mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-24 07:39:27 +01:00
295 lines
8.6 KiB
PHP
295 lines
8.6 KiB
PHP
<?php
|
|
/**
|
|
* $Header: /repository/pear/Log/Log/sql.php,v 1.40 2006/01/03 04:12:45 jon Exp $
|
|
* $Horde: horde/lib/Log/sql.php,v 1.12 2000/08/16 20:27:34 chuck Exp $
|
|
*
|
|
* @version $Revision: 1.40 $
|
|
* @package Log
|
|
*/
|
|
|
|
/*
|
|
* We require the PEAR DB class. This is generally defined in the DB.php file,
|
|
* but it's possible that the caller may have provided the DB class, or a
|
|
* compatible wrapper (such as the one shipped with MDB2), so we first check
|
|
* for an existing 'DB' class before including 'DB.php'.
|
|
*/
|
|
if (!class_exists('DB')) {
|
|
require_once 'DB.php';
|
|
}
|
|
|
|
/**
|
|
* The Log_sql class is a concrete implementation of the Log::
|
|
* abstract class which sends messages to an SQL server. Each entry
|
|
* occupies a separate row in the database.
|
|
*
|
|
* This implementation uses PHP's PEAR database abstraction layer.
|
|
*
|
|
* CREATE TABLE log_table (
|
|
* id INT NOT NULL,
|
|
* logtime TIMESTAMP NOT NULL,
|
|
* ident CHAR(16) NOT NULL,
|
|
* priority INT NOT NULL,
|
|
* message VARCHAR(200),
|
|
* PRIMARY KEY (id)
|
|
* );
|
|
*
|
|
* @author Jon Parise <jon@php.net>
|
|
* @since Horde 1.3
|
|
* @since Log 1.0
|
|
* @package Log
|
|
*
|
|
* @example sql.php Using the SQL handler.
|
|
*/
|
|
class Log_sql extends Log
|
|
{
|
|
/**
|
|
* Variable containing the DSN information.
|
|
* @var mixed
|
|
* @access private
|
|
*/
|
|
var $_dsn = '';
|
|
|
|
/**
|
|
* String containing the SQL insertion statement.
|
|
*
|
|
* @var string
|
|
* @access private
|
|
*/
|
|
var $_sql = '';
|
|
|
|
/**
|
|
* Array containing our set of DB configuration options.
|
|
* @var array
|
|
* @access private
|
|
*/
|
|
var $_options = array('persistent' => true);
|
|
|
|
/**
|
|
* Object holding the database handle.
|
|
* @var object
|
|
* @access private
|
|
*/
|
|
var $_db = null;
|
|
|
|
/**
|
|
* Resource holding the prepared statement handle.
|
|
* @var resource
|
|
* @access private
|
|
*/
|
|
var $_statement = null;
|
|
|
|
/**
|
|
* Flag indicating that we're using an existing database connection.
|
|
* @var boolean
|
|
* @access private
|
|
*/
|
|
var $_existingConnection = false;
|
|
|
|
/**
|
|
* String holding the database table to use.
|
|
* @var string
|
|
* @access private
|
|
*/
|
|
var $_table = 'log_table';
|
|
|
|
/**
|
|
* String holding the name of the ID sequence.
|
|
* @var string
|
|
* @access private
|
|
*/
|
|
var $_sequence = 'log_id';
|
|
|
|
/**
|
|
* Maximum length of the $ident string. This corresponds to the size of
|
|
* the 'ident' column in the SQL table.
|
|
* @var integer
|
|
* @access private
|
|
*/
|
|
var $_identLimit = 16;
|
|
|
|
|
|
/**
|
|
* Constructs a new sql logging object.
|
|
*
|
|
* @param string $name The target SQL table.
|
|
* @param string $ident The identification field.
|
|
* @param array $conf The connection configuration array.
|
|
* @param int $level Log messages up to and including this level.
|
|
* @access public
|
|
*/
|
|
function Log_sql($name, $ident = '', $conf = array(),
|
|
$level = PEAR_LOG_DEBUG)
|
|
{
|
|
$this->_id = md5(microtime());
|
|
$this->_table = $name;
|
|
$this->_mask = Log::UPTO($level);
|
|
|
|
/* Now that we have a table name, assign our SQL statement. */
|
|
if (!empty($this->_sql)) {
|
|
$this->_sql = $conf['sql'];
|
|
} else {
|
|
$this->_sql = 'INSERT INTO ' . $this->_table .
|
|
' (id, logtime, ident, priority, message)' .
