squirrelmail/functions/db_prefs.php
2025-01-03 11:47:03 -08:00

936 lines
36 KiB
PHP

<?php
/**
* db_prefs.php
*
* This contains functions for manipulating user preferences
* stored in a database, accessed through the Pear DB layer
* or PDO, the latter taking precedence if available.
*
* Database:
*
* The preferences table should have three columns:
* user char \ primary
* prefkey char / key
* prefval blob
*
* CREATE TABLE userprefs (user CHAR(128) NOT NULL DEFAULT '',
* prefkey CHAR(64) NOT NULL DEFAULT '',
* prefval BLOB NOT NULL DEFAULT '',
* primary key (user,prefkey));
*
* Configuration of databasename, username and password is done
* by using conf.pl or the administrator plugin
*
* Three settings that control PDO behavior can be specified in
* config/config_local.php if needed:
* boolean $disable_pdo SquirrelMail uses PDO by default to access the
* user preferences and address book databases, but
* setting this to TRUE will cause SquirrelMail to
* fall back to using Pear DB instead.
* boolean $pdo_show_sql_errors When database errors are encountered,
* setting this to TRUE causes the actual
* database error to be displayed, otherwise
* generic errors are displayed, preventing
* internal database information from being
* exposed. This should be enabled only for
* debugging purposes.
* string $db_identifier_quote_char By default, SquirrelMail will quote
* table and field names in database
* queries with what it thinks is the
* appropriate quote character for the
* database type being used (backtick
* for MySQL (and thus MariaDB), double
* quotes for all others), but you can
* override the character used by
* putting it here, or tell SquirrelMail
* NOT to quote identifiers by setting
* this to "none"
*
* If needed, you can also set $prefs_db_charset as a string
* (such as "utf8mb4") in config/config_local.php if your system
* does not default the SQL connection character set as expected
* (most sensible systems will do the right thing transparently).
*
* @copyright 1999-2025 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @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 */
define('SMDB_MYSQL', 1);
/** PostgreSQL */
define('SMDB_PGSQL', 2);
/**
* Needs either PDO or the DB functions
* Don't display errors here. (no code execution in functions/*.php).
* will handle error in dbPrefs class.
*/
global $use_pdo, $disable_pdo;
if (empty($disable_pdo) && class_exists('PDO'))
$use_pdo = TRUE;
else
$use_pdo = FALSE;
if (!$use_pdo)
@include_once('DB.php');
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;
}
sqsession_unregister('prefs_cache');
sqsession_unregister('prefs_are_cached');
$db = new dbPrefs;
if(isset($db->error)) {
printf( _("Preference database error (%s). Exiting abnormally"),
$db->error);
exit;
}
$db->fillPrefsCache($username);
if (isset($db->error)) {
printf( _("Preference database error (%s). Exiting abnormally"),
$db->error);
exit;
}
$prefs_are_cached = true;
sqsession_register($prefs_cache, 'prefs_cache');
sqsession_register($prefs_are_cached, 'prefs_are_cached');
}
/**
* 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;
/**
* Character used to quote database table
* and field names
* @var string
*/
var $identifier_quote_char = '';
/**
* Default preferences
* @var array
*/
var $default = Array('theme_default' => 0,
'include_self_reply_all' => '0',
'do_not_reply_to_self' => '1',
'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;
/**
* Constructor (PHP5 style, required in some future version of PHP)
* initialize the default preferences array.
*
*/
function __construct() {
// Try and read the default preferences file.
$default_pref = SM_PATH . 'config/default_pref';
if (@file_exists($default_pref)) {
if ($file = @fopen($default_pref, 'r')) {
while (!feof($file)) {
$pref = fgets($file, 1024);
$i = strpos($pref, '=');
if ($i > 0) {
$this->default[trim(substr($pref, 0, $i))] = trim(substr($pref, $i + 1));
}
}
fclose($file);
}
}
}
/**
* Constructor (PHP4 style, kept for compatibility reasons)
* initialize the default preferences array.
