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         lprintf(9, "%s:%d CHEK server reply: %s\n", __FILE__, __LINE__, ChrPtr(Buf));
 152         if (GetServerStatus(Buf, NULL) == 2) {
 153                 const char *pch;
 154
 155                 pch = ChrPtr(Buf) + 4;
 156                 WCC->new_mail  = StrBufExtractNext_long(Buf, &pch, '|');
 157                 WCC->need_regi = StrBufExtractNext_long(Buf, &pch, '|');
 158                 WCC->need_vali = StrBufExtractNext_long(Buf, &pch, '|');
 159                 if (WCC->cs_inet_email == NULL)
 160                         WCC->cs_inet_email  = NewStrBuf();
 161                 StrBufExtract_NextToken(WCC->cs_inet_email, Buf, &pch, '|');
 162         }
 163         get_preference("floordiv_expanded", &FloorDiv);
 164         WCC->floordiv_expanded = FloorDiv;
 165         FreeStrBuf(&Buf);
 166 }
 167
 168
 169 /*
 170  * Perform authentication using a user name and password
 171  */
 172 void do_login(void)
 173 {
 174         wcsession *WCC = WC;
 175         StrBuf *Buf;
 176
 177         if (havebstr("language")) {
 178                 set_selected_language(bstr("language"));
 179                 go_selected_language();
 180         }
 181
 182         if (havebstr("exit_action")) {
 183                 do_logout();
 184                 return;
 185         }
 186         Buf = NewStrBuf();
 187         if (havebstr("login_action")) {
 188                 serv_printf("USER %s", bstr("name"));
 189                 StrBuf_ServGetln(Buf);
 190                 if (GetServerStatus(Buf, NULL) == 3) {
 191                         serv_printf("PASS %s", bstr("pass"));
 192                         StrBuf_ServGetln(Buf);
 193                         if (GetServerStatus(Buf, NULL) == 2) {
 194                                 become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 195                         } else {
 196                                 snprintf(WCC->ImportantMessage,
 197                                          sizeof (WCC->ImportantMessage),
 198                                          "%s",
 199                                          &(ChrPtr(Buf))[4]);
 200                                 display_login();
 201                                 FreeStrBuf(&Buf);
 202                                 return;
 203                         }
 204                 } else {
 205                         snprintf(WCC->ImportantMessage,
 206                                  sizeof (WCC->ImportantMessage),
 207                                  "%s",
 208                                  &(ChrPtr(Buf))[4]);
 209                         display_login();
 210                         FreeStrBuf(&Buf);
 211                         return;
 212                 }
 213         }
 214         if (havebstr("newuser_action")) {
 215                 if (!havebstr("pass")) {
 216                         snprintf(WCC->ImportantMessage,
 217                                  sizeof (WCC->ImportantMessage),
 218                                  "%s",
 219                                  _("Blank passwords are not allowed."));
 220                         display_login();
 221                         FreeStrBuf(&Buf);
 222                         return;
 223                 }
 224                 serv_printf("NEWU %s", bstr("name"));
 225                 StrBuf_ServGetln(Buf);
 226                 if (GetServerStatus(Buf, NULL) == 2) {
 227                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 228                         serv_printf("SETP %s", bstr("pass"));
 229                         StrBuf_ServGetln(Buf); /* Don't care? */
 230                 } else {
 231                         snprintf(WCC->ImportantMessage,
 232                                  sizeof (WCC->ImportantMessage),
 233                                  "%s",
 234                                  &(ChrPtr(Buf))[4]);
 235                         display_login();
 236                         FreeStrBuf(&Buf);
 237                         return;
 238                 }
 239         }
 240         if (WCC->logged_in) {
 241                 if (WCC->need_regi) {
 242                         display_reg(1);
 243                 } else if (WCC->need_vali) {
 244                         validate();
 245                 } else {
 246                         do_welcome();
 247                 }
 248         } else {
