X-Git-Url: https://vcs.fsf.org/?p=squirrelmail.git;a=blobdiff_plain;f=functions%2Fdb_prefs.php;h=63db4a26186c6bec9112e4ea56e7fb0148db4a43;hp=71f372a8fe3a9c997bada49cae8e8d5cb0938ea1;hb=06316c07128f63e41f140a728570a7d2c525b59d;hpb=d6c32258c05219670ab3b4ae2d460d844ea9a247
diff --git a/functions/db_prefs.php b/functions/db_prefs.php
index 71f372a8..63db4a26 100644
--- a/functions/db_prefs.php
+++ b/functions/db_prefs.php
@@ -3,7 +3,7 @@
/**
* db_prefs.php
*
- * Copyright (c) 1999-2003 The SquirrelMail Project Team
+ * Copyright (c) 1999-2005 The SquirrelMail Project Team
* Licensed under the GNU GPL. For full terms see the file COPYING.
*
* This contains functions for manipulating user preferences
@@ -25,10 +25,15 @@
* Configuration of databasename, username and password is done
* by using conf.pl or the administrator plugin
*
- * $Id$
+ * @version $Id$
* @package squirrelmail
+ * @subpackage prefs
+ * @since 1.1.3
*/
+/** @ignore */
+if (!defined('SM_PATH')) define('SM_PATH','../');
+
/** Unknown database */
define('SMDB_UNKNOWN', 0);
/** MySQL */
@@ -36,15 +41,29 @@ define('SMDB_MYSQL', 1);
/** PostgreSQL */
define('SMDB_PGSQL', 2);
-require_once('DB.php');
require_once(SM_PATH . 'config/config.php');
+if (!include_once('DB.php')) {
+ // same error also in abook_database.php
+ require_once(SM_PATH . 'functions/display_messages.php');
+ $error = _("Could not include PEAR database functions required for the database backend.") . "
\n";
+ $error .= sprintf(_("Is PEAR installed, and is the include path set correctly to find %s?"),
+ 'DB.php') . "
\n";
+ $error .= _("Please contact your system administrator and report this error.");
+ error_box($error, $color);
+ exit;
+}
global $prefs_are_cached, $prefs_cache;
+/**
+ * @ignore
+ */
function cachePrefValues($username) {
global $prefs_are_cached, $prefs_cache;
+ sqgetGlobalVar('prefs_are_cached', $prefs_are_cached, SQ_SESSION );
if ($prefs_are_cached) {
+ sqgetGlobalVar('prefs_cache', $prefs_cache, SQ_SESSION );
return;
}
@@ -72,25 +91,84 @@ function cachePrefValues($username) {
}
/**
- * Completely undocumented class - someone document it!
+ * Class used to handle connections to prefs database and operations with preferences
* @package squirrelmail
+ * @subpackage prefs
+ * @since 1.1.3
*/
class dbPrefs {
+ /**
+ * Table used to store preferences
+ * @var string
+ */
var $table = 'userprefs';
+ /**
+ * Field used to store owner of preference
+ * @var string
+ */
var $user_field = 'user';
+ /**
+ * Field used to store preference name
+ * @var string
+ */
var $key_field = 'prefkey';
+ /**
+ * Field used to store preference value
+ * @var string
+ */
var $val_field = 'prefval';
+ /**
+ * Database connection object
+ * @var object
+ */
var $dbh = NULL;
+ /**
+ * Error messages
+ * @var string
+ */
var $error = NULL;
+ /**
+ * Database type (SMDB_* constants)
+ * Is used in setKey().
+ * @var integer
+ */
var $db_type = SMDB_UNKNOWN;
+ /**
+ * Default preferences
+ * @var array
+ */
var $default = Array('theme_default' => 0,
'show_html_default' => '0');
+ /**
+ * Preference owner field size
+ * @var integer
+ * @since 1.5.1
+ */
+ var $user_size = 128;
+ /**
+ * Preference key field size
+ * @var integer
+ * @since 1.5.1
+ */
+ var $key_size = 64;
+ /**
+ * Preference value field size
+ * @var integer
+ * @since 1.5.1
+ */
+ var $val_size = 65536;
+
+ /**
+ * initialize DB connection object
+ * @return boolean true, if object is initialized
+ */
function open() {
global $prefs_dsn, $prefs_table;
global $prefs_user_field, $prefs_key_field, $prefs_val_field;
+ global $prefs_user_size, $prefs_key_size, $prefs_val_size;
if(isset($this->dbh)) {
return true;
@@ -114,6 +192,15 @@ class dbPrefs {
if (!empty($prefs_val_field)) {
$this->val_field = $prefs_val_field;
}
+ if (!empty($prefs_user_size)) {
+ $this->user_size = (int) $prefs_user_size;
+ }
+ if (!empty($prefs_key_size)) {
+ $this->key_size = (int) $prefs_key_size;
+ }
+ if (!empty($prefs_val_size)) {
+ $this->val_size = (int) $prefs_val_size;
+ }
$dbh = DB::connect($prefs_dsn, true);
if(DB::isError($dbh)) {
@@ -125,6 +212,10 @@ class dbPrefs {
return true;
}
+ /**
+ * Function used to handle database connection errors
+ * @param object PEAR Error object
+ */
function failQuery($res = NULL) {
if($res == NULL) {
printf(_("Preference database error (%s). Exiting abnormally"),
@@ -136,7 +227,13 @@ class dbPrefs {
exit;
}
-
+ /**
+ * Get user's prefs setting
+ * @param string $user user name
+ * @param string $key preference name
+ * @param mixed $default (since 1.2.5) default value
+ * @return mixed preference value
+ */
function getKey($user, $key, $default = '') {
global $prefs_cache;
@@ -153,6 +250,12 @@ class dbPrefs {
}
}
+ /**
+ * Delete user's prefs setting
+ * @param string $user user name
+ * @param string $key preference name
+ * @return boolean
+ */
function deleteKey($user, $key) {
global $prefs_cache;
@@ -176,10 +279,57 @@ class dbPrefs {
return true;
}
+ /**
+ * Set user's preference
+ * @param string $user user name
+ * @param string $key preference name
+ * @param mixed $value preference value
+ * @return boolean
+ */
function setKey($user, $key, $value) {
if (!$this->open()) {
return false;
}
+
+ /**
+ * Check if username fits into db field
+ */
+ if (strlen($user) > $this->user_size) {
+ $this->error = "Oversized username value."
