X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=webcit%2Fcontext_loop.c;h=db6fd289a5afce695f9413237901a664de60e45b;hb=1f494963f66495189901c38c84cbc6d6b3e9f952;hp=032c82a603399aa453a5b8d07e04af46054c54bb;hpb=435faa62a4b8f943a48cfe05593b379399e4a073;p=citadel.git diff --git a/webcit/context_loop.c b/webcit/context_loop.c index 032c82a60..db6fd289a 100644 --- a/webcit/context_loop.c +++ b/webcit/context_loop.c @@ -10,33 +10,29 @@ #include "webcit.h" #include "webserver.h" +#include "modules_init.h" /* Only one thread may manipulate SessionList at a time... */ pthread_mutex_t SessionListMutex; -struct wcsession *SessionList = NULL; /**< our sessions ????*/ +wcsession *SessionList = NULL; /**< our sessions ????*/ pthread_key_t MyConKey; /**< TSD key for MySession() */ +HashList *HttpReqTypes = NULL; +HashList *HttpHeaderHandler = NULL; +extern HashList *HandlerHash; - -/* - * free the memory used for viewing atachments - */ -void free_attachments(struct wcsession *sess) { - struct wc_attachment *att; - - while (sess->first_attachment != NULL) { - att = sess->first_attachment; - sess->first_attachment = sess->first_attachment->next; - free(att->data); - free(att); - } +void DestroyHttpHeaderHandler(void *V) +{ + OneHttpHeader *pHdr; + pHdr = (OneHttpHeader*) V; + FreeStrBuf(&pHdr->Val); + free(pHdr); } - void shutdown_sessions(void) { - struct wcsession *sptr; + wcsession *sptr; for (sptr = SessionList; sptr != NULL; sptr = sptr->next) { sptr->killthis = 1; @@ -45,8 +41,8 @@ void shutdown_sessions(void) void do_housekeeping(void) { - struct wcsession *sptr, *ss; - struct wcsession *sessions_to_kill = NULL; + wcsession *sptr, *ss; + wcsession *sessions_to_kill = NULL; int num_sessions = 0; static int num_threads = MIN_WORKER_THREADS; @@ -90,20 +86,10 @@ void do_housekeeping(void) while (sessions_to_kill != NULL) { lprintf(3, "Destroying session %d\n", sessions_to_kill->wc_session); pthread_mutex_lock(&sessions_to_kill->SessionMutex); - 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); - } - free_attachments(sessions_to_kill); - free_march_list(sessions_to_kill); - clear_substs(sessions_to_kill); pthread_mutex_unlock(&sessions_to_kill->SessionMutex); sptr = sessions_to_kill->next; - free(sessions_to_kill); + + session_destroy_modules(&sessions_to_kill); sessions_to_kill = sptr; --num_sessions; } @@ -122,8 +108,8 @@ void do_housekeeping(void) } -/** - * \brief Wake up occasionally and clean house +/* + * Wake up occasionally and clean house */ void housekeeping_loop(void) { @@ -134,13 +120,10 @@ void housekeeping_loop(void) } -/** - * \brief Create a Session id +/* + * Create a Session id * Generate a unique WebCit session ID (which is not the same thing as the * Citadel session ID). - * - * \todo FIXME ... ensure that session number is truly unique - * */ int GenerateSessionID(void) { @@ -154,43 +137,6 @@ int GenerateSessionID(void) } -/* - * Collapse multiple cookies on one line - */ -int req_gets(int sock, char *buf, char *hold) -{ - int a, b; - - if (IsEmptyStr(hold)) { - strcpy(buf, ""); - a = client_getln(sock, buf, SIZ); - if (a<1) return(-1); - } else { - safestrncpy(buf, hold, SIZ); - } - strcpy(hold, ""); - - if (!strncasecmp(buf, "Cookie: ", 