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Informations about the package htmlpurifier-html5
HTML5 Definitions for HTML Purifier
This library provides HTML5 element definitions for HTML Purifier, compliant with the WHATWG spec.
It is the most complete HTML5-compliant solution among all based on HTML Purifier. Apart from providing the most extensive set of element definitions, it provides tidy/sanitization rules for transforming the input into a valid HTML5 output.
Installation
Install with Composer by running the following command:
Usage
The most basic usage is similar to the original HTML Purifier. Create a HTML5-compatible config
using HTMLPurifier_HTML5Config::createDefault()
factory method, and then pass it to an HTMLPurifier
instance:
To modify the config you can either instantiate the config with a configuration array passed to
HTMLPurifier_HTML5Config::create()
, or by calling set
method on an already existing config instance.
For example, to allow IFRAME
s with Youtube videos you can do the following:
or equivalently:
Configuration
Apart from HTML Purifier's built-in configuration directives, the following new directives are also supported:
-
Attr.AllowedInputTypes
Version added: 0.1.12\ Type: Lookup (or null)\ Default:
null
List of allowed input types, chosen from the types defined in the spec. By default, the setting is
null
, meaning there is no restriction on allowed types. Empty array means that no explicittype
attributes are allowed, effectively making all inputs a text inputs. -
HTML.Forms
Version added: 0.1.12\ Type: Boolean\ Default:
false
Whether or not to permit form elements in the user input, regardless of %HTML.Trusted value. Please be very careful when using this functionality, as enabling forms in untrusted documents may allow for phishing attacks.
-
HTML.IframeAllowFullscreen
Version added: 0.1.11\ Type: Boolean\ Default:
false
Whether or not to permit
allowfullscreen
attribute oniframe
tags. It requires either %HTML.SafeIframe or %HTML.Trusted to betrue
. -
HTML.Link
Version added: 0.1.12\ Type: Boolean\ Default:
false
Permit the
link
tags in the user input, regardless of %HTML.Trusted value. This effectively allowslink
tags without allowing other untrusted elements.If enabled, URIs in
link
tags will not be matched against a whitelist specified in %URI.SafeLinkRegexp (unless %HTML.SafeIframe is also enabled). -
HTML.SafeLink
Version added: 0.1.12\ Type: Boolean\ Default:
false
Whether to permit
link
tags in untrusted documents. This directive must be accompanied by a whitelist of permitted URIs via %URI.SafeLinkRegexp, otherwise nolink
tags will be allowed. -
HTML.XHTML
Version added: 0.1.12\ Type: Boolean\ Default:
false
While deprecated in HTML 4.01 / XHTML 1.0 context, in HTML5 it's used for enabling support for namespaced attributes and XML self-closing tags.
When enabled it causes
xml:lang
attribute to take precedence overlang
, when both attributes are present on the same element. -
URI.SafeLinkRegexp
Version added: 0.1.12\ Type: String\ Default:
null
A PCRE regular expression that will be matched against a
<link>
URI. This directive only has an effect if %HTML.SafeLink is enabled. Here are some example values:%^https?://localhost/%
- Allow localhost URIsUse
Attr.AllowedRel
to control permitted link relationship types.
Supported HTML5 elements
Aside from HTML elements supported originally by HTML Purifier, this library adds support for the following HTML5 elements:
<article>
, <aside>
, <audio>
, <bdi>
, <data>
, <details>
, <dialog>
, <figcaption>
, <figure>
, <footer>
, <header>
, <hgroup>
, <main>
, <mark>
, <nav>
, <picture>
, <progress>
, <section>
, <source>
, <summary>
, <time>
, <track>
, <video>
, <wbr>
as well as HTML5 attributes added to existing HTML elements, such as:
<a>
, <del>
, <fieldset>
, <ins>
, <script>
License
The MIT License (MIT). See the LICENSE file.