62 lines
2.4 KiB
Markdown
62 lines
2.4 KiB
Markdown
# 1. httpserver组件库
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   使用<sdk>/external/httpserver.h-master/src/CMakeLists.txt文件编译的开源库，二次封装接口给到应用层使用。
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## 1.1. 注意事项
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1. 编译libhttpsrv时，可能会提示 ragel 工具未安装，需要安装 ragel 工具：
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```
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$ sudo apt install ragel
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```
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2. 对开源库的CMakeLists.txt文件增加拷贝命令：
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```
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message("${PLATFORM_PATH}/cmake-shell/external${SUBMODULE_PATH_OF_IPC_SDK}/httpserver.h-master/src/libhttpsrv.a")
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add_custom_command(
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TARGET httpsrv
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POST_BUILD
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COMMAND cp ${PLATFORM_PATH}/cmake-shell${SUBMODULE_PATH_OF_IPC_SDK}/external/httpserver.h-master/src/libhttpsrv.a ${EXTERNAL_LIBS_OUTPUT_PATH}
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WORKING_DIRECTORY ${PLATFORM_PATH}/cmake-shell/
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)
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```
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3. 取消开源库的CMakeLists.txt文件debug配置，未知会产生什么不良后果；
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```
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PUBLIC $<$<CONFIG:DEBUG>:-fsanitize=address -fsanitize=undefined -fno-sanitize-recover=all>
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```
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4. 由于开源代码不支持安全退出，所以修改了开源代码；
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```
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int gHttpServerRuning = 1; // 增加一个运行标识
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int hs_server_run_event_loop(http_server_t *serv, const char *ipaddr) {
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hs_server_listen_on_addr(serv, ipaddr);
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struct epoll_event ev_list[1];
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while (gHttpServerRuning) { // 运行标识赋值为0时，httpserver退出
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int nev = epoll_wait(serv->loop, ev_list, 1, -1);
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for (int i = 0; i < nev; i++) {
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ev_cb_t *ev_cb = (ev_cb_t *)ev_list[i].data.ptr;
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ev_cb->handler(&ev_list[i]);
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}
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}
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return 0;
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}
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```
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5. 修复一个内存安全漏洞；
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```
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void _hs_accept_and_begin_request_cycle(http_server_t *server,
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hs_io_cb_t on_client_connection_cb,
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hs_io_cb_t on_timer_event_cb) {
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http_request_t *request = NULL;
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while ((request = hs_server_accept_connection(server, on_client_connection_cb,
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on_timer_event_cb))) {
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if (server->memused > HTTP_MAX_TOTAL_EST_MEM_USAGE) {
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hs_request_respond_error(request, 503, "Service Unavailable",
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hs_request_begin_write);
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} else {
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hs_request_begin_read(request);
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}
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// ================ added by xiao ================ //
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if (request) {
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hs_request_terminate_connection(request); // 此处应该释放内存
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}
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// ================ added by xiao end ================ //
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}
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}
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```
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6. |