8)) { - int len; - len = strlen(buf); - for (a = 0; a < len; ++a) - if (buf[a] == ';') { - // we don't refresh len, because of we - // only exit from here. - sprintf(hold, "Cookie: %s", &buf[a + 1]); - buf[a] = 0; - b = 8; - while (isspace(hold[b])) - b++; - - memmove(&hold[8], &hold[b], len - b + 1); - return(0); - } - } - - return(0); -} - /* * lingering_close() a`la Apache. see * http://www.apache.org/docs/misc/fin_wait_2.html for rationale @@ -229,28 +175,48 @@ int lingering_close(int fd) + /** - * \brief sanity requests - * Check for bogus requests coming from brain-dead Windows boxes. - * - * \param http_cmd The HTTP request to check + * \brief Detects a 'mobile' user agent */ -int is_bogus(char *http_cmd) { - char *url; - int i, max; +int is_mobile_ua(char *user_agent) { + if (strstr(user_agent,"iPhone OS") != NULL) { + return 1; + } else if (strstr(user_agent,"Windows CE") != NULL) { + return 1; + } else if (strstr(user_agent,"SymbianOS") != NULL) { + return 1; + } else if (strstr(user_agent, "Opera Mobi") != NULL) { + return 1; + } else if (strstr(user_agent, "Firefox/2.0.0 Opera 9.51 Beta") != NULL) { + /* For some reason a new install of Opera 9.51beta decided to spoof. */ + return 1; + } + return 0; +} + - url = strstr(http_cmd, " "); - if (url == NULL) return(1); - ++url; - char *bogus_prefixes[] = { - "/scripts/root.exe", /**< Worms and trojans and viruses, oh my! */ +/* + * 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) {////TODO! + 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 */ + "/_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; iReqLine = Line; + /* The requesttype... GET, POST... */ + StrBufExtract_token(Buf, Hdr->ReqLine, 0, ' '); + if (GetHash(HttpReqTypes, SKEY(Buf), &vLine) && + (vLine != NULL)) + { + Hdr->eReqType = *(long*)vLine; + } + else { + Hdr->eReqType = eGET; + return 1; + } + StrBufCutLeft(Hdr->ReqLine, StrLength(Buf) + 1); + + /* the HTTP Version... */ + StrBufExtract_token(Buf, Hdr->ReqLine, 1, ' '); + StrBufCutRight(Hdr->ReqLine, StrLength(Buf) + 1); + if ((StrLength(Buf) == 0) || + is_bogus(Hdr->ReqLine)) { + Hdr->eReqType = eGET; + return 1; + } -/** - * \brief handle one request + Hdr->this_page = NewStrBufDup(Hdr->ReqLine); + /* chop Filename / query arguments */ + Args = strchr(ChrPtr(Hdr->ReqLine), '?'); + if (Args == NULL) /* whe're not that picky about params... TODO: this will spoil '&' in filenames.*/ + Args = strchr(ChrPtr(Hdr->ReqLine), '&'); + if (Args != NULL) { + Hdr->PlainArgs = NewStrBufPlain( + Args, + StrLength(Hdr->ReqLine) - + (Args - ChrPtr(Hdr->ReqLine))); + StrBufCutAt(Hdr->ReqLine, 0, Args); + } /* don't parse them yet, maybe we don't even care... */ + + /* now lookup what we are going to do with this... */ + /* skip first slash */ + StrBufExtract_NextToken(Buf, Hdr->ReqLine, &Pos, '/'); + do { + StrBufExtract_NextToken(Buf, Hdr->ReqLine, &Pos, '/'); + + GetHash(HandlerHash, SKEY(Buf), &vHandler), + Hdr->Handler = (WebcitHandler*) vHandler; + if (Hdr->Handler == NULL) + break; + /* are we about to ignore some prefix like webcit/ ? */ + if ((Hdr->Handler->Flags & URLNAMESPACE) == 0) + break; + } while (1); + /* remove the handlername from the URL */ + if (Pos != NULL) { + StrBufCutLeft(Hdr->ReqLine, + Pos - ChrPtr(Hdr->ReqLine)); + } +/* + if (Hdr->Handler == NULL) + return 1; +*/ + Hdr->HTTPHeaders = NewHash(1, NULL); + + return 0; +} + +int AnalyseHeaders(ParsedHttpHdrs *Hdr) +{ + OneHttpHeader *pHdr; + void *vHdr; + long HKLen; + const char *HashKey; + HashPos *at = GetNewHashPos(Hdr->HTTPHeaders, 0); + + while (GetNextHashPos(Hdr->HTTPHeaders, at, &HKLen, &HashKey, &vHdr) && + (vHdr != NULL)) { + pHdr = (OneHttpHeader *)vHdr; + if (pHdr->HaveEvaluator) + pHdr->H(pHdr->Val, Hdr); + + } + DeleteHashPos(&at); + return 0; +} + +/*const char *nix(void *vptr) {return ChrPtr( (StrBuf*)vptr);}*/ + +/* + * Read in the request + */ +int ReadHTTPRequset (ParsedHttpHdrs *Hdr) +{ + const char *pch, *pchs, *pche; + OneHttpHeader *pHdr; + StrBuf *Line, *LastLine, *HeaderName; + int nLine = 0; + void *vF; + int isbogus = 0; + + HeaderName = NewStrBuf(); + Hdr->ReadBuf = NewStrBuf(); + LastLine = NULL; + do { + nLine ++; + Line = NewStrBuf(); + + if (ClientGetLine(&Hdr->http_sock, Line, Hdr->ReadBuf, &Hdr->Pos) < 0) return 1; + + if (StrLength(Line) == 0) { + FreeStrBuf(&Line); + continue; + } + if (nLine == 1) { + isbogus = ReadHttpSubject(Hdr, Line, HeaderName); + if (isbogus) break; + continue; + } + + /* 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; + } + + 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); + + pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader)); + memset(pHdr, 0, sizeof(OneHttpHeader)); + pHdr->Val = Line; + + if (GetHash(HttpHeaderHandler, SKEY(HeaderName), &vF) && + (vF != NULL)) + { + OneHttpHeader *FHdr = (OneHttpHeader*) vF; + pHdr->H = FHdr->H; + pHdr->HaveEvaluator = 1; + } + Put(Hdr->HTTPHeaders, SKEY(HeaderName), pHdr, DestroyHttpHeaderHandler); + LastLine = Line; + } while (Line != NULL); + + FreeStrBuf(&HeaderName); + + return isbogus; +} + + + +/* + * 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. @@ -275,150 +411,66 @@ int is_bogus(char *http_cmd) { * transaction loop. Afterwards, we unbind from the session. When this * function returns, the worker thread is then free to handle another * transaction. - * \param sock the socket we will put our answer to */ -void context_loop(int sock) +void context_loop(int *sock) { - struct httprequest *req = NULL; - struct httprequest *last = NULL; - struct httprequest *hptr; - char buf[SIZ], hold[SIZ]; - int desired_session = 0; - int got_cookie = 0; - int gzip_ok = 0; - struct wcsession *TheSession, *sptr; - char httpauth_string[1024]; - char httpauth_user[1024]; - char httpauth_pass[1024]; - char accept_language[256]; - char *ptr = NULL; - int session_is_new = 0; - - strcpy(httpauth_string, ""); - strcpy(httpauth_user, DEFAULT_HTTPAUTH_USER); - strcpy(httpauth_pass, DEFAULT_HTTPAUTH_PASS); + ParsedHttpHdrs Hdr; + int isbogus = 0; + wcsession *TheSession, *sptr; + struct timeval tx_start; + struct timeval tx_finish; + + gettimeofday(&tx_start, NULL); /* start a stopwatch for performance timing */ - /** + memset(&Hdr, 0, sizeof(ParsedHttpHdrs)); + Hdr.eReqType = eGET; + Hdr.http_sock = *sock; + /* * Find out what it is that the web browser is asking for */ - memset(hold, 0, sizeof(hold)); - do { - if (req_gets(sock, buf, hold) < 0) return; - - /** - * Can