webcit/auth.c

   1 /*
   2  * These functions handle authentication of users to a Citadel server.
   3  *
   4  * Copyright (c) 1996-2011 by the citadel.org team
   5  *
   6  * This program is open source software.  You can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 3 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  */
  20
  21 #include "webcit.h"
  22 #include "webserver.h"
  23 #include <ctype.h>
  24
  25 extern uint32_t hashlittle( const void *key, size_t length, uint32_t initval);
  26
  27 /*
  28  * Access level definitions.  This is initialized from a function rather than a
  29  * static array so that the strings may be localized.
  30  */
  31 char *axdefs[7];
  32
  33 void initialize_axdefs(void) {
  34
  35         /* an erased user */
  36         axdefs[0] = _("Deleted");
  37
  38         /* a new user */
  39         axdefs[1] = _("New User");
  40
  41         /* a trouble maker */
  42         axdefs[2] = _("Problem User");
  43
  44         /* user with normal privileges */
  45         axdefs[3] = _("Local User");
  46
  47         /* a user that may access network resources */
  48         axdefs[4] = _("Network User");
  49
  50         /* a moderator */
  51         axdefs[5] = _("Preferred User");
  52
  53         /* chief */
  54         axdefs[6] = _("Aide");
  55 }
  56
  57
  58
  59 /*
  60  * Display the login screen
  61  * mesg = the error message if last attempt failed.
  62  */
  63 void display_login(void)
  64 {
  65         begin_burst();
  66         output_headers(1, 0, 0, 0, 1, 0);
  67         do_template("login", NULL);
  68         end_burst();
  69 }
  70
  71
  72
  73
  74
  75 /* Initialize the session
  76  *
  77  * This function needs to get called whenever the session changes from
  78  * not-logged-in to logged-in, either by an explicit login by the user or
  79  * by a timed-out session automatically re-establishing with a little help
  80  * from the browser cookie.  Either way, we need to load access controls and
  81  * preferences from the server.
  82  *
  83  * user                 the username
  84  * pass                 his password
  85  * serv_response        The parameters returned from a Citadel USER or NEWU command
  86  */
  87 void become_logged_in(const StrBuf *user, const StrBuf *pass, StrBuf *serv_response)
  88 {
  89         wcsession *WCC = WC;
  90         StrBuf *Buf;
  91         StrBuf *FloorDiv;
  92
  93         WCC->logged_in = 1;
  94
  95         if (WCC->wc_fullname == NULL)
  96                 WCC->wc_fullname = NewStrBufPlain(NULL, StrLength(serv_response));
  97         StrBufExtract_token(WCC->wc_fullname, serv_response, 0, '|');
  98         StrBufCutLeft(WCC->wc_fullname, 4 );
  99
 100         if (WCC->wc_username == NULL)
 101                 WCC->wc_username = NewStrBufDup(user);
 102         else {
 103                 FlushStrBuf(WCC->wc_username);
 104                 StrBufAppendBuf(WCC->wc_username, user, 0);
 105         }
 106
 107         if (WCC->wc_password == NULL)
 108                 WCC->wc_password = NewStrBufDup(pass);
 109         else {
 110                 FlushStrBuf(WCC->wc_password);
 111                 StrBufAppendBuf(WCC->wc_password, pass, 0);
 112         }
 113
 114         WCC->axlevel = StrBufExtract_int(serv_response, 1, '|');
 115         if (WCC->axlevel >= 6) { /* TODO: make this a define, else it might trick us later */
 116                 WCC->is_aide = 1;
 117         }
 118
 119         load_preferences();
 120
 121         Buf = NewStrBuf();
 122         serv_puts("CHEK");
 123         StrBuf_ServGetln(Buf);
 124         if (GetServerStatus(Buf, NULL) == 2) {
 125                 const char *pch;
 126
 127                 pch = ChrPtr(Buf) + 4;
 128                 /*WCC->new_mail  =*/ StrBufExtractNext_long(Buf, &pch, '|');
 129                 WCC->need_regi = StrBufExtractNext_long(Buf, &pch, '|');
 130                 WCC->need_vali = StrBufExtractNext_long(Buf, &pch, '|');
 131                 if (WCC->cs_inet_email == NULL)
 132                         WCC->cs_inet_email  = NewStrBuf();
 133                 StrBufExtract_NextToken(WCC->cs_inet_email, Buf, &pch, '|');
 134         }
 135         get_preference("floordiv_expanded", &FloorDiv);
 136         WCC->floordiv_expanded = FloorDiv;
 137         FreeStrBuf(&Buf);
 138 }
 139
 140
 141 /*
 142  * modal/ajax version of 'login' (username and password)
 143  */
 144 void ajax_login_username_password(void) {
 145         StrBuf *Buf = NewStrBuf();
 146
 147         serv_printf("USER %s", bstr("name"));
 148         StrBuf_ServGetln(Buf);
 149         if (GetServerStatus(Buf, NULL) == 3) {
 150                 serv_printf("PASS %s", bstr("pass"));
 151                 StrBuf_ServGetln(Buf);
 152                 if (GetServerStatus(Buf, NULL) == 2) {
 153                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 154                 }
