webcit/auth.c

   1 /*
   2  * $Id$
   3  *
   4  * Handles authentication of users to a Citadel server.
   5  *
   6  */
   7
   8 #include "webcit.h"
   9
  10 char *axdefs[] =
  11 {
  12         "Deleted",
  13         "New User",
  14         "Problem User",
  15         "Local User",
  16         "Network User",
  17         "Preferred User",
  18         "Aide"
  19 };
  20
  21 /*
  22  * Display the login screen
  23  */
  24 void display_login(char *mesg)
  25 {
  26         char buf[SIZ];
  27
  28         output_headers(1, 1, 2, 0, 0, 0);
  29         wprintf("<div style=\"position:absolute; top:20px; left:20px; right:20px\">\n");
  30
  31         if (mesg != NULL) if (strlen(mesg) > 0) {
  32                 stresc(buf, mesg, 0, 0);
  33                 svprintf("mesg", WCS_STRING, "%s", buf);
  34         }
  35
  36         svprintf("LOGIN_INSTRUCTIONS", WCS_STRING,
  37                 _("<ul>"
  38                 "<li><b>If you already have an account on %s</b>, "
  39                 "enter your user name and password and click &quot;Login.&quot; "
  40                 "<li><b>If you are a new user</b>, enter the name and password "
  41                 "you wish to use, "
  42                 "and click &quot;New User.&quot; "
  43                 "<li>Please log off properly when finished. "
  44                 "<li>You must use a browser that supports <i>frames</i> and "
  45                 "<i>cookies</i>. "
  46                 "<li>Also keep in mind that if your browser is "
  47                 "configured to block pop-up windows, you will not be able "
  48                 "to receive any instant messages.<br />"
  49                 "</ul>"),
  50                 serv_info.serv_humannode
  51         );
  52
  53         svprintf("LOGIN_BUTTON", WCS_STRING, "%s", _("Login"));
  54         svprintf("NEWUSER_BUTTON", WCS_STRING, "%s", _("New User"));
  55         svprintf("EXIT_BUTTON", WCS_STRING, "%s", _("Exit"));
  56         svprintf("hello", WCS_SERVCMD, "MESG hello");
  57         svprintf("BOXTITLE", WCS_STRING, _("%s - powered by Citadel"),
  58                 serv_info.serv_humannode);
  59
  60         do_template("login");
  61
  62         wDumpContent(2);
  63 }
  64
  65
  66
  67
  68 /*
  69  * This function needs to get called whenever the session changes from
  70  * not-logged-in to logged-in, either by an explicit login by the user or
  71  * by a timed-out session automatically re-establishing with a little help
  72  * from the browser cookie.  Either way, we need to load access controls and
  73  * preferences from the server.
  74  */
  75 void become_logged_in(char *user, char *pass, char *serv_response)
  76 {
  77         char buf[SIZ];
  78
  79         WC->logged_in = 1;
  80         extract_token(WC->wc_username, &serv_response[4], 0, '|', sizeof WC->wc_username);
  81         safestrncpy(WC->wc_password, pass, sizeof WC->wc_password);
  82         WC->axlevel = extract_int(&serv_response[4], 1);
  83         if (WC->axlevel >= 6) {
  84                 WC->is_aide = 1;
  85         }
  86
  87         load_preferences();
  88
  89         serv_puts("CHEK");
  90         serv_getln(buf, sizeof buf);
  91         if (buf[0] == '2') {
  92                 WC->new_mail = extract_int(&buf[4], 0);
  93                 WC->need_regi = extract_int(&buf[4], 1);
  94                 WC->need_vali = extract_int(&buf[4], 2);
  95                 extract_token(WC->cs_inet_email, &buf[4], 3, '|', sizeof WC->cs_inet_email);
  96         }
  97 }
  98
  99
 100 void do_login(void)
 101 {
 102         char buf[SIZ];
 103
 104         if (strlen(bstr("exit_action")) > 0) {
 105                 do_logout();
 106                 return;
 107         }
 108         if (strlen(bstr("login_action")) > 0) {
 109                 serv_printf("USER %s", bstr("name"));
 110                 serv_getln(buf, sizeof buf);
 111                 if (buf[0] == '3') {
 112                         serv_printf("PASS %s", bstr("pass"));
 113                         serv_getln(buf, sizeof buf);
 114                         if (buf[0] == '2') {
 115                                 become_logged_in(bstr("name"),
 116                                                  bstr("pass"), buf);
 117                         } else {
 118                                 display_login(&buf[4]);
 119                                 return;
 120                         }
 121                 } else {
