}
-/*
- * lingering_close() a`la Apache. see
- * http://www.apache.org/docs/misc/fin_wait_2.html for rationale
- */
-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);
-}
-
return 0;
}
-
-
-/*
- * 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 */
- "/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);
- }
- }
-
- return(0); /* probably ok */
+/* If it's a "force 404" situation then display the error and bail. */
+void do_404(void)
+{
+ hprintf("HTTP/1.1 404 Not found\r\n");
+ hprintf("Content-Type: text/plain\r\n");
+ wprintf("Not found\r\n");
+ end_burst();
}
-
int ReadHttpSubject(ParsedHttpHdrs *Hdr, StrBuf *Line, StrBuf *Buf)
{
const char *Args;
const char *Pos = NULL;
- Hdr->ReqLine = Line;
+ Hdr->HR.ReqLine = Line;
/* The requesttype... GET, POST... */
- StrBufExtract_token(Buf, Hdr->ReqLine, 0, ' ');
+ StrBufExtract_token(Buf, Hdr->HR.ReqLine, 0, ' ');
if (GetHash(HttpReqTypes, SKEY(Buf), &vLine) &&
(vLine != NULL))
{
- Hdr->eReqType = *(long*)vLine;
+ Hdr->HR.eReqType = *(long*)vLine;
}
else {
- Hdr->eReqType = eGET;
+ Hdr->HR.eReqType = eGET;
return 1;
}
- StrBufCutLeft(Hdr->ReqLine, StrLength(Buf) + 1);
+ StrBufCutLeft(Hdr->HR.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;
+ StrBufExtract_token(Buf, Hdr->HR.ReqLine, 1, ' ');
+ StrBufCutRight(Hdr->HR.ReqLine, StrLength(Buf) + 1);
+
+ if (StrLength(Buf) == 0) {
+ Hdr->HR.eReqType = eGET;
return 1;
}
- Hdr->this_page = NewStrBufDup(Hdr->ReqLine);
+ Hdr->this_page = NewStrBufDup(Hdr->HR.ReqLine);
/* chop Filename / query arguments */
- Args = strchr(ChrPtr(Hdr->ReqLine), '?');
+ Args = strchr(ChrPtr(Hdr->HR.ReqLine), '?');
if (Args == NULL) /* whe're not that picky about params... TODO: this will spoil '&' in filenames.*/
- Args = strchr(ChrPtr(Hdr->ReqLine), '&');
+ Args = strchr(ChrPtr(Hdr->HR.ReqLine), '&');
if (Args != NULL) {
Args ++; /* skip the ? */
Hdr->PlainArgs = NewStrBufPlain(
Args,
- StrLength(Hdr->ReqLine) -
- (Args - ChrPtr(Hdr->ReqLine)));
- StrBufCutAt(Hdr->ReqLine, 0, Args - 1);
+ StrLength(Hdr->HR.ReqLine) -
+ (Args - ChrPtr(Hdr->HR.ReqLine)));
+ StrBufCutAt(Hdr->HR.ReqLine, 0, Args - 1);
} /* 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, '/');
+ StrBufExtract_NextToken(Buf, Hdr->HR.ReqLine, &Pos, '/');
do {
- StrBufExtract_NextToken(Buf, Hdr->ReqLine, &Pos, '/');
+ StrBufExtract_NextToken(Buf, Hdr->HR.ReqLine, &Pos, '/');
GetHash(HandlerHash, SKEY(Buf), &vHandler),
- Hdr->Handler = (WebcitHandler*) vHandler;
- if (Hdr->Handler == NULL)
+ Hdr->HR.Handler = (WebcitHandler*) vHandler;
+ if (Hdr->HR.Handler == NULL)
break;
/*
* 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.
