functions/prefs.php

   1 <?php
   2    /**
   3     **  prefs.php
   4     **
   5     **  This contains functions for manipulating user preferences
   6     **/
   7
   8    $prefs_php = true;
   9
  10    /** returns the value for $string **/
  11    function getPref($data_dir, $username, $string) {
  12       $filename = "$data_dir$username.pref";
  13       if (!file_exists($filename)) {
  14          echo _("Preference file ") . "\"$filename\"" . _(" not found.  Exiting abnormally");
  15          exit;
  16       }
  17
  18       $file = fopen($filename, "r");
  19
  20       /** read in all the preferences **/
  21       for ($i=0; !feof($file); $i++) {
  22          $pref = fgets($file, 1024);
  23          if (substr($pref, 0, strpos($pref, "=")) == $string) {
  24             fclose($file);
  25             return trim(substr($pref, strpos($pref, "=")+1));
  26          }
  27       }
  28       fclose($file);
  29       return "";
  30    }
  31
  32    function removePref($data_dir, $username, $string) {
  33       $filename = "$data_dir$username.pref";
  34       $found = false;
  35       if (!file_exists($filename)) {
  36          echo _("Preference file, ") . "\"$filename\"" . _(", does not exist.  Log out, and log back in to create a default preference file. ") ."<BR>";
  37          exit;
  38       }
  39       $file = fopen($filename, "r");
  40
  41       for ($i=0; !feof($file); $i++) {
  42          $pref[$i] = fgets($file, 1024);
  43          if (substr($pref[$i], 0, strpos($pref[$i], "=")) == $string) {
  44             $i--;
  45          }
  46       }
  47       fclose($file);
  48
  49       for ($i=0,$j=0; $i < count($pref); $i++) {
  50          if (substr($pref[$i], 0, 9) == "highlight") {
  51             $hlt[$j] = substr($pref[$i], strpos($pref[$i], "=")+1);
  52             $j++;
  53          }
  54       }
  55
  56       $file = fopen($filename, "w");
  57       for ($i=0; $i < count($pref); $i++) {
  58          if (substr($pref[$i], 0, 9) != "highlight") {
  59             fwrite($file, "$pref[$i]", 1024);
  60          }
  61       }
  62       for ($i=0; $i < count($hlt); $i++) {
  63          fwrite($file, "highlight$i=$hlt[$i]");
  64       }
  65
  66       fclose($file);
  67    }
  68
  69    /** sets the pref, $string, to $set_to **/
  70    function setPref($data_dir, $username, $string, $set_to) {
  71       $filename = "$data_dir$username.pref";
  72       $found = false;
  73       if (!file_exists($filename)) {
  74          echo _("Preference file, ") . "\"$filename\"" . _(", does not exist.  Log out, and log back in to create a default preference file. ") ."<BR>";
  75          exit;
  76       }
  77       $file = fopen($filename, "r");
  78
  79       /** read in all the preferences **/
  80       for ($i=0; !feof($file); $i++) {
  81          $pref[$i] = fgets($file, 1024);
  82          if (substr($pref[$i], 0, strpos($pref[$i], "=")) == $string) {
  83             $found = true;
  84             $pos = $i;
  85          }
  86       }
  87       fclose($file);
  88
  89       $file = fopen($filename, "w");
  90       if ($found == true) {
  91          for ($i=0; $i < count($pref); $i++) {
  92             if ($i == $pos) {
  93                fwrite($file, "$string=$set_to\n", 1024);
  94             } else {
  95                fwrite($file, "$pref[$i]", 1024);
  96             }
  97          }
  98       } else {
  99          for ($i=0; $i < count($pref); $i++) {
 100             fwrite($file, "$pref[$i]", 1024);
 101          }
 102          fwrite($file, "$string=$set_to\n", 1024);
 103       }
 104
 105       fclose($file);
 106    }
 107
 108
 109
 110
 111    /** This checks if there is a pref file, if there isn't, it will
 112        create it. **/
 113    function checkForPrefs($data_dir, $username) {
 114       $filename = "$data_dir$username.pref";
 115       if (!file_exists($filename)) {
 116          if (!copy("$data_dir" . "default_pref", $filename)) {
 117             echo _("Error opening ") ."$filename";
 118             exit;
 119          }
 120       }
 121    }
 122
 123
 124
 125    /** Writes the Signature **/
 126    function setSig($data_dir, $username, $string) {
 127       $filename = "$data_dir$username.sig";
 128       $file = fopen($filename, "w");
 129       fwrite($file, $string);
 130       fclose($file);
 131    }
 132
 133
 134
 135    /** Gets the signature **/
 136    function getSig($data_dir, $username) {
 137       $filename = "$data_dir$username.sig";
 138       if (file_exists($filename)) {
 139          $file = fopen($filename, "r");
 140          while (!feof($file)) {
 141             $sig .= fgets($file, 1024);
 142          }
 143          fclose($file);
 144       }
 145       return $sig;
 146    }
 147 ?>