/*
- * context_loop.c
+ * $Id$
*
* This is the other half of the webserver. It handles the task of hooking
- * up HTTP requests with the session they belong to, using HTTP cookies to
+ * up HTTP requests with the sessions they belong to, using HTTP cookies to
* keep track of things. If the HTTP request doesn't belong to any currently
- * active session, a new session is spawned.
+ * active session, a new session is started.
*
- * $Id$
*/
-#include <ctype.h>
-#include <stdlib.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <stdio.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <sys/socket.h>
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
-#include <netinet/in.h>
-#include <netdb.h>
-#include <string.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <pthread.h>
#include "webcit.h"
#include "webserver.h"
+#include "modules_init.h"
-/*
- * We keep one of these around for each active session
- */
-struct wc_session {
- struct wc_session *next; /* Next session in list */
- int session_id; /* Session ID */
- int inpipe[2]; /* Data from webserver to session */
- int outpipe[2]; /* Data from session to webserver */
- pthread_mutex_t critter; /* Critical section uses pipes */
- };
+/* Only one thread may manipulate SessionList at a time... */
+pthread_mutex_t SessionListMutex;
-struct wc_session *SessionList = NULL;
+wcsession *SessionList = NULL; /**< our sessions ????*/
-/* Only one thread may manipulate SessionList at a time... */
-pthread_mutex_t MasterCritter;
+pthread_key_t MyConKey; /**< TSD key for MySession() */
-int GenerateSessionID(void) {
- return getpid();
- }
-void gets0(int fd, char buf[]) {
+void DestroySession(wcsession **sessions_to_kill)
+{
+ close((*sessions_to_kill)->serv_sock);
+ close((*sessions_to_kill)->chat_sock);
+/*
+// if ((*sessions_to_kill)->preferences != NULL) {
+// free((*sessions_to_kill)->preferences);
+// }
+*/
+ if ((*sessions_to_kill)->cache_fold != NULL) {
+ free((*sessions_to_kill)->cache_fold);
+ }
+ DeleteServInfo(&((*sessions_to_kill)->serv_info));
+ free_march_list((*sessions_to_kill));
+
+ session_destroy_modules(*sessions_to_kill);
- buf[0] = 0;
- do {
- buf[strlen(buf)+1] = 0;
- read(fd, &buf[strlen(buf)], 1);
- } while (buf[strlen(buf)-1] >= 32);
- buf[strlen(buf)-1] = 0;
+ free((*sessions_to_kill));
+ (*sessions_to_kill) = NULL;
+}
+
+void shutdown_sessions(void)
+{
+ wcsession *sptr;
+
+ for (sptr = SessionList; sptr != NULL; sptr = sptr->next) {
+ sptr->killthis = 1;
}
+}
-/*
- * Collapse multiple cookies on one line
- */
-void req_gets(int sock, char *buf, char *hold) {
- int a;
+void do_housekeeping(void)
+{
+ wcsession *sptr, *ss;
+ wcsession *sessions_to_kill = NULL;
+ int num_sessions = 0;
+ static int num_threads = MIN_WORKER_THREADS;
- if (strlen(hold)==0) {
- client_gets(sock, buf);
- }
- else {
- strcpy(buf, hold);
+ /**
+ * Lock the session list, moving any candidates for euthanasia into
+ * a separate list.
