Перенос классов в файлы

Классы работы с базой данных, кеша, датастора переносим в отдельные файлы. Обычный require, но надо добавить require только при выбранности данного вида кеширования.

library/includes/cache/apc.php

@@ -0,0 +1,65 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class cache_apc extends cache_common
+{
+	var $used   = true;
+	var $engine = 'APC';
+	var $prefix = null;
+
+	function cache_apc ($prefix = null)
+	{
+		if (!$this->is_installed())
+		{
+			die('Error: APC extension not installed');
+		}
+		$this->dbg_enabled = sql_dbg_enabled();
+		$this->prefix = $prefix;
+	}
+
+	function get ($name, $get_miss_key_callback = '', $ttl = 0)
+	{
+		$this->cur_query = "cache->get('$name')";
+		$this->debug('start');
+		$this->debug('stop');
+		$this->cur_query = null;
+		$this->num_queries++;
+
+		return apc_fetch($this->prefix . $name);
+	}
+
+	function set ($name, $value, $ttl = 0)
+	{
+		$this->cur_query = "cache->set('$name')";
+		$this->debug('start');
+		$this->debug('stop');
+		$this->cur_query = null;
+		$this->num_queries++;
+
+		return apc_store($this->prefix . $name, $value, $ttl);
+	}
+
+	function rm ($name = '')
+	{
+		if ($name)
+		{
+			$this->cur_query = "cache->rm('$name')";
+			$this->debug('start');
+			$this->debug('stop');
+			$this->cur_query = null;
+			$this->num_queries++;
+
+			return apc_delete($this->prefix . $name);
+		}
+		else
+		{
+			return apc_clear_cache();
+		}
+	}
+
+	function is_installed ()
+	{
+		return function_exists('apc_fetch');
+	}
+}

library/includes/cache/common.php

@@ -0,0 +1,84 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class cache_common
+{
+	var $used = false;
+	/**
+	 * Returns value of variable
+	 */
+	function get ($name, $get_miss_key_callback = '', $ttl = 604800)
+	{
+		if ($get_miss_key_callback) return $get_miss_key_callback($name);
+		return is_array($name) ? array() : false;
+	}
+	/**
+	 * Store value of variable
+	 */
+	function set ($name, $value, $ttl = 604800)
+	{
+		return false;
+	}
+	/**
+	 * Remove variable
+	 */
+	function rm ($name = '')
+	{
+		return false;
+	}
+
+	var $num_queries    = 0;
+	var $sql_starttime  = 0;
+	var $sql_inittime   = 0;
+	var $sql_timetotal  = 0;
+	var $cur_query_time = 0;
+
+	var $dbg            = array();
+	var $dbg_id         = 0;
+	var $dbg_enabled    = false;
+	var $cur_query      = null;
+
+	function debug ($mode, $cur_query = null)
+	{
+		if (!$this->dbg_enabled) return;
+
+		$id  =& $this->dbg_id;
+		$dbg =& $this->dbg[$id];
+
+		if ($mode == 'start')
+		{
+			$this->sql_starttime = utime();
+
+			$dbg['sql']  = isset($cur_query) ? short_query($cur_query) : short_query($this->cur_query);
+			$dbg['src']  = $this->debug_find_source();
+			$dbg['file'] = $this->debug_find_source('file');
+			$dbg['line'] = $this->debug_find_source('line');
+			$dbg['time'] = '';
+		}
+		else if ($mode == 'stop')
+		{
+			$this->cur_query_time = utime() - $this->sql_starttime;
+			$this->sql_timetotal += $this->cur_query_time;
+			$dbg['time'] = $this->cur_query_time;
+			$id++;
+		}
+	}
+
+	function debug_find_source ($mode = '')
+	{
+		foreach (debug_backtrace() as $trace)
+		{
+			if ($trace['file'] !== __FILE__)
+			{
+				switch ($mode)
+				{
+					case 'file': return $trace['file'];
+					case 'line': return $trace['line'];
+					default: return hide_bb_path($trace['file']) .'('. $trace['line'] .')';
+				}
+			}
+		}
+		return 'src not found';
+	}
+}

