* waiting on the specified port for incoming HTTP connections. When a
* connection is established, it calls context_loop() from context_loop.c.
*
+ * Copyright (c) 1996-2008 by the citadel.org developers.
+ * This program is released under the terms of the GNU General Public License v3.
+ *
*/
-
#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 msock; /* master listening socket */
int is_https = 0; /* Nonzero if I am an HTTPS service */
int follow_xff = 0; /* Follow X-Forwarded-For: header */
-extern void *context_loop(int);
+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(int*);
extern void *housekeeping_loop(void);
extern pthread_mutex_t SessionListMutex;
extern pthread_key_t MyConKey;
-char *server_cookie = NULL;
-
+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 *ctdlhost = DEFAULT_HOST;
-char *ctdlport = DEFAULT_PORT;
-int setup_wizard = 0;
-char wizard_filename[PATH_MAX];
+char socket_dir[PATH_MAX]; /* where to talk to our citadel server */
+static const char editor_absolut_dir[PATH_MAX]=EDITORDIR; /* nailed to what configure gives us. */
+static char static_dir[PATH_MAX]; /* calculated on startup */
+static char static_local_dir[PATH_MAX]; /* calculated on startup */
+static 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 */
+char *ctdlhost = DEFAULT_HOST; /* our name */
+char *ctdlport = DEFAULT_PORT; /* our Port */
+int setup_wizard = 0; /* should we run the setup wizard? \todo */
+char wizard_filename[PATH_MAX]; /* where's the setup wizard? */
+int running_as_daemon = 0; /* should we deamonize on startup? */
+
+
+/*
* This is a generic function to set up a master socket for listening on
* a TCP port. The server shuts down if the bind fails.
+ *
+ * ip_addr IP address to bind
+ * port_number port number to bind
+ * queue_len number of incoming connections to allow in the queue
*/
int ig_tcp_server(char *ip_addr, int port_number, int queue_len)
{
if (port_number == 0) {
lprintf(1, "Cannot start: no port number specified.\n");
- exit(1);
+ exit(WC_EXIT_BIND);
}
sin.sin_port = htons((u_short) port_number);
s = socket(PF_INET, SOCK_STREAM, (getprotobyname("tcp")->p_proto));
if (s < 0) {
lprintf(1, "Can't create a socket: %s\n", strerror(errno));
- exit(errno);
+ exit(WC_EXIT_BIND);
}
/* Set some socket options that make sense. */
i = 1;
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
+ #ifndef __APPLE__
+ fcntl(s, F_SETFL, O_NONBLOCK); /* maide: this statement is incorrect
+ there should be a preceding F_GETFL
+ and a bitwise OR with the previous
+ fd flags */
+ #endif
+
if (bind(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
lprintf(1, "Can't bind: %s\n", strerror(errno));
- exit(errno);
+ exit(WC_EXIT_BIND);
}
if (listen(s, queue_len) < 0) {
lprintf(1, "Can't listen: %s\n", strerror(errno));
- exit(errno);
+ exit(WC_EXIT_BIND);
}
return (s);
}
+
/*
- * Read data from the client socket.
- * Return values are:
- * 1 Requested number of bytes has been read.
- * 0 Request timed out.
- * -1 Connection is broken, or other error.
