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   bool OnUploadProgress(uint64 position, uint64 size) override;
  34
  35   // Not needed, as this event handler ought to be the final resource.
  36   bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
  37                            ResourceResponse* resp,
  38                            bool* defer) override;
  39
  40   // Check if this indeed an X509 cert.
  41   bool OnResponseStarted(ResourceResponse* resp, bool* defer) override;
  42
  43   // Pass-through implementation.
  44   bool OnWillStart(const GURL& url, bool* defer) override;
  45
  46   // Pass-through implementation.
  47   bool OnBeforeNetworkStart(const GURL& url, bool* defer) override;
  48
  49   // Create a new buffer to store received data.
  50   bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
  51                   int* buf_size,
  52                   int min_size) override;
  53
  54   // A read was completed, maybe allocate a new buffer for further data.
  55   bool OnReadCompleted(int bytes_read, bool* defer) override;
  56
  57   // Done downloading the certificate.
  58   void OnResponseCompleted(const net::URLRequestStatus& urs,
  59                            const std::string& sec_info,
  60                            bool* defer) override;
  61
  62   // N/A to cert downloading.
  63   void OnDataDownloaded(int bytes_downloaded) override;
  64
  65  private:
  66   scoped_refptr<net::GrowableIOBuffer> buffer_;
  67   net::CertificateMimeType cert_type_;
  68
  69   DISALLOW_COPY_AND_ASSIGN(CertificateResourceHandler);
  70 };
  71
  72 }  // namespace content
  73
  74 #endif  // CONTENT_BROWSER_LOADER_CERTIFICATE_RESOURCE_HANDLER_H_