Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	crypto/crypto_keys.h	Lines:	45	80	56.2 %
Date:	2022-05-20 04:15:46	Branches:	10	30	33.3 %


#ifndef SRC_CRYPTO_CRYPTO_KEYS_H_
#define SRC_CRYPTO_CRYPTO_KEYS_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "crypto/crypto_util.h"
#include "base_object.h"
#include "env.h"
#include "memory_tracker.h"
#include "node_buffer.h"
#include "node_worker.h"
#include "v8.h"

#include <openssl/evp.h>

#include <memory>
#include <string>

namespace node {
namespace crypto {
enum PKEncodingType {
  // RSAPublicKey / RSAPrivateKey according to PKCS#1.
  kKeyEncodingPKCS1,
  // PrivateKeyInfo or EncryptedPrivateKeyInfo according to PKCS#8.
  kKeyEncodingPKCS8,
  // SubjectPublicKeyInfo according to X.509.
  kKeyEncodingSPKI,
  // ECPrivateKey according to SEC1.
  kKeyEncodingSEC1
};

enum PKFormatType {
  kKeyFormatDER,
  kKeyFormatPEM,
  kKeyFormatJWK
};

enum KeyType {
  kKeyTypeSecret,
  kKeyTypePublic,
  kKeyTypePrivate
};

enum KeyEncodingContext {
  kKeyContextInput,
  kKeyContextExport,
  kKeyContextGenerate
};

enum class ParseKeyResult {
  kParseKeyOk,
  kParseKeyNotRecognized,
  kParseKeyNeedPassphrase,
  kParseKeyFailed
};

struct AsymmetricKeyEncodingConfig {
  bool output_key_object_ = false;
  PKFormatType format_ = kKeyFormatDER;
  v8::Maybe<PKEncodingType> type_ = v8::Nothing<PKEncodingType>();
};

using PublicKeyEncodingConfig = AsymmetricKeyEncodingConfig;

struct PrivateKeyEncodingConfig : public AsymmetricKeyEncodingConfig {
  const EVP_CIPHER* cipher_;
  // The ByteSource alone is not enough to distinguish between "no passphrase"
  // and a zero-length passphrase (which can be a null pointer), therefore, we
  // use a NonCopyableMaybe.
  NonCopyableMaybe<ByteSource> passphrase_;
};

// This uses the built-in reference counter of OpenSSL to manage an EVP_PKEY
// which is slightly more efficient than using a shared pointer and easier to
// use.
class ManagedEVPPKey : public MemoryRetainer {
 public:
  ManagedEVPPKey() : mutex_(std::make_shared<Mutex>()) {}
  explicit ManagedEVPPKey(EVPKeyPointer&& pkey);
  ManagedEVPPKey(const ManagedEVPPKey& that);
  ManagedEVPPKey& operator=(const ManagedEVPPKey& that);

  operator bool() const;
  EVP_PKEY* get() const;
  Mutex* mutex() const;

  void MemoryInfo(MemoryTracker* tracker) const override;
  SET_MEMORY_INFO_NAME(ManagedEVPPKey)
  SET_SELF_SIZE(ManagedEVPPKey)

  static PublicKeyEncodingConfig GetPublicKeyEncodingFromJs(
      const v8::FunctionCallbackInfo<v8::Value>& args,
      unsigned int* offset,
      KeyEncodingContext context);

  static NonCopyableMaybe<PrivateKeyEncodingConfig> GetPrivateKeyEncodingFromJs(
      const v8::FunctionCallbackInfo<v8::Value>& args,
      unsigned int* offset,
      KeyEncodingContext context);

  static ManagedEVPPKey GetParsedKey(Environment* env,
                                     EVPKeyPointer&& pkey,
                                     ParseKeyResult ret,
                                     const char* default_msg);

  static ManagedEVPPKey GetPublicOrPrivateKeyFromJs(
    const v8::FunctionCallbackInfo<v8::Value>& args,
    unsigned int* offset);

