1// Copyright 2014 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 REMOTING_HOST_TOKEN_VALIDATOR_BASE_H_
6#define REMOTING_HOST_TOKEN_VALIDATOR_BASE_H_
7
8#include "base/callback.h"
9#include "base/memory/weak_ptr.h"
10#include "net/url_request/url_request.h"
11#include "net/url_request/url_request_context_getter.h"
12#include "remoting/protocol/token_validator.h"
13#include "url/gurl.h"
14
15namespace net {
16class ClientCertStore;
17typedef std::vector<scoped_refptr<X509Certificate> > CertificateList;
18}
19
20namespace remoting {
21
22struct ThirdPartyAuthConfig {
23  inline bool is_empty() const {
24    return token_url.is_empty() && token_validation_url.is_empty();
25  }
26
27  inline bool is_valid() const {
28    return token_url.is_valid() && token_validation_url.is_valid();
29  }
30
31  GURL token_url;
32  GURL token_validation_url;
33  std::string token_validation_cert_issuer;
34};
35
36class TokenValidatorBase
37    : public net::URLRequest::Delegate,
38      public protocol::TokenValidator {
39 public:
40  TokenValidatorBase(
41      const ThirdPartyAuthConfig& third_party_auth_config,
42      const std::string& token_scope,
43      scoped_refptr<net::URLRequestContextGetter> request_context_getter);
44  virtual ~TokenValidatorBase();
45
46  // TokenValidator interface.
47  virtual void ValidateThirdPartyToken(
48      const std::string& token,
49      const base::Callback<void(
50          const std::string& shared_secret)>& on_token_validated) OVERRIDE;
51
52  virtual const GURL& token_url() const OVERRIDE;
53  virtual const std::string& token_scope() const OVERRIDE;
54
55  // URLRequest::Delegate interface.
56  virtual void OnResponseStarted(net::URLRequest* source) OVERRIDE;
57  virtual void OnReadCompleted(net::URLRequest* source,
58                               int bytes_read) OVERRIDE;
59  virtual void OnCertificateRequested(
60      net::URLRequest* source,
61      net::SSLCertRequestInfo* cert_request_info) OVERRIDE;
62
63 protected:
64  void OnCertificatesSelected(net::CertificateList* selected_certs,
65                              net::ClientCertStore* unused);
66
67  virtual void StartValidateRequest(const std::string& token) = 0;
68  virtual bool IsValidScope(const std::string& token_scope);
69  std::string ProcessResponse();
70
71  // Constructor parameters.
72  ThirdPartyAuthConfig third_party_auth_config_;
73  std::string token_scope_;
74  scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
75
76  // URLRequest related fields.
77  scoped_ptr<net::URLRequest> request_;
78  scoped_refptr<net::IOBuffer> buffer_;
79  std::string data_;
80
81  base::Callback<void(const std::string& shared_secret)> on_token_validated_;
82
83  base::WeakPtrFactory<TokenValidatorBase> weak_factory_;
84
85  DISALLOW_COPY_AND_ASSIGN(TokenValidatorBase);
86};
87
88}  // namespace remoting
89
90#endif  // REMOTING_HOST_TOKEN_VALIDATOR_BASE_H
91