2 * Copyright (c) 1996-2012 by the citadel.org team
4 * This program is open source software. You can redistribute it and/or
5 * modify it under the terms of the GNU General Public License version 3.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
14 #include "webserver.h"
16 #include "modules_init.h"
18 int vsnprintf(char *buf, size_t max, const char *fmt, va_list argp);
21 extern int msock; /* master listening socket */
22 extern char static_icon_dir[PATH_MAX]; /* where should we find our mime icons */
23 int is_https = 0; /* Nonzero if I am an HTTPS service */
24 int follow_xff = 0; /* Follow X-Forwarded-For: header? */
26 char *default_landing_page = NULL;
27 extern pthread_mutex_t SessionListMutex;
28 extern pthread_key_t MyConKey;
30 extern void *housekeeping_loop(void);
31 extern int webcit_tcp_server(char *ip_addr, int port_number, int queue_len);
32 extern int webcit_uds_server(char *sockpath, int queue_len);
33 extern void graceful_shutdown_watcher(int signum);
34 extern void graceful_shutdown(int signum);
35 extern void start_daemon(char *pid_file);
36 extern void webcit_calc_dirs_n_files(int relh, const char *basedir, int home, char *webcitdir, char *relhome);
37 extern void worker_entry(void);
38 extern void drop_root(uid_t UID);
40 char socket_dir[PATH_MAX]; /* where to talk to our citadel server */
41 char *server_cookie = NULL; /* our Cookie connection to the client */
42 int http_port = PORT_NUM; /* Port to listen on */
43 char *ctdlhost = DEFAULT_HOST; /* Host name or IP address of Citadel server */
44 char *ctdlport = DEFAULT_PORT; /* Port number of Citadel server */
45 int setup_wizard = 0; /* should we run the setup wizard? */
46 char wizard_filename[PATH_MAX]; /* location of file containing the last webcit version against which we ran setup wizard */
47 int running_as_daemon = 0; /* should we deamonize on startup? */
49 /* #define DBG_PRINNT_HOOKS_AT_START */
50 #ifdef DBG_PRINNT_HOOKS_AT_START
51 extern HashList *HandlerHash;
52 const char foobuf[32];
53 const char *nix(void *vptr) {snprintf(foobuf, 32, "%0x", (long) vptr); return foobuf;}
55 extern int dbg_analyze_msg;
56 extern int dbg_backtrace_template_errors;
57 extern int DumpTemplateI18NStrings;
58 extern StrBuf *I18nDump;
59 void InitTemplateCache(void);
60 extern int LoadTemplates;
64 * Here's where it all begins.
66 int main(int argc, char **argv)
69 size_t basesize = 2; /* how big should strbufs be on creation? */
70 pthread_t SessThread; /* Thread descriptor */
71 pthread_attr_t attr; /* Thread attributes */
72 int a; /* General-purpose variable */
73 char ip_addr[256]="*";
76 char relhome[PATH_MAX]="";
77 char webcitdir[PATH_MAX] = DATADIR;
80 const char *basedir = NULL;
81 char uds_listen_path[PATH_MAX]; /* listen on a unix domain socket? */
82 const char *I18nDumpFile = NULL;
84 WildFireInitBacktrace(argv[0], 2);
88 #ifdef DBG_PRINNT_HOOKS_AT_START
89 /* dbg_PrintHash(HandlerHash, nix, NULL);*/
92 /* Ensure that we are linked to the correct version of libcitadel */
93 if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
94 fprintf(stderr, " You are running libcitadel version %d.%02d\n",
95 (libcitadel_version_number() / 100), (libcitadel_version_number() % 100));
96 fprintf(stderr, "WebCit was compiled against version %d.%02d\n",
97 (LIBCITADEL_VERSION_NUMBER / 100), (LIBCITADEL_VERSION_NUMBER % 100));
101 strcpy(uds_listen_path, "");
103 /* Parse command line */
105 while ((a = getopt(argc, argv, "u:h:i:p:t:T:B:x:g:dD:G:cfsS:Z")) != EOF)
107 while ((a = getopt(argc, argv, "u:h:i:p:t:T:B:x:g:dD:G:cfZ")) != EOF)
114 hdir = strdup(optarg);
117 safestrncpy(webcitdir, hdir, sizeof webcitdir);
120 safestrncpy(relhome, relhome, sizeof relhome);
122 /* free(hdir); TODO: SHOULD WE DO THIS? */
126 running_as_daemon = 1;
129 pidfile = strdup(optarg);
130 running_as_daemon = 1;
133 default_landing_page = strdup(optarg);
135 case 'B': /* Basesize */
136 basesize = atoi(optarg);
138 StartLibCitadel(basesize);
141 safestrncpy(ip_addr, optarg, sizeof ip_addr);
144 http_port = atoi(optarg);
145 if (http_port == 0) {
146 safestrncpy(uds_listen_path, optarg, sizeof uds_listen_path);
150 /* no longer used, but ignored so old scripts don't break */
153 LoadTemplates = atoi(optarg);
154 dbg_analyze_msg = (LoadTemplates && (1<<1)) != 0;
155 dbg_backtrace_template_errors = (LoadTemplates && (1<<2)) != 0;
161 /* no longer used, but ignored so old scripts don't break */
167 server_cookie = malloc(256);
168 if (server_cookie != NULL) {
169 safestrncpy(server_cookie,
