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allow DataOutputAgent to build complex XML

Andrew Cantino 10 years ago
parent
8dc5387f0b
commit
136aaea04b
4 changed files with 221 additions and 9 deletions
Show Diff Stats
  1. 84 6
      app/models/agents/data_output_agent.rb
  2. 3 1
      app/models/agents/wunderlist_agent.rb
  3. 132 1
      spec/models/agents/data_output_agent_spec.rb
  4. 2 1
      spec/models/agents/wunderlist_agent_spec.rb

+ 84 - 6
app/models/agents/data_output_agent.rb
View File 

@@ -22,6 +22,21 @@ module Agents
22 22 
           * `template` - A JSON object representing a mapping between item output keys and incoming event values. Use [Liquid](https://github.com/cantino/huginn/wiki/Formatting-Events-using-Liquid) to format the values. The `item` key will be repeated for every Event. The `pubDate` key for each item will have the creation time of the Event unless given.
23 23 
           * `events_to_show` - The number of events to output in RSS or JSON. (default: `40`)
24 24 
           * `ttl` - A value for the <ttl> element in RSS output. (default: `60`)
25 
+
26 
+        If you'd like to output RSS tags with attributes, such as `enclosure`, use something like the following in your `template`:
27 
+
28 
+            "enclosure" => {
29 
+              "_attributes" => {
30 
+                "type" => "audio/mpeg",
31 
+                "url" => "{{media_url}}"
32 
+              }
33 
+            },
34 
+            "tag" => {
35 
+              "_attributes" => {
36 
+                "key" => "value"
37 
+              },
38 
+              "_contents" => "tag contents (can be an object for nesting)"
39 
+            }
25 40 
       MD
26 41 
     end
27 42 
 
@@ -35,15 +50,12 @@ module Agents
35 50 
           "item" => {
36 51 
             "title" => "{{title}}",
37 52 
             "description" => "Secret hovertext: {{hovertext}}",
38 
-            "link" => "{{url}}",
53 
+            "link" => "{{url}}"
39 54 
           }
40 55 
         }
41 56 
       }
42 57 
     end
43 58
44 
-    #"guid" => "",
45 
-    #  "pubDate" => ""
46 
-
47 59 
     def working?
48 60 
       last_receive_at && last_receive_at > options['expected_receive_period_in_days'].to_i.days.ago && !recent_error_logs?
49 61 
     end
 
@@ -104,7 +116,7 @@ module Agents
104 116 
             'title' => feed_title,
105 117 
             'description' => feed_description,
106 118 
             'pubDate' => Time.now,
107 
-            'items' => items
119 
+            'items' => simplify_item_for_json(items)
108 120 
           }
109 121
110 122 
           return [content, 200]
 
@@ -122,7 +134,7 @@ module Agents
122 134
123 135 
           XML
124 136
125 
-          content += items.to_xml(:skip_types => true, :root => "items", :skip_instruct => true, :indent => 1).gsub(/^<\/?items>/, '').strip
137 
+          content += simplify_item_for_xml(items).to_xml(skip_types: true, root: "items", skip_instruct: true, indent: 1).gsub(/^<\/?items>/, '').strip
126 138
127 139 
           content += Utils.unindent(<<-XML)
128 140 
             </channel>
 
