webcit/auth.c

   1 /*
   2  * auth.c
   3  *
   4  * This file contains code which relates to authentication of users to Citadel.
   5  *
   6  * $Id$
   7  */
   8
   9 #include <stdlib.h>
  10 #ifdef HAVE_UNISTD_H
  11 #include <unistd.h>
  12 #endif
  13 #include <stdio.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <errno.h>
  17 #include "webcit.h"
  18 #include "child.h"
  19
  20 char *axdefs[] =
  21 {
  22         "Deleted",
  23         "New User",
  24         "Problem User",
  25         "Local User",
  26         "Network User",
  27         "Preferred User",
  28         "Aide"
  29 };
  30
  31 /*
  32  * Display the login screen
  33  */
  34 void display_login(char *mesg)
  35 {
  36         char buf[256];
  37
  38         printf("HTTP/1.0 200 OK\n");
  39         output_headers(1);
  40
  41         /* Da banner */
  42         wprintf("<CENTER><TABLE border=0 width=100%><TR><TD>\n");
  43         wprintf("<IMG SRC=\"/image&name=hello\">");
  44         wprintf("</TD><TD><CENTER>\n");
  45
  46         if (mesg != NULL) {
  47                 wprintf("<font size=+1><b>%s</b></font>", mesg);
  48         } else {
  49                 serv_puts("MESG hello");
  50                 serv_gets(buf);
  51                 if (buf[0] == '1')
  52                         fmout(NULL);
  53         }
  54
  55         wprintf("</CENTER></TD></TR></TABLE></CENTER>\n");
  56         wprintf("<HR>\n");
  57
  58         /* Da login box */
  59         wprintf("<CENTER><FORM ACTION=\"/login\" METHOD=\"POST\">\n");
  60         wprintf("<TABLE border><TR>\n");
  61         wprintf("<TD>User Name:</TD>\n");
  62         wprintf("<TD><INPUT TYPE=\"text\" NAME=\"name\" MAXLENGTH=\"25\">\n");
  63         wprintf("</TD></TR><TR>\n");
  64         wprintf("<TD>Password:</TD>\n");
  65         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"pass\" MAXLENGTH=\"20\"></TD>\n");
  66         wprintf("</TR></TABLE>\n");
  67         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Login\">\n");
  68         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"New User\">\n");
  69         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Exit\">\n");
  70
  71         /* Only offer the "check to disable frames" selection if frames haven't
  72          * already been disabled by the browser braindamage check.
  73          */
  74         if (noframes == 0) {
  75                 wprintf("<BR><INPUT TYPE=\"checkbox\" NAME=\"noframes\">");
  76                 wprintf("<FONT SIZE=-1>&nbsp;Check here to disable frames</FONT>\n");
  77                 wprintf("</FORM></CENTER>\n");
  78         }
  79
  80         /* Da instructions */
  81         wprintf("<LI><EM>If you already have an account on %s,",
  82                 serv_info.serv_humannode);
  83         wprintf("</EM> enter your user name\n");
  84         wprintf("and password and click \"<TT>Login</TT>.\"<BR>\n");
  85         wprintf("<LI><EM>If you are a new user,</EM>\n");
  86         wprintf("enter the name and password you wish to use, and click\n");
  87         wprintf("\"New User.\"<BR><LI>");
  88         wprintf("<EM>Please log off properly when finished.</EM>");
  89         wprintf("<LI>You must use a browser that supports <i>cookies</i>.<BR>\n");
  90         wprintf("</EM></UL>\n");
  91
  92         wDumpContent(0);        /* No menu here; not logged in yet! */
  93 }
  94
  95
  96
  97
  98 /*
  99  * This function needs to get called whenever a PASS or NEWU succeeds.
 100  */
 101 void become_logged_in(char *user, char *pass, char *serv_response)
 102 {
 103         logged_in = 1;
 104         extract(wc_username, &serv_response[4], 0);
 105         strcpy(wc_password, pass);
 106         axlevel = extract_int(&serv_response[4], 1);
 107         if (axlevel >= 6)
 108                 is_aide = 1;
 109 }
 110
 111
 112 void do_login(void)
 113 {
 114         char buf[256];
 115         int need_regi = 0;
 116
 117
 118         /* Note that the initial value of noframes is set by the browser braindamage
 119          * check, so don't add an "else" clause here.