 249                 snprintf(WCC->ImportantMessage,
 250                          sizeof (WCC->ImportantMessage),
 251                          "%s",
 252                          _("Your password was not accepted."));
 253                 display_login();
 254         }
 255         FreeStrBuf(&Buf);
 256 }
 257
 258 /*
 259  * Try to create an account manually after an OpenID was verified
 260  */
 261 void openid_manual_create(void)
 262 {
 263         StrBuf *Buf;
 264
 265         if (havebstr("exit_action")) {
 266                 do_logout();
 267                 return;
 268         }
 269
 270         if (havebstr("newuser_action")) {
 271                 Buf = NewStrBuf();
 272                 serv_printf("OIDC %s", bstr("name"));
 273                 StrBuf_ServGetln(Buf);
 274                 if (GetServerStatus(Buf, NULL) == 2) {
 275                         StrBuf *gpass;
 276
 277                         gpass = NewStrBuf();
 278                         serv_puts("SETP GENERATE_RANDOM_PASSWORD");
 279                         StrBuf_ServGetln(gpass);
 280                         StrBufCutLeft(gpass, 4);
 281                         become_logged_in(sbstr("name"), gpass, Buf);
 282                         FreeStrBuf(&gpass);
 283                 }
 284                 FreeStrBuf(&Buf);
 285         }
 286
 287         if (WC->logged_in) {
 288                 if (WC->need_regi) {
 289                         display_reg(1);
 290                 } else if (WC->need_vali) {
 291                         validate();
 292                 } else {
 293                         do_welcome();
 294                 }
 295         } else {
 296                 display_openid_name_request(sbstr("openid_url"), sbstr("name"));
 297         }
 298
 299 }
 300
 301
 302 /*
 303  * Perform authentication using OpenID
 304  * assemble the checkid_setup request and then redirect to the user's identity provider
 305  */
 306 void do_openid_login(void)
 307 {
 308         wcsession *WCC = WC;
 309         char buf[4096];
 310
 311         if (havebstr("language")) {
 312                 set_selected_language(bstr("language"));
 313                 go_selected_language();
 314         }
 315
 316         if (havebstr("exit_action")) {
 317                 do_logout();
 318                 return;
 319         }
 320         if (havebstr("login_action")) {
 321                 snprintf(buf, sizeof buf,
 322                         "OIDS %s|%s://%s/finalize_openid_login|%s://%s",
 323                         bstr("openid_url"),
 324                          (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->HR.http_host),
 325                          (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->HR.http_host)
 326                 );
 327
 328                 serv_puts(buf);
 329                 serv_getln(buf, sizeof buf);
 330                 if (buf[0] == '2') {
 331                         lprintf(CTDL_DEBUG, "OpenID server contacted; redirecting to %s\n", &buf[4]);
 332                         http_redirect(&buf[4]);
 333                         return;
 334                 }
 335                 else {
 336                         display_openid_login(&buf[4]);
 337                         return;
 338                 }
 339         }
 340
 341         /* If we get to this point then something failed. */
 342         display_openid_login(_("Your password was not accepted."));
 343 }
 344
 345 /*
 346  * Complete the authentication using OpenID
 347  * This function handles the positive or negative assertion from the user's Identity Provider
 348  */
 349 void finalize_openid_login(void)
 350 {
 351         StrBuf *Buf;
 352         wcsession *WCC = WC;
 353         int already_logged_in = (WCC->logged_in) ;
 354         int linecount = 0;
 355         StrBuf *result = NULL;
 356         StrBuf *username = NULL;
 357         StrBuf *password = NULL;
 358         StrBuf *logged_in_response = NULL;
 359         StrBuf *claimed_id = NULL;
 360
 361         if (havebstr("openid.mode")) {
 362                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 363                         Buf = NewStrBuf();
 364                         serv_puts("OIDF");
 365                         StrBuf_ServGetln(Buf);
 366                         if (GetServerStatus(Buf, NULL) == 8) {
 367                                 urlcontent *u;
 368                                 void *U;
