webcit/auth.c

   1 /*
   2  * $Id$
   3  *
   4  * WebcitAuth; Handles authentication of users to a Citadel server.
   5  */
   6
   7 #include "webcit.h"
   8 #include "webserver.h"
   9
  10 /*
  11  * Access level definitions.  This is initialized from a function rather than a
  12  * static array so that the strings may be localized.
  13  */
  14 char *axdefs[7];
  15
  16 void initialize_axdefs(void) {
  17         axdefs[0] = _("Deleted");       /* an erased user */
  18         axdefs[1] = _("New User");      /* a new user */
  19         axdefs[2] = _("Problem User");  /* a trouble maker */
  20         axdefs[3] = _("Local User");    /* user with normal privileges */
  21         axdefs[4] = _("Network User");  /* a user that may access network resources */
  22         axdefs[5] = _("Preferred User");/* a moderator */
  23         axdefs[6] = _("Aide");          /* chief */
  24 }
  25
  26
  27
  28
  29 /*
  30  * Display the login screen
  31  * mesg = the error message if last attempt failed.
  32  */
  33 void display_login(char *mesg)
  34 {
  35         char buf[SIZ];
  36
  37         output_headers(1, 1, 2, 0, 0, 0);
  38         wprintf("<div id=\"login_screen\">\n");
  39
  40         if (mesg != NULL) if (!IsEmptyStr(mesg)) {
  41                         stresc(buf, SIZ,  mesg, 0, 0);
  42                         svprintf(HKEY("MESG"), WCS_STRING, "%s", buf);
  43         }
  44
  45         svprintf(HKEY("LOGIN_INSTRUCTIONS"), WCS_STRING,
  46                 _("<ul>"
  47                 "<li><b>If you already have an account on %s</b>, "
  48                 "enter your user name and password and click &quot;Login.&quot; "
  49                 "<li><b>If you are a new user</b>, enter the name and password "
  50                 "you wish to use, "
  51                 "and click &quot;New User.&quot; "
  52                 "<li>Please log off properly when finished. "
  53                 "<li>You must use a browser that supports <i>frames</i> and "
  54                 "<i>cookies</i>. "
  55                 "<li>Also keep in mind that if your browser is "
  56                 "configured to block pop-up windows, you will not be able "
  57                 "to receive any instant messages.<br />"
  58                 "</ul>"),
  59                 serv_info.serv_humannode
  60         );
  61
  62         svput("USERNAME_BOX", WCS_STRING, _("User name:"));
  63         svput("PASSWORD_BOX", WCS_STRING, _("Password:"));
  64         svput("LANGUAGE_BOX", WCS_STRING, _("Language:"));
  65         svput("LOGIN_BUTTON", WCS_STRING, _("Login"));
  66         svput("NEWUSER_BUTTON", WCS_STRING, _("New User"));
  67         svput("EXIT_BUTTON", WCS_STRING, _("Exit"));
  68         svput("HELLO", WCS_SERVCMD, "MESG hello");
  69         svprintf(HKEY("BOXTITLE"), WCS_STRING, _("%s - powered by <a href=\"http://www.citadel.org\">Citadel</a>"),
  70                 serv_info.serv_humannode);
  71         svcallback("DO_LANGUAGE_BOX", offer_languages);
  72         if (serv_info.serv_newuser_disabled) {
  73                 svput("NEWUSER_BUTTON_PRE", WCS_STRING, "<div style=\"display:none;\">");
  74                 svput("NEWUSER_BUTTON_POST", WCS_STRING, "</div>");
  75         }
  76         else {
  77                 svput("NEWUSER_BUTTON_PRE", WCS_STRING, "");
  78                 svput("NEWUSER_BUTTON_POST", WCS_STRING, "");
  79         }
  80
  81 #ifdef TECH_PREVIEW
  82                 svprintf(HKEY("OFFER_OPENID_LOGIN"), WCS_STRING,
  83                         "<div align=center>"
  84                         "<a href=\"display_openid_login\">"
  85                         "<img src=\"static/openid-small.gif\" border=0 valign=middle>"
  86                         "%s</a>"
  87                         "</div>"
  88                         ,
  89                         "Log in using OpenID"
  90                 );
  91 #else
  92                 svput("OFFER_OPENID_LOGIN", WCS_STRING, "");
  93 #endif
  94
  95         do_template("login");
  96
  97         wDumpContent(2);
  98 }
  99
 100
 101
 102
 103 /*
 104  * Display the openid-enabled login screen
 105  * mesg = the error message if last attempt failed.
