diff options
Diffstat (limited to 'louloulibs')
64 files changed, 0 insertions, 6159 deletions
diff --git a/louloulibs/CMakeLists.txt b/louloulibs/CMakeLists.txt deleted file mode 100644 index 908c35f..0000000 --- a/louloulibs/CMakeLists.txt +++ /dev/null @@ -1,167 +0,0 @@ -cmake_minimum_required(VERSION 2.6) - -set(${PROJECT_NAME}_VERSION_MAJOR 1) -set(${PROJECT_NAME}_VERSION_MINOR 0) -set(${PROJECT_NAME}_VERSION_SUFFIX "~dev") - -set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y -pedantic -Wall -Wextra") - -# Define a __FILENAME__ macro to get the filename of each file, instead of -# the full path as in __FILE__ -set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILENAME__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'") - -# -## Look for external libraries -# -set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules/") -include(FindEXPAT) -find_package(EXPAT REQUIRED) -find_package(ICONV REQUIRED) -find_package(LIBUUID REQUIRED) - -if(WITH_LIBIDN) - find_package(LIBIDN REQUIRED) -elseif(NOT WITHOUT_LIBIDN) - find_package(LIBIDN) -endif() - -if(WITH_SYSTEMD) - find_package(SYSTEMD REQUIRED) -elseif(NOT WITHOUT_SYSTEMD) - find_package(SYSTEMD) -endif() - -if(WITH_BOTAN) - find_package(BOTAN REQUIRED) -elseif(NOT WITHOUT_BOTAN) - find_package(BOTAN) -endif() - -if(WITH_CARES) - find_package(CARES REQUIRED) -elseif(NOT WITHOUT_CARES) - find_package(CARES) -endif() - -# To be able to include the config.h file generated by cmake -include_directories("${CMAKE_CURRENT_BINARY_DIR}") -include_directories("${CMAKE_CURRENT_SOURCE_DIR}") -include_directories(${EXPAT_INCLUDE_DIRS}) -include_directories(${ICONV_INCLUDE_DIRS}) -include_directories(${LIBUUID_INCLUDE_DIRS}) - -set(EXPAT_INCLUDE_DIRS ${EXPAT_INCLUDE_DIRS} PARENT_SCOPE) -set(ICONV_INCLUDE_DIRS ${ICONV_INCLUDE_DIRS} PARENT_SCOPE) -set(LIBUUID_INCLUDE_DIRS ${LIBUUID_INCLUDE_DIRS} PARENT_SCOPE) - -if(LIBIDN_FOUND) - include_directories(${LIBIDN_INCLUDE_DIRS}) - set(LIBDIN_FOUND ${LIBDIN_FOUND} PARENT_SCOPE) - set(LIBDIN_INCLUDE_DIRS ${LIBDIN_INCLUDE_DIRS} PARENT_SCOPE) -endif() - -if(SYSTEMD_FOUND) - include_directories(${SYSTEMD_INCLUDE_DIRS}) - set(SYSTEMD_FOUND ${SYSTEMD_FOUND} PARENT_SCOPE) - set(SYSTEMD_INCLUDE_DIRS ${SYSTEMD_INCLUDE_DIRS} PARENT_SCOPE) -endif() - -if(BOTAN_FOUND) - include_directories(SYSTEM ${BOTAN_INCLUDE_DIRS}) - set(BOTAN_FOUND ${BOTAN_FOUND} PARENT_SCOPE) - set(BOTAN_INCLUDE_DIRS ${BOTAN_INCLUDE_DIRS} PARENT_SCOPE) -endif() - -if(CARES_FOUND) - include_directories(${CARES_INCLUDE_DIRS}) - set(CARES_FOUND ${CARES_FOUND} PARENT_SCOPE) - set(CARES_INCLUDE_DIRS ${CARES_INCLUDE_DIRS} PARENT_SCOPE) -endif() - -set(POLLER_DOCSTRING "Choose the poller between POLL and EPOLL (Linux-only)") -if(${CMAKE_SYSTEM_NAME} MATCHES "Linux") - set(POLLER "EPOLL" CACHE STRING ${POLLER_DOCSTRING}) -else() - set(POLLER "POLL" CACHE STRING ${POLLER_DOCSTRING}) -endif() -if((NOT ${POLLER} MATCHES "POLL") AND - (NOT ${POLLER} MATCHES "EPOLL")) - message(FATAL_ERROR "POLLER must be either POLL or EPOLL") -endif() - -# -## utils -# -file(GLOB source_utils - utils/*.[hc]pp) -add_library(utils STATIC ${source_utils}) -target_link_libraries(utils ${ICONV_LIBRARIES}) - -# -## config -# -file(GLOB source_config - config/*.[hc]pp) -add_library(config STATIC ${source_config}) -target_link_libraries(config utils) - -# -## logger -# -file(GLOB source_logger - logger/*.[hc]pp) -add_library(logger STATIC ${source_logger}) -target_link_libraries(logger config) - -# -## network -# -file(GLOB source_network - network/*.[hc]pp) -add_library(network STATIC ${source_network}) -target_link_libraries(network logger) -if(BOTAN_FOUND) - target_link_libraries(network ${BOTAN_LIBRARIES}) -endif() -if(CARES_FOUND) - target_link_libraries(network ${CARES_LIBRARIES}) -endif() - -# -## xmpplib -# -file(GLOB source_xmpplib - xmpp/*.[hc]pp) -add_library(xmpplib STATIC ${source_xmpplib}) -target_link_libraries(xmpplib network utils logger - ${EXPAT_LIBRARIES} - ${LIBUUID_LIBRARIES}) -if(LIBIDN_FOUND) - target_link_libraries(xmpplib ${LIBIDN_LIBRARIES}) -endif() -if(SYSTEMD_FOUND) - target_link_libraries(xmpplib ${SYSTEMD_LIBRARIES}) -endif() - -# -## Check if we have std::get_time -# -include(CheckCXXSourceCompiles) - -check_cxx_source_compiles(" - #include <iomanip> - int main() - { std::get_time(nullptr, \"\"); }" - HAS_GET_TIME) - -mark_as_advanced(HAS_GET_TIME) - -check_cxx_source_compiles(" - #include <iomanip> - int main() - { std::put_time(nullptr, \"\"); }" - HAS_PUT_TIME) - -mark_as_advanced(HAS_PUT_TIME) - -configure_file(${CMAKE_CURRENT_SOURCE_DIR}/louloulibs.h.cmake ${CMAKE_BINARY_DIR}/src/louloulibs.h) diff --git a/louloulibs/cmake/Modules/FindBOTAN.cmake b/louloulibs/cmake/Modules/FindBOTAN.cmake deleted file mode 100644 index 13d2de4..0000000 --- a/louloulibs/cmake/Modules/FindBOTAN.cmake +++ /dev/null @@ -1,43 +0,0 @@ -# - Find botan -# Find the botan cryptographic library -# -# This module defines the following variables: -# BOTAN_FOUND - True if library and include directory are found -# If set to TRUE, the following are also defined: -# BOTAN_INCLUDE_DIRS - The directory where to find the header file -# BOTAN_LIBRARIES - Where to find the library file -# -# For conveniance, these variables are also set. They have the same values -# than the variables above. The user can thus choose his/her prefered way -# to write them. -# BOTAN_LIBRARY -# BOTAN_INCLUDE_DIR -# -# This file is in the public domain - -include(FindPkgConfig) - -pkg_check_modules(BOTAN botan-2) -pkg_check_modules(BOTAN botan-1.11) - -if(NOT BOTAN_FOUND) - find_path(BOTAN_INCLUDE_DIRS NAMES botan/botan.h - PATH_SUFFIXES botan-2 botan-1.11 - DOC "The botan include directory") - - find_library(BOTAN_LIBRARIES NAMES botan botan-2 botan-1.11 - DOC "The botan library") - - # Use some standard module to handle the QUIETLY and REQUIRED arguments, and - # set BOTAN_FOUND to TRUE if these two variables are set. - include(FindPackageHandleStandardArgs) - find_package_handle_standard_args(BOTAN REQUIRED_VARS BOTAN_LIBRARIES BOTAN_INCLUDE_DIRS) - - if(BOTAN_FOUND) - set(BOTAN_LIBRARY ${BOTAN_LIBRARIES} CACHE INTERNAL "") - set(BOTAN_INCLUDE_DIR ${BOTAN_INCLUDE_DIRS} CACHE INTERNAL "") - set(BOTAN_FOUND ${BOTAN_FOUND} CACHE INTERNAL "") - endif() -endif() - -mark_as_advanced(BOTAN_INCLUDE_DIRS BOTAN_LIBRARIES) diff --git a/louloulibs/cmake/Modules/FindCARES.cmake b/louloulibs/cmake/Modules/FindCARES.cmake deleted file mode 100644 index c4c757a..0000000 --- a/louloulibs/cmake/Modules/FindCARES.cmake +++ /dev/null @@ -1,37 +0,0 @@ -# - Find c-ares -# Find the c-ares library, and more particularly the stringprep header. -# -# This module defines the following variables: -# CARES_FOUND - True if library and include directory are found -# If set to TRUE, the following are also defined: -# CARES_INCLUDE_DIRS - The directory where to find the header file -# CARES_LIBRARIES - Where to find the library file -# -# For conveniance, these variables are also set. They have the same values -# than the variables above. The user can thus choose his/her prefered way -# to write them. -# CARES_INCLUDE_DIR -# CARES_LIBRARY -# -# This file is in the public domain - -if(NOT CARES_FOUND) - find_path(CARES_INCLUDE_DIRS NAMES ares.h - DOC "The c-ares include directory") - - find_library(CARES_LIBRARIES NAMES cares - DOC "The c-ares library") - - # Use some standard module to handle the QUIETLY and REQUIRED arguments, and - # set CARES_FOUND to TRUE if these two variables are set. - include(FindPackageHandleStandardArgs) - find_package_handle_standard_args(CARES REQUIRED_VARS CARES_LIBRARIES CARES_INCLUDE_DIRS) - - # Compatibility for all the ways of writing these variables - if(CARES_FOUND) - set(CARES_INCLUDE_DIR ${CARES_INCLUDE_DIRS}) - set(CARES_LIBRARY ${CARES_LIBRARIES}) - endif() -endif() - -mark_as_advanced(CARES_INCLUDE_DIRS CARES_LIBRARIES) diff --git a/louloulibs/cmake/Modules/FindICONV.cmake b/louloulibs/cmake/Modules/FindICONV.cmake deleted file mode 100644 index 7ca173f..0000000 --- a/louloulibs/cmake/Modules/FindICONV.cmake +++ /dev/null @@ -1,60 +0,0 @@ -# - Find iconv -# Find the iconv (character set conversion) library -# -# This module defines the following variables: -# ICONV_FOUND - True if library and include directory are found -# If set to TRUE, the following are also defined: -# ICONV_INCLUDE_DIRS - The directory where to find the header file -# ICONV_LIBRARIES - Where to find the library file -# ICONV_SECOND_ARGUMENT_IS_CONST - The second argument for iconv() is const -# -# For conveniance, these variables are also set. They have the same values -# than the variables above. The user can thus choose his/her prefered way -# to write them. -# ICONV_LIBRARY -# ICONV_INCLUDE_DIR -# -# This file is in the public domain - -find_path(ICONV_INCLUDE_DIRS NAMES iconv.h - DOC "The iconv include directory") - -find_library(ICONV_LIBRARIES NAMES iconv libiconv libiconv-2 c - DOC "The iconv library") - -# Use some standard module to handle the QUIETLY and REQUIRED arguments, and -# set ICONV_FOUND to TRUE if these two variables are set. -include(FindPackageHandleStandardArgs) -find_package_handle_standard_args(Iconv REQUIRED_VARS ICONV_LIBRARIES ICONV_INCLUDE_DIRS) - -# Check if the prototype is -# size_t iconv(iconv_t cd, char** inbuf, size_t* inbytesleft, -# char** outbuf, size_t* outbytesleft); -# or -# size_t iconv (iconv_t cd, const char** inbuf, size_t* inbytesleft, -# char** outbuf, size_t* outbytesleft); -if(ICONV_FOUND) - include(CheckCXXSourceCompiles) - - # Set the parameters needed to compile the following code. - set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIRS}) - set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES}) - - check_cxx_source_compiles(" - #include <iconv.h> - int main(){ - iconv_t conv = 0; - const char* in = 0; - size_t ilen = 0; - char* out = 0; - size_t olen = 0; - iconv(conv, &in, &ilen, &out, &olen); - return 0;}" - ICONV_SECOND_ARGUMENT_IS_CONST) - -# Compatibility for all the ways of writing these variables - set(ICONV_LIBRARY ${ICONV_LIBRARIES}) - set(ICONV_INCLUDE_DIR ${ICONV_INCLUDE_DIRS}) -endif() - -mark_as_advanced(ICONV_INCLUDE_DIRS ICONV_LIBRARIES ICONV_SECOND_ARGUMENT_IS_CONST)
\ No newline at end of file diff --git a/louloulibs/cmake/Modules/FindLIBIDN.cmake b/louloulibs/cmake/Modules/FindLIBIDN.cmake deleted file mode 100644 index 611a6a8..0000000 --- a/louloulibs/cmake/Modules/FindLIBIDN.cmake +++ /dev/null @@ -1,41 +0,0 @@ -# - Find libidn -# Find the libidn library, and more particularly the stringprep header. -# -# This module defines the following variables: -# LIBIDN_FOUND - True if library and include directory are found -# If set to TRUE, the following are also defined: -# LIBIDN_INCLUDE_DIRS - The directory where to find the header file -# LIBIDN_LIBRARIES - Where to find the library file -# -# For conveniance, these variables are also set. They have the same values -# than the variables above. The user can thus choose his/her prefered way -# to write them. -# LIBIDN_INCLUDE_DIR -# LIBIDN_LIBRARY -# -# This file is in the public domain - -include(FindPkgConfig) -pkg_check_modules(LIBIDN libidn) - -if(NOT LIBIDN_FOUND) - find_path(LIBIDN_INCLUDE_DIRS NAMES stringprep.h - DOC "The libidn include directory") - - # The library containing the stringprep module is libidn - find_library(LIBIDN_LIBRARIES NAMES idn - DOC "The libidn library") - - # Use some standard module to handle the QUIETLY and REQUIRED arguments, and - # set LIBIDN_FOUND to TRUE if these two variables are set. - include(FindPackageHandleStandardArgs) - find_package_handle_standard_args(LIBIDN REQUIRED_VARS LIBIDN_LIBRARIES LIBIDN_INCLUDE_DIRS) - - # Compatibility for all the ways of writing these variables - if(LIBIDN_FOUND) - set(LIBIDN_INCLUDE_DIR ${LIBIDN_INCLUDE_DIRS}) - set(LIBIDN_LIBRARY ${LIBIDN_LIBRARIES}) - endif() -endif() - -mark_as_advanced(LIBIDN_INCLUDE_DIRS LIBIDN_LIBRARIES)
\ No newline at end of file diff --git a/louloulibs/cmake/Modules/FindLIBUUID.cmake b/louloulibs/cmake/Modules/FindLIBUUID.cmake deleted file mode 100644 index f344249..0000000 --- a/louloulibs/cmake/Modules/FindLIBUUID.cmake +++ /dev/null @@ -1,41 +0,0 @@ -# - Find libuuid -# Find the libuuid library -# -# This module defines the following variables: -# LIBUUID_FOUND - True if library and include directory are found -# If set to TRUE, the following are also defined: -# LIBUUID_INCLUDE_DIRS - The directory where to find the header file -# LIBUUID_LIBRARIES - Where to find the library file -# -# For conveniance, these variables are also set. They have the same values -# than the variables above. The user can thus choose his/her prefered way -# to write them. -# LIBUUID_INCLUDE_DIR -# LIBUUID_LIBRARY -# -# This file is in the public domain - -include(FindPkgConfig) -pkg_check_modules(LIBUUID uuid) - -if(NOT LIBUUID_FOUND) - find_path(LIBUUID_INCLUDE_DIRS NAMES uuid/uuid.h - PATH_SUFFIXES uuid - DOC "The libuuid include directory") - - find_library(LIBUUID_LIBRARIES NAMES uuid - DOC "The libuuid library") - - # Use some standard module to handle the QUIETLY and REQUIRED arguments, and - # set LIBUUID_FOUND to TRUE if these two variables are set. - include(FindPackageHandleStandardArgs) - find_package_handle_standard_args(LIBUUID REQUIRED_VARS LIBUUID_LIBRARIES LIBUUID_INCLUDE_DIRS) - - # Compatibility for all the ways of writing these variables - if(LIBUUID_FOUND) - set(LIBUUID_INCLUDE_DIR ${LIBUUID_INCLUDE_DIRS}) - set(LIBUUID_LIBRARY ${LIBUUID_LIBRARIES}) - endif() -endif() - -mark_as_advanced(LIBUUID_INCLUDE_DIRS LIBUUID_LIBRARIES) diff --git a/louloulibs/cmake/Modules/FindSYSTEMD.cmake b/louloulibs/cmake/Modules/FindSYSTEMD.cmake deleted file mode 100644 index c7decde..0000000 --- a/louloulibs/cmake/Modules/FindSYSTEMD.cmake +++ /dev/null @@ -1,39 +0,0 @@ -# - Find SystemdDaemon -# Find the systemd daemon library -# -# This module defines the following variables: -# SYSTEMD_FOUND - True if library and include directory are found -# If set to TRUE, the following are also defined: -# SYSTEMD_INCLUDE_DIRS - The directory where to find the header file -# SYSTEMD_LIBRARIES - Where to find the library file -# -# For conveniance, these variables are also set. They have the same values -# than the variables above. The user can thus choose his/her prefered way -# to write them. -# SYSTEMD_LIBRARY -# SYSTEMD_INCLUDE_DIR -# -# This file is in the public domain - -include(FindPkgConfig) -pkg_check_modules(SYSTEMD libsystemd) - -if(NOT SYSTEMD_FOUND) - find_path(SYSTEMD_INCLUDE_DIRS NAMES systemd/sd-daemon.h - DOC "The Systemd include directory") - - find_library(SYSTEMD_LIBRARIES NAMES systemd - DOC "The Systemd library") - - # Use some standard module to handle the QUIETLY and REQUIRED arguments, and - # set SYSTEMD_FOUND to TRUE if these two variables are set. - include(FindPackageHandleStandardArgs) - find_package_handle_standard_args(SYSTEMD REQUIRED_VARS SYSTEMD_LIBRARIES SYSTEMD_INCLUDE_DIRS) - - if(SYSTEMD_FOUND) - set(SYSTEMD_LIBRARY ${SYSTEMD_LIBRARIES}) - set(SYSTEMD_INCLUDE_DIR ${SYSTEMD_INCLUDE_DIRS}) - endif() -endif() - -mark_as_advanced(SYSTEMD_INCLUDE_DIRS SYSTEMD_LIBRARIES)
\ No newline at end of file diff --git a/louloulibs/config/config.cpp b/louloulibs/config/config.cpp deleted file mode 100644 index 417981d..0000000 --- a/louloulibs/config/config.cpp +++ /dev/null @@ -1,104 +0,0 @@ -#include <config/config.hpp> -#include <logger/logger.hpp> - -#include <cstring> -#include <sstream> - -#include <cstdlib> - -std::string Config::filename{}; -std::map<std::string, std::string> Config::values{}; -std::vector<t_config_changed_callback> Config::callbacks{}; - -std::string Config::get(const std::string& option, const std::string& def) -{ - auto it = Config::values.find(option); - - if (it == Config::values.end()) - return def; - return it->second; -} - -int Config::get_int(const std::string& option, const int& def) -{ - std::string res = Config::get(option, ""); - if (!res.empty()) - return std::atoi(res.c_str()); - else - return def; -} - -void Config::set(const std::string& option, const std::string& value, bool save) -{ - Config::values[option] = value; - if (save) - { - Config::save_to_file(); - Config::trigger_configuration_change(); - } -} - -void Config::connect(t_config_changed_callback callback) -{ - Config::callbacks.push_back(callback); -} - -void Config::clear() -{ - Config::values.clear(); -} - -/** - * Private methods - */ -void Config::trigger_configuration_change() -{ - std::vector<t_config_changed_callback>::iterator it; - for (it = Config::callbacks.begin(); it < Config::callbacks.end(); ++it) - (*it)(); -} - -bool Config::read_conf(const std::string& name) -{ - if (!name.empty()) - Config::filename = name; - - std::ifstream file(Config::filename.data()); - if (!file.is_open()) - { - log_error("Error while opening file ", filename, " for reading: ", strerror(errno)); - return false; - } - - Config::clear(); - - std::string line; - size_t pos; - std::string option; - std::string value; - while (file.good()) - { - std::getline(file, line); - if (line == "" || line[0] == '#') - continue ; - pos = line.find('='); - if (pos == std::string::npos) - continue ; - option = line.substr(0, pos); - value = line.substr(pos+1); - Config::values[option] = value; - } - return true; -} - -void Config::save_to_file() -{ - std::ofstream file(Config::filename.data()); - if (file.fail()) - { - log_error("Could not save config file."); - return ; - } - for (const auto& it: Config::values) - file << it.first << "=" << it.second << '\n'; -} diff --git a/louloulibs/config/config.hpp b/louloulibs/config/config.hpp deleted file mode 100644 index 6728df8..0000000 --- a/louloulibs/config/config.hpp +++ /dev/null @@ -1,94 +0,0 @@ -/** - * Read the config file and save all the values in a map. - * Also, a singleton. - * - * Use Config::filename = "bla" to set the filename you want to use. - * - * If you want to exit if the file does not exist when it is open for - * reading, set Config::file_must_exist = true. - * - * Config::get() can then be used to access the values in the conf. - * - * Use Config::close() when you're done getting/setting value. This will - * save the config into the file. - */ - -#pragma once - - -#include <functional> -#include <fstream> -#include <memory> -#include <vector> -#include <string> -#include <map> - -typedef std::function<void()> t_config_changed_callback; - -class Config -{ -public: - Config() = default; - ~Config() = default; - Config(const Config&) = delete; - Config& operator=(const Config&) = delete; - Config(Config&&) = delete; - Config& operator=(Config&&) = delete; - - /** - * returns a value from the config. If it doesn’t exist, use - * the second argument as the default. - */ - static std::string get(const std::string&, const std::string&); - /** - * returns a value from the config. If it doesn’t exist, use - * the second argument as the default. - */ - static int get_int(const std::string&, const int&); - /** - * Set a value for the given option. And write all the config - * in the file from which it was read if save is true. - */ - static void set(const std::string&, const std::string&, bool save = false); - /** - * Adds a function to a list. This function will be called whenever a - * configuration change occurs (when set() is called, or when the initial - * conf is read) - */ - static void connect(t_config_changed_callback); - /** - * Destroy the instance, forcing it to be recreated (with potentially - * different parameters) the next time it’s needed. - */ - static void clear(); - /** - * Read the configuration file at the given path. - */ - static bool read_conf(const std::string& name=""); - /** - * Get the filename - */ - static const std::string& get_filename() - { return Config::filename; } - -private: - /** - * Set the value of the filename to use, before calling any method. - */ - static std::string filename; - /** - * Write all the config values into the configuration file - */ - static void save_to_file(); - /** - * Call all the callbacks previously registered using connect(). - * This is used to notify any class that a configuration change occured. - */ - static void trigger_configuration_change(); - - static std::map<std::string, std::string> values; - static std::vector<t_config_changed_callback> callbacks; - -}; - - diff --git a/louloulibs/logger/logger.cpp b/louloulibs/logger/logger.cpp deleted file mode 100644 index 7336579..0000000 --- a/louloulibs/logger/logger.cpp +++ /dev/null @@ -1,38 +0,0 @@ -#include <logger/logger.hpp> -#include <config/config.hpp> - -Logger::Logger(const int log_level): - log_level(log_level), - stream(std::cout.rdbuf()) -{ -} - -Logger::Logger(const int log_level, const std::string& log_file): - log_level(log_level), - ofstream(log_file.data(), std::ios_base::app), - stream(ofstream.rdbuf()) -{ -} - -std::unique_ptr<Logger>& Logger::instance() -{ - static std::unique_ptr<Logger> instance; - - if (!instance) - { - const std::string log_file = Config::get("log_file", ""); - const int log_level = Config::get_int("log_level", 0); - if (log_file.empty()) - instance = std::make_unique<Logger>(log_level); - else - instance = std::make_unique<Logger>(log_level, log_file); - } - return instance; -} - -std::ostream& Logger::get_stream(const int lvl) -{ - if (lvl >= this->log_level) - return this->stream; - return this->null_stream; -} diff --git a/louloulibs/logger/logger.hpp b/louloulibs/logger/logger.hpp deleted file mode 100644 index 0893c77..0000000 --- a/louloulibs/logger/logger.hpp +++ /dev/null @@ -1,126 +0,0 @@ -#pragma once - - -/** - * Singleton used in logger macros to write into files or stdout, with - * various levels of severity. - * Only the macros should be used. - * @class Logger - */ - -#include <memory> -#include <iostream> -#include <fstream> - -#define debug_lvl 0 -#define info_lvl 1 -#define warning_lvl 2 -#define error_lvl 3 - -#include "louloulibs.h" -#ifdef SYSTEMD_FOUND -# include <systemd/sd-daemon.h> -#else -# define SD_DEBUG "[DEBUG]: " -# define SD_INFO "[INFO]: " -# define SD_WARNING "[WARNING]: " -# define SD_ERR "[ERROR]: " -#endif - -// Macro defined to get the filename instead of the full path. But if it is -// not properly defined by the build system, we fallback to __FILE__ -#ifndef __FILENAME__ -# define __FILENAME__ __FILE__ -#endif - -/** - * Juste a structure representing a stream doing nothing with its input. - */ -class nullstream: public std::ostream -{ -public: - nullstream(): - std::ostream(0) - { } -}; - -class Logger -{ -public: - static std::unique_ptr<Logger>& instance(); - std::ostream& get_stream(const int); - Logger(const int log_level, const std::string& log_file); - Logger(const int log_level); - - Logger(const