mirror of
https://github.com/PurpleI2P/i2pd
synced 2024-09-20 02:10:19 +03:00
Cleanup util, add documentation.
This commit is contained in:
EinMByte
parent
66754aac5a
commit
79e3f669f0
610
util.cpp
610
util.cpp
@ -60,50 +60,43 @@ http://stackoverflow.com/questions/15660203/inet-pton-identifier-not-found */
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}
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#endif
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namespace i2p
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{
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namespace util
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{
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namespace i2p {
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namespace util {
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namespace config
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{
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std::map<std::string, std::string> mapArgs;
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std::map<std::string, std::vector<std::string> > mapMultiArgs;
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namespace config {
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std::map<std::string, std::string> mapArgs;
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std::map<std::string, std::vector<std::string> > mapMultiArgs;
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void OptionParser(int argc, const char* const argv[])
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void OptionParser(int argc, const char* const argv[])
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{
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mapArgs.clear();
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mapMultiArgs.clear();
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for (int i = 1; i < argc; i++)
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{
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for(int i = 1; i < argc; ++i) {
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std::string strKey (argv[i]);
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std::string strValue;
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size_t has_data = strKey.find('=');
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if (has_data != std::string::npos)
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{
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if(has_data != std::string::npos) {
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strValue = strKey.substr(has_data+1);
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strKey = strKey.substr(0, has_data);
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}
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#ifdef WIN32
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boost::to_lower(strKey);
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if (boost::algorithm::starts_with(strKey, "/"))
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if(boost::algorithm::starts_with(strKey, "/"))
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strKey = "-" + strKey.substr(1);
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#endif
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if (strKey[0] != '-')
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if(strKey[0] != '-')
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break;
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mapArgs[strKey] = strValue;
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mapMultiArgs[strKey].push_back(strValue);
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}
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BOOST_FOREACH(PAIRTYPE(const std::string,std::string)& entry, mapArgs)
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{
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for(auto& entry : mapArgs) {
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std::string name = entry.first;
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// interpret --foo as -foo (as long as both are not set)
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if (name.find("--") == 0)
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{
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if (name.find("--") == 0) {
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std::string singleDash(name.begin()+1, name.end());
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if (mapArgs.count(singleDash) == 0)
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mapArgs[singleDash] = entry.second;
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@ -114,41 +107,42 @@ namespace i2p
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const char* GetCharArg(const std::string& strArg, const std::string& nDefault)
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{
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if (mapArgs.count(strArg))
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if(mapArgs.count(strArg))
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return mapArgs[strArg].c_str();
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return nDefault.c_str();
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}
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std::string GetArg(const std::string& strArg, const std::string& strDefault)
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{
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if (mapArgs.count(strArg))
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if(mapArgs.count(strArg))
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return mapArgs[strArg];
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return strDefault;
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}
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int GetArg(const std::string& strArg, int nDefault)
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{
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if (mapArgs.count(strArg))
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return atoi(mapArgs[strArg].c_str());
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if(mapArgs.count(strArg))
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return stoi(mapArgs[strArg]);
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return nDefault;
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}
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}
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namespace filesystem
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{
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std::string appName ("i2pd");
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std::string appName("i2pd");
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void SetAppName (const std::string& name)
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void SetAppName(const std::string& name)
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{
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appName = name;
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}
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std::string GetAppName ()
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std::string GetAppName()
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{
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return appName;
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}
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const boost::filesystem::path &GetDataDir()
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const boost::filesystem::path& GetDataDir()
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{
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static boost::filesystem::path path;
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@ -157,81 +151,59 @@ namespace filesystem
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/*if (i2p::util::config::mapArgs.count("-datadir"))
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path = boost::filesystem::system_complete(i2p::util::config::mapArgs["-datadir"]);
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else */
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path = GetDefaultDataDir();
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path = GetDefaultDataDir();
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if (!boost::filesystem::exists( path ))
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{
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if(!boost::filesystem::exists(path)) {
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// Create data directory
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if (!boost::filesystem::create_directory( path ))
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{
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if(!boost::filesystem::create_directory(path)) {
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LogPrint("Failed to create data directory!");
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path = "";
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return path;
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}
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}
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if (!boost::filesystem::is_directory(path))
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if(!boost::filesystem::is_directory(path))
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path = GetDefaultDataDir();
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return path;
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}
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std::string GetFullPath (const std::string& filename)
