webcit/auth.c

   1 /*
   2  * $Id$
   3  *
   4  * WebcitAuth; Handles authentication of users to a Citadel server.
   5  */
   6
   7 #include "webcit.h"
   8
   9 /*
  10  * user states
  11  * the plain text states of a user. filled in at \ function TODO initialize_ax_defs()
  12  * due to NLS
  13  */
  14 char *axdefs[7];
  15
  16 void initialize_axdefs(void) {
  17         axdefs[0] = _("Deleted");       /*!0: an erased user */
  18         axdefs[1] = _("New User");      /*!1: a new user */
  19         axdefs[2] = _("Problem User");  /*!2: a trouble maker */
  20         axdefs[3] = _("Local User");    /*!3: user with normal privileges */
  21         axdefs[4] = _("Network User");  /*!4: a user that may access network resources */
  22         axdefs[5] = _("Preferred User");/*!5: a moderator */
  23         axdefs[6] = _("Aide");          /*!6: 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         if (havebstr("language")) {
 270                 set_selected_language(bstr("language"));
 271                 go_selected_language();
 272         }
 273
 274         if (havebstr("exit_action")) {
 275                 do_logout();
 276                 return;
 277         }
 278         if (havebstr("login_action")) {
 279
 280                 fetch_http(bstr("openid_url"));         // FIXME
 281
 282         }
 283         if (WC->logged_in) {
 284                 if (WC->need_regi) {
 285                         display_reg(1);
 286                 } else {
 287                         do_welcome();
 288                 }
 289         } else {
 290                 display_openid_login(_("Your password was not accepted."));
 291         }
 292
 293 }
 294
 295
 296
 297
 298
 299
 300
 301
 302 /*
 303  * display the user a welcome screen.
 304  *
 305  * if this is the first time login, and the web based setup is enabled,
 306  * lead the user through the setup routines
 307  */
 308 void do_welcome(void)
 309 {
 310         char buf[SIZ];
 311 #ifdef XXX_NOT_FINISHED_YET_XXX
 312         FILE *fp;
 313         int i;
 314
 315         /**
 316          * See if we have to run the first-time setup wizard
 317          */
 318         if (WC->is_aide) {
 319                 if (!setup_wizard) {
 320                         int len;
 321                         sprintf(wizard_filename, "setupwiz.%s.%s",
 322                                 ctdlhost, ctdlport);
 323                         len = strlen(wizard_filename);
 324                         for (i=0; i<len; ++i) {
 325                                 if (    (wizard_filename[i]==' ')
 326                                         || (wizard_filename[i] == '/')
 327                                 ) {
 328                                         wizard_filename[i] = '_';
 329                                 }
 330                         }
 331
 332                         fp = fopen(wizard_filename, "r");
 333                         if (fp != NULL) {
 334                                 fgets(buf, sizeof buf, fp);
 335                                 buf[strlen(buf)-1] = 0;
 336                                 fclose(fp);
 337                                 if (atoi(buf) == serv_info.serv_rev_level) {
 338                                         setup_wizard = 1; /**< already run */
 339                                 }
 340                         }
 341                 }
 342
 343                 if (!setup_wizard) {
 344                         http_redirect("setup_wizard");
 345                 }
 346         }
 347 #endif
 348
 349         /*
 350          * Go to the user's preferred start page
 351          */
 352         get_preference("startpage", buf, sizeof buf);
 353         if (IsEmptyStr(buf)) {
 354                 safestrncpy(buf, "dotskip&room=_BASEROOM_", sizeof buf);
 355                 set_preference("startpage", buf, 1);
 356         }
 357         if (buf[0] == '/') {
 358                 strcpy(buf, &buf[1]);
 359         }
 360         http_redirect(buf);
 361 }
 362
 363
 364 /*
 365  * Disconnect from the Citadel server, and end this WebCit session
 366  */
 367 void end_webcit_session(void) {
 368         char buf[256];
 369
 370         if (WC->logged_in) {
 371                 sprintf(buf, "%d", WC->current_iconbar);
 372                 set_preference("current_iconbar", buf, 0);
 373                 set_preference("floordiv_expanded", WC->floordiv_expanded, 1);
 374         }
 375
 376         serv_puts("QUIT");
 377         WC->killthis = 1;
 378         /* close() of citadel socket will be done by do_housekeeping() */
 379 }
 380
 381 /*
 382  * execute the logout
 383  */
 384 void do_logout(void)
 385 {
 386         char buf[SIZ];
 387
 388         safestrncpy(WC->wc_username, "", sizeof WC->wc_username);
 389         safestrncpy(WC->wc_password, "", sizeof WC->wc_password);
 390         safestrncpy(WC->wc_roomname, "", sizeof WC->wc_roomname);
 391         safestrncpy(WC->wc_fullname, "", sizeof WC->wc_fullname);
 392
 393         /** Calling output_headers() this way causes the cookies to be un-set */
 394         output_headers(1, 1, 0, 1, 0, 0);
 395
 396         wprintf("<div id=\"logout_screen\">");
 397         wprintf("<div class=\"box\">");
 398         wprintf("<div class=\"boxlabel\">");
 399         wprintf(_("Log off"));
 400         wprintf("</div><div class=\"boxcontent\">");
 401         serv_puts("MESG goodbye");
 402         serv_getln(buf, sizeof buf);
 403
 404         if (WC->serv_sock >= 0) {
 405                 if (buf[0] == '1') {
 406                         fmout("CENTER");
 407                 } else {
 408                         wprintf("Goodbye\n");
 409                 }
 410         }
 411         else {
 412                 wprintf(_("This program was unable to connect or stay "
 413                         "connected to the Citadel server.  Please report "
 414                         "this problem to your system administrator.")
