2 * uhttpd - Tiny single-threaded httpd - Main component
4 * Copyright (C) 2010 Jo-Philipp Wich <xm@subsignal.org>
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
19 #define _XOPEN_SOURCE 500 /* crypt() */
22 #include "uhttpd-utils.h"
23 #include "uhttpd-file.h"
26 #include "uhttpd-cgi.h"
30 #include "uhttpd-lua.h"
34 #include "uhttpd-tls.h"
38 const char * http_methods[] = { "GET", "POST", "HEAD", };
39 const char * http_versions[] = { "HTTP/0.9", "HTTP/1.0", "HTTP/1.1", };
43 static void uh_sigterm(int sig)
48 static void uh_config_parse(struct config *conf)
56 const char *path = conf->file ? conf->file : "/etc/httpd.conf";
59 if ((c = fopen(path, "r")) != NULL)
61 memset(line, 0, sizeof(line));
63 while (fgets(line, sizeof(line) - 1, c))
65 if ((line[0] == '/') && (strchr(line, ':') != NULL))
67 if (!(col1 = strchr(line, ':')) || (*col1++ = 0) ||
68 !(col2 = strchr(col1, ':')) || (*col2++ = 0) ||
69 !(eol = strchr(col2, '\n')) || (*eol++ = 0))
74 if (!uh_auth_add(line, col1, col2))
77 "Notice: No password set for user %s, ignoring "
78 "authentication on %s\n", col1, line
82 else if (!strncmp(line, "I:", 2))
84 if (!(col1 = strchr(line, ':')) || (*col1++ = 0) ||
85 !(eol = strchr(col1, '\n')) || (*eol++ = 0))
90 conf->index_file = strdup(col1);
92 else if (!strncmp(line, "E404:", 5))
94 if (!(col1 = strchr(line, ':')) || (*col1++ = 0) ||
95 !(eol = strchr(col1, '\n')) || (*eol++ = 0))
100 conf->error_handler = strdup(col1);
103 else if ((line[0] == '*') && (strchr(line, ':') != NULL))
105 if (!(col1 = strchr(line, '*')) || (*col1++ = 0) ||
106 !(col2 = strchr(col1, ':')) || (*col2++ = 0) ||
107 !(eol = strchr(col2, '\n')) || (*eol++ = 0))
112 if (!uh_interpreter_add(col1, col2))
115 "Unable to add interpreter %s for extension %s: "
116 "Out of memory\n", col2, col1
127 static void uh_listener_cb(struct uloop_fd *u, unsigned int events);
129 static int uh_socket_bind(const char *host, const char *port,
130 struct addrinfo *hints, int do_tls,
138 int tcp_ka_idl, tcp_ka_int, tcp_ka_cnt;
140 struct listener *l = NULL;
141 struct addrinfo *addrs = NULL, *p = NULL;
143 if ((status = getaddrinfo(host, port, hints, &addrs)) != 0)
145 fprintf(stderr, "getaddrinfo(): %s\n", gai_strerror(status));
148 /* try to bind a new socket to each found address */
149 for (p = addrs; p; p = p->ai_next)
152 if ((sock = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1)
158 /* "address already in use" */
159 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)))
161 perror("setsockopt()");
166 if (conf->tcp_keepalive > 0)
170 tcp_ka_int = conf->tcp_keepalive;
172 if (setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &yes, sizeof(yes)) ||
173 setsockopt(sock, SOL_TCP, TCP_KEEPIDLE, &tcp_ka_idl, sizeof(tcp_ka_idl)) ||
174 setsockopt(sock, SOL_TCP, TCP_KEEPINTVL, &tcp_ka_int, sizeof(tcp_ka_int)) ||
175 setsockopt(sock, SOL_TCP, TCP_KEEPCNT, &tcp_ka_cnt, sizeof(tcp_ka_cnt)))
177 fprintf(stderr, "Notice: Unable to enable TCP keep-alive: %s\n",
182 /* required to get parallel v4 + v6 working */
183 if (p->ai_family == AF_INET6)