+ * Create a Unix domain socket and listen on it
+ * sockpath - file name of the unix domain socket
+ * queue_len - Number of incoming connections to allow in the queue
*/
-int client_read_to(int sock, char *buf, int bytes, int timeout)
+int ig_uds_server(char *sockpath, int queue_len)
{
- int len, rlen;
- fd_set rfds;
- struct timeval tv;
- int retval;
-
-
-#ifdef HAVE_OPENSSL
- if (is_https) {
- return (client_read_ssl(buf, bytes, timeout));
+ struct sockaddr_un addr;
+ int s;
+ int i;
+ int actual_queue_len;
+
+ actual_queue_len = queue_len;
+ if (actual_queue_len < 5) actual_queue_len = 5;
+
+ i = unlink(sockpath);
+ if ((i != 0) && (errno != ENOENT)) {
+ lprintf(1, "webcit: can't unlink %s: %s\n",
+ sockpath, strerror(errno));
+ exit(WC_EXIT_BIND);
}
-#endif
- len = 0;
- while (len < bytes) {
- FD_ZERO(&rfds);
- FD_SET(sock, &rfds);
- tv.tv_sec = timeout;
- tv.tv_usec = 0;
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ safestrncpy(addr.sun_path, sockpath, sizeof addr.sun_path);
- retval = select((sock) + 1, &rfds, NULL, NULL, &tv);
- if (FD_ISSET(sock, &rfds) == 0) {
- return (0);
- }
+ s = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (s < 0) {
+ lprintf(1, "webcit: Can't create a socket: %s\n",
+ strerror(errno));
+ exit(WC_EXIT_BIND);
+ }
- rlen = read(sock, &buf[len], bytes - len);
+ if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+ lprintf(1, "webcit: Can't bind: %s\n",
+ strerror(errno));
+ exit(WC_EXIT_BIND);
+ }
- if (rlen < 1) {
- lprintf(2, "client_read() failed: %s\n",
- strerror(errno));
- return (-1);
- }
- len = len + rlen;
+ if (listen(s, actual_queue_len) < 0) {
+ lprintf(1, "webcit: Can't listen: %s\n",
+ strerror(errno));
+ exit(WC_EXIT_BIND);
}
-#ifdef HTTP_TRACING
- write(2, "\033[32m", 5);
- write(2, buf, bytes);
- write(2, "\033[30m", 5);
-#endif
- return (1);
+ chmod(sockpath, 0777);
+ return(s);
}
-ssize_t client_write(const void *buf, size_t count)
+
+
+/*
+ * Read data from the client socket.
+ *
+ * sock socket fd to read from
+ * buf buffer to read into
+ * bytes number of bytes to read
+ * timeout Number of seconds to wait before timing out
+ *
+ * Possible return values:
+ * 1 Requested number of bytes has been read.
+ * 0 Request timed out.
+ * -1 Connection is broken, or other error.
+ */
+int client_read_to(int *sock, StrBuf *Target, StrBuf *Buf, int bytes, int timeout)
{
+ const char *Error;
+ int retval = 0;
- if (WC->burst != NULL) {
- WC->burst =
- realloc(WC->burst, (WC->burst_len + count + 2));
- memcpy(&WC->burst[WC->burst_len], buf, count);
- WC->burst_len += count;
- return (count);
- }
#ifdef HAVE_OPENSSL
if (is_https) {
- client_write_ssl((char *) buf, count);
- return (count);
+ while ((StrLength(Buf) + StrLength(Target) < bytes) &&
+ (retval >= 0))
+ retval = client_read_sslbuffer(Buf, timeout);
+ if (retval >= 0) {
+ StrBufAppendBuf(Target, Buf, 0); /// todo: Buf > bytes?
+#ifdef HTTP_TRACING
+ write(2, "\033[32m", 5);
+ write(2, buf, bytes);
+ write(2, "\033[30m", 5);
+#endif
+ return 1;
+ }
+ else {
+ lprintf(2, "client_read_ssl() failed\n");
+ return -1;
+ }
}
#endif
+
+ if (StrLength(Buf) > 0) {//// todo: what if Buf > bytes?
+ StrBufAppendBuf(Target, Buf, 0);
+ }
+ retval = StrBufReadBLOB(Target,
+ sock,
+ (StrLength(Target) > 0),
+ bytes - StrLength(Target),
+ &Error);
+ if (retval < 0) {
+ lprintf(2, "client_read() failed: %s\n",
+ Error);
+ return retval;
+ }
+
#ifdef HTTP_TRACING
- write(2, "\033[34m", 5);
- write(2, buf, count);
+ write(2, "\033[32m", 5);
+ write(2, buf, bytes);
write(2, "\033[30m", 5);
#endif
- return (write(WC->http_sock, buf, count));
+ return 1;
}
+/*
+ * Begin buffering HTTP output so we can transmit it all in one write operation later.
