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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #include "remoting/host/dns_blackhole_checker.h" | 5 #include "remoting/host/dns_blackhole_checker.h" |
| 6 | 6 |
| 7 #include "net/url_request/url_fetcher.h" | 7 #include "net/url_request/url_fetcher.h" |
| 8 #include "net/url_request/url_request_context_getter.h" | 8 #include "net/url_request/url_request_context_getter.h" |
| 9 #include "remoting/base/logging.h" |
| 9 #include "url/gurl.h" | 10 #include "url/gurl.h" |
| 10 | 11 |
| 11 namespace remoting { | 12 namespace remoting { |
| 12 | 13 |
| 13 // Default prefix added to the base talkgadget URL. | 14 // Default prefix added to the base talkgadget URL. |
| 14 const char kDefaultHostTalkGadgetPrefix[] = "chromoting-host"; | 15 const char kDefaultHostTalkGadgetPrefix[] = "chromoting-host"; |
| 15 | 16 |
| 16 // The base talkgadget URL. | 17 // The base talkgadget URL. |
| 17 const char kTalkGadgetUrl[] = ".talkgadget.google.com/talkgadget/" | 18 const char kTalkGadgetUrl[] = ".talkgadget.google.com/talkgadget/" |
| 18 "oauth/chrome-remote-desktop-host"; | 19 "oauth/chrome-remote-desktop-host"; |
| 19 | 20 |
| 20 DnsBlackholeChecker::DnsBlackholeChecker( | 21 DnsBlackholeChecker::DnsBlackholeChecker( |
| 21 scoped_refptr<net::URLRequestContextGetter> url_request_context_getter, | 22 scoped_refptr<net::URLRequestContextGetter> url_request_context_getter, |
| 22 std::string talkgadget_prefix) | 23 std::string talkgadget_prefix) |
| 23 : url_request_context_getter_(url_request_context_getter), | 24 : url_request_context_getter_(url_request_context_getter), |
| 24 talkgadget_prefix_(talkgadget_prefix) { | 25 talkgadget_prefix_(talkgadget_prefix) { |
| 25 } | 26 } |
| 26 | 27 |
| 27 DnsBlackholeChecker::~DnsBlackholeChecker() { | 28 DnsBlackholeChecker::~DnsBlackholeChecker() { |
| 28 } | 29 } |
| 29 | 30 |
| 30 // This is called in response to the TalkGadget http request initiated from | 31 // This is called in response to the TalkGadget http request initiated from |
| 31 // CheckStatus(). | 32 // CheckStatus(). |
| 32 void DnsBlackholeChecker::OnURLFetchComplete(const net::URLFetcher* source) { | 33 void DnsBlackholeChecker::OnURLFetchComplete(const net::URLFetcher* source) { |
| 33 int response = source->GetResponseCode(); | 34 int response = source->GetResponseCode(); |
| 34 bool allow = false; | 35 bool allow = false; |
| 35 if (source->GetResponseCode() == 200) { | 36 if (source->GetResponseCode() == 200) { |
| 36 LOG(INFO) << "Successfully connected to host talkgadget."; | 37 LOG_INFO << "Successfully connected to host talkgadget."; |
| 37 allow = true; | 38 allow = true; |
| 38 } else { | 39 } else { |
| 39 LOG(INFO) << "Unable to connect to host talkgadget (" << response << ")"; | 40 LOG_INFO << "Unable to connect to host talkgadget (" << response << ")"; |
| 40 } | 41 } |
| 41 url_fetcher_.reset(NULL); | 42 url_fetcher_.reset(NULL); |
| 42 callback_.Run(allow); | 43 callback_.Run(allow); |
| 43 callback_.Reset(); | 44 callback_.Reset(); |
| 44 } | 45 } |
| 45 | 46 |
| 46 void DnsBlackholeChecker::CheckForDnsBlackhole( | 47 void DnsBlackholeChecker::CheckForDnsBlackhole( |
| 47 const base::Callback<void(bool)>& callback) { | 48 const base::Callback<void(bool)>& callback) { |
| 48 // Make sure we're not currently in the middle of a connection check. | 49 // Make sure we're not currently in the middle of a connection check. |
| 49 if (!url_fetcher_.get()) { | 50 if (!url_fetcher_.get()) { |
| 50 DCHECK(callback_.is_null()); | 51 DCHECK(callback_.is_null()); |
| 51 callback_ = callback; | 52 callback_ = callback; |
| 52 std::string talkgadget_url("https://"); | 53 std::string talkgadget_url("https://"); |
| 53 if (talkgadget_prefix_.empty()) { | 54 if (talkgadget_prefix_.empty()) { |
| 54 talkgadget_url += kDefaultHostTalkGadgetPrefix; | 55 talkgadget_url += kDefaultHostTalkGadgetPrefix; |
| 55 } else { | 56 } else { |
| 56 talkgadget_url += talkgadget_prefix_; | 57 talkgadget_url += talkgadget_prefix_; |
| 57 } | 58 } |
| 58 talkgadget_url += kTalkGadgetUrl; | 59 talkgadget_url += kTalkGadgetUrl; |
| 59 LOG(INFO) << "Verifying connection to " << talkgadget_url; | 60 LOG_INFO << "Verifying connection to " << talkgadget_url; |
| 60 url_fetcher_.reset(net::URLFetcher::Create(GURL(talkgadget_url), | 61 url_fetcher_.reset(net::URLFetcher::Create(GURL(talkgadget_url), |
| 61 net::URLFetcher::GET, this)); | 62 net::URLFetcher::GET, this)); |
| 62 url_fetcher_->SetRequestContext(url_request_context_getter_.get()); | 63 url_fetcher_->SetRequestContext(url_request_context_getter_.get()); |
| 63 url_fetcher_->Start(); | 64 url_fetcher_->Start(); |
| 64 } else { | 65 } else { |
| 65 LOG(INFO) << "Pending connection check"; | 66 LOG_INFO << "Pending connection check"; |
| 66 } | 67 } |
| 67 } | 68 } |
| 68 | 69 |
| 69 } // namespace remoting | 70 } // namespace remoting |
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