  static ManagedEVPPKey GetPrivateKeyFromJs(
      const v8::FunctionCallbackInfo<v8::Value>& args,
      unsigned int* offset,
      bool allow_key_object);

  static v8::Maybe<bool> ToEncodedPublicKey(
      Environment* env,
      ManagedEVPPKey key,
      const PublicKeyEncodingConfig& config,
      v8::Local<v8::Value>* out);

  static v8::Maybe<bool> ToEncodedPrivateKey(
      Environment* env,
      ManagedEVPPKey key,
      const PrivateKeyEncodingConfig& config,
      v8::Local<v8::Value>* out);

 private:
  size_t size_of_private_key() const;
  size_t size_of_public_key() const;

  EVPKeyPointer pkey_;
  std::shared_ptr<Mutex> mutex_;
};

// Objects of this class can safely be shared among threads.
class KeyObjectData : public MemoryRetainer {
 public:
  static std::shared_ptr<KeyObjectData> CreateSecret(ByteSource key);

  static std::shared_ptr<KeyObjectData> CreateAsymmetric(
      KeyType type,
      const ManagedEVPPKey& pkey);

  KeyType GetKeyType() const;

  // These functions allow unprotected access to the raw key material and should
  // only be used to implement cryptographic operations requiring the key.
  ManagedEVPPKey GetAsymmetricKey() const;
  const char* GetSymmetricKey() const;
  size_t GetSymmetricKeySize() const;

  void MemoryInfo(MemoryTracker* tracker) const override;
  SET_MEMORY_INFO_NAME(KeyObjectData)
  SET_SELF_SIZE(KeyObjectData)

 private:
  explicit KeyObjectData(ByteSource symmetric_key);

  KeyObjectData(
      KeyType type,
      const ManagedEVPPKey& pkey);

  const KeyType key_type_;
  const ByteSource symmetric_key_;
  const unsigned int symmetric_key_len_;
  const ManagedEVPPKey asymmetric_key_;
};

class KeyObjectHandle : public BaseObject {
 public:
  static v8::Local<v8::Function> Initialize(Environment* env);
  static void RegisterExternalReferences(ExternalReferenceRegistry* registry);

  static v8::MaybeLocal<v8::Object> Create(Environment* env,
                                           std::shared_ptr<KeyObjectData> data);

  // TODO(tniessen): track the memory used by OpenSSL types
  SET_NO_MEMORY_INFO()
  SET_MEMORY_INFO_NAME(KeyObjectHandle)
  SET_SELF_SIZE(KeyObjectHandle)

  const std::shared_ptr<KeyObjectData>& Data();

 protected:
  static void New(const v8::FunctionCallbackInfo<v8::Value>& args);

  static void Init(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void InitECRaw(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void InitEDRaw(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void InitJWK(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void GetKeyDetail(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void Equals(const v8::FunctionCallbackInfo<v8::Value>& args);

  static void ExportJWK(const v8::FunctionCallbackInfo<v8::Value>& args);

  static void GetAsymmetricKeyType(
      const v8::FunctionCallbackInfo<v8::Value>& args);
  v8::Local<v8::Value> GetAsymmetricKeyType() const;

  static void GetSymmetricKeySize(
      const v8::FunctionCallbackInfo<v8::Value>& args);

  static void Export(const v8::FunctionCallbackInfo<v8::Value>& args);

  v8::MaybeLocal<v8::Value> ExportSecretKey() const;
  v8::MaybeLocal<v8::Value> ExportPublicKey(
      const PublicKeyEncodingConfig& config) const;
  v8::MaybeLocal<v8::Value> ExportPrivateKey(
      const PrivateKeyEncodingConfig& config) const;

