4 * This is the main transaction loop of the web service. It maintains a
5 * persistent session to the Citadel server, handling HTTP WebCit requests as
6 * they arrive and presenting a user interface.
9 #define SHOW_ME_VAPPEND_PRINTF
12 #include "webserver.h"
18 * String to unset the cookie.
19 * Any date "in the past" will work, so I chose my birthday, right down to
20 * the exact minute. :)
22 static char *unset = "; expires=28-May-1971 18:10:00 GMT";
24 HashList *HandlerHash = NULL;
26 void WebcitAddUrlHandler(const char * UrlString,
31 WebcitHandler *NewHandler;
33 if (HandlerHash == NULL)
34 HandlerHash = NewHash(1, NULL);
36 NewHandler = (WebcitHandler*) malloc(sizeof(WebcitHandler));
38 NewHandler->Flags = Flags;
39 Put(HandlerHash, UrlString, UrlSLen, NewHandler, NULL);
43 * remove escaped strings from i.e. the url string (like %20 for blanks)
45 long unescape_input(char *buf)
54 while ((buflen > 0) && (isspace(buf[buflen - 1]))){
64 /* don't let % chars through, rather truncate the input. */
74 sscanf(hex, "%02x", &b);
78 memmove(&buf[a + 1], &buf[a + 3], len);
88 void free_url(void *U)
90 urlcontent *u = (urlcontent*) U;
91 FreeStrBuf(&u->url_data);
96 * Extract variables from the URL.
98 void addurls(StrBuf *url)
100 const char *aptr, *bptr, *eptr, *up;
104 struct wcsession *WCC = WC;
106 if (WCC->urlstrings == NULL)
107 WCC->urlstrings = NewHash(1, NULL);
108 // buf = (char*) malloc (ulen + 1);
109 // memcpy(buf, url, ulen);
110 /// buf[ulen] = '\0';
111 eptr = ChrPtr(url) + StrLength(url);
113 while ((up < eptr) && (!IsEmptyStr(up))) {
115 while ((aptr < eptr) && (*aptr != '\0') && (*aptr != '='))
124 while ((bptr < eptr) && (*bptr != '\0')
125 && (*bptr != '&') && (*bptr != '?') && (*bptr != ' ')) {
129 keylen = aptr - up - 1; /* -1 -> '=' */
130 if(keylen > sizeof(u->url_key)) {
131 lprintf(1, "URLkey to long! [%s]", up);
135 u = (urlcontent *) malloc(sizeof(urlcontent));
136 memcpy(u->url_key, up, keylen);
137 u->url_key[keylen] = '\0';
139 lprintf(1, "URLkey to long! [%s]", up);
144 Put(WCC->urlstrings, u->url_key, keylen, u, free_url);
146 u->url_data = NewStrBufPlain(aptr, len);
147 StrBufUnescape(u->url_data, 1);
151 #ifdef DEBUG_URLSTRINGS
152 lprintf(9, "%s = [%ld] %s\n", u->url_key, u->url_data_size, ChrPtr(u->url_data));
159 * free urlstring memory
163 DeleteHash(&WC->urlstrings);
167 * Diagnostic function to display the contents of all variables
172 struct wcsession *WCC = WC;
179 Cursor = GetNewHashPos ();
180 while (GetNextHashPos(WCC->urlstrings, Cursor, &HKLen, &HKey, &U)) {
182 wprintf("%38s = %s\n", u->url_key, ChrPtr(u->url_data));
187 * Return the value of a variable supplied to the current web page (from the url or a form)
190 const char *XBstr(const char *key, size_t keylen, size_t *len)
194 if ((WC->urlstrings != NULL) &&
195 GetHash(WC->urlstrings, key, keylen, &U)) {
196 *len = StrLength(((urlcontent *)U)->url_data);
197 return ChrPtr(((urlcontent *)U)->url_data);
205 const char *XBSTR(const char *key, size_t *len)
209 if ((WC->urlstrings != NULL) &&
210 GetHash(WC->urlstrings, key, strlen (key), &U)){
211 *len = StrLength(((urlcontent *)U)->url_data);
212 return ChrPtr(((urlcontent *)U)->url_data);
221 const char *BSTR(const char *key)
225 if ((WC->urlstrings != NULL) &&
226 GetHash(WC->urlstrings, key, strlen (key), &U))
227 return ChrPtr(((urlcontent *)U)->url_data);
232 const char *Bstr(const char *key, size_t keylen)
236 if ((WC->urlstrings != NULL) &&
237 GetHash(WC->urlstrings, key, keylen, &U))
238 return ChrPtr(((urlcontent *)U)->url_data);
243 const StrBuf *SBSTR(const char *key)
247 if ((WC->urlstrings != NULL) &&
248 GetHash(WC->urlstrings, key, strlen (key), &U))
249 return ((urlcontent *)U)->url_data;
254 const StrBuf *SBstr(const char *key, size_t keylen)
258 if ((WC->urlstrings != NULL) &&
259 GetHash(WC->urlstrings, key, keylen, &U))
260 return ((urlcontent *)U)->url_data;
265 long LBstr(const char *key, size_t keylen)
269 if ((WC->urlstrings != NULL) &&
270 GetHash(WC->urlstrings, key, keylen, &U))
271 return StrTol(((urlcontent *)U)->url_data);
276 long LBSTR(const char *key)
280 if ((WC->urlstrings != NULL) &&
281 GetHash(WC->urlstrings, key, strlen(key), &U))
282 return StrTol(((urlcontent *)U)->url_data);
287 int IBstr(const char *key, size_t keylen)
291 if ((WC->urlstrings != NULL) &&
292 GetHash(WC->urlstrings, key, keylen, &U))
293 return StrTol(((urlcontent *)U)->url_data);
298 int IBSTR(const char *key)
302 if ((WC->urlstrings != NULL) &&
303 GetHash(WC->urlstrings, key, strlen(key), &U))
304 return StrToi(((urlcontent *)U)->url_data);
309 int HaveBstr(const char *key, size_t keylen)
313 if ((WC->urlstrings != NULL) &&
314 GetHash(WC->urlstrings, key, keylen, &U))
315 return (StrLength(((urlcontent *)U)->url_data) != 0);
320 int HAVEBSTR(const char *key)
324 if ((WC->urlstrings != NULL) &&
325 GetHash(WC->urlstrings, key, strlen(key), &U))
326 return (StrLength(((urlcontent *)U)->url_data) != 0);
332 int YesBstr(const char *key, size_t keylen)
336 if ((WC->urlstrings != NULL) &&
337 GetHash(WC->urlstrings, key, keylen, &U))
338 return strcmp( ChrPtr(((urlcontent *)U)->url_data), "yes") == 0;
343 int YESBSTR(const char *key)
347 if ((WC->urlstrings != NULL) &&
348 GetHash(WC->urlstrings, key, strlen(key), &U))
349 return strcmp( ChrPtr(((urlcontent *)U)->url_data), "yes") == 0;
355 * web-printing funcion. uses our vsnprintf wrapper
357 void wprintf(const char *format,...)
