webcit/auth.c

   1 /*
   2  * These functions handle authentication of users to a Citadel server.
   3  *
   4  * Copyright (c) 1996-2011 by the citadel.org team
   5  *
   6  * This program is open source 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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "webcit.h"
  21 #include "webserver.h"
  22 #include <ctype.h>
  23
  24 extern uint32_t hashlittle( const void *key, size_t length, uint32_t initval);
  25
  26 /*
  27  * Access level definitions.  This is initialized from a function rather than a
  28  * static array so that the strings may be localized.
  29  */
  30 char *axdefs[7];
  31
  32 void initialize_axdefs(void) {
  33
  34         /* an erased user */
  35         axdefs[0] = _("Deleted");
  36
  37         /* a new user */
  38         axdefs[1] = _("New User");
  39
  40         /* a trouble maker */
  41         axdefs[2] = _("Problem User");
  42
  43         /* user with normal privileges */
  44         axdefs[3] = _("Local User");
  45
  46         /* a user that may access network resources */
  47         axdefs[4] = _("Network User");
  48
  49         /* a moderator */
  50         axdefs[5] = _("Preferred User");
  51
  52         /* chief */
  53         axdefs[6] = _("Aide");
  54 }
  55
  56
  57
  58 /*
  59  * Display the login screen
  60  * mesg = the error message if last attempt failed.
  61  */
  62 void display_login(void)
  63 {
  64         begin_burst();
  65         output_headers(1, 0, 0, 0, 1, 0);
  66         do_template("login");
  67         end_burst();
  68 }
  69
  70
  71
  72
  73
  74 /* Initialize the session
  75  *
  76  * This function needs to get called whenever the session changes from
  77  * not-logged-in to logged-in, either by an explicit login by the user or
  78  * by a timed-out session automatically re-establishing with a little help
  79  * from the browser cookie.  Either way, we need to load access controls and
  80  * preferences from the server.
  81  *
  82  * user                 the username
  83  * pass                 his password
  84  * serv_response        The parameters returned from a Citadel USER or NEWU command
  85  */
  86 void become_logged_in(const StrBuf *user, const StrBuf *pass, StrBuf *serv_response)
  87 {
  88         wcsession *WCC = WC;
  89         StrBuf *Buf;
  90         StrBuf *FloorDiv;
  91
  92         WCC->logged_in = 1;
  93
  94         if (WCC->wc_fullname == NULL)
  95                 WCC->wc_fullname = NewStrBufPlain(NULL, StrLength(serv_response));
  96         StrBufExtract_token(WCC->wc_fullname, serv_response, 0, '|');
  97         StrBufCutLeft(WCC->wc_fullname, 4 );
  98
  99         if (WCC->wc_username == NULL)
 100                 WCC->wc_username = NewStrBufDup(user);
 101         else {
 102                 FlushStrBuf(WCC->wc_username);
 103                 StrBufAppendBuf(WCC->wc_username, user, 0);
 104         }
 105
 106         if (WCC->wc_password == NULL)
 107                 WCC->wc_password = NewStrBufDup(pass);
 108         else {
 109                 FlushStrBuf(WCC->wc_password);
 110                 StrBufAppendBuf(WCC->wc_password, pass, 0);
 111         }
 112
 113         WCC->axlevel = StrBufExtract_int(serv_response, 1, '|');
 114         if (WCC->axlevel >= 6) {
 115                 WCC->is_aide = 1;
 116         }
 117
 118         load_preferences();
 119
 120         Buf = NewStrBuf();
 121         serv_puts("CHEK");
 122         StrBuf_ServGetln(Buf);
 123         if (GetServerStatus(Buf, NULL) == 2) {
 124                 const char *pch;
 125
 126                 pch = ChrPtr(Buf) + 4;
 127                 /*WCC->new_mail  =*/ StrBufExtractNext_long(Buf, &pch, '|');
 128                 WCC->need_regi = StrBufExtractNext_long(Buf, &pch, '|');
 129                 WCC->need_vali = StrBufExtractNext_long(Buf, &pch, '|');
 130                 if (WCC->cs_inet_email == NULL)
 131                         WCC->cs_inet_email  = NewStrBuf();
 132                 StrBufExtract_NextToken(WCC->cs_inet_email, Buf, &pch, '|');
 133         }
 134         get_preference("floordiv_expanded", &FloorDiv);
 135         WCC->floordiv_expanded = FloorDiv;
 136         FreeStrBuf(&Buf);
 137         FlushRoomlist();
 138 }
 139
 140
 141 /*
 142  * modal/ajax version of 'login' (username and password)
 143  */
 144 void ajax_login_username_password(void) {
 145         StrBuf *Buf = NewStrBuf();
 146
 147         serv_printf("USER %s", bstr("name"));
 148         StrBuf_ServGetln(Buf);
 149         if (GetServerStatus(Buf, NULL) == 3) {
 150                 serv_printf("PASS %s", bstr("pass"));
 151                 StrBuf_ServGetln(Buf);
 152                 if (GetServerStatus(Buf, NULL) == 2) {
 153                         become_logged_in(sbstr("name"), sbstr("pass"), Buf);