  KeyObjectHandle(Environment* env,
                  v8::Local<v8::Object> wrap);

 private:
  std::shared_ptr<KeyObjectData> data_;
};

class NativeKeyObject : public BaseObject {
 public:
  static void Initialize(Environment* env, v8::Local<v8::Object> target);
  static void RegisterExternalReferences(ExternalReferenceRegistry* registry);

  static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
  static void CreateNativeKeyObjectClass(
      const v8::FunctionCallbackInfo<v8::Value>& args);

  SET_NO_MEMORY_INFO()
  SET_MEMORY_INFO_NAME(NativeKeyObject)
  SET_SELF_SIZE(NativeKeyObject)

  class KeyObjectTransferData : public worker::TransferData {
   public:
    explicit KeyObjectTransferData(const std::shared_ptr<KeyObjectData>& data)
        : data_(data) {}

    BaseObjectPtr<BaseObject> Deserialize(
        Environment* env,
        v8::Local<v8::Context> context,
        std::unique_ptr<worker::TransferData> self) override;

    SET_MEMORY_INFO_NAME(KeyObjectTransferData)
    SET_SELF_SIZE(KeyObjectTransferData)
    SET_NO_MEMORY_INFO()

   private:
    std::shared_ptr<KeyObjectData> data_;
  };

  BaseObject::TransferMode GetTransferMode() const override;
  std::unique_ptr<worker::TransferData> CloneForMessaging() const override;

 private:
  NativeKeyObject(Environment* env,
                  v8::Local<v8::Object> wrap,
                  const std::shared_ptr<KeyObjectData>& handle_data)
    : BaseObject(env, wrap),
      handle_data_(handle_data) {
    MakeWeak();
  }

  std::shared_ptr<KeyObjectData> handle_data_;
};

enum WebCryptoKeyFormat {
  kWebCryptoKeyFormatRaw,
  kWebCryptoKeyFormatPKCS8,
  kWebCryptoKeyFormatSPKI,
  kWebCryptoKeyFormatJWK
};

enum class WebCryptoKeyExportStatus {
  OK,
  INVALID_KEY_TYPE,
  FAILED
};

template <typename KeyExportTraits>
class KeyExportJob final : public CryptoJob<KeyExportTraits> {
 public:
  using AdditionalParams = typename KeyExportTraits::AdditionalParameters;

  static void New(const v8::FunctionCallbackInfo<v8::Value>& args) {
    Environment* env = Environment::GetCurrent(args);
    CHECK(args.IsConstructCall());

    CryptoJobMode mode = GetCryptoJobMode(args[0]);

    CHECK(args[1]->IsUint32());  // Export Type
    CHECK(args[2]->IsObject());  // KeyObject

    WebCryptoKeyFormat format =
        static_cast<WebCryptoKeyFormat>(args[1].As<v8::Uint32>()->Value());

    KeyObjectHandle* key;
    ASSIGN_OR_RETURN_UNWRAP(&key, args[2]);

    CHECK_NOT_NULL(key);

    AdditionalParams params;
    if (KeyExportTraits::AdditionalConfig(args, 3, &params).IsNothing()) {
      // The KeyExportTraits::AdditionalConfig is responsible for
      // calling an appropriate THROW_CRYPTO_* variant reporting
      // whatever error caused initialization to fail.
      return;
    }

    new KeyExportJob<KeyExportTraits>(
        env,
        args.This(),
        mode,
        key->Data(),
        format,
        std::move(params));
  }

  static void Initialize(
      Environment* env,
      v8::Local<v8::Object> target) {
    CryptoJob<KeyExportTraits>::Initialize(New, env, target);
  }

  static void RegisterExternalReferences(ExternalReferenceRegistry* registry) {
    CryptoJob<KeyExportTraits>::RegisterExternalReferences(New, registry);
  }

