/*
* $Id$
- */
-/**
- * \defgroup Webserver This contains a simple multithreaded TCP server manager. It sits around
+ *
+ * This contains a simple multithreaded TCP server manager. It sits around
* waiting on the specified port for incoming HTTP connections. When a
* connection is established, it calls context_loop() from context_loop.c.
- * \ingroup WebcitHttpServer
+ *
*/
-/*@{*/
#include "webcit.h"
#include "webserver.h"
int vsnprintf(char *buf, size_t max, const char *fmt, va_list argp);
#endif
-int verbosity = 9; /**< Logging level */
-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 */
-int home_specified = 0; /**< did the user specify a homedir? */
-int time_to_die = 0; /**< shold we shut down? */
+int verbosity = 9; /* Logging level */
+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 */
+int home_specified = 0; /* did the user specify a homedir? */
+int time_to_die = 0; /* Nonzero if server is shutting down */
extern void *context_loop(int);
extern void *housekeeping_loop(void);
extern pthread_mutex_t SessionListMutex;
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 */
-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 */
-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 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 */
+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 */
};
-/**
+/*
* 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" /** the JS editor */
+ "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? */
+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? */
-/**
- * \brief This is a generic function to set up a master socket for listening on
+/*
+ * 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.
- * \param ip_addr ip to bind to
- * \param port_number the port to bind to
- * \param queue_len the size of the input queue ????
+ *
+ * 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)
{
lprintf(1, "Can't create a socket: %s\n", strerror(errno));
exit(WC_EXIT_BIND);
}
- /** Set some socket options that make sense. */
+ /* Set some socket options that make sense. */
i = 1;
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
+ fcntl(s, F_SETFL, O_NONBLOCK);/// TODO
+
if (bind(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
lprintf(1, "Can't bind: %s\n", strerror(errno));
exit(WC_EXIT_BIND);
-/**
+/*
* \brief Create a Unix domain socket and listen on it
* \param sockpath file name of the unix domain socket
- * \param queue_len queue size of the kernel fifo????
+ * \param queue_len Number of incoming connections to allow in the queue
*/
int ig_uds_server(char *sockpath, int queue_len)
{
i = unlink(sockpath);
if (i != 0) if (errno != ENOENT) {
- lprintf(1, "citserver: can't unlink %s: %s\n",
+ lprintf(1, "webserver: can't unlink %s: %s\n",
sockpath, strerror(errno));
exit(WC_EXIT_BIND);
}
s = socket(AF_UNIX, SOCK_STREAM, 0);
if (s < 0) {
- lprintf(1, "citserver: Can't create a socket: %s\n",
+ lprintf(1, "webserver: Can't create a socket: %s\n",
strerror(errno));
exit(WC_EXIT_BIND);
}
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
- lprintf(1, "citserver: Can't bind: %s\n",
+ lprintf(1, "webserver: Can't bind: %s\n",
strerror(errno));
exit(WC_EXIT_BIND);
}
if (listen(s, actual_queue_len) < 0) {
- lprintf(1, "citserver: Can't listen: %s\n",
+ lprintf(1, "webserver: Can't listen: %s\n",
strerror(errno));
exit(WC_EXIT_BIND);
}
-/**
+/*
* \brief Read data from the client socket.
- * \param sock socket fd to read from ???
+ * \param sock socket fd to read from
* \param buf buffer to read into
- * \param bytes how large is the read buffer?
- * \param timeout how long should we wait for input?
+ * \param bytes number of bytes to read
+ * \param timeout Number of seconds to wait before timing out
* \return values are\
* 1 Requested number of bytes has been read.\
* 0 Request timed out.\
return (1);
}
-/**
+/*
* \brief write data to the client
* \param buf data to write to the client
* \param count size of buffer
return (write(WC->http_sock, buf, count));
}
-/**
- * \brief what burst???
+/*
+ * \brief Begin buffering HTTP output so we can transmit it all in one write operation later.
*/
void begin_burst(void)
{
}
-/**
+/*
* \brief uses the same calling syntax as compress2(), but it
* creates a stream compatible with HTTP "Content-encoding: gzip"
*/
#ifdef HAVE_ZLIB
-#define DEF_MEM_LEVEL 8 /**< memlevel??? */
-#define OS_CODE 0x03 /**< unix */
-int ZEXPORT compress_gzip(Bytef * dest, /**< compressed buffer*/
- uLongf * destLen, /**< length of the compresed data */
- const Bytef * source, /**< source to encode */
- uLong sourceLen, /**< length of the source to encode */
- int level) /**< what level??? */
+#define DEF_MEM_LEVEL 8 /*< memlevel??? */
+#define OS_CODE 0x03 /*< unix */
+int ZEXPORT compress_gzip(Bytef * dest, /*< compressed buffer*/
+ size_t * destLen, /*< length of the compresed data */
+ const Bytef * source, /*< source to encode */
+ uLong sourceLen, /*< length of source to encode */
+ int level) /*< compression level */
{
- const int gz_magic[2] = { 0x1f, 0x8b }; /** gzip magic header */
+ 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);
+ /* write gzip header */
+ snprintf((char *) dest, *destLen,
+ "%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;
}
#endif
-/**
- * \brief what burst???