 154                 }
 155         }
 156
 157         /* The client is expecting to read back a citadel protocol response */
 158         wc_printf("%s", ChrPtr(Buf));
 159         FreeStrBuf(&Buf);
 160 }
 161
 162
 163
 164 /*
 165  * modal/ajax version of 'new user' (username and password)
 166  */
 167 void ajax_login_newuser(void) {
 168         StrBuf *NBuf = NewStrBuf();
 169         StrBuf *SBuf = NewStrBuf();
 170
 171         serv_printf("NEWU %s", bstr("name"));
 172         StrBuf_ServGetln(NBuf);
 173         if (GetServerStatus(NBuf, NULL) == 2) {
 174                 become_logged_in(sbstr("name"), sbstr("pass"), NBuf);
 175                 serv_printf("SETP %s", bstr("pass"));
 176                 StrBuf_ServGetln(SBuf);
 177         }
 178
 179         /* The client is expecting to read back a citadel protocol response */
 180         wc_printf("%s", ChrPtr(NBuf));
 181         FreeStrBuf(&NBuf);
 182         FreeStrBuf(&SBuf);
 183 }
 184
 185
 186
 187 /*
 188  * Try to create an account manually after an OpenID was verified
 189  */
 190 void openid_manual_create(void)
 191 {
 192         StrBuf *Buf;
 193
 194         /* Did the user change his mind?  Pack up and go home. */
 195         if (havebstr("exit_action")) {
 196                 begin_burst();
 197                 output_headers(1, 0, 0, 0, 1, 0);
 198                 do_template("authpopup_finished");
 199                 end_burst();
 200                 return;
 201         }
 202
 203
 204         /* Ok, let's give this a try.  Can we create the new user? */
 205
 206         Buf = NewStrBuf();
 207         serv_printf("OIDC %s", bstr("name"));
 208         StrBuf_ServGetln(Buf);
 209         if (GetServerStatus(Buf, NULL) == 2) {
 210                 StrBuf *gpass;
 211
 212                 gpass = NewStrBuf();
 213                 serv_puts("SETP GENERATE_RANDOM_PASSWORD");
 214                 StrBuf_ServGetln(gpass);
 215                 StrBufCutLeft(gpass, 4);
 216                 become_logged_in(sbstr("name"), gpass, Buf);
 217                 FreeStrBuf(&gpass);
 218         }
 219         FreeStrBuf(&Buf);
 220
 221         /* Did we manage to log in?  If so, continue with the normal flow... */
 222         if (WC->logged_in) {
 223                 if (WC->logged_in) {
 224                         begin_burst();
 225                         output_headers(1, 0, 0, 0, 1, 0);
 226                         do_template("authpopup_finished");
 227                         end_burst();
 228                 }
 229         } else {
 230                 /* Still no good!  Go back to teh dialog to select a username */
 231                 const StrBuf *Buf;
 232                 putbstr("__claimed_id", NewStrBufDup(sbstr("openid_url")));
 233                 Buf = sbstr("name");
 234                 if (StrLength(Buf) > 0)
 235                         putbstr("__username", NewStrBufDup(Buf));
 236                 begin_burst();
 237                 output_headers(1, 0, 0, 0, 1, 0);
 238                 wc_printf("<html><body>");
 239                 do_template("openid_manual_create");
 240                 wc_printf("</body></html>");
 241                 end_burst();
 242         }
 243
 244 }
 245
 246
 247 /*
 248  * Perform authentication using OpenID
 249  * assemble the checkid_setup request and then redirect to the user's identity provider
 250  */
 251 void do_openid_login(void)
 252 {
 253         char buf[4096];
 254
 255         snprintf(buf, sizeof buf,
 256                 "OIDS %s|%s/finalize_openid_login|%s",
 257                 bstr("openid_url"),
 258                 ChrPtr(site_prefix),
 259                 ChrPtr(site_prefix)
 260         );
 261
 262         serv_puts(buf);
 263         serv_getln(buf, sizeof buf);
 264         if (buf[0] == '2') {
 265                 syslog(LOG_DEBUG, "OpenID server contacted; redirecting to %s\n", &buf[4]);
 266                 http_redirect(&buf[4]);
 267                 return;
 268         }
 269
 270         begin_burst();
 271         output_headers(1, 0, 0, 0, 1, 0);
 272         wc_printf("<html><body>");
 273         escputs(&buf[4]);
 274         wc_printf("</body></html>");
 275         end_burst();
 276 }
 277
 278
 279 /*
 280  * Complete the authentication using OpenID
 281  * This function handles the positive or negative assertion from the user's Identity Provider
 282  */
 283 void finalize_openid_login(void)
 284 {
 285         StrBuf *Buf;
 286         wcsession *WCC = WC;
 287         int linecount = 0;
 288         StrBuf *result = NULL;
 289         StrBuf *username = NULL;
 290         StrBuf *password = NULL;
 291         StrBuf *logged_in_response = NULL;
 292         StrBuf *claimed_id = NULL;
 293
 294         if (havebstr("openid.mode")) {
