webcit/auth.c

   1 /*
   2  * $Id$
   3  */
   4 /**
   5  *
   6  * \defgroup WebcitAuth WebcitAuth; Handles authentication of users to a Citadel server.
   7  *
   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 style=\"position:absolute; top:20px; left:20px; right:20px\">\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 Citadel"),
  76                 serv_info.serv_humannode);
  77         svcallback("DO_LANGUAGE_BOX", offer_languages);
  78
  79         do_template("login");
  80
  81         wDumpContent(2);
  82 }
  83
  84
  85
  86
  87 /** \brief Initialize the session
  88  * This function needs to get called whenever the session changes from
  89  * not-logged-in to logged-in, either by an explicit login by the user or
  90  * by a timed-out session automatically re-establishing with a little help
  91  * from the browser cookie.  Either way, we need to load access controls and
  92  * preferences from the server.
  93  *
  94  * \param user the username
  95  * \param pass his password
  96  * \param serv_response The parameters returned from a Citadel USER or NEWU command
  97  */
  98 void become_logged_in(char *user, char *pass, char *serv_response)
  99 {
 100         char buf[SIZ];
 101
 102         WC->logged_in = 1;
 103         extract_token(WC->wc_fullname, &serv_response[4], 0, '|', sizeof WC->wc_fullname);
 104         safestrncpy(WC->wc_username, user, sizeof WC->wc_username);
 105         safestrncpy(WC->wc_password, pass, sizeof WC->wc_password);
 106         WC->axlevel = extract_int(&serv_response[4], 1);
 107         if (WC->axlevel >= 6) {
 108                 WC->is_aide = 1;
 109         }
 110
 111         load_preferences();
 112
 113         serv_puts("CHEK");
 114         serv_getln(buf, sizeof buf);
 115         if (buf[0] == '2') {
 116                 WC->new_mail = extract_int(&buf[4], 0);
 117                 WC->need_regi = extract_int(&buf[4], 1);
 118                 WC->need_vali = extract_int(&buf[4], 2);
 119                 extract_token(WC->cs_inet_email, &buf[4], 3, '|', sizeof WC->cs_inet_email);
 120         }
 121
 122         get_preference("current_iconbar", buf, sizeof buf);
 123         WC->current_iconbar = atoi(buf);
 124
 125         get_preference("floordiv_expanded", WC->floordiv_expanded, sizeof WC->floordiv_expanded);
 126 }
 127
 128
 129 /**
 130  * \brief Login Checks
 131  * the logics to detect invalid passwords not to get on citservers nerves
 132  */
 133 void do_login(void)
 134 {
 135         char buf[SIZ];
 136
 137         if (strlen(bstr("language")) > 0) {
 138                 set_selected_language(bstr("language"));
 139                 go_selected_language();
 140         }
 141
 142         if (strlen(bstr("exit_action")) > 0) {
 143                 do_logout();
 144                 return;
 145         }
 146         if (strlen(bstr("login_action")) > 0) {
 147                 serv_printf("USER %s", bstr("name"));
 148                 serv_getln(buf, sizeof buf);
 149                 if (buf[0] == '3') {
 150                         serv_printf("PASS %s", bstr("pass"));
 151                         serv_getln(buf, sizeof buf);
 152                         if (buf[0] == '2') {
 153                                 become_logged_in(bstr("name"),
 154                                                  bstr("pass"), buf);
 155                         } else {
 156                                 display_login(&buf[4]);
 157                                 return;
 158                         }
 159                 } else {
 160                         display_login(&buf[4]);
 161                         return;
 162                 }
 163         }
 164         if (strlen(bstr("newuser_action")) > 0) {
 165                 if (strlen(bstr("pass")) == 0) {
 166                         display_login(_("Blank passwords are not allowed."));
 167                         return;
 168                 }
 169                 serv_printf("NEWU %s", bstr("name"));
 170                 serv_getln(buf, sizeof buf);
 171                 if (buf[0] == '2') {
 172                         become_logged_in(bstr("name"), bstr("pass"), buf);
 173                         serv_printf("SETP %s", bstr("pass"));
 174                         serv_getln(buf, sizeof buf);
 175                 } else {
 176                         display_login(&buf[4]);
 177                         return;
 178                 }
 179         }
 180         if (WC->logged_in) {
 181                 if (WC->need_regi) {
 182                         display_reg(1);
 183                 } else {
 184                         do_welcome();
 185                 }
 186         } else {
 187                 display_login(_("Your password was not accepted."));
 188         }
 189
 190 }
 191
 192 /**
 193  * \brief display the user a welcome screen.