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std::string GetFullPath(const std::string& filename)
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{
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std::string fullPath = GetDataDir ().string ();
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std::string fullPath = GetDataDir().string();
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#ifndef _WIN32
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fullPath.append ("/");
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fullPath.append("/");
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#else
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fullPath.append ("\\");
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fullPath.append("\\");
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#endif
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fullPath.append (filename);
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fullPath.append(filename);
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return fullPath;
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}
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boost::filesystem::path GetConfigFile()
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{
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boost::filesystem::path pathConfigFile(i2p::util::config::GetArg("-conf", "i2p.conf"));
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if (!pathConfigFile.is_complete()) pathConfigFile = GetDataDir() / pathConfigFile;
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if(!pathConfigFile.is_complete())
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pathConfigFile = GetDataDir() / pathConfigFile;
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return pathConfigFile;
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}
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void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet,
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std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet)
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{
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boost::filesystem::ifstream streamConfig(GetConfigFile());
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if (!streamConfig.good())
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return; // No i2pd.conf file is OK
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std::set<std::string> setOptions;
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setOptions.insert("*");
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for (boost::program_options::detail::config_file_iterator it(streamConfig, setOptions), end; it != end; ++it)
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{
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// Don't overwrite existing settings so command line settings override i2pd.conf
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std::string strKey = std::string("-") + it->string_key;
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if (mapSettingsRet.count(strKey) == 0)
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{
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mapSettingsRet[strKey] = it->value[0];
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}
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mapMultiSettingsRet[strKey].push_back(it->value[0]);
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}
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}
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boost::filesystem::path GetDefaultDataDir()
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{
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// Windows < Vista: C:\Documents and Settings\Username\Application Data\i2pd
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// Windows >= Vista: C:\Users\Username\AppData\Roaming\i2pd
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// Mac: ~/Library/Application Support/i2pd
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// Unix: ~/.i2pd or /var/lib/i2pd is system=1
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#ifdef WIN32
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// Windows
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char localAppData[MAX_PATH];
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SHGetFolderPath(NULL, CSIDL_APPDATA, 0, NULL, localAppData);
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return boost::filesystem::path(std::string(localAppData) + "\\" + appName);
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#else
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if (i2p::util::config::GetArg("-service", 0)) // use system folder
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if(i2p::util::config::GetArg("-service", 0)) // use system folder
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return boost::filesystem::path(std::string ("/var/lib/") + appName);
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boost::filesystem::path pathRet;
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char* pszHome = getenv("HOME");
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if (pszHome == NULL || strlen(pszHome) == 0)
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if(pszHome == NULL || strlen(pszHome) == 0)
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pathRet = boost::filesystem::path("/");
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else
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pathRet = boost::filesystem::path(pszHome);
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@ -247,47 +219,62 @@ namespace filesystem
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#endif
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}
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void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet,
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std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet)
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{
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boost::filesystem::ifstream streamConfig(GetConfigFile());
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if(!streamConfig.good())
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return; // No i2pd.conf file is OK
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std::set<std::string> setOptions;
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setOptions.insert("*");
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for(boost::program_options::detail::config_file_iterator it(streamConfig, setOptions), end;
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it != end; ++it) {
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// Don't overwrite existing settings so command line settings override i2pd.conf
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std::string strKey = std::string("-") + it->string_key;
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if(mapSettingsRet.count(strKey) == 0) {
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mapSettingsRet[strKey] = it->value[0];
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}
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mapMultiSettingsRet[strKey].push_back(it->value[0]);
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}
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}
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boost::filesystem::path GetCertificatesDir()
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{
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return GetDataDir () / "certificates";
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}
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}
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}
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namespace http
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{
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std::string httpRequest(const std::string& address)
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{
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try
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{
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try {
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i2p::util::http::url u(address);
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boost::asio::ip::tcp::iostream site;
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// please don't uncomment following line because it's not compatible with boost 1.46
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// 1.46 is default boost for Ubuntu 12.04 LTS
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//site.expires_from_now (boost::posix_time::seconds(30));
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if (u.port_ == 80)
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if(u.port_ == 80)
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site.connect(u.host_, "http");
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else
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{
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else {
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std::stringstream ss; ss << u.port_;
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site.connect(u.host_, ss.str());
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}
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if (site)
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{
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if(site) {
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// User-Agent is needed to get the server list routerInfo files.
