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// 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/macros.h"
#include "base/metrics/histogram.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 kSubtypeKey[] = "X-subtype";
const char kScopeKey[] = "scope";
const char kExtraScopeKey[] = "X-scope";
// Response constants.
const char kTokenPrefix[] = "token=";
const char kErrorPrefix[] = "Error=";
const char kInvalidParameters[] = "INVALID_PARAMETERS";
} // 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());
DCHECK(!authorized_entity.empty());
DCHECK(!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(kExtraScopeKey, scope_, body);
BuildFormEncoding(kGMSVersionKey, base::IntToString(gcm_version_), body);
// TODO(jianli): To work around server bug. To be removed when the server fix
// is deployed.
BuildFormEncoding(kSubtypeKey, authorized_entity_, 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(kErrorPrefix) != std::string::npos) {
std::string error = response.substr(
response.find(kErrorPrefix) + arraysize(kErrorPrefix) - 1);
return error == kInvalidParameters ?
UnregistrationRequest::INVALID_PARAMETERS :
UnregistrationRequest::UNKNOWN_ERROR;
}
if (response.find(kTokenPrefix) == std::string::npos)
return UnregistrationRequest::RESPONSE_PARSING_FAILED;
return UnregistrationRequest::SUCCESS;
}
void InstanceIDDeleteTokenRequestHandler::ReportUMAs(
UnregistrationRequest::Status status,
int retry_count,
base::TimeDelta complete_time) {
UMA_HISTOGRAM_ENUMERATION("InstanceID.DeleteToken.RequestStatus",
status,
UnregistrationRequest::UNREGISTRATION_STATUS_COUNT);
// Other UMAs are only reported when the request succeeds.
if (status != UnregistrationRequest::SUCCESS)
return;
UMA_HISTOGRAM_COUNTS("InstanceID.DeleteToken.RetryCount", retry_count);
UMA_HISTOGRAM_TIMES("InstanceID.DeleteToken.CompleteTime", complete_time);
}
} // namespace gcm
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