94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
//
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// Copyright (C) 2009 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "update_engine/common/http_fetcher.h"
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#include <base/bind.h>
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using base::Closure;
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using brillo::MessageLoop;
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using std::deque;
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using std::string;
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namespace chromeos_update_engine {
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HttpFetcher::~HttpFetcher() {
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CancelProxyResolution();
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}
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void HttpFetcher::SetPostData(const void* data,
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size_t size,
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HttpContentType type) {
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post_data_set_ = true;
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post_data_.clear();
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const char* char_data = reinterpret_cast<const char*>(data);
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post_data_.insert(post_data_.end(), char_data, char_data + size);
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post_content_type_ = type;
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}
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void HttpFetcher::SetPostData(const void* data, size_t size) {
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SetPostData(data, size, kHttpContentTypeUnspecified);
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}
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// Proxy methods to set the proxies, then to pop them off.
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void HttpFetcher::ResolveProxiesForUrl(const string& url,
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const Closure& callback) {
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CHECK_EQ(static_cast<Closure*>(nullptr), callback_.get());
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callback_.reset(new Closure(callback));
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if (!proxy_resolver_) {
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LOG(INFO) << "Not resolving proxies (no proxy resolver).";
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no_resolver_idle_id_ = MessageLoop::current()->PostTask(
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FROM_HERE,
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base::Bind(&HttpFetcher::NoProxyResolverCallback,
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base::Unretained(this)));
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return;
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}
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proxy_request_ = proxy_resolver_->GetProxiesForUrl(
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url, base::Bind(&HttpFetcher::ProxiesResolved, base::Unretained(this)));
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}
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void HttpFetcher::NoProxyResolverCallback() {
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no_resolver_idle_id_ = MessageLoop::kTaskIdNull;
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ProxiesResolved(deque<string>());
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}
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void HttpFetcher::ProxiesResolved(const deque<string>& proxies) {
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proxy_request_ = kProxyRequestIdNull;
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if (!proxies.empty())
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SetProxies(proxies);
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CHECK(callback_.get()) << "ProxiesResolved but none pending.";
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Closure* callback = callback_.release();
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// This may indirectly call back into ResolveProxiesForUrl():
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callback->Run();
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delete callback;
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}
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bool HttpFetcher::CancelProxyResolution() {
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bool ret = false;
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if (no_resolver_idle_id_ != MessageLoop::kTaskIdNull) {
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ret = MessageLoop::current()->CancelTask(no_resolver_idle_id_);
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no_resolver_idle_id_ = MessageLoop::kTaskIdNull;
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}
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if (proxy_request_ && proxy_resolver_) {
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ret = proxy_resolver_->CancelProxyRequest(proxy_request_) || ret;
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proxy_request_ = kProxyRequestIdNull;
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}
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return ret;
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}
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} // namespace chromeos_update_engine
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