+ */
void begin_burst(void)
{
- if (WC->burst != NULL) {
- free(WC->burst);
- WC->burst = NULL;
- }
- WC->burst_len = 0;
- WC->burst = malloc(SIZ);
+ if (WC->WBuf == NULL)
+ WC->WBuf = NewStrBufPlain(NULL, 32768);
}
/*
- * compress_gzip() uses the same calling syntax as compress2(), but it
- * creates a stream compatible with HTTP "Content-encoding: gzip"
+ * Finish buffering HTTP output. [Compress using zlib and] output with a Content-Length: header.
*/
-#ifdef HAVE_ZLIB
-#define DEF_MEM_LEVEL 8
-#define OS_CODE 0x03 /* unix */
-int ZEXPORT compress_gzip(Bytef * dest, uLongf * destLen,
- const Bytef * source, uLong sourceLen, int level)
-{
- const int gz_magic[2] = { 0x1f, 0x8b }; /* gzip magic header */
-
- /* write gzip header */
- sprintf((char *) dest, "%c%c%c%c%c%c%c%c%c%c",
- gz_magic[0], gz_magic[1], Z_DEFLATED,
- 0 /*flags */ , 0, 0, 0, 0 /*time */ , 0 /*xflags */ ,
- OS_CODE);
-
- /* normal deflate */
- z_stream stream;
- int err;
- stream.next_in = (Bytef *) source;
- stream.avail_in = (uInt) sourceLen;
- stream.next_out = dest + 10L; // after header
- stream.avail_out = (uInt) * destLen;
- if ((uLong) stream.avail_out != *destLen)
- return Z_BUF_ERROR;
-
- stream.zalloc = (alloc_func) 0;
- stream.zfree = (free_func) 0;
- stream.opaque = (voidpf) 0;
-
- err = deflateInit2(&stream, level, Z_DEFLATED, -MAX_WBITS,
- DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
- if (err != Z_OK)
- return err;
-
- err = deflate(&stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- deflateEnd(&stream);
- return err == Z_OK ? Z_BUF_ERROR : err;
- }
- *destLen = stream.total_out + 10L;
-
- /* write CRC and Length */
- uLong crc = crc32(0L, source, sourceLen);
- int n;
- for (n = 0; n < 4; ++n, ++*destLen) {
- dest[*destLen] = (int) (crc & 0xff);
- crc >>= 8;
- }
- uLong len = stream.total_in;
- for (n = 0; n < 4; ++n, ++*destLen) {
- dest[*destLen] = (int) (len & 0xff);
- len >>= 8;
- }
- err = deflateEnd(&stream);
- return err;
-}
-#endif
-
-void end_burst(void)
+long end_burst(void)
{
- size_t the_len;
- char *the_data;
+ struct wcsession *WCC = WC;
+ const char *ptr, *eptr;
+ long count;
+ ssize_t res;
+ fd_set wset;
+ int fdflags;
- if (WC->burst == NULL)
- return;
+#ifdef HAVE_ZLIB
+ /* Perform gzip compression, if enabled and supported by client */
+ if (!DisableGzip && (WCC->gzip_ok) && CompressBuffer(WCC->WBuf))
+ {
+ hprintf("Content-encoding: gzip\r\n");
+ }
+#endif /* HAVE_ZLIB */
- the_len = WC->burst_len;
- the_data = WC->burst;
+ hprintf("Content-length: %d\r\n\r\n", StrLength(WCC->WBuf));
- WC->burst_len = 0;
- WC->burst = NULL;
+ ptr = ChrPtr(WCC->HBuf);
+ count = StrLength(WCC->HBuf);
+ eptr = ptr + count;
-#ifdef HAVE_ZLIB
- /* Handle gzip compression */
- if (WC->gzip_ok) {