185 if (setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &yes, sizeof(yes)) == -1)
187 perror("setsockopt()");
193 if (bind(sock, p->ai_addr, p->ai_addrlen) == -1)
200 if (listen(sock, UH_LIMIT_CLIENTS) == -1)
206 /* add listener to global list */
207 if (!(l = uh_listener_add(sock, conf)))
209 fprintf(stderr, "uh_listener_add(): Failed to allocate memory\n");
215 l->tls = do_tls ? conf->tls : NULL;
218 /* add socket to uloop */
220 uh_ufd_add(&l->fd, uh_listener_cb, ULOOP_READ);
235 static struct http_request * uh_http_header_parse(struct client *cl,
236 char *buffer, int buflen)
238 char *method = buffer;
240 char *version = NULL;
242 char *headers = NULL;
243 char *hdrname = NULL;
244 char *hdrdata = NULL;
249 struct http_request *req = &cl->request;
252 /* terminate initial header line */
253 if ((headers = strfind(buffer, buflen, "\r\n", 2)) != NULL)
255 buffer[buflen-1] = 0;
260 /* find request path */
261 if ((path = strchr(buffer, ' ')) != NULL)
264 /* find http version */
265 if ((path != NULL) && ((version = strchr(path, ' ')) != NULL))
270 if (method && !strcmp(method, "GET"))
271 req->method = UH_HTTP_MSG_GET;
272 else if (method && !strcmp(method, "POST"))
273 req->method = UH_HTTP_MSG_POST;
274 else if (method && !strcmp(method, "HEAD"))
275 req->method = UH_HTTP_MSG_HEAD;
279 uh_http_response(cl, 405, "Method Not Allowed");
284 if (!path || !strlen(path))
286 /* malformed request */
287 uh_http_response(cl, 400, "Bad Request");
296 if (version && !strcmp(version, "HTTP/0.9"))
297 req->version = UH_HTTP_VER_0_9;
298 else if (version && !strcmp(version, "HTTP/1.0"))
299 req->version = UH_HTTP_VER_1_0;
300 else if (version && !strcmp(version, "HTTP/1.1"))
301 req->version = UH_HTTP_VER_1_1;
304 /* unsupported version */
305 uh_http_response(cl, 400, "Bad Request");
310 http_methods[req->method], req->url, http_versions[req->version]);
312 /* process header fields */
313 for (i = (int)(headers - buffer); i < buflen; i++)
315 /* found eol and have name + value, push out header tuple */
316 if (hdrname && hdrdata && (buffer[i] == '\r' || buffer[i] == '\n'))
321 if ((hdrcount + 1) < array_size(req->headers))
323 D("SRV: HTTP: %s: %s\n", hdrname, hdrdata);
325 req->headers[hdrcount++] = hdrname;
326 req->headers[hdrcount++] = hdrdata;
328 hdrname = hdrdata = NULL;
334 D("SRV: HTTP: header too big (too many headers)\n");
335 uh_http_response(cl, 413, "Request Entity Too Large");
340 /* have name but no value and found a colon, start of value */
341 else if (hdrname && !hdrdata &&
342 ((i+1) < buflen) && (buffer[i] == ':'))
345 hdrdata = &buffer[i+1];
347 while ((hdrdata + 1) < (buffer + buflen) && *hdrdata == ' ')
351 /* have no name and found [A-Za-z], start of name */
352 else if (!hdrname && isalpha(buffer[i]))
354 hdrname = &buffer[i];
359 req->redirect_status = 200;
363 /* Malformed request */
364 uh_http_response(cl, 400, "Bad Request");
369 static struct http_request * uh_http_header_recv(struct client *cl)
371 char *bufptr = cl->httpbuf.buf;
374 ssize_t blen = sizeof(cl->httpbuf.buf)-1;