 155         }
 156
 157         /* The client is expecting to read back a citadel protocol response */
 158         wc_printf("%s", ChrPtr(Buf));
 159         FreeStrBuf(&Buf);
 160 }
 161
 162
 163
 164 /*
 165  * modal/ajax version of 'new user' (username and password)
 166  */
 167 void ajax_login_newuser(void) {
 168         StrBuf *NBuf = NewStrBuf();
 169         StrBuf *SBuf = NewStrBuf();
 170
 171         serv_printf("NEWU %s", bstr("name"));
 172         StrBuf_ServGetln(NBuf);
 173         if (GetServerStatus(NBuf, NULL) == 2) {
 174                 become_logged_in(sbstr("name"), sbstr("pass"), NBuf);
 175                 serv_printf("SETP %s", bstr("pass"));
 176                 StrBuf_ServGetln(SBuf);
 177         }
 178
 179         /* The client is expecting to read back a citadel protocol response */
 180         wc_printf("%s", ChrPtr(NBuf));
 181         FreeStrBuf(&NBuf);
 182         FreeStrBuf(&SBuf);
 183 }
 184
 185
 186
 187 /*
 188  * Try to create an account manually after an OpenID was verified
 189  */
 190 void openid_manual_create(void)
 191 {
 192         StrBuf *Buf;
 193
 194         if (havebstr("exit_action")) {
 195                 do_logout();
 196                 return;
 197         }
 198
 199         if (havebstr("newuser_action")) {
 200                 Buf = NewStrBuf();
 201                 serv_printf("OIDC %s", bstr("name"));
 202                 StrBuf_ServGetln(Buf);
 203                 if (GetServerStatus(Buf, NULL) == 2) {
 204                         StrBuf *gpass;
 205
 206                         gpass = NewStrBuf();
 207                         serv_puts("SETP GENERATE_RANDOM_PASSWORD");
 208                         StrBuf_ServGetln(gpass);
 209                         StrBufCutLeft(gpass, 4);
 210                         become_logged_in(sbstr("name"), gpass, Buf);
 211                         FreeStrBuf(&gpass);
 212                 }
 213                 FreeStrBuf(&Buf);
 214         }
 215
 216         if (WC->logged_in) {
 217                 if (WC->need_regi) {
 218                         display_reg(1);
 219                 } else if (WC->need_vali) {
 220                         validate();
 221                 } else {
 222                         do_welcome();
 223                 }
 224         } else {
 225                 const StrBuf *Buf;
 226
 227                 putbstr("__claimed_id", NewStrBufDup(sbstr("openid_url")));
 228                 Buf = sbstr("name");
 229                 if (StrLength(Buf) > 0)
 230                         putbstr("__username", NewStrBufDup(Buf));
 231                 begin_burst();
 232                 do_template("openid_manual_create", NULL);
 233                 end_burst();
 234         }
 235
 236 }
 237
 238
 239 /*
 240  * Perform authentication using OpenID
 241  * assemble the checkid_setup request and then redirect to the user's identity provider
 242  */
 243 void do_openid_login(void)
 244 {
 245         char buf[4096];
 246
 247         snprintf(buf, sizeof buf,
 248                 "OIDS %s|%s/finalize_openid_login|%s",
 249                 bstr("openid_url"),
 250                 ChrPtr(site_prefix),
 251                 ChrPtr(site_prefix)
 252         );
 253
 254         serv_puts(buf);
 255         serv_getln(buf, sizeof buf);
 256         if (buf[0] == '2') {
 257                 syslog(LOG_DEBUG, "OpenID server contacted; redirecting to %s\n", &buf[4]);
 258                 http_redirect(&buf[4]);
 259                 return;
 260         }
 261
 262         begin_burst();
 263         output_headers(1, 0, 0, 0, 1, 0);
 264         wc_printf("<html><body>");
 265         escputs(&buf[4]);
 266         wc_printf("</body></html>");
 267         end_burst();
 268 }
 269
 270
 271 /*
 272  * Complete the authentication using OpenID
 273  * This function handles the positive or negative assertion from the user's Identity Provider
 274  */
 275 void finalize_openid_login(void)
 276 {
 277         StrBuf *Buf;
 278         wcsession *WCC = WC;
 279         int already_logged_in = (WCC->logged_in) ;
 280         int linecount = 0;
 281         StrBuf *result = NULL;
 282         StrBuf *username = NULL;
 283         StrBuf *password = NULL;
 284         StrBuf *logged_in_response = NULL;
 285         StrBuf *claimed_id = NULL;
 286
 287         if (havebstr("openid.mode")) {
 288                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 289                         Buf = NewStrBuf();
 290                         serv_puts("OIDF");
 291                         StrBuf_ServGetln(Buf);
 292                         if (GetServerStatus(Buf, NULL) == 8) {
 293                                 urlcontent *u;
 294                                 void *U;
 295                                 long HKLen;
 296                                 const char *HKey;
 297                                 HashPos *Cursor;
 298
