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Changed the template compiler to work on streams. Should be a bit faster.

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git-svn-id: file:///svn/phpbb/trunk@8653 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Marek A. R 2008-06-13 17:57:47 +00:00
parent 50dd4c183a
commit c44d2edc4a
2 changed files with 164 additions and 282 deletions
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357
phpBB/includes/functions_template.php
View file

@ -17,215 +17,100 @@ if (!defined('IN_PHPBB'))
}
/**
* Extension of template class - Functions needed for compiling templates only.
*
* psoTFX, phpBB Development Team - Completion of file caching, decompilation
* routines and implementation of conditionals/keywords and associated changes
*
* The interface was inspired by PHPLib templates, and the template file (formats are
* quite similar)
*
* The keyword/conditional implementation is currently based on sections of code from
* the Smarty templating engine (c) 2001 ispi of Lincoln, Inc. which is released
* (on its own and in whole) under the LGPL. Section 3 of the LGPL states that any code
* derived from an LGPL application may be relicenced under the GPL, this applies
* to this source
*
* DEFINE directive inspired by a request by Cyberalien
*
* @package phpBB3
*/
class template_compile
* The template filter that does the actual compilation
* @see tempalte_compile
*
*/
class template_filter extends php_user_filter
{
private $template;
private $regex = '~<!-- ([A-Z][A-Z_0-9]+)(?: (.*?) ?)?-->|{((?:[a-z][a-z_0-9]+\.)*[A-Z][A-Z_0-9]+)}~';
private $blocks = array();
// Various storage arrays
private $block_names = array();
private $block_else_level = array();
/**
* constuctor
*/
function __construct(template &$template)
function filter($in, $out, &$consumed/*, $closing*/)
{
$this->template = &$template;
while ($bucket = stream_bucket_make_writeable($in))
{
$bucket->data = $this->compile($bucket->data);
$consumed += $bucket->datalen;
stream_bucket_append($out, $bucket);
}
return PSFS_PASS_ON;
}
/**
* Load template source from file
* @access private
*/
public function _tpl_load_file($handle, $store_in_db = false)
private function compile($data)
{
// Try and open template for read
if (!file_exists($this->template->files[$handle]))
{
trigger_error("template->_tpl_load_file(): File {$this->template->files[$handle]} does not exist or is empty", E_USER_ERROR);
}
$this->template->compiled_code[$handle] = $this->compile(trim(@file_get_contents($this->template->files[$handle])));
// Actually compile the code now.
$this->compile_write($handle, $this->template->compiled_code[$handle]);
// Store in database if required...
if ($store_in_db)
{
global $db, $user;
$sql_ary = array(
'template_id' => $user->theme['template_id'],
'template_filename' => $this->template->filename[$handle],
'template_included' => '',
'template_mtime' => time(),
'template_data' => trim(@file_get_contents($this->template->files[$handle])),
);
$sql = 'INSERT INTO ' . STYLES_TEMPLATE_DATA_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary);
$db->sql_query($sql);
}
return preg_replace_callback($this->regex, array($this, 'replace'), $data);
}
/**
* Remove any PHP tags that do not belong, these regular expressions are derived from
* the ones that exist in zend_language_scanner.l
