Delete a bunch of packages that are now on GitHub.

pkg/oauth2/lib/src/handle_access_token_response.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 handle_access_token_response;
-
-import 'dart:convert';
-
-import 'package:http/http.dart' as http;
-import 'package:http_parser/http_parser.dart';
-
-import 'credentials.dart';
-import 'authorization_exception.dart';
-
-/// The amount of time, in seconds, to add as a "grace period" for credential
-/// expiration. This allows credential expiration checks to remain valid for a
-/// reasonable amount of time.
-const _EXPIRATION_GRACE = 10;
-
-/// Handles a response from the authorization server that contains an access
-/// token. This response format is common across several different components of
-/// the OAuth2 flow.
-Credentials handleAccessTokenResponse(
-    http.Response response,
-    Uri tokenEndpoint,
-    DateTime startTime,
-    List<String> scopes) {
-  if (response.statusCode != 200) _handleErrorResponse(response, tokenEndpoint);
-
-  void validate(bool condition, String message) =>
-    _validate(response, tokenEndpoint, condition, message);
-
-  var contentType = response.headers['content-type'];
-  if (contentType != null) contentType = new MediaType.parse(contentType);
-
-  // The spec requires a content-type of application/json, but some endpoints
-  // (e.g. Dropbox) serve it as text/javascript instead.
-  validate(contentType != null &&
-      (contentType.mimeType == "application/json" ||
-       contentType.mimeType == "text/javascript"),
-      'content-type was "$contentType", expected "application/json"');
-
-  var parameters;
-  try {
-    parameters = JSON.decode(response.body);
-  } on FormatException catch (e) {
-    validate(false, 'invalid JSON');
-  }
-
-  for (var requiredParameter in ['access_token', 'token_type']) {
-    validate(parameters.containsKey(requiredParameter),
-        'did not contain required parameter "$requiredParameter"');
-    validate(parameters[requiredParameter] is String,
-        'required parameter "$requiredParameter" was not a string, was '
-        '"${parameters[requiredParameter]}"');
-  }
-
-  // TODO(nweiz): support the "mac" token type
-  // (http://tools.ietf.org/html/draft-ietf-oauth-v2-http-mac-01)
-  validate(parameters['token_type'].toLowerCase() == 'bearer',
-      '"$tokenEndpoint": unknown token type "${parameters['token_type']}"');
-
-  var expiresIn = parameters['expires_in'];
-  validate(expiresIn == null || expiresIn is int,
-      'parameter "expires_in" was not an int, was "$expiresIn"');
-
-  for (var name in ['refresh_token', 'scope']) {
-    var value = parameters[name];
-    validate(value == null || value is String,
-        'parameter "$name" was not a string, was "$value"');
-  }
-
-  var scope = parameters['scope'];
-  if (scope != null) scopes = scope.split(" ");
-
-  var expiration = expiresIn == null ? null :
-      startTime.add(new Duration(seconds: expiresIn - _EXPIRATION_GRACE));
-
-  return new Credentials(
-      parameters['access_token'],
-      parameters['refresh_token'],
-      tokenEndpoint,
-      scopes,
-      expiration);
-}
-
-/// Throws the appropriate exception for an error response from the
-/// authorization server.
-void _handleErrorResponse(http.Response response, Uri tokenEndpoint) {
-  void validate(bool condition, String message) =>
-    _validate(response, tokenEndpoint, condition, message);
-
-  // OAuth2 mandates a 400 or 401 response code for access token error
-  // responses. If it's not a 400 reponse, the server is either broken or
-  // off-spec.
-  if (response.statusCode != 400 && response.statusCode != 401) {
-    var reason = '';
-    if (response.reasonPhrase != null && !response.reasonPhrase.isEmpty) {
-      ' ${response.reasonPhrase}';
-    }
-    throw new FormatException('OAuth request for "$tokenEndpoint" failed '
-        'with status ${response.statusCode}$reason.\n\n${response.body}');
-  }
-
-  var contentType = response.headers['content-type'];
-  if (contentType != null) contentType = new MediaType.parse(contentType);
-  validate(contentType != null && contentType.mimeType == "application/json",
-      'content-type was "$contentType", expected "application/json"');
-
-  var parameters;
-  try {
-    parameters = JSON.decode(response.body);
-  } on FormatException catch (e) {
-    validate(false, 'invalid JSON');
-  }
-
-  validate(parameters.containsKey('error'),
-      'did not contain required parameter "error"');
-  validate(parameters["error"] is String,
-      'required parameter "error" was not a string, was '
-      '"${parameters["error"]}"');
-
-  for (var name in ['error_description', 'error_uri']) {
-    var value = parameters[name];
-    validate(value == null || value is String,
-        'parameter "$name" was not a string, was "$value"');
-  }
-
-  var description = parameters['error_description'];
-  var uriString = parameters['error_uri'];
-  var uri = uriString == null ? null : Uri.parse(uriString);
-  throw new AuthorizationException(parameters['error'], description, uri);
-}
-
-void _validate(
-    http.Response response,
-    Uri tokenEndpoint,
-    bool condition,
-    String message) {
-  if (condition) return;
-  throw new FormatException('Invalid OAuth response for "$tokenEndpoint": '
-      '$message.\n\n${response.body}');
-}