170 "Set-cookie: wcserver=",
173 (&server_cookie[strlen(server_cookie)],
175 syslog(2, "gethostname: %s", strerror(errno));
186 ssl_cipher_list = strdup(optarg);
190 DumpTemplateI18NStrings = 1;
191 I18nDump = NewStrBufPlain(HKEY("int templatestrings(void)\n{\n"));
192 I18nDumpFile = optarg;
195 fprintf(stderr, "usage: webcit "
196 "[-i ip_addr] [-p http_port] "
198 "[-T Templatedebuglevel] "
199 "[-d] [-Z] [-G i18ndumpfile] "
201 "[-s] [-S cipher_suites]"
203 "[remotehost [remoteport]]\n");
207 /* Start the logger */
209 ( running_as_daemon ? (LOG_PID) : (LOG_PID | LOG_PERROR) ),
214 ctdlhost = argv[optind];
216 ctdlport = argv[optind];
219 /* daemonize, if we were asked to */
220 if (!DumpTemplateI18NStrings && running_as_daemon) {
221 start_daemon(pidfile);
224 signal(SIGINT, graceful_shutdown);
225 signal(SIGHUP, graceful_shutdown);
228 webcit_calc_dirs_n_files(relh, basedir, home, webcitdir, relhome);
229 LoadIconDir(static_icon_dir);
231 /* Tell 'em who's in da house */
232 syslog(1, "%s", PACKAGE_STRING);
233 syslog(1, "Copyright (C) 1996-2012 by the citadel.org team");
235 syslog(1, "This program is open source software: you can redistribute it and/or");
236 syslog(1, "modify it under the terms of the GNU General Public License as published");
237 syslog(1, "by the Free Software Foundation, either version 3 of the License, or");
238 syslog(1, "(at your option) any later version.");
240 syslog(1, "This program is distributed in the hope that it will be useful,");
241 syslog(1, "but WITHOUT ANY WARRANTY; without even the implied warranty of");
242 syslog(1, "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the");
243 syslog(1, "GNU General Public License for more details.");
245 syslog(1, "You should have received a copy of the GNU General Public License");
246 syslog(1, "along with this program. If not, see <http://www.gnu.org/licenses/>.");
250 /* initialize various subsystems */
252 initialise_modules();
253 initialise2_modules();
255 if (DumpTemplateI18NStrings) {
257 StrBufAppendBufPlain(I18nDump, HKEY("}\n"), 0);
258 if (StrLength(I18nDump) < 50) {
259 syslog(1, "*******************************************************************\n");
260 syslog(1, "* No strings found in templates! Are you sure they're there? *\n");
261 syslog(1, "*******************************************************************\n");
264 fd = fopen(I18nDumpFile, "w");
266 syslog(1, "***********************************************\n");
267 syslog(1, "* unable to open I18N dumpfile [%s] *\n", I18nDumpFile);
268 syslog(1, "***********************************************\n");
271 fwrite(ChrPtr(I18nDump), 1, StrLength(I18nDump), fd);
276 /* Tell libical to return an error instead of aborting if it sees badly formed iCalendar data. */
277 icalerror_errors_are_fatal = 0;
279 /* Use our own prefix on tzid's generated from system tzdata */
280 icaltimezone_set_tzid_prefix("/citadel.org/");
283 * Set up a place to put thread-specific data.
284 * We only need a single pointer per thread - it points to the
285 * wcsession struct to which the thread is currently bound.
287 if (pthread_key_create(&MyConKey, NULL) != 0) {
288 syslog(1, "Can't create TSD key: %s", strerror(errno));
290 InitialiseSemaphores();
293 * Set up a place to put thread-specific SSL data.
294 * We don't stick this in the wcsession struct because SSL starts
295 * up before the session is bound, and it gets torn down between
299 if (pthread_key_create(&ThreadSSL, NULL) != 0) {
300 syslog(1, "Can't create TSD key: %s", strerror(errno));
305 * Bind the server to our favorite port.
306 * There is no need to check for errors, because webcit_tcp_server()
307 * exits if it doesn't succeed.
310 if (!IsEmptyStr(uds_listen_path)) {
311 syslog(2, "Attempting to create listener socket at %s...", uds_listen_path);
312 msock = webcit_uds_server(uds_listen_path, LISTEN_QUEUE_LENGTH);
315 syslog(2, "Attempting to bind to port %d...", http_port);
316 msock = webcit_tcp_server(ip_addr, http_port, LISTEN_QUEUE_LENGTH);
324 syslog(2, "Listening on socket %d", msock);
325 signal(SIGPIPE, SIG_IGN);
327 pthread_mutex_init(&SessionListMutex, NULL);
330 * Start up the housekeeping thread
332 pthread_attr_init(&attr);
333 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
334 pthread_create(&SessThread, &attr, (void *(*)(void *)) housekeeping_loop, NULL);
337 * If this is an HTTPS server, fire up SSL
346 /* Become a worker thread. More worker threads will be spawned as they are needed. */
348 ShutDownLibCitadel();