+ */
+ pthread_mutex_lock(&SessionListMutex);
+ num_sessions = 0;
+ for (sptr = SessionList; sptr != NULL; sptr = sptr->next) {
+ ++num_sessions;
+
+ /** Kill idle sessions */
+ if ((time(NULL) - (sptr->lastreq)) >
+ (time_t) WEBCIT_TIMEOUT) {
+ sptr->killthis = 1;
}
- strcpy(hold, "");
-
- if (!strncasecmp(buf, "Cookie: ", 8)) {
- for (a=0; a<strlen(buf); ++a) if (buf[a]==';') {
- sprintf(hold, "Cookie: %s", &buf[a+1]);
- buf[a]=0;
- while (isspace(hold[8])) strcpy(&hold[8], &hold[9]);
- return;
+
+ /** Remove sessions flagged for kill */
+ if (sptr->killthis) {
+
+ /** remove session from linked list */
+ if (sptr == SessionList) {
+ SessionList = SessionList->next;
+ }
+ else for (ss=SessionList;ss!=NULL;ss=ss->next) {
+ if (ss->next == sptr) {
+ ss->next = ss->next->next;
+ }
}
+
+ sptr->next = sessions_to_kill;
+ sessions_to_kill = sptr;
}
}
+ pthread_mutex_unlock(&SessionListMutex);
+
+ /**
+ * Now free up and destroy the culled sessions.
+ */
+ while (sessions_to_kill != NULL) {
+ lprintf(3, "Destroying session %d\n", sessions_to_kill->wc_session);
+ pthread_mutex_lock(&sessions_to_kill->SessionMutex);
+ pthread_mutex_unlock(&sessions_to_kill->SessionMutex);
+ sptr = sessions_to_kill->next;
+
+ DestroySession(&sessions_to_kill);
+ sessions_to_kill = sptr;
+ --num_sessions;
+ }
+
+ /**
+ * If there are more sessions than threads, then we should spawn
+ * more threads ... up to a predefined maximum.
+ */
+ while ( (num_sessions > num_threads)
+ && (num_threads <= MAX_WORKER_THREADS) ) {
+ spawn_another_worker_thread();
+ ++num_threads;
+ lprintf(3, "There are %d sessions and %d threads active.\n",
+ num_sessions, num_threads);
+ }
+}
+
+
+/*
+ * Wake up occasionally and clean house
+ */
+void housekeeping_loop(void)
+{
+ while (1) {
+ sleeeeeeeeeep(HOUSEKEEPING);
+ do_housekeeping();
+ }
+}
+
/*
- * Grab a lock on the session, so other threads don't try to access
- * the pipes at the same time.
+ * Create a Session id
+ * Generate a unique WebCit session ID (which is not the same thing as the
+ * Citadel session ID).
*/
-static void lock_session(struct wc_session *session) {
- printf("Locking session %d...\n", session->session_id);
- pthread_mutex_lock(&session->critter);
- printf(" ...got lock\n");
+int GenerateSessionID(void)
+{
+ static int seq = (-1);
+
+ if (seq < 0) {
+ seq = (int) time(NULL);
}
+
+ return ++seq;
+}
+
/*
- * Let go of the lock.
+ * lingering_close() a`la Apache. see
+ * http://www.apache.org/docs/misc/fin_wait_2.html for rationale
*/
-static void unlock_session(struct wc_session *session) {
- printf("Unlocking.\n");
- pthread_mutex_unlock(&session->critter);
+int lingering_close(int fd)
+{
+ char buf[SIZ];
+ int i;
+ fd_set set;
+ struct timeval tv, start;
+
+ gettimeofday(&start, NULL);
+ shutdown(fd, 1);
+ do {
+ do {
+ gettimeofday(&tv, NULL);
+ tv.tv_sec = SLEEPING - (tv.tv_sec - start.tv_sec);
+ tv.tv_usec = start.tv_usec - tv.tv_usec;
+ if (tv.tv_usec < 0) {
+ tv.tv_sec--;
+ tv.tv_usec += 1000000;
+ }
+ FD_ZERO(&set);
+ FD_SET(fd, &set);
+ i = select(fd + 1, &set, NULL, NULL, &tv);
+ } while (i == -1 && errno == EINTR);
+
+ if (i <= 0)
+ break;
+
+ i = read(fd, buf, sizeof buf);
+ } while (i != 0 && (i != -1 || errno == EINTR));
+
+ return close(fd);
+}
+
+
+
+/*
+ * Look for commonly-found probes of malware such as worms, viruses, trojans, and Microsoft Office.
+ * Short-circuit these requests so we don't have to send them through the full processing loop.
