2 * This is the main transaction loop of the web service. It maintains a
3 * persistent session to the Citadel server, handling HTTP WebCit requests as
4 * they arrive and presenting a user interface.
6 #define SHOW_ME_VAPPEND_PRINTF
11 #include "webserver.h"
14 StrBuf *csslocal = NULL;
15 HashList *HandlerHash = NULL;
18 void DeleteWebcitHandler(void *vHandler)
20 WebcitHandler *Handler = (WebcitHandler*) vHandler;
21 FreeStrBuf(&Handler->Name);
22 FreeStrBuf(&Handler->DisplayName);
26 void WebcitAddUrlHandler(const char * UrlString, long UrlSLen,
27 const char *DisplayName, long dslen,
31 WebcitHandler *NewHandler;
32 NewHandler = (WebcitHandler*) malloc(sizeof(WebcitHandler));
34 NewHandler->Flags = Flags;
35 NewHandler->Name = NewStrBufPlain(UrlString, UrlSLen);
36 StrBufShrinkToFit(NewHandler->Name, 1);
37 NewHandler->DisplayName = NewStrBufPlain(DisplayName, dslen);
38 StrBufShrinkToFit(NewHandler->DisplayName, 1);
39 Put(HandlerHash, UrlString, UrlSLen, NewHandler, DeleteWebcitHandler);
42 void tmplput_HANDLER_DISPLAYNAME(StrBuf *Target, WCTemplputParams *TP)
45 if (WCC->Hdr->HR.Handler != NULL)
46 StrBufAppendTemplate(Target, TP, WCC->Hdr->HR.Handler->DisplayName, 0);
49 void tmplput_HOST_DISPLAYNAME(StrBuf *Target, WCTemplputParams *TP)
52 StrBufAppendTemplate(Target, TP, WCC->Hdr->HR.http_host, 0);
56 * web-printing funcion. uses our vsnprintf wrapper
58 #ifdef UBER_VERBOSE_DEBUGGING
59 void wcc_printf(const char *FILE, const char *FUNCTION, long LINE, const char *format,...)
61 void wc_printf(const char *format,...)
67 if (WCC->WBuf == NULL)
68 WCC->WBuf = NewStrBuf();
69 #ifdef UBER_VERBOSE_DEBUGGING
70 StrBufAppendPrintf(WCC->WBuf, "\n%s:%s:%d[", FILE, FUNCTION, LINE);
73 va_start(arg_ptr, format);
74 StrBufVAppendPrintf(WCC->WBuf, format, arg_ptr);
76 #ifdef UBER_VERBOSE_DEBUGGING
77 StrBufAppendPrintf(WCC->WBuf, "]\n");
82 * http-header-printing funcion. uses our vsnprintf wrapper
84 void hprintf(const char *format,...)
89 va_start(arg_ptr, format);
90 StrBufVAppendPrintf(WCC->HBuf, format, arg_ptr);
97 * wrap up an HTTP session, closes tags, etc.
99 * print_standard_html_footer should be set to:
100 * 0 - to transmit only,
101 * nonzero - to append the closing tags
103 void wDumpContent(int print_standard_html_footer)
105 if (print_standard_html_footer) {
106 wc_printf("</div> <!-- end of 'content' div -->\n");
107 do_template("trailing", NULL);
110 /* If we've been saving it all up for one big output burst,
111 * go ahead and do that now.
120 * Output HTTP headers and leading HTML for a page
122 void output_headers( int do_httpheaders, /* 1 = output HTTP headers */
123 int do_htmlhead, /* 1 = output HTML <head> section and <body> opener */
125 int do_room_banner, /* 0=no, 1=yes,
126 * 2 = I'm going to embed my own, so don't open the
127 * <div id="content"> either.
