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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef NET_PROXY_PROXY_RESOLVER_H_ | 5 #ifndef NET_PROXY_PROXY_RESOLVER_H_ |
| 6 #define NET_PROXY_PROXY_RESOLVER_H_ | 6 #define NET_PROXY_PROXY_RESOLVER_H_ |
| 7 | 7 |
| 8 #include "base/callback_forward.h" | 8 #include "base/callback_forward.h" |
| 9 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 #include "base/macros.h" | 10 #include "base/macros.h" |
| 11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
| 12 #include "base/strings/string16.h" | 12 #include "base/strings/string16.h" |
| 13 #include "net/base/completion_callback.h" | 13 #include "net/base/completion_callback.h" |
| 14 #include "net/base/load_states.h" | 14 #include "net/base/load_states.h" |
| 15 #include "net/base/net_export.h" | 15 #include "net/base/net_export.h" |
| 16 #include "net/proxy/proxy_resolver_script_data.h" | 16 #include "net/proxy/proxy_resolver_script_data.h" |
| 17 #include "url/gurl.h" | 17 #include "url/gurl.h" |
| 18 | 18 |
| 19 namespace net { | 19 namespace net { |
| 20 | 20 |
| 21 class BoundNetLog; | 21 class NetLogWithSource; |
| 22 class ProxyInfo; | 22 class ProxyInfo; |
| 23 | 23 |
| 24 // Interface for "proxy resolvers". A ProxyResolver fills in a list of proxies | 24 // Interface for "proxy resolvers". A ProxyResolver fills in a list of proxies |
| 25 // to use for a particular URL. Generally the backend for a ProxyResolver is | 25 // to use for a particular URL. Generally the backend for a ProxyResolver is |
| 26 // a PAC script, but it doesn't need to be. ProxyResolver can service multiple | 26 // a PAC script, but it doesn't need to be. ProxyResolver can service multiple |
| 27 // requests at a time. | 27 // requests at a time. |
| 28 class NET_EXPORT_PRIVATE ProxyResolver { | 28 class NET_EXPORT_PRIVATE ProxyResolver { |
| 29 public: | 29 public: |
| 30 // Opaque pointer type, to return a handle to cancel outstanding requests. | 30 // Opaque pointer type, to return a handle to cancel outstanding requests. |
| 31 typedef void* RequestHandle; | 31 typedef void* RequestHandle; |
| 32 | 32 |
| 33 ProxyResolver() {} | 33 ProxyResolver() {} |
| 34 | 34 |
| 35 virtual ~ProxyResolver() {} | 35 virtual ~ProxyResolver() {} |
| 36 | 36 |
| 37 // Gets a list of proxy servers to use for |url|. If the request will | 37 // Gets a list of proxy servers to use for |url|. If the request will |
| 38 // complete asynchronously returns ERR_IO_PENDING and notifies the result | 38 // complete asynchronously returns ERR_IO_PENDING and notifies the result |
| 39 // by running |callback|. If the result code is OK then | 39 // by running |callback|. If the result code is OK then |
| 40 // the request was successful and |results| contains the proxy | 40 // the request was successful and |results| contains the proxy |
| 41 // resolution information. In the case of asynchronous completion | 41 // resolution information. In the case of asynchronous completion |
| 42 // |*request| is written to, and can be passed to CancelRequest(). | 42 // |*request| is written to, and can be passed to CancelRequest(). |
| 43 virtual int GetProxyForURL(const GURL& url, | 43 virtual int GetProxyForURL(const GURL& url, |
| 44 ProxyInfo* results, | 44 ProxyInfo* results, |
| 45 const CompletionCallback& callback, | 45 const CompletionCallback& callback, |
| 46 RequestHandle* request, | 46 RequestHandle* request, |
| 47 const BoundNetLog& net_log) = 0; | 47 const NetLogWithSource& net_log) = 0; |
| 48 | 48 |
| 49 // Cancels |request|. | 49 // Cancels |request|. |
| 50 virtual void CancelRequest(RequestHandle request) = 0; | 50 virtual void CancelRequest(RequestHandle request) = 0; |
| 51 | 51 |
| 52 // Gets the LoadState for |request|. | 52 // Gets the LoadState for |request|. |
| 53 virtual LoadState GetLoadState(RequestHandle request) const = 0; | 53 virtual LoadState GetLoadState(RequestHandle request) const = 0; |
| 54 | 54 |
| 55 private: | 55 private: |
| 56 DISALLOW_COPY_AND_ASSIGN(ProxyResolver); | 56 DISALLOW_COPY_AND_ASSIGN(ProxyResolver); |
| 57 }; | 57 }; |
| 58 | 58 |
| 59 } // namespace net | 59 } // namespace net |
| 60 | 60 |
| 61 #endif // NET_PROXY_PROXY_RESOLVER_H_ | 61 #endif // NET_PROXY_PROXY_RESOLVER_H_ |
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