From adf17b677edeb2387671f6a0f12123e7497b5938 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20L=C5=93uillet?= <nicolas@loeuillet.org>
Date: Sun, 18 Jan 2015 20:07:46 +0100
Subject: remove 3rd libraries

---
 .../HTMLPurifier/Filter/ExtractStyleBlocks.php     | 338 ---------------------
 .../htmlpurifier/HTMLPurifier/Filter/YouTube.php   |  65 ----
 2 files changed, 403 deletions(-)
 delete mode 100644 inc/3rdparty/htmlpurifier/HTMLPurifier/Filter/ExtractStyleBlocks.php
 delete mode 100644 inc/3rdparty/htmlpurifier/HTMLPurifier/Filter/YouTube.php

(limited to 'inc/3rdparty/htmlpurifier/HTMLPurifier/Filter')

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/Filter/ExtractStyleBlocks.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/Filter/ExtractStyleBlocks.php
deleted file mode 100644
index 9a115d86..00000000
--- a/inc/3rdparty/htmlpurifier/HTMLPurifier/Filter/ExtractStyleBlocks.php
+++ /dev/null
@@ -1,338 +0,0 @@
-<?php
-
-// why is this a top level function? Because PHP 5.2.0 doesn't seem to
-// understand how to interpret this filter if it's a static method.
-// It's all really silly, but if we go this route it might be reasonable
-// to coalesce all of these methods into one.
-function htmlpurifier_filter_extractstyleblocks_muteerrorhandler()
-{
-}
-
-/**
- * This filter extracts <style> blocks from input HTML, cleans them up
- * using CSSTidy, and then places them in $purifier->context->get('StyleBlocks')
- * so they can be used elsewhere in the document.
- *
- * @note
- *      See tests/HTMLPurifier/Filter/ExtractStyleBlocksTest.php for
- *      sample usage.
- *
- * @note
- *      This filter can also be used on stylesheets not included in the
- *      document--something purists would probably prefer. Just directly
- *      call HTMLPurifier_Filter_ExtractStyleBlocks->cleanCSS()
- */
-class HTMLPurifier_Filter_ExtractStyleBlocks extends HTMLPurifier_Filter
-{
-    /**
-     * @type string
-     */
-    public $name = 'ExtractStyleBlocks';
-
-    /**
-     * @type array
-     */
-    private $_styleMatches = array();
-
-    /**
-     * @type csstidy
-     */
-    private $_tidy;
-
-    /**
-     * @type HTMLPurifier_AttrDef_HTML_ID
-     */
-    private $_id_attrdef;
-
-    /**
-     * @type HTMLPurifier_AttrDef_CSS_Ident
-     */
-    private $_class_attrdef;
-
-    /**
-     * @type HTMLPurifier_AttrDef_Enum
-     */
-    private $_enum_attrdef;
-
-    public function __construct()
-    {
-        $this->_tidy = new csstidy();
-        $this->_tidy->set_cfg('lowercase_s', false);
-        $this->_id_attrdef = new HTMLPurifier_AttrDef_HTML_ID(true);
-        $this->_class_attrdef = new HTMLPurifier_AttrDef_CSS_Ident();
-        $this->_enum_attrdef = new HTMLPurifier_AttrDef_Enum(
-            array(
-                'first-child',
-                'link',
-                'visited',
-                'active',
-                'hover',
-                'focus'
-            )
-        );
-    }
-
-    /**
-     * Save the contents of CSS blocks to style matches
-     * @param array $matches preg_replace style $matches array
-     */
-    protected function styleCallback($matches)
-    {
-        $this->_styleMatches[] = $matches[1];
-    }
-
-    /**
-     * Removes inline <style> tags from HTML, saves them for later use
-     * @param string $html
-     * @param HTMLPurifier_Config $config
-     * @param HTMLPurifier_Context $context
-     * @return string
-     * @todo Extend to indicate non-text/css style blocks
-     */
-    public function preFilter($html, $config, $context)
-    {
-        $tidy = $config->get('Filter.ExtractStyleBlocks.TidyImpl');
-        if ($tidy !== null) {
-            $this->_tidy = $tidy;
-        }
-        $html = preg_replace_callback('#<style(?:\s.*)?>(.+)</style>#isU', array($this, 'styleCallback'), $html);
-        $style_blocks = $this->_styleMatches;
-        $this->_styleMatches = array(); // reset
-        $context->register('StyleBlocks', $style_blocks); // $context must not be reused
-        if ($this->_tidy) {
-            foreach ($style_blocks as &$style) {
-                $style = $this->cleanCSS($style, $config, $context);
-            }
-        }
-        return $html;
-    }
-
-    /**
-     * Takes CSS (the stuff found in <style>) and cleans it.