we compress? - */ - if (!strncasecmp(buf, "Accept-encoding:", 16)) { - if (strstr(&buf[16], "gzip")) { - gzip_ok = 1; - } - } + isbogus = ReadHTTPRequset(&Hdr); - /** - * Browser-based sessions use cookies for session authentication - */ - if (!strncasecmp(buf, "Cookie: webcit=", 15)) { - cookie_to_stuff(&buf[15], &desired_session, - NULL, 0, NULL, 0, NULL, 0); - got_cookie = 1; - } + if (!isbogus) + isbogus = AnalyseHeaders(&Hdr); +/* + if (isbogus) + StrBufPlain(ReqLine, HKEY("/404")); +*/ - /** - * GroupDAV-based sessions use HTTP authentication - */ - if (!strncasecmp(buf, "Authorization: Basic ", 21)) { - CtdlDecodeBase64(httpauth_string, &buf[21], strlen(&buf[21])); - extract_token(httpauth_user, httpauth_string, 0, ':', sizeof httpauth_user); - extract_token(httpauth_pass, httpauth_string, 1, ':', sizeof httpauth_pass); - } +/* dbg_PrintHash(HTTPHeaders, nix, NULL); */ - if (!strncasecmp(buf, "If-Modified-Since: ", 19)) { - if_modified_since = httpdate_to_timestamp(&buf[19]); - } - if (!strncasecmp(buf, "Accept-Language: ", 17)) { - safestrncpy(accept_language, &buf[17], sizeof accept_language); - } +///HttpHeaderHandler - /** - * Read in the request - */ - hptr = (struct httprequest *) - malloc(sizeof(struct httprequest)); - if (req == NULL) - req = hptr; - else - last->next = hptr; - hptr->next = NULL; - last = hptr; - safestrncpy(hptr->line, buf, sizeof hptr->line); - } while (!IsEmptyStr(buf)); - /** + + /* * 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. - */ - - ptr = strstr(req->line, " /webcit "); /*< Handle "/webcit" */ - if (ptr != NULL) { - strcpy(ptr+2, ptr+8); - } - - ptr = strstr(req->line, " /webcit"); /*< Handle "/webcit/" */ - if (ptr != NULL) { - strcpy(ptr+1, ptr+8); - } - - /** Begin parsing the request. */ - - safestrncpy(buf, req->line, sizeof buf); - lprintf(5, "HTTP: %s\n", buf); - - /** Check for bogus requests */ - if (is_bogus(buf)) { - strcpy(req->line, "GET /404 HTTP/1.1"); - strcpy(buf, "GET /404 HTTP/1.1"); + * / + if (!isbogus && + (StrLength(ReqLine) >= 8) && + (strstr(ChrPtr(ReqLine), "/webcit/")) ) { + StrBufCutLeft(ReqLine, 7); } - /** - * Strip out the method, leaving the URL up front... - */ - remove_token(buf, 0, ' '); - if (buf[1]==' ') buf[1]=0; - - /** - * While we're at it, gracefully handle requests for the - * robots.txt and favicon.ico files. - */ - if (!strncasecmp(buf, "/robots.txt", 11)) { - strcpy(req->line, "GET /static/robots.txt" - "?force_close_session=yes HTTP/1.1"); - } - else if (!strncasecmp(buf, "/favicon.ico", 12)) { - strcpy(req->line, "GET /static/favicon.ico"); + /* 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\n", ReqStrs[Hdr.eReqType], ChrPtr(ReqLine)); +#ifdef TECH_PREVIEW } +#endif - /** - * 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. - */ - else if ( (strcmp(buf, "/")) - && (strncasecmp(buf, "/listsub", 8)) - && (strncasecmp(buf, "/freebusy", 9)) - && (strncasecmp(buf, "/do_logout", 10)) - && (strncasecmp(buf, "/groupdav", 9)) - && (strncasecmp(buf, "/static", 7)) - && (strncasecmp(buf, "/rss", 4)) - && (strncasecmp(buf, "/404", 4)) - && (got_cookie == 0)) { - strcpy(req->line, "GET /static/nocookies.html" - "?force_close_session=yes HTTP/1.1"); - } +*/ /** * See if there's an existing session open with the desired ID or user/pass @@ -427,17 +479,19 @@ void context_loop(int sock) if (TheSession == NULL) { pthread_mutex_lock(&SessionListMutex); - for (sptr = SessionList; sptr != NULL; sptr = sptr->next) { - - /** If HTTP-AUTH, look for a session with matching credentials */ - if ( (!IsEmptyStr(httpauth_user)) - &&(!strcasecmp(sptr->httpauth_user, httpauth_user)) - &&(!strcasecmp(sptr->httpauth_pass, httpauth_pass)) ) { + for (sptr = SessionList; + ((sptr != NULL) && (TheSession == NULL)); + sptr = sptr->next) { + + /** If HTTP-AUTH, look for a session with matching credentials * / + if ( (////TODO check auth type here... + &&(!strcasecmp(ChrPtr(sptr->httpauth_user), httpauth_user)) + &&(!strcasecmp(ChrPtr(sptr->httpauth_pass), httpauth_pass)) ) { TheSession = sptr; } /** If cookie-session, look for a session with matching session ID */ - if ( (desired_session != 0) && (sptr->wc_session == desired_session)) { + if ( (Hdr.desired_session != 0) && (sptr->wc_session == Hdr.desired_session)) { TheSession = sptr; } @@ -450,9 +504,10 @@ void context_loop(int sock) */ if (TheSession == NULL) { lprintf(3, "Creating a new session\n"); - TheSession = (struct wcsession *) - malloc(sizeof(struct wcsession)); - memset(TheSession, 0, sizeof(struct wcsession)); + TheSession = (wcsession *) + malloc(sizeof(wcsession)); + memset(TheSession, 0, sizeof(wcsession)); + TheSession->Hdr = &Hdr; TheSession->serv_sock = (-1); TheSession->chat_sock = (-1); @@ -462,22 +517,26 @@ void context_loop(int sock) * doesn't, and that's a Bad Thing because it causes lots of spurious sessions * to get created. */ - if (desired_session == 0) { + if (Hdr.desired_session == 0) { TheSession->wc_session = GenerateSessionID(); } else { - TheSession->wc_session = desired_session; + TheSession->wc_session = Hdr.desired_session; } +/* + TheSession->httpauth_user = NewStrBufPlain(httpauth_user, -1); + TheSession->httpauth_pass = NewStrBufPlain(httpauth_user, -1); +*/ + pthread_setspecific(MyConKey, (void *)TheSession); + session_new_modules(TheSession); - strcpy(TheSession->httpauth_user, httpauth_user); - strcpy(TheSession->httpauth_pass, httpauth_pass); 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; } /* @@ -490,31 +549,302 @@ void context_loop(int sock) */ pthread_mutex_lock(&TheSession->SessionMutex); /* bind */ pthread_setspecific(MyConKey, (void *)TheSession); - TheSession->http_sock = sock; + TheSession->lastreq = time(NULL); /* log */ - TheSession->gzip_ok = gzip_ok; -#ifdef ENABLE_NLS - if (session_is_new) { - httplang_to_locale(accept_language); + TheSession->Hdr = &Hdr; + + session_attach_modules(TheSession); + session_loop(); /* do transaction */ + session_detach_modules(TheSession); + + TheSession->Hdr = NULL; + pthread_mutex_unlock(&TheSession->SessionMutex); /* unbind */ +/* TODO + + FreeStrBuf(&c_username); + FreeStrBuf(&c_password); + FreeStrBuf(&c_roomname); + FreeStrBuf(&c_httpauth_user); + FreeStrBuf(&c_httpauth_pass); +*/ + /* Free the request buffer */ + ///DeleteHash(&HTTPHeaders); + ///FreeStrBuf(&ReqLine); + + /* How long did this transaction take? */ + gettimeofday(&tx_finish, NULL); + + lprintf(9, "Transaction completed in %ld.