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site << "GET " << u.path_ << " HTTP/1.1\r\nHost: " << u.host_
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<< "\r\nAccept: */*\r\n" << "User-Agent: Wget/1.11.4\r\n" << "Connection: close\r\n\r\n";
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<< "\r\nAccept: */*\r\n" << "User-Agent: Wget/1.11.4\r\n"
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<< "Connection: close\r\n\r\n";
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// read response and extract content
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return GetHttpContent (site);
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}
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else
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{
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LogPrint ("Can't connect to ", address);
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return GetHttpContent(site);
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} else {
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LogPrint("Can't connect to ", address);
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return "";
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}
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}
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catch (std::exception& ex)
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{
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LogPrint ("Failed to download ", address, " : ", ex.what ());
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} catch(const std::exception& ex) {
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LogPrint("Failed to download ", address, " : ", ex.what());
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return "";
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}
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}
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@ -299,59 +286,54 @@ namespace http
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int status;
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response >> status; // status
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std::getline (response, statusMessage);
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if (status == 200) // OK
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{
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if(status == 200) { // OK
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bool isChunked = false;
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std::string header;
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while (!response.eof () && header != "\r")
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{
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while(!response.eof() && header != "\r") {
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std::getline(response, header);
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auto colon = header.find (':');
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if (colon != std::string::npos)
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{
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if(colon != std::string::npos) {
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std::string field = header.substr (0, colon);
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if (field == i2p::util::http::TRANSFER_ENCODING)
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isChunked = (header.find ("chunked", colon + 1) != std::string::npos);
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}
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if(field == i2p::util::http::TRANSFER_ENCODING)
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isChunked = (header.find("chunked", colon + 1) != std::string::npos);
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}
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}
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std::stringstream ss;
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if (isChunked)
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MergeChunkedResponse (response, ss);
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if(isChunked)
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MergeChunkedResponse(response, ss);
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else
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ss << response.rdbuf();
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return ss.str();
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}
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else
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{
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LogPrint ("HTTP response ", status);
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} else {
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LogPrint("HTTP response ", status);
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return "";
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}
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}
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void MergeChunkedResponse (std::istream& response, std::ostream& merged)
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void MergeChunkedResponse(std::istream& response, std::ostream& merged)
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{
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while (!response.eof ())
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{
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while(!response.eof()) {
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std::string hexLen;
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int len;
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std::getline (response, hexLen);
