Moving src/webrtc into src/.

In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}

rtc_base/opensslidentity.h

@@ -0,0 +1,147 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_RTC_BASE_OPENSSLIDENTITY_H_
+#define WEBRTC_RTC_BASE_OPENSSLIDENTITY_H_
+
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+
+#include <memory>
+#include <string>
+
+#include "webrtc/rtc_base/checks.h"
+#include "webrtc/rtc_base/constructormagic.h"
+#include "webrtc/rtc_base/sslidentity.h"
+
+typedef struct ssl_ctx_st SSL_CTX;
+
+namespace rtc {
+
+// OpenSSLKeyPair encapsulates an OpenSSL EVP_PKEY* keypair object,
+// which is reference counted inside the OpenSSL library.
+class OpenSSLKeyPair {
+ public:
+  explicit OpenSSLKeyPair(EVP_PKEY* pkey) : pkey_(pkey) {
+    RTC_DCHECK(pkey_ != nullptr);
+  }
+
+  static OpenSSLKeyPair* Generate(const KeyParams& key_params);
+  // Constructs a key pair from the private key PEM string. This must not result
+  // in missing public key parameters. Returns null on error.
+  static OpenSSLKeyPair* FromPrivateKeyPEMString(
+      const std::string& pem_string);
+
+  virtual ~OpenSSLKeyPair();
+
+  virtual OpenSSLKeyPair* GetReference();
+
+  EVP_PKEY* pkey() const { return pkey_; }
+  std::string PrivateKeyToPEMString() const;
+  std::string PublicKeyToPEMString() const;
+  bool operator==(const OpenSSLKeyPair& other) const;
+  bool operator!=(const OpenSSLKeyPair& other) const;
+
+ private:
+  void AddReference();
+
+  EVP_PKEY* pkey_;
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLKeyPair);
+};
+
+// OpenSSLCertificate encapsulates an OpenSSL X509* certificate object,
+// which is also reference counted inside the OpenSSL library.
+class OpenSSLCertificate : public SSLCertificate {
+ public:
+  // Caller retains ownership of the X509 object.
+  explicit OpenSSLCertificate(X509* x509) : x509_(x509) {
+    AddReference();
+  }
+
+  static OpenSSLCertificate* Generate(OpenSSLKeyPair* key_pair,
+                                      const SSLIdentityParams& params);
+  static OpenSSLCertificate* FromPEMString(const std::string& pem_string);
+
+  ~OpenSSLCertificate() override;
+
+  OpenSSLCertificate* GetReference() const override;
+
+  X509* x509() const { return x509_; }
+
+  std::string ToPEMString() const override;
+  void ToDER(Buffer* der_buffer) const override;
+  bool operator==(const OpenSSLCertificate& other) const;
+  bool operator!=(const OpenSSLCertificate& other) const;
+
+  // Compute the digest of the certificate given algorithm
+  bool ComputeDigest(const std::string& algorithm,
+                     unsigned char* digest,
+                     size_t size,
+                     size_t* length) const override;
+
+  // Compute the digest of a certificate as an X509 *
+  static bool ComputeDigest(const X509* x509,
+                            const std::string& algorithm,
+                            unsigned char* digest,
+                            size_t size,
+                            size_t* length);
+
+  bool GetSignatureDigestAlgorithm(std::string* algorithm) const override;
+  std::unique_ptr<SSLCertChain> GetChain() const override;
+
+  int64_t CertificateExpirationTime() const override;
+
+ private:
+  void AddReference() const;
+
+  X509* x509_;
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLCertificate);
+};
+
+// Holds a keypair and certificate together, and a method to generate
+// them consistently.
+class OpenSSLIdentity : public SSLIdentity {
+ public:
+  static OpenSSLIdentity* GenerateWithExpiration(const std::string& common_name,
+                                                 const KeyParams& key_params,
+                                                 time_t certificate_lifetime);
+  static OpenSSLIdentity* GenerateForTest(const SSLIdentityParams& params);
+  static SSLIdentity* FromPEMStrings(const std::string& private_key,
+                                     const std::string& certificate);
+  ~OpenSSLIdentity() override;
+
+  const OpenSSLCertificate& certificate() const override;
+  OpenSSLIdentity* GetReference() const override;
+
+  // Configure an SSL context object to use our key and certificate.
+  bool ConfigureIdentity(SSL_CTX* ctx);
+
+  std::string PrivateKeyToPEMString() const override;
+  std::string PublicKeyToPEMString() const override;
+  bool operator==(const OpenSSLIdentity& other) const;
+  bool operator!=(const OpenSSLIdentity& other) const;
+
+ private:
+  OpenSSLIdentity(OpenSSLKeyPair* key_pair, OpenSSLCertificate* certificate);
+
+  static OpenSSLIdentity* GenerateInternal(const SSLIdentityParams& params);
+
+  std::unique_ptr<OpenSSLKeyPair> key_pair_;
+  std::unique_ptr<OpenSSLCertificate> certificate_;
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLIdentity);
+};
+
+
+}  // namespace rtc
+
+#endif  // WEBRTC_RTC_BASE_OPENSSLIDENTITY_H_