%06ld seconds.\n", + ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) / 1000000, + ((tx_finish.tv_sec*1000000 + tx_finish.tv_usec) - (tx_start.tv_sec*1000000 + tx_start.tv_usec)) % 1000000 + ); +} + +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 Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + hdr->RawCookie = Line; + if (hdr->DontNeedAuth) + return; +/* + c_username = NewStrBuf(); + c_password = NewStrBuf(); + c_roomname = NewStrBuf(); + safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string); + c_httpauth_user = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER)); + c_httpauth_pass = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS)); +*/ + cookie_to_stuff(Line, &hdr->desired_session, + hdr->c_username, + hdr->c_password, + hdr->c_roomname); + hdr->got_cookie = 1; +} + + + /* + * Browser-based sessions use cookies for session authentication + * / + if (!isbogus && + GetHash(HTTPHeaders, HKEY("COOKIE"), &vLine) && + (vLine != NULL)) { + cookie_to_stuff(vLine, &desired_session, + NULL, NULL, NULL); + got_cookie = 1; } - go_selected_language(); /* set locale */ -#endif - session_loop(req); /* do transaction */ -#ifdef ENABLE_NLS - stop_selected_language(); /* unset locale */ + */ + /* + * GroupDAV-based sessions use HTTP authentication + */ +/* + if (!isbogus && + 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)); + } + +*/ +void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + const char *Pos = NULL; + StrBufDecodeBase64(Line); + StrBufExtract_NextToken(hdr->c_username, Line, &Pos, ':'); + StrBufExtract_NextToken(hdr->c_password, Line, &Pos, ':'); +} + +void Header_HandleContentLength(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + hdr->ContentLength = StrToi(Line); +} + +void Header_HandleContentType(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + hdr->ContentType = Line; +} + +void Header_HandleUserAgent(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + hdr->user_agent = Line; +#ifdef TECH_PREVIEW +/* TODO: do this later on session creating + if ((WCC->is_mobile < 0) && is_mobile_ua(&buf[12])) { + WCC->is_mobile = 1; + } + else { + WCC->is_mobile = 0; + } +*/ #endif - pthread_mutex_unlock(&TheSession->SessionMutex); /* unbind */ +} - /* Free the request buffer */ - while (req != NULL) { - hptr = req->next; - free(req); - req = hptr; + +void Header_HandleHost(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + if ((follow_xff) && (hdr->http_host != NULL)) + return; + else + hdr->http_host = Line; +} + +void Header_HandleXFFHost(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + if (follow_xff) + hdr->http_host = Line; +} + + +void Header_HandleXFF(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + hdr->browser_host = Line; + + while (StrBufNum_tokens(hdr->browser_host, ',') > 1) { + StrBufRemove_token(hdr->browser_host, 0, ','); } + StrBufTrim(hdr->browser_host); +} +void Header_HandleIfModSince(StrBuf *Line, ParsedHttpHdrs *hdr) +{ + hdr->if_modified_since = httpdate_to_timestamp(Line); +} + +void Header_HandleAcceptEncoding(StrBuf *Line, ParsedHttpHdrs *hdr) +{ /* - * Free up any session-local substitution variables which - * were set during this transaction + * Can