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 int ReEstablish_Session(void)
  32 {
  33         StrBuf *Buf = NewStrBuf();
  34         wcsession *WCC = WC;
  35
  36         serv_printf("USER %s", ChrPtr(WCC->Hdr->c_username));
  37         StrBuf_ServGetln(Buf);
  38         if (GetServerStatus(Buf, NULL) == 3) {
  39                 serv_printf("PASS %s", ChrPtr(WCC->Hdr->c_password));
  40                 StrBuf_ServGetln(Buf);
  41                 if (GetServerStatus(Buf, NULL) == 2) {
  42                         become_logged_in(WCC->Hdr->c_username,
  43                                          WCC->Hdr->c_password, Buf);
  44                         get_preference("default_header_charset", &WCC->DefaultCharset);
  45                 }
  46         }
  47         /*
  48          * If we don't have a current room, but a cookie specifying the
  49          * current room is supplied, make an effort to go there.
  50          */
  51         if ((StrLength(WCC->wc_roomname) == 0) && (StrLength(WCC->Hdr->c_roomname) > 0)) {
  52                 serv_printf("GOTO %s",
  53                             ChrPtr(WCC->Hdr->c_roomname));
  54                 StrBuf_ServGetln(Buf);
  55                 if (GetServerStatus(Buf, NULL) == 2) {
  56                         if (WCC->wc_roomname == NULL) {
  57                                 WCC->wc_roomname = NewStrBufDup(WCC->Hdr->c_roomname);
  58                         }
  59                         else {
  60                                 FlushStrBuf(WCC->wc_roomname);
  61                                 StrBufAppendBuf(WCC->wc_roomname, WCC->Hdr->c_roomname, 0);
  62                         }
  63                 }
  64         }
  65         FreeStrBuf(&Buf);
  66         return 0;
  67 }
  68
  69
  70 /*
  71  * Display the login screen
  72  * mesg = the error message if last attempt failed.
  73  */
  74 void display_login(void)
  75 {
  76         begin_burst();
  77         output_headers(1, 0, 0, 0, 1, 0);
  78         do_template("login", NULL);
  79         end_burst();
  80 }
  81
  82
  83
  84
  85 /*
  86  * Display the openid-enabled login screen
  87  * mesg = the error message if last attempt failed.
  88  */
  89 void display_openid_login(char *mesg)
  90 {
  91   begin_burst();
  92   output_headers(1, 0, 0, 0, 1, 0);
  93   do_template("openid_login", NULL);
  94   end_burst();
  95 }
  96
  97
  98 void display_openid_name_request(const StrBuf *claimed_id, const StrBuf *username)
  99 {
 100         StrBuf *Buf = NULL;
 101
 102         output_headers(1, 1, 2, 0, 0, 0);
 103         wprintf("<div id=\"login_screen\">\n");
 104
 105         Buf = NewStrBufPlain(NULL, StrLength(claimed_id));
 106         StrEscAppend(Buf, claimed_id, NULL, 0, 0);
 107         svprintf(HKEY("VERIFIED"), WCS_STRING, _("Your OpenID <tt>%s</tt> was successfully verified."),
 108                  ChrPtr(Buf));
 109         SVPutBuf("CLAIMED_ID", Buf, 0);
 110
 111
 112         if (StrLength(username) > 0) {
 113                         Buf = NewStrBufPlain(NULL, StrLength(username));
 114                         StrEscAppend(Buf, claimed_id, NULL, 0, 0);
 115                         svprintf(HKEY("REASON"), WCS_STRING,
 116                                  _("However, the user name '%s' conflicts with an existing user."),
 117                                  ChrPtr(Buf));
 118                         FreeStrBuf(&Buf);
 119         }
 120         else {
 121                 svput("REASON", WCS_STRING, "");
 122         }
 123
 124         svput("ACTION_REQUESTED", WCS_STRING, _("Please specify the user name you would like to use."));
 125
 126         svput("USERNAME_BOX", WCS_STRING, _("User name:"));
 127         svput("NEWUSER_BUTTON", WCS_STRING, _("New User"));
 128         svput("EXIT_BUTTON", WCS_STRING, _("Exit"));
 129
 130         svprintf(HKEY("BOXTITLE"), WCS_STRING, _("%s - powered by <a href=\"http://www.citadel.org\">Citadel</a>"),
 131                  ChrPtr(WC->serv_info->serv_humannode));
 132
 133         do_template("openid_manual_create", NULL);
 134         wDumpContent(2);
 135 }
 136
 137
 138
 139 /* Initialize the session
 140  *
 141  * This function needs to get called whenever the session changes from
 142  * not-logged-in to logged-in, either by an explicit login by the user or
 143  * by a timed-out session automatically re-establishing with a little help
 144  * from the browser cookie.  Either way, we need to load access controls and
 145  * preferences from the server.