-     * @warning Requires CSSTidy <http://csstidy.sourceforge.net/>
-     * @param string $css CSS styling to clean
-     * @param HTMLPurifier_Config $config
-     * @param HTMLPurifier_Context $context
-     * @throws HTMLPurifier_Exception
-     * @return string Cleaned CSS
-     */
-    public function cleanCSS($css, $config, $context)
-    {
-        // prepare scope
-        $scope = $config->get('Filter.ExtractStyleBlocks.Scope');
-        if ($scope !== null) {
-            $scopes = array_map('trim', explode(',', $scope));
-        } else {
-            $scopes = array();
-        }
-        // remove comments from CSS
-        $css = trim($css);
-        if (strncmp('<!--', $css, 4) === 0) {
-            $css = substr($css, 4);
-        }
-        if (strlen($css) > 3 && substr($css, -3) == '-->') {
-            $css = substr($css, 0, -3);
-        }
-        $css = trim($css);
-        set_error_handler('htmlpurifier_filter_extractstyleblocks_muteerrorhandler');
-        $this->_tidy->parse($css);
-        restore_error_handler();
-        $css_definition = $config->getDefinition('CSS');
-        $html_definition = $config->getDefinition('HTML');
-        $new_css = array();
-        foreach ($this->_tidy->css as $k => $decls) {
-            // $decls are all CSS declarations inside an @ selector
-            $new_decls = array();
-            foreach ($decls as $selector => $style) {
-                $selector = trim($selector);
-                if ($selector === '') {
-                    continue;
-                } // should not happen
-                // Parse the selector
-                // Here is the relevant part of the CSS grammar:
-                //
-                // ruleset
-                //   : selector [ ',' S* selector ]* '{' ...
-                // selector
-                //   : simple_selector [ combinator selector | S+ [ combinator? selector ]? ]?
-                // combinator
-                //   : '+' S*
-                //   : '>' S*
-                // simple_selector
-                //   : element_name [ HASH | class | attrib | pseudo ]*
-                //   | [ HASH | class | attrib | pseudo ]+
-                // element_name
-                //   : IDENT | '*'
-                //   ;
-                // class
-                //   : '.' IDENT
-                //   ;
-                // attrib
-                //   : '[' S* IDENT S* [ [ '=' | INCLUDES | DASHMATCH ] S*
-                //     [ IDENT | STRING ] S* ]? ']'
-                //   ;
-                // pseudo
-                //   : ':' [ IDENT | FUNCTION S* [IDENT S*]? ')' ]
-                //   ;
-                //
-                // For reference, here are the relevant tokens:
-                //
-                // HASH         #{name}
-                // IDENT        {ident}
-                // INCLUDES     ==
-                // DASHMATCH    |=
-                // STRING       {string}
-                // FUNCTION     {ident}\(
-                //
-                // And the lexical scanner tokens
-                //
-                // name         {nmchar}+
-                // nmchar       [_a-z0-9-]|{nonascii}|{escape}
-                // nonascii     [\240-\377]
-                // escape       {unicode}|\\[^\r\n\f0-9a-f]
-                // unicode      \\{h}}{1,6}(\r\n|[ \t\r\n\f])?
-                // ident        -?{nmstart}{nmchar*}
-                // nmstart      [_a-z]|{nonascii}|{escape}
-                // string       {string1}|{string2}
-                // string1      \"([^\n\r\f\\"]|\\{nl}|{escape})*\"
-                // string2      \'([^\n\r\f\\"]|\\{nl}|{escape})*\'
-                //
-                // We'll implement a subset (in order to reduce attack
-                // surface); in particular:
-                //
-                //      - No Unicode support
-                //      - No escapes support
-                //      - No string support (by proxy no attrib support)
-                //      - element_name is matched against allowed
-                //        elements (some people might find this
-                //        annoying...)
-                //      - Pseudo-elements one of :first-child, :link,
-                //        :visited, :active, :hover, :focus
-
-                // handle ruleset
-                $selectors = array_map('trim', explode(',', $selector));
-                $new_selectors = array();
-                foreach ($selectors as $sel) {
-                    // split on +, > and spaces
-                    $basic_selectors = preg_split('/\s*([+> ])\s*/', $sel, -1, PREG_SPLIT_DELIM_CAPTURE);
-                    // even indices are chunks, odd indices are
-                    // delimiters
-                    $nsel = null;
-                    $delim = null; // guaranteed to be non-null after
-                    // two loop iterations
-                    for ($i = 0, $c = count($basic_selectors); $i < $c; $i++) {
-                        $x = $basic_selectors[$i];
-                        if ($i % 2) {
-                            // delimiter
-                            if ($x === ' ') {
-                                $delim = ' ';
-                            } else {
-                                $delim = ' ' . $x . ' ';
-                            }
-                        } else {
-                            // simple selector
-                            $components = preg_split('/([#.:])/', $x, -1, PREG_SPLIT_DELIM_CAPTURE);
-                            $sdelim = null;
-                            $nx = null;
-                            for ($j = 0, $cc = count($components); $j < $cc; $j++) {
-                                $y = $components[$j];
-                                if ($j === 0) {
-                                    if ($y === '*' || isset($html_definition->info[$y = strtolower($y)])) {
-                                        $nx = $y;
-                                    } else {
-                                        // $nx stays null; this matters
-                                        // if we don't manage to find
-                                        // any valid selector content,
-                                        // in which case we ignore the
-                                        // outer $delim