* @access private
*/
private function remove_php_tags(&$code)
private function replace($matches)
{
// This matches the information gathered from the internal PHP lexer
$match = array(
'#<([\?%])=?.*?\1>#s',
'#<script\s+language\s*=\s*(["\']?)php\1\s*>.*?</script\s*>#s',
'#<\?php(?:\r\n?|[ \n\t]).*?\?>#s'
);
$code = preg_replace($match, '', $code);
}
/**
* The all seeing all doing compile method. Parts are inspired by or directly from Smarty
* @access private
*/
public function compile($code, $no_echo = false, $echo_var = '')
{
global $config;
if ($echo_var)
if (isset($matches[3]))
{
global $$echo_var;
return $this->compile_var_tags($matches[0]);
}
// Remove any "loose" php ... we want to give admins the ability
// to switch on/off PHP for a given template. Allowing unchecked
// php is a no-no. There is a potential issue here in that non-php
// content may be removed ... however designers should use entities
// if they wish to display < and >
$this->remove_php_tags($code);
// Pull out all block/statement level elements and separate plain text
preg_match_all('#<!-- PHP -->(.*?)<!-- ENDPHP -->#s', $code, $matches);
$php_blocks = $matches[1];
$code = preg_replace('#<!-- PHP -->.*?<!-- ENDPHP -->#s', '<!-- PHP -->', $code);
preg_match_all('#<!-- INCLUDE ([a-zA-Z0-9\_\-\+\./]+) -->#', $code, $matches);
$include_blocks = $matches[1];
$code = preg_replace('#<!-- INCLUDE [a-zA-Z0-9\_\-\+\./]+ -->#', '<!-- INCLUDE -->', $code);
preg_match_all('#<!-- INCLUDEPHP ([a-zA-Z0-9\_\-\+\./]+) -->#', $code, $matches);
$includephp_blocks = $matches[1];
$code = preg_replace('#<!-- INCLUDEPHP [a-zA-Z0-9\_\-\+\./]+ -->#', '<!-- INCLUDEPHP -->', $code);
preg_match_all('#<!-- ([^<].*?) (.*?)? ?-->#', $code, $blocks, PREG_SET_ORDER);
$text_blocks = preg_split('#<!-- [^<].*? (?:.*?)? ?-->#', $code);
for ($i = 0, $j = sizeof($text_blocks); $i < $j; $i++)
switch ($matches[1])
{
$this->compile_var_tags($text_blocks[$i]);
case 'BEGIN':
$this->block_else_level[] = false;
return '<?php ' . $this->compile_tag_block($matches[2]) . ' ?>';
break;
case 'BEGINELSE':
$this->block_else_level[sizeof($this->block_else_level) - 1] = true;
return '<?php }} else { ?>';
break;
case 'END':
array_pop($this->block_names);
return '<?php ' . ((array_pop($this->block_else_level)) ? '}' : '}}') . ' ?>';
break;
case 'IF':
return '<?php ' . $this->compile_tag_if($matches[2], false) . ' ?>';
break;
case 'ELSE':
return '<?php } else { ?>';
break;
case 'ELSEIF':
return '<?php ' . $this->compile_tag_if($matches[2], true) . ' ?>';
break;
case 'ENDIF':
return '<?php } ?>';
break;
case 'DEFINE':
return '<?php ' . $this->compile_tag_define($matches[2], true) . ' ?>';
break;
case 'UNDEFINE':
return '<?php ' . $this->compile_tag_define($matches[2], false) . ' ?>';
break;
case 'INCLUDE':
return '<?php ' . $this->compile_tag_include($matches[2]) . ' ?>';
break;
/* case 'INCLUDEPHP':
$this->compile_blocks[] = ($config['tpl_allow_php']) ? '<?php ' . $this->compile_tag_include_php(array_shift($includephp_blocks)) . ' ?>' : '';
break;
case 'PHP':
$this->compile_blocks[] = ($config['tpl_allow_php']) ? '<?php ' . array_shift($php_blocks) . ' ?>' : '';
break;
*/
default:
return $matches[0];
break;
}
$compile_blocks = array();
for ($curr_tb = 0, $tb_size = sizeof($blocks); $curr_tb < $tb_size; $curr_tb++)
{
$block_val = &$blocks[$curr_tb];