 299                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 300                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 301                                         u = (urlcontent*) U;
 302                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 303                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 304                                         }
 305                                 }
 306
 307                                 serv_puts("000");
 308
 309                                 linecount = 0;
 310                                 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000"))
 311                                 {
 312                                         if (linecount == 0) result = NewStrBufDup(Buf);
 313                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 314                                                 if (linecount == 1) {
 315                                                         username = NewStrBufDup(Buf);
 316                                                 }
 317                                                 else if (linecount == 2) {
 318                                                         password = NewStrBufDup(Buf);
 319                                                 }
 320                                                 else if (linecount == 3) {
 321                                                         logged_in_response = NewStrBufDup(Buf);
 322                                                 }
 323                                         }
 324                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 325                                                 if (linecount == 1) {
 326                                                         claimed_id = NewStrBufDup(Buf);
 327                                                 }
 328                                                 if (linecount == 2) {
 329                                                         username = NewStrBufDup(Buf);
 330                                                 }
 331                                         }
 332                                         ++linecount;
 333                                 }
 334                         }
 335                         FreeStrBuf(&Buf);
 336                 }
 337         }
 338
 339         /* If we were already logged in, this was an attempt to associate an OpenID account
 340         FIXME put this back in
 341         if (already_logged_in) {
 342                 display_openids();
 343                 FreeStrBuf(&result);
 344                 FreeStrBuf(&username);
 345                 FreeStrBuf(&password);
 346                 FreeStrBuf(&claimed_id);
 347                 FreeStrBuf(&logged_in_response);
 348                 return;
 349         }
 350         */
 351
 352         /* If this operation logged us in, either by connecting with an existing account or by
 353          * auto-creating one using Simple Registration Extension, we're already on our way.
 354          */
 355         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 356                 become_logged_in(username, password, logged_in_response);
 357         }
 358
 359         /* The specified OpenID was verified but the desired user name was either not specified via SRI
 360          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 361          */
 362
 363 /*
 364  * FIXME make this work again!!!!
 365  *
 366         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 367                 putbstr("__claimed_id", claimed_id);
 368                 claimed_id = NULL;
 369                 if (StrLength(username) > 0) {
 370                         putbstr("__username", username);
 371                         username = NULL;
 372                 }
 373                 begin_burst();
 374                 do_template("openid_manual_create", NULL);
 375                 end_burst();
 376         }
 377 */
 378
 379
 380
 381         /* Did we manage to log in?  If so, continue with the normal flow... */
 382         if (WC->logged_in) {
 383                 begin_burst();
 384                 output_headers(1, 0, 0, 0, 1, 0);
 385                 do_template("authpopup_finished", NULL);
 386                 end_burst();
 387         } else {
 388                 begin_burst();
 389                 output_headers(1, 0, 0, 0, 1, 0);
 390                 wc_printf("<html><body>");
 391                 wc_printf(_("An error has occurred."));         /* FIXME do something prettier here */
 392                 wc_printf("</body></html>");
 393                 end_burst();
 394         }
 395
 396         FreeStrBuf(&result);
 397         FreeStrBuf(&username);
 398         FreeStrBuf(&password);
 399         FreeStrBuf(&claimed_id);
 400         FreeStrBuf(&logged_in_response);
 401 }
 402
 403
 404 /*
 405  * Display a welcome screen to the user.