 106  */
 107 void display_openid_login(char *mesg)
 108 {
 109         char buf[SIZ];
 110
 111         output_headers(1, 1, 2, 0, 0, 0);
 112         wprintf("<div id=\"login_screen\">\n");
 113
 114         if (mesg != NULL) if (!IsEmptyStr(mesg)) {
 115                         stresc(buf, SIZ,  mesg, 0, 0);
 116                         svprintf(HKEY("MESG"), WCS_STRING, "%s", buf);
 117         }
 118
 119         svprintf(HKEY("LOGIN_INSTRUCTIONS"), WCS_STRING,
 120                 _("<ul>"
 121                 "<li>Enter your OpenID URL and click &quot;Login&quot;."
 122                 "<li>Please log off properly when finished. "
 123                 "<li>You must use a browser that supports <i>frames</i> and "
 124                 "<i>cookies</i>. "
 125                 "<li>Also keep in mind that if your browser is "
 126                 "configured to block pop-up windows, you will not be able "
 127                 "to receive any instant messages.<br />"
 128                 "</ul>")
 129         );
 130
 131         svput("OPENID_BOX", WCS_STRING, _("OpenID URL:"));
 132         svput("LANGUAGE_BOX", WCS_STRING, _("Language:"));
 133         svput("LOGIN_BUTTON", WCS_STRING, _("Login"));
 134         svput("EXIT_BUTTON", WCS_STRING, _("Exit"));
 135         svput("HELLO", WCS_SERVCMD, "MESG hello");
 136         svprintf(HKEY("BOXTITLE"), WCS_STRING, _("%s - powered by <a href=\"http://www.citadel.org\">Citadel</a>"),
 137                 serv_info.serv_humannode);
 138         svcallback("DO_LANGUAGE_BOX", offer_languages);
 139
 140         svprintf(HKEY("OFFER_CONVENTIONAL_LOGIN"), WCS_STRING,
 141                 "<div align=center>"
 142                 "<a href=\"display_login\">"
 143                 "%s</a>"
 144                 "</div>"
 145                 ,
 146                 "Log in using a user name and password"
 147         );
 148
 149         do_template("openid_login");
 150         wDumpContent(2);
 151 }
 152
 153
 154
 155
 156 /* Initialize the session
 157  *
 158  * This function needs to get called whenever the session changes from
 159  * not-logged-in to logged-in, either by an explicit login by the user or
 160  * by a timed-out session automatically re-establishing with a little help
 161  * from the browser cookie.  Either way, we need to load access controls and
 162  * preferences from the server.