switch ($block_val[1])
{
case 'BEGIN':
$this->block_else_level[] = false;
$compile_blocks[] = '<?php ' . $this->compile_tag_block($block_val[2]) . ' ?>';
break;
case 'BEGINELSE':
$this->block_else_level[sizeof($this->block_else_level) - 1] = true;
$compile_blocks[] = '<?php }} else { ?>';
break;
case 'END':
array_pop($this->block_names);
$compile_blocks[] = '<?php ' . ((array_pop($this->block_else_level)) ? '}' : '}}') . ' ?>';
break;
case 'IF':
$compile_blocks[] = '<?php ' . $this->compile_tag_if($block_val[2], false) . ' ?>';
break;
case 'ELSE':
$compile_blocks[] = '<?php } else { ?>';
break;
case 'ELSEIF':
$compile_blocks[] = '<?php ' . $this->compile_tag_if($block_val[2], true) . ' ?>';
break;
case 'ENDIF':
$compile_blocks[] = '<?php } ?>';
break;
case 'DEFINE':
$compile_blocks[] = '<?php ' . $this->compile_tag_define($block_val[2], true) . ' ?>';
break;
case 'UNDEFINE':
$compile_blocks[] = '<?php ' . $this->compile_tag_define($block_val[2], false) . ' ?>';
break;
case 'INCLUDE':
$temp = array_shift($include_blocks);
$compile_blocks[] = '<?php ' . $this->compile_tag_include($temp) . ' ?>';
$this->template->_tpl_include($temp, false);
break;
case 'INCLUDEPHP':
$compile_blocks[] = ($config['tpl_allow_php']) ? '<?php ' . $this->compile_tag_include_php(array_shift($includephp_blocks)) . ' ?>' : '';
break;
case 'PHP':
$compile_blocks[] = ($config['tpl_allow_php']) ? '<?php ' . array_shift($php_blocks) . ' ?>' : '';
break;
default:
$this->compile_var_tags($block_val[0]);
$trim_check = trim($block_val[0]);
$compile_blocks[] = (!$no_echo) ? ((!empty($trim_check)) ? $block_val[0] : '') : ((!empty($trim_check)) ? $block_val[0] : '');
break;
}
}
$template_php = '';
for ($i = 0, $size = sizeof($text_blocks); $i < $size; $i++)
{
$trim_check_text = trim($text_blocks[$i]);
$template_php .= (!$no_echo) ? (($trim_check_text != '') ? $text_blocks[$i] : '') . ((isset($compile_blocks[$i])) ? $compile_blocks[$i] : '') : (($trim_check_text != '') ? $text_blocks[$i] : '') . ((isset($compile_blocks[$i])) ? $compile_blocks[$i] : '');
}
// There will be a number of occasions where we switch into and out of
// PHP mode instantaneously. Rather than "burden" the parser with this
// we'll strip out such occurences, minimising such switching
$template_php = str_replace(' ?><?php ', ' ', $template_php);
return (!$no_echo) ? $template_php : "\$$echo_var .= '" . $template_php . "'";
return '';
}
/**
@ -267,7 +152,7 @@ class template_compile
$text_blocks = preg_replace('#\{([a-z0-9\-_]*)\}#is', "<?php echo (isset(\$this->_rootref['\\1'])) ? \$this->_rootref['\\1'] : ''; ?>", $text_blocks);
$text_blocks = preg_replace('#\{\$([a-z0-9\-_]*)\}#is', "<?php echo (isset(\$this->_tpldata['DEFINE']['.']['\\1'])) ? \$this->_tpldata['DEFINE']['.']['\\1'] : ''; ?>", $text_blocks);
return;
return $text_blocks;
}
/**
@ -291,6 +176,7 @@ class template_compile
// foo(-2) : Will start the loop two entries from the end
// foo(3,4) : Will start the loop on the fourth entry and end it on the fifth
// foo(3,-4) : Will start the loop on the fourth entry and end it four from last
$match = array();
if (preg_match('#^([^()]*)\(([\-\d]+)(?:,([\-\d]+))?\)$#', $tag_args, $match))
{
$tag_args = $match[1];
@ -382,6 +268,7 @@ class template_compile
private function compile_tag_if($tag_args, $elseif)
{
// Tokenize args for 'if' tag.