 406  *
 407  * If this is the first time login, and the web based setup is enabled,
 408  * lead the user through the setup routines
 409  */
 410 void do_welcome(void)
 411 {
 412         StrBuf *Buf;
 413 #ifdef XXX_NOT_FINISHED_YET_XXX
 414         FILE *fp;
 415         int i;
 416
 417         /**
 418          * See if we have to run the first-time setup wizard
 419          */
 420         if (WC->is_aide) {
 421                 if (!setup_wizard) {
 422                         int len;
 423                         sprintf(wizard_filename, "setupwiz.%s.%s",
 424                                 ctdlhost, ctdlport);
 425                         len = strlen(wizard_filename);
 426                         for (i=0; i<len; ++i) {
 427                                 if (    (wizard_filename[i]==' ')
 428                                         || (wizard_filename[i] == '/')
 429                                 ) {
 430                                         wizard_filename[i] = '_';
 431                                 }
 432                         }
 433
 434                         fp = fopen(wizard_filename, "r");
 435                         if (fp != NULL) {
 436                                 fgets(buf, sizeof buf, fp);
 437                                 buf[strlen(buf)-1] = 0;
 438                                 fclose(fp);
 439                                 if (atoi(buf) == serv_info.serv_rev_level) {
 440                                         setup_wizard = 1; /**< already run */
 441                                 }
 442                         }
 443                 }
 444
 445                 if (!setup_wizard) {
 446                         http_redirect("setup_wizard");
 447                 }
 448         }
 449 #endif
 450
 451         /*
 452          * Go to the user's preferred start page
 453          */
 454         if (!get_preference("startpage", &Buf)) {
 455                 Buf = NewStrBuf ();
 456                 StrBufPrintf(Buf, "dotskip?room=_BASEROOM_");
 457                 set_preference("startpage", Buf, 1);
 458         }
 459         if (ChrPtr(Buf)[0] == '/') {
 460                 StrBufCutLeft(Buf, 1);
 461         }
 462         if (StrLength(Buf) == 0) {
 463                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 464         }
 465         syslog(9, "Redirecting to user's start page: %s\n", ChrPtr(Buf));
 466         http_redirect(ChrPtr(Buf));
 467 }
 468
 469
 470 /*
 471  * Disconnect from the Citadel server, and end this WebCit session
 472  */
 473 void end_webcit_session(void) {
 474
 475         serv_puts("QUIT");
 476         WC->killthis = 1;
 477         /* close() of citadel socket will be done by do_housekeeping() */
 478 }
 479
 480 /*
 481  * execute the logout
 482  */
 483 void do_logout(void)
 484 {
 485         wcsession *WCC = WC;
 486         char buf[SIZ];
 487
 488         FlushStrBuf(WCC->wc_username);
 489         FlushStrBuf(WCC->wc_password);
 490         FlushStrBuf(WCC->wc_fullname);
 491
 492         serv_puts("LOUT");
 493         serv_getln(buf, sizeof buf);
 494         WCC->logged_in = 0;
 495
 496         if (WC->serv_info->serv_supports_guest) {
 497                 display_default_landing_page();
 498                 return;
 499         }
 500
 501         FlushStrBuf(WCC->CurRoom.name);
 502
 503         /* Calling output_headers() this way causes the cookies to be un-set */
 504         output_headers(1, 1, 0, 1, 0, 0);
 505
 506         wc_printf("<div id=\"logout_screen\">");
 507         wc_printf("<div class=\"box\">");
 508         wc_printf("<div class=\"boxlabel\">");
 509         wc_printf(_("Log off"));
 510         wc_printf("</div><div class=\"boxcontent\">");
 511         serv_puts("MESG goodbye");
 512         serv_getln(buf, sizeof buf);
 513
 514         if (WCC->serv_sock >= 0) {
 515                 if (buf[0] == '1') {
 516                         fmout("'CENTER'");
 517                 } else {
 518                         wc_printf("Goodbye\n");
 519                 }
 520         }
 521         else {
 522                 wc_printf(_("This program was unable to connect or stay "
 523                         "connected to the Citadel server.  Please report "
 524                         "this problem to your system administrator.")