we compress? */ - clear_local_substs(); + if (strstr(&ChrPtr(Line)[16], "gzip")) { + hdr->gzip_ok = 1; + } } + +/* +{ + c_username = NewStrBuf(); + c_password = NewStrBuf(); + c_roomname = NewStrBuf(); + safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string); + c_httpauth_user = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER)); + c_httpauth_pass = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS)); +} +*/ + /* * + * 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. + * / + else if ( (StrLength(ReqLine) > 1 ) + && (strncasecmp(ChrPtr(ReqLine), "/404", 4)) + && (Hdr.got_cookie == 0)) { + StrBufPlain(ReqLine, + HKEY("/static/nocookies.html" + "?force_close_session=yes")); + } +*/ +const char *ReqStrs[eNONE] = { + "GET", + "POST", + "OPTIONS", + "PROPFIND", + "PUT", + "DELETE", + "HEAD", + "MOVE", + "COPY" +}; + +void +ServerStartModule_CONTEXT +(void) +{ + long *v; + HttpReqTypes = NewHash(1, NULL); + HttpHeaderHandler = NewHash(1, NULL); + + v = malloc(sizeof(long)); + *v = eGET; + Put(HttpReqTypes, HKEY("GET"), v, NULL); + + v = malloc(sizeof(long)); + *v = ePOST; + Put(HttpReqTypes, HKEY("POST"), v, NULL); + + v = malloc(sizeof(long)); + *v = eOPTIONS; + Put(HttpReqTypes, HKEY("OPTIONS"), v, NULL); + + v = malloc(sizeof(long)); + *v = ePROPFIND; + Put(HttpReqTypes, HKEY("PROPFIND"), v, NULL); + + v = malloc(sizeof(long)); + *v = ePUT; + Put(HttpReqTypes, HKEY("PUT"), v, NULL); + + v = malloc(sizeof(long)); + *v = eDELETE; + Put(HttpReqTypes, HKEY("DELETE"), v, NULL); + + v = malloc(sizeof(long)); + *v = eHEAD; + Put(HttpReqTypes, HKEY("HEAD"), v, NULL); + + v = malloc(sizeof(long)); + *v = eMOVE; + Put(HttpReqTypes, HKEY("MOVE"), v, NULL); + + v = malloc(sizeof(long)); + *v = eCOPY; + Put(HttpReqTypes, HKEY("COPY"), v, NULL); +} + +void +ServerShutdownModule_CONTEXT +(void) +{ + DeleteHash(&HttpReqTypes); + DeleteHash(&HttpHeaderHandler); +} + +void RegisterHeaderHandler(const char *Name, long Len, Header_Evaluator F) +{ + OneHttpHeader *pHdr; + pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader)); + memset(pHdr, 0, sizeof(OneHttpHeader)); + pHdr->H = F; + Put(HttpHeaderHandler, Name, Len, pHdr, DestroyHttpHeaderHandler); +} +extern void blank_page(void); ///TODO: remove me +void +InitModule_CONTEXT +(void) +{ + RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie); + RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth); + RegisterHeaderHandler(HKEY("CONTENT-LENGTH"), Header_HandleContentLength); + RegisterHeaderHandler(HKEY("CONTENT-TYPE"), Header_HandleContentType); + RegisterHeaderHandler(HKEY("USER-AGENT"), Header_HandleUserAgent); + RegisterHeaderHandler(HKEY("X-FORWARDED-HOST"), Header_HandleXFFHost); + RegisterHeaderHandler(HKEY("HOST"), Header_HandleHost); + RegisterHeaderHandler(HKEY("X-FORWARDED-FOR"), Header_HandleXFF); + RegisterHeaderHandler(HKEY("ACCEPT-ENCODING"), Header_HandleAcceptEncoding); + RegisterHeaderHandler(HKEY("IF-MODIFIED-SINCE"), Header_HandleIfModSince); + + 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); + + + + WebcitAddUrlHandler(HKEY("blank"), blank_page, ANONYMOUS|BOGUS); + + WebcitAddUrlHandler(HKEY("blank"), blank_page, URLNAMESPACE); +} +//FreeStrBuf(&WCC->this_page); +