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Unified Diff: net/proxy/dhcp_proxy_script_adapter_fetcher_win.h

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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Index: net/proxy/dhcp_proxy_script_adapter_fetcher_win.h
diff --git a/net/proxy/dhcp_proxy_script_adapter_fetcher_win.h b/net/proxy/dhcp_proxy_script_adapter_fetcher_win.h
deleted file mode 100644
index c89192c74ea5887e5244a58ed108c7aae2dfad81..0000000000000000000000000000000000000000
--- a/net/proxy/dhcp_proxy_script_adapter_fetcher_win.h
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright (c) 2012 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 NET_PROXY_DHCP_PROXY_SCRIPT_ADAPTER_FETCHER_WIN_H_
-#define NET_PROXY_DHCP_PROXY_SCRIPT_ADAPTER_FETCHER_WIN_H_
-
-#include <string>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/strings/string16.h"
-#include "base/threading/non_thread_safe.h"
-#include "base/timer/timer.h"
-#include "net/base/completion_callback.h"
-#include "net/base/net_export.h"
-#include "url/gurl.h"
-
-namespace base {
-class TaskRunner;
-}
-
-namespace net {
-
-class ProxyScriptFetcher;
-class URLRequestContext;
-
-// For a given adapter, this class takes care of first doing a DHCP lookup
-// to get the PAC URL, then if there is one, trying to fetch it.
-class NET_EXPORT_PRIVATE DhcpProxyScriptAdapterFetcher
- : public base::SupportsWeakPtr<DhcpProxyScriptAdapterFetcher>,
- NON_EXPORTED_BASE(public base::NonThreadSafe) {
- public:
- // |url_request_context| must outlive DhcpProxyScriptAdapterFetcher.
- // |task_runner| will be used to post tasks to a thread.
- DhcpProxyScriptAdapterFetcher(URLRequestContext* url_request_context,
- scoped_refptr<base::TaskRunner> task_runner);
- virtual ~DhcpProxyScriptAdapterFetcher();
-
- // Starts a fetch. On completion (but not cancellation), |callback|
- // will be invoked with the network error indicating success or failure
- // of fetching a DHCP-configured PAC file on this adapter.
- //
- // On completion, results can be obtained via |GetPacScript()|, |GetPacURL()|.
- //
- // You may only call Fetch() once on a given instance of
- // DhcpProxyScriptAdapterFetcher.
- virtual void Fetch(const std::string& adapter_name,
- const net::CompletionCallback& callback);
-
- // Cancels the fetch on this adapter.
- virtual void Cancel();
-
- // Returns true if in the FINISH state (not CANCEL).
- virtual bool DidFinish() const;
-
- // Returns the network error indicating the result of the fetch. Will
- // return IO_PENDING until the fetch is complete or cancelled. This is
- // the same network error passed to the |callback| provided to |Fetch()|.
- virtual int GetResult() const;
-
- // Returns the contents of the PAC file retrieved. Only valid if
- // |IsComplete()| is true. Returns the empty string if |GetResult()|
- // returns anything other than OK.
- virtual base::string16 GetPacScript() const;
-
- // Returns the PAC URL retrieved from DHCP. Only guaranteed to be
- // valid if |IsComplete()| is true. Returns an empty URL if no URL was
- // configured in DHCP. May return a valid URL even if |result()| does
- // not return OK (this would indicate that we found a URL configured in
- // DHCP but failed to download it).
- virtual GURL GetPacURL() const;
-
- // Returns the PAC URL configured in DHCP for the given |adapter_name|, or
- // the empty string if none is configured.
- //
- // This function executes synchronously due to limitations of the Windows
- // DHCP client API.
- static std::string GetPacURLFromDhcp(const std::string& adapter_name);
-
- // Sanitizes a string returned via the DHCP API.
- static std::string SanitizeDhcpApiString(const char* data,
- size_t count_bytes);
-
- protected:
- // This is the state machine for fetching from a given adapter.
- //
- // The state machine goes from START->WAIT_DHCP when it starts
- // a worker thread to fetch the PAC URL from DHCP.
- //
- // In state WAIT_DHCP, if the DHCP query finishes and has no URL, it
- // moves to state FINISH. If there is a URL, it starts a
- // ProxyScriptFetcher to fetch it and moves to state WAIT_URL.
- //
- // It goes from WAIT_URL->FINISH when the ProxyScriptFetcher completes.
- //
- // In state FINISH, completion is indicated to the outer class, with
- // the results of the fetch if a PAC script was successfully fetched.
- //
- // In state WAIT_DHCP, our timeout occurring can push us to FINISH.
- //
- // In any state except FINISH, a call to Cancel() will move to state
- // CANCEL and cause all outstanding work to be cancelled or its
- // results ignored when available.
- enum State {
- STATE_START,
- STATE_WAIT_DHCP,
- STATE_WAIT_URL,
- STATE_FINISH,
- STATE_CANCEL,
- };
-
- State state() const;
-
- // This inner class encapsulates work done on a worker pool thread.
- // By using a separate object, we can keep the main object completely
- // thread safe and let it be non-refcounted.
- class NET_EXPORT_PRIVATE DhcpQuery
- : public base::RefCountedThreadSafe<DhcpQuery> {
- public:
- DhcpQuery();
- virtual ~DhcpQuery();
-
- // This method should run on a worker pool thread, via PostTaskAndReply.
- // After it has run, the |url()| method on this object will return the
- // URL retrieved.
- void GetPacURLForAdapter(const std::string& adapter_name);
-
- // Returns the URL retrieved for the given adapter, once the task has run.
- const std::string& url() const;
-
- protected:
- // Virtual method introduced to allow unit testing.
- virtual std::string ImplGetPacURLFromDhcp(const std::string& adapter_name);
-
- private:
- // The URL retrieved for the given adapter.
- std::string url_;
-
- DISALLOW_COPY_AND_ASSIGN(DhcpQuery);
- };
-
- // Virtual methods introduced to allow unit testing.
- virtual ProxyScriptFetcher* ImplCreateScriptFetcher();
- virtual DhcpQuery* ImplCreateDhcpQuery();
- virtual base::TimeDelta ImplGetTimeout() const;
-
- private:
- // Event/state transition handlers
- void OnDhcpQueryDone(scoped_refptr<DhcpQuery> dhcp_query);
- void OnTimeout();
- void OnFetcherDone(int result);
- void TransitionToFinish();
-
- // TaskRunner for posting tasks to a worker thread.
- scoped_refptr<base::TaskRunner> task_runner_;
-
- // Current state of this state machine.
- State state_;
-
- // A network error indicating result of operation.
- int result_;
-
- // Empty string or the PAC script downloaded.
- base::string16 pac_script_;
-
- // Empty URL or the PAC URL configured in DHCP.
- GURL pac_url_;
-
- // Callback to let our client know we're done. Invalid in states
- // START, FINISH and CANCEL.
- net::CompletionCallback callback_;
-
- // Fetcher to retrieve PAC files once URL is known.
- scoped_ptr<ProxyScriptFetcher> script_fetcher_;
-
- // Implements a timeout on the call to the Win32 DHCP API.
- base::OneShotTimer<DhcpProxyScriptAdapterFetcher> wait_timer_;
-
- URLRequestContext* const url_request_context_;
-
- DISALLOW_IMPLICIT_CONSTRUCTORS(DhcpProxyScriptAdapterFetcher);
-};
-
-} // namespace net
-
-#endif // NET_PROXY_DHCP_PROXY_SCRIPT_ADAPTER_FETCHER_WIN_H_
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