4 * This is the other half of the webserver. It handles the task of hooking
5 * up HTTP requests with the sessions they belong to, using HTTP cookies to
6 * keep track of things. If the HTTP request doesn't belong to any currently
7 * active session, a new session is started.
9 * Copyright (c) 1996-2010 by the citadel.org team
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 3 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include "webserver.h"
28 #include "modules_init.h"
30 /* Only one thread may manipulate SessionList at a time... */
31 pthread_mutex_t SessionListMutex;
33 wcsession *SessionList = NULL; /* Linked list of all webcit sessions */
35 pthread_key_t MyConKey; /* TSD key for MySession() */
36 HashList *HttpReqTypes = NULL;
37 HashList *HttpHeaderHandler = NULL;
38 extern HashList *HandlerHash;
40 /* the following two values start at 1 because the initial parent thread counts as one. */
41 int num_threads_existing = 1; /* Number of worker threads which exist. */
42 int num_threads_executing = 1; /* Number of worker threads currently executing. */
44 void DestroyHttpHeaderHandler(void *V)
47 pHdr = (OneHttpHeader*) V;
48 FreeStrBuf(&pHdr->Val);
52 void shutdown_sessions(void)
56 for (sptr = SessionList; sptr != NULL; sptr = sptr->next) {
61 void do_housekeeping(void)
64 wcsession *sessions_to_kill = NULL;
67 * Lock the session list, moving any candidates for euthanasia into
70 pthread_mutex_lock(&SessionListMutex);
71 for (sptr = SessionList; sptr != NULL; sptr = sptr->next) {
73 /* Kill idle sessions */
74 if ((time(NULL) - (sptr->lastreq)) > (time_t) WEBCIT_TIMEOUT) {
78 /* Remove sessions flagged for kill */
81 /** remove session from linked list */
82 if (sptr == SessionList) {
83 SessionList = SessionList->next;
85 else for (ss=SessionList;ss!=NULL;ss=ss->next) {
86 if (ss->next == sptr) {
87 ss->next = ss->next->next;
91 sptr->next = sessions_to_kill;
92 sessions_to_kill = sptr;
95 pthread_mutex_unlock(&SessionListMutex);
98 * Now free up and destroy the culled sessions.
100 while (sessions_to_kill != NULL) {
101 lprintf(3, "Destroying session %d\n", sessions_to_kill->wc_session);
102 pthread_mutex_lock(&sessions_to_kill->SessionMutex);
103 pthread_mutex_unlock(&sessions_to_kill->SessionMutex);
104 sptr = sessions_to_kill->next;
106 session_destroy_modules(&sessions_to_kill);
107 sessions_to_kill = sptr;
112 * Check the size of our thread pool. If all threads are executing, spawn another.
114 void check_thread_pool_size(void)
116 if (time_to_die) return; /* don't expand the thread pool during shutdown */
118 begin_critical_section(S_SPAWNER); /* only one of these should run at a time */
120 (num_threads_executing >= num_threads_existing)
121 && (num_threads_existing < MAX_WORKER_THREADS)
123 lprintf(3, "%d of %d threads are executing. Adding another worker thread.\n",
124 num_threads_executing,
127 spawn_another_worker_thread();
129 end_critical_section(S_SPAWNER);
134 * Wake up occasionally and clean house
136 void housekeeping_loop(void)
139 sleeeeeeeeeep(HOUSEKEEPING);
146 * Create a Session id
147 * Generate a unique WebCit session ID (which is not the same thing as the
148 * Citadel session ID).
