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.
12 #include "webserver.h"
13 #include "modules_init.h"
15 /* Only one thread may manipulate SessionList at a time... */
16 pthread_mutex_t SessionListMutex;
18 wcsession *SessionList = NULL; /**< our sessions ????*/
20 pthread_key_t MyConKey; /**< TSD key for MySession() */
21 HashList *HttpReqTypes = NULL;
22 HashList *HttpHeaderHandler = NULL;
23 extern HashList *HandlerHash;
25 void DestroyHttpHeaderHandler(void *V)
28 pHdr = (OneHttpHeader*) V;
29 FreeStrBuf(&pHdr->Val);
33 void shutdown_sessions(void)
37 for (sptr = SessionList; sptr != NULL; sptr = sptr->next) {
42 void do_housekeeping(void)
45 wcsession *sessions_to_kill = NULL;
47 static int num_threads = MIN_WORKER_THREADS;
50 * Lock the session list, moving any candidates for euthanasia into
53 pthread_mutex_lock(&SessionListMutex);
55 for (sptr = SessionList; sptr != NULL; sptr = sptr->next) {
58 /** Kill idle sessions */
59 if ((time(NULL) - (sptr->lastreq)) >
60 (time_t) WEBCIT_TIMEOUT) {
64 /** Remove sessions flagged for kill */
67 /** remove session from linked list */
68 if (sptr == SessionList) {
69 SessionList = SessionList->next;
71 else for (ss=SessionList;ss!=NULL;ss=ss->next) {
72 if (ss->next == sptr) {
73 ss->next = ss->next->next;
77 sptr->next = sessions_to_kill;
78 sessions_to_kill = sptr;
81 pthread_mutex_unlock(&SessionListMutex);
84 * Now free up and destroy the culled sessions.
86 while (sessions_to_kill != NULL) {
87 lprintf(3, "Destroying session %d\n", sessions_to_kill->wc_session);
88 pthread_mutex_lock(&sessions_to_kill->SessionMutex);
89 pthread_mutex_unlock(&sessions_to_kill->SessionMutex);
90 sptr = sessions_to_kill->next;
92 session_destroy_modules(&sessions_to_kill);
93 sessions_to_kill = sptr;
98 * If there are more sessions than threads, then we should spawn
99 * more threads ... up to a predefined maximum.
101 while ( (num_sessions > num_threads)
102 && (num_threads <= MAX_WORKER_THREADS) ) {
103 spawn_another_worker_thread();
105 lprintf(3, "There are %d sessions and %d threads active.\n",
106 num_sessions, num_threads);
112 * Wake up occasionally and clean house
114 void housekeeping_loop(void)
117 sleeeeeeeeeep(HOUSEKEEPING);
124 * Create a Session id
125 * Generate a unique WebCit session ID (which is not the same thing as the
126 * Citadel session ID).
128 int GenerateSessionID(void)
130 static int seq = (-1);
133 seq = (int) time(NULL);
139 wcsession *FindSession(wcsession **wclist, ParsedHttpHdrs *Hdr, pthread_mutex_t *ListMutex)
141 wcsession *sptr = NULL;
142 wcsession *TheSession = NULL;
144 if (Hdr->HR.got_auth == AUTH_BASIC) {
148 pthread_mutex_lock(ListMutex);
149 for (sptr = *wclist; ((sptr != NULL) && (TheSession == NULL)); sptr = sptr->next) {
151 /* If HTTP-AUTH, look for a session with matching credentials */
152 switch (Hdr->HR.got_auth)
155 if ( (Hdr->HR.SessionKey != sptr->SessionKey))
157 if ((!strcasecmp(ChrPtr(Hdr->c_username), ChrPtr(sptr->wc_username))) &&
158 (!strcasecmp(ChrPtr(Hdr->c_password), ChrPtr(sptr->wc_password))) ) {
163 /* If cookie-session, look for a session with matching session ID */
164 if ( (Hdr->HR.desired_session != 0) &&
165 (sptr->wc_session == Hdr->HR.desired_session)) {
173 pthread_mutex_unlock(ListMutex);
177 wcsession *CreateSession(int Lockable, wcsession **wclist, ParsedHttpHdrs *Hdr, pthread_mutex_t *ListMutex)
179 wcsession *TheSession;
180 lprintf(3, "Creating a new session\n");
181 TheSession = (wcsession *) malloc(sizeof(wcsession));
