public bool SubmitWork(IMiner miner, Work work, string comment)
{
return onWork(miner, work);
}
/// <summary>
/// Parses a <see cref="WebResponse"/> containing the results of a 'getwork' request.
/// </summary>
/// <param name="webResponse"></param>
/// <returns></returns>
Work ParseGetWork(WebResponse webResponse)
{
// obtain and update current block number
uint blockNumber = 0;
if (webResponse.Headers["X-Blocknum"] != null)
CurrentBlockNumber = blockNumber = uint.Parse(webResponse.Headers["X-Blocknum"]);
// parse and update long poll url value if present
var longPollUrlStr = webResponse.Headers["X-Long-Polling"];
if (longPollUrlStr == null)
longPollUrl = null;
else if (longPollUrlStr == "")
longPollUrl = url;
else if (longPollUrlStr.StartsWith("http:") || longPollUrlStr.StartsWith("https:"))
longPollUrl = new Uri(longPollUrlStr);
else
longPollUrl = new Uri(url, longPollUrlStr);
// longPollUrl does not specify user info, but userinfo was required on initial url
if (string.IsNullOrWhiteSpace(longPollUrl.UserInfo) && !string.IsNullOrWhiteSpace(url.UserInfo))
{
var b = new UriBuilder(longPollUrl);
var u = url.UserInfo
.Split(':')
.Select(i => HttpUtility.UrlDecode(i))
.ToArray();
if (u.Length >= 2)
{
b.UserName = u[0];
b.Password = u[1];
}
longPollUrl = b.Uri;
}
// retrieve invocation response
using (var txt = new StreamReader(webResponse.GetResponseStream()))
using (var rdr = new JsonTextReader(txt))
{
if (!rdr.MoveToContent() && rdr.Read())
throw new JsonException("Unexpected content from 'getwork'.");
var response = JsonConvert.Import<JsonGetWork>(rdr);
if (response == null)
throw new JsonException("No response returned.");
if (response.Error != null)
Console.WriteLine("JSON-RPC: {0}", response.Error);
var result = response.Result;
if (result == null)
return null;
// decode data
var data = Memory.Decode(result.Data);
if (data.Length != 128)
throw new InvalidDataException("Received data is not valid.");
// extract only header portion
var header = new byte[80];
Array.Copy(data, header, 80);
// decode target
var target = Memory.Decode(result.Target);
if (target.Length != 32)
throw new InvalidDataException("Received target is not valid.");
// generate new work instance
var work = new Work()
{
Pool = this,
BlockNumber = blockNumber,
Header = header,
Target = target,
};
// release connection
webResponse.Close();
return work;
}
}
/// <summary>
/// Parses a <see cref="WebResponse"/> containing the results of a 'getwork' request.
/// </summary>
/// <param name="webResponse"></param>
/// <returns></returns>
private Work ParseGetWork(WebResponse webResponse)
{
// obtain and update current block number
uint blockNumber = 0;
if (webResponse.Headers["X-Blocknum"] != null)
CurrentBlockNumber = blockNumber = uint.Parse(webResponse.Headers["X-Blocknum"]);
// parse and update long poll url value if present
var longPollUrlStr = webResponse.Headers["X-Long-Polling"];
if (longPollUrlStr == null)
longPollUrl = null;
else if (longPollUrlStr == "")
longPollUrl = url;
else if (longPollUrlStr.StartsWith("http:") || longPollUrlStr.StartsWith("https:"))
longPollUrl = new Uri(longPollUrlStr);
else
longPollUrl = new Uri(url, longPollUrlStr);
// retrieve invocation response
using (var txt = new StreamReader(webResponse.GetResponseStream()))
using (var rdr = new JsonTextReader(txt))
{
if (!rdr.MoveToContent() && rdr.Read())
throw new JsonException("Unexpected content from 'getwork'.");
var response = JsonConvert.Import<JsonGetWork>(rdr);
if (response == null)
throw new JsonException("No response returned.");
if (response.Error != null)
Console.WriteLine("JSON-RPC: {0}", response.Error);
var result = response.Result;
if (result == null)
return null;
// decode data
var data = Memory.Decode(result.Data);
if (data.Length != 128)
throw new InvalidDataException("Received data is not valid.");
// extract only header portion
var header = new byte[80];
Array.Copy(data, header, 80);
// decode target
var target = Memory.Decode(result.Target);
if (target.Length != 32)
throw new InvalidDataException("Received target is not valid.");
// generate new work instance
var work = new Work()
{
Pool = this,
BlockNumber = blockNumber,
Header = header,
Target = target,
};
// release connection
webResponse.Close();
return work;
}
}
/// <summary>
/// Invokes the 'getwork' JSON method, submitting the proposed work. Returns <c>true</c> if the service accepts
/// the proposed work.