 146  *
 147  * user                 the username
 148  * pass                 his password
 149  * serv_response        The parameters returned from a Citadel USER or NEWU command
 150  */
 151 void become_logged_in(const StrBuf *user, const StrBuf *pass, StrBuf *serv_response)
 152 {
 153         wcsession *WCC = WC;
 154         StrBuf *Buf;
 155         StrBuf *FloorDiv;
 156         StrBuf *Language = NULL;
 157
 158         WCC->logged_in = 1;
 159
 160         if (WCC->wc_fullname == NULL)
 161                 WCC->wc_fullname = NewStrBufPlain(NULL, StrLength(serv_response));
 162         StrBufExtract_token(WCC->wc_fullname, serv_response, 0, '|');
 163         StrBufCutLeft(WCC->wc_fullname, 4 );
 164
 165         if (WCC->wc_username == NULL)
 166                 WCC->wc_username = NewStrBufDup(user);
 167         else {
 168                 FlushStrBuf(WCC->wc_username);
 169                 StrBufAppendBuf(WCC->wc_username, user, 0);
 170         }
 171
 172         if (WCC->wc_password == NULL)
 173                 WCC->wc_password = NewStrBufDup(pass);
 174         else {
 175                 FlushStrBuf(WCC->wc_password);
 176                 StrBufAppendBuf(WCC->wc_password, pass, 0);
 177         }
 178
 179         WCC->axlevel = StrBufExtract_int(serv_response, 1, '|');
 180         if (WCC->axlevel >= 6) { /* TODO: make this a define, else it might trick us later */
 181                 WCC->is_aide = 1;
 182         }
 183
 184         load_preferences();
 185
 186         Buf = NewStrBuf();
 187         serv_puts("CHEK");
 188         StrBuf_ServGetln(Buf);
 189         if (GetServerStatus(Buf, NULL) == 2) {
 190                 const char *pch;
 191
 192                 pch = ChrPtr(Buf) + 4;
 193                 WCC->new_mail  = StrBufExtractNext_long(Buf, &pch, '|');
 194                 WCC->need_regi = StrBufExtractNext_long(Buf, &pch, '|');
 195                 WCC->need_vali = StrBufExtractNext_long(Buf, &pch, '|');
 196                 if (WCC->cs_inet_email == NULL)
 197                         WCC->cs_inet_email  = NewStrBuf();
 198                 StrBufExtract_NextToken(WCC->cs_inet_email, Buf, &pch, '|');
 199         }
 200         if (havebstr("language"))
 201                 set_preference("language", NewStrBufDup(SBSTR("language")), 1);
 202         else {
 203                 get_preference("language", &Language);
 204                 if (Language != NULL) {
 205                         set_selected_language(ChrPtr(Language));
 206                         go_selected_language();         /* set locale */
 207                 }
 208         }
 209         get_preference("floordiv_expanded", &FloorDiv);
 210         WCC->floordiv_expanded = FloorDiv;
 211         FreeStrBuf(&Buf);
 212 }
 213
 214
 215 /*
 216  * Perform authentication using a user name and password
 217  */
 218 void do_login(void)
 219 {
 220         wcsession *WCC = WC;
 221         StrBuf *Buf;
 222
 223         if (havebstr("language")) {
 224                 set_selected_language(bstr("language"));
 225                 go_selected_language();
 226         }
 227
 228         if (havebstr("exit_action")) {
 229                 do_logout();
 230                 return;
 231         }
 232         Buf = NewStrBuf();
 233         if (havebstr("login_action")) {
 234                 serv_printf("USER %s", bstr("name"));
 235                 StrBuf_ServGetln(Buf);
 236                 if (GetServerStatus(Buf, NULL) == 3) {
 237                         serv_printf("PASS %s", bstr("pass"));
 238                         StrBuf_ServGetln(Buf);
 239                         if (GetServerStatus(Buf, NULL) == 2) {
 240                                 become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 241                         } else {
 242                                 snprintf(WCC->ImportantMessage,
 243                                          sizeof (WCC->ImportantMessage),
 244                                          "%s",
 245                                          &(ChrPtr(Buf))[4]);
 246                                 display_login();
 247                                 FreeStrBuf(&Buf);
 248                                 return;
 249                         }
 250                 } else {
 251                         snprintf(WCC->ImportantMessage,
 252                                  sizeof (WCC->ImportantMessage),
 253                                  "%s",
 254                                  &(ChrPtr(Buf))[4]);
 255                         display_login();
 256                         FreeStrBuf(&Buf);
 257                         return;
 258                 }
 259         }
 260         if (havebstr("newuser_action")) {
 261                 if (!havebstr("pass")) {
 262                         snprintf(WCC->ImportantMessage,
 263                                  sizeof (WCC->ImportantMessage),
 264                                  "%s",
 265                                  _("Blank passwords are not allowed."));
 266                         display_login();