182 memset(TheSession, 0, sizeof(wcsession));
183 TheSession->Hdr = Hdr;
184 TheSession->SessionKey = Hdr->HR.SessionKey;
185 TheSession->serv_sock = (-1);
186 TheSession->chat_sock = (-1);
187 TheSession->is_mobile = -1;
189 pthread_setspecific(MyConKey, (void *)TheSession);
191 /* If we're recreating a session that expired, it's best to give it the same
192 * session number that it had before. The client browser ought to pick up
193 * the new session number and start using it, but in some rare situations it
194 * doesn't, and that's a Bad Thing because it causes lots of spurious sessions
197 if (Hdr->HR.desired_session == 0) {
198 TheSession->wc_session = GenerateSessionID();
201 TheSession->wc_session = Hdr->HR.desired_session;
204 session_new_modules(TheSession);
207 pthread_mutex_init(&TheSession->SessionMutex, NULL);
209 if (ListMutex != NULL)
210 pthread_mutex_lock(ListMutex);
212 if (wclist != NULL) {
213 TheSession->nonce = rand();
214 TheSession->next = *wclist;
215 *wclist = TheSession;
217 if (ListMutex != NULL)
218 pthread_mutex_unlock(ListMutex);
225 * \brief Detects a 'mobile' user agent
227 int is_mobile_ua(char *user_agent) {
228 if (strstr(user_agent,"iPhone OS") != NULL) {
230 } else if (strstr(user_agent,"Windows CE") != NULL) {
232 } else if (strstr(user_agent,"SymbianOS") != NULL) {
234 } else if (strstr(user_agent, "Opera Mobi") != NULL) {
236 } else if (strstr(user_agent, "Firefox/2.0.0 Opera 9.51 Beta") != NULL) {
237 /* For some reason a new install of Opera 9.51beta decided to spoof. */
243 /* If it's a "force 404" situation then display the error and bail. */
246 hprintf("HTTP/1.1 404 Not found\r\n");
247 hprintf("Content-Type: text/plain\r\n");
248 wprintf("Not found\r\n");
252 int ReadHttpSubject(ParsedHttpHdrs *Hdr, StrBuf *Line, StrBuf *Buf)
255 void *vLine, *vHandler;
256 const char *Pos = NULL;
259 Hdr->HR.ReqLine = Line;
260 /* The requesttype... GET, POST... */
261 StrBufExtract_token(Buf, Hdr->HR.ReqLine, 0, ' ');
262 if (GetHash(HttpReqTypes, SKEY(Buf), &vLine) &&
265 Hdr->HR.eReqType = *(long*)vLine;
268 Hdr->HR.eReqType = eGET;
271 StrBufCutLeft(Hdr->HR.ReqLine, StrLength(Buf) + 1);
273 /* the HTTP Version... */
274 StrBufExtract_token(Buf, Hdr->HR.ReqLine, 1, ' ');
275 StrBufCutRight(Hdr->HR.ReqLine, StrLength(Buf) + 1);
277 if (StrLength(Buf) == 0) {
278 Hdr->HR.eReqType = eGET;
282 StrBufAppendBuf(Hdr->this_page, Hdr->HR.ReqLine, 0);
283 /* chop Filename / query arguments */
284 Args = strchr(ChrPtr(Hdr->HR.ReqLine), '?');
285 if (Args == NULL) /* whe're not that picky about params... TODO: this will spoil '&' in filenames.*/
286 Args = strchr(ChrPtr(Hdr->HR.ReqLine), '&');
288 Args ++; /* skip the ? */
289 StrBufPlain(Hdr->PlainArgs,
291 StrLength(Hdr->HR.ReqLine) -
292 (Args - ChrPtr(Hdr->HR.ReqLine)));
293 StrBufCutAt(Hdr->HR.ReqLine, 0, Args - 1);
294 } /* don't parse them yet, maybe we don't even care... */
296 /* now lookup what we are going to do with this... */
297 /* skip first slash */
298 StrBufExtract_NextToken(Buf, Hdr->HR.ReqLine, &Pos, '/');
300 StrBufExtract_NextToken(Buf, Hdr->HR.ReqLine, &Pos, '/');
302 GetHash(HandlerHash, SKEY(Buf), &vHandler),
303 Hdr->HR.Handler = (WebcitHandler*) vHandler;
304 if (Hdr->HR.Handler == NULL)
307 * If the request is prefixed by "/webcit" then chop that off. This
308 * allows a front end web server to forward all /webcit requests to us
309 * while still using the same web server port for other things.
