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PostAgent: allow sending arbitrary string data

When `content_type` contains a MIME type and `payload` is not a Hash the string in `payload` will be send as the HTTP
body and `content_type` is send as the `Content-Type` header.

 #1361

Dominik Sander 8 anni fa
parent
075545191a
commit
eecd67c378
2 ha cambiato i file con 56 aggiunte e 4 eliminazioni
Mostra Diff Stats
  1. 25 4
      app/models/agents/post_agent.rb
  2. 31 0
      spec/models/agents/post_agent_spec.rb

+ 25 - 4
app/models/agents/post_agent.rb
Vedi File 

@@ -2,6 +2,8 @@ module Agents
2 2 
   class PostAgent < Agent
3 3 
     include WebRequestConcern
4 4
5 
+    MIME_RE = /\A\w+\/.+\z/
6 
+
5 7 
     can_dry_run!
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     no_bulk_receive!
7 9 
     default_schedule "never"
 
@@ -13,7 +15,13 @@ module Agents
13 15
14 16 
       The `method` used can be any of `get`, `post`, `put`, `patch`, and `delete`.
15 17
16 
-      By default, non-GETs will be sent with form encoding (`application/x-www-form-urlencoded`).  Change `content_type` to `json` to send JSON instead.  Change `content_type` to `xml` to send XML, where the name of the root element may be specified using `xml_root`, defaulting to `post`.
18 
+      By default, non-GETs will be sent with form encoding (`application/x-www-form-urlencoded`).
19 
+
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+      Change `content_type` to `json` to send JSON instead.
21 
+
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+      Change `content_type` to `xml` to send XML, where the name of the root element may be specified using `xml_root`, defaulting to `post`.
23 
+
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+      When `content_type` contains a [MIME](https://en.wikipedia.org/wiki/Media_type) type, and `payload` is a string, its interpolated value will be sent as a string in the HTTP request's body and the request's `Content-Type` HTTP header will be set to `content_type`. When `payload` is a string `no_merge` has to be set to `true`.
17 25
18 26 
       If `emit_events` is set to `true`, the server response will be emitted as an Event and can be fed to a WebsiteAgent for parsing (using its `data_from_event` and `type` options). No data processing
19 27 
       will be attempted by this Agent, so the Event's "body" value will always be raw text.
 
@@ -49,7 +57,8 @@ module Agents
49 57 
           'something' => 'the event contained {{ somekey }}'
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         },
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         'headers' => {},
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-        'emit_events' => 'false'
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+        'emit_events' => 'false',
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+        'no_merge' => 'false'
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       }
54 63 
     end
55 64 
 
@@ -66,10 +75,19 @@ module Agents
66 75 
         errors.add(:base, "post_url and expected_receive_period_in_days are required fields")
67 76 
       end
68 77
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-      if options['payload'].present? && !options['payload'].is_a?(Hash)
78 
+      if options['payload'].present? && %w[get delete].include?(method) && !options['payload'].is_a?(Hash)
70 79 
         errors.add(:base, "if provided, payload must be a hash")
71 80 
       end
72 81
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+      if options['payload'].present? && %w[post put patch].include?(method)
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+        if !options['payload'].is_a?(Hash) && options['content_type'] !~ MIME_RE
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+          errors.add(:base, "if provided, payload must be a hash")
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+        end
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+        if options['content_type'] =~ MIME_RE && options['payload'].is_a?(String) && boolify(options['no_merge']) != true
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+          errors.add(:base, "when the payload is a string, `no_merge` has to be set to `true`")
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+        end
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+      end
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+
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       if options.has_key?('emit_events') && boolify(options['emit_events']).nil?
74 92 
         errors.add(:base, "if provided, emit_events must be true or false")
75 93 
       end
 
@@ -116,13 +134,16 @@ module Agents
116 134 
       when 'post', 'put', 'patch'
117 135 
         params = nil
118 136
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-        case interpolated(payload)['content_type']
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+        case (content_type = interpolated(payload)['content_type'])
120 138 
         when 'json'
121 139 
           headers['Content-Type'] = 'application/json; charset=utf-8'
122 140 
           body = data.to_json
123 141 
         when 'xml'
124 142 
           headers['Content-Type'] = 'text/xml; charset=utf-8'
125 143 
           body = data.to_xml(root: (interpolated(payload)[:xml_root] || 'post'))
144 
+        when MIME_RE
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+          headers['Content-Type'] = content_type
146 
+          body = data.to_s
126 147 
         else
127 148 
           body = data
128 149 
         end

+ 31 - 0
spec/models/agents/post_agent_spec.rb
Vedi File 

@@ -46,6 +46,8 @@ describe Agents::PostAgent do
46 46 
           req.data = ActiveSupport::JSON.decode(request.body)
47 47 
         when 'text/xml'
48 48 
           req.data = Hash.from_xml(request.body)
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+        when Agents::PostAgent::MIME_RE
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+          req.data = request.body
49 51 
         else
50 52 
           raise "unexpected Content-Type: #{content_type}"
51 53 
         end
 
@@ -187,6 +189,16 @@ describe Agents::PostAgent do
187 189 
       expect(@sent_requests[:get][0].data).to eq(@checker.options['payload'].to_query)
188 190 
     end
189 191
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+    it "sends options['payload'] as a string POST request when content-type continas a MIME type" do
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+      @checker.options['payload'] = '<test>hello</test>'
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+      @checker.options['content_type'] = 'application/xml'
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+      expect {
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+        @checker.check
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+      }.to change { @sent_requests[:post].length }.by(1)
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+
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+      expect(@sent_requests[:post][0].data).to eq('<test>hello</test>')
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+    end
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+
190 202 
     describe "emitting events" do
191 203 
       context "when emit_events is not set to true" do
192 204 
         it "does not emit events" do
 
@@ -304,6 +316,25 @@ describe Agents::PostAgent do
304 316 
       expect(@checker).to be_valid
305 317 
     end
306 318
319 
+    it "should not validate payload as a hash if content_type includes a MIME type and method is not get or delete" do
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+      @checker.options['no_merge'] = 'true'
321 
+      @checker.options['content_type'] = 'text/xml'
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+      @checker.options['payload'] = "test"
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+      expect(@checker).to be_valid
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+
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+      @checker.options['method'] = 'get'
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+      expect(@checker).not_to be_valid
327 
+
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+      @checker.options['method'] = 'delete'
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+      expect(@checker).not_to be_valid
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+    end
331 
+
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+    it "requires `no_merge` to be set to true when content_type contains a MIME type" do
333 
+      @checker.options['content_type'] = 'text/xml'
334 
+      @checker.options['payload'] = "test"
335 
+      expect(@checker).not_to be_valid
336 
+    end
337 
+
307 338 
     it "requires headers to be a hash, if present" do
308 339 
       @checker.options['headers'] = [1,2,3]
309 340 
       expect(@checker).not_to be_valid