377 memset(bufptr, 0, sizeof(cl->httpbuf.buf));
382 ensure_out(rlen = uh_tcp_recv(cl, bufptr, blen));
383 D("SRV: Client(%d) peek(%d) = %d\n", cl->fd.fd, blen, rlen);
387 D("SRV: Client(%d) dead [%s]\n", cl->fd.fd, strerror(errno));
394 if ((idxptr = strfind(cl->httpbuf.buf, sizeof(cl->httpbuf.buf),
397 /* header read complete ... */
398 cl->httpbuf.ptr = idxptr + 4;
399 cl->httpbuf.len = bufptr - cl->httpbuf.ptr;
401 return uh_http_header_parse(cl, cl->httpbuf.buf,
402 (cl->httpbuf.ptr - cl->httpbuf.buf));
406 /* request entity too large */
407 D("SRV: HTTP: header too big (buffer exceeded)\n");
408 uh_http_response(cl, 413, "Request Entity Too Large");
414 #if defined(HAVE_LUA) || defined(HAVE_CGI)
415 static int uh_path_match(const char *prefix, const char *url)
417 if ((strstr(url, prefix) == url) &&
418 ((prefix[strlen(prefix)-1] == '/') ||
419 (strlen(url) == strlen(prefix)) ||
420 (url[strlen(prefix)] == '/')))
429 static bool uh_dispatch_request(struct client *cl, struct http_request *req)
431 struct path_info *pin;
432 struct interpreter *ipr = NULL;
433 struct config *conf = cl->server->conf;
437 if (conf->lua_state &&
438 uh_path_match(conf->lua_prefix, req->url))
440 return conf->lua_request(cl, conf->lua_state);
447 if (conf->ubus_state &&
448 uh_path_match(conf->ubus_prefix, req->url))
450 return conf->ubus_request(cl, conf->ubus_state);
455 /* dispatch request */
456 if ((pin = uh_path_lookup(cl, req->url)) != NULL)
459 if (!pin->redirected && uh_auth_check(cl, req, pin))
462 if (uh_path_match(conf->cgi_prefix, pin->name) ||
463 (ipr = uh_interpreter_lookup(pin->phys)) != NULL)
465 return uh_cgi_request(cl, pin, ipr);
468 return uh_file_request(cl, pin);
475 /* Try to invoke an error handler */
476 if ((pin = uh_path_lookup(cl, conf->error_handler)) != NULL)
479 if (uh_auth_check(cl, req, pin))
481 req->redirect_status = 404;
483 if (uh_path_match(conf->cgi_prefix, pin->name) ||
484 (ipr = uh_interpreter_lookup(pin->phys)) != NULL)
486 return uh_cgi_request(cl, pin, ipr);
489 return uh_file_request(cl, pin);
496 uh_http_sendhf(cl, 404, "Not Found", "No such file or directory");
503 static void uh_socket_cb(struct uloop_fd *u, unsigned int events);
505 static void uh_listener_cb(struct uloop_fd *u, unsigned int events)
508 struct listener *serv;
512 struct sockaddr_in6 sa;
513 socklen_t sl = sizeof(sa);
515 serv = container_of(u, struct listener, fd);
518 /* defer client if maximum number of requests is exceeded */
519 if (serv->n_clients >= conf->max_requests)
522 /* handle new connections */
523 if ((new_fd = accept(u->fd, (struct sockaddr *)&sa, &sl)) != -1)
525 D("SRV: Server(%d) accept => Client(%d)\n", u->fd, new_fd);
527 /* add to global client list */
528 if ((cl = uh_client_add(new_fd, serv, &sa)) != NULL)
530 /* add client socket to global fdset */
531 uh_ufd_add(&cl->fd, uh_socket_cb, ULOOP_READ);
532 fd_cloexec(cl->fd.fd);
535 /* setup client tls context */
538 if (conf->tls_accept(cl) < 1)
540 D("SRV: Client(%d) SSL handshake failed, drop\n", new_fd);