 369                                 long HKLen;
 370                                 const char *HKey;
 371                                 HashPos *Cursor;
 372
 373                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 374                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 375                                         u = (urlcontent*) U;
 376                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 377                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 378                                         }
 379                                 }
 380
 381                                 serv_puts("000");
 382
 383                                 linecount = 0;
 384                                 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000"))
 385                                 {
 386                                         if (linecount == 0) result = NewStrBufDup(Buf);
 387                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 388                                                 if (linecount == 1) {
 389                                                         username = NewStrBufDup(Buf);
 390                                                 }
 391                                                 else if (linecount == 2) {
 392                                                         password = NewStrBufDup(Buf);
 393                                                 }
 394                                                 else if (linecount == 3) {
 395                                                         logged_in_response = NewStrBufDup(Buf);
 396                                                 }
 397                                         }
 398                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 399                                                 if (linecount == 1) {
 400                                                         claimed_id = NewStrBufDup(Buf);
 401                                                 }
 402                                                 if (linecount == 2) {
 403                                                         username = NewStrBufDup(Buf);
 404                                                 }
 405                                         }
 406                                         ++linecount;
 407                                 }
 408                         }
 409                         FreeStrBuf(&Buf);
 410                 }
 411         }
 412
 413         /* If we were already logged in, this was an attempt to associate an OpenID account */
 414         if (already_logged_in) {
 415                 display_openids();
 416                 FreeStrBuf(&result);
 417                 FreeStrBuf(&username);
 418                 FreeStrBuf(&password);
 419                 FreeStrBuf(&claimed_id);
 420                 FreeStrBuf(&logged_in_response);
 421                 return;
 422         }
 423
 424         /* If this operation logged us in, either by connecting with an existing account or by
 425          * auto-creating one using Simple Registration Extension, we're already on our way.
 426          */
 427         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 428                 become_logged_in(username, password, logged_in_response);
 429         }
 430
 431         /* The specified OpenID was verified but the desired user name was either not specified via SRI
 432          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 433          */
 434
 435         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 436                 display_openid_name_request(claimed_id, username);
 437         }
 438
 439         /* Did we manage to log in?  If so, continue with the normal flow... */
 440         if (WC->logged_in) {
 441                 if (WC->need_regi) {
 442                         display_reg(1);
 443                 } else {
 444                         do_welcome();
 445                 }
 446         } else {
 447                 display_openid_login(_("Your password was not accepted."));
 448         }
 449
 450         FreeStrBuf(&result);
 451         FreeStrBuf(&username);
 452         FreeStrBuf(&password);
 453         FreeStrBuf(&claimed_id);
 454         FreeStrBuf(&logged_in_response);
 455 }
 456
 457
 458 /*
 459  * Display a welcome screen to the user.