 122                         display_login(&buf[4]);
 123                         return;
 124                 }
 125         }
 126         if (strlen(bstr("newuser_action")) > 0) {
 127                 if (strlen(bstr("pass")) == 0) {
 128                         display_login(_("Blank passwords are not allowed."));
 129                         return;
 130                 }
 131                 serv_printf("NEWU %s", bstr("name"));
 132                 serv_getln(buf, sizeof buf);
 133                 if (buf[0] == '2') {
 134                         become_logged_in(bstr("name"), bstr("pass"), buf);
 135                         serv_printf("SETP %s", bstr("pass"));
 136                         serv_getln(buf, sizeof buf);
 137                 } else {
 138                         display_login(&buf[4]);
 139                         return;
 140                 }
 141         }
 142         if (WC->logged_in) {
 143                 if (WC->need_regi) {
 144                         display_reg(1);
 145                 } else {
 146                         do_welcome();
 147                 }
 148         } else {
 149                 display_login(_("Your password was not accepted."));
 150         }
 151
 152 }
 153
 154 void do_welcome(void)
 155 {
 156         char buf[SIZ];
 157 #ifdef XXX_NOT_FINISHED_YET_XXX
 158         FILE *fp;
 159         int i;
 160
 161         /*
 162          * See if we have to run the first-time setup wizard
 163          */
 164         if (WC->is_aide) {
 165                 if (!setup_wizard) {
 166                         sprintf(wizard_filename, "setupwiz.%s.%s",
 167                                 ctdlhost, ctdlport);
 168                         for (i=0; i<strlen(wizard_filename); ++i) {
 169                                 if (    (wizard_filename[i]==' ')
 170                                         || (wizard_filename[i] == '/')
 171                                 ) {
 172                                         wizard_filename[i] = '_';
 173                                 }
 174                         }
 175
 176                         fp = fopen(wizard_filename, "r");
 177                         if (fp != NULL) {
 178                                 fgets(buf, sizeof buf, fp);
 179                                 buf[strlen(buf)-1] = 0;
 180                                 fclose(fp);
 181                                 if (atoi(buf) == serv_info.serv_rev_level) {
 182                                         setup_wizard = 1; /* already run */
 183                                 }
 184                         }
 185                 }
 186
 187                 if (!setup_wizard) {
 188                         http_redirect("/setup_wizard");
 189                 }
 190         }
 191 #endif
 192
 193         /*
 194          * Go to the user's preferred start page
 195          */
 196         get_preference("startpage", buf, sizeof buf);
 197         if (strlen(buf)==0) {
 198                 safestrncpy(buf, "/dotskip&room=_BASEROOM_", sizeof buf);
 199                 set_preference("startpage", buf, 1);
 200         }
 201         http_redirect(buf);
 202 }
 203
 204
 205 /*
 206  * Disconnect from the Citadel server, and end this WebCit session
 207  */
 208 void end_webcit_session(void) {
 209         serv_puts("QUIT");
 210         WC->killthis = 1;
 211         /* close() of citadel socket will be done by do_housekeeping() */
 212 }
 213
 214
 215 void do_logout(void)
 216 {
 217         char buf[SIZ];
 218
 219         safestrncpy(WC->wc_username, "", sizeof WC->wc_username);
 220         safestrncpy(WC->wc_password, "", sizeof WC->wc_password);
 221         safestrncpy(WC->wc_roomname, "", sizeof WC->wc_roomname);
 222
 223         /* Calling output_headers() this way causes the cookies to be un-set */
 224         output_headers(1, 1, 0, 1, 0, 0);
 225
 226         wprintf("<center>");
 227         serv_puts("MESG goodbye");
 228         serv_getln(buf, sizeof buf);
 229
 230         if (WC->serv_sock >= 0) {
 231                 if (buf[0] == '1') {
 232                         fmout("CENTER");
 233                 } else {
 234                         wprintf("Goodbye\n");
 235                 }
 236         }
 237         else {
 238                 wprintf(_("This program was unable to connect or stay "
 239                         "connected to the Citadel server.  Please report "
 240                         "this problem to your system administrator.")