542 /* remove from global client list */
543 uh_client_remove(cl);
550 /* insufficient resources */
553 fprintf(stderr, "uh_client_add(): Cannot allocate memory\n");
559 static void uh_client_cb(struct client *cl, unsigned int events);
561 static void uh_rpipe_cb(struct uloop_fd *u, unsigned int events)
563 struct client *cl = container_of(u, struct client, rpipe);
565 D("SRV: Client(%d) rpipe readable\n", cl->fd.fd);
567 uh_client_cb(cl, ULOOP_WRITE);
570 static void uh_socket_cb(struct uloop_fd *u, unsigned int events)
572 struct client *cl = container_of(u, struct client, fd);
574 D("SRV: Client(%d) socket readable\n", cl->fd.fd);
576 uh_client_cb(cl, ULOOP_READ);
579 static void uh_child_cb(struct uloop_process *p, int rv)
581 struct client *cl = container_of(p, struct client, proc);
583 D("SRV: Client(%d) child(%d) dead\n", cl->fd.fd, cl->proc.pid);
585 uh_client_cb(cl, ULOOP_READ | ULOOP_WRITE);
588 static void uh_kill9_cb(struct uloop_timeout *t)
590 struct client *cl = container_of(t, struct client, timeout);
592 if (!kill(cl->proc.pid, 0))
594 D("SRV: Client(%d) child(%d) kill(SIGKILL)...\n",
595 cl->fd.fd, cl->proc.pid);
597 kill(cl->proc.pid, SIGKILL);
601 static void uh_timeout_cb(struct uloop_timeout *t)
603 struct client *cl = container_of(t, struct client, timeout);
605 D("SRV: Client(%d) child(%d) timed out\n", cl->fd.fd, cl->proc.pid);
607 if (!kill(cl->proc.pid, 0))
609 D("SRV: Client(%d) child(%d) kill(SIGTERM)...\n",
610 cl->fd.fd, cl->proc.pid);
612 kill(cl->proc.pid, SIGTERM);
614 cl->timeout.cb = uh_kill9_cb;
615 uloop_timeout_set(&cl->timeout, 1000);
619 static void uh_client_cb(struct client *cl, unsigned int events)
623 struct http_request *req;
625 conf = cl->server->conf;
627 D("SRV: Client(%d) enter callback\n", cl->fd.fd);
629 /* undispatched yet */
632 /* we have no headers yet and this was a write event, ignore... */
633 if (!(events & ULOOP_READ))
635 D("SRV: Client(%d) ignoring write event before headers\n", cl->fd.fd);
639 /* attempt to receive and parse headers */
640 if (!(req = uh_http_header_recv(cl)))
642 D("SRV: Client(%d) failed to receive header\n", cl->fd.fd);
643 uh_client_shutdown(cl);
647 /* process expect headers */
648 foreach_header(i, req->headers)
650 if (strcasecmp(req->headers[i], "Expect"))
653 if (strcasecmp(req->headers[i+1], "100-continue"))
655 D("SRV: Client(%d) unknown expect header (%s)\n",
656 cl->fd.fd, req->headers[i+1]);
658 uh_http_response(cl, 417, "Precondition Failed");
659 uh_client_shutdown(cl);
664 D("SRV: Client(%d) sending HTTP/1.1 100 Continue\n", cl->fd.fd);
666 uh_http_sendf(cl, NULL, "HTTP/1.1 100 Continue\r\n\r\n");
667 cl->httpbuf.len = 0; /* client will re-send the body */
672 /* RFC1918 filtering */
673 if (conf->rfc1918_filter &&
674 sa_rfc1918(&cl->peeraddr) && !sa_rfc1918(&cl->servaddr))
676 uh_http_sendhf(cl, 403, "Forbidden",
677 "Rejected request from RFC1918 IP "
678 "to public server address");
680 uh_client_shutdown(cl);
684 /* dispatch request */
685 if (!uh_dispatch_request(cl, req))
687 D("SRV: Client(%d) failed to dispach request\n", cl->fd.fd);