 415                 );
 416                 wprintf("<a href=\"http://www.citadel.org/doku.php/"
 417                         "faq:mastering_your_os:net#netstat\">%s</a>",
 418                         _("Read More..."));
 419         }
 420
 421         wprintf("<hr /><div class=\"buttons\"> "
 422                 "<span class=\"button_link\"><a href=\".\">");
 423         wprintf(_("Log in again"));
 424         wprintf("</a></span>&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
 425                 "<a href=\"javascript:window.close();\">");
 426         wprintf(_("Close window"));
 427         wprintf("</a></span></div></div></div></div>\n");
 428         wDumpContent(2);
 429         end_webcit_session();
 430 }
 431
 432
 433 /*
 434  * validate new users
 435  */
 436 void validate(void)
 437 {
 438         char cmd[SIZ];
 439         char user[SIZ];
 440         char buf[SIZ];
 441         int a;
 442
 443         output_headers(1, 1, 2, 0, 0, 0);
 444         wprintf("<div id=\"banner\">\n");
 445         wprintf("<h1>");
 446         wprintf(_("Validate new users"));
 447         wprintf("</h1>");
 448         wprintf("</div>\n");
 449
 450         wprintf("<div id=\"content\" class=\"service\">\n");
 451
 452         /* If the user just submitted a validation, process it... */
 453         safestrncpy(buf, bstr("user"), sizeof buf);
 454         if (!IsEmptyStr(buf)) {
 455                 if (havebstr("axlevel")) {
 456                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 457                         serv_getln(buf, sizeof buf);
 458                         if (buf[0] != '2') {
 459                                 wprintf("<b>%s</b><br />\n", &buf[4]);
 460                         }
 461                 }
 462         }
 463
 464         /* Now see if any more users require validation. */
 465         serv_puts("GNUR");
 466         serv_getln(buf, sizeof buf);
 467         if (buf[0] == '2') {
 468                 wprintf("<b>");
 469                 wprintf(_("No users require validation at this time."));
 470                 wprintf("</b><br />\n");
 471                 wDumpContent(1);
 472                 return;
 473         }
 474         if (buf[0] != '3') {
 475                 wprintf("<b>%s</b><br />\n", &buf[4]);
 476                 wDumpContent(1);
 477                 return;
 478         }
 479
 480         wprintf("<div class=\"fix_scrollbar_bug\">"
 481                 "<table class=\"auth_validate\"><tr><td>\n");
 482         wprintf("<center>");
 483
 484         safestrncpy(user, &buf[4], sizeof user);
 485         serv_printf("GREG %s", user);
 486         serv_getln(cmd, sizeof cmd);
 487         if (cmd[0] == '1') {
 488                 a = 0;
 489                 do {
 490                         serv_getln(buf, sizeof buf);
 491                         ++a;
 492                         if (a == 1)
 493                                 wprintf("#%s<br /><H1>%s</H1>",
 494                                         buf, &cmd[4]);
 495                         if (a == 2)
 496                                 wprintf("PW: %s<br />\n", buf);
 497                         if (a == 3)
 498                                 wprintf("%s<br />\n", buf);
 499                         if (a == 4)
 500                                 wprintf("%s<br />\n", buf);
 501                         if (a == 5)
 502                                 wprintf("%s, ", buf);
 503                         if (a == 6)
 504                                 wprintf("%s ", buf);
 505                         if (a == 7)
 506                                 wprintf("%s<br />\n", buf);
 507                         if (a == 8)
 508                                 wprintf("%s<br />\n", buf);
 509                         if (a == 9)
 510                                 wprintf(_("Current access level: %d (%s)\n"),
 511                                         atoi(buf), axdefs[atoi(buf)]);
 512                 } while (strcmp(buf, "000"));
 513         } else {
 514                 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 515         }
 516
 517         wprintf("<hr />");
 518         wprintf(_("Select access level for this user:"));
 519         wprintf("<br />\n");
 520         for (a = 0; a <= 6; ++a) {
 521                 wprintf("<a href=\"validate?nonce=%ld?user=", WC->nonce);
 522                 urlescputs(user);
 523                 wprintf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 524                         a, axdefs[a]);
 525         }
 526         wprintf("<br />\n");
 527
 528         wprintf("</CENTER>\n");
 529         wprintf("</td></tr></table></div>\n");
 530         wDumpContent(1);
 531 }
 532
 533
 534
 535 /*
 536  * Display form for registration.