- char *compressed_data = NULL;
- uLongf compressed_len;
-
- compressed_len = (uLongf) ((the_len * 101) / 100) + 100;
- compressed_data = malloc(compressed_len);
-
- if (compress_gzip((Bytef *) compressed_data,
- &compressed_len,
- (Bytef *) the_data,
- (uLongf) the_len, Z_BEST_SPEED) == Z_OK) {
- wprintf("Content-encoding: gzip\r\n");
- free(the_data);
- the_data = compressed_data;
- the_len = compressed_len;
- } else {
- free(compressed_data);
- }
+#ifdef HAVE_OPENSSL
+ if (is_https) {
+ client_write_ssl(WCC->HBuf);
+ client_write_ssl(WCC->WBuf);
+ return (count);
}
-#endif /* HAVE_ZLIB */
+#endif
+
+
+#ifdef HTTP_TRACING
+
+ write(2, "\033[34m", 5);
+ write(2, ptr, StrLength(WCC->WBuf));
+ write(2, "\033[30m", 5);
+#endif
+ fdflags = fcntl(WC->http_sock, F_GETFL);
+
+ while (ptr < eptr) {
+ if ((fdflags & O_NONBLOCK) == O_NONBLOCK) {
+ FD_ZERO(&wset);
+ FD_SET(WCC->http_sock, &wset);
+ if (select(WCC->http_sock + 1, NULL, &wset, NULL, NULL) == -1) {
+ lprintf(2, "client_write: Socket select failed (%s)\n", strerror(errno));
+ return -1;
+ }
+ }
+
+ if ((res = write(WCC->http_sock,
+ ptr,
+ count)) == -1) {
+ lprintf(2, "client_write: Socket write failed (%s)\n", strerror(errno));
+ wc_backtrace();
+ return res;
+ }
+ count -= res;
+ ptr += res;
+ }
+
+ ptr = ChrPtr(WCC->WBuf);
+ count = StrLength(WCC->WBuf);
+ eptr = ptr + count;
- wprintf("Content-length: %d\r\n\r\n", the_len);
- client_write(the_data, the_len);
- free(the_data);
- return;
+#ifdef HTTP_TRACING
+
+ write(2, "\033[34m", 5);
+ write(2, ptr, StrLength(WCC->WBuf));
+ write(2, "\033[30m", 5);
+#endif
+
+ while (ptr < eptr) {
+ if ((fdflags & O_NONBLOCK) == O_NONBLOCK) {
+ FD_ZERO(&wset);
+ FD_SET(WCC->http_sock, &wset);
+ if (select(WCC->http_sock + 1, NULL, &wset, NULL, NULL) == -1) {
+ lprintf(2, "client_write: Socket select failed (%s)\n", strerror(errno));
+ return -1;
+ }
+ }
+
+ if ((res = write(WCC->http_sock,
+ ptr,
+ count)) == -1) {
+ lprintf(2, "client_write: Socket write failed (%s)\n", strerror(errno));
+ wc_backtrace();
+ return res;
+ }
+ count -= res;
+ ptr += res;
+ }
+
+ return StrLength(WCC->WBuf);
}
* Read data from the client socket with default timeout.
* (This is implemented in terms of client_read_to() and could be
* justifiably moved out of sysdep.c)
+ *
+ * sock the socket fd to read from
+ * buf the buffer to write to
+ * bytes Number of bytes to read
*/
-int client_read(int sock, char *buf, int bytes)
+int client_read(int *sock, StrBuf *Target, StrBuf *buf, int bytes)
{
- return (client_read_to(sock, buf, bytes, SLEEPING));
+ return (client_read_to(sock, Target, buf, bytes, SLEEPING));
}
/*
- * client_getln() ... Get a LF-terminated line of text from the client.
+ * Get a LF-terminated line of text from the client.