-                                    }
-                                } elseif ($j % 2) {
-                                    // set delimiter
-                                    $sdelim = $y;
-                                } else {
-                                    $attrdef = null;
-                                    if ($sdelim === '#') {
-                                        $attrdef = $this->_id_attrdef;
-                                    } elseif ($sdelim === '.') {
-                                        $attrdef = $this->_class_attrdef;
-                                    } elseif ($sdelim === ':') {
-                                        $attrdef = $this->_enum_attrdef;
-                                    } else {
-                                        throw new HTMLPurifier_Exception('broken invariant sdelim and preg_split');
-                                    }
-                                    $r = $attrdef->validate($y, $config, $context);
-                                    if ($r !== false) {
-                                        if ($r !== true) {
-                                            $y = $r;
-                                        }
-                                        if ($nx === null) {
-                                            $nx = '';
-                                        }
-                                        $nx .= $sdelim . $y;
-                                    }
-                                }
-                            }
-                            if ($nx !== null) {
-                                if ($nsel === null) {
-                                    $nsel = $nx;
-                                } else {
-                                    $nsel .= $delim . $nx;
-                                }
-                            } else {
-                                // delimiters to the left of invalid
-                                // basic selector ignored
-                            }
-                        }
-                    }
-                    if ($nsel !== null) {
-                        if (!empty($scopes)) {
-                            foreach ($scopes as $s) {
-                                $new_selectors[] = "$s $nsel";
-                            }
-                        } else {
-                            $new_selectors[] = $nsel;
-                        }
-                    }
-                }
-                if (empty($new_selectors)) {
-                    continue;
-                }
-                $selector = implode(', ', $new_selectors);
-                foreach ($style as $name => $value) {
-                    if (!isset($css_definition->info[$name])) {
-                        unset($style[$name]);
-                        continue;
-                    }
-                    $def = $css_definition->info[$name];
-                    $ret = $def->validate($value, $config, $context);
-                    if ($ret === false) {
-                        unset($style[$name]);
-                    } else {
-                        $style[$name] = $ret;
-                    }
-                }
-                $new_decls[$selector] = $style;
-            }
-            $new_css[$k] = $new_decls;
-        }
-        // remove stuff that shouldn't be used, could be reenabled
-        // after security risks are analyzed
-        $this->_tidy->css = $new_css;
-        $this->_tidy->import = array();
-        $this->_tidy->charset = null;
-        $this->_tidy->namespace = null;
-        $css = $this->_tidy->print->plain();
-        // we are going to escape any special characters <>& to ensure
-        // that no funny business occurs (i.e. </style> in a font-family prop).
-        if ($config->get('Filter.ExtractStyleBlocks.Escaping')) {
-            $css = str_replace(
-                array('<', '>', '&'),
-                array('\3C ', '\3E ', '\26 '),
-                $css
-            );
-        }
-        return $css;
-    }
-}
-
-// vim: et sw=4 sts=4
diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/Filter/YouTube.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/Filter/YouTube.php
deleted file mode 100644
index 9200802a..00000000
--- a/inc/3rdparty/htmlpurifier/HTMLPurifier/Filter/YouTube.php
+++ /dev/null
@@ -1,65 +0,0 @@
-<?php
-
-class HTMLPurifier_Filter_YouTube extends HTMLPurifier_Filter
-{
-
-    /**
-     * @type string
-     */
-    public $name = 'YouTube';
-
-    /**
-     * @param string $html
-     * @param HTMLPurifier_Config $config
-     * @param HTMLPurifier_Context $context
-     * @return string
-     */
-    public function preFilter($html, $config, $context)
-    {
-        $pre_regex = '#<object[^>]+>.+?' .
-            'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s';
-        $pre_replace = '<span class="youtube-embed">\1</span>';
-        return preg_replace($pre_regex, $pre_replace, $html);
-    }
-
-    /**
-     * @param string $html
-     * @param HTMLPurifier_Config $config
-     * @param HTMLPurifier_Context $context
-     * @return string
-     */
-    public function postFilter($html, $config, $context)
-    {
-        $post_regex = '#<span class="youtube-embed">((?:v|cp)/[A-Za-z0-9\-_=]+)</span>#';
-        return preg_replace_callback($post_regex, array($this, 'postFilterCallback'), $html);
-    }
-
-    /**
-     * @param $url
-     * @return string
-     */
-    protected function armorUrl($url)
-    {
-        return str_replace('--', '-&#45;', $url);
-    }
-
-    /**
-     * @param array $matches
-     * @return string
-     */
-    protected function postFilterCallback($matches)
-    {
-        $url = $this->armorUrl($matches[1]);
-        return '<object width="425" height="350" type="application/x-shockwave-flash" ' .
-        'data="http://www.youtube.com/' . $url . '">' .
-        '<param name="movie" value="http://www.youtube.com/' . $url . '"></param>' .
-        '<!--[if IE]>' .
-        '<embed src="http://www.youtube.com/' . $url . '"' .
-        'type="application/x-shockwave-flash"' .
-        'wmode="transparent" width="425" height="350" />' .
-        '<![endif]-->' .
-        '</object>';
-    }
-}
-
-// vim: et sw=4 sts=4
-- 
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