X-Git-Url: http://plrg.eecs.uci.edu/git/?p=folly.git;a=blobdiff_plain;f=folly%2Fssl%2FOpenSSLCertUtils.cpp;h=ac7cd7414f2159e68be9ce587e0624080cd9aa2e;hp=d45daa6d2aef34e5b2638df47883f3249baa1fe5;hb=192d78d40551ec5d9aade5ca72dd6e33ad700a2b;hpb=ba690cad3c4138fce4e55b319237bb9e01ca030f

diff --git a/folly/ssl/OpenSSLCertUtils.cpp b/folly/ssl/OpenSSLCertUtils.cpp
index d45daa6d..ac7cd741 100644
--- a/folly/ssl/OpenSSLCertUtils.cpp
+++ b/folly/ssl/OpenSSLCertUtils.cpp
@@ -196,5 +196,50 @@ std::unique_ptr<IOBuf> OpenSSLCertUtils::derEncode(X509& x509) {
   buf->append(len);
   return buf;
 }
-} // ssl
-} // folly
+
+std::vector<X509UniquePtr> OpenSSLCertUtils::readCertsFromBuffer(
+    ByteRange range) {
+  BioUniquePtr b(
+      BIO_new_mem_buf(const_cast<unsigned char*>(range.data()), range.size()));
+  if (!b) {
+    throw std::runtime_error("failed to create BIO");
+  }
+  std::vector<X509UniquePtr> certs;
+  while (true) {
+    X509UniquePtr x509(PEM_read_bio_X509(b.get(), nullptr, nullptr, nullptr));
+    if (!x509) {
+      break;
+    }
+    certs.push_back(std::move(x509));
+  }
+
+  return certs;
+}
+
+std::array<uint8_t, SHA_DIGEST_LENGTH> OpenSSLCertUtils::getDigestSha1(
+    X509& x509) {
+  unsigned int len;
+  std::array<uint8_t, SHA_DIGEST_LENGTH> md;
+  int rc = X509_digest(&x509, EVP_sha1(), md.data(), &len);
+
+  if (rc <= 0) {
+    throw std::runtime_error("Could not calculate SHA1 digest for cert");
+  }
+  return md;
+}
+
+std::array<uint8_t, SHA256_DIGEST_LENGTH> OpenSSLCertUtils::getDigestSha256(
+    X509& x509) {
+  unsigned int len;
+  std::array<uint8_t, SHA256_DIGEST_LENGTH> md;
+  int rc = X509_digest(&x509, EVP_sha256(), md.data(), &len);
+
+  if (rc <= 0) {
+    throw std::runtime_error("Could not calculate SHA256 digest for cert");
+  }
+  return md;
+}
+
+
+} // namespace ssl
+} // namespace folly