 525                 );
 526                 wc_printf("<a href=\"http://www.citadel.org/doku.php/"
 527                         "faq:mastering_your_os:net#netstat\">%s</a>",
 528                         _("Read More..."));
 529         }
 530
 531         wc_printf("<hr /><div class=\"buttons\"> "
 532                 "<span class=\"button_link\"><a href=\".\">");
 533         wc_printf(_("Log in again"));
 534         wc_printf("</a></span>");
 535         wc_printf("</div></div></div>\n");
 536         wDumpContent(2);
 537         end_webcit_session();
 538 }
 539
 540
 541 /*
 542  * validate new users
 543  */
 544 void validate(void)
 545 {
 546         char cmd[SIZ];
 547         char user[SIZ];
 548         char buf[SIZ];
 549         int a;
 550
 551         output_headers(1, 1, 2, 0, 0, 0);
 552         wc_printf("<div id=\"banner\">\n");
 553         wc_printf("<h1>");
 554         wc_printf(_("Validate new users"));
 555         wc_printf("</h1>");
 556         wc_printf("</div>\n");
 557
 558         wc_printf("<div id=\"content\" class=\"service\">\n");
 559
 560         /* If the user just submitted a validation, process it... */
 561         safestrncpy(buf, bstr("user"), sizeof buf);
 562         if (!IsEmptyStr(buf)) {
 563                 if (havebstr("axlevel")) {
 564                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 565                         serv_getln(buf, sizeof buf);
 566                         if (buf[0] != '2') {
 567                                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 568                         }
 569                 }
 570         }
 571
 572         /* Now see if any more users require validation. */
 573         serv_puts("GNUR");
 574         serv_getln(buf, sizeof buf);
 575         if (buf[0] == '2') {
 576                 wc_printf("<b>");
 577                 wc_printf(_("No users require validation at this time."));
 578                 wc_printf("</b><br>\n");
 579                 wDumpContent(1);
 580                 return;
 581         }
 582         if (buf[0] != '3') {
 583                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 584                 wDumpContent(1);
 585                 return;
 586         }
 587
 588         wc_printf("<table class=\"auth_validate\"><tr><td>\n");
 589         wc_printf("<div id=\"validate\">");
 590
 591         safestrncpy(user, &buf[4], sizeof user);
 592         serv_printf("GREG %s", user);
 593         serv_getln(cmd, sizeof cmd);
 594         if (cmd[0] == '1') {
 595                 a = 0;
 596                 do {
 597                         serv_getln(buf, sizeof buf);
 598                         ++a;
 599                         if (a == 1)
 600                                 wc_printf("#%s<br><H1>%s</H1>",
 601                                         buf, &cmd[4]);
 602                         if (a == 2) {
 603                                 char *pch;
 604                                 int haveChar = 0;
 605                                 int haveNum = 0;
 606                                 int haveOther = 0;
 607                                 int count = 0;
 608                                 pch = buf;
 609                                 while (!IsEmptyStr(pch))
 610                                 {
 611                                         if (isdigit(*pch))
 612                                                 haveNum = 1;
 613                                         else if (isalpha(*pch))
 614                                                 haveChar = 1;
 615                                         else
 616                                                 haveOther = 1;
 617                                         pch ++;
 618                                 }
 619                                 count = pch - buf;
 620                                 if (count > 7)
 621                                         count = 0;
 622                                 switch (count){
 623                                 case 0:
 624                                         pch = _("very weak");
 625                                         break;
 626                                 case 1:
 627                                         pch = _("weak");
 628                                         break;
 629                                 case 2:
 630                                         pch = _("ok");
 631                                         break;
 632                                 case 3:
 633                                 default:
 634                                         pch = _("strong");
 635                                 }
 636
 637                                 wc_printf("PW: %s<br>\n", pch);
 638                         }
 639                         if (a == 3)
 640                                 wc_printf("%s<br>\n", buf);
 641                         if (a == 4)
 642                                 wc_printf("%s<br>\n", buf);
 643                         if (a == 5)
 644                                 wc_printf("%s, ", buf);
 645                         if (a == 6)
 646                                 wc_printf("%s ", buf);
 647                         if (a == 7)
 648                                 wc_printf("%s<br>\n", buf);
 649                         if (a == 8)
 650                                 wc_printf("%s<br>\n", buf);
 651                         if (a == 9)
 652                                 wc_printf(_("Current access level: %d (%s)\n"),
 653                                         atoi(buf), axdefs[atoi(buf)]);
 654                 } while (strcmp(buf, "000"));
 655         } else {
 656                 wc_printf("<H1>%s</H1>%s<br>\n", user, &cmd[4]);
 657         }
 658
 659         wc_printf("<hr />");
 660         wc_printf(_("Select access level for this user:"));
 661         wc_printf("<br>\n");
 662         for (a = 0; a <= 6; ++a) {
 663                 wc_printf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 664                 urlescputs(user);
 665                 wc_printf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 666                         a, axdefs[a]);
 667         }
 668         wc_printf("<br>\n");
 669
 670         wc_printf("</div>\n");
 671         wc_printf("</td></tr></table>\n");
 672         wDumpContent(1);
 673 }
 674
 675
 676
 677 /*
 678  * Display form for registration.