Logger&) = delete; - Logger& operator=(const Logger&) = delete; - Logger(Logger&&) = delete; - Logger& operator=(Logger&&) = delete; - -private: - const int log_level; - std::ofstream ofstream; - nullstream null_stream; - std::ostream stream; -}; - -#define WHERE __FILENAME__, ":", __LINE__, ":\t" - -namespace logging_details -{ - template <typename T> - void log(std::ostream& os, const T& arg) - { - os << arg << std::endl; - } - - template <typename T, typename... U> - void log(std::ostream& os, const T& first, U&&... rest) - { - os << first; - log(os, std::forward<U>(rest)...); - } - - template <typename... U> - void log_debug(U&&... args) - { - auto& os = Logger::instance()->get_stream(debug_lvl); - os << SD_DEBUG; - log(os, std::forward<U>(args)...); - } - - template <typename... U> - void log_info(U&&... args) - { - auto& os = Logger::instance()->get_stream(info_lvl); - os << SD_INFO; - log(os, std::forward<U>(args)...); - } - - template <typename... U> - void log_warning(U&&... args) - { - auto& os = Logger::instance()->get_stream(warning_lvl); - os << SD_WARNING; - log(os, std::forward<U>(args)...); - } - - template <typename... U> - void log_error(U&&... args) - { - auto& os = Logger::instance()->get_stream(error_lvl); - os << SD_ERR; - log(os, std::forward<U>(args)...); - } -} - -#define log_info(...) logging_details::log_info(WHERE, __VA_ARGS__) - -#define log_warning(...) logging_details::log_warning(WHERE, __VA_ARGS__) - -#define log_error(...) logging_details::log_error(WHERE, __VA_ARGS__) - -#define log_debug(...) logging_details::log_debug(WHERE, __VA_ARGS__) - - - diff --git a/louloulibs/louloulibs.h.cmake b/louloulibs/louloulibs.h.cmake deleted file mode 100644 index 6131b70..0000000 --- a/louloulibs/louloulibs.h.cmake +++ /dev/null @@ -1,11 +0,0 @@ -#define SYSTEM_NAME "${CMAKE_SYSTEM}" -#cmakedefine ICONV_SECOND_ARGUMENT_IS_CONST -#cmakedefine LIBIDN_FOUND -#cmakedefine SYSTEMD_FOUND -#cmakedefine POLLER ${POLLER} -#cmakedefine BOTAN_FOUND -#cmakedefine CARES_FOUND -#cmakedefine SOFTWARE_VERSION "${SOFTWARE_VERSION}" -#cmakedefine PROJECT_NAME "${PROJECT_NAME}" -#cmakedefine HAS_GET_TIME -#cmakedefine HAS_PUT_TIME diff --git a/louloulibs/network/credentials_manager.cpp b/louloulibs/network/credentials_manager.cpp deleted file mode 100644 index 289307b..0000000 --- a/louloulibs/network/credentials_manager.cpp +++ /dev/null @@ -1,140 +0,0 @@ -#include "louloulibs.h" - -#ifdef BOTAN_FOUND -#include <network/tcp_socket_handler.hpp> -#include <network/credentials_manager.hpp> -#include <logger/logger.hpp> -#include <botan/tls_exceptn.h> -#include <config/config.hpp> - -#ifdef USE_DATABASE -# include <database/database.hpp> -#endif - -/** - * TODO find a standard way to find that out. - */ -static const std::vector<std::string> default_cert_files = { - "/etc/ssl/certs/ca-bundle.crt", - "/etc/pki/tls/certs/ca-bundle.crt", - "/etc/ssl/certs/ca-certificates.crt", - "/etc/ca-certificates/extracted/tls-ca-bundle.pem" -}; - -Botan::Certificate_Store_In_Memory BasicCredentialsManager::certificate_store; -bool BasicCredentialsManager::certs_loaded = false; - -BasicCredentialsManager::BasicCredentialsManager(const TCPSocketHandler* const socket_handler): - Botan::Credentials_Manager(), - socket_handler(socket_handler), - trusted_fingerprint{} -{ - BasicCredentialsManager::load_certs(); -} - -void BasicCredentialsManager::set_trusted_fingerprint(const std::string& fingerprint) -{ - this->trusted_fingerprint = fingerprint; -} - -const std::string& BasicCredentialsManager::get_trusted_fingerprint() const -{ - return this->trusted_fingerprint; -} - -void check_tls_certificate(const std::vector<Botan::X509_Certificate>& certs, - const std::string& hostname, const std::string& trusted_fingerprint, - std::exception_ptr exc) -{ - - if (!trusted_fingerprint.empty() && !certs.empty() && - trusted_fingerprint == certs[0].fingerprint() && - certs[0].matches_dns_name(hostname)) - // We trust the certificate, based on the trusted fingerprint and - // the fact that the hostname matches - return; - - if (exc) - std::rethrow_exception(exc); -} - -#if BOTAN_VERSION_CODE < BOTAN_VERSION_CODE_FOR(1,11,34) -void BasicCredentialsManager::verify_certificate_chain(const std::string& type, - const std::string& purported_hostname, - const std::vector<Botan::X509_Certificate>& certs) -{ - log_debug("Checking remote certificate (", type, ") for hostname ", purported_hostname); - try - { - Botan::Credentials_Manager::verify_certificate_chain(type, purported_hostname, certs); - log_debug("Certificate is valid"); - } - catch (const std::exception& tls_exception) - { - log_warning("TLS certificate check failed: ", tls_exception.what()); - std::exception_ptr exception_ptr{}; - if (this->socket_handler->abort_on_invalid_cert()) - exception_ptr = std::current_exception(); - - check_tls_certificate(certs, purported_hostname, this->trusted_fingerprint, exception_ptr); - } -} -#endif - -bool BasicCredentialsManager::try_to_open_one_ca_bundle(const std::vector<std::string>& paths) -{ - for (const auto& path: paths) - { - try - { - Botan::DataSource_Stream bundle(path); - log_debug("Using ca bundle: ", path); - while (!bundle.end_of_data() && bundle.check_available(27)) - { - // TODO: remove this work-around for Botan 1.11.29 - // https://github.com/randombit/botan/issues/438#issuecomment-192866796 - // Note that every certificate that fails to be transcoded into latin-1 - // will be ignored. As a result, some TLS connection may be refused - // because the certificate is signed by an issuer that was ignored. - try { - Botan::X509_Certificate cert(bundle); - BasicCredentialsManager::certificate_store.add_certificate(std::move(cert)); - } catch (const Botan::Decoding_Error& error) { - continue; - } - } - // Only use the first file that can successfully be read. - return true; - } - catch (const Botan::Stream_IO_Error& e) - { - log_debug(e.what()); - } - } - return false; -} - -void BasicCredentialsManager::load_certs() -{ - // Only load the certificates the first time - if (BasicCredentialsManager::certs_loaded) - return; - const std::string conf_path = Config::get("ca_file", ""); - std::vector<std::string> paths; - if (conf_path.empty()) - paths = default_cert_files; - else - paths.push_back(conf_path); - - if (BasicCredentialsManager::try_to_open_one_ca_bundle(paths)) - BasicCredentialsManager::certs_loaded = true; - else - log_warning("The CA could not be loaded, TLS negociation will probably fail."); -} - -std::vector<Botan::Certificate_Store*> BasicCredentialsManager::trusted_certificate_authorities(const std::string&, const std::string&) -{ - return {&this->certificate_store}; -} - -#endif diff --git a/louloulibs/network/credentials_manager.hpp b/louloulibs/network/credentials_manager.hpp deleted file mode 100644 index 9f42782..0000000 --- a/louloulibs/network/credentials_manager.hpp +++ /dev/null @@ -1,56 +0,0 @@ -#pragma once - -#include "louloulibs.h" - -#ifdef BOTAN_FOUND - -#include <botan/botan.h> -#include <botan/tls_client.h> -#include <botan/version.h> - -class TCPSocketHandler; - -/** - * If the given cert isn’t valid, based on the given hostname - * and fingerprint, then throws the exception if it’s non-empty. - * - * Must be called after the standard (from Botan) way of - * checking the certificate, if we want to also accept certificates based - * on a trusted fingerprint. - */ -void check_tls_certificate(const std::vector<Botan::X509_Certificate>& certs, - const std::string& hostname, const std::string& trusted_fingerprint, - std::exception_ptr exc); - -class BasicCredentialsManager: public Botan::Credentials_Manager -{ -public: - BasicCredentialsManager(const TCPSocketHandler* const socket_handler); - - BasicCredentialsManager(BasicCredentialsManager&&) = delete; - BasicCredentialsManager(const BasicCredentialsManager&) = delete; - BasicCredentialsManager& operator=(const BasicCredentialsManager&) = delete; - BasicCredentialsManager& operator=(BasicCredentialsManager&&) = delete; - -#if BOTAN_VERSION_CODE < BOTAN_VERSION_CODE_FOR(1,11,34) - void verify_certificate_chain(const std::string& type, - const std::string& purported_hostname, - const std::vector<Botan::X509_Certificate>&) override final; -#endif - std::vector<Botan::Certificate_Store*> trusted_certificate_authorities(const std::string& type, - const std::string& context) override final; - void set_trusted_fingerprint(const std::string& fingerprint); - const std::string& get_trusted_fingerprint() const; - -private: - const TCPSocketHandler* const socket_handler; - - static bool try_to_open_one_ca_bundle(const std::vector<std::string>& paths); - static void load_certs(); - static Botan::Certificate_Store_In_Memory certificate_store; - static bool certs_loaded; - std::string trusted_fingerprint; -}; - -#endif //BOTAN_FOUND - diff --git a/louloulibs/network/dns_handler.cpp b/louloulibs/network/dns_handler.cpp deleted file mode 100644 index fef0cfc..0000000 --- a/louloulibs/network/dns_handler.cpp +++ /dev/null @@ -1,130 +0,0 @@ -#include <louloulibs.h> -#ifdef CARES_FOUND - -#include <network/dns_socket_handler.hpp> -#include <network/dns_handler.hpp> -#include <network/poller.hpp> - -#include <utils/timed_events.hpp> - -#include <algorithm> -#include <stdexcept> - -DNSHandler DNSHandler::instance; - -using namespace std::string_literals; -DNSHandler::DNSHandler(): - socket_handlers{}, - channel{nullptr} -{ - int ares_error; - if ((ares_error = ::ares_library_init(ARES_LIB_INIT_ALL)) != 0) - throw std::runtime_error("Failed to initialize c-ares lib: "s + ares_strerror(ares_error)); - struct ares_options options = {}; - // The default timeout values are way too high - options.timeout = 1000; - options.tries = 3; - if ((ares_error = ::ares_init_options(&this->channel, - &options, - ARES_OPT_TIMEOUTMS|ARES_OPT_TRIES)) != ARES_SUCCESS) - throw std::runtime_error("Failed to initialize c-ares channel: "s + ares_strerror(ares_error)); -} - -ares_channel& DNSHandler::get_channel() -{ - return this->channel; -} - -void DNSHandler::destroy() -{ - this->remove_all_sockets_from_poller(); - this->socket_handlers.clear(); - ::ares_destroy(this->channel); - ::ares_library_cleanup(); -} - -void DNSHandler::gethostbyname(const std::string& name, ares_host_callback callback, - void* data, int family) -{ - ::ares_gethostbyname(this->channel, name.data(), family, - callback, data); -} - -void DNSHandler::watch_dns_sockets(std::shared_ptr<Poller>& poller) -{ - fd_set readers; - fd_set writers; - - FD_ZERO(&readers); - FD_ZERO(&writers); - - int ndfs = ::ares_fds(this->channel, &readers, &writers); - // For each existing DNS socket, see if we are still supposed to watch it, - // if not then erase it - this->socket_handlers.erase( - std::remove_if(this->socket_handlers.begin(), this->socket_handlers.end(), - [&readers](const auto& dns_socket) - { - return !FD_ISSET(dns_socket->get_socket(), &readers); - }), - this->socket_handlers.end()); - - for (auto i = 0; i < ndfs; ++i) - { - bool read = FD_ISSET(i, &readers); - bool write = FD_ISSET(i, &writers); - // Look for the DNSSocketHandler with this fd - auto it = std::find_if(this->socket_handlers.begin(), - this->socket_handlers.end(), - [i](const auto& socket_handler) - { - return i == socket_handler->get_socket(); - }); - if (!read && !write) // No need to read or write to it - { // If found, erase it and stop watching it because it is not - // needed anymore - if (it != this->socket_handlers.end()) - // The socket destructor removes it from the poller - this->socket_handlers.erase(it); - } - else // We need to write and/or read to it - { // If not found, create it because we need to watch it - if (it == this->socket_handlers.end()) - { - this->socket_handlers.emplace(this->socket_handlers.begin(), - std::make_unique<DNSSocketHandler>(poller, *this, i)); - it = this->socket_handlers.begin(); - } - poller->add_socket_handler(it->get()); - if (write) - poller->watch_send_events(it->get()); - } - } - // Cancel previous timer, if any. - TimedEventsManager::instance().cancel("DNS timeout"); - struct timeval tv; - struct timeval* tvp; - tvp = ::ares_timeout(this->channel, NULL, &tv); - if (tvp) - { - auto future_time = std::chrono::steady_clock::now() + std::chrono::seconds(tvp->tv_sec) + \ - std::chrono::microseconds(tvp->tv_usec); - TimedEventsManager::instance().add_event(TimedEvent(std::move(future_time), - [this]() - { - for (auto& dns_socket_handler: this->socket_handlers) - dns_socket_handler->on_recv(); - }, - "DNS timeout")); - } -} - -void DNSHandler::remove_all_sockets_from_poller() -{ - for (const auto& socket_handler: this->socket_handlers) - { - socket_handler->remove_from_poller(); - } -} - -#endif /* CARES_FOUND */ diff --git a/louloulibs/network/dns_handler.hpp b/louloulibs/network/dns_handler.hpp deleted file mode 100644 index fd1729d..0000000 --- a/louloulibs/network/dns_handler.hpp +++ /dev/null @@ -1,58 +0,0 @@ -#pragma once - -#include <louloulibs.h> -#ifdef CARES_FOUND - -class TCPSocketHandler; -class Poller; -class DNSSocketHandler; - -# include <ares.h> -# include <memory> -# include <string> -# include <vector> - -/** - * Class managing DNS resolution. It should only be statically instanciated - * once in SocketHandler. It manages ares channel and calls various - * functions of that library. - */ - -class DNSHandler -{ -public: - DNSHandler(); - ~DNSHandler() = default; - DNSHandler(const DNSHandler&) = delete; - DNSHandler(DNSHandler&&) = delete; - DNSHandler& operator=(const DNSHandler&) = delete; - DNSHandler& operator=(DNSHandler&&) = delete; - - void gethostbyname(const std::string& name, ares_host_callback callback, - void* socket_handler, int family); - /** - * Call ares_fds to know what fd needs to be watched by the poller, create - * or destroy DNSSocketHandlers depending on the result. - */ - void watch_dns_sockets(std::shared_ptr<Poller>& poller); - /** - * Destroy and stop watching all the DNS sockets. Then de-init the channel - * and library. - */ - void destroy(); - void remove_all_sockets_from_poller(); - ares_channel& get_channel(); - - static DNSHandler instance; - -private: - /** - * The list of sockets that needs to be watched, according to the last - * call to ares_fds. DNSSocketHandlers are added to it or removed from it - * in the watch_dns_sockets() method - */ - std::vector<std::unique_ptr<DNSSocketHandler>> socket_handlers; - ares_channel channel; -}; - -#endif /* CARES_FOUND */ diff --git a/louloulibs/network/dns_socket_handler.cpp b/louloulibs/network/dns_socket_handler.cpp deleted file mode 100644 index 403a5be..0000000 --- a/louloulibs/network/dns_socket_handler.cpp +++ /dev/null @@ -1,49 +0,0 @@ -#include <louloulibs.h> -#ifdef CARES_FOUND - -#include <network/dns_socket_handler.hpp> -#include <network/dns_handler.hpp> -#include <network/poller.hpp> - -#include <ares.h> - -DNSSocketHandler::DNSSocketHandler(std::shared_ptr<Poller> poller, - DNSHandler& handler, - const socket_t socket): - SocketHandler(poller, socket), - handler(handler) -{ -} - -void DNSSocketHandler::connect() -{ -} - -void DNSSocketHandler::on_recv() -{ - // always stop watching send and read events. We will re-watch them if the - // next call to ares_fds tell us to - this->handler.remove_all_sockets_from_poller(); - ::ares_process_fd(DNSHandler::instance.get_channel(), this->socket, ARES_SOCKET_BAD); -} - -void DNSSocketHandler::on_send() -{ - // always stop watching send and read events. We will re-watch them if the - // next call to ares_fds tell us to - this->handler.remove_all_sockets_from_poller(); - ::ares_process_fd(DNSHandler::instance.get_channel(), ARES_SOCKET_BAD, this->socket); -} - -bool DNSSocketHandler::is_connected() const -{ - return true; -} - -void DNSSocketHandler::remove_from_poller() -{ - if (this->poller->is_managing_socket(this->socket)) - this->poller->remove_socket_handler(this->socket); -} - -#endif /* CARES_FOUND */ diff --git a/louloulibs/network/dns_socket_handler.hpp b/louloulibs/network/dns_socket_handler.hpp deleted file mode 100644 index 0570196..0000000 --- a/louloulibs/network/dns_socket_handler.hpp +++ /dev/null @@ -1,49 +0,0 @@ -#pragma once - -#include <louloulibs.h> -#ifdef CARES_FOUND - -#include <network/socket_handler.hpp> -#include <ares.h> - -/** - * Manage a socket returned by ares_fds. We do not create, open or close the - * socket ourself: this is done by c-ares. We just call ares_process_fd() - * with the correct parameters, depending on what can be done on that socket - * (Poller reported it to be writable or readeable) - */ - -class DNSHandler; - -class DNSSocketHandler: public SocketHandler -{ -public: - explicit DNSSocketHandler(std::shared_ptr<Poller> poller, DNSHandler& handler, const socket_t socket); - ~DNSSocketHandler() = default; - DNSSocketHandler(const DNSSocketHandler&) = delete; - DNSSocketHandler(DNSSocketHandler&&) = delete; - DNSSocketHandler& operator=(const DNSSocketHandler&) = delete; - DNSSocketHandler& operator=(DNSSocketHandler&&) = delete; - - /** - * Just call dns_process_fd, c-ares will do its work of send()ing or - * recv()ing the data it wants on that socket. - */ - void on_recv() override final; - void on_send() override final; - /** - * Do nothing, because we are always considered to be connected, since the - * connection is done by c-ares and not by us. - */ - void connect() override final; - /** - * Always true, see the comment for connect() - */ - bool is_connected() const override final; - void remove_from_poller(); - -private: - DNSHandler& handler; -}; - -#endif // CARES_FOUND diff --git a/louloulibs/network/poller.cpp b/louloulibs/network/poller.cpp deleted file mode 100644 index 9f5bcfb..0000000 --- a/louloulibs/network/poller.cpp +++ /dev/null @@ -1,234 +0,0 @@ -#include <network/poller.hpp> -#include <logger/logger.hpp> -#include <utils/timed_events.hpp> - -#include <assert.h> -#include <errno.h> -#include <stdio.h> -#include <signal.h> -#include <unistd.h> - -#include <cstring> -#include <iostream> -#include <stdexcept> - -Poller::Poller() -{ -#if POLLER == POLL - this->nfds = 0; -#elif POLLER == EPOLL - this->epfd = ::epoll_create1(0); - if (this->epfd == -1) - { - log_error("epoll failed: ", strerror(errno)); - throw std::runtime_error("Could not create epoll instance"); - } -#endif -} - -Poller::~Poller() -{ -#if POLLER == EPOLL - if (this->epfd > 0) - ::close(this->epfd); -#endif -} - -void Poller::add_socket_handler(SocketHandler* socket_handler) -{ - // Don't do anything if the socket is already managed - const auto it = this->socket_handlers.find(socket_handler->get_socket()); - if (it != this->socket_handlers.end()) - return ; - - this->socket_handlers.emplace(socket_handler->get_socket(), socket_handler); - - // We always watch all sockets for receive events -#if POLLER == POLL - this->fds[this->nfds].fd = socket_handler->get_socket(); - this->fds[this->nfds].events = POLLIN; - this->nfds++; -#endif -#if POLLER == EPOLL - struct epoll_event event = {EPOLLIN, {socket_handler}}; - const int res = ::epoll_ctl(this->epfd, EPOLL_CTL_ADD, socket_handler->get_socket(), &event); - if (res == -1) - { - log_error("epoll_ctl failed: ", strerror(errno)); - throw std::runtime_error("Could not add socket to epoll"); - } -#endif -} - -void Poller::remove_socket_handler(const socket_t socket) -{ - const auto it = this->socket_handlers.find(socket); - if (it == this->socket_handlers.end()) - throw std::runtime_error("Trying to remove a SocketHandler that is not managed"); - this->socket_handlers.erase(it); - -#if POLLER == POLL - for (size_t i = 0; i < this->nfds; i++) - { - if (this->fds[i].fd == socket) - { - // Move all subsequent pollfd by one on the left, erasing the - // value of the one we remove - for (size_t j = i; j < this->nfds - 1; ++j) - { - this->fds[j].fd = this->fds[j+1].fd; - this->fds[j].events= this->fds[j+1].events; - } - this->nfds--; - } - } -#elif POLLER == EPOLL - const int res = ::epoll_ctl(this->epfd, EPOLL_CTL_DEL, socket, nullptr); - if (res == -1) - { - log_error("epoll_ctl failed: ", strerror(errno)); - throw std::runtime_error("Could not remove socket from epoll"); - } -#endif -} - -void Poller::watch_send_events(SocketHandler* socket_handler) -{ -#if POLLER == POLL - for (size_t i = 0; i < this->nfds; ++i) - { - if (this->fds[i].fd == socket_handler->get_socket()) - { - this->fds[i].events = POLLIN|POLLOUT; - return; - } - } - throw std::runtime_error("Cannot watch a non-registered socket for send events"); -#elif POLLER == EPOLL - struct epoll_event event = {EPOLLIN|EPOLLOUT, {socket_handler}}; - const int res = ::epoll_ctl(this->epfd, EPOLL_CTL_MOD, socket_handler->get_socket(), &event); - if (res == -1) - { - log_error("epoll_ctl failed: ", strerror(errno)); - throw std::runtime_error("Could not modify socket flags in epoll"); - } -#endif -} - -void Poller::stop_watching_send_events(SocketHandler* socket_handler) -{ -#if POLLER == POLL - for (size_t i = 0; i <= this->nfds; ++i) - { - if (this->fds[i].fd == socket_handler->get_socket()) - { - this->fds[i].events = POLLIN; - return; - } - } - throw std::runtime_error("Cannot watch a non-registered socket for send events"); -#elif POLLER == EPOLL - struct epoll_event event = {EPOLLIN, {socket_handler}}; - const int res = ::epoll_ctl(this->epfd, EPOLL_CTL_MOD, socket_handler->get_socket(), &event); - if (res == -1) - { - log_error("epoll_ctl failed: ", strerror(errno)); - throw std::runtime_error("Could not modify socket flags in epoll"); - } -#endif -} - -int Poller::poll(const std::chrono::milliseconds& timeout) -{ - if (this->socket_handlers.empty() && timeout == utils::no_timeout) - return -1; -#if POLLER == POLL - // Convert our nice timeout into this ugly struct - struct timespec timeout_ts; - struct timespec* timeout_tsp; - if (timeout > 0s) - { - auto seconds = std::chrono::duration_cast<std::chrono::seconds>(timeout); - timeout_ts.tv_sec = seconds.count(); - timeout_ts.tv_nsec = std::chrono::duration_cast<std::chrono::nanoseconds>(timeout - seconds).count(); - timeout_tsp = &timeout_ts; - } - else - timeout_tsp = nullptr; - - // Unblock all signals, only during the ppoll call - sigset_t empty_signal_set; - sigemptyset(&empty_signal_set); - int nb_events = ::ppoll(this->fds, this->nfds, timeout_tsp, - &empty_signal_set); - if (nb_events < 0) - { - if (errno == EINTR) - return true; - log_error("poll failed: ", strerror(errno)); - throw std::runtime_error("Poll failed"); - } - // We cannot possibly have more ready events than the number of fds we are - // watching - assert(static_cast<unsigned int>(nb_events) <= this->nfds); - for (size_t i = 0; i < this->nfds && nb_events != 0; ++i) - { - auto socket_handler = this->socket_handlers.at(this->fds[i].fd); - if (this->fds[i].revents == 