  KeyExportJob(
      Environment* env,
      v8::Local<v8::Object> object,
      CryptoJobMode mode,
      std::shared_ptr<KeyObjectData> key,
      WebCryptoKeyFormat format,
      AdditionalParams&& params)
      : CryptoJob<KeyExportTraits>(
            env,
            object,
            AsyncWrap::PROVIDER_KEYEXPORTREQUEST,
            mode,
            std::move(params)),
        key_(key),
        format_(format) {}

  WebCryptoKeyFormat format() const { return format_; }

  void DoThreadPoolWork() override {
    const WebCryptoKeyExportStatus status =
        KeyExportTraits::DoExport(
            key_,
            format_,
            *CryptoJob<KeyExportTraits>::params(),
            &out_);
    if (status == WebCryptoKeyExportStatus::OK) {
      // Success!
      return;
    }
    CryptoErrorStore* errors = CryptoJob<KeyExportTraits>::errors();
    errors->Capture();
    if (errors->Empty()) {
      switch (status) {
        case WebCryptoKeyExportStatus::OK:
          UNREACHABLE();
          break;
        case WebCryptoKeyExportStatus::INVALID_KEY_TYPE:
          errors->Insert(NodeCryptoError::INVALID_KEY_TYPE);
          break;
        case WebCryptoKeyExportStatus::FAILED:
          errors->Insert(NodeCryptoError::CIPHER_JOB_FAILED);
          break;
      }
    }
  }

  v8::Maybe<bool> ToResult(
      v8::Local<v8::Value>* err,
      v8::Local<v8::Value>* result) override {
    Environment* env = AsyncWrap::env();
    CryptoErrorStore* errors = CryptoJob<KeyExportTraits>::errors();
    if (out_.size() > 0) {
      CHECK(errors->Empty());
      *err = v8::Undefined(env->isolate());
      *result = out_.ToArrayBuffer(env);
      return v8::Just(!result->IsEmpty());
    }

    if (errors->Empty())
      errors->Capture();
    CHECK(!errors->Empty());
    *result = v8::Undefined(env->isolate());
    return v8::Just(errors->ToException(env).ToLocal(err));
  }

  SET_SELF_SIZE(KeyExportJob)
  void MemoryInfo(MemoryTracker* tracker) const override {
    tracker->TrackFieldWithSize("out", out_.size());
    CryptoJob<KeyExportTraits>::MemoryInfo(tracker);
  }

 private:
  std::shared_ptr<KeyObjectData> key_;
  WebCryptoKeyFormat format_;
  ByteSource out_;
};

WebCryptoKeyExportStatus PKEY_SPKI_Export(
    KeyObjectData* key_data,
    ByteSource* out);

WebCryptoKeyExportStatus PKEY_PKCS8_Export(
    KeyObjectData* key_data,
    ByteSource* out);

namespace Keys {
void Initialize(Environment* env, v8::Local<v8::Object> target);
void RegisterExternalReferences(ExternalReferenceRegistry* registry);
}  // namespace Keys

}  // namespace crypto
}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif  // SRC_CRYPTO_CRYPTO_KEYS_H_


