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Diffstat (limited to 'vendor/fguillot/picofeed/lib/PicoFeed/Filter/Attribute.php')
m---------vendor/fguillot/picofeed0
-rw-r--r--vendor/fguillot/picofeed/lib/PicoFeed/Filter/Attribute.php658
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diff --git a/vendor/fguillot/picofeed b/vendor/fguillot/picofeed
new file mode 160000
+Subproject 0a1d0d3950f7f047dc8fb1d80aa6296e15f306d
diff --git a/vendor/fguillot/picofeed/lib/PicoFeed/Filter/Attribute.php b/vendor/fguillot/picofeed/lib/PicoFeed/Filter/Attribute.php
deleted file mode 100644
index 5948dec35..000000000
--- a/vendor/fguillot/picofeed/lib/PicoFeed/Filter/Attribute.php
+++ /dev/null
@@ -1,658 +0,0 @@
-<?php
-
-namespace PicoFeed\Filter;
-
-use \PicoFeed\Client\Url;
-
-/**
- * Attribute Filter class
- *
- * @author Frederic Guillot
- * @package Filter
- */
-class Attribute
-{
- /**
- * Image proxy url
- *
- * @access private
- * @var string
- */
- private $image_proxy_url = '';
-
- /**
- * Image proxy callback
- *
- * @access private
- * @var \Closure|null
- */
- private $image_proxy_callback = null;
-
- /**
- * Tags and attribute whitelist
- *
- * @access private
- * @var array
- */
- private $attribute_whitelist = array(
- 'audio' => array('controls', 'src'),
- 'video' => array('poster', 'controls', 'height', 'width', 'src'),
- 'source' => array('src', 'type'),
- 'dt' => array(),
- 'dd' => array(),
- 'dl' => array(),
- 'table' => array(),
- 'caption' => array(),
- 'tr' => array(),
- 'th' => array(),
- 'td' => array(),
- 'tbody' => array(),
- 'thead' => array(),
- 'h2' => array(),
- 'h3' => array(),
- 'h4' => array(),
- 'h5' => array(),
- 'h6' => array(),
- 'strong' => array(),
- 'em' => array(),
- 'code' => array(),
- 'pre' => array(),
- 'blockquote' => array(),
- 'p' => array(),
- 'ul' => array(),
- 'li' => array(),
- 'ol' => array(),
- 'br' => array(),
- 'del' => array(),
- 'a' => array('href'),
- 'img' => array('src', 'title', 'alt'),
- 'figure' => array(),
- 'figcaption' => array(),
- 'cite' => array(),
- 'time' => array('datetime'),
- 'abbr' => array('title'),
- 'iframe' => array('width', 'height', 'frameborder', 'src'),
- 'q' => array('cite')
- );
-
- /**
- * Scheme whitelist
- *
- * For a complete list go to http://en.wikipedia.org/wiki/URI_scheme
- *
- * @access private
- * @var array
- */
- private $scheme_whitelist = array(
- 'bitcoin:',
- 'callto:',
- 'ed2k://',
- 'facetime://',
- 'feed:',
- 'ftp://',
- 'geo:',
- 'git://',
- 'http://',
- 'https://',
- 'irc://',
- 'irc6://',
- 'ircs://',
- 'jabber:',
- 'magnet:',
- 'mailto:',
- 'nntp://',
- 'rtmp://',
- 'sftp://',
- 'sip:',
- 'sips:',
- 'skype:',
- 'smb://',
- 'sms:',
- 'spotify:',
- 'ssh:',
- 'steam:',
- 'svn://',
- 'tel:',
- );
-
- /**
- * Iframe source whitelist, everything else is ignored
- *
- * @access private
- * @var array
- */
- private $iframe_whitelist = array(
- 'http://www.youtube.com',
- 'https://www.youtube.com',
- 'http://player.vimeo.com',
- 'https://player.vimeo.com',
- 'http://www.dailymotion.com',
- 'https://www.dailymotion.com',
- );
-
- /**
- * Blacklisted resources
- *
- * @access private
- * @var array
- */
- private $media_blacklist = array(
- 'api.flattr.com',
- 'feeds.feedburner.com',
- 'share.feedsportal.com',
- 'da.feedsportal.com',
- 'rss.feedsportal.com',
- 'res.feedsportal.com',
- 'res1.feedsportal.com',
- 'res2.feedsportal.com',
- 'res3.feedsportal.com',
- 'pi.feedsportal.com',
- 'rss.nytimes.com',
- 'feeds.wordpress.com',
- 'stats.wordpress.com',
- 'rss.cnn.com',
- 'twitter.com/home?status=',
- 'twitter.com/share',
- 'twitter_icon_large.png',
- 'www.facebook.com/sharer.php',
