webcit/auth.c

   1 /*
   2  * WebcitAuth; Handles authentication of users to a Citadel server.
   3  *
   4  * Copyright (c) 1996-2010 by the citadel.org team
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "webcit.h"
  22 #include "webserver.h"
  23 #include <ctype.h>
  24
  25 extern uint32_t hashlittle( const void *key, size_t length, uint32_t initval);
  26
  27 void display_reg(int during_login);
  28
  29 /*
  30  * Access level definitions.  This is initialized from a function rather than a
  31  * static array so that the strings may be localized.
  32  */
  33 char *axdefs[7];
  34
  35 void initialize_axdefs(void) {
  36         axdefs[0] = _("Deleted");       /* an erased user */
  37         axdefs[1] = _("New User");      /* a new user */
  38         axdefs[2] = _("Problem User");  /* a trouble maker */
  39         axdefs[3] = _("Local User");    /* user with normal privileges */
  40         axdefs[4] = _("Network User");  /* a user that may access network resources */
  41         axdefs[5] = _("Preferred User");/* a moderator */
  42         axdefs[6] = _("Aide");          /* chief */
  43 }
  44
  45
  46
  47 /*
  48  * Display the login screen
  49  * mesg = the error message if last attempt failed.
  50  */
  51 void display_login(void)
  52 {
  53         begin_burst();
  54         output_headers(1, 0, 0, 0, 1, 0);
  55         do_template("login", NULL);
  56         end_burst();
  57 }
  58
  59
  60
  61
  62 /*
  63  * Display the openid-enabled login screen
  64  * mesg = the error message if last attempt failed.
  65  */
  66 void display_openid_login(char *mesg)
  67 {
  68   begin_burst();
  69   output_headers(1, 0, 0, 0, 1, 0);
  70   do_template("openid_login", NULL);
  71   end_burst();
  72 }
  73
  74
  75
  76
  77 /* Initialize the session
  78  *
  79  * This function needs to get called whenever the session changes from
  80  * not-logged-in to logged-in, either by an explicit login by the user or
  81  * by a timed-out session automatically re-establishing with a little help
  82  * from the browser cookie.  Either way, we need to load access controls and
  83  * preferences from the server.
  84  *
  85  * user                 the username
  86  * pass                 his password
  87  * serv_response        The parameters returned from a Citadel USER or NEWU command
  88  */
  89 void become_logged_in(const StrBuf *user, const StrBuf *pass, StrBuf *serv_response)
  90 {
  91         wcsession *WCC = WC;
  92         StrBuf *Buf;
  93         StrBuf *FloorDiv;
  94
  95         WCC->logged_in = 1;
  96
  97         if (WCC->wc_fullname == NULL)
  98                 WCC->wc_fullname = NewStrBufPlain(NULL, StrLength(serv_response));
  99         StrBufExtract_token(WCC->wc_fullname, serv_response, 0, '|');
 100         StrBufCutLeft(WCC->wc_fullname, 4 );
 101
 102         if (WCC->wc_username == NULL)
 103                 WCC->wc_username = NewStrBufDup(user);
 104         else {
 105                 FlushStrBuf(WCC->wc_username);
 106                 StrBufAppendBuf(WCC->wc_username, user, 0);
 107         }
 108
 109         if (WCC->wc_password == NULL)
 110                 WCC->wc_password = NewStrBufDup(pass);
 111         else {
 112                 FlushStrBuf(WCC->wc_password);
 113                 StrBufAppendBuf(WCC->wc_password, pass, 0);
 114         }
 115
 116         WCC->axlevel = StrBufExtract_int(serv_response, 1, '|');
 117         if (WCC->axlevel >= 6) { /* TODO: make this a define, else it might trick us later */
 118                 WCC->is_aide = 1;
 119         }
 120
 121         load_preferences();
 122
 123         Buf = NewStrBuf();
 124         serv_puts("CHEK");
 125         StrBuf_ServGetln(Buf);
 126         if (GetServerStatus(Buf, NULL) == 2) {
 127                 const char *pch;
 128
 129                 pch = ChrPtr(Buf) + 4;
 130                 /*WCC->new_mail  =*/ StrBufExtractNext_long(Buf, &pch, '|');
 131                 WCC->need_regi = StrBufExtractNext_long(Buf, &pch, '|');
 132                 WCC->need_vali = StrBufExtractNext_long(Buf, &pch, '|');
 133                 if (WCC->cs_inet_email == NULL)
 134                         WCC->cs_inet_email  = NewStrBuf();
 135                 StrBufExtract_NextToken(WCC->cs_inet_email, Buf, &pch, '|');
 136         }
 137         get_preference("floordiv_expanded", &FloorDiv);
 138         WCC->floordiv_expanded = FloorDiv;
 139         FreeStrBuf(&Buf);
 140 }
 141
 142
 143 /*
 144  * Perform authentication using a user name and password
 145  */
 146 void do_login(void)
 147 {
 148         wcsession *WCC = WC;
 149         StrBuf *Buf;
 150         long ret, rc;
 151
 152         if (havebstr("language")) {
 153                 set_selected_language(bstr("language"));
 154                 go_selected_language();
 155         }
 156
 157         if (havebstr("exit_action")) {
 158                 do_logout();
 159                 return;
 160         }
 161         Buf = NewStrBuf();
 162         if (havebstr("login_action")) {
 163                 serv_printf("USER %s", bstr("name"));
 164                 StrBuf_ServGetln(Buf);
 165                 rc = GetServerStatus(Buf, &ret);
