/*
- * $Id: sysdep.c 5691 2007-11-04 23:19:17Z dothebart $
+ * WebCit "system dependent" code.
*
- * Citadel "system dependent" stuff.
- * See copyright.txt for copyright information.
+ * Copyright (c) 1996-2021 by the citadel.org team
*
- * Here's where we (hopefully) have most parts of the Citadel server that
- * would need to be altered to run the server in a non-POSIX environment.
- *
- * If we ever port to a different platform and either have multiple
- * variants of this file or simply load it up with #ifdefs.
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 3.
*
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*/
+
#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <syslog.h>
#include <sys/syslog.h>
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
+#include <time.h>
#include <limits.h>
#include <sys/resource.h>
#include <netinet/in.h>
#include <sys/select.h>
#endif
-#ifndef HAVE_SNPRINTF
-#include "snprintf.h"
-#endif
-#include "webserver.h"
+
#include "modules_init.h"
#if HAVE_BACKTRACE
#include <execinfo.h>
pthread_key_t MyReq; /* TSD key for MyReq() */
int msock; /* master listening socket */
int time_to_die = 0; /* Nonzero if server is shutting down */
-int verbosity = 9; /* Logging level */
extern void *context_loop(ParsedHttpHdrs *Hdr);
extern void *housekeeping_loop(void);
+extern void do_housekeeping(void);
-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 file_etc_mimelist[PATH_MAX]="";
-const char editor_absolut_dir[PATH_MAX]=EDITORDIR; /* nailed to what configure gives us. */
+char etc_dir[PATH_MAX];
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... */
+ "./static",
+ "./static.local",
+ "./tiny_mce",
+ "./static/webcit_icons"
};
+int ExitPipe[2];
+HashList *GZMimeBlackList = NULL; /* mimetypes which shouldn't be gzip compressed */
+
+void LoadMimeBlacklist(void)
+{
+ StrBuf *MimeBlackLine;
+ IOBuffer IOB;
+ eReadState state;
+
+ memset(&IOB, 0, sizeof(IOBuffer));
+ IOB.fd = open(file_etc_mimelist, O_RDONLY);
+
+ IOB.Buf = NewStrBuf();
+ MimeBlackLine = NewStrBuf();
+ GZMimeBlackList = NewHash(1, NULL);
+
+ do
+ {
+ state = StrBufChunkSipLine(MimeBlackLine, &IOB);
+
+ switch (state)
+ {
+ case eMustReadMore:
+ if (StrBuf_read_one_chunk_callback(IOB.fd, 0, &IOB) <= 0)
+ state = eReadFail;
+ break;
+ case eReadSuccess:
+ if ((StrLength(MimeBlackLine) > 1) &&
+ (*ChrPtr(MimeBlackLine) != '#'))
+ {
+ Put(GZMimeBlackList, SKEY(MimeBlackLine),
+ (void*) 1, reference_free_handler);
+ }
+ FlushStrBuf(MimeBlackLine);
+ break;
+ case eReadFail:
+ break;
+ case eBufferNotEmpty:
+ break;
+ }
+ }
+ while (state != eReadFail);
+
+ close(IOB.fd);
+
+ FreeStrBuf(&IOB.Buf);
+ FreeStrBuf(&MimeBlackLine);
+}
+
+void CheckGZipCompressionAllowed(const char *MimeType, long MLen)
+{
+ void *v;
+
+ if (WC->Hdr->HR.gzip_ok)
+ WC->Hdr->HR.gzip_ok = GetHash(GZMimeBlackList, MimeType, MLen, &v) == 0;
+}
+
void InitialiseSemaphores(void)
{
int i;
for (i=0; i<MAX_SEMAPHORES; ++i) {
pthread_mutex_init(&Critters[i], NULL);
}
+
+ if (pipe(ExitPipe))
+ {
+ syslog(LOG_WARNING, "Failed to open exit pipe: %d [%s]\n",
+ errno,
+ strerror(errno));
+
+ exit(-1);
+ }
}
/*
*/
void begin_critical_section(int which_one)
{
- /* lprintf(CTDL_DEBUG, "begin_critical_section(%d)\n", which_one); */
pthread_mutex_lock(&Critters[which_one]);
}
void ShutDownWebcit(void)
{
+
+ DeleteHash(&GZMimeBlackList);
free_zone_directory ();
icaltimezone_release_zone_tab ();
icalmemory_free_ring ();
ShutDownLibCitadel ();
shutdown_modules ();
-#ifdef HAVE_OPENSSL
- if (is_https) {
- shutdown_ssl();
- }
-#endif
}
/*
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 */
+ /* Each worker thread blocks on accept() while waiting for something to do. */
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);
- }
-
+ fd_set wset;
+ --num_threads_executing;
+ FD_ZERO(&wset);
+ FD_SET(msock, &wset);
+ FD_SET(ExitPipe[1], &wset);
+
+ select(msock + 1, NULL, &wset, NULL, NULL);
+ if (time_to_die)
+ break;
+
+ ssock = accept(msock, NULL, 0);
+ ++num_threads_executing;
+ if (ssock < 0) fail_this_transaction = 1;
} 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.
