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, "_top");
  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(1);
  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                         need_regi = extract_int(&buf[4], 1);
 162                         /* FIX also check for new mail etc. here */
 163                 }
 164                 if (need_regi) {
 165                         display_reg(1);
 166                 } else {
 167                         do_welcome();
 168                 }
 169         } else {
 170                 display_login("Your password was not accepted.");
 171         }
 172
 173 }
 174
 175 void do_welcome(void)
 176 {
 177
 178         if (noframes) {
 179                 printf("HTTP/1.0 200 OK\n");
 180                 output_headers(1, "_top");
 181                 wprintf("<CENTER><H1>");
 182                 escputs(wc_username);
 183                 wprintf("</H1>\n");
 184                 /* FIX add user stats here */
 185                 wDumpContent(1);
 186         } else {
 187                 output_static("frameset.html");
 188         }
 189 }
 190
 191
 192 void do_logout(void)
 193 {
 194         char buf[256];
 195
 196         strcpy(wc_username, "");
 197         strcpy(wc_password, "");
 198         strcpy(wc_roomname, "");
 199
 200         printf("HTTP/1.0 200 OK\n");
 201         output_headers(2, "_top");      /* note "2" causes cookies to be unset */
 202
 203         wprintf("<CENTER>");
 204         serv_puts("MESG goodbye");
 205         serv_gets(buf);
 206
 207         if (buf[0] == '1')
 208                 fmout(NULL);
 209         else
 210                 wprintf("Goodbye\n");
 211
 212         wprintf("<HR><A HREF=\"/\">Log in again</A></CENTER>\n");
 213         wDumpContent(2);
 214         serv_puts("QUIT");
 215         exit(0);
 216 }
 217
 218
 219
 220
 221
 222 /*
 223  * validate new users
 224  */
 225 void validate(void)
 226 {
 227         char cmd[256];
 228         char user[256];
 229         char buf[256];
 230         int a;
 231
 232         printf("HTTP/1.0 200 OK\n");
 233         output_headers(1, "bottom");
 234
 235         strcpy(buf, bstr("user"));
 236         if (strlen(buf) > 0)
 237                 if (strlen(bstr("axlevel")) > 0) {
 238                         serv_printf("VALI %s|%s", buf, bstr("axlevel"));
 239                         serv_gets(buf);
 240                         if (buf[0] != '2') {
 241                                 wprintf("<EM>%s</EM><BR>\n", &buf[4]);
 242                         }
 243                 }
 244         serv_puts("GNUR");
 245         serv_gets(buf);
 246
 247         if (buf[0] != '3') {
 248                 wprintf("<EM>%s</EM><BR>\n", &buf[4]);
 249                 wDumpContent(1);
 250                 return;
 251         }
 252         strcpy(user, &buf[4]);
 253         serv_printf("GREG %s", user);
 254         serv_gets(cmd);
 255         if (cmd[0] == '1') {
 256                 a = 0;
 257                 do {
 258                         serv_gets(buf);
 259                         ++a;
 260                         if (a == 1)
 261                                 wprintf("User #%s<BR><H1>%s</H1>",
 262                                         buf, &cmd[4]);
 263                         if (a == 2)
 264                                 wprintf("PW: %s<BR>\n", buf);
 265                         if (a == 3)
 266                                 wprintf("%s<BR>\n", buf);
 267                         if (a == 4)
 268                                 wprintf("%s<BR>\n", buf);
 269                         if (a == 5)
 270                                 wprintf("%s, ", buf);
 271                         if (a == 6)
 272                                 wprintf("%s ", buf);
 273                         if (a == 7)
 274                                 wprintf("%s<BR>\n", buf);
 275                         if (a == 8)
 276                                 wprintf("%s<BR>\n", buf);
 277                         if (a == 9)
 278                                 wprintf("Current access level: %d (%s)\n",
 279                                         atoi(buf), axdefs[atoi(buf)]);
 280                 } while (strcmp(buf, "000"));
 281         } else {
 282                 wprintf("<H1>%s</H1>%s<BR>\n", user, &cmd[4]);
 283         }
 284
 285         wprintf("<CENTER><TABLE border><CAPTION>Select access level:");
 286         wprintf("</CAPTION><TR>");
 287         for (a = 0; a <= 6; ++a) {
 288                 wprintf(
 289                                "<TD><A HREF=\"/validate&user=%s&axlevel=%d\">%s</A></TD>\n",
 290                                urlesc(user), a, axdefs[a]);
 291         }
 292         wprintf("</TR></TABLE><CENTER><BR>\n");
 293         wDumpContent(1);
 294 }
 295
 296
 297
 298
 299
 300
 301 /*
 302  * Display form for registration.
 303  * (Set during_login to 1 if this registration is being performed during
 304  * new user login and will require chaining to the proper screen.)