 120          */
 121         if (!strcasecmp(bstr("noframes"), "on"))
 122                 noframes = 1;
 123
 124         if (!strcasecmp(bstr("action"), "Exit")) {
 125                 do_logout();
 126         }
 127         if (!strcasecmp(bstr("action"), "Login")) {
 128                 serv_printf("USER %s", bstr("name"));
 129                 serv_gets(buf);
 130                 if (buf[0] == '3') {
 131                         serv_printf("PASS %s", bstr("pass"));
 132                         serv_gets(buf);
 133                         if (buf[0] == '2') {
 134                                 become_logged_in(bstr("name"),
 135                                                  bstr("pass"), buf);
 136                         } else {
 137                                 display_login(&buf[4]);
 138                                 return;
 139                         }
 140                 } else {
 141                         display_login(&buf[4]);
 142                         return;
 143                 }
 144         }
 145         if (!strcasecmp(bstr("action"), "New User")) {
 146                 serv_printf("NEWU %s", bstr("name"));
 147                 serv_gets(buf);
 148                 if (buf[0] == '2') {
 149                         become_logged_in(bstr("name"), bstr("pass"), buf);
 150                         serv_printf("SETP %s", bstr("pass"));
 151                         serv_gets(buf);
 152                 } else {
 153                         display_login(&buf[4]);
 154                         return;
 155                 }
 156         }
 157         if (logged_in) {
 158                 serv_puts("CHEK");
 159                 serv_gets(buf);
 160                 if (buf[0] == '2') {
 161                         new_mail = extract_int(&buf[4], 0);
 162                         need_regi = extract_int(&buf[4], 1);
 163                         need_vali = extract_int(&buf[4], 2);
 164                 }
 165                 if (need_regi) {
 166                         display_reg(1);
 167                 } else {
 168                         do_welcome();
 169                 }
 170         } else {
 171                 display_login("Your password was not accepted.");
 172         }
 173
 174 }
 175
 176 void do_welcome(void)
 177 {
 178
 179         if (noframes) {
 180                 smart_goto("_BASEROOM_");
 181         } else {
 182                 output_static("frameset.html");
 183         }
 184 }
 185
 186
 187 void do_logout(void)
 188 {
 189         char buf[256];
 190
 191         strcpy(wc_username, "");
 192         strcpy(wc_password, "");
 193         strcpy(wc_roomname, "");
 194
 195         printf("HTTP/1.0 200 OK\n");
 196         output_headers(2);      /* note "2" causes cookies to be unset */
 197
 198         wprintf("<CENTER>");
 199         serv_puts("MESG goodbye");
 200         serv_gets(buf);
 201
 202         if (buf[0] == '1')
 203                 fmout(NULL);
 204         else
 205                 wprintf("Goodbye\n");
 206
 207         wprintf("<HR><A HREF=\"/\">Log in again</A></CENTER>\n");
 208         wDumpContent(2);
 209         serv_puts("QUIT");
 210         exit(0);
 211 }
 212
 213
 214
 215
 216
 217 /*
 218  * validate new users
 219  */
 220 void validate(void)
 221 {
 222         char cmd[256];
 223         char user[256];
 224         char buf[256];
 225         int a;
 226
 227         printf("HTTP/1.0 200 OK\n");
 228         output_headers(1);
 229
 230         strcpy(buf, bstr("user"));
 231         if (strlen(buf) > 0)
 232                 if (strlen(bstr("axlevel")) > 0) {
 233                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 234                         serv_gets(buf);
 235                         if (buf[0] != '2') {
 236                                 wprintf("<EM>%s</EM><BR>\n", &buf[4]);
 237                         }
 238                 }
 239         serv_puts("GNUR");
 240         serv_gets(buf);
 241
 242         if (buf[0] != '3') {
 243                 wprintf("<EM>%s</EM><BR>\n", &buf[4]);
 244                 wDumpContent(1);
 245                 return;
 246         }
 247         strcpy(user, &buf[4]);
 248         serv_printf("GREG %s", user);
 249         serv_gets(cmd);
 250         if (cmd[0] == '1') {
