pid == 0 ) {
 		// child process
 		if (jid.empty()) {
 			exit(execl(path.c_str(), path.c_str(), config.c_str(), NULL));
+		}
 		else {
 			exit(execl(path.c_str(), path.c_str(), "-j", jid.c_str(), config.c_str(), NULL));
+		}
 	} else if ( pid < 0 ) {
 		// fork failed
+	}
 	else {
 		waitpid(pid, 0, 0);
+	}
 	return (unsigned long) pid;
+}
 static int getPort(const std::string &portfile) {
 	path p(portfile);
 	if (!exists(p) || is_directory(p)) {
 		return 0;
+	}
 	std::ifstream f(p.string().c_str(), std::ios_base::in);
 	std::string port;
 	f >> port;
 	if (port.empty())
 		return 0;
 	return boost::lexical_cast<int>(port);
+}
 static int isRunning(const std::string &pidfile) {
 	path p(pidfile);
 	if (!exists(p) || is_directory(p)) {
 		return 0;
+	}
 	std::ifstream f(p.string().c_str(), std::ios_base::in);
 	std::string pid;
 	f >> pid;
 	if (pid.empty())
 		return 0;
 	if (kill(boost::lexical_cast<int>(pid), 0) != 0)
 		return 0;
 	return boost::lexical_cast<int>(pid);
+}
 static void start_instances(ManagerConfig *config, const std::string &_jid = "") {
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		std::string spectrum2_binary = searchForBinary("spectrum2");
 		if (spectrum2_binary.empty()) {
 			std::cerr << "spectrum2 binary not found in PATH\n";
 			exit(8);
+		}
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 					continue;
+				}
 				std::vector<std::string> vhosts;
 				if (CONFIG_HAS_KEY(&cfg, "vhosts.vhost"))
 					vhosts = CONFIG_VECTOR(&cfg, "vhosts.vhost");
 				vhosts.push_back(CONFIG_STRING(&cfg, "service.jid"));
 				BOOST_FOREACH(std::string &vhost, vhosts) {
 					Config vhostCfg;
 					if (vhostCfg.load(itr->path().string(), vhost) == false) {
 						std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 						continue;
+					}
 					if (!_jid.empty() && _jid != vhost) {
 						continue;
+					}
 					int pid = isRunning(CONFIG_STRING(&vhostCfg, "service.pidfile"));
 					if (pid == 0) {
 						std::cout << "Starting " << itr->path() << ": OK\n";
 						exec_(spectrum2_binary, itr->path().string(), vhost);
+					}
 					else {
 						std::cout << "Starting " << itr->path() << ": Already started (PID=" << pid << ")\n";
+					}
+				}
+			}
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
+}
 static void stop_instances(ManagerConfig *config, const std::string &_jid = "") {
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
+				}
 				std::vector<std::string> vhosts;
 				if (CONFIG_HAS_KEY(&cfg, "vhosts.vhost"))
 					vhosts = CONFIG_VECTOR(&cfg, "vhosts.vhost");
 				vhosts.push_back(CONFIG_STRING(&cfg, "service.jid"));
 				BOOST_FOREACH(std::string &vhost, vhosts) {
 					Config vhostCfg;
 					if (vhostCfg.load(itr->path().string(), vhost) == false) {
 						std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 						continue;
+					}
 					if (!_jid.empty() && _jid != vhost) {
 						continue;
+					}
 					int pid = isRunning(CONFIG_STRING(&vhostCfg, "service.pidfile"));
 					if (pid) {
 						std::cout << "Stopping " << itr->path() << ": ";
 						kill(pid, SIGTERM);
 						sleep(1);
 						int count = 20;
 						while (kill(pid, 0) == 0 && count != 0) {
 							std::cout << ".";
 							sleep(1);
 							count--;
+						}
 						if (count == 0) {
 							std::cout << " ERROR (timeout)\n";
+						}
 						else {
 							std::cout << " OK\n";
+						}
+					}
 					else {
 						std::cout << "Stopping " << itr->path() << ": Not running\n";
+					}
+				}
+			}
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
+}
 static int show_status(ManagerConfig *config) {
 	int ret = 0;
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
+				}
 				std::vector<std::string> vhosts;
 				if (CONFIG_HAS_KEY(&cfg, "vhosts.vhost"))
 					vhosts = CONFIG_VECTOR(&cfg, "vhosts.vhost");
 				vhosts.push_back(CONFIG_STRING(&cfg, "service.jid"));
 				BOOST_FOREACH(std::string &vhost, vhosts) {
 					Config vhostCfg;
 					if (vhostCfg.load(itr->path().string(), vhost) == false) {
 						std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 						continue;
+					}
 					int pid = isRunning(CONFIG_STRING(&vhostCfg, "service.pidfile"));
 					if (pid) {
 						std::cout << itr->path() << ": " << vhost << " Running\n";
+					}
 					else {
 						ret = 3;
 						std::cout << itr->path() << ": " << vhost << " Stopped\n";
+					}
+				}
+			}
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
 	return ret;
+}
 static void handleDataRead(boost::shared_ptr<Swift::Connection> m_conn, boost::shared_ptr<Swift::SafeByteArray> data) {
 	_data += std::string(data->begin(), data->end());
 	// Parse data while there are some
 	while (_data.size() != 0) {
 		// expected_size of wrapper message
 		unsigned int expected_size;
 		// if data is >= 4, we have whole header and we can
 		// read expected_size.
 		if (_data.size() >= 4) {
 			expected_size = *((unsigned int*) &_data[0]);
 			expected_size = ntohl(expected_size);
 			// If we don't have whole wrapper message, wait for next
 			// handleDataRead call.
 			if (_data.size() - 4 < expected_size)
 				return;
+		}
 		else {
 			return;
+		}
 		// Parse wrapper message and erase it from buffer.
 		pbnetwork::WrapperMessage wrapper;
 		if (wrapper.ParseFromArray(&_data[4], expected_size) == false) {
 			std::cout << "PARSING ERROR " << expected_size << "\n";
 			_data.erase(_data.begin(), _data.begin() + 4 + expected_size);
 			continue;
+		}
 		_data.erase(_data.begin(), _data.begin() + 4 + expected_size);
 		if (wrapper.type() == pbnetwork::WrapperMessage_Type_TYPE_QUERY) {
 			pbnetwork::BackendConfig payload;
 			if (payload.ParseFromString(wrapper.payload()) == false) {
 				std::cout << "PARSING ERROR\n";
 				// TODO: ERROR
 				continue;
+			}
 			std::cout << payload.config() << "\n";
 			exit(0);
+		}
+	}
+}
 static void handleConnected(boost::shared_ptr<Swift::Connection> m_conn, const std::string &msg, bool error) {
 	if (error) {
 		std::cerr << "Can't connect the server\n";
 		exit(50);
+	}
 	else {
 		pbnetwork::BackendConfig m;
 		m.set_config(msg);
 		std::string message;
 		m.SerializeToString(&message);
 		WRAP(message, pbnetwork::WrapperMessage_Type_TYPE_QUERY);
 		uint32_t size = htonl(message.size());
 		char *header = (char *) &size;
 		// send header together with wrapper message
 		m_conn->write(Swift::createSafeByteArray(std::string(header, 4) + message));
+	}
+}
 static void ask_local_server(ManagerConfig *config, Swift::BoostNetworkFactories &networkFactories, const std::string &jid, const std::string &message) {
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		bool found = false;
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 					continue;
+				}
 				if (CONFIG_STRING(&cfg, "service.jid") != jid) {
 					continue;
+				}
 				found = true;
 				boost::shared_ptr<Swift::Connection> m_conn;
 				m_conn = networkFactories.getConnectionFactory()->createConnection();
 				m_conn->onDataRead.connect(boost::bind(&handleDataRead, m_conn, _1));
 				m_conn->onConnectFinished.connect(boost::bind(&handleConnected, m_conn, message, _1));
 				m_conn->connect(Swift::HostAddressPort(Swift::HostAddress(CONFIG_STRING(&cfg, "service.backend_host")), getPort(CONFIG_STRING(&cfg, "service.portfile"))));
 // 				finished++;
 // 				Swift::Client *client = new Swift::Client(CONFIG_VECTOR(&cfg, "service.admin_jid")[0], CONFIG_STRING(&cfg, "service.admin_password"), &networkFactories);
 // 				client->setAlwaysTrustCertificates();
 // 				client->onConnected.connect(boost::bind(&handleConnected, client, CONFIG_STRING(&cfg, "service.jid")));
 // 				client->onDisconnected.connect(bind(&handleDisconnected, client, _1, CONFIG_STRING(&cfg, "service.jid")));
 // 				client->onMessageReceived.connect(bind(&handleMessageReceived, client, _1, CONFIG_STRING(&cfg, "service.jid")));
 // 				Swift::ClientOptions opt;
 // 				opt.allowPLAINWithoutTLS = true;
 // 				client->connect(opt);
+			}
+		}
 		if (!found) {
 			std::cerr << "Config file for Spectrum instance with this JID was not found\n";
 			exit(20);
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
+}
 static void show_list(ManagerConfig *config) {
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		bool found = false;
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 					continue;
+				}
 				std::cout << CONFIG_STRING(&cfg, "service.jid") << "\n";
+			}
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
+}
 // static void ask_local_servers(ManagerConfig *config, Swift::BoostNetworkFactories &networkFactories, const std::string &message) {
 // 	path p(CONFIG_STRING(config, "service.config_directory"));
 //
 // 	try {
 // 		if (!exists(p)) {
@@ @@ -576,13 +132,18 @@ int main(int argc, char **argv) @@
 		stop_instances(&config);
+	}
 	else if (command[0] == "status") {
 		return show_status(&config);
+	}
 	else if (command[0] == "list") {
 		show_list(&config);
 		std::vector<std::string> list = show_list(&config);
+	}
 	else if (command[0] == "server") {
 		Server server(&config);
 		server.start(8080, "test", "test");
 		while (1) { sleep(10); }
+	}
 	else {
 		if (command.size() < 2) {
 			std::cout << desc << "\n";
 			return 11;
+		}
@@ @@ -605,9 +166,26 @@ int main(int argc, char **argv) @@
 		ask_local_server(&config, networkFactories, jid, cmd);
 // 		std::string message = command;
 // 		m = &message;
 // 		ask_local_server(&config, networkFactories, message);
 		eventLoop.run();
 		eventLoop.runUntilEvents();
 		struct timeval td_start,td_end;
 		float elapsed = 0;
 		gettimeofday(&td_start, NULL);
 		time_t started = time(NULL);
 		while(get_response().empty()) {
 			eventLoop.runUntilEvents();
+		}
 		if (!get_response().empty()) {
 			gettimeofday(&td_end, NULL);
 			elapsed = 1000000.0 * (td_end.tv_sec -td_start.tv_sec); \
 			elapsed += (td_end.tv_usec - td_start.tv_usec); \
 			elapsed = elapsed / 1000 / 1000; \
 			std::cout << "Response received after " << (elapsed) << " seconds\n";
+		}
+	}
+}

spectrum_manager/src/methods.cpp

➞

Show inline comments

@@ new file 100644 @@
 #include "methods.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <assert.h>
 #include <string.h>
 #include <time.h>
 #include <stdarg.h>
 #include <pthread.h>
 #include <boost/foreach.hpp>
 #include <iostream>
 #include <fstream>
 #include <iterator>
 #include <algorithm>
 #include <boost/filesystem.hpp>
 #include <cstdlib>
 #include "signal.h"
 #include "sys/wait.h"
 #define WRAP(MESSAGE, TYPE) 	pbnetwork::WrapperMessage wrap; \
 	wrap.set_type(TYPE); \
 	wrap.set_payload(MESSAGE); \
 	wrap.SerializeToString(&MESSAGE);
 using namespace Transport;
 using namespace boost::filesystem;
 using namespace boost;
 std::string _data;
 static std::string response;
 std::string get_response() {
 	return response;
+}
 std::string searchForBinary(const std::string &binary) {
 	std::vector<std::string> path_list;
 	char * env_path = getenv("PATH");
 	if (env_path != NULL) {
 		std::string buffer = "";
 		for (int s = 0; s < strlen(env_path); s++) {
 			if (env_path[s] == ':') {
 				path_list.insert(path_list.end(), std::string(buffer));
 				buffer = "";
+			}
 			else {
 				buffer += env_path[s];
+			}
+		}
 		if (buffer != "") {
 			path_list.insert(path_list.end(), std::string(buffer));
 			buffer = "";
+		}
 		for (std::vector<std::string>::iterator dit = path_list.begin(); dit < path_list.end(); dit++) {
 			std::string bpath = *dit;
 			bpath += "/";
 			bpath += binary;
 			path p(bpath);
 			if (exists(p) && !is_directory(p)) {
 				return bpath;
+			}
+		}
+	}
 	return "";
+}
 // Executes new backend
 unsigned long exec_(std::string path, std::string config, std::string jid) {
 	// fork and exec
 	pid_t pid = fork();
 	if ( pid == 0 ) {
 		// child process
 		if (jid.empty()) {
 			exit(execl(path.c_str(), path.c_str(), config.c_str(), NULL));
+		}
 		else {
 			exit(execl(path.c_str(), path.c_str(), "-j", jid.c_str(), config.c_str(), NULL));
+		}
 	} else if ( pid < 0 ) {
 		// fork failed
+	}
 	else {
 		waitpid(pid, 0, 0);
+	}
 	return (unsigned long) pid;
+}
 int getPort(const std::string &portfile) {
 	path p(portfile);
 	if (!exists(p) || is_directory(p)) {
 		return 0;
+	}
 	std::ifstream f(p.string().c_str(), std::ios_base::in);
 	std::string port;
 	f >> port;
 	if (port.empty())
 		return 0;
 	return boost::lexical_cast<int>(port);
+}
 int isRunning(const std::string &pidfile) {
 	path p(pidfile);
 	if (!exists(p) || is_directory(p)) {
 		return 0;
+	}
 	std::ifstream f(p.string().c_str(), std::ios_base::in);
 	std::string pid;
 	f >> pid;
 	if (pid.empty())
 		return 0;
 	if (kill(boost::lexical_cast<int>(pid), 0) != 0)
 		return 0;
 	return boost::lexical_cast<int>(pid);
+}
 void start_instances(ManagerConfig *config, const std::string &_jid) {
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		std::string spectrum2_binary = searchForBinary("spectrum2");
 		if (spectrum2_binary.empty()) {
 			std::cerr << "spectrum2 binary not found in PATH\n";
 			exit(8);
+		}
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 					continue;
+				}
 				std::vector<std::string> vhosts;
 				if (CONFIG_HAS_KEY(&cfg, "vhosts.vhost"))
 					vhosts = CONFIG_VECTOR(&cfg, "vhosts.vhost");
 				vhosts.push_back(CONFIG_STRING(&cfg, "service.jid"));
 				BOOST_FOREACH(std::string &vhost, vhosts) {
 					Config vhostCfg;
 					if (vhostCfg.load(itr->path().string(), vhost) == false) {
 						std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 						continue;
+					}
 					if (!_jid.empty() && _jid != vhost) {
 						continue;
+					}
 					int pid = isRunning(CONFIG_STRING(&vhostCfg, "service.pidfile"));
 					if (pid == 0) {
 						std::cout << "Starting " << itr->path() << ": OK\n";
 						exec_(spectrum2_binary, itr->path().string(), vhost);
+					}
 					else {
 						std::cout << "Starting " << itr->path() << ": Already started (PID=" << pid << ")\n";
+					}
+				}
+			}
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
+}
 void stop_instances(ManagerConfig *config, const std::string &_jid) {
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
+				}
 				std::vector<std::string> vhosts;
 				if (CONFIG_HAS_KEY(&cfg, "vhosts.vhost"))
 					vhosts = CONFIG_VECTOR(&cfg, "vhosts.vhost");
 				vhosts.push_back(CONFIG_STRING(&cfg, "service.jid"));
 				BOOST_FOREACH(std::string &vhost, vhosts) {
 					Config vhostCfg;
 					if (vhostCfg.load(itr->path().string(), vhost) == false) {
 						std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 						continue;
+					}
 					if (!_jid.empty() && _jid != vhost) {
 						continue;
+					}
 					int pid = isRunning(CONFIG_STRING(&vhostCfg, "service.pidfile"));
 					if (pid) {
 						std::cout << "Stopping " << itr->path() << ": ";
 						kill(pid, SIGTERM);
 						sleep(1);
 						int count = 20;
 						while (kill(pid, 0) == 0 && count != 0) {
 							std::cout << ".";
 							sleep(1);
 							count--;
+						}
 						if (count == 0) {
 							std::cout << " ERROR (timeout)\n";
+						}
 						else {
 							std::cout << " OK\n";
+						}
+					}
 					else {
 						std::cout << "Stopping " << itr->path() << ": Not running\n";
+					}
+				}
+			}
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
+}
 int show_status(ManagerConfig *config) {
 	int ret = 0;
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
+				}
 				std::vector<std::string> vhosts;
 				if (CONFIG_HAS_KEY(&cfg, "vhosts.vhost"))
 					vhosts = CONFIG_VECTOR(&cfg, "vhosts.vhost");
 				vhosts.push_back(CONFIG_STRING(&cfg, "service.jid"));
 				BOOST_FOREACH(std::string &vhost, vhosts) {
 					Config vhostCfg;
 					if (vhostCfg.load(itr->path().string(), vhost) == false) {
 						std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 						continue;
+					}
 					int pid = isRunning(CONFIG_STRING(&vhostCfg, "service.pidfile"));
 					if (pid) {
 						std::cout << itr->path() << ": " << vhost << " Running\n";
+					}
 					else {
 						ret = 3;
 						std::cout << itr->path() << ": " << vhost << " Stopped\n";
+					}
+				}
+			}
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
 	return ret;
+}
 static void handleDataRead(boost::shared_ptr<Swift::Connection> m_conn, boost::shared_ptr<Swift::SafeByteArray> data) {
 	_data += std::string(data->begin(), data->end());
 	// Parse data while there are some
 	while (_data.size() != 0) {
 		// expected_size of wrapper message
 		unsigned int expected_size;
 		// if data is >= 4, we have whole header and we can
 		// read expected_size.
 		if (_data.size() >= 4) {
 			expected_size = *((unsigned int*) &_data[0]);
 			expected_size = ntohl(expected_size);
 			// If we don't have whole wrapper message, wait for next
 			// handleDataRead call.
 			if (_data.size() - 4 < expected_size)
 				return;
+		}
 		else {
 			return;
+		}
 		// Parse wrapper message and erase it from buffer.
 		pbnetwork::WrapperMessage wrapper;
 		if (wrapper.ParseFromArray(&_data[4], expected_size) == false) {
 			std::cout << "PARSING ERROR " << expected_size << "\n";
 			_data.erase(_data.begin(), _data.begin() + 4 + expected_size);
 			continue;
+		}
 		_data.erase(_data.begin(), _data.begin() + 4 + expected_size);
 		if (wrapper.type() == pbnetwork::WrapperMessage_Type_TYPE_QUERY) {
 			pbnetwork::BackendConfig payload;
 			if (payload.ParseFromString(wrapper.payload()) == false) {
 				std::cout << "PARSING ERROR\n";
 				// TODO: ERROR
 				continue;
+			}
 			m_conn->onDataRead.disconnect(boost::bind(&handleDataRead, m_conn, _1));
 			response = payload.config();
 			std::cout << payload.config() << "\n";
 // 			exit(0);
+		}
+	}
+}
 static void handleConnected(boost::shared_ptr<Swift::Connection> m_conn, const std::string &msg, bool error) {
 		m_conn->onConnectFinished.disconnect(boost::bind(&handleConnected, m_conn, msg, _1));
 	if (error) {
 		std::cerr << "Can't connect the server\n";
 		response = "Can't connect the server\n";
 		m_conn->onDataRead.disconnect(boost::bind(&handleDataRead, m_conn, _1));
 // 		exit(50);
+	}
 	else {
 		pbnetwork::BackendConfig m;
 		m.set_config(msg);
 		std::string message;
 		m.SerializeToString(&message);
 		WRAP(message, pbnetwork::WrapperMessage_Type_TYPE_QUERY);
 		uint32_t size = htonl(message.size());
 		char *header = (char *) &size;
 		// send header together with wrapper message
 		m_conn->write(Swift::createSafeByteArray(std::string(header, 4) + message));
+	}
+}
 void ask_local_server(ManagerConfig *config, Swift::BoostNetworkFactories &networkFactories, const std::string &jid, const std::string &message) {
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		bool found = false;
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 					continue;
+				}
 				if (CONFIG_STRING(&cfg, "service.jid") != jid) {
 					continue;
+				}
 				found = true;
 				boost::shared_ptr<Swift::Connection> m_conn;
 				m_conn = networkFactories.getConnectionFactory()->createConnection();
 				m_conn->onDataRead.connect(boost::bind(&handleDataRead, m_conn, _1));
 				m_conn->onConnectFinished.connect(boost::bind(&handleConnected, m_conn, message, _1));
 				m_conn->connect(Swift::HostAddressPort(Swift::HostAddress(CONFIG_STRING(&cfg, "service.backend_host")), getPort(CONFIG_STRING(&cfg, "service.portfile"))));
 // 				finished++;
 // 				Swift::Client *client = new Swift::Client(CONFIG_VECTOR(&cfg, "service.admin_jid")[0], CONFIG_STRING(&cfg, "service.admin_password"), &networkFactories);
 // 				client->setAlwaysTrustCertificates();
 // 				client->onConnected.connect(boost::bind(&handleConnected, client, CONFIG_STRING(&cfg, "service.jid")));
 // 				client->onDisconnected.connect(bind(&handleDisconnected, client, _1, CONFIG_STRING(&cfg, "service.jid")));
 // 				client->onMessageReceived.connect(bind(&handleMessageReceived, client, _1, CONFIG_STRING(&cfg, "service.jid")));
 // 				Swift::ClientOptions opt;
 // 				opt.allowPLAINWithoutTLS = true;
 // 				client->connect(opt);
+			}
+		}
 		if (!found) {
 			std::cerr << "Config file for Spectrum instance with this JID was not found\n";
 			exit(20);
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
 		exit(5);
+	}
+}
 std::vector<std::string> show_list(ManagerConfig *config, bool show) {
 	path p(CONFIG_STRING(config, "service.config_directory"));
 	std::vector<std::string> list;
 	try {
 		if (!exists(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(6);
+		}
 		if (!is_directory(p)) {
 			std::cerr << "Config directory " << CONFIG_STRING(config, "service.config_directory") << " does not exist\n";
 			exit(7);
+		}
 		bool found = false;
 		directory_iterator end_itr;
 		for (directory_iterator itr(p); itr != end_itr; ++itr) {
 			if (is_regular(itr->path()) && extension(itr->path()) == ".cfg") {
 				Config cfg;
 				if (cfg.load(itr->path().string()) == false) {
 					std::cerr << "Can't load config file " << itr->path().string() << ". Skipping...\n";
 					continue;
+				}
 				if (show) {
 					std::cout << CONFIG_STRING(&cfg, "service.jid") << "\n";
+				}
 				list.push_back(CONFIG_STRING(&cfg, "service.jid"));
+			}
+		}
+	}
 	catch (const filesystem_error& ex) {
 		std::cerr << "boost filesystem error\n";
+	}
 	return list;
+}

spectrum_manager/src/methods.h

➞

Show inline comments

@@ new file 100644 @@
 /**
  * libtransport -- C++ library for easy XMPP Transports development
+ *
  * Copyright (C) 2011, Jan Kaluza <hanzz.k@gmail.com>
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  */
 #pragma once
 #include <boost/program_options.hpp>
 #include <boost/foreach.hpp>
 #include <boost/format.hpp>
 #include <boost/algorithm/string.hpp>
 #include <boost/assign.hpp>
 #include <boost/bind.hpp>
 #include <boost/signal.hpp>
 #include "managerconfig.h"
 #include "transport/config.h"
 #include "transport/protocol.pb.h"
 #include "Swiften/Swiften.h"
 #include "Swiften/EventLoop/SimpleEventLoop.h"
 std::string searchForBinary(const std::string &binary);
 // Executes new backend
 unsigned long exec_(std::string path, std::string config, std::string jid = "");
 int getPort(const std::string &portfile);
 int isRunning(const std::string &pidfile);
 void start_instances(ManagerConfig *config, const std::string &_jid = "");
 void stop_instances(ManagerConfig *config, const std::string &_jid = "");
 int show_status(ManagerConfig *config);
 void ask_local_server(ManagerConfig *config, Swift::BoostNetworkFactories &networkFactories, const std::string &jid, const std::string &message);
 std::vector<std::string> show_list(ManagerConfig *config, bool show = true);
 std::string get_response();
@@ \ No newline at end of file @@

