webcit/auth.c

   1 /*
   2  * $Id$
   3  *
   4  * WebcitAuth; Handles authentication of users to a Citadel server.
   5  */
   6
   7 #include "webcit.h"
   8 #include "webserver.h"
   9 #include <ctype.h>
  10
  11 extern uint32_t hashlittle( const void *key, size_t length, uint32_t initval);
  12
  13 void display_reg(int during_login);
  14
  15 /*
  16  * Access level definitions.  This is initialized from a function rather than a
  17  * static array so that the strings may be localized.
  18  */
  19 char *axdefs[7];
  20
  21 void initialize_axdefs(void) {
  22         axdefs[0] = _("Deleted");       /* an erased user */
  23         axdefs[1] = _("New User");      /* a new user */
  24         axdefs[2] = _("Problem User");  /* a trouble maker */
  25         axdefs[3] = _("Local User");    /* user with normal privileges */
  26         axdefs[4] = _("Network User");  /* a user that may access network resources */
  27         axdefs[5] = _("Preferred User");/* a moderator */
  28         axdefs[6] = _("Aide");          /* chief */
  29 }
  30
  31
  32
  33 /*
  34  * Display the login screen
  35  * mesg = the error message if last attempt failed.
  36  */
  37 void display_login(void)
  38 {
  39         begin_burst();
  40         output_headers(1, 0, 0, 0, 1, 0);
  41         do_template("login", NULL);
  42         end_burst();
  43 }
  44
  45
  46
  47
  48 /*
  49  * Display the openid-enabled login screen
  50  * mesg = the error message if last attempt failed.
  51  */
  52 void display_openid_login(char *mesg)
  53 {
  54   begin_burst();
  55   output_headers(1, 0, 0, 0, 1, 0);
  56   do_template("openid_login", NULL);
  57   end_burst();
  58 }
  59
  60
  61 void display_openid_name_request(const StrBuf *claimed_id, const StrBuf *username)
  62 {
  63         StrBuf *Buf = NULL;
  64
  65         output_headers(1, 1, 2, 0, 0, 0);
  66         wc_printf("<div id=\"login_screen\">\n");
  67
  68         Buf = NewStrBufPlain(NULL, StrLength(claimed_id));
  69         StrEscAppend(Buf, claimed_id, NULL, 0, 0);
  70         svprintf(HKEY("VERIFIED"), WCS_STRING, _("Your OpenID <tt>%s</tt> was successfully verified."),
  71                  ChrPtr(Buf));
  72         SVPutBuf("CLAIMED_ID", Buf, 0);
  73
  74
  75         if (StrLength(username) > 0) {
  76                         Buf = NewStrBufPlain(NULL, StrLength(username));
  77                         StrEscAppend(Buf, username, NULL, 0, 0);
  78                         svprintf(HKEY("REASON"), WCS_STRING,
  79                                  _("However, the user name '%s' conflicts with an existing user."),
  80                                  ChrPtr(Buf));
  81                         FreeStrBuf(&Buf);
  82         }
  83         else {
  84                 svput("REASON", WCS_STRING, "");
  85         }
  86
  87         svput("ACTION_REQUESTED", WCS_STRING, _("Please specify the user name you would like to use."));
  88
  89         svput("USERNAME_BOX", WCS_STRING, _("User name:"));
  90         svput("NEWUSER_BUTTON", WCS_STRING, _("New User"));
  91         svput("EXIT_BUTTON", WCS_STRING, _("Exit"));
  92
  93         svprintf(HKEY("BOXTITLE"), WCS_STRING, _("%s - powered by <a href=\"http://www.citadel.org\">Citadel</a>"),
  94                  ChrPtr(WC->serv_info->serv_humannode));
  95
  96         do_template("openid_manual_create", NULL);
  97         wDumpContent(2);
  98 }
  99
 100
 101
 102 /* Initialize the session
 103  *
 104  * This function needs to get called whenever the session changes from
 105  * not-logged-in to logged-in, either by an explicit login by the user or
 106  * by a timed-out session automatically re-establishing with a little help
 107  * from the browser cookie.  Either way, we need to load access controls and
 108  * preferences from the server.
