webcit/auth.c

   1 /*
   2  * These functions handle authentication of users to a Citadel server.
   3  *
   4  * Copyright (c) 1996-2010 by the citadel.org team
   5  *
   6  * This program is open source software.  You can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 3 of the
   9  * License, or (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
  37         /* an erased user */
  38         axdefs[0] = _("Deleted");
  39
  40         /* a new user */
  41         axdefs[1] = _("New User");
  42
  43         /* a trouble maker */
  44         axdefs[2] = _("Problem User");
  45
  46         /* user with normal privileges */
  47         axdefs[3] = _("Local User");
  48
  49         /* a user that may access network resources */
  50         axdefs[4] = _("Network User");
  51
  52         /* a moderator */
  53         axdefs[5] = _("Preferred User");
  54
  55         /* chief */
  56         axdefs[6] = _("Aide");
  57 }
  58
  59
  60
  61 /*
  62  * Display the login screen
  63  * mesg = the error message if last attempt failed.
  64  */
  65 void display_login(void)
  66 {
  67         begin_burst();
  68         output_headers(1, 0, 0, 0, 1, 0);
  69         do_template("login", NULL);
  70         end_burst();
  71 }
  72
  73
  74
  75
  76 /*
  77  * Display the openid-enabled login screen
  78  * mesg = the error message if last attempt failed.
  79  */
  80 void display_openid_login(char *mesg)
  81 {
  82   begin_burst();
  83   output_headers(1, 0, 0, 0, 1, 0);
  84   do_template("openid_login", NULL);
  85   end_burst();
  86 }
  87
  88
  89
  90
  91 /* Initialize the session
  92  *
  93  * This function needs to get called whenever the session changes from
  94  * not-logged-in to logged-in, either by an explicit login by the user or
  95  * by a timed-out session automatically re-establishing with a little help
  96  * from the browser cookie.  Either way, we need to load access controls and
  97  * preferences from the server.
  98  *
  99  * user                 the username
 100  * pass                 his password
 101  * serv_response        The parameters returned from a Citadel USER or NEWU command
 102  */
 103 void become_logged_in(const StrBuf *user, const StrBuf *pass, StrBuf *serv_response)
 104 {
 105         wcsession *WCC = WC;
 106         StrBuf *Buf;
 107         StrBuf *FloorDiv;
 108
 109         WCC->logged_in = 1;
 110
 111         if (WCC->wc_fullname == NULL)
 112                 WCC->wc_fullname = NewStrBufPlain(NULL, StrLength(serv_response));
 113         StrBufExtract_token(WCC->wc_fullname, serv_response, 0, '|');
 114         StrBufCutLeft(WCC->wc_fullname, 4 );
 115
 116         if (WCC->wc_username == NULL)
 117                 WCC->wc_username = NewStrBufDup(user);
 118         else {
 119                 FlushStrBuf(WCC->wc_username);
 120                 StrBufAppendBuf(WCC->wc_username, user, 0);
 121         }
 122
 123         if (WCC->wc_password == NULL)
 124                 WCC->wc_password = NewStrBufDup(pass);
 125         else {
 126                 FlushStrBuf(WCC->wc_password);
 127                 StrBufAppendBuf(WCC->wc_password, pass, 0);
 128         }
 129
 130         WCC->axlevel = StrBufExtract_int(serv_response, 1, '|');
 131         if (WCC->axlevel >= 6) { /* TODO: make this a define, else it might trick us later */
 132                 WCC->is_aide = 1;
 133         }
 134
 135         load_preferences();
 136
 137         Buf = NewStrBuf();
 138         serv_puts("CHEK");
 139         StrBuf_ServGetln(Buf);
 140         if (GetServerStatus(Buf, NULL) == 2) {
 141                 const char *pch;
 142
 143                 pch = ChrPtr(Buf) + 4;
 144                 /*WCC->new_mail  =*/ StrBufExtractNext_long(Buf, &pch, '|');
 145                 WCC->need_regi = StrBufExtractNext_long(Buf, &pch, '|');
 146                 WCC->need_vali = StrBufExtractNext_long(Buf, &pch, '|');
 147                 if (WCC->cs_inet_email == NULL)
 148                         WCC->cs_inet_email  = NewStrBuf();
 149                 StrBufExtract_NextToken(WCC->cs_inet_email, Buf, &pch, '|');
 150         }
 151         get_preference("floordiv_expanded", &FloorDiv);
 152         WCC->floordiv_expanded = FloorDiv;
 153         FreeStrBuf(&Buf);
 154 }
 155
 156
 157 /*
 158  * Perform authentication using a user name and password
 159  */
 160 void do_login(void)
 161 {
 162         wcsession *WCC = WC;
 163         StrBuf *Buf;
 164         long ret, rc;
 165
 166         if (havebstr("language")) {
 167                 set_selected_language(bstr("language"));
 168                 go_selected_language();
 169         }
 170
 171         if (havebstr("exit_action")) {
 172                 do_logout();
 173                 return;
 174         }
 175         Buf = NewStrBuf();
 176         if (havebstr("login_action")) {
 177                 serv_printf("USER %s", bstr("name"));
 178                 StrBuf_ServGetln(Buf);
 179                 rc = GetServerStatus(Buf, &ret);
 180                 StrBufCutLeft(Buf, 4);
 181                 switch (rc) {
 182                 case 3:
 183                         serv_printf("PASS %s", bstr("pass"));
 184                         StrBuf_ServGetln(Buf);
 185                         if (GetServerStatus(Buf, NULL) == 2) {