 267                         FreeStrBuf(&Buf);
 268                         return;
 269                 }
 270                 serv_printf("NEWU %s", bstr("name"));
 271                 StrBuf_ServGetln(Buf);
 272                 if (GetServerStatus(Buf, NULL) == 2) {
 273                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 274                         serv_printf("SETP %s", bstr("pass"));
 275                         StrBuf_ServGetln(Buf); /* Don't care? */
 276                 } else {
 277                         snprintf(WCC->ImportantMessage,
 278                                  sizeof (WCC->ImportantMessage),
 279                                  "%s",
 280                                  &(ChrPtr(Buf))[4]);
 281                         display_login();
 282                         FreeStrBuf(&Buf);
 283                         return;
 284                 }
 285         }
 286         if (WCC->logged_in) {
 287                 if (WCC->need_regi) {
 288                         display_reg(1);
 289                 } else if (WCC->need_vali) {
 290                         validate();
 291                 } else {
 292                         do_welcome();
 293                 }
 294         } else {
 295                 snprintf(WCC->ImportantMessage,
 296                          sizeof (WCC->ImportantMessage),
 297                          "%s",
 298                          _("Your password was not accepted."));
 299                 display_login();
 300         }
 301         FreeStrBuf(&Buf);
 302 }
 303
 304 /*
 305  * Try to create an account manually after an OpenID was verified
 306  */
 307 void openid_manual_create(void)
 308 {
 309         StrBuf *Buf;
 310
 311         if (havebstr("exit_action")) {
 312                 do_logout();
 313                 return;
 314         }
 315
 316         if (havebstr("newuser_action")) {
 317                 Buf = NewStrBuf();
 318                 serv_printf("OIDC %s", bstr("name"));
 319                 StrBuf_ServGetln(Buf);
 320                 if (GetServerStatus(Buf, NULL) == 2) {
 321                         StrBuf *gpass;
 322
 323                         gpass = NewStrBuf();
 324                         serv_puts("SETP GENERATE_RANDOM_PASSWORD");
 325                         StrBuf_ServGetln(gpass);
 326                         StrBufCutLeft(gpass, 4);
 327                         become_logged_in(sbstr("name"), gpass, Buf);
 328                         FreeStrBuf(&gpass);
 329                 }
 330                 FreeStrBuf(&Buf);
 331         }
 332
 333         if (WC->logged_in) {
 334                 if (WC->need_regi) {
 335                         display_reg(1);
 336                 } else if (WC->need_vali) {
 337                         validate();
 338                 } else {
 339                         do_welcome();
 340                 }
 341         } else {
 342                 display_openid_name_request(sbstr("openid_url"), sbstr("name"));
 343         }
 344
 345 }
 346
 347
 348 /*
 349  * Perform authentication using OpenID
 350  * assemble the checkid_setup request and then redirect to the user's identity provider
 351  */
 352 void do_openid_login(void)
 353 {
 354         wcsession *WCC = WC;
 355         char buf[4096];
 356
 357         if (havebstr("language")) {
 358                 set_selected_language(bstr("language"));
 359                 go_selected_language();
 360         }
 361
 362         if (havebstr("exit_action")) {
 363                 do_logout();
 364                 return;
 365         }
 366         if (havebstr("login_action")) {
 367                 snprintf(buf, sizeof buf,
 368                         "OIDS %s|%s://%s/finalize_openid_login|%s://%s",
 369                         bstr("openid_url"),
 370                          (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->http_host),
 371                          (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->http_host)
 372                 );
 373
 374                 serv_puts(buf);
 375                 serv_getln(buf, sizeof buf);
 376                 if (buf[0] == '2') {
 377                         lprintf(CTDL_DEBUG, "OpenID server contacted; redirecting to %s\n", &buf[4]);
 378                         http_redirect(&buf[4]);
 379                         return;
 380                 }
 381                 else {
 382                         display_openid_login(&buf[4]);
 383                         return;
 384                 }
 385         }
 386
 387         /* If we get to this point then something failed. */
 388         display_openid_login(_("Your password was not accepted."));
 389 }
 390
 391 /*
 392  * Complete the authentication using OpenID
 393  * This function handles the positive or negative assertion from the user's Identity Provider
 394  */
 395 void finalize_openid_login(void)
 396 {
 397         StrBuf *Buf;
 398         wcsession *WCC = WC;
 399         int already_logged_in = (WCC->logged_in) ;
 400         int linecount = 0;
