From f6d6d579839460b349963d1348494870f4c129f0 Mon Sep 17 00:00:00 2001
From: Mike <github@barry.io>
Date: Sun, 18 Jan 2015 16:44:35 -0500
Subject: Create self signed cert if one does not exist

---
 .../Networking/CertificateGenerator.cs             | 88 ++++++++++++++++++++++
 .../Networking/NetworkManager.cs                   | 10 +++
 2 files changed, 98 insertions(+)
 create mode 100644 MediaBrowser.Server.Mono/Networking/CertificateGenerator.cs

(limited to 'MediaBrowser.Server.Mono/Networking')

diff --git a/MediaBrowser.Server.Mono/Networking/CertificateGenerator.cs b/MediaBrowser.Server.Mono/Networking/CertificateGenerator.cs
new file mode 100644
index 0000000000..52909a5446
--- /dev/null
+++ b/MediaBrowser.Server.Mono/Networking/CertificateGenerator.cs
@@ -0,0 +1,88 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+using MediaBrowser.Model.Logging;
+using Mono.Security.X509;
+
+namespace MediaBrowser.Server.Mono.Networking
+{
+    internal class CertificateGenerator
+    {
+        private const string MonoTestRootAgency = "<RSAKeyValue><Modulus>v/4nALBxCE+9JgEC0LnDUvKh6e96PwTpN4Rj+vWnqKT7IAp1iK/JjuqvAg6DQ2vTfv0dTlqffmHH51OyioprcT5nzxcSTsZb/9jcHScG0s3/FRIWnXeLk/fgm7mSYhjUaHNI0m1/NTTktipicjKxo71hGIg9qucCWnDum+Krh/k=</Modulus><Exponent>AQAB</Exponent><P>9jbKxMXEruW2CfZrzhxtull4O8P47+mNsEL+9gf9QsRO1jJ77C+jmzfU6zbzjf8+ViK+q62tCMdC1ZzulwdpXQ==</P><Q>x5+p198l1PkK0Ga2mRh0SIYSykENpY2aLXoyZD/iUpKYAvATm0/wvKNrE4dKJyPCA+y3hfTdgVag+SP9avvDTQ==</Q><DP>ISSjCvXsUfbOGG05eddN1gXxL2pj+jegQRfjpk7RAsnWKvNExzhqd5x+ZuNQyc6QH5wxun54inP4RTUI0P/IaQ==</DP><DQ>R815VQmR3RIbPqzDXzv5j6CSH6fYlcTiQRtkBsUnzhWmkd/y3XmamO+a8zJFjOCCx9CcjpVuGziivBqi65lVPQ==</DQ><InverseQ>iYiu0KwMWI/dyqN3RJYUzuuLj02/oTD1pYpwo2rvNCXU1Q5VscOeu2DpNg1gWqI+1RrRCsEoaTNzXB1xtKNlSw==</InverseQ><D>nIfh1LYF8fjRBgMdAH/zt9UKHWiaCnc+jXzq5tkR8HVSKTVdzitD8bl1JgAfFQD8VjSXiCJqluexy/B5SGrCXQ49c78NIQj0hD+J13Y8/E0fUbW1QYbhj6Ff7oHyhaYe1WOQfkp2t/h+llHOdt1HRf7bt7dUknYp7m8bQKGxoYE=</D></RSAKeyValue>";
+
+        internal static void CreateSelfSignCertificatePfx(
+            string fileName,
+            string hostname,
+            ILogger logger)
+        {
+            try
+            {
+                if (string.IsNullOrWhiteSpace(fileName))
+                {
+                    logger.Info("No certificate filename specified.");
+                    return;
+                }
+
+                if (File.Exists(fileName))
+                {
+                    logger.Info("Certificate file already exists. To regenerate, delete {0}", fileName);
+                    return;
+                }
+
+                byte[] sn = Guid.NewGuid().ToByteArray();
+                string subject = string.Format("CN={0}", hostname);
+                string issuer = subject;
+                DateTime notBefore = DateTime.Now.AddDays(-2);
+                DateTime notAfter = DateTime.Now.AddYears(10);
+
+                RSA issuerKey = RSA.Create();
+                issuerKey.FromXmlString(MonoTestRootAgency);
+                RSA subjectKey = RSA.Create();
+
+                // serial number MUST be positive
+                if ((sn[0] & 0x80) == 0x80)
+                    sn[0] -= 0x80;
+
+                issuer = subject;
+                issuerKey = subjectKey;
+
+                X509CertificateBuilder cb = new X509CertificateBuilder(3);
+                cb.SerialNumber = sn;
+                cb.IssuerName = issuer;
+                cb.NotBefore = notBefore;
+                cb.NotAfter = notAfter;
+                cb.SubjectName = subject;
+                cb.SubjectPublicKey = subjectKey;
+
+                // signature
+                cb.Hash = "SHA256";
+                byte[] rawcert = cb.Sign(issuerKey);
+
+                PKCS12 p12 = new PKCS12();
+
+
+                ArrayList list = new ArrayList();
+                // we use a fixed array to avoid endianess issues 
+                // (in case some tools requires the ID to be 1).
+                list.Add(new byte[4] {1, 0, 0, 0});
+                Hashtable attributes = new Hashtable(1);
+                attributes.Add(PKCS9.localKeyId, list);
+
+                p12.AddCertificate(new X509Certificate(rawcert), attributes);
+
+                p12.AddPkcs8ShroudedKeyBag(subjectKey, attributes);
+                p12.SaveToFile(fileName);
+            }
+            catch (Exception e)
+            {
+                logger.ErrorException("Error generating self signed ssl certificate: {0}", e, fileName);
+            }
+
+        }
+    }
+}
diff --git a/MediaBrowser.Server.Mono/Networking/NetworkManager.cs b/MediaBrowser.Server.Mono/Networking/NetworkManager.cs
index 60c2501157..b4133f6dd6 100644
--- a/MediaBrowser.Server.Mono/Networking/NetworkManager.cs
+++ b/MediaBrowser.Server.Mono/Networking/NetworkManager.cs
@@ -35,5 +35,15 @@ namespace MediaBrowser.Server.Mono.Networking
         {
 			return new List<FileSystemEntryInfo> ();
         }
+
+        /// <summary>
+        /// Generates a self signed certificate at the locatation specified by <paramref name="certificatePath"/>.
+        /// </summary>
+        /// <param name="certificatePath">The path to generate the certificate.</param>
+        /// <param name="hostname">The common name for the certificate.</param>
+        public void GenerateSelfSignedSslCertificate(string certificatePath, string hostname)
+        {
+            CertificateGenerator.CreateSelfSignCertificatePfx(certificatePath, hostname, Logger);
+        }
     }
 }
-- 
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