 186                                 become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 187                         } else {
 188                                 StrBufCutLeft(Buf, 4);
 189                                 AppendImportantMessage(SKEY(Buf));
 190                                 display_login();
 191                                 FreeStrBuf(&Buf);
 192                                 return;
 193                         }
 194                         break;
 195                 case 5:
 196                         if (ret == 541)
 197                         {
 198                                 AppendImportantMessage(SKEY(Buf));
 199                                 display_main_menu();
 200                                 return;
 201                         }
 202                 default:
 203                         AppendImportantMessage(SKEY(Buf));
 204                         display_login();
 205                         FreeStrBuf(&Buf);
 206                         return;
 207                 }
 208         }
 209         if (havebstr("newuser_action")) {
 210                 if (!havebstr("pass")) {
 211                         AppendImportantMessage(_("Blank passwords are not allowed."), -1);
 212                         display_login();
 213                         FreeStrBuf(&Buf);
 214                         return;
 215                 }
 216                 serv_printf("NEWU %s", bstr("name"));
 217                 StrBuf_ServGetln(Buf);
 218                 if (GetServerStatus(Buf, NULL) == 2) {
 219                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 220                         serv_printf("SETP %s", bstr("pass"));
 221                         StrBuf_ServGetln(Buf); /* Don't care? */
 222                 } else {
 223                         StrBufCutLeft(Buf, 4);
 224                         AppendImportantMessage(SKEY(Buf));
 225                         display_login();
 226                         FreeStrBuf(&Buf);
 227                         return;
 228                 }
 229         }
 230         if (WCC->logged_in) {
 231                 if (WCC->need_regi) {
 232                         display_reg(1);
 233                 } else if (WCC->need_vali) {
 234                         validate();
 235                 } else {
 236                         do_welcome();
 237                 }
 238         } else {
 239                 AppendImportantMessage(_("Your password was not accepted."), -1);
 240                 display_login();
 241         }
 242         FreeStrBuf(&Buf);
 243 }
 244
 245
 246
 247 /*
 248  * modal/ajax version of 'login' (username and password)
 249  */
 250 void ajax_login_username_password(void) {
 251         StrBuf *Buf;
 252
 253         serv_printf("USER %s", bstr("name"));
 254         StrBuf_ServGetln(Buf);
 255         if (GetServerStatus(Buf, NULL) == 3) {
 256                 serv_printf("PASS %s", bstr("pass"));
 257                 StrBuf_ServGetln(Buf);
 258                 if (GetServerStatus(Buf, NULL) == 2) {
 259                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 260                         wc_printf("FIXME success");
 261                 }
 262         }
 263
 264         wc_printf("FIXME %s", ChrPtr(Buf));
 265
 266         FreeStrBuf(&Buf);
 267 }
 268
 269
 270
 271 /*
 272  * Try to create an account manually after an OpenID was verified
 273  */
 274 void openid_manual_create(void)
 275 {
 276         StrBuf *Buf;
 277
 278         if (havebstr("exit_action")) {
 279                 do_logout();
 280                 return;
 281         }
 282
 283         if (havebstr("newuser_action")) {
 284                 Buf = NewStrBuf();
 285                 serv_printf("OIDC %s", bstr("name"));
 286                 StrBuf_ServGetln(Buf);
 287                 if (GetServerStatus(Buf, NULL) == 2) {
 288                         StrBuf *gpass;
 289
 290                         gpass = NewStrBuf();
 291                         serv_puts("SETP GENERATE_RANDOM_PASSWORD");
 292                         StrBuf_ServGetln(gpass);
 293                         StrBufCutLeft(gpass, 4);
 294                         become_logged_in(sbstr("name"), gpass, Buf);
 295                         FreeStrBuf(&gpass);
 296                 }
 297                 FreeStrBuf(&Buf);
 298         }
 299
 300         if (WC->logged_in) {
 301                 if (WC->need_regi) {
 302                         display_reg(1);
 303                 } else if (WC->need_vali) {
 304                         validate();
 305                 } else {
 306                         do_welcome();
 307                 }
 308         } else {
 309                 const StrBuf *Buf;
 310
 311                 putbstr("__claimed_id", NewStrBufDup(sbstr("openid_url")));
 312                 Buf = sbstr("name");
 313                 if (StrLength(Buf) > 0)
 314                         putbstr("__username", NewStrBufDup(Buf));
 315                 begin_burst();
 316                 do_template("openid_manual_create", NULL);
 317                 end_burst();
 318         }
 319
 320 }
 321
 322
 323 /*
 324  * Perform authentication using OpenID
 325  * assemble the checkid_setup request and then redirect to the user's identity provider
 326  */
 327 void do_openid_login(void)
 328 {
 329         char buf[4096];
 330
 331         if (havebstr("language")) {
 332                 set_selected_language(bstr("language"));