@@ -139,5 +151,71 @@ module Agents
139 151 
         end
140 152 
       end
141 153 
     end
154 
+
155 
+    private
156 
+
157 
+    class XMLNode
158 
+      def initialize(tag_name, attributes, contents)
159 
+        @tag_name, @attributes, @contents = tag_name, attributes, contents
160 
+      end
161 
+
162 
+      def to_xml(options)
163 
+        if @contents.is_a?(Hash)
164 
+          options[:builder].tag! @tag_name, @attributes do
165 
+            @contents.each { |key, value| ActiveSupport::XmlMini.to_tag(key, value, options.merge(skip_instruct: true)) }
166 
+          end
167 
+        else
168 
+          options[:builder].tag! @tag_name, @attributes, @contents
169 
+        end
170 
+      end
171 
+    end
172 
+
173 
+    def simplify_item_for_xml(item)
174 
+      if item.is_a?(Hash)
175 
+        item.each.with_object({}) do |(key, value), memo|
176 
+          if value.is_a?(Hash)
177 
+            if value.key?('_attributes') || value.key?('_contents')
178 
+              memo[key] = XMLNode.new(key, value['_attributes'], simplify_item_for_xml(value['_contents']))
179 
+            else
180 
+              memo[key] = simplify_item_for_xml(value)
181 
+            end
182 
+          else
183 
+            memo[key] = value
184 
+          end
185 
+        end
186 
+      elsif item.is_a?(Array)
187 
+        item.map { |value| simplify_item_for_xml(value) }
188 
+      else
189 
+        item
190 
+      end
191 
+    end
192 
+
193 
+    def simplify_item_for_json(item)
194 
+      if item.is_a?(Hash)
195 
+        item.each.with_object({}) do |(key, value), memo|
196 
+          if value.is_a?(Hash)
197 
+            if value.key?('_attributes') || value.key?('_contents')
198 
+              contents = if value['_contents'] && value['_contents'].is_a?(Hash)
199 
+                           simplify_item_for_json(value['_contents'])
200 
+                         elsif value['_contents']
201 
+                           { "contents" => value['_contents'] }
202 
+                         else
203 
+                           {}
204 
+                         end
205 
+
206 
+              memo[key] = contents.merge(value['_attributes'] || {})
207 
+            else
208 
+              memo[key] = simplify_item_for_json(value)
209 
+            end
210 
+          else
211 
+            memo[key] = value
212 
+          end
213 
+        end
214 
+      elsif item.is_a?(Array)
215 
+        item.map { |value| simplify_item_for_json(value) }
216 
+      else
217 
+        item
218 
+      end
219 
+    end
142 220 
   end
143 221 
 end

+ 3 - 1
app/models/agents/wunderlist_agent.rb
View File 

@@ -53,7 +53,9 @@ module Agents
53 53 
         end
54 54 
       end
55 55 
     end
56 
-  private
56 
+
57 
+    private
58 
+
57 59 
     def request_guard(&blk)
58 60 
       response = yield
59 61 
       error("Error during http request: #{response.body}") if response.code > 400

+ 132 - 1
spec/models/agents/data_output_agent_spec.rb
View File 

@@ -83,7 +83,7 @@ describe Agents::DataOutputAgent do
83 83 
       expect(status).to eq(200)
84 84 
     end
85 85
86 
-    describe "returning events as RSS and JSON" do
86 
+    describe "outputtng events as RSS and JSON" do
87 87 
       let!(:event1) do
88 88 
         agents(:bob_website_agent).create_event :payload => {
89 89 
           "url" => "http://imgs.xkcd.com/comics/evolving.png",
 