+ /* The first thread to get here will have to do the cleanup.
+ * Make sure it's really just one.
*/
begin_critical_section(S_SHUTDOWN);
if (msock == -1)
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");
+ syslog(LOG_DEBUG, "I'm master shutdown: tagging sessions to be killed.\n");
shutdown_sessions();
- lprintf(2, "master shutdown: waiting for others\n");
+ syslog(LOG_DEBUG, "master shutdown: waiting for others\n");
sleeeeeeeeeep(1); /* wait so some others might finish... */
- lprintf(2, "master shutdown: cleaning up sessions\n");
+ syslog(LOG_DEBUG, "master shutdown: cleaning up sessions\n");
do_housekeeping();
- lprintf(2, "master shutdown: cleaning up libical\n");
+ syslog(LOG_DEBUG, "master shutdown: cleaning up libical\n");
ShutDownWebcit();
- lprintf(2, "master shutdown exiting!.\n");
+ syslog(LOG_DEBUG, "master shutdown exiting.\n");
exit(0);
}
break;
}
if (ssock < 0 ) continue;
+ check_thread_pool_size();
+
+ /* Now do something. */
if (msock < 0) {
if (ssock > 0) close (ssock);
- lprintf(2, "inbetween.");
+ syslog(LOG_DEBUG, "in between.");
pthread_exit(NULL);
- } else { /* Got it? do some real work! */
+ } else {
+ /* Got it? do some real work! */
/* Set the SO_REUSEADDR socket option */
i = 1;
- setsockopt(ssock, SOL_SOCKET, SO_REUSEADDR,
- &i, sizeof(i));
+ setsockopt(ssock, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
/* If we are an HTTPS server, go crypto now. */
#ifdef HAVE_OPENSSL
int fdflags;
fdflags = fcntl(ssock, F_GETFL);
if (fdflags < 0)
- lprintf(1, "unable to get server socket flags! %s \n",
+ syslog(LOG_WARNING, "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",
+ syslog(LOG_WARNING, "unable to set server socket nonblocking flags! %s \n",
strerror(errno));
}
#endif
/* ...and close the socket. */
- if (Hdr.http_sock > 0)
+ if (Hdr.http_sock > 0) {
lingering_close(ssock);
+ }
http_detach_modules(&Hdr);
}
} while (!time_to_die);
http_destroy_modules(&Hdr);
- lprintf (1, "bye\n");
+ syslog(LOG_DEBUG, "Thread exiting.\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;
-}
/*
* Shut us down the regular way.
*/
pid_t current_child;
void graceful_shutdown_watcher(int signum) {
- lprintf (1, "bye; shutting down watcher.");
+ syslog(LOG_INFO, "Watcher thread exiting.\n");
+ write(ExitPipe[0], HKEY(" "));
kill(current_child, signum);
if (signum != SIGHUP)
exit(0);
}
-
-
/*
* Shut us down the regular way.
* signum is the signal we want to forward
FILE *FD;
int fd;
- lprintf (1, "WebCit is being shut down on signal %d.\n", signum);
+ syslog(LOG_INFO, "WebCit is being shut down on signal %d.\n", signum);
fd = msock;
msock = -1;
time_to_die = 1;
fflush (FD);
fclose (FD);
close(fd);
+ write(ExitPipe[0], HKEY(" "));
}
pid_t child = 0;
FILE *fp;
int do_restart = 0;
- int rv;
- FILE *rvfp = NULL;
current_child = 0;
* We don't just call close() because we don't want these fd's
* to be reused for other files.
