#include "webcit.h"
#include "webserver.h"
-#if HAVE_BACKTRACE
-#include <execinfo.h>
-#endif
#include "modules_init.h"
#ifndef HAVE_SNPRINTF
int vsnprintf(char *buf, size_t max, const char *fmt, va_list argp);
#endif
-int verbosity = 9; /* Logging level */
-int msock; /* master listening socket */
+
+extern int msock; /* master listening socket */
+extern int verbosity; /* Logging level */
+extern char static_icon_dir[PATH_MAX]; /* where should we find our mime icons */
+
int is_https = 0; /* Nonzero if I am an HTTPS service */
int follow_xff = 0; /* Follow X-Forwarded-For: header */
int home_specified = 0; /* did the user specify a homedir? */
-int time_to_die = 0; /* Nonzero if server is shutting down */
int DisableGzip = 0;
-extern void *context_loop(ParsedHttpHdrs *Hdr);
-extern void *housekeeping_loop(void);
extern pthread_mutex_t SessionListMutex;
extern pthread_key_t MyConKey;
+extern void *housekeeping_loop(void);
extern int ig_tcp_server(char *ip_addr, int port_number, int queue_len);
extern int ig_uds_server(char *sockpath, int queue_len);
+extern void graceful_shutdown_watcher(int signum);
+extern void graceful_shutdown(int signum);
+extern void start_daemon(char *pid_file);
+extern void webcit_calc_dirs_n_files(int relh, const char *basedir, int home, char *webcitdir, char *relhome);
extern void drop_root(uid_t UID);
-char ctdl_key_dir[PATH_MAX]=SSL_DIR;
-char file_crpt_file_key[PATH_MAX]="";
-char file_crpt_file_csr[PATH_MAX]="";
-char file_crpt_file_cer[PATH_MAX]="";
-
char socket_dir[PATH_MAX]; /* where to talk to our citadel server */
-const char editor_absolut_dir[PATH_MAX]=EDITORDIR; /* nailed to what configure gives us. */
-char static_dir[PATH_MAX]; /* calculated on startup */
-char static_local_dir[PATH_MAX]; /* calculated on startup */
-char static_icon_dir[PATH_MAX]; /* where should we find our mime icons? */
-char *static_dirs[]={ /* needs same sort order as the web mapping */
- (char*)static_dir, /* our templates on disk */
- (char*)static_local_dir, /* user provided templates disk */
- (char*)editor_absolut_dir, /* the editor on disk */
- (char*)static_icon_dir /* our icons... */
-};
-
-/*
- * Subdirectories from which the client may request static content
- *
- * (If you add more, remember to increment 'ndirs' below)
- */
-char *static_content_dirs[] = {
- "static", /* static templates */
- "static.local", /* site local static templates */
- "tiny_mce" /* rich text editor */
-};
-
-int ndirs=3;
-
char *server_cookie = NULL; /* our Cookie connection to the client */
int http_port = PORT_NUM; /* Port to listen on */
-/*
- * Shut us down the regular way.
- * signum is the signal we want to forward
- */
-pid_t current_child;
-void graceful_shutdown_watcher(int signum) {
- lprintf (1, "bye; shutting down watcher.");
- kill(current_child, signum);
- if (signum != SIGHUP)
- exit(0);
-}
-
-
-
-
-/*
- * Shut us down the regular way.
- * signum is the signal we want to forward
- */
-pid_t current_child;
-void graceful_shutdown(int signum) {
- FILE *FD;
- int fd;
-
- lprintf (1, "WebCit is being shut down on signal %d.\n", signum);
- fd = msock;
- msock = -1;
- time_to_die = 1;
- FD=fdopen(fd, "a+");
- fflush (FD);
- fclose (FD);
- close(fd);
-}
-
-
-/*
- * Start running as a daemon.
- */
-void start_daemon(char *pid_file)
-{
- int status = 0;
- pid_t child = 0;
- FILE *fp;
- int do_restart = 0;
- int rv;
- FILE *rvfp = NULL;
-
- current_child = 0;
-
- /* Close stdin/stdout/stderr and replace them with /dev/null.