+ */
+int is_bogus(StrBuf *http_cmd) {
+ const char *url;
+ int i, max;
+ const char *bogus_prefixes[] = {
+ "/scripts/root.exe", /* Worms and trojans and viruses, oh my! */
+ "/c/winnt",
+ "/MSADC/",
+ "/_vti", /* Broken Microsoft DAV implementation */
+ "/MSOffice", /* Stoopid MSOffice thinks everyone is IIS */
+ "/nonexistenshit" /* Exploit found in the wild January 2009 */
+ };
+
+ url = ChrPtr(http_cmd);
+ if (IsEmptyStr(url)) return(1);
+ ++url;
+
+ max = sizeof(bogus_prefixes) / sizeof(char *);
+
+ for (i=0; i<max; ++i) {
+ if (!strncasecmp(url, bogus_prefixes[i], strlen(bogus_prefixes[i]))) {
+ return(2);
+ }
}
-extern const char *defaulthost;
-extern const char *defaultport;
+ return(0); /* probably ok */
+}
+
+
+/*const char *nix(void *vptr) {return ChrPtr( (StrBuf*)vptr);}*/
/*
- * This loop gets called once for every HTTP connection made to WebCit.
+ * handle one request
+ *
+ * This loop gets called once for every HTTP connection made to WebCit. At
+ * this entry point we have an HTTP socket with a browser allegedly on the
+ * other end, but we have not yet bound to a WebCit session.
+ *
+ * The job of this function is to locate the correct session and bind to it,
+ * or create a session if necessary and bind to it, then run the WebCit
+ * transaction loop. Afterwards, we unbind from the session. When this
+ * function returns, the worker thread is then free to handle another
+ * transaction.
*/
-void *context_loop(int sock) {
- char (*req)[256];
- char buf[256], hold[256];
- int num_lines = 0;
- int a;
- int f;
+void context_loop(int *sock)
+{
+ const char *Pos = NULL;
+ const char *buf;
int desired_session = 0;
- char str_session[256];
- struct wc_session *sptr;
- struct wc_session *TheSession;
- int ContentLength;
- int CloseSession = 0;
-
- if ((req = malloc(sizeof(char[256][256]))) == NULL) {
- printf("Can't malloc buffers; dropping connection.\n");
- close (sock);
- return NULL;
- }
+ int got_cookie = 0;
+ int gzip_ok = 0;
+ wcsession *TheSession, *sptr;
+ char httpauth_string[1024];
+ char httpauth_user[1024];
+ char httpauth_pass[1024];
+ int session_is_new = 0;
+ int nLine = 0;
+ int LineLen;
+ void *vLine;
+ StrBuf *Buf, *Line, *LastLine, *HeaderName, *ReqLine, *ReqType, *HTTPVersion;
+ const char *pch, *pchs, *pche;
+ HashList *HTTPHeaders;
- printf("Reading request from socket %d\n", sock);
+ strcpy(httpauth_string, "");
+ strcpy(httpauth_user, DEFAULT_HTTPAUTH_USER);
+ strcpy(httpauth_pass, DEFAULT_HTTPAUTH_PASS);
/*
* Find out what it is that the web browser is asking for
*/
- ContentLength = 0;
- do {
- req_gets(sock, buf, hold);
- if (!strncasecmp(buf, "Cookie: wc_session=", 19)) {
- desired_session = atoi(&buf[19]);
- }
- if (!strncasecmp(buf, "Content-length: ", 16)) {
- ContentLength = atoi(&buf[16]);
- }
- strcpy(&req[num_lines++][0], buf);
- } while(strlen(buf)>0);
+ HeaderName = NewStrBuf();
