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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Monkey HTTP Server
* ==================
* Copyright 2001-2017 Eduardo Silva <eduardo@monkey.io>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <monkey/mk_api.h>
#include "fastcgi.h"
#include "fcgi_handler.h"
static int mk_fastcgi_config(char *path)
{
int ret;
int sep;
char *file = NULL;
char *cnf_srv_name = NULL;
char *cnf_srv_addr = NULL;
char *cnf_srv_port = NULL;
char *cnf_srv_path = NULL;
unsigned long len;
struct file_info finfo;
struct mk_rconf *conf;
struct mk_rconf_section *section;
mk_api->str_build(&file, &len, "%sfastcgi.conf", path);
conf = mk_api->config_open(file);
if (!conf) {
return -1;
}
section = mk_api->config_section_get(conf, "FASTCGI_SERVER");
if (!section) {
return -1;
}
/* Get section values */
cnf_srv_name = mk_api->config_section_get_key(section,
"ServerName",
MK_RCONF_STR);
cnf_srv_addr = mk_api->config_section_get_key(section,
"ServerAddr",
MK_RCONF_STR);
cnf_srv_path = mk_api->config_section_get_key(section,
"ServerPath",
MK_RCONF_STR);
/* Validations */
if (!cnf_srv_name) {
mk_warn("[fastcgi] Invalid ServerName in configuration.");
return -1;
}
/* Split the address, try to lookup the TCP port */
if (cnf_srv_addr) {
sep = mk_api->str_char_search(cnf_srv_addr, ':', strlen(cnf_srv_addr));
if (sep <= 0) {
mk_warn("[fastcgi] Missing TCP port con ServerAddress key");
return -1;
}
cnf_srv_port = mk_api->str_dup(cnf_srv_addr + sep + 1);
cnf_srv_addr[sep] = '\0';
}
/* Just one mode can exist (for now) */
if (cnf_srv_path && cnf_srv_addr) {
mk_warn("[fastcgi] Use ServerAddr or ServerPath, not both");
return -1;
}
/* Unix socket path */
if (cnf_srv_path) {
ret = mk_api->file_get_info(cnf_srv_path, &finfo, MK_FILE_READ);
if (ret == -1) {
mk_warn("[fastcgi] Cannot open unix socket: %s", cnf_srv_path);
return -1;
}
}
/* Set the global configuration */
fcgi_conf.server_name = cnf_srv_name;
fcgi_conf.server_addr = cnf_srv_addr;
fcgi_conf.server_port = cnf_srv_port;
fcgi_conf.server_path = cnf_srv_path;
return 0;
}
/* Entry point for thread/co-routine */
static void mk_fastcgi_stage30_thread(struct mk_plugin *plugin,
struct mk_http_session *cs,
struct mk_http_request *sr,
int n_params,
struct mk_list *params)
{
struct fcgi_handler *handler;
(void) plugin;
(void) n_params;
(void) params;
printf("entering thread\n");
handler = fcgi_handler_new(cs, sr);
if (!handler) {
fprintf(stderr, "Could not create handler");
}
}
/* Callback handler */
int mk_fastcgi_stage30(struct mk_plugin *plugin,
struct mk_http_session *cs,
struct mk_http_request *sr,
int n_params,
struct mk_list *params)
{
(void) n_params;
(void) params;
struct fcgi_handler *handler;
/*
* This plugin uses the Monkey Thread model (co-routines), for hence
* upon return MK_PLUGIN_RET_CONTINUE, Monkey core will create a
* new thread (co-routine) and defer the control to the stage30_thread
* callback function (mk_fastcgi_stage30_thread).
*
* We don't do any validation, so we are OK with MK_PLUGIN_RET_CONTINUE.
*/
return MK_PLUGIN_RET_CONTINUE;
ret = mk_fastcgi_start_processing(cs, sr);
if (ret == 0) {
return MK_PLUGIN_RET_CONTINUE;
}
return MK_PLUGIN_RET_CONTINUE;
}
int mk_fastcgi_stage30_hangup(struct mk_plugin *plugin,
struct mk_http_session *cs,
struct mk_http_request *sr)
{
(void) plugin;
(void) cs;
struct fcgi_handler *handler;
handler = sr->handler_data;
if (!handler) {
return -1;
}
if (handler->hangup == MK_TRUE) {
return 0;
}
handler->active = MK_FALSE;
handler->hangup = MK_TRUE;
fcgi_exit(sr->handler_data);
return 0;
}
int mk_fastcgi_plugin_init(struct plugin_api **api, char *confdir)
{
int ret;
mk_api = *api;
/* read global configuration */
ret = mk_fastcgi_config(confdir);
if (ret == -1) {
mk_warn("[fastcgi] configuration error/missing, plugin disabled.");
}
return ret;
}
int mk_fastcgi_plugin_exit()
{
return 0;
}
int mk_fastcgi_master_init(struct mk_server *server)
{
(void) server;
return 0;
}
void mk_fastcgi_worker_init()
{
}
struct mk_plugin_stage mk_plugin_stage_fastcgi = {
.stage30 = &mk_fastcgi_stage30,
.stage30_thread = &mk_fastcgi_stage30_thread,
.stage30_hangup = &mk_fastcgi_stage30_hangup
};
struct mk_plugin mk_plugin_fastcgi = {
/* Identification */
.shortname = "fastcgi",
.name = "FastCGI Client",
.version = "1.0",
.hooks = MK_PLUGIN_STAGE,
/* Init / Exit */
.init_plugin = mk_fastcgi_plugin_init,
.exit_plugin = mk_fastcgi_plugin_exit,
/* Init Levels */
.master_init = mk_fastcgi_master_init,
.worker_init = mk_fastcgi_worker_init,
/* Type */
.stage = &mk_plugin_stage_fastcgi,
/* Flags */
.flags = MK_PLUGIN_THREAD
};
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