150 int GenerateSessionID(void)
152 static int seq = (-1);
155 seq = (int) time(NULL);
161 wcsession *FindSession(wcsession **wclist, ParsedHttpHdrs *Hdr, pthread_mutex_t *ListMutex)
163 wcsession *sptr = NULL;
164 wcsession *TheSession = NULL;
166 if (Hdr->HR.got_auth == AUTH_BASIC) {
170 pthread_mutex_lock(ListMutex);
171 for (sptr = *wclist; ((sptr != NULL) && (TheSession == NULL)); sptr = sptr->next) {
173 /* If HTTP-AUTH, look for a session with matching credentials */
174 switch (Hdr->HR.got_auth)
177 if ( (Hdr->HR.SessionKey != sptr->SessionKey))
179 if ((!strcasecmp(ChrPtr(Hdr->c_username), ChrPtr(sptr->wc_username))) &&
180 (!strcasecmp(ChrPtr(Hdr->c_password), ChrPtr(sptr->wc_password))) ) {
183 if (TheSession == NULL)
184 lprintf(1, "found sessionkey [%ld], but credentials for [%s|%s] didn't match\n",
185 Hdr->HR.SessionKey,ChrPtr(Hdr->c_username), ChrPtr(sptr->wc_username));
188 /* If cookie-session, look for a session with matching session ID */
189 if ( (Hdr->HR.desired_session != 0) &&
190 (sptr->wc_session == Hdr->HR.desired_session)) {
198 pthread_mutex_unlock(ListMutex);
199 if (TheSession == NULL)
200 lprintf(1, "didn't find sessionkey [%ld] for user [%s]\n",
201 Hdr->HR.SessionKey,ChrPtr(Hdr->c_username));
205 wcsession *CreateSession(int Lockable, int Static, wcsession **wclist, ParsedHttpHdrs *Hdr, pthread_mutex_t *ListMutex)
207 wcsession *TheSession;
209 lprintf(3, "Creating a new session\n");
210 TheSession = (wcsession *) malloc(sizeof(wcsession));
211 memset(TheSession, 0, sizeof(wcsession));
212 TheSession->Hdr = Hdr;
213 TheSession->SessionKey = Hdr->HR.SessionKey;
214 TheSession->serv_sock = (-1);
215 TheSession->is_mobile = -1;
217 pthread_setspecific(MyConKey, (void *)TheSession);
219 /* If we're recreating a session that expired, it's best to give it the same
220 * session number that it had before. The client browser ought to pick up
221 * the new session number and start using it, but in some rare situations it
222 * doesn't, and that's a Bad Thing because it causes lots of spurious sessions
225 if (Hdr->HR.desired_session == 0) {
226 TheSession->wc_session = GenerateSessionID();
229 TheSession->wc_session = Hdr->HR.desired_session;
231 Hdr->HR.Static = Static;
232 session_new_modules(TheSession);
235 pthread_mutex_init(&TheSession->SessionMutex, NULL);
237 if (ListMutex != NULL)
238 pthread_mutex_lock(ListMutex);
240 if (wclist != NULL) {
241 TheSession->nonce = rand();
242 TheSession->next = *wclist;
243 *wclist = TheSession;
245 if (ListMutex != NULL)
246 pthread_mutex_unlock(ListMutex);
253 * Detects a 'mobile' user agent
255 int is_mobile_ua(char *user_agent) {
256 if (strstr(user_agent,"iPhone OS") != NULL) {
258 } else if (strstr(user_agent,"Windows CE") != NULL) {
260 } else if (strstr(user_agent,"SymbianOS") != NULL) {
262 } else if (strstr(user_agent, "Opera Mobi") != NULL) {
264 } else if (strstr(user_agent, "Firefox/2.0.0 Opera 9.51 Beta") != NULL) {
265 /* For some reason a new install of Opera 9.51beta decided to spoof. */
271 /* If it's a "force 404" situation then display the error and bail. */
274 hprintf("HTTP/1.1 404 Not found\r\n");
275 hprintf("Content-Type: text/plain\r\n");
276 wc_printf("Not found\r\n");
280 int ReadHttpSubject(ParsedHttpHdrs *Hdr, StrBuf *Line, StrBuf *Buf)
283 void *vLine, *vHandler;
284 const char *Pos = NULL;
287 Hdr->HR.ReqLine = Line;
288 /* The requesttype... GET, POST... */
289 StrBufExtract_token(Buf, Hdr->HR.ReqLine, 0, ' ');
290 if (GetHash(HttpReqTypes, SKEY(Buf), &vLine) &&
293 Hdr->HR.eReqType = *(long*)vLine;
296 Hdr->HR.eReqType = eGET;
299 StrBufCutLeft(Hdr->HR.ReqLine, StrLength(Buf) + 1);
301 /* the HTTP Version... */
302 StrBufExtract_token(Buf, Hdr->HR.ReqLine, 1, ' ');
303 StrBufCutRight(Hdr->HR.ReqLine, StrLength(Buf) + 1);
305 if (StrLength(Buf) == 0) {
306 Hdr->HR.eReqType = eGET;
310 StrBufAppendBuf(Hdr->this_page, Hdr->HR.ReqLine, 0);
311 /* chop Filename / query arguments */
312 Args = strchr(ChrPtr(Hdr->HR.ReqLine), '?');
313 if (Args == NULL) /* whe're not that picky about params... TODO: this will spoil '&' in filenames.*/
314 Args = strchr(ChrPtr(Hdr->HR.ReqLine), '&');
316 Args ++; /* skip the ? */
317 StrBufPlain(Hdr->PlainArgs,
319 StrLength(Hdr->HR.ReqLine) -
320 (Args - ChrPtr(Hdr->HR.ReqLine)));
321 StrBufCutAt(Hdr->HR.ReqLine, 0, Args - 1);
322 } /* don't parse them yet, maybe we don't even care... */
324 /* now lookup what we are going to do with this... */
325 /* skip first slash */
326 StrBufExtract_NextToken(Buf, Hdr->HR.ReqLine, &Pos, '/');
328 StrBufExtract_NextToken(Buf, Hdr->HR.ReqLine, &Pos, '/');
330 GetHash(HandlerHash, SKEY(Buf), &vHandler),
331 Hdr->HR.Handler = (WebcitHandler*) vHandler;
332 if (Hdr->HR.Handler == NULL)
335 * If the request is prefixed by "/webcit" then chop that off. This
336 * allows a front end web server to forward all /webcit requests to us
337 * while still using the same web server port for other things.
