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         wprintf("<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, claimed_id, 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         lprintf(9, "SELECTED LANGUAGE: '%s'\n", bstr("language"));
 177
 178         if (havebstr("language")) {
 179                 set_selected_language(bstr("language"));
 180                 go_selected_language();
 181         }
 182
 183         if (havebstr("exit_action")) {
 184                 do_logout();
 185                 return;
 186         }
 187         Buf = NewStrBuf();
 188         if (havebstr("login_action")) {
 189                 serv_printf("USER %s", bstr("name"));
 190                 StrBuf_ServGetln(Buf);
 191                 if (GetServerStatus(Buf, NULL) == 3) {
 192                         serv_printf("PASS %s", bstr("pass"));
 193                         StrBuf_ServGetln(Buf);
 194                         if (GetServerStatus(Buf, NULL) == 2) {
 195                                 become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 196                         } else {
 197                                 snprintf(WCC->ImportantMessage,
 198                                          sizeof (WCC->ImportantMessage),
 199                                          "%s",
 200                                          &(ChrPtr(Buf))[4]);
 201                                 display_login();
 202                                 FreeStrBuf(&Buf);
 203                                 return;
 204                         }
 205                 } else {
 206                         snprintf(WCC->ImportantMessage,
 207                                  sizeof (WCC->ImportantMessage),
 208                                  "%s",
 209                                  &(ChrPtr(Buf))[4]);
 210                         display_login();
 211                         FreeStrBuf(&Buf);
 212                         return;
 213                 }
 214         }
 215         if (havebstr("newuser_action")) {
 216                 if (!havebstr("pass")) {
 217                         snprintf(WCC->ImportantMessage,
 218                                  sizeof (WCC->ImportantMessage),
 219                                  "%s",
 220                                  _("Blank passwords are not allowed."));
 221                         display_login();
 222                         FreeStrBuf(&Buf);
 223                         return;
 224                 }
 225                 serv_printf("NEWU %s", bstr("name"));
 226                 StrBuf_ServGetln(Buf);
 227                 if (GetServerStatus(Buf, NULL) == 2) {
 228                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 229                         serv_printf("SETP %s", bstr("pass"));
 230                         StrBuf_ServGetln(Buf); /* Don't care? */
 231                 } else {
 232                         snprintf(WCC->ImportantMessage,
 233                                  sizeof (WCC->ImportantMessage),
 234                                  "%s",
 235                                  &(ChrPtr(Buf))[4]);
 236                         display_login();
 237                         FreeStrBuf(&Buf);
 238                         return;
 239                 }
 240         }
 241         if (WCC->logged_in) {
 242                 if (WCC->need_regi) {
 243                         display_reg(1);
 244                 } else if (WCC->need_vali) {
 245                         validate();
 246                 } else {
 247                         do_welcome();
 248                 }
 249         } else {
 250                 snprintf(WCC->ImportantMessage,
 251                          sizeof (WCC->ImportantMessage),
 252                          "%s",
 253                          _("Your password was not accepted."));
 254                 display_login();
 255         }
 256         FreeStrBuf(&Buf);
 257 }
 258
 259 /*
 260  * Try to create an account manually after an OpenID was verified
 261  */
 262 void openid_manual_create(void)
 263 {
 264         StrBuf *Buf;
 265
 266         if (havebstr("exit_action")) {
 267                 do_logout();
 268                 return;
 269         }
 270
 271         if (havebstr("newuser_action")) {
 272                 Buf = NewStrBuf();
 273                 serv_printf("OIDC %s", bstr("name"));
 274                 StrBuf_ServGetln(Buf);
 275                 if (GetServerStatus(Buf, NULL) == 2) {
 276                         StrBuf *gpass;
 277
 278                         gpass = NewStrBuf();
 279                         serv_puts("SETP GENERATE_RANDOM_PASSWORD");
 280                         StrBuf_ServGetln(gpass);
 281                         StrBufCutLeft(gpass, 4);
 282                         become_logged_in(sbstr("name"), gpass, Buf);
 283                         FreeStrBuf(&gpass);
 284                 }
 285                 FreeStrBuf(&Buf);
 286         }
 287
 288         if (WC->logged_in) {
 289                 if (WC->need_regi) {
 290                         display_reg(1);
 291                 } else if (WC->need_vali) {
 292                         validate();
 293                 } else {
 294                         do_welcome();
 295                 }
 296         } else {
 297                 display_openid_name_request(sbstr("openid_url"), sbstr("name"));
 298         }
 299
 300 }
 301
 302
 303 /*
 304  * Perform authentication using OpenID
 305  * assemble the checkid_setup request and then redirect to the user's identity provider
 306  */
 307 void do_openid_login(void)
 308 {
 309         wcsession *WCC = WC;
