functions/prefs.php

   1 <?
   2    /**
   3     **  prefs.php
   4     **
   5     **  This contains functions for manipulating user preferences
   6     **/
   7
   8    /** returns the value for $string **/
   9    function getPref($data_dir, $username, $string) {
  10       $filename = "$data_dir$username.pref";
  11       if (!file_exists($filename)) {
  12          echo _("Preference file ") "\"$filename\"" _(" not found.  Exiting abnormally");
  13          exit;
  14       }
  15
  16       $file = fopen($filename, "r");
  17
  18       /** read in all the preferences **/
  19       for ($i=0; !feof($file); $i++) {
  20          $pref = fgets($file, 1024);
  21          if (substr($pref, 0, strpos($pref, "=")) == $string) {
  22             fclose($file);
  23             return trim(substr($pref, strpos($pref, "=")+1));
  24          }
  25       }
  26       fclose($file);
  27       return "";
  28    }
  29
  30    /** sets the pref, $string, to $set_to **/
  31    function setPref($data_dir, $username, $string, $set_to) {
  32       $filename = "$data_dir$username.pref";
  33       $found = false;
  34       if (!file_exists($filename)) {
  35          echo _("Preference file, ") "\"$filename\"". _(", does not exist.  Log out, and log back in to create a default preference file. ") ."<BR>";
  36          exit;
  37       }
  38       $file = fopen($filename, "r");
  39
  40       /** read in all the preferences **/
  41       for ($i=0; !feof($file); $i++) {
  42          $pref[$i] = fgets($file, 1024);
  43          if (substr($pref[$i], 0, strpos($pref[$i], "=")) == $string) {
  44             $found = true;
  45             $pos = $i;
  46          }
  47       }
  48       fclose($file);
  49
  50       $file = fopen($filename, "w");
  51       if ($found == true) {
  52          for ($i=0; $i < count($pref); $i++) {
  53             if ($i == $pos) {
  54                fwrite($file, "$string=$set_to\n", 1024);
  55             } else {
  56                fwrite($file, "$pref[$i]", 1024);
  57             }
  58          }
  59       } else {
  60          for ($i=0; $i < count($pref); $i++) {
  61             fwrite($file, "$pref[$i]", 1024);
  62          }
  63          fwrite($file, "$string=$set_to\n", 1024);
  64       }
  65
  66       fclose($file);
  67    }
  68
  69
  70
  71
  72    /** This checks if there is a pref file, if there isn't, it will create it. **/
  73    function checkForPrefs($data_dir, $username) {
  74       $filename = "$data_dir$username.pref";
  75       if (!file_exists($filename)) {
  76          if (!copy("$data_dir" . "default_pref", $filename)) {
  77             echo _("Error opening ") ."$filename";
  78             exit;
  79          }
  80       }
  81       return;
  82    }
  83
  84
  85
  86    /** Writes the Signature **/
  87    function setSig($data_dir, $username, $string) {
  88       $filename = "$data_dir$username.sig";
  89       $file = fopen($filename, "w");
  90       fwrite($file, $string);
  91       fclose($file);
  92    }
  93
  94
  95
  96    /** Gets the signature **/
  97    function getSig($data_dir, $username) {
  98       $filename = "$data_dir$username.sig";
  99       if (file_exists($filename)) {
 100          $file = fopen($filename, "r");
 101          while (!feof($file)) {
 102             $sig .= fgets($file, 1024);
 103          }
 104          fclose($file);
 105       } else {
 106          echo _("Signature file not found.");
 107          exit;
 108       }
 109       return $sig;
 110    }
 111 ?>