:arrow_up: Update HTML Purifier library.

Updated HTML Purifier from 4.6.0 to 4.9.2 with better PHP7 compatibility.
Used composer to manage this library.

1 files changed, 0 insertions, 474 deletions

diff --git a/library/HTMLPurifier/CSSDefinition.php b/library/HTMLPurifier/CSSDefinition.php
deleted file mode 100644
index 0acdee2d9..000000000
--- a/library/HTMLPurifier/CSSDefinition.php
+++ /dev/null
@@ -1,474 +0,0 @@
-<?php
-
-/**
- * Defines allowed CSS attributes and what their values are.
- * @see HTMLPurifier_HTMLDefinition
- */
-class HTMLPurifier_CSSDefinition extends HTMLPurifier_Definition
-{
-
-    public $type = 'CSS';
-
-    /**
-     * Assoc array of attribute name to definition object.
-     * @type HTMLPurifier_AttrDef[]
-     */
-    public $info = array();
-
-    /**
-     * Constructs the info array.  The meat of this class.
-     * @param HTMLPurifier_Config $config
-     */
-    protected function doSetup($config)
-    {
-        $this->info['text-align'] = new HTMLPurifier_AttrDef_Enum(
-            array('left', 'right', 'center', 'justify'),
-            false
-        );
-
-        $border_style =
-            $this->info['border-bottom-style'] =
-            $this->info['border-right-style'] =
-            $this->info['border-left-style'] =
-            $this->info['border-top-style'] = new HTMLPurifier_AttrDef_Enum(
-                array(
-                    'none',
-                    'hidden',
-                    'dotted',
-                    'dashed',
-                    'solid',
-                    'double',
-                    'groove',
-                    'ridge',
-                    'inset',
-                    'outset'
-                ),
-                false
-            );
-
-        $this->info['border-style'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_style);
-
-        $this->info['clear'] = new HTMLPurifier_AttrDef_Enum(
-            array('none', 'left', 'right', 'both'),
-            false
-        );
-        $this->info['float'] = new HTMLPurifier_AttrDef_Enum(
-            array('none', 'left', 'right'),
-            false
-        );
-        $this->info['font-style'] = new HTMLPurifier_AttrDef_Enum(
-            array('normal', 'italic', 'oblique'),
-            false
-        );
-        $this->info['font-variant'] = new HTMLPurifier_AttrDef_Enum(
-            array('normal', 'small-caps'),
-            false
-        );
-
-        $uri_or_none = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_Enum(array('none')),
-                new HTMLPurifier_AttrDef_CSS_URI()
-            )
-        );
-
-        $this->info['list-style-position'] = new HTMLPurifier_AttrDef_Enum(
-            array('inside', 'outside'),
-            false
-        );
-        $this->info['list-style-type'] = new HTMLPurifier_AttrDef_Enum(
-            array(
-                'disc',
-                'circle',
-                'square',
-                'decimal',
-                'lower-roman',
-                'upper-roman',
-                'lower-alpha',
-                'upper-alpha',
-                'none'
-            ),
-            false
-        );
-        $this->info['list-style-image'] = $uri_or_none;
-
-        $this->info['list-style'] = new HTMLPurifier_AttrDef_CSS_ListStyle($config);
-
-        $this->info['text-transform'] = new HTMLPurifier_AttrDef_Enum(
-            array('capitalize', 'uppercase', 'lowercase', 'none'),
-            false
-        );
-        $this->info['color'] = new HTMLPurifier_AttrDef_CSS_Color();
-
-        $this->info['background-image'] = $uri_or_none;
-        $this->info['background-repeat'] = new HTMLPurifier_AttrDef_Enum(
-            array('repeat', 'repeat-x', 'repeat-y', 'no-repeat')
-        );
-        $this->info['background-attachment'] = new HTMLPurifier_AttrDef_Enum(
-            array('scroll', 'fixed')
-        );
-        $this->info['background-position'] = new HTMLPurifier_AttrDef_CSS_BackgroundPosition();
-
-        $border_color =
-            $this->info['border-top-color'] =
-            $this->info['border-bottom-color'] =
-            $this->info['border-left-color'] =