 166                 StrBufCutLeft(Buf, 4);
 167                 switch (rc) {
 168                 case 3:
 169                         serv_printf("PASS %s", bstr("pass"));
 170                         StrBuf_ServGetln(Buf);
 171                         if (GetServerStatus(Buf, NULL) == 2) {
 172                                 become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 173                         } else {
 174                                 StrBufCutLeft(Buf, 4);
 175                                 AppendImportantMessage(SKEY(Buf));
 176                                 display_login();
 177                                 FreeStrBuf(&Buf);
 178                                 return;
 179                         }
 180                         break;
 181                 case 5:
 182                         if (ret == 541)
 183                         {
 184                                 AppendImportantMessage(SKEY(Buf));
 185                                 display_main_menu();
 186                                 return;
 187                         }
 188                 default:
 189                         AppendImportantMessage(SKEY(Buf));
 190                         display_login();
 191                         FreeStrBuf(&Buf);
 192                         return;
 193                 }
 194         }
 195         if (havebstr("newuser_action")) {
 196                 if (!havebstr("pass")) {
 197                         AppendImportantMessage(_("Blank passwords are not allowed."), -1);
 198                         display_login();
 199                         FreeStrBuf(&Buf);
 200                         return;
 201                 }
 202                 serv_printf("NEWU %s", bstr("name"));
 203                 StrBuf_ServGetln(Buf);
 204                 if (GetServerStatus(Buf, NULL) == 2) {
 205                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 206                         serv_printf("SETP %s", bstr("pass"));
 207                         StrBuf_ServGetln(Buf); /* Don't care? */
 208                 } else {
 209                         StrBufCutLeft(Buf, 4);
 210                         AppendImportantMessage(SKEY(Buf));
 211                         display_login();
 212                         FreeStrBuf(&Buf);
 213                         return;
 214                 }
 215         }
 216         if (WCC->logged_in) {
 217                 if (WCC->need_regi) {
 218                         display_reg(1);
 219                 } else if (WCC->need_vali) {
 220                         validate();
 221                 } else {
 222                         do_welcome();
 223                 }
 224         } else {
 225                 AppendImportantMessage(_("Your password was not accepted."), -1);
 226                 display_login();
 227         }
 228         FreeStrBuf(&Buf);
 229 }
 230
 231 /*
 232  * Try to create an account manually after an OpenID was verified
 233  */
 234 void openid_manual_create(void)
 235 {
 236         StrBuf *Buf;
 237
 238         if (havebstr("exit_action")) {
 239                 do_logout();
 240                 return;
 241         }
 242
 243         if (havebstr("newuser_action")) {
 244                 Buf = NewStrBuf();
 245                 serv_printf("OIDC %s", bstr("name"));
 246                 StrBuf_ServGetln(Buf);
 247                 if (GetServerStatus(Buf, NULL) == 2) {
 248                         StrBuf *gpass;
 249
 250                         gpass = NewStrBuf();
 251                         serv_puts("SETP GENERATE_RANDOM_PASSWORD");
 252                         StrBuf_ServGetln(gpass);
 253                         StrBufCutLeft(gpass, 4);
 254                         become_logged_in(sbstr("name"), gpass, Buf);
 255                         FreeStrBuf(&gpass);
 256                 }
 257                 FreeStrBuf(&Buf);
 258         }
 259
 260         if (WC->logged_in) {
 261                 if (WC->need_regi) {
 262                         display_reg(1);
 263                 } else if (WC->need_vali) {
 264                         validate();
 265                 } else {
 266                         do_welcome();
 267                 }
 268         } else {
 269                 const StrBuf *Buf;
 270
 271                 putbstr("__claimed_id", NewStrBufDup(sbstr("openid_url")));
 272                 Buf = sbstr("name");
 273                 if (StrLength(Buf) > 0)
 274                         putbstr("__username", NewStrBufDup(Buf));
 275                 begin_burst();
 276                 do_template("openid_manual_create", NULL);
 277                 end_burst();
 278         }
 279
 280 }
 281
 282
 283 /*
 284  * Perform authentication using OpenID
 285  * assemble the checkid_setup request and then redirect to the user's identity provider
 286  */
 287 void do_openid_login(void)
 288 {
 289         char buf[4096];
 290
 291         if (havebstr("language")) {
 292                 set_selected_language(bstr("language"));
 293                 go_selected_language();
 294         }
 295
 296         if (havebstr("exit_action")) {
 297                 do_logout();
 298                 return;