130 int unset_cookies, /* 1 = session is terminating, so unset the cookies */
131 int suppress_check, /* 1 = suppress check for instant messages */
132 int cache /* 1 = allow browser to cache this page */
137 hprintf("HTTP/1.1 200 OK\n");
138 http_datestring(httpnow, sizeof httpnow, time(NULL));
140 if (do_httpheaders) {
141 if (WCC->serv_info != NULL)
142 hprintf("Content-type: text/html; charset=utf-8\r\n"
144 "Connection: close\r\n",
146 ChrPtr(WCC->serv_info->serv_software));
148 hprintf("Content-type: text/html; charset=utf-8\r\n"
149 "Server: %s / [n/a]\n"
150 "Connection: close\r\n",
155 char httpTomorow[128];
157 http_datestring(httpTomorow, sizeof httpTomorow,
158 time(NULL) + 60 * 60 * 24 * 2);
160 hprintf("Pragma: public\r\n"
161 "Cache-Control: max-age=3600, must-revalidate\r\n"
162 "Last-modified: %s\r\n"
169 hprintf("Pragma: no-cache\r\n"
170 "Cache-Control: no-store\r\n"
175 if (cache < 2) stuff_to_cookie(unset_cookies);
179 do_template("head", NULL);
181 /* check for ImportantMessages (these display in a div overlaying the main screen) */
182 if (!IsEmptyStr(WCC->ImportantMessage)) {
183 wc_printf("<div id=\"important_message\">\n"
184 "<span class=\"imsg\">");
185 StrEscAppend(WCC->WBuf, NULL, WCC->ImportantMessage, 0, 0);
186 wc_printf("</span><br />\n"
189 StrBufAppendBufPlain(WCC->trailing_javascript,
190 HKEY("setTimeout('hide_imsg_popup()', 5000); \n"),
193 WCC->ImportantMessage[0] = 0;
195 else if (StrLength(WCC->ImportantMsg) > 0) {
196 wc_printf("<div id=\"important_message\">\n"
197 "<span class=\"imsg\">");
198 StrEscAppend(WCC->WBuf, WCC->ImportantMsg, NULL, 0, 0);
199 wc_printf("</span><br />\n"
202 StrBufAppendBufPlain(WCC->trailing_javascript,
203 HKEY("setTimeout('hide_imsg_popup()', 5000); \n"),
206 FlushStrBuf(WCC->ImportantMsg);
208 if ( (WCC->logged_in) && (!unset_cookies) ) {
209 DoTemplate(HKEY("paging"), NULL, &NoCtx);
212 if (do_room_banner == 1) {
213 tmplput_roombanner(NULL, NULL);
217 if (do_room_banner == 1) {
218 wc_printf("<div id=\"content\">\n");
222 void output_custom_content_header(const char *ctype) {
223 hprintf("HTTP/1.1 200 OK\r\n");
224 hprintf("Content-type: %s; charset=utf-8\r\n",ctype);
225 hprintf("Server: %s / %s\r\n", PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software));
226 hprintf("Connection: close\r\n");
231 * Generic function to do an HTTP redirect. Easy and fun.
233 void http_redirect(const char *whichpage) {
234 hprintf("HTTP/1.1 302 Moved Temporarily\n");
235 hprintf("Location: %s\r\n", whichpage);
236 hprintf("URI: %s\r\n", whichpage);
237 hprintf("Content-type: text/html; charset=utf-8\r\n");
239 wc_printf("<html><body>");
240 wc_printf("Go <a href=\"%s\">here</A>.", whichpage);
241 wc_printf("</body></html>\n");
248 * Output a piece of content to the web browser using conformant HTTP and MIME semantics
250 void http_transmit_thing(const char *content_type,
254 lprintf(9, "http_transmit_thing(%s)%s\n",
256 ((is_static > 0) ? " (static)" : "")
259 output_headers(0, 0, 0, 0, 0, is_static);
261 hprintf("Content-type: %s\r\n"
263 "Connection: close\r\n",
272 * Convenience functions to display a page containing only a string
274 * titlebarcolor color of the titlebar of the frame
275 * titlebarmsg text to display in the title bar
276 * messagetext body of the box
278 void convenience_page(const char *titlebarcolor, const char *titlebarmsg, const char *messagetext)
280 hprintf("HTTP/1.1 200 OK\n");
281 output_headers(1, 1, 2, 0, 0, 0);
282 wc_printf("<div id=\"banner\">\n");
283 wc_printf("<table width=100%% border=0 bgcolor=\"#%s\"><tr><td>", titlebarcolor);
284 wc_printf("<span class=\"titlebar\">%s</span>\n", titlebarmsg);
285 wc_printf("</td></tr></table>\n");
286 wc_printf("</div>\n<div id=\"content\">\n");
287 escputs(messagetext);
289 wc_printf("<hr />\n");
295 * Display a blank page.