 333                 go_selected_language();
 334         }
 335
 336         if (havebstr("exit_action")) {
 337                 do_logout();
 338                 return;
 339         }
 340         if (havebstr("login_action")) {
 341                 snprintf(buf, sizeof buf,
 342                         "OIDS %s|%s/finalize_openid_login|%s",
 343                         bstr("openid_url"),
 344                         ChrPtr(site_prefix),
 345                         ChrPtr(site_prefix)
 346                 );
 347
 348                 serv_puts(buf);
 349                 serv_getln(buf, sizeof buf);
 350                 if (buf[0] == '2') {
 351                         syslog(LOG_DEBUG, "OpenID server contacted; redirecting to %s\n", &buf[4]);
 352                         http_redirect(&buf[4]);
 353                         return;
 354                 }
 355                 else {
 356                         display_openid_login(&buf[4]);
 357                         return;
 358                 }
 359         }
 360
 361         /* If we get to this point then something failed. */
 362         display_openid_login(_("Your password was not accepted."));
 363 }
 364
 365 /*
 366  * Complete the authentication using OpenID
 367  * This function handles the positive or negative assertion from the user's Identity Provider
 368  */
 369 void finalize_openid_login(void)
 370 {
 371         StrBuf *Buf;
 372         wcsession *WCC = WC;
 373         int already_logged_in = (WCC->logged_in) ;
 374         int linecount = 0;
 375         StrBuf *result = NULL;
 376         StrBuf *username = NULL;
 377         StrBuf *password = NULL;
 378         StrBuf *logged_in_response = NULL;
 379         StrBuf *claimed_id = NULL;
 380
 381         if (havebstr("openid.mode")) {
 382                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 383                         Buf = NewStrBuf();
 384                         serv_puts("OIDF");
 385                         StrBuf_ServGetln(Buf);
 386                         if (GetServerStatus(Buf, NULL) == 8) {
 387                                 urlcontent *u;
 388                                 void *U;
 389                                 long HKLen;
 390                                 const char *HKey;
 391                                 HashPos *Cursor;
 392
 393                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 394                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 395                                         u = (urlcontent*) U;
 396                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 397                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 398                                         }
 399                                 }
 400
 401                                 serv_puts("000");
 402
 403                                 linecount = 0;
 404                                 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000"))
 405                                 {
 406                                         if (linecount == 0) result = NewStrBufDup(Buf);
 407                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 408                                                 if (linecount == 1) {
 409                                                         username = NewStrBufDup(Buf);
 410                                                 }
 411                                                 else if (linecount == 2) {
 412                                                         password = NewStrBufDup(Buf);
 413                                                 }
 414                                                 else if (linecount == 3) {
 415                                                         logged_in_response = NewStrBufDup(Buf);
 416                                                 }
 417                                         }
 418                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 419                                                 if (linecount == 1) {
 420                                                         claimed_id = NewStrBufDup(Buf);
 421                                                 }
 422                                                 if (linecount == 2) {
 423                                                         username = NewStrBufDup(Buf);
 424                                                 }
 425                                         }
 426                                         ++linecount;
 427                                 }
 428                         }
 429                         FreeStrBuf(&Buf);
 430                 }
 431         }
 432
 433         /* If we were already logged in, this was an attempt to associate an OpenID account */
 434         if (already_logged_in) {
 435                 display_openids();
 436                 FreeStrBuf(&result);
 437                 FreeStrBuf(&username);
 438                 FreeStrBuf(&password);
 439                 FreeStrBuf(&claimed_id);
 440                 FreeStrBuf(&logged_in_response);
 441                 return;
 442         }
 443
 444         /* If this operation logged us in, either by connecting with an existing account or by
 445          * auto-creating one using Simple Registration Extension, we're already on our way.