* (This is implemented in terms of client_read() and could be
* justifiably moved out of sysdep.c)
+ *
+ * sock socket fd to get client line from
+ * buf buffer to write read data to
+ * bufsiz how many bytes to read
+ *
+ * returns the number of bytes read
*/
-int client_getln(int sock, char *buf, int bufsiz)
+/////int client_getln(int *sock, char *buf, int bufsiz)
+/////{
+///// int i, retval;
+/////
+///// /* Read one character at a time.*/
+///// for (i = 0; *sock > 0; i++) {
+///// retval = client_read(sock, &buf[i], 1);
+///// if (retval < 0)
+///// return retval;
+///// if (retval != 1 || buf[i] == '\n' || i == (bufsiz-1))
+///// break;
+///// if ( (!isspace(buf[i])) && (!isprint(buf[i])) ) {
+///// /* Non printable character recieved from client */
+///// return(-1);
+///// }
+///// }
+/////
+///// /* If we got a long line, discard characters until the newline. */
+///// if (i == (bufsiz-1))
+///// while (buf[i] != '\n' && retval == 1)
+///// retval = client_read(sock, &buf[i], 1);
+/////
+///// /*
+///// * Strip any trailing non-printable characters.
+///// */
+///// buf[i] = 0;
+///// while ((i > 0) && (!isprint(buf[i - 1]))) {
+///// buf[--i] = 0;
+///// }
+///// return (retval);
+/////}
+
+/*
+ * 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);
+}
+
+
+int ClientGetLine(int *sock, StrBuf *Target, StrBuf *CLineBuf)
{
- int i, retval;
+ const char *Error, *pch, *pchs;
+ int rlen, len, retval = 0;
- /* Read one character at a time.
- */
- for (i = 0;; i++) {
- retval = client_read(sock, &buf[i], 1);
- if (retval != 1 || buf[i] == '\n' || i == (bufsiz-1))
- break;
- }
+ if (is_https) {
+ int ntries = 0;
+ if (StrLength(CLineBuf) > 0) {
+ pchs = ChrPtr(CLineBuf);
+ pch = strchr(pchs, '\n');
+ if (pch != NULL) {
+ rlen = 0;
+ len = pch - pchs;
+ if (len > 0 && (*(pch - 1) == '\r') )
+ rlen ++;
+ StrBufSub(Target, CLineBuf, 0, len - rlen);
+ StrBufCutLeft(CLineBuf, len + 1);
+ return len - rlen;
+ }
+ }
- /* If we got a long line, discard characters until the newline.
- */
- if (i == (bufsiz-1))
- while (buf[i] != '\n' && retval == 1)
- retval = client_read(sock, &buf[i], 1);
+ while (retval == 0) {
+ pch = NULL;
+ pchs = ChrPtr(CLineBuf);
+ if (*pchs != '\0')
+ pch = strchr(pchs, '\n');
+ if (pch == NULL) {
+ retval = client_read_sslbuffer(CLineBuf, SLEEPING);
+ pchs = ChrPtr(CLineBuf);
+ pch = strchr(pchs, '\n');
+ }
+ if (retval == 0) {
+ sleeeeeeeeeep(1);
+ ntries ++;
+ }
+ if (ntries > 10)
+ return 0;
+ }
+ if ((retval > 0) && (pch != NULL)) {
+ rlen = 0;
+ len = pch - pchs;
+ if (len > 0 && (*(pch - 1) == '\r') )
+ rlen ++;
+ StrBufSub(Target, CLineBuf, 0, len - rlen);
+ StrBufCutLeft(CLineBuf, len + 1);
+ return len - rlen;
- /*
- * Strip any trailing non-printable characters.
- */
- buf[i] = 0;
- while ((strlen(buf) > 0) && (!isprint(buf[strlen(buf) - 1]))) {
- buf[strlen(buf) - 1] = 0;
+ }
+ else
+ return -1;
}
- return (retval);
+ else
+ return StrBufTCP_read_buffered_line(Target,
+ CLineBuf,
+ sock,
+ 5,
+ 1,
+ &Error);
}
+
/*
- * Start running as a daemon. Only close stdio if do_close_stdio is set.
+ * Shut us down the regular way.
+ * signum is the signal we want to forward
*/
-void start_daemon(int do_close_stdio)
+pid_t current_child;
+void graceful_shutdown(int signum) {
+// kill(current_child, signum);
+ char wd[SIZ];
+ FILE *FD;
+ int fd;
+ getcwd(wd, SIZ);
+ lprintf (1, "bye going down gracefull.[%d][%s]\n", signum, wd);
+ 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)
{
- if (do_close_stdio) {
- /* close(0); */
- close(1);
- close(2);
- }
+ int status = 0;
+ pid_t child = 0;
+ FILE *fp;
+ int do_restart = 0;
+
+ 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.