 310         char buf[4096];
 311
 312         if (havebstr("language")) {
 313                 set_selected_language(bstr("language"));
 314                 go_selected_language();
 315         }
 316
 317         if (havebstr("exit_action")) {
 318                 do_logout();
 319                 return;
 320         }
 321         if (havebstr("login_action")) {
 322                 snprintf(buf, sizeof buf,
 323                         "OIDS %s|%s://%s/finalize_openid_login|%s://%s",
 324                         bstr("openid_url"),
 325                          (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->HR.http_host),
 326                          (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->HR.http_host)
 327                 );
 328
 329                 serv_puts(buf);
 330                 serv_getln(buf, sizeof buf);
 331                 if (buf[0] == '2') {
 332                         lprintf(CTDL_DEBUG, "OpenID server contacted; redirecting to %s\n", &buf[4]);
 333                         http_redirect(&buf[4]);
 334                         return;
 335                 }
 336                 else {
 337                         display_openid_login(&buf[4]);
 338                         return;
 339                 }
 340         }
 341
 342         /* If we get to this point then something failed. */
 343         display_openid_login(_("Your password was not accepted."));
 344 }
 345
 346 /*
 347  * Complete the authentication using OpenID
 348  * This function handles the positive or negative assertion from the user's Identity Provider
 349  */
 350 void finalize_openid_login(void)
 351 {
 352         StrBuf *Buf;
 353         wcsession *WCC = WC;
 354         int already_logged_in = (WCC->logged_in) ;
 355         int linecount = 0;
 356         StrBuf *result = NULL;
 357         StrBuf *username = NULL;
 358         StrBuf *password = NULL;
 359         StrBuf *logged_in_response = NULL;
 360         StrBuf *claimed_id = NULL;
 361
 362         if (havebstr("openid.mode")) {
 363                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 364                         Buf = NewStrBuf();
 365                         serv_puts("OIDF");
 366                         StrBuf_ServGetln(Buf);
 367                         if (GetServerStatus(Buf, NULL) == 8) {
 368                                 urlcontent *u;
 369                                 void *U;
 370                                 long HKLen;
 371                                 const char *HKey;
 372                                 HashPos *Cursor;
 373
 374                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 375                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 376                                         u = (urlcontent*) U;
 377                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 378                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 379                                         }
 380                                 }
 381
 382                                 serv_puts("000");
 383
 384                                 linecount = 0;
 385                                 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000"))
 386                                 {
 387                                         if (linecount == 0) result = NewStrBufDup(Buf);
 388                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 389                                                 if (linecount == 1) {
 390                                                         username = NewStrBufDup(Buf);
 391                                                 }
 392                                                 else if (linecount == 2) {
 393                                                         password = NewStrBufDup(Buf);
 394                                                 }
 395                                                 else if (linecount == 3) {
 396                                                         logged_in_response = NewStrBufDup(Buf);
 397                                                 }
 398                                         }
 399                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 400                                                 if (linecount == 1) {
 401                                                         claimed_id = NewStrBufDup(Buf);
 402                                                 }
 403                                                 if (linecount == 2) {
 404                                                         username = NewStrBufDup(Buf);
 405                                                 }
 406                                         }
 407                                         ++linecount;
 408                                 }
 409                         }
 410                         FreeStrBuf(&Buf);
 411                 }
 412         }
 413
 414         /* If we were already logged in, this was an attempt to associate an OpenID account */
 415         if (already_logged_in) {
 416                 display_openids();
 417                 FreeStrBuf(&result);
 418                 FreeStrBuf(&username);
 419                 FreeStrBuf(&password);
 420                 FreeStrBuf(&claimed_id);
 421                 FreeStrBuf(&logged_in_response);
 422                 return;
 423         }
 424
 425         /* If this operation logged us in, either by connecting with an existing account or by
 426          * auto-creating one using Simple Registration Extension, we're already on our way.