 109  *
 110  * user                 the username
 111  * pass                 his password
 112  * serv_response        The parameters returned from a Citadel USER or NEWU command
 113  */
 114 void become_logged_in(const StrBuf *user, const StrBuf *pass, StrBuf *serv_response)
 115 {
 116         wcsession *WCC = WC;
 117         StrBuf *Buf;
 118         StrBuf *FloorDiv;
 119
 120         WCC->logged_in = 1;
 121
 122         if (WCC->wc_fullname == NULL)
 123                 WCC->wc_fullname = NewStrBufPlain(NULL, StrLength(serv_response));
 124         StrBufExtract_token(WCC->wc_fullname, serv_response, 0, '|');
 125         StrBufCutLeft(WCC->wc_fullname, 4 );
 126
 127         if (WCC->wc_username == NULL)
 128                 WCC->wc_username = NewStrBufDup(user);
 129         else {
 130                 FlushStrBuf(WCC->wc_username);
 131                 StrBufAppendBuf(WCC->wc_username, user, 0);
 132         }
 133
 134         if (WCC->wc_password == NULL)
 135                 WCC->wc_password = NewStrBufDup(pass);
 136         else {
 137                 FlushStrBuf(WCC->wc_password);
 138                 StrBufAppendBuf(WCC->wc_password, pass, 0);
 139         }
 140
 141         WCC->axlevel = StrBufExtract_int(serv_response, 1, '|');
 142         if (WCC->axlevel >= 6) { /* TODO: make this a define, else it might trick us later */
 143                 WCC->is_aide = 1;
 144         }
 145
 146         load_preferences();
 147
 148         Buf = NewStrBuf();
 149         serv_puts("CHEK");
 150         StrBuf_ServGetln(Buf);
 151         if (GetServerStatus(Buf, NULL) == 2) {
 152                 const char *pch;
 153
 154                 pch = ChrPtr(Buf) + 4;
 155                 WCC->new_mail  = StrBufExtractNext_long(Buf, &pch, '|');
 156                 WCC->need_regi = StrBufExtractNext_long(Buf, &pch, '|');
 157                 WCC->need_vali = StrBufExtractNext_long(Buf, &pch, '|');
 158                 if (WCC->cs_inet_email == NULL)
 159                         WCC->cs_inet_email  = NewStrBuf();
 160                 StrBufExtract_NextToken(WCC->cs_inet_email, Buf, &pch, '|');
 161         }
 162         get_preference("floordiv_expanded", &FloorDiv);
 163         WCC->floordiv_expanded = FloorDiv;
 164         FreeStrBuf(&Buf);
 165 }
 166
 167
 168 /*
 169  * Perform authentication using a user name and password
 170  */
 171 void do_login(void)
 172 {
 173         wcsession *WCC = WC;
 174         StrBuf *Buf;
 175
 176         if (havebstr("language")) {
 177                 set_selected_language(bstr("language"));
 178                 go_selected_language();
 179         }
 180
 181         if (havebstr("exit_action")) {
 182                 do_logout();
 183                 return;
 184         }
 185         Buf = NewStrBuf();
 186         if (havebstr("login_action")) {
 187                 serv_printf("USER %s", bstr("name"));
 188                 StrBuf_ServGetln(Buf);
 189                 if (GetServerStatus(Buf, NULL) == 3) {
 190                         serv_printf("PASS %s", bstr("pass"));
 191                         StrBuf_ServGetln(Buf);
 192                         if (GetServerStatus(Buf, NULL) == 2) {
 193                                 become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 194                         } else {
 195                                 snprintf(WCC->ImportantMessage,
 196                                          sizeof (WCC->ImportantMessage),
 197                                          "%s",
 198                                          &(ChrPtr(Buf))[4]);
 199                                 display_login();
 200                                 FreeStrBuf(&Buf);
 201                                 return;
 202                         }
 203                 } else {
 204                         snprintf(WCC->ImportantMessage,
 205                                  sizeof (WCC->ImportantMessage),
 206                                  "%s",
 207                                  &(ChrPtr(Buf))[4]);
 208                         display_login();
 209                         FreeStrBuf(&Buf);
 210                         return;
 211                 }
 212         }
 213         if (havebstr("newuser_action")) {
 214                 if (!havebstr("pass")) {
 215                         snprintf(WCC->ImportantMessage,
 216                                  sizeof (WCC->ImportantMessage),
 217                                  "%s",
 218                                  _("Blank passwords are not allowed."));
 219                         display_login();
 220                         FreeStrBuf(&Buf);
 221                         return;
 222                 }
 223                 serv_printf("NEWU %s", bstr("name"));
 224                 StrBuf_ServGetln(Buf);
 225                 if (GetServerStatus(Buf, NULL) == 2) {
 226                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 227                         serv_printf("SETP %s", bstr("pass"));
 228                         StrBuf_ServGetln(Buf); /* Don't care? */
 229                 } else {
 230                         snprintf(WCC->ImportantMessage,
 231                                  sizeof (WCC->ImportantMessage),
 232                                  "%s",
 233                                  &(ChrPtr(Buf))[4]);
 234                         display_login();
 235                         FreeStrBuf(&Buf);
 236                         return;
 237                 }
 238         }
 239         if (WCC->logged_in) {
