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ImapAgent: Replace invalid bytes in a subject or body.

This should fix #733.

Akinori MUSHA vor 10 Jahren
Ursprung
0ff1c95ab7
Commit
5211378131
2 geänderte Dateien mit 51 neuen Zeilen und 8 gelöschten Zeilen
Diff-Statistik anzeigen
  1. 21 7
      app/models/agents/imap_folder_agent.rb
  2. 30 1
      spec/models/agents/imap_folder_agent_spec.rb

+ 21 - 7
app/models/agents/imap_folder_agent.rb
Datei anzeigen 

@@ -240,7 +240,7 @@ module Agents
240 240 
           when 'subject'
241 241 
             value.present? or next true
242 242 
             re = Regexp.new(value)
243 
-            if m = re.match(mail.subject)
243 
+            if m = re.match(mail.scrubbed(:subject))
244 244 
               m.names.each { |name|
245 245 
                 matches[name] = m[name]
246 246 
               }
 
@@ -252,7 +252,7 @@ module Agents
252 252 
             value.present? or next true
253 253 
             re = Regexp.new(value)
254 254 
             matched_part = body_parts.find { |part|
255 
-               if m = re.match(part.decoded)
255 
+               if m = re.match(part.scrubbed(:decoded))
256 256 
                  m.names.each { |name|
257 257 
                    matches[name] = m[name]
258 258 
                  }
 
@@ -285,7 +285,7 @@ module Agents
285 285
286 286 
           if matched_part
287 287 
             mime_type = matched_part.mime_type
288 
-            body = matched_part.decoded
288 
+            body = matched_part.scrubbed(:decoded)
289 289 
           else
290 290 
             mime_type = 'text/plain'
291 291 
             body = ''
 
@@ -295,7 +295,7 @@ module Agents
295 295
296 296 
           create_event :payload => {
297 297 
             'folder' => mail.folder,
298 
-            'subject' => mail.subject,
298 
+            'subject' => mail.scrubbed(:subject),
299 299 
             'from' => mail.from_addrs.first,
300 300 
             'to' => mail.to_addrs,
301 301 
             'cc' => mail.cc_addrs,
 
@@ -504,6 +504,15 @@ module Agents
504 504
505 505 
       attr_reader :uid, :folder, :uidvalidity
506 506
507 
+      module Scrubbed
508 
+        def scrubbed(method)
509 
+          (@scrubbed ||= {})[method.to_sym] ||=
510 
+            __send__(method).scrub { |bytes| "<#{bytes.unpack('H*')[0]}>" }
511 
+        end
512 
+      end
513 
+
514 
+      include Scrubbed
515 
+
507 516 
       def initialize(client, fetch_data, props = {})
508 517 
         @client = client
509 518 
         props.each { |key, value|
 
@@ -538,9 +547,14 @@ module Agents
538 547 
           mail.all_parts
539 548 
         else
540 549 
           [mail]
541 
-        end.reject { |part|
542 
-          part.multipart? || part.attachment? || !part.text? ||
543 
-            !mime_types.include?(part.mime_type)
550 
+        end.select { |part|
551 
+          if part.multipart? || part.attachment? || !part.text? ||
552 
+             !mime_types.include?(part.mime_type)
553 
+            false
554 
+          else
555 
+            part.extend(Scrubbed)
556 
+            true
557 
+          end
544 558 
         }
545 559 
       end
546 560

+ 30 - 1
spec/models/agents/imap_folder_agent_spec.rb
Datei anzeigen 

@@ -36,8 +36,12 @@ describe Agents::ImapFolderAgent do
36 36 
             all_parts.find { |part|
37 37 
               part.mime_type == type
38 38 
             }
39 
-          }.compact
39 
+          }.compact.map! { |part|
40 
+            part.extend(Agents::ImapFolderAgent::Message::Scrubbed)
41 
+          }
40 42 
         end
43 
+
44 
+        include Agents::ImapFolderAgent::Message::Scrubbed
41 45 
       }
42 46
43 47 
       @mails = [
 
@@ -255,4 +259,29 @@ describe Agents::ImapFolderAgent do
255 259 
       end
256 260 
     end
257 261 
   end
262 
+
263 
+  describe 'Agents::ImapFolderAgent::Message::Scrubbed' do
264 
+    before do
265 
+      @class = Class.new do
266 
+        def subject
267 
+          "broken\xB7subject\xB6"
268 
+        end
269 
+
270 
+        def body
271 
+          "broken\xB7body\xB6"
272 
+        end
273 
+
274 
+        include Agents::ImapFolderAgent::Message::Scrubbed
275 
+      end
276 
+
277 
+      @object = @class.new
278 
+    end
279 
+
280 
+    describe '#scrubbed' do
281 
+      it 'should return a scrubbed string' do
282 
+        expect(@object.scrubbed(:subject)).to eq("broken<b7>subject<b6>")
283 
+        expect(@object.scrubbed(:body)).to eq("broken<b7>body<b6>")
284 
+      end
285 
+    end
286 
+  end
258 287 
 end