74a6f42501
opengraph_parser is basically unmainted, issues are ignored or deliberately closed without fixing. It pollutes the global namespace and has no verification of correctness. The opengraph gem has basically the same issues, not really maintained, unreleased patches on master since over a year, not really smart either. So I created my own version and while at it, why not strive try to be complete and robust, although it's still a work in progress. This also improves general URL detection by parsing them from the message after stripping markdown. An additional dependency was added to support fetching sites that require cookies to work at all. For the same reason Faraday's default redirect limit was bumped.
46 lines
1.1 KiB
Ruby
46 lines
1.1 KiB
Ruby
class OpenGraphCache < ActiveRecord::Base
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validates :title, :presence => true
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validates :ob_type, :presence => true
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validates :image, :presence => true
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validates :url, :presence => true
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has_many :posts
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acts_as_api
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api_accessible :backbone do |t|
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t.add :title
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t.add :ob_type
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t.add :image
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t.add :description
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t.add :url
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end
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def image
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if AppConfig.privacy.camo.proxy_opengraph_thumbnails?
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Diaspora::Camo.image_url(self[:image])
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else
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self[:image]
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end
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end
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def self.find_or_create_by(opts)
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cache = OpenGraphCache.find_or_initialize_by(opts)
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cache.fetch_and_save_opengraph_data! unless cache.persisted?
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cache if cache.persisted? # Make this an after create callback and drop this method ?
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end
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def fetch_and_save_opengraph_data!
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object = OpenGraphReader.fetch!(self.url)
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return unless object
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self.title = object.og.title.truncate(255)
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self.ob_type = object.og.type
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self.image = object.og.image.url
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self.url = object.og.url
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self.description = object.og.description
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self.save
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rescue OpenGraphReader::NoOpenGraphDataError
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end
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end
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