+ Buf = NewStrBuf();
+ LastLine = NULL;
+ HTTPHeaders = NewHash(1, NULL);
/*
- * See if there's an existing session open with the desired ID
+ * Read in the request
*/
- TheSession = NULL;
- if (desired_session != 0) {
- pthread_mutex_lock(&MasterCritter);
- for (sptr=SessionList; sptr!=NULL; sptr=sptr->next) {
- if (sptr->session_id == desired_session) {
- TheSession = sptr;
- lock_session(TheSession);
- }
- }
- pthread_mutex_unlock(&MasterCritter);
+ do {
+ nLine ++;
+ Line = NewStrBuf();
+
+
+ if (ClientGetLine(sock, Line, Buf, &Pos) < 0) return;
+
+ LineLen = StrLength(Line);
+
+ if (nLine == 1) {
+ ReqLine = Line;
+ continue;
+ }
+ if (LineLen == 0) {
+ FreeStrBuf(&Line);
+ continue;
}
- /*
- * Create a new session if we have to
- */
- if (TheSession == NULL) {
- printf("Creating a new session\n");
- pthread_mutex_lock(&MasterCritter);
- TheSession = (struct wc_session *)
- malloc(sizeof(struct wc_session));
- TheSession->session_id = GenerateSessionID();
- pipe(TheSession->inpipe);
- pipe(TheSession->outpipe);
- pthread_mutex_init(&TheSession->critter, NULL);
- lock_session(TheSession);
- TheSession->next = SessionList;
- SessionList = TheSession;
- pthread_mutex_unlock(&MasterCritter);
- sprintf(str_session, "%d", TheSession->session_id);
- f = fork();
- fflush(stdout); fflush(stdin);
- if (f==0) {
- dup2(TheSession->inpipe[0], 0);
- dup2(TheSession->outpipe[1], 1);
- /* Close the ends of the pipes that we're not using */
- close(TheSession->inpipe[1]);
- close(TheSession->outpipe[0]);
- execlp("./webcit", "webcit", str_session, defaulthost,
- defaultport, NULL);
- printf("HTTP/1.0 404 WebCit Failure\n\n");
- printf("Server: %s\n", SERVER);
- printf("Content-type: text/html\n");
- printf("Content-length: 76\n");
- printf("\n");
- printf("<HTML><HEAD><TITLE>Error</TITLE></HEAD>\n");
- printf("<BODY>execlp() failed</BODY></HTML>\n");
- exit(0);
- }
- /* Close the ends of the pipes that we're not using */
- close(TheSession->inpipe[0]);
- close(TheSession->outpipe[1]);
+ /* Do we need to Unfold? */
+ if ((LastLine != NULL) &&
+ (isspace(*ChrPtr(Line)))) {
+ pch = pchs = ChrPtr(Line);
+ pche = pchs + StrLength(Line);
+ while (isspace(*pch) && (pch < pche))
+ pch ++;
+ StrBufCutLeft(Line, pch - pchs);
+ StrBufAppendBuf(LastLine, Line, 0);
+ FreeStrBuf(&Line);
+ continue;
}
- /*
- * Send the request to the appropriate session...
+ StrBufSanitizeAscii(Line, 'ยง');
+ StrBufExtract_token(HeaderName, Line, 0, ':');
+
+ pchs = ChrPtr(Line);
+ pch = pchs + StrLength(HeaderName) + 1;
+ pche = pchs + StrLength(Line);
+ while (isspace(*pch) && (pch < pche))
+ pch ++;
+ StrBufCutLeft(Line, pch - pchs);
+
+ StrBufUpCase(HeaderName);
+ Put(HTTPHeaders, SKEY(HeaderName), Line, HFreeStrBuf);
+ LastLine = Line;
+ } while (LineLen > 0);
+ FreeStrBuf(&HeaderName);
+
+/* dbg_PrintHash(HTTPHeaders, nix, NULL); */
+
+
+ /*
+ * Can we compress?
