Index: headless/public/util/url_fetcher.h |
diff --git a/headless/public/util/url_fetcher.h b/headless/public/util/url_fetcher.h |
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+// Copyright 2016 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 HEADLESS_PUBLIC_UTIL_URL_FETCHER_H_ |
+#define HEADLESS_PUBLIC_UTIL_URL_FETCHER_H_ |
+ |
+#include <stddef.h> |
+#include <string> |
+#include <vector> |
+ |
+#include "base/macros.h" |
+#include "base/memory/ref_counted.h" |
+#include "net/base/net_errors.h" |
+#include "url/gurl.h" |
+ |
+namespace net { |
+class HttpRequestHeaders; |
+class HttpResponseHeaders; |
+} // namespace net |
+ |
+namespace headless { |
+ |
+// An interface for fetching URLs. Note these are only intended to be used once. |
+// TODO(alexclarke): Implement a URLFetcher that can backend onto a URLRequest |
+// and hook this up in headless_shell under a flag. |
+class URLFetcher { |
+ public: |
+ URLFetcher() {} |
+ virtual ~URLFetcher() {} |
+ |
+ // Interface for reporting the fetch result. |
+ class ResultListener { |
+ public: |
+ ResultListener() {} |
+ |
+ // Informs the listener that the fetch failed. |
+ virtual void OnStartError(net::Error error) = 0; |
+ |
+ // Informs the listener that the fetch succeeded and returns the HTTP |
+ // headers and the body. NOTE |body| must be owned by the caller and remain |
+ // valid until the fetcher is destroyed, |
+ virtual void OnFetchComplete( |
+ const GURL& final_url, |
+ int http_response_code, |
+ scoped_refptr<net::HttpResponseHeaders> response_headers, |
+ const char* body, |
+ size_t body_size) = 0; |
+ |
+ // Helper function which extracts the headers from |response_data| and calls |
+ // OnFetchComplete. |
+ void OnFetchCompleteExtractHeaders(const GURL& final_url, |
+ int http_response_code, |
+ const char* response_data, |
+ size_t response_data_size); |
+ |
+ protected: |
+ virtual ~ResultListener() {} |
+ |
+ private: |
+ DISALLOW_COPY_AND_ASSIGN(ResultListener); |
+ }; |
+ |
+ // Instructs the sub-class to fetch the resource. |
+ virtual void StartFetch(const GURL& rewritten_url, |
+ const net::HttpRequestHeaders& request_headers, |
+ ResultListener* result_listener) = 0; |
+ |
+ private: |
+ DISALLOW_COPY_AND_ASSIGN(URLFetcher); |
+}; |
+ |
+} // namespace headless |
+ |
+#endif // HEADLESS_PUBLIC_UTIL_URL_FETCHER_H_ |