library/includes/cache/file.php

@@ -0,0 +1,136 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class cache_file extends cache_common
+{
+	var $used   = true;
+	var $engine = 'Filecache';
+	var $dir    = null;
+	var $prefix = null;
+
+	function cache_file ($dir, $prefix = null)
+	{
+		$this->dir    = $dir;
+		$this->prefix = $prefix;
+		$this->dbg_enabled = sql_dbg_enabled();
+	}
+
+	function get ($name, $get_miss_key_callback = '', $ttl = 0)
+	{
+		$filename = $this->dir . clean_filename($this->prefix . $name) . '.php';
+
+		$this->cur_query = "cache->set('$name')";
+		$this->debug('start');
+
+		if (file_exists($filename))
+		{
+			require($filename);
+		}
+
+		$this->debug('stop');
+		$this->cur_query = null;
+
+		return (!empty($filecache['value'])) ? $filecache['value'] : false;
+	}
+
+	function set ($name, $value, $ttl = 86400)
+	{
+		if (!function_exists('var_export'))
+		{
+			return false;
+		}
+
+		$this->cur_query = "cache->set('$name')";
+		$this->debug('start');
+
+		$filename   = $this->dir . clean_filename($this->prefix . $name) . '.php';
+		$expire     = TIMENOW + $ttl;
+		$cache_data = array(
+			'expire'  => $expire,
+			'value'   => $value,
+		);
+
+		$filecache = "<?php\n";
+		$filecache .= "if (!defined('BB_ROOT')) die(basename(__FILE__));\n";
+		$filecache .= '$filecache = ' . var_export($cache_data, true) . ";\n";
+		$filecache .= '?>';
+
+		$this->debug('stop');
+		$this->cur_query = null;
+		$this->num_queries++;
+
+		return (bool) file_write($filecache, $filename, false, true, true);
+	}
+
+	function rm ($name = '')
+	{
+		$clear = false;
+		if ($name)
+		{
+			$this->cur_query = "cache->rm('$name')";
+			$this->debug('start');
+
+			$filename = $this->dir . clean_filename($this->prefix . $name) . '.php';
+			if (file_exists($filename))
+			{
+				$clear = (bool) unlink($filename);
+			}
+
+			$this->debug('stop');
+			$this->cur_query = null;
+			$this->num_queries++;
+		}
+		else
+		{
+			if (is_dir($this->dir))
+			{
+				if ($dh = opendir($this->dir))
+				{
+					while (($file = readdir($dh)) !== false)
+					{
+						if ($file != "." && $file != "..")
+						{
+							$filename = $this->dir . $file;
+
+							unlink($filename);
+							$clear = true;
+						}
+					}
+					closedir($dh);
+				}
+			}
+		}
+		return $clear;
+	}
+
+	function gc ($expire_time = TIMENOW)
+	{
+		$clear = false;
+
+		if (is_dir($this->dir))
+		{
+			if ($dh = opendir($this->dir))
+			{
+				while (($file = readdir($dh)) !== false)
+				{
+					if ($file != "." && $file != "..")
+					{
+						$filename = $this->dir . $file;
+
+						require($filename);
+
+						if(!empty($filecache['expire']) && ($filecache['expire'] < $expire_time))
+						{
+							unlink($filename);
+							$clear = true;
+						}
+					}
+				}
+				closedir($dh);
+			}
+		}
+
+		return $clear;
+	}
+}

