4 * WebcitAuth; Handles authentication of users to a Citadel server.
11 * Access level definitions. This is initialized from a function rather than a
12 * static array so that the strings may be localized.
16 void initialize_axdefs(void) {
17 axdefs[0] = _("Deleted"); /* an erased user */
18 axdefs[1] = _("New User"); /* a new user */
19 axdefs[2] = _("Problem User"); /* a trouble maker */
20 axdefs[3] = _("Local User"); /* user with normal privileges */
21 axdefs[4] = _("Network User"); /* a user that may access network resources */
22 axdefs[5] = _("Preferred User");/* a moderator */
23 axdefs[6] = _("Aide"); /* chief */
30 * Display the login screen
31 * mesg = the error message if last attempt failed.
33 void display_login(char *mesg)
37 output_headers(1, 1, 2, 0, 0, 0);
38 wprintf("<div id=\"login_screen\">\n");
40 if (mesg != NULL) if (!IsEmptyStr(mesg)) {
41 stresc(buf, SIZ, mesg, 0, 0);
42 svprintf(HKEY("MESG"), WCS_STRING, "%s", buf);
45 svprintf(HKEY("LOGIN_INSTRUCTIONS"), WCS_STRING,
47 "<li><b>If you already have an account on %s</b>, "
48 "enter your user name and password and click "Login." "
49 "<li><b>If you are a new user</b>, enter the name and password "
51 "and click "New User." "
52 "<li>Please log off properly when finished. "
53 "<li>You must use a browser that supports <i>frames</i> and "
55 "<li>Also keep in mind that if your browser is "
56 "configured to block pop-up windows, you will not be able "
57 "to receive any instant messages.<br />"
59 serv_info.serv_humannode
62 svput("USERNAME_BOX", WCS_STRING, _("User name:"));
63 svput("PASSWORD_BOX", WCS_STRING, _("Password:"));
64 svput("LANGUAGE_BOX", WCS_STRING, _("Language:"));
65 svput("LOGIN_BUTTON", WCS_STRING, _("Login"));
66 svput("NEWUSER_BUTTON", WCS_STRING, _("New User"));
67 svput("EXIT_BUTTON", WCS_STRING, _("Exit"));
68 svput("HELLO", WCS_SERVCMD, "MESG hello");
69 svprintf(HKEY("BOXTITLE"), WCS_STRING, _("%s - powered by <a href=\"http://www.citadel.org\">Citadel</a>"),
70 serv_info.serv_humannode);
71 svcallback("DO_LANGUAGE_BOX", offer_languages);
72 if (serv_info.serv_newuser_disabled) {
73 svput("NEWUSER_BUTTON_PRE", WCS_STRING, "<div style=\"display:none;\">");
74 svput("NEWUSER_BUTTON_POST", WCS_STRING, "</div>");
77 svput("NEWUSER_BUTTON_PRE", WCS_STRING, "");
78 svput("NEWUSER_BUTTON_POST", WCS_STRING, "");
82 svprintf(HKEY("OFFER_OPENID_LOGIN"), WCS_STRING,
84 "<a href=\"display_openid_login\">"
85 "<img src=\"static/openid-small.gif\" border=0 valign=middle>"
92 svput("OFFER_OPENID_LOGIN", WCS_STRING, "");
104 * Display the openid-enabled login screen
105 * mesg = the error message if last attempt failed.
107 void display_openid_login(char *mesg)
111 output_headers(1, 1, 2, 0, 0, 0);
112 wprintf("<div id=\"login_screen\">\n");
114 if (mesg != NULL) if (!IsEmptyStr(mesg)) {
115 stresc(buf, SIZ, mesg, 0, 0);
116 svprintf(HKEY("MESG"), WCS_STRING, "%s", buf);
119 svprintf(HKEY("LOGIN_INSTRUCTIONS"), WCS_STRING,
121 "<li>Enter your OpenID URL and click "Login"."