 163  *
 164  * user                 the username
 165  * pass                 his password
 166  * serv_response        The parameters returned from a Citadel USER or NEWU command
 167  */
 168 void become_logged_in(char *user, char *pass, char *serv_response)
 169 {
 170         char buf[SIZ];
 171
 172         WC->logged_in = 1;
 173         extract_token(WC->wc_fullname, &serv_response[4], 0, '|', sizeof WC->wc_fullname);
 174         safestrncpy(WC->wc_username, user, sizeof WC->wc_username);
 175         safestrncpy(WC->wc_password, pass, sizeof WC->wc_password);
 176         WC->axlevel = extract_int(&serv_response[4], 1);
 177         if (WC->axlevel >= 6) {
 178                 WC->is_aide = 1;
 179         }
 180
 181         load_preferences();
 182
 183         serv_puts("CHEK");
 184         serv_getln(buf, sizeof buf);
 185         if (buf[0] == '2') {
 186                 WC->new_mail = extract_int(&buf[4], 0);
 187                 WC->need_regi = extract_int(&buf[4], 1);
 188                 WC->need_vali = extract_int(&buf[4], 2);
 189                 extract_token(WC->cs_inet_email, &buf[4], 3, '|', sizeof WC->cs_inet_email);
 190         }
 191
 192         get_preference("current_iconbar", buf, sizeof buf);
 193         WC->current_iconbar = atoi(buf);
 194
 195         get_preference("floordiv_expanded", WC->floordiv_expanded, sizeof WC->floordiv_expanded);
 196 }
 197
 198
 199 /*
 200  * Perform authentication using a user name and password
 201  */
 202 void do_login(void)
 203 {
 204         char buf[SIZ];
 205
 206         if (havebstr("language")) {
 207                 set_selected_language(bstr("language"));
 208                 go_selected_language();
 209         }
 210
 211         if (havebstr("exit_action")) {
 212                 do_logout();
 213                 return;
 214         }
 215         if (havebstr("login_action")) {
 216                 serv_printf("USER %s", bstr("name"));
 217                 serv_getln(buf, sizeof buf);
 218                 if (buf[0] == '3') {
 219                         serv_printf("PASS %s", bstr("pass"));
 220                         serv_getln(buf, sizeof buf);
 221                         if (buf[0] == '2') {
 222                                 become_logged_in(bstr("name"),
 223                                                  bstr("pass"), buf);
 224                         } else {
 225                                 display_login(&buf[4]);
 226                                 return;
 227                         }
 228                 } else {
 229                         display_login(&buf[4]);
 230                         return;
 231                 }
 232         }
 233         if (havebstr("newuser_action")) {
 234                 if (!havebstr("pass")) {
 235                         display_login(_("Blank passwords are not allowed."));
 236                         return;
 237                 }
 238                 serv_printf("NEWU %s", bstr("name"));
 239                 serv_getln(buf, sizeof buf);
 240                 if (buf[0] == '2') {
 241                         become_logged_in(bstr("name"), bstr("pass"), buf);
 242                         serv_printf("SETP %s", bstr("pass"));
 243                         serv_getln(buf, sizeof buf);
 244                 } else {
 245                         display_login(&buf[4]);
 246                         return;
 247                 }
 248         }
 249         if (WC->logged_in) {
 250                 if (WC->need_regi) {
 251                         display_reg(1);
 252                 } else {
 253                         do_welcome();
 254                 }
 255         } else {
 256                 display_login(_("Your password was not accepted."));
 257         }
 258
 259 }
 260
 261
 262
 263
 264 /*
 265  * Perform authentication using OpenID
 266  */
 267 void do_openid_login(void)
 268 {
 269         int i;
 270         char buf[4096];
 271
 272         if (havebstr("language")) {
 273                 set_selected_language(bstr("language"));
 274                 go_selected_language();
 275         }
 276
 277         if (havebstr("exit_action")) {
 278                 do_logout();
 279                 return;
 280         }
 281         if (havebstr("login_action")) {
 282
 283                 i = fetch_http(bstr("openid_url"), buf, sizeof buf);
 284                 lprintf(9, "fetched %d bytes (FIXME do something with it)\n", i);
 285
 286
 287         }
 288         if (WC->logged_in) {
 289                 if (WC->need_regi) {
 290                         display_reg(1);
 291                 } else {
 292                         do_welcome();
 293                 }
 294         } else {
 295                 display_openid_login(_("Your password was not accepted."));
 296         }
 297
 298 }
 299
 300
 301
 302
 303
 304
 305
 306
 307 /*
 308  * display the user a welcome screen.