0) - continue; - else if (this->fds[i].revents & POLLIN && socket_handler->is_connected()) - { - socket_handler->on_recv(); - nb_events--; - } - else if (this->fds[i].revents & POLLOUT && socket_handler->is_connected()) - { - socket_handler->on_send(); - nb_events--; - } - else if (this->fds[i].revents & POLLOUT || - this->fds[i].revents & POLLIN) - { - socket_handler->connect(); - nb_events--; - } - } - return 1; -#elif POLLER == EPOLL - static const size_t max_events = 12; - struct epoll_event revents[max_events]; - // Unblock all signals, only during the epoll_pwait call - sigset_t empty_signal_set; - sigemptyset(&empty_signal_set); - const int nb_events = ::epoll_pwait(this->epfd, revents, max_events, timeout.count(), - &empty_signal_set); - if (nb_events == -1) - { - if (errno == EINTR) - return 0; - log_error("epoll wait: ", strerror(errno)); - throw std::runtime_error("Epoll_wait failed"); - } - for (int i = 0; i < nb_events; ++i) - { - auto socket_handler = static_cast<SocketHandler*>(revents[i].data.ptr); - if (revents[i].events & EPOLLIN && socket_handler->is_connected()) - socket_handler->on_recv(); - else if (revents[i].events & EPOLLOUT && socket_handler->is_connected()) - socket_handler->on_send(); - else if (revents[i].events & EPOLLOUT) - socket_handler->connect(); - } - return nb_events; -#endif -} - -size_t Poller::size() const -{ - return this->socket_handlers.size(); -} - -bool Poller::is_managing_socket(const socket_t socket) const -{ - return (this->socket_handlers.find(socket) != this->socket_handlers.end()); -} diff --git a/louloulibs/network/poller.hpp b/louloulibs/network/poller.hpp deleted file mode 100644 index e39e438..0000000 --- a/louloulibs/network/poller.hpp +++ /dev/null @@ -1,98 +0,0 @@ -#pragma once - - -#include <network/socket_handler.hpp> - -#include <unordered_map> -#include <memory> -#include <chrono> - -#define POLL 1 -#define EPOLL 2 -#define KQUEUE 3 -#include <louloulibs.h> -#ifndef POLLER - #define POLLER POLL -#endif - -#if POLLER == POLL - #include <poll.h> - #define MAX_POLL_FD_NUMBER 4096 -#elif POLLER == EPOLL - #include <sys/epoll.h> -#else - #error Invalid POLLER value -#endif - -/** - * We pass some SocketHandlers to this Poller, which uses - * poll/epoll/kqueue/select etc to wait for events on these SocketHandlers, - * and call the callbacks when event occurs. - * - * TODO: support these pollers: - * - kqueue(2) - */ - -class Poller -{ -public: - explicit Poller(); - ~Poller(); - Poller(const Poller&) = delete; - Poller(Poller&&) = delete; - Poller& operator=(const Poller&) = delete; - Poller& operator=(Poller&&) = delete; - /** - * Add a SocketHandler to be monitored by this Poller. All receive events - * are always automatically watched. - */ - void add_socket_handler(SocketHandler* socket_handler); - /** - * Remove (and stop managing) a SocketHandler, designated by the given socket_t. - */ - void remove_socket_handler(const socket_t socket); - /** - * Signal the poller that he needs to watch for send events for the given - * SocketHandler. - */ - void watch_send_events(SocketHandler* socket_handler); - /** - * Signal the poller that he needs to stop watching for send events for - * this SocketHandler. - */ - void stop_watching_send_events(SocketHandler* socket_handler); - /** - * Wait for all watched events, and call the SocketHandlers' callbacks - * when one is ready. Returns if nothing happened before the provided - * timeout. If the timeout is 0, it waits forever. If there is no - * watched event, returns -1 immediately, ignoring the timeout value. - * Otherwise, returns the number of event handled. If 0 is returned this - * means that we were interrupted by a signal, or the timeout occured. - */ - int poll(const std::chrono::milliseconds& timeout); - /** - * Returns the number of SocketHandlers managed by the poller. - */ - size_t size() const; - /** - * Whether the given socket is managed by the poller - */ - bool is_managing_socket(const socket_t socket) const; - -private: - /** - * A "list" of all the SocketHandlers that we manage, indexed by socket, - * because that's what is returned by select/poll/etc when an event - * occures. - */ - std::unordered_map<socket_t, SocketHandler*> socket_handlers; - -#if POLLER == POLL - struct pollfd fds[MAX_POLL_FD_NUMBER]; - nfds_t nfds; -#elif POLLER == EPOLL - int epfd; -#endif -}; - - diff --git a/louloulibs/network/resolver.cpp b/louloulibs/network/resolver.cpp deleted file mode 100644 index 2987aaa..0000000 --- a/louloulibs/network/resolver.cpp +++ /dev/null @@ -1,216 +0,0 @@ -#include <network/dns_handler.hpp> -#include <network/resolver.hpp> -#include <string.h> -#include <arpa/inet.h> -#include <cstdlib> - -using namespace std::string_literals; - -Resolver::Resolver(): -#ifdef CARES_FOUND - resolved4(false), - resolved6(false), - resolving(false), - cares_addrinfo(nullptr), - port{}, -#endif - resolved(false), - error_msg{} -{ -} - -void Resolver::resolve(const std::string& hostname, const std::string& port, - SuccessCallbackType success_cb, ErrorCallbackType error_cb) -{ - this->error_cb = error_cb; - this->success_cb = success_cb; -#ifdef CARES_FOUND - this->port = port; -#endif - - this->start_resolving(hostname, port); -} - -#ifdef CARES_FOUND -void Resolver::start_resolving(const std::string& hostname, const std::string&) -{ - this->resolving = true; - this->resolved = false; - this->resolved4 = false; - this->resolved6 = false; - - this->error_msg.clear(); - this->cares_addrinfo = nullptr; - - auto hostname4_resolved = [](void* arg, int status, int, - struct hostent* hostent) - { - Resolver* resolver = static_cast<Resolver*>(arg); - resolver->on_hostname4_resolved(status, hostent); - }; - auto hostname6_resolved = [](void* arg, int status, int, - struct hostent* hostent) - { - Resolver* resolver = static_cast<Resolver*>(arg); - resolver->on_hostname6_resolved(status, hostent); - }; - - DNSHandler::instance.gethostbyname(hostname, hostname6_resolved, - this, AF_INET6); - DNSHandler::instance.gethostbyname(hostname, hostname4_resolved, - this, AF_INET); -} - -void Resolver::on_hostname4_resolved(int status, struct hostent* hostent) -{ - this->resolved4 = true; - if (status == ARES_SUCCESS) - this->fill_ares_addrinfo4(hostent); - else - this->error_msg = ::ares_strerror(status); - - if (this->resolved4 && this->resolved6) - this->on_resolved(); -} - -void Resolver::on_hostname6_resolved(int status, struct hostent* hostent) -{ - this->resolved6 = true; - if (status == ARES_SUCCESS) - this->fill_ares_addrinfo6(hostent); - else - this->error_msg = ::ares_strerror(status); - - if (this->resolved4 && this->resolved6) - this->on_resolved(); -} - -void Resolver::on_resolved() -{ - this->resolved = true; - this->resolving = false; - if (!this->cares_addrinfo) - { - if (this->error_cb) - this->error_cb(this->error_msg.data()); - } - else - { - this->addr.reset(this->cares_addrinfo); - if (this->success_cb) - this->success_cb(this->addr.get()); - } -} - -void Resolver::fill_ares_addrinfo4(const struct hostent* hostent) -{ - struct addrinfo* prev = this->cares_addrinfo; - struct in_addr** address = reinterpret_cast<struct in_addr**>(hostent->h_addr_list); - - while (*address) - { - // Create a new addrinfo list element, and fill it - struct addrinfo* current = new struct addrinfo; - current->ai_flags = 0; - current->ai_family = hostent->h_addrtype; - current->ai_socktype = SOCK_STREAM; - current->ai_protocol = 0; - current->ai_addrlen = sizeof(struct sockaddr_in); - - struct sockaddr_in* ai_addr = new struct sockaddr_in; - - ai_addr->sin_family = hostent->h_addrtype; - ai_addr->sin_port = htons(std::strtoul(this->port.data(), nullptr, 10)); - ai_addr->sin_addr.s_addr = (*address)->s_addr; - - current->ai_addr = reinterpret_cast<struct sockaddr*>(ai_addr); - current->ai_next = nullptr; - current->ai_canonname = nullptr; - - current->ai_next = prev; - this->cares_addrinfo = current; - prev = current; - ++address; - } -} - -void Resolver::fill_ares_addrinfo6(const struct hostent* hostent) -{ - struct addrinfo* prev = this->cares_addrinfo; - struct in6_addr** address = reinterpret_cast<struct in6_addr**>(hostent->h_addr_list); - - while (*address) - { - // Create a new addrinfo list element, and fill it - struct addrinfo* current = new struct addrinfo; - current->ai_flags = 0; - current->ai_family = hostent->h_addrtype; - current->ai_socktype = SOCK_STREAM; - current->ai_protocol = 0; - current->ai_addrlen = sizeof(struct sockaddr_in6); - - struct sockaddr_in6* ai_addr = new struct sockaddr_in6; - ai_addr->sin6_family = hostent->h_addrtype; - ai_addr->sin6_port = htons(std::strtoul(this->port.data(), nullptr, 10)); - ::memcpy(ai_addr->sin6_addr.s6_addr, (*address)->s6_addr, sizeof(ai_addr->sin6_addr.s6_addr)); - ai_addr->sin6_flowinfo = 0; - ai_addr->sin6_scope_id = 0; - - current->ai_addr = reinterpret_cast<struct sockaddr*>(ai_addr); - current->ai_canonname = nullptr; - - current->ai_next = prev; - this->cares_addrinfo = current; - prev = current; - ++address; - } -} - -#else // ifdef CARES_FOUND - -void Resolver::start_resolving(const std::string& hostname, const std::string& port) -{ - // If the resolution fails, the addr will be unset - this->addr.reset(nullptr); - - struct addrinfo hints; - memset(&hints, 0, sizeof(struct addrinfo)); - hints.ai_flags = 0; - hints.ai_family = AF_UNSPEC; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = 0; - - struct addrinfo* addr_res = nullptr; - const int res = ::getaddrinfo(hostname.data(), port.data(), - &hints, &addr_res); - - this->resolved = true; - - if (res != 0) - { - this->error_msg = gai_strerror(res); - if (this->error_cb) - this->error_cb(this->error_msg.data()); - } - else - { - this->addr.reset(addr_res); - if (this->success_cb) - this->success_cb(this->addr.get()); - } -} -#endif // ifdef CARES_FOUND - -std::string addr_to_string(const struct addrinfo* rp) -{ - char buf[INET6_ADDRSTRLEN]; - if (rp->ai_family == AF_INET) - return ::inet_ntop(rp->ai_family, - &reinterpret_cast<sockaddr_in*>(rp->ai_addr)->sin_addr, - buf, sizeof(buf)); - else if (rp->ai_family == AF_INET6) - return ::inet_ntop(rp->ai_family, - &reinterpret_cast<sockaddr_in6*>(rp->ai_addr)->sin6_addr, - buf, sizeof(buf)); - return {}; -} diff --git a/louloulibs/network/resolver.hpp b/louloulibs/network/resolver.hpp deleted file mode 100644 index 29e6f3a..0000000 --- a/louloulibs/network/resolver.hpp +++ /dev/null @@ -1,129 +0,0 @@ -#pragma once - - -#include "louloulibs.h" - -#include <functional> -#include <memory> -#include <string> - -#include <sys/types.h> -#include <sys/socket.h> -#include <netdb.h> - -class AddrinfoDeleter -{ - public: - void operator()(struct addrinfo* addr) - { -#ifdef CARES_FOUND - while (addr) - { - delete addr->ai_addr; - auto next = addr->ai_next; - delete addr; - addr = next; - } -#else - freeaddrinfo(addr); -#endif - } -}; - -class Resolver -{ -public: - using ErrorCallbackType = std::function<void(const char*)>; - using SuccessCallbackType = std::function<void(const struct addrinfo*)>; - - Resolver(); - ~Resolver() = default; - Resolver(const Resolver&) = delete; - Resolver(Resolver&&) = delete; - Resolver& operator=(const Resolver&) = delete; - Resolver& operator=(Resolver&&) = delete; - - bool is_resolving() const - { -#ifdef CARES_FOUND - return this->resolving; -#else - return false; -#endif - } - - bool is_resolved() const - { - return this->resolved; - } - - const auto& get_result() const - { - return this->addr; - } - std::string get_error_message() const - { - return this->error_msg; - } - - void clear() - { -#ifdef CARES_FOUND - this->resolved6 = false; - this->resolved4 = false; - this->resolving = false; - this->cares_addrinfo = nullptr; - this->port.clear(); -#endif - this->resolved = false; - this->addr.reset(); - this->error_msg.clear(); - } - - void resolve(const std::string& hostname, const std::string& port, - SuccessCallbackType success_cb, ErrorCallbackType error_cb); - -private: - void start_resolving(const std::string& hostname, const std::string& port); -#ifdef CARES_FOUND - void on_hostname4_resolved(int status, struct hostent* hostent); - void on_hostname6_resolved(int status, struct hostent* hostent); - - void fill_ares_addrinfo4(const struct hostent* hostent); - void fill_ares_addrinfo6(const struct hostent* hostent); - - void on_resolved(); - - bool resolved4; - bool resolved6; - - bool resolving; - - /** - * When using c-ares to resolve the host asynchronously, we need the - * c-ares callbacks to fill a structure (a struct addrinfo, for - * compatibility with getaddrinfo and the rest of the code that works when - * c-ares is not used) with all returned values (for example an IPv6 and - * an IPv4). The pointer is given to the unique_ptr to manage its lifetime. - */ - struct addrinfo* cares_addrinfo; - std::string port; - -#endif - /** - * Tells if we finished the resolution process. It doesn't indicate if it - * was successful (it is true even if the result is an error). - */ - bool resolved; - std::string error_msg; - - - std::unique_ptr<struct addrinfo, AddrinfoDeleter> addr; - - ErrorCallbackType error_cb; - SuccessCallbackType success_cb; -}; - -std::string addr_to_string(const struct addrinfo* rp); - - diff --git a/louloulibs/network/socket_handler.hpp b/louloulibs/network/socket_handler.hpp deleted file mode 100644 index ea79a18..0000000 --- a/louloulibs/network/socket_handler.hpp +++ /dev/null @@ -1,42 +0,0 @@ -#pragma once - -#include <louloulibs.h> -#include <memory> - -class Poller; - -using socket_t = int; - -class SocketHandler -{ -public: - explicit SocketHandler(std::shared_ptr<Poller> poller, const socket_t socket): - poller(poller), - socket(socket) - {} - virtual ~SocketHandler() = default; - SocketHandler(const SocketHandler&) = delete; - SocketHandler(SocketHandler&&) = delete; - SocketHandler& operator=(const SocketHandler&) = delete; - SocketHandler& operator=(SocketHandler&&) = delete; - - virtual void on_recv() = 0; - virtual void on_send() = 0; - virtual void connect() = 0; - virtual bool is_connected() const = 0; - - socket_t get_socket() const - { return this->socket; } - -protected: - /** - * A pointer to the poller that manages us, because we need to communicate - * with it. - */ - std::shared_ptr<Poller> poller; - /** - * The handled socket. - */ - socket_t socket; -}; - diff --git a/louloulibs/network/tcp_socket_handler.cpp b/louloulibs/network/tcp_socket_handler.cpp deleted file mode 100644 index d9ec226..0000000 --- a/louloulibs/network/tcp_socket_handler.cpp +++ /dev/null @@ -1,542 +0,0 @@ -#include <network/tcp_socket_handler.hpp> -#include <network/dns_handler.hpp> - -#include <utils/timed_events.hpp> -#include <utils/scopeguard.hpp> -#include <network/poller.hpp> - -#include <logger/logger.hpp> -#include <sys/socket.h> -#include <sys/types.h> -#include <stdexcept> -#include <unistd.h> -#include <errno.h> -#include <cstring> -#include <fcntl.h> - -#ifdef BOTAN_FOUND -# include <botan/hex.h> -# include <botan/tls_exceptn.h> - -Botan::AutoSeeded_RNG TCPSocketHandler::rng; -Botan::TLS::Policy TCPSocketHandler::policy; -Botan::TLS::Session_Manager_In_Memory TCPSocketHandler::session_manager(TCPSocketHandler::rng); - -#endif - -#ifndef UIO_FASTIOV -# define UIO_FASTIOV 8 -#endif - -using namespace std::string_literals; -using namespace std::chrono_literals; - -namespace ph = std::placeholders; - -TCPSocketHandler::TCPSocketHandler(std::shared_ptr<Poller> poller): - SocketHandler(poller, -1), - use_tls(false), - connected(false), - connecting(false), - hostname_resolution_failed(false) -#ifdef BOTAN_FOUND - ,credential_manager(this) -#endif -{} - -TCPSocketHandler::~TCPSocketHandler() -{ - this->close(); -} - - -void TCPSocketHandler::init_socket(const struct addrinfo* rp) -{ - if (this->socket != -1) - ::close(this->socket); - if ((this->socket = ::socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol)) == -1) - throw std::runtime_error("Could not create socket: "s + strerror(errno)); - // Bind the socket to a specific address, if specified - if (!this->bind_addr.empty()) - { - // Convert the address from string format to a sockaddr that can be - // used in bind() - struct addrinfo* result; - int err = ::getaddrinfo(this->bind_addr.data(), nullptr, nullptr, &result); - if (err != 0 || !result) - log_error("Failed to bind socket to ", this->bind_addr, ": ", - gai_strerror(err)); - else - { - utils::ScopeGuard sg([result](){ freeaddrinfo(result); }); - struct addrinfo* rp; - int bind_error = 0; - for (rp = result; rp; rp = rp->ai_next) - { - if ((bind_error = ::bind(this->socket, - reinterpret_cast<const struct sockaddr*>(rp->ai_addr), - rp->ai_addrlen)) == 0) - break; - } - if (!rp) - log_error("Failed to bind socket to ", this->bind_addr, ": ", - strerror(errno)); - else - log_info("Socket successfully bound to ", this->bind_addr); - } - } - int optval = 1; - if (::setsockopt(this->socket, SOL_SOCKET, SO_KEEPALIVE, &optval, sizeof(optval)) == -1) - log_warning("Failed to enable TCP keepalive on socket: ", strerror(errno)); - // Set the socket on non-blocking mode. This is useful to receive a EAGAIN - // error when connect() would block, to not block the whole process if a - // remote is not responsive. - const int existing_flags = ::fcntl(this->socket, F_GETFL, 0); - if ((existing_flags == -1) || - (::fcntl(this->socket, F_SETFL, existing_flags | O_NONBLOCK) == -1)) - throw std::runtime_error("Could not initialize socket: "s + strerror(errno)); -} - -void TCPSocketHandler::connect(const std::string& address, const std::string& port, const bool tls) -{ - this->address = address; - this->port = port; - this->use_tls = tls; - - struct addrinfo* addr_res; - - if (!this->connecting) - { - // Get the addrinfo from getaddrinfo (or ares_gethostbyname), only if - // this is the first call of this function. - if (!this->resolver.is_resolved()) - { - log_info("Trying to connect to ", address, ":", port); - // Start the asynchronous process of resolving the hostname. Once - // the addresses have been found and `resolved` has been set to true - // (but connecting will still be false), TCPSocketHandler::connect() - // needs to be called, again. - this->resolver.resolve(address, port, - [this](const struct addrinfo*) - { - log_debug("Resolution success, calling connect() again"); - this->connect(); - }, - [this](const char*) - { - log_debug("Resolution failed, calling connect() again"); - this->connect(); - }); - return; - } - else - { - // The c-ares resolved the hostname and the available addresses - // where saved in the cares_addrinfo linked list. Now, just use - // this list to try to connect. - addr_res = this->resolver.get_result().get(); - if (!addr_res) - { - this->hostname_resolution_failed = true; - const auto msg = this->resolver.get_error_message(); - this->close(); - this->on_connection_failed(msg); - return ; - } - } - } - else - { // This function is called again, use the saved addrinfo structure, - // instead of re-doing the whole getaddrinfo process. - addr_res = &this->addrinfo; - } - - for (struct addrinfo* rp = addr_res; rp; rp = rp->ai_next) - { - if (!this->connecting) - { - try { - this->init_socket(rp); - } - catch (const std::runtime_error& error) { - log_error("Failed to init socket: ", error.what()); - break; - } - } - - this->display_resolved_ip(rp); - - if (::connect(this->socket, rp->ai_addr, rp->ai_addrlen) == 0 - || errno == EISCONN) - { - log_info("Connection success."); - TimedEventsManager::instance().cancel("connection_timeout"s + - std::to_string(this->socket)); - this->poller->add_socket_handler(this); - this->connected = true; - this->connecting = false; -#ifdef BOTAN_FOUND - if (this->use_tls) - this->start_tls(); -#endif - this->connection_date = std::chrono::system_clock::now(); - - this->on_connected(); - return ; - } - else if (errno == EINPROGRESS || errno == EALREADY) - { // retry this process later, when the socket - // is ready to be written on. - this->connecting = true; - this->poller->add_socket_handler(this); - this->poller->watch_send_events(this); - // Save the addrinfo structure, to use it on the next call - this->ai_addrlen = rp->ai_addrlen; - memcpy(&this->ai_addr, rp->ai_addr, this->ai_addrlen); - memcpy(&this->addrinfo, rp, sizeof(struct addrinfo)); - this->addrinfo.ai_addr = reinterpret_cast<struct sockaddr*>(&this->ai_addr); - this->addrinfo.ai_next = nullptr; - // If the connection has not succeeded or failed in 5s, we consider - // it to have failed - TimedEventsManager::instance().add_event( - TimedEvent(std::chrono::steady_clock::now() + 5s, - std::bind(&TCPSocketHandler::on_connection_timeout, this), - "connection_timeout"s + std::to_string(this->socket))); - return ; - } - log_info("Connection failed:", strerror(errno)); - } - log_error("All connection attempts failed."); - this->close(); - this->on_connection_failed(strerror(errno)); - return ; -} - -void TCPSocketHandler::on_connection_timeout() -{ - this->close(); - this->on_connection_failed("connection timed out"); -} - -void TCPSocketHandler::connect() -{ - this->connect(this->address, this->port, this->use_tls); -} - -void TCPSocketHandler::on_recv() -{ -#ifdef BOTAN_FOUND - if (this->use_tls) - this->tls_recv(); - else -#endif - this->plain_recv(); -} - -void TCPSocketHandler::plain_recv() -{ - static constexpr size_t buf_size = 4096; - char buf[buf_size]; - void* recv_buf = this->get_receive_buffer(buf_size); - - if (recv_buf == nullptr) - recv_buf = buf; - - const ssize_t size = this->do_recv(recv_buf, buf_size); - - if (size > 0) - { - if (buf == recv_buf) - { - // data needs to be placed in the in_buf string, because no buffer - // was provided to receive that data directly. The in_buf buffer - // will be handled in parse_in_buffer() - this->in_buf += std::string(buf, size); - } - this->parse_in_buffer(size); - } -} - -ssize_t TCPSocketHandler::do_recv(void* recv_buf, const size_t buf_size) -{ - ssize_t size = ::recv(this->socket, recv_buf, buf_size, 0); - if (0 == size) - { - this->on_connection_close(""); - this->close(); - } - else if (-1 == size) - { - if (this->connecting) - log_warning("Error connecting: ", strerror(errno)); - else - log_warning("Error while reading from socket: ", strerror(errno)); - // Remember if we were connecting, or already connected when this - // happened, because close() sets this->connecting to false - const auto were_connecting = this->connecting; - this->close(); - if (were_connecting) - this->on_connection_failed(strerror(errno)); - else - this->on_connection_close(strerror(errno)); - } - return size; -} - -void TCPSocketHandler::on_send() -{ - struct iovec msg_iov[UIO_FASTIOV] = {}; - struct msghdr msg{nullptr, 0, - msg_iov, - 0, nullptr, 0, 0}; - for (const std::string& s: this->out_buf) - { - // unconsting the content of s is ok, sendmsg will never modify it - msg_iov[msg.msg_iovlen].iov_base = const_cast<char*>(s.data()); - msg_iov[msg.msg_iovlen].iov_len = s.size(); - msg.msg_iovlen++; - if (msg.msg_iovlen == UIO_FASTIOV) - break; - } - ssize_t res = ::sendmsg(this->socket, &msg, MSG_NOSIGNAL); - if (res < 0) - { - log_error("sendmsg failed: ", strerror(errno)); - this->on_connection_close(strerror(errno)); - this->close(); - } - else - { - // remove all the strings that were successfully sent. - auto it = this->out_buf.begin(); - while (it != this->out_buf.end()) - { - if (static_cast<size_t>(res) >= it->size()) - { - res -= it->size(); - ++it; - } - else - { - // If one string has partially been sent, we use substr to - // crop it - if (res > 0) - *it = it->substr(res, std::string::npos); - break; - } - } - this->out_buf.erase(this->out_buf.begin(), it); - if (this->out_buf.empty()) - this->poller->stop_watching_send_events(this); - } -} - -void TCPSocketHandler::close() -{ - TimedEventsManager::instance().cancel("connection_timeout"s + - std::to_string(this->socket)); - if (this->connected || this->connecting) - this->poller->remove_socket_handler(this->get_socket()); - if (this->socket != -1) - { - ::close(this->socket); - this->socket = -1; - } - this->connected = false; - this->connecting = false; - this->in_buf.clear(); - this->out_buf.clear(); - this->port.clear(); - this->resolver.clear(); -} - -void TCPSocketHandler::display_resolved_ip(struct addrinfo* rp) const -{ - if (rp->ai_family == AF_INET) - log_debug("Trying IPv4 address ", addr_to_string(rp)); - else if (rp->ai_family == AF_INET6) - log_debug("Trying IPv6 address ", addr_to_string(rp)); -} - -void TCPSocketHandler::send_data(std::string&& data) -{ -#ifdef BOTAN_FOUND - if (this->use_tls) - try { - this->tls_send(std::move(data)); - } catch (const Botan::TLS::TLS_Exception& e) { - this->on_connection_close("TLS error: "s + e.what()); - this->close(); - return ; - } - else -#endif - this->raw_send(std::move(data)); -} - -void TCPSocketHandler::raw_send(std::string&& data) -{ - if (data.empty()) - return ; - this->out_buf.emplace_back(std::move(data)); - if (this->connected) - this->poller->watch_send_events(this); -} - -void TCPSocketHandler::send_pending_data() -{ - if (this->connected && !this->out_buf.empty()) - this->poller->watch_send_events(this); -} - -bool TCPSocketHandler::is_connected() const -{ - return this->connected; -} - -bool TCPSocketHandler::is_connecting() const -{ - return this->connecting || this->resolver.is_resolving(); -} - -bool TCPSocketHandler::is_using_tls() const -{ - return this->use_tls; -} - -std::string TCPSocketHandler::get_port() const -{ - return this->port; -} - -void* TCPSocketHandler::get_receive_buffer(const size_t) const -{ - return nullptr; -} - -#ifdef BOTAN_FOUND -void TCPSocketHandler::start_tls() -{ - Botan::TLS::Server_Information server_info(this->address, "irc", std::stoul(this->port)); - this->tls = std::make_unique<Botan::TLS::Client>( -# if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,32) - *this, -# else - [this](const Botan::byte* data, size_t size) { this->tls_emit_data(data, size); }, - [this](const Botan::byte* data, size_t size) { this->tls_record_received(0, data, size); }, - [this](Botan::TLS::Alert alert, const Botan::byte*, size_t) { this->tls_alert(alert); }, - [this](const Botan::TLS::Session& session) { return this->tls_session_established(session); }, -# endif - session_manager, this->credential_manager, policy, - rng, server_info, Botan::TLS::Protocol_Version::latest_tls_version()); -} - -void TCPSocketHandler::tls_recv() -{ - static constexpr size_t buf_size = 4096; - Botan::byte recv_buf[buf_size]; - - const ssize_t size = this->do_recv(recv_buf, buf_size); - if (size > 0) - { - const bool was_active = this->tls->is_active(); - try { - this->tls->received_data(recv_buf, static_cast<size_t>(size)); - } catch (const Botan::TLS::TLS_Exception& e) { - // May happen if the server sends malformed TLS data (buggy server, - // or more probably we are just connected to a server that sends - // plain-text) - this->on_connection_close("TLS error: "s + e.what()); - this->close(); - return ; - } - if (!was_active && this->tls->is_active()) - this->on_tls_activated(); - } -} - -void TCPSocketHandler::tls_send(std::string&& data) -{ - // We may not be connected yet, or the tls session has - // not yet been negociated - if (this->tls && this->tls->is_active()) - { - const bool was_active = this->tls->is_active(); - if (!this->pre_buf.empty()) - { - this->tls->send(this->pre_buf.data(), this->pre_buf.size()); - this->pre_buf.clear(); - } - if (!data.empty()) - this->tls->send(reinterpret_cast<const Botan::byte*>(data.data()), - data.size()); - if (!was_active && this->tls->is_active()) - this->on_tls_activated(); - } - else - this->pre_buf.insert(this->pre_buf.end(), - std::make_move_iterator(data.begin()), - std::make_move_iterator(data.end())); -} - -void TCPSocketHandler::tls_record_received(uint64_t, const Botan::byte *data, size_t size) -{ - this->in_buf += std::string(reinterpret_cast<const char*>(data), - size); - if (!this->in_buf.empty()) - this->parse_in_buffer(size); -} - -void TCPSocketHandler::tls_emit_data(const Botan::byte *data, size_t size) -{ - this->raw_send(std::string(reinterpret_cast<const char*>(data), size)); -} - -void TCPSocketHandler::tls_alert(Botan::TLS::Alert alert) -{ - log_debug("tls_alert: ", alert.type_string()); -} - -bool TCPSocketHandler::tls_session_established(const Botan::TLS::Session& session) -{ - log_debug("Handshake with ", session.server_info().hostname(), " complete.", - " Version: ", session.version().to_string(), - " using ", session.ciphersuite().to_string()); - if (!session.session_id().empty()) - log_debug("Session ID ", Botan::hex_encode(session.session_id())); - if (!session.session_ticket().empty()) - log_debug("Session ticket ", Botan::hex_encode(session.session_ticket())); - return true; -} - -#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,34) -void TCPSocketHandler::tls_verify_cert_chain(const std::vector<Botan::X509_Certificate>& cert_chain, - const std::vector<std::shared_ptr<const Botan::OCSP::Response>>& ocsp_responses, - const std::vector<Botan::Certificate_Store*>& trusted_roots, - Botan::Usage_Type usage, const std::string& hostname, - const Botan::TLS::Policy& policy) -{ - log_debug("Checking remote certificate for hostname ", hostname); - try - { - Botan::TLS::Callbacks::tls_verify_cert_chain(cert_chain, ocsp_responses, trusted_roots, usage, hostname, policy); - log_debug("Certificate is valid"); - } - catch (const std::exception& tls_exception) - { - log_warning("TLS certificate check failed: ", tls_exception.what()); - std::exception_ptr exception_ptr{}; - if (this->abort_on_invalid_cert()) - exception_ptr = std::current_exception(); - - check_tls_certificate(cert_chain, hostname, this->credential_manager.get_trusted_fingerprint(), exception_ptr); - } -} -#endif - -void TCPSocketHandler::on_tls_activated() -{ - this->send_data({}); -} - -#endif // BOTAN_FOUND diff --git a/louloulibs/network/tcp_socket_handler.hpp b/louloulibs/network/tcp_socket_handler.hpp deleted file mode 100644 index c850f43..0000000 --- a/louloulibs/network/tcp_socket_handler.hpp +++ /dev/null @@ -1,310 +0,0 @@ -#pragma once - - -#include "louloulibs.h" - -#include <network/socket_handler.hpp> -#include <network/resolver.hpp> - -#include <network/credentials_manager.hpp> - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <netdb.h> - -#include <chrono> -#include <vector> -#include <memory> -#include <string> -#include <list> - -#ifdef BOTAN_FOUND -#include <botan/version.h> - -class BiboumiTLSPolicy: public Botan::TLS::Policy -{ -public: -# if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,33) - bool use_ecc_point_compression() const override - { - return true; - } -# endif -}; - -# if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,32) -# define BOTAN_TLS_CALLBACKS_OVERRIDE override final -# else -# define BOTAN_TLS_CALLBACKS_OVERRIDE -# endif -#endif - -/** - * An interface, with a series of callbacks that should be implemented in - * subclasses that deal with a socket. These callbacks are called on various events - * (read/write/timeout, etc) when they are notified to a poller - * (select/poll/epoll etc) - */ -class TCPSocketHandler: public SocketHandler -#ifdef BOTAN_FOUND -# if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,32) - ,public Botan::TLS::Callbacks -# endif -#endif -{ -protected: - ~TCPSocketHandler(); -public: - explicit TCPSocketHandler(std::shared_ptr<Poller> poller); - TCPSocketHandler(const TCPSocketHandler&) = delete; - TCPSocketHandler(TCPSocketHandler&&) = delete; - TCPSocketHandler& operator=(const TCPSocketHandler&) = delete; - TCPSocketHandler& operator=(TCPSocketHandler&&) = delete; - - /** - * Connect to the remote server, and call on_connected() if this - * succeeds. If tls is true, we set use_tls to true and will also call - * start_tls() when the connection succeeds. - */ - void connect(const std::string& address, const std::string& port, const bool tls); - void connect() override final; - /** - * Reads raw data from the socket. And pass it to parse_in_buffer() - * If we are using TLS on this connection, we call tls_recv() - */ - void on_recv() override final; - /** - * Write as much data from out_buf as possible, in the socket. - */ - void on_send() override final; - /** - * Add the given data to out_buf and tell our poller that we want to be - * notified when a send event is ready. - * - * This can be overriden if we want to modify the data before sending - * it. For example if we want to encrypt it. - */ - void send_data(std::string&& data); - /** - * Watch the socket for send events, if our out buffer is not empty. - */ - void send_pending_data(); - /** - * Close the connection, remove us from the poller - */ - void close(); - /** - * Called by a TimedEvent, when the connection did not succeed or fail - * after a given time. - */ - void on_connection_timeout(); - /** - * Called when the connection is successful. - */ - virtual void on_connected() = 0; - /** - * Called when the connection fails. Not when it is closed later, just at - * the connect() call. - */ - virtual void on_connection_failed(const std::string& reason) = 0; - /** - * Called when we detect a disconnection from the remote host. - */ - virtual void on_connection_close(const std::string& error) = 0; - /** - * Handle/consume (some of) the data received so far. The data to handle - * may be in the in_buf buffer, or somewhere else, depending on what - * get_receive_buffer() returned. If some data is used from in_buf, it - * should be truncated, only the unused data should be left untouched. - * - * The size argument is the size of the last chunk of data that was added to the buffer. - */ - virtual void parse_in_buffer(const size_t size) = 0; -#ifdef BOTAN_FOUND - /** - * Tell whether the credential manager should cancel the connection when the - * certificate is invalid. - */ - virtual bool abort_on_invalid_cert() const - { - return true; - } -#endif - bool is_connected() const override final; - bool is_connecting() const; - bool is_using_tls() const; - std::string get_port() const; - std::chrono::system_clock::time_point connection_date; - -private: - /** - * Initialize the socket with the parameters contained in the given - * addrinfo structure. - */ - void init_socket(const struct addrinfo* rp); - /** - * Reads from the socket into the provided buffer. If an error occurs - * (read returns <= 0), the handling of the error is done here (close the - * connection, log a message, etc). - * - * Returns the value returned by ::recv(), so the buffer should not be - * used if it’s not positive. - */ - ssize_t do_recv(void* recv_buf, const size_t buf_size); - /** - * Reads data from the socket and calls parse_in_buffer with it. - */ - void plain_recv(); - /** - * Mark the given data as ready to be sent, as-is, on the socket, as soon - * as we can. - */ - void raw_send(std::string&& data); - -#ifdef BOTAN_FOUND - /** - * Create the TLS::Client object, with all the callbacks etc. This must be - * called only when we know we are able to send TLS-encrypted data over - * the socket. - */ - void start_tls(); - /** - * An additional step to pass the data into our tls object to decrypt it - * before passing it to parse_in_buffer. - */ - void tls_recv(); - /** - * Pass the data to the tls object in order to encrypt it. The tls object - * will then call raw_send as a callback whenever data as been encrypted - * and can be sent on the socket. - */ - void tls_send(std::string&& data); - /** - * Called by the tls object that some data has been decrypt. We call - * parse_in_buffer() to handle that unencrypted data. - */ - void tls_record_received(uint64_t rec_no, const Botan::byte* data, size_t size) BOTAN_TLS_CALLBACKS_OVERRIDE; - /** - * Called by the tls object to indicate that some data has been encrypted - * and is now ready to be sent on the socket as is. - */ - void tls_emit_data(const Botan::byte* data, size_t size) BOTAN_TLS_CALLBACKS_OVERRIDE; - /** - * Called by the tls object to indicate that a TLS alert has been - * received. We don’t use it, we just log some message, at the moment. - */ - void tls_alert(Botan::TLS::Alert alert) BOTAN_TLS_CALLBACKS_OVERRIDE; - /** - * Called by the tls object at the end of the TLS handshake. We don't do - * anything here appart from logging the TLS session information. - */ - bool tls_session_established(const Botan::TLS::Session& session) BOTAN_TLS_CALLBACKS_OVERRIDE; - -#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,34) - void tls_verify_cert_chain(const std::vector<Botan::X509_Certificate>& cert_chain, - const std::vector<std::shared_ptr<const Botan::OCSP::Response>>& ocsp_responses, - const std::vector<Botan::Certificate_Store*>& trusted_roots, - Botan::Usage_Type usage, - const std::string& hostname, - const Botan::TLS::Policy& policy) BOTAN_TLS_CALLBACKS_OVERRIDE; -#endif - /** - * Called whenever the tls session goes from inactive to active. This - * means that the handshake has just been successfully done, and we can - * now proceed to send any available data into our tls object. - */ - void on_tls_activated(); -#endif // BOTAN_FOUND - /** - * Where data is added, when we want to send something to the client. - */ - std::vector<std::string> out_buf; - /** - * DNS resolver - */ - Resolver resolver; - /** - * Keep the details of the addrinfo returned by the resolver that - * triggered a EINPROGRESS error when connect()ing to it, to reuse it - * directly when connect() is called again. - */ - struct addrinfo addrinfo; - struct sockaddr_in6 ai_addr; - socklen_t ai_addrlen; - -protected: - /** - * Where data read from the socket is added until we can extract a full - * and meaningful “message” from it. - * - * TODO: something more efficient than a string. - */ - std::string in_buf; - /** - * Whether we are using TLS on this connection or not. - */ - bool use_tls; - /** - * Provide a buffer in which data can be directly received. This can be - * used to avoid copying data into in_buf before using it. If no buffer - * needs to be provided, nullptr is returned (the default implementation - * does that), in that case our internal in_buf will be used to save the - * data until it can be used by parse_in_buffer(). - */ - virtual void* get_receive_buffer(const size_t size) const; - /** - * Hostname we are connected/connecting to - */ - std::string address; - /** - * Port we are connected/connecting to - */ - std::string port; - - bool connected; - bool connecting; - - bool hostname_resolution_failed; - - /** - * Address to bind the socket to, before calling connect(). - * If empty, it’s equivalent to binding to INADDR_ANY. - */ - std::string bind_addr; - -private: - /** - * Display the resolved IP, just for information purpose. - */ - void display_resolved_ip(struct addrinfo* rp) const; - -#ifdef BOTAN_FOUND - /** - * Botan stuff to manipulate a TLS session. - */ - static Botan::AutoSeeded_RNG rng; - static Botan::TLS::Policy policy; - static Botan::TLS::Session_Manager_In_Memory session_manager; -protected: - BasicCredentialsManager credential_manager; -private: - /** - * We use a unique_ptr because we may not want to create the object at - * all. The Botan::TLS::Client object generates a handshake message and - * calls the output_fn callback with it as soon as it is created. - * Therefore, we do not want to create it if we do not intend to send any - * TLS-encrypted message. We create the object only when needed (for - * example after we have negociated a TLS session using a STARTTLS - * message, or stuf like that). - * - * See start_tls for the method where this object is created. - */ - std::unique_ptr<Botan::TLS::Client> tls; - /** - * An additional buffer to keep data that the user wants to send, but - * cannot because the handshake is not done. - */ - std::vector<Botan::byte> pre_buf; -#endif // BOTAN_FOUND -}; diff --git a/louloulibs/utils/encoding.cpp b/louloulibs/utils/encoding.cpp deleted file mode 100644 index 60f2212..0000000 --- a/louloulibs/utils/encoding.cpp +++ /dev/null @@ -1,253 +0,0 @@ -#include <utils/encoding.hpp> - -#include <utils/scopeguard.hpp> - -#include <stdexcept> - -#include <assert.h> -#include <string.h> -#include <iconv.h> - -#include <map> -#include <bitset> - -/** - * The UTF-8-encoded character used as a place holder when a character conversion fails. - * This is U+FFFD � "replacement character" - */ -static const char* invalid_char = "\xef\xbf\xbd"; -static const size_t invalid_char_len = 3; - -namespace utils -{ - /** - * Based on http://en.wikipedia.org/wiki/UTF-8#Description - */ - std::size_t get_next_codepoint_size(const unsigned char c) - { - if ((c & 0b11111000) == 0b11110000) // 4 bytes: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - return 4; - else if ((c & 0b11110000) == 0b11100000) // 3 bytes: 1110xxx 10xxxxxx 10xxxxxx - return 3; - else if ((c & 0b11100000) == 0b11000000) // 2 bytes: 110xxxxx 10xxxxxx - return 2; - return 1; // 1 byte: 0xxxxxxx - } - - bool is_valid_utf8(const char* s) - { - if (!s) - return false; - - const unsigned char* str = reinterpret_cast<const unsigned char*>(s); - - while (*str) - { - const auto codepoint_size = get_next_codepoint_size(str[0]); - if (codepoint_size == 4) - { - if (!str[1] || !str[2] || !str[3] - || ((str[1] & 0b11000000) != 0b10000000) - || ((str[2] & 0b11000000) != 0b10000000) - || ((str[3] & 0b11000000) != 0b10000000)) - return false; - } - else if (codepoint_size == 3) - { - if (!str[1] || !str[2] - || ((str[1] & 0b11000000) != 0b10000000) - || ((str[2] & 0b11000000) != 0b10000000)) - return false; - } - else if (codepoint_size == 2) - { - if (!str[1] || - ((str[1] & 0b11000000) != 0b10000000)) - return false; - } - else if ((str[0] & 0b10000000) != 0) - return false; - str += codepoint_size; - } - return true; - } - - std::string remove_invalid_xml_chars(const std::string& original) - { - // The given string MUST be a valid utf-8 string - std::vector<char> res(original.size(), '\0'); - - // pointer where we write valid chars - char* r = res.data(); - - const char* str = original.c_str(); - std::bitset<20> codepoint; - - while (*str) - { - // 4 bytes: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - if ((str[0] & 0b11111000) == 0b11110000) - { - codepoint = ((str[0] & 0b00000111) << 18); - codepoint |= ((str[1] & 0b00111111) << 12); - codepoint |= ((str[2] & 0b00111111) << 6 ); - codepoint |= ((str[3] & 0b00111111) << 0 ); - if (codepoint.to_ulong() <= 0x10FFFF) - { - ::memcpy(r, str, 4); - r += 4; - } - str += 4; - } - // 3 bytes: 1110xxx 10xxxxxx 10xxxxxx - else if ((str[0] & 0b11110000) == 0b11100000) - { - codepoint = ((str[0] & 0b00001111) << 12); - codepoint |= ((str[1] & 0b00111111) << 6); - codepoint |= ((str[2] & 0b00111111) << 0 ); - if (codepoint.to_ulong() <= 0xD7FF || - (codepoint.to_ulong() >= 0xE000 && codepoint.to_ulong() <= 0xFFFD)) - { - ::memcpy(r, str, 3); - r += 3; - } - str += 3; - } - // 2 bytes: 110xxxxx 10xxxxxx - else if (((str[0]) & 0b11100000) == 0b11000000) - { - // All 2 bytes char are valid, don't even bother calculating - // the codepoint - ::memcpy(r, str, 2); - r += 2; - str += 2; - } - // 1 byte: 0xxxxxxx - else if ((str[0] & 0b10000000) == 0) - { - codepoint = ((str[0] & 0b01111111)); - if (codepoint.to_ulong() == 0x09 || - codepoint.to_ulong() == 0x0A || - codepoint.to_ulong() == 0x0D || - codepoint.to_ulong() >= 0x20) - { - ::memcpy(r, str, 1); - r += 1; - } - str += 1; - } - else - throw std::runtime_error("Invalid UTF-8 passed to remove_invalid_xml_chars"); - } - return {res.data(), static_cast<size_t>(r - res.data())}; - } - - std::string convert_to_utf8(const std::string& str, const char* charset) - { - std::string res; - - const iconv_t cd = iconv_open("UTF-8", charset); - if (cd == (iconv_t)-1) - throw std::runtime_error("Cannot convert into UTF-8"); - - // Make sure cd is always closed when we leave this function - const auto sg = utils::make_scope_guard([&cd](auto&&){ iconv_close(cd); }); - - size_t inbytesleft = str.size(); - - // iconv will not attempt to modify this buffer, but some plateform - // require a char** anyway -#ifdef ICONV_SECOND_ARGUMENT_IS_CONST - const char* inbuf_ptr = str.c_str(); -#else - char* inbuf_ptr = const_cast<char*>(str.c_str()); -#endif - - size_t outbytesleft = str.size() * 4; - char* outbuf = new char[outbytesleft]; - char* outbuf_ptr = outbuf; - - // Make sure outbuf is always deleted when we leave this function - const auto sg2 = utils::make_scope_guard([outbuf](auto&&){ delete[] outbuf; }); - - bool done = false; - while (done == false) - { - size_t error = iconv(cd, &inbuf_ptr, &inbytesleft, &outbuf_ptr, &outbytesleft); - if ((size_t)-1 == error) - { - switch (errno) - { - case EILSEQ: - // Invalid byte found. Insert a placeholder instead of the - // converted character, jump one byte and continue - memcpy(outbuf_ptr, invalid_char, invalid_char_len); - outbuf_ptr += invalid_char_len; - inbytesleft--; - inbuf_ptr++; - break; - case EINVAL: - // A multibyte sequence is not terminated, but we can't - // provide any more data, so we just add a placeholder to - // indicate that the character is not properly converted, - // and we stop the conversion - memcpy(outbuf_ptr, invalid_char, invalid_char_len); - outbuf_ptr += invalid_char_len; - outbuf_ptr++; - done = true; - break; - case E2BIG: // This should never happen - default: // This should happen even neverer - done = true; - break; - } - } - else - { - // The conversion finished without any error, stop converting - done = true; - } - } - // Terminate the converted