 427          */
 428         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 429                 become_logged_in(username, password, logged_in_response);
 430         }
 431
 432         /* The specified OpenID was verified but the desired user name was either not specified via SRI
 433          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 434          */
 435
 436         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 437                 display_openid_name_request(claimed_id, username);
 438         }
 439
 440         /* Did we manage to log in?  If so, continue with the normal flow... */
 441         if (WC->logged_in) {
 442                 if (WC->need_regi) {
 443                         display_reg(1);
 444                 } else {
 445                         do_welcome();
 446                 }
 447         } else {
 448                 display_openid_login(_("Your password was not accepted."));
 449         }
 450
 451         FreeStrBuf(&result);
 452         FreeStrBuf(&username);
 453         FreeStrBuf(&password);
 454         FreeStrBuf(&claimed_id);
 455         FreeStrBuf(&logged_in_response);
 456 }
 457
 458
 459 /*
 460  * Display a welcome screen to the user.
 461  *
 462  * If this is the first time login, and the web based setup is enabled,
 463  * lead the user through the setup routines
 464  */
 465 void do_welcome(void)
 466 {
 467         StrBuf *Buf;
 468 #ifdef XXX_NOT_FINISHED_YET_XXX
 469         FILE *fp;
 470         int i;
 471
 472         /**
 473          * See if we have to run the first-time setup wizard
 474          */
 475         if (WC->is_aide) {
 476                 if (!setup_wizard) {
 477                         int len;
 478                         sprintf(wizard_filename, "setupwiz.%s.%s",
 479                                 ctdlhost, ctdlport);
 480                         len = strlen(wizard_filename);
 481                         for (i=0; i<len; ++i) {
 482                                 if (    (wizard_filename[i]==' ')
 483                                         || (wizard_filename[i] == '/')
 484                                 ) {
 485                                         wizard_filename[i] = '_';
 486                                 }
 487                         }
 488
 489                         fp = fopen(wizard_filename, "r");
 490                         if (fp != NULL) {
 491                                 fgets(buf, sizeof buf, fp);
 492                                 buf[strlen(buf)-1] = 0;
 493                                 fclose(fp);
 494                                 if (atoi(buf) == serv_info.serv_rev_level) {
 495                                         setup_wizard = 1; /**< already run */
 496                                 }
 497                         }
 498                 }
 499
 500                 if (!setup_wizard) {
 501                         http_redirect("setup_wizard");
 502                 }
 503         }
 504 #endif
 505
 506         /*
 507          * Go to the user's preferred start page
 508          */
 509         if (!get_preference("startpage", &Buf)) {
 510                 Buf = NewStrBuf ();
 511                 StrBufPrintf(Buf, "dotskip&room=_BASEROOM_");
 512                 set_preference("startpage", Buf, 1);
 513         }
 514         if (ChrPtr(Buf)[0] == '/') {
 515                 StrBufCutLeft(Buf, 1);
 516         }
 517         if (StrLength(Buf) == 0)
 518                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 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->wc_roomname);
 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         wprintf("<div id=\"logout_screen\">");
 554         wprintf("<div class=\"box\">");
 555         wprintf("<div class=\"boxlabel\">");
 556         wprintf(_("Log off"));
 557         wprintf("</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                         wprintf("Goodbye\n");
 566                 }
 567         }
 568         else {
 569                 wprintf(_("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                 wprintf("<a href=\"http://www.citadel.org/doku.php/"
 574                         "faq:mastering_your_os:net#netstat\">%s</a>",
 575                         _("Read More..."));
 576         }
 577
 578         wprintf("<hr /><div class=\"buttons\"> "
 579                 "<span class=\"button_link\"><a href=\".\">");
 580         wprintf(_("Log in again"));
 581         wprintf("</a></span>");
 582
 583         /* The "close window" link is commented out because some browsers don't
 584          * allow it to work.