 460  *
 461  * If this is the first time login, and the web based setup is enabled,
 462  * lead the user through the setup routines
 463  */
 464 void do_welcome(void)
 465 {
 466         StrBuf *Buf;
 467 #ifdef XXX_NOT_FINISHED_YET_XXX
 468         FILE *fp;
 469         int i;
 470
 471         /**
 472          * See if we have to run the first-time setup wizard
 473          */
 474         if (WC->is_aide) {
 475                 if (!setup_wizard) {
 476                         int len;
 477                         sprintf(wizard_filename, "setupwiz.%s.%s",
 478                                 ctdlhost, ctdlport);
 479                         len = strlen(wizard_filename);
 480                         for (i=0; i<len; ++i) {
 481                                 if (    (wizard_filename[i]==' ')
 482                                         || (wizard_filename[i] == '/')
 483                                 ) {
 484                                         wizard_filename[i] = '_';
 485                                 }
 486                         }
 487
 488                         fp = fopen(wizard_filename, "r");
 489                         if (fp != NULL) {
 490                                 fgets(buf, sizeof buf, fp);
 491                                 buf[strlen(buf)-1] = 0;
 492                                 fclose(fp);
 493                                 if (atoi(buf) == serv_info.serv_rev_level) {
 494                                         setup_wizard = 1; /**< already run */
 495                                 }
 496                         }
 497                 }
 498
 499                 if (!setup_wizard) {
 500                         http_redirect("setup_wizard");
 501                 }
 502         }
 503 #endif
 504
 505         /*
 506          * Go to the user's preferred start page
 507          */
 508         if (!get_preference("startpage", &Buf)) {
 509                 Buf = NewStrBuf ();
 510                 StrBufPrintf(Buf, "dotskip?room=_BASEROOM_");
 511                 set_preference("startpage", Buf, 1);
 512         }
 513         if (ChrPtr(Buf)[0] == '/') {
 514                 StrBufCutLeft(Buf, 1);
 515         }
 516         if (StrLength(Buf) == 0) {
 517                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 518         }
 519         lprintf(9, "Redirecting to user's start page: %s\n", ChrPtr(Buf));
 520         http_redirect(ChrPtr(Buf));
 521 }
 522
 523
 524 /*
 525  * Disconnect from the Citadel server, and end this WebCit session
 526  */
 527 void end_webcit_session(void) {
 528
 529         serv_puts("QUIT");
 530         WC->killthis = 1;
 531         /* close() of citadel socket will be done by do_housekeeping() */
 532 }
 533
 534 /*
 535  * execute the logout
 536  */
 537 void do_logout(void)
 538 {
 539         wcsession *WCC = WC;
 540         char buf[SIZ];
 541
 542         FlushStrBuf(WCC->wc_username);
 543         FlushStrBuf(WCC->wc_password);
 544         FlushStrBuf(WCC->wc_roomname);
 545         FlushStrBuf(WCC->wc_fullname);
 546
 547         /* FIXME: this is to suppress the iconbar displaying, because we aren't
 548            actually logged out yet */
 549         WCC->logged_in = 0;
 550
 551         /** Calling output_headers() this way causes the cookies to be un-set */
 552         output_headers(1, 1, 0, 1, 0, 0);
 553
 554         wprintf("<div id=\"logout_screen\">");
 555         wprintf("<div class=\"box\">");
 556         wprintf("<div class=\"boxlabel\">");
 557         wprintf(_("Log off"));
 558         wprintf("</div><div class=\"boxcontent\">");
 559         serv_puts("MESG goodbye");
 560         serv_getln(buf, sizeof buf);
 561
 562         if (WCC->serv_sock >= 0) {
 563                 if (buf[0] == '1') {
 564                         fmout("CENTER");
 565                 } else {
 566                         wprintf("Goodbye\n");
 567                 }
 568         }
 569         else {
 570                 wprintf(_("This program was unable to connect or stay "
 571                         "connected to the Citadel server.  Please report "
 572                         "this problem to your system administrator.")
 573                 );
 574                 wprintf("<a href=\"http://www.citadel.org/doku.php/"
 575                         "faq:mastering_your_os:net#netstat\">%s</a>",
 576                         _("Read More..."));
 577         }
 578
 579         wprintf("<hr /><div class=\"buttons\"> "
 580                 "<span class=\"button_link\"><a href=\".\">");
 581         wprintf(_("Log in again"));
 582         wprintf("</a></span>");
 583
 584         /* The "close window" link is commented out because some browsers don't
 585          * allow it to work.