|
|
' VALUES(?, CURRENT_TIMESTAMP, ?, ?, ?)';
|
|
}
|
|
|
|
/* If an options array was provided, use it. */
|
|
if (isset($conf['options']) && is_array($conf['options'])) {
|
|
$this->_options = $conf['options'];
|
|
}
|
|
|
|
/* If a specific sequence name was provided, use it. */
|
|
if (!empty($conf['sequence'])) {
|
|
$this->_sequence = $conf['sequence'];
|
|
}
|
|
|
|
/* If a specific sequence name was provided, use it. */
|
|
if (isset($conf['identLimit'])) {
|
|
$this->_identLimit = $conf['identLimit'];
|
|
}
|
|
|
|
/* Now that the ident limit is confirmed, set the ident string. */
|
|
$this->setIdent($ident);
|
|
|
|
/* If an existing database connection was provided, use it. */
|
|
if (isset($conf['db'])) {
|
|
$this->_db = &$conf['db'];
|
|
$this->_existingConnection = true;
|
|
$this->_opened = true;
|
|
} else {
|
|
$this->_dsn = $conf['dsn'];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Opens a connection to the database, if it has not already
|
|
* been opened. This is implicitly called by log(), if necessary.
|
|
*
|
|
* @return boolean True on success, false on failure.
|
|
* @access public
|
|
*/
|
|
function open()
|
|
{
|
|
if (!$this->_opened) {
|
|
/* Use the DSN and options to create a database connection. */
|
|
$this->_db = &DB::connect($this->_dsn, $this->_options);
|
|
if (DB::isError($this->_db)) {
|
|
return false;
|
|
}
|
|
|
|
/* Create a prepared statement for repeated use in log(). */
|
|
if (!$this->_prepareStatement()) {
|
|
return false;
|
|
}
|
|
|
|
/* We now consider out connection open. */
|
|
$this->_opened = true;
|
|
}
|
|
|
|
return $this->_opened;
|
|
}
|
|
|
|
/**
|
|
* Closes the connection to the database if it is still open and we were
|
|
* the ones that opened it. It is the caller's responsible to close an
|
|
* existing connection that was passed to us via $conf['db'].
|
|
*
|
|
* @return boolean True on success, false on failure.
|
|
* @access public
|
|
*/
|
|
function close()
|
|
{
|
|
if ($this->_opened && !$this->_existingConnection) {
|
|
$this->_opened = false;
|
|
$this->_db->freePrepared($this->_statement);
|
|
return $this->_db->disconnect();
|
|
}
|
|
|
|
return ($this->_opened === false);
|
|
}
|
|
|
|
/**
|
|
* Sets this Log instance's identification string. Note that this
|
|
* SQL-specific implementation will limit the length of the $ident string
|
|
* to sixteen (16) characters.
|
|
*
|
|
* @param string $ident The new identification string.
|
|
*
|
|
* @access public
|
|
* @since Log 1.8.5
|
|
*/
|
|
function setIdent($ident)
|
|
{
|
|
$this->_ident = substr($ident, 0, $this->_identLimit);
|
|
}
|
|
|
|
/**
|
|
* Inserts $message to the currently open database. Calls open(),
|
|
* if necessary. Also passes the message along to any Log_observer
|
|
* instances that are observing this Log.
|
|
*
|
|
* @param mixed $message String or object containing the message to log.
|
|
* @param string $priority The priority of the message. Valid
|
|
* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
|
|
* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
|
|
* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
|
|
* @return boolean True on success or false on failure.
|
|
* @access public
|
|
*/
|
|
function log($message, $priority = null)
|
|
{
|
|
/* If a priority hasn't been specified, use the default value. */
|
|
if ($priority === null) {
|
|
$priority = $this->_priority;
|
|
}
|
|
|
|
/* Abort early if the priority is above the maximum logging level. */
|
|
if (!$this->_isMasked($priority)) {
|
|
return false;
|
|
}
|
|
|
|
/* If the connection isn't open and can't be opened, return failure. */
|
|
if (!$this->_opened && !$this->open()) {
|
|
return false;
|
|
}
|
|
|
|
/* If we don't already have our statement object yet, create it. */
|
|
if (!is_object($this->_statement) && !$this->_prepareStatement()) {
|
|
return false;
|
|
}
|
|
|
|
/* Extract the string representation of the message. */
|
|
$message = $this->_extractMessage($message);
|
|
|
|
/* Build our set of values for this log entry. */
|
|
$id = $this->_db->nextId($this->_sequence);
|
|
$values = array($id, $this->_ident, $priority, $message);
|
|
|
|
/* Execute the SQL query for this log entry insertion. */
|
|
$result =& $this->_db->execute($this->_statement, $values);
|
|
if (DB::isError($result)) {
|
|
return false;
|
|
}
|
|
|
|
$this->_announce(array('priority' => $priority, 'message' => $message));
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Prepare the SQL insertion statement.
|
|
*
|
|
* @return boolean True if the statement was successfully created.
|
|
*
|
|
* @access private
|
|
* @since Log 1.9.1
|
|
*/
|
|
function _prepareStatement()
|
|
{
|
|
$this->_statement = $this->_db->prepare($this->_sql);
|
|
|
|
/* Return success if we didn't generate an error. */
|
|
return (DB::isError($this->_statement) === false);
|
|
}
|
|
}
|