*/
- printf(" Writing %d lines of command\n", num_lines);
- printf("%s\n", &req[0][0]);
- for (a=0; a<num_lines; ++a) {
- write(TheSession->inpipe[1], &req[a][0], strlen(&req[a][0]));
- write(TheSession->inpipe[1], "\n", 1);
- }
- printf(" Writing %d bytes of content\n", ContentLength);
- while (ContentLength--) {
- read(sock, buf, 1);
- write(TheSession->inpipe[1], buf, 1);
+ if (GetHash(HTTPHeaders, HKEY("ACCEPT-ENCODING"), &vLine) &&
+ (vLine != NULL)) {
+ buf = ChrPtr((StrBuf*)vLine);
+ if (strstr(&buf[16], "gzip")) {
+ gzip_ok = 1;
}
+ }
/*
- * ...and get the response.
+ * Browser-based sessions use cookies for session authentication
*/
- printf(" Reading response\n");
- ContentLength = 0;
- do {
- gets0(TheSession->outpipe[0], buf);
- write(sock, buf, strlen(buf));
- write(sock, "\n", 1);
- if (!strncasecmp(buf, "Content-length: ", 16))
- ContentLength = atoi(&buf[16]);
- if (!strcasecmp(buf, "X-WebCit-Session: close")) {
- CloseSession = 1;
- }
- } while (strlen(buf) > 0);
+ if (GetHash(HTTPHeaders, HKEY("COOKIE"), &vLine) &&
+ (vLine != NULL)) {
+ cookie_to_stuff(vLine, &desired_session,
+ NULL, NULL, NULL);
+ got_cookie = 1;
+ }
- printf(" Reading %d bytes of content\n", ContentLength);
- while(ContentLength--) {
- read(TheSession->outpipe[0], buf, 1);
- write(sock, buf, 1);
+ /*
+ * GroupDAV-based sessions use HTTP authentication
+ */
+ if (GetHash(HTTPHeaders, HKEY("AUTHORIZATION"), &vLine) &&
+ (vLine != NULL)) {
+ Line = (StrBuf*)vLine;
+ if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
+ StrBufCutLeft(Line, 6);
+ CtdlDecodeBase64(httpauth_string, ChrPtr(Line), StrLength(Line));
+ extract_token(httpauth_user, httpauth_string, 0, ':', sizeof httpauth_user);
+ extract_token(httpauth_pass, httpauth_string, 1, ':', sizeof httpauth_pass);
}
+ else
+ lprintf(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
+ }
+
+ if (GetHash(HTTPHeaders, HKEY("IF-MODIFIED-SINCE"), &vLine) &&
+ (vLine != NULL)) {
+ if_modified_since = httpdate_to_timestamp((StrBuf*)vLine);
+ }
+
+
+
+ ReqType = NewStrBuf();
+ HTTPVersion = NewStrBuf();
+ StrBufExtract_token(HTTPVersion, ReqLine, 2, ' ');
+ StrBufExtract_token(ReqType, ReqLine, 0, ' ');
+ StrBufCutLeft(ReqLine, StrLength(ReqType) + 1);
+ StrBufCutRight(ReqLine, StrLength(HTTPVersion) + 1);
/*
- * Now our HTTP connection is done. It would be relatively easy
- * to support HTTP/1.1 "persistent" connections by looping back to
- * the top of this function. For now, we'll just close.
+ * If the request is prefixed by "/webcit" then chop that off. This
+ * allows a front end web server to forward all /webcit requests to us
+ * while still using the same web server port for other things.
*/
- printf(" Closing socket\n");
- close(sock);
+ if ( (StrLength(ReqLine) >= 8) && (strstr(ChrPtr(ReqLine), "/webcit/")) ) {
+ StrBufCutLeft(ReqLine, 7);
+ }
- unlock_session(TheSession);
+ /* Begin parsing the request. */
+#ifdef TECH_PREVIEW
+ if ((strncmp(ChrPtr(ReqLine), "/sslg", 5) != 0) &&
+ (strncmp(ChrPtr(ReqLine), "/static/", 8) != 0) &&
+ (strncmp(ChrPtr(ReqLine), "/tiny_mce/", 10) != 0) &&
+ (strncmp(ChrPtr(ReqLine), "/wholist_section", 16) != 0) &&
+ (strstr(ChrPtr(ReqLine), "wholist_section") == NULL)) {
+#endif
+ lprintf(5, "HTTP: %s %s %s\n", ChrPtr(ReqType), ChrPtr(ReqLine), ChrPtr(HTTPVersion));
+#ifdef TECH_PREVIEW
+ }
+#endif
- /*
- * If the last response included a "close session" directive,
- * remove the context now.