+ */
+ chdir("/");
+
signal(SIGHUP, SIG_IGN);
signal(SIGINT, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
- if (fork() != 0)
+
+ child = fork();
+ if (child != 0) {
exit(0);
+ }
+
+ setsid();
+ umask(0);
+ 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);
+
+ do {
+ current_child = fork();
+
+
+ if (current_child < 0) {
+ perror("fork");
+ ShutDownLibCitadel ();
+ exit(errno);
+ }
+
+ else if (current_child == 0) { // child process
+// signal(SIGTERM, graceful_shutdown);
+ signal(SIGHUP, graceful_shutdown);
+
+ return; /* continue starting webcit. */
+ }
+
+ else { // watcher process
+// signal(SIGTERM, SIG_IGN);
+// signal(SIGHUP, SIG_IGN);
+ 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_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
- /* Our per-thread stacks need to be bigger than the default size, otherwise
+ /*
+ * Our per-thread stacks need to be bigger than the default size, otherwise
* the MIME parser crashes on FreeBSD, and the IMAP service crashes on
* 64-bit Linux.
*/
pthread_attr_destroy(&attr);
}
+//#define DBG_PRINNT_HOOKS_AT_START
+#ifdef DBG_PRINNT_HOOKS_AT_START
+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 void LoadZoneFiles(void);
+StrBuf *csslocal = NULL;
/*
* Here's where it all begins.
*/
int main(int argc, char **argv)
{
- pthread_t SessThread; /* Thread descriptor */
- pthread_attr_t attr; /* Thread attributes */
- int a, i; /* General-purpose variables */
- int port = PORT_NUM; /* Port to listen on */
+ pthread_t SessThread; /* Thread descriptor */
+ pthread_attr_t attr; /* Thread attributes */
+ int a, i; /* General-purpose variables */
char tracefile[PATH_MAX];
- char ip_addr[256];
- char *webcitdir = WEBCITDIR;
+ char ip_addr[256]="0.0.0.0";
+ char dirbuffer[PATH_MAX]="";
+ int relh=0;
+ int home=0;
+ int home_specified=0;
+ char relhome[PATH_MAX]="";
+ char webcitdir[PATH_MAX] = DATADIR;
+ char *pidfile = NULL;
+ char *hdir;
+ const char *basedir;
+#ifdef ENABLE_NLS
char *locale = NULL;
char *mo = NULL;
+#endif /* ENABLE_NLS */
+ char uds_listen_path[PATH_MAX]; /* listen on a unix domain socket? */
+
+ HandlerHash = NewHash(1, NULL);
+ PreferenceHooks = NewHash(1, NULL);
+ WirelessTemplateCache = NewHash(1, NULL);
+ WirelessLocalTemplateCache = NewHash(1, NULL);
+ LocalTemplateCache = NewHash(1, NULL);
+ TemplateCache = NewHash(1, NULL);
+ GlobalNS = NewHash(1, NULL);
+ Iterators = NewHash(1, NULL);
+ Conditionals = NewHash(1, NULL);
+ MsgHeaderHandler = NewHash(1, NULL);
+ MimeRenderHandler = NewHash(1, NULL);
+ SortHash = NewHash(1, NULL);
+
+ LoadZoneFiles();
+
+#ifdef DBG_PRINNT_HOOKS_AT_START
+ dbg_PrintHash(HandlerHash, nix, NULL);
+#endif
+
+ /* Ensure that we are linked to the correct version of libcitadel */
+ if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
+ fprintf(stderr, " You are running libcitadel version %d.%02d\n",
+ (libcitadel_version_number() / 100), (libcitadel_version_number() % 100));
+ fprintf(stderr, "WebCit was compiled against version %d.%02d\n",
+ (LIBCITADEL_VERSION_NUMBER / 100), (LIBCITADEL_VERSION_NUMBER % 100));
+ return(1);
+ }
+
+ strcpy(uds_listen_path, "");
/* Parse command line */
#ifdef HAVE_OPENSSL
- while ((a = getopt(argc, argv, "h:i:p:t:x:cfs")) != EOF)
+ while ((a = getopt(argc, argv, "h:i:p:t:T:x:dD:cfsZ")) != EOF)
#else
