From 60d6aa0510fdd9127da8db00444d17741df43aa2 Mon Sep 17 00:00:00 2001
From: Kevin Froman <beardog@mailbox.org>
Date: Wed, 23 Sep 2020 00:36:08 +0000
Subject: [PATCH] c# pow implementation work

---
 pow-csharp/onionrpow-cli/Program.cs |  2 +-
 pow-csharp/onionrpow/OnionrPow.cs   | 48 +++++++++++++++++++++++++----
 src/onionrproofs/subprocesspow.py   |  2 ++
 3 files changed, 45 insertions(+), 7 deletions(-)

diff --git a/pow-csharp/onionrpow-cli/Program.cs b/pow-csharp/onionrpow-cli/Program.cs
index 9529fdda..cea68c97 100644
--- a/pow-csharp/onionrpow-cli/Program.cs
+++ b/pow-csharp/onionrpow-cli/Program.cs
@@ -21,7 +21,7 @@ namespace onionrpow_cli
                     //stdout.Write(buffer, 0, bytes);
                     data.AddRange(buffer);
                 }
-                onionrpow.OnionrPow.compute(data.ToArray(), 1);
+                onionrpow.OnionrPow.compute(data.ToArray(), 2);
             }
         }
     }
diff --git a/pow-csharp/onionrpow/OnionrPow.cs b/pow-csharp/onionrpow/OnionrPow.cs
index 4dd6b8a2..fb992495 100644
--- a/pow-csharp/onionrpow/OnionrPow.cs
+++ b/pow-csharp/onionrpow/OnionrPow.cs
@@ -17,13 +17,12 @@ namespace onionrpow
         public string meta { get; set; }
         public string sig { get; set; }
         public string signer { get; set; }
+
+        public int n;
+        public int c;
         public int time;
 
-        private List<byte> data;
-
-        public void setData(List<byte> blockData){
-            this.data = blockData;
-        }
+        //public List<byte> data { get; set; }
 
     }
     public class OnionrPow
@@ -52,9 +51,46 @@ namespace onionrpow
                     counter += 1;
                 }
                 Block block = JsonConvert.DeserializeObject<Block>(Encoding.UTF8.GetString(metadataJson.ToArray()));
-                block.setData(justData);
+                block.n = new Random().Next(10000);
+                block.c = 0;
 
+                var justDataArray = justData.ToArray();
+                justData.Clear();
+                var encoded = new List<byte>();
+                int calculatedDifficulty = 0;
+
+                var nl = Encoding.UTF8.GetBytes("\n")[0];
+
+                while(true){
+                    encoded.Clear();
+                    encoded.AddRange(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(block)));
+                    // TODO keep nl and dataarray in
+                    encoded.Add(nl);
+                    encoded.AddRange(justDataArray);
+                    var encodedArray = encoded.ToArray();
+
+                    calculatedDifficulty = 0;
+
+                    foreach(char c in shaAlg.ComputeHash(encodedArray)){
+                        if (c == 0){
+                            calculatedDifficulty += 1;
+                            if (calculatedDifficulty == difficulty){
+                                Console.WriteLine(counter);
+                                Console.WriteLine(Encoding.UTF8.GetString(encodedArray));
+                                Console.WriteLine(BitConverter.ToString(shaAlg.ComputeHash(encodedArray)));
+
+                                goto powDone;
+                            }
+                        }
+                        else{
+                            break;
+                        }
+                    }
+
+                    block.c += 1;
+                }
             }
+            powDone:;
         }
         //b'{"meta":"{\\"ch\\":\\"global\\",\\"type\\":\\"brd\\"}","sig":"pR4qmKGGCdnyNyZRlhGfF9GC7bONCsEnY04lTfiVuTHexPJypOqmxe9iyDQQqdR+PB2gwWuNqGMs5O8\\/S\\/hsCA==","signer":"UO74AP5LGQFI7EJTN6NAVINIPU2XO2KA7CAS6KSWGWAY5XIB5SUA====","time":1600542238,"pow":300182}\nxcvxcvvxcxcv'
     }
diff --git a/src/onionrproofs/subprocesspow.py b/src/onionrproofs/subprocesspow.py
index 901f0ef4..8726bf1d 100755
--- a/src/onionrproofs/subprocesspow.py
+++ b/src/onionrproofs/subprocesspow.py
@@ -116,6 +116,7 @@ class SubprocessPOW:
         metadata['n'] = secrets.randbits(16)
         puzzle = self.puzzle
         difficulty = self.difficulty
+        start = time.time()
 
         while True:
             # Break if shutdown received
@@ -135,5 +136,6 @@ class SubprocessPOW:
             token = bytesconverter.bytes_to_str(token)
             if puzzle == token[0:difficulty]:
                 pipe.send(payload)
+                print(metadata['pow'], time.time() - start)
                 break
             nonce += 1