- 'facebook_icon_large.png',
- 'plus.google.com/share',
- 'www.gstatic.com/images/icons/gplus-16.png',
- 'www.gstatic.com/images/icons/gplus-32.png',
- 'www.gstatic.com/images/icons/gplus-64.png',
- );
-
- /**
- * Attributes used for external resources
- *
- * @access private
- * @var array
- */
- private $media_attributes = array(
- 'src',
- 'href',
- 'poster',
- );
-
- /**
- * Attributes that must be integer
- *
- * @access private
- * @var array
- */
- private $integer_attributes = array(
- 'width',
- 'height',
- 'frameborder',
- );
-
- /**
- * Mandatory attributes for specified tags
- *
- * @access private
- * @var array
- */
- private $required_attributes = array(
- 'a' => array('href'),
- 'img' => array('src'),
- 'iframe' => array('src'),
- 'audio' => array('src'),
- 'source' => array('src'),
- );
-
- /**
- * Add attributes to specified tags
- *
- * @access private
- * @var array
- */
- private $add_attributes = array(
- 'a' => array('rel' => 'noreferrer', 'target' => '_blank')
- );
-
- /**
- * List of filters to apply
- *
- * @access private
- * @var array
- */
- private $filters = array(
- 'filterEmptyAttribute',
- 'filterAllowedAttribute',
- 'filterIntegerAttribute',
- 'rewriteAbsoluteUrl',
- 'filterIframeAttribute',
- 'filterBlacklistResourceAttribute',
- 'filterProtocolUrlAttribute',
- 'rewriteImageProxyUrl',
- );
-
- /**
- * Add attributes to specified tags
- *
- * @access private
- * @var \PicoFeed\Client\Url
- */
- private $website;
-
- /**
- * Constructor
- *
- * @access public
- * @param \PicoFeed\Client\Url $website Website url instance
- */
- public function __construct(Url $website)
- {
- $this->website = $website;
- }
-
- /**
- * Apply filters to the attributes list
- *
- * @access public
- * @param string $tag Tag name
- * @param array $attributes Attributes dictionary
- * @return array Filtered attributes
- */
- public function filter($tag, array $attributes)
- {
- foreach ($attributes as $attribute => &$value) {
- foreach ($this->filters as $filter) {
- if (! $this->$filter($tag, $attribute, $value)) {
- unset($attributes[$attribute]);
- break;
- }
- }
- }
-
- return $attributes;
- }
-
- /**
- * Return true if the value is not empty (remove empty attributes)
- *
- * @access public
- * @param string $tag Tag name
- * @param string $attribute Atttribute name
- * @param string $value Atttribute value
- * @return boolean
- */
- public function filterEmptyAttribute($tag, $attribute, $value)
- {
- return $value !== '';
- }
-
- /**
- * Return true if the value is allowed (remove not allowed attributes)
- *
- * @access public
- * @param string $tag Tag name
- * @param string $attribute Atttribute name
- * @param string $value Atttribute value
- * @return boolean
- */
- public function filterAllowedAttribute($tag, $attribute, $value)
- {
- return isset($this->attribute_whitelist[$tag]) && in_array($attribute, $this->attribute_whitelist[$tag]);
- }
-
- /**
- * Return true if the value is not integer (remove attributes that should have an integer value)
- *
- * @access public
- * @param string $tag Tag name
- * @param string $attribute Atttribute name
- * @param string $value Atttribute value
- * @return boolean
- */
- public function filterIntegerAttribute($tag, $attribute, $value)
- {
- if (in_array($attribute, $this->integer_attributes)) {
- return ctype_digit($value);
- }
-
- return true;
- }
-
- /**
- * Return true if the iframe source is allowed (remove not allowed iframe)
- *
- * @access public
- * @param string $tag Tag name
- * @param string $attribute Atttribute name
- * @param string $value Atttribute value
- * @return boolean
- */
- public function filterIframeAttribute($tag, $attribute, $value)