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#ifndef SRC_CRYPTO_CRYPTO_KEYS_H_
2			#define SRC_CRYPTO_CRYPTO_KEYS_H_
3
4			#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
5
6			#include "crypto/crypto_util.h"
7			#include "base_object.h"
8			#include "env.h"
9			#include "memory_tracker.h"
10			#include "node_buffer.h"
11			#include "node_worker.h"
12			#include "v8.h"
13
14			#include <openssl/evp.h>
15
16			#include <memory>
17			#include <string>
18
19			namespace node {
20			namespace crypto {
21			enum PKEncodingType {
22			// RSAPublicKey / RSAPrivateKey according to PKCS#1.
23			kKeyEncodingPKCS1,
24			// PrivateKeyInfo or EncryptedPrivateKeyInfo according to PKCS#8.
25			kKeyEncodingPKCS8,
26			// SubjectPublicKeyInfo according to X.509.
27			kKeyEncodingSPKI,
28			// ECPrivateKey according to SEC1.
29			kKeyEncodingSEC1
30			};
31
32			enum PKFormatType {
33			kKeyFormatDER,
34			kKeyFormatPEM,
35			kKeyFormatJWK
36			};
37
38			enum KeyType {
39			kKeyTypeSecret,
40			kKeyTypePublic,
41			kKeyTypePrivate
42			};
43
44			enum KeyEncodingContext {
45			kKeyContextInput,
46			kKeyContextExport,
47			kKeyContextGenerate
48			};
49
50			enum class ParseKeyResult {
51			kParseKeyOk,
52			kParseKeyNotRecognized,
53			kParseKeyNeedPassphrase,
54			kParseKeyFailed
55			};
56
57			struct AsymmetricKeyEncodingConfig {
58			bool output_key_object_ = false;
59			PKFormatType format_ = kKeyFormatDER;
60			v8::Maybe<PKEncodingType> type_ = v8::Nothing<PKEncodingType>();
61			};
62
63			using PublicKeyEncodingConfig = AsymmetricKeyEncodingConfig;
64
65			struct PrivateKeyEncodingConfig : public AsymmetricKeyEncodingConfig {
66			const EVP_CIPHER* cipher_;
67			// The ByteSource alone is not enough to distinguish between "no passphrase"
68			// and a zero-length passphrase (which can be a null pointer), therefore, we
69			// use a NonCopyableMaybe.
70			NonCopyableMaybe<ByteSource> passphrase_;
71			};
72
73			// This uses the built-in reference counter of OpenSSL to manage an EVP_PKEY
74			// which is slightly more efficient than using a shared pointer and easier to
75			// use.
76			class ManagedEVPPKey : public MemoryRetainer {
77			public:
78		8372	ManagedEVPPKey() : mutex_(std::make_shared<Mutex>()) {}
79			explicit ManagedEVPPKey(EVPKeyPointer&& pkey);
80			ManagedEVPPKey(const ManagedEVPPKey& that);
81			ManagedEVPPKey& operator=(const ManagedEVPPKey& that);
82
83			operator bool() const;
84			EVP_PKEY* get() const;
85			Mutex* mutex() const;
86
87			void MemoryInfo(MemoryTracker* tracker) const override;
88			SET_MEMORY_INFO_NAME(ManagedEVPPKey)
89			SET_SELF_SIZE(ManagedEVPPKey)
90
91			static PublicKeyEncodingConfig GetPublicKeyEncodingFromJs(
92			const v8::FunctionCallbackInfo<v8::Value>& args,
93			unsigned int* offset,
94			KeyEncodingContext context);
95
96			static NonCopyableMaybe<PrivateKeyEncodingConfig> GetPrivateKeyEncodingFromJs(
97			const v8::FunctionCallbackInfo<v8::Value>& args,
98			unsigned int* offset,
99			KeyEncodingContext context);
100
101			static ManagedEVPPKey GetParsedKey(Environment* env,
102			EVPKeyPointer&& pkey,
103			ParseKeyResult ret,
104			const char* default_msg);
105
106			static ManagedEVPPKey GetPublicOrPrivateKeyFromJs(
107			const v8::FunctionCallbackInfo<v8::Value>& args,
108			unsigned int* offset);
109
110			static ManagedEVPPKey GetPrivateKeyFromJs(