library/includes/cache/memcache.php

@@ -0,0 +1,100 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class cache_memcache extends cache_common
+{
+	var $used      = true;
+	var $engine    = 'Memcache';
+	var $cfg       = null;
+	var $prefix    = null;
+	var $memcache  = null;
+	var $connected = false;
+
+	function cache_memcache ($cfg, $prefix = null)
+	{
+		if (!$this->is_installed())
+		{
+			die('Error: Memcached extension not installed');
+		}
+
+		$this->cfg      = $cfg;
+		$this->prefix   = $prefix;
+		$this->memcache = new Memcache;
+		$this->dbg_enabled = sql_dbg_enabled();
+	}
+
+	function connect ()
+	{
+		$connect_type = ($this->cfg['pconnect']) ? 'pconnect' : 'connect';
+
+		$this->cur_query = $connect_type .' '. $this->cfg['host'] .':'. $this->cfg['port'];
+		$this->debug('start');
+
+		if (@$this->memcache->$connect_type($this->cfg['host'], $this->cfg['port']))
+		{
+			$this->connected = true;
+		}
+
+		if (DBG_LOG) dbg_log(' ', 'CACHE-connect'. ($this->connected ? '' : '-FAIL'));
+
+		if (!$this->connected && $this->cfg['con_required'])
+		{
+			die('Could not connect to memcached server');
+		}
+
+		$this->debug('stop');
+		$this->cur_query = null;
+	}
+
+	function get ($name, $get_miss_key_callback = '', $ttl = 0)
+	{
+		if (!$this->connected) $this->connect();
+
+		$this->cur_query = "cache->get('$name')";
+		$this->debug('start');
+		$this->debug('stop');
+		$this->cur_query = null;
+		$this->num_queries++;
+
+		return ($this->connected) ? $this->memcache->get($this->prefix . $name) : false;
+	}
+
+	function set ($name, $value, $ttl = 0)
+	{
+		if (!$this->connected) $this->connect();
+
+		$this->cur_query = "cache->set('$name')";
+		$this->debug('start');
+		$this->debug('stop');
+		$this->cur_query = null;
+		$this->num_queries++;
+
+		return ($this->connected) ? $this->memcache->set($this->prefix . $name, $value, false, $ttl) : false;
+	}
+
+	function rm ($name = '')
+	{
+		if (!$this->connected) $this->connect();
+
+		if ($name)
+		{
+			$this->cur_query = "cache->rm('$name')";
+			$this->debug('start');
+			$this->debug('stop');
+			$this->cur_query = null;
+			$this->num_queries++;
+
+			return ($this->connected) ? $this->memcache->delete($this->prefix . $name, 0) : false;
+		}
+		else
+		{
+			return ($this->connected) ? $this->memcache->flush() : false;
+		}
+	}
+
+	function is_installed ()
+	{
+		return class_exists('Memcache');
+	}
+}

library/includes/cache/redis.php

@@ -0,0 +1,109 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class cache_redis extends cache_common
+{
+	var $used      = true;
+	var $engine    = 'Redis';
+	var $cfg       = null;
+	var $redis     = null;
+	var $prefix    = null;
+	var $connected = false;
+
+	function cache_redis ($cfg, $prefix = null)
+	{
+		if (!$this->is_installed())
+		{
+			die('Error: Redis extension not installed');
+		}
+
+		$this->cfg    = $cfg;
+		$this->prefix = $prefix;
+		$this->redis  = new Redis();
+		$this->dbg_enabled = sql_dbg_enabled();
+	}
+
+	function connect ()
+	{
+		$this->cur_query = 'connect '. $this->cfg['host'] .':'. $this->cfg['port'];
+		$this->debug('start');
+
+		if (@$this->redis->connect($this->cfg['host'], $this->cfg['port']))
+		{
+			$this->connected = true;
+		}
+
+		if (!$this->connected && $this->cfg['con_required'])
+		{
+			die('Could not connect to redis server');
+		}
+
+		$this->debug('stop');
+		$this->cur_query = null;
+	}
+
+	function get ($name, $get_miss_key_callback = '', $ttl = 0)
+	{
+		if (!$this->connected) $this->connect();
+
+		$this->cur_query = "cache->get('$name')";
+		$this->debug('start');
+		$this->debug('stop');
+		$this->cur_query = null;
+		$this->num_queries++;
+
+		return ($this->connected) ? unserialize($this->redis->get($this->prefix . $name)) : false;
+	}
+
+	function set ($name, $value, $ttl = 0)
+	{
+		if (!$this->connected) $this->connect();
+
+		$this->cur_query = "cache->set('$name')";
+		$this->debug('start');
+
+		if ($this->redis->set($this->prefix . $name, serialize($value)))
+		{
+			if ($ttl > 0)
+			{
+				$this->redis->expire($this->prefix . $name, $ttl);
+			}
+
+			$this->debug('stop');
+			$this->cur_query = null;
+			$this->num_queries++;
+
+			return true;
+		}
+		else
+		{
+			return false;
+		}
+	}
+
+	function rm ($name = '')
+	{
+		if (!$this->connected) $this->connect();
+
+		if ($name)
+		{
+			$this->cur_query = "cache->rm('$name')";
+			$this->debug('start');
+			$this->debug('stop');
+			$this->cur_query = null;
+			$this->num_queries++;
+
+			return ($this->connected) ? $this->redis->del($this->prefix . $name) : false;
+		}
+		else
+		{
+			return ($this->connected) ? $this->redis->flushdb() : false;
+		}
+	}
+
+	function is_installed ()
+	{
+		return class_exists('Redis');
+	}
+}