 586          *
 587         wprintf("&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
 588                 "<a href=\"javascript:window.close();\">");
 589         wprintf(_("Close window"));
 590         wprintf("</a></span>");
 591          */
 592
 593         wprintf("</div></div></div></div>\n");
 594         wDumpContent(2);
 595         end_webcit_session();
 596 }
 597
 598
 599 /*
 600  * validate new users
 601  */
 602 void validate(void)
 603 {
 604         char cmd[SIZ];
 605         char user[SIZ];
 606         char buf[SIZ];
 607         int a;
 608
 609         output_headers(1, 1, 2, 0, 0, 0);
 610         wprintf("<div id=\"banner\">\n");
 611         wprintf("<h1>");
 612         wprintf(_("Validate new users"));
 613         wprintf("</h1>");
 614         wprintf("</div>\n");
 615
 616         wprintf("<div id=\"content\" class=\"service\">\n");
 617
 618         /* If the user just submitted a validation, process it... */
 619         safestrncpy(buf, bstr("user"), sizeof buf);
 620         if (!IsEmptyStr(buf)) {
 621                 if (havebstr("axlevel")) {
 622                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 623                         serv_getln(buf, sizeof buf);
 624                         if (buf[0] != '2') {
 625                                 wprintf("<b>%s</b><br>\n", &buf[4]);
 626                         }
 627                 }
 628         }
 629
 630         /* Now see if any more users require validation. */
 631         serv_puts("GNUR");
 632         serv_getln(buf, sizeof buf);
 633         if (buf[0] == '2') {
 634                 wprintf("<b>");
 635                 wprintf(_("No users require validation at this time."));
 636                 wprintf("</b><br>\n");
 637                 wDumpContent(1);
 638                 return;
 639         }
 640         if (buf[0] != '3') {
 641                 wprintf("<b>%s</b><br>\n", &buf[4]);
 642                 wDumpContent(1);
 643                 return;
 644         }
 645
 646         wprintf("<div class=\"fix_scrollbar_bug\">"
 647                 "<table class=\"auth_validate\"><tr><td>\n");
 648         wprintf("<div id=\"validate\">");
 649
 650         safestrncpy(user, &buf[4], sizeof user);
 651         serv_printf("GREG %s", user);
 652         serv_getln(cmd, sizeof cmd);
 653         if (cmd[0] == '1') {
 654                 a = 0;
 655                 do {
 656                         serv_getln(buf, sizeof buf);
 657                         ++a;
 658                         if (a == 1)
 659                                 wprintf("#%s<br><H1>%s</H1>",
 660                                         buf, &cmd[4]);
 661                         if (a == 2) {
 662                                 char *pch;
 663                                 int haveChar = 0;
 664                                 int haveNum = 0;
 665                                 int haveOther = 0;
 666                                 int count = 0;
 667                                 pch = buf;
 668                                 while (!IsEmptyStr(pch))
 669                                 {
 670                                         if (isdigit(*pch))
 671                                                 haveNum = 1;
 672                                         else if (isalpha(*pch))
 673                                                 haveChar = 1;
 674                                         else
 675                                                 haveOther = 1;
 676                                         pch ++;
 677                                 }
 678                                 count = pch - buf;
 679                                 if (count > 7)
 680                                         count = 0;
 681                                 switch (count){
 682                                 case 0:
 683                                         pch = _("very weak");
 684                                         break;
 685                                 case 1:
 686                                         pch = _("weak");
 687                                         break;
 688                                 case 2:
 689                                         pch = _("ok");
 690                                         break;
 691                                 case 3:
 692                                 default:
 693                                         pch = _("strong");
 694                                 }
 695
 696                                 wprintf("PW: %s<br>\n", pch);
 697                         }
 698                         if (a == 3)
 699                                 wprintf("%s<br>\n", buf);
 700                         if (a == 4)
 701                                 wprintf("%s<br>\n", buf);
 702                         if (a == 5)
 703                                 wprintf("%s, ", buf);
 704                         if (a == 6)
 705                                 wprintf("%s ", buf);
 706                         if (a == 7)
 707                                 wprintf("%s<br>\n", buf);
 708                         if (a == 8)
 709                                 wprintf("%s<br>\n", buf);
 710                         if (a == 9)
 711                                 wprintf(_("Current access level: %d (%s)\n"),
 712                                         atoi(buf), axdefs[atoi(buf)]);
 713                 } while (strcmp(buf, "000"));
 714         } else {
 715                 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 716         }
 717
 718         wprintf("<hr />");
 719         wprintf(_("Select access level for this user:"));
 720         wprintf("<br />\n");
 721         for (a = 0; a <= 6; ++a) {
 722                 wprintf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 723                 urlescputs(user);
 724                 wprintf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 725                         a, axdefs[a]);
 726         }
 727         wprintf("<br />\n");
 728
 729         wprintf("</div>\n");
 730         wprintf("</td></tr></table></div>\n");
 731         wDumpContent(1);
 732 }
 733
 734
 735
 736 /*
 737  * Display form for registration.