 299         }
 300         if (havebstr("login_action")) {
 301                 snprintf(buf, sizeof buf,
 302                         "OIDS %s|%s/finalize_openid_login|%s",
 303                         bstr("openid_url"),
 304                         ChrPtr(site_prefix),
 305                         ChrPtr(site_prefix)
 306                 );
 307
 308                 serv_puts(buf);
 309                 serv_getln(buf, sizeof buf);
 310                 if (buf[0] == '2') {
 311                         lprintf(CTDL_DEBUG, "OpenID server contacted; redirecting to %s\n", &buf[4]);
 312                         http_redirect(&buf[4]);
 313                         return;
 314                 }
 315                 else {
 316                         display_openid_login(&buf[4]);
 317                         return;
 318                 }
 319         }
 320
 321         /* If we get to this point then something failed. */
 322         display_openid_login(_("Your password was not accepted."));
 323 }
 324
 325 /*
 326  * Complete the authentication using OpenID
 327  * This function handles the positive or negative assertion from the user's Identity Provider
 328  */
 329 void finalize_openid_login(void)
 330 {
 331         StrBuf *Buf;
 332         wcsession *WCC = WC;
 333         int already_logged_in = (WCC->logged_in) ;
 334         int linecount = 0;
 335         StrBuf *result = NULL;
 336         StrBuf *username = NULL;
 337         StrBuf *password = NULL;
 338         StrBuf *logged_in_response = NULL;
 339         StrBuf *claimed_id = NULL;
 340
 341         if (havebstr("openid.mode")) {
 342                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 343                         Buf = NewStrBuf();
 344                         serv_puts("OIDF");
 345                         StrBuf_ServGetln(Buf);
 346                         if (GetServerStatus(Buf, NULL) == 8) {
 347                                 urlcontent *u;
 348                                 void *U;
 349                                 long HKLen;
 350                                 const char *HKey;
 351                                 HashPos *Cursor;
 352
 353                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 354                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 355                                         u = (urlcontent*) U;
 356                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 357                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 358                                         }
 359                                 }
 360
 361                                 serv_puts("000");
 362
 363                                 linecount = 0;
 364                                 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000"))
 365                                 {
 366                                         if (linecount == 0) result = NewStrBufDup(Buf);
 367                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 368                                                 if (linecount == 1) {
 369                                                         username = NewStrBufDup(Buf);
 370                                                 }
 371                                                 else if (linecount == 2) {
 372                                                         password = NewStrBufDup(Buf);
 373                                                 }
 374                                                 else if (linecount == 3) {
 375                                                         logged_in_response = NewStrBufDup(Buf);
 376                                                 }
 377                                         }
 378                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 379                                                 if (linecount == 1) {
 380                                                         claimed_id = NewStrBufDup(Buf);
 381                                                 }
 382                                                 if (linecount == 2) {
 383                                                         username = NewStrBufDup(Buf);
 384                                                 }
 385                                         }
 386                                         ++linecount;
 387                                 }
 388                         }
 389                         FreeStrBuf(&Buf);
 390                 }
 391         }
 392
 393         /* If we were already logged in, this was an attempt to associate an OpenID account */
 394         if (already_logged_in) {
 395                 display_openids();
 396                 FreeStrBuf(&result);
 397                 FreeStrBuf(&username);
 398                 FreeStrBuf(&password);
 399                 FreeStrBuf(&claimed_id);
 400                 FreeStrBuf(&logged_in_response);
 401                 return;
 402         }
 403
 404         /* If this operation logged us in, either by connecting with an existing account or by
 405          * auto-creating one using Simple Registration Extension, we're already on our way.
