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Add dropbox agent to emit urls for the given paths.

Guilherme J. Tramontina 11 years ago
parent
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commit
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2 changed files with 130 additions and 0 deletions
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  1. 56 0
      app/models/agents/dropbox_file_url_agent.rb
  2. 74 0
      spec/models/agents/dropbox_file_url_agent_spec.rb

+ 56 - 0
app/models/agents/dropbox_file_url_agent.rb
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+module Agents
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+  class DropboxFileUrlAgent < Agent
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+    include DropboxConcern
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+
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+    cannot_be_scheduled!
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+
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+    description <<-MD
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+      #{'## Include the `dropbox-api` and `omniauth-dropbox` gems in your `Gemfile` and set `DROPBOX_OAUTH_KEY` and `DROPBOX_OAUTH_SECRET` in your environment to use Dropbox Agents.' if dependencies_missing?}
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+      The _DropboxFileUrlAgent_ takes a file path (or multiple files paths) and emits
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+      events with [temporary links](https://www.dropbox.com/developers/core/docs#media).
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+
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+      The incoming event payload needs to have a `paths` key, with a comma-separated list of files you want the URL for. For example:
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+
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+          {
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+            "paths": "first/path, second/path"
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+          }
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+
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+      __TIP__: You can use the _Event Formatting Agent_ to format events before they come in. Here's an example configuration for formatting an event coming out of a _Dropbox Watch Agent_:
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+
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+          {
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+            "instructions": {
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+              "paths": "{{ added | map: 'path' | join: ',' }}"
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+            },
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+            "matchers": [],
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+            "mode": "clean"
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+          }
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+
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+    MD
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+
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+    event_description <<-MD
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+      The event payload will contain the following fields:
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+
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+          {
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+            "url": "https://dl.dropboxusercontent.com/1/view/abcdefghijk/example",
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+            "expires": "Fri, 16 Sep 2011 01:01:25 +0000"
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+          }
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+    MD
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+
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+    def working?
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+      !recent_error_logs?
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+    end
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+
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+    def receive(events)
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+      events.map { |e| e.payload['paths'].split(',').map(&:strip) }
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+        .flatten.each { |path| create_event payload: url_for(path) }
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+    end
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+
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+    private
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+
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+    def url_for(path)
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+      dropbox.find(path).direct_url
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+    end
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+
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+  end
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+
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+end

+ 74 - 0
spec/models/agents/dropbox_file_url_agent_spec.rb
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+require 'spec_helper'
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+
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+describe Agents::DropboxFileUrlAgent do
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+  before(:each) do
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+    @agent = Agents::DropboxFileUrlAgent.new(
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+      name: 'dropbox file to url',
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+      options: {}
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+    )
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+    @agent.user = users(:bob)
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+    @agent.service = services(:generic)
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+    @agent.save!
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+  end
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+
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+  it 'cannot be scheduled' do
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+    expect(@agent.cannot_be_scheduled?).to eq true
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+  end
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+
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+  it 'has agent description' do
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+    expect(@agent.description).to_not be_nil
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+  end
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+
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+  it 'has event description' do
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+    expect(@agent.event_description).to_not be_nil
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+  end
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+
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+  describe "#receive" do
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+
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+    let(:first_dropbox_url_payload)  { { 'url' => 'http://dropbox.com/first/path/url' } }
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+    let(:second_dropbox_url_payload) { { 'url' => 'http://dropbox.com/second/path/url' } }
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+    let(:third_dropbox_url_payload)  { { 'url' => 'http://dropbox.com/third/path/url' } }
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+
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+    def create_event(payload)
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+      event = Event.new(payload: payload)
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+      event.agent = agents(:bob_manual_event_agent)
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+      event.save!
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+      event
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+    end
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+
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+    before(:each) do
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+      stub.proxy(Dropbox::API::Client).new do |api|
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+        stub(api).find('/first/path')  { stub(Dropbox::API::File.new).direct_url { first_dropbox_url_payload } }
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+        stub(api).find('/second/path') { stub(Dropbox::API::File.new).direct_url { second_dropbox_url_payload } }
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+        stub(api).find('/third/path')  { stub(Dropbox::API::File.new).direct_url { third_dropbox_url_payload } }
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+      end
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+    end
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+
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+    context 'with a single path' do
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+
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+      before(:each) { @event = create_event(paths: '/first/path') }
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+
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+      it 'creates one event with the temporary dropbox link' do
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+        expect { @agent.receive([@event]) }.to change(Event, :count).by(1)
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+        expect(Event.last.payload).to eq(first_dropbox_url_payload)
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+      end
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+
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+    end
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+
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+    context 'with multiple comma-separated paths' do
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+
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+      before(:each) { @event = create_event(paths: '/first/path, /second/path, /third/path') }
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+
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+      it 'creates one event with the temporary dropbox link for each path' do
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+        expect { @agent.receive([@event]) }.to change(Event, :count).by(3)
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+        last_events = Event.last(3)
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+        expect(last_events[0].payload).to eq(first_dropbox_url_payload)
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+        expect(last_events[1].payload).to eq(second_dropbox_url_payload)
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+        expect(last_events[2].payload).to eq(third_dropbox_url_payload)
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+      end
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+
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+    end
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+
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+  end
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+
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+end