/// </summary>
/// <param name="work"></param>
/// <returns></returns>
public bool SubmitWorkRpc(IMiner miner, Work work, string comment)
{
var req = OpenRpc(miner, comment);
if (req == null)
return false;
// header needs to have SHA-256 padding appended
var data = Sha256.AllocateInputBuffer(80);
// prepare header buffer with SHA-256
Sha256.Prepare(data, 80, 0);
Sha256.Prepare(data, 80, 1);
// dump header data on top of padding
Array.Copy(work.Header, data, 80);
// encode in proper format
var solution = Memory.Encode(data);
Console.WriteLine();
Console.WriteLine("SOLUTION: {0,10} {1}", miner.GetType().Name, Memory.Encode(work.Header));
Console.WriteLine();
Console.WriteLine();
using (var txt = new StreamWriter(req.GetRequestStream()))
using (var wrt = new JsonTextWriter(txt))
{
wrt.WriteStartObject();
wrt.WriteMember("id");
wrt.WriteString("json");
wrt.WriteMember("method");
wrt.WriteString("getwork");
wrt.WriteMember("params");
wrt.WriteStartArray();
wrt.WriteString(solution);
wrt.WriteEndArray();
wrt.WriteEndObject();
wrt.Flush();
}
using (var txt = new StreamReader(req.GetResponse().GetResponseStream()))
using (var rdr = new JsonTextReader(txt))
{
if (!rdr.MoveToContent() && rdr.Read())
throw new JsonException("Unexpected content from 'getwork <data>'.");
var response = JsonConvert.Import<JsonSubmitWork>(rdr);
if (response == null)
throw new JsonException("No response returned.");
if (response.Error != null)
Console.WriteLine("JSON-RPC: {0}", response.Error);
Console.WriteLine();
Console.WriteLine("{0}: {1,10} {2}", response.Result ? "ACCEPTED" : "REJECTED", miner.GetType().Name, Memory.Encode(work.Header));
Console.WriteLine();
Console.WriteLine();
return response.Result;
}
}
public unsafe void BlockHeaderHashTest()
{
// sample work with immediate solution
var work = new Work()
{
BlockNumber = 0,
Header = Memory.Decode("00000001d915b8fd2face61c6fe22ab76cad5f46c11cebab697dbd9e00000804000000008fe5f19cbdd55b40db93be7ef8ae249e0b21ec6e29c833b186404de0de205cc54e0022ac1a132185007d1adf000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"),
Target = Memory.Decode("ffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000"),
};
// allocate buffers to hold hashing work
byte[] round1Blocks = Sha256.AllocateInputBuffer(80);
uint[] round1State = Sha256.AllocateStateBuffer();
byte[] round2Blocks = Sha256.AllocateInputBuffer(Sha256.SHA256_HASH_SIZE);
uint[] round2State = Sha256.AllocateStateBuffer();
byte[] hash = Sha256.AllocateHashBuffer();
fixed (byte* round1BlocksPtr = round1Blocks, round2BlocksPtr = round2Blocks, hashPtr = hash, targetPtr = work.Target)
fixed (uint* round1StatePtr = round1State, round2StatePtr = round2State)
{
byte* round1Block1Ptr = round1BlocksPtr;
byte* round1Block2Ptr = round1BlocksPtr + Sha256.SHA256_BLOCK_SIZE;
byte* round2Block1Ptr = round2BlocksPtr;
// header arrives in big endian, convert to host
fixed (byte* workHeaderPtr = work.Header)
Memory.ReverseEndian((uint*)workHeaderPtr, (uint*)round1BlocksPtr, 20);
// prepare states and blocks
Sha256.Initialize(round1StatePtr);
Sha256.Initialize(round2StatePtr);
Sha256.Prepare(round1Block1Ptr, 80, 0);
Sha256.Prepare(round1Block2Ptr, 80, 1);
Sha256.Prepare(round2BlocksPtr, Sha256.SHA256_HASH_SIZE, 0);
// hash first half of header
Sha256.Transform(round1StatePtr, round1Block1Ptr);
Sha256.Transform(round1StatePtr, round1Block2Ptr, (uint*)round2Block1Ptr);
Sha256.Transform(round2StatePtr, round2Block1Ptr);
Sha256.Finalize(round2StatePtr, hashPtr);
for (int i = 7; i >= 0; i--)
Assert.IsFalse(((uint*)hashPtr)[i] > ((uint*)targetPtr)[i]);
}
}