+/*
+ * \brief Finish buffering HTTP output. [Compress using zlib and] output with a Content-Length: header.
*/
void end_burst(void)
{
WC->burst = NULL;
#ifdef HAVE_ZLIB
- /* Handle gzip compression */
+ /* Perform gzip compression, if enabled and supported by client */
if (WC->gzip_ok) {
char *compressed_data = NULL;
- uLongf compressed_len;
+ size_t compressed_len;
- compressed_len = (uLongf) ((the_len * 101) / 100) + 100;
+ compressed_len = ((the_len * 101) / 100) + 100;
compressed_data = malloc(compressed_len);
if (compress_gzip((Bytef *) compressed_data,
free(compressed_data);
}
}
-#endif /* HAVE_ZLIB */
+#endif /* HAVE_ZLIB */
wprintf("Content-length: %d\r\n\r\n", the_len);
client_write(the_data, the_len);
-/**
+/*
* \brief 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)
- * \param sock the socket fd to read from???
+ * \param sock the socket fd to read from
* \param buf the buffer to write to
- * \param bytes how large is the buffer
+ * \param bytes Number of bytes to read
*/
int client_read(int sock, char *buf, int bytes)
{
}
-/**
+/*
* \brief 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)
- * \param sock socket fd to get client line from???
+ * \param sock socket fd to get client line from
* \param buf buffer to write read data to
* \param bufsiz how many bytes to read
- * \return numer of bytes read???
+ * \return number of bytes read???
*/
int client_getln(int sock, char *buf, int bufsiz)
{
int i, retval;
- /** Read one character at a time.*/
+ /* 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 ( (!isspace(buf[i])) && (!isprint(buf[i])) ) {
- /** Non printable character recieved from client */
+ /* Non printable character recieved from client */
return(-1);
}
}
- /** If we got a long line, discard characters until the newline. */
+ /* 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;
return (retval);
}
-/**
+/*
* \brief shut us down the regular way.
* param signum the signal we want to forward
*/
void graceful_shutdown_watcher(int signum) {
lprintf (1, "bye; shutting down watcher.");
kill(current_child, signum);
- exit(0);
+ if (signum != SIGHUP)
+ exit(0);
}
-/**
+/*
* \brief shut us down the regular way.
* param signum the signal we want to forward
*/
pid_t current_child;
void graceful_shutdown(int signum) {
// kill(current_child, signum);
- lprintf (1, "bye going down gracefull.");
+ 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;
- exit(0);
+ FD=fdopen(fd, "a+");
+ fflush (FD);
+ fclose (FD);
+ close(fd);
}
-/**
+/*
* \brief Start running as a daemon.
*
* param do_close_stdio Only close stdio if set.
freopen("/dev/null", "w", stdout);
freopen("/dev/null", "w", stderr);
signal(SIGTERM, graceful_shutdown_watcher);
+ signal(SIGHUP, graceful_shutdown_watcher);
do {
current_child = fork();
exit(errno);
}
- else if (current_child == 0) {
- signal(SIGTERM, graceful_shutdown);
+ else if (current_child == 0) { // child process
+// signal(SIGTERM, graceful_shutdown);
+ signal(SIGHUP, graceful_shutdown);
+
return; /* continue starting webcit. */
}
- else {
- signal(SIGTERM, SIG_IGN);
+ 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", current_child);
+ fprintf(fp, "%d\n", getpid());
fclose(fp);
}
}
exit(WEXITSTATUS(status));
}
-/**
+/*
* \brief Spawn an additional worker thread into the pool.
*/
void spawn_another_worker_thread()
{
- pthread_t SessThread; /**< Thread descriptor */
- pthread_attr_t attr; /**< Thread attributes */
+ pthread_t SessThread; /*< Thread descriptor */
+ pthread_attr_t attr; /*< Thread attributes */
int ret;
lprintf(3, "Creating a new thread\n");
- /** set attributes for the new thread */
+ /* 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, and the IMAP service crashes on
* 64-bit Linux.
pthread_attr_destroy(&attr);
}
- /** now create the thread */
+ /* 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 */
+ /* free up the attributes */
pthread_attr_destroy(&attr);
}
-/**
+/*
* \brief Here's where it all begins.
