HTMLPurifier_AttrDef_URI Class Reference

Validates a URI as defined by RFC 3986. More...

Inheritance diagram for HTMLPurifier_AttrDef_URI:

Collaboration diagram for HTMLPurifier_AttrDef_URI:

Public Member Functions
	__construct ($embeds_resource=false)
	make ($string)
	Factory method for creating this class from a string.
	validate ($uri, $config, $context)
	Validates and cleans passed string according to a definition.
Public Member Functions inherited from HTMLPurifier_AttrDef
	parseCDATA ($string)
	Convenience method that parses a string as if it were CDATA.

Protected Attributes
	$parser
	$embedsResource

Additional Inherited Members
Data Fields inherited from HTMLPurifier_AttrDef
	$minimized = false
	Tells us whether or not an HTML attribute is minimized.
	$required = false
	Tells us whether or not an HTML attribute is required.
Protected Member Functions inherited from HTMLPurifier_AttrDef
	mungeRgb ($string)
	Removes spaces from rgb(0, 0, 0) so that shorthand CSS properties work properly.
	expandCSSEscape ($string)
	Parses a possibly escaped CSS string and returns the "pure" version of it.

Detailed Description

Validates a URI as defined by RFC 3986.

Note

Scheme-specific mechanics deferred to HTMLPurifier_URIScheme

Definition at line 7 of file URI.php.

Constructor & Destructor Documentation

HTMLPurifier_AttrDef_URI::__construct

(

$embeds_resource = false

)

Parameters

$embeds_resource_resource

Does the URI here result in an extra HTTP request?

Definition at line 16 of file URI.php.

                                                          {
        $this->parser = new HTMLPurifier_URIParser();
        $this->embedsResource = (bool) $embeds_resource;
    }

Member Function Documentation

HTMLPurifier_AttrDef_URI::make

(

$string

)

Factory method for creating this class from a string.

Parameters

$string

String construction info

Returns

Created AttrDef object corresponding to $string

Reimplemented from HTMLPurifier_AttrDef.

Definition at line 21 of file URI.php.

                                  {
        $embeds = ($string === 'embedded');
        return new HTMLPurifier_AttrDef_URI($embeds);
    }

HTMLPurifier_AttrDef_URI::validate	(		$string,
			$config,
			$context
	)

Validates and cleans passed string according to a definition.

Parameters

$string	String to be validated and cleaned.
$config	Mandatory HTMLPurifier_Config object.
$context	Mandatory HTMLPurifier_AttrContext object.

Reimplemented from HTMLPurifier_AttrDef.

Reimplemented in HTMLPurifier_AttrDef_CSS_URI.

Definition at line 26 of file URI.php.

References $ok, $result, and HTMLPurifier_AttrDef\parseCDATA().

                                                      {

        if ($config->get('URI.Disable')) return false;

        $uri = $this->parseCDATA($uri);

        // parse the URI
        $uri = $this->parser->parse($uri);
        if ($uri === false) return false;

        // add embedded flag to context for validators
        $context->register('EmbeddedURI', $this->embedsResource);

        $ok = false;
        do {

            // generic validation
            $result = $uri->validate($config, $context);
            if (!$result) break;

            // chained filtering
            $uri_def = $config->getDefinition('URI');
            $result = $uri_def->filter($uri, $config, $context);
            if (!$result) break;

            // scheme-specific validation
            $scheme_obj = $uri->getSchemeObj($config, $context);
            if (!$scheme_obj) break;
            if ($this->embedsResource && !$scheme_obj->browsable) break;
            $result = $scheme_obj->validate($uri, $config, $context);
            if (!$result) break;

            // Post chained filtering
            $result = $uri_def->postFilter($uri, $config, $context);
            if (!$result) break;

            // survived gauntlet
            $ok = true;

        } while (false);

        $context->destroy('EmbeddedURI');
        if (!$ok) return false;

        // back to string
        return $uri->toString();

    }

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Field Documentation

HTMLPurifier_AttrDef_URI::$embedsResource

protected

Definition at line 11 of file URI.php.

HTMLPurifier_AttrDef_URI::$parser

protected

Definition at line 10 of file URI.php.

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The documentation for this class was generated from the following file:

• Services/Html/HtmlPurifier/library/HTMLPurifier/AttrDef/URI.php