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Merge pull request #1418 from albertsun/feature/twilio-receive-texts

Twilio receive text message agent

Andrew Cantino 9 anos atrás
pai
32dd4fbd3f 4061f6ef56
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2 arquivos alterados com 195 adições e 0 exclusões
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  1. 96 0
      app/models/agents/twilio_receive_text_agent.rb
  2. 99 0
      spec/models/agents/twilio_receive_text_agent_spec.rb

+ 96 - 0
app/models/agents/twilio_receive_text_agent.rb
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+module Agents
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+  class TwilioReceiveTextAgent < Agent
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+    cannot_be_scheduled!
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+    cannot_receive_events!
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+
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+    gem_dependency_check { defined?(Twilio) }
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+
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+    description do <<-MD
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+      The Twilio Receive Text Agent receives text messages from Twilio and emits them as events.
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+
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+      #{'## Include `twilio-ruby` in your Gemfile to use this Agent!' if dependencies_missing?}
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+
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+      In order to create events with this agent, configure Twilio to send POST requests to:
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+
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+      ```
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+      #{post_url}
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+      ```
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+
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+      #{'The placeholder symbols above will be replaced by their values once the agent is saved.' unless id}
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+
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+      Options:
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+
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+        * `server_url` must be set to the URL of your
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+        Huginn installation (probably "https://#{ENV['DOMAIN']}"), which must be web-accessible.  Be sure to set http/https correctly.
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+
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+        * `account_sid` and `auth_token` are your Twilio account credentials. `auth_token` must be the primary auth token for your Twilio accout.
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+
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+        * If `reply_text` is set, it's contents will be sent back as a confirmation text.
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+
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+        * `expected_receive_period_in_days` - How often you expect to receive events this way. Used to determine if the agent is working.
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+      MD
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+    end
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+
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+    def default_options
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+      {
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+        'account_sid' => 'ACxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
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+        'auth_token' => 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
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+        'server_url'    => "https://#{ENV['DOMAIN'].presence || example.com}",
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+        'reply_text'    => '',
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+        "expected_receive_period_in_days" => 1
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+      }
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+    end
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+
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+    def validate_options
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+      unless options['account_sid'].present? && options['auth_token'].present? && options['server_url'].present? && options['expected_receive_period_in_days'].present?
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+        errors.add(:base, 'account_sid, auth_token, server_url, and expected_receive_period_in_days are all required')
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+      end
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+    end
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+
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+    def working?
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+      event_created_within?(interpolated['expected_receive_period_in_days']) && !recent_error_logs?
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+    end
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+
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+    def post_url
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+      if interpolated['server_url'].present?
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+        "#{interpolated['server_url']}/users/#{user.id}/web_requests/#{id || ':id'}/sms-endpoint"
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+      else
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+        "https://#{ENV['DOMAIN']}/users/#{user.id}/web_requests/#{id || ':id'}/sms-endpoint"
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+      end
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+    end
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+
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+    def receive_web_request(request)
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+      params = request.params.except(:action, :controller, :agent_id, :user_id, :format)
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+      method = request.method_symbol.to_s
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+      headers = request.headers
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+
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+      # check the last url param: 'secret'
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+      secret = params.delete('secret')
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+      return ["Not Authorized", 401] unless secret == "sms-endpoint"
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+
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+      signature = headers['HTTP_X_TWILIO_SIGNATURE']
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+
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+      # validate from twilio
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+      @validator ||= Twilio::Util::RequestValidator.new interpolated['auth_token']
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+      if !@validator.validate(post_url, params, signature)
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+        error("Twilio Signature Failed to Validate\n\n"+
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+          "URL: #{post_url}\n\n"+
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+          "POST params: #{params.inspect}\n\n"+
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+          "Signature: #{signature}"
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+          )
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+        return ["Not authorized", 401]
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+      end
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+
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+      if create_event(payload: params)
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+        response = Twilio::TwiML::Response.new do |r|
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+          if interpolated['reply_text'].present?
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+            r.Message interpolated['reply_text']
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+          end
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+        end
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+        return [response.text, 201, "text/xml"]
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+      else
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+        return ["Bad request", 400]
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+      end
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+    end
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+  end
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+end