311 if ((Hdr->HR.Handler->Flags & URLNAMESPACE) != 0)
315 /* remove the handlername from the URL */
317 StrBufCutLeft(Hdr->HR.ReqLine,
318 Pos - ChrPtr(Hdr->HR.ReqLine));
321 if (Hdr->HR.Handler != NULL) {
322 if ((Hdr->HR.Handler->Flags & BOGUS) != 0)
324 Hdr->HR.DontNeedAuth = (
325 ((Hdr->HR.Handler->Flags & ISSTATIC) != 0) ||
326 ((Hdr->HR.Handler->Flags & ANONYMOUS) != 0)
330 Hdr->HR.DontNeedAuth = 1; /* Flat request? show him the login screen... */
336 int AnalyseHeaders(ParsedHttpHdrs *Hdr)
342 HashPos *at = GetNewHashPos(Hdr->HTTPHeaders, 0);
344 while (GetNextHashPos(Hdr->HTTPHeaders, at, &HKLen, &HashKey, &vHdr) &&
346 pHdr = (OneHttpHeader *)vHdr;
347 if (pHdr->HaveEvaluator)
348 pHdr->H(pHdr->Val, Hdr);
355 /*const char *nix(void *vptr) {return ChrPtr( (StrBuf*)vptr);}*/
358 * Read in the request
360 int ReadHTTPRequest (ParsedHttpHdrs *Hdr)
362 const char *pch, *pchs, *pche;
364 StrBuf *Line, *LastLine, *HeaderName;
369 HeaderName = NewStrBuf();
373 Line = NewStrBufPlain(NULL, SIZ / 4);
375 if (ClientGetLine(Hdr, Line) < 0) return 1;
377 if (StrLength(Line) == 0) {
382 Hdr->HTTPHeaders = NewHash(1, NULL);
383 pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader));
384 memset(pHdr, 0, sizeof(OneHttpHeader));
386 Put(Hdr->HTTPHeaders, HKEY("GET /"), pHdr, DestroyHttpHeaderHandler);
387 lprintf(9, "%s\n", ChrPtr(Line));
388 isbogus = ReadHttpSubject(Hdr, Line, HeaderName);
393 /* Do we need to Unfold? */
394 if ((LastLine != NULL) &&
395 (isspace(*ChrPtr(Line)))) {
396 pch = pchs = ChrPtr(Line);
397 pche = pchs + StrLength(Line);
398 while (isspace(*pch) && (pch < pche))
400 StrBufCutLeft(Line, pch - pchs);
401 StrBufAppendBuf(LastLine, Line, 0);
407 StrBufSanitizeAscii(Line, '§');
408 StrBufExtract_token(HeaderName, Line, 0, ':');
411 pch = pchs + StrLength(HeaderName) + 1;
412 pche = pchs + StrLength(Line);
413 while (isspace(*pch) && (pch < pche))
415 StrBufCutLeft(Line, pch - pchs);
417 StrBufUpCase(HeaderName);
419 pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader));
420 memset(pHdr, 0, sizeof(OneHttpHeader));
423 if (GetHash(HttpHeaderHandler, SKEY(HeaderName), &vF) &&
426 OneHttpHeader *FHdr = (OneHttpHeader*) vF;
428 pHdr->HaveEvaluator = 1;
430 Put(Hdr->HTTPHeaders, SKEY(HeaderName), pHdr, DestroyHttpHeaderHandler);
432 } while (Line != NULL);
434 FreeStrBuf(&HeaderName);
439 void OverrideRequest(ParsedHttpHdrs *Hdr, const char *Line, long len)
441 StrBuf *Buf = NewStrBuf();
443 FlushStrBuf(Hdr->HR.ReqLine);
444 StrBufPlain(Hdr->HR.ReqLine, Line, len);
445 ReadHttpSubject(Hdr, Hdr->HR.ReqLine, Buf);
453 * This loop gets called once for every HTTP connection made to WebCit. At
454 * this entry point we have an HTTP socket with a browser allegedly on the
455 * other end, but we have not yet bound to a WebCit session.
