Browse Source

Sanitizer les SVG :

- on reprend la lib svg-sanitizer https://github.com/darylldoyle/svg-sanitizer utilisee sur le plugin logo-svg https://github.com/cariagency/spip-logo-svg
- on sanitize systematiquement, que l'utilisateur soit admin ou non, car il upload une image sans forcement etre conscient que ca peut contenir des scripts

(merci Maieul)
issue_4494
cedric@yterium.com 3 years ago
parent
commit
ea7bde3cf9
  1. 11
      .gitattributes
  2. 340
      lib/svg-sanitizer/LICENSE
  3. 88
      lib/svg-sanitizer/README.md
  4. 22
      lib/svg-sanitizer/composer.json
  5. 2259
      lib/svg-sanitizer/composer.lock
  6. 23
      lib/svg-sanitizer/phpunit.xml.dist
  7. 473
      lib/svg-sanitizer/src/Sanitizer.php
  8. 354
      lib/svg-sanitizer/src/data/AllowedAttributes.php
  9. 245
      lib/svg-sanitizer/src/data/AllowedTags.php
  10. 21
      lib/svg-sanitizer/src/data/AttributeInterface.php
  11. 22
      lib/svg-sanitizer/src/data/TagInterface.php
  12. 187
      lib/svg-sanitizer/src/svg-scanner.php
  13. 30
      metadata/svg.php
  14. 2
      paquet.xml

11
.gitattributes vendored

@ -256,6 +256,17 @@ lib/mejs/renderers/twitch.js -text
lib/mejs/renderers/twitch.min.js -text
lib/mejs/renderers/vimeo.js -text
lib/mejs/renderers/vimeo.min.js -text
lib/svg-sanitizer/LICENSE -text
lib/svg-sanitizer/README.md -text
lib/svg-sanitizer/composer.json -text
lib/svg-sanitizer/composer.lock -text
lib/svg-sanitizer/phpunit.xml.dist -text
lib/svg-sanitizer/src/Sanitizer.php -text
lib/svg-sanitizer/src/data/AllowedAttributes.php -text
lib/svg-sanitizer/src/data/AllowedTags.php -text
lib/svg-sanitizer/src/data/AttributeInterface.php -text
lib/svg-sanitizer/src/data/TagInterface.php -text
lib/svg-sanitizer/src/svg-scanner.php -text
/medias_administrations.php -text
/medias_autoriser.php -text
/medias_fonctions.php -text

340
lib/svg-sanitizer/LICENSE

@ -0,0 +1,340 @@
GNU GENERAL PUBLIC LICENSE
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88
lib/svg-sanitizer/README.md

