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 (strlen(mesg) > 0) {
  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 (strlen(bstr("language")) > 0) {
 146                 set_selected_language(bstr("language"));
 147                 go_selected_language();
 148         }
 149
 150         if (strlen(bstr("exit_action")) > 0) {
 151                 do_logout();
 152                 return;
 153         }
 154         if (strlen(bstr("login_action")) > 0) {
 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 (strlen(bstr("newuser_action")) > 0) {
 173                 if (strlen(bstr("pass")) == 0) {
 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                         sprintf(wizard_filename, "setupwiz.%s.%s",
 218                                 ctdlhost, ctdlport);
 219                         for (i=0; i<strlen(wizard_filename); ++i) {
 220                                 if (    (wizard_filename[i]==' ')
 221                                         || (wizard_filename[i] == '/')
 222                                 ) {
 223                                         wizard_filename[i] = '_';
 224                                 }
 225                         }
 226
 227                         fp = fopen(wizard_filename, "r");
 228                         if (fp != NULL) {
 229                                 fgets(buf, sizeof buf, fp);
 230                                 buf[strlen(buf)-1] = 0;
 231                                 fclose(fp);
 232                                 if (atoi(buf) == serv_info.serv_rev_level) {
 233                                         setup_wizard = 1; /**< already run */
 234                                 }
 235                         }
 236                 }
 237
 238                 if (!setup_wizard) {
 239                         http_redirect("setup_wizard");
 240                 }
 241         }
 242 #endif
 243
 244         /**
 245          * Go to the user's preferred start page
 246          */
 247         get_preference("startpage", buf, sizeof buf);
 248         if (strlen(buf)==0) {
 249                 safestrncpy(buf, "dotskip&room=_BASEROOM_", sizeof buf);
 250                 set_preference("startpage", buf, 1);
 251         }
 252         if (buf[0] == '/') {
 253                 strcpy(buf, &buf[1]);
 254         }
 255         http_redirect(buf);
 256 }
 257
 258
 259 /**
 260  * Disconnect from the Citadel server, and end this WebCit session
 261  */
 262 void end_webcit_session(void) {
 263         char buf[256];
 264
 265         if (WC->logged_in) {
 266                 sprintf(buf, "%d", WC->current_iconbar);
 267                 set_preference("current_iconbar", buf, 0);
 268                 set_preference("floordiv_expanded", WC->floordiv_expanded, 1);
 269         }
 270
 271         serv_puts("QUIT");
 272         WC->killthis = 1;
 273         /* close() of citadel socket will be done by do_housekeeping() */
 274 }
 275
 276 /**
 277  * execute the logout
 278  */
 279 void do_logout(void)
 280 {
 281         char buf[SIZ];
 282
 283         safestrncpy(WC->wc_username, "", sizeof WC->wc_username);
 284         safestrncpy(WC->wc_password, "", sizeof WC->wc_password);
 285         safestrncpy(WC->wc_roomname, "", sizeof WC->wc_roomname);
 286         safestrncpy(WC->wc_fullname, "", sizeof WC->wc_fullname);
 287
 288         /** Calling output_headers() this way causes the cookies to be un-set */
 289         output_headers(1, 1, 0, 1, 0, 0);
 290
 291         wprintf("<center>");
 292         serv_puts("MESG goodbye");
 293         serv_getln(buf, sizeof buf);
 294
 295         if (WC->serv_sock >= 0) {
 296                 if (buf[0] == '1') {
 297                         fmout("CENTER");
 298                 } else {
 299                         wprintf("Goodbye\n");
 300                 }
 301         }
 302         else {
 303                 wprintf(_("This program was unable to connect or stay "
 304                         "connected to the Citadel server.  Please report "
 305                         "this problem to your system administrator.")
