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// 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.
#ifndef CHROME_BROWSER_ANDROID_DIGITAL_ASSET_LINKS_DIGITAL_ASSET_LINKS_HANDLER_H_
#define CHROME_BROWSER_ANDROID_DIGITAL_ASSET_LINKS_DIGITAL_ASSET_LINKS_HANDLER_H_
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_fetcher_delegate.h"
#include "net/url_request/url_request_context_getter.h"
namespace base {
class DictionaryValue;
}
namespace digital_asset_links {
extern const char kDigitalAssetLinksCheckResponseKeyLinked[];
typedef base::Callback<void(std::unique_ptr<base::DictionaryValue>)>
RelationshipCheckResultCallback;
// A handler class for sending REST API requests to DigitalAssetLinks web
// end point. See
// https://developers.google.com/digital-asset-links/v1/getting-started
// for details of usage and APIs. These APIs are used to verify declared
// relationships between different asset types like web domains or Android apps.
// The lifecycle of this handler will be governed by the owner.
class DigitalAssetLinksHandler : public net::URLFetcherDelegate {
public:
explicit DigitalAssetLinksHandler(
const scoped_refptr<net::URLRequestContextGetter>& request_context);
~DigitalAssetLinksHandler() override;
// Checks whether the given "relationship" has been declared by the target
// |web_domain| for the source Android app which is uniquely defined by the
// |package_name| and SHA256 |fingerprint| (a string with 32 hexadecimals
// with : in between) given. Any error in the string params
// here will result in a bad request and a nullptr response to the callback.
//
// Calling this multiple times on the same handler will cancel the previous
// checks.
// See
// https://developers.google.com/digital-asset-links/reference/rest/v1/assetlinks/check
// for details.
bool CheckDigitalAssetLinkRelationship(
RelationshipCheckResultCallback callback,
const std::string& web_domain,
const std::string& package_name,
const std::string& fingerprint,
const std::string& relationship);
private:
// net::URLFetcherDelegate:
void OnURLFetchComplete(const net::URLFetcher* source) override;
// Callbacks for the SafeJsonParser.
void OnJSONParseSucceeded(std::unique_ptr<base::Value> result);
void OnJSONParseFailed(const std::string& error_message);
scoped_refptr<net::URLRequestContextGetter> request_context_;
std::unique_ptr<net::URLFetcher> url_fetcher_;
// The per request callback for receiving a URLFetcher result. This gets
// reset every time we get a new CheckDigitalAssetLinkRelationship call.
RelationshipCheckResultCallback callback_;
base::WeakPtrFactory<DigitalAssetLinksHandler> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(DigitalAssetLinksHandler);
};
} // namespace digital_asset_links
#endif // CHROME_BROWSER_ANDROID_DIGITAL_ASSET_LINKS_DIGITAL_ASSET_LINKS_HANDLER_H_