 240                 if (WCC->need_regi) {
 241                         display_reg(1);
 242                 } else if (WCC->need_vali) {
 243                         validate();
 244                 } else {
 245                         do_welcome();
 246                 }
 247         } else {
 248                 snprintf(WCC->ImportantMessage,
 249                          sizeof (WCC->ImportantMessage),
 250                          "%s",
 251                          _("Your password was not accepted."));
 252                 display_login();
 253         }
 254         FreeStrBuf(&Buf);
 255 }
 256
 257 /*
 258  * Try to create an account manually after an OpenID was verified
 259  */
 260 void openid_manual_create(void)
 261 {
 262         StrBuf *Buf;
 263
 264         if (havebstr("exit_action")) {
 265                 do_logout();
 266                 return;
 267         }
 268
 269         if (havebstr("newuser_action")) {
 270                 Buf = NewStrBuf();
 271                 serv_printf("OIDC %s", bstr("name"));
 272                 StrBuf_ServGetln(Buf);
 273                 if (GetServerStatus(Buf, NULL) == 2) {
 274                         StrBuf *gpass;
 275
 276                         gpass = NewStrBuf();
 277                         serv_puts("SETP GENERATE_RANDOM_PASSWORD");
 278                         StrBuf_ServGetln(gpass);
 279                         StrBufCutLeft(gpass, 4);
 280                         become_logged_in(sbstr("name"), gpass, Buf);
 281                         FreeStrBuf(&gpass);
 282                 }
 283                 FreeStrBuf(&Buf);
 284         }
 285
 286         if (WC->logged_in) {
 287                 if (WC->need_regi) {
 288                         display_reg(1);
 289                 } else if (WC->need_vali) {
 290                         validate();
 291                 } else {
 292                         do_welcome();
 293                 }
 294         } else {
 295                 display_openid_name_request(sbstr("openid_url"), sbstr("name"));
 296         }
 297
 298 }
 299
 300
 301 /*
 302  * Perform authentication using OpenID
 303  * assemble the checkid_setup request and then redirect to the user's identity provider
 304  */
 305 void do_openid_login(void)
 306 {
 307         wcsession *WCC = WC;
 308         char buf[4096];
 309
 310         if (havebstr("language")) {
 311                 set_selected_language(bstr("language"));
 312                 go_selected_language();
 313         }
 314
 315         if (havebstr("exit_action")) {
 316                 do_logout();
 317                 return;
 318         }
 319         if (havebstr("login_action")) {
 320                 snprintf(buf, sizeof buf,
 321                         "OIDS %s|%s://%s/finalize_openid_login|%s://%s",
 322                         bstr("openid_url"),
 323                          (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->HR.http_host),
 324                          (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->HR.http_host)
 325                 );
 326
 327                 serv_puts(buf);
 328                 serv_getln(buf, sizeof buf);
 329                 if (buf[0] == '2') {
 330                         lprintf(CTDL_DEBUG, "OpenID server contacted; redirecting to %s\n", &buf[4]);
 331                         http_redirect(&buf[4]);
 332                         return;
 333                 }
 334                 else {
 335                         display_openid_login(&buf[4]);
 336                         return;
 337                 }
 338         }
 339
 340         /* If we get to this point then something failed. */
 341         display_openid_login(_("Your password was not accepted."));
 342 }
 343
 344 /*
 345  * Complete the authentication using OpenID
 346  * This function handles the positive or negative assertion from the user's Identity Provider
 347  */
 348 void finalize_openid_login(void)
 349 {
 350         StrBuf *Buf;
 351         wcsession *WCC = WC;
 352         int already_logged_in = (WCC->logged_in) ;
 353         int linecount = 0;
 354         StrBuf *result = NULL;
 355         StrBuf *username = NULL;
 356         StrBuf *password = NULL;
 357         StrBuf *logged_in_response = NULL;
 358         StrBuf *claimed_id = NULL;
 359
 360         if (havebstr("openid.mode")) {
 361                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 362                         Buf = NewStrBuf();
 363                         serv_puts("OIDF");
 364                         StrBuf_ServGetln(Buf);
 365                         if (GetServerStatus(Buf, NULL) == 8) {
 366                                 urlcontent *u;
 367                                 void *U;
 368                                 long HKLen;
 369                                 const char *HKey;
 370                                 HashPos *Cursor;
 371
 372                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 373                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 374                                         u = (urlcontent*) U;
 375                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 376                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 377                                         }
 378                                 }
 379
 380                                 serv_puts("000");
 381
 382                                 linecount = 0;
 383                                 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000"))
