0971ce48d2
URL rewriting: works with image file instead of image id (change make_picture_url to generate urls with file name instead of image id) URL rewriting: completely works with category/best_rated and picture/best_rated/534 (change 'category.php?' to 'category' in make_index_url and 'picture.php?' to 'picture' in make_picture_url to see it) fix: picture category display in upper bar fix: function rate_picture variables and use of the new user type fix: caddie icon appears now on category page fix: admin element_set sql query was using storage_category_id column (column has moved to #image_categories) fix: replaced some old $_GET[xxx] with $page[xxx] fix: pictures have metadata url (use ? parameter - might change later) git-svn-id: http://piwigo.org/svn/trunk@1092 68402e56-0260-453c-a942-63ccdbb3a9ee
530 lines
18 KiB
PHP
530 lines
18 KiB
PHP
<?php
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// +-----------------------------------------------------------------------+
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// | PhpWebGallery - a PHP based picture gallery |
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// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
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// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
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// +-----------------------------------------------------------------------+
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// | branch : BSF (Best So Far)
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// | file : $RCSfile$
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// | last update : $Date$
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// | last modifier : $Author$
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// | revision : $Revision$
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// +-----------------------------------------------------------------------+
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// | This program is free software; you can redistribute it and/or modify |
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// | it under the terms of the GNU General Public License as published by |
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// | the Free Software Foundation |
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// | |
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// | This program is distributed in the hope that it will be useful, but |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// | General Public License for more details. |
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// | |
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// | You should have received a copy of the GNU General Public License |
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// | along with this program; if not, write to the Free Software |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA. |
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// +-----------------------------------------------------------------------+
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/**
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* Template class. By Nathan Codding of the phpBB group. The interface was
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* originally inspired by PHPLib templates, and the template file formats
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* are quite similar.
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*/
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class Template {
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var $classname = "Template";
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// variable that holds all the data we'll be substituting into
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// the compiled templates.
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// ...
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// This will end up being a multi-dimensional array like this :
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// $this->_tpldata[block.][iteration#][child.][iteration#][child2.][iteration#][variablename] == value
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// if it's a root-level variable, it'll be like this:
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// $this->_tpldata[.][0][varname] == value
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var $_tpldata = array();
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// Hash of filenames for each template handle.
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var $files = array();
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// Root template directory.
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var $root = "";
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// this will hash handle names to the compiled code for that handle.
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var $compiled_code = array();
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// This will hold the uncompiled code for that handle.
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var $uncompiled_code = array();
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// output
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var $output = '';
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/**
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* Constructor. Simply sets the root dir.
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*
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*/
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function Template($root = ".")
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{
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$this->set_rootdir($root);
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}
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/**
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* Destroys this template object. Should be called when you're done with
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* it, in order to clear out the template data so you can load/parse a new
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* template set.
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*/
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function destroy()
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{
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$this->_tpldata = array();
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}
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/**
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* Sets the template root directory for this Template object.
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*/
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function set_rootdir($dir)
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{
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if (!is_dir($dir))
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{
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return false;
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}
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$this->root = $dir;
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return true;
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}
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/**
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* Sets the template filenames for handles. $filename_array should be a
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* hash of handle => filename pairs.
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*/
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function set_filenames($filename_array)
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{
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if (!is_array($filename_array))
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{
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return false;
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}
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reset($filename_array);
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while(list($handle, $filename) = each($filename_array))
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{
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$this->files[$handle] = $this->make_filename($filename);
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}
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return true;
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}
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/**
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* Load the file for the handle, compile the file, and run the compiled
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* code. This will print out the results of executing the template.
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*/
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function pparse($handle)
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{
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if (!$this->loadfile($handle))
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{
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die("Template->pparse(): Couldn't load template file for handle $handle");
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}
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// actually compile the template now.
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if (!isset($this->compiled_code[$handle]) || empty($this->compiled_code[$handle]))
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{
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// Actually compile the code now.
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$this->compiled_code[$handle] = $this->compile($this->uncompiled_code[$handle]);
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}
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// Run the compiled code.