 446          */
 447         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 448                 become_logged_in(username, password, logged_in_response);
 449         }
 450
 451         /* The specified OpenID was verified but the desired user name was either not specified via SRI
 452          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 453          */
 454
 455         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 456                 putbstr("__claimed_id", claimed_id);
 457                 claimed_id = NULL;
 458                 if (StrLength(username) > 0) {
 459                         putbstr("__username", username);
 460                         username = NULL;
 461                 }
 462                 begin_burst();
 463                 do_template("openid_manual_create", NULL);
 464                 end_burst();
 465         }
 466
 467         /* Did we manage to log in?  If so, continue with the normal flow... */
 468         else if (WC->logged_in) {
 469                 if (WC->need_regi) {
 470                         display_reg(1);
 471                 } else {
 472                         do_welcome();
 473                 }
 474         } else {
 475                 display_openid_login(_("Your password was not accepted."));
 476         }
 477
 478         FreeStrBuf(&result);
 479         FreeStrBuf(&username);
 480         FreeStrBuf(&password);
 481         FreeStrBuf(&claimed_id);
 482         FreeStrBuf(&logged_in_response);
 483 }
 484
 485
 486 /*
 487  * Display a welcome screen to the user.
 488  *
 489  * If this is the first time login, and the web based setup is enabled,
 490  * lead the user through the setup routines
 491  */
 492 void do_welcome(void)
 493 {
 494         StrBuf *Buf;
 495 #ifdef XXX_NOT_FINISHED_YET_XXX
 496         FILE *fp;
 497         int i;
 498
 499         /**
 500          * See if we have to run the first-time setup wizard
 501          */
 502         if (WC->is_aide) {
 503                 if (!setup_wizard) {
 504                         int len;
 505                         sprintf(wizard_filename, "setupwiz.%s.%s",
 506                                 ctdlhost, ctdlport);
 507                         len = strlen(wizard_filename);
 508                         for (i=0; i<len; ++i) {
 509                                 if (    (wizard_filename[i]==' ')
 510                                         || (wizard_filename[i] == '/')
 511                                 ) {
 512                                         wizard_filename[i] = '_';
 513                                 }
 514                         }
 515
 516                         fp = fopen(wizard_filename, "r");
 517                         if (fp != NULL) {
 518                                 fgets(buf, sizeof buf, fp);
 519                                 buf[strlen(buf)-1] = 0;
 520                                 fclose(fp);
 521                                 if (atoi(buf) == serv_info.serv_rev_level) {
 522                                         setup_wizard = 1; /**< already run */
 523                                 }
 524                         }
 525                 }
 526
 527                 if (!setup_wizard) {
 528                         http_redirect("setup_wizard");
 529                 }
 530         }
 531 #endif
 532
 533         /*
 534          * Go to the user's preferred start page
 535          */
 536         if (!get_preference("startpage", &Buf)) {
 537                 Buf = NewStrBuf ();
 538                 StrBufPrintf(Buf, "dotskip?room=_BASEROOM_");
 539                 set_preference("startpage", Buf, 1);
 540         }
 541         if (ChrPtr(Buf)[0] == '/') {
 542                 StrBufCutLeft(Buf, 1);
 543         }
 544         if (StrLength(Buf) == 0) {
 545                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 546         }
 547         lprintf(9, "Redirecting to user's start page: %s\n", ChrPtr(Buf));
 548         http_redirect(ChrPtr(Buf));
 549 }
 550
 551
 552 /*
 553  * Disconnect from the Citadel server, and end this WebCit session
 554  */
 555 void end_webcit_session(void) {
 556
 557         serv_puts("QUIT");
 558         WC->killthis = 1;
 559         /* close() of citadel socket will be done by do_housekeeping() */
 560 }
 561
 562 /*
 563  * execute the logout
 564  */
 565 void do_logout(void)
 566 {
 567         wcsession *WCC = WC;
 568         char buf[SIZ];
 569
 570         FlushStrBuf(WCC->wc_username);
 571         FlushStrBuf(WCC->wc_password);
 572         FlushStrBuf(WCC->CurRoom.name);
 573         FlushStrBuf(WCC->wc_fullname);
 574
 575         /* FIXME: this is to suppress the iconbar displaying, because we aren't
 576            actually logged out yet */
 577         WCC->logged_in = 0;
 578
 579         /** Calling output_headers() this way causes the cookies to be un-set */
 580         output_headers(1, 1, 0, 1, 0, 0);
 581
 582         wc_printf("<div id=\"logout_screen\">");
 583         wc_printf("<div class=\"box\">");
 584         wc_printf("<div class=\"boxlabel\">");
 585         wc_printf(_("Log off"));
 586         wc_printf("</div><div class=\"boxcontent\">");
 587         serv_puts("MESG goodbye");
 588         serv_getln(buf, sizeof buf);
 589
 590         if (WCC->serv_sock >= 0) {
 591                 if (buf[0] == '1') {
 592                         fmout("'CENTER'");
 593                 } else {
 594                         wc_printf("Goodbye\n");
 595                 }
 596         }
 597         else {
 598                 wc_printf(_("This program was unable to connect or stay "
 599                         "connected to the Citadel server.  Please report "
 600                         "this problem to your system administrator.")