 384                                 {
 385                                         if (linecount == 0) result = NewStrBufDup(Buf);
 386                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 387                                                 if (linecount == 1) {
 388                                                         username = NewStrBufDup(Buf);
 389                                                 }
 390                                                 else if (linecount == 2) {
 391                                                         password = NewStrBufDup(Buf);
 392                                                 }
 393                                                 else if (linecount == 3) {
 394                                                         logged_in_response = NewStrBufDup(Buf);
 395                                                 }
 396                                         }
 397                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 398                                                 if (linecount == 1) {
 399                                                         claimed_id = NewStrBufDup(Buf);
 400                                                 }
 401                                                 if (linecount == 2) {
 402                                                         username = NewStrBufDup(Buf);
 403                                                 }
 404                                         }
 405                                         ++linecount;
 406                                 }
 407                         }
 408                         FreeStrBuf(&Buf);
 409                 }
 410         }
 411
 412         /* If we were already logged in, this was an attempt to associate an OpenID account */
 413         if (already_logged_in) {
 414                 display_openids();
 415                 FreeStrBuf(&result);
 416                 FreeStrBuf(&username);
 417                 FreeStrBuf(&password);
 418                 FreeStrBuf(&claimed_id);
 419                 FreeStrBuf(&logged_in_response);
 420                 return;
 421         }
 422
 423         /* If this operation logged us in, either by connecting with an existing account or by
 424          * auto-creating one using Simple Registration Extension, we're already on our way.
 425          */
 426         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 427                 become_logged_in(username, password, logged_in_response);
 428         }
 429
 430         /* The specified OpenID was verified but the desired user name was either not specified via SRI
 431          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 432          */
 433
 434         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 435                 display_openid_name_request(claimed_id, username);
 436         }
 437
 438         /* Did we manage to log in?  If so, continue with the normal flow... */
 439         if (WC->logged_in) {
 440                 if (WC->need_regi) {
 441                         display_reg(1);
 442                 } else {
 443                         do_welcome();
 444                 }
 445         } else {
 446                 display_openid_login(_("Your password was not accepted."));
 447         }
 448
 449         FreeStrBuf(&result);
 450         FreeStrBuf(&username);
 451         FreeStrBuf(&password);
 452         FreeStrBuf(&claimed_id);
 453         FreeStrBuf(&logged_in_response);
 454 }
 455
 456
 457 /*
 458  * Display a welcome screen to the user.
 459  *
 460  * If this is the first time login, and the web based setup is enabled,
 461  * lead the user through the setup routines
 462  */
 463 void do_welcome(void)
 464 {
 465         StrBuf *Buf;
 466 #ifdef XXX_NOT_FINISHED_YET_XXX
 467         FILE *fp;
 468         int i;
 469
 470         /**
 471          * See if we have to run the first-time setup wizard
 472          */
 473         if (WC->is_aide) {
 474                 if (!setup_wizard) {
 475                         int len;
 476                         sprintf(wizard_filename, "setupwiz.%s.%s",
 477                                 ctdlhost, ctdlport);
 478                         len = strlen(wizard_filename);
 479                         for (i=0; i<len; ++i) {
 480                                 if (    (wizard_filename[i]==' ')
 481                                         || (wizard_filename[i] == '/')
 482                                 ) {
 483                                         wizard_filename[i] = '_';
 484                                 }
 485                         }
 486
 487                         fp = fopen(wizard_filename, "r");
 488                         if (fp != NULL) {
 489                                 fgets(buf, sizeof buf, fp);
 490                                 buf[strlen(buf)-1] = 0;
 491                                 fclose(fp);
 492                                 if (atoi(buf) == serv_info.serv_rev_level) {
 493                                         setup_wizard = 1; /**< already run */
 494                                 }
 495                         }
 496                 }
 497
 498                 if (!setup_wizard) {
 499                         http_redirect("setup_wizard");
 500                 }
 501         }
 502 #endif
 503
 504         /*
 505          * Go to the user's preferred start page
 506          */
 507         if (!get_preference("startpage", &Buf)) {
