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[HtmlSanitizer] Information about subdomains of allowed hosts (they also match) #18379

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Jun 15, 2023
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[HtmlSanitizer] Information about subdomains of allowed hosts (they also match) #18379

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30 changes: 16 additions & 14 deletions html_sanitizer.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -730,8 +730,8 @@ URLs of ``<a>`` elements:
allowed_link_schemes: ['http', 'https', 'mailto']

# specifies the allowed hosts, the attribute will be dropped if the
# URL contains a different host
allowed_link_hosts: ['symfony.com']
# URL contains a different host which is not a subdomain of the allowed host
allowed_link_hosts: ['symfony.com'] # also allows any subdomain (i.e. www.symfony.com)

# whether to allow relative links (i.e. URLs without scheme and host)
allow_relative_links: true
Expand Down Expand Up @@ -763,7 +763,8 @@ URLs of ``<a>`` elements:
<allowed-link-scheme>mailto</allowed-link-scheme>

<!-- specifies the allowed hosts, the attribute will be dropped if the
URL contains a different host -->
URL contains a different host which is not a subdomain of the allowed host
Also allows any subdomain (i.e. www.symfony.com) -->
<allowed-link-host>symfony.com</allowed-link-host>
</framework:html-sanitizer>
</framework:config>
Expand All @@ -786,8 +787,8 @@ URLs of ``<a>`` elements:
->allowedLinkSchemes(['http', 'https', 'mailto'])

// specifies the allowed hosts, the attribute will be dropped if the
// URL contains a different host
->allowedLinkHost('symfony.com')
// URL contains a different host which is not a subdomain of the allowed host
->allowedLinkHost('symfony.com') // Also allows any subdomain (i.e. www.symfony.com)

// whether to allow relative links (i.e. URLs without scheme and host)
->allowRelativeLinks(true)
Expand All @@ -810,8 +811,8 @@ URLs of ``<a>`` elements:
->allowedLinkSchemes(['http', 'https', 'mailto'])

// specifies the allowed hosts, the attribute will be dropped if the
// URL contains a different host
->allowedLinkHosts(['symfony.com'])
// URL contains a different host which is not a subdomain of the allowed host
->allowedLinkHosts(['symfony.com']) // Also allows any subdomain (i.e. www.symfony.com)

// whether to allow relative links (i.e. URLs without scheme and host)
->allowRelativeLinks()
Expand Down Expand Up @@ -844,8 +845,8 @@ the HTML sanitizer: ``src``, ``href``, ``lowsrc``, ``background`` and ``ping``.
allowed_media_schemes: ['http', 'https', 'mailto']

# specifies the allowed hosts, the attribute will be dropped if the URL
# contains a different host
allowed_media_hosts: ['symfony.com']
# contains a different host which is not a subdomain of the allowed host
allowed_media_hosts: ['symfony.com'] # Also allows any subdomain (i.e. www.symfony.com)

# whether to allow relative URLs (i.e. URLs without scheme and host)
allow_relative_medias: true
Expand Down Expand Up @@ -877,7 +878,8 @@ the HTML sanitizer: ``src``, ``href``, ``lowsrc``, ``background`` and ``ping``.
<allowed-media-scheme>mailto</allowed-media-scheme>

<!-- specifies the allowed hosts, the attribute will be dropped if the URL
contains a different host -->
contains a different host which is not a subdomain of the allowed host.
Also allows any subdomain (i.e. www.symfony.com) -->
<allowed-media-host>symfony.com</allowed-media-host>
</framework:html-sanitizer>
</framework:config>
Expand All @@ -900,8 +902,8 @@ the HTML sanitizer: ``src``, ``href``, ``lowsrc``, ``background`` and ``ping``.
->allowedMediaSchemes(['http', 'https', 'mailto'])

// specifies the allowed hosts, the attribute will be dropped if the URL
// contains a different host
->allowedMediaHost('symfony.com')
// contains a different host which is not a subdomain of the allowed host
->allowedMediaHost('symfony.com') // Also allows any subdomain (i.e. www.symfony.com)

// whether to allow relative URLs (i.e. URLs without scheme and host)
->allowRelativeMedias(true)
Expand All @@ -924,8 +926,8 @@ the HTML sanitizer: ``src``, ``href``, ``lowsrc``, ``background`` and ``ping``.
->allowedMediaSchemes(['http', 'https', 'mailto'])

// specifies the allowed hosts, the attribute will be dropped if the URL
// contains a different host
->allowedMediaHosts(['symfony.com'])
// contains a different host which is not a subdomain of the allowed host
->allowedMediaHosts(['symfony.com']) // Also allows any subdomain (i.e. www.symfony.com)

// whether to allow relative URLs (i.e. URLs without scheme and host)
->allowRelativeMedias()
Expand Down