spectrum_manager/src/mongoose.c

➞

Show inline comments

@@ new file 100644 @@
 // Copyright (c) 2004-2012 Sergey Lyubka
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
 //
 // The above copyright notice and this permission notice shall be included in
 // all copies or substantial portions of the Software.
 //
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 #if defined(_WIN32)
 #define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005
 #else
 #define _XOPEN_SOURCE 600     // For flockfile() on Linux
 #define _LARGEFILE_SOURCE     // Enable 64-bit file offsets
 #define __STDC_FORMAT_MACROS  // <inttypes.h> wants this for C++
 #define __STDC_LIMIT_MACROS   // C++ wants that for INT64_MAX
 #endif
 #if defined(__SYMBIAN32__)
 #define NO_SSL // SSL is not supported
 #define NO_CGI // CGI is not supported
 #define PATH_MAX FILENAME_MAX
 #endif // __SYMBIAN32__
 #ifndef _WIN32_WCE // Some ANSI #includes are not available on Windows CE
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <errno.h>
 #include <signal.h>
 #include <fcntl.h>
 #endif // !_WIN32_WCE
 #include <time.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <assert.h>
 #include <string.h>
 #include <ctype.h>
 #include <limits.h>
 #include <stddef.h>
 #include <stdio.h>
 #if defined(_WIN32) && !defined(__SYMBIAN32__) // Windows specific
 #define _WIN32_WINNT 0x0400 // To make it link in VS2005
 #include <windows.h>
 #ifndef PATH_MAX
 #define PATH_MAX MAX_PATH
 #endif
 #ifndef _WIN32_WCE
 #include <process.h>
 #include <direct.h>
 #include <io.h>
 #else // _WIN32_WCE
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #define NO_CGI // WinCE has no pipes
 typedef long off_t;
 #define errno   GetLastError()
 #define strerror(x)  _ultoa(x, (char *) _alloca(sizeof(x) *3 ), 10)
 #endif // _WIN32_WCE
 #define MAKEUQUAD(lo, hi) ((uint64_t)(((uint32_t)(lo)) | \
       ((uint64_t)((uint32_t)(hi))) << 32))
 #define RATE_DIFF 10000000 // 100 nsecs
 #define EPOCH_DIFF MAKEUQUAD(0xd53e8000, 0x019db1de)
 #define SYS2UNIX_TIME(lo, hi) \
   (time_t) ((MAKEUQUAD((lo), (hi)) - EPOCH_DIFF) / RATE_DIFF)
 // Visual Studio 6 does not know __func__ or __FUNCTION__
 // The rest of MS compilers use __FUNCTION__, not C99 __func__
 // Also use _strtoui64 on modern M$ compilers
 #if defined(_MSC_VER) && _MSC_VER < 1300
 #define STRX(x) #x
 #define STR(x) STRX(x)
 #define __func__ "line " STR(__LINE__)
 #define strtoull(x, y, z) strtoul(x, y, z)
 #define strtoll(x, y, z) strtol(x, y, z)
 #else
 #define __func__  __FUNCTION__
 #define strtoull(x, y, z) _strtoui64(x, y, z)
 #define strtoll(x, y, z) _strtoi64(x, y, z)
 #endif // _MSC_VER
 #define ERRNO   GetLastError()
 #define NO_SOCKLEN_T
 #define SSL_LIB   "ssleay32.dll"
 #define CRYPTO_LIB  "libeay32.dll"
 #define DIRSEP '\\'
 #define IS_DIRSEP_CHAR(c) ((c) == '/' || (c) == '\\')
 #define O_NONBLOCK  0
 #if !defined(EWOULDBLOCK)
 #define EWOULDBLOCK  WSAEWOULDBLOCK
 #endif // !EWOULDBLOCK
 #define _POSIX_
 #define INT64_FMT  "I64d"
 #define WINCDECL __cdecl
 #define SHUT_WR 1
 #define snprintf _snprintf
 #define vsnprintf _vsnprintf
 #define mg_sleep(x) Sleep(x)
 #define pipe(x) _pipe(x, MG_BUF_LEN, _O_BINARY)
 #define popen(x, y) _popen(x, y)
 #define pclose(x) _pclose(x)
 #define close(x) _close(x)
 #define dlsym(x,y) GetProcAddress((HINSTANCE) (x), (y))
 #define RTLD_LAZY  0
 #define fseeko(x, y, z) _lseeki64(_fileno(x), (y), (z))
 #define fdopen(x, y) _fdopen((x), (y))
 #define write(x, y, z) _write((x), (y), (unsigned) z)
 #define read(x, y, z) _read((x), (y), (unsigned) z)
 #define flockfile(x) EnterCriticalSection(&global_log_file_lock)
 #define funlockfile(x) LeaveCriticalSection(&global_log_file_lock)
 #if !defined(fileno)
 #define fileno(x) _fileno(x)
 #endif // !fileno MINGW #defines fileno
 typedef HANDLE pthread_mutex_t;
 typedef struct {HANDLE signal, broadcast;} pthread_cond_t;
 typedef DWORD pthread_t;
 #define pid_t HANDLE // MINGW typedefs pid_t to int. Using #define here.
 struct timespec {
   long tv_nsec;
   long tv_sec;
 };
 static int pthread_mutex_lock(pthread_mutex_t *);
 static int pthread_mutex_unlock(pthread_mutex_t *);
 static FILE *mg_fopen(const char *path, const char *mode);
 #if defined(HAVE_STDINT)
 #include <stdint.h>
 #else
 typedef unsigned int  uint32_t;
 typedef unsigned short  uint16_t;
 typedef unsigned __int64 uint64_t;
 typedef __int64   int64_t;
 #define INT64_MAX  9223372036854775807
 #endif // HAVE_STDINT
 // POSIX dirent interface
 struct dirent {
   char d_name[PATH_MAX];
 };
 typedef struct DIR {
   HANDLE   handle;
   WIN32_FIND_DATAW info;
   struct dirent  result;
 } DIR;
 #else    // UNIX  specific
 #include <sys/wait.h>
 #include <sys/socket.h>
 #include <sys/select.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <sys/time.h>
 #include <stdint.h>
 #include <inttypes.h>
 #include <netdb.h>
 #include <pwd.h>
 #include <unistd.h>
 #include <dirent.h>
 #if !defined(NO_SSL_DL) && !defined(NO_SSL)
 #include <dlfcn.h>
 #endif
 #include <pthread.h>
 #if defined(__MACH__)
 #define SSL_LIB   "libssl.dylib"
 #define CRYPTO_LIB  "libcrypto.dylib"
 #else
 #if !defined(SSL_LIB)
 #define SSL_LIB   "libssl.so"
 #endif
 #if !defined(CRYPTO_LIB)
 #define CRYPTO_LIB  "libcrypto.so"
 #endif
 #endif
 #define DIRSEP   '/'
 #define IS_DIRSEP_CHAR(c) ((c) == '/')
 #ifndef O_BINARY
 #define O_BINARY  0
 #endif // O_BINARY
 #define closesocket(a) close(a)
 #define mg_fopen(x, y) fopen(x, y)
 #define mg_mkdir(x, y) mkdir(x, y)
 #define mg_remove(x) remove(x)
 #define mg_rename(x, y) rename(x, y)
 #define mg_sleep(x) usleep((x) * 1000)
 #define ERRNO errno
 #define INVALID_SOCKET (-1)
 #define INT64_FMT PRId64
 typedef int SOCKET;
 #define WINCDECL
 #endif // End of Windows and UNIX specific includes
 #include "mongoose.h"
 #define MONGOOSE_VERSION "3.3"
 #define PASSWORDS_FILE_NAME ".htpasswd"
 #define CGI_ENVIRONMENT_SIZE 4096
 #define MAX_CGI_ENVIR_VARS 64
 #define MG_BUF_LEN 8192
 #define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
 #ifdef _WIN32
 static CRITICAL_SECTION global_log_file_lock;
 static pthread_t pthread_self(void) {
   return GetCurrentThreadId();
+}
 #endif // _WIN32
 #if defined(DEBUG)
 #define DEBUG_TRACE(x) do { \
   flockfile(stdout); \
   printf("*** %lu.%p.%s.%d: ", \
          (unsigned long) time(NULL), (void *) pthread_self(), \
          __func__, __LINE__); \
   printf x; \
   putchar('\n'); \
   fflush(stdout); \
   funlockfile(stdout); \
 } while (0)
 #else
 #define DEBUG_TRACE(x)
 #endif // DEBUG
 // Darwin prior to 7.0 and Win32 do not have socklen_t
 #ifdef NO_SOCKLEN_T
 typedef int socklen_t;
 #endif // NO_SOCKLEN_T
 #define _DARWIN_UNLIMITED_SELECT
 #if !defined(MSG_NOSIGNAL)
 #define MSG_NOSIGNAL 0
 #endif
 #if !defined(SOMAXCONN)
 #define SOMAXCONN 100
 #endif
 static const char *http_500_error = "Internal Server Error";
 // Snatched from OpenSSL includes. I put the prototypes here to be independent
 // from the OpenSSL source installation. Having this, mongoose + SSL can be
 // built on any system with binary SSL libraries installed.
 typedef struct ssl_st SSL;
 typedef struct ssl_method_st SSL_METHOD;
 typedef struct ssl_ctx_st SSL_CTX;
 #define SSL_ERROR_WANT_READ 2
 #define SSL_ERROR_WANT_WRITE 3
 #define SSL_FILETYPE_PEM 1
 #define CRYPTO_LOCK  1
 #if defined(NO_SSL_DL)
 extern void SSL_free(SSL *);
 extern int SSL_accept(SSL *);
 extern int SSL_connect(SSL *);
 extern int SSL_read(SSL *, void *, int);
 extern int SSL_write(SSL *, const void *, int);
 extern int SSL_get_error(const SSL *, int);
 extern int SSL_set_fd(SSL *, int);
 extern SSL *SSL_new(SSL_CTX *);
 extern SSL_CTX *SSL_CTX_new(SSL_METHOD *);
 extern SSL_METHOD *SSLv23_server_method(void);
 extern SSL_METHOD *SSLv23_client_method(void);
 extern int SSL_library_init(void);
 extern void SSL_load_error_strings(void);
 extern int SSL_CTX_use_PrivateKey_file(SSL_CTX *, const char *, int);
 extern int SSL_CTX_use_certificate_file(SSL_CTX *, const char *, int);
 extern int SSL_CTX_use_certificate_chain_file(SSL_CTX *, const char *);
 extern void SSL_CTX_set_default_passwd_cb(SSL_CTX *, mg_callback_t);
 extern void SSL_CTX_free(SSL_CTX *);
 extern unsigned long ERR_get_error(void);
 extern char *ERR_error_string(unsigned long, char *);
 extern int CRYPTO_num_locks(void);
 extern void CRYPTO_set_locking_callback(void (*)(int, int, const char *, int));
 extern void CRYPTO_set_id_callback(unsigned long (*)(void));
 #else
 // Dynamically loaded SSL functionality
 struct ssl_func {
   const char *name;   // SSL function name
   void  (*ptr)(void); // Function pointer
 };
 #define SSL_free (* (void (*)(SSL *)) ssl_sw[0].ptr)
 #define SSL_accept (* (int (*)(SSL *)) ssl_sw[1].ptr)
 #define SSL_connect (* (int (*)(SSL *)) ssl_sw[2].ptr)
 #define SSL_read (* (int (*)(SSL *, void *, int)) ssl_sw[3].ptr)
 #define SSL_write (* (int (*)(SSL *, const void *,int)) ssl_sw[4].ptr)
 #define SSL_get_error (* (int (*)(SSL *, int)) ssl_sw[5].ptr)
 #define SSL_set_fd (* (int (*)(SSL *, SOCKET)) ssl_sw[6].ptr)
 #define SSL_new (* (SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)
 #define SSL_CTX_new (* (SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)
 #define SSLv23_server_method (* (SSL_METHOD * (*)(void)) ssl_sw[9].ptr)
 #define SSL_library_init (* (int (*)(void)) ssl_sw[10].ptr)
 #define SSL_CTX_use_PrivateKey_file (* (int (*)(SSL_CTX *, \
         const char *, int)) ssl_sw[11].ptr)
 #define SSL_CTX_use_certificate_file (* (int (*)(SSL_CTX *, \
         const char *, int)) ssl_sw[12].ptr)
 #define SSL_CTX_set_default_passwd_cb \
   (* (void (*)(SSL_CTX *, mg_callback_t)) ssl_sw[13].ptr)
 #define SSL_CTX_free (* (void (*)(SSL_CTX *)) ssl_sw[14].ptr)
 #define SSL_load_error_strings (* (void (*)(void)) ssl_sw[15].ptr)
 #define SSL_CTX_use_certificate_chain_file \
   (* (int (*)(SSL_CTX *, const char *)) ssl_sw[16].ptr)
 #define SSLv23_client_method (* (SSL_METHOD * (*)(void)) ssl_sw[17].ptr)
 #define CRYPTO_num_locks (* (int (*)(void)) crypto_sw[0].ptr)
 #define CRYPTO_set_locking_callback \
   (* (void (*)(void (*)(int, int, const char *, int))) crypto_sw[1].ptr)
 #define CRYPTO_set_id_callback \
   (* (void (*)(unsigned long (*)(void))) crypto_sw[2].ptr)
 #define ERR_get_error (* (unsigned long (*)(void)) crypto_sw[3].ptr)
 #define ERR_error_string (* (char * (*)(unsigned long,char *)) crypto_sw[4].ptr)
 // set_ssl_option() function updates this array.
 // It loads SSL library dynamically and changes NULLs to the actual addresses
 // of respective functions. The macros above (like SSL_connect()) are really
 // just calling these functions indirectly via the pointer.
 static struct ssl_func ssl_sw[] = {
   {"SSL_free",   NULL},
   {"SSL_accept",   NULL},
   {"SSL_connect",   NULL},
   {"SSL_read",   NULL},
   {"SSL_write",   NULL},
   {"SSL_get_error",  NULL},
   {"SSL_set_fd",   NULL},
   {"SSL_new",   NULL},
   {"SSL_CTX_new",   NULL},
   {"SSLv23_server_method", NULL},
   {"SSL_library_init",  NULL},
   {"SSL_CTX_use_PrivateKey_file", NULL},
   {"SSL_CTX_use_certificate_file",NULL},
   {"SSL_CTX_set_default_passwd_cb",NULL},
   {"SSL_CTX_free",  NULL},
   {"SSL_load_error_strings", NULL},
   {"SSL_CTX_use_certificate_chain_file", NULL},
   {"SSLv23_client_method", NULL},
   {NULL,    NULL}
 };
 // Similar array as ssl_sw. These functions could be located in different lib.
 #if !defined(NO_SSL)
 static struct ssl_func crypto_sw[] = {
   {"CRYPTO_num_locks",  NULL},
   {"CRYPTO_set_locking_callback", NULL},
   {"CRYPTO_set_id_callback", NULL},
   {"ERR_get_error",  NULL},
   {"ERR_error_string", NULL},
   {NULL,    NULL}
 };
 #endif // NO_SSL
 #endif // NO_SSL_DL
 static const char *month_names[] = {
   "Jan", "Feb", "Mar", "Apr", "May", "Jun",
   "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
 };
 // Unified socket address. For IPv6 support, add IPv6 address structure
 // in the union u.
 union usa {
   struct sockaddr sa;
   struct sockaddr_in sin;
 #if defined(USE_IPV6)
   struct sockaddr_in6 sin6;
 #endif
 };
 // Describes a string (chunk of memory).
 struct vec {
   const char *ptr;
   size_t len;
 };
 // Structure used by mg_stat() function. Uses 64 bit file length.
 struct mgstat {
   int is_directory;  // Directory marker
   int64_t size;      // File size
   time_t mtime;      // Modification time
 };
 // Describes listening socket, or socket which was accept()-ed by the master
 // thread and queued for future handling by the worker thread.
 struct socket {
   struct socket *next;  // Linkage
   SOCKET sock;          // Listening socket
   union usa lsa;        // Local socket address
   union usa rsa;        // Remote socket address
   int is_ssl;           // Is socket SSL-ed
 };
 // NOTE(lsm): this enum shoulds be in sync with the config_options below.
 enum {
   CGI_EXTENSIONS, CGI_ENVIRONMENT, PUT_DELETE_PASSWORDS_FILE, CGI_INTERPRETER,
   MAX_REQUEST_SIZE, PROTECT_URI, AUTHENTICATION_DOMAIN, SSI_EXTENSIONS,
   ACCESS_LOG_FILE, SSL_CHAIN_FILE, ENABLE_DIRECTORY_LISTING, ERROR_LOG_FILE,
   GLOBAL_PASSWORDS_FILE, INDEX_FILES, ENABLE_KEEP_ALIVE, ACCESS_CONTROL_LIST,
   EXTRA_MIME_TYPES, LISTENING_PORTS, DOCUMENT_ROOT, SSL_CERTIFICATE,
   NUM_THREADS, RUN_AS_USER, REWRITE, HIDE_FILES,
   NUM_OPTIONS
 };
 static const char *config_options[] = {
   "C", "cgi_pattern", "**.cgi$|**.pl$|**.php$",
   "E", "cgi_environment", NULL,
   "G", "put_delete_passwords_file", NULL,
   "I", "cgi_interpreter", NULL,
   "M", "max_request_size", "16384",
   "P", "protect_uri", NULL,
   "R", "authentication_domain", "mydomain.com",
   "S", "ssi_pattern", "**.shtml$|**.shtm$",
   "a", "access_log_file", NULL,
   "c", "ssl_chain_file", NULL,
   "d", "enable_directory_listing", "yes",
   "e", "error_log_file", NULL,
   "g", "global_passwords_file", NULL,
   "i", "index_files", "index.html,index.htm,index.cgi,index.shtml,index.php",
   "k", "enable_keep_alive", "no",
   "l", "access_control_list", NULL,
   "m", "extra_mime_types", NULL,
   "p", "listening_ports", "8080",
   "r", "document_root",  ".",
   "s", "ssl_certificate", NULL,
   "t", "num_threads", "10",
   "u", "run_as_user", NULL,
   "w", "url_rewrite_patterns", NULL,
   "x", "hide_files_patterns", NULL,
   NULL
 };
 #define ENTRIES_PER_CONFIG_OPTION 3
 struct mg_context {
   volatile int stop_flag;       // Should we stop event loop
   SSL_CTX *ssl_ctx;             // SSL context
   SSL_CTX *client_ssl_ctx;      // Client SSL context
   char *config[NUM_OPTIONS];    // Mongoose configuration parameters
   mg_callback_t user_callback;  // User-defined callback function
   void *user_data;              // User-defined data
   struct socket *listening_sockets;
   volatile int num_threads;  // Number of threads
   pthread_mutex_t mutex;     // Protects (max|num)_threads
   pthread_cond_t  cond;      // Condvar for tracking workers terminations
   struct socket queue[20];   // Accepted sockets
   volatile int sq_head;      // Head of the socket queue
   volatile int sq_tail;      // Tail of the socket queue
   pthread_cond_t sq_full;    // Signaled when socket is produced
   pthread_cond_t sq_empty;   // Signaled when socket is consumed
 };
 struct mg_connection {
   struct mg_request_info request_info;
   struct mg_context *ctx;
   SSL *ssl;                   // SSL descriptor
   struct socket client;       // Connected client
   time_t birth_time;          // Time when request was received
   int64_t num_bytes_sent;     // Total bytes sent to client
   int64_t content_len;        // Content-Length header value
   int64_t consumed_content;   // How many bytes of content have been read
   char *buf;                  // Buffer for received data
   char *path_info;            // PATH_INFO part of the URL
   char *body;                 // Pointer to not-read yet buffered body data
   char *next_request;         // Pointer to the buffered next request
   int must_close;             // 1 if connection must be closed
   int buf_size;               // Buffer size
   int request_len;            // Size of the request + headers in a buffer
   int data_len;               // Total size of data in a buffer
 };
 const char **mg_get_valid_option_names(void) {
   return config_options;
+}
 static void *call_user(struct mg_connection *conn, enum mg_event event) {
   conn->request_info.user_data = conn->ctx->user_data;
   return conn->ctx->user_callback == NULL ? NULL :
     conn->ctx->user_callback(event, conn);
+}
 static int get_option_index(const char *name) {
   int i;
   for (i = 0; config_options[i] != NULL; i += ENTRIES_PER_CONFIG_OPTION) {
     if (strcmp(config_options[i], name) == 0 ||
         strcmp(config_options[i + 1], name) == 0) {
       return i / ENTRIES_PER_CONFIG_OPTION;
+    }
+  }
   return -1;
+}
 const char *mg_get_option(const struct mg_context *ctx, const char *name) {
   int i;
   if ((i = get_option_index(name)) == -1) {
     return NULL;
   } else if (ctx->config[i] == NULL) {
     return "";
   } else {
     return ctx->config[i];
+  }
+}
 static void sockaddr_to_string(char *buf, size_t len,
                                      const union usa *usa) {
   buf[0] = '\0';
 #if defined(USE_IPV6)
   inet_ntop(usa->sa.sa_family, usa->sa.sa_family == AF_INET ?
             (void *) &usa->sin.sin_addr :
             (void *) &usa->sin6.sin6_addr, buf, len);
 #elif defined(_WIN32)
   // Only Windoze Vista (and newer) have inet_ntop()
   strncpy(buf, inet_ntoa(usa->sin.sin_addr), len);
 #else
   inet_ntop(usa->sa.sa_family, (void *) &usa->sin.sin_addr, buf, len);
 #endif
+}
 // Print error message to the opened error log stream.
 static void cry(struct mg_connection *conn, const char *fmt, ...) {
   char buf[MG_BUF_LEN], src_addr[20];
   va_list ap;
   FILE *fp;
   time_t timestamp;
   va_start(ap, fmt);
   (void) vsnprintf(buf, sizeof(buf), fmt, ap);
   va_end(ap);
   // Do not lock when getting the callback value, here and below.
   // I suppose this is fine, since function cannot disappear in the
   // same way string option can.
   conn->request_info.log_message = buf;
   if (call_user(conn, MG_EVENT_LOG) == NULL) {
     fp = conn->ctx->config[ERROR_LOG_FILE] == NULL ? NULL :
       mg_fopen(conn->ctx->config[ERROR_LOG_FILE], "a+");
     if (fp != NULL) {
       flockfile(fp);
       timestamp = time(NULL);
       sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
       fprintf(fp, "[%010lu] [error] [client %s] ", (unsigned long) timestamp,
               src_addr);
       if (conn->request_info.request_method != NULL) {
         fprintf(fp, "%s %s: ", conn->request_info.request_method,
                 conn->request_info.uri);
+      }
       (void) fprintf(fp, "%s", buf);
       fputc('\n', fp);
       funlockfile(fp);
       if (fp != stderr) {
         fclose(fp);
+      }
+    }
+  }
   conn->request_info.log_message = NULL;
+}
 // Return fake connection structure. Used for logging, if connection
 // is not applicable at the moment of logging.
 static struct mg_connection *fc(struct mg_context *ctx) {
   static struct mg_connection fake_connection;
   fake_connection.ctx = ctx;
   return &fake_connection;
+}
 const char *mg_version(void) {
   return MONGOOSE_VERSION;
+}
 const struct mg_request_info *
 mg_get_request_info(const struct mg_connection *conn) {
   return &conn->request_info;
+}
 static void mg_strlcpy(register char *dst, register const char *src, size_t n) {
   for (; *src != '\0' && n > 1; n--) {
     *dst++ = *src++;
+  }
   *dst = '\0';
+}
 static int lowercase(const char *s) {
   return tolower(* (const unsigned char *) s);
+}
 static int mg_strncasecmp(const char *s1, const char *s2, size_t len) {
   int diff = 0;
   if (len > 0)
     do {
       diff = lowercase(s1++) - lowercase(s2++);
     } while (diff == 0 && s1[-1] != '\0' && --len > 0);
   return diff;
+}
 static int mg_strcasecmp(const char *s1, const char *s2) {
   int diff;
   do {
     diff = lowercase(s1++) - lowercase(s2++);
   } while (diff == 0 && s1[-1] != '\0');
   return diff;
+}
 static char * mg_strndup(const char *ptr, size_t len) {
   char *p;
   if ((p = (char *) malloc(len + 1)) != NULL) {
     mg_strlcpy(p, ptr, len + 1);
+  }
   return p;
+}
 static char * mg_strdup(const char *str) {
   return mg_strndup(str, strlen(str));
+}
 // Like snprintf(), but never returns negative value, or a value
 // that is larger than a supplied buffer.
 // Thanks to Adam Zeldis to pointing snprintf()-caused vulnerability
 // in his audit report.
 static int mg_vsnprintf(struct mg_connection *conn, char *buf, size_t buflen,
                         const char *fmt, va_list ap) {
   int n;
   if (buflen == 0)
     return 0;
   n = vsnprintf(buf, buflen, fmt, ap);
   if (n < 0) {
     cry(conn, "vsnprintf error");
     n = 0;
   } else if (n >= (int) buflen) {
     cry(conn, "truncating vsnprintf buffer: [%.*s]",
         n > 200 ? 200 : n, buf);
     n = (int) buflen - 1;
+  }
   buf[n] = '\0';
   return n;
+}
 static int mg_snprintf(struct mg_connection *conn, char *buf, size_t buflen,
                        const char *fmt, ...) {
   va_list ap;
   int n;
   va_start(ap, fmt);
   n = mg_vsnprintf(conn, buf, buflen, fmt, ap);
   va_end(ap);
   return n;
+}
 // Skip the characters until one of the delimiters characters found.
 // 0-terminate resulting word. Skip the delimiter and following whitespaces if any.
 // Advance pointer to buffer to the next word. Return found 0-terminated word.
 // Delimiters can be quoted with quotechar.
 static char *skip_quoted(char **buf, const char *delimiters,
                          const char *whitespace, char quotechar) {
   char *p, *begin_word, *end_word, *end_whitespace;
   begin_word = *buf;
   end_word = begin_word + strcspn(begin_word, delimiters);
   // Check for quotechar
   if (end_word > begin_word) {
     p = end_word - 1;
     while (*p == quotechar) {
       // If there is anything beyond end_word, copy it
       if (*end_word == '\0') {
         *p = '\0';
         break;
       } else {
         size_t end_off = strcspn(end_word + 1, delimiters);
         memmove (p, end_word, end_off + 1);
         p += end_off; // p must correspond to end_word - 1
         end_word += end_off + 1;
+      }
+    }
     for (p++; p < end_word; p++) {
       *p = '\0';
+    }
+  }
   if (*end_word == '\0') {
     *buf = end_word;
   } else {
     end_whitespace = end_word + 1 + strspn(end_word + 1, whitespace);
     for (p = end_word; p < end_whitespace; p++) {
       *p = '\0';
+    }
     *buf = end_whitespace;
+  }
   return begin_word;
+}
 // Simplified version of skip_quoted without quote char
 // and whitespace == delimiters
 static char *skip(char **buf, const char *delimiters) {
   return skip_quoted(buf, delimiters, delimiters, 0);
+}
 // Return HTTP header value, or NULL if not found.
 static const char *get_header(const struct mg_request_info *ri,
                               const char *name) {
   int i;
   for (i = 0; i < ri->num_headers; i++)
     if (!mg_strcasecmp(name, ri->http_headers[i].name))
       return ri->http_headers[i].value;
   return NULL;
+}
 const char *mg_get_header(const struct mg_connection *conn, const char *name) {
   return get_header(&conn->request_info, name);
+}
 // A helper function for traversing a comma separated list of values.
 // It returns a list pointer shifted to the next value, or NULL if the end
 // of the list found.
 // Value is stored in val vector. If value has form "x=y", then eq_val
 // vector is initialized to point to the "y" part, and val vector length
 // is adjusted to point only to "x".
 static const char *next_option(const char *list, struct vec *val,
                                struct vec *eq_val) {
   if (list == NULL || *list == '\0') {
     // End of the list
     list = NULL;
   } else {
     val->ptr = list;
     if ((list = strchr(val->ptr, ',')) != NULL) {
       // Comma found. Store length and shift the list ptr
       val->len = list - val->ptr;
       list++;
     } else {
       // This value is the last one