buffer, and copy that buffer it into the - // string we return - *outbuf_ptr = '\0'; - res = outbuf; - return res; - } - -} - -namespace xep0106 -{ - static const std::map<const char, const std::string> encode_map = { - {' ', "\\20"}, - {'"', "\\22"}, - {'&', "\\26"}, - {'\'',"\\27"}, - {'/', "\\2f"}, - {':', "\\3a"}, - {'<', "\\3c"}, - {'>', "\\3e"}, - {'@', "\\40"}, - }; - - void decode(std::string& s) - { - std::string::size_type pos; - for (const auto& pair: encode_map) - while ((pos = s.find(pair.second)) != std::string::npos) - s.replace(pos, pair.second.size(), - 1, pair.first); - } - - void encode(std::string& s) - { - std::string::size_type pos; - while ((pos = s.find_first_of(" \"&'/:<>@")) != std::string::npos) - { - auto it = encode_map.find(s[pos]); - assert(it != encode_map.end()); - s.replace(pos, 1, it->second); - } - } -} diff --git a/louloulibs/utils/encoding.hpp b/louloulibs/utils/encoding.hpp deleted file mode 100644 index 586edd8..0000000 --- a/louloulibs/utils/encoding.hpp +++ /dev/null @@ -1,43 +0,0 @@ -#pragma once - - -#include <string> - -namespace utils -{ - /** - * Return the size, in bytes, of the next UTF-8 codepoint, based on - * the given char. - */ - std::size_t get_next_codepoint_size(const unsigned char c); - /** - * Returns true if the given null-terminated string is valid utf-8. - * - * Based on http://en.wikipedia.org/wiki/UTF-8#Description - */ - bool is_valid_utf8(const char* s); - /** - * Remove all invalid codepoints from the given utf-8-encoded string. - * The value returned is a copy of the string, without the removed chars. - * - * See http://www.w3.org/TR/xml/#charsets for the list of valid characters - * in XML. - */ - std::string remove_invalid_xml_chars(const std::string& original); - /** - * Convert the given string (encoded is "encoding") into valid utf-8. - * If some decoding fails, insert an utf-8 placeholder character instead. - */ - std::string convert_to_utf8(const std::string& str, const char* encoding); -} - -namespace xep0106 -{ - /** - * Decode and encode inplace. - */ - void decode(std::string&); - void encode(std::string&); -} - - diff --git a/louloulibs/utils/get_first_non_empty.cpp b/louloulibs/utils/get_first_non_empty.cpp deleted file mode 100644 index 5b3bedb..0000000 --- a/louloulibs/utils/get_first_non_empty.cpp +++ /dev/null @@ -1,11 +0,0 @@ -#include <utils/get_first_non_empty.hpp> - -bool is_empty(const std::string& val) -{ - return val.empty(); -} - -bool is_empty(const int& val) -{ - return val == 0; -} diff --git a/louloulibs/utils/get_first_non_empty.hpp b/louloulibs/utils/get_first_non_empty.hpp deleted file mode 100644 index a38f5fb..0000000 --- a/louloulibs/utils/get_first_non_empty.hpp +++ /dev/null @@ -1,20 +0,0 @@ -#pragma once - -#include <string> - -bool is_empty(const std::string& val); -bool is_empty(const int& val); - -template <typename T> -T get_first_non_empty(T&& last) -{ - return last; -} - -template <typename T, typename... Args> -T get_first_non_empty(T&& first, Args&&... args) -{ - if (!is_empty(first)) - return first; - return get_first_non_empty(std::forward<Args>(args)...); -} diff --git a/louloulibs/utils/revstr.cpp b/louloulibs/utils/revstr.cpp deleted file mode 100644 index 87fd801..0000000 --- a/louloulibs/utils/revstr.cpp +++ /dev/null @@ -1,9 +0,0 @@ -#include <utils/revstr.hpp> - -namespace utils -{ - std::string revstr(const std::string& original) - { - return {original.rbegin(), original.rend()}; - } -} diff --git a/louloulibs/utils/revstr.hpp b/louloulibs/utils/revstr.hpp deleted file mode 100644 index 8e521ea..0000000 --- a/louloulibs/utils/revstr.hpp +++ /dev/null @@ -1,11 +0,0 @@ -#pragma once - - -#include <string> - -namespace utils -{ - std::string revstr(const std::string& original); -} - - diff --git a/louloulibs/utils/scopeguard.hpp b/louloulibs/utils/scopeguard.hpp deleted file mode 100644 index cd0e89e..0000000 --- a/louloulibs/utils/scopeguard.hpp +++ /dev/null @@ -1,96 +0,0 @@ -#pragma once - -#include <functional> -#include <memory> -#include <vector> - -/** - * A class to be used to make sure some functions are called when the scope - * is left, because they will be called in the ScopeGuard's destructor. It - * can for example be used to delete some pointer whenever any exception is - * called. Example: - - * { - * ScopeGuard scope; - * int* number = new int(2); - * scope.add_callback([number]() { delete number; }); - * // Do some other stuff with the number. But these stuff might throw an exception: - * throw std::runtime_error("Some error not caught here, but in our caller"); - * return true; - * } - - * In this example, our pointer will always be deleted, even when the - * exception is thrown. If we want the functions to be called only when the - * scope is left because of an unexpected exception, we can use - * ScopeGuard::disable(); - */ - -namespace utils -{ - -class ScopeGuard -{ -public: - /** - * The constructor can take a callback. But additional callbacks can be - * added later with add_callback() - */ - explicit ScopeGuard(std::function<void()>&& func): - enabled(true) - { - this->add_callback(std::move(func)); - } - - ScopeGuard(const ScopeGuard&) = delete; - ScopeGuard& operator=(ScopeGuard&&) = delete; - ScopeGuard(ScopeGuard&&) = delete; - ScopeGuard& operator=(const ScopeGuard&) = delete; - - /** - * default constructor, the scope guard is enabled but empty, use - * add_callback() - */ - explicit ScopeGuard(): - enabled(true) - { - } - /** - * Call all callbacks in the desctructor, unless it has been disabled. - */ - ~ScopeGuard() - { - if (this->enabled) - for (auto& func: this->callbacks) - func(); - } - /** - * Add a callback to be called in our destructor, one scope guard can be - * used for more than one task, if needed. - */ - void add_callback(std::function<void()>&& func) - { - this->callbacks.emplace_back(std::move(func)); - } - /** - * Disable that scope guard, nothing will be done when the scope is - * exited. - */ - void disable() - { - this->enabled = false; - } - -private: - bool enabled; - std::vector<std::function<void()>> callbacks; - -}; - -template<typename F> -auto make_scope_guard(F&& f) -{ - return std::unique_ptr<void, std::decay_t<F>>{(void*)1, std::forward<F>(f)}; -} - -} - diff --git a/louloulibs/utils/sha1.cpp b/louloulibs/utils/sha1.cpp deleted file mode 100644 index f75bc2a..0000000 --- a/louloulibs/utils/sha1.cpp +++ /dev/null @@ -1,121 +0,0 @@ -/* This code is public-domain - it is based on libcrypt - * placed in the public domain by Wei Dai and other contributors. - */ - -#include "sha1.hpp" - -#define SHA1_K0 0x5a827999 -#define SHA1_K20 0x6ed9eba1 -#define SHA1_K40 0x8f1bbcdc -#define SHA1_K60 0xca62c1d6 - -const uint8_t sha1InitState[] = { - 0x01,0x23,0x45,0x67, // H0 - 0x89,0xab,0xcd,0xef, // H1 - 0xfe,0xdc,0xba,0x98, // H2 - 0x76,0x54,0x32,0x10, // H3 - 0xf0,0xe1,0xd2,0xc3 // H4 -}; - -void sha1_init(sha1nfo *s) { - memcpy(s->state.b,sha1InitState,HASH_LENGTH); - s->byteCount = 0; - s->bufferOffset = 0; -} - -uint32_t sha1_rol32(uint32_t number, uint8_t bits) { - return ((number << bits) | (number >> (32-bits))); -} - -void sha1_hashBlock(sha1nfo *s) { - uint8_t i; - uint32_t a,b,c,d,e,t; - - a=s->state.w[0]; - b=s->state.w[1]; - c=s->state.w[2]; - d=s->state.w[3]; - e=s->state.w[4]; - for (i=0; i<80; i++) { - if (i>=16) { - t = s->buffer.w[(i+13)&15] ^ s->buffer.w[(i+8)&15] ^ s->buffer.w[(i+2)&15] ^ s->buffer.w[i&15]; - s->buffer.w[i&15] = sha1_rol32(t,1); - } - if (i<20) { - t = (d ^ (b & (c ^ d))) + SHA1_K0; - } else if (i<40) { - t = (b ^ c ^ d) + SHA1_K20; - } else if (i<60) { - t = ((b & c) | (d & (b | c))) + SHA1_K40; - } else { - t = (b ^ c ^ d) + SHA1_K60; - } - t+=sha1_rol32(a,5) + e + s->buffer.w[i&15]; - e=d; - d=c; - c=sha1_rol32(b,30); - b=a; - a=t; - } - s->state.w[0] += a; - s->state.w[1] += b; - s->state.w[2] += c; - s->state.w[3] += d; - s->state.w[4] += e; -} - -void sha1_addUncounted(sha1nfo *s, uint8_t data) { - s->buffer.b[s->bufferOffset ^ 3] = data; - s->bufferOffset++; - if (s->bufferOffset == BLOCK_LENGTH) { - sha1_hashBlock(s); - s->bufferOffset = 0; - } -} - -void sha1_writebyte(sha1nfo *s, uint8_t data) { - ++s->byteCount; - sha1_addUncounted(s, data); -} - -void sha1_write(sha1nfo *s, const char *data, size_t len) { - for (;len--;) sha1_writebyte(s, (uint8_t) *data++); -} - -void sha1_pad(sha1nfo *s) { - // Implement SHA-1 padding (fips180-2 §5.1.1) - - // Pad with 0x80 followed by 0x00 until the end of the block - sha1_addUncounted(s, 0x80); - while (s->bufferOffset != 56) sha1_addUncounted(s, 0x00); - - // Append length in the last 8 bytes - sha1_addUncounted(s, 0); // We're only using 32 bit lengths - sha1_addUncounted(s, 0); // But SHA-1 supports 64 bit lengths - sha1_addUncounted(s, 0); // So zero pad the top bits - sha1_addUncounted(s, s->byteCount >> 29); // Shifting to multiply by 8 - sha1_addUncounted(s, s->byteCount >> 21); // as SHA-1 supports bitstreams as well as - sha1_addUncounted(s, s->byteCount >> 13); // byte. - sha1_addUncounted(s, s->byteCount >> 5); - sha1_addUncounted(s, s->byteCount << 3); -} - -uint8_t* sha1_result(sha1nfo *s) { - int i; - // Pad to complete the last block - sha1_pad(s); - - // Swap byte order back - for (i=0; i<5; i++) { - uint32_t a,b; - a=s->state.w[i]; - b=a<<24; - b|=(a<<8) & 0x00ff0000; - b|=(a>>8) & 0x0000ff00; - b|=a>>24; - s->state.w[i]=b; - } - - // Return pointer to hash (20 characters) - return s->state.b; -} diff --git a/louloulibs/utils/sha1.hpp b/louloulibs/utils/sha1.hpp deleted file mode 100644 index d436782..0000000 --- a/louloulibs/utils/sha1.hpp +++ /dev/null @@ -1,33 +0,0 @@ -/* This code is public-domain - it is based on libcrypt - * placed in the public domain by Wei Dai and other contributors. - */ - -#include <stdint.h> -#include <string.h> - -#define HASH_LENGTH 20 -#define BLOCK_LENGTH 64 - -union _buffer { - uint8_t b[BLOCK_LENGTH]; - uint32_t w[BLOCK_LENGTH/4]; -}; - -union _state { - uint8_t b[HASH_LENGTH]; - uint32_t w[HASH_LENGTH/4]; -}; - -typedef struct sha1nfo { - union _buffer buffer; - uint8_t bufferOffset; - union _state state; - uint32_t byteCount; - uint8_t keyBuffer[BLOCK_LENGTH]; - uint8_t innerHash[HASH_LENGTH]; -} sha1nfo; - -void sha1_init(sha1nfo *s); -void sha1_writebyte(sha1nfo *s, uint8_t data); -void sha1_write(sha1nfo *s, const char *data, size_t len); -uint8_t* sha1_result(sha1nfo *s); diff --git a/louloulibs/utils/split.cpp b/louloulibs/utils/split.cpp deleted file mode 100644 index 80f8dae..0000000 --- a/louloulibs/utils/split.cpp +++ /dev/null @@ -1,19 +0,0 @@ -#include <utils/split.hpp> -#include <sstream> - -namespace utils -{ - std::vector<std::string> split(const std::string& s, const char delim, const bool allow_empty) - { - std::vector<std::string> ret; - std::stringstream ss(s); - std::string item; - while (std::getline(ss, item, delim)) - { - if (item.empty() && !allow_empty) - continue ; - ret.emplace_back(std::move(item)); - } - return ret; - } -} diff --git a/louloulibs/utils/split.hpp b/louloulibs/utils/split.hpp deleted file mode 100644 index 3755ef8..0000000 --- a/louloulibs/utils/split.hpp +++ /dev/null @@ -1,12 +0,0 @@ -#pragma once - - -#include <string> -#include <vector> - -namespace utils -{ - std::vector<std::string> split(const std::string &s, const char delim, const bool allow_empty=true); -} - - diff --git a/louloulibs/utils/string.cpp b/louloulibs/utils/string.cpp deleted file mode 100644 index 635e71a..0000000 --- a/louloulibs/utils/string.cpp +++ /dev/null @@ -1,28 +0,0 @@ -#include <utils/string.hpp> -#include <utils/encoding.hpp> - -bool to_bool(const std::string& val) -{ - return (val == "1" || val == "true"); -} - -std::vector<std::string> cut(const std::string& val, const std::size_t size) -{ - std::vector<std::string> res; - std::string::size_type pos = 0; - while (pos < val.size()) - { - // Get the number of chars, <= size, that contain only whole - // UTF-8 codepoints. - std::size_t s = 0; - auto codepoint_size = utils::get_next_codepoint_size(val[pos + s]); - while (s + codepoint_size <= size && pos + s < val.size()) - { - s += codepoint_size; - codepoint_size = utils::get_next_codepoint_size(val[pos + s]); - } - res.emplace_back(val.substr(pos, s)); - pos += s; - } - return res; -} diff --git a/louloulibs/utils/string.hpp b/louloulibs/utils/string.hpp deleted file mode 100644 index 84ba101..0000000 --- a/louloulibs/utils/string.hpp +++ /dev/null @@ -1,10 +0,0 @@ -#pragma once - - -#include <vector> -#include <string> - -bool to_bool(const std::string& val); -std::vector<std::string> cut(const std::string& val, const std::size_t size); - - diff --git a/louloulibs/utils/time.cpp b/louloulibs/utils/time.cpp deleted file mode 100644 index afd6117..0000000 --- a/louloulibs/utils/time.cpp +++ /dev/null @@ -1,70 +0,0 @@ -#include <utils/time.hpp> -#include <time.h> - -#include <sstream> -#include <iomanip> -#include <locale> - -#include "louloulibs.h" - -namespace utils -{ -std::string to_string(const std::time_t& timestamp) -{ - constexpr std::size_t stamp_size = 21; - char date_buf[stamp_size]; - if (std::strftime(date_buf, stamp_size, "%FT%TZ", std::gmtime(×tamp)) != stamp_size - 1) - return ""; - return {std::begin(date_buf), std::end(date_buf) - 1}; -} - -std::time_t parse_datetime(const std::string& stamp) -{ - static const char* format = "%Y-%m-%dT%H:%M:%S"; - std::tm t = {}; -#ifdef HAS_GET_TIME - std::istringstream ss(stamp); - ss.imbue(std::locale("en_US.utf-8")); - - std::string timezone; - ss >> std::get_time(&t, format) >> timezone; - if (ss.fail()) - return -1; -#else - /* Y - m - d T H : M : S */ - constexpr std::size_t stamp_size_without_tz = 4 + 1 + 2 + 1 + 2 + 1 + 2 + 1 + 2 + 1 + 2; - if (!strptime(stamp.data(), format, &t)) { - return -1; - } - const std::string timezone(stamp.data() + stamp_size_without_tz); -#endif - - if (timezone.empty()) - return -1; - - if (timezone.compare(0, 1, "Z") != 0) - { - std::stringstream tz_ss; - tz_ss << timezone; - int multiplier = -1; - char prefix; - int hours; - char sep; - int minutes; - tz_ss >> prefix >> hours >> sep >> minutes; - if (tz_ss.fail()) - return -1; - if (prefix == '-') - multiplier = +1; - else if (prefix != '+') - return -1; - - t.tm_hour += multiplier * hours; - t.tm_min += multiplier * minutes; - } - return ::timegm(&t); -} - -} - - diff --git a/louloulibs/utils/time.hpp b/louloulibs/utils/time.hpp deleted file mode 100644 index c71cd9c..0000000 --- a/louloulibs/utils/time.hpp +++ /dev/null @@ -1,10 +0,0 @@ -#pragma once - -#include <ctime> -#include <string> - -namespace utils -{ -std::string to_string(const std::time_t& timestamp); -std::time_t parse_datetime(const std::string& stamp); -}
\ No newline at end of file diff --git a/louloulibs/utils/timed_events.cpp b/louloulibs/utils/timed_events.cpp deleted file mode 100644 index 68d009c..0000000 --- a/louloulibs/utils/timed_events.cpp +++ /dev/null @@ -1,49 +0,0 @@ -#include <utils/timed_events.hpp> - -TimedEvent::TimedEvent(std::chrono::steady_clock::time_point&& time_point, - std::function<void()> callback, const std::string& name): - time_point(std::move(time_point)), - callback(callback), - repeat(false), - repeat_delay(0), - name(name) -{ -} - -TimedEvent::TimedEvent(std::chrono::milliseconds&& duration, - std::function<void()> callback, const std::string& name): - time_point(std::chrono::steady_clock::now() + duration), - callback(callback), - repeat(true), - repeat_delay(std::move(duration)), - name(name) -{ -} - -bool TimedEvent::is_after(const TimedEvent& other) const -{ - return this->is_after(other.time_point); -} - -bool TimedEvent::is_after(const std::chrono::steady_clock::time_point& time_point) const -{ - return this->time_point > time_point; -} - -std::chrono::milliseconds TimedEvent::get_timeout() const -{ - auto now = std::chrono::steady_clock::now(); - if (now > this->time_point) - return std::chrono::milliseconds(0); - return std::chrono::duration_cast<std::chrono::milliseconds>(this->time_point - now); -} - -void TimedEvent::execute() const -{ - this->callback(); -} - -const std::string& TimedEvent::get_name() const -{ - return this->name; -} diff --git a/louloulibs/utils/timed_events.hpp b/louloulibs/utils/timed_events.hpp deleted file mode 100644 index 6e28206..0000000 --- a/louloulibs/utils/timed_events.hpp +++ /dev/null @@ -1,132 +0,0 @@ -#pragma once - -#include <functional> -#include <string> -#include <chrono> -#include <vector> - -using namespace std::literals::chrono_literals; - -namespace utils { -static constexpr std::chrono::milliseconds no_timeout = std::chrono::milliseconds(-1); -} - -class TimedEventsManager; - -/** - * A callback with an associated date. - */ - -class TimedEvent -{ - friend class TimedEventsManager; -public: - /** - * An event the occurs only once, at the given time_point - */ - explicit TimedEvent(std::chrono::steady_clock::time_point&& time_point, - std::function<void()> callback, const std::string& name=""); - explicit TimedEvent(std::chrono::milliseconds&& duration, - std::function<void()> callback, const std::string& name=""); - - explicit TimedEvent(TimedEvent&&) = default; - TimedEvent& operator=(TimedEvent&&) = default; - ~TimedEvent() = default; - - TimedEvent(const TimedEvent&) = delete; - TimedEvent& operator=(const TimedEvent&) = delete; - - /** - * Whether or not this event happens after the other one. - */ - bool is_after(const TimedEvent& other) const; - bool is_after(const std::chrono::steady_clock::time_point& time_point) const; - /** - * Return the duration difference between now and the event time point. - * If the difference would be negative (i.e. the event is expired), the - * returned value is 0 instead. The value cannot then be negative. - */ - std::chrono::milliseconds get_timeout() const; - void execute() const; - const std::string& get_name() const; - -private: - /** - * The next time point at which the event is executed. - */ - std::chrono::steady_clock::time_point time_point; - /** - * The function to execute. - */ - std::function<void()> callback; - /** - * Whether or not this events repeats itself until it is destroyed. - */ - bool repeat; - /** - * This value is added to the time_point each time the event is executed, - * if repeat is true. Otherwise it is ignored. - */ - std::chrono::milliseconds repeat_delay; - /** - * A name that is used to identify that event. If you want to find your - * event (for example if you want to cancel it), the name should be - * unique. - */ - std::string name; -}; - -/** - * A class managing a list of TimedEvents. - * They are sorted, new events can be added, removed, fetch, etc. - */ - -class TimedEventsManager -{ -public: - ~TimedEventsManager() = default; - - TimedEventsManager(const TimedEventsManager&) = delete; - TimedEventsManager(TimedEventsManager&&) = delete; - TimedEventsManager& operator=(const TimedEventsManager&) = delete; - TimedEventsManager& operator=(TimedEventsManager&&) = delete; - - /** - * Return the unique instance of this class - */ - static TimedEventsManager& instance(); - /** - * Add an event to the list of managed events. The list is sorted after - * this call. - */ - void add_event(TimedEvent&& event); - /** - * Returns the duration, in milliseconds, between now and the next - * available event. If the event is already expired (the duration is - * negative), 0 is returned instead (as in “it's not too late, execute it - * now”) - * Returns a negative value if no event is available. - */ - std::chrono::milliseconds get_timeout() const; - /** - * Execute all the expired events (if their expiration time is exactly - * now, or before now). The event is then removed from the list. If the - * event does repeat, its expiration time is updated and it is reinserted - * in the list at the correct position. - * Returns the number of executed events. - */ - std::size_t execute_expired_events(); - /** - * Remove (and thus cancel) all the timed events with the given name. - * Returns the number of canceled events. - */ - std::size_t cancel(const std::string& name); - /** - * Return the number of managed events. - */ - std::size_t size() const; - -private: - std::vector<TimedEvent> events; - explicit TimedEventsManager() = default; -}; diff --git a/louloulibs/utils/timed_events_manager.cpp b/louloulibs/utils/timed_events_manager.cpp deleted file mode 100644 index 67d61fe..0000000 --- a/louloulibs/utils/timed_events_manager.cpp +++ /dev/null @@ -1,73 +0,0 @@ -#include <utils/timed_events.hpp> - -TimedEventsManager& TimedEventsManager::instance() -{ - static TimedEventsManager inst; - return inst; -} - -void TimedEventsManager::add_event(TimedEvent&& event) -{ - for (auto it = this->events.begin(); it != this->events.end(); ++it) - { - if (it->is_after(event)) - { - this->events.emplace(it, std::move(event)); - return; - } - } - this->events.emplace_back(std::move(event)); -} - -std::chrono::milliseconds TimedEventsManager::get_timeout() const -{ - if (this->events.empty()) - return utils::no_timeout; - return this->events.front().get_timeout(); -} - -std::size_t TimedEventsManager::execute_expired_events() -{ - std::size_t count = 0; - const auto now = std::chrono::steady_clock::now(); - for (auto it = this->events.begin(); it != this->events.end();) - { - if (!it->is_after(now)) - { - TimedEvent copy(std::move(*it)); - it = this->events.erase(it); - ++count; - copy.execute(); - if (copy.repeat) - { - copy.time_point += copy.repeat_delay; - this->add_event(std::move(copy)); - } - continue; - } - else - break; - } - return count; -} - -std::size_t TimedEventsManager::cancel(const std::string& name) -{ - std::size_t res = 0; - for (auto it = this->events.begin(); it != this->events.end();) - { - if (it->get_name() == name) - { - it = this->events.erase(it); - res++; - } - else - ++it; - } - return res; -} - -std::size_t TimedEventsManager::size() const -{ - return this->events.size(); -} diff --git a/louloulibs/utils/tolower.cpp b/louloulibs/utils/tolower.cpp deleted file mode 100644 index 3e518bd..0000000 --- a/louloulibs/utils/tolower.cpp +++ /dev/null @@ -1,13 +0,0 @@ -#include <utils/tolower.hpp> - -namespace utils -{ - std::string tolower(const std::string& original) - { - std::string res; - res.reserve(original.size()); - for (const char c: original) - res += static_cast<char>(std::tolower(c)); - return res; - } -} diff --git a/louloulibs/utils/tolower.hpp b/louloulibs/utils/tolower.hpp deleted file mode 100644 index 650e05d..0000000 --- a/louloulibs/utils/tolower.hpp +++ /dev/null @@ -1,11 +0,0 @@ -#pragma once - - -#include <string> - -namespace utils -{ - std::string tolower(const std::string& original); -} - - diff --git a/louloulibs/utils/xdg.cpp b/louloulibs/utils/xdg.cpp deleted file mode 100644 index 48212a1..0000000 --- a/louloulibs/utils/xdg.cpp +++ /dev/null @@ -1,29 +0,0 @@ -#include <utils/xdg.hpp> -#include <cstdlib> - -#include "louloulibs.h" - -std::string xdg_path(const std::string& filename, const char* env_var) -{ - const char* xdg_home = ::getenv(env_var); - if (xdg_home && xdg_home[0] == '/') - return std::string{xdg_home} + "/" PROJECT_NAME "/" + filename; - else - { - const char* home = ::getenv("HOME"); - if (home) - return std::string{home} + "/" ".config" "/" PROJECT_NAME "/" + filename; - else - return filename; - } -} - -std::string xdg_config_path(const std::string& filename) -{ - return xdg_path(filename, "XDG_CONFIG_HOME"); -} - -std::string xdg_data_path(const std::string& filename) -{ - return xdg_path(filename, "XDG_DATA_HOME"); -} diff --git a/louloulibs/utils/xdg.hpp b/louloulibs/utils/xdg.hpp deleted file mode 100644 index 56e11da..0000000 --- a/louloulibs/utils/xdg.hpp +++ /dev/null @@ -1,14 +0,0 @@ -#pragma once - - -#include <string> - -/** - * Returns a path for the given filename, according to the XDG base - * directory specification, see - * http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html - */ -std::string xdg_config_path(const std::string& filename); -std::string xdg_data_path(const std::string& filename); - - diff --git a/louloulibs/xmpp/adhoc_command.cpp b/louloulibs/xmpp/adhoc_command.cpp deleted file mode 100644 index 99701d7..0000000 --- a/louloulibs/xmpp/adhoc_command.cpp +++ /dev/null @@ -1,89 +0,0 @@ -#include <xmpp/adhoc_command.hpp> -#include <xmpp/xmpp_component.hpp> -#include <utils/reload.hpp> - -using namespace std::string_literals; - -AdhocCommand::AdhocCommand(std::vector<AdhocStep>&& callbacks, const std::string& name, const bool admin_only): - name(name), - callbacks(std::move(callbacks)), - admin_only(admin_only) -{ -} - -bool AdhocCommand::is_admin_only() const -{ - return this->admin_only; -} - -void PingStep1(XmppComponent&, AdhocSession&, XmlNode& command_node) -{ - XmlNode note("note"); - note["type"] = "info"; - note.set_inner("Pong"); - command_node.add_child(std::move(note)); -} - -void HelloStep1(XmppComponent&, AdhocSession&, XmlNode& command_node) -{ - XmlNode x("jabber:x:data:x"); - x["type"] = "form"; - XmlNode title("title"); - title.set_inner("Configure your name."); - x.add_child(std::move(title)); - XmlNode instructions("instructions"); - instructions.set_inner("Please provide your name."); - x.add_child(std::move(instructions)); - XmlNode name_field("field"); - name_field["var"] = "name"; - name_field["type"] = "text-single"; - name_field["label"] = "Your name"; - XmlNode required("required"); - name_field.add_child(std::move(required)); - x.add_child(std::move(name_field)); - command_node.add_child(std::move(x)); -} - -void HelloStep2(XmppComponent&, AdhocSession& session, XmlNode& command_node) -{ - // Find out if the name was provided in the form. - if (const XmlNode* x = command_node.get_child("x", "jabber:x:data")) - { - const XmlNode* name_field = nullptr; - for (const XmlNode* field: x->get_children("field", "jabber:x:data")) - if (field->get_tag("var") == "name") - { - name_field = field; - break; - } - if (name_field) - { - if (const XmlNode* value = name_field->get_child("value", "jabber:x:data")) - { - XmlNode note("note"); - note["type"] = "info"; - note.set_inner("Hello "s + value->get_inner() + "!"s); - command_node.delete_all_children(); - command_node.add_child(std::move(note)); - return; - } - } - } - command_node.delete_all_children(); - XmlNode error(ADHOC_NS":error"); - error["type"] = "modify"; - XmlNode condition(STANZA_NS":bad-request"); - error.add_child(std::move(condition)); - command_node.add_child(std::move(error)); - session.terminate(); -} - -void Reload(XmppComponent&, AdhocSession&, XmlNode& command_node) -{ - ::reload_process(); - command_node.delete_all_children(); - XmlNode note("note"); - note["type"] = "info"; - note.set_inner("Configuration reloaded."); - command_node.add_child(std::move(note)); -} diff --git a/louloulibs/xmpp/adhoc_command.hpp b/louloulibs/xmpp/adhoc_command.hpp deleted file mode 100644 index 7c4de47..0000000 --- a/louloulibs/xmpp/adhoc_command.hpp +++ /dev/null @@ -1,44 +0,0 @@ -#pragma once - -/** - * Describe an ad-hoc command. - * - * Can only have zero or one step for now. When execution is requested, it - * can return a result immediately, or provide a form to be filled, and - * provide a result once the filled form is received. - */ - -#include <xmpp/adhoc_session.hpp> - -#include <functional> -#include <string> - -class AdhocCommand -{ - friend class AdhocSession; -public: - AdhocCommand(std::vector<AdhocStep>&& callback, const std::string& name, const bool admin_only); - ~AdhocCommand() = default; - AdhocCommand(const AdhocCommand&) = default; - AdhocCommand(AdhocCommand&&) = default; - AdhocCommand& operator=(AdhocCommand&&) = delete; - AdhocCommand& operator=(const AdhocCommand&) = delete; - - const std::string name; - - bool is_admin_only() const; - -private: - /** - * A command may have one or more steps. Each step is a different - * callback, inserting things into a <command/> XmlNode and calling - * methods of an AdhocSession. - */ - std::vector<AdhocStep> callbacks; - const bool admin_only; -}; - -void PingStep1(XmppComponent&, AdhocSession& session, XmlNode& command_node); -void HelloStep1(XmppComponent&, AdhocSession& session, XmlNode& command_node); -void HelloStep2(XmppComponent&, AdhocSession& session, XmlNode& command_node); -void Reload(XmppComponent&, AdhocSession& session, XmlNode& command_node); diff --git a/louloulibs/xmpp/adhoc_commands_handler.cpp b/louloulibs/xmpp/adhoc_commands_handler.cpp deleted file mode 100644 index 540cac0..0000000 --- a/louloulibs/xmpp/adhoc_commands_handler.cpp +++ /dev/null @@ -1,126 +0,0 @@ -#include <xmpp/adhoc_commands_handler.hpp> -#include <xmpp/xmpp_component.hpp> - -#include <utils/timed_events.hpp> -#include <logger/logger.hpp> -#include <config/config.hpp> -#include <xmpp/jid.hpp> - -#include <iostream> - -using namespace std::string_literals; - -const std::map<const std::string, const AdhocCommand>& AdhocCommandsHandler::get_commands() const -{ - return this->commands; -} - -void AdhocCommandsHandler::add_command(std::string name, AdhocCommand command) -{ - const auto found = this->commands.find(name); - if (found != this->commands.end()) - throw std::runtime_error("Trying to add an ad-hoc command that already exist: "s + name); - this->commands.emplace(std::make_pair(std::move(name), std::move(command))); -} - -XmlNode AdhocCommandsHandler::handle_request(const std::string& executor_jid, const std::string& to, XmlNode command_node) -{ - std::string action = command_node.get_tag("action"); - if (action.empty()) - action = "execute"; - command_node.del_tag("action"); - - Jid jid(executor_jid); - - const std::string node = command_node.get_tag("node"); - auto command_it = this->commands.find(node); - if (command_it == this->commands.end()) - { - XmlNode error(ADHOC_NS":error"); - error["type"] = "cancel"; - XmlNode condition(STANZA_NS":item-not-found"); - error.add_child(std::move(condition)); - command_node.add_child(std::move(error)); - } - else if (command_it->second.is_admin_only() && - Config::get("admin", "") != jid.local + "@" + jid.domain) - { - XmlNode error(ADHOC_NS":error"); - error["type"] = "cancel"; - XmlNode condition(STANZA_NS":forbidden"); - error.add_child(std::move(condition)); - command_node.add_child(std::move(error)); - } - else - { - std::string sessionid = command_node.get_tag("sessionid"); - if (sessionid.empty()) - { // create a new session, with a new id - sessionid = XmppComponent::next_id(); - command_node["sessionid"] = sessionid; - this->sessions.emplace(std::piecewise_construct, - std::forward_as_tuple(sessionid, executor_jid), - std::forward_as_tuple(command_it->second, executor_jid, to)); - TimedEventsManager::instance().add_event(TimedEvent(std::chrono::steady_clock::now() + 3600s, - std::bind(&AdhocCommandsHandler::remove_session, this, sessionid, executor_jid), - "adhocsession"s + sessionid + executor_jid)); - } - auto session_it = this->sessions.find(std::make_pair(sessionid, executor_jid)); - if (session_it == this->sessions.end()) - { - XmlNode error(ADHOC_NS":error"); - error["type"] = "modify"; - XmlNode condition(STANZA_NS":bad-request"); - error.add_child(std::move(condition)); - command_node.add_child(std::move(error)); - } - else if (action == "execute" || action == "next" || action == "complete") - { - // execute the step - AdhocSession& session = session_it->second; - const AdhocStep& step = session.get_next_step(); - step(this->xmpp_component, session, command_node); - if (session.remaining_steps() == 0 || - session.is_terminated()) - { - this->sessions.erase(session_it); - command_node["status"] = "completed"; - TimedEventsManager::instance().cancel("adhocsession"s + sessionid + executor_jid); - } - else - { - command_node["status"] = "executing"; - XmlNode actions("actions"); - XmlNode next("next"); - actions.add_child(std::move(next)); - command_node.add_child(std::move(actions)); - } - } - else if (action == "cancel") - { - this->sessions.erase(session_it); - command_node["status"] = "canceled"; - TimedEventsManager::instance().cancel("adhocsession"s + sessionid + executor_jid); - } - else // unsupported action - { - XmlNode error(ADHOC_NS":error"); - error["type"] = "modify"; - XmlNode condition(STANZA_NS":bad-request"); - error.add_child(std::move(condition)); - command_node.add_child(std::move(error)); - } - } - return command_node; -} - -void AdhocCommandsHandler::remove_session(const std::string& session_id, const std::string& initiator_jid) -{ - auto session_it = this->sessions.find(std::make_pair(session_id, initiator_jid)); - if (session_it != this->sessions.end()) - { - this->sessions.erase(session_it); - return ; - } - log_error("Tried to remove ad-hoc session for [", session_id, ", ", initiator_jid, "] but none found"); -} diff --git a/louloulibs/xmpp/adhoc_commands_handler.hpp b/louloulibs/xmpp/adhoc_commands_handler.hpp deleted file mode 100644 index e37d913..0000000 --- a/louloulibs/xmpp/adhoc_commands_handler.hpp +++ /dev/null @@ -1,71 +0,0 @@ -#pragma once - -/** - * Manage a list of available AdhocCommands and the list of ongoing - * AdhocCommandSessions. - */ - -#include <xmpp/adhoc_command.hpp> -#include <xmpp/xmpp_stanza.hpp> - -#include <utility> -#include <string> -#include <map> - -class AdhocCommandsHandler -{ -public: - explicit AdhocCommandsHandler(XmppComponent& xmpp_component): - xmpp_component(xmpp_component), - commands{} - { } - ~AdhocCommandsHandler() = default; - - AdhocCommandsHandler(const AdhocCommandsHandler&) = delete; - AdhocCommandsHandler(AdhocCommandsHandler&&) = delete; - AdhocCommandsHandler& operator=(const AdhocCommandsHandler&) = delete; - AdhocCommandsHandler& operator=(AdhocCommandsHandler&&) = delete; - - /** - * Returns the list of available commands. - */ - const std::map<const std::string, const AdhocCommand>& get_commands() const; - /** - * Add a command into the list, associated with the given name - */ - void add_command(std::string name, AdhocCommand command); - /** - * Find the requested command, create a new session or use an existing - * one, and process the request (provide a new form, an error, or a - * result). - * - * Returns a (moved) XmlNode that will be inserted in the iq response. It - * should be a <command/> node containing one or more useful children. If - * it contains an <error/> node, the iq response will have an error type. - * - * Takes a copy of the <command/> node so we can actually edit it and use - * it as our return value. - */ - XmlNode handle_request(const std::string& executor_jid, const std::string& to, XmlNode command_node); - /** - * Remove the session from the list. This is done to avoid filling the - * memory with waiting session (for example due to a client that starts - * multi-steps command but never finishes them). - */ - void remove_session(const std::string& session_id, const std::string& initiator_jid); -private: - /** - * To access basically anything in the gateway. - */ - XmppComponent& xmpp_component; - /** - * The list of all available commands. - */ - std::map<const std::string, const AdhocCommand> commands; - /** - * The list of all currently on-going commands. - * - * Of the form: {{session_id, owner_jid}, session}. - */ - std::map<std::pair<const std::string, const std::string>, AdhocSession> sessions; -}; diff --git a/louloulibs/xmpp/adhoc_session.cpp b/louloulibs/xmpp/adhoc_session.cpp deleted file mode 100644 index dda4bea..0000000 --- a/louloulibs/xmpp/adhoc_session.cpp +++ /dev/null @@ -1,35 +0,0 @@ -#include <xmpp/adhoc_session.hpp> -#include <xmpp/adhoc_command.hpp> - -#include <assert.h> - -AdhocSession::AdhocSession(const AdhocCommand& command, const std::string& owner_jid, - const std::string& to_jid): - command(command), - owner_jid(owner_jid), - to_jid(to_jid), - current_step(0), - terminated(false) -{ -} - -const AdhocStep& AdhocSession::get_next_step() -{ - assert(this->current_step < this->command.callbacks.size()); - return this->command.callbacks[this->current_step++]; -} - -size_t AdhocSession::remaining_steps() const -{ - return this->command.callbacks.size() - this->current_step; -} - -bool AdhocSession::is_terminated() const -{ - return this->terminated; -} - -void AdhocSession::terminate() -{ - this->terminated = true; -} diff --git a/louloulibs/xmpp/adhoc_session.hpp b/louloulibs/xmpp/adhoc_session.hpp deleted file mode 100644 index 0de8d13..0000000 --- a/louloulibs/xmpp/adhoc_session.hpp +++ /dev/null @@ -1,88 +0,0 @@ -#pragma once - -#include <xmpp/xmpp_stanza.hpp> - -#include <functional> -#include <string> -#include <map> - -class XmppComponent; - -class AdhocCommand; -class AdhocSession; - -/** - * A function executed as an ad-hoc command step. It takes a <command/> - * XmlNode and modifies it accordingly (inserting for example an <error/> - * node, or a data form…). - */ -using AdhocStep = std::function<void(XmppComponent&, AdhocSession&, XmlNode&)>; - -class AdhocSession -{ -public: - explicit AdhocSession(const AdhocCommand& command, const std::string& owner_jid, - const std::string& to_jid); - ~AdhocSession() = default; - - AdhocSession(const AdhocSession&) = delete; - AdhocSession(AdhocSession&&) = delete; - AdhocSession& operator=(const AdhocSession&) = delete; - AdhocSession& operator=(AdhocSession&&) = delete; - - /** - * Return the function to be executed, found in our AdhocCommand, for the - * current_step. And increment the current_step. - */ - const AdhocStep& get_next_step(); - /** - * Return the number of remaining steps. - */ - size_t remaining_steps() const; - /** - * This may be modified by an AdhocStep, to indicate that this session - * should no longer exist, because we encountered an error, and we can't - * execute any more step of it. - */ - void terminate(); - bool is_terminated() const; - std::string get_target_jid() const - { - return this->to_jid; - } - std::string get_owner_jid() const - { - return this->owner_jid; - } - -private: - /** - * A reference of the command concerned by this session. Used for example - * to get the next step of that command, things like that. - */ - const AdhocCommand& command; - /** - * The full JID of the XMPP user that created this session by executing - * the first step of a command. Only that JID must be allowed to access - * this session. - */ - const std::string& owner_jid; - /** - * The 'to' attribute in the request stanza. This is the target of the current session. - */ - const std::string& to_jid; - /** - * The current step we are at. It starts at zero. It is used to index the - * associated AdhocCommand::callbacks vector. - */ - size_t current_step; - bool terminated; - -public: - /** - * A map to store various things that we may want to remember between two - * steps of the same session. A step can insert any value associated to - * any key in there. - */ - std::map<std::string, std::string> vars; -}; diff --git a/louloulibs/xmpp/auth.cpp b/louloulibs/xmpp/auth.cpp deleted file mode 100644 index c20f95d..0000000 --- a/louloulibs/xmpp/auth.cpp +++ /dev/null @@ -1,21 +0,0 @@ -#include <xmpp/auth.hpp> - -#include <utils/sha1.hpp> - -#include <iomanip> -#include <sstream> - -std::string get_handshake_digest(const std::string& stream_id, const std::string& secret) -{ - sha1nfo sha1; - sha1_init(&sha1); - sha1_write(&sha1, stream_id.data(), stream_id.size()); - sha1_write(&sha1, secret.data(), secret.size()); - const uint8_t* result = sha1_result(&sha1); - - std::ostringstream digest; - for (int i = 0; i < HASH_LENGTH; i++) - digest << std::hex << std::setfill('0') << std::setw(2) << static_cast<int>(result[i]); - - return digest.str(); -} diff --git a/louloulibs/xmpp/auth.hpp b/louloulibs/xmpp/auth.hpp deleted file mode 100644 index 34a2116..0000000 --- a/louloulibs/xmpp/auth.hpp +++ /dev/null @@ -1,6 +0,0 @@ -#pragma once - -#include <string> - -std::string get_handshake_digest(const std::string& stream_id, const std::string& secret); - diff --git a/louloulibs/xmpp/body.hpp b/louloulibs/xmpp/body.hpp deleted file mode 100644 index 068d1a4..0000000 --- a/louloulibs/xmpp/body.hpp +++ /dev/null @@ -1,12 +0,0 @@ -#pragma once - - -namespace Xmpp -{ -// Contains: -// - an XMPP-valid UTF-8 body -// - an XML node representing the XHTML-IM body, or null - using body = std::tuple<const std::string, std::unique_ptr<XmlNode>>; -} - - diff --git a/louloulibs/xmpp/jid.cpp b/louloulibs/xmpp/jid.cpp deleted file mode 100644 index 7b62f3e..0000000 --- a/louloulibs/xmpp/jid.cpp +++ /dev/null @@ -1,99 +0,0 @@ -#include <xmpp/jid.hpp> -#include <algorithm> -#include <cstring> -#include <map> - -#include <louloulibs.h> -#ifdef LIBIDN_FOUND - #include <stringprep.h> -#endif - -#include <logger/logger.hpp> - -Jid::Jid(const std::string& jid) -{ - std::string::size_type slash = jid.find('/'); - if (slash != std::string::npos) - { - this->resource = jid.substr(slash + 1); - } - - std::string::size_type at = jid.find('@'); - if (at != std::string::npos && at < slash) - { - this->local = jid.substr(0, at); - at++; - } - else - at = 0; - - this->domain = jid.substr(at, slash - at); -} - -static constexpr size_t max_jid_part_len = 1023; - -std::string jidprep(const std::string& original) -{ -#ifdef LIBIDN_FOUND - using CacheType = std::map<std::string, std::string>; - static CacheType cache; - std::pair<CacheType::iterator, bool> cached = cache.insert({original, {}}); - if (std::get<1>(cached) == false) - { // Insertion failed: the result is already in the cache, return it - return std::get<0>(cached)->second; - } - - const std::string error_msg("Failed to convert " + original + " into a valid JID:"); - Jid jid(original); - - char local[max_jid_part_len] = {}; - memcpy(local, jid.local.data(), std::min(max_jid_part_len, jid.local.size())); - Stringprep_rc rc = static_cast<Stringprep_rc>(::stringprep(local, max_jid_part_len, - static_cast<Stringprep_profile_flags>(0), stringprep_xmpp_nodeprep)); - if (rc != STRINGPREP_OK) - { - log_error(error_msg + stringprep_strerror(rc)); - return ""; - } - - char domain[max_jid_part_len] = {}; - memcpy(domain, jid.domain.data(), std::min(max_jid_part_len, jid.domain.size())); - rc = static_cast<Stringprep_rc>(::stringprep(domain, max_jid_part_len, - static_cast<Stringprep_profile_flags>(0), stringprep_nameprep)); - if (rc != STRINGPREP_OK) - { - log_error(error_msg + stringprep_strerror(rc)); - return ""; - } - std::replace_if(std::begin(domain), domain + ::strlen(domain), - [](const char c) -> bool - { - return !