 295                 if (!strcasecmp(bstr("openid.mode"), "id_res")) {
 296                         Buf = NewStrBuf();
 297                         serv_puts("OIDF");
 298                         StrBuf_ServGetln(Buf);
 299                         if (GetServerStatus(Buf, NULL) == 8) {
 300                                 urlcontent *u;
 301                                 void *U;
 302                                 long HKLen;
 303                                 const char *HKey;
 304                                 HashPos *Cursor;
 305                                 int len;
 306
 307                                 Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
 308                                 while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 309                                         u = (urlcontent*) U;
 310                                         if (!strncasecmp(u->url_key, "openid.", 7)) {
 311                                                 serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
 312                                         }
 313                                 }
 314
 315                                 serv_puts("000");
 316
 317                                 linecount = 0;
 318                                 while (len = StrBuf_ServGetln(Buf),
 319                                        ((len >= 0) &&
 320                                         ((len != 3) || strcmp(ChrPtr(Buf), "000") )))
 321                                 {
 322                                         if (linecount == 0) result = NewStrBufDup(Buf);
 323                                         if (!strcasecmp(ChrPtr(result), "authenticate")) {
 324                                                 if (linecount == 1) {
 325                                                         username = NewStrBufDup(Buf);
 326                                                 }
 327                                                 else if (linecount == 2) {
 328                                                         password = NewStrBufDup(Buf);
 329                                                 }
 330                                                 else if (linecount == 3) {
 331                                                         logged_in_response = NewStrBufDup(Buf);
 332                                                 }
 333                                         }
 334                                         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 335                                                 if (linecount == 1) {
 336                                                         claimed_id = NewStrBufDup(Buf);
 337                                                 }
 338                                                 if (linecount == 2) {
 339                                                         username = NewStrBufDup(Buf);
 340                                                 }
 341                                         }
 342                                         ++linecount;
 343                                 }
 344                         }
 345                         FreeStrBuf(&Buf);
 346                 }
 347         }
 348
 349         /*
 350          * Is this an attempt to associate a new OpenID with an account that is already logged in?
 351          */
 352         if ( (WCC->logged_in) && (havebstr("attach_existing")) ) {
 353                 display_openids();
 354         }
 355
 356         /* If this operation logged us in, either by connecting with an existing account or by
 357          * auto-creating one using Simple Registration Extension, we're already on our way.
 358          */
 359         else if (!strcasecmp(ChrPtr(result), "authenticate")) {
 360                 become_logged_in(username, password, logged_in_response);
 361
 362                 /* Did we manage to log in?  If so, continue with the normal flow... */
 363                 if (WC->logged_in) {
 364                         begin_burst();
 365                         output_headers(1, 0, 0, 0, 1, 0);
 366                         do_template("authpopup_finished");
 367                         end_burst();
 368                 } else {
 369                         begin_burst();
 370                         output_headers(1, 0, 0, 0, 1, 0);
 371                         wc_printf("<html><body>");
 372                         wc_printf(_("An error has occurred."));
 373                         wc_printf("</body></html>");
 374                         end_burst();
 375                 }
 376         }
 377
 378         /* The specified OpenID was verified but the desired user name was either not specified via SRE
 379          * or conflicts with an existing user.  Either way the user will need to specify a new name.