       list = val->ptr + strlen(val->ptr);
       val->len = list - val->ptr;
+    }
     if (eq_val != NULL) {
       // Value has form "x=y", adjust pointers and lengths
       // so that val points to "x", and eq_val points to "y".
       eq_val->len = 0;
       eq_val->ptr = (const char *) memchr(val->ptr, '=', val->len);
       if (eq_val->ptr != NULL) {
         eq_val->ptr++;  // Skip over '=' character
         eq_val->len = val->ptr + val->len - eq_val->ptr;
         val->len = (eq_val->ptr - val->ptr) - 1;
+      }
+    }
+  }
   return list;
+}
 static int match_prefix(const char *pattern, int pattern_len, const char *str) {
   const char *or_str;
   int i, j, len, res;
   if ((or_str = (const char *) memchr(pattern, '|', pattern_len)) != NULL) {
     res = match_prefix(pattern, or_str - pattern, str);
     return res > 0 ? res :
         match_prefix(or_str + 1, (pattern + pattern_len) - (or_str + 1), str);
+  }
   i = j = 0;
   res = -1;
   for (; i < pattern_len; i++, j++) {
     if (pattern[i] == '?' && str[j] != '\0') {
       continue;
     } else if (pattern[i] == '$') {
       return str[j] == '\0' ? j : -1;
     } else if (pattern[i] == '*') {
       i++;
       if (pattern[i] == '*') {
         i++;
         len = (int) strlen(str + j);
       } else {
         len = (int) strcspn(str + j, "/");
+      }
       if (i == pattern_len) {
         return j + len;
+      }
       do {
         res = match_prefix(pattern + i, pattern_len - i, str + j + len);
       } while (res == -1 && len-- > 0);
       return res == -1 ? -1 : j + res + len;
     } else if (pattern[i] != str[j]) {
       return -1;
+    }
+  }
   return j;
+}
 // HTTP 1.1 assumes keep alive if "Connection:" header is not set
 // This function must tolerate situations when connection info is not
 // set up, for example if request parsing failed.
 static int should_keep_alive(const struct mg_connection *conn) {
   const char *http_version = conn->request_info.http_version;
   const char *header = mg_get_header(conn, "Connection");
   if (conn->must_close ||
       conn->request_info.status_code == 401 ||
       mg_strcasecmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes") != 0 ||
       (header != NULL && mg_strcasecmp(header, "keep-alive") != 0) ||
       (header == NULL && http_version && strcmp(http_version, "1.1"))) {
     return 0;
+  }
   return 1;
+}
 static const char *suggest_connection_header(const struct mg_connection *conn) {
   return should_keep_alive(conn) ? "keep-alive" : "close";
+}
 static void send_http_error(struct mg_connection *, int, const char *,
                             PRINTF_FORMAT_STRING(const char *fmt), ...)
   PRINTF_ARGS(4, 5);
 static void send_http_error(struct mg_connection *conn, int status,
                             const char *reason, const char *fmt, ...) {
   char buf[MG_BUF_LEN];
   va_list ap;
   int len;
   conn->request_info.status_code = status;
   if (call_user(conn, MG_HTTP_ERROR) == NULL) {
     buf[0] = '\0';
     len = 0;
     // Errors 1xx, 204 and 304 MUST NOT send a body
     if (status > 199 && status != 204 && status != 304) {
       len = mg_snprintf(conn, buf, sizeof(buf), "Error %d: %s", status, reason);
       buf[len++] = '\n';
       va_start(ap, fmt);
       len += mg_vsnprintf(conn, buf + len, sizeof(buf) - len, fmt, ap);
       va_end(ap);
+    }
     DEBUG_TRACE(("[%s]", buf));
     mg_printf(conn, "HTTP/1.1 %d %s\r\n"
               "Content-Type: text/plain\r\n"
               "Content-Length: %d\r\n"
               "Connection: %s\r\n\r\n", status, reason, len,
               suggest_connection_header(conn));
     conn->num_bytes_sent += mg_printf(conn, "%s", buf);
+  }
+}
 #if defined(_WIN32) && !defined(__SYMBIAN32__)
 static int pthread_mutex_init(pthread_mutex_t *mutex, void *unused) {
   unused = NULL;
   *mutex = CreateMutex(NULL, FALSE, NULL);
   return *mutex == NULL ? -1 : 0;
+}
 static int pthread_mutex_destroy(pthread_mutex_t *mutex) {
   return CloseHandle(*mutex) == 0 ? -1 : 0;
+}
 static int pthread_mutex_lock(pthread_mutex_t *mutex) {
   return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
+}
 static int pthread_mutex_unlock(pthread_mutex_t *mutex) {
   return ReleaseMutex(*mutex) == 0 ? -1 : 0;
+}
 static int pthread_cond_init(pthread_cond_t *cv, const void *unused) {
   unused = NULL;
   cv->signal = CreateEvent(NULL, FALSE, FALSE, NULL);
   cv->broadcast = CreateEvent(NULL, TRUE, FALSE, NULL);
   return cv->signal != NULL && cv->broadcast != NULL ? 0 : -1;
+}
 static int pthread_cond_wait(pthread_cond_t *cv, pthread_mutex_t *mutex) {
   HANDLE handles[] = {cv->signal, cv->broadcast};
   ReleaseMutex(*mutex);
   WaitForMultipleObjects(2, handles, FALSE, INFINITE);
   return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
+}
 static int pthread_cond_signal(pthread_cond_t *cv) {
   return SetEvent(cv->signal) == 0 ? -1 : 0;
+}
 static int pthread_cond_broadcast(pthread_cond_t *cv) {
   // Implementation with PulseEvent() has race condition, see
   // http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
   return PulseEvent(cv->broadcast) == 0 ? -1 : 0;
+}
 static int pthread_cond_destroy(pthread_cond_t *cv) {
   return CloseHandle(cv->signal) && CloseHandle(cv->broadcast) ? 0 : -1;
+}
 // For Windows, change all slashes to backslashes in path names.
 static void change_slashes_to_backslashes(char *path) {
   int i;
   for (i = 0; path[i] != '\0'; i++) {
     if (path[i] == '/')
       path[i] = '\\';
     // i > 0 check is to preserve UNC paths, like \\server\file.txt
     if (path[i] == '\\' && i > 0)
       while (path[i + 1] == '\\' || path[i + 1] == '/')
         (void) memmove(path + i + 1,
             path + i + 2, strlen(path + i + 1));
+  }
+}
 // Encode 'path' which is assumed UTF-8 string, into UNICODE string.
 // wbuf and wbuf_len is a target buffer and its length.
 static void to_unicode(const char *path, wchar_t *wbuf, size_t wbuf_len) {
   char buf[PATH_MAX], buf2[PATH_MAX], *p;
   mg_strlcpy(buf, path, sizeof(buf));
   change_slashes_to_backslashes(buf);
   // Point p to the end of the file name
   p = buf + strlen(buf) - 1;
   // Trim trailing backslash character
   while (p > buf && *p == '\\' && p[-1] != ':') {
     *p-- = '\0';
+  }
    // Protect from CGI code disclosure.
    // This is very nasty hole. Windows happily opens files with
    // some garbage in the end of file name. So fopen("a.cgi    ", "r")
    // actually opens "a.cgi", and does not return an error!
   if (*p == 0x20 ||               // No space at the end
       (*p == 0x2e && p > buf) ||  // No '.' but allow '.' as full path
       *p == 0x2b ||               // No '+'
       (*p & ~0x7f)) {             // And generally no non-ASCII chars
     (void) fprintf(stderr, "Rejecting suspicious path: [%s]", buf);
     wbuf[0] = L'\0';
   } else {
     // Convert to Unicode and back. If doubly-converted string does not
     // match the original, something is fishy, reject.
     memset(wbuf, 0, wbuf_len * sizeof(wchar_t));
     MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len);
     WideCharToMultiByte(CP_UTF8, 0, wbuf, (int) wbuf_len, buf2, sizeof(buf2),
                         NULL, NULL);
     if (strcmp(buf, buf2) != 0) {
       wbuf[0] = L'\0';
+    }
+  }
+}
 #if defined(_WIN32_WCE)
 static time_t time(time_t *ptime) {
   time_t t;
   SYSTEMTIME st;
   FILETIME ft;
   GetSystemTime(&st);
   SystemTimeToFileTime(&st, &ft);
   t = SYS2UNIX_TIME(ft.dwLowDateTime, ft.dwHighDateTime);
   if (ptime != NULL) {
     *ptime = t;
+  }
   return t;
+}
 static struct tm *localtime(const time_t *ptime, struct tm *ptm) {
   int64_t t = ((int64_t) *ptime) * RATE_DIFF + EPOCH_DIFF;
   FILETIME ft, lft;
   SYSTEMTIME st;
   TIME_ZONE_INFORMATION tzinfo;
   if (ptm == NULL) {
     return NULL;
+  }
   * (int64_t *) &ft = t;
   FileTimeToLocalFileTime(&ft, &lft);
   FileTimeToSystemTime(&lft, &st);
   ptm->tm_year = st.wYear - 1900;
   ptm->tm_mon = st.wMonth - 1;
   ptm->tm_wday = st.wDayOfWeek;
   ptm->tm_mday = st.wDay;
   ptm->tm_hour = st.wHour;
   ptm->tm_min = st.wMinute;
   ptm->tm_sec = st.wSecond;
   ptm->tm_yday = 0; // hope nobody uses this
   ptm->tm_isdst =
     GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_DAYLIGHT ? 1 : 0;
   return ptm;
+}
 static struct tm *gmtime(const time_t *ptime, struct tm *ptm) {
   // FIXME(lsm): fix this.
   return localtime(ptime, ptm);
+}
 static size_t strftime(char *dst, size_t dst_size, const char *fmt,
                        const struct tm *tm) {
   (void) snprintf(dst, dst_size, "implement strftime() for WinCE");
   return 0;
+}
 #endif
 static int mg_rename(const char* oldname, const char* newname) {
   wchar_t woldbuf[PATH_MAX];
   wchar_t wnewbuf[PATH_MAX];
   to_unicode(oldname, woldbuf, ARRAY_SIZE(woldbuf));
   to_unicode(newname, wnewbuf, ARRAY_SIZE(wnewbuf));
   return MoveFileW(woldbuf, wnewbuf) ? 0 : -1;
+}
 static FILE *mg_fopen(const char *path, const char *mode) {
   wchar_t wbuf[PATH_MAX], wmode[20];
   to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
   MultiByteToWideChar(CP_UTF8, 0, mode, -1, wmode, ARRAY_SIZE(wmode));
   return _wfopen(wbuf, wmode);
+}
 static int mg_stat(const char *path, struct mgstat *stp) {
   int ok = -1; // Error
   wchar_t wbuf[PATH_MAX];
   WIN32_FILE_ATTRIBUTE_DATA info;
   to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
   if (GetFileAttributesExW(wbuf, GetFileExInfoStandard, &info) != 0) {
     stp->size = MAKEUQUAD(info.nFileSizeLow, info.nFileSizeHigh);
     stp->mtime = SYS2UNIX_TIME(info.ftLastWriteTime.dwLowDateTime,
                                info.ftLastWriteTime.dwHighDateTime);
     stp->is_directory =
       info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
     ok = 0;  // Success
+  }
   return ok;
+}
 static int mg_remove(const char *path) {
   wchar_t wbuf[PATH_MAX];
   to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
   return DeleteFileW(wbuf) ? 0 : -1;
+}
 static int mg_mkdir(const char *path, int mode) {
   char buf[PATH_MAX];
   wchar_t wbuf[PATH_MAX];
   mode = 0; // Unused
   mg_strlcpy(buf, path, sizeof(buf));
   change_slashes_to_backslashes(buf);
   (void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, sizeof(wbuf));
   return CreateDirectoryW(wbuf, NULL) ? 0 : -1;
+}
 // Implementation of POSIX opendir/closedir/readdir for Windows.
 static DIR * opendir(const char *name) {
   DIR *dir = NULL;
   wchar_t wpath[PATH_MAX];
   DWORD attrs;
   if (name == NULL) {
     SetLastError(ERROR_BAD_ARGUMENTS);
   } else if ((dir = (DIR *) malloc(sizeof(*dir))) == NULL) {
     SetLastError(ERROR_NOT_ENOUGH_MEMORY);
   } else {
     to_unicode(name, wpath, ARRAY_SIZE(wpath));
     attrs = GetFileAttributesW(wpath);
     if (attrs != 0xFFFFFFFF &&
         ((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) {
       (void) wcscat(wpath, L"\\*");
       dir->handle = FindFirstFileW(wpath, &dir->info);
       dir->result.d_name[0] = '\0';
     } else {
       free(dir);
       dir = NULL;
+    }
+  }
   return dir;
+}
 static int closedir(DIR *dir) {
   int result = 0;
   if (dir != NULL) {
     if (dir->handle != INVALID_HANDLE_VALUE)
       result = FindClose(dir->handle) ? 0 : -1;
     free(dir);
   } else {
     result = -1;
     SetLastError(ERROR_BAD_ARGUMENTS);
+  }
   return result;
+}
 static struct dirent *readdir(DIR *dir) {
   struct dirent *result = 0;
   if (dir) {
     if (dir->handle != INVALID_HANDLE_VALUE) {
       result = &dir->result;
       (void) WideCharToMultiByte(CP_UTF8, 0,
           dir->info.cFileName, -1, result->d_name,
           sizeof(result->d_name), NULL, NULL);
       if (!FindNextFileW(dir->handle, &dir->info)) {
         (void) FindClose(dir->handle);
         dir->handle = INVALID_HANDLE_VALUE;
+      }
     } else {
       SetLastError(ERROR_FILE_NOT_FOUND);
+    }
   } else {
     SetLastError(ERROR_BAD_ARGUMENTS);
+  }
   return result;
+}
 #define set_close_on_exec(fd) // No FD_CLOEXEC on Windows
 int mg_start_thread(mg_thread_func_t f, void *p) {
   return _beginthread((void (__cdecl *)(void *)) f, 0, p) == -1L ? -1 : 0;
+}
 static HANDLE dlopen(const char *dll_name, int flags) {
   wchar_t wbuf[PATH_MAX];
   flags = 0; // Unused
   to_unicode(dll_name, wbuf, ARRAY_SIZE(wbuf));
   return LoadLibraryW(wbuf);
+}
 #if !defined(NO_CGI)
 #define SIGKILL 0
 static int kill(pid_t pid, int sig_num) {
   (void) TerminateProcess(pid, sig_num);
   (void) CloseHandle(pid);
   return 0;
+}
 static pid_t spawn_process(struct mg_connection *conn, const char *prog,
                            char *envblk, char *envp[], int fd_stdin,
                            int fd_stdout, const char *dir) {
   HANDLE me;
   char *p, *interp, cmdline[PATH_MAX], buf[PATH_MAX];
   FILE *fp;
   STARTUPINFOA si = { sizeof(si) };
   PROCESS_INFORMATION pi = { 0 };
   envp = NULL; // Unused
   // TODO(lsm): redirect CGI errors to the error log file
   si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
   si.wShowWindow = SW_HIDE;
   me = GetCurrentProcess();
   (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdin), me,
       &si.hStdInput, 0, TRUE, DUPLICATE_SAME_ACCESS);
   (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdout), me,
       &si.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
   // If CGI file is a script, try to read the interpreter line
   interp = conn->ctx->config[CGI_INTERPRETER];
   if (interp == NULL) {
     buf[2] = '\0';
     mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%c%s", dir, DIRSEP, prog);
     if ((fp = fopen(cmdline, "r")) != NULL) {
       (void) fgets(buf, sizeof(buf), fp);
       if (buf[0] != '#' || buf[1] != '!') {
         // First line does not start with "#!". Do not set interpreter.
         buf[2] = '\0';
       } else {
         // Trim whitespace in interpreter name
         for (p = &buf[strlen(buf) - 1]; p > buf && isspace(*p); p--) {
           *p = '\0';
+        }
+      }
       (void) fclose(fp);
+    }
     interp = buf + 2;
+  }
   (void) mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%s%s%c%s",
                      interp, interp[0] == '\0' ? "" : " ", dir, DIRSEP, prog);
   DEBUG_TRACE(("Running [%s]", cmdline));
   if (CreateProcessA(NULL, cmdline, NULL, NULL, TRUE,
         CREATE_NEW_PROCESS_GROUP, envblk, dir, &si, &pi) == 0) {
     cry(conn, "%s: CreateProcess(%s): %d",
         __func__, cmdline, ERRNO);
     pi.hProcess = (pid_t) -1;
+  }
   // Always close these to prevent handle leakage.
   (void) close(fd_stdin);
   (void) close(fd_stdout);
   (void) CloseHandle(si.hStdOutput);
   (void) CloseHandle(si.hStdInput);
   (void) CloseHandle(pi.hThread);
   return (pid_t) pi.hProcess;
+}
 #endif // !NO_CGI
 static int set_non_blocking_mode(SOCKET sock) {
   unsigned long on = 1;
   return ioctlsocket(sock, FIONBIO, &on);
+}
 #else
 static int mg_stat(const char *path, struct mgstat *stp) {
   struct stat st;
   int ok;
   if (stat(path, &st) == 0) {
     ok = 0;
     stp->size = st.st_size;
     stp->mtime = st.st_mtime;
     stp->is_directory = S_ISDIR(st.st_mode);
   } else {
     ok = -1;
+  }
   return ok;
+}
 static void set_close_on_exec(int fd) {
   (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
+}
 int mg_start_thread(mg_thread_func_t func, void *param) {
   pthread_t thread_id;
   pthread_attr_t attr;
   (void) pthread_attr_init(&attr);
   (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
   // TODO(lsm): figure out why mongoose dies on Linux if next line is enabled
   // (void) pthread_attr_setstacksize(&attr, sizeof(struct mg_connection) * 5);
   return pthread_create(&thread_id, &attr, func, param);
+}
 #ifndef NO_CGI
 static pid_t spawn_process(struct mg_connection *conn, const char *prog,
                            char *envblk, char *envp[], int fd_stdin,
                            int fd_stdout, const char *dir) {
   pid_t pid;
   const char *interp;
   envblk = NULL; // Unused
   if ((pid = fork()) == -1) {
     // Parent
     send_http_error(conn, 500, http_500_error, "fork(): %s", strerror(ERRNO));
   } else if (pid == 0) {
     // Child
     if (chdir(dir) != 0) {
       cry(conn, "%s: chdir(%s): %s", __func__, dir, strerror(ERRNO));
     } else if (dup2(fd_stdin, 0) == -1) {
       cry(conn, "%s: dup2(%d, 0): %s", __func__, fd_stdin, strerror(ERRNO));
     } else if (dup2(fd_stdout, 1) == -1) {
       cry(conn, "%s: dup2(%d, 1): %s", __func__, fd_stdout, strerror(ERRNO));
     } else {
       (void) dup2(fd_stdout, 2);
       (void) close(fd_stdin);
       (void) close(fd_stdout);
       interp = conn->ctx->config[CGI_INTERPRETER];
       if (interp == NULL) {
         (void) execle(prog, prog, NULL, envp);
         cry(conn, "%s: execle(%s): %s", __func__, prog, strerror(ERRNO));
       } else {
         (void) execle(interp, interp, prog, NULL, envp);
         cry(conn, "%s: execle(%s %s): %s", __func__, interp, prog,
             strerror(ERRNO));
+      }
+    }
     exit(EXIT_FAILURE);
+  }
   // Parent. Close stdio descriptors
   (void) close(fd_stdin);
   (void) close(fd_stdout);
   return pid;
+}
 #endif // !NO_CGI
 static int set_non_blocking_mode(SOCKET sock) {
   int flags;
   flags = fcntl(sock, F_GETFL, 0);
   (void) fcntl(sock, F_SETFL, flags | O_NONBLOCK);
   return 0;
+}
 #endif // _WIN32
 // Write data to the IO channel - opened file descriptor, socket or SSL
 // descriptor. Return number of bytes written.
 static int64_t push(FILE *fp, SOCKET sock, SSL *ssl, const char *buf,
                     int64_t len) {
   int64_t sent;
   int n, k;
   sent = 0;
   while (sent < len) {
     // How many bytes we send in this iteration
     k = len - sent > INT_MAX ? INT_MAX : (int) (len - sent);
     if (ssl != NULL) {
       n = SSL_write(ssl, buf + sent, k);
     } else if (fp != NULL) {
       n = (int) fwrite(buf + sent, 1, (size_t) k, fp);
       if (ferror(fp))
         n = -1;
     } else {
       n = send(sock, buf + sent, (size_t) k, MSG_NOSIGNAL);
+    }
     if (n < 0)
       break;
     sent += n;
+  }
   return sent;
+}
 // This function is needed to prevent Mongoose to be stuck in a blocking
 // socket read when user requested exit. To do that, we sleep in select
 // with a timeout, and when returned, check the context for the stop flag.
 // If it is set, we return 0, and this means that we must not continue
 // reading, must give up and close the connection and exit serving thread.
 static int wait_until_socket_is_readable(struct mg_connection *conn) {
   int result;
   struct timeval tv;
   fd_set set;
   do {
     tv.tv_sec = 0;
     tv.tv_usec = 300 * 1000;
     FD_ZERO(&set);
     FD_SET(conn->client.sock, &set);
     result = select(conn->client.sock + 1, &set, NULL, NULL, &tv);
   } while ((result == 0 || (result < 0 && ERRNO == EINTR)) &&
            conn->ctx->stop_flag == 0);
   return conn->ctx->stop_flag || result < 0 ? 0 : 1;
+}
 // Read from IO channel - opened file descriptor, socket, or SSL descriptor.
 // Return negative value on error, or number of bytes read on success.
 static int pull(FILE *fp, struct mg_connection *conn, char *buf, int len) {
   int nread;
   if (fp != NULL) {
     // Use read() instead of fread(), because if we're reading from the CGI
     // pipe, fread() may block until IO buffer is filled up. We cannot afford
     // to block and must pass all read bytes immediately to the client.
     nread = read(fileno(fp), buf, (size_t) len);
   } else if (!wait_until_socket_is_readable(conn)) {
     nread = -1;
   } else if (conn->ssl != NULL) {
     nread = SSL_read(conn->ssl, buf, len);
   } else {
     nread = recv(conn->client.sock, buf, (size_t) len, 0);
+  }
   return conn->ctx->stop_flag ? -1 : nread;
+}
 int mg_read(struct mg_connection *conn, void *buf, size_t len) {
   int n, buffered_len, nread;
   assert(conn->next_request != NULL &&
          conn->body != NULL &&
          conn->next_request >= conn->body);
   nread = 0;
   if (conn->consumed_content < conn->content_len) {
     // Adjust number of bytes to read.
     int64_t to_read = conn->content_len - conn->consumed_content;
     if (to_read < (int64_t) len) {
       len = (size_t) to_read;
+    }
     // Return buffered data
     buffered_len = conn->next_request - conn->body;
     if (buffered_len > 0) {
       if (len < (size_t) buffered_len) {
         buffered_len = (int) len;
+      }
       memcpy(buf, conn->body, (size_t) buffered_len);
       len -= buffered_len;
       conn->body += buffered_len;
       conn->consumed_content += buffered_len;
       nread += buffered_len;
       buf = (char *) buf + buffered_len;
+    }
     // We have returned all buffered data. Read new data from the remote socket.
     while (len > 0) {
       n = pull(NULL, conn, (char *) buf, (int) len);
       if (n < 0) {
         nread = n;  // Propagate the error
         break;
       } else if (n == 0) {
         break;  // No more data to read
       } else {
         buf = (char *) buf + n;
         conn->consumed_content += n;
         nread += n;
         len -= n;
+      }
+    }
+  }
   return nread;
+}
 int mg_write(struct mg_connection *conn, const void *buf, size_t len) {
   return (int) push(NULL, conn->client.sock, conn->ssl, (const char *) buf,
                     (int64_t) len);
+}
 int mg_printf(struct mg_connection *conn, const char *fmt, ...) {
   char mem[MG_BUF_LEN], *buf = mem;
   int len;
   va_list ap;
   // Print in a local buffer first, hoping that it is large enough to
   // hold the whole message
   va_start(ap, fmt);
   len = vsnprintf(mem, sizeof(mem), fmt, ap);
   va_end(ap);
   if (len <= 0) {
     // vsnprintf() error, give up
     len = -1;
     cry(conn, "%s(%s, ...): vsnprintf() error", __func__, fmt);
   } else if (len > (int) sizeof(mem) && (buf = malloc(len + 1)) != NULL) {
     // Local buffer is not large enough, allocate big buffer on heap
     va_start(ap, fmt);
     vsnprintf(buf, len + 1, fmt, ap);
     va_end(ap);
     len = mg_write(conn, buf, (size_t) len);
     free(buf);
   } else if (len > (int) sizeof(mem)) {
     // Failed to allocate large enough buffer, give up
     cry(conn, "%s(%s, ...): Can't allocate %d bytes, not printing anything",
         __func__, fmt, len);
     len = -1;
   } else {
     // Copy to the local buffer succeeded
     len = mg_write(conn, buf, (size_t) len);
+  }
   return len;
+}
 // URL-decode input buffer into destination buffer.
 // 0-terminate the destination buffer. Return the length of decoded data.
 // form-url-encoded data differs from URI encoding in a way that it
 // uses '+' as character for space, see RFC 1866 section 8.2.1
 // http://ftp.ics.uci.edu/pub/ietf/html/rfc1866.txt
 static size_t url_decode(const char *src, size_t src_len, char *dst,
                          size_t dst_len, int is_form_url_encoded) {
   size_t i, j;
   int a, b;
 #define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
   for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) {
     if (src[i] == '%' &&
         isxdigit(* (const unsigned char *) (src + i + 1)) &&
         isxdigit(* (const unsigned char *) (src + i + 2))) {
       a = tolower(* (const unsigned char *) (src + i + 1));
       b = tolower(* (const unsigned char *) (src + i + 2));
       dst[j] = (char) ((HEXTOI(a) << 4) | HEXTOI(b));
       i += 2;
     } else if (is_form_url_encoded && src[i] == '+') {
       dst[j] = ' ';
     } else {
       dst[j] = src[i];
+    }
+  }
   dst[j] = '\0'; // Null-terminate the destination
   return j;
+}
 // Scan given buffer and fetch the value of the given variable.
 // It can be specified in query string, or in the POST data.
 // Return -1 if the variable not found, or length of the URL-decoded value
 // stored in dst. The dst buffer is guaranteed to be NUL-terminated if it
 // is not NULL or zero-length. If dst is NULL or zero-length, then
 // -2 is returned.
 int mg_get_var(const char *buf, size_t buf_len, const char *name,