122 "<li>Please log off properly when finished. "
123 "<li>You must use a browser that supports <i>frames</i> and "
125 "<li>Also keep in mind that if your browser is "
126 "configured to block pop-up windows, you will not be able "
127 "to receive any instant messages.<br />"
131 svput("OPENID_BOX", WCS_STRING, _("OpenID URL:"));
132 svput("LANGUAGE_BOX", WCS_STRING, _("Language:"));
133 svput("LOGIN_BUTTON", WCS_STRING, _("Login"));
134 svput("EXIT_BUTTON", WCS_STRING, _("Exit"));
135 svput("HELLO", WCS_SERVCMD, "MESG hello");
136 svprintf(HKEY("BOXTITLE"), WCS_STRING, _("%s - powered by <a href=\"http://www.citadel.org\">Citadel</a>"),
137 serv_info.serv_humannode);
138 svcallback("DO_LANGUAGE_BOX", offer_languages);
140 svprintf(HKEY("OFFER_CONVENTIONAL_LOGIN"), WCS_STRING,
142 "<a href=\"display_login\">"
146 "Log in using a user name and password"
149 do_template("openid_login");
156 /* Initialize the session
158 * This function needs to get called whenever the session changes from
159 * not-logged-in to logged-in, either by an explicit login by the user or
160 * by a timed-out session automatically re-establishing with a little help
161 * from the browser cookie. Either way, we need to load access controls and
162 * preferences from the server.
166 * serv_response The parameters returned from a Citadel USER or NEWU command
168 void become_logged_in(char *user, char *pass, char *serv_response)
173 extract_token(WC->wc_fullname, &serv_response[4], 0, '|', sizeof WC->wc_fullname);
174 safestrncpy(WC->wc_username, user, sizeof WC->wc_username);
175 safestrncpy(WC->wc_password, pass, sizeof WC->wc_password);
176 WC->axlevel = extract_int(&serv_response[4], 1);
177 if (WC->axlevel >= 6) {
184 serv_getln(buf, sizeof buf);
186 WC->new_mail = extract_int(&buf[4], 0);
187 WC->need_regi = extract_int(&buf[4], 1);
188 WC->need_vali = extract_int(&buf[4], 2);
189 extract_token(WC->cs_inet_email, &buf[4], 3, '|', sizeof WC->cs_inet_email);
192 get_preference("current_iconbar", buf, sizeof buf);
193 WC->current_iconbar = atoi(buf);
195 get_preference("floordiv_expanded", WC->floordiv_expanded, sizeof WC->floordiv_expanded);
200 * Perform authentication using a user name and password
206 if (havebstr("language")) {
207 set_selected_language(bstr("language"));
208 go_selected_language();
211 if (havebstr("exit_action")) {
215 if (havebstr("login_action")) {
216 serv_printf("USER %s", bstr("name"));
217 serv_getln(buf, sizeof buf);
219 serv_printf("PASS %s", bstr("pass"));
220 serv_getln(buf, sizeof buf);
222 become_logged_in(bstr("name"),
225 display_login(&buf[4]);
229 display_login(&buf[4]);
233 if (havebstr("newuser_action")) {
234 if (!havebstr("pass")) {
235 display_login(_("Blank passwords are not allowed."));
238 serv_printf("NEWU %s", bstr("name"));
239 serv_getln(buf, sizeof buf);
241 become_logged_in(bstr("name"), bstr("pass"), buf);
242 serv_printf("SETP %s", bstr("pass"));
243 serv_getln(buf, sizeof buf);
245 display_login(&buf[4]);
256 display_login(_("Your password was not accepted."));
263 * Locate a <link> tag and, given its 'rel=' parameter, return its 'href' parameter
265 void extract_link(char *target_buf, int target_size, char *rel, char *source_buf)
267 char *ptr = source_buf;
269 if (!target_buf) return;
271 if (!source_buf) return;
275 while (ptr = bmstrcasestr(ptr, "<link"), ptr != NULL) {
277 char work_buffer[1024];
