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