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 linecount = 0;
 280         StrBuf *result = NULL;
 281         StrBuf *username = NULL;
 282         StrBuf *password = NULL;
 283         StrBuf *logged_in_response = NULL;
 284         StrBuf *claimed_id = NULL;
 285
 286         if (havebstr("openid.mode")) {
 287                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 288                         Buf = NewStrBuf();
 289                         serv_puts("OIDF");
 290                         StrBuf_ServGetln(Buf);
 291                         if (GetServerStatus(Buf, NULL) == 8) {
 292                                 urlcontent *u;
 293                                 void *U;
 294                                 long HKLen;
 295                                 const char *HKey;
 296                                 HashPos *Cursor;
 297
 298                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 299                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 300                                         u = (urlcontent*) U;
 301                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 302                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 303                                         }
 304                                 }
 305
 306                                 serv_puts("000");
 307
 308                                 linecount = 0;
 309                                 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000"))
 310                                 {
 311                                         if (linecount == 0) result = NewStrBufDup(Buf);
 312                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 313                                                 if (linecount == 1) {
 314                                                         username = NewStrBufDup(Buf);
 315                                                 }
 316                                                 else if (linecount == 2) {
 317                                                         password = NewStrBufDup(Buf);
 318                                                 }
 319                                                 else if (linecount == 3) {
 320                                                         logged_in_response = NewStrBufDup(Buf);
 321                                                 }
 322                                         }
 323                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 324                                                 if (linecount == 1) {
 325                                                         claimed_id = NewStrBufDup(Buf);
 326                                                 }
 327                                                 if (linecount == 2) {
 328                                                         username = NewStrBufDup(Buf);
 329                                                 }
 330                                         }
 331                                         ++linecount;
 332                                 }
 333                         }
 334                         FreeStrBuf(&Buf);
 335                 }
 336         }
 337
 338         /*
 339          * Is this an attempt to associate a new OpenID with an account that is already logged in?
 340          */
 341         if ( (WCC->logged_in) && (havebstr("attach_existing")) ) {
 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         /* If this operation logged us in, either by connecting with an existing account or by
 352          * auto-creating one using Simple Registration Extension, we're already on our way.
 353          */
 354         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 355                 become_logged_in(username, password, logged_in_response);
 356         }
 357
 358         /* The specified OpenID was verified but the desired user name was either not specified via SRE
 359          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 360          */
 361
 362 /*
 363  * FIXME make this work again!!!!
 364  *
 365         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 366                 putbstr("__claimed_id", claimed_id);
 367                 claimed_id = NULL;
 368                 if (StrLength(username) > 0) {
 369                         putbstr("__username", username);
 370                         username = NULL;
 371                 }
 372                 begin_burst();
 373                 do_template("openid_manual_create", NULL);
 374                 end_burst();
 375         }
 376 */
 377
 378
 379
 380         /* Did we manage to log in?  If so, continue with the normal flow... */
 381         if (WC->logged_in) {
 382                 begin_burst();
 383                 output_headers(1, 0, 0, 0, 1, 0);
 384                 do_template("authpopup_finished", NULL);
 385                 end_burst();
 386         } else {
 387                 begin_burst();
 388                 output_headers(1, 0, 0, 0, 1, 0);
 389                 wc_printf("<html><body>");
 390                 wc_printf(_("An error has occurred."));
 391                 wc_printf("</body></html>");
 392                 end_burst();
 393         }
 394
 395         FreeStrBuf(&result);
 396         FreeStrBuf(&username);
 397         FreeStrBuf(&password);
 398         FreeStrBuf(&claimed_id);
 399         FreeStrBuf(&logged_in_response);
 400 }
 401
 402
 403 /*
 404  * Display a welcome screen to the user.