((c >= 'a' && c <= 'z') || c == '-' || - (c >= '0' && c <= '9') || c == '.'); - }, '-'); - - // If there is no resource, stop here - if (jid.resource.empty()) - { - std::get<0>(cached)->second = std::string(local) + "@" + domain; - return std::get<0>(cached)->second; - } - - // Otherwise, also process the resource part - char resource[max_jid_part_len] = {}; - memcpy(resource, jid.resource.data(), std::min(max_jid_part_len, jid.resource.size())); - rc = static_cast<Stringprep_rc>(::stringprep(resource, max_jid_part_len, - static_cast<Stringprep_profile_flags>(0), stringprep_xmpp_resourceprep)); - if (rc != STRINGPREP_OK) - { - log_error(error_msg + stringprep_strerror(rc)); - return ""; - } - std::get<0>(cached)->second = std::string(local) + "@" + domain + "/" + resource; - return std::get<0>(cached)->second; - -#else - (void)original; - return ""; -#endif -} diff --git a/louloulibs/xmpp/jid.hpp b/louloulibs/xmpp/jid.hpp deleted file mode 100644 index 85e835c..0000000 --- a/louloulibs/xmpp/jid.hpp +++ /dev/null @@ -1,49 +0,0 @@ -#pragma once - - -#include <string> - -/** - * Parse a JID into its different subart - */ -class Jid -{ -public: - explicit Jid(const std::string& jid); - - Jid(const Jid&) = delete; - Jid(Jid&&) = delete; - Jid& operator=(const Jid&) = delete; - Jid& operator=(Jid&&) = delete; - - std::string domain; - std::string local; - std::string resource; - - std::string bare() const - { - return this->local + "@" + this->domain; - } - std::string full() const - { - std::string res = this->domain; - if (!this->local.empty()) - res = this->local + "@" + this->domain; - if (!this->resource.empty()) - res += "/" + this->resource; - return res; - } -}; - -/** - * Prepare the given UTF-8 string according to the XMPP node stringprep - * identifier profile. This is used to send properly-formed JID to the XMPP - * server. - * - * If the stringprep library is not found, we return an empty string. When - * this function is used, the result must always be checked for an empty - * value, and if this is the case it must not be used as a JID. - */ -std::string jidprep(const std::string& original); - - diff --git a/louloulibs/xmpp/xmpp_component.cpp b/louloulibs/xmpp/xmpp_component.cpp deleted file mode 100644 index fa8b0a5..0000000 --- a/louloulibs/xmpp/xmpp_component.cpp +++ /dev/null @@ -1,669 +0,0 @@ -#include <utils/timed_events.hpp> -#include <utils/scopeguard.hpp> -#include <utils/tolower.hpp> -#include <logger/logger.hpp> - -#include <xmpp/xmpp_component.hpp> -#include <config/config.hpp> -#include <utils/time.hpp> -#include <xmpp/auth.hpp> -#include <xmpp/jid.hpp> - -#include <stdexcept> -#include <iostream> -#include <set> - -#include <uuid/uuid.h> - -#include <cstdlib> -#include <set> - -#include <louloulibs.h> -#ifdef SYSTEMD_FOUND -# include <systemd/sd-daemon.h> -#endif - -using namespace std::string_literals; - -static std::set<std::string> kickable_errors{ - "gone", - "internal-server-error", - "item-not-found", - "jid-malformed", - "recipient-unavailable", - "redirect", - "remote-server-not-found", - "remote-server-timeout", - "service-unavailable", - "malformed-error" - }; - -XmppComponent::XmppComponent(std::shared_ptr<Poller> poller, const std::string& hostname, const std::string& secret): - TCPSocketHandler(poller), - ever_auth(false), - first_connection_try(true), - secret(secret), - authenticated(false), - doc_open(false), - served_hostname(hostname), - stanza_handlers{}, - adhoc_commands_handler(*this) -{ - this->parser.add_stream_open_callback(std::bind(&XmppComponent::on_remote_stream_open, this, - std::placeholders::_1)); - this->parser.add_stanza_callback(std::bind(&XmppComponent::on_stanza, this, - std::placeholders::_1)); - this->parser.add_stream_close_callback(std::bind(&XmppComponent::on_remote_stream_close, this, - std::placeholders::_1)); - this->stanza_handlers.emplace("handshake", - std::bind(&XmppComponent::handle_handshake, this,std::placeholders::_1)); - this->stanza_handlers.emplace("error", - std::bind(&XmppComponent::handle_error, this,std::placeholders::_1)); -} - -void XmppComponent::start() -{ - this->connect(Config::get("xmpp_server_ip", "127.0.0.1"), Config::get("port", "5347"), false); -} - -bool XmppComponent::is_document_open() const -{ - return this->doc_open; -} - -void XmppComponent::send_stanza(const Stanza& stanza) -{ - std::string str = stanza.to_string(); - log_debug("XMPP SENDING: ", str); - this->send_data(std::move(str)); -} - -void XmppComponent::on_connection_failed(const std::string& reason) -{ - this->first_connection_try = false; - log_error("Failed to connect to the XMPP server: ", reason); -#ifdef SYSTEMD_FOUND - sd_notifyf(0, "STATUS=Failed to connect to the XMPP server: %s", reason.data()); -#endif -} - -void XmppComponent::on_connected() -{ - log_info("connected to XMPP server"); - this->first_connection_try = true; - auto data = "<stream:stream to='"s + this->served_hostname + \ - "' xmlns:stream='http://etherx.jabber.org/streams' xmlns='" COMPONENT_NS "'>"; - log_debug("XMPP SENDING: ", data); - this->send_data(std::move(data)); - this->doc_open = true; - // We may have some pending data to send: this happens when we try to send - // some data before we are actually connected. We send that data right now, if any - this->send_pending_data(); -} - -void XmppComponent::on_connection_close(const std::string& error) -{ - if (error.empty()) - log_info("XMPP server closed connection"); - else - log_info("XMPP server closed connection: ", error); -} - -void XmppComponent::parse_in_buffer(const size_t size) -{ - if (!this->in_buf.empty()) - { // This may happen if the parser could not allocate enough space for - // us. We try to feed it the data that was read into our in_buf - // instead. If this fails again we are in trouble. - this->parser.feed(this->in_buf.data(), this->in_buf.size(), false); - this->in_buf.clear(); - } - else - { // Just tell the parser to parse the data that was placed into the - // buffer it provided to us with GetBuffer - this->parser.parse(size, false); - } -} - -void XmppComponent::on_remote_stream_open(const XmlNode& node) -{ - log_debug("XMPP RECEIVING: ", node.to_string()); - this->stream_id = node.get_tag("id"); - if (this->stream_id.empty()) - { - log_error("Error: no attribute 'id' found"); - this->send_stream_error("bad-format", "missing 'id' attribute"); - this->close_document(); - return ; - } - - // Try to authenticate - auto data = "<handshake xmlns='" COMPONENT_NS "'>"s + get_handshake_digest(this->stream_id, this->secret) + "</handshake>"; - log_debug("XMPP SENDING: ", data); - this->send_data(std::move(data)); -} - -void XmppComponent::on_remote_stream_close(const XmlNode& node) -{ - log_debug("XMPP RECEIVING: ", node.to_string()); - this->doc_open = false; -} - -void XmppComponent::reset() -{ - this->parser.reset(); -} - -void XmppComponent::on_stanza(const Stanza& stanza) -{ - log_debug("XMPP RECEIVING: ", stanza.to_string()); - std::function<void(const Stanza&)> handler; - try - { - handler = this->stanza_handlers.at(stanza.get_name()); - } - catch (const std::out_of_range& exception) - { - log_warning("No handler for stanza of type ", stanza.get_name()); - return; - } - handler(stanza); -} - -void XmppComponent::send_stream_error(const std::string& name, const std::string& explanation) -{ - XmlNode node("stream:error", nullptr); - XmlNode error(name, nullptr); - error["xmlns"] = STREAM_NS; - if (!explanation.empty()) - error.set_inner(explanation); - node.add_child(std::move(error)); - this->send_stanza(node); -} - -void XmppComponent::send_stanza_error(const std::string& kind, const std::string& to, const std::string& from, - const std::string& id, const std::string& error_type, - const std::string& defined_condition, const std::string& text, - const bool fulljid) -{ - Stanza node(kind); - if (!to.empty()) - node["to"] = to; - if (!from.empty()) - { - if (fulljid) - node["from"] = from; - else - node["from"] = from + "@" + this->served_hostname; - } - if (!id.empty()) - node["id"] = id; - node["type"] = "error"; - XmlNode error("error"); - error["type"] = error_type; - XmlNode inner_error(defined_condition); - inner_error["xmlns"] = STANZA_NS; - error.add_child(std::move(inner_error)); - if (!text.empty()) - { - XmlNode text_node("text"); - text_node["xmlns"] = STANZA_NS; - text_node.set_inner(text); - error.add_child(std::move(text_node)); - } - node.add_child(std::move(error)); - this->send_stanza(node); -} - -void XmppComponent::close_document() -{ - log_debug("XMPP SENDING: </stream:stream>"); - this->send_data("</stream:stream>"); - this->doc_open = false; -} - -void XmppComponent::handle_handshake(const Stanza&) -{ - this->authenticated = true; - this->ever_auth = true; - log_info("Authenticated with the XMPP server"); -#ifdef SYSTEMD_FOUND - sd_notify(0, "READY=1"); - // Install an event that sends a keepalive to systemd. If biboumi crashes - // or hangs for too long, systemd will restart it. - uint64_t usec; - if (sd_watchdog_enabled(0, &usec) > 0) - { - TimedEventsManager::instance().add_event(TimedEvent( - std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::microseconds(usec / 2)), - []() { sd_notify(0, "WATCHDOG=1"); })); - } -#endif - this->after_handshake(); -} - -void XmppComponent::handle_error(const Stanza& stanza) -{ - const XmlNode* text = stanza.get_child("text", STREAMS_NS); - std::string error_message("Unspecified error"); - if (text) - error_message = text->get_inner(); - log_error("Stream error received from the XMPP server: ", error_message); -#ifdef SYSTEMD_FOUND - if (!this->ever_auth) - sd_notifyf(0, "STATUS=Failed to authenticate to the XMPP server: %s", error_message.data()); -#endif - -} - -void* XmppComponent::get_receive_buffer(const size_t size) const -{ - return this->parser.get_buffer(size); -} - -void XmppComponent::send_message(const std::string& from, Xmpp::body&& body, const std::string& to, - const std::string& type, const bool fulljid, const bool nocopy) -{ - XmlNode node("message"); - node["to"] = to; - if (fulljid) - node["from"] = from; - else - node["from"] = from + "@" + this->served_hostname; - if (!type.empty()) - node["type"] = type; - XmlNode body_node("body"); - body_node.set_inner(std::get<0>(body)); - node.add_child(std::move(body_node)); - if (std::get<1>(body)) - { - XmlNode html("html"); - html["xmlns"] = XHTMLIM_NS; - // Pass the ownership of the pointer to this xmlnode - html.add_child(std::move(std::get<1>(body))); - node.add_child(std::move(html)); - } - - if (nocopy) - { - XmlNode private_node("private"); - private_node["xmlns"] = "urn:xmpp:carbons:2"; - node.add_child(std::move(private_node)); - - XmlNode nocopy("no-copy"); - nocopy["xmlns"] = "urn:xmpp:hints"; - node.add_child(std::move(nocopy)); - } - - this->send_stanza(node); -} - -void XmppComponent::send_user_join(const std::string& from, - const std::string& nick, - const std::string& realjid, - const std::string& affiliation, - const std::string& role, - const std::string& to, - const bool self) -{ - XmlNode node("presence"); - node["to"] = to; - node["from"] = from + "@" + this->served_hostname + "/" + nick; - - XmlNode x("x"); - x["xmlns"] = MUC_USER_NS; - - XmlNode item("item"); - if (!affiliation.empty()) - item["affiliation"] = affiliation; - if (!role.empty()) - item["role"] = role; - if (!realjid.empty()) - { - const std::string preped_jid = jidprep(realjid); - if (!preped_jid.empty()) - item["jid"] = preped_jid; - } - x.add_child(std::move(item)); - - if (self) - { - XmlNode status("status"); - status["code"] = "110"; - x.add_child(std::move(status)); - } - node.add_child(std::move(x)); - this->send_stanza(node); -} - -void XmppComponent::send_invalid_room_error(const std::string& muc_name, - const std::string& nick, - const std::string& to) -{ - Stanza presence("presence"); - if (!muc_name.empty()) - presence["from"] = muc_name + "@" + this->served_hostname + "/" + nick; - else - presence["from"] = this->served_hostname; - presence["to"] = to; - presence["type"] = "error"; - XmlNode x("x"); - x["xmlns"] = MUC_NS; - presence.add_child(std::move(x)); - XmlNode error("error"); - error["by"] = muc_name + "@" + this->served_hostname; - error["type"] = "cancel"; - XmlNode item_not_found("item-not-found"); - item_not_found["xmlns"] = STANZA_NS; - error.add_child(std::move(item_not_found)); - XmlNode text("text"); - text["xmlns"] = STANZA_NS; - text["xml:lang"] = "en"; - text.set_inner(muc_name + - " is not a valid IRC channel name. A correct room jid is of the form: #<chan>%<server>@" + - this->served_hostname); - error.add_child(std::move(text)); - presence.add_child(std::move(error)); - this->send_stanza(presence); -} - -void XmppComponent::send_topic(const std::string& from, Xmpp::body&& topic, const std::string& to, const std::string& who) -{ - XmlNode message("message"); - message["to"] = to; - if (who.empty()) - message["from"] = from + "@" + this->served_hostname; - else - message["from"] = from + "@" + this->served_hostname + "/" + who; - message["type"] = "groupchat"; - XmlNode subject("subject"); - subject.set_inner(std::get<0>(topic)); - message.add_child(std::move(subject)); - this->send_stanza(message); -} - -void XmppComponent::send_muc_message(const std::string& muc_name, const std::string& nick, Xmpp::body&& xmpp_body, const std::string& jid_to) -{ - Stanza message("message"); - message["to"] = jid_to; - if (!nick.empty()) - message["from"] = muc_name + "@" + this->served_hostname + "/" + nick; - else // Message from the room itself - message["from"] = muc_name + "@" + this->served_hostname; - message["type"] = "groupchat"; - XmlNode body("body"); - body.set_inner(std::get<0>(xmpp_body)); - message.add_child(std::move(body)); - if (std::get<1>(xmpp_body)) - { - XmlNode html("html"); - html["xmlns"] = XHTMLIM_NS; - // Pass the ownership of the pointer to this xmlnode - html.add_child(std::move(std::get<1>(xmpp_body))); - message.add_child(std::move(html)); - } - this->send_stanza(message); -} - -void XmppComponent::send_history_message(const std::string& muc_name, const std::string& nick, const std::string& body_txt, const std::string& jid_to, std::time_t timestamp) -{ - Stanza message("message"); - message["to"] = jid_to; - if (!nick.empty()) - message["from"] = muc_name + "@" + this->served_hostname + "/" + nick; - else - message["from"] = muc_name + "@" + this->served_hostname; - message["type"] = "groupchat"; - - XmlNode body("body"); - body.set_inner(body_txt); - message.add_child(std::move(body)); - - XmlNode delay("delay"); - delay["xmlns"] = DELAY_NS; - delay["from"] = muc_name + "@" + this->served_hostname; - delay["stamp"] = utils::to_string(timestamp); - - message.add_child(std::move(delay)); - this->send_stanza(message); -} - -void XmppComponent::send_muc_leave(const std::string& muc_name, std::string&& nick, Xmpp::body&& message, const std::string& jid_to, const bool self) -{ - Stanza presence("presence"); - presence["to"] = jid_to; - presence["from"] = muc_name + "@" + this->served_hostname + "/" + nick; - presence["type"] = "unavailable"; - const std::string message_str = std::get<0>(message); - XmlNode x("x"); - x["xmlns"] = MUC_USER_NS; - if (self) - { - XmlNode status("status"); - status["code"] = "110"; - x.add_child(std::move(status)); - } - presence.add_child(std::move(x)); - if (!message_str.empty()) - { - XmlNode status("status"); - status.set_inner(message_str); - presence.add_child(std::move(status)); - } - this->send_stanza(presence); -} - -void XmppComponent::send_nick_change(const std::string& muc_name, - const std::string& old_nick, - const std::string& new_nick, - const std::string& affiliation, - const std::string& role, - const std::string& jid_to, - const bool self) -{ - Stanza presence("presence"); - presence["to"] = jid_to; - presence["from"] = muc_name + "@" + this->served_hostname + "/" + old_nick; - presence["type"] = "unavailable"; - XmlNode x("x"); - x["xmlns"] = MUC_USER_NS; - XmlNode item("item"); - item["nick"] = new_nick; - x.add_child(std::move(item)); - XmlNode status("status"); - status["code"] = "303"; - x.add_child(std::move(status)); - if (self) - { - XmlNode status2("status"); - status2["code"] = "110"; - x.add_child(std::move(status2)); - } - presence.add_child(std::move(x)); - this->send_stanza(presence); - - this->send_user_join(muc_name, new_nick, "", affiliation, role, jid_to, self); -} - -void XmppComponent::kick_user(const std::string& muc_name, const std::string& target, const std::string& txt, - const std::string& author, const std::string& jid_to, const bool self) -{ - Stanza presence("presence"); - presence["from"] = muc_name + "@" + this->served_hostname + "/" + target; - presence["to"] = jid_to; - presence["type"] = "unavailable"; - XmlNode x("x"); - x["xmlns"] = MUC_USER_NS; - XmlNode item("item"); - item["affiliation"] = "none"; - item["role"] = "none"; - XmlNode actor("actor"); - actor["nick"] = author; - actor["jid"] = author; // backward compatibility with old clients - item.add_child(std::move(actor)); - XmlNode reason("reason"); - reason.set_inner(txt); - item.add_child(std::move(reason)); - x.add_child(std::move(item)); - XmlNode status("status"); - status["code"] = "307"; - x.add_child(std::move(status)); - if (self) - { - XmlNode status("status"); - status["code"] = "110"; - x.add_child(std::move(status)); - } - presence.add_child(std::move(x)); - this->send_stanza(presence); -} - -void XmppComponent::send_presence_error(const std::string& muc_name, - const std::string& nickname, - const std::string& jid_to, - const std::string& type, - const std::string& condition, - const std::string& error_code, - const std::string& /* text */) -{ - Stanza presence("presence"); - presence["from"] = muc_name + "@" + this->served_hostname + "/" + nickname; - presence["to"] = jid_to; - presence["type"] = "error"; - XmlNode x("x"); - x["xmlns"] = MUC_NS; - presence.add_child(std::move(x)); - XmlNode error("error"); - error["by"] = muc_name + "@" + this->served_hostname; - error["type"] = type; - if (!error_code.empty()) - error["code"] = error_code; - XmlNode subnode(condition); - subnode["xmlns"] = STANZA_NS; - error.add_child(std::move(subnode)); - presence.add_child(std::move(error)); - this->send_stanza(presence); -} - -void XmppComponent::send_affiliation_role_change(const std::string& muc_name, - const std::string& target, - const std::string& affiliation, - const std::string& role, - const std::string& jid_to) -{ - Stanza presence("presence"); - presence["from"] = muc_name + "@" + this->served_hostname + "/" + target; - presence["to"] = jid_to; - XmlNode x("x"); - x["xmlns"] = MUC_USER_NS; - XmlNode item("item"); - item["affiliation"] = affiliation; - item["role"] = role; - x.add_child(std::move(item)); - presence.add_child(std::move(x)); - this->send_stanza(presence); -} - -void XmppComponent::send_version(const std::string& id, const std::string& jid_to, const std::string& jid_from, - const std::string& version) -{ - Stanza iq("iq"); - iq["type"] = "result"; - iq["id"] = id; - iq["to"] = jid_to; - iq["from"] = jid_from; - XmlNode query("query"); - query["xmlns"] = VERSION_NS; - if (version.empty()) - { - XmlNode name("name"); - name.set_inner("biboumi"); - query.add_child(std::move(name)); - XmlNode version("version"); - version.set_inner(SOFTWARE_VERSION); - query.add_child(std::move(version)); - XmlNode os("os"); - os.set_inner(SYSTEM_NAME); - query.add_child(std::move(os)); - } - else - { - XmlNode name("name"); - name.set_inner(version); - query.add_child(std::move(name)); - } - iq.add_child(std::move(query)); - this->send_stanza(iq); -} - -void XmppComponent::send_adhoc_commands_list(const std::string& id, const std::string& requester_jid, - const std::string& from_jid, - const bool with_admin_only, const AdhocCommandsHandler& adhoc_handler) -{ - Stanza iq("iq"); - iq["type"] = "result"; - iq["id"] = id; - iq["to"] = requester_jid; - iq["from"] = from_jid; - XmlNode query("query"); - query["xmlns"] = DISCO_ITEMS_NS; - query["node"] = ADHOC_NS; - for (const auto& kv: adhoc_handler.get_commands()) - { - if (kv.second.is_admin_only() && !with_admin_only) - continue; - XmlNode item("item"); - item["jid"] = from_jid; - item["node"] = kv.first; - item["name"] = kv.second.name; - query.add_child(std::move(item)); - } - iq.add_child(std::move(query)); - this->send_stanza(iq); -} - -void XmppComponent::send_iq_version_request(const std::string& from, - const std::string& jid_to) -{ - Stanza iq("iq"); - iq["type"] = "get"; - iq["id"] = "version_"s + XmppComponent::next_id(); - iq["from"] = from + "@" + this->served_hostname; - iq["to"] = jid_to; - XmlNode query("query"); - query["xmlns"] = VERSION_NS; - iq.add_child(std::move(query)); - this->send_stanza(iq); -} - -void XmppComponent::send_iq_result_full_jid(const std::string& id, const std::string& to_jid, const std::string& from_full_jid) -{ - Stanza iq("iq"); - iq["from"] = from_full_jid; - iq["to"] = to_jid; - iq["id"] = id; - iq["type"] = "result"; - this->send_stanza(iq); -} - -void XmppComponent::send_iq_result(const std::string& id, const std::string& to_jid, const std::string& from_local_part) -{ - Stanza iq("iq"); - if (!from_local_part.empty()) - iq["from"] = from_local_part + "@" + this->served_hostname; - else - iq["from"] = this->served_hostname; - iq["to"] = to_jid; - iq["id"] = id; - iq["type"] = "result"; - this->send_stanza(iq); -} - -std::string XmppComponent::next_id() -{ - char uuid_str[37]; - uuid_t uuid; - uuid_generate(uuid); - uuid_unparse(uuid, uuid_str); - return uuid_str; -} diff --git a/louloulibs/xmpp/xmpp_component.hpp b/louloulibs/xmpp/xmpp_component.hpp deleted file mode 100644 index 5f5f937..0000000 --- a/louloulibs/xmpp/xmpp_component.hpp +++ /dev/null @@ -1,249 +0,0 @@ -#pragma once - - -#include <xmpp/adhoc_commands_handler.hpp> -#include <network/tcp_socket_handler.hpp> -#include <xmpp/xmpp_parser.hpp> -#include <xmpp/body.hpp> - -#include <unordered_map> -#include <memory> -#include <string> -#include <ctime> -#include <map> - -#define STREAM_NS "http://etherx.jabber.org/streams" -#define COMPONENT_NS "jabber:component:accept" -#define MUC_NS "http://jabber.org/protocol/muc" -#define MUC_USER_NS MUC_NS"#user" -#define MUC_ADMIN_NS MUC_NS"#admin" -#define DISCO_NS "http://jabber.org/protocol/disco" -#define DISCO_ITEMS_NS DISCO_NS"#items" -#define DISCO_INFO_NS DISCO_NS"#info" -#define XHTMLIM_NS "http://jabber.org/protocol/xhtml-im" -#define STANZA_NS "urn:ietf:params:xml:ns:xmpp-stanzas" -#define STREAMS_NS "urn:ietf:params:xml:ns:xmpp-streams" -#define VERSION_NS "jabber:iq:version" -#define ADHOC_NS "http://jabber.org/protocol/commands" -#define PING_NS "urn:xmpp:ping" -#define DELAY_NS "urn:xmpp:delay" -#define MAM_NS "urn:xmpp:mam:1" -#define FORWARD_NS "urn:xmpp:forward:0" -#define CLIENT_NS "jabber:client" -#define DATAFORM_NS "jabber:x:data" -#define RSM_NS "http://jabber.org/protocol/rsm" -#define MUC_TRAFFIC_NS "http://jabber.org/protocol/muc#traffic" - -/** - * An XMPP component, communicating with an XMPP server using the protocole - * described in XEP-0114: Jabber Component Protocol - * - * TODO: implement XEP-0225: Component Connections - */ -class XmppComponent: public TCPSocketHandler -{ -public: - explicit XmppComponent(std::shared_ptr<Poller> poller, const std::string& hostname, const std::string& secret); - virtual ~XmppComponent() = default; - - XmppComponent(const XmppComponent&) = delete; - XmppComponent(XmppComponent&&) = delete; - XmppComponent& operator=(const XmppComponent&) = delete; - XmppComponent& operator=(XmppComponent&&) = delete; - - void on_connection_failed(const std::string& reason) override final; - void on_connected() override final; - void on_connection_close(const std::string& error) override final; - void parse_in_buffer(const size_t size) override final; - - /** - * Returns a unique id, to be used in the 'id' element of our iq stanzas. - */ - static std::string next_id(); - bool is_document_open() const; - /** - * Connect to the XMPP server. - */ - void start(); - /** - * Reset the component so we can use the component on a new XMPP stream - */ - void reset(); - /** - * Serialize the stanza and add it to the out_buf to be sent to the - * server. - */ - void send_stanza(const Stanza& stanza); - /** - * Handle the opening of the remote stream - */ - void on_remote_stream_open(const XmlNode& node); - /** - * Handle the closing of the remote stream - */ - void on_remote_stream_close(const XmlNode& node); - /** - * Handle received stanzas - */ - void on_stanza(const Stanza& stanza); - /** - * Send an error stanza. Message being the name of the element inside the - * stanza, and explanation being a short human-readable sentence - * describing the error. - */ - void send_stream_error(const std::string& message, const std::string& explanation); - /** - * Send error stanza, described in http://xmpp.org/rfcs/rfc6120.html#stanzas-error - */ - void send_stanza_error(const std::string& kind, const std::string& to, const std::string& from, - const std::string& id, const std::string& error_type, - const std::string& defined_condition, const std::string& text, - const bool fulljid=true); - /** - * Send the closing signal for our document (not closing the connection though). - */ - void close_document(); - /** - * Send a message from from@served_hostname, with the given body - * - * If fulljid is false, the provided 'from' doesn't contain the - * server-part of the JID and must be added. - */ - void send_message(const std::string& from, Xmpp::body&& body, const std::string& to, - const std::string& type, const bool fulljid, const bool nocopy=false); - /** - * Send a join from a new participant - */ - void send_user_join(const std::string& from, - const std::string& nick, - const std::string& realjid, - const std::string& affiliation, - const std::string& role, - const std::string& to, - const bool self); - /** - * Send an error to indicate