- * We don't just call close() because we don't want these fd's
- * to be reused for other files.
- */
- rv = chdir("/");
-
- signal(SIGHUP, SIG_IGN);
- signal(SIGINT, SIG_IGN);
- signal(SIGQUIT, SIG_IGN);
-
- child = fork();
- if (child != 0) {
- exit(0);
- }
-
- setsid();
- umask(0);
- rvfp = freopen("/dev/null", "r", stdin);
- rvfp = freopen("/dev/null", "w", stdout);
- rvfp = freopen("/dev/null", "w", stderr);
- signal(SIGTERM, graceful_shutdown_watcher);
- signal(SIGHUP, graceful_shutdown_watcher);
-
- do {
- current_child = fork();
-
-
- if (current_child < 0) {
- perror("fork");
- ShutDownLibCitadel ();
- exit(errno);
- }
-
- else if (current_child == 0) { /* child process */
- signal(SIGHUP, graceful_shutdown);
-
- return; /* continue starting webcit. */
- }
- else { /* watcher process */
- if (pid_file) {
- fp = fopen(pid_file, "w");
- if (fp != NULL) {
- fprintf(fp, "%d\n", getpid());
- fclose(fp);
- }
- }
- waitpid(current_child, &status, 0);
- }
-
- do_restart = 0;
-
- /* Did the main process exit with an actual exit code? */
- if (WIFEXITED(status)) {
-
- /* Exit code 0 means the watcher should exit */
- if (WEXITSTATUS(status) == 0) {
- do_restart = 0;
- }
-
- /* Exit code 101-109 means the watcher should exit */
- else if ( (WEXITSTATUS(status) >= 101) && (WEXITSTATUS(status) <= 109) ) {
- do_restart = 0;
- }
-
- /* Any other exit code means we should restart. */
- else {
- do_restart = 1;
- }
- }
-
- /* Any other type of termination (signals, etc.) should also restart. */
- else {
- do_restart = 1;
- }
-
- } while (do_restart);
-
- if (pid_file) {
- unlink(pid_file);
- }
- ShutDownLibCitadel ();
- exit(WEXITSTATUS(status));
-}
-
-/*
- * Spawn an additional worker thread into the pool.
- */
-void spawn_another_worker_thread()
-{
- pthread_t SessThread; /* Thread descriptor */
- pthread_attr_t attr; /* Thread attributes */
- int ret;
-
- lprintf(3, "Creating a new thread. Pool size is now %d\n", ++num_threads);
-
- /* set attributes for the new thread */
- pthread_attr_init(&attr);
- pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-
- /*
- * Our per-thread stacks need to be bigger than the default size,
- * otherwise the MIME parser crashes on FreeBSD.