                char *dst, size_t dst_len) {
   const char *p, *e, *s;
   size_t name_len;
   int len;
   if (dst == NULL || dst_len == 0) {
     len = -2;
   } else if (buf == NULL || name == NULL || buf_len == 0) {
     len = -1;
     dst[0] = '\0';
   } else {
     name_len = strlen(name);
     e = buf + buf_len;
     len = -1;
     dst[0] = '\0';
     // buf is "var1=val1&var2=val2...". Find variable first
     for (p = buf; p + name_len < e; p++) {
       if ((p == buf || p[-1] == '&') && p[name_len] == '=' &&
           !mg_strncasecmp(name, p, name_len)) {
         // Point p to variable value
         p += name_len + 1;
         // Point s to the end of the value
         s = (const char *) memchr(p, '&', (size_t)(e - p));
         if (s == NULL) {
           s = e;
+        }
         assert(s >= p);
         // Decode variable into destination buffer
         if ((size_t) (s - p) < dst_len) {
           len = (int) url_decode(p, (size_t)(s - p), dst, dst_len, 1);
+        }
         break;
+      }
+    }
+  }
   return len;
+}
 int mg_get_cookie(const struct mg_connection *conn, const char *cookie_name,
                   char *dst, size_t dst_size) {
   const char *s, *p, *end;
   int name_len, len = -1;
   dst[0] = '\0';
   if ((s = mg_get_header(conn, "Cookie")) == NULL) {
     return -1;
+  }
   name_len = (int) strlen(cookie_name);
   end = s + strlen(s);
   for (; (s = strstr(s, cookie_name)) != NULL; s += name_len)
     if (s[name_len] == '=') {
       s += name_len + 1;
       if ((p = strchr(s, ' ')) == NULL)
         p = end;
       if (p[-1] == ';')
         p--;
       if (*s == '"' && p[-1] == '"' && p > s + 1) {
         s++;
         p--;
+      }
       if ((size_t) (p - s) < dst_size) {
         len = p - s;
         mg_strlcpy(dst, s, (size_t) len + 1);
+      }
       break;
+    }
   return len;
+}
 static int convert_uri_to_file_name(struct mg_connection *conn, char *buf,
                                     size_t buf_len, struct mgstat *st) {
   struct vec a, b;
   const char *rewrite, *uri = conn->request_info.uri;
   char *p;
   int match_len, stat_result;
   buf_len--;  // This is because memmove() for PATH_INFO may shift part
               // of the path one byte on the right.
   mg_snprintf(conn, buf, buf_len, "%s%s", conn->ctx->config[DOCUMENT_ROOT],
               uri);
   rewrite = conn->ctx->config[REWRITE];
   while ((rewrite = next_option(rewrite, &a, &b)) != NULL) {
     if ((match_len = match_prefix(a.ptr, a.len, uri)) > 0) {
       mg_snprintf(conn, buf, buf_len, "%.*s%s", b.len, b.ptr, uri + match_len);
       break;
+    }
+  }
 #if defined(_WIN32) && !defined(__SYMBIAN32__)
   //change_slashes_to_backslashes(buf);
 #endif // _WIN32
   if ((stat_result = mg_stat(buf, st)) != 0) {
     // Support PATH_INFO for CGI scripts.
     for (p = buf + strlen(buf); p > buf + 1; p--) {
       if (*p == '/') {
         *p = '\0';
         if (match_prefix(conn->ctx->config[CGI_EXTENSIONS],
                          strlen(conn->ctx->config[CGI_EXTENSIONS]), buf) > 0 &&
             (stat_result = mg_stat(buf, st)) == 0) {
           // Shift PATH_INFO block one character right, e.g.
           //  "/x.cgi/foo/bar\x00" => "/x.cgi\x00/foo/bar\x00"
           // conn->path_info is pointing to the local variable "path" declared
           // in handle_request(), so PATH_INFO is not valid after
           // handle_request returns.
           conn->path_info = p + 1;
           memmove(p + 2, p + 1, strlen(p + 1) + 1);  // +1 is for trailing \0
           p[1] = '/';
           break;
         } else {
           *p = '/';
           stat_result = -1;
+        }
+      }
+    }
+  }
   return stat_result;
+}
 static int sslize(struct mg_connection *conn, SSL_CTX *s, int (*func)(SSL *)) {
   return (conn->ssl = SSL_new(s)) != NULL &&
     SSL_set_fd(conn->ssl, conn->client.sock) == 1 &&
     func(conn->ssl) == 1;
+}
 // Check whether full request is buffered. Return:
 //   -1  if request is malformed
 //    0  if request is not yet fully buffered
 //   >0  actual request length, including last \r\n\r\n
 static int get_request_len(const char *buf, int buflen) {
   const char *s, *e;
   int len = 0;
   for (s = buf, e = s + buflen - 1; len <= 0 && s < e; s++)
     // Control characters are not allowed but >=128 is.
     if (!isprint(* (const unsigned char *) s) && *s != '\r' &&
         *s != '\n' && * (const unsigned char *) s < 128) {
       len = -1;
       break; // [i_a] abort scan as soon as one malformed character is found; don't let subsequent \r\n\r\n win us over anyhow
     } else if (s[0] == '\n' && s[1] == '\n') {
       len = (int) (s - buf) + 2;
     } else if (s[0] == '\n' && &s[1] < e &&
         s[1] == '\r' && s[2] == '\n') {
       len = (int) (s - buf) + 3;
+    }
   return len;
+}
 // Convert month to the month number. Return -1 on error, or month number
 static int get_month_index(const char *s) {
   size_t i;
   for (i = 0; i < ARRAY_SIZE(month_names); i++)
     if (!strcmp(s, month_names[i]))
       return (int) i;
   return -1;
+}
 // Parse UTC date-time string, and return the corresponding time_t value.
 static time_t parse_date_string(const char *datetime) {
   static const unsigned short days_before_month[] = {
 , 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
   };
   char month_str[32];
   int second, minute, hour, day, month, year, leap_days, days;
   time_t result = (time_t) 0;
   if (((sscanf(datetime, "%d/%3s/%d %d:%d:%d",
                &day, month_str, &year, &hour, &minute, &second) == 6) ||
        (sscanf(datetime, "%d %3s %d %d:%d:%d",
                &day, month_str, &year, &hour, &minute, &second) == 6) ||
        (sscanf(datetime, "%*3s, %d %3s %d %d:%d:%d",
                &day, month_str, &year, &hour, &minute, &second) == 6) ||
        (sscanf(datetime, "%d-%3s-%d %d:%d:%d",
                &day, month_str, &year, &hour, &minute, &second) == 6)) &&
       year > 1970 &&
       (month = get_month_index(month_str)) != -1) {
     year -= 1970;
     leap_days = year / 4 - year / 100 + year / 400;
     days = year * 365 + days_before_month[month] + (day - 1) + leap_days;
     result = days * 24 * 3600 + hour * 3600 + minute * 60 + second;
+  }
   return result;
+}
 // Protect against directory disclosure attack by removing '..',
 // excessive '/' and '\' characters
 static void remove_double_dots_and_double_slashes(char *s) {
   char *p = s;
   while (*s != '\0') {
     *p++ = *s++;
     if (IS_DIRSEP_CHAR(s[-1])) {
       // Skip all following slashes and backslashes
       while (IS_DIRSEP_CHAR(s[0])) {
         s++;
+      }
       // Skip all double-dots
       while (*s == '.' && s[1] == '.') {
         s += 2;
+      }
+    }
+  }
   *p = '\0';
+}
 static const struct {
   const char *extension;
   size_t ext_len;
   const char *mime_type;
 } builtin_mime_types[] = {
   {".html", 5, "text/html"},
   {".htm", 4, "text/html"},
   {".shtm", 5, "text/html"},
   {".shtml", 6, "text/html"},
   {".css", 4, "text/css"},
   {".js",  3, "application/x-javascript"},
   {".ico", 4, "image/x-icon"},
   {".gif", 4, "image/gif"},
   {".jpg", 4, "image/jpeg"},
   {".jpeg", 5, "image/jpeg"},
   {".png", 4, "image/png"},
   {".svg", 4, "image/svg+xml"},
   {".txt", 4, "text/plain"},
   {".torrent", 8, "application/x-bittorrent"},
   {".wav", 4, "audio/x-wav"},
   {".mp3", 4, "audio/x-mp3"},
   {".mid", 4, "audio/mid"},
   {".m3u", 4, "audio/x-mpegurl"},
   {".ram", 4, "audio/x-pn-realaudio"},
   {".xml", 4, "text/xml"},
   {".json",  5, "text/json"},
   {".xslt", 5, "application/xml"},
   {".ra",  3, "audio/x-pn-realaudio"},
   {".doc", 4, "application/msword"},
   {".exe", 4, "application/octet-stream"},
   {".zip", 4, "application/x-zip-compressed"},
   {".xls", 4, "application/excel"},
   {".tgz", 4, "application/x-tar-gz"},
   {".tar", 4, "application/x-tar"},
   {".gz",  3, "application/x-gunzip"},
   {".arj", 4, "application/x-arj-compressed"},
   {".rar", 4, "application/x-arj-compressed"},
   {".rtf", 4, "application/rtf"},
   {".pdf", 4, "application/pdf"},
   {".swf", 4, "application/x-shockwave-flash"},
   {".mpg", 4, "video/mpeg"},
   {".webm", 5, "video/webm"},
   {".mpeg", 5, "video/mpeg"},
   {".mp4", 4, "video/mp4"},
   {".m4v", 4, "video/x-m4v"},
   {".asf", 4, "video/x-ms-asf"},
   {".avi", 4, "video/x-msvideo"},
   {".bmp", 4, "image/bmp"},
   {NULL,  0, NULL}
 };
 const char *mg_get_builtin_mime_type(const char *path) {
   const char *ext;
   size_t i, path_len;
   path_len = strlen(path);
   for (i = 0; builtin_mime_types[i].extension != NULL; i++) {
     ext = path + (path_len - builtin_mime_types[i].ext_len);
     if (path_len > builtin_mime_types[i].ext_len &&
         mg_strcasecmp(ext, builtin_mime_types[i].extension) == 0) {
       return builtin_mime_types[i].mime_type;
+    }
+  }
   return "text/plain";
+}
 // Look at the "path" extension and figure what mime type it has.
 // Store mime type in the vector.
 static void get_mime_type(struct mg_context *ctx, const char *path,
                           struct vec *vec) {
   struct vec ext_vec, mime_vec;
   const char *list, *ext;
   size_t path_len;
   path_len = strlen(path);
   // Scan user-defined mime types first, in case user wants to
   // override default mime types.
   list = ctx->config[EXTRA_MIME_TYPES];
   while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
     // ext now points to the path suffix
     ext = path + path_len - ext_vec.len;
     if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
       *vec = mime_vec;
       return;
+    }
+  }
   vec->ptr = mg_get_builtin_mime_type(path);
   vec->len = strlen(vec->ptr);
+}
 #ifndef HAVE_MD5
 typedef struct MD5Context {
   uint32_t buf[4];
   uint32_t bits[2];
   unsigned char in[64];
 } MD5_CTX;
 #if defined(__BYTE_ORDER) && (__BYTE_ORDER == 1234)
 #define byteReverse(buf, len) // Do nothing
 #else
 static void byteReverse(unsigned char *buf, unsigned longs) {
   uint32_t t;
   do {
     t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
       ((unsigned) buf[1] << 8 | buf[0]);
     *(uint32_t *) buf = t;
     buf += 4;
   } while (--longs);
+}
 #endif
 #define F1(x, y, z) (z ^ (x & (y ^ z)))
 #define F2(x, y, z) F1(z, x, y)
 #define F3(x, y, z) (x ^ y ^ z)
 #define F4(x, y, z) (y ^ (x | ~z))
 #define MD5STEP(f, w, x, y, z, data, s) \
   ( w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x )
 // Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
 // initialization constants.
 static void MD5Init(MD5_CTX *ctx) {
   ctx->buf[0] = 0x67452301;
   ctx->buf[1] = 0xefcdab89;
   ctx->buf[2] = 0x98badcfe;
   ctx->buf[3] = 0x10325476;
   ctx->bits[0] = 0;
   ctx->bits[1] = 0;
+}
 static void MD5Transform(uint32_t buf[4], uint32_t const in[16]) {
   register uint32_t a, b, c, d;
   a = buf[0];
   b = buf[1];
   c = buf[2];
   d = buf[3];
   MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
   MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
   MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
   MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
   MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
   MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
   MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
   MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
   MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
   MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
   MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
   MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
   MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
   MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
   MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
   MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
   MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
   MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
   MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
   MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
   MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
   MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
   MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
   MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
   MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
   MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
   MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
   MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
   MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
   MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
   MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
   MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
   MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
   MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
   MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
   MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
   MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
   MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
   MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
   MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
   MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
   MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
   MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
   MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
   MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
   MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
   MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
   MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
   MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
   MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
   MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
   MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
   MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
   MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
   MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
   MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
   MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
   MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
   MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
   MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
   MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
   MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
   MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
   MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
   buf[0] += a;
   buf[1] += b;
   buf[2] += c;
   buf[3] += d;
+}
 static void MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) {
   uint32_t t;
   t = ctx->bits[0];
   if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
     ctx->bits[1]++;
   ctx->bits[1] += len >> 29;
   t = (t >> 3) & 0x3f;
   if (t) {
     unsigned char *p = (unsigned char *) ctx->in + t;
     t = 64 - t;
     if (len < t) {
       memcpy(p, buf, len);
       return;
+    }
     memcpy(p, buf, t);
     byteReverse(ctx->in, 16);
     MD5Transform(ctx->buf, (uint32_t *) ctx->in);
     buf += t;
     len -= t;
+  }
   while (len >= 64) {
     memcpy(ctx->in, buf, 64);
     byteReverse(ctx->in, 16);
     MD5Transform(ctx->buf, (uint32_t *) ctx->in);
     buf += 64;
     len -= 64;
+  }
   memcpy(ctx->in, buf, len);
+}
 static void MD5Final(unsigned char digest[16], MD5_CTX *ctx) {
   unsigned count;
   unsigned char *p;
   count = (ctx->bits[0] >> 3) & 0x3F;
   p = ctx->in + count;
   *p++ = 0x80;
   count = 64 - 1 - count;
   if (count < 8) {
     memset(p, 0, count);
     byteReverse(ctx->in, 16);
     MD5Transform(ctx->buf, (uint32_t *) ctx->in);
     memset(ctx->in, 0, 56);
   } else {
     memset(p, 0, count - 8);
+  }
   byteReverse(ctx->in, 14);
   ((uint32_t *) ctx->in)[14] = ctx->bits[0];
   ((uint32_t *) ctx->in)[15] = ctx->bits[1];
   MD5Transform(ctx->buf, (uint32_t *) ctx->in);
   byteReverse((unsigned char *) ctx->buf, 4);
   memcpy(digest, ctx->buf, 16);
   memset((char *) ctx, 0, sizeof(*ctx));
+}
 #endif // !HAVE_MD5
 // Stringify binary data. Output buffer must be twice as big as input,
 // because each byte takes 2 bytes in string representation
 static void bin2str(char *to, const unsigned char *p, size_t len) {
   static const char *hex = "0123456789abcdef";
   for (; len--; p++) {
     *to++ = hex[p[0] >> 4];
     *to++ = hex[p[0] & 0x0f];
+  }
   *to = '\0';
+}
 // Return stringified MD5 hash for list of strings. Buffer must be 33 bytes.
 void mg_md5(char buf[33], ...) {
   unsigned char hash[16];
   const char *p;
   va_list ap;
   MD5_CTX ctx;
   MD5Init(&ctx);
   va_start(ap, buf);
   while ((p = va_arg(ap, const char *)) != NULL) {
     MD5Update(&ctx, (const unsigned char *) p, (unsigned) strlen(p));
+  }
   va_end(ap);
   MD5Final(hash, &ctx);
   bin2str(buf, hash, sizeof(hash));
+}
 // Check the user's password, return 1 if OK
 static int check_password(const char *method, const char *ha1, const char *uri,
                           const char *nonce, const char *nc, const char *cnonce,
                           const char *qop, const char *response) {
   char ha2[32 + 1], expected_response[32 + 1];
   // Some of the parameters may be NULL
   if (method == NULL || nonce == NULL || nc == NULL || cnonce == NULL ||
       qop == NULL || response == NULL) {
     return 0;
+  }
   // NOTE(lsm): due to a bug in MSIE, we do not compare the URI
   // TODO(lsm): check for authentication timeout
   if (// strcmp(dig->uri, c->ouri) != 0 ||
       strlen(response) != 32
       // || now - strtoul(dig->nonce, NULL, 10) > 3600
       ) {
     return 0;
+  }
   mg_md5(ha2, method, ":", uri, NULL);
   mg_md5(expected_response, ha1, ":", nonce, ":", nc,
       ":", cnonce, ":", qop, ":", ha2, NULL);
   return mg_strcasecmp(response, expected_response) == 0;
+}
 // Use the global passwords file, if specified by auth_gpass option,
 // or search for .htpasswd in the requested directory.
 static FILE *open_auth_file(struct mg_connection *conn, const char *path) {
   struct mg_context *ctx = conn->ctx;
   char name[PATH_MAX];
   const char *p, *e;
   struct mgstat st;
   FILE *fp;
   if (ctx->config[GLOBAL_PASSWORDS_FILE] != NULL) {
     // Use global passwords file
     fp =  mg_fopen(ctx->config[GLOBAL_PASSWORDS_FILE], "r");
     if (fp == NULL)
       cry(fc(ctx), "fopen(%s): %s",
           ctx->config[GLOBAL_PASSWORDS_FILE], strerror(ERRNO));
   } else if (!mg_stat(path, &st) && st.is_directory) {
     (void) mg_snprintf(conn, name, sizeof(name), "%s%c%s",
         path, DIRSEP, PASSWORDS_FILE_NAME);
     fp = mg_fopen(name, "r");
   } else {
      // Try to find .htpasswd in requested directory.
     for (p = path, e = p + strlen(p) - 1; e > p; e--)
       if (IS_DIRSEP_CHAR(*e))
         break;
     (void) mg_snprintf(conn, name, sizeof(name), "%.*s%c%s",
         (int) (e - p), p, DIRSEP, PASSWORDS_FILE_NAME);
     fp = mg_fopen(name, "r");
+  }
   return fp;
+}
 // Parsed Authorization header
 struct ah {
   char *user, *uri, *cnonce, *response, *qop, *nc, *nonce;
 };
 // Return 1 on success. Always initializes the ah structure.
 static int parse_auth_header(struct mg_connection *conn, char *buf,
                              size_t buf_size, struct ah *ah) {
   char *name, *value, *s;
   const char *auth_header;
   (void) memset(ah, 0, sizeof(*ah));
   if ((auth_header = mg_get_header(conn, "Authorization")) == NULL ||
       mg_strncasecmp(auth_header, "Digest ", 7) != 0) {
     return 0;
+  }
   // Make modifiable copy of the auth header
   (void) mg_strlcpy(buf, auth_header + 7, buf_size);
   s = buf;
   // Parse authorization header
   for (;;) {
     // Gobble initial spaces
     while (isspace(* (unsigned char *) s)) {
       s++;
+    }
     name = skip_quoted(&s, "=", " ", 0);
     // Value is either quote-delimited, or ends at first comma or space.
     if (s[0] == '\"') {
       s++;
       value = skip_quoted(&s, "\"", " ", '\\');
       if (s[0] == ',') {
         s++;
+      }
     } else {
       value = skip_quoted(&s, ", ", " ", 0);  // IE uses commas, FF uses spaces
+    }
     if (*name == '\0') {
       break;
+    }
     if (!strcmp(name, "username")) {
       ah->user = value;
     } else if (!strcmp(name, "cnonce")) {
       ah->cnonce = value;
     } else if (!strcmp(name, "response")) {
       ah->response = value;
     } else if (!strcmp(name, "uri")) {
       ah->uri = value;
     } else if (!strcmp(name, "qop")) {
       ah->qop = value;
     } else if (!strcmp(name, "nc")) {
       ah->nc = value;
     } else if (!strcmp(name, "nonce")) {
       ah->nonce = value;
+    }
+  }
   // CGI needs it as REMOTE_USER
   if (ah->user != NULL) {
     conn->request_info.remote_user = mg_strdup(ah->user);
   } else {
     return 0;
+  }
   return 1;
+}
 // Authorize against the opened passwords file. Return 1 if authorized.
 static int authorize(struct mg_connection *conn, FILE *fp) {
   struct ah ah;
   char line[256], f_user[256], ha1[256], f_domain[256], buf[MG_BUF_LEN];
   if (!parse_auth_header(conn, buf, sizeof(buf), &ah)) {
     return 0;
+  }
   // Loop over passwords file
   while (fgets(line, sizeof(line), fp) != NULL) {
     if (sscanf(line, "%[^:]:%[^:]:%s", f_user, f_domain, ha1) != 3) {
       continue;
+    }
     if (!strcmp(ah.user, f_user) &&
         !strcmp(conn->ctx->config[AUTHENTICATION_DOMAIN], f_domain))
       return check_password(
             conn->request_info.request_method,
             ha1, ah.uri, ah.nonce, ah.nc, ah.cnonce, ah.qop,
             ah.response);
+  }
   return 0;
+}
 // Return 1 if request is authorised, 0 otherwise.
 static int check_authorization(struct mg_connection *conn, const char *path) {
   FILE *fp;
   char fname[PATH_MAX];
   struct vec uri_vec, filename_vec;
   const char *list;
   int authorized;
   fp = NULL;
   authorized = 1;
   list = conn->ctx->config[PROTECT_URI];
   while ((list = next_option(list, &uri_vec, &filename_vec)) != NULL) {
     if (!memcmp(conn->request_info.uri, uri_vec.ptr, uri_vec.len)) {
       (void) mg_snprintf(conn, fname, sizeof(fname), "%.*s",
           filename_vec.len, filename_vec.ptr);
       if ((fp = mg_fopen(fname, "r")) == NULL) {
         cry(conn, "%s: cannot open %s: %s", __func__, fname, strerror(errno));
+      }
       break;
+    }
+  }
   if (fp == NULL) {
     fp = open_auth_file(conn, path);
+  }
   if (fp != NULL) {
     authorized = authorize(conn, fp);
     (void) fclose(fp);
+  }
   return authorized;
+}
 static void send_authorization_request(struct mg_connection *conn) {
   conn->request_info.status_code = 401;
   (void) mg_printf(conn,
       "HTTP/1.1 401 Unauthorized\r\n"
       "Content-Length: 0\r\n"
       "WWW-Authenticate: Digest qop=\"auth\", "
       "realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
       conn->ctx->config[AUTHENTICATION_DOMAIN],
       (unsigned long) time(NULL));
+}
 static int is_authorized_for_put(struct mg_connection *conn) {
   FILE *fp;
   int ret = 0;
   fp = conn->ctx->config[PUT_DELETE_PASSWORDS_FILE] == NULL ? NULL :
     mg_fopen(conn->ctx->config[PUT_DELETE_PASSWORDS_FILE], "r");
   if (fp != NULL) {
     ret = authorize(conn, fp);
     (void) fclose(fp);
+  }
   return ret;
+}
 int mg_modify_passwords_file(const char *fname, const char *domain,
                              const char *user, const char *pass) {
   int found;
   char line[512], u[512], d[512], ha1[33], tmp[PATH_MAX];
   FILE *fp, *fp2;
   found = 0;
   fp = fp2 = NULL;
   // Regard empty password as no password - remove user record.
   if (pass != NULL && pass[0] == '\0') {
     pass = NULL;
+  }
   (void) snprintf(tmp, sizeof(tmp), "%s.tmp", fname);
   // Create the file if does not exist
   if ((fp = mg_fopen(fname, "a+")) != NULL) {
     (void) fclose(fp);
+  }
   // Open the given file and temporary file
   if ((fp = mg_fopen(fname, "r")) == NULL) {