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std::istringstream iss (hexLen);
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std::getline(response, hexLen);
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std::istringstream iss(hexLen);
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iss >> std::hex >> len;
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if (!len) break;
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char * buf = new char[len];
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response.read (buf, len);
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merged.write (buf, len);
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if(!len)
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break;
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char* buf = new char[len];
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response.read(buf, len);
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merged.write(buf, len);
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delete[] buf;
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std::getline (response, hexLen); // read \r\n after chunk
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std::getline(response, hexLen); // read \r\n after chunk
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}
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}
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int httpRequestViaI2pProxy(const std::string& address, std::string &content)
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{
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content = "";
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try
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{
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try {
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boost::asio::ip::tcp::iostream site;
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// please don't uncomment following line because it's not compatible with boost 1.46
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// 1.46 is default boost for Ubuntu 12.04 LTS
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@ -360,8 +342,7 @@ namespace http
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std::stringstream ss; ss << i2p::util::config::GetArg("-httpproxyport", 4446);
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site.connect("127.0.0.1", ss.str());
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}
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if (site)
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{
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if(site) {
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i2p::util::http::url u(address);
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std::stringstream ss;
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ss << "GET " << address << " HTTP/1.0" << std::endl;
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@ -378,29 +359,22 @@ namespace http
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int status;
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site >> status; // status
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std::getline(site, statusMessage);
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if (status == 200) // OK
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{
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if(status == 200) { // OK
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std::string header;
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while (std::getline(site, header) && header != "\r"){}
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while(std::getline(site, header) && header != "\r"){}
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std::stringstream ss;
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ss << site.rdbuf();
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content = ss.str();
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return status;
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}
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else
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{
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} else {
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LogPrint("HTTP response ", status);
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return status;
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}
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}
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else
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{
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} else {
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LogPrint("Can't connect to proxy");
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return 408;
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}
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}
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catch (std::exception& ex)
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{
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} catch (std::exception& ex) {
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LogPrint("Failed to download ", address, " : ", ex.what());
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return 408;
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}
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@ -417,47 +391,34 @@ namespace http
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}
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// code for parser tests
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//{
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// i2p::util::http::url u_0("http://127.0.0.1:7070/asdasd?qqqqqqqqqqqq");