*
*/
function dbPrefs() {
self::__construct();
}
/**
* initialize DB connection object
*
* @return boolean true, if object is initialized
*
*/
function open() {
global $prefs_dsn, $prefs_db_charset, $prefs_table, $use_pdo, $db_identifier_quote_char;
global $prefs_user_field, $prefs_key_field, $prefs_val_field;
global $prefs_user_size, $prefs_key_size, $prefs_val_size;
/* test if PDO or Pear DB classes are available and freak out if necessary */
if (!$use_pdo && !class_exists('DB')) {
// same error also in abook_database.php
$error = _("Could not find or include PHP PDO or PEAR database functions required for the database backend.") . "\n";
$error .= sprintf(_("PDO should come preinstalled with PHP version 5.1 or higher. Otherwise, is PEAR installed, and is the include path set correctly to find %s?"), 'DB.php') . "\n";
$error .= _("Please contact your system administrator and report this error.");
return false;
}
if(isset($this->dbh)) {
return true;
}
if (strpos($prefs_dsn, 'mysql') === 0) {
$this->db_type = SMDB_MYSQL;
} else if (strpos($prefs_dsn, 'pgsql') === 0) {
$this->db_type = SMDB_PGSQL;
}
// figure out identifier quoting
if (empty($db_identifier_quote_char)) {
if ($this->db_type == SMDB_MYSQL)
$this->identifier_quote_char = '`';
else
$this->identifier_quote_char = '"';
} else if ($db_identifier_quote_char === 'none')
$this->identifier_quote_char = '';
else
$this->identifier_quote_char = $db_identifier_quote_char;
if (!empty($prefs_table)) {
$this->table = $prefs_table;
}
if (!empty($prefs_user_field)) {
$this->user_field = $prefs_user_field;
}
if (!empty($prefs_key_field)) {
$this->key_field = $prefs_key_field;
}
if (!empty($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) $prefs_val_size;
}
// connect, create database connection object
//
if ($use_pdo) {
// parse and convert DSN to PDO style
// Pear's full DSN syntax is one of the following:
// phptype(dbsyntax)://username:password@protocol+hostspec/database?option=value
// phptype(syntax)://user:pass@protocol(proto_opts)/database
//
// $matches will contain:
// 1: database type
// 2: username
// 3: password
// 4: hostname (and possible port number) OR protocol (and possible protocol options)
// 5: database name (and possible options)
// 6: port number (moved from match number 4)
// 7: options (moved from match number 5)
// 8: protocol (instead of hostname)
// 9: protocol options (moved from match number 4/8)
//TODO: do we care about supporting cases where no password is given? (this is a legal DSN, but causes an error below)
if (!preg_match('|^(.+)://(.+):(.+)@(.+)/(.+)$|i', $prefs_dsn, $matches)) {
$this->error = _("Could not parse prefs DSN");
return false;
}
$matches[6] = NULL;
$matches[7] = NULL;
$matches[8] = NULL;
$matches[9] = NULL;
if (preg_match('|^(.+):(\d+)$|', $matches[4], $host_port_matches)) {
$matches[4] = $host_port_matches[1];
$matches[6] = $host_port_matches[2];
}
if (preg_match('|^(.+?)\((.+)\)$|', $matches[4], $protocol_matches)) {
$matches[8] = $protocol_matches[1];
$matches[9] = $protocol_matches[2];
$matches[4] = NULL;
$matches[6] = NULL;
}
//TODO: currently we just ignore options specified on the end of the DSN
if (preg_match('|^(.+?)\?(.+)$|', $matches[5], $database_name_options_matches)) {
$matches[5] = $database_name_options_matches[1];
$matches[7] = $database_name_options_matches[2];
}
if ($matches[8] === 'unix' && !empty($matches[9]))
$pdo_prefs_dsn = $matches[1] . ':unix_socket=' . $matches[9] . ';dbname=' . $matches[5];
else
$pdo_prefs_dsn = $matches[1] . ':host=' . $matches[4] . (!empty($matches[6]) ? ';port=' . $matches[6] : '') . ';dbname=' . $matches[5];
if (!empty($prefs_db_charset))