*/
- rv = chdir("/");
+ chdir("/");
signal(SIGHUP, SIG_IGN);
signal(SIGINT, SIG_IGN);
setsid();
umask(0);
- rvfp = freopen("/dev/null", "r", stdin);
- rvfp = freopen("/dev/null", "w", stdout);
- rvfp = freopen("/dev/null", "w", stderr);
+ freopen("/dev/null", "r", stdin);
+ freopen("/dev/null", "w", stdout);
+ freopen("/dev/null", "w", stderr);
signal(SIGTERM, graceful_shutdown_watcher);
signal(SIGHUP, graceful_shutdown_watcher);
exit(WEXITSTATUS(status));
}
+
/*
* Spawn an additional worker thread into the pool.
*/
pthread_attr_t attr; /* Thread attributes */
int ret;
- lprintf(3, "Creating a new thread. Pool size is now %d\n", ++num_threads);
+ ++num_threads_existing;
+ ++num_threads_executing;
/* set attributes for the new thread */
pthread_attr_init(&attr);
* otherwise the MIME parser crashes on FreeBSD.
*/
if ((ret = pthread_attr_setstacksize(&attr, 1024 * 1024))) {
- lprintf(1, "pthread_attr_setstacksize: %s\n",
- strerror(ret));
+ syslog(LOG_WARNING, "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));
+ if (pthread_create(&SessThread, &attr, (void *(*)(void *)) worker_entry, NULL) != 0) {
+ syslog(LOG_WARNING, "Can't create thread: %s\n", strerror(errno));
}
/* free up the attributes */
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);
+ basedir=ETCDIR;
+ COMPUTE_DIRECTORY(etc_dir);
+ StripSlashes(etc_dir, 1);
+ snprintf(file_etc_mimelist,
+ sizeof file_etc_mimelist,
+ "%s/nogz-mimetypes.txt",
+ etc_dir);
/* we should go somewhere we can leave our coredump, if enabled... */
- lprintf(9, "Changing directory to %s\n", socket_dir);
+ syslog(LOG_INFO, "Changing directory to %s\n", socket_dir);
if (chdir(webcitdir) != 0) {
perror("chdir");
}
}
+
void drop_root(uid_t UID)
{
struct passwd pw, *pwp = NULL;
+#ifdef HAVE_GETPWUID_R
+ char pwbuf[SIZ];
+#endif
/*
* Now that we've bound the sockets, change to the Citadel user id and its
#ifdef HAVE_GETPWUID_R
#ifdef SOLARIS_GETPWUID
pwp = getpwuid_r(UID, &pw, pwbuf, sizeof(pwbuf));
-#else // SOLARIS_GETPWUID
+#else /* SOLARIS_GETPWUID */
getpwuid_r(UID, &pw, pwbuf, sizeof(pwbuf), &pwp);
-#endif // SOLARIS_GETPWUID
-#else // HAVE_GETPWUID_R
+#endif /* SOLARIS_GETPWUID */
+#else /* HAVE_GETPWUID_R */
pwp = NULL;
-#endif // HAVE_GETPWUID_R
+#endif /* HAVE_GETPWUID_R */
if (pwp == NULL)
- lprintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
+ syslog(LOG_CRIT, "WARNING: getpwuid(%d): %s\n"
"Group IDs will be incorrect.\n", UID,
strerror(errno));
else {
initgroups(pw.pw_name, pw.pw_gid);
if (setgid(pw.pw_gid))
- lprintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
+ syslog(LOG_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
strerror(errno));
}
- lprintf(CTDL_INFO, "Changing uid to %ld\n", (long)UID);
+ syslog(LOG_INFO, "Changing uid to %ld\n", (long)UID);
if (setuid(UID) != 0) {
- lprintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
+ syslog(LOG_CRIT, "setuid() failed: %s\n", strerror(errno));
}
#if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
prctl(PR_SET_DUMPABLE, 1);
/*
* print the actual stack frame.
*/
-void wc_backtrace(void)
+void wc_backtrace(long LogLevel)
{
#ifdef HAVE_BACKTRACE
void *stack_frames[50];
strings = backtrace_symbols(stack_frames, size);
for (i = 0; i < size; i++) {
if (strings != NULL)
- lprintf(1, "%s\n", strings[i]);
+ syslog(LogLevel, "%s\n", strings[i]);
else
- lprintf(1, "%p\n", stack_frames[i]);
+ syslog(LogLevel, "%p\n", stack_frames[i]);
}
free(strings);
#endif
projects / citadel.git / blobdiff