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// i2p::util::http::url u_1("http://user:password@site.com:8080/asdasd?qqqqqqqqqqqqq");
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// i2p::util::http::url u_2("http://user:password@site.com/asdasd?qqqqqqqqqqqqqq");
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// i2p::util::http::url u_3("http://user:@site.com/asdasd?qqqqqqqqqqqqq");
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// i2p::util::http::url u_4("http://user@site.com/asdasd?qqqqqqqqqqqq");
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// i2p::util::http::url u_5("http://@site.com:800/asdasd?qqqqqqqqqqqq");
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// i2p::util::http::url u_6("http://@site.com:err_port/asdasd?qqqqqqqqqqqq");
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// i2p::util::http::url u_7("http://user:password@site.com:err_port/asdasd?qqqqqqqqqqqq");
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//}
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void url::parse(const std::string& url_s)
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{
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const std::string prot_end("://");
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std::string::const_iterator prot_i = search(url_s.begin(), url_s.end(),
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prot_end.begin(), prot_end.end());
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std::string::const_iterator prot_i = search(
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url_s.begin(), url_s.end(), prot_end.begin(), prot_end.end()
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);
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protocol_.reserve(distance(url_s.begin(), prot_i));
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transform(url_s.begin(), prot_i,
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back_inserter(protocol_),
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std::ptr_fun<int,int>(tolower)); // protocol is icase
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if( prot_i == url_s.end() )
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// Make portocol lowercase
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transform(
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url_s.begin(), prot_i, back_inserter(protocol_), std::ptr_fun<int, int>(std::tolower)
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);
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if(prot_i == url_s.end())
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return;
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advance(prot_i, prot_end.length());
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std::string::const_iterator path_i = find(prot_i, url_s.end(), '/');
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host_.reserve(distance(prot_i, path_i));
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transform(prot_i, path_i,
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back_inserter(host_),
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std::ptr_fun<int,int>(tolower)); // host is icase
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// Make host lowerase
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transform(prot_i, path_i, back_inserter(host_), std::ptr_fun<int, int>(std::tolower));
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// parse user/password
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auto user_pass_i = find(host_.begin(), host_.end(), '@');
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||||
if (user_pass_i != host_.end())
|
||||
{
|
||||
if(user_pass_i != host_.end()) {
|
||||
std::string user_pass = std::string(host_.begin(), user_pass_i);
|
||||
auto pass_i = find(user_pass.begin(), user_pass.end(), ':');
|
||||
if (pass_i != user_pass.end())
|
||||
{
|
||||
if (pass_i != user_pass.end()) {
|
||||
user_ = std::string(user_pass.begin(), pass_i);
|
||||
pass_ = std::string(pass_i + 1, user_pass.end());
|
||||
}
|
||||
else
|
||||
} else
|
||||
user_ = user_pass;
|
||||
|
||||
host_.assign(user_pass_i + 1, host_.end());
|
||||
@ -465,14 +426,12 @@ namespace http
|
||||
|
||||
// parse port
|
||||
auto port_i = find(host_.begin(), host_.end(), ':');
|
||||
if (port_i != host_.end())
|
||||
{
|
||||
if(port_i != host_.end()) {
|
||||
portstr_ = std::string(port_i + 1, host_.end());
|
||||
host_.assign(host_.begin(), port_i);
|
||||
try{
|
||||
try {
|
||||
port_ = boost::lexical_cast<decltype(port_)>(portstr_);
|
||||
}
|
||||
catch (const std::exception& e) {
|
||||
} catch(const std::exception& e) {
|
||||
port_ = 80;
|
||||
}
|
||||
}
|
||||
@ -487,209 +446,220 @@ namespace http
|
||||
std::string urlDecode(const std::string& data)
|
||||
{
|
||||
std::string res(data);
|
||||
for (size_t pos = res.find('%'); pos != std::string::npos; pos = res.find('%',pos+1))
|
||||
{
|
||||
char c = strtol(res.substr(pos+1,2).c_str(), NULL, 16);
|
||||
res.replace(pos,3,1,c);
|
||||
for(size_t pos = res.find('%'); pos != std::string::npos; pos = res.find('%', pos + 1)) {
|
||||
const char c = strtol(res.substr(pos + 1, 2).c_str(), NULL, 16);
|
||||
res.replace(pos, 3, 1, c);
|
||||
}
|
||||
return res;
|
||||
}
|
||||
}
|
||||
|
||||
namespace net
|
||||
{
|
||||
int GetMTU (const boost::asio::ip::address& localAddress)
|
||||
{
|
||||
namespace net {
|
||||
|
||||
#if defined(__linux__) || defined(__FreeBSD_kernel__)
|
||||
ifaddrs * ifaddr, * ifa = nullptr;
|
||||
if (getifaddrs(&ifaddr) == -1)
|
||||
{
|
||||
LogPrint (eLogError, "Can't excute getifaddrs");
|
||||
return 0;
|
||||
|
||||
int GetMTUUnix(const boost::asio::ip::address& localAddress, int fallback)
|
||||
{
|
||||
ifaddrs* ifaddr, *ifa = nullptr;
|
||||
if(getifaddrs(&ifaddr) == -1) {
|
||||
LogPrint(eLogError, "Can't excute getifaddrs");
|
||||
return fallback;
|
||||
}