 405  *
 406  * If this is the first time login, and the web based setup is enabled,
 407  * lead the user through the setup routines
 408  */
 409 void do_welcome(void)
 410 {
 411         StrBuf *Buf;
 412 #ifdef XXX_NOT_FINISHED_YET_XXX
 413         FILE *fp;
 414         int i;
 415
 416         /**
 417          * See if we have to run the first-time setup wizard
 418          */
 419         if (WC->is_aide) {
 420                 if (!setup_wizard) {
 421                         int len;
 422                         sprintf(wizard_filename, "setupwiz.%s.%s",
 423                                 ctdlhost, ctdlport);
 424                         len = strlen(wizard_filename);
 425                         for (i=0; i<len; ++i) {
 426                                 if (    (wizard_filename[i]==' ')
 427                                         || (wizard_filename[i] == '/')
 428                                 ) {
 429                                         wizard_filename[i] = '_';
 430                                 }
 431                         }
 432
 433                         fp = fopen(wizard_filename, "r");
 434                         if (fp != NULL) {
 435                                 fgets(buf, sizeof buf, fp);
 436                                 buf[strlen(buf)-1] = 0;
 437                                 fclose(fp);
 438                                 if (atoi(buf) == serv_info.serv_rev_level) {
 439                                         setup_wizard = 1; /**< already run */
 440                                 }
 441                         }
 442                 }
 443
 444                 if (!setup_wizard) {
 445                         http_redirect("setup_wizard");
 446                 }
 447         }
 448 #endif
 449
 450         /*
 451          * Go to the user's preferred start page
 452          */
 453         if (!get_preference("startpage", &Buf)) {
 454                 Buf = NewStrBuf ();
 455                 StrBufPrintf(Buf, "dotskip?room=_BASEROOM_");
 456                 set_preference("startpage", Buf, 1);
 457         }
 458         if (ChrPtr(Buf)[0] == '/') {
 459                 StrBufCutLeft(Buf, 1);
 460         }
 461         if (StrLength(Buf) == 0) {
 462                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 463         }
 464         syslog(9, "Redirecting to user's start page: %s\n", ChrPtr(Buf));
 465         http_redirect(ChrPtr(Buf));
 466 }
 467
 468
 469 /*
 470  * Disconnect from the Citadel server, and end this WebCit session
 471  */
 472 void end_webcit_session(void) {
 473
 474         serv_puts("QUIT");
 475         WC->killthis = 1;
 476         /* close() of citadel socket will be done by do_housekeeping() */
 477 }
 478
 479 /*
 480  * execute the logout
 481  */
 482 void do_logout(void)
 483 {
 484         wcsession *WCC = WC;
 485         char buf[SIZ];
 486
 487         FlushStrBuf(WCC->wc_username);
 488         FlushStrBuf(WCC->wc_password);
 489         FlushStrBuf(WCC->wc_fullname);
 490
 491         serv_puts("LOUT");
 492         serv_getln(buf, sizeof buf);
 493         WCC->logged_in = 0;
 494
 495         if (WC->serv_info->serv_supports_guest) {
 496                 display_default_landing_page();
 497                 return;
 498         }
 499
 500         FlushStrBuf(WCC->CurRoom.name);
 501
 502         /* Calling output_headers() this way causes the cookies to be un-set */
 503         output_headers(1, 1, 0, 1, 0, 0);
 504
 505         wc_printf("<div id=\"logout_screen\">");
 506         wc_printf("<div class=\"box\">");
 507         wc_printf("<div class=\"boxlabel\">");
 508         wc_printf(_("Log off"));
 509         wc_printf("</div><div class=\"boxcontent\">");
 510         serv_puts("MESG goodbye");
 511         serv_getln(buf, sizeof buf);
 512
 513         if (WCC->serv_sock >= 0) {
 514                 if (buf[0] == '1') {
 515                         fmout("'CENTER'");
 516                 } else {
 517                         wc_printf("Goodbye\n");
 518                 }
 519         }
 520         else {
 521                 wc_printf(_("This program was unable to connect or stay "
 522                         "connected to the Citadel server.  Please report "
 523                         "this problem to your system administrator.")