 508                 Buf = NewStrBuf ();
 509                 StrBufPrintf(Buf, "dotskip?room=_BASEROOM_");
 510                 set_preference("startpage", Buf, 1);
 511         }
 512         if (ChrPtr(Buf)[0] == '/') {
 513                 StrBufCutLeft(Buf, 1);
 514         }
 515         if (StrLength(Buf) == 0) {
 516                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 517         }
 518         lprintf(9, "Redirecting to user's start page: %s\n", ChrPtr(Buf));
 519         http_redirect(ChrPtr(Buf));
 520 }
 521
 522
 523 /*
 524  * Disconnect from the Citadel server, and end this WebCit session
 525  */
 526 void end_webcit_session(void) {
 527
 528         serv_puts("QUIT");
 529         WC->killthis = 1;
 530         /* close() of citadel socket will be done by do_housekeeping() */
 531 }
 532
 533 /*
 534  * execute the logout
 535  */
 536 void do_logout(void)
 537 {
 538         wcsession *WCC = WC;
 539         char buf[SIZ];
 540
 541         FlushStrBuf(WCC->wc_username);
 542         FlushStrBuf(WCC->wc_password);
 543         FlushStrBuf(WCC->CurRoom.name);
 544         FlushStrBuf(WCC->wc_fullname);
 545
 546         /* FIXME: this is to suppress the iconbar displaying, because we aren't
 547            actually logged out yet */
 548         WCC->logged_in = 0;
 549
 550         /** Calling output_headers() this way causes the cookies to be un-set */
 551         output_headers(1, 1, 0, 1, 0, 0);
 552
 553         wc_printf("<div id=\"logout_screen\">");
 554         wc_printf("<div class=\"box\">");
 555         wc_printf("<div class=\"boxlabel\">");
 556         wc_printf(_("Log off"));
 557         wc_printf("</div><div class=\"boxcontent\">");
 558         serv_puts("MESG goodbye");
 559         serv_getln(buf, sizeof buf);
 560
 561         if (WCC->serv_sock >= 0) {
 562                 if (buf[0] == '1') {
 563                         fmout("CENTER");
 564                 } else {
 565                         wc_printf("Goodbye\n");
 566                 }
 567         }
 568         else {
 569                 wc_printf(_("This program was unable to connect or stay "
 570                         "connected to the Citadel server.  Please report "
 571                         "this problem to your system administrator.")
 572                 );
 573                 wc_printf("<a href=\"http://www.citadel.org/doku.php/"
 574                         "faq:mastering_your_os:net#netstat\">%s</a>",
 575                         _("Read More..."));
 576         }
 577
 578         wc_printf("<hr /><div class=\"buttons\"> "
 579                 "<span class=\"button_link\"><a href=\".\">");
 580         wc_printf(_("Log in again"));
 581         wc_printf("</a></span>");
 582
 583         /* The "close window" link is commented out because some browsers don't
 584          * allow it to work.
 585          *
 586         wc_printf("&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
 587                 "<a href=\"javascript:window.close();\">");
 588         wc_printf(_("Close window"));
 589         wc_printf("</a></span>");
 590          */
 591
 592         wc_printf("</div></div></div></div>\n");
 593         wDumpContent(2);
 594         end_webcit_session();
 595 }
 596
 597
 598 /*
 599  * validate new users
 600  */
 601 void validate(void)
 602 {
 603         char cmd[SIZ];
 604         char user[SIZ];
 605         char buf[SIZ];
 606         int a;
 607
 608         output_headers(1, 1, 2, 0, 0, 0);
 609         wc_printf("<div id=\"banner\">\n");
 610         wc_printf("<h1>");
 611         wc_printf(_("Validate new users"));
 612         wc_printf("</h1>");
 613         wc_printf("</div>\n");
 614
 615         wc_printf("<div id=\"content\" class=\"service\">\n");
 616
 617         /* If the user just submitted a validation, process it... */
 618         safestrncpy(buf, bstr("user"), sizeof buf);
 619         if (!IsEmptyStr(buf)) {
 620                 if (havebstr("axlevel")) {
 621                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 622                         serv_getln(buf, sizeof buf);
 623                         if (buf[0] != '2') {
 624                                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 625                         }
 626                 }
 627         }
 628
 629         /* Now see if any more users require validation. */
 630         serv_puts("GNUR");
 631         serv_getln(buf, sizeof buf);
 632         if (buf[0] == '2') {
 633                 wc_printf("<b>");
 634                 wc_printf(_("No users require validation at this time."));
 635                 wc_printf("</b><br>\n");
 636                 wDumpContent(1);
 637                 return;
 638         }
 639         if (buf[0] != '3') {
 640                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 641                 wDumpContent(1);
 642                 return;
 643         }
 644
 645         wc_printf("<div class=\"fix_scrollbar_bug\">"
 646                 "<table class=\"auth_validate\"><tr><td>\n");
 647         wc_printf("<div id=\"validate\">");
 648
 649         safestrncpy(user, &buf[4], sizeof user);
 650         serv_printf("GREG %s", user);
 651         serv_getln(cmd, sizeof cmd);
 652         if (cmd[0] == '1') {
 653                 a = 0;
 654                 do {
 655                         serv_getln(buf, sizeof buf);
 656                         ++a;
 657                         if (a == 1)
 658                                 wc_printf("#%s<br><H1>%s</H1>",
