1 // 2 // Copyright (C) 2009 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #include "update_engine/common/http_fetcher.h" 18 19 #include <base/bind.h> 20 21 using base::Closure; 22 using brillo::MessageLoop; 23 using std::deque; 24 using std::string; 25 26 namespace chromeos_update_engine { 27 28 HttpFetcher::~HttpFetcher() { 29 if (no_resolver_idle_id_ != MessageLoop::kTaskIdNull) { 30 MessageLoop::current()->CancelTask(no_resolver_idle_id_); 31 no_resolver_idle_id_ = MessageLoop::kTaskIdNull; 32 } 33 } 34 35 void HttpFetcher::SetPostData(const void* data, size_t size, 36 HttpContentType type) { 37 post_data_set_ = true; 38 post_data_.clear(); 39 const char* char_data = reinterpret_cast<const char*>(data); 40 post_data_.insert(post_data_.end(), char_data, char_data + size); 41 post_content_type_ = type; 42 } 43 44 void HttpFetcher::SetPostData(const void* data, size_t size) { 45 SetPostData(data, size, kHttpContentTypeUnspecified); 46 } 47 48 // Proxy methods to set the proxies, then to pop them off. 49 bool HttpFetcher::ResolveProxiesForUrl(const string& url, 50 const Closure& callback) { 51 CHECK_EQ(static_cast<Closure*>(nullptr), callback_.get()); 52 callback_.reset(new Closure(callback)); 53 54 if (!proxy_resolver_) { 55 LOG(INFO) << "Not resolving proxies (no proxy resolver)."; 56 no_resolver_idle_id_ = MessageLoop::current()->PostTask( 57 FROM_HERE, 58 base::Bind(&HttpFetcher::NoProxyResolverCallback, 59 base::Unretained(this))); 60 return true; 61 } 62 return proxy_resolver_->GetProxiesForUrl(url, 63 &HttpFetcher::StaticProxiesResolved, 64 this); 65 } 66 67 void HttpFetcher::NoProxyResolverCallback() { 68 ProxiesResolved(deque<string>()); 69 } 70 71 void HttpFetcher::ProxiesResolved(const deque<string>& proxies) { 72 no_resolver_idle_id_ = MessageLoop::kTaskIdNull; 73 if (!proxies.empty()) 74 SetProxies(proxies); 75 CHECK_NE(static_cast<Closure*>(nullptr), callback_.get()); 76 Closure* callback = callback_.release(); 77 // This may indirectly call back into ResolveProxiesForUrl(): 78 callback->Run(); 79 delete callback; 80 } 81 82 } // namespace chromeos_update_engine 83