 251                 a = 0;
 252                 do {
 253                         serv_gets(buf);
 254                         ++a;
 255                         if (a == 1)
 256                                 wprintf("User #%s<BR><H1>%s</H1>",
 257                                         buf, &cmd[4]);
 258                         if (a == 2)
 259                                 wprintf("PW: %s<BR>\n", buf);
 260                         if (a == 3)
 261                                 wprintf("%s<BR>\n", buf);
 262                         if (a == 4)
 263                                 wprintf("%s<BR>\n", buf);
 264                         if (a == 5)
 265                                 wprintf("%s, ", buf);
 266                         if (a == 6)
 267                                 wprintf("%s ", buf);
 268                         if (a == 7)
 269                                 wprintf("%s<BR>\n", buf);
 270                         if (a == 8)
 271                                 wprintf("%s<BR>\n", buf);
 272                         if (a == 9)
 273                                 wprintf("Current access level: %d (%s)\n",
 274                                         atoi(buf), axdefs[atoi(buf)]);
 275                 } while (strcmp(buf, "000"));
 276         } else {
 277                 wprintf("<H1>%s</H1>%s<BR>\n", user, &cmd[4]);
 278         }
 279
 280         wprintf("<CENTER><TABLE border><CAPTION>Select access level:");
 281         wprintf("</CAPTION><TR>");
 282         for (a = 0; a <= 6; ++a) {
 283                 wprintf(
 284                                "<TD><A HREF=\"/validate&user=%s&axlevel=%d\">%s</A></TD>\n",
 285                                urlesc(user), a, axdefs[a]);
 286         }
 287         wprintf("</TR></TABLE><CENTER><BR>\n");
 288         wDumpContent(1);
 289 }
 290
 291
 292
 293
 294
 295
 296 /*
 297  * Display form for registration.
 298  * (Set during_login to 1 if this registration is being performed during
 299  * new user login and will require chaining to the proper screen.)
 300  */
 301 void display_reg(int during_login)
 302 {
 303         char buf[256];
 304         int a;
 305
 306         printf("HTTP/1.0 200 OK\n");
 307         output_headers(1);
 308
 309         wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=007700><TR><TD>");
 310         wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
 311         wprintf("<B>Enter registration info</B>\n");
 312         wprintf("</FONT></TD></TR></TABLE>\n");
 313
 314         wprintf("<CENTER>");
 315         serv_puts("MESG register");
 316         serv_gets(buf);
 317         if (buf[0] == '1')
 318                 fmout(NULL);
 319
 320         wprintf("<FORM ACTION=\"/register\" METHOD=\"POST\">\n");
 321         wprintf("<INPUT TYPE=\"hidden\" NAME=\"during_login\" VALUE=\"%d\">\n", during_login);
 322
 323         serv_puts("GREG _SELF_");
 324         serv_gets(buf);
 325         if (buf[0] != '1') {
 326                 wprintf("<EM>%s</EM><BR>\n", &buf[4]);
 327         } else {
 328
 329                 wprintf("<H1>%s</H1><TABLE border>\n", &buf[4]);
 330                 a = 0;
 331                 while (serv_gets(buf), strcmp(buf, "000")) {
 332                         ++a;
 333                         wprintf("<TR><TD>");
 334                         switch (a) {
 335                         case 3:
 336                                 wprintf("Real Name:</TD><TD><INPUT TYPE=\"text\" NAME=\"realname\" VALUE=\"%s\" MAXLENGTH=\"29\"><BR>\n", buf);
 337                                 break;
 338                         case 4:
 339                                 wprintf("Street Address:</TD><TD><INPUT TYPE=\"text\" NAME=\"address\" VALUE=\"%s\" MAXLENGTH=\"24\"><BR>\n", buf);
 340                                 break;
 341                         case 5:
 342                                 wprintf("City/town:</TD><TD><INPUT TYPE=\"text\" NAME=\"city\" VALUE=\"%s\" MAXLENGTH=\"14\"><BR>\n", buf);
 343                                 break;
 344                         case 6:
 345                                 wprintf("State/province:</TD><TD><INPUT TYPE=\"text\" NAME=\"state\" VALUE=\"%s\" MAXLENGTH=\"2\"><BR>\n", buf);
 346                                 break;