@ -0,0 +1,88 @@
# svg-sanitizer
[![Build Status](https://travis-ci.org/darylldoyle/svg-sanitizer.svg?branch=master)](https://travis-ci.org/darylldoyle/svg-sanitizer) [![Test Coverage](https://codeclimate.com/github/darylldoyle/svg-sanitizer/badges/coverage.svg)](https://codeclimate.com/github/darylldoyle/svg-sanitizer/coverage)
This is my attempt at building a decent SVG sanitizer in PHP. The work is laregely borrowed from [DOMPurify](https://github.com/cure53/DOMPurify).
## Installation
Either require `enshrined/svg-sanitize` through composer or download the repo and include the old way!
## Usage
Using this is fairly easy. Create a new instance of `enshrined\svgSanitize\Sanitizer` and then call the `sanitize` whilst passing in your dirty SVG/XML
**Basic Example**
```php
use enshrined\svgSanitize\Sanitizer;
// Create a new sanitizer instance
$sanitizer = new Sanitizer();
// Load the dirty svg
$dirtySVG = file_get_contents('filthy.svg');
// Pass it to the sanitizer and get it back clean
$cleanSVG = $sanitizer->sanitize($dirtySVG);
// Now do what you want with your clean SVG/XML data
```
## Output
This will either return a sanitized SVG/XML string or boolean `false` if XML parsing failed (usually due to a badly formatted file).
## Options
You may pass your own whitelist of tags and attributes by using the `Sanitizer::setAllowedTags` and `Sanitizer::setAllowedAttrs` methods respectively.
These methods require that you implement the `enshrined\svgSanitize\data\TagInterface` or `enshrined\svgSanitize\data\AttributeInterface`.
## Remove remote references
You have the option to remove attributes that reference remote files, this will stop HTTP leaks but will add an overhead to the sanitiser.
This defaults to false, set to true to remove references.
`$sanitizer->removeRemoteReferences(true);`
## Viewing Sanitisation Issues
You may use the `getXmlIssues()` method to return an array of issues that occurred during sanitisation.
This may be useful for logging or providing feedback to the user on why an SVG was refused.
`$issues = $sanitizer->getXmlIssues();`
## Minification
You can minify the XML output by calling `$sanitiser->minify(true);`.
## Demo
There is a demo available at: [http://svg.enshrined.co.uk/](http://svg.enshrined.co.uk/)
## WordPress
I've just released a WordPress plugin containing this code so you can sanitize your WordPress uploads. It's available from the WordPress plugin directory: [https://wordpress.org/plugins/safe-svg/](https://wordpress.org/plugins/safe-svg/)
## Drupal
[Michael Potter](https://github.com/heyMP) has kindly created a Drupal module for this library which is available at: [https://www.drupal.org/project/svg_sanitizer](https://www.drupal.org/project/svg_sanitizer)
## Tests
You can run these by running `phpunit`
## Standalone scanning of files via CLI
Thanks to the work by [gudmdharalds](https://github.com/gudmdharalds) there's now a standalone scanner that can be used via the CLI.
Any errors will be output in JSON format. See [the PR](https://github.com/darylldoyle/svg-sanitizer/pull/25) for an example.
Use it as follows: `php svg-scanner.php ~/svgs/myfile.svg`
## To-Do
More extensive testing for the SVGs/XML would be lovely, I'll try and add these soon. If you feel like doing it for me, please do and make a PR!

22
lib/svg-sanitizer/composer.json

@ -0,0 +1,22 @@
{
"name": "enshrined/svg-sanitize",
"description": "An SVG sanitizer for PHP",
"license": "GPL-2.0+",
"authors": [
{
"name": "Daryll Doyle",
"email": "daryll@enshrined.co.uk"
}
],
"autoload": {
"psr-4": {
"enshrined\\svgSanitize\\": "src"
}
},
"minimum-stability": "stable",
"require": {},
"require-dev": {
"phpunit/phpunit": "^6",
"codeclimate/php-test-reporter": "^0.1.2"
}
}

2259
lib/svg-sanitizer/composer.lock generated

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23
lib/svg-sanitizer/phpunit.xml.dist

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<?xml version="1.0" encoding="UTF-8"?>
<phpunit bootstrap="vendor/autoload.php"
colors="true"
stopOnFailure="false"
syntaxCheck="false">
<testsuites>
<testsuite name="The project's test suite">
<directory>./tests</directory>
</testsuite>
</testsuites>
<logging>
<log type="coverage-clover" target="./build/logs/clover.xml"/>
</logging>
<filter>
<whitelist processUncoveredFilesFromWhitelist="true">
<directory suffix=".php">./src</directory>
</whitelist>
</filter>
</phpunit>