     return 0;
   } else if ((fp2 = mg_fopen(tmp, "w+")) == NULL) {
     fclose(fp);
     return 0;
+  }
   // Copy the stuff to temporary file
   while (fgets(line, sizeof(line), fp) != NULL) {
     if (sscanf(line, "%[^:]:%[^:]:%*s", u, d) != 2) {
       continue;
+    }
     if (!strcmp(u, user) && !strcmp(d, domain)) {
       found++;
       if (pass != NULL) {
         mg_md5(ha1, user, ":", domain, ":", pass, NULL);
         fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
+      }
     } else {
       (void) fprintf(fp2, "%s", line);
+    }
+  }
   // If new user, just add it
   if (!found && pass != NULL) {
     mg_md5(ha1, user, ":", domain, ":", pass, NULL);
     (void) fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
+  }
   // Close files
   (void) fclose(fp);
   (void) fclose(fp2);
   // Put the temp file in place of real file
   (void) mg_remove(fname);
   (void) mg_rename(tmp, fname);
   return 1;
+}
 struct de {
   struct mg_connection *conn;
   char *file_name;
   struct mgstat st;
 };
 static void url_encode(const char *src, char *dst, size_t dst_len) {
   static const char *dont_escape = "._-$,;~()";
   static const char *hex = "0123456789abcdef";
   const char *end = dst + dst_len - 1;
   for (; *src != '\0' && dst < end; src++, dst++) {
     if (isalnum(*(const unsigned char *) src) ||
         strchr(dont_escape, * (const unsigned char *) src) != NULL) {
       *dst = *src;
     } else if (dst + 2 < end) {
       dst[0] = '%';
       dst[1] = hex[(* (const unsigned char *) src) >> 4];
       dst[2] = hex[(* (const unsigned char *) src) & 0xf];
       dst += 2;
+    }
+  }
   *dst = '\0';
+}
 static void print_dir_entry(struct de *de) {
   char size[64], mod[64], href[PATH_MAX];
   if (de->st.is_directory) {
     (void) mg_snprintf(de->conn, size, sizeof(size), "%s", "[DIRECTORY]");
   } else {
      // We use (signed) cast below because MSVC 6 compiler cannot
      // convert unsigned __int64 to double. Sigh.
     if (de->st.size < 1024) {
       (void) mg_snprintf(de->conn, size, sizeof(size),
           "%lu", (unsigned long) de->st.size);
     } else if (de->st.size < 1024 * 1024) {
       (void) mg_snprintf(de->conn, size, sizeof(size),
           "%.1fk", (double) de->st.size / 1024.0);
     } else if (de->st.size < 1024 * 1024 * 1024) {
       (void) mg_snprintf(de->conn, size, sizeof(size),
           "%.1fM", (double) de->st.size / 1048576);
     } else {
       (void) mg_snprintf(de->conn, size, sizeof(size),
           "%.1fG", (double) de->st.size / 1073741824);
+    }
+  }
   (void) strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M", localtime(&de->st.mtime));
   url_encode(de->file_name, href, sizeof(href));
   de->conn->num_bytes_sent += mg_printf(de->conn,
       "<tr><td><a href=\"%s%s%s\">%s%s</a></td>"
       "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
       de->conn->request_info.uri, href, de->st.is_directory ? "/" : "",
       de->file_name, de->st.is_directory ? "/" : "", mod, size);
+}
 // This function is called from send_directory() and used for
 // sorting directory entries by size, or name, or modification time.
 // On windows, __cdecl specification is needed in case if project is built
 // with __stdcall convention. qsort always requires __cdels callback.
 static int WINCDECL compare_dir_entries(const void *p1, const void *p2) {
   const struct de *a = (const struct de *) p1, *b = (const struct de *) p2;
   const char *query_string = a->conn->request_info.query_string;
   int cmp_result = 0;
   if (query_string == NULL) {
     query_string = "na";
+  }
   if (a->st.is_directory && !b->st.is_directory) {
     return -1;  // Always put directories on top
   } else if (!a->st.is_directory && b->st.is_directory) {
     return 1;   // Always put directories on top
   } else if (*query_string == 'n') {
     cmp_result = strcmp(a->file_name, b->file_name);
   } else if (*query_string == 's') {
     cmp_result = a->st.size == b->st.size ? 0 :
       a->st.size > b->st.size ? 1 : -1;
   } else if (*query_string == 'd') {
     cmp_result = a->st.mtime == b->st.mtime ? 0 :
       a->st.mtime > b->st.mtime ? 1 : -1;
+  }
   return query_string[1] == 'd' ? -cmp_result : cmp_result;
+}
 static int must_hide_file(struct mg_connection *conn, const char *path) {
   const char *pw_pattern = "**" PASSWORDS_FILE_NAME "$";
   const char *pattern = conn->ctx->config[HIDE_FILES];
   return match_prefix(pw_pattern, strlen(pw_pattern), path) > 0 ||
     (pattern != NULL && match_prefix(pattern, strlen(pattern), path) > 0);
+}
 static int scan_directory(struct mg_connection *conn, const char *dir,
                           void *data, void (*cb)(struct de *, void *)) {
   char path[PATH_MAX];
   struct dirent *dp;
   DIR *dirp;
   struct de de;
   if ((dirp = opendir(dir)) == NULL) {
     return 0;
   } else {
     de.conn = conn;
     while ((dp = readdir(dirp)) != NULL) {
       // Do not show current dir and hidden files
       if (!strcmp(dp->d_name, ".") ||
           !strcmp(dp->d_name, "..") ||
           must_hide_file(conn, dp->d_name)) {
         continue;
+      }
       mg_snprintf(conn, path, sizeof(path), "%s%c%s", dir, DIRSEP, dp->d_name);
       // If we don't memset stat structure to zero, mtime will have
       // garbage and strftime() will segfault later on in
       // print_dir_entry(). memset is required only if mg_stat()
       // fails. For more details, see
       // http://code.google.com/p/mongoose/issues/detail?id=79
       if (mg_stat(path, &de.st) != 0) {
         memset(&de.st, 0, sizeof(de.st));
+      }
       de.file_name = dp->d_name;
       cb(&de, data);
+    }
     (void) closedir(dirp);
+  }
   return 1;
+}
 struct dir_scan_data {
   struct de *entries;
   int num_entries;
   int arr_size;
 };
 static void dir_scan_callback(struct de *de, void *data) {
   struct dir_scan_data *dsd = (struct dir_scan_data *) data;
   if (dsd->entries == NULL || dsd->num_entries >= dsd->arr_size) {
     dsd->arr_size *= 2;
     dsd->entries = (struct de *) realloc(dsd->entries, dsd->arr_size *
                                          sizeof(dsd->entries[0]));
+  }
   if (dsd->entries == NULL) {
     // TODO(lsm): propagate an error to the caller
     dsd->num_entries = 0;
   } else {
     dsd->entries[dsd->num_entries].file_name = mg_strdup(de->file_name);
     dsd->entries[dsd->num_entries].st = de->st;
     dsd->entries[dsd->num_entries].conn = de->conn;
     dsd->num_entries++;
+  }
+}
 static void handle_directory_request(struct mg_connection *conn,
                                      const char *dir) {
   int i, sort_direction;
   struct dir_scan_data data = { NULL, 0, 128 };
   if (!scan_directory(conn, dir, &data, dir_scan_callback)) {
     send_http_error(conn, 500, "Cannot open directory",
                     "Error: opendir(%s): %s", dir, strerror(ERRNO));
     return;
+  }
   sort_direction = conn->request_info.query_string != NULL &&
     conn->request_info.query_string[1] == 'd' ? 'a' : 'd';
   conn->must_close = 1;
   mg_printf(conn, "%s",
             "HTTP/1.1 200 OK\r\n"
             "Connection: close\r\n"
             "Content-Type: text/html; charset=utf-8\r\n\r\n");
   conn->num_bytes_sent += mg_printf(conn,
       "<html><head><title>Index of %s</title>"
       "<style>th {text-align: left;}</style></head>"
       "<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
       "<tr><th><a href=\"?n%c\">Name</a></th>"
       "<th><a href=\"?d%c\">Modified</a></th>"
       "<th><a href=\"?s%c\">Size</a></th></tr>"
       "<tr><td colspan=\"3\"><hr></td></tr>",
       conn->request_info.uri, conn->request_info.uri,
       sort_direction, sort_direction, sort_direction);
   // Print first entry - link to a parent directory
   conn->num_bytes_sent += mg_printf(conn,
       "<tr><td><a href=\"%s%s\">%s</a></td>"
       "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
       conn->request_info.uri, "..", "Parent directory", "-", "-");
   // Sort and print directory entries
   qsort(data.entries, (size_t) data.num_entries, sizeof(data.entries[0]),
         compare_dir_entries);
   for (i = 0; i < data.num_entries; i++) {
     print_dir_entry(&data.entries[i]);
     free(data.entries[i].file_name);
+  }
   free(data.entries);
   conn->num_bytes_sent += mg_printf(conn, "%s", "</table></body></html>");
   conn->request_info.status_code = 200;
+}
 // Send len bytes from the opened file to the client.
 static void send_file_data(struct mg_connection *conn, FILE *fp, int64_t len) {
   char buf[MG_BUF_LEN];
   int to_read, num_read, num_written;
   while (len > 0) {
     // Calculate how much to read from the file in the buffer
     to_read = sizeof(buf);
     if ((int64_t) to_read > len) {
       to_read = (int) len;
+    }
     // Read from file, exit the loop on error
     if ((num_read = fread(buf, 1, (size_t)to_read, fp)) <= 0) {
       break;
+    }
     // Send read bytes to the client, exit the loop on error
     if ((num_written = mg_write(conn, buf, (size_t)num_read)) != num_read) {
       break;
+    }
     // Both read and were successful, adjust counters
     conn->num_bytes_sent += num_written;
     len -= num_written;
+  }
+}
 static int parse_range_header(const char *header, int64_t *a, int64_t *b) {
   return sscanf(header, "bytes=%" INT64_FMT "-%" INT64_FMT, a, b);
+}
 static void gmt_time_string(char *buf, size_t buf_len, time_t *t) {
   strftime(buf, buf_len, "%a, %d %b %Y %H:%M:%S GMT", gmtime(t));
+}
 static void construct_etag(char *buf, size_t buf_len,
                            const struct mgstat *stp) {
   snprintf(buf, buf_len, "\"%lx.%" INT64_FMT "\"",
            (unsigned long) stp->mtime, stp->size);
+}
 static void handle_file_request(struct mg_connection *conn, const char *path,
                                 struct mgstat *stp) {
   char date[64], lm[64], etag[64], range[64];
   const char *msg = "OK", *hdr;
   time_t curtime = time(NULL);
   int64_t cl, r1, r2;
   struct vec mime_vec;
   FILE *fp;
   int n;
   get_mime_type(conn->ctx, path, &mime_vec);
   cl = stp->size;
   conn->request_info.status_code = 200;
   range[0] = '\0';
   if ((fp = mg_fopen(path, "rb")) == NULL) {
     send_http_error(conn, 500, http_500_error,
         "fopen(%s): %s", path, strerror(ERRNO));
     return;
+  }
   set_close_on_exec(fileno(fp));
   // If Range: header specified, act accordingly
   r1 = r2 = 0;
   hdr = mg_get_header(conn, "Range");
   if (hdr != NULL && (n = parse_range_header(hdr, &r1, &r2)) > 0) {
     conn->request_info.status_code = 206;
     (void) fseeko(fp, r1, SEEK_SET);
     cl = n == 2 ? r2 - r1 + 1: cl - r1;
     (void) mg_snprintf(conn, range, sizeof(range),
         "Content-Range: bytes "
         "%" INT64_FMT "-%"
         INT64_FMT "/%" INT64_FMT "\r\n",
         r1, r1 + cl - 1, stp->size);
     msg = "Partial Content";
+  }
   // Prepare Etag, Date, Last-Modified headers. Must be in UTC, according to
   // http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3
   gmt_time_string(date, sizeof(date), &curtime);
   gmt_time_string(lm, sizeof(lm), &stp->mtime);
   construct_etag(etag, sizeof(etag), stp);
   (void) mg_printf(conn,
       "HTTP/1.1 %d %s\r\n"
       "Date: %s\r\n"
       "Last-Modified: %s\r\n"
       "Etag: %s\r\n"
       "Content-Type: %.*s\r\n"
       "Content-Length: %" INT64_FMT "\r\n"
       "Connection: %s\r\n"
       "Accept-Ranges: bytes\r\n"
       "%s\r\n",
       conn->request_info.status_code, msg, date, lm, etag, (int) mime_vec.len,
       mime_vec.ptr, cl, suggest_connection_header(conn), range);
   if (strcmp(conn->request_info.request_method, "HEAD") != 0) {
     send_file_data(conn, fp, cl);
+  }
   (void) fclose(fp);
+}
 void mg_send_file(struct mg_connection *conn, const char *path) {
   struct mgstat st;
   if (mg_stat(path, &st) == 0) {
     handle_file_request(conn, path, &st);
   } else {
     send_http_error(conn, 404, "Not Found", "%s", "File not found");
+  }
+}
 // Parse HTTP headers from the given buffer, advance buffer to the point
 // where parsing stopped.
 static void parse_http_headers(char **buf, struct mg_request_info *ri) {
   int i;
   for (i = 0; i < (int) ARRAY_SIZE(ri->http_headers); i++) {
     ri->http_headers[i].name = skip_quoted(buf, ":", " ", 0);
     ri->http_headers[i].value = skip(buf, "\r\n");
     if (ri->http_headers[i].name[0] == '\0')
       break;
     ri->num_headers = i + 1;
+  }
+}
 static int is_valid_http_method(const char *method) {
   return !strcmp(method, "GET") || !strcmp(method, "POST") ||
     !strcmp(method, "HEAD") || !strcmp(method, "CONNECT") ||
     !strcmp(method, "PUT") || !strcmp(method, "DELETE") ||
     !strcmp(method, "OPTIONS") || !strcmp(method, "PROPFIND");
+}
 // Parse HTTP request, fill in mg_request_info structure.
 // This function modifies the buffer by NUL-terminating
 // HTTP request components, header names and header values.
 static int parse_http_message(char *buf, int len, struct mg_request_info *ri) {
   int request_length = get_request_len(buf, len);
   if (request_length > 0) {
     // Reset attributes. DO NOT TOUCH is_ssl, remote_ip, remote_port
     ri->remote_user = ri->request_method = ri->uri = ri->http_version = NULL;
     ri->num_headers = 0;
     ri->status_code = -1;
     buf[request_length - 1] = '\0';
     // RFC says that all initial whitespaces should be ingored
     while (*buf != '\0' && isspace(* (unsigned char *) buf)) {
       buf++;
+    }
     ri->request_method = skip(&buf, " ");
     ri->uri = skip(&buf, " ");
     ri->http_version = skip(&buf, "\r\n");
     parse_http_headers(&buf, ri);
+  }
   return request_length;
+}
 static int parse_http_request(char *buf, int len, struct mg_request_info *ri) {
   int result = parse_http_message(buf, len, ri);
   if (result > 0 &&
       is_valid_http_method(ri->request_method) &&
       !strncmp(ri->http_version, "HTTP/", 5)) {
     ri->http_version += 5;   // Skip "HTTP/"
   } else {
     result = -1;
+  }
   return result;
+}
 static int parse_http_response(char *buf, int len, struct mg_request_info *ri) {
   int result = parse_http_message(buf, len, ri);
   return result > 0 && !strncmp(ri->request_method, "HTTP/", 5) ? result : -1;
+}
 // Keep reading the input (either opened file descriptor fd, or socket sock,
 // or SSL descriptor ssl) into buffer buf, until \r\n\r\n appears in the
 // buffer (which marks the end of HTTP request). Buffer buf may already
 // have some data. The length of the data is stored in nread.
 // Upon every read operation, increase nread by the number of bytes read.
 static int read_request(FILE *fp, struct mg_connection *conn,
                         char *buf, int bufsiz, int *nread) {
   int request_len, n = 1;
   request_len = get_request_len(buf, *nread);
   while (*nread < bufsiz && request_len == 0 && n > 0) {
     n = pull(fp, conn, buf + *nread, bufsiz - *nread);
     if (n > 0) {
       *nread += n;
       request_len = get_request_len(buf, *nread);
+    }
+  }
   if (n < 0) {
     // recv() error -> propagate error; do not process a b0rked-with-very-high-probability request
     return -1;
+  }
   return request_len;
+}
 // For given directory path, substitute it to valid index file.
 // Return 0 if index file has been found, -1 if not found.
 // If the file is found, it's stats is returned in stp.
 static int substitute_index_file(struct mg_connection *conn, char *path,
                                  size_t path_len, struct mgstat *stp) {
   const char *list = conn->ctx->config[INDEX_FILES];
   struct mgstat st;
   struct vec filename_vec;
   size_t n = strlen(path);
   int found = 0;
   // The 'path' given to us points to the directory. Remove all trailing
   // directory separator characters from the end of the path, and
   // then append single directory separator character.
   while (n > 0 && IS_DIRSEP_CHAR(path[n - 1])) {
     n--;
+  }
   path[n] = DIRSEP;
   // Traverse index files list. For each entry, append it to the given
   // path and see if the file exists. If it exists, break the loop
   while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
     // Ignore too long entries that may overflow path buffer
     if (filename_vec.len > path_len - (n + 2))
       continue;
     // Prepare full path to the index file
     (void) mg_strlcpy(path + n + 1, filename_vec.ptr, filename_vec.len + 1);
     // Does it exist?
     if (mg_stat(path, &st) == 0) {
       // Yes it does, break the loop
       *stp = st;
       found = 1;
       break;
+    }
+  }
   // If no index file exists, restore directory path
   if (!found) {
     path[n] = '\0';
+  }
   return found;
+}
 // Return True if we should reply 304 Not Modified.
 static int is_not_modified(const struct mg_connection *conn,
                            const struct mgstat *stp) {
   char etag[64];
   const char *ims = mg_get_header(conn, "If-Modified-Since");
   const char *inm = mg_get_header(conn, "If-None-Match");
   construct_etag(etag, sizeof(etag), stp);
   return (inm != NULL && !mg_strcasecmp(etag, inm)) ||
     (ims != NULL && stp->mtime <= parse_date_string(ims));
+}
 static int forward_body_data(struct mg_connection *conn, FILE *fp,
                              SOCKET sock, SSL *ssl) {
   const char *expect;
   char buf[MG_BUF_LEN];
   int to_read, nread, buffered_len, success = 0;
   expect = mg_get_header(conn, "Expect");
   assert(fp != NULL);
   if (conn->content_len == -1) {
     send_http_error(conn, 411, "Length Required", "%s", "");
   } else if (expect != NULL && mg_strcasecmp(expect, "100-continue")) {
     send_http_error(conn, 417, "Expectation Failed", "%s", "");
   } else {
     if (expect != NULL) {
       (void) mg_printf(conn, "%s", "HTTP/1.1 100 Continue\r\n\r\n");
+    }
     buffered_len = conn->next_request - conn->body;
     assert(buffered_len >= 0);
     assert(conn->consumed_content == 0);
     if (buffered_len > 0) {
       if ((int64_t) buffered_len > conn->content_len) {
         buffered_len = (int) conn->content_len;
+      }
       push(fp, sock, ssl, conn->body, (int64_t) buffered_len);
       conn->consumed_content += buffered_len;
       conn->body += buffered_len;
+    }
     nread = 0;
     while (conn->consumed_content < conn->content_len) {
       to_read = sizeof(buf);
       if ((int64_t) to_read > conn->content_len - conn->consumed_content) {
         to_read = (int) (conn->content_len - conn->consumed_content);
+      }
       nread = pull(NULL, conn, buf, to_read);
       if (nread <= 0 || push(fp, sock, ssl, buf, nread) != nread) {
         break;
+      }
       conn->consumed_content += nread;
+    }
     if (conn->consumed_content == conn->content_len) {
       success = nread >= 0;
+    }
     // Each error code path in this function must send an error
     if (!success) {
       send_http_error(conn, 577, http_500_error, "%s", "");
+    }
+  }
   return success;
+}
 #if !defined(NO_CGI)
 // This structure helps to create an environment for the spawned CGI program.
 // Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
 // last element must be NULL.
 // However, on Windows there is a requirement that all these VARIABLE=VALUE\0
 // strings must reside in a contiguous buffer. The end of the buffer is
 // marked by two '\0' characters.
 // We satisfy both worlds: we create an envp array (which is vars), all
 // entries are actually pointers inside buf.
 struct cgi_env_block {
   struct mg_connection *conn;
   char buf[CGI_ENVIRONMENT_SIZE]; // Environment buffer
   int len; // Space taken
   char *vars[MAX_CGI_ENVIR_VARS]; // char **envp
   int nvars; // Number of variables
 };
 static char *addenv(struct cgi_env_block *block,
                     PRINTF_FORMAT_STRING(const char *fmt), ...)
   PRINTF_ARGS(2, 3);
 // Append VARIABLE=VALUE\0 string to the buffer, and add a respective
 // pointer into the vars array.
 static char *addenv(struct cgi_env_block *block, const char *fmt, ...) {
   int n, space;
   char *added;
   va_list ap;
   // Calculate how much space is left in the buffer
   space = sizeof(block->buf) - block->len - 2;
   assert(space >= 0);
   // Make a pointer to the free space int the buffer
   added = block->buf + block->len;
   // Copy VARIABLE=VALUE\0 string into the free space
   va_start(ap, fmt);
   n = mg_vsnprintf(block->conn, added, (size_t) space, fmt, ap);
   va_end(ap);
   // Make sure we do not overflow buffer and the envp array
   if (n > 0 && n + 1 < space &&
       block->nvars < (int) ARRAY_SIZE(block->vars) - 2) {
     // Append a pointer to the added string into the envp array
     block->vars[block->nvars++] = added;
     // Bump up used length counter. Include \0 terminator
     block->len += n + 1;
   } else {
     cry(block->conn, "%s: CGI env buffer truncated for [%s]", __func__, fmt);
+  }
   return added;
+}
 static void prepare_cgi_environment(struct mg_connection *conn,
                                     const char *prog,
                                     struct cgi_env_block *blk) {
   const char *s, *slash;
   struct vec var_vec;
   char *p, src_addr[20];
   int  i;
   blk->len = blk->nvars = 0;
   blk->conn = conn;
   sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
   addenv(blk, "SERVER_NAME=%s", conn->ctx->config[AUTHENTICATION_DOMAIN]);
   addenv(blk, "SERVER_ROOT=%s", conn->ctx->config[DOCUMENT_ROOT]);
   addenv(blk, "DOCUMENT_ROOT=%s", conn->ctx->config[DOCUMENT_ROOT]);
   // Prepare the environment block
   addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
   addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
   addenv(blk, "%s", "REDIRECT_STATUS=200"); // For PHP
   // TODO(lsm): fix this for IPv6 case
   addenv(blk, "SERVER_PORT=%d", ntohs(conn->client.lsa.sin.sin_port));
   addenv(blk, "REQUEST_METHOD=%s", conn->request_info.request_method);
   addenv(blk, "REMOTE_ADDR=%s", src_addr);
   addenv(blk, "REMOTE_PORT=%d", conn->request_info.remote_port);
   addenv(blk, "REQUEST_URI=%s", conn->request_info.uri);
   // SCRIPT_NAME
   assert(conn->request_info.uri[0] == '/');
   slash = strrchr(conn->request_info.uri, '/');
   if ((s = strrchr(prog, '/')) == NULL)
     s = prog;
   addenv(blk, "SCRIPT_NAME=%.*s%s", (int) (slash - conn->request_info.uri),
          conn->request_info.uri, s);
   addenv(blk, "SCRIPT_FILENAME=%s", prog);
   addenv(blk, "PATH_TRANSLATED=%s", prog);
   addenv(blk, "HTTPS=%s", conn->ssl == NULL ? "off" : "on");
   if ((s = mg_get_header(conn, "Content-Type")) != NULL)
     addenv(blk, "CONTENT_TYPE=%s", s);
   if (conn->request_info.query_string != NULL)
     addenv(blk, "QUERY_STRING=%s", conn->request_info.query_string);
   if ((s = mg_get_header(conn, "Content-Length")) != NULL)
     addenv(blk, "CONTENT_LENGTH=%s", s);
   if ((s = getenv("PATH")) != NULL)
     addenv(blk, "PATH=%s", s);
   if (conn->path_info != NULL) {
     addenv(blk, "PATH_INFO=%s", conn->path_info);
+  }
 #if defined(_WIN32)
   if ((s = getenv("COMSPEC")) != NULL) {
     addenv(blk, "COMSPEC=%s", s);
+  }
   if ((s = getenv("SYSTEMROOT")) != NULL) {
     addenv(blk, "SYSTEMROOT=%s", s);
+  }
   if ((s = getenv("SystemDrive")) != NULL) {
     addenv(blk, "SystemDrive=%s", s);
+  }
 #else
   if ((s = getenv("LD_LIBRARY_PATH")) != NULL)
     addenv(blk, "LD_LIBRARY_PATH=%s", s);
 #endif // _WIN32
   if ((s = getenv("PERLLIB")) != NULL)
     addenv(blk, "PERLLIB=%s", s);
   if (conn->request_info.remote_user != NULL) {
     addenv(blk, "REMOTE_USER=%s", conn->request_info.remote_user);
     addenv(blk, "%s", "AUTH_TYPE=Digest");
+  }
   // Add all headers as HTTP_* variables
   for (i = 0; i < conn->request_info.num_headers; i++) {
     p = addenv(blk, "HTTP_%s=%s",
         conn->request_info.http_headers[i].name,
         conn->request_info.http_headers[i].value);
     // Convert variable name into uppercase, and change - to _
     for (; *p != '=' && *p != '\0'; p++) {
       if (*p == '-')
         *p = '_';
       *p = (char) toupper(* (unsigned char *) p);