- */
- if ((ret = pthread_attr_setstacksize(&attr, 1024 * 1024))) {
- lprintf(1, "pthread_attr_setstacksize: %s\n",
- strerror(ret));
- pthread_attr_destroy(&attr);
- }
-
- /* now create the thread */
- if (pthread_create(&SessThread, &attr,
- (void *(*)(void *)) worker_entry, NULL)
- != 0) {
- lprintf(1, "Can't create thread: %s\n", strerror(errno));
- }
-
- /* free up the attributes */
- pthread_attr_destroy(&attr);
-}
-
/* #define DBG_PRINNT_HOOKS_AT_START */
#ifdef DBG_PRINNT_HOOKS_AT_START
+extern HashList *HandlerHash;
const char foobuf[32];
const char *nix(void *vptr) {snprintf(foobuf, 32, "%0x", (long) vptr); return foobuf;}
#endif
void InitTemplateCache(void);
extern int LoadTemplates;
-extern HashList *HandlerHash;
-void
-webcit_calc_dirs_n_files(int relh, const char *basedir, int home, char *webcitdir, char *relhome)
-{
- char dirbuffer[PATH_MAX]="";
- /* calculate all our path on a central place */
- /* where to keep our config */
-
-#define COMPUTE_DIRECTORY(SUBDIR) memcpy(dirbuffer,SUBDIR, sizeof dirbuffer);\
- snprintf(SUBDIR,sizeof SUBDIR, "%s%s%s%s%s%s%s", \
- (home&!relh)?webcitdir:basedir, \
- ((basedir!=webcitdir)&(home&!relh))?basedir:"/", \
- ((basedir!=webcitdir)&(home&!relh))?"/":"", \
- relhome, \
- (relhome[0]!='\0')?"/":"",\
- dirbuffer,\
- (dirbuffer[0]!='\0')?"/":"");
- basedir=RUNDIR;
- COMPUTE_DIRECTORY(socket_dir);
- basedir=WWWDIR "/static";
- COMPUTE_DIRECTORY(static_dir);
- basedir=WWWDIR "/static/icons";
- COMPUTE_DIRECTORY(static_icon_dir);
- basedir=WWWDIR "/static.local";
- COMPUTE_DIRECTORY(static_local_dir);
- StripSlashes(static_dir, 1);
- StripSlashes(static_icon_dir, 1);
- StripSlashes(static_local_dir, 1);
-
- snprintf(file_crpt_file_key,
- sizeof file_crpt_file_key,
- "%s/citadel.key",
- ctdl_key_dir);
- snprintf(file_crpt_file_csr,
- sizeof file_crpt_file_csr,
- "%s/citadel.csr",
- ctdl_key_dir);
- snprintf(file_crpt_file_cer,
- sizeof file_crpt_file_cer,
- "%s/citadel.cer",
- ctdl_key_dir);
-
- /* we should go somewhere we can leave our coredump, if enabled... */
- lprintf(9, "Changing directory to %s\n", socket_dir);
- if (chdir(webcitdir) != 0) {
- perror("chdir");
- }
-}
/*
* Here's where it all begins.
*/
}
-void ShutDownWebcit(void)
-{
- free_zone_directory ();
- icaltimezone_release_zone_tab ();
- icalmemory_free_ring ();
- ShutDownLibCitadel ();
- shutdown_modules ();
-#ifdef HAVE_OPENSSL
- if (is_https) {
- shutdown_ssl();
- }
-#endif
-}
-
-/*
- * Entry point for worker threads
- */
-void worker_entry(void)
-{
- int ssock;
- int i = 0;
- int fail_this_transaction = 0;
- int ret;
- struct timeval tv;
- fd_set readset, tempset;
- ParsedHttpHdrs Hdr;
-
- memset(&Hdr, 0, sizeof(ParsedHttpHdrs));
- Hdr.HR.eReqType = eGET;
- http_new_modules(&Hdr);
- tv.tv_sec = 0;
- tv.tv_usec = 10000;
- FD_ZERO(&readset);
- FD_SET(msock, &readset);
-
- do {
- /* Only one thread can accept at a time */
- fail_this_transaction = 0;
- ssock = -1;
- errno = EAGAIN;
- do {
- ret = -1; /* just one at once should select... */
- begin_critical_section(S_SELECT);
-
- FD_ZERO(&tempset);
- if (msock > 0) FD_SET(msock, &tempset);
- tv.tv_sec = 0;
- tv.tv_usec = 10000;
- if (msock > 0) ret = select(msock+1, &tempset, NULL, NULL, &tv);
- end_critical_section(S_SELECT);
- if ((ret < 0) && (errno != EINTR) && (errno != EAGAIN))
- {/* EINTR and EAGAIN are thrown but not of interest. */
- lprintf(2, "accept() failed:%d %s\n",
- errno, strerror(errno));
- }
- else if ((ret > 0) && (msock > 0) && FD_ISSET(msock, &tempset))
- {/* Successfully selected, and still not shutting down? Accept! */
- ssock = accept(msock, NULL, 0);
- }
-
- } while ((msock > 0) && (ssock < 0) && (time_to_die == 0));
-
- if ((msock == -1)||(time_to_die))
- {/* ok, we're going down. */
- int shutdown = 0;
-
- /* the first to come here will have to do the cleanup.