 738  *
 739  * (Set during_login to 1 if this registration is being performed during
 740  * new user login and will require chaining to the proper screen.)
 741  */
 742 void display_reg(int during_login)
 743 {
 744         StrBuf *Buf;
 745         message_summary *VCMsg;
 746         wc_mime_attachment *VCAtt;
 747         long vcard_msgnum;
 748
 749         Buf = NewStrBuf();
 750         if (goto_config_room(Buf) != 0) {
 751                 if (during_login) do_welcome();
 752                 else display_main_menu();
 753                 FreeStrBuf(&Buf);
 754                 return;
 755         }
 756
 757         FreeStrBuf(&Buf);
 758         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 759         if (vcard_msgnum < 0L) {
 760                 if (during_login) do_welcome();
 761                 else display_main_menu();
 762                 return;
 763         }
 764
 765         if (during_login) {
 766                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "do_welcome", USERCONFIGROOM);
 767         }
 768         else {
 769                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "display_main_menu", USERCONFIGROOM);
 770         }
 771
 772 }
 773
 774
 775
 776
 777 /*
 778  * display form for changing your password
 779  */
 780 void display_changepw(void)
 781 {
 782         WCTemplputParams SubTP;
 783         char buf[SIZ];
 784         StrBuf *Buf;
 785         output_headers(1, 1, 1, 0, 0, 0);
 786
 787         Buf = NewStrBufPlain(_("Change your password"), -1);
 788         memset(&SubTP, 0, sizeof(WCTemplputParams));
 789         SubTP.Filter.ContextType = CTX_STRBUF;
 790         SubTP.Context = Buf;
 791         DoTemplate(HKEY("beginbox"), NULL, &SubTP);
 792
 793         FreeStrBuf(&Buf);
 794
 795         if (!IsEmptyStr(WC->ImportantMessage)) {
 796                 wprintf("<span class=\"errormsg\">"
 797                         "%s</span><br />\n", WC->ImportantMessage);
 798                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 799         }
 800
 801         serv_puts("MESG changepw");
 802         serv_getln(buf, sizeof buf);
 803         if (buf[0] == '1') {
 804                 fmout("CENTER");
 805         }
 806
 807         wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 808         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 809         wprintf("<table class=\"altern\" ");
 810         wprintf("<tr class=\"even\"><td>");
 811         wprintf(_("Enter new password:"));
 812         wprintf("</td><td>");
 813         wprintf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 814         wprintf("<tr class=\"odd\"><td>");
 815         wprintf(_("Enter it again to confirm:"));
 816         wprintf("</td><td>");
 817         wprintf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 818         wprintf("</table>\n");
 819
 820         wprintf("<div class=\"buttons\">\n");
 821         wprintf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 822         wprintf("&nbsp;");
 823         wprintf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 824         wprintf("</div>\n");
 825         wprintf("</form>\n");
 826
 827         do_template("endbox", NULL);
 828         wDumpContent(1);
 829 }
 830
 831 /*
 832  * change password
 833  * if passwords match, propagate it to citserver.