-            $this->info['border-right-color'] =
-            $this->info['background-color'] = new HTMLPurifier_AttrDef_CSS_Composite(
-                array(
-                    new HTMLPurifier_AttrDef_Enum(array('transparent')),
-                    new HTMLPurifier_AttrDef_CSS_Color()
-                )
-            );
-
-        $this->info['background'] = new HTMLPurifier_AttrDef_CSS_Background($config);
-
-        $this->info['border-color'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_color);
-
-        $border_width =
-            $this->info['border-top-width'] =
-            $this->info['border-bottom-width'] =
-            $this->info['border-left-width'] =
-            $this->info['border-right-width'] = new HTMLPurifier_AttrDef_CSS_Composite(
-                array(
-                    new HTMLPurifier_AttrDef_Enum(array('thin', 'medium', 'thick')),
-                    new HTMLPurifier_AttrDef_CSS_Length('0') //disallow negative
-                )
-            );
-
-        $this->info['border-width'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_width);
-
-        $this->info['letter-spacing'] = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_Enum(array('normal')),
-                new HTMLPurifier_AttrDef_CSS_Length()
-            )
-        );
-
-        $this->info['word-spacing'] = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_Enum(array('normal')),
-                new HTMLPurifier_AttrDef_CSS_Length()
-            )
-        );
-
-        $this->info['font-size'] = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_Enum(
-                    array(
-                        'xx-small',
-                        'x-small',
-                        'small',
-                        'medium',
-                        'large',
-                        'x-large',
-                        'xx-large',
-                        'larger',
-                        'smaller'
-                    )
-                ),
-                new HTMLPurifier_AttrDef_CSS_Percentage(),
-                new HTMLPurifier_AttrDef_CSS_Length()
-            )
-        );
-
-        $this->info['line-height'] = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_Enum(array('normal')),
-                new HTMLPurifier_AttrDef_CSS_Number(true), // no negatives
-                new HTMLPurifier_AttrDef_CSS_Length('0'),
-                new HTMLPurifier_AttrDef_CSS_Percentage(true)
-            )
-        );
-
-        $margin =
-            $this->info['margin-top'] =
-            $this->info['margin-bottom'] =
-            $this->info['margin-left'] =
-            $this->info['margin-right'] = new HTMLPurifier_AttrDef_CSS_Composite(
-                array(
-                    new HTMLPurifier_AttrDef_CSS_Length(),
-                    new HTMLPurifier_AttrDef_CSS_Percentage(),
-                    new HTMLPurifier_AttrDef_Enum(array('auto'))
-                )
-            );
-
-        $this->info['margin'] = new HTMLPurifier_AttrDef_CSS_Multiple($margin);
-
-        // non-negative
-        $padding =
-            $this->info['padding-top'] =
-            $this->info['padding-bottom'] =
-            $this->info['padding-left'] =
-            $this->info['padding-right'] = new HTMLPurifier_AttrDef_CSS_Composite(
-                array(
-                    new HTMLPurifier_AttrDef_CSS_Length('0'),
-                    new HTMLPurifier_AttrDef_CSS_Percentage(true)
-                )
-            );
-
-        $this->info['padding'] = new HTMLPurifier_AttrDef_CSS_Multiple($padding);
-
-        $this->info['text-indent'] = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_CSS_Length(),
-                new HTMLPurifier_AttrDef_CSS_Percentage()
-            )
-        );
-
-        $trusted_wh = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_CSS_Length('0'),
-                new HTMLPurifier_AttrDef_CSS_Percentage(true),
-                new HTMLPurifier_AttrDef_Enum(array('auto'))
-            )
-        );
-        $max = $config->get('CSS.MaxImgLength');
-
-        $this->info['width'] =
-        $this->info['height'] =
-            $max === null ?