 406          */
 407         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 408                 become_logged_in(username, password, logged_in_response);
 409         }
 410
 411         /* The specified OpenID was verified but the desired user name was either not specified via SRI
 412          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 413          */
 414
 415         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 416                 putbstr("__claimed_id", claimed_id);
 417                 claimed_id = NULL;
 418                 if (StrLength(username) > 0) {
 419                         putbstr("__username", username);
 420                         username = NULL;
 421                 }
 422                 begin_burst();
 423                 do_template("openid_manual_create", NULL);
 424                 end_burst();
 425         }
 426
 427         /* Did we manage to log in?  If so, continue with the normal flow... */
 428         else if (WC->logged_in) {
 429                 if (WC->need_regi) {
 430                         display_reg(1);
 431                 } else {
 432                         do_welcome();
 433                 }
 434         } else {
 435                 display_openid_login(_("Your password was not accepted."));
 436         }
 437
 438         FreeStrBuf(&result);
 439         FreeStrBuf(&username);
 440         FreeStrBuf(&password);
 441         FreeStrBuf(&claimed_id);
 442         FreeStrBuf(&logged_in_response);
 443 }
 444
 445
 446 /*
 447  * Display a welcome screen to the user.
 448  *
 449  * If this is the first time login, and the web based setup is enabled,
 450  * lead the user through the setup routines
 451  */
 452 void do_welcome(void)
 453 {
 454         StrBuf *Buf;
 455 #ifdef XXX_NOT_FINISHED_YET_XXX
 456         FILE *fp;
 457         int i;
 458
 459         /**
 460          * See if we have to run the first-time setup wizard
 461          */
 462         if (WC->is_aide) {
 463                 if (!setup_wizard) {
 464                         int len;
 465                         sprintf(wizard_filename, "setupwiz.%s.%s",
 466                                 ctdlhost, ctdlport);
 467                         len = strlen(wizard_filename);
 468                         for (i=0; i<len; ++i) {
 469                                 if (    (wizard_filename[i]==' ')
 470                                         || (wizard_filename[i] == '/')
 471                                 ) {
 472                                         wizard_filename[i] = '_';
 473                                 }
 474                         }
 475
 476                         fp = fopen(wizard_filename, "r");
 477                         if (fp != NULL) {
 478                                 fgets(buf, sizeof buf, fp);
 479                                 buf[strlen(buf)-1] = 0;
 480                                 fclose(fp);
 481                                 if (atoi(buf) == serv_info.serv_rev_level) {
 482                                         setup_wizard = 1; /**< already run */
 483                                 }
 484                         }
 485                 }
 486
 487                 if (!setup_wizard) {
 488                         http_redirect("setup_wizard");
 489                 }
 490         }
 491 #endif
 492
 493         /*
 494          * Go to the user's preferred start page
 495          */
 496         if (!get_preference("startpage", &Buf)) {
 497                 Buf = NewStrBuf ();
 498                 StrBufPrintf(Buf, "dotskip?room=_BASEROOM_");
 499                 set_preference("startpage", Buf, 1);
 500         }
 501         if (ChrPtr(Buf)[0] == '/') {
 502                 StrBufCutLeft(Buf, 1);
 503         }
 504         if (StrLength(Buf) == 0) {
 505                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 506         }
 507         lprintf(9, "Redirecting to user's start page: %s\n", ChrPtr(Buf));
 508         http_redirect(ChrPtr(Buf));
 509 }
 510
 511
 512 /*
 513  * Disconnect from the Citadel server, and end this WebCit session
 514  */
 515 void end_webcit_session(void) {
 516
 517         serv_puts("QUIT");
 518         WC->killthis = 1;
 519         /* close() of citadel socket will be done by do_housekeeping() */
 520 }
 521
 522 /*
 523  * execute the logout
 524  */
 525 void do_logout(void)
 526 {
 527         wcsession *WCC = WC;
 528         char buf[SIZ];
 529
 530         FlushStrBuf(WCC->wc_username);
 531         FlushStrBuf(WCC->wc_password);
 532         FlushStrBuf(WCC->CurRoom.name);
 533         FlushStrBuf(WCC->wc_fullname);
 534
 535         /* FIXME: this is to suppress the iconbar displaying, because we aren't
 536            actually logged out yet */
 537         WCC->logged_in = 0;
 538
 539         /** Calling output_headers() this way causes the cookies to be un-set */
 540         output_headers(1, 1, 0, 1, 0, 0);
 541
 542         wc_printf("<div id=\"logout_screen\">");
 543         wc_printf("<div class=\"box\">");
 544         wc_printf("<div class=\"boxlabel\">");
 545         wc_printf(_("Log off"));
 546         wc_printf("</div><div class=\"boxcontent\">");
 547         serv_puts("MESG goodbye");
 548         serv_getln(buf, sizeof buf);
 549
 550         if (WCC->serv_sock >= 0) {
 551                 if (buf[0] == '1') {
 552                         fmout("'CENTER'");
 553                 } else {
 554                         wc_printf("Goodbye\n");
 555                 }
 556         }
 557         else {
 558                 wc_printf(_("This program was unable to connect or stay "
 559                         "connected to the Citadel server.  Please report "
 560                         "this problem to your system administrator.")