library/includes/cache/sqlite.php

@@ -0,0 +1,110 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class cache_sqlite extends cache_common
+{
+	var $used   = true;
+	var $db     = null;
+	var $prefix = null;
+	var $cfg    = array(
+		'db_file_path' => '/path/to/cache.db.sqlite',
+		'table_name'   => 'cache',
+		'table_schema' => 'CREATE TABLE cache (
+	                cache_name        VARCHAR(255),
+	                cache_expire_time INT,
+	                cache_value       TEXT,
+	                PRIMARY KEY (cache_name)
+	        )',
+		'pconnect'     => true,
+		'con_required' => true,
+		'log_name'     => 'CACHE',
+	);
+
+	function cache_sqlite ($cfg, $prefix = null)
+	{
+		$this->cfg = array_merge($this->cfg, $cfg);
+		$this->db = new sqlite_common($this->cfg);
+		$this->prefix = $prefix;
+	}
+
+	function get ($name, $get_miss_key_callback = '', $ttl = 604800)
+	{
+		if (empty($name))
+		{
+			return is_array($name) ? array() : false;
+		}
+		$this->db->shard($name);
+		$cached_items = array();
+		$this->prefix_len = strlen($this->prefix);
+		$this->prefix_sql = sqlite_escape_string($this->prefix);
+
+		$name_ary = $name_sql = (array) $name;
+		array_deep($name_sql, 'sqlite_escape_string');
+
+		// get available items
+		$rowset = $this->db->fetch_rowset("
+			SELECT cache_name, cache_value
+			FROM ". $this->cfg['table_name'] ."
+			WHERE cache_name IN('$this->prefix_sql". join("','$this->prefix_sql", $name_sql) ."') AND cache_expire_time > ". TIMENOW ."
+			LIMIT ". count($name) ."
+		");
+
+		$this->db->debug('start', 'unserialize()');
+		foreach ($rowset as $row)
+		{
+			$cached_items[substr($row['cache_name'], $this->prefix_len)] = unserialize($row['cache_value']);
+		}
+		$this->db->debug('stop');
+
+		// get miss items
+		if ($get_miss_key_callback AND $miss_key = array_diff($name_ary, array_keys($cached_items)))
+		{
+			foreach ($get_miss_key_callback($miss_key) as $k => $v)
+			{
+				$this->set($this->prefix . $k, $v, $ttl);
+				$cached_items[$k] = $v;
+			}
+		}
+		// return
+		if (is_array($this->prefix . $name))
+		{
+			return $cached_items;
+		}
+		else
+		{
+			return isset($cached_items[$name]) ? $cached_items[$name] : false;
+		}
+	}
+
+	function set ($name, $value, $ttl = 604800)
+	{
+		$this->db->shard($this->prefix . $name);
+		$name_sql  = sqlite_escape_string($this->prefix . $name);
+		$expire    = TIMENOW + $ttl;
+		$value_sql = sqlite_escape_string(serialize($value));
+
+		$result = $this->db->query("REPLACE INTO ". $this->cfg['table_name'] ." (cache_name, cache_expire_time, cache_value) VALUES ('$name_sql', $expire, '$value_sql')");
+		return (bool) $result;
+	}
+
+	function rm ($name = '')
+	{
+		if ($name)
+		{
+			$this->db->shard($this->prefix . $name);
+			$result = $this->db->query("DELETE FROM ". $this->cfg['table_name'] ." WHERE cache_name = '". sqlite_escape_string($this->prefix . $name) ."'");
+		}
+		else
+		{
+			$result = $this->db->query("DELETE FROM ". $this->cfg['table_name']);
+		}
+		return (bool) $result;
+	}
+
+	function gc ($expire_time = TIMENOW)
+	{
+		$result = $this->db->query("DELETE FROM ". $this->cfg['table_name'] ." WHERE cache_expire_time < $expire_time");
+		return ($result) ? $this->db->changes() : 0;
+	}
+}