- while ((a = getopt(argc, argv, "h:i:p:t:x:cf")) != EOF)
+ while ((a = getopt(argc, argv, "h:i:p:t:T:x:dD:cfZ")) != EOF)
#endif
switch (a) {
case 'h':
- webcitdir = strdup(optarg);
+ hdir = strdup(optarg);
+ relh=hdir[0]!='/';
+ if (!relh) safestrncpy(webcitdir, hdir,
+ sizeof webcitdir);
+ else
+ safestrncpy(relhome, relhome,
+ sizeof relhome);
+ /* free(hdir); TODO: SHOULD WE DO THIS? */
+ home_specified = 1;
+ home=1;
+ break;
+ case 'd':
+ running_as_daemon = 1;
+ break;
+ case 'D':
+ pidfile = strdup(optarg);
+ running_as_daemon = 1;
break;
case 'i':
safestrncpy(ip_addr, optarg, sizeof ip_addr);
break;
case 'p':
- port = atoi(optarg);
+ http_port = atoi(optarg);
+ if (http_port == 0) {
+ safestrncpy(uds_listen_path, optarg, sizeof uds_listen_path);
+ }
break;
case 't':
safestrncpy(tracefile, optarg, sizeof tracefile);
freopen(tracefile, "w", stderr);
freopen(tracefile, "r", stdin);
break;
+ case 'T':
+ LoadTemplates = atoi(optarg);
+ break;
+ case 'Z':
+ DisableGzip = 1;
+ break;
case 'x':
verbosity = atoi(optarg);
break;
is_https = 1;
break;
default:
- fprintf(stderr, "usage: webserver "
+ fprintf(stderr, "usage: webcit "
"[-i ip_addr] [-p http_port] "
"[-t tracefile] [-c] [-f] "
+ "[-T Templatedebuglevel] "
+ "[-d] [-Z] "
#ifdef HAVE_OPENSSL
"[-s] "
#endif
if (++optind < argc)
ctdlport = argv[optind];
}
+
+ /* daemonize, if we were asked to */
+ if (running_as_daemon) {
+ start_daemon(pidfile);
+ }
+ else {
+/// signal(SIGTERM, graceful_shutdown);
+ signal(SIGHUP, graceful_shutdown);
+ }
+
/* Tell 'em who's in da house */
- lprintf(1, SERVER "\n");
- lprintf(1, "Copyright (C) 1996-2005 by the Citadel development team.\n"
+ lprintf(1, PACKAGE_STRING "\n");
+ lprintf(1, "Copyright (C) 1996-2008 by the Citadel development team.\n"
"This software is distributed under the terms of the "
"GNU General Public License.\n\n"
);
- lprintf(9, "Changing directory to %s\n", webcitdir);
- if (chdir(webcitdir) != 0) {
- perror("chdir");
- }
/* initialize the International Bright Young Thing */
#ifdef ENABLE_NLS
+ initialize_locales();
+
locale = setlocale(LC_ALL, "");
mo = malloc(strlen(webcitdir) + 20);
- sprintf(mo, "%s/locale", webcitdir);
- lprintf(9, "Message catalog directory: %s\n",
- bindtextdomain("webcit", mo)
- );
+ lprintf(9, "Message catalog directory: %s\n", bindtextdomain("webcit", LOCALEDIR"/locale"));
free(mo);
- lprintf(9, "Text domain: %s\n",
- textdomain("webcit")
- );
+ lprintf(9, "Text domain: %s\n", textdomain("webcit"));
+ lprintf(9, "Text domain Charset: %s\n", bind_textdomain_codeset("webcit","UTF8"));
+ preset_locale();
#endif
+
+ /* 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);
+
+ 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");
+ }
+ LoadIconDir(static_icon_dir);
+
+ initialise_modules();
+ initialize_viewdefs();
+ initialize_axdefs();
+
+ InitTemplateCache();
+
+ if (!access("static.local/webcit.css", R_OK)) {
+ csslocal = NewStrBufPlain(HKEY("<link href=\"static.local/webcit.css\" rel=\"stylesheet\" type=\"text/css\">"));
+ }
+
+ /* Tell libical to return an error instead of aborting if it sees badly formed iCalendar data. */
+ icalerror_errors_are_fatal = 0;
+
+ /* Use our own prefix on tzid's generated from system tzdata */
+ icaltimezone_set_tzid_prefix("/citadel.org/");
+
/*
* Set up a place to put thread-specific data.