 601                 );
 602                 wc_printf("<a href=\"http://www.citadel.org/doku.php/"
 603                         "faq:mastering_your_os:net#netstat\">%s</a>",
 604                         _("Read More..."));
 605         }
 606
 607         wc_printf("<hr /><div class=\"buttons\"> "
 608                 "<span class=\"button_link\"><a href=\".\">");
 609         wc_printf(_("Log in again"));
 610         wc_printf("</a></span>");
 611
 612         /* The "close window" link is commented out because some browsers don't
 613          * allow it to work.
 614          *
 615         wc_printf("&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
 616                 "<a href=\"javascript:window.close();\">");
 617         wc_printf(_("Close window"));
 618         wc_printf("</a></span>");
 619          */
 620
 621         wc_printf("</div></div></div>\n");
 622         wDumpContent(2);
 623         end_webcit_session();
 624 }
 625
 626
 627 /*
 628  * validate new users
 629  */
 630 void validate(void)
 631 {
 632         char cmd[SIZ];
 633         char user[SIZ];
 634         char buf[SIZ];
 635         int a;
 636
 637         output_headers(1, 1, 2, 0, 0, 0);
 638         wc_printf("<div id=\"banner\">\n");
 639         wc_printf("<h1>");
 640         wc_printf(_("Validate new users"));
 641         wc_printf("</h1>");
 642         wc_printf("</div>\n");
 643
 644         wc_printf("<div id=\"content\" class=\"service\">\n");
 645
 646         /* If the user just submitted a validation, process it... */
 647         safestrncpy(buf, bstr("user"), sizeof buf);
 648         if (!IsEmptyStr(buf)) {
 649                 if (havebstr("axlevel")) {
 650                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 651                         serv_getln(buf, sizeof buf);
 652                         if (buf[0] != '2') {
 653                                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 654                         }
 655                 }
 656         }
 657
 658         /* Now see if any more users require validation. */
 659         serv_puts("GNUR");
 660         serv_getln(buf, sizeof buf);
 661         if (buf[0] == '2') {
 662                 wc_printf("<b>");
 663                 wc_printf(_("No users require validation at this time."));
 664                 wc_printf("</b><br>\n");
 665                 wDumpContent(1);
 666                 return;
 667         }
 668         if (buf[0] != '3') {
 669                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 670                 wDumpContent(1);
 671                 return;
 672         }
 673
 674         wc_printf("<table class=\"auth_validate\"><tr><td>\n");
 675         wc_printf("<div id=\"validate\">");
 676
 677         safestrncpy(user, &buf[4], sizeof user);
 678         serv_printf("GREG %s", user);
 679         serv_getln(cmd, sizeof cmd);
 680         if (cmd[0] == '1') {
 681                 a = 0;
 682                 do {
 683                         serv_getln(buf, sizeof buf);
 684                         ++a;
 685                         if (a == 1)
 686                                 wc_printf("#%s<br><H1>%s</H1>",
 687                                         buf, &cmd[4]);
 688                         if (a == 2) {
 689                                 char *pch;
 690                                 int haveChar = 0;
 691                                 int haveNum = 0;
 692                                 int haveOther = 0;
 693                                 int count = 0;
 694                                 pch = buf;
 695                                 while (!IsEmptyStr(pch))
 696                                 {
 697                                         if (isdigit(*pch))
 698                                                 haveNum = 1;
 699                                         else if (isalpha(*pch))
 700                                                 haveChar = 1;
 701                                         else
 702                                                 haveOther = 1;
 703                                         pch ++;
 704                                 }
 705                                 count = pch - buf;
 706                                 if (count > 7)
 707                                         count = 0;
 708                                 switch (count){
 709                                 case 0:
 710                                         pch = _("very weak");
 711                                         break;
 712                                 case 1:
 713                                         pch = _("weak");
 714                                         break;
 715                                 case 2:
 716                                         pch = _("ok");
 717                                         break;
 718                                 case 3:
 719                                 default:
 720                                         pch = _("strong");
 721                                 }
 722
 723                                 wc_printf("PW: %s<br>\n", pch);
 724                         }
 725                         if (a == 3)
 726                                 wc_printf("%s<br>\n", buf);
 727                         if (a == 4)
 728                                 wc_printf("%s<br>\n", buf);
 729                         if (a == 5)
 730                                 wc_printf("%s, ", buf);
 731                         if (a == 6)
 732                                 wc_printf("%s ", buf);