457 * The job of this function is to locate the correct session and bind to it,
458 * or create a session if necessary and bind to it, then run the WebCit
459 * transaction loop. Afterwards, we unbind from the session. When this
460 * function returns, the worker thread is then free to handle another
463 void context_loop(ParsedHttpHdrs *Hdr)
466 wcsession *TheSession;
467 struct timeval tx_start;
468 struct timeval tx_finish;
470 gettimeofday(&tx_start, NULL); /* start a stopwatch for performance timing */
473 * Find out what it is that the web browser is asking for
475 isbogus = ReadHTTPRequest(Hdr);
478 isbogus = AnalyseHeaders(Hdr);
481 ((Hdr->HR.Handler != NULL) &&
482 ((Hdr->HR.Handler->Flags & BOGUS) != 0)))
486 Bogus = CreateSession(0, NULL, Hdr, NULL);
490 lprintf(9, "HTTP: 404 [%ld.%06ld] %s %s \n",
491 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) / 1000000,
492 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) % 1000000,
493 ReqStrs[Hdr->HR.eReqType],
494 ChrPtr(Hdr->this_page)
496 session_detach_modules(Bogus);
497 session_destroy_modules(&Bogus);
501 if ((Hdr->HR.Handler != NULL) && ((Hdr->HR.Handler->Flags & ISSTATIC) != 0))
504 Static = CreateSession(0, NULL, Hdr, NULL);
506 Hdr->HR.Handler->F();
508 /* How long did this transaction take? */
509 gettimeofday(&tx_finish, NULL);
512 if ((Hdr->HR.Handler != NULL) ||
513 ((Hdr->HR.Handler->Flags & LOGCHATTY) == 0))
515 lprintf(9, "HTTP: 200 [%ld.%06ld] %s %s \n",
516 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) / 1000000,
517 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) % 1000000,
518 ReqStrs[Hdr->HR.eReqType],
519 ChrPtr(Hdr->this_page)
521 session_detach_modules(Static);
522 session_destroy_modules(&Static);
526 if (Hdr->HR.got_auth == AUTH_BASIC) {
531 * See if there's an existing session open with the desired ID or user/pass
533 TheSession = FindSession(&SessionList, Hdr, &SessionListMutex);
536 * Create a new session if we have to
538 if (TheSession == NULL) {
539 TheSession = CreateSession(1, &SessionList, Hdr, &SessionListMutex);
541 if ((StrLength(Hdr->c_username) == 0) && (!Hdr->HR.DontNeedAuth)) {
543 if ((Hdr->HR.Handler != NULL) &&
544 (XHTTP_COMMANDS & Hdr->HR.Handler->Flags) == XHTTP_COMMANDS) {
545 OverrideRequest(Hdr, HKEY("GET /401 HTTP/1.0"));
546 Hdr->HR.prohibit_caching = 1;
549 OverrideRequest(Hdr, HKEY("GET /static/nocookies.html?force_close_session=yes HTTP/1.0"));
550 Hdr->HR.prohibit_caching = 1;
554 if (StrLength(Hdr->c_language) > 0) {
555 lprintf(9, "Session cookie requests language '%s'\n", ChrPtr(Hdr->c_language));
556 set_selected_language(ChrPtr(Hdr->c_language));
557 go_selected_language();
562 * A future improvement might be to check the session integrity
563 * at this point before continuing.
