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      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
      3 // found in the LICENSE file.
      4 
      5 #include "net/url_request/url_request_context.h"
      6 
      7 #include "base/compiler_specific.h"
      8 #include "base/debug/alias.h"
      9 #include "base/debug/stack_trace.h"
     10 #include "base/strings/string_util.h"
     11 #include "net/cookies/cookie_store.h"
     12 #include "net/dns/host_resolver.h"
     13 #include "net/http/http_transaction_factory.h"
     14 #include "net/url_request/http_user_agent_settings.h"
     15 #include "net/url_request/url_request.h"
     16 
     17 namespace net {
     18 
     19 URLRequestContext::URLRequestContext()
     20     : net_log_(NULL),
     21       host_resolver_(NULL),
     22       cert_verifier_(NULL),
     23       server_bound_cert_service_(NULL),
     24       fraudulent_certificate_reporter_(NULL),
     25       http_auth_handler_factory_(NULL),
     26       proxy_service_(NULL),
     27       network_delegate_(NULL),
     28       http_user_agent_settings_(NULL),
     29       transport_security_state_(NULL),
     30       cert_transparency_verifier_(NULL),
     31       http_transaction_factory_(NULL),
     32       job_factory_(NULL),
     33       throttler_manager_(NULL),
     34       url_requests_(new std::set<const URLRequest*>) {
     35 }
     36 
     37 URLRequestContext::~URLRequestContext() {
     38   AssertNoURLRequests();
     39 }
     40 
     41 void URLRequestContext::CopyFrom(const URLRequestContext* other) {
     42   // Copy URLRequestContext parameters.
     43   set_net_log(other->net_log_);
     44   set_host_resolver(other->host_resolver_);
     45   set_cert_verifier(other->cert_verifier_);
     46   set_server_bound_cert_service(other->server_bound_cert_service_);
     47   set_fraudulent_certificate_reporter(other->fraudulent_certificate_reporter_);
     48   set_http_auth_handler_factory(other->http_auth_handler_factory_);
     49   set_proxy_service(other->proxy_service_);
     50   set_ssl_config_service(other->ssl_config_service_.get());
     51   set_network_delegate(other->network_delegate_);
     52   set_http_server_properties(other->http_server_properties_);
     53   set_cookie_store(other->cookie_store_.get());
     54   set_transport_security_state(other->transport_security_state_);
     55   set_cert_transparency_verifier(other->cert_transparency_verifier_);
     56   set_http_transaction_factory(other->http_transaction_factory_);
     57   set_job_factory(other->job_factory_);
     58   set_throttler_manager(other->throttler_manager_);
     59   set_http_user_agent_settings(other->http_user_agent_settings_);
     60 }
     61 
     62 const HttpNetworkSession::Params* URLRequestContext::GetNetworkSessionParams(
     63     ) const {
     64   HttpTransactionFactory* transaction_factory = http_transaction_factory();
     65   if (!transaction_factory)
     66     return NULL;
     67   HttpNetworkSession* network_session = transaction_factory->GetSession();
     68   if (!network_session)
     69     return NULL;
     70   return &network_session->params();
     71 }
     72 
     73 scoped_ptr<URLRequest> URLRequestContext::CreateRequest(
     74     const GURL& url,
     75     RequestPriority priority,
     76     URLRequest::Delegate* delegate) const {
     77   return scoped_ptr<URLRequest>(new URLRequest(url, priority, delegate, this));
     78 }
     79 
     80 void URLRequestContext::set_cookie_store(CookieStore* cookie_store) {
     81   cookie_store_ = cookie_store;
     82 }
     83 
     84 std::string URLRequestContext::GetAcceptLanguage() const {
     85   return http_user_agent_settings_ ?
     86       http_user_agent_settings_->GetAcceptLanguage() : std::string();
     87 }
     88 
     89 std::string URLRequestContext::GetUserAgent(const GURL& url) const {
     90   return http_user_agent_settings_ ?
     91       http_user_agent_settings_->GetUserAgent(url) : std::string();
     92 }
     93 
     94 void URLRequestContext::AssertNoURLRequests() const {
     95   int num_requests = url_requests_->size();
     96   if (num_requests != 0) {
     97     // We're leaking URLRequests :( Dump the URL of the first one and record how
     98     // many we leaked so we have an idea of how bad it is.
     99     char url_buf[128];
    100     const URLRequest* request = *url_requests_->begin();
    101     base::strlcpy(url_buf, request->url().spec().c_str(), arraysize(url_buf));
    102     bool has_delegate = request->has_delegate();
    103     int load_flags = request->load_flags();
    104     base::debug::StackTrace stack_trace(NULL, 0);
    105     if (request->stack_trace())
    106       stack_trace = *request->stack_trace();
    107     base::debug::Alias(url_buf);
    108     base::debug::Alias(&num_requests);
    109     base::debug::Alias(&has_delegate);
    110     base::debug::Alias(&load_flags);
    111     base::debug::Alias(&stack_trace);
    112     CHECK(false) << "Leaked " << num_requests << " URLRequest(s). First URL: "
    113                  << request->url().spec().c_str() << ".";
    114   }
    115 }
    116 
    117 }  // namespace net
    118