339 if ((Hdr->HR.Handler->Flags & URLNAMESPACE) != 0)
343 /* remove the handlername from the URL */
344 if ((Pos != NULL) && (Pos != StrBufNOTNULL)){
345 StrBufCutLeft(Hdr->HR.ReqLine,
346 Pos - ChrPtr(Hdr->HR.ReqLine));
349 if (Hdr->HR.Handler != NULL) {
350 if ((Hdr->HR.Handler->Flags & BOGUS) != 0)
352 Hdr->HR.DontNeedAuth = (
353 ((Hdr->HR.Handler->Flags & ISSTATIC) != 0) ||
354 ((Hdr->HR.Handler->Flags & ANONYMOUS) != 0)
358 Hdr->HR.DontNeedAuth = 1; /* Flat request? show him the login screen... */
364 int AnalyseHeaders(ParsedHttpHdrs *Hdr)
370 HashPos *at = GetNewHashPos(Hdr->HTTPHeaders, 0);
372 while (GetNextHashPos(Hdr->HTTPHeaders, at, &HKLen, &HashKey, &vHdr) &&
374 pHdr = (OneHttpHeader *)vHdr;
375 if (pHdr->HaveEvaluator)
376 pHdr->H(pHdr->Val, Hdr);
383 /*const char *nix(void *vptr) {return ChrPtr( (StrBuf*)vptr);}*/
386 * Read in the request
388 int ReadHTTPRequest (ParsedHttpHdrs *Hdr)
390 const char *pch, *pchs, *pche;
392 StrBuf *Line, *LastLine, *HeaderName;
397 HeaderName = NewStrBuf();
401 Line = NewStrBufPlain(NULL, SIZ / 4);
403 if (ClientGetLine(Hdr, Line) < 0) return 1;
405 if (StrLength(Line) == 0) {
410 Hdr->HTTPHeaders = NewHash(1, NULL);
411 pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader));
412 memset(pHdr, 0, sizeof(OneHttpHeader));
414 Put(Hdr->HTTPHeaders, HKEY("GET /"), pHdr, DestroyHttpHeaderHandler);
415 lprintf(9, "%s\n", ChrPtr(Line));
416 isbogus = ReadHttpSubject(Hdr, Line, HeaderName);
421 /* Do we need to Unfold? */
422 if ((LastLine != NULL) &&
423 (isspace(*ChrPtr(Line)))) {
424 pch = pchs = ChrPtr(Line);
425 pche = pchs + StrLength(Line);
426 while (isspace(*pch) && (pch < pche))
428 StrBufCutLeft(Line, pch - pchs);
429 StrBufAppendBuf(LastLine, Line, 0);
435 StrBufSanitizeAscii(Line, '§');
436 StrBufExtract_token(HeaderName, Line, 0, ':');
439 pch = pchs + StrLength(HeaderName) + 1;
440 pche = pchs + StrLength(Line);
441 while ((pch < pche) && isspace(*pch))
443 StrBufCutLeft(Line, pch - pchs);
445 StrBufUpCase(HeaderName);
447 pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader));
448 memset(pHdr, 0, sizeof(OneHttpHeader));
451 if (GetHash(HttpHeaderHandler, SKEY(HeaderName), &vF) &&
454 OneHttpHeader *FHdr = (OneHttpHeader*) vF;
456 pHdr->HaveEvaluator = 1;
458 Put(Hdr->HTTPHeaders, SKEY(HeaderName), pHdr, DestroyHttpHeaderHandler);
460 } while (Line != NULL);
462 FreeStrBuf(&HeaderName);
467 void OverrideRequest(ParsedHttpHdrs *Hdr, const char *Line, long len)
469 StrBuf *Buf = NewStrBuf();
471 if (Hdr->HR.ReqLine != NULL) {
472 FlushStrBuf(Hdr->HR.ReqLine);
473 StrBufPlain(Hdr->HR.ReqLine, Line, len);
476 Hdr->HR.ReqLine = NewStrBufPlain(Line, len);
478 ReadHttpSubject(Hdr, Hdr->HR.ReqLine, Buf);
486 * This loop gets called once for every HTTP connection made to WebCit. At
487 * this entry point we have an HTTP socket with a browser allegedly on the
488 * other end, but we have not yet bound to a WebCit session.