 380          */
 381         else if (!strcasecmp(ChrPtr(result), "verify_only")) {
 382                 putbstr("__claimed_id", claimed_id);
 383                 claimed_id = NULL;
 384                 if (StrLength(username) > 0) {
 385                         putbstr("__username", username);
 386                         username = NULL;
 387                 }
 388                 begin_burst();
 389                 output_headers(1, 0, 0, 0, 1, 0);
 390                 wc_printf("<html><body>");
 391                 do_template("openid_manual_create");
 392                 wc_printf("</body></html>");
 393                 end_burst();
 394         }
 395
 396         /* Something went VERY wrong if we get to this point */
 397         else {
 398                 syslog(1, "finalize_openid_login() failed to do anything.  This is a code problem.\n");
 399                 begin_burst();
 400                 output_headers(1, 0, 0, 0, 1, 0);
 401                 wc_printf("<html><body>");
 402                 wc_printf(_("An error has occurred."));
 403                 wc_printf("</body></html>");
 404                 end_burst();
 405         }
 406
 407         FreeStrBuf(&result);
 408         FreeStrBuf(&username);
 409         FreeStrBuf(&password);
 410         FreeStrBuf(&claimed_id);
 411         FreeStrBuf(&logged_in_response);
 412 }
 413
 414
 415 /*
 416  * Display a welcome screen to the user.
 417  *
 418  * If this is the first time login, and the web based setup is enabled,
 419  * lead the user through the setup routines
 420  */
 421 void do_welcome(void)
 422 {
 423         StrBuf *Buf;
 424 #ifdef XXX_NOT_FINISHED_YET_XXX
 425         FILE *fp;
 426         int i;
 427
 428         /**
 429          * See if we have to run the first-time setup wizard
 430          */
 431         if (WC->is_aide) {
 432                 if (!setup_wizard) {
 433                         int len;
 434                         sprintf(wizard_filename, "setupwiz.%s.%s",
 435                                 abs(HashLittle(ctdlhost, strlen(ctdlhost))),
 436                                 abs(HashLittle(ctdlport, strlen(ctdlport)))
 437                         );
 438
 439                         fp = fopen(wizard_filename, "r");
 440                         if (fp != NULL) {
 441                                 fgets(buf, sizeof buf, fp);
 442                                 buf[strlen(buf)-1] = 0;
 443                                 fclose(fp);
 444                                 if (atoi(buf) == serv_info.serv_rev_level) {
 445                                         setup_wizard = 1;       /* already run */
 446                                 }
 447                         }
 448                 }
 449
 450                 if (!setup_wizard) {
 451                         http_redirect("setup_wizard");
 452                 }
 453         }
 454 #endif
 455
 456         /*
 457          * Go to the user's preferred start page
 458          */
 459         if (!get_preference("startpage", &Buf)) {
 460                 Buf = NewStrBuf ();
 461                 StrBufPrintf(Buf, "dotskip?room=_BASEROOM_");
 462                 set_preference("startpage", Buf, 1);
 463         }
 464         if (ChrPtr(Buf)[0] == '/') {
 465                 StrBufCutLeft(Buf, 1);
 466         }
 467         if (StrLength(Buf) == 0) {
 468                 StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
 469         }
 470         syslog(9, "Redirecting to user's start page: %s\n", ChrPtr(Buf));
 471         http_redirect(ChrPtr(Buf));
 472 }
 473
 474
 475 /*
 476  * Disconnect from the Citadel server, and end this WebCit session
 477  */
 478 void end_webcit_session(void) {
 479         serv_puts("QUIT");
 480         WC->killthis = 1;
 481         /* close() of citadel socket will be done by do_housekeeping() */
 482 }
 483
 484
 485 /*
 486  * Log out the session with the Citadel server
 487  */
 488 void do_logout(void)
 489 {
 490         wcsession *WCC = WC;
 491         char buf[SIZ];
 492
 493         FlushStrBuf(WCC->wc_username);
 494         FlushStrBuf(WCC->wc_password);
 495         FlushStrBuf(WCC->wc_fullname);
 496         FlushRoomlist();
 497
 498         serv_puts("LOUT");
 499         serv_getln(buf, sizeof buf);
 500         WCC->logged_in = 0;
 501
 502         FlushStrBuf(WCC->CurRoom.name);
 503
 504         /* Calling output_headers() this way causes the cookies to be un-set */
 505         output_headers(1, 1, 0, 1, 0, 0);
 506
 507         /* For sites in guest mode, redirect to the landing page after we're logged out */
 508         if (WC->serv_info->serv_supports_guest) {
 509                 wc_printf("     <script type=\"text/javascript\">       "
 510                         "       window.location='/';                    "
 511                         "       </script>                               "
 512                 );
 513         }
 514
 515         wc_printf("<div id=\"logout_screen\">");
 516         wc_printf("<div class=\"box\">");
 517         wc_printf("<div class=\"boxlabel\">");
 518         wc_printf(_("Log off"));
 519         wc_printf("</div><div class=\"boxcontent\">");
 520         serv_puts("MESG goodbye");
 521         serv_getln(buf, sizeof buf);
 522
 523         if (WCC->serv_sock >= 0) {
 524                 if (buf[0] == '1') {
 525                         fmout("'CENTER'");
 526                 } else {
 527                         wc_printf("Goodbye\n");
 528                 }
 529         }
 530         else {
 531                 wc_printf(_("This program was unable to connect or stay "
 532                         "connected to the Citadel server.  Please report "
 533                         "this problem to your system administrator.")