 659                                         buf, &cmd[4]);
 660                         if (a == 2) {
 661                                 char *pch;
 662                                 int haveChar = 0;
 663                                 int haveNum = 0;
 664                                 int haveOther = 0;
 665                                 int count = 0;
 666                                 pch = buf;
 667                                 while (!IsEmptyStr(pch))
 668                                 {
 669                                         if (isdigit(*pch))
 670                                                 haveNum = 1;
 671                                         else if (isalpha(*pch))
 672                                                 haveChar = 1;
 673                                         else
 674                                                 haveOther = 1;
 675                                         pch ++;
 676                                 }
 677                                 count = pch - buf;
 678                                 if (count > 7)
 679                                         count = 0;
 680                                 switch (count){
 681                                 case 0:
 682                                         pch = _("very weak");
 683                                         break;
 684                                 case 1:
 685                                         pch = _("weak");
 686                                         break;
 687                                 case 2:
 688                                         pch = _("ok");
 689                                         break;
 690                                 case 3:
 691                                 default:
 692                                         pch = _("strong");
 693                                 }
 694
 695                                 wc_printf("PW: %s<br>\n", pch);
 696                         }
 697                         if (a == 3)
 698                                 wc_printf("%s<br>\n", buf);
 699                         if (a == 4)
 700                                 wc_printf("%s<br>\n", buf);
 701                         if (a == 5)
 702                                 wc_printf("%s, ", buf);
 703                         if (a == 6)
 704                                 wc_printf("%s ", buf);
 705                         if (a == 7)
 706                                 wc_printf("%s<br>\n", buf);
 707                         if (a == 8)
 708                                 wc_printf("%s<br>\n", buf);
 709                         if (a == 9)
 710                                 wc_printf(_("Current access level: %d (%s)\n"),
 711                                         atoi(buf), axdefs[atoi(buf)]);
 712                 } while (strcmp(buf, "000"));
 713         } else {
 714                 wc_printf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 715         }
 716
 717         wc_printf("<hr />");
 718         wc_printf(_("Select access level for this user:"));
 719         wc_printf("<br />\n");
 720         for (a = 0; a <= 6; ++a) {
 721                 wc_printf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 722                 urlescputs(user);
 723                 wc_printf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 724                         a, axdefs[a]);
 725         }
 726         wc_printf("<br />\n");
 727
 728         wc_printf("</div>\n");
 729         wc_printf("</td></tr></table></div>\n");
 730         wDumpContent(1);
 731 }
 732
 733
 734
 735 /*
 736  * Display form for registration.
 737  *
 738  * (Set during_login to 1 if this registration is being performed during
 739  * new user login and will require chaining to the proper screen.)
 740  */
 741 void display_reg(int during_login)
 742 {
 743         folder Room;
 744         StrBuf *Buf;
 745         message_summary *VCMsg = NULL;
 746         wc_mime_attachment *VCAtt = NULL;
 747         long vcard_msgnum;
 748
 749         Buf = NewStrBuf();
 750         if (goto_config_room(Buf, &Room) != 0) {
 751                 lprintf(9, "display_reg() exiting because goto_config_room() failed\n");
 752                 if (during_login) {
 753                         do_welcome();
 754                 }
 755                 else {
 756                         display_main_menu();
 757                 }
 758                 FreeStrBuf(&Buf);
 759                 FlushFolder(&Room);
 760                 return;
 761         }
 762         FlushFolder(&Room);
 763
 764         FreeStrBuf(&Buf);
 765         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 766         if (vcard_msgnum < 0L) {
 767                 lprintf(9, "display_reg() exiting because locate_user_vcard_in_this_room() failed\n");
 768                 if (during_login) {
 769                         do_welcome();
 770                 }
 771                 else {
 772                         display_main_menu();
 773                 }
 774                 return;
 775         }
 776
 777         if (during_login) {
 778                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "do_welcome", USERCONFIGROOM);
 779         }
 780         else {
 781                 StrBuf *ReturnTo;
 782                 ReturnTo = NewStrBufPlain(HKEY("display_main_menu?gotofirst="));
 783                 StrBufAppendBuf(ReturnTo, WC->CurRoom.name, 0);
 784                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, ChrPtr(ReturnTo), USERCONFIGROOM);