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//echo ("<!-- ".$this->compiled_code[$handle]." -->");
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eval($this->compiled_code[$handle]);
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return true;
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}
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/**
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* fills $output template var
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*/
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function parse($handle)
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{
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if (!$this->loadfile($handle))
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{
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die("Template->pparse(): Couldn't load template file for handle $handle");
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}
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// actually compile the template now.
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if (!isset($this->compiled_code[$handle]) || empty($this->compiled_code[$handle]))
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{
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// Actually compile the code now.
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$this->compiled_code[$handle] = $this->compile($this->uncompiled_code[$handle], true, '_str');
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}
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// Run the compiled code.
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$_str = '';
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eval($this->compiled_code[$handle]);
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$this->output.= $_str;
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return true;
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}
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/**
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* prints $output template var
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*/
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function p()
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{
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echo $this->output;
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}
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/**
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* Inserts the uncompiled code for $handle as the value of $varname in the
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* root-level. This can be used to effectively include a template in the
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* middle of another template.
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*
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* Note that all desired assignments to the variables in $handle should be
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* done BEFORE calling this function.
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*/
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function assign_var_from_handle($varname, $handle)
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{
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if (!$this->loadfile($handle))
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{
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die("Template->assign_var_from_handle(): Couldn't load template file for handle $handle");
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}
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// Compile it, with the "no echo statements" option on.
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$_str = "";
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$code = $this->compile($this->uncompiled_code[$handle], true, '_str');
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// evaluate the variable assignment.
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eval($code);
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// assign the value of the generated variable to the given varname.
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$this->assign_var($varname, $_str);
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return true;
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}
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/**
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* Block-level variable assignment. Adds a new block iteration with the
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* given variable assignments. Note that this should only be called once
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* per block iteration.
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*/
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function assign_block_vars($blockname, $vararray)
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{
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if (strstr($blockname, '.'))
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{
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// Nested block.
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$blocks = explode('.', $blockname);
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$blockcount = sizeof($blocks) - 1;
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$str = '$this->_tpldata';
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for ($i = 0; $i < $blockcount; $i++)
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{
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$str .= '[\'' . $blocks[$i] . '.\']';
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eval('$lastiteration = sizeof(' . $str . ') - 1;');
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$str .= '[' . $lastiteration . ']';
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}
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// Now we add the block that we're actually assigning to.
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// We're adding a new iteration to this block with the given
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// variable assignments.
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$str .= '[\'' . $blocks[$blockcount] . '.\'][] = $vararray;';
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// Now we evaluate this assignment we've built up.
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eval($str);
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}
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else
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{
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// Top-level block. Add a new iteration to this block with the
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// variable assignments we were given.
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$this->_tpldata[$blockname . '.'][] = $vararray;
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}
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return true;
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}
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/**
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* Root-level variable assignment. Adds to current assignments, overriding
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* any existing variable assignment with the same name.
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*/
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function assign_vars($vararray)
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{
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reset ($vararray);
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while (list($key, $val) = each($vararray))
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{
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$this->_tpldata['.'][0][$key] = $val;
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}
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return true;
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}
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/**
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* Root-level variable assignment. Adds to current assignments, overriding
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* any existing variable assignment with the same name.
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*/
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function assign_var($varname, $varval)
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{
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$this->_tpldata['.'][0][$varname] = $varval;
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return true;
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}
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/**
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* Generates a full path+filename for the given filename, which can either
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* be an absolute name, or a name relative to the rootdir for this
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* Template object.
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*/
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function make_filename($filename)
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{
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// Check if it's an absolute or relative path.
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// if (substr($filename, 0, 1) != '/')
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if (preg_match('/^[a-z_]/i', $filename))
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{
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$filename = $this->root.'/'.$filename;
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}
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if (!file_exists($filename))
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{
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die("Template->make_filename(): Error - file $filename does not exist");
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}
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return $filename;
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}
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/**
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* If not already done, load the file for the given handle and populate
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* the uncompiled_code[] hash with its code. Do not compile.