278 char *link_tag_start = NULL;
279 char *link_tag_end = NULL;
284 link_tag_start = ptr;
285 link_tag_end = strchr(ptr, '>');
289 if ((link_tag_end) && (link_tag_end > link_tag_start)) {
291 len = link_tag_end - link_tag_start;
292 if (len > sizeof work_buffer) len = sizeof work_buffer;
293 memcpy(work_buffer, link_tag_start, len);
295 char *rel_start = NULL;
296 char *rel_end = NULL;
297 rel_start = bmstrcasestr(work_buffer, "rel=");
299 rel_start = strchr(rel_start, '\"');
302 rel_end = strchr(rel_start, '\"');
303 if ((rel_end) && (rel_end > rel_start)) {
304 safestrncpy(rel_tag, rel_start, rel_end - rel_start + 1);
309 char *href_start = NULL;
310 char *href_end = NULL;
311 href_start = bmstrcasestr(work_buffer, "href=");
313 href_start = strchr(href_start, '\"');
316 href_end = strchr(href_start, '\"');
317 if ((href_end) && (href_end > href_start)) {
318 safestrncpy(href_tag, href_start, href_end - href_start + 1);
323 if (!strcasecmp(rel, rel_tag)) {
324 safestrncpy(target_buf, href_tag, target_size);
338 * Perform authentication using OpenID
339 * assemble the checkid_setup request and then redirect to the user's identity provider
341 void do_openid_login(void)
346 if (havebstr("language")) {
347 set_selected_language(bstr("language"));
348 go_selected_language();
351 if (havebstr("exit_action")) {
355 if (havebstr("login_action")) {
356 i = fetch_http(bstr("openid_url"), buf, sizeof buf - 1);
357 buf[sizeof buf - 1] = 0;
359 char openid_server[1024];
360 char openid_delegate[1024];
362 extract_link(openid_server, sizeof openid_server, "openid.server", buf);
363 extract_link(openid_delegate, sizeof openid_delegate, "openid.delegate", buf);
365 /* Empty delegate is legal; we just use the openid_url instead */
366 if (IsEmptyStr(openid_delegate)) {
367 safestrncpy(openid_delegate, bstr("openid_url"), sizeof openid_delegate);
370 /* Now we know where to redirect to. */
372 char redirect_string[4096];
373 char escaped_identity[1024];
374 char escaped_return_to[1024];
375 char escaped_trust_root[1024];
377 stresc(escaped_identity, sizeof escaped_identity, openid_delegate, 0, 1);
379 snprintf(buf, sizeof buf, "%s://%s/finish_openid_login",
380 (is_https ? "https" : "http"), WC->http_host);
381 stresc(escaped_return_to, sizeof escaped_identity, buf, 0, 1);
383 snprintf(buf, sizeof buf, "%s://%s",
384 (is_https ? "https" : "http"), WC->http_host);
385 stresc(escaped_trust_root, sizeof escaped_identity, buf, 0, 1);
387 snprintf(redirect_string, sizeof redirect_string,
389 "?openid.mode=checkid_setup"
390 "&openid_identity=%s"
391 "&openid.return_to=%s"
392 "&openid.trust_root=%s"
394 openid_server, escaped_identity, escaped_return_to, escaped_trust_root
396 lprintf(CTDL_DEBUG, "OpenID server contacted; redirecting to %s\n", redirect_string);
397 http_redirect(redirect_string);
402 /* If we get to this point then something failed. */
403 display_openid_login(_("Your password was not accepted."));
407 * Complete the authentication using OpenID
408 * This function handles the positive or negative assertion from the user's Identity Provider
410 void finish_openid_login(void)
412 if (havebstr("openid.mode")) {
413 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
415 display_openid_login("FIXME id accepted but the code isn't finished");
428 display_openid_login(_("Your password was not accepted."));
441 * display the user a welcome screen.