-                $trusted_wh :
-                new HTMLPurifier_AttrDef_Switch(
-                    'img',
-                    // For img tags:
-                    new HTMLPurifier_AttrDef_CSS_Composite(
-                        array(
-                            new HTMLPurifier_AttrDef_CSS_Length('0', $max),
-                            new HTMLPurifier_AttrDef_Enum(array('auto'))
-                        )
-                    ),
-                    // For everyone else:
-                    $trusted_wh
-                );
-
-        $this->info['text-decoration'] = new HTMLPurifier_AttrDef_CSS_TextDecoration();
-
-        $this->info['font-family'] = new HTMLPurifier_AttrDef_CSS_FontFamily();
-
-        // this could use specialized code
-        $this->info['font-weight'] = new HTMLPurifier_AttrDef_Enum(
-            array(
-                'normal',
-                'bold',
-                'bolder',
-                'lighter',
-                '100',
-                '200',
-                '300',
-                '400',
-                '500',
-                '600',
-                '700',
-                '800',
-                '900'
-            ),
-            false
-        );
-
-        // MUST be called after other font properties, as it references
-        // a CSSDefinition object
-        $this->info['font'] = new HTMLPurifier_AttrDef_CSS_Font($config);
-
-        // same here
-        $this->info['border'] =
-        $this->info['border-bottom'] =
-        $this->info['border-top'] =
-        $this->info['border-left'] =
-        $this->info['border-right'] = new HTMLPurifier_AttrDef_CSS_Border($config);
-
-        $this->info['border-collapse'] = new HTMLPurifier_AttrDef_Enum(
-            array('collapse', 'separate')
-        );
-
-        $this->info['caption-side'] = new HTMLPurifier_AttrDef_Enum(
-            array('top', 'bottom')
-        );
-
-        $this->info['table-layout'] = new HTMLPurifier_AttrDef_Enum(
-            array('auto', 'fixed')
-        );
-
-        $this->info['vertical-align'] = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_Enum(
-                    array(
-                        'baseline',
-                        'sub',
-                        'super',
-                        'top',
-                        'text-top',
-                        'middle',
-                        'bottom',
-                        'text-bottom'
-                    )
-                ),
-                new HTMLPurifier_AttrDef_CSS_Length(),
-                new HTMLPurifier_AttrDef_CSS_Percentage()
-            )
-        );
-
-        $this->info['border-spacing'] = new HTMLPurifier_AttrDef_CSS_Multiple(new HTMLPurifier_AttrDef_CSS_Length(), 2);
-
-        // These CSS properties don't work on many browsers, but we live
-        // in THE FUTURE!
-        $this->info['white-space'] = new HTMLPurifier_AttrDef_Enum(
-            array('nowrap', 'normal', 'pre', 'pre-wrap', 'pre-line')
-        );
-
-        if ($config->get('CSS.Proprietary')) {
-            $this->doSetupProprietary($config);
-        }
-
-        if ($config->get('CSS.AllowTricky')) {
-            $this->doSetupTricky($config);
-        }
-
-        if ($config->get('CSS.Trusted')) {
-            $this->doSetupTrusted($config);
-        }
-
-        $allow_important = $config->get('CSS.AllowImportant');
-        // wrap all attr-defs with decorator that handles !important
-        foreach ($this->info as $k => $v) {
-            $this->info[$k] = new HTMLPurifier_AttrDef_CSS_ImportantDecorator($v, $allow_important);
-        }
-
-        $this->setupConfigStuff($config);
-    }
-
-    /**
-     * @param HTMLPurifier_Config $config
-     */
-    protected function doSetupProprietary($config)
-    {
-        // Internet Explorer only scrollbar colors
-        $this->info['scrollbar-arrow-color'] = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-base-color'] = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-darkshadow-color'] = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-face-color'] = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-highlight-color'] = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-shadow-color'] = new HTMLPurifier_AttrDef_CSS_Color();
