X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Fprefs.php;h=67dbd445152ad76475e266df0019d4db87dc27d6;hb=e5f1d1ee9a85d2a271135d05f6d1300996e48aa8;hp=7253092b22cee9715f7cbead96013c28f90e86c3;hpb=99259b46a0b1cc7c2b094f5b1c2830444faf7120;p=squirrelmail.git

diff --git a/functions/prefs.php b/functions/prefs.php
index 7253092b..67dbd445 100644
--- a/functions/prefs.php
+++ b/functions/prefs.php
@@ -1,75 +1,115 @@
-<?
-   /**
-    **  prefs.php
-    **
-    **  This contains functions for manipulating user preferences
-    **/
-
-   /** returns the value for $string **/
-   function getPref($username, $string) {
-      $filename = "../data/$username.pref";
-      $file = fopen($filename, "r");
-
-      /** read in all the preferences **/
-      for ($i=0; !feof($file); $i++) {
-         $pref = fgets($file, 1024);
-         if (substr($pref, 0, strpos($pref, "=")) == $string) {
-            fclose($file);
-            return substr($pref, strpos($pref, "=")+1);
-         }
-      }
-      fclose($file);
-      return "";
-   }
-
-   /** sets the pref, $string, to $set_to **/
-   function setPref($username, $string, $set_to) {
-      $filename = "../data/$username.pref";
-      $found = false;
-      if (!file_exists($filename)) {
-         echo "Preference file, $filename, does not exist.  Log out, and log back in to create a default preference file.<BR>";
-         exit;
-      }
-      $file = fopen($filename, "r");
-
-      /** read in all the preferences **/
-      for ($i=0; !feof($file); $i++) {
-         $pref[$i] = fgets($file, 1024);
-         if (substr($pref[$i], 0, strpos($pref[$i], "=")) == $string) {
-            $found = true;
-            $pos = $i;
-         }
-      }
-      fclose($file);
-
-      $file = fopen($filename, "w");
-      if ($found == true) {
-         for ($i=0; $i < count($pref); $i++) {
-            if ($i == $pos) {
-               fwrite($file, "$string=$set_to\n", 1024);
-            } else {
-               fwrite($file, "$pref[$i]", 1024);
+<?php
+
+/**
+ * prefs.php
+ *
+ * Copyright (c) 1999-2002 The SquirrelMail Project Team
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * This contains functions for manipulating user preferences
+ *
+ * $Id$
+ */
+
+global $prefs_are_cached, $prefs_cache;
+
+if ( !session_is_registered('prefs_are_cached') ||
+     !isset( $prefs_cache) ||
+     !is_array( $prefs_cache) ||
+     substr( phpversion(), 0, 3 ) == '4.1'  ) {
+    $prefs_are_cached = false;
+    $prefs_cache = array();
+}
+
+if (isset($prefs_dsn) && !empty($prefs_dsn)) {
+    require_once('../functions/db_prefs.php');
+} else {
+    require_once('../functions/file_prefs.php');
+}
+
+/* Hashing functions */
+
+function getHashedFile($username, $dir, $datafile, $hash_search = true) {
+    global $dir_hash_level;
+
+    /* Remove trailing slash from $dir if found */
+    if (substr($dir, -1) == '/') {
+        $dir = substr($dir, 0, strlen($dir) - 1);
+    }
+    
+    /* Compute the hash for this user and extract the hash directories. */
+    $hash_dirs = computeHashDirs($username);
+
+    /* First, get and make sure the full hash directory exists. */
+    $real_hash_dir = getHashedDir($username, $dir, $hash_dirs);
+
+    /* Set the value of our real data file. */
+    $result = "$real_hash_dir/$datafile";
+
+    /* Check for this file in the real hash directory. */
+    if ($hash_search && !@file_exists($result)) {
+        /* First check the base directory, the most common location. */
+        if (@file_exists("$dir/$datafile")) {
+            rename("$dir/$datafile", $result);
+
+        /* Then check the full range of possible hash directories. */
+        } else {
+            $check_hash_dir = $dir;
+            for ($h = 0; $h < 4; ++$h) {
+                $check_hash_dir .= '/' . $hash_dirs[$h];
+                if (@is_readable("$check_hash_dir/$datafile")) {
+                    rename("$check_hash_dir/$datafile", $result);
+                    break;
+                }
+            }
+        }
+    }
+     
+    /* Return the full hashed datafile path. */
+    return ($result);
+}
+
+function getHashedDir($username, $dir, $hash_dirs = '') {
+    global $dir_hash_level;
+
+    /* Remove trailing slash from $dir if found */
+    if (substr($dir, -1) == '/') {
+        $dir = substr($dir, 0, strlen($dir) - 1);
+    }
+    
+    /* If necessary, populate the hash dir variable. */
+    if ($hash_dirs == '') {
+        $hash_dirs = computeHashDirs($username);
+    }
+
+    /* Make sure the full hash directory exists. */
+    $real_hash_dir = $dir;
+    for ($h = 0; $h < $dir_hash_level; ++$h) {
+        $real_hash_dir .= '/' . $hash_dirs[$h];
+        if (!@is_dir($real_hash_dir)) {
+            if (!@mkdir($real_hash_dir, 0770)) {
+                echo sprintf(_("Error creating directory %s."), $real_hash_dir) . '<br>' .
+                     _("Could not create hashed directory structure!") . "<br>\n" .
+                     _("Please contact your system administrator and report this error.") . "<br>\n";
+                exit;
             }
-         }
-      } else {
-         for ($i=0; $i < count($pref); $i++) {
-            fwrite($file, "$pref[$i]", 1024);
-         }
-         fwrite($file, "$string=$set_to\n", 1024);
-      }
-
-      fclose($file);
-   }
-
-   /** This checks if there is a pref file, if there isn't, it will create it. **/
-   function checkForPrefs($username) {
-      $filename = "../data/$username.pref";
-      if (!file_exists($filename)) {
-         if (!copy("../data/default_pref", $filename)) {
-            echo "Error opening $filename";
-            exit;
-         }
-      }
-      return;
-   }
-?>
\ No newline at end of file
+        }
+    }
+
+    /* And return that directory. */
+    return ($real_hash_dir);
+}
+
+function computeHashDirs($username) {
+    /* Compute the hash for this user and extract the hash directories. */
+    $hash = base_convert(crc32($username), 10, 16);
+    $hash_dirs = array();
+    for ($h = 0; $h < 4; ++ $h) {
+        $hash_dirs[] = substr($hash, $h, 1);
+    }
+
+    /* Return our array of hash directories. */
+    return ($hash_dirs);
+}
+
+?>