 401         StrBuf *result = NULL;
 402         StrBuf *username = NULL;
 403         StrBuf *password = NULL;
 404         StrBuf *logged_in_response = NULL;
 405         StrBuf *claimed_id = NULL;
 406
 407         if (havebstr("openid.mode")) {
 408                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 409                         Buf = NewStrBuf();
 410                         serv_puts("OIDF");
 411                         StrBuf_ServGetln(Buf);
 412                         if (GetServerStatus(Buf, NULL) == 8) {
 413                                 urlcontent *u;
 414                                 void *U;
 415                                 long HKLen;
 416                                 const char *HKey;
 417                                 HashPos *Cursor;
 418
 419                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 420                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 421                                         u = (urlcontent*) U;
 422                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 423                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 424                                         }
 425                                 }
 426
 427                                 serv_puts("000");
 428
 429                                 linecount = 0;
 430                                 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000"))
 431                                 {
 432                                         if (linecount == 0) result = NewStrBufDup(Buf);
 433                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 434                                                 if (linecount == 1) {
 435                                                         username = NewStrBufDup(Buf);
 436                                                 }
 437                                                 else if (linecount == 2) {
 438                                                         password = NewStrBufDup(Buf);
 439                                                 }
 440                                                 else if (linecount == 3) {
 441                                                         logged_in_response = NewStrBufDup(Buf);
 442                                                 }
 443                                         }
 444                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 445                                                 if (linecount == 1) {
 446                                                         claimed_id = NewStrBufDup(Buf);
 447                                                 }
 448                                                 if (linecount == 2) {
 449                                                         username = NewStrBufDup(Buf);
 450                                                 }
 451                                         }
 452                                         ++linecount;
 453                                 }
 454                         }
 455                         FreeStrBuf(&Buf);
 456                 }
 457         }
 458
 459         /* If we were already logged in, this was an attempt to associate an OpenID account */
 460         if (already_logged_in) {
 461                 display_openids();
 462                 FreeStrBuf(&result);
 463                 FreeStrBuf(&username);
 464                 FreeStrBuf(&password);
 465                 FreeStrBuf(&claimed_id);
 466                 FreeStrBuf(&logged_in_response);
 467                 return;
 468         }
 469
 470         /* If this operation logged us in, either by connecting with an existing account or by
 471          * auto-creating one using Simple Registration Extension, we're already on our way.
 472          */
 473         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 474                 become_logged_in(username, password, logged_in_response);
 475         }
 476
 477         /* The specified OpenID was verified but the desired user name was either not specified via SRI
 478          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 479          */
 480
 481         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 482                 display_openid_name_request(claimed_id, username);
 483         }
 484
 485         /* Did we manage to log in?  If so, continue with the normal flow... */
 486         if (WC->logged_in) {
 487                 if (WC->need_regi) {
 488                         display_reg(1);
 489                 } else {
 490                         do_welcome();
 491                 }
 492         } else {
 493                 display_openid_login(_("Your password was not accepted."));
 494         }
 495
 496         FreeStrBuf(&result);
 497         FreeStrBuf(&username);
 498         FreeStrBuf(&password);
 499         FreeStrBuf(&claimed_id);
 500         FreeStrBuf(&logged_in_response);
 501 }
 502
 503
 504 /*
 505  * Display a welcome screen to the user.