 309  *
 310  * if this is the first time login, and the web based setup is enabled,
 311  * lead the user through the setup routines
 312  */
 313 void do_welcome(void)
 314 {
 315         char buf[SIZ];
 316 #ifdef XXX_NOT_FINISHED_YET_XXX
 317         FILE *fp;
 318         int i;
 319
 320         /**
 321          * See if we have to run the first-time setup wizard
 322          */
 323         if (WC->is_aide) {
 324                 if (!setup_wizard) {
 325                         int len;
 326                         sprintf(wizard_filename, "setupwiz.%s.%s",
 327                                 ctdlhost, ctdlport);
 328                         len = strlen(wizard_filename);
 329                         for (i=0; i<len; ++i) {
 330                                 if (    (wizard_filename[i]==' ')
 331                                         || (wizard_filename[i] == '/')
 332                                 ) {
 333                                         wizard_filename[i] = '_';
 334                                 }
 335                         }
 336
 337                         fp = fopen(wizard_filename, "r");
 338                         if (fp != NULL) {
 339                                 fgets(buf, sizeof buf, fp);
 340                                 buf[strlen(buf)-1] = 0;
 341                                 fclose(fp);
 342                                 if (atoi(buf) == serv_info.serv_rev_level) {
 343                                         setup_wizard = 1; /**< already run */
 344                                 }
 345                         }
 346                 }
 347
 348                 if (!setup_wizard) {
 349                         http_redirect("setup_wizard");
 350                 }
 351         }
 352 #endif
 353
 354         /*
 355          * Go to the user's preferred start page
 356          */
 357         get_preference("startpage", buf, sizeof buf);
 358         if (IsEmptyStr(buf)) {
 359                 safestrncpy(buf, "dotskip&room=_BASEROOM_", sizeof buf);
 360                 set_preference("startpage", buf, 1);
 361         }
 362         if (buf[0] == '/') {
 363                 strcpy(buf, &buf[1]);
 364         }
 365         http_redirect(buf);
 366 }
 367
 368
 369 /*
 370  * Disconnect from the Citadel server, and end this WebCit session
 371  */
 372 void end_webcit_session(void) {
 373         char buf[256];
 374
 375         if (WC->logged_in) {
 376                 sprintf(buf, "%d", WC->current_iconbar);
 377                 set_preference("current_iconbar", buf, 0);
 378                 set_preference("floordiv_expanded", WC->floordiv_expanded, 1);
 379         }
 380
 381         serv_puts("QUIT");
 382         WC->killthis = 1;
 383         /* close() of citadel socket will be done by do_housekeeping() */
 384 }
 385
 386 /*
 387  * execute the logout
 388  */
 389 void do_logout(void)
 390 {
 391         char buf[SIZ];
 392
 393         safestrncpy(WC->wc_username, "", sizeof WC->wc_username);
 394         safestrncpy(WC->wc_password, "", sizeof WC->wc_password);
 395         safestrncpy(WC->wc_roomname, "", sizeof WC->wc_roomname);
 396         safestrncpy(WC->wc_fullname, "", sizeof WC->wc_fullname);
 397
 398         /** Calling output_headers() this way causes the cookies to be un-set */
 399         output_headers(1, 1, 0, 1, 0, 0);
 400
 401         wprintf("<div id=\"logout_screen\">");
 402         wprintf("<div class=\"box\">");
 403         wprintf("<div class=\"boxlabel\">");
 404         wprintf(_("Log off"));
 405         wprintf("</div><div class=\"boxcontent\">");
 406         serv_puts("MESG goodbye");
 407         serv_getln(buf, sizeof buf);
 408
 409         if (WC->serv_sock >= 0) {
 410                 if (buf[0] == '1') {
 411                         fmout("CENTER");
 412                 } else {
 413                         wprintf("Goodbye\n");
 414                 }
 415         }
 416         else {
 417                 wprintf(_("This program was unable to connect or stay "
 418                         "connected to the Citadel server.  Please report "
 419                         "this problem to your system administrator.")