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*/
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function loadfile($handle)
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{
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// If the file for this handle is already loaded and compiled, do
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// nothing.
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if (isset($this->uncompiled_code[$handle])
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and !empty($this->uncompiled_code[$handle]))
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{
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return true;
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}
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// If we don't have a file assigned to this handle, die.
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if (!isset($this->files[$handle]))
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{
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die("Template->loadfile(): No file specified for handle $handle");
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}
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$filename = $this->files[$handle];
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$str = implode("", @file($filename));
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if (empty($str))
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{
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die("Template->loadfile(): File $filename for handle $handle is empty");
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}
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$this->uncompiled_code[$handle] = $str;
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return true;
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}
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/**
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* Compiles the given string of code, and returns the result in a string.
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*
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* If "do_not_echo" is true, the returned code will not be directly
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* executable, but can be used as part of a variable assignment for use in
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* assign_code_from_handle().
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*/
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function compile($code, $do_not_echo = false, $retvar = '')
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{
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$code = preg_replace('/\{pwg_root\}/e', "get_root_url()", $code);
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// PWG specific : communication between template and $lang
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$code = preg_replace('/\{lang:([^}]+)\}/e', "l10n('$1')", $code);
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// PWG specific : expand themeconf.inc.php variables
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$code = preg_replace('/\{themeconf:([^}]+)\}/e', "get_themeconf('$1')", $code);
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// replace \ with \\ and then ' with \'.
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$code = str_replace('\\', '\\\\', $code);
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$code = str_replace('\'', '\\\'', $code);
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// change template varrefs into PHP varrefs
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// This one will handle varrefs WITH namespaces
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$varrefs = array();
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preg_match_all('#\{(([a-z0-9\-_]+?\.)+?)([a-z0-9\-_]+?)\}#is', $code, $varrefs);
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$varcount = sizeof($varrefs[1]);
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for ($i = 0; $i < $varcount; $i++)
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{
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$namespace = $varrefs[1][$i];
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$varname = $varrefs[3][$i];
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$new = $this->generate_block_varref($namespace, $varname);
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$code = str_replace($varrefs[0][$i], $new, $code);
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}
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// This will handle the remaining root-level varrefs
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$code = preg_replace('#\{([a-z0-9\-_]*?)\}#is', '\' . ( ( isset($this->_tpldata[\'.\'][0][\'\1\']) ) ? $this->_tpldata[\'.\'][0][\'\1\'] : \'\' ) . \'', $code);
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// Break it up into lines.
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$code_lines = explode("\n", $code);
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$block_nesting_level = 0;
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$block_names = array();
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$block_names[0] = ".";
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// Second: prepend echo ', append ' . "\n"; to each line.
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$line_count = sizeof($code_lines);
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for ($i = 0; $i < $line_count; $i++)
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{
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$code_lines[$i] = chop($code_lines[$i]);
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if (preg_match('#<!-- BEGIN (.*?) -->#', $code_lines[$i], $m))
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{
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$n[0] = $m[0];
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$n[1] = $m[1];
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// Added: dougk_ff7-Keeps templates from bombing if begin is on
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// the same line as end.. I think. :)
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if ( preg_match('#<!-- END (.*?) -->#', $code_lines[$i], $n) )
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{
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$block_nesting_level++;
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$block_names[$block_nesting_level] = $m[1];
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if ($block_nesting_level < 2)
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{
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// Block is not nested.
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$code_lines[$i] = '$_' . $n[1] . '_count = ( isset($this->_tpldata[\'' . $n[1] . '.\']) ) ? sizeof($this->_tpldata[\'' . $n[1] . '.\']) : 0;';
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$code_lines[$i] .= "\n" . 'for ($_' . $n[1] . '_i = 0; $_' . $n[1] . '_i < $_' . $n[1] . '_count; $_' . $n[1] . '_i++)';
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$code_lines[$i] .= "\n" . '{';
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}
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else
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{
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// This block is nested.
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// Generate a namespace string for this block.
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$namespace = implode('.', $block_names);
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// strip leading period from root level..