473
lib/svg-sanitizer/src/Sanitizer.php

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<?php
namespace enshrined\svgSanitize;
use DOMDocument;
use enshrined\svgSanitize\data\AllowedAttributes;
use enshrined\svgSanitize\data\AllowedTags;
use enshrined\svgSanitize\data\AttributeInterface;
use enshrined\svgSanitize\data\TagInterface;
/**
* Class Sanitizer
*
* @package enshrined\svgSanitize
*/
class Sanitizer
{
/**
* Regex to catch script and data values in attributes
*/
const SCRIPT_REGEX = '/(?:\w+script|data):/xi';
/**
* @var DOMDocument
*/
protected $xmlDocument;
/**
* @var array
*/
protected $allowedTags;
/**
* @var array
*/
protected $allowedAttrs;
/**
* @var
*/
protected $xmlLoaderValue;
/**
* @var bool
*/
protected $minifyXML = false;
/**
* @var bool
*/
protected $removeRemoteReferences = false;
/**
* @var bool
*/
protected $removeXMLTag = false;
/**
* @var int
*/
protected $xmlOptions = LIBXML_NOEMPTYTAG;
/**
* @var array
*/
protected $xmlIssues = array();
/**
*
*/
function __construct()
{
// Load default tags/attributes
$this->allowedAttrs = array_map('strtolower', AllowedAttributes::getAttributes());
$this->allowedTags = array_map('strtolower', AllowedTags::getTags());
}
/**
* Set up the DOMDocument
*/
protected function resetInternal()
{
$this->xmlDocument = new DOMDocument();
$this->xmlDocument->preserveWhiteSpace = false;
$this->xmlDocument->strictErrorChecking = false;
$this->xmlDocument->formatOutput = !$this->minifyXML;
}
/**
* Set XML options to use when saving XML
* See: DOMDocument::saveXML
*
* @param int $xmlOptions
*/
public function setXMLOptions($xmlOptions)
{
$this->xmlOptions = $xmlOptions;
}
/**
* Get XML options to use when saving XML
* See: DOMDocument::saveXML
*
* @return int
*/
public function getXMLOptions()
{
return $this->xmlOptions;
}
/**
* Get the array of allowed tags
*
* @return array
*/
public function getAllowedTags()
{
return $this->allowedTags;
}
/**
* Set custom allowed tags
*
* @param TagInterface $allowedTags
*/
public function setAllowedTags(TagInterface $allowedTags)
{
$this->allowedTags = array_map('strtolower', $allowedTags::getTags());
}
/**
* Get the array of allowed attributes
*
* @return array
*/
public function getAllowedAttrs()
{
return $this->allowedAttrs;
}
/**
* Set custom allowed attributes
*
* @param AttributeInterface $allowedAttrs
*/
public function setAllowedAttrs(AttributeInterface $allowedAttrs)
{
$this->allowedAttrs = array_map('strtolower', $allowedAttrs::getAttributes());
}
/**
* Should we remove references to remote files?
*
* @param bool $removeRemoteRefs
*/
public function removeRemoteReferences($removeRemoteRefs = false)
{
$this->removeRemoteReferences = $removeRemoteRefs;
}
/**
* Get XML issues.
*
* @return array
*/
public function getXmlIssues() {
return $this->xmlIssues;
}
/**
* Sanitize the passed string
*
* @param string $dirty
* @return string
*/
public function sanitize($dirty)
{
// Don't run on an empty string
if (empty($dirty)) {
return '';
}
// Strip php tags
$dirty = preg_replace('/<\?(=|php)(.+?)\?>/i', '', $dirty);
$this->resetInternal();
$this->setUpBefore();
$loaded = $this->xmlDocument->loadXML($dirty);
// If we couldn't parse the XML then we go no further. Reset and return false
if (!$loaded) {
