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