359 struct wcsession *WCC = WC;
362 if (WCC->WBuf == NULL)
363 WCC->WBuf = NewStrBuf();
365 va_start(arg_ptr, format);
366 StrBufVAppendPrintf(WCC->WBuf, format, arg_ptr);
369 /// if (StrLength(WCC-WBuf) > 2048)
370 ///client_write(wbuf, strlen(wbuf));
374 * http-header-printing funcion. uses our vsnprintf wrapper
376 void hprintf(const char *format,...)
378 struct wcsession *WCC = WC;
381 va_start(arg_ptr, format);
382 StrBufVAppendPrintf(WCC->HBuf, format, arg_ptr);
385 /// if (StrLength(WCC-WBuf) > 2048)
386 ///client_write(wbuf, strlen(wbuf));
391 * wrap up an HTTP session, closes tags, etc.
393 * print_standard_html_footer should be set to:
394 * 0 to transmit only,
395 * 1 to append the main menu and closing tags,
396 * 2 to append the closing tags only.
398 void wDumpContent(int print_standard_html_footer)
400 if (print_standard_html_footer) {
401 wprintf("</div>\n"); /* end of "text" div */
402 do_template("trailing", NULL);
405 /* If we've been saving it all up for one big output burst,
406 * go ahead and do that now.
414 * Copy a string, escaping characters which have meaning in HTML.
416 * target target buffer
417 * strbuf source buffer
418 * nbsp If nonzero, spaces are converted to non-breaking spaces.
419 * nolinebreaks if set, linebreaks are removed from the string.
421 long stresc(char *target, long tSize, char *strbuf, int nbsp, int nolinebreaks)
423 char *aptr, *bptr, *eptr;
428 eptr = target + tSize - 6; // our biggest unit to put in...
431 while ((bptr < eptr) && !IsEmptyStr(aptr) ){
433 memcpy(bptr, "<", 4);
436 else if (*aptr == '>') {
437 memcpy(bptr, ">", 4);
440 else if (*aptr == '&') {
441 memcpy(bptr, "&", 5);
444 else if (*aptr == '\"') {
445 memcpy(bptr, """, 6);
448 else if (*aptr == '\'') {
449 memcpy(bptr, "'", 5);
452 else if (*aptr == LB) {
456 else if (*aptr == RB) {
460 else if (*aptr == QU) {
464 else if ((*aptr == 32) && (nbsp == 1)) {
465 memcpy(bptr, " ", 6);
468 else if ((*aptr == '\n') && (nolinebreaks)) {
469 *bptr='\0'; /* nothing */
471 else if ((*aptr == '\r') && (nolinebreaks)) {
472 *bptr='\0'; /* nothing */
481 if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
483 return (bptr - target);
487 void escputs1(char *strbuf, int nbsp, int nolinebreaks)
489 StrEscAppend(WC->WBuf, NULL, strbuf, nbsp, nolinebreaks);
492 void StrEscputs1(const StrBuf *strbuf, int nbsp, int nolinebreaks)
494 StrEscAppend(WC->WBuf, strbuf, NULL, nbsp, nolinebreaks);
498 * static wrapper for ecsputs1
500 void escputs(char *strbuf)
502 escputs1(strbuf, 0, 0);
507 * static wrapper for ecsputs1
509 void StrEscPuts(const StrBuf *strbuf)
511 StrEscputs1(strbuf, 0, 0);
516 * urlescape buffer and print it to the client
518 void urlescputs(const char *strbuf)
520 StrBufUrlescAppend(WC->WBuf, NULL, strbuf);
524 * urlescape buffer and print it to the client
526 void UrlescPutStrBuf(const StrBuf *strbuf)
528 StrBufUrlescAppend(WC->WBuf, strbuf, NULL);
532 * urlescape buffer and print it as header
534 void hurlescputs(const char *strbuf)
536 StrBufUrlescAppend(WC->HBuf, NULL, strbuf);
541 * Copy a string, escaping characters for JavaScript strings.
543 void jsesc(char *target, size_t tlen, char *strbuf)
552 len = strlen (strbuf);
554 tend = target + tlen;
558 while (!IsEmptyStr(sptr) &&
564 else if (*sptr == '>')
566 else if (*sptr == '\'') {
572 else if (*sptr == '"') {
582 else if (*sptr == '&') {
599 * escape and print javascript
601 void jsescputs(char *strbuf)
605 jsesc(outbuf, SIZ, strbuf);
606 wprintf("%s", outbuf);
610 * print a string to the client after cleaning it with msgesc() and stresc()
612 void msgescputs1( char *strbuf)
614 StrBuf *OutBuf = NewStrBuf();
616 if ((strbuf == NULL) || IsEmptyStr(strbuf))
618 StrMsgEscAppend(OutBuf, NULL, strbuf);
619 StrEscAppend(WC->WBuf, OutBuf, NULL, 0, 0);
624 * print a string to the client after cleaning it with msgesc()
626 void msgescputs(char *strbuf) {
627 if ((strbuf != NULL) && !IsEmptyStr(strbuf))
628 StrMsgEscAppend(WC->WBuf, NULL, strbuf);
635 * Output HTTP headers and leading HTML for a page
637 void output_headers( int do_httpheaders, /* 1 = output HTTP headers */
638 int do_htmlhead, /* 1 = output HTML <head> section and <body> opener */
640 int do_room_banner, /* 0=no, 1=yes,
641 * 2 = I'm going to embed my own, so don't open the
642 * <div id="content"> either.
