content/browser/loader/certificate_resource_handler.h

   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 #ifndef CONTENT_BROWSER_LOADER_CERTIFICATE_RESOURCE_HANDLER_H_
   6 #define CONTENT_BROWSER_LOADER_CERTIFICATE_RESOURCE_HANDLER_H_
   7
   8 #include <string>
   9
  10 #include "base/macros.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "content/browser/loader/resource_handler.h"
  13 #include "net/base/mime_util.h"
  14
  15 namespace net {
  16 class GrowableIOBuffer;
  17 class URLRequest;
  18 class URLRequestStatus;
  19 }  // namespace net
  20
  21 namespace content {
  22
  23 // This class handles certificate mime types such as:
  24 // - "application/x-x509-user-cert"
  25 // - "application/x-x509-ca-cert"
  26 // - "application/x-pkcs12"
  27 //
  28 class CertificateResourceHandler : public ResourceHandler {
  29  public:
  30   explicit CertificateResourceHandler(net::URLRequest* request);
  31   ~CertificateResourceHandler() override;
  32
  33   // Not needed, as this event handler ought to be the final resource.
  34   bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
  35                            ResourceResponse* resp,
  36                            bool* defer) override;
  37
  38   // Check if this indeed an X509 cert.
  39   bool OnResponseStarted(ResourceResponse* resp, bool* defer) override;
  40
  41   // Pass-through implementation.
  42   bool OnWillStart(const GURL& url, bool* defer) override;
  43
  44   // Pass-through implementation.
  45   bool OnBeforeNetworkStart(const GURL& url, bool* defer) override;
  46
  47   // Create a new buffer to store received data.
  48   bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
  49                   int* buf_size,
  50                   int min_size) override;
  51
  52   // A read was completed, maybe allocate a new buffer for further data.
  53   bool OnReadCompleted(int bytes_read, bool* defer) override;
  54
  55   // Done downloading the certificate.
  56   void OnResponseCompleted(const net::URLRequestStatus& urs,
  57                            const std::string& sec_info,
  58                            bool* defer) override;
  59
  60   // N/A to cert downloading.
  61   void OnDataDownloaded(int bytes_downloaded) override;
  62
  63  private:
  64   scoped_refptr<net::GrowableIOBuffer> buffer_;
  65   net::CertificateMimeType cert_type_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(CertificateResourceHandler);
  68 };
  69
  70 }  // namespace content
  71
  72 #endif  // CONTENT_BROWSER_LOADER_CERTIFICATE_RESOURCE_HANDLER_H_