 785                 FreeStrBuf(&ReturnTo);
 786         }
 787
 788         /* FIXME - don't we have to free VCMsg and VCAtt ?? */
 789 }
 790
 791
 792
 793
 794 /*
 795  * display form for changing your password
 796  */
 797 void display_changepw(void)
 798 {
 799         WCTemplputParams SubTP;
 800         char buf[SIZ];
 801         StrBuf *Buf;
 802         output_headers(1, 1, 1, 0, 0, 0);
 803
 804         Buf = NewStrBufPlain(_("Change your password"), -1);
 805         memset(&SubTP, 0, sizeof(WCTemplputParams));
 806         SubTP.Filter.ContextType = CTX_STRBUF;
 807         SubTP.Context = Buf;
 808         DoTemplate(HKEY("beginbox"), NULL, &SubTP);
 809
 810         FreeStrBuf(&Buf);
 811
 812         if (!IsEmptyStr(WC->ImportantMessage)) {
 813                 wc_printf("<span class=\"errormsg\">"
 814                         "%s</span><br />\n", WC->ImportantMessage);
 815                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 816         }
 817
 818         serv_puts("MESG changepw");
 819         serv_getln(buf, sizeof buf);
 820         if (buf[0] == '1') {
 821                 fmout("CENTER");
 822         }
 823
 824         wc_printf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 825         wc_printf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 826         wc_printf("<table class=\"altern\" ");
 827         wc_printf("<tr class=\"even\"><td>");
 828         wc_printf(_("Enter new password:"));
 829         wc_printf("</td><td>");
 830         wc_printf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 831         wc_printf("<tr class=\"odd\"><td>");
 832         wc_printf(_("Enter it again to confirm:"));
 833         wc_printf("</td><td>");
 834         wc_printf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 835         wc_printf("</table>\n");
 836
 837         wc_printf("<div class=\"buttons\">\n");
 838         wc_printf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 839         wc_printf("&nbsp;");
 840         wc_printf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 841         wc_printf("</div>\n");
 842         wc_printf("</form>\n");
 843
 844         do_template("endbox", NULL);
 845         wDumpContent(1);
 846 }
 847
 848 /*
 849  * change password
 850  * if passwords match, propagate it to citserver.
 851  */
 852 void changepw(void)
 853 {
 854         char buf[SIZ];
 855         char newpass1[32], newpass2[32];
 856
 857         if (!havebstr("change_action")) {
 858                 safestrncpy(WC->ImportantMessage,
 859                         _("Cancelled.  Password was not changed."),
 860                         sizeof WC->ImportantMessage);
 861                 display_main_menu();
 862                 return;
 863         }
 864
 865         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 866         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 867
 868         if (strcasecmp(newpass1, newpass2)) {
 869                 safestrncpy(WC->ImportantMessage,
 870                         _("They don't match.  Password was not changed."),
 871                         sizeof WC->ImportantMessage);
 872                 display_changepw();
 873                 return;
 874         }
 875
 876         if (IsEmptyStr(newpass1)) {
 877                 safestrncpy(WC->ImportantMessage,
 878                         _("Blank passwords are not allowed."),
 879                         sizeof WC->ImportantMessage);
 880                 display_changepw();
 881                 return;
 882         }
 883
 884         serv_printf("SETP %s", newpass1);
 885         serv_getln(buf, sizeof buf);
 886         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 887         if (buf[0] == '2') {
 888                 if (WC->wc_password == NULL)
 889                         WC->wc_password = NewStrBufPlain(buf, -1);
 890                 else {
 891                         FlushStrBuf(WC->wc_password);
 892                         StrBufAppendBufPlain(WC->wc_password,  buf, -1, 0);
 893                 }
 894                 display_main_menu();
 895         }
 896         else {
 897                 display_changepw();
 898         }
 899 }
 900
 901 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 902 {
 903         wcsession *WCC = WC;
 904         return (WCC != NULL)? (WC->is_aide == 0) : 0;
 905 }
 906
 907 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP)
 908 {
 909         wcsession *WCC = WC;
 910         return (WCC != NULL)? (WCC->logged_in == 0) : 0;
 911 }
 912
 913
 914 void _display_openid_login(void) {
 915         display_openid_login(NULL);
 916 }
 917
 918
 919 void _display_reg(void) {
 920         display_reg(0);
 921 }
 922
 923
 924 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 925 {
 926         if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
 927         {
 928                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 929                         StrBufCutLeft(Line, 6);
 930                         StrBufDecodeBase64(Line);
 931                         hdr->HR.plainauth = Line;
 932                         hdr->HR.got_auth = AUTH_BASIC;
 933                 }
 934                 else
 935                         lprintf(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 936         }
 937 }
 938
 939 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 940 {
 941 /*
 942   todo: enable this if we can have other sessions than authenticated ones.