- * make shure its realy just one.
- */
- begin_critical_section(S_SHUTDOWN);
- if (msock == -1)
- {
- msock = -2;
- shutdown = 1;
- }
- end_critical_section(S_SHUTDOWN);
- if (shutdown == 1)
- {/* we're the one to cleanup the mess. */
- http_destroy_modules(&Hdr);
- lprintf(2, "I'm master shutdown: tagging sessions to be killed.\n");
- shutdown_sessions();
- lprintf(2, "master shutdown: waiting for others\n");
- sleeeeeeeeeep(1); /* wait so some others might finish... */
- lprintf(2, "master shutdown: cleaning up sessions\n");
- do_housekeeping();
- lprintf(2, "master shutdown: cleaning up libical\n");
-
- ShutDownWebcit();
-
- lprintf(2, "master shutdown exiting!.\n");
- exit(0);
- }
- break;
- }
- if (ssock < 0 ) continue;
-
- if (msock < 0) {
- if (ssock > 0) close (ssock);
- lprintf(2, "inbetween.");
- pthread_exit(NULL);
- } else { /* Got it? do some real work! */
- /* Set the SO_REUSEADDR socket option */
- i = 1;
- setsockopt(ssock, SOL_SOCKET, SO_REUSEADDR,
- &i, sizeof(i));
-
- /* If we are an HTTPS server, go crypto now. */
-#ifdef HAVE_OPENSSL
- if (is_https) {
- if (starttls(ssock) != 0) {
- fail_this_transaction = 1;
- close(ssock);
- }
- }
- else
-#endif
- {
- int fdflags;
- fdflags = fcntl(ssock, F_GETFL);
- if (fdflags < 0)
- lprintf(1, "unable to get server socket flags! %s \n",
- strerror(errno));
- fdflags = fdflags | O_NONBLOCK;
- if (fcntl(ssock, F_SETFL, fdflags) < 0)
- lprintf(1, "unable to set server socket nonblocking flags! %s \n",
- strerror(errno));
- }
-
- if (fail_this_transaction == 0) {
- Hdr.http_sock = ssock;
-
- /* Perform an HTTP transaction... */
- context_loop(&Hdr);
-
- /* Shut down SSL/TLS if required... */
-#ifdef HAVE_OPENSSL
- if (is_https) {
- endtls();
- }
-#endif
-
- /* ...and close the socket. */
- if (Hdr.http_sock > 0)
- lingering_close(ssock);
- http_detach_modules(&Hdr);
-
- }
-
- }
-
- } while (!time_to_die);
-
- http_destroy_modules(&Hdr);
- lprintf (1, "bye\n");
- pthread_exit(NULL);
-}
-
-/*
- * print log messages
- * logs to stderr if loglevel is lower than the verbosity set at startup
- *
- * loglevel level of the message
- * format the printf like format string
- * ... the strings to put into format
- */
-int lprintf(int loglevel, const char *format, ...)
-{
- va_list ap;
-
- if (loglevel <= verbosity) {
- va_start(ap, format);
- vfprintf(stderr, format, ap);
- va_end(ap);
- fflush(stderr);
- }
- return 1;
-}
-
-/*
- * print the actual stack frame.
- */
-void wc_backtrace(void)
-{
-#ifdef HAVE_BACKTRACE
- void *stack_frames[50];
- size_t size, i;
- char **strings;
-
-
- size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*));
- strings = backtrace_symbols(stack_frames, size);
- for (i = 0; i < size; i++) {
- if (strings != NULL)
- lprintf(1, "%s\n", strings[i]);
- else
- lprintf(1, "%p\n", stack_frames[i]);
- }
- free(strings);
-#endif
-}
projects / citadel.git / blobdiff