 506  *
 507  * If this is the first time login, and the web based setup is enabled,
 508  * lead the user through the setup routines
 509  */
 510 void do_welcome(void)
 511 {
 512         StrBuf *Buf;
 513 #ifdef XXX_NOT_FINISHED_YET_XXX
 514         FILE *fp;
 515         int i;
 516
 517         /**
 518          * See if we have to run the first-time setup wizard
 519          */
 520         if (WC->is_aide) {
 521                 if (!setup_wizard) {
 522                         int len;
 523                         sprintf(wizard_filename, "setupwiz.%s.%s",
 524                                 ctdlhost, ctdlport);
 525                         len = strlen(wizard_filename);
 526                         for (i=0; i<len; ++i) {
 527                                 if (    (wizard_filename[i]==' ')
 528                                         || (wizard_filename[i] == '/')
 529                                 ) {
 530                                         wizard_filename[i] = '_';
 531                                 }
 532                         }
 533
 534                         fp = fopen(wizard_filename, "r");
 535                         if (fp != NULL) {
 536                                 fgets(buf, sizeof buf, fp);
 537                                 buf[strlen(buf)-1] = 0;
 538                                 fclose(fp);
 539                                 if (atoi(buf) == serv_info.serv_rev_level) {
 540                                         setup_wizard = 1; /**< already run */
 541                                 }
 542                         }
 543                 }
 544
 545                 if (!setup_wizard) {
 546                         http_redirect("setup_wizard");
 547                 }
 548         }
 549 #endif
 550
 551         /*
 552          * Go to the user's preferred start page
 553          */
 554         if (!get_preference("startpage", &Buf)) {
 555                 Buf = NewStrBuf ();
 556                 StrBufPrintf(Buf, "dotskip&room=_BASEROOM_");
 557                 set_preference("startpage", Buf, 1);
 558         }
 559         if (ChrPtr(Buf)[0] == '/') {
 560                 StrBufCutLeft(Buf, 1);
 561         }
 562         if (StrLength(Buf) == 0)
 563                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 564         http_redirect(ChrPtr(Buf));
 565 }
 566
 567
 568 /*
 569  * Disconnect from the Citadel server, and end this WebCit session
 570  */
 571 void end_webcit_session(void) {
 572
 573         serv_puts("QUIT");
 574         WC->killthis = 1;
 575         /* close() of citadel socket will be done by do_housekeeping() */
 576 }
 577
 578 /*
 579  * execute the logout
 580  */
 581 void do_logout(void)
 582 {
 583         wcsession *WCC = WC;
 584         char buf[SIZ];
 585
 586         FlushStrBuf(WCC->wc_username);
 587         FlushStrBuf(WCC->wc_password);
 588         FlushStrBuf(WCC->wc_roomname);
 589         FlushStrBuf(WCC->wc_fullname);
 590
 591         /* FIXME: this is to suppress the iconbar displaying, because we aren't
 592            actually logged out yet */
 593         WCC->logged_in = 0;
 594
 595         /** Calling output_headers() this way causes the cookies to be un-set */
 596         output_headers(1, 1, 0, 1, 0, 0);
 597
 598         wprintf("<div id=\"logout_screen\">");
 599         wprintf("<div class=\"box\">");
 600         wprintf("<div class=\"boxlabel\">");
 601         wprintf(_("Log off"));
 602         wprintf("</div><div class=\"boxcontent\">");
 603         serv_puts("MESG goodbye");
 604         serv_getln(buf, sizeof buf);
 605
 606         if (WCC->serv_sock >= 0) {
 607                 if (buf[0] == '1') {
 608                         fmout("CENTER");
 609                 } else {
 610                         wprintf("Goodbye\n");
 611                 }
 612         }
 613         else {
 614                 wprintf(_("This program was unable to connect or stay "
 615                         "connected to the Citadel server.  Please report "
 616                         "this problem to your system administrator.")
 617                 );
 618                 wprintf("<a href=\"http://www.citadel.org/doku.php/"
 619                         "faq:mastering_your_os:net#netstat\">%s</a>",
 620                         _("Read More..."));
 621         }
 622
 623         wprintf("<hr /><div class=\"buttons\"> "
 624                 "<span class=\"button_link\"><a href=\".\">");
 625         wprintf(_("Log in again"));
 626         wprintf("</a></span>");
 627
 628         /* The "close window" link is commented out because some browsers don't
 629          * allow it to work.