+    }
+  }
   // Add user-specified variables
   s = conn->ctx->config[CGI_ENVIRONMENT];
   while ((s = next_option(s, &var_vec, NULL)) != NULL) {
     addenv(blk, "%.*s", (int) var_vec.len, var_vec.ptr);
+  }
   blk->vars[blk->nvars++] = NULL;
   blk->buf[blk->len++] = '\0';
   assert(blk->nvars < (int) ARRAY_SIZE(blk->vars));
   assert(blk->len > 0);
   assert(blk->len < (int) sizeof(blk->buf));
+}
 static void handle_cgi_request(struct mg_connection *conn, const char *prog) {
   int headers_len, data_len, i, fd_stdin[2], fd_stdout[2];
   const char *status, *status_text;
   char buf[16384], *pbuf, dir[PATH_MAX], *p;
   struct mg_request_info ri;
   struct cgi_env_block blk;
   FILE *in, *out;
   pid_t pid;
   prepare_cgi_environment(conn, prog, &blk);
   // CGI must be executed in its own directory. 'dir' must point to the
   // directory containing executable program, 'p' must point to the
   // executable program name relative to 'dir'.
   (void) mg_snprintf(conn, dir, sizeof(dir), "%s", prog);
   if ((p = strrchr(dir, DIRSEP)) != NULL) {
     *p++ = '\0';
   } else {
     dir[0] = '.', dir[1] = '\0';
     p = (char *) prog;
+  }
   pid = (pid_t) -1;
   fd_stdin[0] = fd_stdin[1] = fd_stdout[0] = fd_stdout[1] = -1;
   in = out = NULL;
   if (pipe(fd_stdin) != 0 || pipe(fd_stdout) != 0) {
     send_http_error(conn, 500, http_500_error,
         "Cannot create CGI pipe: %s", strerror(ERRNO));
     goto done;
   } else if ((pid = spawn_process(conn, p, blk.buf, blk.vars,
           fd_stdin[0], fd_stdout[1], dir)) == (pid_t) -1) {
     send_http_error(conn, 500, http_500_error,
         "Cannot spawn CGI process [%s]: %s", prog, strerror(ERRNO));
     goto done;
   } else if ((in = fdopen(fd_stdin[1], "wb")) == NULL ||
       (out = fdopen(fd_stdout[0], "rb")) == NULL) {
     send_http_error(conn, 500, http_500_error,
         "fopen: %s", strerror(ERRNO));
     goto done;
+  }
   setbuf(in, NULL);
   setbuf(out, NULL);
   // spawn_process() must close those!
   // If we don't mark them as closed, close() attempt before
   // return from this function throws an exception on Windows.
   // Windows does not like when closed descriptor is closed again.
   fd_stdin[0] = fd_stdout[1] = -1;
   // Send POST data to the CGI process if needed
   if (!strcmp(conn->request_info.request_method, "POST") &&
       !forward_body_data(conn, in, INVALID_SOCKET, NULL)) {
     goto done;
+  }
   // Close so child gets an EOF.
   fclose(in);
   in = NULL;
   // Now read CGI reply into a buffer. We need to set correct
   // status code, thus we need to see all HTTP headers first.
   // Do not send anything back to client, until we buffer in all
   // HTTP headers.
   data_len = 0;
   headers_len = read_request(out, fc(conn->ctx), buf, sizeof(buf), &data_len);
   if (headers_len <= 0) {
     send_http_error(conn, 500, http_500_error,
                     "CGI program sent malformed or too big (>%u bytes) "
                     "HTTP headers: [%.*s]",
                     (unsigned) sizeof(buf), data_len, buf);
     goto done;
+  }
   pbuf = buf;
   buf[headers_len - 1] = '\0';
   parse_http_headers(&pbuf, &ri);
   // Make up and send the status line
   status_text = "OK";
   if ((status = get_header(&ri, "Status")) != NULL) {
     conn->request_info.status_code = atoi(status);
     status_text = status;
     while (isdigit(* (unsigned char *) status_text) || *status_text == ' ') {
       status_text++;
+    }
   } else if (get_header(&ri, "Location") != NULL) {
     conn->request_info.status_code = 302;
   } else {
     conn->request_info.status_code = 200;
+  }
   if (get_header(&ri, "Connection") != NULL &&
       !mg_strcasecmp(get_header(&ri, "Connection"), "keep-alive")) {
     conn->must_close = 1;
+  }
   (void) mg_printf(conn, "HTTP/1.1 %d %s\r\n", conn->request_info.status_code,
                    status_text);
   // Send headers
   for (i = 0; i < ri.num_headers; i++) {
     mg_printf(conn, "%s: %s\r\n",
               ri.http_headers[i].name, ri.http_headers[i].value);
+  }
   (void) mg_write(conn, "\r\n", 2);
   // Send chunk of data that may have been read after the headers
   conn->num_bytes_sent += mg_write(conn, buf + headers_len,
                                    (size_t)(data_len - headers_len));
   // Read the rest of CGI output and send to the client
   send_file_data(conn, out, INT64_MAX);
 done:
   if (pid != (pid_t) -1) {
     kill(pid, SIGKILL);
+  }
   if (fd_stdin[0] != -1) {
     (void) close(fd_stdin[0]);
+  }
   if (fd_stdout[1] != -1) {
     (void) close(fd_stdout[1]);
+  }
   if (in != NULL) {
     (void) fclose(in);
   } else if (fd_stdin[1] != -1) {
     (void) close(fd_stdin[1]);
+  }
   if (out != NULL) {
     (void) fclose(out);
   } else if (fd_stdout[0] != -1) {
     (void) close(fd_stdout[0]);
+  }
+}
 #endif // !NO_CGI
 // For a given PUT path, create all intermediate subdirectories
 // for given path. Return 0 if the path itself is a directory,
 // or -1 on error, 1 if OK.
 static int put_dir(const char *path) {
   char buf[PATH_MAX];
   const char *s, *p;
   struct mgstat st;
   int len, res = 1;
   for (s = p = path + 2; (p = strchr(s, DIRSEP)) != NULL; s = ++p) {
     len = p - path;
     if (len >= (int) sizeof(buf)) {
       res = -1;
       break;
+    }
     memcpy(buf, path, len);
     buf[len] = '\0';
     // Try to create intermediate directory
     DEBUG_TRACE(("mkdir(%s)", buf));
     if (mg_stat(buf, &st) == -1 && mg_mkdir(buf, 0755) != 0) {
       res = -1;
       break;
+    }
     // Is path itself a directory?
     if (p[1] == '\0') {
       res = 0;
+    }
+  }
   return res;
+}
 static void put_file(struct mg_connection *conn, const char *path) {
   struct mgstat st;
   const char *range;
   int64_t r1, r2;
   FILE *fp;
   int rc;
   conn->request_info.status_code = mg_stat(path, &st) == 0 ? 200 : 201;
   if ((rc = put_dir(path)) == 0) {
     mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n", conn->request_info.status_code);
   } else if (rc == -1) {
     send_http_error(conn, 500, http_500_error,
         "put_dir(%s): %s", path, strerror(ERRNO));
   } else if ((fp = mg_fopen(path, "wb+")) == NULL) {
     send_http_error(conn, 500, http_500_error,
         "fopen(%s): %s", path, strerror(ERRNO));
   } else {
     set_close_on_exec(fileno(fp));
     range = mg_get_header(conn, "Content-Range");
     r1 = r2 = 0;
     if (range != NULL && parse_range_header(range, &r1, &r2) > 0) {
       conn->request_info.status_code = 206;
       // TODO(lsm): handle seek error
       (void) fseeko(fp, r1, SEEK_SET);
+    }
     if (forward_body_data(conn, fp, INVALID_SOCKET, NULL))
       (void) mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n",
           conn->request_info.status_code);
     (void) fclose(fp);
+  }
+}
 static void send_ssi_file(struct mg_connection *, const char *, FILE *, int);
 static void do_ssi_include(struct mg_connection *conn, const char *ssi,
                            char *tag, int include_level) {
   char file_name[MG_BUF_LEN], path[PATH_MAX], *p;
   FILE *fp;
   // sscanf() is safe here, since send_ssi_file() also uses buffer
   // of size MG_BUF_LEN to get the tag. So strlen(tag) is always < MG_BUF_LEN.
   if (sscanf(tag, " virtual=\"%[^\"]\"", file_name) == 1) {
     // File name is relative to the webserver root
     (void) mg_snprintf(conn, path, sizeof(path), "%s%c%s",
         conn->ctx->config[DOCUMENT_ROOT], DIRSEP, file_name);
   } else if (sscanf(tag, " file=\"%[^\"]\"", file_name) == 1) {
     // File name is relative to the webserver working directory
     // or it is absolute system path
     (void) mg_snprintf(conn, path, sizeof(path), "%s", file_name);
   } else if (sscanf(tag, " \"%[^\"]\"", file_name) == 1) {
     // File name is relative to the currect document
     (void) mg_snprintf(conn, path, sizeof(path), "%s", ssi);
     if ((p = strrchr(path, DIRSEP)) != NULL) {
       p[1] = '\0';
+    }
     (void) mg_snprintf(conn, path + strlen(path),
         sizeof(path) - strlen(path), "%s", file_name);
   } else {
     cry(conn, "Bad SSI #include: [%s]", tag);
     return;
+  }
   if ((fp = mg_fopen(path, "rb")) == NULL) {
     cry(conn, "Cannot open SSI #include: [%s]: fopen(%s): %s",
         tag, path, strerror(ERRNO));
   } else {
     set_close_on_exec(fileno(fp));
     if (match_prefix(conn->ctx->config[SSI_EXTENSIONS],
                      strlen(conn->ctx->config[SSI_EXTENSIONS]), path) > 0) {
       send_ssi_file(conn, path, fp, include_level + 1);
     } else {
       send_file_data(conn, fp, INT64_MAX);
+    }
     (void) fclose(fp);
+  }
+}
 #if !defined(NO_POPEN)
 static void do_ssi_exec(struct mg_connection *conn, char *tag) {
   char cmd[MG_BUF_LEN];
   FILE *fp;
   if (sscanf(tag, " \"%[^\"]\"", cmd) != 1) {
     cry(conn, "Bad SSI #exec: [%s]", tag);
   } else if ((fp = popen(cmd, "r")) == NULL) {
     cry(conn, "Cannot SSI #exec: [%s]: %s", cmd, strerror(ERRNO));
   } else {
     send_file_data(conn, fp, INT64_MAX);
     (void) pclose(fp);
+  }
+}
 #endif // !NO_POPEN
 static void send_ssi_file(struct mg_connection *conn, const char *path,
                           FILE *fp, int include_level) {
   char buf[MG_BUF_LEN];
   int ch, len, in_ssi_tag;
   if (include_level > 10) {
     cry(conn, "SSI #include level is too deep (%s)", path);
     return;
+  }
   in_ssi_tag = 0;
   len = 0;
   while ((ch = fgetc(fp)) != EOF) {
     if (in_ssi_tag && ch == '>') {
       in_ssi_tag = 0;
       buf[len++] = (char) ch;
       buf[len] = '\0';
       assert(len <= (int) sizeof(buf));
       if (len < 6 || memcmp(buf, "<!--#", 5) != 0) {
         // Not an SSI tag, pass it
         (void) mg_write(conn, buf, (size_t)len);
       } else {
         if (!memcmp(buf + 5, "include", 7)) {
           do_ssi_include(conn, path, buf + 12, include_level);
 #if !defined(NO_POPEN)
         } else if (!memcmp(buf + 5, "exec", 4)) {
           do_ssi_exec(conn, buf + 9);
 #endif // !NO_POPEN
         } else {
           cry(conn, "%s: unknown SSI " "command: \"%s\"", path, buf);
+        }
+      }
       len = 0;
     } else if (in_ssi_tag) {
       if (len == 5 && memcmp(buf, "<!--#", 5) != 0) {
         // Not an SSI tag
         in_ssi_tag = 0;
       } else if (len == (int) sizeof(buf) - 2) {
         cry(conn, "%s: SSI tag is too large", path);
         len = 0;
+      }
       buf[len++] = ch & 0xff;
     } else if (ch == '<') {
       in_ssi_tag = 1;
       if (len > 0) {
         (void) mg_write(conn, buf, (size_t)len);
+      }
       len = 0;
       buf[len++] = ch & 0xff;
     } else {
       buf[len++] = ch & 0xff;
       if (len == (int) sizeof(buf)) {
         (void) mg_write(conn, buf, (size_t)len);
         len = 0;
+      }
+    }
+  }
   // Send the rest of buffered data
   if (len > 0) {
     (void) mg_write(conn, buf, (size_t)len);
+  }
+}
 static void handle_ssi_file_request(struct mg_connection *conn,
                                     const char *path) {
   FILE *fp;
   if ((fp = mg_fopen(path, "rb")) == NULL) {
     send_http_error(conn, 500, http_500_error, "fopen(%s): %s", path,
                     strerror(ERRNO));
   } else {
     conn->must_close = 1;
     set_close_on_exec(fileno(fp));
     mg_printf(conn, "HTTP/1.1 200 OK\r\n"
               "Content-Type: text/html\r\nConnection: %s\r\n\r\n",
               suggest_connection_header(conn));
     send_ssi_file(conn, path, fp, 0);
     (void) fclose(fp);
+  }
+}
 static void send_options(struct mg_connection *conn) {
   conn->request_info.status_code = 200;
   (void) mg_printf(conn,
       "HTTP/1.1 200 OK\r\n"
       "Allow: GET, POST, HEAD, CONNECT, PUT, DELETE, OPTIONS\r\n"
       "DAV: 1\r\n\r\n");
+}
 // Writes PROPFIND properties for a collection element
 static void print_props(struct mg_connection *conn, const char* uri,
                         struct mgstat* st) {
   char mtime[64];
   gmt_time_string(mtime, sizeof(mtime), &st->mtime);
   conn->num_bytes_sent += mg_printf(conn,
       "<d:response>"
        "<d:href>%s</d:href>"
        "<d:propstat>"
         "<d:prop>"
          "<d:resourcetype>%s</d:resourcetype>"
          "<d:getcontentlength>%" INT64_FMT "</d:getcontentlength>"
          "<d:getlastmodified>%s</d:getlastmodified>"
         "</d:prop>"
         "<d:status>HTTP/1.1 200 OK</d:status>"
        "</d:propstat>"
       "</d:response>\n",
       uri,
       st->is_directory ? "<d:collection/>" : "",
       st->size,
       mtime);
+}
 static void print_dav_dir_entry(struct de *de, void *data) {
   char href[PATH_MAX];
   struct mg_connection *conn = (struct mg_connection *) data;
   mg_snprintf(conn, href, sizeof(href), "%s%s",
               conn->request_info.uri, de->file_name);
   print_props(conn, href, &de->st);
+}
 static void handle_propfind(struct mg_connection *conn, const char* path,
                             struct mgstat* st) {
   const char *depth = mg_get_header(conn, "Depth");
   conn->must_close = 1;
   conn->request_info.status_code = 207;
   mg_printf(conn, "HTTP/1.1 207 Multi-Status\r\n"
             "Connection: close\r\n"
             "Content-Type: text/xml; charset=utf-8\r\n\r\n");
   conn->num_bytes_sent += mg_printf(conn,
       "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
       "<d:multistatus xmlns:d='DAV:'>\n");
   // Print properties for the requested resource itself
   print_props(conn, conn->request_info.uri, st);
   // If it is a directory, print directory entries too if Depth is not 0
   if (st->is_directory &&
       !mg_strcasecmp(conn->ctx->config[ENABLE_DIRECTORY_LISTING], "yes") &&
       (depth == NULL || strcmp(depth, "0") != 0)) {
     scan_directory(conn, path, conn, &print_dav_dir_entry);
+  }
   conn->num_bytes_sent += mg_printf(conn, "%s\n", "</d:multistatus>");
+}
 // This is the heart of the Mongoose's logic.
 // This function is called when the request is read, parsed and validated,
 // and Mongoose must decide what action to take: serve a file, or
 // a directory, or call embedded function, etcetera.
 static void handle_request(struct mg_connection *conn) {
   struct mg_request_info *ri = &conn->request_info;
   char path[PATH_MAX];
   int stat_result, uri_len;
   struct mgstat st;
   if ((conn->request_info.query_string = strchr(ri->uri, '?')) != NULL) {
     *conn->request_info.query_string++ = '\0';
+  }
   uri_len = (int) strlen(ri->uri);
   url_decode(ri->uri, (size_t)uri_len, ri->uri, (size_t)(uri_len + 1), 0);
   remove_double_dots_and_double_slashes(ri->uri);
   stat_result = convert_uri_to_file_name(conn, path, sizeof(path), &st);
   DEBUG_TRACE(("%s", ri->uri));
   if (!check_authorization(conn, path)) {
     send_authorization_request(conn);
   } else if (call_user(conn, MG_NEW_REQUEST) != NULL) {
     // Do nothing, callback has served the request
   } else if (!strcmp(ri->request_method, "OPTIONS")) {
     send_options(conn);
   } else if (conn->ctx->config[DOCUMENT_ROOT] == NULL) {
     send_http_error(conn, 404, "Not Found", "Not Found");
   } else if ((!strcmp(ri->request_method, "PUT") ||
         !strcmp(ri->request_method, "DELETE")) &&
       (conn->ctx->config[PUT_DELETE_PASSWORDS_FILE] == NULL ||
        is_authorized_for_put(conn) != 1)) {
     send_authorization_request(conn);
   } else if (!strcmp(ri->request_method, "PUT")) {
     put_file(conn, path);
   } else if (!strcmp(ri->request_method, "DELETE")) {
     if (mg_remove(path) == 0) {
       send_http_error(conn, 200, "OK", "%s", "");
     } else {
       send_http_error(conn, 500, http_500_error, "remove(%s): %s", path,
                       strerror(ERRNO));
+    }
   } else if (stat_result != 0 || must_hide_file(conn, path)) {
     send_http_error(conn, 404, "Not Found", "%s", "File not found");
   } else if (st.is_directory && ri->uri[uri_len - 1] != '/') {
     (void) mg_printf(conn, "HTTP/1.1 301 Moved Permanently\r\n"
                      "Location: %s/\r\n\r\n", ri->uri);
   } else if (!strcmp(ri->request_method, "PROPFIND")) {
     handle_propfind(conn, path, &st);
   } else if (st.is_directory &&
              !substitute_index_file(conn, path, sizeof(path), &st)) {
     if (!mg_strcasecmp(conn->ctx->config[ENABLE_DIRECTORY_LISTING], "yes")) {
       handle_directory_request(conn, path);
     } else {
       send_http_error(conn, 403, "Directory Listing Denied",
           "Directory listing denied");
+    }
 #if !defined(NO_CGI)
   } else if (match_prefix(conn->ctx->config[CGI_EXTENSIONS],
                           strlen(conn->ctx->config[CGI_EXTENSIONS]),
                           path) > 0) {
     if (strcmp(ri->request_method, "POST") &&
         strcmp(ri->request_method, "GET")) {
       send_http_error(conn, 501, "Not Implemented",
                       "Method %s is not implemented", ri->request_method);
     } else {
       handle_cgi_request(conn, path);
+    }
 #endif // !NO_CGI
   } else if (match_prefix(conn->ctx->config[SSI_EXTENSIONS],
                           strlen(conn->ctx->config[SSI_EXTENSIONS]),
                           path) > 0) {
     handle_ssi_file_request(conn, path);
   } else if (is_not_modified(conn, &st)) {
     send_http_error(conn, 304, "Not Modified", "%s", "");
   } else {
     handle_file_request(conn, path, &st);
+  }
+}
 static void close_all_listening_sockets(struct mg_context *ctx) {
   struct socket *sp, *tmp;
   for (sp = ctx->listening_sockets; sp != NULL; sp = tmp) {
     tmp = sp->next;
     (void) closesocket(sp->sock);
     free(sp);
+  }
+}
 // Valid listening port specification is: [ip_address:]port[s]
 // Examples: 80, 443s, 127.0.0.1:3128, 1.2.3.4:8080s
 // TODO(lsm): add parsing of the IPv6 address
 static int parse_port_string(const struct vec *vec, struct socket *so) {
   int a, b, c, d, port, len;
   // MacOS needs that. If we do not zero it, subsequent bind() will fail.
   // Also, all-zeroes in the socket address means binding to all addresses
   // for both IPv4 and IPv6 (INADDR_ANY and IN6ADDR_ANY_INIT).
   memset(so, 0, sizeof(*so));
   if (sscanf(vec->ptr, "%d.%d.%d.%d:%d%n", &a, &b, &c, &d, &port, &len) == 5) {
     // Bind to a specific IPv4 address
     so->lsa.sin.sin_addr.s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d);
   } else if (sscanf(vec->ptr, "%d%n", &port, &len) != 1 ||
              len <= 0 ||
              len > (int) vec->len ||
              (vec->ptr[len] && vec->ptr[len] != 's' && vec->ptr[len] != ',')) {
     return 0;
+  }
   so->is_ssl = vec->ptr[len] == 's';
 #if defined(USE_IPV6)
   so->lsa.sin6.sin6_family = AF_INET6;
   so->lsa.sin6.sin6_port = htons((uint16_t) port);
 #else
   so->lsa.sin.sin_family = AF_INET;
   so->lsa.sin.sin_port = htons((uint16_t) port);
 #endif
   return 1;
+}
 static int set_ports_option(struct mg_context *ctx) {
   const char *list = ctx->config[LISTENING_PORTS];
   int on = 1, success = 1;
   SOCKET sock;
   struct vec vec;
   struct socket so, *listener;
   while (success && (list = next_option(list, &vec, NULL)) != NULL) {
     if (!parse_port_string(&vec, &so)) {
       cry(fc(ctx), "%s: %.*s: invalid port spec. Expecting list of: %s",
           __func__, (int) vec.len, vec.ptr, "[IP_ADDRESS:]PORT[s|p]");
       success = 0;
     } else if (so.is_ssl &&
                (ctx->ssl_ctx == NULL || ctx->config[SSL_CERTIFICATE] == NULL)) {
       cry(fc(ctx), "Cannot add SSL socket, is -ssl_certificate option set?");
       success = 0;
     } else if ((sock = socket(so.lsa.sa.sa_family, SOCK_STREAM, 6)) ==
                INVALID_SOCKET ||
 #if !defined(_WIN32)
                // On Windows, SO_REUSEADDR is recommended only for
                // broadcast UDP sockets
                setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &on,
                           sizeof(on)) != 0 ||
 #endif // !_WIN32
                // Set TCP keep-alive. This is needed because if HTTP-level
                // keep-alive is enabled, and client resets the connection,
                // server won't get TCP FIN or RST and will keep the connection
                // open forever. With TCP keep-alive, next keep-alive
                // handshake will figure out that the client is down and
                // will close the server end.
                // Thanks to Igor Klopov who suggested the patch.
                setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (void *) &on,
                           sizeof(on)) != 0 ||
                bind(sock, &so.lsa.sa, sizeof(so.lsa)) != 0 ||
                listen(sock, SOMAXCONN) != 0) {
       closesocket(sock);
       cry(fc(ctx), "%s: cannot bind to %.*s: %s", __func__,
           vec.len, vec.ptr, strerror(ERRNO));
       success = 0;
     } else if ((listener = (struct socket *)
                 calloc(1, sizeof(*listener))) == NULL) {
       // NOTE(lsm): order is important: call cry before closesocket(),
       // cause closesocket() alters the errno.
       cry(fc(ctx), "%s: %s", __func__, strerror(ERRNO));
       closesocket(sock);
       success = 0;
     } else {
       *listener = so;
       listener->sock = sock;
       set_close_on_exec(listener->sock);
       listener->next = ctx->listening_sockets;
       ctx->listening_sockets = listener;
+    }
+  }
   if (!success) {
     close_all_listening_sockets(ctx);
+  }
   return success;
+}
 static void log_header(const struct mg_connection *conn, const char *header,
                        FILE *fp) {
   const char *header_value;
   if ((header_value = mg_get_header(conn, header)) == NULL) {
     (void) fprintf(fp, "%s", " -");
   } else {
     (void) fprintf(fp, " \"%s\"", header_value);
+  }
+}
 static void log_access(const struct mg_connection *conn) {
   const struct mg_request_info *ri;
   FILE *fp;
   char date[64], src_addr[20];
   fp = conn->ctx->config[ACCESS_LOG_FILE] == NULL ?  NULL :
     mg_fopen(conn->ctx->config[ACCESS_LOG_FILE], "a+");
   if (fp == NULL)
     return;
   strftime(date, sizeof(date), "%d/%b/%Y:%H:%M:%S %z",
            localtime(&conn->birth_time));
   ri = &conn->request_info;
   flockfile(fp);
   sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
   fprintf(fp, "%s - %s [%s] \"%s %s HTTP/%s\" %d %" INT64_FMT,
           src_addr, ri->remote_user == NULL ? "-" : ri->remote_user, date,
           ri->request_method ? ri->request_method : "-",
           ri->uri ? ri->uri : "-", ri->http_version,
           conn->request_info.status_code, conn->num_bytes_sent);
   log_header(conn, "Referer", fp);
   log_header(conn, "User-Agent", fp);
   fputc('\n', fp);
   fflush(fp);
   funlockfile(fp);
   fclose(fp);
+}
 static int isbyte(int n) {
   return n >= 0 && n <= 255;
+}
 // Verify given socket address against the ACL.
 // Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
 static int check_acl(struct mg_context *ctx, const union usa *usa) {
   int a, b, c, d, n, mask, allowed;
   char flag;
   uint32_t acl_subnet, acl_mask, remote_ip;
   struct vec vec;
   const char *list = ctx->config[ACCESS_CONTROL_LIST];
   if (list == NULL) {
     return 1;
+  }
   (void) memcpy(&remote_ip, &usa->sin.sin_addr, sizeof(remote_ip));
   // If any ACL is set, deny by default
   allowed = '-';
   while ((list = next_option(list, &vec, NULL)) != NULL) {
     mask = 32;
     if (sscanf(vec.ptr, "%c%d.%d.%d.%d%n", &flag, &a, &b, &c, &d, &n) != 5) {
       cry(fc(ctx), "%s: subnet must be [+|-]x.x.x.x[/x]", __func__);
       return -1;
     } else if (flag != '+' && flag != '-') {
       cry(fc(ctx), "%s: flag must be + or -: [%s]", __func__, vec.ptr);
       return -1;
     } else if (!isbyte(a)||!isbyte(b)||!isbyte(c)||!isbyte(d)) {
       cry(fc(ctx), "%s: bad ip address: [%s]", __func__, vec.ptr);
       return -1;
     } else if (sscanf(vec.ptr + n, "/%d", &mask) == 0) {
       // Do nothing, no mask specified
     } else if (mask < 0 || mask > 32) {
       cry(fc(ctx), "%s: bad subnet mask: %d [%s]", __func__, n, vec.ptr);
       return -1;
+    }
     acl_subnet = (a << 24) | (b << 16) | (c << 8) | d;