$this->resetAfter();
return false;
}
$this->removeDoctype();
// Grab all the elements
$allElements = $this->xmlDocument->getElementsByTagName("*");
// Start the cleaning proccess
$this->startClean($allElements);
// Save cleaned XML to a variable
if ($this->removeXMLTag) {
$clean = $this->xmlDocument->saveXML($this->xmlDocument->documentElement, $this->xmlOptions);
} else {
$clean = $this->xmlDocument->saveXML($this->xmlDocument, $this->xmlOptions);
}
$this->resetAfter();
// Remove any extra whitespaces when minifying
if ($this->minifyXML) {
$clean = preg_replace('/\s+/', ' ', $clean);
}
// Return result
return $clean;
}
/**
* Set up libXML before we start
*/
protected function setUpBefore()
{
// Turn off the entity loader
$this->xmlLoaderValue = libxml_disable_entity_loader(true);
// Suppress the errors because we don't really have to worry about formation before cleansing
libxml_use_internal_errors(true);
// Reset array of altered XML
$this->xmlIssues = array();
}
/**
* Reset the class after use
*/
protected function resetAfter()
{
// Reset the entity loader
libxml_disable_entity_loader($this->xmlLoaderValue);
}
/**
* Remove the XML Doctype
* It may be caught later on output but that seems to be buggy, so we need to make sure it's gone
*/
protected function removeDoctype()
{
foreach ($this->xmlDocument->childNodes as $child) {
if ($child->nodeType === XML_DOCUMENT_TYPE_NODE) {
$child->parentNode->removeChild($child);
}
}
}
/**
* Start the cleaning with tags, then we move onto attributes and hrefs later
*
* @param \DOMNodeList $elements
*/
protected function startClean(\DOMNodeList $elements)
{
// loop through all elements
// we do this backwards so we don't skip anything if we delete a node
// see comments at: http://php.net/manual/en/class.domnamednodemap.php
for ($i = $elements->length - 1; $i >= 0; $i--) {
$currentElement = $elements->item($i);
// If the tag isn't in the whitelist, remove it and continue with next iteration
if (!in_array(strtolower($currentElement->tagName), $this->allowedTags)) {
$currentElement->parentNode->removeChild($currentElement);
$this->xmlIssues[] = array(
'message' => 'Suspicious tag \'' . $currentElement->tagName . '\'',
'line' => $currentElement->getLineNo(),
);
continue;
}
$this->cleanAttributesOnWhitelist($currentElement);
$this->cleanXlinkHrefs($currentElement);
$this->cleanHrefs($currentElement);
if (strtolower($currentElement->tagName) === 'use') {
if ($this->isUseTagDirty($currentElement)) {
$currentElement->parentNode->removeChild($currentElement);
$this->xmlIssues[] = array(
'message' => 'Suspicious \'' . $currentElement->tagName . '\'',
'line' => $currentElement->getLineNo(),
);
continue;
}
}
}
}
/**
* Only allow attributes that are on the whitelist
*
* @param \DOMElement $element
*/
protected function cleanAttributesOnWhitelist(\DOMElement $element)
{
for ($x = $element->attributes->length - 1; $x >= 0; $x--) {
// get attribute name
$attrName = $element->attributes->item($x)->name;
// Remove attribute if not in whitelist
if (!in_array(strtolower($attrName), $this->allowedAttrs) && !$this->isAriaAttribute(strtolower($attrName)) && !$this->isDataAttribute(strtolower($attrName))) {
$element->removeAttribute($attrName);
$this->xmlIssues[] = array(