|
||||
|
||||
int family = 0;
|
||||
// loook for interface matching local address
|
||||
for (ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next)
|
||||
{
|
||||
if (!ifa->ifa_addr) continue;
|
||||
// look for interface matching local address
|
||||
for(ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next) {
|
||||
if(!ifa->ifa_addr)
|
||||
continue;
|
||||
|
||||
family = ifa->ifa_addr->sa_family;
|
||||
if (family == AF_INET && localAddress.is_v4 ())
|
||||
{
|
||||
sockaddr_in * sa = (sockaddr_in *)ifa->ifa_addr;
|
||||
if (!memcmp (&sa->sin_addr, localAddress.to_v4 ().to_bytes ().data (), 4))
|
||||
if(family == AF_INET && localAddress.is_v4()) {
|
||||
sockaddr_in* sa = (sockaddr_in*) ifa->ifa_addr;
|
||||
if(!memcmp(&sa->sin_addr, localAddress.to_v4().to_bytes().data(), 4))
|
||||
break; // address matches
|
||||
}
|
||||
else if (family == AF_INET6 && localAddress.is_v6 ())
|
||||
{
|
||||
sockaddr_in6 * sa = (sockaddr_in6 *)ifa->ifa_addr;
|
||||
if (!memcmp (&sa->sin6_addr, localAddress.to_v6 ().to_bytes ().data (), 16))
|
||||
} else if(family == AF_INET6 && localAddress.is_v6()) {
|
||||
sockaddr_in6* sa = (sockaddr_in6*) ifa->ifa_addr;
|
||||
if(!memcmp(&sa->sin6_addr, localAddress.to_v6().to_bytes().data(), 16))
|
||||
break; // address matches
|
||||
}
|
||||
}
|
||||
int mtu = 0;
|
||||
if (ifa && family) // interface found?
|
||||
{
|
||||
int fd = socket (family, SOCK_DGRAM, 0);
|
||||
if (fd > 0)
|
||||
{
|
||||
int mtu = fallback;
|
||||
if(ifa && family) { // interface found?
|
||||
int fd = socket(family, SOCK_DGRAM, 0);
|
||||
if(fd > 0) {
|
||||
ifreq ifr;
|
||||
strncpy (ifr.ifr_name, ifa->ifa_name, IFNAMSIZ); // set interface for query
|
||||
if (ioctl (fd, SIOCGIFMTU, &ifr) >= 0)
|
||||
strncpy(ifr.ifr_name, ifa->ifa_name, IFNAMSIZ); // set interface for query
|
||||
if(ioctl(fd, SIOCGIFMTU, &ifr) >= 0)
|
||||
mtu = ifr.ifr_mtu; // MTU
|
||||
else
|
||||
LogPrint (eLogError, "Failed to run ioctl");
|
||||
close (fd);
|
||||
}
|
||||
else
|
||||
LogPrint (eLogError, "Failed to create datagram socket");
|
||||
}
|
||||
else
|
||||
LogPrint (eLogWarning, "Interface for local address", localAddress.to_string (), " not found");
|
||||
close(fd);
|
||||
} else
|
||||
LogPrint(eLogError, "Failed to create datagram socket");
|
||||
} else {
|
||||
LogPrint(
|
||||
eLogWarning, "Interface for local address",
|
||||
localAddress.to_string(), " not found"
|
||||
);
|
||||
}
|
||||
|
||||
freeifaddrs(ifaddr);
|
||||
|
||||
freeifaddrs (ifaddr);
|
||||
return mtu;
|
||||
}
|
||||
|
||||
#elif defined(WIN32)
|
||||
|
||||
int result = 576; // fallback MTU
|
||||
|
||||
DWORD dwRetVal = 0;
|
||||
int GetMTUWindowsIpv4(sockaddr_in inputAddress, int fallback)
|
||||
{
|
||||
ULONG outBufLen = 0;
|
||||
PIP_ADAPTER_ADDRESSES pAddresses = nullptr;
|
||||
PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr;
|
||||
PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr;
|
||||
|
||||
|
||||
if(GetAdaptersAddresses(AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
|
||||
== ERROR_BUFFER_OVERFLOW) {
|
||||
FREE(pAddresses);
|
||||
pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen);
|
||||
}
|
||||
|
||||
DWORD dwRetVal = GetAdaptersAddresses(
|
||||
AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen
|
||||
);
|
||||
|
||||
if(dwRetVal != NO_ERROR) {
|
||||
LogPrint(
|
||||
eLogError, "GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed"
|
||||
);
|
||||
FREE(pAddresses);
|
||||
return fallback;
|
||||
}
|
||||
|
||||
pCurrAddresses = pAddresses;
|
||||
while(pCurrAddresses) {
|
||||
PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
|
||||
|
||||
pUnicast = pCurrAddresses->FirstUnicastAddress;
|
||||
if(pUnicast == nullptr) {
|
||||
LogPrint(
|
||||
eLogError, "GetMTU() has failed: not a unicast ipv4 address, this is not supported"
|
||||
);
|
||||
}
|
||||
for(int i = 0; pUnicast != nullptr; ++i) {
|
||||
LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
|
||||
sockaddr_in* localInterfaceAddress = (sockaddr_in*) lpAddr;
|
||||
if(localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr) {
|
||||
result = pAddresses->Mtu;
|
||||
FREE(pAddresses);
|
||||
return result;
|
||||
}
|
||||
pUnicast = pUnicast->Next;
|
||||
}
|
||||
pCurrAddresses = pCurrAddresses->Next;
|
||||
}
|
||||
|
||||
LogPrint(eLogError, "GetMTU() error: no usable unicast ipv4 addresses found");
|
||||
FREE(pAddresses);
|
||||
return fallback;
|
||||
}
|
||||
|
||||
int GetMTUWindowsIpv6(sockaddr_in inputAddress, int fallback)
|
||||
{
|
||||
ULONG outBufLen = 0;
|
||||
PIP_ADAPTER_ADDRESSES pAddresses = nullptr;
|
||||
PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr;
|
||||
PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr;
|
||||
|
||||
if(GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
|
||||
== ERROR_BUFFER_OVERFLOW) {
|
||||
FREE(pAddresses);
|
||||
pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen);
|
||||
}
|
||||
|
||||
DWORD dwRetVal = GetAdaptersAddresses(
|
||||
AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen
|
||||
);
|
||||
|
||||
if(dwRetVal != NO_ERROR) {
|
||||
LogPrint(
|
||||
eLogError,
|
||||
"GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed"
|
||||
);
|
||||
FREE(pAddresses);
|
||||
return fallback;
|
||||
}
|
||||
|
||||
bool found_address = false;
|
||||
pCurrAddresses = pAddresses;
|
||||
while(pCurrAddresses) {
|
||||
PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
|
||||
pUnicast = pCurrAddresses->FirstUnicastAddress;
|
||||
if(pUnicast == nullptr) {
|
||||
LogPrint(
|
||||
eLogError,
|
||||
"GetMTU() has failed: not a unicast ipv6 address, this is not supported"
|
||||
);
|
||||
}
|
||||
for(int i = 0; pUnicast != nullptr; ++i) {
|
||||
LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
|
||||
sockaddr_in6 *localInterfaceAddress = (sockaddr_in6*) lpAddr;
|
||||
|
||||
for (int j = 0; j != 8; ++j) {