 347                         case 7:
 348                                 wprintf("ZIP code:</TD><TD><INPUT TYPE=\"text\" NAME=\"zip\" VALUE=\"%s\" MAXLENGTH=\"10\"><BR>\n", buf);
 349                                 break;
 350                         case 8:
 351                                 wprintf("Telephone:</TD><TD><INPUT TYPE=\"text\" NAME=\"phone\" VALUE=\"%s\" MAXLENGTH=\"14\"><BR>\n", buf);
 352                                 break;
 353                         case 9:
 354                                 wprintf("E-Mail:</TD><TD><INPUT TYPE=\"text\" NAME=\"email\" VALUE=\"%s\" MAXLENGTH=\"31\"><BR>\n", buf);
 355                                 break;
 356                         }
 357                         wprintf("</TD></TR>\n");
 358                 }
 359                 wprintf("</TABLE><P>");
 360         }
 361         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Register\">\n");
 362         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Cancel\">\n");
 363         wprintf("</CENTER>\n");
 364         wDumpContent(1);
 365 }
 366
 367 /*
 368  * register
 369  */
 370 void register_user(void)
 371 {
 372         char buf[256];
 373
 374         if (strcmp(bstr("action"), "Register")) {
 375                 display_error("Cancelled.  Registration was not saved.");
 376                 return;
 377         }
 378         serv_puts("REGI");
 379         serv_gets(buf);
 380         if (buf[0] != '4') {
 381                 display_error(&buf[4]);
 382         }
 383         serv_puts(bstr("realname"));
 384         serv_puts(bstr("address"));
 385         serv_puts(bstr("city"));
 386         serv_puts(bstr("state"));
 387         serv_puts(bstr("zip"));
 388         serv_puts(bstr("phone"));
 389         serv_puts(bstr("email"));
 390         serv_puts("000");
 391
 392         if (atoi(bstr("during_login"))) {
 393                 do_welcome();
 394         } else {
 395                 display_error("Registration information has been saved.");
 396         }
 397 }
 398
 399
 400
 401
 402
 403 /*
 404  * display form for changing your password
 405  */
 406 void display_changepw(void)
 407 {
 408         char buf[256];
 409
 410         printf("HTTP/1.0 200 OK\n");
 411         output_headers(1);
 412
 413         wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=770000><TR><TD>");
 414         wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
 415         wprintf("<B>Change your password</B>\n");
 416         wprintf("</FONT></TD></TR></TABLE>\n");
 417
 418         wprintf("<CENTER>");
 419         serv_puts("MESG changepw");
 420         serv_gets(buf);
 421         if (buf[0] == '1')
 422                 fmout(NULL);
 423
 424         wprintf("<FORM ACTION=\"changepw\" METHOD=\"POST\">\n");
 425         wprintf("<CENTER><TABLE border><TR><TD>Enter new password:</TD>\n");
 426         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass1\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 427         wprintf("<TR><TD>Enter it again to confirm:</TD>\n");
 428         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass2\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 429         wprintf("</TABLE>\n");
 430         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Change\">\n");
 431         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Cancel\">\n");
 432         wprintf("</CENTER>\n");
 433         wDumpContent(1);
 434 }
 435
 436 /*
 437  * change password
 438  */
 439 void changepw(void)
 440 {
 441         char buf[256];
 442         char newpass1[32], newpass2[32];
 443
 444         if (strcmp(bstr("action"), "Change")) {
 445                 display_error("Cancelled.  Password was not changed.");
 446                 return;
 447         }
 448         strcpy(newpass1, bstr("newpass1"));
 449         strcpy(newpass2, bstr("newpass2"));
 450
 451         if (strcasecmp(newpass1, newpass2)) {
 452                 display_error("They don't match.  Password was not changed.");
 453                 return;
 454         }
 455         serv_printf("SETP %s", newpass1);
 456         serv_gets(buf);
 457         if (buf[0] == '2')
 458                 display_success(&buf[4]);
 459         else
 460                 display_error(&buf[4]);
 461 }