+ /** Check for bogus requests */
+ if ((StrLength(HTTPVersion) == 0) ||
+ (StrLength(ReqType) == 0) ||
+ is_bogus(ReqLine)) {
+ StrBufPlain(ReqLine, HKEY("/404 HTTP/1.1"));
+ StrBufPlain(ReqType, HKEY("GET"));
+ }
+ FreeStrBuf(&HTTPVersion);
+
+ /**
+ * While we're at it, gracefully handle requests for the
+ * robots.txt and favicon.ico files.
+ */
+ if (!strncasecmp(ChrPtr(ReqLine), "/robots.txt", 11)) {
+ StrBufPlain(ReqLine,
+ HKEY("/static/robots.txt"
+ "?force_close_session=yes HTTP/1.1"));
+ StrBufPlain(ReqType, HKEY("GET"));
+ }
+ else if (!strncasecmp(ChrPtr(ReqLine), "/favicon.ico", 12)) {
+ StrBufPlain(ReqLine, HKEY("/static/favicon.ico"));
+ StrBufPlain(ReqType, HKEY("GET"));
+ }
+
+ /**
+ * These are the URL's which may be executed without a
+ * session cookie already set. If it's not one of these,
+ * force the session to close because cookies are
+ * probably disabled on the client browser.
*/
- if (CloseSession) {
- printf("Removing session.\n");
- pthread_mutex_lock(&MasterCritter);
+ else if ( (StrLength(ReqLine) > 1 )
+ && (strncasecmp(ChrPtr(ReqLine), "/listsub", 8))
+ && (strncasecmp(ChrPtr(ReqLine), "/freebusy", 9))
+ && (strncasecmp(ChrPtr(ReqLine), "/do_logout", 10))
+ && (strncasecmp(ChrPtr(ReqLine), "/groupdav", 9))
+ && (strncasecmp(ChrPtr(ReqLine), "/static", 7))
+ && (strncasecmp(ChrPtr(ReqLine), "/rss", 4))
+ && (strncasecmp(ChrPtr(ReqLine), "/404", 4))
+ && (got_cookie == 0)) {
+ StrBufPlain(ReqLine,
+ HKEY("/static/nocookies.html"
+ "?force_close_session=yes"));
+ }
- lock_session(TheSession);
+ /**
+ * See if there's an existing session open with the desired ID or user/pass
+ */
+ TheSession = NULL;
+
+ if (TheSession == NULL) {
+ pthread_mutex_lock(&SessionListMutex);
+ for (sptr = SessionList;
+ ((sptr != NULL) && (TheSession == NULL));
+ sptr = sptr->next) {
- if (SessionList==TheSession) {
- SessionList = SessionList->next;
+ /** If HTTP-AUTH, look for a session with matching credentials */
+ if ( (!IsEmptyStr(httpauth_user))
+ &&(!strcasecmp(ChrPtr(sptr->httpauth_user), httpauth_user))
+ &&(!strcasecmp(ChrPtr(sptr->httpauth_pass), httpauth_pass)) ) {
+ TheSession = sptr;
}
- else {
- for (sptr=SessionList; sptr!=NULL; sptr=sptr->next) {
- if (sptr->next == TheSession) {
- sptr->next = TheSession->next;
- }
- }
+
+ /** If cookie-session, look for a session with matching session ID */
+ if ( (desired_session != 0) && (sptr->wc_session == desired_session)) {
+ TheSession = sptr;
}
- close(TheSession->inpipe[1]);
- close(TheSession->outpipe[0]);
- unlock_session(TheSession);
- free(TheSession);
+ }
+ pthread_mutex_unlock(&SessionListMutex);
+ }
+
+ /**
+ * Create a new session if we have to
+ */
+ if (TheSession == NULL) {
+ lprintf(3, "Creating a new session\n");
+ TheSession = (wcsession *)
+ malloc(sizeof(wcsession));
+ memset(TheSession, 0, sizeof(wcsession));
+ TheSession->headers = HTTPHeaders;
+ TheSession->serv_sock = (-1);
+ TheSession->chat_sock = (-1);
- pthread_mutex_unlock(&MasterCritter);
+ /* If we're recreating a session that expired, it's best to give it the same
+ * session number that it had before. The client browser ought to pick up
+ * the new session number and start using it, but in some rare situations it
+ * doesn't, and that's a Bad Thing because it causes lots of spurious sessions
+ * to get created.