* We only need a single pointer per thread - it points to the
if (pthread_key_create(&MyConKey, NULL) != 0) {
lprintf(1, "Can't create TSD key: %s\n", strerror(errno));
}
+ InitialiseSemaphores ();
/*
* Set up a place to put thread-specific SSL data.
* There is no need to check for errors, because ig_tcp_server()
* exits if it doesn't succeed.
*/
- lprintf(2, "Attempting to bind to port %d...\n", port);
- msock = ig_tcp_server(ip_addr, port, LISTEN_QUEUE_LENGTH);
+
+ if (!IsEmptyStr(uds_listen_path)) {
+ lprintf(2, "Attempting to create listener socket at %s...\n", uds_listen_path);
+ msock = ig_uds_server(uds_listen_path, LISTEN_QUEUE_LENGTH);
+ }
+ else {
+ lprintf(2, "Attempting to bind to port %d...\n", http_port);
+ msock = ig_tcp_server(ip_addr, http_port, LISTEN_QUEUE_LENGTH);
+ }
+
lprintf(2, "Listening on socket %d\n", msock);
signal(SIGPIPE, SIG_IGN);
/* now the original thread becomes another worker */
worker_entry();
+ ShutDownLibCitadel ();
+ DeleteHash(&HandlerHash);
+ DeleteHash(&PreferenceHooks);
return 0;
}
+void ShutDownWebcit(void)
+{
+ DeleteHash(&ZoneHash);
+ free_zone_directory ();
+ icaltimezone_release_zone_tab ();
+ icalmemory_free_ring ();
+ ShutDownLibCitadel ();
+ DeleteHash(&HandlerHash);
+ DeleteHash(&PreferenceHooks);
+ DeleteHash(&GlobalNS);
+ DeleteHash(&WirelessTemplateCache);
+ DeleteHash(&WirelessLocalTemplateCache);
+ DeleteHash(&TemplateCache);
+ DeleteHash(&LocalTemplateCache);
+ DeleteHash(&Iterators);
+ DeleteHash(&MimeRenderHandler);
+ DeleteHash(&Conditionals);
+ DeleteHash(&MsgHeaderHandler);
+ DeleteHash(&SortHash);
+#ifdef ENABLE_NLS
+ ShutdownLocale();
+#endif
+#ifdef HAVE_OPENSSL
+ if (is_https) {
+ shutdown_ssl();
+ }
+#endif
+}
+
/*
* Entry point for worker threads
*/
{
int ssock;
int i = 0;
- int time_to_die = 0;
int fail_this_transaction = 0;
+ int ret;
+ struct timeval tv;
+ fd_set readset, tempset;
+
+ 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 = accept(msock, NULL, 0);
- if (ssock < 0) {
- lprintf(2, "accept() failed: %s\n",
- strerror(errno));
- } else {
+ 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.
+ 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,
#endif
if (fail_this_transaction == 0) {
+
/* Perform an HTTP transaction... */
- context_loop(ssock);
+ context_loop(&ssock);
+
+ /* Shut down SSL/TLS if required... */
+#ifdef HAVE_OPENSSL
+ if (is_https) {
+ endtls();
+ }
+#endif
+
/* ...and close the socket. */
- lingering_close(ssock);
+ if (ssock > 0)
+ lingering_close(ssock);
}
}
} while (!time_to_die);
+ 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;
}
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
+}
+