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78 lines
2.5 KiB
Ruby
78 lines
2.5 KiB
Ruby
module WopiUtil
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require 'open-uri'
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# Used for timestamp
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UNIX_EPOCH_IN_CLR_TICKS = 621355968000000000
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CLR_TICKS_PER_SECOND = 10000000
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DISCOVERY_TTL = 60*60*24
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DISCOVERY_TTL.freeze
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# For more explanation see this:
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# http://stackoverflow.com/questions/11888053/
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# convert-net-datetime-ticks-property-to-date-in-objective-c
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def convert_to_unix_timestamp(timestamp)
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Time.at((timestamp-UNIX_EPOCH_IN_CLR_TICKS)/CLR_TICKS_PER_SECOND)
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end
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def get_action(extension, activity)
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get_discovery
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action = WopiAction.find_action(extension, activity)
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end
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def get_discovery
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discovery = WopiDiscovery.first
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return discovery if discovery && discovery.expires >= Time.now.to_i
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initialize_discovery(discovery)
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end
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private
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# Currently only saves Excel, Word and PowerPoint view and edit actions
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def initialize_discovery(discovery)
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begin
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Rails.logger.warn "Initializing discovery"
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discovery.destroy if discovery
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@doc = Nokogiri::XML(open(ENV["WOPI_DISCOVERY_URL"]))
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discovery = WopiDiscovery.new
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discovery.expires = Time.now.to_i + DISCOVERY_TTL
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key = @doc.xpath("//proof-key")
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discovery.proof_key_mod = key.xpath("@modulus").first.value
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discovery.proof_key_exp = key.xpath("@exponent").first.value
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discovery.proof_key_old_mod = key.xpath("@oldmodulus").first.value
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discovery.proof_key_old_exp = key.xpath("@oldexponent").first.value
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discovery.save!
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@doc.xpath("//app").each do |app|
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app_name = app.xpath("@name").first.value
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if ["Excel","Word","PowerPoint","WopiTest"].include?(app_name)
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wopi_app = WopiApp.new
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wopi_app.name = app.xpath("@name").first.value
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wopi_app.icon = app.xpath("@favIconUrl").first.value
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wopi_app.wopi_discovery_id=discovery.id
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wopi_app.save!
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app.xpath("action").each do |action|
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name = action.xpath("@name").first.value
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if ["view","edit","wopitest"].include?(name)
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wopi_action = WopiAction.new
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wopi_action.action = name
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wopi_action.extension = action.xpath("@ext").first.value
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wopi_action.urlsrc = action.xpath("@urlsrc").first.value
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wopi_action.wopi_app_id = wopi_app.id
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wopi_action.save!
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end
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end
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end
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end
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discovery
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rescue
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Rails.logger.warn "Initialization failed"
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discovery = WopiDiscovery.first
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discovery.destroy if discovery
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end
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end
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end
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