 630          *
 631         wprintf("&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
 632                 "<a href=\"javascript:window.close();\">");
 633         wprintf(_("Close window"));
 634         wprintf("</a></span>");
 635          */
 636
 637         wprintf("</div></div></div></div>\n");
 638         wDumpContent(2);
 639         end_webcit_session();
 640 }
 641
 642
 643 /*
 644  * validate new users
 645  */
 646 void validate(void)
 647 {
 648         char cmd[SIZ];
 649         char user[SIZ];
 650         char buf[SIZ];
 651         int a;
 652
 653         output_headers(1, 1, 2, 0, 0, 0);
 654         wprintf("<div id=\"banner\">\n");
 655         wprintf("<h1>");
 656         wprintf(_("Validate new users"));
 657         wprintf("</h1>");
 658         wprintf("</div>\n");
 659
 660         wprintf("<div id=\"content\" class=\"service\">\n");
 661
 662         /* If the user just submitted a validation, process it... */
 663         safestrncpy(buf, bstr("user"), sizeof buf);
 664         if (!IsEmptyStr(buf)) {
 665                 if (havebstr("axlevel")) {
 666                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 667                         serv_getln(buf, sizeof buf);
 668                         if (buf[0] != '2') {
 669                                 wprintf("<b>%s</b><br>\n", &buf[4]);
 670                         }
 671                 }
 672         }
 673
 674         /* Now see if any more users require validation. */
 675         serv_puts("GNUR");
 676         serv_getln(buf, sizeof buf);
 677         if (buf[0] == '2') {
 678                 wprintf("<b>");
 679                 wprintf(_("No users require validation at this time."));
 680                 wprintf("</b><br>\n");
 681                 wDumpContent(1);
 682                 return;
 683         }
 684         if (buf[0] != '3') {
 685                 wprintf("<b>%s</b><br>\n", &buf[4]);
 686                 wDumpContent(1);
 687                 return;
 688         }
 689
 690         wprintf("<div class=\"fix_scrollbar_bug\">"
 691                 "<table class=\"auth_validate\"><tr><td>\n");
 692         wprintf("<div id=\"validate\">");
 693
 694         safestrncpy(user, &buf[4], sizeof user);
 695         serv_printf("GREG %s", user);
 696         serv_getln(cmd, sizeof cmd);
 697         if (cmd[0] == '1') {
 698                 a = 0;
 699                 do {
 700                         serv_getln(buf, sizeof buf);
 701                         ++a;
 702                         if (a == 1)
 703                                 wprintf("#%s<br><H1>%s</H1>",
 704                                         buf, &cmd[4]);
 705                         if (a == 2) {
 706                                 char *pch;
 707                                 int haveChar = 0;
 708                                 int haveNum = 0;
 709                                 int haveOther = 0;
 710                                 int count = 0;
 711                                 pch = buf;
 712                                 while (!IsEmptyStr(pch))
 713                                 {
 714                                         if (isdigit(*pch))
 715                                                 haveNum = 1;
 716                                         else if (isalpha(*pch))
 717                                                 haveChar = 1;
 718                                         else
 719                                                 haveOther = 1;
 720                                         pch ++;
 721                                 }
 722                                 count = pch - buf;
 723                                 if (count > 7)
 724                                         count = 0;
 725                                 switch (count){
 726                                 case 0:
 727                                         pch = _("very weak");
 728                                         break;
 729                                 case 1:
 730                                         pch = _("weak");
 731                                         break;
 732                                 case 2:
 733                                         pch = _("ok");
 734                                         break;
 735                                 case 3:
 736                                 default:
 737                                         pch = _("strong");
 738                                 }
 739
 740                                 wprintf("PW: %s<br>\n", pch);
 741                         }
 742                         if (a == 3)
 743                                 wprintf("%s<br>\n", buf);
 744                         if (a == 4)
 745                                 wprintf("%s<br>\n", buf);
 746                         if (a == 5)
 747                                 wprintf("%s, ", buf);
 748                         if (a == 6)
 749                                 wprintf("%s ", buf);
 750                         if (a == 7)
 751                                 wprintf("%s<br>\n", buf);
 752                         if (a == 8)
 753                                 wprintf("%s<br>\n", buf);
 754                         if (a == 9)
 755                                 wprintf(_("Current access level: %d (%s)\n"),
 756                                         atoi(buf), axdefs[atoi(buf)]);
 757                 } while (strcmp(buf, "000"));
 758         } else {
 759                 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 760         }
 761
 762         wprintf("<hr />");
 763         wprintf(_("Select access level for this user:"));
 764         wprintf("<br />\n");
 765         for (a = 0; a <= 6; ++a) {
 766                 wprintf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 767                 urlescputs(user);
 768                 wprintf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 769                         a, axdefs[a]);
 770         }
 771         wprintf("<br />\n");
 772
 773         wprintf("</div>\n");
 774         wprintf("</td></tr></table></div>\n");
 775         wDumpContent(1);
 776 }
 777
 778
 779
 780 /*
 781  * Display form for registration.
 782  *
 783  * (Set during_login to 1 if this registration is being performed during
 784  * new user login and will require chaining to the proper screen.)
