webcit/auth.c

   1 /*
   2  * auth.c
   3  *
   4  * This file contains code which relates to authentication of users to Citadel.
   5  *
   6  */
   7
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <stdio.h>
  11 #include <ctype.h>
  12 #include <string.h>
  13 #include <errno.h>
  14 #include "webcit.h"
  15
  16 void display_login_page() {
  17
  18         printf("HTTP/1.0 200 OK\n");
  19         output_headers();
  20
  21         wprintf("<HTML><HEAD><TITLE>Please log in</TITLE></HEAD><BODY>\n");
  22         wprintf("<TABLE border=0><TR><TD>\n");
  23         wprintf("<IMG SRC=\"/static/velma.gif\">\n");
  24         wprintf("</TD><TD>");
  25         wprintf("<H1>&quot;Velma&quot;</H1><H2>(next generation WebCit)</H2>");
  26         wprintf("Please log in...<BR>\n");
  27
  28
  29         wprintf("<FORM ACTION=\"/login\" METHOD=\"POST\">\n");
  30         wprintf("<TABLE border><TR><TD>");
  31         wprintf("User Name:</TD><TD><INPUT TYPE=\"text\" NAME=\"name\" MAXLENGTH=\"25\"   >\n");
  32         wprintf("</TD></TR><TD>");
  33         wprintf("Password:</TD><TD><INPUT TYPE=\"password\" NAME=\"pass\" MAXLENGTH=\"20\">");
  34         wprintf("</TD></TR></TABLE>\n");
  35         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Login\">\n");
  36         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"New User\">\n");
  37         wprintf("<INPUT type=\"submit\" NAME=\"action\" VALUE=\"Exit\">\n");
  38         wprintf("</FORM>\n");
  39
  40         wprintf("</TD></TR></TABLE>\n");
  41         wprintf("</BODY></HTML>\n");
  42
  43         wDumpContent();
  44         }
  45
  46
  47
  48
  49 void output_frameset() {
  50         printf("HTTP/1.0 200 OK\n");
  51         output_headers();
  52
  53         wprintf("<HTML><HEAD><TITLE>FrameSet</TITLE></HEAD>\n");
  54         wprintf("<FRAMESET cols=\"15%, 80%\">\n");
  55         wprintf("  <FRAME name=\"left\" src=\"/static/velma.gif\">\n");
  56         wprintf("  <FRAME name=\"right\" src=\"/display_main_menu\">\n");
  57         wprintf("<NOFRAMES>\n");
  58         wprintf("Your browser doesn't support frames.<BR>\n");
  59         wprintf("This site uses frames.<BR>\n");
  60         wprintf("Therefore, you cannot view this site.<BR>\n");
  61         wprintf("Perhaps you should telnet instead?<BR>\n");
  62         wprintf("</NOFRAMES>\n");
  63         wprintf("</FRAMESET></HTML>\n");
  64         wDumpContent();
  65         }
  66
  67
  68 /*
  69  * This function needs to get called whenever a PASS or NEWU succeeds
  70  */
  71 void become_logged_in(char *user, char *pass, char *serv_response) {
  72
  73         logged_in = 1;
  74         strcpy(wc_username, user);
  75         strcpy(wc_password, pass);
  76
  77         }
  78
  79
  80 void do_login() {
  81         char buf[256];
  82
  83         if (!strcasecmp(bstr("action"), "Login")) {
  84                 serv_printf("USER %s", bstr("name"));
  85                 serv_gets(buf);
  86                 if (buf[0]=='3') {
  87                         serv_printf("PASS %s", bstr("pass"));
  88                         serv_gets(buf);
  89                         if (buf[0]=='2') {
  90                                 become_logged_in(bstr("name"), bstr("pass"), buf);
  91                                 }
  92                         }
  93                 }
  94
  95         if (logged_in) {
  96                 output_frameset();
  97                 }
  98         else {
  99                 printf("HTTP/1.0 200 OK\n");
 100                 output_headers();
 101                 wprintf("<HTML><HEAD><TITLE>Nope</TITLE></HEAD><BODY>\n");
 102                 wprintf("Your password was not accepted.\n");
 103                 wprintf("<HR><A HREF=\"/\">Try again</A>\n");
 104                 wprintf("</BODY></HTML>\n");
 105                 wDumpContent();
 106                 }
 107
 108         }