Porting SecureSocket to use BoringSSL on OSX

runtime/bin/security_context.h

Index: runtime/bin/security_context.h
diff --git a/runtime/bin/security_context.h b/runtime/bin/security_context.h
new file mode 100644
index 0000000000000000000000000000000000000000..306babcdbba49375ff68f6c6a37fe12a596456b9
--- /dev/null
+++ b/runtime/bin/security_context.h
@@ -0,0 +1,91 @@
+// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#ifndef RUNTIME_BIN_SECURITY_CONTEXT_H_
+#define RUNTIME_BIN_SECURITY_CONTEXT_H_
+
+#include <openssl/ssl.h>
+#include <openssl/x509.h>
+
+#include "bin/lockers.h"
+#include "bin/reference_counting.h"
+#include "bin/socket.h"
+
+namespace dart {
+namespace bin {
+
+// Forward declaration
+class SSLFilter;
+
+class SSLCertContext : public ReferenceCounted<SSLCertContext> {
+ public:
+  static const intptr_t kApproximateSize;
+  static const int kSecurityContextNativeFieldIndex = 0;
+  static const int kX509NativeFieldIndex = 0;
+
+  explicit SSLCertContext(SSL_CTX* context)
+      : ReferenceCounted(),
+        context_(context),
+        alpn_protocol_string_(NULL),
+        trust_builtin_(false) {}
+
+  ~SSLCertContext() {
+    SSL_CTX_free(context_);
+    if (alpn_protocol_string_ != NULL) {
+      free(alpn_protocol_string_);
+    }
+  }
+
+  static SSLCertContext* GetSecurityContext(Dart_NativeArguments args);
+  static const char* GetPasswordArgument(Dart_NativeArguments args,
+                                         intptr_t index);
+  static void SetAlpnProtocolList(Dart_Handle protocols_handle,
+                                  SSL* ssl,
+                                  SSLCertContext* context,
+                                  bool is_server);
+
+  void SetTrustedCertificatesBytes(Dart_Handle cert_bytes,
+                                   const char* password);
+
+  void SetClientAuthoritiesBytes(Dart_Handle client_authorities_bytes,
+                                 const char* password);
+
+  int UseCertificateChainBytes(Dart_Handle cert_chain_bytes,
+                               const char* password);
+
+  void TrustBuiltinRoots();
+
+  SSL_CTX* context() const { return context_; }
+
+  uint8_t* alpn_protocol_string() const { return alpn_protocol_string_; }
+
+  void set_alpn_protocol_string(uint8_t* protocol_string) {
+    if (alpn_protocol_string_ != NULL) {
+      free(alpn_protocol_string_);
+    }
+    alpn_protocol_string_ = protocol_string;
+  }
+
+  bool trust_builtin() const { return trust_builtin_; }
+
+  void set_trust_builtin(bool trust_builtin) { trust_builtin_ = trust_builtin; }
+
+  void RegisterCallbacks(SSLFilter* filter);
+
+ private:
+  void LoadRootCertFile(const char* file);
+  void LoadRootCertCache(const char* cache);
+
+  SSL_CTX* context_;
+  uint8_t* alpn_protocol_string_;
+
+  bool trust_builtin_;
+
+  DISALLOW_COPY_AND_ASSIGN(SSLCertContext);
+};
+
+}  // namespace bin
+}  // namespace dart
+
+#endif  // RUNTIME_BIN_SECURITY_CONTEXT_H_