*/
- if ((Hdr->Handler->Flags & URLNAMESPACE) == 0)
- break;
+ if ((Hdr->HR.Handler->Flags & URLNAMESPACE) != 0)
+ continue;
+ break;
} while (1);
/* remove the handlername from the URL */
if (Pos != NULL) {
- StrBufCutLeft(Hdr->ReqLine,
- Pos - ChrPtr(Hdr->ReqLine));
+ StrBufCutLeft(Hdr->HR.ReqLine,
+ Pos - ChrPtr(Hdr->HR.ReqLine));
+ }
+
+ if (Hdr->HR.Handler != NULL) {
+ if ((Hdr->HR.Handler->Flags & BOGUS) != 0)
+ return 1;
+ Hdr->HR.DontNeedAuth = (Hdr->HR.Handler->Flags & ISSTATIC) != 0;
}
-/*
- if (Hdr->Handler == NULL)
- return 1;
-*/
- Hdr->HTTPHeaders = NewHash(1, NULL);
return 0;
}
nLine ++;
Line = NewStrBuf();
- if (ClientGetLine(&Hdr->http_sock, Line, Hdr->ReadBuf, &Hdr->Pos) < 0) return 1;
+ if (ClientGetLine(Hdr, Line) < 0) return 1;
if (StrLength(Line) == 0) {
FreeStrBuf(&Line);
continue;
}
if (nLine == 1) {
+ Hdr->HTTPHeaders = NewHash(1, NULL);
+ pHdr = (OneHttpHeader*) malloc(sizeof(OneHttpHeader));
+ memset(pHdr, 0, sizeof(OneHttpHeader));
+ pHdr->Val = Line;
+ Put(Hdr->HTTPHeaders, HKEY("GET /"), pHdr, DestroyHttpHeaderHandler);
+ lprintf(9, "%s\n", ChrPtr(Line));
isbogus = ReadHttpSubject(Hdr, Line, HeaderName);
if (isbogus) break;
continue;
* function returns, the worker thread is then free to handle another
* transaction.
*/
-void context_loop(int *sock)
+void context_loop(ParsedHttpHdrs *Hdr)
{
- ParsedHttpHdrs Hdr;
int isbogus = 0;
wcsession *TheSession, *sptr;
struct timeval tx_start;
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
*/
- isbogus = ReadHTTPRequset(&Hdr);
+ isbogus = ReadHTTPRequset(Hdr);
if (!isbogus)
- isbogus = AnalyseHeaders(&Hdr);
+ isbogus = AnalyseHeaders(Hdr);
+
+ if ((isbogus) ||
+ ((Hdr->HR.Handler != NULL) &&
+ ((Hdr->HR.Handler->Flags & BOGUS) != 0)))
+ {
+ wcsession *Bogus;
+ Bogus = (wcsession *)
+ malloc(sizeof(wcsession));
+ memset(Bogus, 0, sizeof(wcsession));
+ pthread_setspecific(MyConKey, (void *)Bogus);
+ Bogus->Hdr = Hdr;
+ session_new_modules(Bogus);
+ do_404();
+ session_detach_modules(Bogus);
+ http_destroy_modules(Hdr);
+ session_destroy_modules(&Bogus);
+ return;
+ }
+
+ if ((Hdr->HR.Handler != NULL) &&
+ ((Hdr->HR.Handler->Flags & ISSTATIC) != 0))
+ {
+ wcsession *Static;
+
+ Static = (wcsession *)
+ malloc(sizeof(wcsession));
+ memset(Static, 0, sizeof(wcsession));
+ pthread_setspecific(MyConKey, (void *)Static);
+ Static->Hdr = Hdr;
+ Static->serv_sock = (-1);
+ Static->chat_sock = (-1);
+ Static->is_mobile = -1;
+ session_new_modules(Static);
+
+ Hdr->HR.Handler->F();
+
+ /* How long did this transaction take? */
+ gettimeofday(&tx_finish, NULL);
+
+ lprintf(9, "SL: Transaction [%s] completed in %ld.%06ld seconds.\n",
+ ChrPtr(Hdr->this_page),
+ ((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
+ );
+