|
||||
if (localInterfaceAddress->sin6_addr.u.Word[j] != inputAddress.sin6_addr.u.Word[j]) {
|
||||
break;
|
||||
} else {
|
||||
found_address = true;
|
||||
}
|
||||
} if (found_address) {
|
||||
result = pAddresses->Mtu;
|
||||
FREE(pAddresses);
|
||||
pAddresses = nullptr;
|
||||
return result;
|
||||
}
|
||||
pUnicast = pUnicast->Next;
|
||||
}
|
||||
|
||||
pCurrAddresses = pCurrAddresses->Next;
|
||||
}
|
||||
|
||||
LogPrint(eLogError, "GetMTU() error: no usable unicast ipv6 addresses found");
|
||||
FREE(pAddresses);
|
||||
return fallback;
|
||||
}
|
||||
|
||||
int GetMTUWindows(const boost::asio::ip::address& localAddress, int fallback)
|
||||
{
|
||||
#ifdef UNICODE
|
||||
string localAddress_temporary = localAddress.to_string();
|
||||
wstring localAddressUniversal (localAddress_temporary.begin(), localAddress_temporary.end());
|
||||
wstring localAddressUniversal(localAddress_temporary.begin(), localAddress_temporary.end());
|
||||
#else
|
||||
std::string localAddressUniversal = localAddress.to_string();
|
||||
#endif
|
||||
|
||||
if (localAddress.is_v4())
|
||||
{
|
||||
struct sockaddr_in inputAddress;
|
||||
if(localAddress.is_v4()) {
|
||||
sockaddr_in inputAddress;
|
||||
inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr));
|
||||
|
||||
if (GetAdaptersAddresses (AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
|
||||
== ERROR_BUFFER_OVERFLOW)
|
||||
{
|
||||
FREE (pAddresses);
|
||||
pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC (outBufLen);
|
||||
}
|
||||
|
||||
dwRetVal = GetAdaptersAddresses (AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen);
|
||||
if (dwRetVal == NO_ERROR)
|
||||
{
|
||||
pCurrAddresses = pAddresses;
|
||||
while (pCurrAddresses)
|
||||
{
|
||||
PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
|
||||
|
||||
pUnicast = pCurrAddresses->FirstUnicastAddress;
|
||||
if (pUnicast != nullptr)
|
||||
{
|
||||
for (int i = 0; pUnicast != nullptr; ++i)
|
||||
{
|
||||
LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
|
||||
struct sockaddr_in *localInterfaceAddress = (struct sockaddr_in*) lpAddr;
|
||||
if (localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr)
|
||||
{
|
||||
result = pAddresses->Mtu;
|
||||
FREE (pAddresses);
|
||||
pAddresses = nullptr;
|
||||
return result;
|
||||
}
|
||||
pUnicast = pUnicast->Next;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
LogPrint (eLogError, "GetMTU() has failed: not a unicast ipv4 address, this is not supported");
|
||||
}
|
||||
|
||||
pCurrAddresses = pCurrAddresses->Next;
|
||||
}
|
||||
|
||||
}
|
||||
else
|
||||
{
|
||||
LogPrint (eLogError, "GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed");
|
||||
return GetMTUWindowsIpv4(inputAddress, fallback);
|
||||
} else if(localAddress.is_v6()) {
|
||||
sockaddr_in6 inputAddress;
|
||||
inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr));
|
||||
return GetMTUWindowsIpv6(inputAddress, fallback);
|
||||
} else {
|
||||
LogPrint(eLogError, "GetMTU() has failed: address family is not supported");
|
||||
return result;
|
||||
}
|
||||
|
||||
}
|
||||
else if (localAddress.is_v6())
|
||||
{
|
||||
struct sockaddr_in6 inputAddress;
|
||||
inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr));
|
||||
}
|
||||
#endif // WIN32
|
||||
|
||||
if (GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
|
||||
== ERROR_BUFFER_OVERFLOW)
|
||||
{
|
||||
FREE (pAddresses);
|
||||
pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC (outBufLen);
|
||||
}
|
||||
int GetMTU(const boost::asio::ip::address& localAddress)
|
||||
{
|
||||
const int fallback = 576; // fallback MTU
|
||||
|
||||
dwRetVal = GetAdaptersAddresses (AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen);
|
||||
if (dwRetVal == NO_ERROR)
|
||||
{
|
||||
bool found_address = false;
|
||||
pCurrAddresses = pAddresses;
|
||||
while (pCurrAddresses)
|
||||
{
|
||||
PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
|
||||
|
||||
pUnicast = pCurrAddresses->FirstUnicastAddress;
|
||||
if (pUnicast != nullptr)
|
||||
{
|
||||
for (int i = 0; pUnicast != nullptr; ++i)
|
||||
{
|
||||
LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
|
||||
struct sockaddr_in6 *localInterfaceAddress = (struct sockaddr_in6*) lpAddr;
|
||||
|
||||
for (int j = 0; j != 8; ++j)
|
||||
{
|
||||
if (localInterfaceAddress->sin6_addr.u.Word[j] != inputAddress.sin6_addr.u.Word[j])
|
||||
{
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
found_address = true;
|
||||
}
|
||||
}
|
||||
if (found_address)
|
||||
{
|
||||
result = pAddresses->Mtu;
|
||||
FREE (pAddresses);
|
||||
pAddresses = nullptr;
|
||||
return result;
|
||||
}
|
||||
pUnicast = pUnicast->Next;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
LogPrint (eLogError, "GetMTU() has failed: not a unicast ipv6 address, this is not supported");
|
||||
}
|
||||
|
||||
pCurrAddresses = pCurrAddresses->Next;
|
||||
}
|
||||
|
||||
}
|
||||
else
|
||||
{
|
||||
LogPrint (eLogError, "GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed");
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
LogPrint (eLogError, "GetMTU() has failed: address family is not supported");
|
||||
}
|
||||
|
||||
FREE (pAddresses);
|
||||
pAddresses = nullptr;
|
||||
LogPrint(eLogError, "GetMTU() error: control flow should never reach this line");
|
||||
return result;
|
||||
#if defined(__linux__) || defined(__FreeBSD_kernel__)
|
||||
return GetMTUUnix(localAddress, fallback);
|
||||
#elif defined(WIN32)
|
||||
return GetMTUWindows(localAddress, fallback);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
93
util.h
93
util.h
@ -18,23 +18,73 @@ namespace util
|
||||
{
|
||||
extern std::map<std::string, std::string> mapArgs;
|
||||
extern std::map<std::string, std::vector<std::string> > mapMultiArgs;
|
||||
|
||||
/**
|
||||
* Parses command line arguments, i.e. stores them in config::mapArgs.