     acl_mask = mask ? 0xffffffffU << (32 - mask) : 0;
     if (acl_subnet == (ntohl(remote_ip) & acl_mask)) {
       allowed = flag;
+    }
+  }
   return allowed == '+';
+}
 static void add_to_set(SOCKET fd, fd_set *set, int *max_fd) {
   FD_SET(fd, set);
   if (fd > (SOCKET) *max_fd) {
     *max_fd = (int) fd;
+  }
+}
 #if !defined(_WIN32)
 static int set_uid_option(struct mg_context *ctx) {
   struct passwd *pw;
   const char *uid = ctx->config[RUN_AS_USER];
   int success = 0;
   if (uid == NULL) {
     success = 1;
   } else {
     if ((pw = getpwnam(uid)) == NULL) {
       cry(fc(ctx), "%s: unknown user [%s]", __func__, uid);
     } else if (setgid(pw->pw_gid) == -1) {
       cry(fc(ctx), "%s: setgid(%s): %s", __func__, uid, strerror(errno));
     } else if (setuid(pw->pw_uid) == -1) {
       cry(fc(ctx), "%s: setuid(%s): %s", __func__, uid, strerror(errno));
     } else {
       success = 1;
+    }
+  }
   return success;
+}
 #endif // !_WIN32
 #if !defined(NO_SSL)
 static pthread_mutex_t *ssl_mutexes;
 // Return OpenSSL error message
 static const char *ssl_error(void) {
   unsigned long err;
   err = ERR_get_error();
   return err == 0 ? "" : ERR_error_string(err, NULL);
+}
 static void ssl_locking_callback(int mode, int mutex_num, const char *file,
                                  int line) {
   line = 0;    // Unused
   file = NULL; // Unused
   if (mode & CRYPTO_LOCK) {
     (void) pthread_mutex_lock(&ssl_mutexes[mutex_num]);
   } else {
     (void) pthread_mutex_unlock(&ssl_mutexes[mutex_num]);
+  }
+}
 static unsigned long ssl_id_callback(void) {
   return (unsigned long) pthread_self();
+}
 #if !defined(NO_SSL_DL)
 static int load_dll(struct mg_context *ctx, const char *dll_name,
                     struct ssl_func *sw) {
   union {void *p; void (*fp)(void);} u;
   void  *dll_handle;
   struct ssl_func *fp;
   if ((dll_handle = dlopen(dll_name, RTLD_LAZY)) == NULL) {
     cry(fc(ctx), "%s: cannot load %s", __func__, dll_name);
     return 0;
+  }
   for (fp = sw; fp->name != NULL; fp++) {
 #ifdef _WIN32
     // GetProcAddress() returns pointer to function
     u.fp = (void (*)(void)) dlsym(dll_handle, fp->name);
 #else
     // dlsym() on UNIX returns void *. ISO C forbids casts of data pointers to
     // function pointers. We need to use a union to make a cast.
     u.p = dlsym(dll_handle, fp->name);
 #endif // _WIN32
     if (u.fp == NULL) {
       cry(fc(ctx), "%s: %s: cannot find %s", __func__, dll_name, fp->name);
       return 0;
     } else {
       fp->ptr = u.fp;
+    }
+  }
   return 1;
+}
 #endif // NO_SSL_DL
 // Dynamically load SSL library. Set up ctx->ssl_ctx pointer.
 static int set_ssl_option(struct mg_context *ctx) {
   struct mg_request_info request_info;
   int i, size;
   const char *pem = ctx->config[SSL_CERTIFICATE];
   const char *chain = ctx->config[SSL_CHAIN_FILE];
 #if !defined(NO_SSL_DL)
   if (!load_dll(ctx, SSL_LIB, ssl_sw) ||
       !load_dll(ctx, CRYPTO_LIB, crypto_sw)) {
     return 0;
+  }
 #endif // NO_SSL_DL
   // Initialize SSL crap
   SSL_library_init();
   SSL_load_error_strings();
   if ((ctx->client_ssl_ctx = SSL_CTX_new(SSLv23_client_method())) == NULL) {
     cry(fc(ctx), "SSL_CTX_new error: %s", ssl_error());
+  }
   if ((ctx->ssl_ctx = SSL_CTX_new(SSLv23_server_method())) == NULL) {
     cry(fc(ctx), "SSL_CTX_new error: %s", ssl_error());
   } else if (ctx->user_callback != NULL) {
     memset(&request_info, 0, sizeof(request_info));
     request_info.user_data = ctx->user_data;
     ctx->user_callback(MG_INIT_SSL, (struct mg_connection *) ctx->ssl_ctx);
+  }
   if (ctx->ssl_ctx != NULL && pem != NULL &&
       SSL_CTX_use_certificate_file(ctx->ssl_ctx, pem, SSL_FILETYPE_PEM) == 0) {
     cry(fc(ctx), "%s: cannot open %s: %s", __func__, pem, ssl_error());
     return 0;
+  }
   if (ctx->ssl_ctx != NULL && pem != NULL &&
       SSL_CTX_use_PrivateKey_file(ctx->ssl_ctx, pem, SSL_FILETYPE_PEM) == 0) {
     cry(fc(ctx), "%s: cannot open %s: %s", __func__, pem, ssl_error());
     return 0;
+  }
   if (ctx->ssl_ctx != NULL && chain != NULL &&
       SSL_CTX_use_certificate_chain_file(ctx->ssl_ctx, chain) == 0) {
     cry(fc(ctx), "%s: cannot open %s: %s", __func__, chain, ssl_error());
     return 0;
+  }
   // Initialize locking callbacks, needed for thread safety.
   // http://www.openssl.org/support/faq.html#PROG1
   size = sizeof(pthread_mutex_t) * CRYPTO_num_locks();
   if ((ssl_mutexes = (pthread_mutex_t *) malloc((size_t)size)) == NULL) {
     cry(fc(ctx), "%s: cannot allocate mutexes: %s", __func__, ssl_error());
     return 0;
+  }
   for (i = 0; i < CRYPTO_num_locks(); i++) {
     pthread_mutex_init(&ssl_mutexes[i], NULL);
+  }
   CRYPTO_set_locking_callback(&ssl_locking_callback);
   CRYPTO_set_id_callback(&ssl_id_callback);
   return 1;
+}
 static void uninitialize_ssl(struct mg_context *ctx) {
   int i;
   if (ctx->ssl_ctx != NULL) {
     CRYPTO_set_locking_callback(NULL);
     for (i = 0; i < CRYPTO_num_locks(); i++) {
       pthread_mutex_destroy(&ssl_mutexes[i]);
+    }
     CRYPTO_set_locking_callback(NULL);
     CRYPTO_set_id_callback(NULL);
+  }
+}
 #endif // !NO_SSL
 static int set_gpass_option(struct mg_context *ctx) {
   struct mgstat mgstat;
   const char *path = ctx->config[GLOBAL_PASSWORDS_FILE];
   return path == NULL || mg_stat(path, &mgstat) == 0;
+}
 static int set_acl_option(struct mg_context *ctx) {
   union usa fake;
   return check_acl(ctx, &fake) != -1;
+}
 static void reset_per_request_attributes(struct mg_connection *conn) {
   conn->path_info = conn->body = conn->next_request = NULL;
   conn->num_bytes_sent = conn->consumed_content = 0;
   conn->content_len = -1;
   conn->request_len = conn->data_len = 0;
   conn->must_close = 0;
+}
 static void close_socket_gracefully(struct mg_connection *conn) {
   char buf[MG_BUF_LEN];
   struct linger linger;
   int n, sock = conn->client.sock;
   // Set linger option to avoid socket hanging out after close. This prevent
   // ephemeral port exhaust problem under high QPS.
   linger.l_onoff = 1;
   linger.l_linger = 1;
   setsockopt(sock, SOL_SOCKET, SO_LINGER, (void *) &linger, sizeof(linger));
   // Send FIN to the client
   (void) shutdown(sock, SHUT_WR);
   set_non_blocking_mode(sock);
   // Read and discard pending incoming data. If we do not do that and close the
   // socket, the data in the send buffer may be discarded. This
   // behaviour is seen on Windows, when client keeps sending data
   // when server decides to close the connection; then when client
   // does recv() it gets no data back.
   do {
     n = pull(NULL, conn, buf, sizeof(buf));
   } while (n > 0);
   // Now we know that our FIN is ACK-ed, safe to close
   (void) closesocket(sock);
+}
 static void close_connection(struct mg_connection *conn) {
   if (conn->ssl) {
     SSL_free(conn->ssl);
     conn->ssl = NULL;
+  }
   if (conn->client.sock != INVALID_SOCKET) {
     close_socket_gracefully(conn);
+  }
+}
 void mg_close_connection(struct mg_connection *conn) {
   close_connection(conn);
   free(conn);
+}
 struct mg_connection *mg_connect(struct mg_context *ctx,
                                  const char *host, int port, int use_ssl) {
   struct mg_connection *newconn = NULL;
   struct sockaddr_in sin;
   struct hostent *he;
   int sock;
   if (ctx->client_ssl_ctx == NULL && use_ssl) {
     cry(fc(ctx), "%s: SSL is not initialized", __func__);
   } else if ((he = gethostbyname(host)) == NULL) {
     cry(fc(ctx), "%s: gethostbyname(%s): %s", __func__, host, strerror(ERRNO));
   } else if ((sock = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
     cry(fc(ctx), "%s: socket: %s", __func__, strerror(ERRNO));
   } else {
     sin.sin_family = AF_INET;
     sin.sin_port = htons((uint16_t) port);
     sin.sin_addr = * (struct in_addr *) he->h_addr_list[0];
     if (connect(sock, (struct sockaddr *) &sin, sizeof(sin)) != 0) {
       cry(fc(ctx), "%s: connect(%s:%d): %s", __func__, host, port,
           strerror(ERRNO));
       closesocket(sock);
     } else if ((newconn = (struct mg_connection *)
                 calloc(1, sizeof(*newconn))) == NULL) {
       cry(fc(ctx), "%s: calloc: %s", __func__, strerror(ERRNO));
       closesocket(sock);
     } else {
       newconn->ctx = ctx;
       newconn->client.sock = sock;
       newconn->client.rsa.sin = sin;
       newconn->client.is_ssl = use_ssl;
       if (use_ssl) {
         sslize(newconn, ctx->client_ssl_ctx, SSL_connect);
+      }
+    }
+  }
   return newconn;
+}
 FILE *mg_fetch(struct mg_context *ctx, const char *url, const char *path,
                char *buf, size_t buf_len, struct mg_request_info *ri) {
   struct mg_connection *newconn;
   int n, req_length, data_length, port;
   char host[1025], proto[10], buf2[MG_BUF_LEN];
   FILE *fp = NULL;
   if (sscanf(url, "%9[htps]://%1024[^:]:%d/%n", proto, host, &port, &n) == 3) {
   } else if (sscanf(url, "%9[htps]://%1024[^/]/%n", proto, host, &n) == 2) {
     port = mg_strcasecmp(proto, "https") == 0 ? 443 : 80;
   } else {
     cry(fc(ctx), "%s: invalid URL: [%s]", __func__, url);
     return NULL;
+  }
   if ((newconn = mg_connect(ctx, host, port,
                             !strcmp(proto, "https"))) == NULL) {
     cry(fc(ctx), "%s: mg_connect(%s): %s", __func__, url, strerror(ERRNO));
   } else {
     mg_printf(newconn, "GET /%s HTTP/1.0\r\nHost: %s\r\n\r\n", url + n, host);
     data_length = 0;
     req_length = read_request(NULL, newconn, buf, buf_len, &data_length);
     if (req_length <= 0) {
       cry(fc(ctx), "%s(%s): invalid HTTP reply", __func__, url);
     } else if (parse_http_response(buf, req_length, ri) <= 0) {
       cry(fc(ctx), "%s(%s): cannot parse HTTP headers", __func__, url);
     } else if ((fp = fopen(path, "w+b")) == NULL) {
       cry(fc(ctx), "%s: fopen(%s): %s", __func__, path, strerror(ERRNO));
     } else {
       // Write chunk of data that may be in the user's buffer
       data_length -= req_length;
       if (data_length > 0 &&
         fwrite(buf + req_length, 1, data_length, fp) != (size_t) data_length) {
         cry(fc(ctx), "%s: fwrite(%s): %s", __func__, path, strerror(ERRNO));
         fclose(fp);
         fp = NULL;
+      }
       // Read the rest of the response and write it to the file. Do not use
       // mg_read() cause we didn't set newconn->content_len properly.
       while (fp && (data_length = pull(0, newconn, buf2, sizeof(buf2))) > 0) {
         if (fwrite(buf2, 1, data_length, fp) != (size_t) data_length) {
           cry(fc(ctx), "%s: fwrite(%s): %s", __func__, path, strerror(ERRNO));
           fclose(fp);
           fp = NULL;
           break;
+        }
+      }
+    }
     mg_close_connection(newconn);
+  }
   return fp;
+}
 static int is_valid_uri(const char *uri) {
   // Conform to http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html#sec5.1.2
   // URI can be an asterisk (*) or should start with slash.
   return uri[0] == '/' || (uri[0] == '*' && uri[1] == '\0');
+}
 static void process_new_connection(struct mg_connection *conn) {
   struct mg_request_info *ri = &conn->request_info;
   int keep_alive_enabled, buffered_len;
   const char *cl;
   keep_alive_enabled = !strcmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes");
   do {
     reset_per_request_attributes(conn);
     conn->request_len = read_request(NULL, conn, conn->buf, conn->buf_size,
                                      &conn->data_len);
     assert(conn->request_len < 0 || conn->data_len >= conn->request_len);
     if (conn->request_len == 0 && conn->data_len == conn->buf_size) {
       send_http_error(conn, 413, "Request Too Large", "%s", "");
       return;
     } if (conn->request_len <= 0) {
       return;  // Remote end closed the connection
+    }
     conn->body = conn->next_request = conn->buf + conn->request_len;
     if (parse_http_request(conn->buf, conn->buf_size, ri) <= 0 ||
         !is_valid_uri(ri->uri)) {
       // Do not put garbage in the access log, just send it back to the client
       send_http_error(conn, 400, "Bad Request",
           "Cannot parse HTTP request: [%.*s]", conn->data_len, conn->buf);
       conn->must_close = 1;
     } else if (strcmp(ri->http_version, "1.0") &&
                strcmp(ri->http_version, "1.1")) {
       // Request seems valid, but HTTP version is strange
       send_http_error(conn, 505, "HTTP version not supported", "%s", "");
       log_access(conn);
     } else {
       // Request is valid, handle it
       cl = get_header(ri, "Content-Length");
       conn->content_len = cl == NULL ? -1 : strtoll(cl, NULL, 10);
       // Set pointer to the next buffered request
       buffered_len = conn->data_len - conn->request_len;
       assert(buffered_len >= 0);
       if (conn->content_len <= 0) {
       } else if (conn->content_len < (int64_t) buffered_len) {
         conn->next_request += conn->content_len;
       } else {
         conn->next_request += buffered_len;
+      }
       conn->birth_time = time(NULL);
       handle_request(conn);
       call_user(conn, MG_REQUEST_COMPLETE);
       log_access(conn);
+    }
     if (ri->remote_user != NULL) {
       free((void *) ri->remote_user);
+    }
     // Discard all buffered data for this request
     assert(conn->next_request >= conn->buf);
     assert(conn->data_len >= conn->next_request - conn->buf);
     conn->data_len -= conn->next_request - conn->buf;
     memmove(conn->buf, conn->next_request, (size_t) conn->data_len);
   } while (conn->ctx->stop_flag == 0 &&
            keep_alive_enabled &&
            should_keep_alive(conn));
+}
 // Worker threads take accepted socket from the queue
 static int consume_socket(struct mg_context *ctx, struct socket *sp) {
   (void) pthread_mutex_lock(&ctx->mutex);
   DEBUG_TRACE(("going idle"));
   // If the queue is empty, wait. We're idle at this point.
   while (ctx->sq_head == ctx->sq_tail && ctx->stop_flag == 0) {
     pthread_cond_wait(&ctx->sq_full, &ctx->mutex);
+  }
   // If we're stopping, sq_head may be equal to sq_tail.
   if (ctx->sq_head > ctx->sq_tail) {
     // Copy socket from the queue and increment tail
     *sp = ctx->queue[ctx->sq_tail % ARRAY_SIZE(ctx->queue)];
     ctx->sq_tail++;
     DEBUG_TRACE(("grabbed socket %d, going busy", sp->sock));
     // Wrap pointers if needed
     while (ctx->sq_tail > (int) ARRAY_SIZE(ctx->queue)) {
       ctx->sq_tail -= ARRAY_SIZE(ctx->queue);
       ctx->sq_head -= ARRAY_SIZE(ctx->queue);
+    }
+  }
   (void) pthread_cond_signal(&ctx->sq_empty);
   (void) pthread_mutex_unlock(&ctx->mutex);
   return !ctx->stop_flag;
+}
 static void worker_thread(struct mg_context *ctx) {
   struct mg_connection *conn;
   int buf_size = atoi(ctx->config[MAX_REQUEST_SIZE]);
   conn = (struct mg_connection *) calloc(1, sizeof(*conn) + buf_size);
   if (conn == NULL) {
     cry(fc(ctx), "%s", "Cannot create new connection struct, OOM");
   } else {
     conn->buf_size = buf_size;
     conn->buf = (char *) (conn + 1);
     // Call consume_socket() even when ctx->stop_flag > 0, to let it signal
     // sq_empty condvar to wake up the master waiting in produce_socket()
     while (consume_socket(ctx, &conn->client)) {
       conn->birth_time = time(NULL);
       conn->ctx = ctx;
       // Fill in IP, port info early so even if SSL setup below fails,
       // error handler would have the corresponding info.
       // Thanks to Johannes Winkelmann for the patch.
       // TODO(lsm): Fix IPv6 case
       conn->request_info.remote_port = ntohs(conn->client.rsa.sin.sin_port);
       memcpy(&conn->request_info.remote_ip,
              &conn->client.rsa.sin.sin_addr.s_addr, 4);
       conn->request_info.remote_ip = ntohl(conn->request_info.remote_ip);
       conn->request_info.is_ssl = conn->client.is_ssl;
       if (!conn->client.is_ssl ||
           (conn->client.is_ssl &&
            sslize(conn, conn->ctx->ssl_ctx, SSL_accept))) {
         process_new_connection(conn);
+      }
       close_connection(conn);
+    }
     free(conn);
+  }
   // Signal master that we're done with connection and exiting
   (void) pthread_mutex_lock(&ctx->mutex);
   ctx->num_threads--;
   (void) pthread_cond_signal(&ctx->cond);
   assert(ctx->num_threads >= 0);
   (void) pthread_mutex_unlock(&ctx->mutex);
   DEBUG_TRACE(("exiting"));
+}
 // Master thread adds accepted socket to a queue
 static void produce_socket(struct mg_context *ctx, const struct socket *sp) {
   (void) pthread_mutex_lock(&ctx->mutex);
   // If the queue is full, wait
   while (ctx->stop_flag == 0 &&
          ctx->sq_head - ctx->sq_tail >= (int) ARRAY_SIZE(ctx->queue)) {
     (void) pthread_cond_wait(&ctx->sq_empty, &ctx->mutex);
+  }
   if (ctx->sq_head - ctx->sq_tail < (int) ARRAY_SIZE(ctx->queue)) {
     // Copy socket to the queue and increment head
     ctx->queue[ctx->sq_head % ARRAY_SIZE(ctx->queue)] = *sp;
     ctx->sq_head++;
     DEBUG_TRACE(("queued socket %d", sp->sock));
+  }
   (void) pthread_cond_signal(&ctx->sq_full);
   (void) pthread_mutex_unlock(&ctx->mutex);
+}
 static void accept_new_connection(const struct socket *listener,
                                   struct mg_context *ctx) {
   struct socket accepted;
   char src_addr[20];
   socklen_t len;
   int allowed;
   len = sizeof(accepted.rsa);
   accepted.lsa = listener->lsa;
   accepted.sock = accept(listener->sock, &accepted.rsa.sa, &len);
   if (accepted.sock != INVALID_SOCKET) {
     allowed = check_acl(ctx, &accepted.rsa);
     if (allowed) {
       // Put accepted socket structure into the queue
       DEBUG_TRACE(("accepted socket %d", accepted.sock));
       accepted.is_ssl = listener->is_ssl;
       produce_socket(ctx, &accepted);
     } else {
       sockaddr_to_string(src_addr, sizeof(src_addr), &accepted.rsa);
       cry(fc(ctx), "%s: %s is not allowed to connect", __func__, src_addr);
       (void) closesocket(accepted.sock);
+    }
+  }
+}
 static void master_thread(struct mg_context *ctx) {
   fd_set read_set;
   struct timeval tv;
   struct socket *sp;
   int max_fd;
   // Increase priority of the master thread
 #if defined(_WIN32)
   SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_ABOVE_NORMAL);
 #endif
 #if defined(ISSUE_317)
   struct sched_param sched_param;
   sched_param.sched_priority = sched_get_priority_max(SCHED_RR);
   pthread_setschedparam(pthread_self(), SCHED_RR, &sched_param);
 #endif
   while (ctx->stop_flag == 0) {
     FD_ZERO(&read_set);
     max_fd = -1;
     // Add listening sockets to the read set
     for (sp = ctx->listening_sockets; sp != NULL; sp = sp->next) {
       add_to_set(sp->sock, &read_set, &max_fd);
+    }
     tv.tv_sec = 0;
     tv.tv_usec = 200 * 1000;
     if (select(max_fd + 1, &read_set, NULL, NULL, &tv) < 0) {
 #ifdef _WIN32
       // On windows, if read_set and write_set are empty,
       // select() returns "Invalid parameter" error
       // (at least on my Windows XP Pro). So in this case, we sleep here.
       mg_sleep(1000);
 #endif // _WIN32
     } else {
       for (sp = ctx->listening_sockets; sp != NULL; sp = sp->next) {
         if (ctx->stop_flag == 0 && FD_ISSET(sp->sock, &read_set)) {
           accept_new_connection(sp, ctx);
+        }
+      }
+    }
+  }
   DEBUG_TRACE(("stopping workers"));
   // Stop signal received: somebody called mg_stop. Quit.
   close_all_listening_sockets(ctx);
   // Wakeup workers that are waiting for connections to handle.
   pthread_cond_broadcast(&ctx->sq_full);
   // Wait until all threads finish
   (void) pthread_mutex_lock(&ctx->mutex);
   while (ctx->num_threads > 0) {
     (void) pthread_cond_wait(&ctx->cond, &ctx->mutex);
+  }
   (void) pthread_mutex_unlock(&ctx->mutex);
   // All threads exited, no sync is needed. Destroy mutex and condvars
   (void) pthread_mutex_destroy(&ctx->mutex);
   (void) pthread_cond_destroy(&ctx->cond);
   (void) pthread_cond_destroy(&ctx->sq_empty);
   (void) pthread_cond_destroy(&ctx->sq_full);
 #if !defined(NO_SSL)
   uninitialize_ssl(ctx);
 #endif
   DEBUG_TRACE(("exiting"));
   // Signal mg_stop() that we're done.
   // WARNING: This must be the very last thing this
   // thread does, as ctx becomes invalid after this line.
   ctx->stop_flag = 2;
+}
 static void free_context(struct mg_context *ctx) {
   int i;
   // Deallocate config parameters
   for (i = 0; i < NUM_OPTIONS; i++) {
     if (ctx->config[i] != NULL)
       free(ctx->config[i]);
+  }
   // Deallocate SSL context
   if (ctx->ssl_ctx != NULL) {
     SSL_CTX_free(ctx->ssl_ctx);
+  }
   if (ctx->client_ssl_ctx != NULL) {
     SSL_CTX_free(ctx->client_ssl_ctx);
+  }
 #ifndef NO_SSL
   if (ssl_mutexes != NULL) {
     free(ssl_mutexes);
+  }
 #endif // !NO_SSL
   // Deallocate context itself
   free(ctx);
+}
 void mg_stop(struct mg_context *ctx) {
   ctx->stop_flag = 1;
   // Wait until mg_fini() stops
   while (ctx->stop_flag != 2) {
     (void) mg_sleep(10);
+  }
   free_context(ctx);
 #if defined(_WIN32) && !defined(__SYMBIAN32__)
   (void) WSACleanup();
 #endif // _WIN32
+}
 struct mg_context *mg_start(mg_callback_t user_callback, void *user_data,
                             const char **options) {
   struct mg_context *ctx;
   const char *name, *value, *default_value;
   int i;
 #if defined(_WIN32) && !defined(__SYMBIAN32__)
   WSADATA data;
   WSAStartup(MAKEWORD(2,2), &data);
   InitializeCriticalSection(&global_log_file_lock);
 #endif // _WIN32
   // Allocate context and initialize reasonable general case defaults.
   // TODO(lsm): do proper error handling here.
   if ((ctx = (struct mg_context *) calloc(1, sizeof(*ctx))) == NULL) {
     return NULL;
+  }
   ctx->user_callback = user_callback;
   ctx->user_data = user_data;
   while (options && (name = *options++) != NULL) {
     if ((i = get_option_index(name)) == -1) {
       cry(fc(ctx), "Invalid option: %s", name);
       free_context(ctx);
       return NULL;
     } else if ((value = *options++) == NULL) {
       cry(fc(ctx), "%s: option value cannot be NULL", name);
       free_context(ctx);
       return NULL;
+    }
     if (ctx->config[i] != NULL) {
       cry(fc(ctx), "warning: %s: duplicate option", name);
+    }
     ctx->config[i] = mg_strdup(value);
     DEBUG_TRACE(("[%s] -> [%s]", name, value));
+  }
   // Set default value if needed
   for (i = 0; config_options[i * ENTRIES_PER_CONFIG_OPTION] != NULL; i++) {
     default_value = config_options[i * ENTRIES_PER_CONFIG_OPTION + 2];
     if (ctx->config[i] == NULL && default_value != NULL) {
       ctx->config[i] = mg_strdup(default_value);
       DEBUG_TRACE(("Setting default: [%s] -> [%s]",
                    config_options[i * ENTRIES_PER_CONFIG_OPTION + 1],
                    default_value));
+    }
+  }
   // NOTE(lsm): order is important here. SSL certificates must
   // be initialized before listening ports. UID must be set last.
   if (!set_gpass_option(ctx) ||
 #if !defined(NO_SSL)
       !set_ssl_option(ctx) ||
 #endif
       !set_ports_option(ctx) ||
 #if !defined(_WIN32)
       !set_uid_option(ctx) ||
 #endif
       !set_acl_option(ctx)) {
     free_context(ctx);
     return NULL;
+  }
 #if !defined(_WIN32) && !defined(__SYMBIAN32__)
   // Ignore SIGPIPE signal, so if browser cancels the request, it
   // won't kill the whole process.
   (void) signal(SIGPIPE, SIG_IGN);
   // Also ignoring SIGCHLD to let the OS to reap zombies properly.
   (void) signal(SIGCHLD, SIG_IGN);
 #endif // !_WIN32
   (void) pthread_mutex_init(&ctx->mutex, NULL);
   (void) pthread_cond_init(&ctx->cond, NULL);
   (void) pthread_cond_init(&ctx->sq_empty, NULL);
   (void) pthread_cond_init(&ctx->sq_full, NULL);
   // Start master (listening) thread
   mg_start_thread((mg_thread_func_t) master_thread, ctx);
   // Start worker threads
   for (i = 0; i < atoi(ctx->config[NUM_THREADS]); i++) {
     if (mg_start_thread((mg_thread_func_t) worker_thread, ctx) != 0) {
       cry(fc(ctx), "Cannot start worker thread: %d", ERRNO);
     } else {
       ctx->num_threads++;
+    }
+  }
   return ctx;
+}