111			const v8::FunctionCallbackInfo<v8::Value>& args,
112			unsigned int* offset,
113			bool allow_key_object);
114
115			static v8::Maybe<bool> ToEncodedPublicKey(
116			Environment* env,
117			ManagedEVPPKey key,
118			const PublicKeyEncodingConfig& config,
119			v8::Local<v8::Value>* out);
120
121			static v8::Maybe<bool> ToEncodedPrivateKey(
122			Environment* env,
123			ManagedEVPPKey key,
124			const PrivateKeyEncodingConfig& config,
125			v8::Local<v8::Value>* out);
126
127			private:
128			size_t size_of_private_key() const;
129			size_t size_of_public_key() const;
130
131			EVPKeyPointer pkey_;
132			std::shared_ptr<Mutex> mutex_;
133			};
134
135			// Objects of this class can safely be shared among threads.
136			class KeyObjectData : public MemoryRetainer {
137			public:
138			static std::shared_ptr<KeyObjectData> CreateSecret(ByteSource key);
139
140			static std::shared_ptr<KeyObjectData> CreateAsymmetric(
141			KeyType type,
142			const ManagedEVPPKey& pkey);
143
144			KeyType GetKeyType() const;
145
146			// These functions allow unprotected access to the raw key material and should
147			// only be used to implement cryptographic operations requiring the key.
148			ManagedEVPPKey GetAsymmetricKey() const;
149			const char* GetSymmetricKey() const;
150			size_t GetSymmetricKeySize() const;
151
152			void MemoryInfo(MemoryTracker* tracker) const override;
153			SET_MEMORY_INFO_NAME(KeyObjectData)
154			SET_SELF_SIZE(KeyObjectData)
155
156			private:
157			explicit KeyObjectData(ByteSource symmetric_key);
158
159			KeyObjectData(
160			KeyType type,
161			const ManagedEVPPKey& pkey);
162
163			const KeyType key_type_;
164			const ByteSource symmetric_key_;
165			const unsigned int symmetric_key_len_;
166			const ManagedEVPPKey asymmetric_key_;
167			};
168
169			class KeyObjectHandle : public BaseObject {
170			public:
171			static v8::Local<v8::Function> Initialize(Environment* env);
172			static void RegisterExternalReferences(ExternalReferenceRegistry* registry);
173
174			static v8::MaybeLocal<v8::Object> Create(Environment* env,
175			std::shared_ptr<KeyObjectData> data);
176
177			// TODO(tniessen): track the memory used by OpenSSL types
178			SET_NO_MEMORY_INFO()
179			SET_MEMORY_INFO_NAME(KeyObjectHandle)
180			SET_SELF_SIZE(KeyObjectHandle)
181
182			const std::shared_ptr<KeyObjectData>& Data();
183
184			protected:
185			static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
186
187			static void Init(const v8::FunctionCallbackInfo<v8::Value>& args);
188			static void InitECRaw(const v8::FunctionCallbackInfo<v8::Value>& args);
189			static void InitEDRaw(const v8::FunctionCallbackInfo<v8::Value>& args);
190			static void InitJWK(const v8::FunctionCallbackInfo<v8::Value>& args);
191			static void GetKeyDetail(const v8::FunctionCallbackInfo<v8::Value>& args);
192			static void Equals(const v8::FunctionCallbackInfo<v8::Value>& args);
193
194			static void ExportJWK(const v8::FunctionCallbackInfo<v8::Value>& args);
195
196			static void GetAsymmetricKeyType(
197			const v8::FunctionCallbackInfo<v8::Value>& args);
198			v8::Local<v8::Value> GetAsymmetricKeyType() const;
199
200			static void GetSymmetricKeySize(
201			const v8::FunctionCallbackInfo<v8::Value>& args);
202
203			static void Export(const v8::FunctionCallbackInfo<v8::Value>& args);
204