+ session_detach_modules(Static);
+ http_destroy_modules(Hdr);
+ session_destroy_modules(&Static);
+ return;
+ }
+
+ if (Hdr->HR.got_auth == AUTH_BASIC)
+ CheckAuthBasic(Hdr);
+
/*
- if (isbogus)
- StrBufPlain(ReqLine, HKEY("/404"));
TODO HKEY("/static/nocookies.html?force_close_session=yes"));
*/
((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 HTTP-AUTH, look for a session with matching credentials */
+ switch (Hdr->HR.got_auth)
+ {
+ case AUTH_BASIC:
+ if ( (Hdr->HR.SessionKey != sptr->SessionKey))
+ continue;
+ GetAuthBasic(Hdr);
+ if ((!strcasecmp(ChrPtr(Hdr->c_username), ChrPtr(sptr->wc_username))) &&
+ (!strcasecmp(ChrPtr(Hdr->c_password), ChrPtr(sptr->wc_password))) )
+ TheSession = sptr;
+ break;
+ case AUTH_COOKIE:
/** If cookie-session, look for a session with matching session ID */
- if ( (Hdr.desired_session != 0) && (sptr->wc_session == Hdr.desired_session)) {
- TheSession = sptr;
+ if ( (Hdr->HR.desired_session != 0) &&
+ (sptr->wc_session == Hdr->HR.desired_session))
+ TheSession = sptr;
+ break;
+ case NO_AUTH:
+ break;
}
-
}
pthread_mutex_unlock(&SessionListMutex);
}
TheSession = (wcsession *)
malloc(sizeof(wcsession));
memset(TheSession, 0, sizeof(wcsession));
- TheSession->Hdr = &Hdr;
+ TheSession->Hdr = Hdr;
+ TheSession->SessionKey = Hdr->HR.SessionKey;
TheSession->serv_sock = (-1);
TheSession->chat_sock = (-1);
* doesn't, and that's a Bad Thing because it causes lots of spurious sessions
* to get created.
*/
- if (Hdr.desired_session == 0) {
+ if (Hdr->HR.desired_session == 0) {
TheSession->wc_session = GenerateSessionID();
}
else {
- TheSession->wc_session = Hdr.desired_session;
+ TheSession->wc_session = Hdr->HR.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);
TheSession->is_mobile = -1;
SessionList = TheSession;
pthread_mutex_unlock(&SessionListMutex);
+
+ if (StrLength(Hdr->c_language) > 0) {
+ lprintf(9, "Session cookie requests language '%s'\n", ChrPtr(Hdr->c_language));
+ set_selected_language(ChrPtr(Hdr->c_language));
+ go_selected_language();
+ }
}
/*
pthread_setspecific(MyConKey, (void *)TheSession);
TheSession->lastreq = time(NULL); /* log */
- TheSession->Hdr = &Hdr;
+ TheSession->Hdr = Hdr;
session_attach_modules(TheSession);
session_loop(); /* do transaction */
gettimeofday(&tx_finish, NULL);
lprintf(9, "Transaction [%s] completed in %ld.%06ld seconds.\n",
- ChrPtr(Hdr.this_page),
+ ChrPtr(Hdr->this_page),
((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
);
TheSession->Hdr = NULL;
pthread_mutex_unlock(&TheSession->SessionMutex); /* unbind */
- http_destroy_modules(&Hdr);
+ http_destroy_modules(Hdr);
}
void tmplput_nonce(StrBuf *Target, WCTemplputParams *TP)
void Header_HandleContentLength(StrBuf *Line, ParsedHttpHdrs *hdr)
{
- hdr->ContentLength = StrToi(Line);