 561                 );
 562                 wc_printf("<a href=\"http://www.citadel.org/doku.php/"
 563                         "faq:mastering_your_os:net#netstat\">%s</a>",
 564                         _("Read More..."));
 565         }
 566
 567         wc_printf("<hr /><div class=\"buttons\"> "
 568                 "<span class=\"button_link\"><a href=\".\">");
 569         wc_printf(_("Log in again"));
 570         wc_printf("</a></span>");
 571
 572         /* The "close window" link is commented out because some browsers don't
 573          * allow it to work.
 574          *
 575         wc_printf("&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
 576                 "<a href=\"javascript:window.close();\">");
 577         wc_printf(_("Close window"));
 578         wc_printf("</a></span>");
 579          */
 580
 581         wc_printf("</div></div></div>\n");
 582         wDumpContent(2);
 583         end_webcit_session();
 584 }
 585
 586
 587 /*
 588  * validate new users
 589  */
 590 void validate(void)
 591 {
 592         char cmd[SIZ];
 593         char user[SIZ];
 594         char buf[SIZ];
 595         int a;
 596
 597         output_headers(1, 1, 2, 0, 0, 0);
 598         wc_printf("<div id=\"banner\">\n");
 599         wc_printf("<h1>");
 600         wc_printf(_("Validate new users"));
 601         wc_printf("</h1>");
 602         wc_printf("</div>\n");
 603
 604         wc_printf("<div id=\"content\" class=\"service\">\n");
 605
 606         /* If the user just submitted a validation, process it... */
 607         safestrncpy(buf, bstr("user"), sizeof buf);
 608         if (!IsEmptyStr(buf)) {
 609                 if (havebstr("axlevel")) {
 610                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 611                         serv_getln(buf, sizeof buf);
 612                         if (buf[0] != '2') {
 613                                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 614                         }
 615                 }
 616         }
 617
 618         /* Now see if any more users require validation. */
 619         serv_puts("GNUR");
 620         serv_getln(buf, sizeof buf);
 621         if (buf[0] == '2') {
 622                 wc_printf("<b>");
 623                 wc_printf(_("No users require validation at this time."));
 624                 wc_printf("</b><br>\n");
 625                 wDumpContent(1);
 626                 return;
 627         }
 628         if (buf[0] != '3') {
 629                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 630                 wDumpContent(1);
 631                 return;
 632         }
 633
 634         wc_printf("<div class=\"fix_scrollbar_bug\">"
 635                 "<table class=\"auth_validate\"><tr><td>\n");
 636         wc_printf("<div id=\"validate\">");
 637
 638         safestrncpy(user, &buf[4], sizeof user);
 639         serv_printf("GREG %s", user);
 640         serv_getln(cmd, sizeof cmd);
 641         if (cmd[0] == '1') {
 642                 a = 0;
 643                 do {
 644                         serv_getln(buf, sizeof buf);
 645                         ++a;
 646                         if (a == 1)
 647                                 wc_printf("#%s<br><H1>%s</H1>",
 648                                         buf, &cmd[4]);
 649                         if (a == 2) {
 650                                 char *pch;
 651                                 int haveChar = 0;
 652                                 int haveNum = 0;
 653                                 int haveOther = 0;
 654                                 int count = 0;
 655                                 pch = buf;
 656                                 while (!IsEmptyStr(pch))
 657                                 {
 658                                         if (isdigit(*pch))
 659                                                 haveNum = 1;
 660                                         else if (isalpha(*pch))
 661                                                 haveChar = 1;
 662                                         else
 663                                                 haveOther = 1;
 664                                         pch ++;
 665                                 }
 666                                 count = pch - buf;
 667                                 if (count > 7)
 668                                         count = 0;
 669                                 switch (count){
 670                                 case 0:
 671                                         pch = _("very weak");
 672                                         break;
 673                                 case 1:
 674                                         pch = _("weak");
 675                                         break;
 676                                 case 2:
 677                                         pch = _("ok");
 678                                         break;
 679                                 case 3:
 680                                 default:
 681                                         pch = _("strong");
 682                                 }
 683
 684                                 wc_printf("PW: %s<br>\n", pch);
 685                         }
 686                         if (a == 3)
 687                                 wc_printf("%s<br>\n", buf);
 688                         if (a == 4)
 689                                 wc_printf("%s<br>\n", buf);
 690                         if (a == 5)
 691                                 wc_printf("%s, ", buf);
 692                         if (a == 6)