'message' => 'Suspicious attribute \'' . $attrName . '\'',
'line' => $element->getLineNo(),
);
}
// Do we want to strip remote references?
if($this->removeRemoteReferences) {
// Remove attribute if it has a remote reference
if (isset($element->attributes->item($x)->value) && $this->hasRemoteReference($element->attributes->item($x)->value)) {
$element->removeAttribute($attrName);
$this->xmlIssues[] = array(
'message' => 'Suspicious attribute \'' . $attrName . '\'',
'line' => $element->getLineNo(),
);
}
}
}
}
/**
* Clean the xlink:hrefs of script and data embeds
*
* @param \DOMElement $element
*/
protected function cleanXlinkHrefs(\DOMElement $element)
{
$xlinks = $element->getAttributeNS('http://www.w3.org/1999/xlink', 'href');
if (preg_match(self::SCRIPT_REGEX, $xlinks) === 1) {
if (!in_array(substr($xlinks, 0, 14), array(
'data:image/png', // PNG
'data:image/gif', // GIF
'data:image/jpg', // JPG
'data:image/jpe', // JPEG
'data:image/pjp', // PJPEG
))) {
$element->removeAttributeNS( 'http://www.w3.org/1999/xlink', 'href' );
$this->xmlIssues[] = array(
'message' => 'Suspicious attribute \'href\'',
'line' => $element->getLineNo(),
);
}
}
}
/**
* Clean the hrefs of script and data embeds
*
* @param \DOMElement $element
*/
protected function cleanHrefs(\DOMElement $element)
{
$href = $element->getAttribute('href');
if (preg_match(self::SCRIPT_REGEX, $href) === 1) {
$element->removeAttribute('href');
$this->xmlIssues[] = array(
'message' => 'Suspicious attribute \'href\'',
'line' => $element->getLineNo(),
);
}
}
/**
* Removes non-printable ASCII characters from string & trims it
*
* @param string $value
* @return bool
*/
protected function removeNonPrintableCharacters($value)
{
return trim(preg_replace('/[^ -~]/xu','',$value));
}
/**
* Does this attribute value have a remote reference?
*
* @param $value
* @return bool
*/
protected function hasRemoteReference($value)
{
$value = $this->removeNonPrintableCharacters($value);
$wrapped_in_url = preg_match('~^url\(\s*[\'"]\s*(.*)\s*[\'"]\s*\)$~xi', $value, $match);
if (!$wrapped_in_url){
return false;
}
$value = trim($match[1], '\'"');
return preg_match('~^((https?|ftp|file):)?//~xi', $value);
}
/**
* Should we minify the output?
*
* @param bool $shouldMinify
*/
public function minify($shouldMinify = false)
{
$this->minifyXML = (bool) $shouldMinify;
}
/**
* Should we remove the XML tag in the header?
*
* @param bool $removeXMLTag
*/
public function removeXMLTag($removeXMLTag = false)
{
$this->removeXMLTag = (bool) $removeXMLTag;
}
/**
* Check to see if an attribute is an aria attribute or not
*
* @param $attributeName
*
* @return bool
*/
protected function isAriaAttribute($attributeName)
{
return strpos($attributeName, 'aria-') === 0;
}
/**
* Check to see if an attribute is an data attribute or not
*
* @param $attributeName
*
* @return bool
*/
protected function isDataAttribute($attributeName)
{
return strpos($attributeName, 'data-') === 0;
}
/**
* Make sure our use tag is only referencing internal resources
*
* @param \DOMElement $element
* @return bool
*/
protected function isUseTagDirty(\DOMElement $element)
{
$xlinks = $element->getAttributeNS('http://www.w3.org/1999/xlink', 'href');
if ($xlinks && substr($xlinks, 0, 1) !== '#') {
return true;
}
return false;
}
}