library/includes/cache/sqlite_common.php

@@ -0,0 +1,181 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class sqlite_common extends cache_common
+{
+	var $cfg = array(
+		'db_file_path' => 'sqlite.db',
+		'table_name'   => 'table_name',
+		'table_schema' => 'CREATE TABLE table_name (...)',
+		'pconnect'     => true,
+		'con_required' => true,
+		'log_name'     => 'SQLite',
+		'shard_type'   => 'none',     #  none, string, int (тип перевичного ключа для шардинга)
+		'shard_val'    => 0,          #  для string - кол. начальных символов, для int - делитель (будет использован остаток от деления)
+	);
+	var $engine    = 'SQLite';
+	var $dbh       = null;
+	var $connected = false;
+	var $shard_val = false;
+
+	var $table_create_attempts = 0;
+
+	function sqlite_common ($cfg)
+	{
+		$this->cfg = array_merge($this->cfg, $cfg);
+		$this->dbg_enabled = sql_dbg_enabled();
+	}
+
+	function connect ()
+	{
+		$this->cur_query = ($this->dbg_enabled) ? 'connect to: '. $this->cfg['db_file_path'] : 'connect';
+		$this->debug('start');
+
+		if (@$this->dbh = new SQLite3($this->cfg['db_file_path']))
+		{
+			$this->connected = true;
+		}
+
+		if (DBG_LOG) dbg_log(' ', $this->cfg['log_name'] .'-connect'. ($this->connected ? '' : '-FAIL'));
+
+		if (!$this->connected && $this->cfg['con_required'])
+		{
+			trigger_error('SQLite not connected', E_USER_ERROR);
+		}
+
+		$this->debug('stop');
+		$this->cur_query = null;
+	}
+
+	function create_table ()
+	{
+		$this->table_create_attempts++;
+		return $this->dbh->query($this->cfg['table_schema']);
+	}
+
+	function shard ($name)
+	{
+		$type = $this->cfg['shard_type'];
+
+		if ($type == 'none') return;
+		if (is_array($name))  trigger_error('cannot shard: $name is array', E_USER_ERROR);
+
+		// define shard_val
+		if ($type == 'string')
+		{
+			$shard_val = substr($name, 0, $this->cfg['shard_val']);
+		}
+		else
+		{
+			$shard_val = $name % $this->cfg['shard_val'];
+		}
+		// все запросы должны быть к одному и тому же шарду
+		if ($this->shard_val !== false)
+		{
+			if ($shard_val != $this->shard_val)
+			{
+				trigger_error("shard cannot be reassigned. [{$this->shard_val}, $shard_val, $name]", E_USER_ERROR);
+			}
+			else
+			{
+				return;
+			}
+		}
+		$this->shard_val = $shard_val;
+		$this->cfg['db_file_path'] = str_replace('*', $shard_val, $this->cfg['db_file_path']);
+	}
+
+	function query ($query)
+	{
+		if (!$this->connected) $this->connect();
+
+		$this->cur_query = $query;
+		$this->debug('start');
+
+		if (!$result = @$this->dbh->query($query))
+		{
+			$rowsresult = $this->dbh->query("PRAGMA table_info({$this->cfg['table_name']})");
+			$rowscount = 0;
+			while ($row = $rowsresult->fetchArray(SQLITE3_ASSOC))
+			{
+				$rowscount++;
+			}
+			if (!$this->table_create_attempts && !$rowscount)
+			{
+				if ($this->create_table())
+				{
+					$result = $this->dbh->query($query);
+				}
+			}
+			if (!$result)
+			{
+				$this->trigger_error($this->get_error_msg());
+			}
+		}
+
+		$this->debug('stop');
+		$this->cur_query = null;
+
+		$this->num_queries++;
+
+		return $result;
+	}
+
+	function fetch_row ($query)
+	{
+		$result = $this->query($query);
+		return is_resource($result) ? $result->fetchArray(SQLITE3_ASSOC) : false;
+	}
+
+	function fetch_rowset ($query)
+	{
+		$result = $this->query($query);
+		$rowset = array();
+		while ($row = $result->fetchArray(SQLITE3_ASSOC))
+		{
+			$rowset[] = $row;
+		}
+		return $rowset;
+	}
+
+	function changes ()
+	{
+		return is_resource($this->dbh) ? $this->dbh->changes() : 0;
+	}
+
+	function escape ($str)
+	{
+		return sqlite_escape_string($str);
+	}
+
+	function get_error_msg ()
+	{
+		return 'SQLite error #'. ($err_code = $this->dbh->lastErrorCode()) .': '. $this->dbh->lastErrorMsg();
+	}
+
+	function rm ($name = '')
+	{
+		if ($name)
+		{
+			$this->db->shard($this->prefix . $name);
+			$result = $this->db->query("DELETE FROM ". $this->cfg['table_name'] ." WHERE cache_name = '". sqlite_escape_string($this->prefix . $name) ."'");
+		}
+		else
+		{
+			$result = $this->db->query("DELETE FROM ". $this->cfg['table_name']);
+		}
+		return (bool) $result;
+	}
+
+	function gc ($expire_time = TIMENOW)
+	{
+		$result = $this->db->query("DELETE FROM ". $this->cfg['table_name'] ." WHERE cache_expire_time < $expire_time");
+		return ($result) ? sqlite_changes($this->db->dbh) : 0;
+	}
+
+	function trigger_error ($msg = 'DB Error')
+	{
+		if (error_reporting()) trigger_error($msg, E_USER_ERROR);
+	}
+}