645 int unset_cookies, /* 1 = session is terminating, so unset the cookies */
646 int suppress_check, /* 1 = suppress check for instant messages */
647 int cache /* 1 = allow browser to cache this page */
652 hprintf("HTTP/1.1 200 OK\n");
653 http_datestring(httpnow, sizeof httpnow, time(NULL));
655 if (do_httpheaders) {
656 hprintf("Content-type: text/html; charset=utf-8\r\n"
658 "Connection: close\r\n",
659 PACKAGE_STRING, serv_info.serv_software
664 char httpTomorow[128];
666 http_datestring(httpTomorow, sizeof httpTomorow,
667 time(NULL) + 60 * 60 * 24 * 2);
669 hprintf("Pragma: public\r\n"
670 "Cache-Control: max-age=3600, must-revalidate\r\n"
671 "Last-modified: %s\r\n"
678 hprintf("Pragma: no-cache\r\n"
679 "Cache-Control: no-store\r\n"
684 stuff_to_cookie(cookie, 1024, WC->wc_session, WC->wc_username,
685 WC->wc_password, WC->wc_roomname);
688 hprintf("Set-cookie: webcit=%s; path=/\r\n", unset);
690 hprintf("Set-cookie: webcit=%s; path=/\r\n", cookie);
691 if (server_cookie != NULL) {
692 hprintf("%s\n", server_cookie);
698 if (!access("static.local/webcit.css", R_OK)) {
699 svprintf(HKEY("CSSLOCAL"), WCS_STRING,
700 "<link href=\"static.local/webcit.css\" rel=\"stylesheet\" type=\"text/css\">"
703 do_template("head", NULL);
710 /* check for ImportantMessages (these display in a div overlaying the main screen) */
711 if (!IsEmptyStr(WC->ImportantMessage)) {
712 wprintf("<div id=\"important_message\">\n"
713 "<span class=\"imsg\">");
714 escputs(WC->ImportantMessage);
715 wprintf("</span><br />\n"
717 "<script type=\"text/javascript\">\n"
718 " setTimeout('hide_imsg_popup()', 5000); \n"
720 WC->ImportantMessage[0] = 0;
723 if ( (WC->logged_in) && (!unset_cookies) ) {
724 wprintf("<div id=\"iconbar\">");
725 do_selected_iconbar();
726 /** check for instant messages (these display in a new window) */
731 if (do_room_banner == 1) {
732 wprintf("<div id=\"banner\">\n");
733 embed_room_banner(NULL, navbar_default);
738 if (do_room_banner == 1) {
739 wprintf("<div id=\"content\">\n");
745 * Generic function to do an HTTP redirect. Easy and fun.
747 void http_redirect(const char *whichpage) {
748 hprintf("HTTP/1.1 302 Moved Temporarily\n");
749 hprintf("Location: %s\r\n", whichpage);
750 hprintf("URI: %s\r\n", whichpage);
751 hprintf("Content-type: text/html; charset=utf-8\r\n");
752 wprintf("<html><body>");
753 wprintf("Go <a href=\"%s\">here</A>.", whichpage);
754 wprintf("</body></html>\n");
761 * Output a piece of content to the web browser using conformant HTTP and MIME semantics
763 void http_transmit_thing(const char *content_type,
766 output_headers(0, 0, 0, 0, 0, is_static);
768 hprintf("Content-type: %s\r\n"
770 "Connection: close\r\n",
778 * print menu box like used in the floor view or admin interface.
779 * This function takes pair of strings as va_args,
780 * Title Title string of the box
781 * Class CSS Class for the box
782 * nLines How many string pairs should we print? (URL, UrlText)
783 * ... Pairs of URL Strings and their Names
785 void print_menu_box(char* Title, char *Class, int nLines, ...)
790 svput("BOXTITLE", WCS_STRING, Title);
791 do_template("beginbox", NULL);
793 wprintf("<ul class=\"%s\">", Class);
795 va_start(arg_list, nLines);
796 for (i = 0; i < nLines; ++i)
798 wprintf("<li><a href=\"%s\">", va_arg(arg_list, char *));
799 wprintf((char *) va_arg(arg_list, char *));
800 wprintf("</a></li>\n");
804 wprintf("</a></li>\n");
808 do_template("endbox", NULL);
813 * dump out static pages from disk
815 void output_static(char *what)
821 const char *content_type;
825 fd = open(what, O_RDONLY);
827 lprintf(9, "output_static('%s') -- NOT FOUND --\n", what);
828 hprintf("HTTP/1.1 404 %s\r\n", strerror(errno));
829 hprintf("Content-Type: text/plain\r\n");
830 wprintf("Cannot open %s: %s\r\n", what, strerror(errno));
834 content_type = GuessMimeByFilename(what, len);
836 if (fstat(fd, &statbuf) == -1) {
837 lprintf(9, "output_static('%s') -- FSTAT FAILED --\n", what);
838 hprintf("HTTP/1.1 404 %s\r\n", strerror(errno));
839 hprintf("Content-Type: text/plain\r\n");
840 wprintf("Cannot fstat %s: %s\n", what, strerror(errno));
846 bytes = statbuf.st_size;
848 if (StrBufReadBLOB(WC->WBuf, &fd, 1, bytes, &Err) < 0)
850 if (fd > 0) close(fd);
851 lprintf(9, "output_static('%s') -- FREAD FAILED (%s) --\n", what, strerror(errno));
852 hprintf("HTTP/1.1 500 internal server error \r\n");
853 hprintf("Content-Type: text/plain\r\n");
860 lprintf(9, "output_static('%s') %s\n", what, content_type);
861 http_transmit_thing(content_type, 1);
863 if (yesbstr("force_close_session")) {
864 end_webcit_session();
869 * When the browser requests an image file from the Citadel server,
870 * this function is called to transmit it.