$match = array();
preg_match_all('/(?:
"[^"\\\\]*(?:\\\\.[^"\\\\]*)*" |
\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\' |
@ -485,6 +372,7 @@ class template_compile
// no break
default:
$varrefs = array();
if (preg_match('#^((?:[a-z0-9\-_]+\.)+)?(\$)?(?=[A-Z])([A-Z0-9\-_]+)#s', $token, $varrefs))
{
$token = (!empty($varrefs[1])) ? $this->generate_block_data_ref(substr($varrefs[1], 0, -1), true, $varrefs[2]) . '[\'' . $varrefs[3] . '\']' : (($varrefs[2]) ? '$this->_tpldata[\'DEFINE\'][\'.\'][\'' . $varrefs[3] . '\']' : '$this->_rootref[\'' . $varrefs[3] . '\']');
@ -529,6 +417,7 @@ class template_compile
*/
private function compile_tag_define($tag_args, $op)
{
$match = array();
preg_match('#^((?:[a-z0-9\-_]+\.)+)?\$(?=[A-Z])([A-Z0-9_\-]*)(?: = (\'?)([^\']*)(\'?))?$#', $tag_args, $match);
if (empty($match[2]) || (!isset($match[4]) && $op))
@ -554,6 +443,7 @@ class template_compile
}
else
{
$type = array();
preg_match('#true|false|\.#i', $match[4], $type);
switch (strtolower($type[0]))
@ -599,7 +489,7 @@ class template_compile
* This is from Smarty
* @access private
*/
private function _parse_is_expr($is_arg, array $tokens)
private function _parse_is_expr($is_arg, $tokens)
{
$expr_end = 0;
$negate_expr = false;
@ -670,7 +560,7 @@ class template_compile
* NOTE: expects a trailing "." on the namespace.
* @access private
*/
private function generate_block_varref($namespace, $varname, $echo = true, $defop = false)
function generate_block_varref($namespace, $varname, $echo = true, $defop = false)
{
// Strip the trailing period.
$namespace = substr($namespace, 0, -1);
@ -695,7 +585,7 @@ class template_compile
* NOTE: does not expect a trailing "." on the blockname.
* @access private
*/
private function generate_block_data_ref($blockname, $include_last_iterator, $defop = false)
function generate_block_data_ref($blockname, $include_last_iterator, $defop = false)
{
// Get an array of the blocks involved.
$blocks = explode('.', $blockname);
@ -728,26 +618,83 @@ class template_compile
return '$_'. $blocks[$blockcount - 1] . '_val[\''. $blocks[$blockcount]. '\']';
}
}
}
stream_filter_register('template', 'template_filter');
/**
* Extension of template class - Functions needed for compiling templates only.
*
* psoTFX, phpBB Development Team - Completion of file caching, decompilation
* routines and implementation of conditionals/keywords and associated changes
*
* The interface was inspired by PHPLib templates, and the template file (formats are
* quite similar)
*
* The keyword/conditional implementation is currently based on sections of code from
* the Smarty templating engine (c) 2001 ispi of Lincoln, Inc. which is released
* (on its own and in whole) under the LGPL. Section 3 of the LGPL states that any code
* derived from an LGPL application may be relicenced under the GPL, this applies
* to this source
*
* DEFINE directive inspired by a request by Cyberalien
*
* @package phpBB3
*/
class template_compile
{
private $template;
/**
* constuctor
*/
function __construct(template &$template)
{
$this->template = &$template;
}
/**
* Load template source from file
* @access public
*/
public function _tpl_load_file($handle/*, $store_in_db = false*/)
{
// Try and open template for read
if (!file_exists($this->template->files[$handle]))
{
trigger_error("template->_tpl_load_file(): File {$this->template->files[$handle]} does not exist or is empty", E_USER_ERROR);
}
// Actually compile the code now.
$this->compile_write($handle, $this->template->files[$handle]);
}
/**
* Write compiled file to cache directory
* @access private
*/
public function compile_write($handle, $data)
private function compile_write($handle, $source_file)
{
$filename = $this->template->cachepath . str_replace('/', '.', $this->template->filename[$handle]) . '.' . PHP_EXT;
if ($fp = @fopen($filename, 'wb'))
{
@flock($fp, LOCK_EX);
@fwrite($fp, $data);
@flock($fp, LOCK_UN);
@fclose($fp);
$source_handle = @fopen($source_file, 'rb');
$destination_handle = @fopen($filename, 'wb');
@chmod($filename, 0666);
if(!$source_handle || !$destination_handle)
{
return;
}
return;
stream_filter_append($destination_handle, 'template');
@flock($destination_handle, LOCK_EX);
@stream_copy_to_stream($source_handle, $destination_handle);
@flock($destination_handle, LOCK_UN);
@fclose($destination_handle);
@chmod($filename, 0666);
}
}

89
phpBB/includes/template.php
View file

@ -37,9 +37,6 @@ class template
public $files = array();
public $filename = array();
// this will hash handle names to the compiled/uncompiled code for that handle.
public $compiled_code = array();
/**
* Set template location
* @access public
@ -142,6 +139,8 @@ class template
public function display($handle, $include_once = true)
{
global $user, $phpbb_hook;
// $user _is_ used the included files.