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$namespace = substr($namespace, 2);
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// Get a reference to the data array for this block that depends on the
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// current indices of all parent blocks.
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$varref = $this->generate_block_data_ref($namespace, false);
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// Create the for loop code to iterate over this block.
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$code_lines[$i] = '$_' . $n[1] . '_count = ( isset(' . $varref . ') ) ? sizeof(' . $varref . ') : 0;';
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$code_lines[$i] .= "\n" . 'for ($_' . $n[1] . '_i = 0; $_' . $n[1] . '_i < $_' . $n[1] . '_count; $_' . $n[1] . '_i++)';
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$code_lines[$i] .= "\n" . '{';
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}
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// We have the end of a block.
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unset($block_names[$block_nesting_level]);
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$block_nesting_level--;
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$code_lines[$i] .= '} // END ' . $n[1];
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$m[0] = $n[0];
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$m[1] = $n[1];
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}
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else
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{
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// We have the start of a block.
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$block_nesting_level++;
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$block_names[$block_nesting_level] = $m[1];
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if ($block_nesting_level < 2)
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{
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// Block is not nested.
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$code_lines[$i] = '$_' . $m[1] . '_count = ( isset($this->_tpldata[\'' . $m[1] . '.\']) ) ? sizeof($this->_tpldata[\'' . $m[1] . '.\']) : 0;';
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$code_lines[$i] .= "\n" . 'for ($_' . $m[1] . '_i = 0; $_' . $m[1] . '_i < $_' . $m[1] . '_count; $_' . $m[1] . '_i++)';
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$code_lines[$i] .= "\n" . '{';
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}
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else
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{
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// This block is nested.
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// Generate a namespace string for this block.
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$namespace = implode('.', $block_names);
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// strip leading period from root level..
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$namespace = substr($namespace, 2);
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// Get a reference to the data array for this block that
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// depends on the current indices of all parent blocks.
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$varref = $this->generate_block_data_ref($namespace, false);
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// Create the for loop code to iterate over this block.
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$code_lines[$i] = '$_' . $m[1] . '_count = ( isset(' . $varref . ') ) ? sizeof(' . $varref . ') : 0;';
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$code_lines[$i] .= "\n" . 'for ($_' . $m[1] . '_i = 0; $_' . $m[1] . '_i < $_' . $m[1] . '_count; $_' . $m[1] . '_i++)';
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$code_lines[$i] .= "\n" . '{';
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}
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}
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}
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else if (preg_match('#<!-- END (.*?) -->#', $code_lines[$i], $m))
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{
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// We have the end of a block.
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unset($block_names[$block_nesting_level]);
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$block_nesting_level--;
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$code_lines[$i] = '} // END ' . $m[1];
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}
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else
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{
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// We have an ordinary line of code.
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if (!$do_not_echo)
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{
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$code_lines[$i] = 'echo \'' . $code_lines[$i] . '\' . "\\n";';
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}
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else
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{
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$code_lines[$i] = '$' . $retvar . '.= \'' . $code_lines[$i] . '\' . "\\n";';
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}
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}
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}
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// Bring it back into a single string of lines of code.
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$code = implode("\n", $code_lines);
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return $code ;
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}
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/**
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* Generates a reference to the given variable inside the given (possibly
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* nested) block namespace. This is a string of the form: '
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* . $this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['varname']
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* . ' It's ready to be inserted into an "echo" line in one of the
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* templates. NOTE: expects a trailing "." on the namespace.
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*/
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function generate_block_varref($namespace, $varname)
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{
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// Strip the trailing period.
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$namespace = substr($namespace, 0, strlen($namespace) - 1);
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// Get a reference to the data block for this namespace.
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$varref = $this->generate_block_data_ref($namespace, true);
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// Prepend the necessary code to stick this in an echo line.
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// Append the variable reference.
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$varref .= '[\'' . $varname . '\']';
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$varref = '\' . ( ( isset(' . $varref . ') ) ? ' . $varref . ' : \'\' ) . \'';
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return $varref;
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}
|
|
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
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;
|
|
}
|
|
|
|
}
|
|
|
|
?>
|