874 struct wcsession *WCC = WC;
877 const char *MimeType;
879 serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
880 serv_getln(buf, sizeof buf);
882 bytes = extract_long(&buf[4], 0);
884 /** Read it from the server */
886 if (read_server_binary(WCC->WBuf, bytes) > 0) {
888 serv_getln(buf, sizeof buf);
890 MimeType = GuessMimeType (ChrPtr(WCC->WBuf), StrLength(WCC->WBuf));
891 /** Write it to the browser */
892 if (!IsEmptyStr(MimeType))
894 http_transmit_thing(MimeType, 0);
898 /* hm... unknown mimetype? fallback to blank gif */
903 * Instead of an ugly 404, send a 1x1 transparent GIF
904 * when there's no such image on the server.
907 snprintf (blank_gif, SIZ, "%s%s", static_dirs[0], "/blank.gif");
908 output_static(blank_gif);
912 * Extract an embedded photo from a vCard for display on the client
914 void display_vcard_photo_img(void)
920 const char *contentType;
921 struct wcsession *WCC = WC;
923 msgnum = StrTol(WCC->UrlFragment1);
925 vcard = load_mimepart(msgnum,"1");
926 v = vcard_load(vcard);
928 photosrc = vcard_get_prop(v, "PHOTO", 1,0,0);
929 FlushStrBuf(WCC->WBuf);
930 StrBufAppendBufPlain(WCC->WBuf, photosrc, -1, 0);
931 if (StrBufDecodeBase64(WCC->WBuf) <= 0) {
932 FlushStrBuf(WCC->WBuf);
934 hprintf("HTTP/1.1 500 %s\n","Unable to get photo");
935 output_headers(0, 0, 0, 0, 0, 0);
936 hprintf("Content-Type: text/plain\r\n");
937 wprintf(_("Could Not decode vcard photo\n"));
941 contentType = GuessMimeType(ChrPtr(WCC->WBuf), StrLength(WCC->WBuf));
942 http_transmit_thing(contentType, 0);
948 * Generic function to output an arbitrary MIME part from an arbitrary
949 * message number on the server.
951 * msgnum Number of the item on the citadel server
952 * partnum The MIME part to be output
953 * force_download Nonzero to force set the Content-Type: header to "application/octet-stream"
955 void mimepart(const char *msgnum, const char *partnum, int force_download)
959 char content_type[256];
961 serv_printf("OPNA %s|%s", msgnum, partnum);
962 serv_getln(buf, sizeof buf);
964 bytes = extract_long(&buf[4], 0);
965 if (force_download) {
966 strcpy(content_type, "application/octet-stream");
969 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
971 output_headers(0, 0, 0, 0, 0, 0);
973 read_server_binary(WC->WBuf, bytes);
975 serv_getln(buf, sizeof buf);
976 http_transmit_thing(content_type, 0);
978 hprintf("HTTP/1.1 404 %s\n", &buf[4]);
979 output_headers(0, 0, 0, 0, 0, 0);
980 hprintf("Content-Type: text/plain\r\n");
981 wprintf(_("An error occurred while retrieving this part: %s\n"), &buf[4]);
988 * Read any MIME part of a message, from the server, into memory.
990 char *load_mimepart(long msgnum, char *partnum)
994 char content_type[SIZ];
997 serv_printf("DLAT %ld|%s", msgnum, partnum);
998 serv_getln(buf, sizeof buf);
1000 bytes = extract_long(&buf[4], 0);
1001 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
1003 content = malloc(bytes + 2);
1004 serv_read(content, bytes);
1006 content[bytes] = 0; /* null terminate for good measure */
1016 * Convenience functions to display a page containing only a string
1018 * titlebarcolor color of the titlebar of the frame
1019 * titlebarmsg text to display in the title bar
1020 * messagetext body of the box
1022 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
1024 hprintf("HTTP/1.1 200 OK\n");
1025 output_headers(1, 1, 2, 0, 0, 0);
1026 wprintf("<div id=\"banner\">\n");
1027 wprintf("<table width=100%% border=0 bgcolor=\"#%s\"><tr><td>", titlebarcolor);
1028 wprintf("<span class=\"titlebar\">%s</span>\n", titlebarmsg);
1029 wprintf("</td></tr></table>\n");
1030 wprintf("</div>\n<div id=\"content\">\n");
1031 escputs(messagetext);
1033 wprintf("<hr />\n");
1039 * Display a blank page.
1041 void blank_page(void) {
1042 output_headers(1, 1, 0, 0, 0, 0);
1048 * A template has been requested
1050 void url_do_template(void) {
1051 const StrBuf *Tmpl = sbstr("template");
1053 output_headers(1, 0, 0, 0, 1, 0);
1054 DoTemplate(ChrPtr(Tmpl), StrLength(Tmpl), NULL, NULL);
1061 * Offer to make any page the user's "start page."
1063 void offer_start_page(void) {
1064 wprintf("<a href=\"change_start_page?startpage=");
1065 urlescputs(WC->this_page);
1067 wprintf(_("Make this my start page"));
1070 wprintf("<br/><a href=\"rss?room=");
1071 urlescputs(WC->wc_roomname);
1072 wprintf("\" title=\"RSS 2.0 feed for ");
1073 escputs(WC->wc_roomname);
1074 wprintf("\"><img alt=\"RSS\" border=\"0\" src=\"static/xml_button.gif\"/></a>\n");
1080 * Change the user's start page
1082 void change_start_page(void) {
1084 if (bstr("startpage") == NULL) {
1085 safestrncpy(WC->ImportantMessage,
1086 _("You no longer have a start page selected."),
1087 sizeof WC->ImportantMessage);
1088 display_main_menu();
1092 set_preference("startpage", NewStrBufPlain(bstr("startpage"), -1), 1);
1094 output_headers(1, 1, 0, 0, 0, 0);
1095 do_template("newstartpage", NULL);
1102 * convenience function to indicate success
1104 void display_success(char *successmessage)
1106 convenience_page("007700", "OK", successmessage);
1111 * Authorization required page
1112 * This is probably temporary and should be revisited
1114 void authorization_required(const char *message)
1116 hprintf("HTTP/1.1 401 Authorization Required\r\n");
1117 hprintf("WWW-Authenticate: Basic realm=\"%s\"\r\n", serv_info.serv_humannode);
1118 hprintf("Content-Type: text/html\r\n");
1120 wprintf(_("Authorization Required"));
1121 wprintf("</h1>\r\n");
1122 wprintf(_("The resource you requested requires a valid username and password. "
1123 "You could not be logged in: %s\n"), message);
1129 * This function is called by the MIME parser to handle data uploaded by
1130 * the browser. Form data, uploaded files, and the data from HTTP PUT
1131 * operations (such as those found in GroupDAV) all arrive this way.