 194  * if this is the first time login, and the web based setup is enabled,
 195  * lead the user through the setup routines
 196  */
 197 void do_welcome(void)
 198 {
 199         char buf[SIZ];
 200 #ifdef XXX_NOT_FINISHED_YET_XXX
 201         FILE *fp;
 202         int i;
 203
 204         /**
 205          * See if we have to run the first-time setup wizard
 206          */
 207         if (WC->is_aide) {
 208                 if (!setup_wizard) {
 209                         sprintf(wizard_filename, "setupwiz.%s.%s",
 210                                 ctdlhost, ctdlport);
 211                         for (i=0; i<strlen(wizard_filename); ++i) {
 212                                 if (    (wizard_filename[i]==' ')
 213                                         || (wizard_filename[i] == '/')
 214                                 ) {
 215                                         wizard_filename[i] = '_';
 216                                 }
 217                         }
 218
 219                         fp = fopen(wizard_filename, "r");
 220                         if (fp != NULL) {
 221                                 fgets(buf, sizeof buf, fp);
 222                                 buf[strlen(buf)-1] = 0;
 223                                 fclose(fp);
 224                                 if (atoi(buf) == serv_info.serv_rev_level) {
 225                                         setup_wizard = 1; /**< already run */
 226                                 }
 227                         }
 228                 }
 229
 230                 if (!setup_wizard) {
 231                         http_redirect("setup_wizard");
 232                 }
 233         }
 234 #endif
 235
 236         /**
 237          * Go to the user's preferred start page
 238          */
 239         get_preference("startpage", buf, sizeof buf);
 240         if (strlen(buf)==0) {
 241                 safestrncpy(buf, "dotskip&room=_BASEROOM_", sizeof buf);
 242                 set_preference("startpage", buf, 1);
 243         }
 244         if (buf[0] == '/') {
 245                 strcpy(buf, &buf[1]);
 246         }
 247         http_redirect(buf);
 248 }
 249
 250
 251 /**
 252  * Disconnect from the Citadel server, and end this WebCit session
 253  */
 254 void end_webcit_session(void) {
 255         char buf[256];
 256
 257         if (WC->logged_in) {
 258                 sprintf(buf, "%d", WC->current_iconbar);
 259                 set_preference("current_iconbar", buf, 0);
 260                 set_preference("floordiv_expanded", WC->floordiv_expanded, 1);
 261         }
 262
 263         serv_puts("QUIT");
 264         WC->killthis = 1;
 265         /* close() of citadel socket will be done by do_housekeeping() */
 266 }
 267
 268 /**
 269  * execute the logout
 270  */
 271 void do_logout(void)
 272 {
 273         char buf[SIZ];
 274
 275         safestrncpy(WC->wc_username, "", sizeof WC->wc_username);
 276         safestrncpy(WC->wc_password, "", sizeof WC->wc_password);
 277         safestrncpy(WC->wc_roomname, "", sizeof WC->wc_roomname);
 278         safestrncpy(WC->wc_fullname, "", sizeof WC->wc_fullname);
 279
 280         /** Calling output_headers() this way causes the cookies to be un-set */
 281         output_headers(1, 1, 0, 1, 0, 0);
 282
 283         wprintf("<center>");
 284         serv_puts("MESG goodbye");
 285         serv_getln(buf, sizeof buf);
 286
 287         if (WC->serv_sock >= 0) {
 288                 if (buf[0] == '1') {
 289                         fmout("CENTER");
 290                 } else {
 291                         wprintf("Goodbye\n");
 292                 }
 293         }
 294         else {
 295                 wprintf(_("This program was unable to connect or stay "
 296                         "connected to the Citadel server.  Please report "
 297                         "this problem to your system administrator.")