* \param argc number of commandline args
* \param argv the commandline arguments
*/
int main(int argc, char **argv)
{
- pthread_t SessThread; /**< Thread descriptor */
- pthread_attr_t attr; /**< Thread attributes */
- int a, i; /**< General-purpose variables */
+ 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]="0.0.0.0";
char dirbuffer[PATH_MAX]="";
char *locale = NULL;
char *mo = NULL;
#endif /* ENABLE_NLS */
- char uds_listen_path[PATH_MAX]; /**< listen on a unix domain socket? */
+ char uds_listen_path[PATH_MAX]; /*< listen on a unix domain socket? */
+
+ /* 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 */
+ if (getenv("TZ") == NULL)
+ putenv("TZ=UTC");
+
+ /* Parse command line */
#ifdef HAVE_OPENSSL
while ((a = getopt(argc, argv, "h:i:p:t:x:dD:cfs")) != EOF)
#else
start_daemon(pidfile);
}
else {
- signal(SIGTERM, graceful_shutdown);
+/// signal(SIGTERM, graceful_shutdown);
+ signal(SIGHUP, graceful_shutdown);
}
- /** Tell 'em who's in da house */
- lprintf(1, SERVER "\n");
- lprintf(1, "Copyright (C) 1996-2007 by the Citadel development team.\n"
+ /* Tell 'em who's in da house */
+ 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"
);
- /** initialize the International Bright Young Thing */
+ /* initialize the International Bright Young Thing */
#ifdef ENABLE_NLS
initialize_locales();
locale = setlocale(LC_ALL, "");
"%s/citadel.cer",
ctdl_key_dir);
- /** we should go somewhere we can leave our coredump, if enabled... */
+ /* 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");
- }
+ }
initialize_viewdefs();
initialize_axdefs();
- /**
+ /*
* Set up a place to put thread-specific data.
* We only need a single pointer per thread - it points to the
* wcsession struct to which the thread is currently bound.
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.
* We don't stick this in the wcsession struct because SSL starts
* up before the session is bound, and it gets torn down between
}
#endif
- /**
+ /*
* Bind the server to our favorite port.
* There is no need to check for errors, because ig_tcp_server()
* exits if it doesn't succeed.
pthread_mutex_init(&SessionListMutex, NULL);
- /**
+ /*
* Start up the housekeeping thread
*/
pthread_attr_init(&attr);
(void *(*)(void *)) housekeeping_loop, NULL);
- /**
+ /*
* If this is an HTTPS server, fire up SSL
*/
#ifdef HAVE_OPENSSL
}
#endif
- /** Start a few initial worker threads */
+ /* Start a few initial worker threads */
for (i = 0; i < (MIN_WORKER_THREADS); ++i) {
spawn_another_worker_thread();
}
}
-/**
+/*
* 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;
+
+ tv.tv_sec = 0;
+ tv.tv_usec = 10000;
+ FD_ZERO(&readset);
+ FD_SET(msock, &readset);
do {
- /** Only one thread can accept at a time */
+ /* 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 {
- /** Set the SO_REUSEADDR socket option */
+ 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();
+#ifdef WEBCIT_WITH_CALENDAR_SERVICE
+ lprintf(2, "master shutdown: cleaning up libical\n");
+ free_zone_directory ();
+ icaltimezone_release_zone_tab ();
+ icalmemory_free_ring ();
+#endif
+ 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. */
+ /* If we are an HTTPS server, go crypto now. */
#ifdef HAVE_OPENSSL
if (is_https) {
if (starttls(ssock) != 0) {
if (fail_this_transaction == 0) {
- /** Perform an HTTP transaction... */
+ /* Perform an HTTP transaction... */
context_loop(ssock);
- /** Shut down SSL/TLS if required... */
+ /* Shut down SSL/TLS if required... */
#ifdef HAVE_OPENSSL
if (is_https) {
endtls();
}
#endif
- /** ...and close the socket. */
+ /* ...and close the socket. */
lingering_close(ssock);
}
} while (!time_to_die);
- lprintf (1, "bye");
+ lprintf (1, "bye\n");
pthread_exit(NULL);
}
-/**
+/*
* \brief logprintf. log messages
* logs to stderr if loglevel is lower than the verbosity set at startup
* \param loglevel level of the message
}
-/**
+/*
* \brief print the actual stack frame.
*/
void wc_backtrace(void)
projects / citadel.git / blobdiff