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