 585          *
 586         wprintf("&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
 587                 "<a href=\"javascript:window.close();\">");
 588         wprintf(_("Close window"));
 589         wprintf("</a></span>");
 590          */
 591
 592         wprintf("</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         wprintf("<div id=\"banner\">\n");
 610         wprintf("<h1>");
 611         wprintf(_("Validate new users"));
 612         wprintf("</h1>");
 613         wprintf("</div>\n");
 614
 615         wprintf("<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                                 wprintf("<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                 wprintf("<b>");
 634                 wprintf(_("No users require validation at this time."));
 635                 wprintf("</b><br>\n");
 636                 wDumpContent(1);
 637                 return;
 638         }
 639         if (buf[0] != '3') {
 640                 wprintf("<b>%s</b><br>\n", &buf[4]);
 641                 wDumpContent(1);
 642                 return;
 643         }
 644
 645         wprintf("<div class=\"fix_scrollbar_bug\">"
 646                 "<table class=\"auth_validate\"><tr><td>\n");
 647         wprintf("<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                                 wprintf("#%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                                 wprintf("PW: %s<br>\n", pch);
 696                         }
 697                         if (a == 3)
 698                                 wprintf("%s<br>\n", buf);
 699                         if (a == 4)
 700                                 wprintf("%s<br>\n", buf);
 701                         if (a == 5)
 702                                 wprintf("%s, ", buf);
 703                         if (a == 6)
 704                                 wprintf("%s ", buf);
 705                         if (a == 7)
 706                                 wprintf("%s<br>\n", buf);
 707                         if (a == 8)
 708                                 wprintf("%s<br>\n", buf);
 709                         if (a == 9)
 710                                 wprintf(_("Current access level: %d (%s)\n"),
 711                                         atoi(buf), axdefs[atoi(buf)]);
 712                 } while (strcmp(buf, "000"));
 713         } else {
 714                 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 715         }
 716
 717         wprintf("<hr />");
 718         wprintf(_("Select access level for this user:"));
 719         wprintf("<br />\n");
 720         for (a = 0; a <= 6; ++a) {
 721                 wprintf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 722                 urlescputs(user);
 723                 wprintf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 724                         a, axdefs[a]);
 725         }
 726         wprintf("<br />\n");
 727
 728         wprintf("</div>\n");
 729         wprintf("</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         StrBuf *Buf;
 744         message_summary *VCMsg;
 745         wc_mime_attachment *VCAtt;
 746         long vcard_msgnum;
 747
 748         Buf = NewStrBuf();
 749         if (goto_config_room(Buf) != 0) {
 750                 if (during_login) do_welcome();
 751                 else display_main_menu();
 752                 FreeStrBuf(&Buf);
 753                 return;
 754         }
 755
 756         FreeStrBuf(&Buf);
 757         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 758         if (vcard_msgnum < 0L) {
 759                 if (during_login) do_welcome();
 760                 else display_main_menu();
 761                 return;
 762         }
 763
 764         if (during_login) {
 765                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "do_welcome", USERCONFIGROOM);
 766         }
 767         else {
 768                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "display_main_menu", USERCONFIGROOM);
 769         }
 770
 771 }
 772
 773
 774
 775
 776 /*
 777  * display form for changing your password
 778  */
 779 void display_changepw(void)
 780 {
 781         WCTemplputParams SubTP;
 782         char buf[SIZ];
 783         StrBuf *Buf;
 784         output_headers(1, 1, 1, 0, 0, 0);
 785
 786         Buf = NewStrBufPlain(_("Change your password"), -1);
 787         memset(&SubTP, 0, sizeof(WCTemplputParams));
 788         SubTP.Filter.ContextType = CTX_STRBUF;
 789         SubTP.Context = Buf;
 790         DoTemplate(HKEY("beginbox"), NULL, &SubTP);
 791
 792         FreeStrBuf(&Buf);
 793
 794         if (!IsEmptyStr(WC->ImportantMessage)) {
 795                 wprintf("<span class=\"errormsg\">"
 796                         "%s</span><br />\n", WC->ImportantMessage);
 797                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 798         }
 799
 800         serv_puts("MESG changepw");
 801         serv_getln(buf, sizeof buf);
 802         if (buf[0] == '1') {
 803                 fmout("CENTER");
 804         }
 805
 806         wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 807         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 808         wprintf("<table class=\"altern\" ");
 809         wprintf("<tr class=\"even\"><td>");
 810         wprintf(_("Enter new password:"));
 811         wprintf("</td><td>");
 812         wprintf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 813         wprintf("<tr class=\"odd\"><td>");
 814         wprintf(_("Enter it again to confirm:"));
 815         wprintf("</td><td>");
 816         wprintf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 817         wprintf("</table>\n");
 818
 819         wprintf("<div class=\"buttons\">\n");
 820         wprintf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 821         wprintf("&nbsp;");
 822         wprintf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 823         wprintf("</div>\n");
 824         wprintf("</form>\n");
 825
 826         do_template("endbox", NULL);
 827         wDumpContent(1);
 828 }
 829
 830 /*
 831  * change password
 832  * if passwords match, propagate it to citserver.
