discourse/app/controllers/email_controller.rb

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# frozen_string_literal: true
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class EmailController < ApplicationController
layout "no_ember"
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skip_before_action :check_xhr, :preload_json, :redirect_to_login_if_required
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def unsubscribe
key = UnsubscribeKey.includes(:user).find_by(key: params[:key])
@found = key.present?
@key_owner_found = key&.user.present?
if @found && @key_owner_found
UnsubscribeKey.get_unsubscribe_strategy_for(key)&.prepare_unsubscribe_options(self)
if current_user.present? && (@user != current_user)
@different_user = @user.name
@return_url = request.original_url
end
end
end
def perform_unsubscribe
RateLimiter.new(nil, "unsubscribe_#{request.ip}", 10, 1.minute).performed!
key = UnsubscribeKey.find_by(key: params[:key])
raise Discourse::NotFound if key.nil? || key.user.nil?
user = key.user
updated = UnsubscribeKey.get_unsubscribe_strategy_for(key)&.unsubscribe(params)
if updated
cache_key = "unsub_#{SecureRandom.hex}"
Discourse.cache.write cache_key, user.email, expires_in: 1.hour
url = path("/email/unsubscribed?key=#{cache_key}")
url += "&topic_id=#{key.associated_topic.id}" if key.associated_topic
redirect_to url
else
redirect_back fallback_location: path("/")
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end
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end
def unsubscribed
@email = Discourse.cache.read(params[:key])
@topic_id = params[:topic_id]
user = User.find_by_email(@email)
raise Discourse::NotFound unless user
topic = Topic.find_by(id: params[:topic_id].to_i) if @topic_id
@topic = topic if topic && Guardian.new(nil).can_see?(topic)
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end
end