Ivan Polyakov
2 years ago
19 changed files with 290 additions and 211 deletions
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/* SPDX-License-Identifier: GPL-3.0-or-later */ |
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/* Copyright 2022 Ivan Polyakov */ |
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/*!
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* \file fcgi.h |
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* \brief Rapida FastCGI server |
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*/ |
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#ifndef RAPIDA_SERVERS_FCGI_H_ENTRY |
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#define RAPIDA_SERVERS_FCGI_H_ENTRY |
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#include "../app.h" |
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#include <fcgiapp.h> |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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/*!
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* \brief Starts Rapida FastCGI server. |
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* \param app Application instance. |
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* \param sock_path UNIX Socket path. |
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* |
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* \return Status. 0 is success. |
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*/ |
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int rpd_fcgi_server_start(rpd_app *app, const char *sock_path); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* RAPIDA_SERVERS_FCGI_H_ENTRY */ |
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#include "../include/servers/fcgi.h" |
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#include <stdlib.h> |
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#ifdef MT_ENABLED |
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#include <pthread.h> |
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#endif /* MT_ENABLED */ |
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typedef struct { |
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rpd_app *app; |
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int sock_id; |
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} thread_data; |
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/*!
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* \brief Run FastCGI requests listening in loop. |
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* \param data \see thread_data. |
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* \return NULL; |
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*/ |
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static void *listen_requests(void *data); |
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/*!
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* \brief Handle Request. |
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* |
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* This function converts FastCGI request into the Rapida request |
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* and calls Rapida request handler. |
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* |
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* \param app Application instance. |
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* \param fcgx_req FastCGI Request. |
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*/ |
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static void handle_request(rpd_app *app, FCGX_Request *fcgx_req); |
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/*!
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* \brief Convert FastCGI request into the Rapida request. |
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* |
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* \param dest Rapida request. |
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* \param req FastCGI request. |
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* |
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* \return Status code. 0 is success. |
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*/ |
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static int fcgx_to_rpd_req(rpd_req *dest, FCGX_Request *req); |
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/*!
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* Read FastCGI request body. |
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* \param dest Destination buffer. |
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* \param req FastCGI request. |
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* \return Status code. 0 is success. |
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*/ |
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static int read_fcgx_req_body(char **dest, FCGX_Request *req); |
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/*!
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* \brief Sends response to client. |
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* \param res Response instance. |
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* \param out Output stream. |
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*/ |
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static void send_response(rpd_res *res, FCGX_Stream *out); |
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int rpd_fcgi_server_start(rpd_app *app, const char *sock_path) |
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{ |
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FCGX_Init(); |
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int sock_id = 0; |
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if ((sock_id = FCGX_OpenSocket(sock_path, 10)) < 0) { |
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return 1; |
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} |
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thread_data data = { app, sock_id }; |
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#ifdef MT_ENABLED |
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pthread_t threads[NTHREADS]; |
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for (int i = 0; i < NTHREADS; i++) { |
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pthread_create(&threads[i], 0, &listen_requests, (void *) &data); |
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pthread_join(threads[i], 0); |
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} |
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#else |
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listen_requests((void *) &data); |
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#endif |
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return 0; |
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} |
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static void *listen_requests(void *data) |
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{ |
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thread_data *hdata = (thread_data *) data; |
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FCGX_Request req; |
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if (FCGX_InitRequest(&req, hdata->sock_id, 0)) |
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return 0; |
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hdata->app->running = 1; |
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while (hdata->app->running) { |
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#ifdef MT_ENABLED |
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static pthread_mutex_t accept_mutex = PTHREAD_MUTEX_INITIALIZER; |
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pthread_mutex_lock(&accept_mutex); |
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#endif |
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int rc = FCGX_Accept_r(&req); |
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#ifdef MT_ENABLED |
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pthread_mutex_unlock(&accept_mutex); |
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#endif |
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if (rc < 0) |
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break; |
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#ifdef MT_ENABLED |
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static pthread_mutex_t handle_mutex = PTHREAD_MUTEX_INITIALIZER; |
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pthread_mutex_lock(&handle_mutex); |
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#endif |
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handle_request(hdata->app, &req); |
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#ifdef MT_ENABLED |
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pthread_mutex_unlock(&handle_mutex); |
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#endif |
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FCGX_Finish_r(&req); |
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} |
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return NULL; |
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} |
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static void handle_request(rpd_app *app, FCGX_Request *fcgx_req) |
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{ |
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rpd_req *req; |
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rpd_res *res; |
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req = (rpd_req *) malloc(sizeof(rpd_req)); |
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res = (rpd_res *) malloc(sizeof(rpd_res)); |
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fcgx_to_rpd_req(req, fcgx_req); |
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rpd_res_init(res); |
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rpd_app_handle_request(app, req, res); |
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send_response(res, fcgx_req->out); |
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rpd_req_cleanup(req); |
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rpd_res_cleanup(res); |
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free(req); |
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free(res); |
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} |
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static void send_response(rpd_res *res, FCGX_Stream *out) |
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{ |
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char *buff; |
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if (rpd_res_str(&buff, res)) { |
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FCGX_PutS("Status: 500\r\n\r\n", out); |
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return; |
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} |
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FCGX_PutS(buff, out); |
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free(buff); |
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} |
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static int fcgx_to_rpd_req(rpd_req *dest, FCGX_Request *req) |
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{ |
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rpd_query_parse(&dest->query, FCGX_GetParam("QUERY_STRING", req->envp)); |
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dest->method = rpd_req_smethod(FCGX_GetParam("REQUEST_METHOD", req->envp)); |
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rpd_url_parse(&dest->path, FCGX_GetParam("DOCUMENT_URI", req->envp)); |
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dest->auth = FCGX_GetParam("HTTP_AUTHORIZATION", req->envp); |
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dest->cookie = FCGX_GetParam("HTTP_COOKIE", req->envp); |
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rpd_keyval_init(&dest->params, 0); |
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if (dest->method != GET) { |
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if (read_fcgx_req_body(&dest->body, req)) { |
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return 2; |
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} |
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} else { |
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dest->body = NULL; |
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} |
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return 0; |
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} |
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static int read_fcgx_req_body(char **dest, FCGX_Request *req) |
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{ |
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char *clen = FCGX_GetParam("CONTENT_LENGTH", req->envp); |
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if (!clen) |
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return 1; |
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size_t len = atoll(clen); |
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*dest = (char *) malloc(sizeof(char) * (len + 1)); |
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if (!*dest) |
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return 2; |
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*dest[len] = '\0'; |
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FCGX_GetStr(*dest, len, req->in); |
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return 0; |
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} |
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