 733                         if (a == 7)
 734                                 wc_printf("%s<br>\n", buf);
 735                         if (a == 8)
 736                                 wc_printf("%s<br>\n", buf);
 737                         if (a == 9)
 738                                 wc_printf(_("Current access level: %d (%s)\n"),
 739                                         atoi(buf), axdefs[atoi(buf)]);
 740                 } while (strcmp(buf, "000"));
 741         } else {
 742                 wc_printf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 743         }
 744
 745         wc_printf("<hr />");
 746         wc_printf(_("Select access level for this user:"));
 747         wc_printf("<br />\n");
 748         for (a = 0; a <= 6; ++a) {
 749                 wc_printf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 750                 urlescputs(user);
 751                 wc_printf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 752                         a, axdefs[a]);
 753         }
 754         wc_printf("<br />\n");
 755
 756         wc_printf("</div>\n");
 757         wc_printf("</td></tr></table>\n");
 758         wDumpContent(1);
 759 }
 760
 761
 762
 763 /*
 764  * Display form for registration.
 765  *
 766  * (Set during_login to 1 if this registration is being performed during
 767  * new user login and will require chaining to the proper screen.)
 768  */
 769 void display_reg(int during_login)
 770 {
 771         folder Room;
 772         StrBuf *Buf;
 773         message_summary *VCMsg = NULL;
 774         wc_mime_attachment *VCAtt = NULL;
 775         long vcard_msgnum;
 776
 777         Buf = NewStrBuf();
 778         memset(&Room, 0, sizeof(folder));
 779         if (goto_config_room(Buf, &Room) != 0) {
 780                 lprintf(9, "display_reg() exiting because goto_config_room() failed\n");
 781                 if (during_login) {
 782                         do_welcome();
 783                 }
 784                 else {
 785                         display_main_menu();
 786                 }
 787                 FreeStrBuf(&Buf);
 788                 FlushFolder(&Room);
 789                 return;
 790         }
 791         FlushFolder(&Room);
 792
 793         FreeStrBuf(&Buf);
 794         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 795         if (vcard_msgnum < 0L) {
 796                 lprintf(9, "display_reg() exiting because locate_user_vcard_in_this_room() failed\n");
 797                 if (during_login) {
 798                         do_welcome();
 799                 }
 800                 else {
 801                         display_main_menu();
 802                 }
 803                 return;
 804         }
 805
 806         if (during_login) {
 807                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "do_welcome", USERCONFIGROOM);
 808         }
 809         else {
 810                 StrBuf *ReturnTo;
 811                 ReturnTo = NewStrBufPlain(HKEY("display_main_menu?gotofirst="));
 812                 StrBufAppendBuf(ReturnTo, WC->CurRoom.name, 0);
 813                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, ChrPtr(ReturnTo), USERCONFIGROOM);
 814                 FreeStrBuf(&ReturnTo);
 815         }
 816
 817         /* FIXME - don't we have to free VCMsg and VCAtt ?? */
 818 }
 819
 820
 821
 822
 823 /*
 824  * display form for changing your password
 825  */
 826 void display_changepw(void)
 827 {
 828         WCTemplputParams SubTP;
 829         char buf[SIZ];
 830         StrBuf *Buf;
 831         output_headers(1, 1, 1, 0, 0, 0);
 832
 833         Buf = NewStrBufPlain(_("Change your password"), -1);
 834         memset(&SubTP, 0, sizeof(WCTemplputParams));
 835         SubTP.Filter.ContextType = CTX_STRBUF;
 836         SubTP.Context = Buf;
 837         DoTemplate(HKEY("beginbox"), NULL, &SubTP);
 838
 839         FreeStrBuf(&Buf);
 840
 841         if (!IsEmptyStr(WC->ImportantMessage)) {
 842                 wc_printf("<span class=\"errormsg\">"
 843                         "%s</span><br />\n", WC->ImportantMessage);
 844                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 845         }
 846
 847         serv_puts("MESG changepw");
 848         serv_getln(buf, sizeof buf);
 849         if (buf[0] == '1') {
 850                 fmout("CENTER");
 851         }
 852
 853         wc_printf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 854         wc_printf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 855         wc_printf("<table class=\"altern\" ");
 856         wc_printf("<tr class=\"even\"><td>");
 857         wc_printf(_("Enter new password:"));
 858         wc_printf("</td><td>");
 859         wc_printf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 860         wc_printf("<tr class=\"odd\"><td>");
 861         wc_printf(_("Enter it again to confirm:"));
 862         wc_printf("</td><td>");
 863         wc_printf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 864         wc_printf("</table>\n");
 865
 866         wc_printf("<div class=\"buttons\">\n");
 867         wc_printf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 868         wc_printf("&nbsp;");
 869         wc_printf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 870         wc_printf("</div>\n");
 871         wc_printf("</form>\n");
 872
 873         do_template("endbox", NULL);
 874         wDumpContent(1);
 875 }
 876
 877 /*
 878  * change password
 879  * if passwords match, propagate it to citserver.