 679  *
 680  * (Set during_login to 1 if this registration is being performed during
 681  * new user login and will require chaining to the proper screen.)
 682  */
 683 void display_reg(int during_login)
 684 {
 685         folder Room;
 686         StrBuf *Buf;
 687         message_summary *VCMsg = NULL;
 688         wc_mime_attachment *VCAtt = NULL;
 689         long vcard_msgnum;
 690
 691         Buf = NewStrBuf();
 692         memset(&Room, 0, sizeof(folder));
 693         if (goto_config_room(Buf, &Room) != 0) {
 694                 syslog(9, "display_reg() exiting because goto_config_room() failed\n");
 695                 if (during_login) {
 696                         pop_destination();
 697                 }
 698                 else {
 699                         display_main_menu();
 700                 }
 701                 FreeStrBuf(&Buf);
 702                 FlushFolder(&Room);
 703                 return;
 704         }
 705         FlushFolder(&Room);
 706
 707         FreeStrBuf(&Buf);
 708         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 709         if (vcard_msgnum < 0L) {
 710                 syslog(9, "display_reg() exiting because locate_user_vcard_in_this_room() failed\n");
 711                 if (during_login) {
 712                         pop_destination();
 713                 }
 714                 else {
 715                         display_main_menu();
 716                 }
 717                 return;
 718         }
 719
 720         if (during_login) {
 721                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "pop", USERCONFIGROOM);
 722         }
 723         else {
 724                 StrBuf *ReturnTo;
 725                 ReturnTo = NewStrBufPlain(HKEY("display_main_menu?go="));
 726                 StrBufAppendBuf(ReturnTo, WC->CurRoom.name, 0);
 727                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, ChrPtr(ReturnTo), USERCONFIGROOM);
 728                 FreeStrBuf(&ReturnTo);
 729         }
 730
 731         /* FIXME - don't we have to free VCMsg and VCAtt ?? */
 732 }
 733
 734
 735
 736
 737 /*
 738  * display form for changing your password
 739  */
 740 void display_changepw(void)
 741 {
 742         WCTemplputParams SubTP;
 743         char buf[SIZ];
 744         StrBuf *Buf;
 745         output_headers(1, 1, 1, 0, 0, 0);
 746
 747         Buf = NewStrBufPlain(_("Change your password"), -1);
 748         memset(&SubTP, 0, sizeof(WCTemplputParams));
 749         SubTP.Filter.ContextType = CTX_STRBUF;
 750         SubTP.Context = Buf;
 751         DoTemplate(HKEY("beginbox"), NULL, &SubTP);
 752
 753         FreeStrBuf(&Buf);
 754
 755         if (!IsEmptyStr(WC->ImportantMessage)) {
 756                 wc_printf("<span class=\"errormsg\">"
 757                         "%s</span><br>\n", WC->ImportantMessage);
 758                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 759         }
 760
 761         serv_puts("MESG changepw");
 762         serv_getln(buf, sizeof buf);
 763         if (buf[0] == '1') {
 764                 fmout("CENTER");
 765         }
 766
 767         wc_printf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 768         wc_printf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 769         wc_printf("<table class=\"altern\" ");
 770         wc_printf("<tr class=\"even\"><td>");
 771         wc_printf(_("Enter new password:"));
 772         wc_printf("</td><td>");
 773         wc_printf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 774         wc_printf("<tr class=\"odd\"><td>");
 775         wc_printf(_("Enter it again to confirm:"));
 776         wc_printf("</td><td>");
 777         wc_printf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 778         wc_printf("</table>\n");
 779
 780         wc_printf("<div class=\"buttons\">\n");
 781         wc_printf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 782         wc_printf("&nbsp;");
 783         wc_printf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 784         wc_printf("</div>\n");
 785         wc_printf("</form>\n");
 786
 787         do_template("endbox", NULL);
 788         wDumpContent(1);
 789 }
 790
 791 /*
 792  * change password
 793  * if passwords match, propagate it to citserver.