+ hdr->HR.ContentLength = StrToi(Line);
}
void Header_HandleContentType(StrBuf *Line, ParsedHttpHdrs *hdr)
{
- hdr->ContentType = Line;
+ hdr->HR.ContentType = Line;
}
void Header_HandleUserAgent(StrBuf *Line, ParsedHttpHdrs *hdr)
{
- hdr->user_agent = Line;
+ hdr->HR.user_agent = Line;
#ifdef TECH_PREVIEW
/* TODO: do this later on session creating
if ((WCC->is_mobile < 0) && is_mobile_ua(&buf[12])) {
void Header_HandleHost(StrBuf *Line, ParsedHttpHdrs *hdr)
{
- if ((follow_xff) && (hdr->http_host != NULL))
+ if ((follow_xff) && (hdr->HR.http_host != NULL))
return;
else
- hdr->http_host = Line;
+ hdr->HR.http_host = Line;
}
void Header_HandleXFFHost(StrBuf *Line, ParsedHttpHdrs *hdr)
{
if (follow_xff)
- hdr->http_host = Line;
+ hdr->HR.http_host = Line;
}
void Header_HandleXFF(StrBuf *Line, ParsedHttpHdrs *hdr)
{
- hdr->browser_host = Line;
+ hdr->HR.browser_host = Line;
- while (StrBufNum_tokens(hdr->browser_host, ',') > 1) {
- StrBufRemove_token(hdr->browser_host, 0, ',');
+ while (StrBufNum_tokens(hdr->HR.browser_host, ',') > 1) {
+ StrBufRemove_token(hdr->HR.browser_host, 0, ',');
}
- StrBufTrim(hdr->browser_host);
+ StrBufTrim(hdr->HR.browser_host);
}
void Header_HandleIfModSince(StrBuf *Line, ParsedHttpHdrs *hdr)
{
- hdr->if_modified_since = httpdate_to_timestamp(Line);
+ hdr->HR.if_modified_since = httpdate_to_timestamp(Line);
}
void Header_HandleAcceptEncoding(StrBuf *Line, ParsedHttpHdrs *hdr)
* Can we compress?
*/
if (strstr(&ChrPtr(Line)[16], "gzip")) {
- hdr->gzip_ok = 1;
+ hdr->HR.gzip_ok = 1;
}
}
const char *ReqStrs[eNONE] = {
pHdr->H = F;
Put(HttpHeaderHandler, Name, Len, pHdr, DestroyHttpHeaderHandler);
}
-extern void blank_page(void); ///TODO: remove me
+
+
void
InitModule_CONTEXT
(void)
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("webcit"), blank_page, URLNAMESPACE);
+ WebcitAddUrlHandler(HKEY("404"), do_404, ANONYMOUS|COOKIEUNNEEDED);
+/*
+ * 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.
+ */
+ WebcitAddUrlHandler(HKEY("scripts"), do_404, ANONYMOUS|BOGUS); /* /root.exe /* Worms and trojans and viruses, oh my! */
+ WebcitAddUrlHandler(HKEY("c"), do_404, ANONYMOUS|BOGUS); /* /winnt */
+ WebcitAddUrlHandler(HKEY("MSADC"), do_404, ANONYMOUS|BOGUS);
+ WebcitAddUrlHandler(HKEY("_vti"), do_404, ANONYMOUS|BOGUS); /* Broken Microsoft DAV implementation */
+ WebcitAddUrlHandler(HKEY("MSOffice"), do_404, ANONYMOUS|BOGUS); /* Stoopid MSOffice thinks everyone is IIS */
+ WebcitAddUrlHandler(HKEY("nonexistenshit"), do_404, ANONYMOUS|BOGUS); /* Exploit found in the wild January 2009 */
}
HttpDestroyModule_CONTEXT
(ParsedHttpHdrs *httpreq)
{
- FreeStrBuf(&httpreq->ReqLine);
FreeStrBuf(&httpreq->ReadBuf);
FreeStrBuf(&httpreq->PlainArgs);
FreeStrBuf(&httpreq->this_page);