 306                 );
 307         }
 308
 309         wprintf("<hr /><a href=\".\">");
 310         wprintf(_("Log in again"));
 311         wprintf("</A>&nbsp;&nbsp;&nbsp;"
 312                 "<a href=\"javascript:window.close();\">");
 313         wprintf(_("Close window"));
 314         wprintf("</a></center>\n");
 315         wDumpContent(2);
 316         end_webcit_session();
 317 }
 318
 319
 320 /* *
 321  * validate new users
 322  */
 323 void validate(void)
 324 {
 325         char cmd[SIZ];
 326         char user[SIZ];
 327         char buf[SIZ];
 328         int a;
 329
 330         output_headers(1, 1, 2, 0, 0, 0);
 331         wprintf("<div id=\"banner\">\n"
 332                 "<TABLE class=\"auth_banner\"><TR><TD>"
 333                 "<SPAN CLASS=\"titlebar\">");
 334         wprintf(_("Validate new users"));
 335         wprintf("</SPAN></TD></TR></TABLE>\n</div>\n<div id=\"content\">\n");
 336
 337         /** If the user just submitted a validation, process it... */
 338         safestrncpy(buf, bstr("user"), sizeof buf);
 339         if (strlen(buf) > 0) {
 340                 if (strlen(bstr("axlevel")) > 0) {
 341                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 342                         serv_getln(buf, sizeof buf);
 343                         if (buf[0] != '2') {
 344                                 wprintf("<b>%s</b><br />\n", &buf[4]);
 345                         }
 346                 }
 347         }
 348
 349         /** Now see if any more users require validation. */
 350         serv_puts("GNUR");
 351         serv_getln(buf, sizeof buf);
 352         if (buf[0] == '2') {
 353                 wprintf("<b>");
 354                 wprintf(_("No users require validation at this time."));
 355                 wprintf("</b><br />\n");
 356                 wDumpContent(1);
 357                 return;
 358         }
 359         if (buf[0] != '3') {
 360                 wprintf("<b>%s</b><br />\n", &buf[4]);
 361                 wDumpContent(1);
 362                 return;
 363         }
 364
 365         wprintf("<div class=\"fix_scrollbar_bug\">"
 366                 "<table class=\"auth_validate\"><tr><td>\n");
 367         wprintf("<center>");
 368
 369         safestrncpy(user, &buf[4], sizeof user);
 370         serv_printf("GREG %s", user);
 371         serv_getln(cmd, sizeof cmd);
 372         if (cmd[0] == '1') {
 373                 a = 0;
 374                 do {
 375                         serv_getln(buf, sizeof buf);
 376                         ++a;
 377                         if (a == 1)
 378                                 wprintf("#%s<br /><H1>%s</H1>",
 379                                         buf, &cmd[4]);
 380                         if (a == 2)
 381                                 wprintf("PW: %s<br />\n", buf);
 382                         if (a == 3)
 383                                 wprintf("%s<br />\n", buf);
 384                         if (a == 4)
 385                                 wprintf("%s<br />\n", buf);
 386                         if (a == 5)
 387                                 wprintf("%s, ", buf);
 388                         if (a == 6)
 389                                 wprintf("%s ", buf);
 390                         if (a == 7)
 391                                 wprintf("%s<br />\n", buf);
 392                         if (a == 8)
 393                                 wprintf("%s<br />\n", buf);
 394                         if (a == 9)
 395                                 wprintf(_("Current access level: %d (%s)\n"),
 396                                         atoi(buf), axdefs[atoi(buf)]);
 397                 } while (strcmp(buf, "000"));
 398         } else {
 399                 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 400         }
 401
 402         wprintf("<hr />");
 403         wprintf(_("Select access level for this user:"));
 404         wprintf("<br />\n");
 405         for (a = 0; a <= 6; ++a) {
 406                 wprintf("<a href=\"validate?nonce=%ld?user=", WC->nonce);
 407                 urlescputs(user);
 408                 wprintf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 409                         a, axdefs[a]);
 410         }
 411         wprintf("<br />\n");
 412
 413         wprintf("</CENTER>\n");
 414         wprintf("</td></tr></table></div>\n");
 415         wDumpContent(1);
 416 }
 417
 418
 419
 420 /**
 421  * \brief Display form for registration.
 422  * (Set during_login to 1 if this registration is being performed during
 423  * new user login and will require chaining to the proper screen.)
 424  * \param during_login are we just in the login phase?
