webcit/auth.c

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