 524                 );
 525                 wc_printf("<a href=\"http://www.citadel.org/doku.php/"
 526                         "faq:mastering_your_os:net#netstat\">%s</a>",
 527                         _("Read More..."));
 528         }
 529
 530         wc_printf("<hr /><div class=\"buttons\"> "
 531                 "<span class=\"button_link\"><a href=\".\">");
 532         wc_printf(_("Log in again"));
 533         wc_printf("</a></span>");
 534         wc_printf("</div></div></div>\n");
 535         wDumpContent(2);
 536         end_webcit_session();
 537 }
 538
 539
 540 /*
 541  * validate new users
 542  */
 543 void validate(void)
 544 {
 545         char cmd[SIZ];
 546         char user[SIZ];
 547         char buf[SIZ];
 548         int a;
 549
 550         output_headers(1, 1, 2, 0, 0, 0);
 551         wc_printf("<div id=\"banner\">\n");
 552         wc_printf("<h1>");
 553         wc_printf(_("Validate new users"));
 554         wc_printf("</h1>");
 555         wc_printf("</div>\n");
 556
 557         wc_printf("<div id=\"content\" class=\"service\">\n");
 558
 559         /* If the user just submitted a validation, process it... */
 560         safestrncpy(buf, bstr("user"), sizeof buf);
 561         if (!IsEmptyStr(buf)) {
 562                 if (havebstr("axlevel")) {
 563                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 564                         serv_getln(buf, sizeof buf);
 565                         if (buf[0] != '2') {
 566                                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 567                         }
 568                 }
 569         }
 570
 571         /* Now see if any more users require validation. */
 572         serv_puts("GNUR");
 573         serv_getln(buf, sizeof buf);
 574         if (buf[0] == '2') {
 575                 wc_printf("<b>");
 576                 wc_printf(_("No users require validation at this time."));
 577                 wc_printf("</b><br>\n");
 578                 wDumpContent(1);
 579                 return;
 580         }
 581         if (buf[0] != '3') {
 582                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 583                 wDumpContent(1);
 584                 return;
 585         }
 586
 587         wc_printf("<table class=\"auth_validate\"><tr><td>\n");
 588         wc_printf("<div id=\"validate\">");
 589
 590         safestrncpy(user, &buf[4], sizeof user);
 591         serv_printf("GREG %s", user);
 592         serv_getln(cmd, sizeof cmd);
 593         if (cmd[0] == '1') {
 594                 a = 0;
 595                 do {
 596                         serv_getln(buf, sizeof buf);
 597                         ++a;
 598                         if (a == 1)
 599                                 wc_printf("#%s<br><H1>%s</H1>",
 600                                         buf, &cmd[4]);
 601                         if (a == 2) {
 602                                 char *pch;
 603                                 int haveChar = 0;
 604                                 int haveNum = 0;
 605                                 int haveOther = 0;
 606                                 int count = 0;
 607                                 pch = buf;
 608                                 while (!IsEmptyStr(pch))
 609                                 {
 610                                         if (isdigit(*pch))
 611                                                 haveNum = 1;
 612                                         else if (isalpha(*pch))
 613                                                 haveChar = 1;
 614                                         else
 615                                                 haveOther = 1;
 616                                         pch ++;
 617                                 }
 618                                 count = pch - buf;
 619                                 if (count > 7)
 620                                         count = 0;
 621                                 switch (count){
 622                                 case 0:
 623                                         pch = _("very weak");
 624                                         break;
 625                                 case 1:
 626                                         pch = _("weak");
 627                                         break;
 628                                 case 2:
 629                                         pch = _("ok");
 630                                         break;
 631                                 case 3:
 632                                 default:
 633                                         pch = _("strong");
 634                                 }
 635
 636                                 wc_printf("PW: %s<br>\n", pch);
 637                         }
 638                         if (a == 3)
 639                                 wc_printf("%s<br>\n", buf);
 640                         if (a == 4)
 641                                 wc_printf("%s<br>\n", buf);
 642                         if (a == 5)
 643                                 wc_printf("%s, ", buf);
 644                         if (a == 6)
 645                                 wc_printf("%s ", buf);
 646                         if (a == 7)
 647                                 wc_printf("%s<br>\n", buf);
 648                         if (a == 8)
 649                                 wc_printf("%s<br>\n", buf);
 650                         if (a == 9)
 651                                 wc_printf(_("Current access level: %d (%s)\n"),
 652                                         atoi(buf), axdefs[atoi(buf)]);
 653                 } while (strcmp(buf, "000"));
 654         } else {
 655                 wc_printf("<H1>%s</H1>%s<br>\n", user, &cmd[4]);
 656         }
 657
 658         wc_printf("<hr />");
 659         wc_printf(_("Select access level for this user:"));
 660         wc_printf("<br>\n");
 661         for (a = 0; a <= 6; ++a) {
 662                 wc_printf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 663                 urlescputs(user);
 664                 wc_printf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 665                         a, axdefs[a]);
 666         }
 667         wc_printf("<br>\n");
 668
 669         wc_printf("</div>\n");
 670         wc_printf("</td></tr></table>\n");
 671         wDumpContent(1);
 672 }
 673
 674
 675
 676 /*
 677  * Display form for registration.
