summaryrefslogtreecommitdiffstats
path: root/security/manager/ssl/nsCertOverrideService.h
blob: 21cff56300db6490cf9649aa62099cb5525749b3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsCertOverrideService_h
#define nsCertOverrideService_h

#include <utility>

#include "mozilla/HashFunctions.h"
#include "mozilla/Mutex.h"
#include "mozilla/OriginAttributes.h"
#include "mozilla/TaskQueue.h"
#include "nsIAsyncShutdown.h"
#include "nsICertOverrideService.h"
#include "nsIFile.h"
#include "nsIObserver.h"
#include "nsString.h"
#include "nsTHashtable.h"
#include "nsWeakReference.h"
#include "secoidt.h"

class nsCertOverride final : public nsICertOverride {
 public:
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_NSICERTOVERRIDE

  nsCertOverride() : mPort(-1), mIsTemporary(false) {}

  nsCString mAsciiHost;
  int32_t mPort;
  mozilla::OriginAttributes mOriginAttributes;
  bool mIsTemporary;  // true: session only, false: stored on disk
  nsCString mFingerprint;

 private:
  ~nsCertOverride() = default;
};

// hash entry class
class nsCertOverrideEntry final : public PLDHashEntryHdr {
 public:
  // Hash methods
  typedef const char* KeyType;
  typedef const char* KeyTypePointer;

  // do nothing with aHost - we require mHead to be set before we're live!
  explicit nsCertOverrideEntry(KeyTypePointer aHostWithPortUTF8) {}

  nsCertOverrideEntry(nsCertOverrideEntry&& toMove)
      : PLDHashEntryHdr(std::move(toMove)),
        mSettings(std::move(toMove.mSettings)),
        mKeyString(std::move(toMove.mKeyString)) {}

  ~nsCertOverrideEntry() = default;

  KeyType GetKey() const { return KeyStringPtr(); }

  KeyTypePointer GetKeyPointer() const { return KeyStringPtr(); }

  bool KeyEquals(KeyTypePointer aKey) const {
    return !strcmp(KeyStringPtr(), aKey);
  }

  static KeyTypePointer KeyToPointer(KeyType aKey) { return aKey; }

  static PLDHashNumber HashKey(KeyTypePointer aKey) {
    return mozilla::HashString(aKey);
  }

  enum { ALLOW_MEMMOVE = false };

  // get methods
  inline const nsCString& KeyString() const { return mKeyString; }

  inline KeyTypePointer KeyStringPtr() const { return mKeyString.get(); }

  RefPtr<nsCertOverride> mSettings;
  nsCString mKeyString;
};

class nsCertOverrideService final : public nsICertOverrideService,
                                    public nsIObserver,
                                    public nsSupportsWeakReference,
                                    public nsIAsyncShutdownBlocker {
 public:
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_NSICERTOVERRIDESERVICE
  NS_DECL_NSIOBSERVER
  NS_DECL_NSIASYNCSHUTDOWNBLOCKER

  nsCertOverrideService();

  nsresult Init();
  void RemoveAllTemporaryOverrides();

  // Concatenates host name and the port number. If the port number is -1 then
  // port 443 is automatically used. This method ensures there is always a port
  // number separated with colon.
  static void GetHostWithPort(const nsACString& aHostName, int32_t aPort,
                              nsACString& aRetval);

  // Concatenates host name, port number, and origin attributes.
  static void GetKeyString(const nsACString& aHostName, int32_t aPort,
                           const mozilla::OriginAttributes& aOriginAttributes,
                           nsACString& aRetval);

  void AssertOnTaskQueue() const {
    MOZ_ASSERT(mWriterTaskQueue->IsOnCurrentThread());
  }

  void RemoveShutdownBlocker();

 private:
  ~nsCertOverrideService();

  mozilla::Mutex mMutex;
  bool mDisableAllSecurityCheck MOZ_GUARDED_BY(mMutex);
  nsCOMPtr<nsIFile> mSettingsFile MOZ_GUARDED_BY(mMutex);
  nsTHashtable<nsCertOverrideEntry> mSettingsTable MOZ_GUARDED_BY(mMutex);

  void CountPermanentOverrideTelemetry(
      const mozilla::MutexAutoLock& aProofOfLock);

  nsresult Read(const mozilla::MutexAutoLock& aProofOfLock);
  nsresult Write(const mozilla::MutexAutoLock& aProofOfLock);
  nsresult AddEntryToList(const nsACString& host, int32_t port,
                          const mozilla::OriginAttributes& aOriginAttributes,
                          const bool aIsTemporary,
                          const nsACString& fingerprint,
                          const mozilla::MutexAutoLock& aProofOfLock);
  already_AddRefed<nsCertOverride> GetOverrideFor(
      const nsACString& aHostName, int32_t aPort,
      const mozilla::OriginAttributes& aOriginAttributes);

  // Set in constructor only
  RefPtr<mozilla::TaskQueue> mWriterTaskQueue;

  // Only accessed on the main thread
  uint64_t mPendingWriteCount;
};

#define NS_CERTOVERRIDE_CID                          \
  { /* 67ba681d-5485-4fff-952c-2ee337ffdcd6 */       \
    0x67ba681d, 0x5485, 0x4fff, {                    \
      0x95, 0x2c, 0x2e, 0xe3, 0x37, 0xff, 0xdc, 0xd6 \
    }                                                \
  }

#endif  // nsCertOverrideService_h