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* Check scheme in account and post links

* Harden media attachments

* Client-side mitigation

* Client-side mitigation for media attachments
This commit is contained in:
Claire 2025-05-06 15:02:13 +02:00 committed by GitHub
parent 27453ce611
commit 93e6fc9df7
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4 changed files with 25 additions and 4 deletions
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15
app/javascript/mastodon/actions/importer/normalizer.js
View File

@ -40,6 +40,10 @@ export function normalizeAccount(account) {
account.moved = account.moved.id;
}
if (!(account.url.startsWith('http://') || account.url.startsWith('https://'))) {
account.url = account.uri;
}
return account;
}
@ -96,6 +100,17 @@ export function normalizeStatus(status, normalOldStatus) {
normalStatus.contentHtml = emojify(normalStatus.content, emojiMap);
normalStatus.spoilerHtml = emojify(escapeTextContentForBrowser(spoilerText), emojiMap);
normalStatus.hidden = expandSpoilers ? false : spoilerText.length > 0 || normalStatus.sensitive;
if (normalStatus.url && !(normalStatus.url.startsWith('http://') || normalStatus.url.startsWith('https://'))) {
normalStatus.url = null;
}
normalStatus.url ||= normalStatus.uri;
normalStatus.media_attachments.forEach(item => {
if (item.remote_url && !(item.remote_url.startsWith('http://') || item.remote_url.startsWith('https://')))
item.remote_url = null;
});
}
if (normalOldStatus) {

6
app/lib/activitypub/parser/media_attachment_parser.rb
View File

@ -15,13 +15,15 @@ class ActivityPub::Parser::MediaAttachmentParser
end
def remote_url
Addressable::URI.parse(@json['url'])&.normalize&.to_s
url = Addressable::URI.parse(@json['url'])&.normalize&.to_s
url unless unsupported_uri_scheme?(url)
rescue Addressable::URI::InvalidURIError
nil
end
def thumbnail_remote_url
Addressable::URI.parse(@json['icon'].is_a?(Hash) ? @json['icon']['url'] : @json['icon'])&.normalize&.to_s
url = Addressable::URI.parse(@json['icon'].is_a?(Hash) ? @json['icon']['url'] : @json['icon'])&.normalize&.to_s
url unless unsupported_uri_scheme?(url)
rescue Addressable::URI::InvalidURIError
nil
end

5
app/lib/activitypub/parser/status_parser.rb
View File

@ -27,7 +27,10 @@ class ActivityPub::Parser::StatusParser
end
def url
url_to_href(@object['url'], 'text/html') if @object['url'].present?
return if @object['url'].blank?
url = url_to_href(@object['url'], 'text/html')
url unless unsupported_uri_scheme?(url)
end
def text

3
app/lib/activitypub/tag_manager.rb
View File

@ -4,6 +4,7 @@ require 'singleton'
class ActivityPub::TagManager
include Singleton
include JsonLdHelper
include RoutingHelper
CONTEXT = 'https://www.w3.org/ns/activitystreams'
@ -17,7 +18,7 @@ class ActivityPub::TagManager
end
def url_for(target)
return target.url if target.respond_to?(:local?) && !target.local?
return unsupported_uri_scheme?(target.url) ? nil : target.url if target.respond_to?(:local?) && !target.local?
return unless target.respond_to?(:object_type)