 785  */
 786 void display_reg(int during_login)
 787 {
 788         StrBuf *Buf;
 789         message_summary *VCMsg;
 790         wc_mime_attachment *VCAtt;
 791         long vcard_msgnum;
 792
 793         Buf = NewStrBuf();
 794         if (goto_config_room(Buf) != 0) {
 795                 if (during_login) do_welcome();
 796                 else display_main_menu();
 797                 FreeStrBuf(&Buf);
 798                 return;
 799         }
 800
 801         FreeStrBuf(&Buf);
 802         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 803         if (vcard_msgnum < 0L) {
 804                 if (during_login) do_welcome();
 805                 else display_main_menu();
 806                 return;
 807         }
 808
 809         if (during_login) {
 810                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "do_welcome", USERCONFIGROOM);
 811         }
 812         else {
 813                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "display_main_menu", USERCONFIGROOM);
 814         }
 815
 816 }
 817
 818
 819
 820
 821 /*
 822  * display form for changing your password
 823  */
 824 void display_changepw(void)
 825 {
 826         WCTemplputParams SubTP;
 827         char buf[SIZ];
 828         StrBuf *Buf;
 829         output_headers(1, 1, 1, 0, 0, 0);
 830
 831         Buf = NewStrBufPlain(_("Change your password"), -1);
 832         memset(&SubTP, 0, sizeof(WCTemplputParams));
 833         SubTP.Filter.ContextType = CTX_STRBUF;
 834         SubTP.Context = Buf;
 835         DoTemplate(HKEY("beginbox"), NULL, &SubTP);
 836
 837         FreeStrBuf(&Buf);
 838
 839         if (!IsEmptyStr(WC->ImportantMessage)) {
 840                 wprintf("<span class=\"errormsg\">"
 841                         "%s</span><br />\n", WC->ImportantMessage);
 842                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 843         }
 844
 845         serv_puts("MESG changepw");
 846         serv_getln(buf, sizeof buf);
 847         if (buf[0] == '1') {
 848                 fmout("CENTER");
 849         }
 850
 851         wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 852         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 853         wprintf("<table class=\"altern\" ");
 854         wprintf("<tr class=\"even\"><td>");
 855         wprintf(_("Enter new password:"));
 856         wprintf("</td><td>");
 857         wprintf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 858         wprintf("<tr class=\"odd\"><td>");
 859         wprintf(_("Enter it again to confirm:"));
 860         wprintf("</td><td>");
 861         wprintf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 862         wprintf("</table>\n");
 863
 864         wprintf("<div class=\"buttons\">\n");
 865         wprintf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 866         wprintf("&nbsp;");
 867         wprintf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 868         wprintf("</div>\n");
 869         wprintf("</form>\n");
 870
 871         do_template("endbox", NULL);
 872         wDumpContent(1);
 873 }
 874
 875 /*
 876  * change password
 877  * if passwords match, propagate it to citserver.
 878  */
 879 void changepw(void)
 880 {
 881         char buf[SIZ];
 882         char newpass1[32], newpass2[32];
 883
 884         if (!havebstr("change_action")) {
 885                 safestrncpy(WC->ImportantMessage,
 886                         _("Cancelled.  Password was not changed."),
 887                         sizeof WC->ImportantMessage);
 888                 display_main_menu();
 889                 return;
 890         }
 891
 892         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 893         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 894
 895         if (strcasecmp(newpass1, newpass2)) {
 896                 safestrncpy(WC->ImportantMessage,
 897                         _("They don't match.  Password was not changed."),
 898                         sizeof WC->ImportantMessage);
 899                 display_changepw();
 900                 return;
 901         }
 902
 903         if (IsEmptyStr(newpass1)) {
 904                 safestrncpy(WC->ImportantMessage,
 905                         _("Blank passwords are not allowed."),
 906                         sizeof WC->ImportantMessage);
 907                 display_changepw();
 908                 return;
 909         }
 910
 911         serv_printf("SETP %s", newpass1);
 912         serv_getln(buf, sizeof buf);
 913         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 914         if (buf[0] == '2') {
 915                 if (WC->wc_password == NULL)
 916                         WC->wc_password = NewStrBufPlain(buf, -1);
 917                 else {
 918                         FlushStrBuf(WC->wc_password);
 919                         StrBufAppendBufPlain(WC->wc_password,  buf, -1, 0);
 920                 }
 921                 display_main_menu();
 922         }
 923         else {
 924                 display_changepw();
 925         }
 926 }
 927
 928 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 929 {
 930         return (WC->is_aide == 0);
 931 }
 932
 933 int ConditionalRoomAide(StrBuf *Target, WCTemplputParams *TP)
 934 {
 935         return (WC->is_room_aide == 0);
 936 }
 937
 938 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP) {
 939   return (WC->logged_in == 0);
 940 }
 941 int ConditionalRoomAcessDelete(StrBuf *Target, WCTemplputParams *TP)
 942 {
 943         wcsession *WCC = WC;
 944         return ( (WCC->is_room_aide) || (WCC->is_mailbox) || (WCC->room_flags2 & QR2_COLLABDEL) );
 945 }
 946
 947
 948
 949 void _display_openid_login(void) {display_openid_login(NULL);}
 950 void _display_reg(void) {display_reg(0);}
 951
 952 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 953 {
 954         if (hdr->got_auth == NO_AUTH) /* don't override cookie auth... */
 955         {
 956                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 957                         StrBufCutLeft(Line, 6);
 958                         StrBufDecodeBase64(Line);
 959                         hdr->plainauth = Line;
 960                         hdr->got_auth = AUTH_BASIC;
 961                 }
 962                 else
 963                         lprintf(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 964         }
 965 }
 966
 967 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 968 {
 969 /*
 970   todo: enable this if we can have other sessions than authenticated ones.