$pdo_prefs_dsn .= ';charset=' . $prefs_db_charset;
try {
$dbh = new PDO($pdo_prefs_dsn, $matches[2], $matches[3]);
} catch (Exception $e) {
$this->error = $e->getMessage();
return false;
}
} else {
$dbh = DB::connect($prefs_dsn, true);
if(DB::isError($dbh)) {
$this->error = DB::errorMessage($dbh);
return false;
}
}
$this->dbh = $dbh;
// Older versions of PHP are buggy with setting charset on the dsn so we also issue a SET NAMES
if (!empty($prefs_db_charset)) {
if ($use_pdo) {
$res = $dbh->exec('SET NAMES \'' . $prefs_db_charset . '\'');
/* Purposefully not checking for errors; some setups reportedly botch this on queries like this
if ($res === FALSE) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $sth->errorInfo());
else
$this->error = _("Could not execute query");
}
$this->failQuery();
*/
}
else {
$res = $this->dbh->simpleQuery('SET NAMES \'' . $prefs_db_charset . '\'');
/* Purposefully not checking for errors; some setups reportedly botch this on queries like this
if(DB::isError($res)) {
$this->failQuery($res);
}
*/
}
}
return true;
}
/**
* Function used to handle database connection errors
*
* @param object PEAR Error object
*
*/
function failQuery($res = NULL) {
global $use_pdo;
if($res == NULL) {
printf(_("Preference database error (%s). Exiting abnormally"),
$this->error);
} else {
printf(_("Preference database error (%s). Exiting abnormally"),
($use_pdo ? implode(' - ', $res->errorInfo()) : DB::errorMessage($res)));
}
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;
$temp = array(&$user, &$key);
$result = do_hook('get_pref_override', $temp);
if (is_null($result)) {
cachePrefValues($user);
if (isset($prefs_cache[$key])) {
$result = $prefs_cache[$key];
} else {
//FIXME: is there a justification for having two prefs hooks so close? who uses them?
$temp = array(&$user, &$key);
$result = do_hook('get_pref', $temp);
if (is_null($result)) {
if (isset($this->default[$key])) {
$result = $this->default[$key];
} else {
$result = $default;
}
}
}
}
return $result;
}
/**
* Delete user's prefs setting
*
* @param string $user user name
* @param string $key preference name
*
* @return boolean
*
*/
function deleteKey($user, $key) {
global $prefs_cache, $use_pdo, $pdo_show_sql_errors;
if (!$this->open()) {
return false;
}
if ($use_pdo) {
if (!($sth = $this->dbh->prepare('DELETE FROM ' . $this->identifier_quote_char . $this->table . $this->identifier_quote_char . ' WHERE ' . $this->identifier_quote_char . $this->user_field . $this->identifier_quote_char . ' = ? AND ' . $this->identifier_quote_char . $this->key_field . $this->identifier_quote_char . ' = ?'))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not prepare query");
$this->failQuery();
}
if (!($res = $sth->execute(array($user, $key)))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $sth->errorInfo());
else
$this->error = _("Could not execute query");
$this->failQuery();
}
} else {
$query = sprintf("DELETE FROM %s%s%s WHERE %s%s%s='%s' AND %s%s%s='%s'",
$this->identifier_quote_char,
$this->table,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->user_field,
$this->identifier_quote_char,
$this->dbh->quoteString($user),
$this->identifier_quote_char,
$this->key_field,
$this->identifier_quote_char,
$this->dbh->quoteString($key));
$res = $this->dbh->simpleQuery($query);
if(DB::isError($res)) {
$this->failQuery($res);
}
}
unset($prefs_cache[$key]);
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) {
global $use_pdo, $pdo_show_sql_errors;
if (!$this->open()) {
return false;
}
/**
* Check if username fits into db field
*/
if (strlen($user) > $this->user_size) {
$this->error = "Oversized username value."