library/includes/cache/xcache.php

@@ -0,0 +1,67 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class cache_xcache extends cache_common
+{
+	var $used   = true;
+	var $engine = 'XCache';
+	var $prefix = null;
+
+	function cache_xcache ($prefix = null)
+	{
+		if (!$this->is_installed())
+		{
+			die('Error: XCache extension not installed');
+		}
+		$this->dbg_enabled = sql_dbg_enabled();
+		$this->prefix = $prefix;
+	}
+
+	function get ($name, $get_miss_key_callback = '', $ttl = 0)
+	{
+		$this->cur_query = "cache->get('$name')";
+		$this->debug('start');
+		$this->debug('stop');
+		$this->cur_query = null;
+		$this->num_queries++;
+
+		return xcache_get($this->prefix . $name);
+	}
+
+	function set ($name, $value, $ttl = 0)
+	{
+		$this->cur_query = "cache->set('$name')";
+		$this->debug('start');
+		$this->debug('stop');
+		$this->cur_query = null;
+		$this->num_queries++;
+
+		return xcache_set($this->prefix . $name, $value, $ttl);
+	}
+
+	function rm ($name = '')
+	{
+		if ($name)
+		{
+			$this->cur_query = "cache->rm('$name')";
+			$this->debug('start');
+			$this->debug('stop');
+			$this->cur_query = null;
+			$this->num_queries++;
+
+			return xcache_unset($this->prefix . $name);
+		}
+		else
+		{
+			xcache_clear_cache(XC_TYPE_PHP, 0);
+			xcache_clear_cache(XC_TYPE_VAR, 0);
+			return;
+		}
+	}
+
+	function is_installed ()
+	{
+		return function_exists('xcache_get');
+	}
+}