/*
* $Id$
- */
-/**
- * \defgroup WebServerII some of the webserver stuff.
+ *
* This is the other half of the webserver. It handles the task of hooking
* 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 started.
- * \ingroup WebcitHttpServer
*
*/
-/*@{*/
+
#include "webcit.h"
#include "webserver.h"
-/** Only one thread may manipulate SessionList at a time... */
+/* Only one thread may manipulate SessionList at a time... */
pthread_mutex_t SessionListMutex;
struct wcsession *SessionList = NULL; /**< our sessions ????*/
pthread_key_t MyConKey; /**< TSD key for MySession() */
-/**
- * \brief free the memory used for viewing atachments
- * \param sess the session object to destroy
+/*
+ * free the memory used for viewing atachments
*/
void free_attachments(struct wcsession *sess) {
struct wc_attachment *att;
}
+void DestroySession(struct 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);
+ }
+ free_attachments((*sessions_to_kill));
+ free_march_list((*sessions_to_kill));
+ DeleteHash(&((*sessions_to_kill)->hash_prefs));
+ DeleteHash(&((*sessions_to_kill)->IconBarSetttings));
+ DeleteHash(&((*sessions_to_kill)->ServCfg));
+ FreeStrBuf(&((*sessions_to_kill)->UrlFragment1));
+ FreeStrBuf(&((*sessions_to_kill)->UrlFragment2));
+ FreeStrBuf(&((*sessions_to_kill)->WBuf));
+ FreeStrBuf(&((*sessions_to_kill)->HBuf));
+ FreeStrBuf(&((*sessions_to_kill)->CLineBuf));
+ free((*sessions_to_kill));
+ (*sessions_to_kill) = NULL;
+}
+
void shutdown_sessions(void)
{
struct wcsession *sptr;
sptr->killthis = 1;
}
}
-/**
- * \brief what??????
- */
+
void do_housekeeping(void)
{
struct wcsession *sptr, *ss;
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);
pthread_mutex_unlock(&sessions_to_kill->SessionMutex);
sptr = sessions_to_kill->next;
- free(sessions_to_kill);
+
+ DestroySession(&sessions_to_kill);
sessions_to_kill = sptr;
--num_sessions;
}
}
-/**
- * \brief Collapse multiple cookies on one line
- * \param sock a socket?
- * \param buf some bunch of chars?
- * \param hold hold what?
- * TODO: get this comment right
+/*
+ * 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);
- }
- }
+////int req_gets(int *sock, char *buf, char *hold, size_t hlen)
+////{
+//// 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.
+//// snprintf(hold, hlen, "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);
+////}
- return(0);
+
+/*
+ * Collapse multiple cookies on one line
+ */
+int ReqGetStrBuf(int *sock, StrBuf *Target, StrBuf *buf)
+{
+
+ return ClientGetLine(sock, Target, buf);
}
-/**
- * \brief close some fd for some reason???
- * \param fd the fd to close??????
+
+
+/*
* lingering_close() a`la Apache. see
* http://www.apache.org/docs/misc/fin_wait_2.html for rationale
- * TODO: get this comment precise.
*/
-
int lingering_close(int fd)
{
char buf[SIZ];
*
* \param http_cmd The HTTP request to check
*/
-int is_bogus(char *http_cmd) {
- char *url;
+int is_bogus(StrBuf *http_cmd) {
+ const char *url;
int i, max;
- url = strstr(http_cmd, " ");
- if (url == NULL) return(1);
+ url = ChrPtr(http_cmd);
+ if (IsEmptyStr(url)) return(1);
++url;
char *bogus_prefixes[] = {
}
+const char *nix(void *vptr) {return ChrPtr( (StrBuf*)vptr);}
/**
* \brief handle one request
* 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];
+ const char *buf;
int desired_session = 0;
int got_cookie = 0;
int gzip_ok = 0;
char httpauth_string[1024];
char httpauth_user[1024];
char httpauth_pass[1024];
- char accept_language[256];
char *ptr = NULL;
int session_is_new = 0;
+ int nLine = 0;
+ int LineLen;
+ void *vLine;
+ StrBuf *Buf, *Line, *LastLine, *HeaderName, *ReqLine, *ReqType, *HTTPVersion;
+ StrBuf *accept_language = NULL;
+ const char *pch, *pchs, *pche;
+ HashList *HTTPHeaders;
strcpy(httpauth_string, "");
strcpy(httpauth_user, DEFAULT_HTTPAUTH_USER);
/**
* Find out what it is that the web browser is asking for
*/
- memset(hold, 0, sizeof(hold));
+ HeaderName = NewStrBuf();
+ Buf = NewStrBuf();
+ LastLine = NULL;
+ HTTPHeaders = NewHash(1, NULL);
+ /**
+ * Read in the request
+ */
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;
- }
- }
+ nLine ++;
+ Line = NewStrBuf();
+ if (ReqGetStrBuf(sock, Line, Buf) < 0) return;
- /**
- * 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;
+ LineLen = StrLength(Line);
+
+ if (nLine == 1) {
+ ReqLine = Line;
+ continue;
+ }
+ if (LineLen == 0) {
+ FreeStrBuf(&Line);
+ continue;
}
- /**
- * 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);
+ /** 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;
}
- if (!strncasecmp(buf, "If-Modified-Since: ", 19)) {
- if_modified_since = httpdate_to_timestamp(&buf[19]);
+ StrBufExtract_token(HeaderName, Line, 0, ':');
+ //// TODO: filter bad chars!