354
lib/svg-sanitizer/src/data/AllowedAttributes.php

@ -0,0 +1,354 @@
<?php
namespace enshrined\svgSanitize\data;
/**
* Class AllowedAttributes
*
* @package enshrined\svgSanitize\data
*/
class AllowedAttributes implements AttributeInterface
{
/**
* Returns an array of attributes
*
* @return array
*/
public static function getAttributes()
{
return array(
// HTML
'accept',
'action',
'align',
'alt',
'autocomplete',
'background',
'bgcolor',
'border',
'cellpadding',
'cellspacing',
'checked',
'cite',
'class',
'clear',
'color',
'cols',
'colspan',
'coords',
'crossorigin',
'datetime',
'default',
'dir',
'disabled',
'download',
'enctype',
'face',
'for',
'headers',
'height',
'hidden',
'high',
'href',
'hreflang',
'id',
'integrity',
'ismap',
'label',
'lang',
'list',
'loop',
'low',
'max',
'maxlength',
'media',
'method',
'min',
'multiple',
'name',
'noshade',
'novalidate',
'nowrap',
'open',
'optimum',
'pattern',
'placeholder',
'poster',
'preload',
'pubdate',
'radiogroup',
'readonly',
'rel',
'required',
'rev',
'reversed',
'role',
'rows',
'rowspan',
'spellcheck',
'scope',
'selected',
'shape',
'size',
'sizes',
'span',
'srclang',
'start',
'src',
'srcset',
'step',
'style',
'summary',
'tabindex',
'title',
'type',
'usemap',
'valign',
'value',
'width',
'xmlns',
// SVG
'accent-height',
'accumulate',
'additivive',
'alignment-baseline',
'ascent',
'attributename',
'attributetype',
'azimuth',
'basefrequency',
'baseline-shift',
'begin',
'bias',
'by',
'class',
'clip',
'clip-path',
'clip-rule',
'color',
'color-interpolation',
'color-interpolation-filters',
'color-profile',
'color-rendering',
'cx',
'cy',
'd',
'dx',
'dy',
'diffuseconstant',
'direction',
'display',
'divisor',
'dur',
'edgemode',
'elevation',
'end',
'fill',
'fill-opacity',
'fill-rule',
'filter',
'flood-color',
'flood-opacity',
'font-family',
'font-size',
'font-size-adjust',
'font-stretch',
'font-style',
'font-variant',
'font-weight',
'fx',
'fy',
'g1',
'g2',
'glyph-name',
'glyphref',
'gradientunits',
'gradienttransform',
'height',
'href',
'id',
'image-rendering',
'in',
'in2',
'k',
'k1',
'k2',
'k3',
'k4',
'kerning',
'keypoints',
'keysplines',
'keytimes',
'lang',
'lengthadjust',
'letter-spacing',
'kernelmatrix',
'kernelunitlength',
'lighting-color',
'local',
'marker-end',
'marker-mid',
'marker-start',
'markerheight',
'markerunits',
'markerwidth',
'maskcontentunits',
'maskunits',
'max',
'mask',
'media',
'method',
'mode',
'min',
'name',
'numoctaves',
'offset',
'operator',
'opacity',
'order',
'orient',
'orientation',
'origin',
'overflow',
'paint-order',
'path',
'pathlength',
'patterncontentunits',
'patterntransform',
'patternunits',
'points',
'preservealpha',
'preserveaspectratio',
'r',
'rx',
'ry',
'radius',
'refx',
'refy',
'repeatcount',
'repeatdur',
'restart',
'result',
'rotate',
'scale',
'seed',
'shape-rendering',
'specularconstant',
'specularexponent',
'spreadmethod',
'stddeviation',
'stitchtiles',
'stop-color',
'stop-opacity',
'stroke-dasharray',
'stroke-dashoffset',
'stroke-linecap',
'stroke-linejoin',
'stroke-miterlimit',
'stroke-opacity',
'stroke',
'stroke-width',
'style',
'surfacescale',
'tabindex',
'targetx',
'targety',
'transform',
'text-anchor',
'text-decoration',
'text-rendering',
'textlength',
'type',
'u1',
'u2',
'unicode',
'values',
'viewbox',
'visibility',
'vert-adv-y',
'vert-origin-x',
'vert-origin-y',
'width',
'word-spacing',
'wrap',
'writing-mode',
'xchannelselector',
'ychannelselector',
'x',
'x1',
'x2',
'xmlns',
'y',
'y1',
'y2',
'z',
'zoomandpan',
// MathML
'accent',
'accentunder',
'align',
'bevelled',
'close',
'columnsalign',
'columnlines',
'columnspan',
'denomalign',
'depth',
'dir',
'display',
'displaystyle',
'fence',
'frame',
'height',
'href',
'id',
'largeop',
'length',
'linethickness',
'lspace',
'lquote',
'mathbackground',
'mathcolor',
'mathsize',
'mathvariant',
'maxsize',
'minsize',
'movablelimits',
'notation',
'numalign',
'open',
'rowalign',
'rowlines',
'rowspacing',
'rowspan',
'rspace',
'rquote',
'scriptlevel',
'scriptminsize',
'scriptsizemultiplier',
'selection',
'separator',
'separators',
'slope',
'stretchy',
'subscriptshift',
'supscriptshift',
'symmetric',
'voffset',
'width',
'xmlns',
// XML
'xlink:href',
'xml:id',
'xlink:title',
'xml:space',
'xmlns:xlink',
);
}
}