-
-        // technically not proprietary, but CSS3, and no one supports it
-        $this->info['opacity'] = new HTMLPurifier_AttrDef_CSS_AlphaValue();
-        $this->info['-moz-opacity'] = new HTMLPurifier_AttrDef_CSS_AlphaValue();
-        $this->info['-khtml-opacity'] = new HTMLPurifier_AttrDef_CSS_AlphaValue();
-
-        // only opacity, for now
-        $this->info['filter'] = new HTMLPurifier_AttrDef_CSS_Filter();
-
-        // more CSS3
-        $this->info['page-break-after'] =
-        $this->info['page-break-before'] = new HTMLPurifier_AttrDef_Enum(
-            array(
-                'auto',
-                'always',
-                'avoid',
-                'left',
-                'right'
-            )
-        );
-        $this->info['page-break-inside'] = new HTMLPurifier_AttrDef_Enum(array('auto', 'avoid'));
-
-    }
-
-    /**
-     * @param HTMLPurifier_Config $config
-     */
-    protected function doSetupTricky($config)
-    {
-        $this->info['display'] = new HTMLPurifier_AttrDef_Enum(
-            array(
-                'inline',
-                'block',
-                'list-item',
-                'run-in',
-                'compact',
-                'marker',
-                'table',
-                'inline-block',
-                'inline-table',
-                'table-row-group',
-                'table-header-group',
-                'table-footer-group',
-                'table-row',
-                'table-column-group',
-                'table-column',
-                'table-cell',
-                'table-caption',
-                'none'
-            )
-        );
-        $this->info['visibility'] = new HTMLPurifier_AttrDef_Enum(
-            array('visible', 'hidden', 'collapse')
-        );
-        $this->info['overflow'] = new HTMLPurifier_AttrDef_Enum(array('visible', 'hidden', 'auto', 'scroll'));
-    }
-
-    /**
-     * @param HTMLPurifier_Config $config
-     */
-    protected function doSetupTrusted($config)
-    {
-        $this->info['position'] = new HTMLPurifier_AttrDef_Enum(
-            array('static', 'relative', 'absolute', 'fixed')
-        );
-        $this->info['top'] =
-        $this->info['left'] =
-        $this->info['right'] =
-        $this->info['bottom'] = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_CSS_Length(),
-                new HTMLPurifier_AttrDef_CSS_Percentage(),
-                new HTMLPurifier_AttrDef_Enum(array('auto')),
-            )
-        );
-        $this->info['z-index'] = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_Integer(),
-                new HTMLPurifier_AttrDef_Enum(array('auto')),
-            )
-        );
-    }
-
-    /**
-     * Performs extra config-based processing. Based off of
-     * HTMLPurifier_HTMLDefinition.
-     * @param HTMLPurifier_Config $config
-     * @todo Refactor duplicate elements into common class (probably using
-     *       composition, not inheritance).
-     */
-    protected function setupConfigStuff($config)
-    {
-        // setup allowed elements
-        $support = "(for information on implementing this, see the " .
-            "support forums) ";
-        $allowed_properties = $config->get('CSS.AllowedProperties');
-        if ($allowed_properties !== null) {
-            foreach ($this->info as $name => $d) {
-                if (!isset($allowed_properties[$name])) {
-                    unset($this->info[$name]);
-                }
-                unset($allowed_properties[$name]);
-            }
-            // emit errors
-            foreach ($allowed_properties as $name => $d) {
-                // :TODO: Is this htmlspecialchars() call really necessary?
-                $name = htmlspecialchars($name);
-                trigger_error("Style attribute '$name' is not supported $support", E_USER_WARNING);
-            }
-        }
-
-        $forbidden_properties = $config->get('CSS.ForbiddenProperties');
-        if ($forbidden_properties !== null) {
-            foreach ($this->info as $name => $d) {
-                if (isset($forbidden_properties[$name])) {
-                    unset($this->info[$name]);
-                }
-            }
-        }
-    }
-}
-
-// vim: et sw=4 sts=4