shehrozeee/espotacs

espota.py re-written in c#

espotacs

original python implementation https://github.com/esp8266/Arduino/blob/master/tools/espota.py espota.py re-written in c# This will work with the ArduinoOTA https://github.com/esp8266/Arduino/tree/master/libraries/ArduinoOTA works with both esp32 and esp8266 you may need to increase the timeout value on the controller side if your update fails half way.

espotacs's Issues

Adding Auth functionality

Tested to add an authorization section inspired by python code from https://github.com/esp8266/Arduino/blob/master/tools/espota.py
It worked and responded OK!

//Password authentication similar to github python code
var nonce = res_text.Split(' ')[1];
var cnonce_text = $"{file_uri}{content_size}{file_md5}{remoteAddr}";
var cnonce = cnonce_text.ToMD5Hash();
var passmd5 = password.ToMD5Hash();
var result_text = $"{passmd5}:{nonce}:{cnonce}";
var result = result_text.ToMD5Hash();
Console.WriteLine("Authenticating...");
message = $"{FLASH_Options.AUTH:D} {cnonce} {result}\n";
message_bytes = message.Encode();

//Send authentication request
sock2.Send(message_bytes, message_bytes.Length, ep);
t = sock2.ReceiveAsync();

Created three extensions String.ToMD5Hash(), Stream.ToMD5Hash and String.Encode() to simplify

public static byte[] Encode(this string @this)
{
    return Encoding.ASCII.GetBytes(@this);
}

/// <summary>
///     A Stream extension method that converts the @this to a md 5 hash.
/// </summary>
/// <param name="this">The @this to act on.</param>
/// <returns>@this as a string.</returns>
public static string ToMD5Hash(this Stream @this)
{
    using (MD5 md5 = MD5.Create())
    {
	byte[] hashBytes = md5.ComputeHash(@this);
	var sb = new StringBuilder();
	foreach (byte bytes in hashBytes)
	{
	    sb.Append(bytes.ToString("x2"));
	}

	return sb.ToString();
    }
}

/// <summary>
///     A Stream extension method that converts the @this to a md 5 hash.
/// </summary>
/// <param name="this">The @this to act on.</param>
/// <returns>@this as a string.</returns>
public static string ToMD5Hash(this string @this, bool useACII=false)
{
    using (MD5 md5 = MD5.Create())
    {
	byte[] hashBytes = md5.ComputeHash(useACII ? Encoding.ASCII.GetBytes(@this) : Encoding.UTF8.GetBytes(@this));
	var sb = new StringBuilder();
	foreach (byte bytes in hashBytes)
	{
	    sb.Append(bytes.ToString("x2"));
	}

	return sb.ToString();
    }
}

MD5 hash error

Hi,
When uploading a sketch though this OTA code, i got a MDR5 fail error.
Were does "ToMD5Hash()" comes from ? i can't find any references so i used a custom function to calculate MD5 but it is probably false.
Thanks,

EDIT :
Finally reworked my md5hash function like this :

public static string ToMd5Hash(byte[] value)
        {
           
            using (MD5 md5 = new MD5CryptoServiceProvider())
            {
                byte[] encodedBytes = md5.ComputeHash(value);
                return BitConverter.ToString(encodedBytes).Replace("-", string.Empty).ToLower();
            }
        }

From : https://stackoverflow.com/questions/10520048/calculate-md5-checksum-for-a-file