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aschwarz
2023-07-25 19:16:12 +02:00
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<?php
/* ----------------------------------------------------------------------
MyOOS [Dumper]
http://www.oos-shop.de/
Copyright (c) 2013 - 2022 by the MyOOS Development Team.
----------------------------------------------------------------------
Based on:
MySqlDumper
http://www.mysqldumper.de
Copyright (C)2004-2011 Daniel Schlichtholz (admin@mysqldumper.de)
----------------------------------------------------------------------
Released under the GNU General Public License
---------------------------------------------------------------------- */
if (!defined('MOD_VERSION')) {
exit('No direct access.');
}
define('TPL_DEBUG', 0); // used if evaluationg of template fails
/***************************************************************************
* template.php
* -------------------
* begin : Saturday, Feb 13, 2001
* copyright : (C) 2001 The phpBB Group
* email : support@phpbb.com
*
* $Id: template.php 1330 2011-01-07 17:51:25Z dsb1971 $
*
*
***************************************************************************/
/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
***************************************************************************/
/**
* Template class. By Nathan Codding of the phpBB group.
* The interface was originally inspired by PHPLib templates,
* and the template file formats are quite similar.
*/
class MODTemplate
{
public $classname = 'MODTemplate';
// variable that holds all the data we'll be substituting into
// the compiled templates.
// ...
// This will end up being a multi-dimensional array like this:
// $this->_tpldata[block.][iteration#][child.][iteration#][child2.][iteration#][variablename] == value
// if it's a root-level variable, it'll be like this:
// $this->_tpldata[.][0][varname] == value
public $_tpldata = [];
// Hash of filenames for each template handle.
public $files = [];
// Root template directory.
public $root = '';
// this will hash handle names to the compiled code for that handle.
public $compiled_code = [];
// This will hold the uncompiled code for that handle.
public $uncompiled_code = [];
/**
* Constructor. Simply sets the root dir.
*/
public function __construct($root = '.')
{
$this->set_rootdir($root);
}
/**
* Destroys this template object. Should be called when you're done with it, in order
* to clear out the template data so you can load/parse a new template set.
*/
public function destroy()
{
$this->_tpldata = [];
}
/**
* Sets the template root directory for this Template object.
*/
public function set_rootdir($dir)
{
if (!is_dir($dir)) {
return false;
}
$this->root = $dir;
return true;
}
/**
* Sets the template filenames for handles. $filename_array
* should be a hash of handle => filename pairs.
*/
public function set_filenames($filename_array)
{
if (!is_array($filename_array)) {
return false;
}
reset($filename_array);
foreach ($filename_array as $handle => $filename) {
$this->files[$handle] = $this->make_filename($filename);
}
return true;
}
/**
* Load the file for the handle, compile the file,
* and run the compiled code. This will print out
* the results of executing the template.
*/
public function pparse($handle)
{
// Edit DSB: autimatically assign language vars
global $lang;
$this->assign_vars($lang);
if (!$this->loadfile($handle)) {
exit("Template->pparse(): Couldn't load template file for handle $handle");
}
// actually compile the template now.
if (!isset($this->compiled_code[$handle]) || empty($this->compiled_code[$handle])) {
// Actually compile the code now.
$this->compiled_code[$handle] = $this->compile($this->uncompiled_code[$handle]);
}
// Run the compiled code.
if (defined(TPL_DEBUG) && TPL_DEBUG > 0) {
echo '<pre>'.htmlspecialchars($this->compiled_code[$handle]).'</pre>';
}
eval($this->compiled_code[$handle]);
return true;
}
/**
* Inserts the uncompiled code for $handle as the
* value of $varname in the root-level. This can be used
* to effectively include a template in the middle of another
* template.
* Note that all desired assignments to the variables in $handle should be done
* BEFORE calling this function.
*/
public function assign_var_from_handle($varname, $handle)
{
if (!$this->loadfile($handle)) {
exit("Template->assign_var_from_handle(): Couldn't load template file for handle $handle");
}
// Compile it, with the "no echo statements" option on.
$_str = '';
$code = $this->compile($this->uncompiled_code[$handle], true, '_str');
// evaluate the variable assignment.
eval($code);
// assign the value of the generated variable to the given varname.
$this->assign_var($varname, $_str);
return true;
}
/**
* Block-level variable assignment. Adds a new block iteration with the given
* variable assignments. Note that this should only be called once per block
* iteration.
*/
public function assign_block_vars($blockname, $vararray)
{
if (strstr($blockname, '.')) {
// Nested block.
$blocks = explode('.', $blockname);
$blockcount = sizeof($blocks) - 1;
$str = '$this->_tpldata';
for ($i = 0; $i < $blockcount; ++$i) {
$str .= '[\''.$blocks[$i].'.\']';
eval('$lastiteration = sizeof('.$str.') - 1;');
$str .= '['.$lastiteration.']';
}
// Now we add the block that we're actually assigning to.
