Add a pub command for managing uploaders for packages.

utils/tests/pub/oauth2_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library oauth2_test;
 
 import 'dart:io';
 import 'dart:json';
 import 'dart:uri';
 
@@ skipping 131 matching lines @@
 
       response.outputStream.close();
     });
 
     pub.kill();
 
     credentialsFile(server, 'new access token').scheduleValidate();
 
     run();
   });
+
+  test('with server-rejected credentials, authenticates again and saves '
+      'credentials.json', () {
+    var server = new ScheduledServer();
+    credentialsFile(server, 'access token').scheduleCreate();
+    var pub = startPubLish(server);
+
+    confirmPublish(pub);
+
+    server.handle('GET', '/packages/versions/new.json', (request, response) {
+      response.statusCode = 401;
+      response.headers.set('www-authenticate', 'Bearer error="invalid_token",'
+          ' error_description="your token sucks"');
+      response.outputStream.writeString(JSON.stringify({
+        'error': {'message': 'your token sucks'}
+      }));
+      response.outputStream.close();
+    });
+
+    expectLater(pub.nextErrLine(), equals('OAuth2 authorization failed (your '
+        'token sucks).'));

[Bob Nystrom, 2012/12/17 18:41:58]

If we show the error before retrying, I think we should also print out that it's
about to retry automatically.

[nweiz, 2012/12/17 21:18:48]

The user has to re-authorize before retrying, which serves that purpose.

+    // TODO(rnystrom): The confirm line is run together with this one because
+    // in normal usage, the user will have entered a newline on stdin which
+    // gets echoed to the terminal. Do something better here?
+    expectLater(pub.nextLine(), equals(
+        'Looks great! Are you ready to upload your package (y/n)? '
+        'Pub needs your authorization to upload packages on your behalf.'));
+    pub.kill();
+    run();
+  });
 }
 
 void authorizePub(ScheduledProcess pub, ScheduledServer server,
     [String accessToken="access token"]) {
   // TODO(rnystrom): The confirm line is run together with this one because
   // in normal usage, the user will have entered a newline on stdin which
   // gets echoed to the terminal. Do something better here?
   expectLater(pub.nextLine(), equals(
       'Looks great! Are you ready to upload your package (y/n)? '
       'Pub needs your authorization to upload packages on your behalf.'));
@@ skipping 23 matching lines @@
 
       response.headers.contentType = new ContentType("application", "json");
       response.outputStream.writeString(JSON.stringify({
         "access_token": accessToken,
         "token_type": "bearer"
       }));
       response.outputStream.close();
     });
   });
 }