 794  */
 795 void changepw(void)
 796 {
 797         char buf[SIZ];
 798         char newpass1[32], newpass2[32];
 799
 800         if (!havebstr("change_action")) {
 801                 safestrncpy(WC->ImportantMessage,
 802                         _("Cancelled.  Password was not changed."),
 803                         sizeof WC->ImportantMessage);
 804                 display_main_menu();
 805                 return;
 806         }
 807
 808         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 809         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 810
 811         if (strcasecmp(newpass1, newpass2)) {
 812                 safestrncpy(WC->ImportantMessage,
 813                         _("They don't match.  Password was not changed."),
 814                         sizeof WC->ImportantMessage);
 815                 display_changepw();
 816                 return;
 817         }
 818
 819         if (IsEmptyStr(newpass1)) {
 820                 safestrncpy(WC->ImportantMessage,
 821                         _("Blank passwords are not allowed."),
 822                         sizeof WC->ImportantMessage);
 823                 display_changepw();
 824                 return;
 825         }
 826
 827         serv_printf("SETP %s", newpass1);
 828         serv_getln(buf, sizeof buf);
 829         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 830         if (buf[0] == '2') {
 831                 if (WC->wc_password == NULL)
 832                         WC->wc_password = NewStrBufPlain(buf, -1);
 833                 else {
 834                         FlushStrBuf(WC->wc_password);
 835                         StrBufAppendBufPlain(WC->wc_password,  buf, -1, 0);
 836                 }
 837                 display_main_menu();
 838         }
 839         else {
 840                 display_changepw();
 841         }
 842 }
 843
 844 int ConditionalHaveAccessCreateRoom(StrBuf *Target, WCTemplputParams *TP)
 845 {
 846         StrBuf *Buf;
 847
 848         Buf = NewStrBuf();
 849         serv_puts("CRE8 0");
 850         StrBuf_ServGetln(Buf);
 851
 852         if (GetServerStatus(Buf, NULL) == 2) {
 853                 StrBufCutLeft(Buf, 4);
 854                 AppendImportantMessage(SKEY(Buf));
 855                 FreeStrBuf(&Buf);
 856                 return 0;
 857         }
 858         FreeStrBuf(&Buf);
 859         return 1;
 860 }
 861
 862 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 863 {
 864         wcsession *WCC = WC;
 865         return (WCC != NULL) ? ((WCC->logged_in == 0)||(WC->is_aide == 0)) : 0;
 866 }
 867
 868 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP)
 869 {
 870         wcsession *WCC = WC;
 871         return (WCC != NULL) ? (WCC->logged_in == 0) : 0;
 872
 873 }
 874
 875
 876
 877 void _display_reg(void) {
 878         display_reg(0);
 879 }
 880
 881
 882 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 883 {
 884         if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
 885         {
 886                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 887                         StrBufCutLeft(Line, 6);
 888                         StrBufDecodeBase64(Line);
 889                         hdr->HR.plainauth = Line;
 890                         hdr->HR.got_auth = AUTH_BASIC;
 891                 }
 892                 else
 893                         syslog(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 894         }
 895 }
 896
 897 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 898 {
 899 /*
 900   todo: enable this if we can have other sessions than authenticated ones.
 901         if (hdr->DontNeedAuth)
 902                 return;
 903 */
 904         StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
 905         StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
 906         hdr->HR.SessionKey = hashlittle(SKEY(hdr->HR.plainauth), 89479832);
 907 /*
 908         syslog(1, "CheckAuthBasic: calculated sessionkey %ld\n",
 909                 hdr->HR.SessionKey);
 910 */
 911 }
 912
 913 void GetAuthBasic(ParsedHttpHdrs *hdr)
 914 {
 915         const char *Pos = NULL;
 916         if (hdr->c_username == NULL)
 917                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 918         if (hdr->c_password == NULL)
 919                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 920         StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
 921         StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
 922 }
 923
 924 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
 925 {
 926         const char *pch;
 927 /*
 928   todo: enable this if we can have other sessions than authenticated ones.
