net/http/url_security_manager.h

   1 // Copyright (c) 2011 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 NET_HTTP_URL_SECURITY_MANAGER_H_
   6 #define NET_HTTP_URL_SECURITY_MANAGER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "net/base/net_export.h"
  11
  12 class GURL;
  13
  14 namespace net {
  15
  16 class HttpAuthFilter;
  17
  18 // The URL security manager controls the policies (allow, deny, prompt user)
  19 // regarding URL actions (e.g., sending the default credentials to a server).
  20 class NET_EXPORT URLSecurityManager {
  21  public:
  22   URLSecurityManager() {}
  23   virtual ~URLSecurityManager() {}
  24
  25   // Creates a platform-dependent instance of URLSecurityManager.
  26   //
  27   // |whitelist_default| is the whitelist of servers that default credentials
  28   // can be used with during NTLM or Negotiate authentication. If
  29   // |whitelist_default| is NULL and the platform is Windows, it indicates
  30   // that security zone mapping should be used to determine whether default
  31   // credentials sxhould be used. If |whitelist_default| is NULL and the
  32   // platform is non-Windows, it indicates that no servers should be
  33   // whitelisted.
  34   //
  35   // |whitelist_delegate| is the whitelist of servers that are allowed
  36   // to have Delegated Kerberos tickets. If |whitelist_delegate| is NULL,
  37   // no servers can have delegated Kerberos tickets.
  38   //
  39   // Both |whitelist_default| and |whitelist_delegate| will be owned by
  40   // the created URLSecurityManager.
  41   //
  42   // TODO(cbentzel): Perhaps it's better to make a non-abstract HttpAuthFilter
  43   //                 and just copy into the URLSecurityManager?
  44   static URLSecurityManager* Create(const HttpAuthFilter* whitelist_default,
  45                                     const HttpAuthFilter* whitelist_delegate);
  46
  47   // Returns true if we can send the default credentials to the server at
  48   // |auth_origin| for HTTP NTLM or Negotiate authentication.
  49   virtual bool CanUseDefaultCredentials(const GURL& auth_origin) const = 0;
  50
  51   // Returns true if Kerberos delegation is allowed for the server at
  52   // |auth_origin| for HTTP Negotiate authentication.
  53   virtual bool CanDelegate(const GURL& auth_origin) const = 0;
  54
  55  private:
  56   DISALLOW_COPY_AND_ASSIGN(URLSecurityManager);
  57 };
  58
  59 class URLSecurityManagerWhitelist : public URLSecurityManager {
  60  public:
  61   // The URLSecurityManagerWhitelist takes ownership of the whitelists.
  62   URLSecurityManagerWhitelist(const HttpAuthFilter* whitelist_default,
  63                               const HttpAuthFilter* whitelist_delegation);
  64   virtual ~URLSecurityManagerWhitelist();
  65
  66   // URLSecurityManager methods.
  67   virtual bool CanUseDefaultCredentials(const GURL& auth_origin) const OVERRIDE;
  68   virtual bool CanDelegate(const GURL& auth_origin) const OVERRIDE;
  69
  70  private:
  71   scoped_ptr<const HttpAuthFilter> whitelist_default_;
  72   scoped_ptr<const HttpAuthFilter> whitelist_delegate_;
  73
  74   DISALLOW_COPY_AND_ASSIGN(URLSecurityManagerWhitelist);
  75 };
  76
  77 }  // namespace net
  78
  79 #endif  // NET_HTTP_URL_SECURITY_MANAGER_H_