490 * The job of this function is to locate the correct session and bind to it,
491 * or create a session if necessary and bind to it, then run the WebCit
492 * transaction loop. Afterwards, we unbind from the session. When this
493 * function returns, the worker thread is then free to handle another
496 void context_loop(ParsedHttpHdrs *Hdr)
499 wcsession *TheSession;
500 struct timeval tx_start;
501 struct timeval tx_finish;
503 gettimeofday(&tx_start, NULL); /* start a stopwatch for performance timing */
506 * Find out what it is that the web browser is asking for
508 isbogus = ReadHTTPRequest(Hdr);
510 Hdr->HR.dav_depth = 32767; /* TODO: find a general way to have non-0 defaults */
512 isbogus = AnalyseHeaders(Hdr);
515 ((Hdr->HR.Handler != NULL) &&
516 ((Hdr->HR.Handler->Flags & BOGUS) != 0)))
520 Bogus = CreateSession(0, 1, NULL, Hdr, NULL);
524 /* How long did this transaction take? */
525 gettimeofday(&tx_finish, NULL);
527 lprintf(9, "HTTP: 404 [%ld.%06ld] %s %s \n",
528 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) / 1000000,
529 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) % 1000000,
530 ReqStrs[Hdr->HR.eReqType],
531 ChrPtr(Hdr->this_page)
533 session_detach_modules(Bogus);
534 session_destroy_modules(&Bogus);
538 if ((Hdr->HR.Handler != NULL) && ((Hdr->HR.Handler->Flags & ISSTATIC) != 0))
541 Static = CreateSession(0, 1, NULL, Hdr, NULL);
543 Hdr->HR.Handler->F();
545 /* How long did this transaction take? */
546 gettimeofday(&tx_finish, NULL);
549 if ((Hdr->HR.Handler != NULL) ||
550 ((Hdr->HR.Handler->Flags & LOGCHATTY) == 0))
552 lprintf(9, "HTTP: 200 [%ld.%06ld] %s %s \n",
553 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) / 1000000,
554 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) % 1000000,
555 ReqStrs[Hdr->HR.eReqType],
556 ChrPtr(Hdr->this_page)
558 session_detach_modules(Static);
559 session_destroy_modules(&Static);
563 if (Hdr->HR.got_auth == AUTH_BASIC) {
568 * See if there's an existing session open with the desired ID or user/pass
570 TheSession = FindSession(&SessionList, Hdr, &SessionListMutex);
573 * Create a new session if we have to
575 if (TheSession == NULL) {
576 TheSession = CreateSession(1, 0, &SessionList, Hdr, &SessionListMutex);
578 if ((StrLength(Hdr->c_username) == 0) && (!Hdr->HR.DontNeedAuth)) {
580 if ((Hdr->HR.Handler != NULL) &&
581 (XHTTP_COMMANDS & Hdr->HR.Handler->Flags) == XHTTP_COMMANDS) {
582 OverrideRequest(Hdr, HKEY("GET /401 HTTP/1.0"));
583 Hdr->HR.prohibit_caching = 1;
586 OverrideRequest(Hdr, HKEY("GET /static/nocookies.html?force_close_session=yes HTTP/1.0"));
587 Hdr->HR.prohibit_caching = 1;
591 if (StrLength(Hdr->c_language) > 0) {
592 lprintf(9, "Session cookie requests language '%s'\n", ChrPtr(Hdr->c_language));
593 set_selected_language(ChrPtr(Hdr->c_language));
594 go_selected_language();
599 * A future improvement might be to check the session integrity
600 * at this point before continuing.