." Your preferences can't be saved."
." See the administrator's manual or contact your system administrator.";
/**
* Debugging function. Can be used to log all issues that trigger
* oversized field errors. Function should be enabled in all three
* strlen checks. See http://www.php.net/error-log
*/
// error_log($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) {
$err_msg = "Oversized user's preference key."
." Some preferences were not saved."
." See the administrator's manual or contact your system administrator.";
// error is not fatal. Only some preference is not saved.
trigger_error($err_msg,E_USER_WARNING);
return false;
}
/**
* Check if preference value fits into db field
*/
if (strlen($value) > $this->val_size) {
$err_msg = "Oversized user's preference value."
." Some preferences were not saved."
." See the administrator's manual or contact your system administrator.";
// error is not fatal. Only some preference is not saved.
trigger_error($err_msg,E_USER_WARNING);
return false;
}
if ($this->db_type == SMDB_MYSQL) {
if ($use_pdo) {
if (!($sth = $this->dbh->prepare('REPLACE INTO ' . $this->identifier_quote_char . $this->table . $this->identifier_quote_char . ' (' . $this->identifier_quote_char . $this->user_field . $this->identifier_quote_char . ', ' . $this->identifier_quote_char . $this->key_field . $this->identifier_quote_char . ', ' . $this->identifier_quote_char . $this->val_field . $this->identifier_quote_char . ') VALUES (?, ?, ?)'))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not prepare query");
$this->failQuery();
}
if (!($res = $sth->execute(array($user, $key, $value)))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $sth->errorInfo());
else
$this->error = _("Could not execute query");
$this->failQuery();
}
} else {
$query = sprintf("REPLACE INTO %s%s%s (%s%s%s, %s%s%s, %s%s%s) ".
"VALUES('%s','%s','%s')",
$this->identifier_quote_char,
$this->table,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->user_field,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->key_field,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->val_field,
$this->identifier_quote_char,
$this->dbh->quoteString($user),
$this->dbh->quoteString($key),
$this->dbh->quoteString($value));
$res = $this->dbh->simpleQuery($query);
if(DB::isError($res)) {
$this->failQuery($res);
}
}
} elseif ($this->db_type == SMDB_PGSQL) {
if ($use_pdo) {
if ($this->dbh->exec('BEGIN TRANSACTION') === FALSE) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not execute query");
$this->failQuery();
}
if (!($sth = $this->dbh->prepare('DELETE FROM ' . $this->identifier_quote_char . $this->table . $this->identifier_quote_char . ' WHERE ' . $this->identifier_quote_char . $this->user_field . $this->identifier_quote_char . ' = ? AND ' . $this->identifier_quote_char . $this->key_field . $this->identifier_quote_char . ' = ?'))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not prepare query");
$this->failQuery();
}
if (!($res = $sth->execute(array($user, $key)))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $sth->errorInfo());
else
$this->error = _("Could not execute query");
$this->dbh->exec('ROLLBACK TRANSACTION');
$this->failQuery();
}
if (!($sth = $this->dbh->prepare('INSERT INTO ' . $this->identifier_quote_char . $this->table . $this->identifier_quote_char . ' (' . $this->identifier_quote_char . $this->user_field . $this->identifier_quote_char . ', ' . $this->identifier_quote_char . $this->key_field . $this->identifier_quote_char . ', ' . $this->identifier_quote_char . $this->val_field . $this->identifier_quote_char . ') VALUES (?, ?, ?)'))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not prepare query");
$this->failQuery();
}
if (!($res = $sth->execute(array($user, $key, $value)))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $sth->errorInfo());
else
$this->error = _("Could not execute query");
$this->dbh->exec('ROLLBACK TRANSACTION');
$this->failQuery();
}
if ($this->dbh->exec('COMMIT TRANSACTION') === FALSE) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not execute query");
$this->failQuery();
}
} else {
$this->dbh->simpleQuery("BEGIN TRANSACTION");
$query = sprintf("DELETE FROM %s%s%s WHERE %s%s%s='%s' AND %s%s%s='%s'",
$this->identifier_quote_char,
$this->table,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->user_field,
$this->identifier_quote_char,
$this->dbh->quoteString($user),
$this->identifier_quote_char,
