Index: components/payments/payment_manifest_downloader.cc |
diff --git a/components/payments/payment_manifest_downloader.cc b/components/payments/payment_manifest_downloader.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ea1b82763f638fb249d133ede89b4404aa612913 |
--- /dev/null |
+++ b/components/payments/payment_manifest_downloader.cc |
@@ -0,0 +1,87 @@ |
+// Copyright 2017 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 "components/payments/payment_manifest_downloader.h" |
+ |
+#include <unordered_map> |
+#include <utility> |
+ |
+#include "base/bind.h" |
+#include "components/data_use_measurement/core/data_use_user_data.h" |
+#include "components/link_header_util/link_header_util.h" |
+#include "net/base/load_flags.h" |
+#include "net/http/http_response_headers.h" |
+#include "net/url_request/url_request_context_getter.h" |
+ |
+namespace payments { |
+ |
+PaymentManifestDownloader::PaymentManifestDownloader( |
+ const scoped_refptr<net::URLRequestContextGetter>& context, |
+ const std::string& method_name, |
+ Delegate* delegate) |
+ : context_(context), |
+ method_name_(method_name), |
+ delegate_(delegate), |
+ is_downloading_http_link_header_(true) {} |
+ |
+PaymentManifestDownloader::~PaymentManifestDownloader() {} |
+ |
+void PaymentManifestDownloader::Download() { |
+ InitiateDownload(method_name_, net::URLFetcher::HEAD); |
+} |
+ |
+void PaymentManifestDownloader::InitiateDownload( |
+ const std::string& url, |
+ net::URLFetcher::RequestType request_type) { |
+ fetcher_ = net::URLFetcher::Create(0 /* id */, GURL(url), request_type, this); |
palmer
2017/01/27 00:11:47
I'd like to see a single point of validation, whic
please use gerrit instead
2017/02/23 19:57:50
AndroidPaymentAppFactory.java:115
|
+ data_use_measurement::DataUseUserData::AttachToFetcher( |
+ fetcher_.get(), data_use_measurement::DataUseUserData::PAYMENTS); |
+ fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES | |
+ net::LOAD_DO_NOT_SAVE_COOKIES); |
+ fetcher_->SetRequestContext(context_.get()); |
+ fetcher_->Start(); |
+} |
+ |
+void PaymentManifestDownloader::OnURLFetchComplete( |
+ const net::URLFetcher* source) { |
+ if (source->GetResponseCode() != 200) { |
palmer
2017/01/27 00:11:47
Have 3xx redirects already been followed, at this
please use gerrit instead
2017/02/23 19:57:50
I've prohibited 3xx redirects in the latest patch.
|
+ delegate_->OnManifestDownloadFailure(); |
+ return; |
+ } |
+ |
+ if (is_downloading_http_link_header_) { |
+ is_downloading_http_link_header_ = false; |
+ std::string link_header; |
+ source->GetResponseHeaders()->GetNormalizedHeader("link", &link_header); |
+ if (!link_header.empty()) { |
+ std::string url; |
+ std::unordered_map<std::string, base::Optional<std::string>> params; |
+ for (const auto& value : link_header_util::SplitLinkHeader(link_header)) { |
+ if (!link_header_util::ParseLinkHeaderValue(value.first, value.second, |
+ &url, ¶ms)) { |
+ break; |
+ } |
+ |
+ auto rel = params.find("rel"); |
+ if (rel != params.end() && |
+ rel->second.value_or("") == "payment-method-manifest") { |
+ if (url.find("https://") != 0) |
+ url = method_name_ + "/" + url; |
+ InitiateDownload(url, net::URLFetcher::GET); |
+ return; |
+ } |
+ } |
+ } |
+ } else { |
+ std::string content; |
+ if (source->GetResponseAsString(&content)) { |
+ delegate_->OnManifestDownloadSuccess(content); |
+ return; |
+ } |
+ } |
+ |
+ delegate_->OnManifestDownloadFailure(); |
+} |
+ |
+} // namespace payments |