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@ -40,6 +40,12 @@ class FetchLinkCardService < BaseService |
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return if res.code != 405 && (res.code != 200 || res.mime_type != 'text/html') |
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@response = Request.new(:get, @url).perform |
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return if @response.code != 200 || @response.mime_type != 'text/html' |
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@html = @response.to_s |
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attempt_oembed || attempt_opengraph |
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end |
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@ -70,32 +76,32 @@ class FetchLinkCardService < BaseService |
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end |
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def attempt_oembed |
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response = OEmbed::Providers.get(@url) |
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embed = OEmbed::Providers.get(@url, html: @html) |
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return false unless response.respond_to?(:type) |
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return false unless embed.respond_to?(:type) |
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@card.type = response.type |
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@card.title = response.respond_to?(:title) ? response.title : '' |
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@card.author_name = response.respond_to?(:author_name) ? response.author_name : '' |
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@card.author_url = response.respond_to?(:author_url) ? response.author_url : '' |
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@card.provider_name = response.respond_to?(:provider_name) ? response.provider_name : '' |
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@card.provider_url = response.respond_to?(:provider_url) ? response.provider_url : '' |
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@card.type = embed.type |
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@card.title = embed.respond_to?(:title) ? embed.title : '' |
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@card.author_name = embed.respond_to?(:author_name) ? embed.author_name : '' |
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@card.author_url = embed.respond_to?(:author_url) ? embed.author_url : '' |
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@card.provider_name = embed.respond_to?(:provider_name) ? embed.provider_name : '' |
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@card.provider_url = embed.respond_to?(:provider_url) ? embed.provider_url : '' |
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@card.width = 0 |
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@card.height = 0 |
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case @card.type |
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when 'link' |
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@card.image = URI.parse(response.thumbnail_url) if response.respond_to?(:thumbnail_url) |
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@card.image = URI.parse(embed.thumbnail_url) if embed.respond_to?(:thumbnail_url) |
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when 'photo' |
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return false unless response.respond_to?(:url) |
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@card.embed_url = response.url |
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@card.image = URI.parse(response.url) |
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@card.width = response.width.presence || 0 |
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@card.height = response.height.presence || 0 |
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return false unless embed.respond_to?(:url) |
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@card.embed_url = embed.url |
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@card.image = URI.parse(embed.url) |
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@card.width = embed.width.presence || 0 |
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@card.height = embed.height.presence || 0 |
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when 'video' |
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@card.width = response.width.presence || 0 |
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@card.height = response.height.presence || 0 |
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@card.html = Formatter.instance.sanitize(response.html, Sanitize::Config::MASTODON_OEMBED) |
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@card.width = embed.width.presence || 0 |
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@card.height = embed.height.presence || 0 |
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@card.html = Formatter.instance.sanitize(embed.html, Sanitize::Config::MASTODON_OEMBED) |
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when 'rich' |
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# Most providers rely on <script> tags, which is a no-no |
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return false |
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@ -107,17 +113,11 @@ class FetchLinkCardService < BaseService |
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end |
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def attempt_opengraph |
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response = Request.new(:get, @url).perform |
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return if response.code != 200 || response.mime_type != 'text/html' |
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html = response.to_s |
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detector = CharlockHolmes::EncodingDetector.new |
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detector.strip_tags = true |
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guess = detector.detect(html, response.charset) |
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page = Nokogiri::HTML(html, nil, guess&.fetch(:encoding, nil)) |
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guess = detector.detect(@html, @response.charset) |
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page = Nokogiri::HTML(@html, nil, guess&.fetch(:encoding, nil)) |
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if meta_property(page, 'twitter:player') |
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@card.type = :video |
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@ -134,16 +134,16 @@ class FetchLinkCardService < BaseService |
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@card.image_remote_url = meta_property(page, 'og:image') if meta_property(page, 'og:image') |
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end |
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@card.title = meta_property(page, 'og:title').presence || page.at_xpath('//title')&.content || '' |
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@card.description = meta_property(page, 'og:description').presence || meta_property(page, 'description') || '' |
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@card.title = meta_property(page, 'og:title').presence || page.at_xpath('//title')&.content || '' |
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@card.description = meta_property(page, 'og:description').presence || meta_property(page, 'description') || '' |
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return if @card.title.blank? && @card.html.blank? |
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@card.save_with_optional_image! |
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end |
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def meta_property(html, property) |
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html.at_xpath("//meta[@property=\"#{property}\"]")&.attribute('content')&.value || html.at_xpath("//meta[@name=\"#{property}\"]")&.attribute('content')&.value |
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def meta_property(page, property) |
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page.at_xpath("//meta[@property=\"#{property}\"]")&.attribute('content')&.value || page.at_xpath("//meta[@name=\"#{property}\"]")&.attribute('content')&.value |
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end |
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def lock_options |
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