+ 99 - 0
spec/models/agents/twilio_receive_text_agent_spec.rb
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+require 'rails_helper'
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+
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+# Twilio Params
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+# https://www.twilio.com/docs/api/twiml/sms/twilio_request
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+# url: https://b924379f.ngrok.io/users/1/web_requests/7/sms-endpoint
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+# params: {"ToCountry"=>"US", "ToState"=>"NY", "SmsMessageSid"=>"SMxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", "NumMedia"=>"0", "ToCity"=>"NEW YORK", "FromZip"=>"48342", "SmsSid"=>"SMxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", "FromState"=>"MI", "SmsStatus"=>"received", "FromCity"=>"PONTIAC", "Body"=>"Lol", "FromCountry"=>"US", "To"=>"+1347555555", "ToZip"=>"10016", "NumSegments"=>"1", "MessageSid"=>"SMxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", "AccountSid"=>"ACxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", "From"=>"+12485551111", "ApiVersion"=>"2010-04-01"}
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+# signature: K29NMD9+v5/QLzbdGZW/DRGyxNU=
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+
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+describe Agents::TwilioReceiveTextAgent do
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+  before do
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+    stub.any_instance_of(Twilio::Util::RequestValidator).validate { true }
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+  end
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+
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+  let(:payload) {
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+    {
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+      "ToCountry"=>"US",
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+      "ToState"=>"NY",
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+      "SmsMessageSid"=>"SMxxxxxxxxxxxxxxxx",
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+      "NumMedia"=>"0",
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+      "ToCity"=>"NEW YORK",
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+      "FromZip"=>"48342",
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+      "SmsSid"=>"SMxxxxxxxxxxxxxxxx",
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+      "FromState"=>"MI",
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+      "SmsStatus"=>"received",
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+      "FromCity"=>"PONTIAC",
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+      "Body"=>"Hy ",
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+      "FromCountry"=>"US",
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+      "To"=>"+1347555555",
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+      "ToZip"=>"10016",
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+      "NumSegments"=>"1",
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+      "MessageSid"=>"SMxxxxxxxxxxxxxxxx",
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+      "AccountSid"=>"ACxxxxxxxxxxxxxxxx",
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+      "From"=>"+12485551111",
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+      "ApiVersion"=>"2010-04-01"}
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+  }
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+
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+  describe 'receive_twilio_text_message' do
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+    before do
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+      @agent = Agents::TwilioReceiveTextAgent.new(
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+                  :name => 'twilioreceive',
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+                  :options => { :account_sid => 'x',
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+                               :auth_token => 'x',
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+                               :server_url => 'http://example.com',
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+                               :expected_receive_period_in_days => 1
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+                            }
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+                  )
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+      @agent.user = users(:bob)
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+      @agent.save!
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+    end
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+
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+    it 'should create event upon receiving request' do
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+
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+      request = ActionDispatch::Request.new({
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+          'action_dispatch.request.request_parameters' => payload.merge({"secret" => "sms-endpoint"}),
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+          'REQUEST_METHOD' => "POST",
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+          'HTTP_ACCEPT' => 'application/xml',
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+          'HTTP_X_TWILIO_SIGNATURE' => "HpS7PBa1Agvt4OtO+wZp75IuQa0="
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+        })
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+
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+      out = nil
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+      expect {
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+        out = @agent.receive_web_request(request)
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+      }.to change { Event.count }.by(1)
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+      expect(out).to eq(["<?xml version=\"1.0\" encoding=\"UTF-8\"?><Response></Response>", 201, "text/xml"])
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+      expect(Event.last.payload).to eq(payload)
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+    end
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+  end
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+
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+  describe 'receive_twilio_text_message and send a response' do
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+    before do
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+      @agent = Agents::TwilioReceiveTextAgent.new(
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+                  :name => 'twilioreceive',
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+                  :options => { :account_sid => 'x',
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+                               :auth_token => 'x',
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+                               :server_url => 'http://example.com',
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+                               :reply_text => "thanks!",
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+                               :expected_receive_period_in_days => 1
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+                            }
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+                  )
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+      @agent.user = users(:bob)
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+      @agent.save!
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+    end
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+
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+    it 'should create event and send back TwiML Message if reply_text is set' do
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+      out = nil
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+      request = ActionDispatch::Request.new({
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+          'action_dispatch.request.request_parameters' => payload.merge({"secret" => "sms-endpoint"}),
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+          'REQUEST_METHOD' => "POST",
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+          'HTTP_ACCEPT' => 'application/xml',
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+          'HTTP_X_TWILIO_SIGNATURE' => "HpS7PBa1Agvt4OtO+wZp75IuQa0="
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+        })
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+      expect {
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+        out = @agent.receive_web_request(request)
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+      }.to change { Event.count }.by(1)
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+      expect(out).to eq(["<?xml version=\"1.0\" encoding=\"UTF-8\"?><Response><Message>thanks!</Message></Response>", 201, "text/xml"])
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+      expect(Event.last.payload).to eq(payload)
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+    end
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+  end
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+end