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