 833  */
 834 void changepw(void)
 835 {
 836         char buf[SIZ];
 837         char newpass1[32], newpass2[32];
 838
 839         if (!havebstr("change_action")) {
 840                 safestrncpy(WC->ImportantMessage,
 841                         _("Cancelled.  Password was not changed."),
 842                         sizeof WC->ImportantMessage);
 843                 display_main_menu();
 844                 return;
 845         }
 846
 847         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 848         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 849
 850         if (strcasecmp(newpass1, newpass2)) {
 851                 safestrncpy(WC->ImportantMessage,
 852                         _("They don't match.  Password was not changed."),
 853                         sizeof WC->ImportantMessage);
 854                 display_changepw();
 855                 return;
 856         }
 857
 858         if (IsEmptyStr(newpass1)) {
 859                 safestrncpy(WC->ImportantMessage,
 860                         _("Blank passwords are not allowed."),
 861                         sizeof WC->ImportantMessage);
 862                 display_changepw();
 863                 return;
 864         }
 865
 866         serv_printf("SETP %s", newpass1);
 867         serv_getln(buf, sizeof buf);
 868         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 869         if (buf[0] == '2') {
 870                 if (WC->wc_password == NULL)
 871                         WC->wc_password = NewStrBufPlain(buf, -1);
 872                 else {
 873                         FlushStrBuf(WC->wc_password);
 874                         StrBufAppendBufPlain(WC->wc_password,  buf, -1, 0);
 875                 }
 876                 display_main_menu();
 877         }
 878         else {
 879                 display_changepw();
 880         }
 881 }
 882
 883 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 884 {
 885         wcsession *WCC = WC;
 886         return (WCC != NULL)? (WC->is_aide == 0) : 0;
 887 }
 888
 889 int ConditionalRoomAide(StrBuf *Target, WCTemplputParams *TP)
 890 {
 891         wcsession *WCC = WC;
 892         return (WCC != NULL)? (WCC->is_room_aide == 0) : 0;
 893 }
 894
 895 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP)
 896 {
 897         wcsession *WCC = WC;
 898         return (WCC != NULL)? (WCC->logged_in == 0) : 0;
 899 }
 900 int ConditionalRoomAcessDelete(StrBuf *Target, WCTemplputParams *TP)
 901 {
 902         wcsession *WCC = WC;
 903         return (WCC != NULL)? ( (WCC->is_room_aide) || (WCC->is_mailbox) || (WCC->room_flags2 & QR2_COLLABDEL) ) : 0;
 904 }
 905
 906
 907
 908 void _display_openid_login(void) {display_openid_login(NULL);}
 909 void _display_reg(void) {display_reg(0);}
 910
 911 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 912 {
 913         if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
 914         {
 915                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 916                         StrBufCutLeft(Line, 6);
 917                         StrBufDecodeBase64(Line);
 918                         hdr->HR.plainauth = Line;
 919                         hdr->HR.got_auth = AUTH_BASIC;
 920                 }
 921                 else
 922                         lprintf(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 923         }
 924 }
 925
 926 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 927 {
 928 /*
 929   todo: enable this if we can have other sessions than authenticated ones.
 930         if (hdr->DontNeedAuth)
 931                 return;
 932 */
 933         StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
 934         StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
 935         hdr->HR.SessionKey = hashlittle(SKEY(hdr->HR.plainauth), 89479832);
 936
 937 }
 938
 939 void GetAuthBasic(ParsedHttpHdrs *hdr)
 940 {
 941         const char *Pos = NULL;
 942         if (hdr->c_username == NULL)
 943                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 944         if (hdr->c_password == NULL)
 945                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 946         StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
 947         StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
 948 }
 949
 950 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
 951 {
 952         const char *pch;
 953 /*
 954   todo: enable this if we can have other sessions than authenticated ones.