205			v8::MaybeLocal<v8::Value> ExportSecretKey() const;
206			v8::MaybeLocal<v8::Value> ExportPublicKey(
207			const PublicKeyEncodingConfig& config) const;
208			v8::MaybeLocal<v8::Value> ExportPrivateKey(
209			const PrivateKeyEncodingConfig& config) const;
210
211			KeyObjectHandle(Environment* env,
212			v8::Local<v8::Object> wrap);
213
214			private:
215			std::shared_ptr<KeyObjectData> data_;
216			};
217
218			class NativeKeyObject : public BaseObject {
219			public:
220			static void Initialize(Environment* env, v8::Local<v8::Object> target);
221			static void RegisterExternalReferences(ExternalReferenceRegistry* registry);
222
223			static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
224			static void CreateNativeKeyObjectClass(
225			const v8::FunctionCallbackInfo<v8::Value>& args);
226
227			SET_NO_MEMORY_INFO()
228			SET_MEMORY_INFO_NAME(NativeKeyObject)
229			SET_SELF_SIZE(NativeKeyObject)
230
231			class KeyObjectTransferData : public worker::TransferData {
232			public:
233		11	explicit KeyObjectTransferData(const std::shared_ptr<KeyObjectData>& data)
234		11	: data_(data) {}
235
236			BaseObjectPtr<BaseObject> Deserialize(
237			Environment* env,
238			v8::Local<v8::Context> context,
239			std::unique_ptr<worker::TransferData> self) override;
240
241			SET_MEMORY_INFO_NAME(KeyObjectTransferData)
242			SET_SELF_SIZE(KeyObjectTransferData)
243			SET_NO_MEMORY_INFO()
244
245			private:
246			std::shared_ptr<KeyObjectData> data_;
247			};
248
249			BaseObject::TransferMode GetTransferMode() const override;
250			std::unique_ptr<worker::TransferData> CloneForMessaging() const override;
251
252			private:
253		4893	NativeKeyObject(Environment* env,
254			v8::Local<v8::Object> wrap,
255			const std::shared_ptr<KeyObjectData>& handle_data)
256		4893	: BaseObject(env, wrap),
257		4893	handle_data_(handle_data) {
258		4893	MakeWeak();
259		4893	}
260
261			std::shared_ptr<KeyObjectData> handle_data_;
262			};
263
264			enum WebCryptoKeyFormat {
265			kWebCryptoKeyFormatRaw,
266			kWebCryptoKeyFormatPKCS8,
267			kWebCryptoKeyFormatSPKI,
268			kWebCryptoKeyFormatJWK
269			};
270
271			enum class WebCryptoKeyExportStatus {
272			OK,
273			INVALID_KEY_TYPE,
274			FAILED
275			};
276
277			template <typename KeyExportTraits>
278			class KeyExportJob final : public CryptoJob<KeyExportTraits> {
279			public:
280			using AdditionalParams = typename KeyExportTraits::AdditionalParameters;
281
282		510	static void New(const v8::FunctionCallbackInfo<v8::Value>& args) {
283		510	Environment* env = Environment::GetCurrent(args);
284	✗✓	510	CHECK(args.IsConstructCall());
285
286		510	CryptoJobMode mode = GetCryptoJobMode(args[0]);
287
288	✗✓	510	CHECK(args[1]->IsUint32()); // Export Type
289	✗✓	510	CHECK(args[2]->IsObject()); // KeyObject
290
291			WebCryptoKeyFormat format =
292	✓✗	1020	static_cast<WebCryptoKeyFormat>(args[1].As<v8::Uint32>()->Value());
293
294			KeyObjectHandle* key;
295	✗✓	510	ASSIGN_OR_RETURN_UNWRAP(&key, args[2]);
296
297	✗✓	510	CHECK_NOT_NULL(key);
298
299		510	AdditionalParams params;
300	✗✓	1020	if (KeyExportTraits::AdditionalConfig(args, 3, &params).IsNothing()) {
301			// The KeyExportTraits::AdditionalConfig is responsible for
302			// calling an appropriate THROW_CRYPTO_* variant reporting
303			// whatever error caused initialization to fail.
304			return;
305			}
306
307		1020	new KeyExportJob<KeyExportTraits>(