// We're adding a new iteration to this block with the given
// variable assignments.
$str .= '[\''.$blocks[$blockcount].'.\'][] = $vararray;';
// Now we evaluate this assignment we've built up.
eval($str);
} else {
// Top-level block.
// Add a new iteration to this block with the variable assignments
// we were given.
$this->_tpldata[$blockname.'.'][] = $vararray;
}
return true;
}
/**
* Root-level variable assignment. Adds to current assignments, overriding
* any existing variable assignment with the same name.
*/
public function assign_vars($vararray)
{
global $lang;
foreach ($vararray as $key => $val) {
$this->_tpldata['.'][0][$key] = $val;
}
return true;
}
/**
* Root-level variable assignment. Adds to current assignments, overriding
* any existing variable assignment with the same name.
*/
public function assign_var($varname, $varval)
{
$this->_tpldata['.'][0][$varname] = $varval;
return true;
}
/**
* Generates a full path+filename for the given filename, which can either
* be an absolute name, or a name relative to the rootdir for this Template
* object.
*/
public function make_filename($filename)
{
// Check if it's an absolute or relative path.
/*
if (substr($filename, 0, 1) != '/')
{
$filename = $this->root.'/'.$filename;
}
*/
if (!file_exists($filename)) {
exit("Template->make_filename(): Error - file $filename does not exist");
}
return $filename;
}
/**
* If not already done, load the file for the given handle and populate
* the uncompiled_code[] hash with its code. Do not compile.
*/
public function loadfile($handle)
{
// If the file for this handle is already loaded and compiled, do nothing.
if (isset($this->uncompiled_code[$handle]) && !empty($this->uncompiled_code[$handle])) {
return true;
}
// If we don't have a file assigned to this handle, die.
if (!isset($this->files[$handle])) {
exit("Template->loadfile(): No file specified for handle $handle");
}
$filename = $this->files[$handle];
$str = implode('', @file($filename));
if (empty($str)) {
exit("Template->loadfile(): File $filename for handle $handle is empty");
}
$this->uncompiled_code[$handle] = $str;
return true;
}
/**
* Compiles the given string of code, and returns
* the result in a string.
* If "do_not_echo" is true, the returned code will not be directly
* executable, but can be used as part of a variable assignment
* for use in assign_code_from_handle().
*/
public function compile($code, $do_not_echo = false, $retvar = '')
{
// replace \ with \\ and then ' with \'.
$code = str_replace('\\', '\\\\', $code);
$code = str_replace('\'', '\\\'', $code);
// change template varrefs into PHP varrefs
// This one will handle varrefs WITH namespaces
$varrefs = [];
preg_match_all('#\{(([a-z0-9\-_]+?\.)+?)([a-z0-9\-_]+?)\}#is', $code, $varrefs);
$varcount = sizeof($varrefs[1]);
for ($i = 0; $i < $varcount; ++$i) {
$namespace = $varrefs[1][$i];
$varname = $varrefs[3][$i];
$new = $this->generate_block_varref($namespace, $varname);
$code = str_replace($varrefs[0][$i], $new, $code);
}
// This will handle the remaining root-level varrefs
$code = preg_replace('#\{([a-z0-9\-_]*?)\}#is', '\'.( ( isset($this->_tpldata[\'.\'][0][\'\1\']) ) ? $this->_tpldata[\'.\'][0][\'\1\'] : \'\' ) . \'', $code);
// Break it up into lines.
$code_lines = explode("\n", $code);
$block_nesting_level = 0;
$block_names = [];
$block_names[0] = '.';
// Second: prepend echo ', append '."\n"; to each line.
$line_count = sizeof($code_lines);
for ($i = 0; $i < $line_count; ++$i) {
$code_lines[$i] = chop($code_lines[$i]);
if (preg_match('#<!-- BEGIN (.*?) -->#', $code_lines[$i], $m)) {
$n[0] = $m[0];
$n[1] = $m[1];
// Added: dougk_ff7-Keeps templates from bombing if begin is on the same line as end.. I think. :)
if (preg_match('#<!-- END (.*?) -->#', $code_lines[$i], $n)) {
++$block_nesting_level;
$block_names[$block_nesting_level] = $m[1];
if ($block_nesting_level < 2) {
// Block is not nested.
$code_lines[$i] = '$_'.$n[1].'_count = ( isset($this->_tpldata[\''.$n[1].'.\']) ) ? sizeof($this->_tpldata[\''.$n[1].'.\']) : 0;';
$code_lines[$i] .= "\n".'for ($_'.$n[1].'_i = 0; $_'.$n[1].'_i < $_'.$n[1].'_count; $_'.$n[1].'_i++)';
$code_lines[$i] .= "\n".'{';
} else {
// This block is nested.