 955         if (hdr->DontNeedAuth)
 956                 return;
 957 */
 958         pch = strstr(ChrPtr(Line), "webcit=");
 959         if (pch == NULL) {
 960                 return;
 961         }
 962
 963         hdr->HR.RawCookie = Line;
 964         StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
 965         StrBufDecodeHex(hdr->HR.RawCookie);
 966
 967         if (hdr->c_username == NULL)
 968                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 969         if (hdr->c_password == NULL)
 970                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 971         if (hdr->c_roomname == NULL)
 972                 hdr->c_roomname = NewStrBuf();
 973         if (hdr->c_language == NULL)
 974                 hdr->c_language = NewStrBuf();
 975         cookie_to_stuff(Line, &hdr->HR.desired_session,
 976                         hdr->c_username,
 977                         hdr->c_password,
 978                         hdr->c_roomname,
 979                         hdr->c_language
 980         );
 981         hdr->HR.got_auth = AUTH_COOKIE;
 982 }
 983
 984 void
 985 HttpDetachModule_AUTH
 986 (ParsedHttpHdrs *httpreq)
 987 {
 988         FLUSHStrBuf(httpreq->c_username);
 989         FLUSHStrBuf(httpreq->c_password);
 990         FLUSHStrBuf(httpreq->c_roomname);
 991         FLUSHStrBuf(httpreq->c_language);
 992 }
 993
 994 void
 995 HttpDestroyModule_AUTH
 996 (ParsedHttpHdrs *httpreq)
 997 {
 998         FreeStrBuf(&httpreq->c_username);
 999         FreeStrBuf(&httpreq->c_password);
1000         FreeStrBuf(&httpreq->c_roomname);
1001         FreeStrBuf(&httpreq->c_language);
1002 }
1003
1004 void
1005 InitModule_AUTH
1006 (void)
1007 {
1008         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
1009         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
1010
1011         WebcitAddUrlHandler(HKEY(""), do_welcome, ANONYMOUS|COOKIEUNNEEDED); /* no url pattern at all? Show login. */
1012         WebcitAddUrlHandler(HKEY("do_welcome"), do_welcome, ANONYMOUS|COOKIEUNNEEDED);
1013         WebcitAddUrlHandler(HKEY("login"), do_login, ANONYMOUS|COOKIEUNNEEDED);
1014         WebcitAddUrlHandler(HKEY("display_openid_login"), _display_openid_login, ANONYMOUS);
1015         WebcitAddUrlHandler(HKEY("openid_login"), do_openid_login, ANONYMOUS);
1016         WebcitAddUrlHandler(HKEY("finalize_openid_login"), finalize_openid_login, ANONYMOUS);
1017         WebcitAddUrlHandler(HKEY("openid_manual_create"), openid_manual_create, ANONYMOUS);
1018         WebcitAddUrlHandler(HKEY("do_logout"), do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1019         WebcitAddUrlHandler(HKEY("validate"), validate, 0);
1020         WebcitAddUrlHandler(HKEY("display_reg"), _display_reg, 0);
1021         WebcitAddUrlHandler(HKEY("display_changepw"), display_changepw, 0);
1022         WebcitAddUrlHandler(HKEY("changepw"), changepw, 0);
1023         WebcitAddUrlHandler(HKEY("termquit"), do_logout, 0);
1024
1025         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1026         RegisterConditional(HKEY("COND:ROOMAIDE"), 2, ConditionalRoomAide, CTX_NONE);
1027         RegisterConditional(HKEY("COND:ACCESS:DELETE"), 2, ConditionalRoomAcessDelete, CTX_NONE);
1028         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1029
1030         return ;
1031 }
1032
1033
1034 void
1035 SessionDestroyModule_AUTH
1036 (wcsession *sess)
1037 {
1038         FreeStrBuf(&sess->wc_username);
1039         FreeStrBuf(&sess->wc_fullname);
1040         FreeStrBuf(&sess->wc_password);
1041         FreeStrBuf(&sess->wc_roomname);
1042         FreeStrBuf(&sess->httpauth_pass);
1043         FreeStrBuf(&sess->cs_inet_email);
1044 }