Clean up and added force encoding option in plugins

This commit is contained in:
Kayori
2026-01-17 19:50:00 +01:00
parent c7a27b8783
commit 24cd5e00f3
5 changed files with 185 additions and 147 deletions
+154 -139
View File
@@ -1,24 +1,26 @@
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using KbinXml.Net;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Server;
using Server.Extensions;
using Server.Middlewares;
using Server.Services;
using Server.Utils;
using System.Security.Cryptography;
using System.Text;
using System.Xml.Linq;
using Abstractions.Entities;
using Abstractions.Services;
using Abstractions.Utils;
using KbinXml.Net;
using Microsoft.AspNetCore.Hosting.Server;
using Microsoft.AspNetCore.Hosting.Server.Features;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Server;
using Server.Authentication;
using Server.Extensions;
using Server.Middlewares;
using Server.Models.Request;
using Server.Services;
using Server.Utils;
using System.Net;
using System.Net.Http;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Security.Cryptography;
using System.Text;
using System.Xml.Linq;
var key =
Convert.FromHexString("00000000000069D74627D985EE2187161570D08D93B12455035B6DF0D8205DF5");
@@ -98,143 +100,157 @@ app.MapIdentityApi();
var eamuseGroup = app.MapGroup("eamuse");
eamuseGroup.MapPost("/{model}/{module}/{method}", (string model, string module, string method,
[FromServices] IHttpContextAccessor httpContextAccessor) =>
{
});
eamuseGroup.MapPost("/{m}", async (string m, [FromQuery] string model, [FromQuery] string? module, [FromQuery] string? method, [FromQuery] string? f,
HttpContext httpContext, [FromServices] ILogger<Program> logger, [FromServices] IHandlerService handlerService) =>
{
// Enable buffering to allow multiple reads of the request body
httpContext.Request.EnableBuffering();
// The body is 932 encoded xml
using var reader = new StreamReader(httpContext.Request.Body, Encoding.GetEncoding(932), false, 1024, true);
var body = await reader.ReadToEndAsync();
httpContext.Request.Body.Position = 0;
var compress = httpContext.Request.Headers["X-Compress"].ToString().Contains("lz77");
var encrypt = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault() is not null;
var amusementRequest = new AmusementRequest() { Model = model, Module = module ?? "", Method = method ?? "" };
if(!string.IsNullOrEmpty(f))
eamuseGroup.MapPost("/{model}/{module}/{method}", async (string model, string module, string method,
HttpContext httpContext, [FromServices] ILogger<Program> logger, [FromServices] IHandlerService handlerService, [FromServices] IPluginService pluginService) =>
{
var fParts = f.Split('.');
amusementRequest.Module = fParts[0];
amusementRequest.Method = fParts[1];
}
// Enable buffering to allow multiple reads of the request body
httpContext.Request.EnableBuffering();
var body = "";
// The body is 932 encoded xml
if(httpContext.Request.Body.Length != 0)
{
using var reader = new StreamReader(httpContext.Request.Body, Encoding.GetEncoding(932), false, 1024, true);
body = await reader.ReadToEndAsync();
}
logger.LogInformation("Handling {Module} {Method}", amusementRequest.Module, amusementRequest.Method);
httpContext.Request.Body.Position = 0;
var compress = httpContext.Request.Headers["X-Compress"].ToString().Contains("lz77");
var encrypt = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault() is not null;
var amusementRequest = new AmusementRequest() { Model = model, Module = module ?? "", Method = method ?? "" };
var encoding = httpContext.Items["Encoding"]?.ToString() ?? "ShiftJIS";
httpContext.Request.Headers.TryGetValue("IsEncoded", out var isEncoded);
var originalInfo = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault() ?? "";
httpContext.Response.Headers.Append("X-Eamuse-Info", originalInfo);
var result = await HandleEAmuseRequest(amusementRequest, body, originalInfo, compress, encrypt, isEncoded == "true", encoding, logger, handlerService, pluginService);
return TypedResults.Bytes(result, "application/octet-stream");
});
eamuseGroup.MapPost("/{m}", async (string m, [FromQuery] string model, [FromQuery] string? module, [FromQuery] string? method, [FromQuery] string? f,
HttpContext httpContext, [FromServices] ILogger<Program> logger, [FromServices] IHandlerService handlerService, [FromServices] IPluginService pluginService) =>
{
// Enable buffering to allow multiple reads of the request body
httpContext.Request.EnableBuffering();
var body = "";
// The body is 932 encoded xml
if(httpContext.Request.Body.Length != 0)
{
using var reader = new StreamReader(httpContext.Request.Body, Encoding.GetEncoding(932), false, 1024, true);
body = await reader.ReadToEndAsync();
}
httpContext.Request.Body.Position = 0;