 534                 );
 535                 wc_printf("<a href=\"http://www.citadel.org/doku.php/"
 536                         "faq:mastering_your_os:net#netstat\">%s</a>",
 537                         _("Read More..."));
 538         }
 539
 540         wc_printf("<hr /><div class=\"buttons\"> "
 541                 "<span class=\"button_link\"><a href=\".\">");
 542         wc_printf(_("Log in again"));
 543         wc_printf("</a></span>");
 544         wc_printf("</div></div></div>\n");
 545         if (WC->serv_info->serv_supports_guest) {
 546                 display_default_landing_page();
 547                 return;
 548         }
 549
 550         wDumpContent(2);
 551         end_webcit_session();
 552 }
 553
 554
 555 /*
 556  * Special page for monitoring scripts etc
 557  */
 558 void monitor(void)
 559 {
 560         output_headers(0, 0, 0, 0, 0, 0);
 561
 562         hprintf("Content-type: text/plain\r\n"
 563                 "Server: " PACKAGE_STRING "\r\n"
 564                 "Connection: close\r\n"
 565         );
 566         begin_burst();
 567
 568         wc_printf("Connection to Citadel server at %s:%s : %s\r\n",
 569                 ctdlhost, ctdlport,
 570                 (WC->connected ? "SUCCESS" : "FAIL")
 571         );
 572
 573         wDumpContent(0);
 574 }
 575
 576
 577 /*
 578  * validate new users
 579  */
 580 void validate(void)
 581 {
 582         char cmd[SIZ];
 583         char user[SIZ];
 584         char buf[SIZ];
 585         int a;
 586
 587         output_headers(1, 1, 1, 0, 0, 0);
 588
 589         do_template("box_begin_1");
 590         StrBufAppendBufPlain(WC->WBuf, _("Validate new users"), -1, 0);
 591         do_template("box_begin_2");
 592
 593         /* If the user just submitted a validation, process it... */
 594         safestrncpy(buf, bstr("user"), sizeof buf);
 595         if (!IsEmptyStr(buf)) {
 596                 if (havebstr("axlevel")) {
 597                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 598                         serv_getln(buf, sizeof buf);
 599                         if (buf[0] != '2') {
 600                                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 601                         }
 602                 }
 603         }
 604
 605         /* Now see if any more users require validation. */
 606         serv_puts("GNUR");
 607         serv_getln(buf, sizeof buf);
 608         if (buf[0] == '2') {
 609                 wc_printf("<b>");
 610                 wc_printf(_("No users require validation at this time."));
 611                 wc_printf("</b><br>\n");
 612                 wDumpContent(1);
 613                 return;
 614         }
 615         if (buf[0] != '3') {
 616                 wc_printf("<b>%s</b><br>\n", &buf[4]);
 617                 wDumpContent(1);
 618                 return;
 619         }
 620
 621         wc_printf("<table class=\"auth_validate\"><tr><td>\n");
 622         wc_printf("<div id=\"validate\">");
 623
 624         safestrncpy(user, &buf[4], sizeof user);
 625         serv_printf("GREG %s", user);
 626         serv_getln(cmd, sizeof cmd);
 627         if (cmd[0] == '1') {
 628                 a = 0;
 629                 do {
 630                         serv_getln(buf, sizeof buf);
 631                         ++a;
 632                         if (a == 1)
 633                                 wc_printf("#%s<br><H1>%s</H1>",
 634                                         buf, &cmd[4]);
 635                         if (a == 2) {
 636                                 char *pch;
 637                                 int haveChar = 0;
 638                                 int haveNum = 0;
 639                                 int haveOther = 0;
 640                                 int haveLong = 0;
 641                                 pch = buf;
 642                                 while (!IsEmptyStr(pch))
 643                                 {
 644                                         if (isdigit(*pch))
 645                                                 haveNum = 1;
 646                                         else if (isalpha(*pch))
 647                                                 haveChar = 1;
 648                                         else
 649                                                 haveOther = 1;
 650                                         pch ++;
 651                                 }
 652                                 if (pch - buf > 7)
 653                                         haveLong = 1;
 654                                 switch (haveLong +
 655                                         haveChar +
 656                                         haveNum +
 657                                         haveOther)
 658                                 {
 659                                 case 0:
 660                                         pch = _("very weak");
 661                                         break;
 662                                 case 1:
 663                                         pch = _("weak");
 664                                         break;
 665                                 case 2:
 666                                         pch = _("ok");
 667                                         break;
 668                                 case 3:
 669                                 default:
 670                                         pch = _("strong");
 671                                 }
 672
 673                                 wc_printf("PW: %s<br>\n", pch);
 674                         }
 675                         if (a == 3)
 676                                 wc_printf("%s<br>\n", buf);
 677                         if (a == 4)