 678  *
 679  * (Set during_login to 1 if this registration is being performed during
 680  * new user login and will require chaining to the proper screen.)
 681  */
 682 void display_reg(int during_login)
 683 {
 684         folder Room;
 685         StrBuf *Buf;
 686         message_summary *VCMsg = NULL;
 687         wc_mime_attachment *VCAtt = NULL;
 688         long vcard_msgnum;
 689
 690         Buf = NewStrBuf();
 691         memset(&Room, 0, sizeof(folder));
 692         if (goto_config_room(Buf, &Room) != 0) {
 693                 syslog(9, "display_reg() exiting because goto_config_room() failed\n");
 694                 if (during_login) {
 695                         pop_destination();
 696                 }
 697                 else {
 698                         display_main_menu();
 699                 }
 700                 FreeStrBuf(&Buf);
 701                 FlushFolder(&Room);
 702                 return;
 703         }
 704         FlushFolder(&Room);
 705
 706         FreeStrBuf(&Buf);
 707         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 708         if (vcard_msgnum < 0L) {
 709                 syslog(9, "display_reg() exiting because locate_user_vcard_in_this_room() failed\n");
 710                 if (during_login) {
 711                         pop_destination();
 712                 }
 713                 else {
 714                         display_main_menu();
 715                 }
 716                 return;
 717         }
 718
 719         if (during_login) {
 720                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "pop", USERCONFIGROOM);
 721         }
 722         else {
 723                 StrBuf *ReturnTo;
 724                 ReturnTo = NewStrBufPlain(HKEY("display_main_menu?go="));
 725                 StrBufAppendBuf(ReturnTo, WC->CurRoom.name, 0);
 726                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, ChrPtr(ReturnTo), USERCONFIGROOM);
 727                 FreeStrBuf(&ReturnTo);
 728         }
 729
 730 }
 731
 732
 733
 734
 735 /*
 736  * display form for changing your password
 737  */
 738 void display_changepw(void)
 739 {
 740         WCTemplputParams SubTP;
 741         char buf[SIZ];
 742         StrBuf *Buf;
 743         output_headers(1, 1, 1, 0, 0, 0);
 744
 745         Buf = NewStrBufPlain(_("Change your password"), -1);
 746         memset(&SubTP, 0, sizeof(WCTemplputParams));
 747         SubTP.Filter.ContextType = CTX_STRBUF;
 748         SubTP.Context = Buf;
 749         DoTemplate(HKEY("beginbox"), NULL, &SubTP);
 750
 751         FreeStrBuf(&Buf);
 752
 753         if (!IsEmptyStr(WC->ImportantMessage)) {
 754                 wc_printf("<span class=\"errormsg\">"
 755                         "%s</span><br>\n", WC->ImportantMessage);
 756                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 757         }
 758
 759         serv_puts("MESG changepw");
 760         serv_getln(buf, sizeof buf);
 761         if (buf[0] == '1') {
 762                 fmout("CENTER");
 763         }
 764
 765         wc_printf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 766         wc_printf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 767         wc_printf("<table class=\"altern\" ");
 768         wc_printf("<tr class=\"even\"><td>");
 769         wc_printf(_("Enter new password:"));
 770         wc_printf("</td><td>");
 771         wc_printf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 772         wc_printf("<tr class=\"odd\"><td>");
 773         wc_printf(_("Enter it again to confirm:"));
 774         wc_printf("</td><td>");
 775         wc_printf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 776         wc_printf("</table>\n");
 777
 778         wc_printf("<div class=\"buttons\">\n");
 779         wc_printf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 780         wc_printf("&nbsp;");
 781         wc_printf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 782         wc_printf("</div>\n");
 783         wc_printf("</form>\n");
 784
 785         do_template("endbox", NULL);
 786         wDumpContent(1);
 787 }
 788
 789 /*
 790  * change password
 791  * if passwords match, propagate it to citserver.