443 * if this is the first time login, and the web based setup is enabled,
444 * lead the user through the setup routines
446 void do_welcome(void)
449 #ifdef XXX_NOT_FINISHED_YET_XXX
454 * See if we have to run the first-time setup wizard
459 sprintf(wizard_filename, "setupwiz.%s.%s",
461 len = strlen(wizard_filename);
462 for (i=0; i<len; ++i) {
463 if ( (wizard_filename[i]==' ')
464 || (wizard_filename[i] == '/')
466 wizard_filename[i] = '_';
470 fp = fopen(wizard_filename, "r");
472 fgets(buf, sizeof buf, fp);
473 buf[strlen(buf)-1] = 0;
475 if (atoi(buf) == serv_info.serv_rev_level) {
476 setup_wizard = 1; /**< already run */
482 http_redirect("setup_wizard");
488 * Go to the user's preferred start page
490 get_preference("startpage", buf, sizeof buf);
491 if (IsEmptyStr(buf)) {
492 safestrncpy(buf, "dotskip&room=_BASEROOM_", sizeof buf);
493 set_preference("startpage", buf, 1);
496 strcpy(buf, &buf[1]);
503 * Disconnect from the Citadel server, and end this WebCit session
505 void end_webcit_session(void) {
509 sprintf(buf, "%d", WC->current_iconbar);
510 set_preference("current_iconbar", buf, 0);
511 set_preference("floordiv_expanded", WC->floordiv_expanded, 1);
516 /* close() of citadel socket will be done by do_housekeeping() */
526 safestrncpy(WC->wc_username, "", sizeof WC->wc_username);
527 safestrncpy(WC->wc_password, "", sizeof WC->wc_password);
528 safestrncpy(WC->wc_roomname, "", sizeof WC->wc_roomname);
529 safestrncpy(WC->wc_fullname, "", sizeof WC->wc_fullname);
531 /** Calling output_headers() this way causes the cookies to be un-set */
532 output_headers(1, 1, 0, 1, 0, 0);
534 wprintf("<div id=\"logout_screen\">");
535 wprintf("<div class=\"box\">");
536 wprintf("<div class=\"boxlabel\">");
537 wprintf(_("Log off"));
538 wprintf("</div><div class=\"boxcontent\">");
539 serv_puts("MESG goodbye");
540 serv_getln(buf, sizeof buf);
542 if (WC->serv_sock >= 0) {
546 wprintf("Goodbye\n");
550 wprintf(_("This program was unable to connect or stay "
551 "connected to the Citadel server. Please report "
552 "this problem to your system administrator.")
554 wprintf("<a href=\"http://www.citadel.org/doku.php/"
555 "faq:mastering_your_os:net#netstat\">%s</a>",
559 wprintf("<hr /><div class=\"buttons\"> "
560 "<span class=\"button_link\"><a href=\".\">");
561 wprintf(_("Log in again"));
562 wprintf("</a></span> <span class=\"button_link\">"
563 "<a href=\"javascript:window.close();\">");
564 wprintf(_("Close window"));
565 wprintf("</a></span></div></div></div></div>\n");
567 end_webcit_session();
581 output_headers(1, 1, 2, 0, 0, 0);
582 wprintf("<div id=\"banner\">\n");
584 wprintf(_("Validate new users"));
588 wprintf("<div id=\"content\" class=\"service\">\n");
590 /* If the user just submitted a validation, process it... */
591 safestrncpy(buf, bstr("user"), sizeof buf);
592 if (!IsEmptyStr(buf)) {
593 if (havebstr("axlevel")) {
594 serv_printf("VALI %s|%s", buf, bstr("axlevel"));
595 serv_getln(buf, sizeof buf);
597 wprintf("<b>%s</b><br />\n", &buf[4]);
602 /* Now see if any more users require validation. */
604 serv_getln(buf, sizeof buf);
607 wprintf(_("No users require validation at this time."));
608 wprintf("</b><br />\n");
613 wprintf("<b>%s</b><br />\n", &buf[4]);
618 wprintf("<div class=\"fix_scrollbar_bug\">"
619 "<table class=\"auth_validate\"><tr><td>\n");
622 safestrncpy(user, &buf[4], sizeof user);
623 serv_printf("GREG %s", user);
624 serv_getln(cmd, sizeof cmd);
628 serv_getln(buf, sizeof buf);
631 wprintf("#%s<br /><H1>%s</H1>",
634 wprintf("PW: %s<br />\n", buf);
636 wprintf("%s<br />\n", buf);
638 wprintf("%s<br />\n", buf);
640 wprintf("%s, ", buf);
644 wprintf("%s<br />\n", buf);
646 wprintf("%s<br />\n", buf);
648 wprintf(_("Current access level: %d (%s)\n"),
649 atoi(buf), axdefs[atoi(buf)]);
650 } while (strcmp(buf, "000"));
652 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
656 wprintf(_("Select access level for this user:"));
658 for (a = 0; a <= 6; ++a) {
659 wprintf("<a href=\"validate?nonce=%ld?user=", WC->nonce);
661 wprintf("&axlevel=%d\">%s</A> \n",
666 wprintf("</CENTER>\n");
667 wprintf("</td></tr></table></div>\n");
674 * Display form for registration.