that the user tried to join an invalid room - */ - void send_invalid_room_error(const std::string& muc_jid, - const std::string& nick, - const std::string& to); - /** - * Send the MUC topic to the user - */ - void send_topic(const std::string& from, Xmpp::body&& xmpp_topic, const std::string& to, const std::string& who); - /** - * Send a (non-private) message to the MUC - */ - void send_muc_message(const std::string& muc_name, const std::string& nick, Xmpp::body&& body, const std::string& jid_to); - /** - * Send a message, with a <delay/> element, part of a MUC history - */ - void send_history_message(const std::string& muc_name, const std::string& nick, const std::string& body, - const std::string& jid_to, const std::time_t timestamp); - /** - * Send an unavailable presence for this nick - */ - void send_muc_leave(const std::string& muc_name, std::string&& nick, Xmpp::body&& message, const std::string& jid_to, const bool self); - /** - * Indicate that a participant changed his nick - */ - void send_nick_change(const std::string& muc_name, - const std::string& old_nick, - const std::string& new_nick, - const std::string& affiliation, - const std::string& role, - const std::string& jid_to, - const bool self); - /** - * An user is kicked from a room - */ - void kick_user(const std::string& muc_name, const std::string& target, const std::string& reason, - const std::string& author, const std::string& jid_to, const bool self); - /** - * Send a generic presence error - */ - void send_presence_error(const std::string& muc_name, - const std::string& nickname, - const std::string& jid_to, - const std::string& type, - const std::string& condition, - const std::string& error_code, - const std::string& text); - /** - * Send a presence from the MUC indicating a change in the role and/or - * affiliation of a participant - */ - void send_affiliation_role_change(const std::string& muc_name, - const std::string& target, - const std::string& affiliation, - const std::string& role, - const std::string& jid_to); - /** - * Send a result IQ with the gateway disco informations. - */ - void send_self_disco_info(const std::string& id, const std::string& jid_to); - /** - * Send a result IQ with the given version, or the gateway version if the - * passed string is empty. - */ - void send_version(const std::string& id, const std::string& jid_to, const std::string& jid_from, - const std::string& version=""); - /** - * Send the list of all available ad-hoc commands to that JID. The list is - * different depending on what JID made the request. - */ - void send_adhoc_commands_list(const std::string& id, const std::string& requester_jid, const std::string& from_jid, - const bool with_admin_only, const AdhocCommandsHandler& adhoc_handler); - /** - * Send an iq version request - */ - void send_iq_version_request(const std::string& from, - const std::string& jid_to); - /** - * Send an empty iq of type result - */ - void send_iq_result(const std::string& id, const std::string& to_jid, const std::string& from); - void send_iq_result_full_jid(const std::string& id, const std::string& to_jid, - const std::string& from_full_jid); - - void handle_handshake(const Stanza& stanza); - void handle_error(const Stanza& stanza); - - virtual void after_handshake() {} - - const std::string& get_served_hostname() const - { return this->served_hostname; } - - /** - * Whether or not we ever succeeded our authentication to the XMPP server - */ - bool ever_auth; - /** - * Whether or not this is the first consecutive try on connecting to the - * XMPP server. We use this to delay the connection attempt for a few - * seconds, if it is not the first try. - */ - bool first_connection_try; - -private: - /** - * Return a buffer provided by the XML parser, to read data directly into - * it, and avoiding some unnecessary copy. - */ - void* get_receive_buffer(const size_t size) const override final; - XmppParser parser; - std::string stream_id; - std::string secret; - bool authenticated; - /** - * Whether or not OUR XMPP document is open - */ - bool doc_open; -protected: - std::string served_hostname; - - std::unordered_map<std::string, std::function<void(const Stanza&)>> stanza_handlers; - AdhocCommandsHandler adhoc_commands_handler; -}; - - diff --git a/louloulibs/xmpp/xmpp_parser.cpp b/louloulibs/xmpp/xmpp_parser.cpp deleted file mode 100644 index 0488be9..0000000 --- a/louloulibs/xmpp/xmpp_parser.cpp +++ /dev/null @@ -1,172 +0,0 @@ -#include <xmpp/xmpp_parser.hpp> -#include <xmpp/xmpp_stanza.hpp> - -#include <logger/logger.hpp> - -/** - * Expat handlers. Called by the Expat library, never by ourself. - * They just forward the call to the XmppParser corresponding methods. - */ - -static void start_element_handler(void* user_data, const XML_Char* name, const XML_Char** atts) -{ - static_cast<XmppParser*>(user_data)->start_element(name, atts); -} - -static void end_element_handler(void* user_data, const XML_Char* name) -{ - static_cast<XmppParser*>(user_data)->end_element(name); -} - -static void character_data_handler(void *user_data, const XML_Char *s, int len) -{ - static_cast<XmppParser*>(user_data)->char_data(s, len); -} - -/** - * XmppParser class - */ - -XmppParser::XmppParser(): - level(0), - current_node(nullptr), - root(nullptr) -{ - this->init_xml_parser(); -} - -void XmppParser::init_xml_parser() -{ - // Create the expat parser - this->parser = XML_ParserCreateNS("UTF-8", ':'); - XML_SetUserData(this->parser, static_cast<void*>(this)); - - // Install Expat handlers - XML_SetElementHandler(this->parser, &start_element_handler, &end_element_handler); - XML_SetCharacterDataHandler(this->parser, &character_data_handler); -} - -XmppParser::~XmppParser() -{ - XML_ParserFree(this->parser); -} - -int XmppParser::feed(const char* data, const int len, const bool is_final) -{ - int res = XML_Parse(this->parser, data, len, is_final); - if (res == XML_STATUS_ERROR && - (XML_GetErrorCode(this->parser) != XML_ERROR_FINISHED)) - log_error("Xml_Parse encountered an error: ", - XML_ErrorString(XML_GetErrorCode(this->parser))); - return res; -} - -int XmppParser::parse(const int len, const bool is_final) -{ - int res = XML_ParseBuffer(this->parser, len, is_final); - if (res == XML_STATUS_ERROR) - log_error("Xml_Parsebuffer encountered an error: ", - XML_ErrorString(XML_GetErrorCode(this->parser))); - return res; -} - -void XmppParser::reset() -{ - XML_ParserFree(this->parser); - this->init_xml_parser(); - this->current_node = nullptr; - this->root.reset(nullptr); - this->level = 0; -} - -void* XmppParser::get_buffer(const size_t size) const -{ - return XML_GetBuffer(this->parser, static_cast<int>(size)); -} - -void XmppParser::start_element(const XML_Char* name, const XML_Char** attribute) -{ - this->level++; - - auto new_node = std::make_unique<XmlNode>(name, this->current_node); - auto new_node_ptr = new_node.get(); - if (this->current_node) - this->current_node->add_child(std::move(new_node)); - else - this->root = std::move(new_node); - this->current_node = new_node_ptr; - for (size_t i = 0; attribute[i]; i += 2) - this->current_node->set_attribute(attribute[i], attribute[i+1]); - if (this->level == 1) - this->stream_open_event(*this->current_node); -} - -void XmppParser::end_element(const XML_Char*) -{ - this->level--; - if (this->level == 0) - { // End of the whole stream - this->stream_close_event(*this->current_node); - this->current_node = nullptr; - this->root.reset(); - } - else - { - auto parent = this->current_node->get_parent(); - if (this->level == 1) - { // End of a stanza - this->stanza_event(*this->current_node); - // Note: deleting all the children of our parent deletes ourself, - // so current_node is an invalid pointer after this line - parent->delete_all_children(); - } - this->current_node = parent; - } -} - -void XmppParser::char_data(const XML_Char* data, const size_t len) -{ - if (this->current_node->has_children()) - this->current_node->get_last_child()->add_to_tail({data, len}); - else - this->current_node->add_to_inner({data, len}); -} - -void XmppParser::stanza_event(const Stanza& stanza) const -{ - for (const auto& callback: this->stanza_callbacks) - { - try { - callback(stanza); - } catch (const std::exception& e) { - log_error("Unhandled exception: ", e.what()); - } - } -} - -void XmppParser::stream_open_event(const XmlNode& node) const -{ - for (const auto& callback: this->stream_open_callbacks) - callback(node); -} - -void XmppParser::stream_close_event(const XmlNode& node) const -{ - for (const auto& callback: this->stream_close_callbacks) - callback(node); -} - -void XmppParser::add_stanza_callback(std::function<void(const Stanza&)>&& callback) -{ - this->stanza_callbacks.emplace_back(std::move(callback)); -} - -void XmppParser::add_stream_open_callback(std::function<void(const XmlNode&)>&& callback) -{ - this->stream_open_callbacks.emplace_back(std::move(callback)); -} - -void XmppParser::add_stream_close_callback(std::function<void(const XmlNode&)>&& callback) -{ - this->stream_close_callbacks.emplace_back(std::move(callback)); -} diff --git a/louloulibs/xmpp/xmpp_parser.hpp b/louloulibs/xmpp/xmpp_parser.hpp deleted file mode 100644 index 9d67228..0000000 --- a/louloulibs/xmpp/xmpp_parser.hpp +++ /dev/null @@ -1,133 +0,0 @@ -#pragma once - - -#include <xmpp/xmpp_stanza.hpp> - -#include <functional> - -#include <expat.h> - -/** - * A SAX XML parser that builds XML nodes and spawns events when a complete - * stanza is received (an element of level 2), or when the document is - * opened/closed (an element of level 1) - * - * After a stanza_event has been spawned, we delete the whole stanza. This - * means that even with a very long document (in XMPP the document is - * potentially infinite), the memory is never exhausted as long as each - * stanza is reasonnably short. - * - * The element names generated by expat contain the namespace of the - * element, a colon (':') and then the actual name of the element. To get - * an element "x" with a namespace of "http://jabber.org/protocol/muc", you - * just look for an XmlNode named "http://jabber.org/protocol/muc:x" - * - * TODO: enforce the size-limit for the stanza (limit the number of childs - * it can contain). For example forbid the parser going further than level - * 20 (arbitrary number here), and each XML node to have more than 15 childs - * (arbitrary number again). - */ -class XmppParser -{ -public: - explicit XmppParser(); - ~XmppParser(); - XmppParser(const XmppParser&) = delete; - XmppParser& operator=(const XmppParser&) = delete; - XmppParser(XmppParser&&) = delete; - XmppParser& operator=(XmppParser&&) = delete; - -public: - /** - * Feed the parser with some XML data - */ - int feed(const char* data, const int len, const bool is_final); - /** - * Parse the data placed in the parser buffer - */ - int parse(const int size, const bool is_final); - /** - * Reset the parser, so it can be used from scratch afterward - */ - void reset(); - /** - * Get a buffer provided by the xml parser. - */ - void* get_buffer(const size_t size) const; - /** - * Add one callback for the various events that this parser can spawn. - */ - void add_stanza_callback(std::function<void(const Stanza&)>&& callback); - void add_stream_open_callback(std::function<void(const XmlNode&)>&& callback); - void add_stream_close_callback(std::function<void(const XmlNode&)>&& callback); - - /** - * Called when a new XML element has been opened. We instanciate a new - * XmlNode and set it as our current node. The parent of this new node is - * the previous "current" node. We have all the element's attributes in - * this event. - * - * We spawn a stream_event with this node if this is a level-1 element. - */ - void start_element(const XML_Char* name, const XML_Char** attribute); - /** - * Called when an XML element has been closed. We close the current_node, - * set our current_node as the parent of the current_node, and if that was - * a level-2 element we spawn a stanza_event with this node. - * - * And we then delete the stanza (and everything under it, its children, - * attribute, etc). - */ - void end_element(const XML_Char* name); - /** - * Some inner or tail data has been parsed - */ - void char_data(const XML_Char* data, const size_t len); - /** - * Calls all the stanza_callbacks one by one. - */ - void stanza_event(const Stanza& stanza) const; - /** - * Calls all the stream_open_callbacks one by one. Note: the passed node is not - * closed yet. - */ - void stream_open_event(const XmlNode& node) const; - /** - * Calls all the stream_close_callbacks one by one. - */ - void stream_close_event(const XmlNode& node) const; - -private: - /** - * Init the XML parser and install the callbacks - */ - void init_xml_parser(); - - /** - * Expat structure. - */ - XML_Parser parser; - /** - * The current depth in the XML document - */ - size_t level; - /** - * The deepest XML node opened but not yet closed (to which we are adding - * new children, inner or tail) - */ - XmlNode* current_node; - /** - * The root node has no parent, so we keep it here: the XmppParser object - * is its owner. - */ - std::unique_ptr<XmlNode> root; - /** - * A list of callbacks to be called on an *_event, receiving the - * concerned Stanza/XmlNode. - */ - std::vector<std::function<void(const Stanza&)>> stanza_callbacks; - std::vector<std::function<void(const XmlNode&)>> stream_open_callbacks; - std::vector<std::function<void(const XmlNode&)>> stream_close_callbacks; -}; - - diff --git a/louloulibs/xmpp/xmpp_stanza.cpp b/louloulibs/xmpp/xmpp_stanza.cpp deleted file mode 100644 index ac6ce9b..0000000 --- a/louloulibs/xmpp/xmpp_stanza.cpp +++ /dev/null @@ -1,229 +0,0 @@ -#include <xmpp/xmpp_stanza.hpp> - -#include <utils/encoding.hpp> -#include <utils/split.hpp> - -#include <stdexcept> -#include <iostream> -#include <sstream> - -#include <string.h> - -std::string xml_escape(const std::string& data) -{ - std::string res; - res.reserve(data.size()); - for (size_t pos = 0; pos != data.size(); ++pos) - { - switch(data[pos]) - { - case '&': - res += "&"; - break; - case '<': - res += "<"; - break; - case '>': - res += ">"; - break; - case '\"': - res += """; - break; - case '\'': - res += "'"; - break; - default: - res += data[pos]; - break; - } - } - return res; -} - -std::string sanitize(const std::string& data, const std::string& encoding) -{ - if (utils::is_valid_utf8(data.data())) - return xml_escape(utils::remove_invalid_xml_chars(data)); - else - return xml_escape(utils::remove_invalid_xml_chars(utils::convert_to_utf8(data, encoding.data()))); -} - -XmlNode::XmlNode(const std::string& name, XmlNode* parent): - parent(parent) -{ - // split the namespace and the name - auto n = name.rfind(":"); - if (n == std::string::npos) - this->name = name; - else - { - this->name = name.substr(n+1); - this->attributes["xmlns"] = name.substr(0, n); - } -} - -XmlNode::XmlNode(const std::string& name): - XmlNode(name, nullptr) -{ -} - -void XmlNode::delete_all_children() -{ - this->children.clear(); -} - -void XmlNode::set_attribute(const std::string& name, const std::string& value) -{ - this->attributes[name] = value; -} - -void XmlNode::set_tail(const std::string& data) -{ - this->tail = data; -} - -void XmlNode::add_to_tail(const std::string& data) -{ - this->tail += data; -} - -void XmlNode::set_inner(const std::string& data) -{ - this->inner = data; -} - -void XmlNode::add_to_inner(const std::string& data) -{ - this->inner += data; -} - -std::string XmlNode::get_inner() const -{ - return this->inner; -} - -std::string XmlNode::get_tail() const -{ - return this->tail; -} - -const XmlNode* XmlNode::get_child(const std::string& name, const std::string& xmlns) const -{ - for (const auto& child: this->children) - { - if (child->name == name && child->get_tag("xmlns") == xmlns) - return child.get(); - } - return nullptr; -} - -std::vector<const XmlNode*> XmlNode::get_children(const std::string& name, const std::string& xmlns) const -{ - std::vector<const XmlNode*> res; - for (const auto& child: this->children) - { - if (child->name == name && child->get_tag("xmlns") == xmlns) - res.push_back(child.get()); - } - return res; -} - -XmlNode* XmlNode::add_child(std::unique_ptr<XmlNode> child) -{ - child->parent = this; - auto ret = child.get(); - this->children.push_back(std::move(child)); - return ret; -} - -XmlNode* XmlNode::add_child(XmlNode&& child) -{ - auto new_node = std::make_unique<XmlNode>(std::move(child)); - return this->add_child(std::move(new_node)); -} - -XmlNode* XmlNode::add_child(const XmlNode& child) -{ - auto new_node = std::make_unique<XmlNode>(child); - return this->add_child(std::move(new_node)); -} - -XmlNode* XmlNode::get_last_child() const -{ - return this->children.back().get(); -} - -XmlNode* XmlNode::get_parent() const -{ - return this->parent; -} - -void XmlNode::set_name(const std::string& name) -{ - this->name = name; -} - -void XmlNode::set_name(std::string&& name) -{ - this->name = std::move(name); -} - -const std::string XmlNode::get_name() const -{ - return this->name; -} - -std::string XmlNode::to_string() const -{ - std::ostringstream res; - res << "<" << this->name; - for (const auto& it: this->attributes) - res << " " << it.first << "='" << sanitize(it.second) + "'"; - if (!this->has_children() && this->inner.empty()) - res << "/>"; - else - { - res << ">" + sanitize(this->inner); - for (const auto& child: this->children) - res << child->to_string(); - res << "</" << this->get_name() << ">"; - } - res << sanitize(this->tail); - return res.str(); -} - -bool XmlNode::has_children() const -{ - return !this->children.empty(); -} - -const std::string& XmlNode::get_tag(const std::string& name) const -{ - try - { - const auto& value = this->attributes.at(name); - return value; - } - catch (const std::out_of_range& e) - { - static const std::string def{}; - return def; - } -} - -bool XmlNode::del_tag(const std::string& name) -{ - if (this->attributes.erase(name) != 0) - return true; - return false; -} - -std::string& XmlNode::operator[](const std::string& name) -{ - return this->attributes[name]; -} - -std::ostream& operator<<(std::ostream& os, const XmlNode& node) -{ - return os << node.to_string(); -} diff --git a/louloulibs/xmpp/xmpp_stanza.hpp b/louloulibs/xmpp/xmpp_stanza.hpp deleted file mode 100644 index 4ca758e..0000000 --- a/louloulibs/xmpp/xmpp_stanza.hpp +++ /dev/null @@ -1,146 +0,0 @@ -#pragma once - - -#include <map> -#include <string> -#include <vector> -#include <memory> - -std::string xml_escape(const std::string& data); -std::string xml_unescape(const std::string& data); -std::string sanitize(const std::string& data, const std::string& encoding = "ISO-8859-1"); - -/** - * Represent an XML node. It has - * - A parent XML node (in the case of the first-level nodes, the parent is - nullptr) - * - zero, one or more children XML nodes - * - A name - * - A map of attributes - * - inner data (text inside the node) - * - tail data (text just after the node) - */ -class XmlNode -{ -public: - explicit XmlNode(const std::string& name, XmlNode* parent); - explicit XmlNode(const std::string& name); - /** - * The copy constructor does not copy the parent attribute. The children - * nodes are all copied recursively. - */ - XmlNode(const XmlNode& node): - name(node.name), - parent(nullptr), - attributes(node.attributes), - children{}, - inner(node.inner), - tail(node.tail) - { - for (const auto& child: node.children) - this->add_child(std::make_unique<XmlNode>(*child)); - } - - XmlNode(XmlNode&& node) = default; - XmlNode& operator=(const XmlNode&) = delete; - XmlNode& operator=(XmlNode&&) = delete; - - ~XmlNode() = default; - - void delete_all_children(); - void set_attribute(const std::string& name, const std::string& value); - /** - * Set the content of the tail, that is the text just after this node - */ - void set_tail(const std::string& data); - /** - * Append the given data to the content of the tail. This exists because - * the expat library may provide the complete text of an element in more - * than one call - */ - void add_to_tail(const std::string& data); - /** - * Set the content of the inner, that is the text inside this node. - */ - void set_inner(const std::string& data); - /** - * Append the given data to the content of the inner. For the reason - * described in add_to_tail comment. - */ - void add_to_inner(const std::string& data); - /** - * Get the content of inner - */ - std::string get_inner() const; - /** - * Get the content of the tail - */ - std::string get_tail() const; - /** - * Get a pointer to the first child element with that name and that xml namespace - */ - const XmlNode* get_child(const std::string& name, const std::string& xmlns) const; - /** - * Get a vector of all the children that have that name and that xml namespace. - */ - std::vector<const XmlNode*> get_children(const std::string& name, const std::string& xmlns) const; - /** - * Add a node child to this node. Assign this node to the child’s parent. - * Returns a pointer to the newly added child. - */ - XmlNode* add_child(std::unique_ptr<XmlNode> child); - XmlNode* add_child(XmlNode&& child); - XmlNode* add_child(const XmlNode& child); - /** - * Returns the last of the children. If the node doesn't have any child, - * the behaviour is undefined. The user should make sure this is the case - * by calling has_children() for example. - */ - XmlNode* get_last_child() const; - XmlNode* get_parent() const; - void set_name(const std::string& name); - void set_name(std::string&& name); - const std::string get_name() const; - /** - * Serialize the stanza into a string - */ - std::string to_string() const; - /** - * Whether or not this node has at least one child (if not, this is a leaf - * node) - */ - bool has_children() const; - /** - * Gets the value for the given attribute, returns an empty string if the - * node as no such attribute. - */ - const std::string& get_tag(const std::string& name) const; - /** - * Remove the attribute of the node. Does nothing if that attribute is not - * present. Returns true if the tag was removed, false if it was absent. - */ - bool del_tag(const std::string& name); - /** - * Use this to set an attribute's value, like node["id"] = "12"; - */ - std::string& operator[](const std::string& name); - -private: - std::string name; - XmlNode* parent; - std::map<std::string, std::string> attributes; - std::vector<std::unique_ptr<XmlNode>> children; - std::string inner; - std::string tail; -}; - -std::ostream& operator<<(std::ostream& os, const XmlNode& node); - -/** - * An XMPP stanza is just an XML node of level 2 in the XMPP document (the - * level 1 ones are the <stream::stream/>, and the ones above 2 are just the - * content of the stanzas) - */ -using Stanza = XmlNode; - - |