 305  */
 306 void display_reg(int during_login)
 307 {
 308         char buf[256];
 309         int a;
 310
 311         printf("HTTP/1.0 200 OK\n");
 312         output_headers(1, "bottom");
 313
 314         wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=007700><TR><TD>");
 315         wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
 316         wprintf("<B>Enter registration info</B>\n");
 317         wprintf("</FONT></TD></TR></TABLE>\n");
 318
 319         wprintf("<CENTER>");
 320         serv_puts("MESG register");
 321         serv_gets(buf);
 322         if (buf[0] == '1')
 323                 fmout(NULL);
 324
 325         wprintf("<FORM ACTION=\"/register\" METHOD=\"POST\">\n");
 326         wprintf("<INPUT TYPE=\"hidden\" NAME=\"during_login\" VALUE=\"%d\">\n", during_login);
 327
 328         serv_puts("GREG _SELF_");
 329         serv_gets(buf);
 330         if (buf[0] != '1') {
 331                 wprintf("<EM>%s</EM><BR>\n", &buf[4]);
 332         } else {
 333
 334                 wprintf("<H1>%s</H1><TABLE border>\n", &buf[4]);
 335                 a = 0;
 336                 while (serv_gets(buf), strcmp(buf, "000")) {
 337                         ++a;
 338                         wprintf("<TR><TD>");
 339                         switch (a) {
 340                         case 3:
 341                                 wprintf("Real Name:</TD><TD><INPUT TYPE=\"text\" NAME=\"realname\" VALUE=\"%s\" MAXLENGTH=\"29\"><BR>\n", buf);
 342                                 break;
 343                         case 4:
 344                                 wprintf("Street Address:</TD><TD><INPUT TYPE=\"text\" NAME=\"address\" VALUE=\"%s\" MAXLENGTH=\"24\"><BR>\n", buf);
 345                                 break;
 346                         case 5:
 347                                 wprintf("City/town:</TD><TD><INPUT TYPE=\"text\" NAME=\"city\" VALUE=\"%s\" MAXLENGTH=\"14\"><BR>\n", buf);
 348                                 break;
 349                         case 6:
 350                                 wprintf("State/province:</TD><TD><INPUT TYPE=\"text\" NAME=\"state\" VALUE=\"%s\" MAXLENGTH=\"2\"><BR>\n", buf);
 351                                 break;
 352                         case 7:
 353                                 wprintf("ZIP code:</TD><TD><INPUT TYPE=\"text\" NAME=\"zip\" VALUE=\"%s\" MAXLENGTH=\"10\"><BR>\n", buf);
 354                                 break;
 355                         case 8:
 356                                 wprintf("Telephone:</TD><TD><INPUT TYPE=\"text\" NAME=\"phone\" VALUE=\"%s\" MAXLENGTH=\"14\"><BR>\n", buf);
 357                                 break;
 358                         case 9:
 359                                 wprintf("E-Mail:</TD><TD><INPUT TYPE=\"text\" NAME=\"email\" VALUE=\"%s\" MAXLENGTH=\"31\"><BR>\n", buf);
 360                                 break;
 361                         }
 362                         wprintf("</TD></TR>\n");
 363                 }
 364                 wprintf("</TABLE><P>");
 365         }
 366         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Register\">\n");
 367         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Cancel\">\n");
 368         wprintf("</CENTER>\n");
 369         wDumpContent(1);
 370 }
 371
 372 /*
 373  * register
 374  */
 375 void register_user(void)
 376 {
 377         char buf[256];
 378
 379         if (strcmp(bstr("action"), "Register")) {
 380                 display_error("Cancelled.  Registration was not saved.");
 381                 return;
 382         }
 383         serv_puts("REGI");
 384         serv_gets(buf);
 385         if (buf[0] != '4') {
 386                 display_error(&buf[4]);
 387         }
 388         serv_puts(bstr("realname"));
 389         serv_puts(bstr("address"));
 390         serv_puts(bstr("city"));
 391         serv_puts(bstr("state"));
 392         serv_puts(bstr("zip"));
 393         serv_puts(bstr("phone"));
 394         serv_puts(bstr("email"));
 395         serv_puts("000");
 396
 397         if (atoi(bstr("during_login"))) {
 398                 do_welcome();
 399         } else {
 400                 display_error("Registration information has been saved.");
 401         }
 402 }
 403
 404
 405
 406
 407
 408 /*
 409  * display form for changing your password
 410  */
 411 void display_changepw(void)
 412 {
 413         char buf[256];
 414
 415         printf("HTTP/1.0 200 OK\n");
 416         output_headers(1, "bottom");
 417
 418         wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=770000><TR><TD>");
 419         wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
 420         wprintf("<B>Change your password</B>\n");
 421         wprintf("</FONT></TD></TR></TABLE>\n");
 422
 423         wprintf("<CENTER>");
 424         serv_puts("MESG changepw");
 425         serv_gets(buf);
 426         if (buf[0] == '1')
 427                 fmout(NULL);
 428
 429         wprintf("<FORM ACTION=\"changepw\" METHOD=\"POST\">\n");
 430         wprintf("<CENTER><TABLE border><TR><TD>Enter new password:</TD>\n");
 431         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass1\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 432         wprintf("<TR><TD>Enter it again to confirm:</TD>\n");
 433         wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass2\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
 434         wprintf("</TABLE>\n");
 435         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Change\">\n");
 436         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Cancel\">\n");
 437         wprintf("</CENTER>\n");
 438         wDumpContent(1);
 439 }
 440
 441 /*
 442  * change password
 443  */
 444 void changepw(void)
 445 {
 446         char buf[256];
 447         char newpass1[32], newpass2[32];
 448
 449         if (strcmp(bstr("action"), "Change")) {
 450                 display_error("Cancelled.  Password was not changed.");
 451                 return;
 452         }
 453         strcpy(newpass1, bstr("newpass1"));
 454         strcpy(newpass2, bstr("newpass2"));
 455
 456         if (strcasecmp(newpass1, newpass2)) {
 457                 display_error("They don't match.  Password was not changed.");
 458                 return;
 459         }
 460         serv_printf("SETP %s", newpass1);
 461         serv_gets(buf);
 462         if (buf[0] == '2')
 463                 display_success(&buf[4]);
 464         else
 465                 display_error(&buf[4]);
 466 }