$this->key_field,
$this->identifier_quote_char,
$this->dbh->quoteString($key));
$res = $this->dbh->simpleQuery($query);
if (DB::isError($res)) {
$this->dbh->simpleQuery("ROLLBACK TRANSACTION");
$this->failQuery($res);
}
$query = sprintf("INSERT INTO %s%s%s (%s%s%s, %s%s%s, %s%s%s) VALUES ('%s', '%s', '%s')",
$this->identifier_quote_char,
$this->table,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->user_field,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->key_field,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->val_field,
$this->identifier_quote_char,
$this->dbh->quoteString($user),
$this->dbh->quoteString($key),
$this->dbh->quoteString($value));
$res = $this->dbh->simpleQuery($query);
if (DB::isError($res)) {
$this->dbh->simpleQuery("ROLLBACK TRANSACTION");
$this->failQuery($res);
}
$this->dbh->simpleQuery("COMMIT TRANSACTION");
}
} else {
if ($use_pdo) {
if (!($sth = $this->dbh->prepare('DELETE FROM ' . $this->identifier_quote_char . $this->table . $this->identifier_quote_char . ' WHERE ' . $this->identifier_quote_char . $this->user_field . $this->identifier_quote_char . ' = ? AND ' . $this->identifier_quote_char . $this->key_field . $this->identifier_quote_char . ' = ?'))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not prepare query");
$this->failQuery();
}
if (!($res = $sth->execute(array($user, $key)))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $sth->errorInfo());
else
$this->error = _("Could not execute query");
$this->failQuery();
}
if (!($sth = $this->dbh->prepare('INSERT INTO ' . $this->identifier_quote_char . $this->table . $this->identifier_quote_char . ' (' . $this->identifier_quote_char . $this->user_field . $this->identifier_quote_char . ', ' . $this->identifier_quote_char . $this->key_field . $this->identifier_quote_char . ', ' . $this->identifier_quote_char . $this->val_field . $this->identifier_quote_char . ') VALUES (?, ?, ?)'))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not prepare query");
$this->failQuery();
}
if (!($res = $sth->execute(array($user, $key, $value)))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $sth->errorInfo());
else
$this->error = _("Could not execute query");
$this->failQuery();
}
} else {
$query = sprintf("DELETE FROM %s%s%s WHERE %s%s%s='%s' AND %s%s%s='%s'",
$this->identifier_quote_char,
$this->table,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->user_field,
$this->identifier_quote_char,
$this->dbh->quoteString($user),
$this->identifier_quote_char,
$this->key_field,
$this->identifier_quote_char,
$this->dbh->quoteString($key));
$res = $this->dbh->simpleQuery($query);
if (DB::isError($res)) {
$this->failQuery($res);
}
$query = sprintf("INSERT INTO %s%s%s (%s%s%s, %s%s%s, %s%s%s) VALUES ('%s', '%s', '%s')",
$this->identifier_quote_char,
$this->table,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->user_field,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->key_field,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->val_field,
$this->identifier_quote_char,
$this->dbh->quoteString($user),
$this->dbh->quoteString($key),
$this->dbh->quoteString($value));
$res = $this->dbh->simpleQuery($query);
if (DB::isError($res)) {
$this->failQuery($res);
}
}
}
return true;
}
/**
* Fill preference cache array
*
* @param string $user user name
*
* @since 1.2.3
*
*/
function fillPrefsCache($user) {
global $prefs_cache, $use_pdo, $pdo_show_sql_errors;
if (!$this->open()) {
return;
}
$prefs_cache = array();
if ($use_pdo) {
if (!($sth = $this->dbh->prepare('SELECT ' . $this->identifier_quote_char . $this->key_field . $this->identifier_quote_char . ' AS prefkey, ' . $this->identifier_quote_char . $this->val_field . $this->identifier_quote_char . ' AS prefval FROM ' . $this->identifier_quote_char . $this->table . $this->identifier_quote_char . ' WHERE ' . $this->identifier_quote_char . $this->user_field . $this->identifier_quote_char . ' = ?'))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $this->dbh->errorInfo());
else
$this->error = _("Could not prepare query");
$this->failQuery();
}
if (!($res = $sth->execute(array($user)))) {
if ($pdo_show_sql_errors)
$this->error = implode(' - ', $sth->errorInfo());
else
$this->error = _("Could not execute query");
$this->failQuery();
}
while ($row = $sth->fetch(PDO::FETCH_ASSOC)) {
$prefs_cache[$row['prefkey']] = $row['prefval'];
}
} else {
$query = sprintf("SELECT %s%s%s as prefkey, %s%s%s as prefval FROM %s%s%s ".