 880  */
 881 void changepw(void)
 882 {
 883         char buf[SIZ];
 884         char newpass1[32], newpass2[32];
 885
 886         if (!havebstr("change_action")) {
 887                 safestrncpy(WC->ImportantMessage,
 888                         _("Cancelled.  Password was not changed."),
 889                         sizeof WC->ImportantMessage);
 890                 display_main_menu();
 891                 return;
 892         }
 893
 894         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 895         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 896
 897         if (strcasecmp(newpass1, newpass2)) {
 898                 safestrncpy(WC->ImportantMessage,
 899                         _("They don't match.  Password was not changed."),
 900                         sizeof WC->ImportantMessage);
 901                 display_changepw();
 902                 return;
 903         }
 904
 905         if (IsEmptyStr(newpass1)) {
 906                 safestrncpy(WC->ImportantMessage,
 907                         _("Blank passwords are not allowed."),
 908                         sizeof WC->ImportantMessage);
 909                 display_changepw();
 910                 return;
 911         }
 912
 913         serv_printf("SETP %s", newpass1);
 914         serv_getln(buf, sizeof buf);
 915         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 916         if (buf[0] == '2') {
 917                 if (WC->wc_password == NULL)
 918                         WC->wc_password = NewStrBufPlain(buf, -1);
 919                 else {
 920                         FlushStrBuf(WC->wc_password);
 921                         StrBufAppendBufPlain(WC->wc_password,  buf, -1, 0);
 922                 }
 923                 display_main_menu();
 924         }
 925         else {
 926                 display_changepw();
 927         }
 928 }
 929
 930 int ConditionalHaveAccessCreateRoom(StrBuf *Target, WCTemplputParams *TP)
 931 {
 932         StrBuf *Buf;
 933
 934         Buf = NewStrBuf();
 935         serv_puts("CRE8 0");
 936         StrBuf_ServGetln(Buf);
 937
 938         if (GetServerStatus(Buf, NULL) == 2) {
 939                 StrBufCutLeft(Buf, 4);
 940                 AppendImportantMessage(SKEY(Buf));
 941                 FreeStrBuf(&Buf);
 942                 return 0;
 943         }
 944         FreeStrBuf(&Buf);
 945         return 1;
 946 }
 947
 948 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 949 {
 950         wcsession *WCC = WC;
 951         return (WCC != NULL)? (WC->is_aide == 0) : 0;
 952 }
 953
 954 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP)
 955 {
 956         wcsession *WCC = WC;
 957         return (WCC != NULL)? (WCC->logged_in == 0) : 0;
 958 }
 959
 960
 961 void _display_openid_login(void) {
 962         display_openid_login(NULL);
 963 }
 964
 965
 966 void _display_reg(void) {
 967         display_reg(0);
 968 }
 969
 970
 971 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 972 {
 973         if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
 974         {
 975                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 976                         StrBufCutLeft(Line, 6);
 977                         StrBufDecodeBase64(Line);
 978                         hdr->HR.plainauth = Line;
 979                         hdr->HR.got_auth = AUTH_BASIC;
 980                 }
 981                 else
 982                         lprintf(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 983         }
 984 }
 985
 986 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 987 {
 988 /*
 989   todo: enable this if we can have other sessions than authenticated ones.