 971         if (hdr->DontNeedAuth)
 972                 return;
 973 */
 974         StrBufAppendBufPlain(hdr->plainauth, HKEY(":"), 0);
 975         StrBufAppendBuf(hdr->plainauth, hdr->user_agent, 0);
 976         hdr->SessionKey = hashlittle(SKEY(hdr->plainauth), 89479832);
 977
 978 }
 979
 980 void GetAuthBasic(ParsedHttpHdrs *hdr)
 981 {
 982         const char *Pos = NULL;
 983         if (hdr->c_username == NULL)
 984                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 985         if (hdr->c_password == NULL)
 986                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 987         StrBufExtract_NextToken(hdr->c_username, hdr->plainauth, &Pos, ':');
 988         StrBufExtract_NextToken(hdr->c_password, hdr->plainauth, &Pos, ':');
 989 }
 990
 991 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
 992 {
 993         const char *pch;
 994 /*
 995   todo: enable this if we can have other sessions than authenticated ones.
 996         if (hdr->DontNeedAuth)
 997                 return;
 998 */
 999         hdr->RawCookie = Line;
1000
1001         pch = strstr(ChrPtr(hdr->RawCookie), "webcit=");
1002
1003         if (pch != NULL)
1004                 StrBufCutLeft(hdr->RawCookie, (pch - ChrPtr(hdr->RawCookie)) + 7);
1005
1006         StrBufDecodeHex(hdr->RawCookie);
1007
1008         if (hdr->c_username == NULL)
1009                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
1010         if (hdr->c_password == NULL)
1011                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
1012         if (hdr->c_roomname == NULL)
1013                 hdr->c_roomname = NewStrBuf();
1014         cookie_to_stuff(Line, &hdr->desired_session,
1015                         hdr->c_username,
1016                         hdr->c_password,
1017                         hdr->c_roomname);
1018         hdr->got_auth = AUTH_COOKIE;
1019 }
1020
1021
1022
1023 void
1024 InitModule_AUTH
1025 (void)
1026 {
1027         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
1028         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
1029
1030         WebcitAddUrlHandler(HKEY(""), do_welcome, ANONYMOUS|COOKIEUNNEEDED); /* no url pattern at all? Show login. */
1031         WebcitAddUrlHandler(HKEY("do_welcome"), do_welcome, ANONYMOUS|COOKIEUNNEEDED);
1032         WebcitAddUrlHandler(HKEY("login"), do_login, ANONYMOUS|COOKIEUNNEEDED);
1033         WebcitAddUrlHandler(HKEY("display_openid_login"), _display_openid_login, ANONYMOUS);
1034         WebcitAddUrlHandler(HKEY("openid_login"), do_openid_login, ANONYMOUS);
1035         WebcitAddUrlHandler(HKEY("finalize_openid_login"), finalize_openid_login, ANONYMOUS);
1036         WebcitAddUrlHandler(HKEY("openid_manual_create"), openid_manual_create, ANONYMOUS);
1037         WebcitAddUrlHandler(HKEY("do_logout"), do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1038         WebcitAddUrlHandler(HKEY("validate"), validate, 0);
1039         WebcitAddUrlHandler(HKEY("display_reg"), _display_reg, 0);
1040         WebcitAddUrlHandler(HKEY("display_changepw"), display_changepw, 0);
1041         WebcitAddUrlHandler(HKEY("changepw"), changepw, 0);
1042         WebcitAddUrlHandler(HKEY("termquit"), do_logout, 0);
1043
1044         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1045         RegisterConditional(HKEY("COND:ROOMAIDE"), 2, ConditionalRoomAide, CTX_NONE);
1046         RegisterConditional(HKEY("COND:ACCESS:DELETE"), 2, ConditionalRoomAcessDelete, CTX_NONE);
1047         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1048
1049         return ;
1050 }
1051
1052
1053 void
1054 SessionDestroyModule_AUTH
1055 (wcsession *sess)
1056 {
1057         FreeStrBuf(&sess->wc_username);
1058         FreeStrBuf(&sess->wc_fullname);
1059         FreeStrBuf(&sess->wc_password);
1060         FreeStrBuf(&sess->wc_roomname);
1061         FreeStrBuf(&sess->httpauth_pass);
1062         FreeStrBuf(&sess->cs_inet_email);
1063 }