functions/prefs.php

   1 <?php
   2    /**
   3     **  prefs.php
   4     **
   5     **  This contains functions for manipulating user preferences
   6     **
   7     **  $Id$
   8     **/
   9
  10    $prefs_php = true;
  11
  12    /** returns the value for $string **/
  13    function getPref($data_dir, $username, $string) {
  14       $filename = "$data_dir$username.pref";
  15       if (!file_exists($filename)) {
  16          printf (_("Preference file %s not found. Exiting abnormally"), $filename);
  17          exit;
  18       }
  19
  20       $file = fopen($filename, "r");
  21
  22       /** read in all the preferences **/
  23       for ($i=0; !feof($file); $i++) {
  24          $pref = fgets($file, 1024);
  25          if (substr($pref, 0, strpos($pref, "=")) == $string) {
  26             fclose($file);
  27             return trim(substr($pref, strpos($pref, "=")+1));
  28          }
  29       }
  30       fclose($file);
  31       return "";
  32    }
  33
  34    function removePref($data_dir, $username, $string) {
  35       $filename = "$data_dir$username.pref";
  36       $found = false;
  37       if (!file_exists($filename)) {
  38          printf (_("Preference file, %s, does not exist. Log out, and log back in to create a default preference file."), $filename);
  39          echo "<br>\n";
  40          exit;
  41       }
  42       $file = fopen($filename, "r");
  43
  44       for ($i=0; !feof($file); $i++) {
  45          $pref[$i] = fgets($file, 1024);
  46          if (substr($pref[$i], 0, strpos($pref[$i], "=")) == $string) {
  47             $i--;
  48          }
  49       }
  50       fclose($file);
  51
  52       for ($i=0,$j=0; $i < count($pref); $i++) {
  53          if (substr($pref[$i], 0, 9) == "highlight") {
  54             $hlt[$j] = substr($pref[$i], strpos($pref[$i], "=")+1);
  55             $j++;
  56          }
  57       }
  58
  59       $file = fopen($filename, "w");
  60       for ($i=0; $i < count($pref); $i++) {
  61          if (substr($pref[$i], 0, 9) != "highlight") {
  62             fwrite($file, "$pref[$i]", 1024);
  63          }
  64       }
  65       for ($i=0; $i < count($hlt); $i++) {
  66          fwrite($file, "highlight$i=$hlt[$i]");
  67       }
  68
  69       fclose($file);
  70    }
  71
  72    /** sets the pref, $string, to $set_to **/
  73    function setPref($data_dir, $username, $string, $set_to) {
  74       $filename = "$data_dir$username.pref";
  75       $found = false;
  76       if (!file_exists($filename)) {
  77          printf (_("Preference file, %s, does not exist. Log out, and log back in to create a default preference file."), $filename);
  78          echo "\n<br>\n";
  79          exit;
  80       }
  81       $file = fopen($filename, "r");
  82
  83       /** read in all the preferences **/
  84       for ($i=0; !feof($file); $i++) {
  85          $pref[$i] = fgets($file, 1024);
  86          if (substr($pref[$i], 0, strpos($pref[$i], "=")) == $string) {
  87             $found = true;
  88             $pos = $i;
  89          }
  90       }
  91       fclose($file);
  92
  93       $file = fopen($filename, "w");
  94       if ($found == true) {
  95          for ($i=0; $i < count($pref); $i++) {
  96             if ($i == $pos) {
  97                fwrite($file, "$string=$set_to\n", 1024);
  98             } else {
  99                fwrite($file, "$pref[$i]", 1024);
 100             }
 101          }
 102       } else {
 103          for ($i=0; $i < count($pref); $i++) {
 104             fwrite($file, "$pref[$i]", 1024);
 105          }
 106          fwrite($file, "$string=$set_to\n", 1024);
 107       }
 108
 109       fclose($file);
 110    }
 111
 112
 113
 114
 115    /** This checks if there is a pref file, if there isn't, it will
 116        create it. **/
 117    function checkForPrefs($data_dir, $username) {
 118       $filename = "$data_dir$username.pref";
 119       if (!file_exists($filename)) {
 120          if (!copy("$data_dir" . "default_pref", $filename)) {
 121             echo _("Error opening ") ."$filename";
 122             exit;
 123          }
 124       }
 125    }
 126
 127
 128
 129    /** Writes the Signature **/
 130    function setSig($data_dir, $username, $string) {
 131       $filename = "$data_dir$username.sig";
 132       $file = fopen($filename, "w");
 133       fwrite($file, $string);
 134       fclose($file);
 135    }
 136
 137
 138
 139    /** Gets the signature **/
 140    function getSig($data_dir, $username) {
 141       $filename = "$data_dir$username.sig";
 142       if (file_exists($filename)) {
 143          $file = fopen($filename, "r");
 144          $sig = "";
 145          while (!feof($file)) {
 146             $sig .= fgets($file, 1024);
 147          }
 148          fclose($file);
 149       }
 150       return $sig;
 151    }
 152 ?>