+
+ 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?
+ */
+ if (GetHash(HTTPHeaders, HKEY("ACCEPT-ENCODING"), &vLine) &&
+ (vLine != NULL)) {
+ buf = ChrPtr((StrBuf*)vLine);
+ if (strstr(&buf[16], "gzip")) {
+ gzip_ok = 1;
}
+ }
- if (!strncasecmp(buf, "Accept-Language: ", 17)) {
- safestrncpy(accept_language, &buf[17], sizeof accept_language);
+ /**
+ * Browser-based sessions use cookies for session authentication
+ */
+ if (GetHash(HTTPHeaders, HKEY("COOKIE"), &vLine) &&
+ (vLine != NULL)) {
+ cookie_to_stuff(vLine, &desired_session,
+ NULL, 0, NULL, 0, NULL, 0);
+ got_cookie = 1;
+ }
+
+ /**
+ * GroupDAV-based sessions use HTTP authentication
+ */
+ if (GetHash(HTTPHeaders, HKEY("AUTHORIZATION"), &vLine) &&
+ (vLine != NULL)) {
+ Line = (StrBuf*)vLine;
+ if (strncasecmp(ChrPtr(Line), "Basic ", 6)) {
+ 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 sheme not supported! [%s]\n", ChrPtr(Line));
+ }
- /**
- * 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;
+ if (GetHash(HTTPHeaders, HKEY("IF-MODIFIED-SINCE"), &vLine) &&
+ (vLine != NULL)) {
+ if_modified_since = httpdate_to_timestamp((StrBuf*)vLine);
+ }
- safestrncpy(hptr->line, buf, sizeof hptr->line);
+ if (GetHash(HTTPHeaders, HKEY("ACCEPT-LANGUAGE"), &vLine) &&
+ (vLine != NULL)) {
+ accept_language = (StrBuf*) vLine;
+ }
- } 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);
+ ReqType = NewStrBuf();
+ HTTPVersion = NewStrBuf();
+ StrBufExtract_token(HTTPVersion, ReqLine, 2, ' ');
+ StrBufExtract_token(ReqType, ReqLine, 0, ' ');
+ StrBufCutLeft(ReqLine, StrLength(ReqType) + 1);
+ StrBufCutRight(ReqLine, StrLength(HTTPVersion) + 1);
+
+ if ((StrLength(ReqLine) >= 8) &&
+ (ptr = strstr(ChrPtr(ReqLine), "/webcit/"), /*< Handle "/webcit/" */
+ (ptr != NULL))) {
+ StrBufCutLeft(ReqLine, 7);
}
/** Begin parsing the request. */
-
- safestrncpy(buf, req->line, sizeof buf);
- lprintf(5, "HTTP: %s\n", buf);
+#ifdef TECH_PREVIEW
+ if ((strncmp(ChrPtr(ReqLine), "/sslg", 5) != 0) &&
+ (strncmp(ChrPtr(ReqLine), "/static/", 8) != 0) &&
+ (strncmp(ChrPtr(ReqLine), "/wholist_section", 16) != 0)) {
+#endif
+ lprintf(5, "HTTP: %s %s %s\n", ChrPtr(ReqType), ChrPtr(ReqLine), ChrPtr(HTTPVersion));
+#ifdef TECH_PREVIEW
+ }
+#endif
/** Check for bogus requests */
- if (is_bogus(buf)) {
- strcpy(req->line, "GET /404 HTTP/1.1");
- strcpy(buf, "GET /404 HTTP/1.1");
+ if ((StrLength(HTTPVersion) == 0) ||
+ (StrLength(ReqType) == 0) ||
+ is_bogus(ReqLine)) {
+ StrBufPlain(ReqLine, HKEY("/404 HTTP/1.1"));
+ StrBufPlain(ReqType, HKEY("GET"));
}
-
- /**
- * Strip out the method, leaving the URL up front...