297 void blank_page(void) {
298 output_headers(1, 1, 0, 0, 0, 0);
304 * A template has been requested
306 void url_do_template(void) {
307 const StrBuf *MimeType;
308 const StrBuf *Tmpl = sbstr("template");
310 MimeType = DoTemplate(SKEY(Tmpl), NULL, &NoCtx);
311 http_transmit_thing(ChrPtr(MimeType), 0);
317 * convenience function to indicate success
319 void display_success(char *successmessage)
321 convenience_page("007700", "OK", successmessage);
326 * Authorization required page
327 * This is probably temporary and should be revisited
329 void authorization_required(void)
332 const char *message = "";
334 hprintf("HTTP/1.1 401 Authorization Required\r\n");
336 "Server: %s / %s\r\n"
337 "Connection: close\r\n",
338 PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software)
340 hprintf("WWW-Authenticate: Basic realm=\"%s\"\r\n", ChrPtr(WC->serv_info->serv_humannode));
341 hprintf("Content-Type: text/html\r\n");
344 wc_printf(_("Authorization Required"));
345 wc_printf("</h1>\r\n");
348 if (WCC->ImportantMsg != NULL)
349 message = ChrPtr(WCC->ImportantMsg);
350 else if (WCC->ImportantMessage != NULL)
351 message = WCC->ImportantMessage;
353 wc_printf(_("The resource you requested requires a valid username and password. "
354 "You could not be logged in: %s\n"), message);
356 end_webcit_session();
360 * Convenience functions to wrap around asynchronous ajax responses
362 void begin_ajax_response(void) {
365 FlushStrBuf(WCC->HBuf);
366 output_headers(0, 0, 0, 0, 0, 0);
368 hprintf("Content-type: text/html; charset=UTF-8\r\n"
370 "Connection: close\r\n"
377 * print ajax response footer
379 void end_ajax_response(void) {
386 * Wraps a Citadel server command in an AJAX transaction.
388 void ajax_servcmd(void)
396 begin_ajax_response();
398 serv_puts(bstr("g_cmd"));
399 StrBuf_ServGetln(Buf);
400 StrBufAppendBuf(WCC->WBuf, Buf, 0);
401 StrBufAppendBufPlain(WCC->WBuf, HKEY("\n"), 0);
403 switch (GetServerStatus(Buf, NULL)) {
405 serv_puts("\n\n000");
406 if ( (StrLength(Buf)==3) &&
407 !strcmp(ChrPtr(Buf), "000")) {
408 StrBufAppendBufPlain(WCC->WBuf, HKEY("\000"), 0);
413 StrBuf_ServGetln(Buf);
414 if ( (StrLength(Buf)==3) &&
415 !strcmp(ChrPtr(Buf), "000")) {
418 StrBufAppendBuf(WCC->WBuf, Buf, 0);
419 StrBufAppendBufPlain(WCC->WBuf, HKEY("\n"), 0);
423 text_to_server(bstr("g_input"));
427 len = atol(&ChrPtr(Buf)[4]);
428 StrBuf_ServGetBLOBBuffered(Buf, len);
431 len = atol(&ChrPtr(Buf)[4]);
433 memset(junk, 0, len);
434 serv_write(junk, len);
441 * This is kind of an ugly hack, but this is the only place it can go.
442 * If the command was GEXP, then the instant messenger window must be
443 * running, so reset the "last_pager_check" watchdog timer so
444 * that page_popup() doesn't try to open it a second time.
446 if (!strncasecmp(bstr("g_cmd"), "GEXP", 4)) {
447 WCC->last_pager_check = time(NULL);
454 * Helper function for the asynchronous check to see if we need
455 * to open the instant messenger window.