308			env,
309		1020	args.This(),
310			mode,
311			key->Data(),
312			format,
313		510	std::move(params));
314			}
315
316		3376	static void Initialize(
317			Environment* env,
318			v8::Local<v8::Object> target) {
319		3376	CryptoJob<KeyExportTraits>::Initialize(New, env, target);
320		3376	}
321
322		20444	static void RegisterExternalReferences(ExternalReferenceRegistry* registry) {
323		20444	CryptoJob<KeyExportTraits>::RegisterExternalReferences(New, registry);
324		20444	}
325
326		510	KeyExportJob(
327			Environment* env,
328			v8::Local<v8::Object> object,
329			CryptoJobMode mode,
330			std::shared_ptr<KeyObjectData> key,
331			WebCryptoKeyFormat format,
332			AdditionalParams&& params)
333			: CryptoJob<KeyExportTraits>(
334			env,
335			object,
336			AsyncWrap::PROVIDER_KEYEXPORTREQUEST,
337			mode,
338		510	std::move(params)),
339			key_(key),
340		510	format_(format) {}
341
342			WebCryptoKeyFormat format() const { return format_; }
343
344		510	void DoThreadPoolWork() override {
345			const WebCryptoKeyExportStatus status =
346		510	KeyExportTraits::DoExport(
347		510	key_,
348			format_,
349		510	*CryptoJob<KeyExportTraits>::params(),
350			&out_);
351	✓✗	510	if (status == WebCryptoKeyExportStatus::OK) {
352			// Success!
353		510	return;
354			}
355			CryptoErrorStore* errors = CryptoJob<KeyExportTraits>::errors();
356			errors->Capture();
357			if (errors->Empty()) {
358			switch (status) {
359			case WebCryptoKeyExportStatus::OK:
360			UNREACHABLE();
361			break;
362			case WebCryptoKeyExportStatus::INVALID_KEY_TYPE:
363			errors->Insert(NodeCryptoError::INVALID_KEY_TYPE);
364			break;
365			case WebCryptoKeyExportStatus::FAILED:
366			errors->Insert(NodeCryptoError::CIPHER_JOB_FAILED);
367			break;
368			}
369			}
370			}
371
372		510	v8::Maybe<bool> ToResult(
373			v8::Local<v8::Value>* err,
374			v8::Local<v8::Value>* result) override {
375		510	Environment* env = AsyncWrap::env();
376		510	CryptoErrorStore* errors = CryptoJob<KeyExportTraits>::errors();
377	✓✗	510	if (out_.size() > 0) {
378	✗✓	510	CHECK(errors->Empty());
379		510	*err = v8::Undefined(env->isolate());
380		1020	*result = out_.ToArrayBuffer(env);
381		510	return v8::Just(!result->IsEmpty());
382			}
383
384			if (errors->Empty())
385			errors->Capture();
386			CHECK(!errors->Empty());
387			*result = v8::Undefined(env->isolate());
388			return v8::Just(errors->ToException(env).ToLocal(err));
389			}
390
391			SET_SELF_SIZE(KeyExportJob)
392			void MemoryInfo(MemoryTracker* tracker) const override {
393			tracker->TrackFieldWithSize("out", out_.size());
394			CryptoJob<KeyExportTraits>::MemoryInfo(tracker);
395			}
396
397			private:
398			std::shared_ptr<KeyObjectData> key_;
399			WebCryptoKeyFormat format_;
400			ByteSource out_;
401			};
402
403			WebCryptoKeyExportStatus PKEY_SPKI_Export(
404			KeyObjectData* key_data,
405			ByteSource* out);
406
407			WebCryptoKeyExportStatus PKEY_PKCS8_Export(
408			KeyObjectData* key_data,
409			ByteSource* out);
410
411			namespace Keys {
412			void Initialize(Environment* env, v8::Local<v8::Object> target);
413			void RegisterExternalReferences(ExternalReferenceRegistry* registry);
414			} // namespace Keys
415
416			} // namespace crypto
417			} // namespace node
418
419			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
420			#endif // SRC_CRYPTO_CRYPTO_KEYS_H_