"WHERE %s%s%s = '%s'",
$this->identifier_quote_char,
$this->key_field,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->val_field,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->table,
$this->identifier_quote_char,
$this->identifier_quote_char,
$this->user_field,
$this->identifier_quote_char,
$this->dbh->quoteString($user));
$res = $this->dbh->query($query);
if (DB::isError($res)) {
$this->failQuery($res);
}
while ($row = $res->fetchRow(DB_FETCHMODE_ASSOC)) {
$prefs_cache[$row['prefkey']] = $row['prefval'];
}
}
}
} /* end class dbPrefs */
/**
* Returns the value for the requested preference
* @ignore
*/
function getPref($data_dir, $username, $pref_name, $default = '') {
$db = new dbPrefs;
if(isset($db->error)) {
printf( _("Preference database error (%s). Exiting abnormally"),
$db->error);
exit;
}
return $db->getKey($username, $pref_name, $default);
}
/**
* Remove the desired preference setting ($pref_name)
* @ignore
*/
function removePref($data_dir, $username, $pref_name) {
global $prefs_cache;
$db = new dbPrefs;
if(isset($db->error)) {
$db->failQuery();
}
$db->deleteKey($username, $pref_name);
if (isset($prefs_cache[$pref_name])) {
unset($prefs_cache[$pref_name]);
}
sqsession_register($prefs_cache , 'prefs_cache');
return;
}
/**
* Sets the desired preference setting ($pref_name) to whatever is in $value
* @ignore
*/
function setPref($data_dir, $username, $pref_name, $value) {
global $prefs_cache;
if (isset($prefs_cache[$pref_name]) && ($prefs_cache[$pref_name] == $value)) {
return;
}
if ($value === '') {
removePref($data_dir, $username, $pref_name);
return;
}
$db = new dbPrefs;
if(isset($db->error)) {
$db->failQuery();
}
$db->setKey($username, $pref_name, $value);
$prefs_cache[$pref_name] = $value;
assert_options(ASSERT_ACTIVE, 1);
assert_options(ASSERT_BAIL, 1);
assert ('$value == $prefs_cache[$pref_name]');
sqsession_register($prefs_cache , 'prefs_cache');
return;
}
/**
* This checks if the prefs are available
* @ignore
*/
function checkForPrefs($data_dir, $username) {
$db = new dbPrefs;
if(isset($db->error)) {
$db->failQuery();
}
}
/**
* Writes the Signature
* @ignore
*/
function setSig($data_dir, $username, $number, $value) {
if ($number == "g") {
$key = '___signature___';
} else {
$key = sprintf('___sig%s___', $number);
}
setPref($data_dir, $username, $key, $value);
return;
}
/**
* Gets the signature
* @ignore
*/
function getSig($data_dir, $username, $number) {
if ($number == "g") {
$key = '___signature___';
} else {
$key = sprintf('___sig%d___', $number);
}
return getPref($data_dir, $username, $key);
}