688 uh_client_shutdown(cl);
692 /* request handler spawned a pipe, register handler */
693 if (cl->rpipe.fd > -1)
695 D("SRV: Client(%d) pipe(%d) spawned\n", cl->fd.fd, cl->rpipe.fd);
697 uh_ufd_add(&cl->rpipe, uh_rpipe_cb, ULOOP_READ);
700 /* request handler spawned a child, register handler */
703 D("SRV: Client(%d) child(%d) spawned\n", cl->fd.fd, cl->proc.pid);
705 cl->proc.cb = uh_child_cb;
706 uloop_process_add(&cl->proc);
708 cl->timeout.cb = uh_timeout_cb;
709 uloop_timeout_set(&cl->timeout, conf->script_timeout * 1000);
712 /* header processing complete */
713 D("SRV: Client(%d) dispatched\n", cl->fd.fd);
714 cl->dispatched = true;
719 D("SRV: Client(%d) response callback signalized EOF\n", cl->fd.fd);
720 uh_client_shutdown(cl);
726 static inline int uh_inittls(struct config *conf)
732 if (conf->tls != NULL)
735 /* load TLS plugin */
736 if (!(lib = dlopen("uhttpd_tls.so", RTLD_LAZY | RTLD_GLOBAL)))
739 "Notice: Unable to load TLS plugin - disabling SSL support! "
740 "(Reason: %s)\n", dlerror()
747 /* resolve functions */
748 if (!(conf->tls_init = dlsym(lib, "uh_tls_ctx_init")) ||
749 !(conf->tls_cert = dlsym(lib, "uh_tls_ctx_cert")) ||
750 !(conf->tls_key = dlsym(lib, "uh_tls_ctx_key")) ||
751 !(conf->tls_free = dlsym(lib, "uh_tls_ctx_free")) ||
752 !(conf->tls_accept = dlsym(lib, "uh_tls_client_accept")) ||
753 !(conf->tls_close = dlsym(lib, "uh_tls_client_close")) ||
754 !(conf->tls_recv = dlsym(lib, "uh_tls_client_recv")) ||
755 !(conf->tls_send = dlsym(lib, "uh_tls_client_send")))
758 "Error: Failed to lookup required symbols "
759 "in TLS plugin: %s\n", dlerror()
764 /* init SSL context */
765 if (!(conf->tls = conf->tls_init()))
767 fprintf(stderr, "Error: Failed to initalize SSL context\n");
776 int main (int argc, char **argv)
778 /* working structs */
779 struct addrinfo hints;
783 /* maximum file descriptor number */
799 #if defined(HAVE_LUA) || defined(HAVE_TLS) || defined(HAVE_UBUS)
804 /* handle SIGPIPE, SIGINT, SIGTERM */
806 sigemptyset(&sa.sa_mask);
808 sa.sa_handler = SIG_IGN;
809 sigaction(SIGPIPE, &sa, NULL);
811 sa.sa_handler = uh_sigterm;
812 sigaction(SIGINT, &sa, NULL);
813 sigaction(SIGTERM, &sa, NULL);
815 /* prepare addrinfo hints */
816 memset(&hints, 0, sizeof(hints));
817 hints.ai_family = AF_UNSPEC;
818 hints.ai_socktype = SOCK_STREAM;
819 hints.ai_flags = AI_PASSIVE;
822 memset(&conf, 0, sizeof(conf));
826 while ((opt = getopt(argc, argv,
827 "fSDRC:K:E:I:p:s:h:c:l:L:d:r:m:n:x:i:t:T:A:u:U:")) > 0)
834 memset(addr, 0, sizeof(addr));
836 if ((port = strrchr(optarg, ':')) != NULL)
838 if ((optarg[0] == '[') && (port > optarg) && (port[-1] == ']'))
839 memcpy(addr, optarg + 1,
840 min(sizeof(addr), (int)(port - optarg) - 2));
843 min(sizeof(addr), (int)(port - optarg)));
855 if (uh_inittls(&conf))
858 "Notice: TLS support is disabled, "
859 "ignoring '-s %s'\n", optarg
869 bound += uh_socket_bind(addr[0] ? addr : NULL, port, &hints,
870 (opt == 's'), &conf);
876 if (!uh_inittls(&conf))
878 if (conf.tls_cert(conf.tls, optarg) < 1)