 929         if (hdr->DontNeedAuth)
 930                 return;
 931 */
 932         pch = strstr(ChrPtr(Line), "webcit=");
 933         if (pch == NULL) {
 934                 return;
 935         }
 936
 937         hdr->HR.RawCookie = Line;
 938         StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
 939         StrBufDecodeHex(hdr->HR.RawCookie);
 940
 941         cookie_to_stuff(Line, &hdr->HR.desired_session,
 942                         hdr->c_username,
 943                         hdr->c_password,
 944                         hdr->c_roomname,
 945                         hdr->c_language
 946         );
 947         hdr->HR.got_auth = AUTH_COOKIE;
 948 }
 949
 950 void
 951 HttpNewModule_AUTH
 952 (ParsedHttpHdrs *httpreq)
 953 {
 954         httpreq->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 955         httpreq->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 956         httpreq->c_roomname = NewStrBuf();
 957         httpreq->c_language = NewStrBuf();
 958 }
 959 void
 960 HttpDetachModule_AUTH
 961 (ParsedHttpHdrs *httpreq)
 962 {
 963         FLUSHStrBuf(httpreq->c_username);
 964         FLUSHStrBuf(httpreq->c_password);
 965         FLUSHStrBuf(httpreq->c_roomname);
 966         FLUSHStrBuf(httpreq->c_language);
 967 }
 968
 969 void
 970 HttpDestroyModule_AUTH
 971 (ParsedHttpHdrs *httpreq)
 972 {
 973         FreeStrBuf(&httpreq->c_username);
 974         FreeStrBuf(&httpreq->c_password);
 975         FreeStrBuf(&httpreq->c_roomname);
 976         FreeStrBuf(&httpreq->c_language);
 977 }
 978
 979 void
 980 InitModule_AUTH
 981 (void)
 982 {
 983         initialize_axdefs();
 984         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
 985         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
 986
 987         /* no url pattern at all? Show login. */
 988         WebcitAddUrlHandler(HKEY(""), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
 989
 990         /* some of these will be removed soon */
 991         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
 992         WebcitAddUrlHandler(HKEY("openid_login"), "", 0, do_openid_login, ANONYMOUS);
 993         WebcitAddUrlHandler(HKEY("finalize_openid_login"), "", 0, finalize_openid_login, ANONYMOUS);
 994         WebcitAddUrlHandler(HKEY("openid_manual_create"), "", 0, openid_manual_create, ANONYMOUS);
 995         WebcitAddUrlHandler(HKEY("validate"), "", 0, validate, 0);
 996         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, 0);
 997         WebcitAddUrlHandler(HKEY("display_reg"), "", 0, _display_reg, 0);
 998         WebcitAddUrlHandler(HKEY("display_changepw"), "", 0, display_changepw, 0);
 999         WebcitAddUrlHandler(HKEY("changepw"), "", 0, changepw, 0);
1000         WebcitAddUrlHandler(HKEY("termquit"), "", 0, do_logout, 0);
1001         WebcitAddUrlHandler(HKEY("do_logout"), "", 0, do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1002         WebcitAddUrlHandler(HKEY("ajax_login_username_password"), "", 0, ajax_login_username_password, AJAX|ANONYMOUS);
1003         WebcitAddUrlHandler(HKEY("ajax_login_newuser"), "", 0, ajax_login_newuser, AJAX|ANONYMOUS);
1004         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1005         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1006         RegisterConditional(HKEY("COND:MAY_CREATE_ROOM"), 2,  ConditionalHaveAccessCreateRoom, CTX_NONE);
1007         return;
1008 }
1009
1010
1011 void
1012 SessionDestroyModule_AUTH
1013 (wcsession *sess)
1014 {
1015         FreeStrBuf(&sess->wc_username);
1016         FreeStrBuf(&sess->wc_fullname);
1017         FreeStrBuf(&sess->wc_password);
1018         FreeStrBuf(&sess->httpauth_pass);
1019         FreeStrBuf(&sess->cs_inet_email);
1020 }