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