 834  */
 835 void changepw(void)
 836 {
 837         char buf[SIZ];
 838         char newpass1[32], newpass2[32];
 839
 840         if (!havebstr("change_action")) {
 841                 safestrncpy(WC->ImportantMessage,
 842                         _("Cancelled.  Password was not changed."),
 843                         sizeof WC->ImportantMessage);
 844                 display_main_menu();
 845                 return;
 846         }
 847
 848         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 849         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 850
 851         if (strcasecmp(newpass1, newpass2)) {
 852                 safestrncpy(WC->ImportantMessage,
 853                         _("They don't match.  Password was not changed."),
 854                         sizeof WC->ImportantMessage);
 855                 display_changepw();
 856                 return;
 857         }
 858
 859         if (IsEmptyStr(newpass1)) {
 860                 safestrncpy(WC->ImportantMessage,
 861                         _("Blank passwords are not allowed."),
 862                         sizeof WC->ImportantMessage);
 863                 display_changepw();
 864                 return;
 865         }
 866
 867         serv_printf("SETP %s", newpass1);
 868         serv_getln(buf, sizeof buf);
 869         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 870         if (buf[0] == '2') {
 871                 if (WC->wc_password == NULL)
 872                         WC->wc_password = NewStrBufPlain(buf, -1);
 873                 else {
 874                         FlushStrBuf(WC->wc_password);
 875                         StrBufAppendBufPlain(WC->wc_password,  buf, -1, 0);
 876                 }
 877                 display_main_menu();
 878         }
 879         else {
 880                 display_changepw();
 881         }
 882 }
 883
 884 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 885 {
 886         wcsession *WCC = WC;
 887         return (WCC != NULL)? (WC->is_aide == 0) : 0;
 888 }
 889
 890 int ConditionalRoomAide(StrBuf *Target, WCTemplputParams *TP)
 891 {
 892         wcsession *WCC = WC;
 893         return (WCC != NULL)? (WCC->is_room_aide == 0) : 0;
 894 }
 895
 896 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP)
 897 {
 898         wcsession *WCC = WC;
 899         return (WCC != NULL)? (WCC->logged_in == 0) : 0;
 900 }
 901 int ConditionalRoomAcessDelete(StrBuf *Target, WCTemplputParams *TP)
 902 {
 903         wcsession *WCC = WC;
 904         return (WCC != NULL)? ( (WCC->is_room_aide) || (WCC->is_mailbox) || (WCC->room_flags2 & QR2_COLLABDEL) ) : 0;
 905 }
 906
 907
 908
 909 void _display_openid_login(void) {display_openid_login(NULL);}
 910 void _display_reg(void) {display_reg(0);}
 911
 912 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 913 {
 914         if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
 915         {
 916                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 917                         StrBufCutLeft(Line, 6);
 918                         StrBufDecodeBase64(Line);
 919                         hdr->HR.plainauth = Line;
 920                         hdr->HR.got_auth = AUTH_BASIC;
 921                 }
 922                 else
 923                         lprintf(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 924         }
 925 }
 926
 927 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 928 {
 929 /*
 930   todo: enable this if we can have other sessions than authenticated ones.
 931         if (hdr->DontNeedAuth)
 932                 return;
 933 */
 934         StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
 935         StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
 936         hdr->HR.SessionKey = hashlittle(SKEY(hdr->HR.plainauth), 89479832);
 937
 938 }
 939
 940 void GetAuthBasic(ParsedHttpHdrs *hdr)
 941 {
 942         const char *Pos = NULL;
 943         if (hdr->c_username == NULL)
 944                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 945         if (hdr->c_password == NULL)
 946                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 947         StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
 948         StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
 949 }
 950
 951 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
 952 {
 953         const char *pch;
 954 /*
 955   todo: enable this if we can have other sessions than authenticated ones.