567 * Bind to the session and perform the transaction
569 pthread_mutex_lock(&TheSession->SessionMutex); /* bind */
570 pthread_setspecific(MyConKey, (void *)TheSession);
572 TheSession->lastreq = time(NULL); /* log */
573 TheSession->Hdr = Hdr;
575 session_attach_modules(TheSession);
576 session_loop(); /* do transaction */
579 /* How long did this transaction take? */
580 gettimeofday(&tx_finish, NULL);
584 if ((Hdr->HR.Handler != NULL) &&
585 ((Hdr->HR.Handler->Flags & LOGCHATTY) == 0))
587 lprintf(9, "HTTP: 200 [%ld.%06ld] %s %s \n",
588 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) / 1000000,
589 ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) % 1000000,
590 ReqStrs[Hdr->HR.eReqType],
591 ChrPtr(Hdr->this_page)
594 session_detach_modules(TheSession);
596 TheSession->Hdr = NULL;
597 pthread_mutex_unlock(&TheSession->SessionMutex); /* unbind */
600 void tmplput_nonce(StrBuf *Target, WCTemplputParams *TP)
603 StrBufAppendPrintf(Target, "%ld",
604 (WCC != NULL)? WCC->nonce:0);
607 void tmplput_current_user(StrBuf *Target, WCTemplputParams *TP)
609 StrBufAppendTemplate(Target, TP, WC->wc_fullname, 0);
612 void tmplput_current_room(StrBuf *Target, WCTemplputParams *TP)
614 StrBufAppendTemplate(Target, TP, WC->wc_roomname, 0);
617 void Header_HandleContentLength(StrBuf *Line, ParsedHttpHdrs *hdr)
619 hdr->HR.ContentLength = StrToi(Line);
622 void Header_HandleContentType(StrBuf *Line, ParsedHttpHdrs *hdr)
624 hdr->HR.ContentType = Line;
627 void Header_HandleUserAgent(StrBuf *Line, ParsedHttpHdrs *hdr)
629 hdr->HR.user_agent = Line;
631 /* TODO: do this later on session creating
632 if ((WCC->is_mobile < 0) && is_mobile_ua(&buf[12])) {
643 void Header_HandleHost(StrBuf *Line, ParsedHttpHdrs *hdr)
645 if ((follow_xff) && (hdr->HR.http_host != NULL))
648 hdr->HR.http_host = Line;
651 void Header_HandleXFFHost(StrBuf *Line, ParsedHttpHdrs *hdr)
654 hdr->HR.http_host = Line;
658 void Header_HandleXFF(StrBuf *Line, ParsedHttpHdrs *hdr)
660 hdr->HR.browser_host = Line;
662 while (StrBufNum_tokens(hdr->HR.browser_host, ',') > 1) {
663 StrBufRemove_token(hdr->HR.browser_host, 0, ',');
665 StrBufTrim(hdr->HR.browser_host);
668 void Header_HandleIfModSince(StrBuf *Line, ParsedHttpHdrs *hdr)
670 hdr->HR.if_modified_since = httpdate_to_timestamp(Line);
673 void Header_HandleAcceptEncoding(StrBuf *Line, ParsedHttpHdrs *hdr)
678 if (strstr(&ChrPtr(Line)[16], "gzip")) {
682 const char *ReqStrs[eNONE] = {
695 ServerStartModule_CONTEXT
699 HttpReqTypes = NewHash(1, NULL);
700 HttpHeaderHandler = NewHash(1, NULL);
702 v = malloc(sizeof(long));
704 Put(HttpReqTypes, HKEY("GET"), v, NULL);
706 v = malloc(sizeof(long));
708 Put(HttpReqTypes, HKEY("POST"), v, NULL);
710 v = malloc(sizeof(long));
712 Put(HttpReqTypes, HKEY("OPTIONS"), v, NULL);
714 v = malloc(sizeof(long));
716 Put(HttpReqTypes, HKEY("PROPFIND"), v, NULL);
718 v = malloc(sizeof(long));
720 Put(HttpReqTypes, HKEY("PUT"), v, NULL);
722 v = malloc(sizeof(long));