 241                 );
 242         }
 243
 244         wprintf("<hr /><a href=\".\">Log in again</A>&nbsp;&nbsp;&nbsp;"
 245                 "<a href=\"javascript:window.close();\">");
 246         wprintf(_("Close window"));
 247         wprintf("</a></center>\n");
 248         wDumpContent(2);
 249         end_webcit_session();
 250 }
 251
 252
 253 /*
 254  * validate new users
 255  */
 256 void validate(void)
 257 {
 258         char cmd[SIZ];
 259         char user[SIZ];
 260         char buf[SIZ];
 261         int a;
 262
 263         output_headers(1, 1, 2, 0, 0, 0);
 264         wprintf("<div id=\"banner\">\n"
 265                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
 266                 "<SPAN CLASS=\"titlebar\">");
 267         wprintf(_("Validate new users"));
 268         wprintf("</SPAN></TD></TR></TABLE>\n</div>\n<div id=\"content\">\n");
 269
 270         safestrncpy(buf, bstr("user"), sizeof buf);
 271         if (strlen(buf) > 0)
 272                 if (strlen(bstr("axlevel")) > 0) {
 273                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 274                         serv_getln(buf, sizeof buf);
 275                         if (buf[0] != '2') {
 276                                 wprintf("<b>%s</b><br />\n", &buf[4]);
 277                         }
 278                 }
 279         serv_puts("GNUR");
 280         serv_getln(buf, sizeof buf);
 281
 282         if (buf[0] != '3') {
 283                 wprintf("<b>%s</b><br />\n", &buf[4]);
 284                 wDumpContent(1);
 285                 return;
 286         }
 287
 288         wprintf("<div id=\"fix_scrollbar_bug\">"
 289                 "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
 290         wprintf("<center>");
 291
 292         safestrncpy(user, &buf[4], sizeof user);
 293         serv_printf("GREG %s", user);
 294         serv_getln(cmd, sizeof cmd);
 295         if (cmd[0] == '1') {
 296                 a = 0;
 297                 do {
 298                         serv_getln(buf, sizeof buf);
 299                         ++a;
 300                         if (a == 1)
 301                                 wprintf("User #%s<br /><H1>%s</H1>",
 302                                         buf, &cmd[4]);
 303                         if (a == 2)
 304                                 wprintf("PW: %s<br />\n", buf);
 305                         if (a == 3)
 306                                 wprintf("%s<br />\n", buf);
 307                         if (a == 4)
 308                                 wprintf("%s<br />\n", buf);
 309                         if (a == 5)
 310                                 wprintf("%s, ", buf);
 311                         if (a == 6)
 312                                 wprintf("%s ", buf);
 313                         if (a == 7)
 314                                 wprintf("%s<br />\n", buf);
 315                         if (a == 8)
 316                                 wprintf("%s<br />\n", buf);
 317                         if (a == 9)
 318                                 wprintf(_("Current access level: %d (%s)\n"),
 319                                         atoi(buf), axdefs[atoi(buf)]);
 320                 } while (strcmp(buf, "000"));
 321         } else {
 322                 wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
 323         }
 324
 325         wprintf("<hr />");
 326         wprintf(_("Select access level for this user:"));
 327         wprintf("<br />\n");
 328         for (a = 0; a <= 6; ++a) {
 329                 wprintf("<a href=\"validate&user=");
 330                 urlescputs(user);
 331                 wprintf("&axlevel=%d\">%s</A>&nbsp;&nbsp;&nbsp;\n",
 332                         a, axdefs[a]);
 333         }
 334         wprintf("<br />\n");
 335
 336         wprintf("</CENTER>\n");
 337         wprintf("</td></tr></table></div>\n");
 338         wDumpContent(1);
 339 }
 340
 341
 342
 343 /*
 344  * Display form for registration.
 345  * (Set during_login to 1 if this registration is being performed during
 346  * new user login and will require chaining to the proper screen.)