604 * Bind to the session and perform the transaction
606 pthread_mutex_lock(&TheSession->SessionMutex); /* bind */
607 pthread_setspecific(MyConKey, (void *)TheSession);
609 TheSession->lastreq = time(NULL); /* log */
610 TheSession->Hdr = Hdr;
612 session_attach_modules(TheSession);
613 session_loop(); /* do transaction */
616 /* How long did this transaction take? */
617 gettimeofday(&tx_finish, NULL);
621 if ((Hdr->HR.Handler != NULL) &&
622 ((Hdr->HR.Handler->Flags & LOGCHATTY) == 0))
624 lprintf(9, "HTTP: 200 [%ld.%06ld] %s %s \n",
625 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) / 1000000,
626 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) % 1000000,
627 ReqStrs[Hdr->HR.eReqType],
628 ChrPtr(Hdr->this_page)
631 session_detach_modules(TheSession);
633 TheSession->Hdr = NULL;
634 pthread_mutex_unlock(&TheSession->SessionMutex); /* unbind */
637 void tmplput_nonce(StrBuf *Target, WCTemplputParams *TP)
640 StrBufAppendPrintf(Target, "%ld",
641 (WCC != NULL)? WCC->nonce:0);
644 void tmplput_current_user(StrBuf *Target, WCTemplputParams *TP)
646 StrBufAppendTemplate(Target, TP, WC->wc_fullname, 0);
649 void Header_HandleContentLength(StrBuf *Line, ParsedHttpHdrs *hdr)
651 hdr->HR.ContentLength = StrToi(Line);
654 void Header_HandleContentType(StrBuf *Line, ParsedHttpHdrs *hdr)
656 hdr->HR.ContentType = Line;
659 void Header_HandleUserAgent(StrBuf *Line, ParsedHttpHdrs *hdr)
661 hdr->HR.user_agent = Line;
663 /* TODO: do this later on session creating
664 if ((WCC->is_mobile < 0) && is_mobile_ua(&buf[12])) {
675 void Header_HandleHost(StrBuf *Line, ParsedHttpHdrs *hdr)
677 if ((follow_xff) && (hdr->HR.http_host != NULL))
680 hdr->HR.http_host = Line;
683 void Header_HandleXFFHost(StrBuf *Line, ParsedHttpHdrs *hdr)
686 hdr->HR.http_host = Line;
690 void Header_HandleXFF(StrBuf *Line, ParsedHttpHdrs *hdr)
692 hdr->HR.browser_host = Line;
694 while (StrBufNum_tokens(hdr->HR.browser_host, ',') > 1) {
695 StrBufRemove_token(hdr->HR.browser_host, 0, ',');
697 StrBufTrim(hdr->HR.browser_host);
700 void Header_HandleIfModSince(StrBuf *Line, ParsedHttpHdrs *hdr)
702 hdr->HR.if_modified_since = httpdate_to_timestamp(Line);
705 void Header_HandleAcceptEncoding(StrBuf *Line, ParsedHttpHdrs *hdr)
710 if (strstr(&ChrPtr(Line)[16], "gzip")) {
714 const char *ReqStrs[eNONE] = {
727 ServerStartModule_CONTEXT
731 HttpReqTypes = NewHash(1, NULL);
732 HttpHeaderHandler = NewHash(1, NULL);
734 v = malloc(sizeof(long));
736 Put(HttpReqTypes, HKEY("GET"), v, NULL);
738 v = malloc(sizeof(long));
740 Put(HttpReqTypes, HKEY("POST"), v, NULL);
742 v = malloc(sizeof(long));
744 Put(HttpReqTypes, HKEY("OPTIONS"), v, NULL);
746 v = malloc(sizeof(long));
748 Put(HttpReqTypes, HKEY("PROPFIND"), v, NULL);
750 v = malloc(sizeof(long));
752 Put(HttpReqTypes, HKEY("PUT"), v, NULL);
754 v = malloc(sizeof(long));
756 Put(HttpReqTypes, HKEY("DELETE"), v, NULL);
758 v = malloc(sizeof(long));
760 Put(HttpReqTypes, HKEY("HEAD"), v, NULL);