 425  */
 426 void display_reg(int during_login)
 427 {
 428         long vcard_msgnum;
 429
 430         if (goto_config_room() != 0) {
 431                 if (during_login) do_welcome();
 432                 else display_main_menu();
 433                 return;
 434         }
 435
 436         vcard_msgnum = locate_user_vcard(WC->wc_fullname, -1);
 437         if (vcard_msgnum < 0L) {
 438                 if (during_login) do_welcome();
 439                 else display_main_menu();
 440                 return;
 441         }
 442
 443         if (during_login) {
 444                 do_edit_vcard(vcard_msgnum, "1", "do_welcome");
 445         }
 446         else {
 447                 do_edit_vcard(vcard_msgnum, "1", "display_main_menu");
 448         }
 449
 450 }
 451
 452
 453
 454
 455 /**
 456  * display form for changing your password
 457  */
 458 void display_changepw(void)
 459 {
 460         char buf[SIZ];
 461
 462         output_headers(1, 1, 2, 0, 0, 0);
 463         wprintf("<div id=\"banner\">\n"
 464                 "<TABLE class=\"auth_banner\"><TR><TD>"
 465                 "<SPAN CLASS=\"titlebar\">");
 466         wprintf(_("Change your password"));
 467         wprintf("</SPAN>"
 468                 "</TD></TR></TABLE>\n"
 469                 "</div>\n<div id=\"content\">\n"
 470         );
 471
 472         if (strlen(WC->ImportantMessage) > 0) {
 473                 do_template("beginbox_nt");
 474                 wprintf("<SPAN CLASS=\"errormsg\">"
 475                         "%s</SPAN><br />\n", WC->ImportantMessage);
 476                 do_template("endbox");
 477                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 478         }
 479
 480         wprintf("<div class=\"fix_scrollbar_bug\">"
 481                 "<table class=\"auth_validate\"><tr><td>\n");
 482
 483         wprintf("<CENTER><br />");
 484         serv_puts("MESG changepw");
 485         serv_getln(buf, sizeof buf);
 486         if (buf[0] == '1') {
 487                 fmout("CENTER");
 488         }
 489
 490         wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 491         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%ld\">\n", WC->nonce);
 492         wprintf("<CENTER>"
 493                 "<table border=\"0\" cellspacing=\"5\" cellpadding=\"5\" "
 494                 "BGCOLOR=\"#EEEEEE\">"
 495                 "<TR><TD>");
 496         wprintf(_("Enter new password:"));
 497         wprintf("</TD>\n");
 498         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass1\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 499         wprintf("<TR><TD>");
 500         wprintf(_("Enter it again to confirm:"));
 501         wprintf("</TD>\n");
 502         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass2\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 503
 504         wprintf("</TABLE><br />\n");
 505         wprintf("<INPUT type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 506         wprintf("&nbsp;");
 507         wprintf("<INPUT type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 508         wprintf("</form></center>\n");
 509         wprintf("</td></tr></table></div>\n");
 510         wDumpContent(1);
 511 }
 512
 513 /**
 514  * \brief change password
 515  * if passwords match, propagate it to citserver.
 516  */
 517 void changepw(void)
 518 {
 519         char buf[SIZ];
 520         char newpass1[32], newpass2[32];
 521
 522         if (strlen(bstr("change_action")) == 0) {
 523                 safestrncpy(WC->ImportantMessage,
 524                         _("Cancelled.  Password was not changed."),
 525                         sizeof WC->ImportantMessage);
 526                 display_main_menu();
 527                 return;
 528         }
 529
 530         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 531         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 532
 533         if (strcasecmp(newpass1, newpass2)) {
 534                 safestrncpy(WC->ImportantMessage,
 535                         _("They don't match.  Password was not changed."),
 536                         sizeof WC->ImportantMessage);
 537                 display_changepw();
 538                 return;
 539         }
 540
 541         if (strlen(newpass1) == 0) {
 542                 safestrncpy(WC->ImportantMessage,
 543                         _("Blank passwords are not allowed."),
 544                         sizeof WC->ImportantMessage);
 545                 display_changepw();
 546                 return;
 547         }
 548
 549         serv_printf("SETP %s", newpass1);
 550         serv_getln(buf, sizeof buf);
 551         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 552         if (buf[0] == '2') {
 553                 safestrncpy(WC->wc_password, buf, sizeof WC->wc_password);
 554                 display_main_menu();
 555         }
 556         else {
 557                 display_changepw();
 558         }
 559 }
 560
 561
 562
 563 /** @} */