$user;
if (!empty($phpbb_hook) && $phpbb_hook->call_hook(array(__CLASS__, __FUNCTION__), $handle, $include_once))
{
@ -151,22 +150,17 @@ class template
}
}
if (defined('IN_ERROR_HANDLER'))
/* if (defined('IN_ERROR_HANDLER'))
{
if ((E_NOTICE & error_reporting()) == E_NOTICE)
{
//error_reporting(error_reporting() ^ E_NOTICE);
}
}
}*/
if ($filename = $this->_tpl_load($handle))
{
($include_once) ? include_once($filename) : include($filename);
}
else
{
eval(' ?>' . $this->compiled_code[$handle] . '<?php ');
}
$filename = $this->_tpl_load($handle);
($include_once) ? include_once($filename) : include($filename);
return true;
}
@ -209,8 +203,6 @@ class template
return $filename;
}
global $db;
if (!class_exists('template_compile'))
{
include(PHPBB_ROOT_PATH . 'includes/functions_template.' . PHP_EXT);
@ -228,70 +220,11 @@ class template
if (!$user)
{
$compile->_tpl_load_file($handle);
return false;
}
if (isset($user->theme['template_storedb']) && $user->theme['template_storedb'])
{
$sql = 'SELECT *
FROM ' . STYLES_TEMPLATE_DATA_TABLE . '
WHERE template_id = ' . $user->theme['template_id'] . "
AND (template_filename = '" . $db->sql_escape($this->filename[$handle]) . "'
OR template_included " . $db->sql_like_expression($db->any_char . $this->filename[$handle] . ':' . $db->any_char) . ')';
$result = $db->sql_query($sql);
$row = $db->sql_fetchrow($result);
if ($row)
{
do
{
if ($row['template_mtime'] < filemtime(PHPBB_ROOT_PATH . 'styles/' . $user->theme['template_path'] . '/template/' . $row['template_filename']))
{
if ($row['template_filename'] == $this->filename[$handle])
{
$compile->_tpl_load_file($handle);
}
else
{
$this->files[$row['template_filename']] = $this->root . '/' . $row['template_filename'];
$compile->_tpl_load_file($row['template_filename']);
unset($this->compiled_code[$row['template_filename']]);
unset($this->files[$row['template_filename']]);
unset($this->filename[$row['template_filename']]);
}
}
if ($row['template_filename'] == $this->filename[$handle])
{
$this->compiled_code[$handle] = $compile->compile(trim($row['template_data']));
$compile->compile_write($handle, $this->compiled_code[$handle]);
}
else
{
// Only bother compiling if it doesn't already exist
if (!file_exists($this->cachepath . str_replace('/', '.', $row['template_filename']) . '.' . PHP_EXT))
{
$this->filename[$row['template_filename']] = $row['template_filename'];
$compile->compile_write($row['template_filename'], $compile->compile(trim($row['template_data'])));
unset($this->filename[$row['template_filename']]);
}
}
}
while ($row = $db->sql_fetchrow($result));
}
else
{
// Try to load from filesystem and instruct to insert into the styles table...
$compile->_tpl_load_file($handle, true);
return false;
}
$db->sql_freeresult($result);
return false;
return $filename;
}
$compile->_tpl_load_file($handle);
return false;
return $filename;
}
/**
@ -510,14 +443,16 @@ class template
if ($include)
{
global $user;
// $user _is_ used the included files.
$user;
if ($filename)
{
include($filename);
return;
}
eval(' ?>' . $this->compiled_code[$handle] . '<?php ');
}
}
}