1133 * name Name of the item being uploaded
1134 * filename Filename of the item being uploaded
1135 * partnum MIME part identifier (not needed)
1136 * disp MIME content disposition (not needed)
1137 * content The actual data
1138 * cbtype MIME content-type
1139 * cbcharset Character set
1140 * length Content length
1141 * encoding MIME encoding type (not needed)
1142 * userdata Not used here
1144 void upload_handler(char *name, char *filename, char *partnum, char *disp,
1145 void *content, char *cbtype, char *cbcharset,
1146 size_t length, char *encoding, void *userdata)
1149 #ifdef DEBUG_URLSTRINGS
1150 lprintf(9, "upload_handler() name=%s, type=%s, len=%d\n", name, cbtype, length);
1152 if (WC->urlstrings == NULL)
1153 WC->urlstrings = NewHash(1, NULL);
1156 if ( (length > 0) && (IsEmptyStr(cbtype)) ) {
1157 u = (urlcontent *) malloc(sizeof(urlcontent));
1159 safestrncpy(u->url_key, name, sizeof(u->url_key));
1160 u->url_data = NewStrBufPlain(content, length);
1162 Put(WC->urlstrings, u->url_key, strlen(u->url_key), u, free_url);
1163 #ifdef DEBUG_URLSTRINGS
1164 lprintf(9, "Key: <%s> len: [%ld] Data: <%s>\n", u->url_key, u->url_data_size, u->url_data);
1168 /** Uploaded files */
1169 if ( (length > 0) && (!IsEmptyStr(cbtype)) ) {
1170 WC->upload = malloc(length);
1171 if (WC->upload != NULL) {
1172 WC->upload_length = length;
1173 safestrncpy(WC->upload_filename, filename,
1174 sizeof(WC->upload_filename));
1175 safestrncpy(WC->upload_content_type, cbtype,
1176 sizeof(WC->upload_content_type));
1177 memcpy(WC->upload, content, length);
1180 lprintf(3, "malloc() failed: %s\n", strerror(errno));
1187 * Convenience functions to wrap around asynchronous ajax responses
1189 void begin_ajax_response(void) {
1190 struct wcsession *WCC = WC;
1192 FlushStrBuf(WCC->HBuf);
1193 output_headers(0, 0, 0, 0, 0, 0);
1195 hprintf("Content-type: text/html; charset=UTF-8\r\n"
1197 "Connection: close\r\n"
1204 * print ajax response footer
1206 void end_ajax_response(void) {
1207 ///hprintf("\r\n");///// todo: is this right?
1212 * Wraps a Citadel server command in an AJAX transaction.
1214 void ajax_servcmd(void)
1217 char gcontent[1024];
1221 begin_ajax_response();
1223 serv_printf("%s", bstr("g_cmd"));
1224 serv_getln(buf, sizeof buf);
1225 wprintf("%s\n", buf);
1227 if (buf[0] == '8') {
1228 serv_printf("\n\n000");
1230 if ((buf[0] == '1') || (buf[0] == '8')) {
1231 while (serv_getln(gcontent, sizeof gcontent), strcmp(gcontent, "000")) {
1232 wprintf("%s\n", gcontent);
1236 if (buf[0] == '4') {
1237 text_to_server(bstr("g_input"));
1240 if (buf[0] == '6') {
1241 len = atol(&buf[4]);
1243 serv_read(junk, len);
1246 if (buf[0] == '7') {
1247 len = atol(&buf[4]);
1249 memset(junk, 0, len);
1250 serv_write(junk, len);
1254 end_ajax_response();
1257 * This is kind of an ugly hack, but this is the only place it can go.
1258 * If the command was GEXP, then the instant messenger window must be
1259 * running, so reset the "last_pager_check" watchdog timer so
1260 * that page_popup() doesn't try to open it a second time.
1262 if (!strncasecmp(bstr("g_cmd"), "GEXP", 4)) {
1263 WC->last_pager_check = time(NULL);
1269 * Helper function for the asynchronous check to see if we need
1270 * to open the instant messenger window.
1272 void seconds_since_last_gexp(void)
1276 if ( (time(NULL) - WC->last_pager_check) < 30) {
1281 serv_getln(buf, sizeof buf);
1282 if (buf[3] == '*') {
1292 * \brief Detects a 'mobile' user agent
1294 int is_mobile_ua(char *user_agent) {
1295 if (strstr(user_agent,"iPhone OS") != NULL) {
1297 } else if (strstr(user_agent,"Windows CE") != NULL) {
1299 } else if (strstr(user_agent,"SymbianOS") != NULL) {
1301 } else if (strstr(user_agent, "Opera Mobi") != NULL) {
1303 } else if (strstr(user_agent, "Firefox/2.0.0 Opera 9.51 Beta") != NULL) {
1304 // For some reason a new install of Opera 9.51beta decided to spoof.
1312 * Entry point for WebCit transaction
1314 void session_loop(struct httprequest *req)
1322 char request_method[128];
1323 char pathname[1024];
1324 int a, b, nBackDots, nEmpty;
1325 int ContentLength = 0;
1326 char ContentType[512];
1327 char *content = NULL;
1328 char *content_end = NULL;
1329 struct httprequest *hptr;
1330 char browser_host[256];
1331 char user_agent[256];
1337 * We stuff these with the values coming from the client cookies,
1338 * so we can use them to reconnect a timed out session if we have to.