// Generate a namespace string for this block.
$namespace = implode('.', $block_names);
// strip leading period from root level..
$namespace = substr($namespace, 2);
// Get a reference to the data array for this block that depends on the
// current indices of all parent blocks.
$varref = $this->generate_block_data_ref($namespace, false);
// Create the for loop code to iterate over this block.
$code_lines[$i] = '$_'.$n[1].'_count = ( isset('.$varref.') ) ? sizeof('.$varref.') : 0;';
$code_lines[$i] .= "\n".'for ($_'.$n[1].'_i = 0; $_'.$n[1].'_i < $_'.$n[1].'_count; $_'.$n[1].'_i++)';
$code_lines[$i] .= "\n".'{';
}
// We have the end of a block.
unset($block_names[$block_nesting_level]);
--$block_nesting_level;
$code_lines[$i] .= '} // END '.$n[1];
$m[0] = $n[0];
$m[1] = $n[1];
} else {
// We have the start of a block.
++$block_nesting_level;
$block_names[$block_nesting_level] = $m[1];
if ($block_nesting_level < 2) {
// Block is not nested.
$code_lines[$i] = '$_'.$m[1].'_count = ( isset($this->_tpldata[\''.$m[1].'.\']) ) ? sizeof($this->_tpldata[\''.$m[1].'.\']) : 0;';
$code_lines[$i] .= "\n".'for ($_'.$m[1].'_i = 0; $_'.$m[1].'_i < $_'.$m[1].'_count; $_'.$m[1].'_i++)';
$code_lines[$i] .= "\n".'{';
} else {
// This block is nested.
// Generate a namespace string for this block.
$namespace = implode('.', $block_names);
// strip leading period from root level..
$namespace = substr($namespace, 2);
// Get a reference to the data array for this block that depends on the
// current indices of all parent blocks.
$varref = $this->generate_block_data_ref($namespace, false);
// Create the for loop code to iterate over this block.
$code_lines[$i] = '$_'.$m[1].'_count = ( isset('.$varref.') ) ? sizeof('.$varref.') : 0;';
$code_lines[$i] .= "\n".'for ($_'.$m[1].'_i = 0; $_'.$m[1].'_i < $_'.$m[1].'_count; $_'.$m[1].'_i++)';
$code_lines[$i] .= "\n".'{';
}
}
} elseif (preg_match('#<!-- END (.*?) -->#', $code_lines[$i], $m)) {
// We have the end of a block.
unset($block_names[$block_nesting_level]);
--$block_nesting_level;
$code_lines[$i] = '} // END '.$m[1];
} else {
// We have an ordinary line of code.
if (!$do_not_echo) {
$code_lines[$i] = 'echo \''.$code_lines[$i].'\'."\\n";';
} else {
$code_lines[$i] = '$'.$retvar.'.= \''.$code_lines[$i].'\'."\\n";';
}
}
}
// Bring it back into a single string of lines of code.
$code = implode("\n", $code_lines);
return $code;
}
/**
* Generates a reference to the given variable inside the given (possibly nested)
* block namespace. This is a string of the form:
* '.$this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['varname'].'
* It's ready to be inserted into an "echo" line in one of the templates.
* NOTE: expects a trailing "." on the namespace.
*/
public function generate_block_varref($namespace, $varname)
{
// Strip the trailing period.
$namespace = substr($namespace, 0, strlen($namespace) - 1);
// Get a reference to the data block for this namespace.
$varref = $this->generate_block_data_ref($namespace, true);
// Prepend the necessary code to stick this in an echo line.
// Append the variable reference.
$varref .= '[\''.$varname.'\']';
$varref = '\'.( ( isset('.$varref.') ) ? '.$varref.' : \'\' ) . \'';
return $varref;
}
/**
* Generates a reference to the array of data values for the given
* (possibly nested) block namespace. This is a string of the form:
* $this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['$childN'].
*
* If $include_last_iterator is true, then [$_childN_i] will be appended to the form shown above.
* NOTE: does not expect a trailing "." on the blockname.
*/
public function generate_block_data_ref($blockname, $include_last_iterator)
{
// Get an array of the blocks involved.
$blocks = explode('.', $blockname);
$blockcount = sizeof($blocks) - 1;
$varref = '$this->_tpldata';
// Build up the string with everything but the last child.
for ($i = 0; $i < $blockcount; ++$i) {
$varref .= '[\''.$blocks[$i].'.\'][$_'.$blocks[$i].'_i]';
}
// Add the block reference for the last child.
$varref .= '[\''.$blocks[$blockcount].'.\']';
// Add the iterator for the last child if requried.
if ($include_last_iterator) {
$varref .= '[$_'.$blocks[$blockcount].'_i]';
}
return $varref;
}
}