881 "Error: Invalid certificate file given\n");
892 if (!uh_inittls(&conf))
894 if (conf.tls_key(conf.tls, optarg) < 1)
897 "Error: Invalid private key file given\n");
909 "Notice: TLS support not compiled, ignoring -%c\n",
916 if (! realpath(optarg, conf.docroot))
918 fprintf(stderr, "Error: Invalid directory %s: %s\n",
919 optarg, strerror(errno));
926 if ((strlen(optarg) == 0) || (optarg[0] != '/'))
928 fprintf(stderr, "Error: Invalid error handler: %s\n",
932 conf.error_handler = optarg;
937 if ((strlen(optarg) == 0) || (optarg[0] == '/'))
939 fprintf(stderr, "Error: Invalid index page: %s\n",
943 conf.index_file = optarg;
946 /* don't follow symlinks */
948 conf.no_symlinks = 1;
951 /* don't list directories */
953 conf.no_dirlists = 1;
957 conf.rfc1918_filter = 1;
961 conf.max_requests = atoi(optarg);
967 conf.cgi_prefix = optarg;
972 if ((optarg[0] == '.') && (port = strchr(optarg, '=')))
975 uh_interpreter_add(optarg, port);
979 fprintf(stderr, "Error: Invalid interpreter: %s\n",
988 "Notice: CGI support not compiled, ignoring -%c\n",
996 conf.lua_prefix = optarg;
1001 conf.lua_handler = optarg;
1007 "Notice: Lua support not compiled, ignoring -%c\n",
1015 conf.ubus_prefix = optarg;
1020 conf.ubus_socket = optarg;
1026 "Notice: UBUS support not compiled, ignoring -%c\n",
1031 #if defined(HAVE_CGI) || defined(HAVE_LUA)
1032 /* script timeout */
1034 conf.script_timeout = atoi(optarg);
1038 /* network timeout */
1040 conf.network_timeout = atoi(optarg);
1043 /* tcp keep-alive */
1045 conf.tcp_keepalive = atoi(optarg);
1055 if ((port = malloc(strlen(optarg)+1)) != NULL)
1057 /* "decode" plus to space to retain compat */
1058 for (opt = 0; optarg[opt]; opt++)
1059 if (optarg[opt] == '+')
1061 /* opt now contains strlen(optarg) -- no need to re-scan */
1062 memset(port, 0, opt+1);
1063 if (uh_urldecode(port, opt, optarg, opt) < 0)
1064 fprintf(stderr, "uhttpd: invalid encoding\n");
1072 /* basic auth realm */
1074 conf.realm = optarg;
1079 printf("%s\n", crypt(optarg, "$1$"));
1090 "Usage: %s -p [addr:]port [-h docroot]\n"
1091 " -f Do not fork to background\n"
1092 " -c file Configuration file, default is '/etc/httpd.conf'\n"
1093 " -p [addr:]port Bind to specified address and port, multiple allowed\n"
1095 " -s [addr:]port Like -p but provide HTTPS on this port\n"
1096 " -C file ASN.1 server certificate file\n"
1097 " -K file ASN.1 server private key file\n"
1099 " -h directory Specify the document root, default is '.'\n"
1100 " -E string Use given virtual URL as 404 error handler\n"
1101 " -I string Use given filename as index page for directories\n"
1102 " -S Do not follow symbolic links outside of the docroot\n"
1103 " -D Do not allow directory listings, send 403 instead\n"
1104 " -R Enable RFC1918 filter\n"
1105 " -n count Maximum allowed number of concurrent requests\n"
1107 " -l string URL prefix for Lua handler, default is '/lua'\n"
1108 " -L file Lua handler script, omit to disable Lua\n"
1111 " -u string URL prefix for HTTP/JSON handler\n"
1112 " -U file Override ubus socket path\n"