 537  *
 538  * (Set during_login to 1 if this registration is being performed during
 539  * new user login and will require chaining to the proper screen.)
 540  */
 541 void display_reg(int during_login)
 542 {
 543         long vcard_msgnum;
 544
 545         if (goto_config_room() != 0) {
 546                 if (during_login) do_welcome();
 547                 else display_main_menu();
 548                 return;
 549         }
 550
 551         vcard_msgnum = locate_user_vcard(WC->wc_fullname, -1);
 552         if (vcard_msgnum < 0L) {
 553                 if (during_login) do_welcome();
 554                 else display_main_menu();
 555                 return;
 556         }
 557
 558         if (during_login) {
 559                 do_edit_vcard(vcard_msgnum, "1", "do_welcome", USERCONFIGROOM);
 560         }
 561         else {
 562                 do_edit_vcard(vcard_msgnum, "1", "display_main_menu", USERCONFIGROOM);
 563         }
 564
 565 }
 566
 567
 568
 569
 570 /*
 571  * display form for changing your password
 572  */
 573 void display_changepw(void)
 574 {
 575         char buf[SIZ];
 576
 577         output_headers(1, 1, 1, 0, 0, 0);
 578
 579         svput("BOXTITLE", WCS_STRING, _("Change your password"));
 580         do_template("beginbox");
 581
 582         if (!IsEmptyStr(WC->ImportantMessage)) {
 583                 wprintf("<span class=\"errormsg\">"
 584                         "%s</span><br />\n", WC->ImportantMessage);
 585                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 586         }
 587
 588         serv_puts("MESG changepw");
 589         serv_getln(buf, sizeof buf);
 590         if (buf[0] == '1') {
 591                 fmout("CENTER");
 592         }
 593
 594         wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 595         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%ld\">\n", WC->nonce);
 596         wprintf("<table class=\"altern\" ");
 597         wprintf("<tr class=\"even\"><td>");
 598         wprintf(_("Enter new password:"));
 599         wprintf("</td><td>");
 600         wprintf("<input type=\"password\" name=\"newpass1\" value=\"\" maxlength=\"20\"></td></tr>\n");
 601         wprintf("<tr class=\"odd\"><td>");
 602         wprintf(_("Enter it again to confirm:"));
 603         wprintf("</td><td>");
 604         wprintf("<input type=\"password\" name=\"newpass2\" value=\"\" maxlength=\"20\"></td></tr>\n");
 605         wprintf("</table>\n");
 606
 607         wprintf("<div class=\"buttons\">\n");
 608         wprintf("<input type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 609         wprintf("&nbsp;");
 610         wprintf("<input type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 611         wprintf("</div>\n");
 612         wprintf("</form>\n");
 613
 614         do_template("endbox");
 615         wDumpContent(1);
 616 }
 617
 618 /*
 619  * change password
 620  * if passwords match, propagate it to citserver.
 621  */
 622 void changepw(void)
 623 {
 624         char buf[SIZ];
 625         char newpass1[32], newpass2[32];
 626
 627         if (!havebstr("change_action")) {
 628                 safestrncpy(WC->ImportantMessage,
 629                         _("Cancelled.  Password was not changed."),
 630                         sizeof WC->ImportantMessage);
 631                 display_main_menu();
 632                 return;
 633         }
 634
 635         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 636         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 637
 638         if (strcasecmp(newpass1, newpass2)) {
 639                 safestrncpy(WC->ImportantMessage,
 640                         _("They don't match.  Password was not changed."),
 641                         sizeof WC->ImportantMessage);
 642                 display_changepw();
 643                 return;
 644         }
 645
 646         if (IsEmptyStr(newpass1)) {
 647                 safestrncpy(WC->ImportantMessage,
 648                         _("Blank passwords are not allowed."),
 649                         sizeof WC->ImportantMessage);
 650                 display_changepw();
 651                 return;
 652         }
 653
 654         serv_printf("SETP %s", newpass1);
 655         serv_getln(buf, sizeof buf);
 656         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 657         if (buf[0] == '2') {
 658                 safestrncpy(WC->wc_password, buf, sizeof WC->wc_password);
 659                 display_main_menu();
 660         }
 661         else {
 662                 display_changepw();
 663         }
 664 }
 665
 666
 667
 668 void InitModule_AUTH(void)
 669 {
 670         WebcitAddUrlHandler(HKEY("do_welcome"), do_welcome, 0);
 671         return ;
 672 }