 943         if (hdr->DontNeedAuth)
 944                 return;
 945 */
 946         StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
 947         StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
 948         hdr->HR.SessionKey = hashlittle(SKEY(hdr->HR.plainauth), 89479832);
 949 /*
 950         lprintf(1, "CheckAuthBasic: calculated sessionkey %ld\n",
 951                 hdr->HR.SessionKey);
 952 */
 953 }
 954
 955 void GetAuthBasic(ParsedHttpHdrs *hdr)
 956 {
 957         const char *Pos = NULL;
 958         if (hdr->c_username == NULL)
 959                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 960         if (hdr->c_password == NULL)
 961                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 962         StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
 963         StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
 964 }
 965
 966 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
 967 {
 968         const char *pch;
 969 /*
 970   todo: enable this if we can have other sessions than authenticated ones.
 971         if (hdr->DontNeedAuth)
 972                 return;
 973 */
 974         pch = strstr(ChrPtr(Line), "webcit=");
 975         if (pch == NULL) {
 976                 return;
 977         }
 978
 979         hdr->HR.RawCookie = Line;
 980         StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
 981         StrBufDecodeHex(hdr->HR.RawCookie);
 982
 983         cookie_to_stuff(Line, &hdr->HR.desired_session,
 984                         hdr->c_username,
 985                         hdr->c_password,
 986                         hdr->c_roomname,
 987                         hdr->c_language
 988         );
 989         hdr->HR.got_auth = AUTH_COOKIE;
 990 }
 991
 992 void
 993 HttpNewModule_AUTH
 994 (ParsedHttpHdrs *httpreq)
 995 {
 996         httpreq->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 997         httpreq->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 998         httpreq->c_roomname = NewStrBuf();
 999         httpreq->c_language = NewStrBuf();
1000 }
1001 void
1002 HttpDetachModule_AUTH
1003 (ParsedHttpHdrs *httpreq)
1004 {
1005         FLUSHStrBuf(httpreq->c_username);
1006         FLUSHStrBuf(httpreq->c_password);
1007         FLUSHStrBuf(httpreq->c_roomname);
1008         FLUSHStrBuf(httpreq->c_language);
1009 }
1010
1011 void
1012 HttpDestroyModule_AUTH
1013 (ParsedHttpHdrs *httpreq)
1014 {
1015         FreeStrBuf(&httpreq->c_username);
1016         FreeStrBuf(&httpreq->c_password);
1017         FreeStrBuf(&httpreq->c_roomname);
1018         FreeStrBuf(&httpreq->c_language);
1019 }
1020
1021 void
1022 InitModule_AUTH
1023 (void)
1024 {
1025         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
1026         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
1027
1028         WebcitAddUrlHandler(HKEY(""), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED); /* no url pattern at all? Show login. */
1029         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
1030         WebcitAddUrlHandler(HKEY("login"), "", 0, do_login, ANONYMOUS|COOKIEUNNEEDED);
1031         WebcitAddUrlHandler(HKEY("display_openid_login"), "", 0, _display_openid_login, ANONYMOUS);
1032         WebcitAddUrlHandler(HKEY("openid_login"), "", 0, do_openid_login, ANONYMOUS);
1033         WebcitAddUrlHandler(HKEY("finalize_openid_login"), "", 0, finalize_openid_login, ANONYMOUS);
1034         WebcitAddUrlHandler(HKEY("openid_manual_create"), "", 0, openid_manual_create, ANONYMOUS);
1035         WebcitAddUrlHandler(HKEY("do_logout"), "", 0, do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1036         WebcitAddUrlHandler(HKEY("validate"), "", 0, validate, 0);
1037         WebcitAddUrlHandler(HKEY("display_reg"), "", 0, _display_reg, 0);
1038         WebcitAddUrlHandler(HKEY("display_changepw"), "", 0, display_changepw, 0);
1039         WebcitAddUrlHandler(HKEY("changepw"), "", 0, changepw, 0);
1040         WebcitAddUrlHandler(HKEY("termquit"), "", 0, do_logout, 0);
1041
1042         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1043         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1044
1045         return ;
1046 }
1047
1048
1049 void
1050 SessionDestroyModule_AUTH
1051 (wcsession *sess)
1052 {
1053         FreeStrBuf(&sess->wc_username);
1054         FreeStrBuf(&sess->wc_fullname);
1055         FreeStrBuf(&sess->wc_password);
1056         FreeStrBuf(&sess->httpauth_pass);
1057         FreeStrBuf(&sess->cs_inet_email);
1058 }