 693                                 wc_printf("%s ", buf);
 694                         if (a == 7)
 695                                 wc_printf("%s<br>\n", buf);
 696                         if (a == 8)
 697                                 wc_printf("%s<br>\n", buf);
 698                         if (a == 9)
 699                                 wc_printf(_("Current access level: %d (%s)\n"),
 700                                         atoi(buf), axdefs[atoi(buf)]);
 701                 } while (strcmp(buf, "000"));
 702         } else {
 703                 wc_printf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 704         }
 705
 706         wc_printf("<hr />");
 707         wc_printf(_("Select access level for this user:"));
 708         wc_printf("<br />\n");
 709         for (a = 0; a <= 6; ++a) {
 710                 wc_printf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 711                 urlescputs(user);
 712                 wc_printf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 713                         a, axdefs[a]);
 714         }
 715         wc_printf("<br />\n");
 716
 717         wc_printf("</div>\n");
 718         wc_printf("</td></tr></table></div>\n");
 719         wDumpContent(1);
 720 }
 721
 722
 723
 724 /*
 725  * Display form for registration.
 726  *
 727  * (Set during_login to 1 if this registration is being performed during
 728  * new user login and will require chaining to the proper screen.)
 729  */
 730 void display_reg(int during_login)
 731 {
 732         folder Room;
 733         StrBuf *Buf;
 734         message_summary *VCMsg = NULL;
 735         wc_mime_attachment *VCAtt = NULL;
 736         long vcard_msgnum;
 737
 738         Buf = NewStrBuf();
 739         memset(&Room, 0, sizeof(folder));
 740         if (goto_config_room(Buf, &Room) != 0) {
 741                 lprintf(9, "display_reg() exiting because goto_config_room() failed\n");
 742                 if (during_login) {
 743                         do_welcome();
 744                 }
 745                 else {
 746                         display_main_menu();
 747                 }
 748                 FreeStrBuf(&Buf);
 749                 FlushFolder(&Room);
 750                 return;
 751         }
 752         FlushFolder(&Room);
 753
 754         FreeStrBuf(&Buf);
 755         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 756         if (vcard_msgnum < 0L) {
 757                 lprintf(9, "display_reg() exiting because locate_user_vcard_in_this_room() failed\n");
 758                 if (during_login) {
 759                         do_welcome();
 760                 }
 761                 else {
 762                         display_main_menu();
 763                 }
 764                 return;
 765         }
 766
 767         if (during_login) {
 768                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "do_welcome", USERCONFIGROOM);
 769         }
 770         else {
 771                 StrBuf *ReturnTo;
 772                 ReturnTo = NewStrBufPlain(HKEY("display_main_menu?gotofirst="));
 773                 StrBufAppendBuf(ReturnTo, WC->CurRoom.name, 0);
 774                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, ChrPtr(ReturnTo), USERCONFIGROOM);
 775                 FreeStrBuf(&ReturnTo);
 776         }
 777
 778         /* FIXME - don't we have to free VCMsg and VCAtt ?? */
 779 }
 780
 781
 782
 783
 784 /*
 785  * display form for changing your password
 786  */
 787 void display_changepw(void)
 788 {
 789         WCTemplputParams SubTP;
 790         char buf[SIZ];
 791         StrBuf *Buf;
 792         output_headers(1, 1, 1, 0, 0, 0);
 793
 794         Buf = NewStrBufPlain(_("Change your password"), -1);
 795         memset(&SubTP, 0, sizeof(WCTemplputParams));
 796         SubTP.Filter.ContextType = CTX_STRBUF;
 797         SubTP.Context = Buf;
 798         DoTemplate(HKEY("beginbox"), NULL, &SubTP);
 799
 800         FreeStrBuf(&Buf);
 801
 802         if (!IsEmptyStr(WC->ImportantMessage)) {
 803                 wc_printf("<span class=\"errormsg\">"
 804                         "%s</span><br />\n", WC->ImportantMessage);
 805                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 806         }
 807
 808         serv_puts("MESG changepw");
 809         serv_getln(buf, sizeof buf);
 810         if (buf[0] == '1') {
 811                 fmout("CENTER");
 812         }
 813
 814         wc_printf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 815         wc_printf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 816         wc_printf("<table class=\"altern\" ");
 817         wc_printf("<tr class=\"even\"><td>");
 818         wc_printf(_("Enter new password:"));
 819         wc_printf("</td><td>");
 820         wc_printf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 821         wc_printf("<tr class=\"odd\"><td>");
 822         wc_printf(_("Enter it again to confirm:"));
 823         wc_printf("</td><td>");
 824         wc_printf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 825         wc_printf("</table>\n");
 826
 827         wc_printf("<div class=\"buttons\">\n");
 828         wc_printf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 829         wc_printf("&nbsp;");
 830         wc_printf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 831         wc_printf("</div>\n");
 832         wc_printf("</form>\n");
 833
 834         do_template("endbox", NULL);
 835         wDumpContent(1);
 836 }
 837
 838 /*
 839  * change password
 840  * if passwords match, propagate it to citserver.