 678                                 wc_printf("%s<br>\n", buf);
 679                         if (a == 5)
 680                                 wc_printf("%s, ", buf);
 681                         if (a == 6)
 682                                 wc_printf("%s ", buf);
 683                         if (a == 7)
 684                                 wc_printf("%s<br>\n", buf);
 685                         if (a == 8)
 686                                 wc_printf("%s<br>\n", buf);
 687                         if (a == 9)
 688                                 wc_printf(_("Current access level: %d (%s)\n"),
 689                                         atoi(buf), axdefs[atoi(buf)]);
 690                 } while (strcmp(buf, "000"));
 691         } else {
 692                 wc_printf("<H1>%s</H1>%s<br>\n", user, &cmd[4]);
 693         }
 694
 695         wc_printf("<hr />");
 696         wc_printf(_("Select access level for this user:"));
 697         wc_printf("<br>\n");
 698         for (a = 0; a <= 6; ++a) {
 699                 wc_printf("<a href=\"validate?nonce=%d?user=", WC->nonce);
 700                 urlescputs(user);
 701                 wc_printf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 702                         a, axdefs[a]);
 703         }
 704         wc_printf("<br>\n");
 705
 706         wc_printf("</div>\n");
 707         wc_printf("</td></tr></table>\n");
 708         do_template("box_end");
 709         wDumpContent(1);
 710 }
 711
 712
 713 /*
 714  * Display form for registration.
 715  *
 716  * (Set during_login to 1 if this registration is being performed during
 717  * new user login and will require chaining to the proper screen.)
 718  */
 719 void display_reg(int during_login)
 720 {
 721         folder Room;
 722         StrBuf *Buf;
 723         message_summary *VCMsg = NULL;
 724         wc_mime_attachment *VCAtt = NULL;
 725         long vcard_msgnum;
 726
 727         Buf = NewStrBuf();
 728         memset(&Room, 0, sizeof(folder));
 729         if (goto_config_room(Buf, &Room) != 0) {
 730                 syslog(9, "display_reg() exiting because goto_config_room() failed\n");
 731                 if (during_login) {
 732                         pop_destination();
 733                 }
 734                 else {
 735                         display_main_menu();
 736                 }
 737                 FreeStrBuf(&Buf);
 738                 FlushFolder(&Room);
 739                 return;
 740         }
 741         FlushFolder(&Room);
 742
 743         FreeStrBuf(&Buf);
 744         vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
 745         if (vcard_msgnum < 0L) {
 746                 syslog(9, "display_reg() exiting because locate_user_vcard_in_this_room() failed\n");
 747                 if (during_login) {
 748                         pop_destination();
 749                 }
 750                 else {
 751                         display_main_menu();
 752                 }
 753                 return;
 754         }
 755
 756         if (during_login) {
 757                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "pop", USERCONFIGROOM);
 758         }
 759         else {
 760                 StrBuf *ReturnTo;
 761                 ReturnTo = NewStrBufPlain(HKEY("display_main_menu?go="));
 762                 StrBufAppendBuf(ReturnTo, WC->CurRoom.name, 0);
 763                 do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, ChrPtr(ReturnTo), USERCONFIGROOM);
 764                 FreeStrBuf(&ReturnTo);
 765         }
 766
 767 }
 768
 769
 770 /*
 771  * display form for changing your password
 772  */
 773 void display_changepw(void)
 774 {
 775         wcsession *WCC = WC;
 776         WCTemplputParams SubTP;
 777         char buf[SIZ];
 778         StrBuf *Buf;
 779         output_headers(1, 1, 1, 0, 0, 0);
 780
 781         Buf = NewStrBufPlain(_("Change your password"), -1);
 782         memset(&SubTP, 0, sizeof(WCTemplputParams));
 783         SubTP.Filter.ContextType = CTX_STRBUF;
 784         SubTP.Context = Buf;
 785         DoTemplate(HKEY("box_begin"), NULL, &SubTP);
 786
 787         FreeStrBuf(&Buf);
 788
 789         if (StrLength(WCC->ImportantMsg) > 0) {
 790                 wc_printf("<span class=\"errormsg\">"
 791                           "%s</span><br>\n", ChrPtr(WCC->ImportantMsg));
 792                 FlushStrBuf(WCC->ImportantMsg);
 793         }
 794
 795         serv_puts("MESG changepw");
 796         serv_getln(buf, sizeof buf);
 797         if (buf[0] == '1') {
 798                 fmout("CENTER");
 799         }
 800
 801         wc_printf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 802         wc_printf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 803         wc_printf("<table class=\"altern\" ");
 804         wc_printf("<tr class=\"even\"><td>");
 805         wc_printf(_("Enter new password:"));
 806         wc_printf("</td><td>");
 807         wc_printf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 808         wc_printf("<tr class=\"odd\"><td>");
 809         wc_printf(_("Enter it again to confirm:"));
 810         wc_printf("</td><td>");
 811         wc_printf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 812         wc_printf("</table>\n");
 813
 814         wc_printf("<div class=\"buttons\">\n");
 815         wc_printf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 816         wc_printf("&nbsp;");
 817         wc_printf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 818         wc_printf("</div>\n");
 819         wc_printf("</form>\n");
 820
 821         do_template("box_end");
 822         wDumpContent(1);
 823 }
 824
 825 /*
 826  * change password
 827  * if passwords match, propagate it to citserver.