245
lib/svg-sanitizer/src/data/AllowedTags.php

@ -0,0 +1,245 @@
<?php
namespace enshrined\svgSanitize\data;
/**
* Class AllowedTags
*
* @package enshrined\svgSanitize\data
*/
class AllowedTags implements TagInterface
{
/**
* Returns an array of tags
*
* @return array
*/
public static function getTags()
{
return array (
// HTML
'a',
'abbr',
'acronym',
'address',
'area',
'article',
'aside',
'audio',
'b',
'bdi',
'bdo',
'big',
'blink',
'blockquote',
'body',
'br',
'button',
'canvas',
'caption',
'center',
'cite',
'code',
'col',
'colgroup',
'content',
'data',
'datalist',
'dd',
'decorator',
'del',
'details',
'dfn',
'dir',
'div',
'dl',
'dt',
'element',
'em',
'fieldset',
'figcaption',
'figure',
'font',
'footer',
'form',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'head',
'header',
'hgroup',
'hr',
'html',
'i',
'image',
'img',
'input',
'ins',
'kbd',
'label',
'legend',
'li',
'main',
'map',
'mark',
'marquee',
'menu',
'menuitem',
'meter',
'nav',
'nobr',
'ol',
'optgroup',
'option',
'output',
'p',
'pre',
'progress',
'q',
'rp',
'rt',
'ruby',
's',
'samp',
'section',
'select',
'shadow',
'small',
'source',
'spacer',
'span',
'strike',
'strong',
'style',
'sub',
'summary',
'sup',
'table',
'tbody',
'td',
'template',
'textarea',
'tfoot',
'th',
'thead',
'time',
'tr',
'track',
'tt',
'u',
'ul',
'var',
'video',
'wbr',
// SVG
'svg',
'altglyph',
'altglyphdef',
'altglyphitem',
'animatecolor',
'animatemotion',
'animatetransform',
'circle',
'clippath',
'defs',
'desc',
'ellipse',
'filter',
'font',
'g',
'glyph',
'glyphref',
'hkern',
'image',
'line',
'lineargradient',
'marker',
'mask',
'metadata',
'mpath',
'path',
'pattern',
'polygon',
'polyline',
'radialgradient',
'rect',
'stop',
'switch',
'symbol',
'text',
'textpath',
'title',
'tref',
'tspan',
'use',
'view',
'vkern',
// SVG Filters
'feBlend',
'feColorMatrix',
'feComponentTransfer',
'feComposite',
'feConvolveMatrix',
'feDiffuseLighting',
'feDisplacementMap',
'feDistantLight',
'feFlood',
'feFuncA',
'feFuncB',
'feFuncG',
'feFuncR',
'feGaussianBlur',
'feMerge',
'feMergeNode',
'feMorphology',
'feOffset',
'fePointLight',
'feSpecularLighting',
'feSpotLight',
'feTile',
'feTurbulence',
//MathML
'math',
'menclose',
'merror',
'mfenced',
'mfrac',
'mglyph',
'mi',
'mlabeledtr',
'mmuliscripts',
'mn',
'mo',
'mover',
'mpadded',
'mphantom',
'mroot',
'mrow',
'ms',
'mpspace',
'msqrt',
'mystyle',
'msub',
'msup',
'msubsup',
'mtable',
'mtd',
'mtext',
'mtr',
'munder',
'munderover',
//text
'#text'
);
}
}

21
lib/svg-sanitizer/src/data/AttributeInterface.php

@ -0,0 +1,21 @@
<?php
namespace enshrined\svgSanitize\data;
/**
* Class AttributeInterface
*
* @package enshrined\svgSanitize\data
*/
interface AttributeInterface
{
/**
* Returns an array of attributes
*
* @return array
*/
public static function getAttributes();
}

22
lib/svg-sanitizer/src/data/TagInterface.php

@ -0,0 +1,22 @@
<?php
namespace enshrined\svgSanitize\data;
/**
* Interface TagInterface
*
* @package enshrined\svgSanitize\tags
*/
interface TagInterface
{
/**
* Returns an array of tags
*
* @return array
*/
public static function getTags();
}

187
lib/svg-sanitizer/src/svg-scanner.php

@ -0,0 +1,187 @@
#!/usr/bin/env php
<?php
/*
* Simple program that uses svg-sanitizer
* to find issues in files specified on the
* command line, and prints a JSON output with
* the issues found on exit.
*/
require_once( __DIR__ . '/data/AttributeInterface.php' );
require_once( __DIR__ . '/data/TagInterface.php' );
require_once( __DIR__ . '/data/AllowedAttributes.php' );
require_once( __DIR__ . '/data/AllowedTags.php' );
require_once( __DIR__ . '/Sanitizer.php' );
/*
* Print array as JSON and then
* exit program with a particular
* exit-code.
*/
function sysexit(
$results,
$status
) {
echo json_encode(
$results,
JSON_PRETTY_PRINT
);
exit( $status );
}
/*
* Main part begins
*/
global $argv;
/*
* Set up results array, to
* be printed on exit.
*/
$results = array(
'totals' => array(
'errors' => 0,
),
'files' => array(
),
);
/*
* Catch files to scan from $argv.
*/