 347  */
 348 void display_reg(int during_login)
 349 {
 350         long vcard_msgnum;
 351
 352         if (goto_config_room() != 0) {
 353                 if (during_login) do_welcome();
 354                 else display_main_menu();
 355                 return;
 356         }
 357
 358         vcard_msgnum = locate_user_vcard(WC->wc_username, -1);
 359         if (vcard_msgnum < 0L) {
 360                 if (during_login) do_welcome();
 361                 else display_main_menu();
 362                 return;
 363         }
 364
 365         if (during_login) {
 366                 do_edit_vcard(vcard_msgnum, "1", "/do_welcome");
 367         }
 368         else {
 369                 do_edit_vcard(vcard_msgnum, "1", "/display_main_menu");
 370         }
 371
 372 }
 373
 374
 375
 376
 377 /*
 378  * display form for changing your password
 379  */
 380 void display_changepw(void)
 381 {
 382         char buf[SIZ];
 383
 384         output_headers(1, 1, 2, 0, 0, 0);
 385         wprintf("<div id=\"banner\">\n"
 386                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
 387                 "<SPAN CLASS=\"titlebar\">");
 388         wprintf(_("Change your password"));
 389         wprintf("</SPAN>"
 390                 "</TD></TR></TABLE>\n"
 391                 "</div>\n<div id=\"content\">\n"
 392         );
 393
 394         if (strlen(WC->ImportantMessage) > 0) {
 395                 do_template("beginbox_nt");
 396                 wprintf("<SPAN CLASS=\"errormsg\">"
 397                         "%s</SPAN><br />\n", WC->ImportantMessage);
 398                 do_template("endbox");
 399                 safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 400         }
 401
 402         wprintf("<div id=\"fix_scrollbar_bug\">"
 403                 "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
 404
 405         wprintf("<CENTER><br />");
 406         serv_puts("MESG changepw");
 407         serv_getln(buf, sizeof buf);
 408         if (buf[0] == '1') {
 409                 fmout("CENTER");
 410         }
 411
 412         wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
 413         wprintf("<CENTER>"
 414                 "<table border=\"0\" cellspacing=\"5\" cellpadding=\"5\" "
 415                 "BGCOLOR=\"#EEEEEE\">"
 416                 "<TR><TD>");
 417         wprintf(_("Enter new password:"));
 418         wprintf("</TD>\n");
 419         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass1\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 420         wprintf("<TR><TD>");
 421         wprintf(_("Enter it again to confirm:"));
 422         wprintf("</TD>\n");
 423         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass2\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 424
 425         wprintf("</TABLE><br />\n");
 426         wprintf("<INPUT type=\"submit\" name=\"change_action\" value=\"%s\">", _("Change password"));
 427         wprintf("&nbsp;");
 428         wprintf("<INPUT type=\"submit\" name=\"cancel_action\" value=\"%s\">\n", _("Cancel"));
 429         wprintf("</form></center>\n");
 430         wprintf("</td></tr></table></div>\n");
 431         wDumpContent(1);
 432 }
 433
 434 /*
 435  * change password
 436  */
 437 void changepw(void)
 438 {
 439         char buf[SIZ];
 440         char newpass1[32], newpass2[32];
 441
 442         if (strlen(bstr("change_action")) == 0) {
 443                 safestrncpy(WC->ImportantMessage,
 444                         _("Cancelled.  Password was not changed."),
 445                         sizeof WC->ImportantMessage);
 446                 display_main_menu();
 447                 return;
 448         }
 449
 450         safestrncpy(newpass1, bstr("newpass1"), sizeof newpass1);
 451         safestrncpy(newpass2, bstr("newpass2"), sizeof newpass2);
 452
 453         if (strcasecmp(newpass1, newpass2)) {
 454                 safestrncpy(WC->ImportantMessage,
 455                         _("They don't match.  Password was not changed."),
 456                         sizeof WC->ImportantMessage);
 457                 display_changepw();
 458                 return;
 459         }
 460
 461         if (strlen(newpass1) == 0) {
 462                 safestrncpy(WC->ImportantMessage,
 463                         _("Blank passwords are not allowed."),
 464                         sizeof WC->ImportantMessage);
 465                 display_changepw();
 466                 return;
 467         }
 468
 469         serv_printf("SETP %s", newpass1);
 470         serv_getln(buf, sizeof buf);
 471         sprintf(WC->ImportantMessage, "%s", &buf[4]);
 472         if (buf[0] == '2') {
 473                 safestrncpy(WC->wc_password, buf, sizeof WC->wc_password);
 474                 display_main_menu();
 475         }
 476         else {
 477                 display_changepw();
 478         }
 479 }