 828  */
 829 void changepw(void)
 830 {
 831         StrBuf *Line;
 832         char newpass1[32], newpass2[32];
 833
 834         if (!havebstr("change_action")) {
 835                 AppendImportantMessage(_("Cancelled.  Password was not changed."), -1);
 836                 display_main_menu();
 837                 return;
 838         }
 839
 840         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 841         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 842
 843         if (strcasecmp(newpass1, newpass2)) {
 844                 AppendImportantMessage(_("They don't match.  Password was not changed."), -1);
 845                 display_changepw();
 846                 return;
 847         }
 848
 849         if (IsEmptyStr(newpass1)) {
 850                 AppendImportantMessage(_("Blank passwords are not allowed."), -1);
 851                 display_changepw();
 852                 return;
 853         }
 854
 855         Line = NewStrBuf();
 856         serv_printf("SETP %s", newpass1);
 857         StrBuf_ServGetln(Line);
 858         if (GetServerStatusMsg(Line, NULL, 1, 0) == 2) {
 859                 if (WC->wc_password == NULL)
 860                         WC->wc_password = NewStrBufPlain(
 861                                 ChrPtr(Line) + 4,
 862                                 StrLength(Line) - 4);
 863                 else {
 864                         FlushStrBuf(WC->wc_password);
 865                         StrBufAppendBufPlain(WC->wc_password,
 866                                              ChrPtr(Line) + 4,
 867                                              StrLength(Line) - 4, 0);
 868                 }
 869                 display_main_menu();
 870         }
 871         else {
 872                 display_changepw();
 873         }
 874         FreeStrBuf(&Line);
 875 }
 876
 877
 878 int ConditionalHaveAccessCreateRoom(StrBuf *Target, WCTemplputParams *TP)
 879 {
 880         StrBuf *Buf;
 881
 882         Buf = NewStrBuf();
 883         serv_puts("CRE8 0");
 884         StrBuf_ServGetln(Buf);
 885
 886         if (GetServerStatus(Buf, NULL) == 2) {
 887                 StrBufCutLeft(Buf, 4);
 888                 AppendImportantMessage(SKEY(Buf));
 889                 FreeStrBuf(&Buf);
 890                 return 0;
 891         }
 892         FreeStrBuf(&Buf);
 893         return 1;
 894 }
 895
 896
 897 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 898 {
 899         wcsession *WCC = WC;
 900         return (WCC != NULL) ? ((WCC->logged_in == 0)||(WC->is_aide == 0)) : 0;
 901 }
 902
 903
 904 int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP)
 905 {
 906         wcsession *WCC = WC;
 907         return (WCC != NULL) ? (WCC->logged_in == 0) : 0;
 908
 909 }
 910
 911
 912 /*
 913  * toggle the session over to a different language
 914  */
 915 void switch_language(void) {
 916         set_selected_language(bstr("lang"));
 917         pop_destination();
 918 }
 919
 920
 921 void _display_reg(void) {
 922         display_reg(0);
 923 }
 924
 925
 926 void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
 927 {
 928         if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
 929         {
 930                 if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
 931                         StrBufCutLeft(Line, 6);
 932                         StrBufDecodeBase64(Line);
 933                         hdr->HR.plainauth = Line;
 934                         hdr->HR.got_auth = AUTH_BASIC;
 935                 }
 936                 else
 937                         syslog(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
 938         }
 939 }
 940
 941
 942 void CheckAuthBasic(ParsedHttpHdrs *hdr)
 943 {
 944 /*
 945   todo: enable this if we can have other sessions than authenticated ones.