spectrum_manager/src/mongoose.h

➞

Show inline comments

@@ new file 100644 @@
 // Copyright (c) 2004-2012 Sergey Lyubka
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
 //
 // The above copyright notice and this permission notice shall be included in
 // all copies or substantial portions of the Software.
 //
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 #ifndef MONGOOSE_HEADER_INCLUDED
 #define  MONGOOSE_HEADER_INCLUDED
 #include <stdio.h>
 #include <stddef.h>
 #ifdef __cplusplus
 extern "C" {
 #endif // __cplusplus
 struct mg_context;     // Handle for the HTTP service itself
 struct mg_connection;  // Handle for the individual connection
 // This structure contains information about the HTTP request.
 struct mg_request_info {
   void *user_data;       // User-defined pointer passed to mg_start()
   char *request_method;  // "GET", "POST", etc
   char *uri;             // URL-decoded URI
   char *http_version;    // E.g. "1.0", "1.1"
   char *query_string;    // URL part after '?' (not including '?') or NULL
   char *remote_user;     // Authenticated user, or NULL if no auth used
   char *log_message;     // Mongoose error log message, MG_EVENT_LOG only
   long remote_ip;        // Client's IP address
   int remote_port;       // Client's port
   int status_code;       // HTTP reply status code, e.g. 200
   int is_ssl;            // 1 if SSL-ed, 0 if not
   int num_headers;       // Number of headers
   struct mg_header {
     char *name;          // HTTP header name
     char *value;         // HTTP header value
   } http_headers[64];    // Maximum 64 headers
 };
 // Various events on which user-defined function is called by Mongoose.
 enum mg_event {
   MG_NEW_REQUEST,       // New HTTP request has arrived from the client
   MG_REQUEST_COMPLETE,  // Mongoose has finished handling the request
   MG_HTTP_ERROR,        // HTTP error must be returned to the client
   MG_EVENT_LOG,         // Mongoose logs an event, request_info.log_message
   MG_INIT_SSL           // Mongoose initializes SSL. Instead of mg_connection *,
                         // SSL context is passed to the callback function.
 };
 // Prototype for the user-defined function. Mongoose calls this function
 // on every MG_* event.
 //
 // Parameters:
 //   event: which event has been triggered.
 //   conn: opaque connection handler. Could be used to read, write data to the
 //         client, etc. See functions below that have "mg_connection *" arg.
 //
 // Return:
 //   If handler returns non-NULL, that means that handler has processed the
 //   request by sending appropriate HTTP reply to the client. Mongoose treats
 //   the request as served.
 //   If handler returns NULL, that means that handler has not processed
 //   the request. Handler must not send any data to the client in this case.
 //   Mongoose proceeds with request handling as if nothing happened.
 typedef void * (*mg_callback_t)(enum mg_event event,
                                 struct mg_connection *conn);
 // Start web server.
 //
 // Parameters:
 //   callback: user defined event handling function or NULL.
 //   options: NULL terminated list of option_name, option_value pairs that
 //            specify Mongoose configuration parameters.
 //
 // Side-effects: on UNIX, ignores SIGCHLD and SIGPIPE signals. If custom
 //    processing is required for these, signal handlers must be set up
 //    after calling mg_start().
 //
 //
 // Example:
 //   const char *options[] = {
 //     "document_root", "/var/www",
 //     "listening_ports", "80,443s",
 //     NULL
 //   };
 //   struct mg_context *ctx = mg_start(&my_func, NULL, options);
 //
 // Please refer to http://code.google.com/p/mongoose/wiki/MongooseManual
 // for the list of valid option and their possible values.
 //
 // Return:
 //   web server context, or NULL on error.
 struct mg_context *mg_start(mg_callback_t callback, void *user_data,
                             const char **options);
 // Stop the web server.
 //
 // Must be called last, when an application wants to stop the web server and
 // release all associated resources. This function blocks until all Mongoose
 // threads are stopped. Context pointer becomes invalid.
 void mg_stop(struct mg_context *);
 // Get the value of particular configuration parameter.
 // The value returned is read-only. Mongoose does not allow changing
 // configuration at run time.
 // If given parameter name is not valid, NULL is returned. For valid
 // names, return value is guaranteed to be non-NULL. If parameter is not
 // set, zero-length string is returned.
 const char *mg_get_option(const struct mg_context *ctx, const char *name);
 // Return array of strings that represent valid configuration options.
 // For each option, a short name, long name, and default value is returned.
 // Array is NULL terminated.
 const char **mg_get_valid_option_names(void);
 // Add, edit or delete the entry in the passwords file.
 //
 // This function allows an application to manipulate .htpasswd files on the
 // fly by adding, deleting and changing user records. This is one of the
 // several ways of implementing authentication on the server side. For another,
 // cookie-based way please refer to the examples/chat.c in the source tree.
 //
 // If password is not NULL, entry is added (or modified if already exists).
 // If password is NULL, entry is deleted.
 //
 // Return:
 //   1 on success, 0 on error.
 int mg_modify_passwords_file(const char *passwords_file_name,
                              const char *domain,
                              const char *user,
                              const char *password);
 // Return mg_request_info structure associated with the request.
 // Always succeeds.
 const struct mg_request_info *mg_get_request_info(const struct mg_connection *);
 // Send data to the client.
 // Return:
 //  0   when the connection has been closed
 //  -1  on error
 //  number of bytes written on success
 int mg_write(struct mg_connection *, const void *buf, size_t len);
 // Send data to the browser using printf() semantics.
 //
 // Works exactly like mg_write(), but allows to do message formatting.
 // Below are the macros for enabling compiler-specific checks for
 // printf-like arguments.
 #undef PRINTF_FORMAT_STRING
 #if _MSC_VER >= 1400
 #include <sal.h>
 #if _MSC_VER > 1400
 #define PRINTF_FORMAT_STRING(s) _Printf_format_string_ s
 #else
 #define PRINTF_FORMAT_STRING(s) __format_string s
 #endif
 #else
 #define PRINTF_FORMAT_STRING(s) s
 #endif
 #ifdef __GNUC__
 #define PRINTF_ARGS(x, y) __attribute__((format(printf, x, y)))
 #else
 #define PRINTF_ARGS(x, y)
 #endif
 int mg_printf(struct mg_connection *,
               PRINTF_FORMAT_STRING(const char *fmt), ...) PRINTF_ARGS(2, 3);
 // Send contents of the entire file together with HTTP headers.
 void mg_send_file(struct mg_connection *conn, const char *path);
 // Read data from the remote end, return number of bytes read.
 int mg_read(struct mg_connection *, void *buf, size_t len);
 // Get the value of particular HTTP header.
 //
 // This is a helper function. It traverses request_info->http_headers array,
 // and if the header is present in the array, returns its value. If it is
 // not present, NULL is returned.
 const char *mg_get_header(const struct mg_connection *, const char *name);
 // Get a value of particular form variable.
 //
 // Parameters:
 //   data: pointer to form-uri-encoded buffer. This could be either POST data,
 //         or request_info.query_string.
 //   data_len: length of the encoded data.
 //   var_name: variable name to decode from the buffer
 //   buf: destination buffer for the decoded variable
 //   buf_len: length of the destination buffer
 //
 // Return:
 //   On success, length of the decoded variable.
 //   On error:
 //      -1 (variable not found, or destination buffer is too small).
 //      -2 (destination buffer is NULL or zero length).
 //
 // Destination buffer is guaranteed to be '\0' - terminated if it is not
 // NULL or zero length. In case of failure, dst[0] == '\0'.
 int mg_get_var(const char *data, size_t data_len,
                const char *var_name, char *buf, size_t buf_len);
 // Fetch value of certain cookie variable into the destination buffer.
 //
 // Destination buffer is guaranteed to be '\0' - terminated. In case of
 // failure, dst[0] == '\0'. Note that RFC allows many occurrences of the same
 // parameter. This function returns only first occurrence.
 //
 // Return:
 //   On success, value length.
 //   On error, -1 (either "Cookie:" header is not present at all, or the
 //   requested parameter is not found, or destination buffer is too small
 //   to hold the value).
 int mg_get_cookie(const struct mg_connection *,
                   const char *cookie_name, char *buf, size_t buf_len);
 // Connect to the remote web server.
 // Return:
 //   On success, valid pointer to the new connection
 //   On error, NULL
 struct mg_connection *mg_connect(struct mg_context *ctx,
                                  const char *host, int port, int use_ssl);
 // Close the connection opened by mg_connect().
 void mg_close_connection(struct mg_connection *conn);
 // Download given URL to a given file.
 //   url: URL to download
 //   path: file name where to save the data
 //   request_info: pointer to a structure that will hold parsed reply headers
 //   buf, bul_len: a buffer for the reply headers
 // Return:
 //   On error, NULL
 //   On success, opened file stream to the downloaded contents. The stream
 //   is positioned to the end of the file. It is the user's responsibility
 //   to fclose() the opened file stream.
 FILE *mg_fetch(struct mg_context *ctx, const char *url, const char *path,
                char *buf, size_t buf_len, struct mg_request_info *request_info);
 // Convenience function -- create detached thread.
 // Return: 0 on success, non-0 on error.
 typedef void * (*mg_thread_func_t)(void *);
 int mg_start_thread(mg_thread_func_t f, void *p);
 // Return builtin mime type for the given file name.
 // For unrecognized extensions, "text/plain" is returned.
 const char *mg_get_builtin_mime_type(const char *file_name);
 // Return Mongoose version.
 const char *mg_version(void);
 // MD5 hash given strings.
 // Buffer 'buf' must be 33 bytes long. Varargs is a NULL terminated list of
 // ASCIIz strings. When function returns, buf will contain human-readable
 // MD5 hash. Example:
 //   char buf[33];
 //   mg_md5(buf, "aa", "bb", NULL);
 void mg_md5(char buf[33], ...);
 #ifdef __cplusplus
+}
 #endif // __cplusplus
 #endif // MONGOOSE_HEADER_INCLUDED

spectrum_manager/src/server.cpp

➞

Show inline comments

@@ new file 100644 @@
 #include "server.h"
 #include "methods.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <assert.h>
 #include <string.h>
 #include <time.h>
 #include <stdarg.h>
 #include <pthread.h>
 #define SESSION_TTL 120
 static std::string get_header() {
 return "\
 <!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\
   \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"> \
 <html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"en\" dir=\"ltr\"> \
   <head>\
     <title>Spectrum 2 web interface</title>\
     <meta http-equiv=\"Content-Type\" content=\"text/html;charset=utf-8\"/>\
   <style type=\"text/css\">\
 body{ background-color: #F9F9F9; color: #444444; font: normal normal 14px \"Helvetica\", \"Arial\", Sans-Serif; }\
+\
 pre, kbd, var, samp, tt{ font-family: \"Courier\", Monospace; }\
+\
 pre { font-size: 12px; }\
+\
 h1, h2, h3, h4, h5, h6, pre{ color: #094776; }\
+\
 h1{ font-size: 28px; }\
+\
 h2{ font-size: 24px; font-weight: normal; }\
+\
 h1, h2, h3, h4, h5, h6{ margin-bottom: 20px; }\
+\
 h2, h3{ border-bottom: 2px solid #EEEEEE; padding: 0 0 3px; }	\
+\
 h3{ border-color: #E5E5E5; border-width: 1px; }\
+\
 h4{ font-size: 18px; }\
+\
 	h1 a, h2 a{ font-weight: normal; }\
+\
 	h1 a, h2 a, h3 a{ text-decoration: none; }\
+\
 h3, h5, h6{ font-size: 18px; }\
+\
 	h4, h5, h6{ font-size: 14px; }\
+\
 p, dl, ul, ol{ margin: 20px 0; }\
+\
 	p, dl, ul, ol, h3, h4, h5, h6{ margin-left: 20px; }\
+\
 	li > ul,\
 	li > ol{ margin: 0; margin-left: 40px; }\
+\
 	dl > dd{ margin-left: 20px; }\
+	\
 	li > p { margin: 0; }\
+\
 p, li, dd, dt, pre{ line-height: 1.5; }\
+\
 table {\
 	border-collapse: collapse;\
     margin-bottom: 20px;\
 	margin-left:20px;\
 	}\
+\
 th {\
 	padding: 0 0.5em;\
 	text-align: center;\
 	}\
+\
 th {\
 	border: 1px solid #FB7A31;\
 	background: #FFC;\
 	}\
+\
 td {\
 	border-bottom: 1px solid #CCC;\
 	border-right: 1px solid #CCC;\
 	border-left: 1px solid #CCC;\
 	padding: 0 0.5em;\
 	}\
+\
+\
 a:link,\
 a:visited{ color: #1A5B8D; }\
+\
 a:hover,\
 a:active{ color: #742CAC; }\
+\
 a.headerlink{ visibility: hidden; }\
+\
 	:hover > a.headerlink { visibility: visible; }\
+\
 a img{ \
 	border: 0;\
 	outline: 0;\
 }\
+\
 img{ display: block; max-width: 100%; }\
+\
 code {\
 	border: 1px solid #FB7A31;\
 	background: #FFC;\
 }\
+\
 pre {\
  white-space: pre-wrap;\
  white-space: -moz-pre-wrap;\
  white-space: -o-pre-wrap;\
 border: 1px solid #FB7A31;\
 background: #FFC;\
 padding:5px;\
 padding-left: 15px;\
 }\
+\
   </style>\
   </head><body><h1>Spectrum 2 web interface</h1>";
+}
 static void get_qsvar(const struct mg_request_info *request_info,
                       const char *name, char *dst, size_t dst_len) {
   const char *qs = request_info->query_string;
   mg_get_var(qs, strlen(qs == NULL ? "" : qs), name, dst, dst_len);
+}
 static void my_strlcpy(char *dst, const char *src, size_t len) {
   strncpy(dst, src, len);
   dst[len - 1] = '\0';
+}
 // Generate session ID. buf must be 33 bytes in size.
 // Note that it is easy to steal session cookies by sniffing traffic.
 // This is why all communication must be SSL-ed.
 static void generate_session_id(char *buf, const char *random,
                                 const char *user) {
   mg_md5(buf, random, user, NULL);
+}
 Server::Server(ManagerConfig *config) {
 	srand((unsigned) time(0));
 	m_config = config;
+}
 Server::~Server() {
 	mg_stop(ctx);
+}
 static void *_event_handler(enum mg_event event, struct mg_connection *conn) {
 	const struct mg_request_info *request_info = mg_get_request_info(conn);
 	return static_cast<Server *>(request_info->user_data)->event_handler(event, conn);
+}
 bool Server::start(int port, const std::string &user, const std::string &password) {
 	m_user = user;
 	m_password = password;
 	const char *options[] = {
 		"listening_ports", boost::lexical_cast<std::string>(port).c_str(),
 		"num_threads", "1",
 		NULL
 	};
 	// Setup and start Mongoose
 	if ((ctx = mg_start(&_event_handler, this, options)) == NULL) {
 		return false;
+	}
 	return true;
+}
 bool Server::check_password(const char *user, const char *password) {
 	return (m_user == user && m_password == password);
+}
 // Allocate new session object
 Server::session *Server::new_session(const char *user) {
 	Server::session *session = new Server::session;
 	my_strlcpy(session->user, user, sizeof(session->user));
 	snprintf(session->random, sizeof(session->random), "%d", rand());
 	generate_session_id(session->session_id, session->random, session->user);
 	session->expire = time(0) + SESSION_TTL;
 	sessions[session->session_id] = session;
 	return session;
+}
 // Get session object for the connection. Caller must hold the lock.
 Server::session *Server::get_session(const struct mg_connection *conn) {
 	time_t now = time(NULL);
 	char session_id[33];
 	mg_get_cookie(conn, "session", session_id, sizeof(session_id));
 	if (sessions.find(session_id) == sessions.end()) {
 		return NULL;
+	}
 	if (sessions[session_id]->expire != 0 && sessions[session_id]->expire > now) {
 		return sessions[session_id];
+	}
 	return NULL;
+}
 void Server::authorize(struct mg_connection *conn, const struct mg_request_info *request_info) {
 	char user[255], password[255];
 	Server::session *session;
 	// Fetch user name and password.
 	get_qsvar(request_info, "user", user, sizeof(user));
 	get_qsvar(request_info, "password", password, sizeof(password));
 	if (check_password(user, password) && (session = new_session(user)) != NULL) {
 		std::cout << "User authorized\n";
 		// Authentication success:
 		//   1. create new session
 		//   2. set session ID token in the cookie
 		//   3. remove original_url from the cookie - not needed anymore
 		//   4. redirect client back to the original URL
 		//
 		// The most secure way is to stay HTTPS all the time. However, just to
 		// show the technique, we redirect to HTTP after the successful
 		// authentication. The danger of doing this is that session cookie can
 		// be stolen and an attacker may impersonate the user.
 		// Secure application must use HTTPS all the time.
 		mg_printf(conn, "HTTP/1.1 302 Found\r\n"
 			"Set-Cookie: session=%s; max-age=3600; http-only\r\n"  // Session ID
 			"Set-Cookie: user=%s\r\n"  // Set user, needed by Javascript code
 			"Set-Cookie: original_url=/; max-age=0\r\n"  // Delete original_url
 			"Location: /\r\n\r\n",
 			session->session_id, session->user);
 	} else {
 		// Authentication failure, redirect to login.
 		redirect_to(conn, request_info, "/login");
+	}
+}
 bool Server::is_authorized(const struct mg_connection *conn, const struct mg_request_info *request_info) {
 	Server::session *session;
 	char valid_id[33];
 	bool authorized = false;
 	// Always authorize accesses to login page and to authorize URI
 	if (!strcmp(request_info->uri, "/login") ||
 		!strcmp(request_info->uri, "/authorize")) {
 		return true;
+	}
 // 	pthread_rwlock_rdlock(&rwlock);
 	if ((session = get_session(conn)) != NULL) {
 		generate_session_id(valid_id, session->random, session->user);
 		if (strcmp(valid_id, session->session_id) == 0) {
 		session->expire = time(0) + SESSION_TTL;
 		authorized = true;
+		}
+	}
 // 	pthread_rwlock_unlock(&rwlock);
 	return authorized;
+}
 void Server::redirect_to(struct mg_connection *conn, const struct mg_request_info *request_info, const char *where) {
 	mg_printf(conn, "HTTP/1.1 302 Found\r\n"
 		"Set-Cookie: original_url=%s\r\n"
 		"Location: %s\r\n\r\n",
 		request_info->uri, where);
+}
 void Server::print_html(struct mg_connection *conn, const struct mg_request_info *request_info, const std::string &html) {
 	mg_printf(conn,
 			"HTTP/1.1 200 OK\r\n"
 			"Content-Type: text/html\r\n"
 			"Content-Length: %d\r\n"        // Always set Content-Length
 			"\r\n"
 			"%s",
 			(int) html.size(), html.c_str());
+}
 void Server::serve_login(struct mg_connection *conn, const struct mg_request_info *request_info) {
 	std::string html= "\
 <!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\
   \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"> \
 <html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"en\" dir=\"ltr\"> \
   <head>\
     <title>Spectrum 2 web interface</title>\
     <meta http-equiv=\"Content-Type\" content=\"text/html;charset=utf-8\"/>\
   </head>\
   <body>\
     <center>\
       <h2>Spectrum 2 web interface login</h2>\
       <br/>\
       <form action=\"/authorize\">\
         Username: <input type=\"text\" name=\"user\"></input><br/>\
         Password: <input type=\"text\" name=\"password\"></input><br/>\
         <input type=\"submit\" value=\"Login\"></input>\
       </form>\
     </center>\
   </body>\
 </html>";
 	print_html(conn, request_info, html);
+}
 void Server::serve_root(struct mg_connection *conn, const struct mg_request_info *request_info) {
 	std::vector<std::string> list = show_list(m_config, false);
 	std::string html= get_header() + "<h2>List of instances</h2><table><tr><th>JID<th>Status</th><th>Command</th></tr>";
 	BOOST_FOREACH(std::string &instance, list) {
 		html += "<tr>";
 		html += "<td>" + instance + "</td>";
 		Swift::SimpleEventLoop eventLoop;
 		Swift::BoostNetworkFactories networkFactories(&eventLoop);
 		ask_local_server(m_config, networkFactories, instance, "status");
 		eventLoop.runUntilEvents();
 		while(get_response().empty()) {
 			eventLoop.runUntilEvents();
+		}
 		html += "<td>" + get_response() + "</td>";
 		if (get_response().find("Running") == 0) {
 			html += "<td><a href=\"/stop?jid=" + instance + "\">Stop</a></td>";
+		}
 		else {
 			html += "<td><a href=\"/start?jid=" + instance + "\">Start</a></td>";
+		}
 		html += "</tr>";
+	}
 	html += "</table></body></html>";
 	print_html(conn, request_info, html);
+}
 void *Server::event_handler(enum mg_event event, struct mg_connection *conn) {
 	const struct mg_request_info *request_info = mg_get_request_info(conn);
 	void *processed = (void *) 0x1;
 	if (event == MG_NEW_REQUEST) {
 		if (!is_authorized(conn, request_info)) {
 			redirect_to(conn, request_info, "/login");
 		} else if (strcmp(request_info->uri, "/authorize") == 0) {
 			authorize(conn, request_info);
 		} else if (strcmp(request_info->uri, "/login") == 0) {
 			serve_login(conn, request_info);
 		} else if (strcmp(request_info->uri, "/") == 0) {
 			serve_root(conn, request_info);
 		} else {
 			// No suitable handler found, mark as not processed. Mongoose will
 			// try to serve the request.
 			processed = NULL;
+		}
 	} else {
 		processed = NULL;
+	}
 	return processed;
+}

spectrum_manager/src/server.h

➞

Show inline comments

@@ new file 100644 @@
 /**
  * libtransport -- C++ library for easy XMPP Transports development
+ *
  * Copyright (C) 2011, Jan Kaluza <hanzz.k@gmail.com>
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  */
 #pragma once
 #include <boost/program_options.hpp>
 #include <boost/foreach.hpp>
 #include <boost/format.hpp>
 #include <boost/algorithm/string.hpp>
 #include <boost/assign.hpp>
 #include <boost/bind.hpp>
 #include <boost/signal.hpp>
 #include "mongoose.h"
 #include "managerconfig.h"
 class Server {
 	public:
 		struct session {
 			char session_id[33];      // Session ID, must be unique
 			char random[20];          // Random data used for extra user validation
 			char user[255];  // Authenticated user
 			time_t expire;            // Expiration timestamp, UTC
 		};
 		/// Constructor.
 		Server(ManagerConfig *config);
 		/// Destructor
 		virtual ~Server();
 		bool start(int port, const std::string &user, const std::string &password);
 		void *event_handler(enum mg_event event, struct mg_connection *conn);
 	private:
 		void serve_login(struct mg_connection *conn, const struct mg_request_info *request_info);
 		void serve_root(struct mg_connection *conn, const struct mg_request_info *request_info);
 		void print_html(struct mg_connection *conn, const struct mg_request_info *request_info, const std::string &html);
 	private:
 		bool check_password(const char *user, const char *password);
 		session *new_session(const char *user);
 		session *get_session(const struct mg_connection *conn);
 		void authorize(struct mg_connection *conn, const struct mg_request_info *request_info);
 		bool is_authorized(const struct mg_connection *conn, const struct mg_request_info *request_info);
 		void redirect_to(struct mg_connection *conn, const struct mg_request_info *request_info, const char *where);
 	private:
 		struct mg_context *ctx;
 		std::map<std::string, session *> sessions;
 		std::string m_user;
 		std::string m_password;
 		ManagerConfig *m_config;
 };

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