 420                 );
 421                 wprintf("<a href=\"http://www.citadel.org/doku.php/"
 422                         "faq:mastering_your_os:net#netstat\">%s</a>",
 423                         _("Read More..."));
 424         }
 425
 426         wprintf("<hr /><div class=\"buttons\"> "
 427                 "<span class=\"button_link\"><a href=\".\">");
 428         wprintf(_("Log in again"));
 429         wprintf("</a></span>&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
 430                 "<a href=\"javascript:window.close();\">");
 431         wprintf(_("Close window"));
 432         wprintf("</a></span></div></div></div></div>\n");
 433         wDumpContent(2);
 434         end_webcit_session();
 435 }
 436
 437
 438 /*
 439  * validate new users
 440  */
 441 void validate(void)
 442 {
 443         char cmd[SIZ];
 444         char user[SIZ];
 445         char buf[SIZ];
 446         int a;
 447
 448         output_headers(1, 1, 2, 0, 0, 0);
 449         wprintf("<div id=\"banner\">\n");
 450         wprintf("<h1>");
 451         wprintf(_("Validate new users"));
 452         wprintf("</h1>");
 453         wprintf("</div>\n");
 454
 455         wprintf("<div id=\"content\" class=\"service\">\n");
 456
 457         /* If the user just submitted a validation, process it... */
 458         safestrncpy(buf, bstr("user"), sizeof buf);
 459         if (!IsEmptyStr(buf)) {
 460                 if (havebstr("axlevel")) {
 461                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 462                         serv_getln(buf, sizeof buf);
 463                         if (buf[0] != '2') {
 464                                 wprintf("<b>%s</b><br />\n", &buf[4]);
 465                         }
 466                 }
 467         }
 468
 469         /* Now see if any more users require validation. */
 470         serv_puts("GNUR");
 471         serv_getln(buf, sizeof buf);
 472         if (buf[0] == '2') {
 473                 wprintf("<b>");
 474                 wprintf(_("No users require validation at this time."));
 475                 wprintf("</b><br />\n");
 476                 wDumpContent(1);
 477                 return;
 478         }
 479         if (buf[0] != '3') {
 480                 wprintf("<b>%s</b><br />\n", &buf[4]);
 481                 wDumpContent(1);
 482                 return;
 483         }
 484
 485         wprintf("<div class=\"fix_scrollbar_bug\">"
 486                 "<table class=\"auth_validate\"><tr><td>\n");
 487         wprintf("<center>");
 488
 489         safestrncpy(user, &buf[4], sizeof user);
 490         serv_printf("GREG %s", user);
 491         serv_getln(cmd, sizeof cmd);
 492         if (cmd[0] == '1') {
 493                 a = 0;
 494                 do {
 495                         serv_getln(buf, sizeof buf);
 496                         ++a;
 497                         if (a == 1)
 498                                 wprintf("#%s<br /><H1>%s</H1>",
 499                                         buf, &cmd[4]);
 500                         if (a == 2)
 501                                 wprintf("PW: %s<br />\n", buf);
 502                         if (a == 3)
 503                                 wprintf("%s<br />\n", buf);
 504                         if (a == 4)
 505                                 wprintf("%s<br />\n", buf);
 506                         if (a == 5)
 507                                 wprintf("%s, ", buf);
 508                         if (a == 6)
 509                                 wprintf("%s ", buf);
 510                         if (a == 7)
 511                                 wprintf("%s<br />\n", buf);
 512                         if (a == 8)
 513                                 wprintf("%s<br />\n", buf);
 514                         if (a == 9)
 515                                 wprintf(_("Current access level: %d (%s)\n"),
 516                                         atoi(buf), axdefs[atoi(buf)]);
 517                 } while (strcmp(buf, "000"));
 518         } else {
 519                 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 520         }
 521
 522         wprintf("<hr />");
 523         wprintf(_("Select access level for this user:"));
 524         wprintf("<br />\n");
 525         for (a = 0; a <= 6; ++a) {
 526                 wprintf("<a href=\"validate?nonce=%ld?user=", WC->nonce);
 527                 urlescputs(user);
 528                 wprintf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 529                         a, axdefs[a]);
 530         }
 531         wprintf("<br />\n");
 532
 533         wprintf("</CENTER>\n");
 534         wprintf("</td></tr></table></div>\n");
 535         wDumpContent(1);
 536 }
 537
 538
 539
 540 /*
 541  * Display form for registration.
 542  *
 543  * (Set during_login to 1 if this registration is being performed during
 544  * new user login and will require chaining to the proper screen.)
