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mastodon
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mastodon/app/controllers/api/push_controller.rb

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# frozen_string_literal: true
class Api::PushController < ApiController
def update
response, status = process_push_request
render plain: response, status: status
end
private
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def process_push_request
case hub_mode
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when 'subscribe'
Pubsubhubbub::SubscribeService.new.call(account_from_topic, hub_callback, hub_secret, hub_lease_seconds)
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when 'unsubscribe'
Pubsubhubbub::UnsubscribeService.new.call(account_from_topic, hub_callback)
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else
["Unknown mode: #{hub_mode}", 422]
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end
end
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def hub_mode
params['hub.mode']
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end
def hub_topic
params['hub.topic']
end
def hub_callback
params['hub.callback']
end
def hub_lease_seconds
params['hub.lease_seconds']
end
def hub_secret
params['hub.secret']
end
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def account_from_topic
if hub_topic.present? && local_domain? && account_feed_path?
Account.find_local(hub_topic_params[:username])
end
end
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def hub_topic_params
@_hub_topic_params ||= Rails.application.routes.recognize_path(hub_topic_uri.path)
end
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def hub_topic_uri
@_hub_topic_uri ||= Addressable::URI.parse(hub_topic).normalize
end
def local_domain?
TagManager.instance.web_domain?(hub_topic_domain)
end
def hub_topic_domain
hub_topic_uri.host + (hub_topic_uri.port ? ":#{hub_topic_uri.port}" : '')
end
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def account_feed_path?
hub_topic_params[:controller] == 'accounts' && hub_topic_params[:action] == 'show' && hub_topic_params[:format] == 'atom'
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end
end