- {
- if ($tag === 'iframe' && $attribute === 'src') {
-
- foreach ($this->iframe_whitelist as $url) {
- if (strpos($value, $url) === 0) {
- return true;
- }
- }
-
- return false;
- }
-
- return true;
- }
-
- /**
- * Return true if the resource is not blacklisted (remove blacklisted resource attributes)
- *
- * @access public
- * @param string $tag Tag name
- * @param string $attribute Atttribute name
- * @param string $value Atttribute value
- * @return boolean
- */
- public function filterBlacklistResourceAttribute($tag, $attribute, $value)
- {
- if ($this->isResource($attribute) && $this->isBlacklistedMedia($value)) {
- return false;
- }
-
- return true;
- }
-
- /**
- * Convert all relative links to absolute url
- *
- * @access public
- * @param string $tag Tag name
- * @param string $attribute Atttribute name
- * @param string $value Atttribute value
- * @return boolean
- */
- public function rewriteAbsoluteUrl($tag, $attribute, &$value)
- {
- if ($this->isResource($attribute)) {
- $value = Url::resolve($value, $this->website);
- }
-
- return true;
- }
-
- /**
- * Rewrite image url to use with a proxy
- *
- * @access public
- * @param string $tag Tag name
- * @param string $attribute Atttribute name
- * @param string $value Atttribute value
- * @return boolean
- */
- public function rewriteImageProxyUrl($tag, $attribute, &$value)
- {
- if ($tag === 'img' && $attribute === 'src') {
-
- if ($this->image_proxy_url) {
- $value = sprintf($this->image_proxy_url, urlencode($value));
- }
- else if (is_callable($this->image_proxy_callback)) {
- $value = call_user_func($this->image_proxy_callback, $value);
- }
- }
-
- return true;
- }
-
- /**
- * Return true if the scheme is authorized
- *
- * @access public
- * @param string $tag Tag name
- * @param string $attribute Atttribute name
- * @param string $value Atttribute value
- * @return boolean
- */
- public function filterProtocolUrlAttribute($tag, $attribute, $value)
- {
- if ($this->isResource($attribute) && ! $this->isAllowedProtocol($value)) {
- return false;
- }
-
- return true;
- }
-
- /**
- * Automatically add/override some attributes for specific tags
- *
- * @access public
- * @param string $tag Tag name
- * @param array $attributes Atttributes list
- * @return array
- */
- public function addAttributes($tag, array $attributes)
- {
- if (isset($this->add_attributes[$tag])) {
- $attributes += $this->add_attributes[$tag];
- }
-
- return $attributes;
- }
-
- /**
- * Return true if all required attributes are present
- *
- * @access public
- * @param string $tag Tag name
- * @param array $attributes Atttributes list
- * @return boolean
- */
- public function hasRequiredAttributes($tag, array $attributes)
- {
- if (isset($this->required_attributes[$tag])) {
-
- foreach ($this->required_attributes[$tag] as $attribute) {
- if (! isset($attributes[$attribute])) {
- return false;
- }
- }
- }
-
- return true;
- }
-
- /**
- * Check if an attribute name is an external resource
- *
- * @access public
- * @param string $attribute Attribute name
- * @return boolean
- */
- public function isResource($attribute)
- {
- return in_array($attribute, $this->media_attributes);
- }
-
- /**
- * Detect if the protocol is allowed or not
- *
- * @access public
- * @param string $value Attribute value
- * @return boolean
- */
- public function isAllowedProtocol($value)
- {
- foreach ($this->scheme_whitelist as $protocol) {
-
- if (strpos($value, $protocol) === 0) {
- return true;
- }
- }
-
- return false;
- }
-
- /**
- * Detect if an url is blacklisted
- *
- * @access public
- * @param string $resource Attribute value (URL)
- * @return boolean
- */
