mirror of
https://github.com/discourse/discourse.git
synced 2024-11-23 09:17:08 +08:00
39b2fb8649
Upload.secure_media_url? raised an exceptions when the URL was invalid, which was a issue in some situations where secure media URLs must be removed. For example, sending digests used PrettyText.strip_secure_media, which used Upload.secure_media_url? to replace secure media with placeholders. If the URL was invalid, then an exception would be raised and left unhandled. Now instead in UrlHelper.rails_route_from_url we return nil if there is something wrong with the URL. Co-authored-by: Bianca Nenciu <nenciu.bianca@gmail.com>
117 lines
3.1 KiB
Ruby
117 lines
3.1 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class UrlHelper
|
|
|
|
# At the moment this handles invalid URLs that browser address bar accepts
|
|
# where second # is not encoded
|
|
#
|
|
# Longer term we can add support of simpleidn and encode unicode domains
|
|
def self.relaxed_parse(url)
|
|
url, fragment = url.split("#", 2)
|
|
uri = URI.parse(url)
|
|
if uri
|
|
# Addressable::URI::CharacterClasses::UNRESERVED is used here because without it
|
|
# the # in the fragment is not encoded
|
|
fragment = Addressable::URI.encode_component(fragment, Addressable::URI::CharacterClasses::UNRESERVED) if fragment&.include?('#')
|
|
uri.fragment = fragment
|
|
uri
|
|
end
|
|
rescue URI::Error
|
|
end
|
|
|
|
def self.encode_and_parse(url)
|
|
URI.parse(Addressable::URI.encode(url))
|
|
end
|
|
|
|
def self.encode(url)
|
|
Addressable::URI.encode(url)
|
|
end
|
|
|
|
def self.unencode(url)
|
|
Addressable::URI.unencode(url)
|
|
end
|
|
|
|
def self.encode_component(url_component)
|
|
Addressable::URI.encode_component(url_component)
|
|
end
|
|
|
|
def self.is_local(url)
|
|
url.present? && (
|
|
Discourse.store.has_been_uploaded?(url) ||
|
|
!!(url =~ Regexp.new("^#{Discourse.base_uri}/(assets|plugins|images)/")) ||
|
|
url.start_with?(Discourse.asset_host || Discourse.base_url_no_prefix)
|
|
)
|
|
end
|
|
|
|
def self.absolute(url, cdn = Discourse.asset_host)
|
|
cdn = "https:#{cdn}" if cdn && cdn =~ /^\/\//
|
|
url =~ /^\/[^\/]/ ? (cdn || Discourse.base_url_no_prefix) + url : url
|
|
end
|
|
|
|
def self.absolute_without_cdn(url)
|
|
self.absolute(url, nil)
|
|
end
|
|
|
|
def self.schemaless(url)
|
|
url.sub(/^http:/i, "")
|
|
end
|
|
|
|
def self.secure_proxy_without_cdn(url)
|
|
self.absolute(Upload.secure_media_url_from_upload_url(url), nil)
|
|
end
|
|
|
|
# Prevents double URL encode
|
|
# https://stackoverflow.com/a/37599235
|
|
def self.escape_uri(uri)
|
|
return uri if s3_presigned_url?(uri)
|
|
UrlHelper.encode_component(CGI.unescapeHTML(UrlHelper.unencode(uri)))
|
|
end
|
|
|
|
def self.rails_route_from_url(url)
|
|
path = URI.parse(encode(url)).path
|
|
Rails.application.routes.recognize_path(path)
|
|
rescue Addressable::URI::InvalidURIError
|
|
nil
|
|
end
|
|
|
|
def self.s3_presigned_url?(url)
|
|
url[/x-amz-(algorithm|credential)/i].present?
|
|
end
|
|
|
|
def self.cook_url(url, secure: false)
|
|
return url unless is_local(url)
|
|
|
|
uri = URI.parse(url)
|
|
filename = File.basename(uri.path)
|
|
is_attachment = !FileHelper.is_supported_media?(filename)
|
|
|
|
no_cdn = SiteSetting.login_required || SiteSetting.prevent_anons_from_downloading_files
|
|
|
|
url = secure ? secure_proxy_without_cdn(url) : absolute_without_cdn(url)
|
|
|
|
# we always want secure media to come from
|
|
# Discourse.base_url_no_prefix/secure-media-uploads
|
|
# to avoid asset_host mixups
|
|
return schemaless(url) if secure
|
|
|
|
unless is_attachment && no_cdn
|
|
url = Discourse.store.cdn_url(url)
|
|
url = local_cdn_url(url) if Discourse.store.external?
|
|
end
|
|
|
|
schemaless(url)
|
|
rescue URI::Error
|
|
url
|
|
end
|
|
|
|
def self.local_cdn_url(url)
|
|
return url if Discourse.asset_host.blank?
|
|
if url.start_with?("/#{Discourse.store.upload_path}/")
|
|
"#{Discourse.asset_host}#{url}"
|
|
else
|
|
url.sub(Discourse.base_url_no_prefix, Discourse.asset_host)
|
|
end
|
|
end
|
|
|
|
end
|