Key ring can now be saved/loaded from files

tests/profile/testSave.cs

@@ -0,0 +1,80 @@
+using NUnit.Framework;
+using chestcrypto.identity;
+using chestcrypto;
+using chestcrypto.profile;
+using keyring;
+using System;
+using System.IO;
+using System.Linq;
+using System.Collections.Generic;
+using System.Globalization;
+using Sodium;
+using SimpleBase;
+
+namespace testProfileSave
+{
+    public class Tests
+    {
+        [SetUp]
+        public void Setup()
+        {
+        }
+
+        [Test]
+        public void TestSaveMany(){
+            var temp = Path.GetTempPath();
+            List<PublicIdentity> pub = new List<PublicIdentity>();
+            List<PrivateIdentity> priva = new List<PrivateIdentity>();
+            KeyRing ring = new KeyRing();
+            DoublePublicKey key;
+            DoublePrivateKey privKey;
+            PublicIdentity iden;
+            PrivateIdentity priv;
+
+            var publicProfile = temp + "/public.keyring.csv";
+            var privateProfile = temp + "/private.keyring.csv";
+            string[] names = {"bob", "kevin", "sam", "joe", "sarah sara"};
+            for (int i = 0; i < 5; i++){
+                key = new DoublePublicKey(PublicKeyAuth.GenerateKeyPair().PublicKey, PublicKeyBox.GenerateKeyPair().PublicKey);
+                iden = new PublicIdentity(key, names[i]);
+                pub.Add(iden);
+                ring.addPublicIdentity(iden);
+            }
+
+            for (int i = 0; i < 5; i++){
+                privKey = new DoublePrivateKey(PublicKeyAuth.GenerateKeyPair().PrivateKey, PublicKeyBox.GenerateKeyPair().PrivateKey);
+                priv = new PrivateIdentity(privKey, names[i]);
+                priva.Add(priv);
+                ring.addPrivateIdentity(priv);
+            }
+
+            KeyRingSave saver = new KeyRingSave(temp);
+            saver.save(ring);
+
+            string data = System.IO.File.ReadAllText(publicProfile);
+
+            foreach(string name in names){
+                Assert.IsTrue(data.Contains(name));
+            }
+            foreach(PublicIdentity id in pub){
+                if (! data.Contains(id.getEncodedKey())){
+                    Assert.Fail();
+                }
+                if (! names.Contains(id.getName())){
+                    Assert.Fail();
+                }
+            }
+            data = System.IO.File.ReadAllText(privateProfile);
+            foreach(PrivateIdentity id in priva){
+                if (! data.Contains(id.getEncodedKey())){
+                    Assert.Fail();
+                }
+                if (! names.Contains(id.getName())){
+                    Assert.Fail();
+                }
+            }
+            File.Delete(privateProfile);
+            File.Delete(publicProfile);
+        }
+    }
+}

tests/tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
@@ -12,8 +12,8 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
   </ItemGroup>
 
-  <ItemGroup>
-    <ProjectReference Include="..\treasurechest\treasurechest.csproj" />
+  <ItemGroup>
+    <ProjectReference Include="..\treasurechest\treasurechest.csproj" />
   </ItemGroup>
 
 </Project>

treasurechest/profile/restoreKeyring.cs

@@ -1,6 +1,4 @@
 using System.IO;
-using System.Collections.Generic;
-using System;
 using keyring;
 using chestcrypto.identity;
 

treasurechest/profile/saveKeyring.cs

@@ -0,0 +1,47 @@
+using System.IO;
+using keyring;
+using chestcrypto.identity;
+
+namespace chestcrypto.profile{
+
+    public class KeyRingSave{
+
+        private string profileDir;
+        private string privateProfile;
+        private string publicProfile;
+
+        public KeyRingSave(string profileDirectory){
+            profileDir = profileDirectory;
+
+            if (! Directory.Exists(profileDir)){
+                Directory.CreateDirectory(profileDir); // Does not error if it exists already
+            }
+            privateProfile = profileDir + "/private.keyring.csv";
+            publicProfile = profileDir + "/public.keyring.csv";
+        }
+
+        public void save(KeyRing ring){
+            string header = "base85Key,name,note";
+
+
+            using (System.IO.StreamWriter file =
+                new System.IO.StreamWriter(privateProfile, false))
+            {
+                foreach(PrivateIdentity iden in ring.privateIdentities){
+                    file.Write(header + "\r\n" + iden.getEncodedKey() + "," + iden.name + "," + iden.getNote() + "\r\n");
+                }
+            }
+            
+            using (System.IO.StreamWriter file =
+                new System.IO.StreamWriter(publicProfile, false))
+            {
+                foreach(PublicIdentity iden in ring.publicIdentities){
+                    file.Write(header + "\r\n" + iden.getEncodedKey() + "," + iden.name + "," + iden.getNote() + "\r\n");
+                }
+            }
+
+        }
+
+    }
+
+}