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