724 Put(HttpReqTypes, HKEY("DELETE"), v, NULL);
726 v = malloc(sizeof(long));
728 Put(HttpReqTypes, HKEY("HEAD"), v, NULL);
730 v = malloc(sizeof(long));
732 Put(HttpReqTypes, HKEY("MOVE"), v, NULL);
734 v = malloc(sizeof(long));
736 Put(HttpReqTypes, HKEY("COPY"), v, NULL);
740 ServerShutdownModule_CONTEXT
743 DeleteHash(&HttpReqTypes);
744 DeleteHash(&HttpHeaderHandler);
747 void RegisterHeaderHandler(const char *Name, long Len, Header_Evaluator F)
750 pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader));
751 memset(pHdr, 0, sizeof(OneHttpHeader));
753 Put(HttpHeaderHandler, Name, Len, pHdr, DestroyHttpHeaderHandler);
761 RegisterHeaderHandler(HKEY("CONTENT-LENGTH"), Header_HandleContentLength);
762 RegisterHeaderHandler(HKEY("CONTENT-TYPE"), Header_HandleContentType);
763 RegisterHeaderHandler(HKEY("USER-AGENT"), Header_HandleUserAgent);
764 RegisterHeaderHandler(HKEY("X-FORWARDED-HOST"), Header_HandleXFFHost);
765 RegisterHeaderHandler(HKEY("HOST"), Header_HandleHost);
766 RegisterHeaderHandler(HKEY("X-FORWARDED-FOR"), Header_HandleXFF);
767 RegisterHeaderHandler(HKEY("ACCEPT-ENCODING"), Header_HandleAcceptEncoding);
768 RegisterHeaderHandler(HKEY("IF-MODIFIED-SINCE"), Header_HandleIfModSince);
770 RegisterNamespace("CURRENT_USER", 0, 1, tmplput_current_user, CTX_NONE);
771 RegisterNamespace("CURRENT_ROOM", 0, 1, tmplput_current_room, CTX_NONE);
772 RegisterNamespace("NONCE", 0, 0, tmplput_nonce, 0);
774 WebcitAddUrlHandler(HKEY("404"), do_404, ANONYMOUS|COOKIEUNNEEDED);
776 * Look for commonly-found probes of malware such as worms, viruses, trojans, and Microsoft Office.
777 * Short-circuit these requests so we don't have to send them through the full processing loop.
779 WebcitAddUrlHandler(HKEY("scripts"), do_404, ANONYMOUS|BOGUS); /* /root.exe - Worms and trojans and viruses, oh my! */
780 WebcitAddUrlHandler(HKEY("c"), do_404, ANONYMOUS|BOGUS); /* /winnt */
781 WebcitAddUrlHandler(HKEY("MSADC"), do_404, ANONYMOUS|BOGUS);
782 WebcitAddUrlHandler(HKEY("_vti"), do_404, ANONYMOUS|BOGUS); /* Broken Microsoft DAV implementation */
783 WebcitAddUrlHandler(HKEY("MSOffice"), do_404, ANONYMOUS|BOGUS); /* Stoopid MSOffice thinks everyone is IIS */
784 WebcitAddUrlHandler(HKEY("nonexistenshit"), do_404, ANONYMOUS|BOGUS); /* Exploit found in the wild January 2009 */
789 HttpNewModule_CONTEXT
790 (ParsedHttpHdrs *httpreq)
792 httpreq->PlainArgs = NewStrBufPlain(NULL, SIZ);
793 httpreq->this_page = NewStrBufPlain(NULL, SIZ);
797 HttpDetachModule_CONTEXT
798 (ParsedHttpHdrs *httpreq)
800 FlushStrBuf(httpreq->PlainArgs);
801 FlushStrBuf(httpreq->this_page);
802 FlushStrBuf(httpreq->PlainArgs);
803 DeleteHash(&httpreq->HTTPHeaders);
804 memset(&httpreq->HR, 0, sizeof(HdrRefs));
808 HttpDestroyModule_CONTEXT
809 (ParsedHttpHdrs *httpreq)
811 FreeStrBuf(&httpreq->this_page);
812 FreeStrBuf(&httpreq->PlainArgs);
813 FreeStrBuf(&httpreq->this_page);
814 FreeStrBuf(&httpreq->PlainArgs);
815 DeleteHash(&httpreq->HTTPHeaders);