|
||||
*/
|
||||
void OptionParser(int argc, const char* const argv[]);
|
||||
|
||||
/**
|
||||
* @return a command line argument from config::mapArgs as an int
|
||||
* @param nDefault the default value to be returned
|
||||
*/
|
||||
int GetArg(const std::string& strArg, int nDefault);
|
||||
|
||||
/**
|
||||
* @return a command line argument from config::mapArgs as a std::string
|
||||
* @param strDefault the default value to be returned
|
||||
*/
|
||||
std::string GetArg(const std::string& strArg, const std::string& strDefault);
|
||||
|
||||
/**
|
||||
* @return a command line argument from config::mapArgs as a C-style string
|
||||
* @param nDefault the default value to be returned
|
||||
*/
|
||||
const char* GetCharArg(const std::string& strArg, const std::string& nDefault);
|
||||
}
|
||||
|
||||
namespace filesystem
|
||||
{
|
||||
void SetAppName (const std::string& name);
|
||||
std::string GetAppName ();
|
||||
/**
|
||||
* Change the application name.
|
||||
*/
|
||||
void SetAppName(const std::string& name);
|
||||
|
||||
const boost::filesystem::path &GetDataDir();
|
||||
std::string GetFullPath (const std::string& filename);
|
||||
boost::filesystem::path GetDefaultDataDir();
|
||||
/**
|
||||
* @return the application name.
|
||||
*/
|
||||
std::string GetAppName();
|
||||
|
||||
/**
|
||||
* @return the path of the i2pd directory
|
||||
*/
|
||||
const boost::filesystem::path& GetDataDir();
|
||||
|
||||
/**
|
||||
* @return the full path of a file within the i2pd directory
|
||||
*/
|
||||
std::string GetFullPath(const std::string& filename);
|
||||
|
||||
/**
|
||||
* @return the path of the configuration file
|
||||
*/
|
||||
boost::filesystem::path GetConfigFile();
|
||||
|
||||
/**
|
||||
* @return the default directory for i2pd data
|
||||
*/
|
||||
boost::filesystem::path GetDefaultDataDir();
|
||||
|
||||
|
||||
/**
|
||||
* Read a configuration file and store its contents in the given maps.
|
||||
*/
|
||||
void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet,
|
||||
std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
|
||||
|
||||
/**
|
||||
* @return the path of the certificates directory
|
||||
*/
|
||||
boost::filesystem::path GetCertificatesDir();
|
||||
}
|
||||
|
||||
@ -46,10 +96,32 @@ namespace util
|
||||
const char LAST_MODIFIED[] = "Last-Modified";
|
||||
const char TRANSFER_ENCODING[] = "Transfer-Encoding";
|
||||
|
||||
/**
|
||||
* Perform an HTTP request.
|
||||
* @return the result of the request, or an empty string if it fails
|
||||
*/
|
||||
std::string httpRequest(const std::string& address);
|
||||
std::string GetHttpContent (std::istream& response);
|
||||
void MergeChunkedResponse (std::istream& response, std::ostream& merged);
|
||||
int httpRequestViaI2pProxy(const std::string& address, std::string &content); // return http code
|
||||
|
||||
/**
|
||||
* @return the content of the given HTTP stream without headers
|
||||
*/
|
||||
std::string GetHttpContent(std::istream& response);
|
||||
|
||||
/**
|
||||
* Merge chunks of a HTTP response into the gien std:ostream object.
|
||||
*/
|
||||
void MergeChunkedResponse(std::istream& response, std::ostream& merged);
|
||||
|
||||
/**
|
||||
* Send an HTTP request through the i2p proxy.
|
||||
* @return the HTTP status code
|
||||
*/
|
||||
int httpRequestViaI2pProxy(const std::string& address, std::string &content);
|
||||
|
||||
|
||||
/**
|
||||
* @return the decoded url
|
||||
*/
|
||||
std::string urlDecode(const std::string& data);
|
||||
|
||||
/**
|
||||
@ -73,7 +145,10 @@ namespace util
|
||||
|
||||
namespace net
|
||||
{
|
||||
int GetMTU (const boost::asio::ip::address& localAddress);
|
||||
/**
|
||||
* @return the maximum transmission unit, or 576 on failure
|
||||
*/
|
||||
int GetMTU(const boost::asio::ip::address& localAddress);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user