 792  */
 793 void changepw(void)
 794 {
 795         char buf[SIZ];
 796         char newpass1[32], newpass2[32];
 797
 798         if (!havebstr("change_action")) {
 799                 safestrncpy(WC->ImportantMessage,
 800                         _("Cancelled.  Password was not changed."),
 801                         sizeof WC->ImportantMessage);
 802                 display_main_menu();
 803                 return;
 804         }
 805
 806         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 807         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 808
 809         if (strcasecmp(newpass1, newpass2)) {
 810                 safestrncpy(WC->ImportantMessage,
 811                         _("They don't match.  Password was not changed."),
 812                         sizeof WC->ImportantMessage);
 813                 display_changepw();
 814                 return;
 815         }
 816
 817         if (IsEmptyStr(newpass1)) {
 818                 safestrncpy(WC->ImportantMessage,
 819                         _("Blank passwords are not allowed."),
 820                         sizeof WC->ImportantMessage);
 821                 display_changepw();
 822                 return;
 823         }
 824
 825         serv_printf("SETP %s", newpass1);
 826         serv_getln(buf, sizeof buf);
 827         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 828         if (buf[0] == '2') {
 829                 if (WC->wc_password == NULL)
 830                         WC->wc_password = NewStrBufPlain(buf, -1);
 831                 else {
 832                         FlushStrBuf(WC->wc_password);
 833                         StrBufAppendBufPlain(WC->wc_password,  buf, -1, 0);
 834                 }
 835                 display_main_menu();
 836         }
 837         else {
 838                 display_changepw();
 839         }
 840 }
 841
 842 int ConditionalHaveAccessCreateRoom(StrBuf *Target, WCTemplputParams *TP)
 843 {
 844         StrBuf *Buf;
 845
 846         Buf = NewStrBuf();
 847         serv_puts("CRE8 0");
 848         StrBuf_ServGetln(Buf);
 849
 850         if (GetServerStatus(Buf, NULL) == 2) {
 851                 StrBufCutLeft(Buf, 4);
 852                 AppendImportantMessage(SKEY(Buf));
 853                 FreeStrBuf(&Buf);
 854                 return 0;
 855         }
 856         FreeStrBuf(&Buf);
 857         return 1;
 858 }
 859
 860 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 861 {
 862         wcsession *WCC = WC;
 863         return (WCC != NULL) ? ((WCC->logged_in == 0)||(WC->is_aide == 0)) : 0;
 864 }
 865
 866 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP)
 867 {
 868         wcsession *WCC = WC;
 869         return (WCC != NULL) ? (WCC->logged_in == 0) : 0;
 870
 871 }
 872
 873
 874
 875 void _display_reg(void) {
 876         display_reg(0);
 877 }
 878
 879
 880 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 881 {
 882         if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
 883         {
 884                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 885                         StrBufCutLeft(Line, 6);
 886                         StrBufDecodeBase64(Line);
 887                         hdr->HR.plainauth = Line;
 888                         hdr->HR.got_auth = AUTH_BASIC;
 889                 }
 890                 else
 891                         syslog(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 892         }
 893 }
 894
 895 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 896 {
 897 /*
 898   todo: enable this if we can have other sessions than authenticated ones.
 899         if (hdr->DontNeedAuth)
 900                 return;
 901 */
 902         StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
 903         StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
 904         hdr->HR.SessionKey = hashlittle(SKEY(hdr->HR.plainauth), 89479832);
 905 /*
 906         syslog(1, "CheckAuthBasic: calculated sessionkey %ld\n",
 907                 hdr->HR.SessionKey);
 908 */
 909 }
 910
 911 void GetAuthBasic(ParsedHttpHdrs *hdr)
 912 {
 913         const char *Pos = NULL;
 914         if (hdr->c_username == NULL)
 915                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 916         if (hdr->c_password == NULL)
 917                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 918         StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
 919         StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
 920 }
 921
 922 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
 923 {
 924         const char *pch;
 925 /*
 926   todo: enable this if we can have other sessions than authenticated ones.