457 void seconds_since_last_gexp(void)
461 if ( (time(NULL) - WC->last_pager_check) < 30) {
467 serv_getln(buf, sizeof buf);
479 int ReadPostData(void)
484 StrBuf *content = NULL;
486 content = NewStrBufPlain(NULL, WCC->Hdr->HR.ContentLength + 256);
488 StrBufPrintf(content,
490 "Content-length: %ld\n\n",
491 ChrPtr(WCC->Hdr->HR.ContentType),
492 WCC->Hdr->HR.ContentLength);
494 hprintf("Content-type: %s\n"
495 "Content-length: %d\n\n",
496 ContentType, ContentLength);
498 body_start = StrLength(content);
500 /** Read the entire input data at once. */
501 rc = client_read_to(WCC->Hdr, content,
502 WCC->Hdr->HR.ContentLength,
508 if (!strncasecmp(ChrPtr(WCC->Hdr->HR.ContentType), "application/x-www-form-urlencoded", 33)) {
509 StrBufCutLeft(content, body_start);
510 ParseURLParams(content);
511 } else if (!strncasecmp(ChrPtr(WCC->Hdr->HR.ContentType), "multipart", 9)) {
516 len = StrLength(content);
517 Buf = SmashStrBuf(&content);
519 mime_parser(Buf, BufEnd, *upload_handler, NULL, NULL, NULL, 0);
521 } else if (WCC->Hdr->HR.ContentLength > 0) {
522 WCC->upload = content;
523 WCC->upload_length = StrLength(WCC->upload);
526 FreeStrBuf(&content);
531 void ParseREST_URL(void)
534 StrBuf *pFloor = NULL;
537 const char *pCh = NULL;
541 lprintf(1, "parsing rest URL: %s\n", ChrPtr(WCC->Hdr->HR.ReqLine));
543 WCC->Directory = NewHash(1, Flathash);
544 WCC->CurrentFloor = NULL;
547 while (StrBufExtract_NextToken(Buf, WCC->Hdr->HR.ReqLine, &pCh, '/') >= 0)
549 if (StrLength(Buf) != 0) {
550 /* ignore empty path segments */
551 StrBufUnescape(Buf, 1);
552 Put(WCC->Directory, IKEY(i), Buf, HFreeStrBuf);
563 Floors = GetFloorListHash(NULL, NULL);
567 if (GetHash(WCC->FloorsByName, SKEY(pFloor), &vFloor))
568 WCC->CurrentFloor = (Floor*) vFloor;
573 int Conditional_REST_DEPTH(StrBuf *Target, WCTemplputParams *TP)
579 if (WCC->Hdr->HR.Handler != NULL)
581 Depth = GetTemplateTokenNumber(Target, TP, 2, 0);
582 IsDepth = GetCount(WCC->Directory) + offset;
584 // LogTemplateError(Target, "bla", 1, TP, "REST_DEPTH: %ld : %ld\n", Depth, IsDepth);
587 return IsDepth > Depth;
590 return Depth == IsDepth;
596 * Entry point for WebCit transaction
598 void session_loop(void)
605 * We stuff these with the values coming from the client cookies,
606 * so we can use them to reconnect a timed out session if we have to.
611 WCC->upload_length = 0;
614 WCC->Hdr->nWildfireHeaders = 0;
615 if (WCC->Hdr->HR.Handler != NULL)
616 Flags = WCC->Hdr->HR.Handler->Flags; /* so we can temporarily add our own... */
618 if (WCC->Hdr->HR.ContentLength > 0) {
619 if (ReadPostData() < 0) {
625 WCC->trailing_javascript = NewStrBuf();
627 /* If there are variables in the URL, we must grab them now */
628 if (WCC->Hdr->PlainArgs != NULL)
629 ParseURLParams(WCC->Hdr->PlainArgs);
631 /* If the client sent a nonce that is incorrect, kill the request. */
632 if (havebstr("nonce")) {
633 lprintf(9, "Comparing supplied nonce %s to session nonce %ld\n",
634 bstr("nonce"), WCC->nonce);
635 if (ibstr("nonce") != WCC->nonce) {
636 lprintf(9, "Ignoring request with mismatched nonce.\n");
637 hprintf("HTTP/1.1 404 Security check failed\r\n");
638 hprintf("Content-Type: text/plain\r\n");
640 wc_printf("Security check failed.\r\n");
642 goto SKIP_ALL_THIS_CRAP;
647 * If we're not connected to a Citadel server, try to hook up the
650 if (!WCC->connected) {
652 goto SKIP_ALL_THIS_CRAP;
657 * If we're not logged in, but we have authentication data (either from
658 * a cookie or from http-auth), try logging in to Citadel using that.
