src/chrome/browser/extensions/api/messaging/message_property_provider.cc

   1 // Copyright 2013 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 "chrome/browser/extensions/api/messaging/message_property_provider.h"
   6
   7 #include "base/json/json_writer.h"
   8 #include "base/logging.h"
   9 #include "base/message_loop/message_loop_proxy.h"
  10 #include "base/strings/string_piece.h"
  11 #include "base/values.h"
  12 #include "chrome/browser/profiles/profile.h"
  13 #include "content/public/browser/browser_thread.h"
  14 #include "extensions/common/api/runtime.h"
  15 #include "net/base/completion_callback.h"
  16 #include "net/cert/asn1_util.h"
  17 #include "net/cert/jwk_serializer.h"
  18 #include "net/ssl/server_bound_cert_service.h"
  19 #include "net/url_request/url_request_context.h"
  20 #include "net/url_request/url_request_context_getter.h"
  21 #include "url/gurl.h"
  22
  23 namespace extensions {
  24
  25 MessagePropertyProvider::MessagePropertyProvider() {}
  26
  27 void MessagePropertyProvider::GetDomainBoundCert(Profile* profile,
  28     const GURL& source_url, const DomainBoundCertCallback& reply) {
  29   if (!source_url.is_valid()) {
  30     // This isn't a real URL, so there's no sense in looking for a channel ID
  31     // for it. Dispatch with an empty tls channel ID.
  32     reply.Run(std::string());
  33     return;
  34   }
  35   scoped_refptr<net::URLRequestContextGetter> request_context_getter(
  36       profile->GetRequestContext());
  37   content::BrowserThread::PostTask(content::BrowserThread::IO, FROM_HERE,
  38       base::Bind(&MessagePropertyProvider::GetDomainBoundCertOnIOThread,
  39                  base::MessageLoopProxy::current(),
  40                  request_context_getter,
  41                  source_url.host(),
  42                  reply));
  43 }
  44
  45 // Helper struct to bind the memory addresses that will be written to by
  46 // ServerBoundCertService::GetDomainBoundCert to the callback provided to
  47 // MessagePropertyProvider::GetDomainBoundCert.
  48 struct MessagePropertyProvider::GetDomainBoundCertOutput {
  49   std::string domain_bound_private_key;
  50   std::string domain_bound_cert;
  51   net::ServerBoundCertService::RequestHandle request_handle;
  52 };
  53
  54 // static
  55 void MessagePropertyProvider::GetDomainBoundCertOnIOThread(
  56     scoped_refptr<base::TaskRunner> original_task_runner,
  57     scoped_refptr<net::URLRequestContextGetter> request_context_getter,
  58     const std::string& host,
  59     const DomainBoundCertCallback& reply) {
  60   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
  61   net::ServerBoundCertService* server_bound_cert_service =
  62       request_context_getter->GetURLRequestContext()->
  63           server_bound_cert_service();
  64   GetDomainBoundCertOutput* output = new GetDomainBoundCertOutput();
  65   net::CompletionCallback net_completion_callback =
  66       base::Bind(&MessagePropertyProvider::GotDomainBoundCert,
  67                  original_task_runner,
  68                  base::Owned(output),
  69                  reply);
  70   int status = server_bound_cert_service->GetDomainBoundCert(
  71       host,
  72       &output->domain_bound_private_key,
  73       &output->domain_bound_cert,
  74       net_completion_callback,
  75       &output->request_handle);
  76   if (status == net::ERR_IO_PENDING)
  77     return;
  78   GotDomainBoundCert(original_task_runner, output, reply, status);
  79 }
  80
  81 // static
  82 void MessagePropertyProvider::GotDomainBoundCert(
  83     scoped_refptr<base::TaskRunner> original_task_runner,
  84     struct GetDomainBoundCertOutput* output,
  85     const DomainBoundCertCallback& reply,
  86     int status) {
  87   base::Closure no_tls_channel_id_closure = base::Bind(reply, "");
  88   if (status != net::OK) {
  89     original_task_runner->PostTask(FROM_HERE, no_tls_channel_id_closure);
  90     return;
  91   }
  92   base::StringPiece spki;
  93   if (!net::asn1::ExtractSPKIFromDERCert(output->domain_bound_cert, &spki)) {
  94     original_task_runner->PostTask(FROM_HERE, no_tls_channel_id_closure);
  95     return;
  96   }
  97   base::DictionaryValue jwk_value;
  98   if (!net::JwkSerializer::ConvertSpkiFromDerToJwk(spki, &jwk_value)) {
  99     original_task_runner->PostTask(FROM_HERE, no_tls_channel_id_closure);
 100     return;
 101   }
 102   std::string jwk_str;
 103   base::JSONWriter::Write(&jwk_value, &jwk_str);
 104   original_task_runner->PostTask(FROM_HERE, base::Bind(reply, jwk_str));
 105 }
 106
 107 }  // namespace extensions