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mastodon/app/lib/sanitize_config.rb
unarist 6bd6dcf6df Allow "class" attribute on the "a" tag in sanitization (#3623)
This preserves `<a ... class="u-url mention">` from other Mastodon instances.
2017-06-07 15:57:30 +02:00

50 lines
1.2 KiB
Ruby

# frozen_string_literal: true
class Sanitize
module Config
HTTP_PROTOCOLS ||= ['http', 'https', :relative].freeze
MASTODON_STRICT ||= freeze_config(
elements: %w(p br span a),
attributes: {
'a' => %w(href rel class),
'span' => %w(class),
},
add_attributes: {
'a' => {
'rel' => 'nofollow noopener',
'target' => '_blank',
},
},
protocols: {
'a' => { 'href' => HTTP_PROTOCOLS },
}
)
MASTODON_OEMBED ||= freeze_config merge(
RELAXED,
elements: RELAXED[:elements] + %w(audio embed iframe source video),
attributes: merge(
RELAXED[:attributes],
'audio' => %w(controls),
'embed' => %w(height src type width),
'iframe' => %w(allowfullscreen frameborder height scrolling src width),
'source' => %w(src type),
'video' => %w(controls height loop width),
'div' => [:data]
),
protocols: merge(
RELAXED[:protocols],
'embed' => { 'src' => HTTP_PROTOCOLS },
'iframe' => { 'src' => HTTP_PROTOCOLS },
'source' => { 'src' => HTTP_PROTOCOLS }
)
)
end
end