1115 " -x string URL prefix for CGI handler, default is '/cgi-bin'\n"
1116 " -i .ext=path Use interpreter at path for files with the given extension\n"
1118 #if defined(HAVE_CGI) || defined(HAVE_LUA) || defined(HAVE_UBUS)
1119 " -t seconds CGI, Lua and UBUS script timeout in seconds, default is 60\n"
1121 " -T seconds Network timeout in seconds, default is 30\n"
1122 " -d string URL decode given string\n"
1123 " -r string Specify basic auth realm\n"
1124 " -m string MD5 crypt given string\n"
1133 if ((tls == 1) && (keys < 2))
1135 fprintf(stderr, "Error: Missing private key or certificate file\n");
1142 fprintf(stderr, "Error: No sockets bound, unable to continue\n");
1146 /* default docroot */
1147 if (!conf.docroot[0] && !realpath(".", conf.docroot))
1149 fprintf(stderr, "Error: Can not determine default document root: %s\n",
1156 conf.realm = "Protected Area";
1159 uh_config_parse(&conf);
1161 /* default max requests */
1162 if (conf.max_requests <= 0)
1163 conf.max_requests = 3;
1165 /* default network timeout */
1166 if (conf.network_timeout <= 0)
1167 conf.network_timeout = 30;
1169 #if defined(HAVE_CGI) || defined(HAVE_LUA) || defined(HAVE_UBUS)
1170 /* default script timeout */
1171 if (conf.script_timeout <= 0)
1172 conf.script_timeout = 60;
1176 /* default cgi prefix */
1177 if (!conf.cgi_prefix)
1178 conf.cgi_prefix = "/cgi-bin";
1182 /* load Lua plugin */
1183 if (!(lib = dlopen("uhttpd_lua.so", RTLD_LAZY | RTLD_GLOBAL)))
1186 "Notice: Unable to load Lua plugin - disabling Lua support! "
1187 "(Reason: %s)\n", dlerror());
1191 /* resolve functions */
1192 if (!(conf.lua_init = dlsym(lib, "uh_lua_init")) ||
1193 !(conf.lua_close = dlsym(lib, "uh_lua_close")) ||
1194 !(conf.lua_request = dlsym(lib, "uh_lua_request")))
1197 "Error: Failed to lookup required symbols "
1198 "in Lua plugin: %s\n", dlerror()
1203 /* init Lua runtime if handler is specified */
1204 if (conf.lua_handler)
1206 /* default lua prefix */
1207 if (!conf.lua_prefix)
1208 conf.lua_prefix = "/lua";
1210 conf.lua_state = conf.lua_init(&conf);
1216 /* load ubus plugin */
1217 if (!(lib = dlopen("uhttpd_ubus.so", RTLD_LAZY | RTLD_GLOBAL)))
1220 "Notice: Unable to load ubus plugin - disabling ubus support! "
1221 "(Reason: %s)\n", dlerror());
1223 else if (conf.ubus_prefix)
1225 /* resolve functions */
1226 if (!(conf.ubus_init = dlsym(lib, "uh_ubus_init")) ||
1227 !(conf.ubus_close = dlsym(lib, "uh_ubus_close")) ||
1228 !(conf.ubus_request = dlsym(lib, "uh_ubus_request")))
1231 "Error: Failed to lookup required symbols "
1232 "in ubus plugin: %s\n", dlerror()
1237 /* initialize ubus */
1238 conf.ubus_state = conf.ubus_init(&conf);
1242 /* fork (if not disabled) */
1256 if ((cur_fd = open("/dev/null", O_WRONLY)) > -1)
1259 if ((cur_fd = open("/dev/null", O_RDONLY)) > -1)
1262 if ((cur_fd = open("/dev/null", O_RDONLY)) > -1)
1272 /* server main loop */
1276 /* destroy the Lua state */
1277 if (conf.lua_state != NULL)
1278 conf.lua_close(conf.lua_state);
1282 /* destroy the ubus state */
1283 if (conf.ubus_state != NULL)
1284 conf.ubus_close(conf.ubus_state);