- public function isBlacklistedMedia($resource)
- {
- foreach ($this->media_blacklist as $name) {
-
- if (strpos($resource, $name) !== false) {
- return true;
- }
- }
-
- return false;
- }
-
- /**
- * Convert the attribute list to html
- *
- * @access public
- * @param array $attributes Attributes
- * @return string
- */
- public function toHtml(array $attributes)
- {
- $html = array();
-
- foreach ($attributes as $attribute => $value) {
- $html[] = sprintf('%s="%s"', $attribute, Filter::escape($value));
- }
-
- return implode(' ', $html);
- }
-
- /**
- * Set whitelisted tags and attributes for each tag
- *
- * @access public
- * @param array $values List of tags: ['video' => ['src', 'cover'], 'img' => ['src']]
- * @return Attribute
- */
- public function setWhitelistedAttributes(array $values)
- {
- $this->attribute_whitelist = $values ?: $this->attribute_whitelist;
- return $this;
- }
-
- /**
- * Set scheme whitelist
- *
- * @access public
- * @param array $values List of scheme: ['http://', 'ftp://']
- * @return Attribute
- */
- public function setSchemeWhitelist(array $values)
- {
- $this->scheme_whitelist = $values ?: $this->scheme_whitelist;
- return $this;
- }
-
- /**
- * Set media attributes (used to load external resources)
- *
- * @access public
- * @param array $values List of values: ['src', 'href']
- * @return Attribute
- */
- public function setMediaAttributes(array $values)
- {
- $this->media_attributes = $values ?: $this->media_attributes;
- return $this;
- }
-
- /**
- * Set blacklisted external resources
- *
- * @access public
- * @param array $values List of tags: ['http://google.com/', '...']
- * @return Attribute
- */
- public function setMediaBlacklist(array $values)
- {
- $this->media_blacklist = $values ?: $this->media_blacklist;
- return $this;
- }
-
- /**
- * Set mandatory attributes for whitelisted tags
- *
- * @access public
- * @param array $values List of tags: ['img' => 'src']
- * @return Attribute
- */
- public function setRequiredAttributes(array $values)
- {
- $this->required_attributes = $values ?: $this->required_attributes;
- return $this;
- }
-
- /**
- * Set attributes to automatically to specific tags
- *
- * @access public
- * @param array $values List of tags: ['a' => 'target="_blank"']
- * @return Attribute
- */
- public function setAttributeOverrides(array $values)
- {
- $this->add_attributes = $values ?: $this->add_attributes;
- return $this;
- }
-
- /**
- * Set attributes that must be an integer
- *
- * @access public
- * @param array $values List of tags: ['width', 'height']
- * @return Attribute
- */
- public function setIntegerAttributes(array $values)
- {
- $this->integer_attributes = $values ?: $this->integer_attributes;
- return $this;
- }
-
- /**
- * Set allowed iframe resources
- *
- * @access public
- * @param array $values List of tags: ['http://www.youtube.com']
- * @return Attribute
- */
- public function setIframeWhitelist(array $values)
- {
- $this->iframe_whitelist = $values ?: $this->iframe_whitelist;
- return $this;
- }
-
- /**
- * Set image proxy URL
- *
- * The original image url will be urlencoded
- *
- * @access public
- * @param string $url Proxy URL
- * @return Attribute
- */
- public function setImageProxyUrl($url)
- {
- $this->image_proxy_url = $url ?: $this->image_proxy_url;
- return $this;
- }
-
- /**
- * Set image proxy callback
- *
- * @access public
- * @param \Closure $callback
- * @return Attribute
- */
- public function setImageProxyCallback($callback)
- {
- $this->image_proxy_callback = $callback ?: $this->image_proxy_callback;
- return $this;
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-29 04:13:06 +0000