Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 142 insertions, 0 deletions

diff --git a/third_party/libwebrtc/rtc_base/ssl_certificate.h b/third_party/libwebrtc/rtc_base/ssl_certificate.h
new file mode 100644
index 0000000000..2e198800c4
--- /dev/null
+++ b/third_party/libwebrtc/rtc_base/ssl_certificate.h
@@ -0,0 +1,142 @@
+/*
+ *  Copyright 2018 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.
+ */
+
+// Generic interface for SSL Certificates, used in both the SSLAdapter
+// for TLS TURN connections and the SSLStreamAdapter for DTLS Peer to Peer
+// Connections for SRTP Key negotiation and SCTP encryption.
+
+#ifndef RTC_BASE_SSL_CERTIFICATE_H_
+#define RTC_BASE_SSL_CERTIFICATE_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "absl/strings/string_view.h"
+#include "rtc_base/buffer.h"
+#include "rtc_base/system/rtc_export.h"
+
+namespace rtc {
+
+struct RTC_EXPORT SSLCertificateStats {
+  SSLCertificateStats(std::string&& fingerprint,
+                      std::string&& fingerprint_algorithm,
+                      std::string&& base64_certificate,
+                      std::unique_ptr<SSLCertificateStats> issuer);
+  ~SSLCertificateStats();
+  std::string fingerprint;
+  std::string fingerprint_algorithm;
+  std::string base64_certificate;
+  std::unique_ptr<SSLCertificateStats> issuer;
+
+  std::unique_ptr<SSLCertificateStats> Copy() const;
+};
+
+// Abstract interface overridden by SSL library specific
+// implementations.
+
+// A somewhat opaque type used to encapsulate a certificate.
+// Wraps the SSL library's notion of a certificate, with reference counting.
+// The SSLCertificate object is pretty much immutable once created.
+// (The OpenSSL implementation only does reference counting and
+// possibly caching of intermediate results.)
+class RTC_EXPORT SSLCertificate {
+ public:
+  // Parses and builds a certificate from a PEM encoded string.
+  // Returns null on failure.
+  // The length of the string representation of the certificate is
+  // stored in *pem_length if it is non-null, and only if
+  // parsing was successful.
+  static std::unique_ptr<SSLCertificate> FromPEMString(
+      absl::string_view pem_string);
+  virtual ~SSLCertificate() = default;
+
+  // Returns a new SSLCertificate object instance wrapping the same
+  // underlying certificate, including its chain if present.
+  virtual std::unique_ptr<SSLCertificate> Clone() const = 0;
+
+  // Returns a PEM encoded string representation of the certificate.
+  virtual std::string ToPEMString() const = 0;
+
+  // Provides a DER encoded binary representation of the certificate.
+  virtual void ToDER(Buffer* der_buffer) const = 0;
+
+  // Gets the name of the digest algorithm that was used to compute this
+  // certificate's signature.
+  virtual bool GetSignatureDigestAlgorithm(std::string* algorithm) const = 0;
+
+  // Compute the digest of the certificate given algorithm
+  virtual bool ComputeDigest(absl::string_view algorithm,
+                             unsigned char* digest,
+                             size_t size,
+                             size_t* length) const = 0;
+
+  // Returns the time in seconds relative to epoch, 1970-01-01T00:00:00Z (UTC),
+  // or -1 if an expiration time could not be retrieved.
+  virtual int64_t CertificateExpirationTime() const = 0;
+
+  // Gets information (fingerprint, etc.) about this certificate. This is used
+  // for certificate stats, see
+  // https://w3c.github.io/webrtc-stats/#certificatestats-dict*.
+  std::unique_ptr<SSLCertificateStats> GetStats() const;
+};
+
+// SSLCertChain is a simple wrapper for a vector of SSLCertificates. It serves
+// primarily to ensure proper memory management (especially deletion) of the
+// SSLCertificate pointers.
+class RTC_EXPORT SSLCertChain final {
+ public:
+  explicit SSLCertChain(std::unique_ptr<SSLCertificate> single_cert);
+  explicit SSLCertChain(std::vector<std::unique_ptr<SSLCertificate>> certs);
+  // Allow move semantics for the object.
+  SSLCertChain(SSLCertChain&&);
+  SSLCertChain& operator=(SSLCertChain&&);
+
+  ~SSLCertChain();
+
+  SSLCertChain(const SSLCertChain&) = delete;
+  SSLCertChain& operator=(const SSLCertChain&) = delete;
+
+  // Vector access methods.
+  size_t GetSize() const { return certs_.size(); }
+
+  // Returns a temporary reference, only valid until the chain is destroyed.
+  const SSLCertificate& Get(size_t pos) const { return *(certs_[pos]); }
+
+  // Returns a new SSLCertChain object instance wrapping the same underlying
+  // certificate chain.
+  std::unique_ptr<SSLCertChain> Clone() const;
+
+  // Gets information (fingerprint, etc.) about this certificate chain. This is
+  // used for certificate stats, see
+  // https://w3c.github.io/webrtc-stats/#certificatestats-dict*.
+  std::unique_ptr<SSLCertificateStats> GetStats() const;
+
+ private:
+  std::vector<std::unique_ptr<SSLCertificate>> certs_;
+};
+
+// SSLCertificateVerifier provides a simple interface to allow third parties to
+// define their own certificate verification code. It is completely independent
+// from the underlying SSL implementation.
+class SSLCertificateVerifier {
+ public:
+  virtual ~SSLCertificateVerifier() = default;
+  // Returns true if the certificate is valid, else false. It is up to the
+  // implementer to define what a valid certificate looks like.
+  virtual bool Verify(const SSLCertificate& certificate) = 0;
+};
+
+}  // namespace rtc
+
+#endif  // RTC_BASE_SSL_CERTIFICATE_H_