 956         if (hdr->DontNeedAuth)
 957                 return;
 958 */
 959         pch = strstr(ChrPtr(Line), "webcit=");
 960         if (pch == NULL) {
 961                 return;
 962         }
 963
 964         hdr->HR.RawCookie = Line;
 965         StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
 966         StrBufDecodeHex(hdr->HR.RawCookie);
 967
 968         cookie_to_stuff(Line, &hdr->HR.desired_session,
 969                         hdr->c_username,
 970                         hdr->c_password,
 971                         hdr->c_roomname,
 972                         hdr->c_language
 973         );
 974         hdr->HR.got_auth = AUTH_COOKIE;
 975 }
 976
 977 void
 978 HttpNewModule_AUTH
 979 (ParsedHttpHdrs *httpreq)
 980 {
 981         httpreq->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 982         httpreq->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 983         httpreq->c_roomname = NewStrBuf();
 984         httpreq->c_language = NewStrBuf();
 985 }
 986 void
 987 HttpDetachModule_AUTH
 988 (ParsedHttpHdrs *httpreq)
 989 {
 990         FLUSHStrBuf(httpreq->c_username);
 991         FLUSHStrBuf(httpreq->c_password);
 992         FLUSHStrBuf(httpreq->c_roomname);
 993         FLUSHStrBuf(httpreq->c_language);
 994 }
 995
 996 void
 997 HttpDestroyModule_AUTH
 998 (ParsedHttpHdrs *httpreq)
 999 {
1000         FreeStrBuf(&httpreq->c_username);
1001         FreeStrBuf(&httpreq->c_password);
1002         FreeStrBuf(&httpreq->c_roomname);
1003         FreeStrBuf(&httpreq->c_language);
1004 }
1005
1006 void
1007 InitModule_AUTH
1008 (void)
1009 {
1010         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
1011         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
1012
1013         WebcitAddUrlHandler(HKEY(""), do_welcome, ANONYMOUS|COOKIEUNNEEDED); /* no url pattern at all? Show login. */
1014         WebcitAddUrlHandler(HKEY("do_welcome"), do_welcome, ANONYMOUS|COOKIEUNNEEDED);
1015         WebcitAddUrlHandler(HKEY("login"), do_login, ANONYMOUS|COOKIEUNNEEDED);
1016         WebcitAddUrlHandler(HKEY("display_openid_login"), _display_openid_login, ANONYMOUS);
1017         WebcitAddUrlHandler(HKEY("openid_login"), do_openid_login, ANONYMOUS);
1018         WebcitAddUrlHandler(HKEY("finalize_openid_login"), finalize_openid_login, ANONYMOUS);
1019         WebcitAddUrlHandler(HKEY("openid_manual_create"), openid_manual_create, ANONYMOUS);
1020         WebcitAddUrlHandler(HKEY("do_logout"), do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1021         WebcitAddUrlHandler(HKEY("validate"), validate, 0);
1022         WebcitAddUrlHandler(HKEY("display_reg"), _display_reg, 0);
1023         WebcitAddUrlHandler(HKEY("display_changepw"), display_changepw, 0);
1024         WebcitAddUrlHandler(HKEY("changepw"), changepw, 0);
1025         WebcitAddUrlHandler(HKEY("termquit"), do_logout, 0);
1026
1027         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1028         RegisterConditional(HKEY("COND:ROOMAIDE"), 2, ConditionalRoomAide, CTX_NONE);
1029         RegisterConditional(HKEY("COND:ACCESS:DELETE"), 2, ConditionalRoomAcessDelete, CTX_NONE);
1030         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1031
1032         return ;
1033 }
1034
1035
1036 void
1037 SessionDestroyModule_AUTH
1038 (wcsession *sess)
1039 {
1040         FreeStrBuf(&sess->wc_username);
1041         FreeStrBuf(&sess->wc_fullname);
1042         FreeStrBuf(&sess->wc_password);
1043         FreeStrBuf(&sess->wc_roomname);
1044         FreeStrBuf(&sess->httpauth_pass);
1045         FreeStrBuf(&sess->cs_inet_email);
1046 }