discourse/app/controllers/clicks_controller.rb

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class ClicksController < ApplicationController
skip_before_filter :check_xhr
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def track
params = track_params.merge(ip: request.remote_ip)
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if params[:topic_id].present? || params[:post_id].present?
params.merge!({ user_id: current_user.id }) if current_user.present?
@redirect_url = TopicLinkClick.create_from(params)
if @redirect_url.blank? && params[:url].index('?')
# Check the url without query parameters
params[:url].sub!(/\?.*$/, '')
@redirect_url = TopicLinkClick.create_from(params)
end
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end
# Sometimes we want to record a link without a 302. Since XHR has to load the redirected
# URL we want it to not return a 302 in those cases.
if params[:redirect] == 'false' || @redirect_url.blank?
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render nothing: true
else
redirect_to(@redirect_url)
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end
end
private
def track_params
params.require(:url)
params.permit(:url, :post_id, :topic_id, :redirect)
end
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end