1 // Copyright (c) 1996-2022 by the citadel.org team
3 // This program is open source software. You can redistribute it and/or
4 // modify it under the terms of the GNU General Public License version 3.
6 // This program is distributed in the hope that it will be useful,
7 // but WITHOUT ANY WARRANTY; without even the implied warranty of
8 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 // GNU General Public License for more details.
12 #include "webserver.h"
13 #include "modules_init.h"
15 extern int msock; /* master listening socket */
16 extern char static_icon_dir[PATH_MAX]; /* where should we find our mime icons */
17 int is_https = 0; /* Nonzero if I am an HTTPS service */
18 int follow_xff = 0; /* Follow X-Forwarded-For: header? */
20 char *default_landing_page = NULL;
21 extern pthread_mutex_t SessionListMutex;
23 extern void *housekeeping_loop(void);
24 extern int webcit_tcp_server(char *ip_addr, int port_number, int queue_len);
25 extern int webcit_uds_server(char *sockpath, int queue_len);
26 extern void graceful_shutdown_watcher(int signum);
27 extern void graceful_shutdown(int signum);
28 extern void start_daemon(char *pid_file);
29 extern void webcit_calc_dirs_n_files(int relh, const char *basedir, int home, char *webcitdir, char *relhome);
30 extern void worker_entry(void);
31 extern void drop_root(uid_t UID);
33 char socket_dir[PATH_MAX]; /* where to talk to our citadel server */
34 char *server_cookie = NULL; /* our Cookie connection to the client */
35 int http_port = PORT_NUM; /* Port to listen on */
36 int running_as_daemon = 0; /* should we deamonize on startup? */
37 char *ctdl_dir = DEFAULT_CTDLDIR; /* Directory where Citadel Server is running */
39 /* #define DBG_PRINNT_HOOKS_AT_START */
40 #ifdef DBG_PRINNT_HOOKS_AT_START
41 extern HashList *HandlerHash;
42 const char foobuf[32];
43 const char *nix(void *vptr) {snprintf(foobuf, 32, "%0x", (long) vptr); return foobuf;}
46 extern int dbg_analyze_msg;
47 extern int dbg_backtrace_template_errors;
48 extern int DumpTemplateI18NStrings;
49 extern StrBuf *I18nDump;
50 void InitTemplateCache(void);
51 extern int LoadTemplates;
53 void LoadMimeBlacklist(void);
56 * Here's where it all begins.
58 int main(int argc, char **argv) {
60 pthread_t SessThread; /* Thread descriptor */
61 pthread_attr_t attr; /* Thread attributes */
62 int a; /* General-purpose variable */
63 char ip_addr[256]="*";
66 char relhome[PATH_MAX]="";
67 char webcitdir[PATH_MAX] = DATADIR;
70 const char *basedir = NULL;
71 char uds_listen_path[PATH_MAX]; /* listen on a unix domain socket? */
72 const char *I18nDumpFile = NULL;
73 int max_log_level = LOG_INFO;
75 WildFireInitBacktrace(argv[0], 2);
79 #ifdef DBG_PRINNT_HOOKS_AT_START
80 /* dbg_PrintHash(HandlerHash, nix, NULL);*/
83 /* Ensure that we are linked to the correct version of libcitadel */
84 if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
85 fprintf(stderr, " You are running libcitadel version %d\n", libcitadel_version_number() );
86 fprintf(stderr, "WebCit was compiled against version %d\n", LIBCITADEL_VERSION_NUMBER );
90 strcpy(uds_listen_path, "");
92 /* Parse command line */
94 while ((a = getopt(argc, argv, "u:h:i:p:t:T:B:x:g:dD:G:cfsS:Z:v:")) != EOF)
96 while ((a = getopt(argc, argv, "u:h:i:p:t:T:B:x:g:dD:G:cfZ:v:")) != EOF)
103 hdir = strdup(optarg);
106 safestrncpy(webcitdir, hdir, sizeof webcitdir);
109 safestrncpy(relhome, relhome, sizeof relhome);
114 running_as_daemon = 1;
117 pidfile = strdup(optarg);
118 running_as_daemon = 1;
121 default_landing_page = strdup(optarg);
123 case 'B': /* deprecated */
126 safestrncpy(ip_addr, optarg, sizeof ip_addr);
129 http_port = atoi(optarg);
130 if (http_port == 0) {
131 safestrncpy(uds_listen_path, optarg, sizeof uds_listen_path);
135 /* no longer used, but ignored so old scripts don't break */
138 LoadTemplates = atoi(optarg);
139 dbg_analyze_msg = (LoadTemplates & (1<<1)) != 0;
140 dbg_backtrace_template_errors = (LoadTemplates & (1<<2)) != 0;
146 max_log_level = atoi(optarg);
152 server_cookie = malloc(256);
153 if (server_cookie != NULL) {
154 safestrncpy(server_cookie, "Set-cookie: wcserver=", 256);
155 if (gethostname (&server_cookie[strlen(server_cookie)], 200) != 0) {
156 syslog(LOG_INFO, "gethostname: %s", strerror(errno));
167 ssl_cipher_list = strdup(optarg);
171 DumpTemplateI18NStrings = 1;
172 I18nDump = NewStrBufPlain(HKEY("int templatestrings(void)\n{\n"));
173 I18nDumpFile = optarg;
179 fprintf(stderr, "usage:\nwebcit "