1340 char c_username[SIZ];
1341 char c_password[SIZ];
1342 char c_roomname[SIZ];
1343 char c_httpauth_string[SIZ];
1344 char c_httpauth_user[SIZ];
1345 char c_httpauth_pass[SIZ];
1347 struct wcsession *WCC;
1349 safestrncpy(c_username, "", sizeof c_username);
1350 safestrncpy(c_password, "", sizeof c_password);
1351 safestrncpy(c_roomname, "", sizeof c_roomname);
1352 safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string);
1353 safestrncpy(c_httpauth_user, DEFAULT_HTTPAUTH_USER, sizeof c_httpauth_user);
1354 safestrncpy(c_httpauth_pass, DEFAULT_HTTPAUTH_PASS, sizeof c_httpauth_pass);
1355 strcpy(browser_host, "");
1358 if (WCC->WBuf == NULL)
1359 WC->WBuf = NewStrBufPlain(NULL, 32768);
1360 FlushStrBuf(WCC->WBuf);
1362 if (WCC->HBuf == NULL)
1363 WCC->HBuf = NewStrBuf();
1364 FlushStrBuf(WCC->HBuf);
1366 WCC->upload_length = 0;
1371 if (hptr == NULL) return;
1373 safestrncpy(cmd, hptr->line, sizeof cmd);
1375 extract_token(request_method, cmd, 0, ' ', sizeof request_method);
1376 extract_token(pathname, cmd, 1, ' ', sizeof pathname);
1378 /** Figure out the action */
1380 sizes[0] = sizeof action;
1383 index[a] = arg[a-1];
1384 sizes[a] = sizeof arg[a-1];
1386 //// index[9] = &foo; todo
1389 for ( a = 0; a < 9; ++a)
1391 extract_token(index[a], pathname, a + 1, '/', sizes[a]);
1392 if (strstr(index[a], "?")) *strstr(index[a], "?") = 0;
1393 if (strstr(index[a], "&")) *strstr(index[a], "&") = 0;
1394 if (strstr(index[a], " ")) *strstr(index[a], " ") = 0;
1395 if ((index[a][0] == '.') && (index[a][1] == '.'))
1397 if (index[a][0] == '\0')
1401 while (hptr != NULL) {
1402 safestrncpy(buf, hptr->line, sizeof buf);
1403 /* lprintf(9, "HTTP HEADER: %s\n", buf); */
1406 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
1407 safestrncpy(cookie, &buf[15], sizeof cookie);
1408 cookie_to_stuff(cookie, NULL,
1409 c_username, sizeof c_username,
1410 c_password, sizeof c_password,
1411 c_roomname, sizeof c_roomname);
1413 else if (!strncasecmp(buf, "Authorization: Basic ", 21)) {
1414 CtdlDecodeBase64(c_httpauth_string, &buf[21], strlen(&buf[21]));
1415 extract_token(c_httpauth_user, c_httpauth_string, 0, ':', sizeof c_httpauth_user);
1416 extract_token(c_httpauth_pass, c_httpauth_string, 1, ':', sizeof c_httpauth_pass);
1418 else if (!strncasecmp(buf, "Content-length: ", 16)) {
1419 ContentLength = atoi(&buf[16]);
1421 else if (!strncasecmp(buf, "Content-type: ", 14)) {
1422 safestrncpy(ContentType, &buf[14], sizeof ContentType);
1424 else if (!strncasecmp(buf, "User-agent: ", 12)) {
1425 safestrncpy(user_agent, &buf[12], sizeof user_agent);
1427 if (is_mobile_ua(&buf[12])) {
1432 else if (!strncasecmp(buf, "X-Forwarded-Host: ", 18)) {
1434 safestrncpy(WCC->http_host, &buf[18], sizeof WCC->http_host);
1437 else if (!strncasecmp(buf, "Host: ", 6)) {
1438 if (IsEmptyStr(WCC->http_host)) {
1439 safestrncpy(WCC->http_host, &buf[6], sizeof WCC->http_host);
1442 else if (!strncasecmp(buf, "X-Forwarded-For: ", 17)) {
1443 safestrncpy(browser_host, &buf[17], sizeof browser_host);
1444 while (num_tokens(browser_host, ',') > 1) {
1445 remove_token(browser_host, 0, ',');
1447 striplt(browser_host);
1451 if (ContentLength > 0) {
1454 BuffSize = ContentLength + SIZ;
1455 content = malloc(BuffSize);
1456 memset(content, 0, BuffSize);
1457 snprintf(content, BuffSize, "Content-type: %s\n"
1458 "Content-length: %d\n\n",
1459 ContentType, ContentLength);
1461 hprintf("Content-type: %s\n"
1462 "Content-length: %d\n\n",
1463 ContentType, ContentLength);
1465 body_start = strlen(content);
1467 /** Read the entire input data at once. */
1468 client_read(&WCC->http_sock, &content[body_start], ContentLength);
1470 if (!strncasecmp(ContentType, "application/x-www-form-urlencoded", 33)) {
1473 Content = _NewConstStrBuf(&content[body_start],ContentLength);
1475 FreeStrBuf(&Content);
1476 } else if (!strncasecmp(ContentType, "multipart", 9)) {
1477 content_end = content + ContentLength + body_start;
1478 mime_parser(content, content_end, *upload_handler, NULL, NULL, NULL, 0);
1484 /* make a note of where we are in case the user wants to save it */
1485 safestrncpy(WCC->this_page, cmd, sizeof(WCC->this_page));
1486 remove_token(WCC->this_page, 2, ' ');
1487 remove_token(WCC->this_page, 0, ' ');
1489 /* If there are variables in the URL, we must grab them now */
1491 for (a = 0; a < len; ++a) {
1492 if ((cmd[a] == '?') || (cmd[a] == '&')) {
1494 for (b = a; b < len; ++b) {
1495 if (isspace(cmd[b])){
1500 //cmd[len - a] = '\0';
1501 Params = _NewConstStrBuf(&cmd[a + 1], len - a);
1503 FreeStrBuf(&Params);