660 if ((!WCC->logged_in)
661 && (StrLength(WCC->Hdr->c_username) > 0)
662 && (StrLength(WCC->Hdr->c_password) > 0))
667 serv_printf("USER %s", ChrPtr(WCC->Hdr->c_username));
668 StrBuf_ServGetln(Buf);
669 if (GetServerStatus(Buf, &Status) == 3) {
670 serv_printf("PASS %s", ChrPtr(WCC->Hdr->c_password));
671 StrBuf_ServGetln(Buf);
672 if (GetServerStatus(Buf, NULL) == 2) {
673 become_logged_in(WCC->Hdr->c_username,
674 WCC->Hdr->c_password, Buf);
676 /* Should only display when password is wrong */
677 WCC->ImportantMsg = NewStrBufPlain(ChrPtr(Buf) + 4, StrLength(Buf) - 4);
678 authorization_required();
680 goto SKIP_ALL_THIS_CRAP;
683 else if (Status == 541) {
688 xhttp = (WCC->Hdr->HR.eReqType != eGET) &&
689 (WCC->Hdr->HR.eReqType != ePOST) &&
690 (WCC->Hdr->HR.eReqType != eHEAD);
693 * If a 'gotofirst' parameter has been specified, attempt to goto that room
694 * prior to doing anything else.
696 if (havebstr("gotofirst")) {
698 ret = gotoroom(sbstr("gotofirst")); /* do quietly to avoid session output! */
699 if ((ret/100) != 2) {
700 lprintf(1, "GOTOFIRST: Unable to change to [%s]; Reason: %d\n",
701 bstr("gotofirst"), ret);
706 * If we aren't in any room yet, but we have cookie data telling us where we're
707 * supposed to be, and 'gotofirst' was not specified, then go there.
709 else if ( (StrLength(WCC->CurRoom.name) == 0) && ( (StrLength(WCC->Hdr->c_roomname) > 0) )) {
712 lprintf(9, "We are in '%s' but cookie indicates '%s', going there...\n",
713 ChrPtr(WCC->CurRoom.name),
714 ChrPtr(WCC->Hdr->c_roomname)
716 ret = gotoroom(WCC->Hdr->c_roomname); /* do quietly to avoid session output! */
717 if ((ret/100) != 2) {
718 lprintf(1, "COOKIEGOTO: Unable to change to [%s]; Reason: %d\n",
719 ChrPtr(WCC->Hdr->c_roomname), ret);
723 if (WCC->Hdr->HR.Handler != NULL) {
724 if (!WCC->logged_in && ((WCC->Hdr->HR.Handler->Flags & ANONYMOUS) == 0)) {
729 if ((WCC->Hdr->HR.Handler->Flags & PARSE_REST_URL) != 0)
732 if ((WCC->Hdr->HR.Handler->Flags & AJAX) != 0)
733 begin_ajax_response();
734 WCC->Hdr->HR.Handler->F();
735 if ((WCC->Hdr->HR.Handler->Flags & AJAX) != 0)
739 /* When all else fais, display the main menu. */
742 * ordinary browser users get a nice login screen, DAV etc. requsets
743 * are given a 401 so they can handle it appropriate.
745 if (!WCC->logged_in) {
747 authorization_required();
752 * Toplevel dav requests? or just a flat browser request?
