| /* |
| * Copyright (C) 2004-2023 Savoir-faire Linux Inc. |
| * |
| * This program is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <https://www.gnu.org/licenses/>. |
| */ |
| #pragma once |
| |
| #include "ip_utils.h" |
| |
| #include <utility> |
| #include <string> |
| #include <vector> |
| #include <cstring> // strcmp |
| |
| #include <pjsip/sip_msg.h> |
| #include <pjlib.h> |
| #include <pj/pool.h> |
| #include <pjsip/sip_endpoint.h> |
| #include <pjsip/sip_dialog.h> |
| |
| namespace dhtnet { |
| namespace sip_utils { |
| |
| using namespace std::literals; |
| |
| // SIP methods. Only list methods that need to be explicitly |
| // handled |
| |
| namespace SIP_METHODS { |
| constexpr std::string_view MESSAGE = "MESSAGE"sv; |
| constexpr std::string_view INFO = "INFO"sv; |
| constexpr std::string_view OPTIONS = "OPTIONS"sv; |
| constexpr std::string_view PUBLISH = "PUBLISH"sv; |
| constexpr std::string_view REFER = "REFER"sv; |
| constexpr std::string_view NOTIFY = "NOTIFY"sv; |
| } // namespace SIP_METHODS |
| |
| static constexpr int DEFAULT_SIP_PORT {5060}; |
| static constexpr int DEFAULT_SIP_TLS_PORT {5061}; |
| static constexpr int DEFAULT_AUTO_SELECT_PORT {0}; |
| |
| /// PjsipErrorCategory - a PJSIP error category for std::error_code |
| class PjsipErrorCategory final : public std::error_category |
| { |
| public: |
| const char* name() const noexcept override { return "pjsip"; } |
| std::string message(int condition) const override; |
| }; |
| |
| /// PJSIP related exception |
| /// Based on std::system_error with code() returning std::error_code with PjsipErrorCategory category |
| class PjsipFailure : public std::system_error |
| { |
| private: |
| static constexpr const char* what_ = "PJSIP call failed"; |
| |
| public: |
| PjsipFailure() |
| : std::system_error(std::error_code(PJ_EUNKNOWN, PjsipErrorCategory()), what_) |
| {} |
| |
| explicit PjsipFailure(pj_status_t status) |
| : std::system_error(std::error_code(status, PjsipErrorCategory()), what_) |
| {} |
| }; |
| |
| |
| /** |
| * Helper function to parser header from incoming sip messages |
| * @return Header from SIP message |
| */ |
| /*std::string fetchHeaderValue(pjsip_msg* msg, const std::string& field); |
| |
| pjsip_route_hdr* createRouteSet(const std::string& route, pj_pool_t* hdr_pool); |
| |
| std::string_view stripSipUriPrefix(std::string_view sipUri); |
| |
| std::string parseDisplayName(const pjsip_name_addr* sip_name_addr); |
| std::string parseDisplayName(const pjsip_from_hdr* header); |
| std::string parseDisplayName(const pjsip_contact_hdr* header); |
| |
| std::string_view getHostFromUri(std::string_view sipUri); |
| |
| void addContactHeader(const std::string& contact, pjsip_tx_data* tdata); |
| void addUserAgentHeader(const std::string& userAgent, pjsip_tx_data* tdata); |
| std::string_view getPeerUserAgent(const pjsip_rx_data* rdata); |
| std::vector<std::string> getPeerAllowMethods(const pjsip_rx_data* rdata); |
| void logMessageHeaders(const pjsip_hdr* hdr_list);*/ |
| |
| std::string_view sip_strerror(pj_status_t code); |
| |
| // Helper function that return a constant pj_str_t from an array of any types |
| // that may be statically casted into char pointer. |
| // Per convention, the input array is supposed to be null terminated. |
| template<typename T, std::size_t N> |
| constexpr const pj_str_t |
| CONST_PJ_STR(T (&a)[N]) noexcept |
| { |
| return {const_cast<char*>(a), N - 1}; |
| } |
| |
| inline const pj_str_t |
| CONST_PJ_STR(const std::string& str) noexcept |
| { |
| return {const_cast<char*>(str.c_str()), (pj_ssize_t) str.size()}; |
| } |
| |
| inline constexpr pj_str_t |
| CONST_PJ_STR(const std::string_view& str) noexcept |
| { |
| return {const_cast<char*>(str.data()), (pj_ssize_t) str.size()}; |
| } |
| |
| inline constexpr std::string_view |
| as_view(const pj_str_t& str) noexcept |
| { |
| return {str.ptr, (size_t) str.slen}; |
| } |
| |
| // PJSIP dialog locking in RAII way |
| // Usage: declare local variable like this: sip_utils::PJDialogLock lock {dialog}; |
| // The lock is kept until the local variable is deleted |
| class PJDialogLock |
| { |
| public: |
| explicit PJDialogLock(pjsip_dialog* dialog) |
| : dialog_(dialog) |
| { |
| pjsip_dlg_inc_lock(dialog_); |
| } |
| |
| ~PJDialogLock() { pjsip_dlg_dec_lock(dialog_); } |
| |
| private: |
| PJDialogLock(const PJDialogLock&) = delete; |
| PJDialogLock& operator=(const PJDialogLock&) = delete; |
| pjsip_dialog* dialog_ {nullptr}; |
| }; |
| |
| // Helper on PJSIP memory pool allocation from endpoint |
| // This encapsulate the allocated memory pool inside a unique_ptr |
| static inline std::unique_ptr<pj_pool_t, decltype(pj_pool_release)&> |
| smart_alloc_pool(pjsip_endpoint* endpt, const char* const name, pj_size_t initial, pj_size_t inc) |
| { |
| auto pool = pjsip_endpt_create_pool(endpt, name, initial, inc); |
| if (not pool) |
| throw std::bad_alloc(); |
| return std::unique_ptr<pj_pool_t, decltype(pj_pool_release)&>(pool, pj_pool_release); |
| } |
| |
| void sockaddr_to_host_port(pj_pool_t* pool, pjsip_host_port* host_port, const pj_sockaddr* addr); |
| |
| static constexpr int POOL_TP_INIT {512}; |
| static constexpr int POOL_TP_INC {512}; |
| static constexpr int TRANSPORT_INFO_LENGTH {64}; |
| |
| } // namespace sip_utils |
| } // namespace jami |