1509 /* If it's a "force 404" situation then display the error and bail. */
1510 if (!strcmp(action, "404")) {
1511 hprintf("HTTP/1.1 404 Not found\r\n");
1512 hprintf("Content-Type: text/plain\r\n");
1513 wprintf("Not found\r\n");
1515 goto SKIP_ALL_THIS_CRAP;
1518 /* Static content can be sent without connecting to Citadel. */
1520 for (a=0; a<ndirs; ++a) {
1521 if (!strcasecmp(action, (char*)static_content_dirs[a])) { /* map web to disk location */
1529 snprintf(buf, sizeof buf, "%s/%s/%s/%s/%s/%s/%s/%s",
1530 static_dirs[n_static],
1531 index[1], index[2], index[3], index[4], index[5], index[6], index[7]);
1532 for (a=0; a<8; ++a) {
1533 if (buf[strlen(buf)-1] == '/') {
1534 buf[strlen(buf)-1] = 0;
1537 for (a = 0; a < strlen(buf); ++a) {
1538 if (isspace(buf[a])) {
1546 lprintf(9, "Suspicious request. Ignoring.");
1547 hprintf("HTTP/1.1 404 Security check failed\r\n");
1548 hprintf("Content-Type: text/plain\r\n");
1549 wprintf("You have sent a malformed or invalid request.\r\n");
1552 goto SKIP_ALL_THIS_CRAP; /* Don't try to connect */
1555 /* If the client sent a nonce that is incorrect, kill the request. */
1556 if (strlen(bstr("nonce")) > 0) {
1557 lprintf(9, "Comparing supplied nonce %s to session nonce %ld\n",
1558 bstr("nonce"), WCC->nonce);
1559 if (ibstr("nonce") != WCC->nonce) {
1560 lprintf(9, "Ignoring request with mismatched nonce.\n");
1561 hprintf("HTTP/1.1 404 Security check failed\r\n");
1562 hprintf("Content-Type: text/plain\r\n");
1563 wprintf("Security check failed.\r\n");
1565 goto SKIP_ALL_THIS_CRAP;
1570 * If we're not connected to a Citadel server, try to hook up the
1573 if (!WCC->connected) {
1574 if (!strcasecmp(ctdlhost, "uds")) {
1575 /* unix domain socket */
1576 snprintf(buf, SIZ, "%s/citadel.socket", ctdlport);
1577 WCC->serv_sock = uds_connectsock(buf);
1581 WCC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
1584 if (WCC->serv_sock < 0) {
1586 goto SKIP_ALL_THIS_CRAP;
1590 serv_getln(buf, sizeof buf); /** get the server welcome message */
1593 * From what host is our user connecting? Go with
1594 * the host at the other end of the HTTP socket,
1595 * unless we are following X-Forwarded-For: headers
1596 * and such a header has already turned up something.
1598 if ( (!follow_xff) || (strlen(browser_host) == 0) ) {
1599 locate_host(browser_host, WCC->http_sock);
1602 get_serv_info(browser_host, user_agent);
1603 if (serv_info.serv_rev_level < MINIMUM_CIT_VERSION) {
1604 wprintf(_("You are connected to a Citadel "
1605 "server running Citadel %d.%02d. \n"
1606 "In order to run this version of WebCit "
1607 "you must also have Citadel %d.%02d or"
1609 serv_info.serv_rev_level / 100,
1610 serv_info.serv_rev_level % 100,
1611 MINIMUM_CIT_VERSION / 100,
1612 MINIMUM_CIT_VERSION % 100
1614 end_webcit_session();
1615 goto SKIP_ALL_THIS_CRAP;
1619 ////////todo: restorte language in this case
1621 * Functions which can be performed without logging in
1623 if (!strcasecmp(action, "listsub")) {
1625 goto SKIP_ALL_THIS_CRAP;
1627 if (!strcasecmp(action, "freebusy")) {
1629 goto SKIP_ALL_THIS_CRAP;
1633 * If we're not logged in, but we have HTTP Authentication data,
1634 * try logging in to Citadel using that.
1636 if ((!WCC->logged_in)
1637 && (strlen(c_httpauth_user) > 0)
1638 && (strlen(c_httpauth_pass) > 0)) {
1639 serv_printf("USER %s", c_httpauth_user);
1640 serv_getln(buf, sizeof buf);
1641 if (buf[0] == '3') {
1642 serv_printf("PASS %s", c_httpauth_pass);
1643 serv_getln(buf, sizeof buf);
1644 if (buf[0] == '2') {
1645 become_logged_in(c_httpauth_user,
1646 c_httpauth_pass, buf);
1647 safestrncpy(WCC->httpauth_user, c_httpauth_user, sizeof WCC->httpauth_user);
1648 safestrncpy(WCC->httpauth_pass, c_httpauth_pass, sizeof WCC->httpauth_pass);
1650 /* Should only display when password is wrong */
1651 authorization_required(&buf[4]);
1652 goto SKIP_ALL_THIS_CRAP;
1657 /* This needs to run early */
1659 if (!strcasecmp(action, "rss")) {
1660 display_rss(bstr("room"), request_method);
1661 goto SKIP_ALL_THIS_CRAP;
1666 * The GroupDAV stuff relies on HTTP authentication instead of
1667 * our session's authentication.
1669 if (!strncasecmp(action, "groupdav", 8)) {
1670 groupdav_main(req, ContentType, /* do GroupDAV methods */
1671 ContentLength, content+body_start);
1672 if (!WCC->logged_in) {
1673 WCC->killthis = 1; /* If not logged in, don't */
1674 } /* keep the session active */
1675 goto SKIP_ALL_THIS_CRAP;
1680 * Automatically send requests with any method other than GET or
1681 * POST to the GroupDAV code as well.
