Support getting and deleting token for Instance ID.

google_apis/gcm/engine/instance_id_delete_token_request_handler.cc

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "google_apis/gcm/engine/instance_id_delete_token_request_handler.h"
+
+#include "base/strings/string_number_conversions.h"
+#include "google_apis/gcm/base/gcm_util.h"
+#include "net/url_request/url_fetcher.h"
+#include "net/url_request/url_request_context_getter.h"
+
+namespace gcm {
+
+namespace {
+
+// Request constants.
+const char kGMSVersionKey[] = "gmsv";
+const char kInstanceIDKey[] = "appid";
+const char kSenderKey[] = "sender";
+const char kScopeKey[] = "scope";
+
+// Response constants.

[Nicolas Zea, 2015/05/26 16:39:14]

nit: Combine with previous group? (considering the comment is the same)

[jianli, 2015/05/26 20:49:38]

The comment is indeed not the same, one for request while the other is for
response.

+const char kTokenPrefix[] = "token=";
+
+}  // namespace
+
+InstanceIDDeleteTokenRequestHandler::InstanceIDDeleteTokenRequestHandler(
+    const std::string& instance_id,
+    const std::string& authorized_entity,
+    const std::string& scope,
+    int gcm_version)
+    : instance_id_(instance_id),
+      authorized_entity_(authorized_entity),
+      scope_(scope),
+      gcm_version_(gcm_version) {
+  DCHECK(!instance_id.empty() && !authorized_entity.empty() && !scope.empty());
+}
+
+InstanceIDDeleteTokenRequestHandler::~InstanceIDDeleteTokenRequestHandler() {}
+
+void InstanceIDDeleteTokenRequestHandler::BuildRequestBody(std::string* body){
+  BuildFormEncoding(kInstanceIDKey, instance_id_, body);
+  BuildFormEncoding(kSenderKey, authorized_entity_, body);
+  BuildFormEncoding(kScopeKey, scope_, body);
+  BuildFormEncoding(kGMSVersionKey, base::IntToString(gcm_version_), body);
+}
+
+UnregistrationRequest::Status
+InstanceIDDeleteTokenRequestHandler::ParseResponse(
+    const net::URLFetcher* source) {
+  std::string response;
+  if (!source->GetResponseAsString(&response)) {
+    DVLOG(1) << "Failed to get response body.";
+    return UnregistrationRequest::NO_RESPONSE_BODY;
+  }
+
+  if (response.find(kTokenPrefix) == std::string::npos)
+    return UnregistrationRequest::RESPONSE_PARSING_FAILED;
+
+  return UnregistrationRequest::SUCCESS;
+}
+
+}  // namespace gcm