 545  */
 546 void display_reg(int during_login)
 547 {
 548         long vcard_msgnum;
 549
 550         if (goto_config_room() != 0) {
 551                 if (during_login) do_welcome();
 552                 else display_main_menu();
 553                 return;
 554         }
 555
 556         vcard_msgnum = locate_user_vcard(WC->wc_fullname, -1);
 557         if (vcard_msgnum < 0L) {
 558                 if (during_login) do_welcome();
 559                 else display_main_menu();
 560                 return;
 561         }
 562
 563         if (during_login) {
 564                 do_edit_vcard(vcard_msgnum, "1", "do_welcome", USERCONFIGROOM);
 565         }
 566         else {
 567                 do_edit_vcard(vcard_msgnum, "1", "display_main_menu", USERCONFIGROOM);
 568         }
 569
 570 }
 571
 572
 573
 574
 575 /*
 576  * display form for changing your password
 577  */
 578 void display_changepw(void)
 579 {
 580         char buf[SIZ];
 581
 582         output_headers(1, 1, 1, 0, 0, 0);
 583
 584         svput("BOXTITLE", WCS_STRING, _("Change your password"));
 585         do_template("beginbox");
 586
 587         if (!IsEmptyStr(WC->ImportantMessage)) {
 588                 wprintf("<span class=\"errormsg\">"
 589                         "%s</span><br />\n", WC->ImportantMessage);
 590                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 591         }
 592
 593         serv_puts("MESG changepw");
 594         serv_getln(buf, sizeof buf);
 595         if (buf[0] == '1') {
 596                 fmout("CENTER");
 597         }
 598
 599         wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 600         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%ld\">\n", WC->nonce);
 601         wprintf("<table class=\"altern\" ");
 602         wprintf("<tr class=\"even\"><td>");
 603         wprintf(_("Enter new password:"));
 604         wprintf("</td><td>");
 605         wprintf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 606         wprintf("<tr class=\"odd\"><td>");
 607         wprintf(_("Enter it again to confirm:"));
 608         wprintf("</td><td>");
 609         wprintf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 610         wprintf("</table>\n");
 611
 612         wprintf("<div class=\"buttons\">\n");
 613         wprintf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 614         wprintf("&nbsp;");
 615         wprintf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 616         wprintf("</div>\n");
 617         wprintf("</form>\n");
 618
 619         do_template("endbox");
 620         wDumpContent(1);
 621 }
 622
 623 /*
 624  * change password
 625  * if passwords match, propagate it to citserver.
 626  */
 627 void changepw(void)
 628 {
 629         char buf[SIZ];
 630         char newpass1[32], newpass2[32];
 631
 632         if (!havebstr("change_action")) {
 633                 safestrncpy(WC->ImportantMessage,
 634                         _("Cancelled.  Password was not changed."),
 635                         sizeof WC->ImportantMessage);
 636                 display_main_menu();
 637                 return;
 638         }
 639
 640         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 641         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 642
 643         if (strcasecmp(newpass1, newpass2)) {
 644                 safestrncpy(WC->ImportantMessage,
 645                         _("They don't match.  Password was not changed."),
 646                         sizeof WC->ImportantMessage);
 647                 display_changepw();
 648                 return;
 649         }
 650
 651         if (IsEmptyStr(newpass1)) {
 652                 safestrncpy(WC->ImportantMessage,
 653                         _("Blank passwords are not allowed."),
 654                         sizeof WC->ImportantMessage);
 655                 display_changepw();
 656                 return;
 657         }
 658
 659         serv_printf("SETP %s", newpass1);
 660         serv_getln(buf, sizeof buf);
 661         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 662         if (buf[0] == '2') {
 663                 safestrncpy(WC->wc_password, buf, sizeof WC->wc_password);
 664                 display_main_menu();
 665         }
 666         else {
 667                 display_changepw();
 668         }
 669 }
 670
 671
 672
 673 void InitModule_AUTH(void)
 674 {
 675         WebcitAddUrlHandler(HKEY("do_welcome"), do_welcome, 0);
 676         return ;
 677 }