1683 if ((strcasecmp(request_method, "GET")) && (strcasecmp(request_method, "POST"))) {
1684 groupdav_main(req, ContentType, /** do GroupDAV methods */
1685 ContentLength, content+body_start);
1686 if (!WCC->logged_in) {
1687 WCC->killthis = 1; /** If not logged in, don't */
1688 } /** keep the session active */
1689 goto SKIP_ALL_THIS_CRAP;
1693 * If we're not logged in, but we have username and password cookies
1694 * supplied by the browser, try using them to log in.
1696 if ((!WCC->logged_in)
1697 && (!IsEmptyStr(c_username))
1698 && (!IsEmptyStr(c_password))) {
1699 serv_printf("USER %s", c_username);
1700 serv_getln(buf, sizeof buf);
1701 if (buf[0] == '3') {
1702 serv_printf("PASS %s", c_password);
1703 serv_getln(buf, sizeof buf);
1704 if (buf[0] == '2') {
1706 become_logged_in(c_username, c_password, buf);
1707 if (get_preference("language", &Lang)) {
1708 set_selected_language(ChrPtr(Lang));
1709 go_selected_language(); /* set locale */
1715 * If we don't have a current room, but a cookie specifying the
1716 * current room is supplied, make an effort to go there.
1718 if ((IsEmptyStr(WCC->wc_roomname)) && (!IsEmptyStr(c_roomname))) {
1719 serv_printf("GOTO %s", c_roomname);
1720 serv_getln(buf, sizeof buf);
1721 if (buf[0] == '2') {
1722 safestrncpy(WCC->wc_roomname, c_roomname, sizeof WCC->wc_roomname);
1726 if (!strcasecmp(action, "image")) {
1728 } else if (!strcasecmp(action, "display_mime_icon")) {
1729 display_mime_icon();
1733 WebcitHandler *Handler;
1735 GetHash(HandlerHash, action, strlen(action) /* TODO*/, &vHandler),
1736 Handler = (WebcitHandler*) vHandler;
1737 if (Handler != NULL) {
1738 if (!WCC->logged_in && ((Handler->Flags & ANONYMOUS) == 0)) {
1739 display_login(NULL);
1742 if((Handler->Flags & NEED_URL)) {
1743 if (WCC->UrlFragment1 == NULL)
1744 WCC->UrlFragment1 = NewStrBuf();
1745 if (WCC->UrlFragment2 == NULL)
1746 WCC->UrlFragment2 = NewStrBuf();
1747 StrBufPrintf(WCC->UrlFragment1, "%s", index[1]);
1748 StrBufPrintf(WCC->UrlFragment2, "%s", index[2]);
1750 if ((Handler->Flags & AJAX) != 0)
1751 begin_ajax_response();
1753 if ((Handler->Flags & AJAX) != 0)
1754 end_ajax_response();
1757 /* When all else fais, display the main menu. */
1759 if (!WCC->logged_in)
1760 display_login(NULL);
1762 display_main_menu();
1767 if (content != NULL) {
1772 if (WCC->upload_length > 0) {
1774 WCC->upload_length = 0;
1780 * Replacement for sleep() that uses select() in order to avoid SIGALRM
1782 void sleeeeeeeeeep(int seconds)
1786 tv.tv_sec = seconds;
1788 select(0, NULL, NULL, NULL, &tv);
1791 void diagnostics(void)
1793 output_headers(1, 1, 1, 0, 0, 0);
1794 wprintf("Session: %d<hr />\n", WC->wc_session);
1795 wprintf("Command: <br /><PRE>\n");
1796 StrEscPuts(WC->UrlFragment1);
1797 wprintf("<br />\n");
1798 StrEscPuts(WC->UrlFragment2);
1799 wprintf("</PRE><hr />\n");
1800 wprintf("Variables: <br /><PRE>\n");
1802 wprintf("</PRE><hr />\n");
1806 void view_mimepart(void) {
1807 mimepart(ChrPtr(WC->UrlFragment1),
1808 ChrPtr(WC->UrlFragment2),
1812 void download_mimepart(void) {
1813 mimepart(ChrPtr(WC->UrlFragment1),
1814 ChrPtr(WC->UrlFragment2),
1819 int ConditionalImportantMesage(WCTemplateToken *Tokens, void *Context)
1821 struct wcsession *WCC = WC;
1823 return (!IsEmptyStr(WCC->ImportantMessage));
1828 void tmplput_importantmessage(StrBuf *Target, int nArgs, WCTemplateToken *Tokens, void *Context)
1830 struct wcsession *WCC = WC;
1833 StrEscAppend(Target, NULL, WCC->ImportantMessage, 0, 0);
1834 WCC->ImportantMessage[0] = '\0';
1838 void tmplput_offer_start_page(StrBuf *Target, int nArgs, WCTemplateToken *Tokens, void *Context)
1847 WebcitAddUrlHandler(HKEY("blank"), blank_page, ANONYMOUS);
1848 WebcitAddUrlHandler(HKEY("do_template"), url_do_template, ANONYMOUS);
1849 WebcitAddUrlHandler(HKEY("sslg"), seconds_since_last_gexp, AJAX);
1850 WebcitAddUrlHandler(HKEY("ajax_servcmd"), ajax_servcmd, 0);
1851 WebcitAddUrlHandler(HKEY("change_start_page"), change_start_page, 0);
1852 WebcitAddUrlHandler(HKEY("toggle_self_service"), toggle_self_service, 0);
1853 WebcitAddUrlHandler(HKEY("vcardphoto"), display_vcard_photo_img, NEED_URL);
1854 WebcitAddUrlHandler(HKEY("mimepart"), view_mimepart, NEED_URL);
1855 WebcitAddUrlHandler(HKEY("mimepart_download"), download_mimepart, NEED_URL);
1856 WebcitAddUrlHandler(HKEY("diagnostics"), diagnostics, NEED_URL);
1857 RegisterConditional(HKEY("COND:IMPMSG"), 0, ConditionalImportantMesage);
1858 RegisterNamespace("IMPORTANTMESSAGE", 0, 0, tmplput_importantmessage);
1859 RegisterNamespace("OFFERSTARTPAGE", 0, 0, tmplput_offer_start_page);