+ */
+ if (desired_session == 0) {
+ TheSession->wc_session = GenerateSessionID();
+ }
+ else {
+ TheSession->wc_session = desired_session;
}
- free(req);
+ TheSession->httpauth_user = NewStrBufPlain(httpauth_user, -1);
+ TheSession->httpauth_pass = NewStrBufPlain(httpauth_user, -1);
+
+ pthread_setspecific(MyConKey, (void *)TheSession);
+ session_new_modules(TheSession);
+
+ pthread_mutex_init(&TheSession->SessionMutex, NULL);
+ pthread_mutex_lock(&SessionListMutex);
+ TheSession->nonce = rand();
+ TheSession->next = SessionList;
+ TheSession->is_mobile = -1;
+ SessionList = TheSession;
+ pthread_mutex_unlock(&SessionListMutex);
+ session_is_new = 1;
+ }
+ TheSession->headers = HTTPHeaders;
/*
- * The thread handling this HTTP connection is now finished.
+ * A future improvement might be to check the session integrity
+ * at this point before continuing.
*/
- return NULL;
- }
+
+ /*
+ * Bind to the session and perform the transaction
+ */
+ pthread_mutex_lock(&TheSession->SessionMutex); /* bind */
+ pthread_setspecific(MyConKey, (void *)TheSession);
+
+ TheSession->lastreq = time(NULL); /* log */
+ TheSession->http_sock = *sock;
+ TheSession->gzip_ok = gzip_ok;
+
+ session_attach_modules(TheSession);
+
+ session_loop(ReqLine, ReqType, Buf, &Pos); /* do transaction */
+ session_detach_modules(TheSession);
+
+ TheSession->headers = NULL;
+ pthread_mutex_unlock(&TheSession->SessionMutex); /* unbind */
+
+ /* Free the request buffer */
+ DeleteHash(&HTTPHeaders);
+ FreeStrBuf(&ReqLine);
+ FreeStrBuf(&ReqType);
+ FreeStrBuf(&Buf);
+}
+
+void tmplput_nonce(StrBuf *Target, WCTemplputParams *TP)
+{
+ wcsession *WCC = WC;
+ StrBufAppendPrintf(Target, "%ld",
+ (WCC != NULL)? WCC->nonce:0);
+}
+
+void tmplput_current_user(StrBuf *Target, WCTemplputParams *TP)
+{
+ StrBufAppendTemplate(Target, TP, WC->wc_fullname, 0);
+}
+
+void tmplput_current_room(StrBuf *Target, WCTemplputParams *TP)
+{
+ StrBufAppendTemplate(Target, TP, WC->wc_roomname, 0);
+}
+
+
+
+void
+InitModule_CONTEXT
+(void)
+{
+ RegisterNamespace("CURRENT_USER", 0, 1, tmplput_current_user, CTX_NONE);
+ RegisterNamespace("CURRENT_ROOM", 0, 1, tmplput_current_room, CTX_NONE);
+ RegisterNamespace("NONCE", 0, 0, tmplput_nonce, 0);
+}
projects / citadel.git / blobdiff