676 * (Set during_login to 1 if this registration is being performed during
677 * new user login and will require chaining to the proper screen.)
679 void display_reg(int during_login)
683 if (goto_config_room() != 0) {
684 if (during_login) do_welcome();
685 else display_main_menu();
689 vcard_msgnum = locate_user_vcard(WC->wc_fullname, -1);
690 if (vcard_msgnum < 0L) {
691 if (during_login) do_welcome();
692 else display_main_menu();
697 do_edit_vcard(vcard_msgnum, "1", "do_welcome", USERCONFIGROOM);
700 do_edit_vcard(vcard_msgnum, "1", "display_main_menu", USERCONFIGROOM);
709 * display form for changing your password
711 void display_changepw(void)
715 output_headers(1, 1, 1, 0, 0, 0);
717 svput("BOXTITLE", WCS_STRING, _("Change your password"));
718 do_template("beginbox");
720 if (!IsEmptyStr(WC->ImportantMessage)) {
721 wprintf("<span class=\"errormsg\">"
722 "%s</span><br />\n", WC->ImportantMessage);
723 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
726 serv_puts("MESG changepw");
727 serv_getln(buf, sizeof buf);
732 wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
733 wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%ld\">\n", WC->nonce);
734 wprintf("<table class=\"altern\" ");
735 wprintf("<tr class=\"even\"><td>");
736 wprintf(_("Enter new password:"));
737 wprintf("</td><td>");
738 wprintf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
739 wprintf("<tr class=\"odd\"><td>");
740 wprintf(_("Enter it again to confirm:"));
741 wprintf("</td><td>");
742 wprintf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
743 wprintf("</table>\n");
745 wprintf("<div class=\"buttons\">\n");
746 wprintf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
748 wprintf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
750 wprintf("</form>\n");
752 do_template("endbox");
758 * if passwords match, propagate it to citserver.
763 char newpass1[32], newpass2[32];
765 if (!havebstr("change_action")) {
766 safestrncpy(WC->ImportantMessage,
767 _("Cancelled. Password was not changed."),
768 sizeof WC->ImportantMessage);
773 safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
774 safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
776 if (strcasecmp(newpass1, newpass2)) {
777 safestrncpy(WC->ImportantMessage,
778 _("They don't match. Password was not changed."),
779 sizeof WC->ImportantMessage);
784 if (IsEmptyStr(newpass1)) {
785 safestrncpy(WC->ImportantMessage,
786 _("Blank passwords are not allowed."),
787 sizeof WC->ImportantMessage);
792 serv_printf("SETP %s", newpass1);
793 serv_getln(buf, sizeof buf);
794 sprintf(WC->ImportantMessage, "%s", &buf[4]);
796 safestrncpy(WC->wc_password, buf, sizeof WC->wc_password);
806 void InitModule_AUTH(void)
808 WebcitAddUrlHandler(HKEY("do_welcome"), do_welcome, 0);