 927         if (hdr->DontNeedAuth)
 928                 return;
 929 */
 930         pch = strstr(ChrPtr(Line), "webcit=");
 931         if (pch == NULL) {
 932                 return;
 933         }
 934
 935         hdr->HR.RawCookie = Line;
 936         StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
 937         StrBufDecodeHex(hdr->HR.RawCookie);
 938
 939         cookie_to_stuff(Line, &hdr->HR.desired_session,
 940                         hdr->c_username,
 941                         hdr->c_password,
 942                         hdr->c_roomname,
 943                         hdr->c_language
 944         );
 945         hdr->HR.got_auth = AUTH_COOKIE;
 946 }
 947
 948 void
 949 HttpNewModule_AUTH
 950 (ParsedHttpHdrs *httpreq)
 951 {
 952         httpreq->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 953         httpreq->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 954         httpreq->c_roomname = NewStrBuf();
 955         httpreq->c_language = NewStrBuf();
 956 }
 957 void
 958 HttpDetachModule_AUTH
 959 (ParsedHttpHdrs *httpreq)
 960 {
 961         FLUSHStrBuf(httpreq->c_username);
 962         FLUSHStrBuf(httpreq->c_password);
 963         FLUSHStrBuf(httpreq->c_roomname);
 964         FLUSHStrBuf(httpreq->c_language);
 965 }
 966
 967 void
 968 HttpDestroyModule_AUTH
 969 (ParsedHttpHdrs *httpreq)
 970 {
 971         FreeStrBuf(&httpreq->c_username);
 972         FreeStrBuf(&httpreq->c_password);
 973         FreeStrBuf(&httpreq->c_roomname);
 974         FreeStrBuf(&httpreq->c_language);
 975 }
 976
 977 void
 978 InitModule_AUTH
 979 (void)
 980 {
 981         initialize_axdefs();
 982         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
 983         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
 984
 985         /* no url pattern at all? Show login. */
 986         WebcitAddUrlHandler(HKEY(""), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
 987
 988         /* some of these will be removed soon */
 989         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
 990         WebcitAddUrlHandler(HKEY("openid_login"), "", 0, do_openid_login, ANONYMOUS);
 991         WebcitAddUrlHandler(HKEY("finalize_openid_login"), "", 0, finalize_openid_login, ANONYMOUS);
 992         WebcitAddUrlHandler(HKEY("openid_manual_create"), "", 0, openid_manual_create, ANONYMOUS);
 993         WebcitAddUrlHandler(HKEY("validate"), "", 0, validate, 0);
 994         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, 0);
 995         WebcitAddUrlHandler(HKEY("display_reg"), "", 0, _display_reg, 0);
 996         WebcitAddUrlHandler(HKEY("display_changepw"), "", 0, display_changepw, 0);
 997         WebcitAddUrlHandler(HKEY("changepw"), "", 0, changepw, 0);
 998         WebcitAddUrlHandler(HKEY("termquit"), "", 0, do_logout, 0);
 999         WebcitAddUrlHandler(HKEY("do_logout"), "", 0, do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1000         WebcitAddUrlHandler(HKEY("ajax_login_username_password"), "", 0, ajax_login_username_password, AJAX|ANONYMOUS);
1001         WebcitAddUrlHandler(HKEY("ajax_login_newuser"), "", 0, ajax_login_newuser, AJAX|ANONYMOUS);
1002         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1003         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1004         RegisterConditional(HKEY("COND:MAY_CREATE_ROOM"), 2,  ConditionalHaveAccessCreateRoom, CTX_NONE);
1005         return;
1006 }
1007
1008
1009 void
1010 SessionDestroyModule_AUTH
1011 (wcsession *sess)
1012 {
1013         FreeStrBuf(&sess->wc_username);
1014         FreeStrBuf(&sess->wc_fullname);
1015         FreeStrBuf(&sess->wc_password);
1016         FreeStrBuf(&sess->httpauth_pass);
1017         FreeStrBuf(&sess->cs_inet_email);
1018 }