762 v = malloc(sizeof(long));
764 Put(HttpReqTypes, HKEY("MOVE"), v, NULL);
766 v = malloc(sizeof(long));
768 Put(HttpReqTypes, HKEY("COPY"), v, NULL);
772 ServerShutdownModule_CONTEXT
775 DeleteHash(&HttpReqTypes);
776 DeleteHash(&HttpHeaderHandler);
779 void RegisterHeaderHandler(const char *Name, long Len, Header_Evaluator F)
782 pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader));
783 memset(pHdr, 0, sizeof(OneHttpHeader));
785 Put(HttpHeaderHandler, Name, Len, pHdr, DestroyHttpHeaderHandler);
793 RegisterHeaderHandler(HKEY("CONTENT-LENGTH"), Header_HandleContentLength);
794 RegisterHeaderHandler(HKEY("CONTENT-TYPE"), Header_HandleContentType);
795 RegisterHeaderHandler(HKEY("USER-AGENT"), Header_HandleUserAgent);
796 RegisterHeaderHandler(HKEY("X-FORWARDED-HOST"), Header_HandleXFFHost); /* Apache way... */
797 RegisterHeaderHandler(HKEY("X-REAL-IP"), Header_HandleXFFHost); /* NGinX way... */
798 RegisterHeaderHandler(HKEY("HOST"), Header_HandleHost);
799 RegisterHeaderHandler(HKEY("X-FORWARDED-FOR"), Header_HandleXFF);
800 RegisterHeaderHandler(HKEY("ACCEPT-ENCODING"), Header_HandleAcceptEncoding);
801 RegisterHeaderHandler(HKEY("IF-MODIFIED-SINCE"), Header_HandleIfModSince);
803 RegisterNamespace("CURRENT_USER", 0, 1, tmplput_current_user, NULL, CTX_NONE);
804 RegisterNamespace("NONCE", 0, 0, tmplput_nonce, NULL, 0);
806 WebcitAddUrlHandler(HKEY("404"), "", 0, do_404, ANONYMOUS|COOKIEUNNEEDED);
808 * Look for commonly-found probes of malware such as worms, viruses, trojans, and Microsoft Office.
809 * Short-circuit these requests so we don't have to send them through the full processing loop.
811 WebcitAddUrlHandler(HKEY("scripts"), "", 0, do_404, ANONYMOUS|BOGUS); /* /root.exe - Worms and trojans and viruses, oh my! */
812 WebcitAddUrlHandler(HKEY("c"), "", 0, do_404, ANONYMOUS|BOGUS); /* /winnt */
813 WebcitAddUrlHandler(HKEY("MSADC"), "", 0, do_404, ANONYMOUS|BOGUS);
814 WebcitAddUrlHandler(HKEY("_vti"), "", 0, do_404, ANONYMOUS|BOGUS); /* Broken Microsoft DAV implementation */
815 WebcitAddUrlHandler(HKEY("MSOffice"), "", 0, do_404, ANONYMOUS|BOGUS); /* Stoopid MSOffice thinks everyone is IIS */
816 WebcitAddUrlHandler(HKEY("nonexistenshit"), "", 0, do_404, ANONYMOUS|BOGUS); /* Exploit found in the wild January 2009 */
821 HttpNewModule_CONTEXT
822 (ParsedHttpHdrs *httpreq)
824 httpreq->PlainArgs = NewStrBufPlain(NULL, SIZ);
825 httpreq->this_page = NewStrBufPlain(NULL, SIZ);
829 HttpDetachModule_CONTEXT
830 (ParsedHttpHdrs *httpreq)
832 FlushStrBuf(httpreq->PlainArgs);
833 FlushStrBuf(httpreq->this_page);
834 FlushStrBuf(httpreq->PlainArgs);
835 DeleteHash(&httpreq->HTTPHeaders);
836 memset(&httpreq->HR, 0, sizeof(HdrRefs));
840 HttpDestroyModule_CONTEXT
841 (ParsedHttpHdrs *httpreq)
843 FreeStrBuf(&httpreq->this_page);
844 FreeStrBuf(&httpreq->PlainArgs);
845 FreeStrBuf(&httpreq->this_page);
846 FreeStrBuf(&httpreq->PlainArgs);
847 DeleteHash(&httpreq->HTTPHeaders);