+ ." User's preferences can't be saved. See doc/db-backend.txt troubleshooting documentation.";
+
+ /**
+ * Debugging function. Can be used to log all issues that trigger
+ * oversized field errors. Function should be enabled in all three
+ * strlen checks. See http://www.php.net/error-log
+ */
+ // error_log($user.'|'.$key.'|'.$value."\n",3,'/tmp/oversized_log');
+
+ // error is fatal
+ $this->failQuery(null);
+ }
+ /**
+ * Check if preference key fits into db field
+ */
+ if (strlen($key) > $this->key_size) {
+ $err_msg = "Oversized user's preference key."
+ ." Some user preferences are not saved. See doc/db-backend.txt troubleshooting documentation.";
+ // error is not fatal. Only some preference is not saved.
+ trigger_error($err_msg,E_USER_WARNING);
+ return false;
+ }
+ /**
+ * Check if preference value fits into db field
+ */
+ if (strlen($value) > $this->val_size) {
+ $err_msg = "Oversized user's preference value."
+ ." Some user preferences are not saved. See doc/db-backend.txt troubleshooting documentation.";
+ // error is not fatal. Only some preference is not saved.
+ trigger_error($err_msg,E_USER_WARNING);
+ return false;
+ }
+
+
if ($this->db_type == SMDB_MYSQL) {
$query = sprintf("REPLACE INTO %s (%s, %s, %s) ".
"VALUES('%s','%s','%s')",
@@ -250,6 +400,11 @@ class dbPrefs {
return true;
}
+ /**
+ * Fill preference cache array
+ * @param string $user user name
+ * @since 1.2.3
+ */
function fillPrefsCache($user) {
global $prefs_cache;
@@ -278,7 +433,10 @@ class dbPrefs {
} /* end class dbPrefs */
-/* returns the value for the pref $string */
+/**
+ * returns the value for the pref $string
+ * @ignore
+ */
function getPref($data_dir, $username, $string, $default = '') {
$db = new dbPrefs;
if(isset($db->error)) {
@@ -290,7 +448,10 @@ function getPref($data_dir, $username, $string, $default = '') {
return $db->getKey($username, $string, $default);
}
-/* Remove the pref $string */
+/**
+ * Remove the pref $string
+ * @ignore
+ */
function removePref($data_dir, $username, $string) {
global $prefs_cache;
$db = new dbPrefs;
@@ -308,7 +469,10 @@ function removePref($data_dir, $username, $string) {
return;
}
-/* sets the pref, $string, to $set_to */
+/**
+ * sets the pref, $string, to $set_to
+ * @ignore
+ */
function setPref($data_dir, $username, $string, $set_to) {
global $prefs_cache;
@@ -335,7 +499,10 @@ function setPref($data_dir, $username, $string, $set_to) {
return;
}
-/* This checks if the prefs are available */
+/**
+ * This checks if the prefs are available
+ * @ignore
+ */
function checkForPrefs($data_dir, $username) {
$db = new dbPrefs;
if(isset($db->error)) {
@@ -343,7 +510,10 @@ function checkForPrefs($data_dir, $username) {
}
}
-/* Writes the Signature */
+/**
+ * Writes the Signature
+ * @ignore
+ */
function setSig($data_dir, $username, $number, $string) {
if ($number == "g") {
$key = '___signature___';
@@ -354,7 +524,10 @@ function setSig($data_dir, $username, $number, $string) {
return;
}
-/* Gets the signature */
+/**
+ * Gets the signature
+ * @ignore
+ */
function getSig($data_dir, $username, $number) {
if ($number == "g") {
$key = '___signature___';
@@ -364,4 +537,5 @@ function getSig($data_dir, $username, $number) {
return getPref($data_dir, $username, $key);
}
-?>
+// vim: et ts=4
+?>
\ No newline at end of file