@@ -194,5 +194,136 @@ describe Agents::DataOutputAgent do
194 194 
         })
195 195 
       end
196 196 
     end
197 
+
198 
+    describe "outputting nesting" do
199 
+      before do
200 
+        agent.options['template']['item']['enclosure'] = {
201 
+          "_attributes" => {
202 
+            "type" => "audio/mpeg",
203 
+            "url" => "{{media_url}}"
204 
+          },
205 
+          "_self_closing" => "true"
206 
+        }
207 
+        agent.options['template']['item']['foo'] = {
208 
+          "_attributes" => {
209 
+            "attr" => "attr-value-{{foo}}"
210 
+          },
211 
+          "_contents" => "Foo: {{foo}}"
212 
+        }
213 
+        agent.options['template']['item']['nested'] = {
214 
+          "_attributes" => {
215 
+            "key" => "value"
216 
+          },
217 
+          "_contents" => {
218 
+            "title" => "some title"
219 
+          }
220 
+        }
221 
+        agent.options['template']['item']['simpleNested'] = {
222 
+          "title" => "some title",
223 
+          "complex" => {
224 
+            "_attributes" => {
225 
+              "key" => "value"
226 
+            },
227 
+            "_contents" => {
228 
+              "first" => {
229 
+                "_attributes" => {
230 
+                  "a" => "b"
231 
+                },
232 
+                "_contents" => {
233 
+                  "second" => "value"
234 
+                }
235 
+              }
236 
+            }
237 
+          }
238 
+        }
239 
+        agent.save!
240 
+      end
241 
+
242 
+      let!(:event) do
243 
+        agents(:bob_website_agent).create_event :payload => {
244 
+          "url" => "http://imgs.xkcd.com/comics/evolving.png",
245 
+          "title" => "Evolving",
246 
+          "hovertext" => "Biologists play reverse Pokemon, trying to avoid putting any one team member on the front lines long enough for the experience to cause evolution.",
247 
+          "media_url" => "http://google.com/audio.mpeg",
248 
+          "foo" => 1
249 
+        }
250 
+      end
251 
+
252 
+      it "can output JSON" do
253 
+        content, status, content_type = agent.receive_web_request({ 'secret' => 'secret2' }, 'get', 'application/json')
254 
+        expect(status).to eq(200)
255 
+        expect(content['items'].first).to eq(
256 
+          {
257 
+            'title' => 'Evolving',
258 
+            'description' => 'Secret hovertext: Biologists play reverse Pokemon, trying to avoid putting any one team member on the front lines long enough for the experience to cause evolution.',
259 
+            'link' => 'http://imgs.xkcd.com/comics/evolving.png',
260 
+            'guid' => event.id,
261 
+            'pubDate' => event.created_at.rfc2822,
262 
+            'enclosure' => {
263 
+              "type" => "audio/mpeg",
264 
+              "url" => "http://google.com/audio.mpeg"
265 
+            },
266 
+            'foo' => {
267 
+              'attr' => 'attr-value-1',
268 
+              'contents' => 'Foo: 1'
269 
+            },
270 
+            'nested' => {
271 
+              "key" => "value",
272 
+              "title" => "some title"
273 
+            },
274 
+            'simpleNested' => {
275 
+              "title" => "some title",
276 
+              "complex" => {
277 
+                "key"=>"value",
278 
+                "first" => {
279 
+                  "a" => "b",
280 
+                  "second"=>"value"
281 
+                }
282 
+              }
283 
+            }
284 
+          }
285 
+        )
286 
+      end
287 
+
288 
+      it "can output RSS" do
289 
+        stub(agent).feed_link { "https://yoursite.com" }
290 
+        content, status, content_type = agent.receive_web_request({ 'secret' => 'secret1' }, 'get', 'text/xml')
291 
+        expect(status).to eq(200)
292 
+        expect(content_type).to eq('text/xml')
293 
+        expect(content.gsub(/\s+/, '')).to eq Utils.unindent(<<-XML).gsub(/\s+/, '')
294 
+          <?xml version="1.0" encoding="UTF-8" ?>
295 
+          <rss version="2.0">
296 
+          <channel>
297 
+           <title>XKCD comics as a feed</title>
298 
+           <description>This is a feed of recent XKCD comics, generated by Huginn</description>
299 
+           <link>https://yoursite.com</link>
300 
+           <lastBuildDate>#{Time.now.rfc2822}</lastBuildDate>
301 
+           <pubDate>#{Time.now.rfc2822}</pubDate>
302 
+           <ttl>60</ttl>
303 
+
304 
+           <item>
305 
+             <title>Evolving</title>
306 
+             <description>Secret hovertext: Biologists play reverse Pokemon, trying to avoid putting any one team member on the front lines long enough for the experience to cause evolution.</description>
307 
+             <link>http://imgs.xkcd.com/comics/evolving.png</link>
308 
+             <pubDate>#{event.created_at.rfc2822}</pubDate>
309 
+             <enclosure type="audio/mpeg" url="http://google.com/audio.mpeg" />
310 
+             <foo attr="attr-value-1">Foo: 1</foo>
311 
+             <nested key="value"><title>some title</title></nested>
312 
+             <simpleNested>
313 
+               <title>some title</title>
314 
+               <complex key="value">
315 
+                 <first a="b">
316 
+                   <second>value</second>
317 
+                 </first>
318 
+               </complex>
319 
+             </simpleNested>
320 
+             <guid>#{event.id}</guid>
321 
+           </item>
322 
+
323 
+          </channel>
324 
+          </rss>
325 
+        XML
326 
+      end
327 
+    end
197 328 
   end
198 329 
 end

+ 2 - 1
spec/models/agents/wunderlist_agent_spec.rb
View File 

@@ -54,8 +54,9 @@ describe Agents::WunderlistAgent do
54 54
55 55 
   describe "#receive" do
56 56 
     it "send a message to the hipchat" do
57 
-      stub_request(:post, 'https://a.wunderlist.com/api/v1/tasks').with { |request| request.body == 'abc'}
57 
+      stub_request(:post, 'https://a.wunderlist.com/api/v1/tasks')
58 58 
       @checker.receive([@event])
59 
+      expect(WebMock).to have_requested(:post, "https://a.wunderlist.com/api/v1/tasks")
59 60 
     end
60 61 
   end
61 62