 841  */
 842 void changepw(void)
 843 {
 844         char buf[SIZ];
 845         char newpass1[32], newpass2[32];
 846
 847         if (!havebstr("change_action")) {
 848                 safestrncpy(WC->ImportantMessage,
 849                         _("Cancelled.  Password was not changed."),
 850                         sizeof WC->ImportantMessage);
 851                 display_main_menu();
 852                 return;
 853         }
 854
 855         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 856         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 857
 858         if (strcasecmp(newpass1, newpass2)) {
 859                 safestrncpy(WC->ImportantMessage,
 860                         _("They don't match.  Password was not changed."),
 861                         sizeof WC->ImportantMessage);
 862                 display_changepw();
 863                 return;
 864         }
 865
 866         if (IsEmptyStr(newpass1)) {
 867                 safestrncpy(WC->ImportantMessage,
 868                         _("Blank passwords are not allowed."),
 869                         sizeof WC->ImportantMessage);
 870                 display_changepw();
 871                 return;
 872         }
 873
 874         serv_printf("SETP %s", newpass1);
 875         serv_getln(buf, sizeof buf);
 876         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 877         if (buf[0] == '2') {
 878                 if (WC->wc_password == NULL)
 879                         WC->wc_password = NewStrBufPlain(buf, -1);
 880                 else {
 881                         FlushStrBuf(WC->wc_password);
 882                         StrBufAppendBufPlain(WC->wc_password,  buf, -1, 0);
 883                 }
 884                 display_main_menu();
 885         }
 886         else {
 887                 display_changepw();
 888         }
 889 }
 890
 891 int ConditionalHaveAccessCreateRoom(StrBuf *Target, WCTemplputParams *TP)
 892 {
 893         StrBuf *Buf;
 894
 895         Buf = NewStrBuf();
 896         serv_puts("CRE8 0");
 897         StrBuf_ServGetln(Buf);
 898
 899         if (GetServerStatus(Buf, NULL) == 2) {
 900                 StrBufCutLeft(Buf, 4);
 901                 AppendImportantMessage(SKEY(Buf));
 902                 FreeStrBuf(&Buf);
 903                 return 0;
 904         }
 905         FreeStrBuf(&Buf);
 906         return 1;
 907 }
 908
 909 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 910 {
 911         wcsession *WCC = WC;
 912         return (WCC != NULL)? (WC->is_aide == 0) : 0;
 913 }
 914
 915 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP)
 916 {
 917         wcsession *WCC = WC;
 918         return (WCC != NULL)? (WCC->logged_in == 0) : 0;
 919 }
 920
 921
 922 void _display_openid_login(void) {
 923         display_openid_login(NULL);
 924 }
 925
 926
 927 void _display_reg(void) {
 928         display_reg(0);
 929 }
 930
 931
 932 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 933 {
 934         if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
 935         {
 936                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 937                         StrBufCutLeft(Line, 6);
 938                         StrBufDecodeBase64(Line);
 939                         hdr->HR.plainauth = Line;
 940                         hdr->HR.got_auth = AUTH_BASIC;
 941                 }
 942                 else
 943                         lprintf(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 944         }
 945 }
 946
 947 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 948 {
 949 /*
 950   todo: enable this if we can have other sessions than authenticated ones.
