65a14ccc2c
Refactored :extract_truncated_link method Removed complicated while loop in avoiding cutting off links, using refactoring from MrZYX
103 lines
2.9 KiB
Ruby
103 lines
2.9 KiB
Ruby
class Services::Twitter < Service
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include ActionView::Helpers::TextHelper
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include MarkdownifyHelper
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MAX_CHARACTERS = 140
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SHORTENED_URL_LENGTH = 21
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LINK_PATTERN = %r{https?://\S+}
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def provider
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"twitter"
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end
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def post(post, url='')
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Rails.logger.debug("event=post_to_service type=twitter sender_id=#{self.user_id}")
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(0...20).each do |retry_count|
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begin
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message = build_twitter_post(post, url, retry_count)
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@tweet = client.update(message)
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break
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rescue Twitter::Error::Forbidden => e
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if e.message != 'Status is over 140 characters' || retry_count == 20
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raise e
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end
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end
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end
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post.tweet_id = @tweet.id
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post.save
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end
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def adjust_length_for_urls(post_text)
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real_length = post_text.length
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URI.extract( post_text, ['http','https'] ) do |a_url|
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# add or subtract from real length - urls for tweets are always
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# shortened to SHORTENED_URL_LENGTH
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if a_url.length >= SHORTENED_URL_LENGTH
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real_length -= a_url.length - SHORTENED_URL_LENGTH
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else
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real_length += SHORTENED_URL_LENGTH - a_url.length
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end
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end
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return real_length
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end
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def add_post_link(post, post_text, maxchars)
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post_url = Rails.application.routes.url_helpers.short_post_url(
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post,
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:protocol => AppConfig.pod_uri.scheme,
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:host => AppConfig.pod_uri.authority
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)
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truncated_text = truncate post_text, length: maxchars - SHORTENED_URL_LENGTH + 1
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truncated_text = restore_truncated_url truncated_text, post_text, maxchars
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"#{truncated_text} #{post_url}"
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end
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def build_twitter_post(post, url, retry_count=0)
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maxchars = MAX_CHARACTERS - retry_count*5
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post_text = strip_markdown(post.text(:plain_text => true))
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#if photos, always include url, otherwise not for short posts
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if adjust_length_for_urls(post_text) > maxchars || post.photos.any?
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post_text = add_post_link(post, post_text, maxchars)
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end
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return post_text
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end
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def profile_photo_url
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client.user(nickname).profile_image_url_https("original")
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end
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def delete_post(post)
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if post.present? && post.tweet_id.present?
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Rails.logger.debug("event=delete_from_service type=twitter sender_id=#{self.user_id}")
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delete_from_twitter(post.tweet_id)
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end
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end
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def delete_from_twitter(service_post_id)
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client.status_destroy(service_post_id)
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end
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private
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def client
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@client ||= Twitter::Client.new(
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oauth_token: self.access_token,
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oauth_token_secret: self.access_secret
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)
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end
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def restore_truncated_url truncated_text, post_text, maxchars
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return truncated_text if truncated_text !~ /#{LINK_PATTERN}\Z/
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url = post_text.match(LINK_PATTERN, truncated_text.rindex('http'))[0]
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truncated_text = truncate(
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post_text,
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length: maxchars - SHORTENED_URL_LENGTH + 2,
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separator: ' ',
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omission: ''
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)
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"#{truncated_text} #{url} ..."
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end
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end
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