 298                 );
 299         }
 300
 301         wprintf("<hr /><a href=\".\">");
 302         wprintf(_("Log in again"));
 303         wprintf("</A>&nbsp;&nbsp;&nbsp;"
 304                 "<a href=\"javascript:window.close();\">");
 305         wprintf(_("Close window"));
 306         wprintf("</a></center>\n");
 307         wDumpContent(2);
 308         end_webcit_session();
 309 }
 310
 311
 312 /* *
 313  * validate new users
 314  */
 315 void validate(void)
 316 {
 317         char cmd[SIZ];
 318         char user[SIZ];
 319         char buf[SIZ];
 320         int a;
 321
 322         output_headers(1, 1, 2, 0, 0, 0);
 323         wprintf("<div id=\"banner\">\n"
 324                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
 325                 "<SPAN CLASS=\"titlebar\">");
 326         wprintf(_("Validate new users"));
 327         wprintf("</SPAN></TD></TR></TABLE>\n</div>\n<div id=\"content\">\n");
 328
 329         /** If the user just submitted a validation, process it... */
 330         safestrncpy(buf, bstr("user"), sizeof buf);
 331         if (strlen(buf) > 0) {
 332                 if (strlen(bstr("axlevel")) > 0) {
 333                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 334                         serv_getln(buf, sizeof buf);
 335                         if (buf[0] != '2') {
 336                                 wprintf("<b>%s</b><br />\n", &buf[4]);
 337                         }
 338                 }
 339         }
 340
 341         /** Now see if any more users require validation. */
 342         serv_puts("GNUR");
 343         serv_getln(buf, sizeof buf);
 344         if (buf[0] == '2') {
 345                 wprintf("<b>");
 346                 wprintf(_("No users require validation at this time."));
 347                 wprintf("</b><br />\n");
 348                 wDumpContent(1);
 349                 return;
 350         }
 351         if (buf[0] != '3') {
 352                 wprintf("<b>%s</b><br />\n", &buf[4]);
 353                 wDumpContent(1);
 354                 return;
 355         }
 356
 357         wprintf("<div class=\"fix_scrollbar_bug\">"
 358                 "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
 359         wprintf("<center>");
 360
 361         safestrncpy(user, &buf[4], sizeof user);
 362         serv_printf("GREG %s", user);
 363         serv_getln(cmd, sizeof cmd);
 364         if (cmd[0] == '1') {
 365                 a = 0;
 366                 do {
 367                         serv_getln(buf, sizeof buf);
 368                         ++a;
 369                         if (a == 1)
 370                                 wprintf("#%s<br /><H1>%s</H1>",
 371                                         buf, &cmd[4]);
 372                         if (a == 2)
 373                                 wprintf("PW: %s<br />\n", buf);
 374                         if (a == 3)
 375                                 wprintf("%s<br />\n", buf);
 376                         if (a == 4)
 377                                 wprintf("%s<br />\n", buf);
 378                         if (a == 5)
 379                                 wprintf("%s, ", buf);
 380                         if (a == 6)
 381                                 wprintf("%s ", buf);
 382                         if (a == 7)
 383                                 wprintf("%s<br />\n", buf);
 384                         if (a == 8)
 385                                 wprintf("%s<br />\n", buf);
 386                         if (a == 9)
 387                                 wprintf(_("Current access level: %d (%s)\n"),
 388                                         atoi(buf), axdefs[atoi(buf)]);
 389                 } while (strcmp(buf, "000"));
 390         } else {
 391                 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 392         }
 393
 394         wprintf("<hr />");
 395         wprintf(_("Select access level for this user:"));
 396         wprintf("<br />\n");
 397         for (a = 0; a <= 6; ++a) {
 398                 wprintf("<a href=\"validate&user=");
 399                 urlescputs(user);
 400                 wprintf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 401                         a, axdefs[a]);
 402         }
 403         wprintf("<br />\n");
 404
 405         wprintf("</CENTER>\n");
 406         wprintf("</td></tr></table></div>\n");
 407         wDumpContent(1);
 408 }
 409
 410
 411
 412 /**
 413  * \brief Display form for registration.
 414  * (Set during_login to 1 if this registration is being performed during
 415  * new user login and will require chaining to the proper screen.)
 416  * \param during_login are we just in the login phase?