 951         if (hdr->DontNeedAuth)
 952                 return;
 953 */
 954         StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
 955         StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
 956         hdr->HR.SessionKey = hashlittle(SKEY(hdr->HR.plainauth), 89479832);
 957 /*
 958         lprintf(1, "CheckAuthBasic: calculated sessionkey %ld\n",
 959                 hdr->HR.SessionKey);
 960 */
 961 }
 962
 963 void GetAuthBasic(ParsedHttpHdrs *hdr)
 964 {
 965         const char *Pos = NULL;
 966         if (hdr->c_username == NULL)
 967                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 968         if (hdr->c_password == NULL)
 969                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 970         StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
 971         StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
 972 }
 973
 974 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
 975 {
 976         const char *pch;
 977 /*
 978   todo: enable this if we can have other sessions than authenticated ones.
 979         if (hdr->DontNeedAuth)
 980                 return;
 981 */
 982         pch = strstr(ChrPtr(Line), "webcit=");
 983         if (pch == NULL) {
 984                 return;
 985         }
 986
 987         hdr->HR.RawCookie = Line;
 988         StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
 989         StrBufDecodeHex(hdr->HR.RawCookie);
 990
 991         cookie_to_stuff(Line, &hdr->HR.desired_session,
 992                         hdr->c_username,
 993                         hdr->c_password,
 994                         hdr->c_roomname,
 995                         hdr->c_language
 996         );
 997         hdr->HR.got_auth = AUTH_COOKIE;
 998 }
 999
1000 void
1001 HttpNewModule_AUTH
1002 (ParsedHttpHdrs *httpreq)
1003 {
1004         httpreq->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
1005         httpreq->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
1006         httpreq->c_roomname = NewStrBuf();
1007         httpreq->c_language = NewStrBuf();
1008 }
1009 void
1010 HttpDetachModule_AUTH
1011 (ParsedHttpHdrs *httpreq)
1012 {
1013         FLUSHStrBuf(httpreq->c_username);
1014         FLUSHStrBuf(httpreq->c_password);
1015         FLUSHStrBuf(httpreq->c_roomname);
1016         FLUSHStrBuf(httpreq->c_language);
1017 }
1018
1019 void
1020 HttpDestroyModule_AUTH
1021 (ParsedHttpHdrs *httpreq)
1022 {
1023         FreeStrBuf(&httpreq->c_username);
1024         FreeStrBuf(&httpreq->c_password);
1025         FreeStrBuf(&httpreq->c_roomname);
1026         FreeStrBuf(&httpreq->c_language);
1027 }
1028
1029 void
1030 InitModule_AUTH
1031 (void)
1032 {
1033         initialize_axdefs();
1034         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
1035         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
1036
1037         WebcitAddUrlHandler(HKEY(""), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED); /* no url pattern at all? Show login. */
1038         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
1039         WebcitAddUrlHandler(HKEY("login"), "", 0, do_login, ANONYMOUS|COOKIEUNNEEDED);
1040         WebcitAddUrlHandler(HKEY("display_openid_login"), "", 0, _display_openid_login, ANONYMOUS);
1041         WebcitAddUrlHandler(HKEY("openid_login"), "", 0, do_openid_login, ANONYMOUS);
1042         WebcitAddUrlHandler(HKEY("finalize_openid_login"), "", 0, finalize_openid_login, ANONYMOUS);
1043         WebcitAddUrlHandler(HKEY("openid_manual_create"), "", 0, openid_manual_create, ANONYMOUS);
1044         WebcitAddUrlHandler(HKEY("do_logout"), "", 0, do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1045         WebcitAddUrlHandler(HKEY("validate"), "", 0, validate, 0);
1046         WebcitAddUrlHandler(HKEY("display_reg"), "", 0, _display_reg, 0);
1047         WebcitAddUrlHandler(HKEY("display_changepw"), "", 0, display_changepw, 0);
1048         WebcitAddUrlHandler(HKEY("changepw"), "", 0, changepw, 0);
1049         WebcitAddUrlHandler(HKEY("termquit"), "", 0, do_logout, 0);
1050
1051         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1052         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1053         RegisterConditional(HKEY("COND:MAY_CREATE_ROOM"), 2,  ConditionalHaveAccessCreateRoom, CTX_NONE);
1054         return ;
1055 }
1056
1057
1058 void
1059 SessionDestroyModule_AUTH
1060 (wcsession *sess)
1061 {
1062         FreeStrBuf(&sess->wc_username);
1063         FreeStrBuf(&sess->wc_fullname);
1064         FreeStrBuf(&sess->wc_password);
1065         FreeStrBuf(&sess->httpauth_pass);
1066         FreeStrBuf(&sess->cs_inet_email);
1067 }