180 "[-i ip_addr] [-p http_port] "
182 "[-T Templatedebuglevel] "
183 "[-d] [-Z] [-G i18ndumpfile] "
184 "[-u uid] [-h homedirectory] "
185 "[-D daemonizepid] [-v] "
186 "[-g defaultlandingpage] "
188 "[-s] [-S cipher_suites]"
190 "[citadel_server_directory]\n");
194 /* Start the logger */
195 setlogmask(LOG_UPTO(max_log_level));
197 ( running_as_daemon ? (LOG_PID) : (LOG_PID | LOG_PERROR) ),
201 while (optind < argc) {
202 ctdl_dir = strdup(argv[optind]);
206 /* daemonize, if we were asked to */
207 if (!DumpTemplateI18NStrings && running_as_daemon) {
208 start_daemon(pidfile);
211 signal(SIGINT, graceful_shutdown);
212 signal(SIGHUP, graceful_shutdown);
215 webcit_calc_dirs_n_files(relh, basedir, home, webcitdir, relhome);
217 LoadIconDir(static_icon_dir);
219 /* Tell 'em who's in da house */
220 syslog(LOG_NOTICE, "%s", PACKAGE_STRING);
221 syslog(LOG_NOTICE, "Copyright (C) 1996-2022 by the citadel.org team");
222 syslog(LOG_NOTICE, " ");
223 syslog(LOG_NOTICE, "This program is open source software: you can redistribute it and/or");
224 syslog(LOG_NOTICE, "modify it under the terms of the GNU General Public License, version 3.");
225 syslog(LOG_NOTICE, " ");
226 syslog(LOG_NOTICE, "This program is distributed in the hope that it will be useful,");
227 syslog(LOG_NOTICE, "but WITHOUT ANY WARRANTY; without even the implied warranty of");
228 syslog(LOG_NOTICE, "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the");
229 syslog(LOG_NOTICE, "GNU General Public License for more details.");
230 syslog(LOG_NOTICE, " ");
232 /* run from the webcit home directory */
233 if (chdir(webcitdir) != 0) {
234 syslog(LOG_ERR, "webcit: %s: %m", webcitdir);
238 /* initialize various subsystems */
239 initialise_modules();
240 initialise2_modules();
242 if (DumpTemplateI18NStrings) {
244 StrBufAppendBufPlain(I18nDump, HKEY("}\n"), 0);
245 if (StrLength(I18nDump) < 50) {
246 syslog(LOG_INFO, "*******************************************************************\n");
247 syslog(LOG_INFO, "* No strings found in templates! Are you sure they're there? *\n");
248 syslog(LOG_INFO, "*******************************************************************\n");
251 fd = fopen(I18nDumpFile, "w");
253 syslog(LOG_INFO, "***********************************************\n");
254 syslog(LOG_INFO, "* unable to open I18N dumpfile [%s] *\n", I18nDumpFile);
255 syslog(LOG_INFO, "***********************************************\n");
258 fwrite(ChrPtr(I18nDump), 1, StrLength(I18nDump), fd);
263 /* Tell libical to return an error instead of aborting if it sees badly formed iCalendar data. */
265 #ifdef LIBICAL_ICAL_EXPORT // cheap and sleazy way to detect libical >=2.0
266 icalerror_set_errors_are_fatal(0);
268 icalerror_errors_are_fatal = 0;
271 /* Use our own prefix on tzid's generated from system tzdata */
272 icaltimezone_set_tzid_prefix("/citadel.org/");
275 * Set up a place to put thread-specific data.
276 * We only need a single pointer per thread - it points to the
277 * wcsession struct to which the thread is currently bound.
279 if (pthread_key_create(&MyConKey, NULL) != 0) {
280 syslog(LOG_ERR, "Can't create TSD key: %s", strerror(errno));
282 InitialiseSemaphores();
285 * Set up a place to put thread-specific SSL data.
286 * We don't stick this in the wcsession struct because SSL starts
287 * up before the session is bound, and it gets torn down between
291 if (pthread_key_create(&ThreadSSL, NULL) != 0) {
292 syslog(LOG_ERR, "Can't create TSD key: %s", strerror(errno));
297 * Bind the server to our favorite port.
298 * There is no need to check for errors, because webcit_tcp_server()
299 * exits if it doesn't succeed.
302 if (!IsEmptyStr(uds_listen_path)) {
303 syslog(LOG_DEBUG, "Attempting to create listener socket at %s...", uds_listen_path);
304 msock = webcit_uds_server(uds_listen_path, LISTEN_QUEUE_LENGTH);
307 syslog(LOG_DEBUG, "Attempting to bind to port %d...", http_port);
308 msock = webcit_tcp_server(ip_addr, http_port, LISTEN_QUEUE_LENGTH);
316 syslog(LOG_INFO, "Listening on socket %d", msock);
317 signal(SIGPIPE, SIG_IGN);
319 pthread_mutex_init(&SessionListMutex, NULL);
321 // Start up the housekeeping thread
322 pthread_attr_init(&attr);
323 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
324 pthread_create(&SessThread, &attr, (void *(*)(void *)) housekeeping_loop, NULL);
326 // If this is an HTTPS server, fire up SSL
334 // Become a worker thread. More worker threads will be spawned as they are needed.
336 ShutDownLibCitadel();