769 * Replacement for sleep() that uses select() in order to avoid SIGALRM
771 void sleeeeeeeeeep(int seconds)
777 select(0, NULL, NULL, NULL, &tv);
780 int Conditional_IS_HTTPS(StrBuf *Target, WCTemplputParams *TP)
782 return is_https != 0;
785 void AppendImportantMessage(const char *pch, long len)
789 if (StrLength(WCC->ImportantMsg) > 0) {
790 StrBufAppendBufPlain(WCC->ImportantMsg, HKEY("\n"), 0);
793 StrBufAppendBufPlain(WCC->ImportantMsg, pch, len, 0);
796 int ConditionalImportantMesage(StrBuf *Target, WCTemplputParams *TP)
800 return ((!IsEmptyStr(WCC->ImportantMessage)) ||
801 (StrLength(WCC->ImportantMsg) > 0));
806 void tmplput_importantmessage(StrBuf *Target, WCTemplputParams *TP)
811 if (!IsEmptyStr(WCC->ImportantMessage)) {
812 StrEscAppend(Target, NULL, WCC->ImportantMessage, 0, 0);
813 WCC->ImportantMessage[0] = '\0';
815 else if (StrLength(WCC->ImportantMsg) > 0) {
816 StrEscAppend(Target, WCC->ImportantMsg, NULL, 0, 0);
817 FlushStrBuf(WCC->ImportantMsg);
822 void tmplput_trailing_javascript(StrBuf *Target, WCTemplputParams *TP)
827 StrBufAppendTemplate(Target, TP, WCC->trailing_javascript, 0);
830 void tmplput_csslocal(StrBuf *Target, WCTemplputParams *TP)
832 StrBufAppendBuf(Target,
836 extern char static_local_dir[PATH_MAX];
844 WebcitAddUrlHandler(HKEY("blank"), "", 0, blank_page, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC);
845 WebcitAddUrlHandler(HKEY("do_template"), "", 0, url_do_template, ANONYMOUS);
846 WebcitAddUrlHandler(HKEY("sslg"), "", 0, seconds_since_last_gexp, AJAX|LOGCHATTY);
847 WebcitAddUrlHandler(HKEY("ajax_servcmd"), "", 0, ajax_servcmd, 0);
848 WebcitAddUrlHandler(HKEY("webcit"), "", 0, blank_page, URLNAMESPACE);
850 WebcitAddUrlHandler(HKEY("401"), "", 0, authorization_required, ANONYMOUS|COOKIEUNNEEDED);
851 RegisterConditional(HKEY("COND:IMPMSG"), 0, ConditionalImportantMesage, CTX_NONE);
852 RegisterConditional(HKEY("COND:REST:DEPTH"), 0, Conditional_REST_DEPTH, CTX_NONE);
853 RegisterConditional(HKEY("COND:IS_HTTPS"), 0, Conditional_IS_HTTPS, CTX_NONE);
855 RegisterNamespace("CSSLOCAL", 0, 0, tmplput_csslocal, NULL, CTX_NONE);
856 RegisterNamespace("IMPORTANTMESSAGE", 0, 0, tmplput_importantmessage, NULL, CTX_NONE);
857 RegisterNamespace("TRAILING_JAVASCRIPT", 0, 0, tmplput_trailing_javascript, NULL, CTX_NONE);
858 RegisterNamespace("URL:DISPLAYNAME", 0, 1, tmplput_HANDLER_DISPLAYNAME, NULL, CTX_NONE);
859 RegisterNamespace("URL:HOSTNAME", 0, 1, tmplput_HOST_DISPLAYNAME, NULL, CTX_NONE);
862 snprintf(dir, SIZ, "%s/webcit.css", static_local_dir);
863 if (!access(dir, R_OK)) {
864 lprintf(9, "Using local Stylesheet [%s]\n", dir);
865 csslocal = NewStrBufPlain(HKEY("<link href=\"static.local/webcit.css\" rel=\"stylesheet\" type=\"text/css\" />"));
868 lprintf(9, "No Site-local Stylesheet [%s] installed. \n", dir);
873 ServerStartModule_WEBCIT
876 HandlerHash = NewHash(1, NULL);
881 ServerShutdownModule_WEBCIT
884 FreeStrBuf(&csslocal);
885 DeleteHash(&HandlerHash);
891 SessionNewModule_WEBCIT
894 sess->ImportantMsg = NewStrBuf();
895 sess->WBuf = NewStrBufPlain(NULL, SIZ * 4);
896 sess->HBuf = NewStrBufPlain(NULL, SIZ / 4);
900 SessionDetachModule_WEBCIT
903 DeleteHash(&sess->Directory);
905 FreeStrBuf(&sess->upload);
906 sess->upload_length = 0;
908 FreeStrBuf(&sess->trailing_javascript);
910 if (StrLength(sess->WBuf) > SIZ * 30) /* Bigger than 120K? release. */
912 FreeStrBuf(&sess->WBuf);
913 sess->WBuf = NewStrBuf();
916 FlushStrBuf(sess->WBuf);
917 FlushStrBuf(sess->HBuf);
921 SessionDestroyModule_WEBCIT
924 FreeStrBuf(&sess->WBuf);
925 FreeStrBuf(&sess->HBuf);
926 FreeStrBuf(&sess->ImportantMsg);