- */
- remove_token(buf, 0, ' ');
- if (buf[1]==' ') buf[1]=0;
+ FreeStrBuf(&HTTPVersion);
/**
* 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");
+ 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(buf, "/favicon.ico", 12)) {
- strcpy(req->line, "GET /static/favicon.ico");
+ else if (!strncasecmp(ChrPtr(ReqLine), "/favicon.ico", 12)) {
+ StrBufPlain(ReqLine, HKEY("/static/favicon.ico"));
+ StrBufPlain(ReqType, HKEY("GET"));
}
/**
* 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))
+ 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)) {
- strcpy(req->line, "GET /static/nocookies.html"
- "?force_close_session=yes HTTP/1.1");
+ StrBufPlain(ReqLine,
+ HKEY("/static/nocookies.html"
+ "?force_close_session=yes"));
}
/**
strcpy(TheSession->httpauth_user, httpauth_user);
strcpy(TheSession->httpauth_pass, httpauth_pass);
+ TheSession->hash_prefs = NewHash(1,NULL); /* Get a hash table for the user preferences */
pthread_mutex_init(&TheSession->SessionMutex, NULL);
pthread_mutex_lock(&SessionListMutex);
+ TheSession->urlstrings = NULL;
+ TheSession->vars = NULL;
TheSession->nonce = rand();
+ TheSession->WBuf = NULL;
+ TheSession->CLineBuf = NewStrBuf();
TheSession->next = SessionList;
+ TheSession->is_mobile = -1;
SessionList = TheSession;
pthread_mutex_unlock(&SessionListMutex);
session_is_new = 1;
}
- /**
+ /*
* A future improvement might be to check the session integrity
* at this point before continuing.
*/
- /**
+ /*
* Bind to the session and perform the transaction
*/
- pthread_mutex_lock(&TheSession->SessionMutex); /*< bind */
+ pthread_mutex_lock(&TheSession->SessionMutex); /* bind */
pthread_setspecific(MyConKey, (void *)TheSession);
- TheSession->http_sock = sock;
- TheSession->lastreq = time(NULL); /*< log */
+
+ TheSession->urlstrings = NewHash(1,NULL);
+ TheSession->vars = NewHash(1,NULL);
+ 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);
}
- go_selected_language(); /*< set locale */
+ go_selected_language(); /* set locale */
#endif
- session_loop(req); /*< do transaction */
+ session_loop(HTTPHeaders, ReqLine, ReqType, Buf); /* do transaction */
#ifdef ENABLE_NLS
- stop_selected_language(); /*< unset locale */
+ stop_selected_language(); /* unset locale */
#endif
- pthread_mutex_unlock(&TheSession->SessionMutex); /*< unbind */
-
- /** Free the request buffer */
- while (req != NULL) {
- hptr = req->next;
- free(req);
- req = hptr;
- }
-
- /**
+ DeleteHash(&TheSession->urlstrings);
+ DeleteHash(&TheSession->vars);
+ FreeStrBuf(&TheSession->WBuf);
+ FreeStrBuf(&TheSession->HBuf);
+
+
+ pthread_mutex_unlock(&TheSession->SessionMutex); /* unbind */
+
+ /* Free the request buffer */
+ DeleteHash(&HTTPHeaders);
+ FreeStrBuf(&ReqLine);
+ FreeStrBuf(&ReqType);
+ FreeStrBuf(&Buf);
+ /*
* Free up any session-local substitution variables which
* were set during this transaction
*/
- clear_local_substs();
+
+
+}
+
+void tmpl_nonce(StrBuf *Target, int nArgs, WCTemplateToken *Tokens, void *Context, int ContextType)
+{
+ struct wcsession *WCC = WC;
+ StrBufAppendPrintf(Target, "%ld",
+ (WCC != NULL)? WCC->nonce:0);
+}
+
+void
+InitModule_CONTEXT
+(void)
+{
+ RegisterNamespace("NONCE", 0, 0, tmpl_nonce, 0);
}
-/*@}*/
projects / citadel.git / blobdiff