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author | Anthony Bellew <anthonyreflected@gmail.com> | 2017-01-25 20:53:57 -0700 |
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committer | GitHub <noreply@github.com> | 2017-01-25 20:53:57 -0700 |
commit | 3d890c407356c8e0e7dd9b64e8e232ededcff8e8 (patch) | |
tree | a22df9a8737250f97a6024943af3445a163917b3 /app/services/fetch_link_card_service.rb | |
parent | febe2449bb14f3d877fb934ceb6d52e320712bac (diff) | |
parent | 905c82917959a5afe24cb85c62c0b0ba13f0da8b (diff) |
Merge pull request #3 from tootsuite/master
Updating to current
Diffstat (limited to 'app/services/fetch_link_card_service.rb')
-rw-r--r-- | app/services/fetch_link_card_service.rb | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/app/services/fetch_link_card_service.rb b/app/services/fetch_link_card_service.rb new file mode 100644 index 000000000..005e5acea --- /dev/null +++ b/app/services/fetch_link_card_service.rb @@ -0,0 +1,35 @@ +# frozen_string_literal: true + +class FetchLinkCardService < BaseService + def call(status) + # Get first URL + url = URI.extract(status.text).reject { |uri| (uri =~ /\Ahttps?:\/\//).nil? }.first + + return if url.nil? + + response = http_client.get(url) + + return if response.code != 200 || response.mime_type != 'text/html' + + page = Nokogiri::HTML(response.to_s) + card = PreviewCard.where(status: status).first_or_initialize(status: status, url: url) + + card.title = meta_property(page, 'og:title') || page.at_xpath('//title')&.content + card.description = meta_property(page, 'og:description') || meta_property(page, 'description') + card.image = URI.parse(meta_property(page, 'og:image')) if meta_property(page, 'og:image') + + return if card.title.blank? + + card.save_with_optional_image! + end + + private + + def http_client + HTTP.timeout(:per_operation, write: 10, connect: 10, read: 10).follow + end + + def meta_property(html, property) + html.at_xpath("//meta[@property=\"#{property}\"]")&.attribute('content')&.value || html.at_xpath("//meta[@name=\"#{property}\"]")&.attribute('content')&.value + end +end |