 417  */
 418 void display_reg(int during_login)
 419 {
 420         long vcard_msgnum;
 421
 422         if (goto_config_room() != 0) {
 423                 if (during_login) do_welcome();
 424                 else display_main_menu();
 425                 return;
 426         }
 427
 428         vcard_msgnum = locate_user_vcard(WC->wc_fullname, -1);
 429         if (vcard_msgnum < 0L) {
 430                 if (during_login) do_welcome();
 431                 else display_main_menu();
 432                 return;
 433         }
 434
 435         if (during_login) {
 436                 do_edit_vcard(vcard_msgnum, "1", "do_welcome");
 437         }
 438         else {
 439                 do_edit_vcard(vcard_msgnum, "1", "display_main_menu");
 440         }
 441
 442 }
 443
 444
 445
 446
 447 /**
 448  * display form for changing your password
 449  */
 450 void display_changepw(void)
 451 {
 452         char buf[SIZ];
 453
 454         output_headers(1, 1, 2, 0, 0, 0);
 455         wprintf("<div id=\"banner\">\n"
 456                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
 457                 "<SPAN CLASS=\"titlebar\">");
 458         wprintf(_("Change your password"));
 459         wprintf("</SPAN>"
 460                 "</TD></TR></TABLE>\n"
 461                 "</div>\n<div id=\"content\">\n"
 462         );
 463
 464         if (strlen(WC->ImportantMessage) > 0) {
 465                 do_template("beginbox_nt");
 466                 wprintf("<SPAN CLASS=\"errormsg\">"
 467                         "%s</SPAN><br />\n", WC->ImportantMessage);
 468                 do_template("endbox");
 469                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 470         }
 471
 472         wprintf("<div class=\"fix_scrollbar_bug\">"
 473                 "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
 474
 475         wprintf("<CENTER><br />");
 476         serv_puts("MESG changepw");
 477         serv_getln(buf, sizeof buf);
 478         if (buf[0] == '1') {
 479                 fmout("CENTER");
 480         }
 481
 482         wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 483         wprintf("<CENTER>"
 484                 "<table border=\"0\" cellspacing=\"5\" cellpadding=\"5\" "
 485                 "BGCOLOR=\"#EEEEEE\">"
 486                 "<TR><TD>");
 487         wprintf(_("Enter new password:"));
 488         wprintf("</TD>\n");
 489         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass1\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 490         wprintf("<TR><TD>");
 491         wprintf(_("Enter it again to confirm:"));
 492         wprintf("</TD>\n");
 493         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass2\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 494
 495         wprintf("</TABLE><br />\n");
 496         wprintf("<INPUT type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 497         wprintf("&nbsp;");
 498         wprintf("<INPUT type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 499         wprintf("</form></center>\n");
 500         wprintf("</td></tr></table></div>\n");
 501         wDumpContent(1);
 502 }
 503
 504 /**
 505  * \brief change password
 506  * if passwords match, propagate it to citserver.
 507  */
 508 void changepw(void)
 509 {
 510         char buf[SIZ];
 511         char newpass1[32], newpass2[32];
 512
 513         if (strlen(bstr("change_action")) == 0) {
 514                 safestrncpy(WC->ImportantMessage,
 515                         _("Cancelled.  Password was not changed."),
 516                         sizeof WC->ImportantMessage);
 517                 display_main_menu();
 518                 return;
 519         }
 520
 521         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 522         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 523
 524         if (strcasecmp(newpass1, newpass2)) {
 525                 safestrncpy(WC->ImportantMessage,
 526                         _("They don't match.  Password was not changed."),
 527                         sizeof WC->ImportantMessage);
 528                 display_changepw();
 529                 return;
 530         }
 531
 532         if (strlen(newpass1) == 0) {
 533                 safestrncpy(WC->ImportantMessage,
 534                         _("Blank passwords are not allowed."),
 535                         sizeof WC->ImportantMessage);
 536                 display_changepw();
 537                 return;
 538         }
 539
 540         serv_printf("SETP %s", newpass1);
 541         serv_getln(buf, sizeof buf);
 542         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 543         if (buf[0] == '2') {
 544                 safestrncpy(WC->wc_password, buf, sizeof WC->wc_password);
 545                 display_main_menu();
 546         }
 547         else {
 548                 display_changepw();
 549         }
 550 }
 551
 552
 553
 554 /** @} */