 946         if (hdr->DontNeedAuth)
 947                 return;
 948 */
 949         StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
 950         StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
 951 }
 952
 953
 954 void GetAuthBasic(ParsedHttpHdrs *hdr)
 955 {
 956         const char *Pos = NULL;
 957         if (hdr->c_username == NULL)
 958                 hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 959         if (hdr->c_password == NULL)
 960                 hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 961         StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
 962         StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
 963 }
 964
 965
 966 void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
 967 {
 968         const char *pch;
 969 /*
 970   todo: enable this if we can have other sessions than authenticated ones.
 971         if (hdr->DontNeedAuth)
 972                 return;
 973 */
 974         pch = strstr(ChrPtr(Line), "webcit=");
 975         if (pch == NULL) {
 976                 return;
 977         }
 978
 979         hdr->HR.RawCookie = Line;
 980         StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
 981         StrBufDecodeHex(hdr->HR.RawCookie);
 982
 983         cookie_to_stuff(Line, &hdr->HR.desired_session,
 984                         hdr->c_username,
 985                         hdr->c_password,
 986                         hdr->c_roomname,
 987                         hdr->c_language
 988         );
 989         hdr->HR.got_auth = AUTH_COOKIE;
 990 }
 991
 992
 993 void
 994 HttpNewModule_AUTH
 995 (ParsedHttpHdrs *httpreq)
 996 {
 997         httpreq->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
 998         httpreq->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
 999         httpreq->c_roomname = NewStrBuf();
1000         httpreq->c_language = NewStrBuf();
1001 }
1002
1003
1004 void
1005 HttpDetachModule_AUTH
1006 (ParsedHttpHdrs *httpreq)
1007 {
1008         FLUSHStrBuf(httpreq->c_username);
1009         FLUSHStrBuf(httpreq->c_password);
1010         FLUSHStrBuf(httpreq->c_roomname);
1011         FLUSHStrBuf(httpreq->c_language);
1012 }
1013
1014
1015 void
1016 HttpDestroyModule_AUTH
1017 (ParsedHttpHdrs *httpreq)
1018 {
1019         FreeStrBuf(&httpreq->c_username);
1020         FreeStrBuf(&httpreq->c_password);
1021         FreeStrBuf(&httpreq->c_roomname);
1022         FreeStrBuf(&httpreq->c_language);
1023 }
1024
1025
1026 void
1027 InitModule_AUTH
1028 (void)
1029 {
1030         initialize_axdefs();
1031         RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
1032         RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
1033
1034         /* no url pattern at all? Show login. */
1035         WebcitAddUrlHandler(HKEY(""), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
1036
1037         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
1038         WebcitAddUrlHandler(HKEY("openid_login"), "", 0, do_openid_login, ANONYMOUS);
1039         WebcitAddUrlHandler(HKEY("finalize_openid_login"), "", 0, finalize_openid_login, ANONYMOUS);
1040         WebcitAddUrlHandler(HKEY("openid_manual_create"), "", 0, openid_manual_create, ANONYMOUS);
1041         WebcitAddUrlHandler(HKEY("validate"), "", 0, validate, 0);
1042         WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, 0);
1043         WebcitAddUrlHandler(HKEY("display_reg"), "", 0, _display_reg, 0);
1044         WebcitAddUrlHandler(HKEY("display_changepw"), "", 0, display_changepw, 0);
1045         WebcitAddUrlHandler(HKEY("changepw"), "", 0, changepw, 0);
1046         WebcitAddUrlHandler(HKEY("termquit"), "", 0, do_logout, 0);
1047         WebcitAddUrlHandler(HKEY("do_logout"), "", 0, do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1048         WebcitAddUrlHandler(HKEY("monitor"), "", 0, monitor, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1049         WebcitAddUrlHandler(HKEY("ajax_login_username_password"), "", 0, ajax_login_username_password, AJAX|ANONYMOUS);
1050         WebcitAddUrlHandler(HKEY("ajax_login_newuser"), "", 0, ajax_login_newuser, AJAX|ANONYMOUS);
1051         WebcitAddUrlHandler(HKEY("switch_language"), "", 0, switch_language, ANONYMOUS);
1052         RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
1053         RegisterConditional(HKEY("COND:LOGGEDIN"), 2, ConditionalIsLoggedIn, CTX_NONE);
1054         RegisterConditional(HKEY("COND:MAY_CREATE_ROOM"), 2,  ConditionalHaveAccessCreateRoom, CTX_NONE);
1055         return;
1056 }
1057
1058
1059 void
1060 SessionDestroyModule_AUTH
1061 (wcsession *sess)
1062 {
1063         FreeStrBuf(&sess->wc_username);
1064         FreeStrBuf(&sess->wc_fullname);
1065         FreeStrBuf(&sess->wc_password);
1066         FreeStrBuf(&sess->httpauth_pass);
1067         FreeStrBuf(&sess->cs_inet_email);
1068 }