 990         if (hdr->DontNeedAuth)
 991                 return;
 992 */
 993         StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
 994         StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
 995         hdr->HR.SessionKey = hashlittle(SKEY(hdr->HR.plainauth), 89479832);
 996 /*
 997         lprintf(1, "CheckAuthBasic: calculated sessionkey %ld\n",
 998                 hdr->HR.SessionKey);
 999 */
1000 }
1001
1002 void GetAuthBasic(ParsedHttpHdrs *hdr)
1003 {
1004         const char *Pos = NULL;
1005         if (hdr->c_username == NULL)
1006                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
1007         if (hdr->c_password == NULL)
1008                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
1009         StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
1010         StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
1011 }
1012
1013 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
1014 {
1015         const char *pch;
1016 /*
1017   todo: enable this if we can have other sessions than authenticated ones.
1018         if (hdr->DontNeedAuth)
1019                 return;
1020 */
1021         pch = strstr(ChrPtr(Line), "webcit=");
1022         if (pch == NULL) {
1023                 return;
1024         }
1025
1026         hdr->HR.RawCookie = Line;
1027         StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
1028         StrBufDecodeHex(hdr->HR.RawCookie);
1029
1030         cookie_to_stuff(Line, &hdr->HR.desired_session,
1031                         hdr->c_username,
1032                         hdr->c_password,
1033                         hdr->c_roomname,
1034                         hdr->c_language
1035         );
1036         hdr->HR.got_auth = AUTH_COOKIE;
1037 }
1038
1039 void
1040 HttpNewModule_AUTH
1041 (ParsedHttpHdrs *httpreq)
1042 {
1043         httpreq->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
1044         httpreq->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
1045         httpreq->c_roomname = NewStrBuf();
1046         httpreq->c_language = NewStrBuf();
1047 }
1048 void
1049 HttpDetachModule_AUTH
1050 (ParsedHttpHdrs *httpreq)
1051 {
1052         FLUSHStrBuf(httpreq->c_username);
1053         FLUSHStrBuf(httpreq->c_password);
1054         FLUSHStrBuf(httpreq->c_roomname);
1055         FLUSHStrBuf(httpreq->c_language);
1056 }
1057
1058 void
1059 HttpDestroyModule_AUTH
1060 (ParsedHttpHdrs *httpreq)
1061 {
1062         FreeStrBuf(&httpreq->c_username);
1063         FreeStrBuf(&httpreq->c_password);
1064         FreeStrBuf(&httpreq->c_roomname);
1065         FreeStrBuf(&httpreq->c_language);
1066 }
1067
1068 void
1069 InitModule_AUTH
1070 (void)
1071 {
1072         initialize_axdefs();
1073         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
1074         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
1075
1076         WebcitAddUrlHandler(HKEY(""), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED); /* no url pattern at all? Show login. */
1077         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
1078         WebcitAddUrlHandler(HKEY("login"), "", 0, do_login, ANONYMOUS|COOKIEUNNEEDED);
1079         WebcitAddUrlHandler(HKEY("display_openid_login"), "", 0, _display_openid_login, ANONYMOUS);
1080         WebcitAddUrlHandler(HKEY("openid_login"), "", 0, do_openid_login, ANONYMOUS);
1081         WebcitAddUrlHandler(HKEY("finalize_openid_login"), "", 0, finalize_openid_login, ANONYMOUS);
1082         WebcitAddUrlHandler(HKEY("openid_manual_create"), "", 0, openid_manual_create, ANONYMOUS);
1083         WebcitAddUrlHandler(HKEY("do_logout"), "", 0, do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1084         WebcitAddUrlHandler(HKEY("ajax_login_username_password"), "", 0, ajax_login_username_password, AJAX);
1085         WebcitAddUrlHandler(HKEY("validate"), "", 0, validate, 0);
1086         WebcitAddUrlHandler(HKEY("display_reg"), "", 0, _display_reg, 0);
1087         WebcitAddUrlHandler(HKEY("display_changepw"), "", 0, display_changepw, 0);
1088         WebcitAddUrlHandler(HKEY("changepw"), "", 0, changepw, 0);
1089         WebcitAddUrlHandler(HKEY("termquit"), "", 0, do_logout, 0);
1090
1091
1092         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1093         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1094         RegisterConditional(HKEY("COND:MAY_CREATE_ROOM"), 2,  ConditionalHaveAccessCreateRoom, CTX_NONE);
1095         return ;
1096 }
1097
1098
1099 void
1100 SessionDestroyModule_AUTH
1101 (wcsession *sess)
1102 {
1103         FreeStrBuf(&sess->wc_username);
1104         FreeStrBuf(&sess->wc_fullname);
1105         FreeStrBuf(&sess->wc_password);
1106         FreeStrBuf(&sess->httpauth_pass);
1107         FreeStrBuf(&sess->cs_inet_email);
1108 }