var compress = httpContext.Request.Headers["X-Compress"].ToString().Contains("lz77");
var encrypt = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault() is not null;
var amusementRequest = new AmusementRequest() { Model = model, Module = module ?? "", Method = method ?? "" };
if(!string.IsNullOrEmpty(f))
{
var fParts = f.Split('.');
amusementRequest.Module = fParts[0];
amusementRequest.Method = fParts[1];
}
var encoding = httpContext.Items["Encoding"]?.ToString() ?? "ShiftJIS";
httpContext.Request.Headers.TryGetValue("IsEncoded", out var isEncoded);
var originalInfo = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault() ?? "";
httpContext.Response.Headers.Append("X-Eamuse-Info", originalInfo);
var result = await HandleEAmuseRequest(amusementRequest, body, originalInfo, compress, encrypt, isEncoded == "true", encoding, logger, handlerService, pluginService);
return TypedResults.Bytes(result, "application/octet-stream");
});
eamuseGroup.MapPost("/", async ([FromQuery] string model, [FromQuery] string? module, [FromQuery] string? method, [FromQuery] string? f,
HttpContext httpContext, [FromServices] ILogger<Program> logger, [FromServices] IHandlerService handlerService, [FromServices] IPluginService pluginService) =>
{
// Enable buffering to allow multiple reads of the request body
httpContext.Request.EnableBuffering();
var body = "";
// The body is 932 encoded xml
if(httpContext.Request.Body.Length != 0)
{
using var reader = new StreamReader(httpContext.Request.Body, Encoding.GetEncoding(932), false, 1024, true);
body = await reader.ReadToEndAsync();
}
httpContext.Request.Body.Position = 0;
var compress = httpContext.Request.Headers["X-Compress"].ToString().Contains("lz77");
var encrypt = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault() is not null;
var amusementRequest = new AmusementRequest() { Model = model, Module = module ?? "", Method = method ?? "" };
if(!string.IsNullOrEmpty(f))
{
var fParts = f.Split('.');
amusementRequest.Module = fParts[0];
amusementRequest.Method = fParts[1];
}
var encoding = httpContext.Items["Encoding"]?.ToString() ?? "ShiftJIS";
httpContext.Request.Headers.TryGetValue("IsEncoded", out var isEncoded);
var originalInfo = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault() ?? "";
httpContext.Response.Headers.Append("X-Eamuse-Info", originalInfo);
var result = await HandleEAmuseRequest(amusementRequest, body, originalInfo, compress, encrypt, isEncoded == "true", encoding, logger, handlerService, pluginService);
return TypedResults.Bytes(result, "application/octet-stream");
});
async Task<byte[]> HandleEAmuseRequest(AmusementRequest request, string body, string info, bool compress, bool encrypt, bool isEncoded, string encoding, ILogger<Program> logger, IHandlerService handlerService, IPluginService pluginService)
{
logger.LogInformation("Handling {Module} {Method}", request.Module, request.Method);
var document = new XDocument();
if (!string.IsNullOrEmpty(body))
document = XDocument.Parse(body);
var responseXml = await handlerService.Handle(amusementRequest.Model, amusementRequest.Module, amusementRequest.Method, document);
var encoding = httpContext.Items["Encoding"]?.ToString() ?? "ShiftJIS";
var encodingEnum = encoding switch
{
"shift_jis" or "ShiftJIS" or "SHIFT_JIS" => KnownEncodings.ShiftJIS,
"us-ascii" => KnownEncodings.ASCII,
"utf-8" => KnownEncodings.UTF8,
"euc-jp" => KnownEncodings.EUC_JP,
"iso-8859-1" => KnownEncodings.ISO_8859_1,
_ => throw new ArgumentException($"Unknown encoding: {encoding}")
};
if (amusementRequest.Module == "package")
{
logger.LogInformation("{xml}", responseXml);
}
var encodedBody = KbinConverter.Write(responseXml, encodingEnum);
if (amusementRequest.Module == "package")
{
File.WriteAllBytes("test.bin", encodedBody);
}
if(compress)
{
encodedBody = LZ77.CompressEmpty(encodedBody);
}
if (!encrypt) return TypedResults.Bytes(encodedBody, "application/octet-stream");
var originalInfo = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault()?.Split('-') ?? [];
var part = Convert.FromHexString((originalInfo[1] + originalInfo[2]));
for(var i = 0; i < 6; i++)
key[i] = part[i];
var rc4Key = MD5.HashData(key);
encodedBody = RC4.Encrypt(rc4Key, encodedBody);
httpContext.Response.Headers.Append("X-Eamuse-Info", string.Join('-', originalInfo));
return TypedResults.Bytes(encodedBody, "application/octet-stream");
});
eamuseGroup.MapPost("/", async ([FromQuery] string model, [FromQuery] string? module, [FromQuery] string? method, [FromQuery] string? f,
HttpContext httpContext, [FromServices] ILogger<Program> logger, [FromServices] IHandlerService handlerService) =>
{
// Enable buffering to allow multiple reads of the request body
httpContext.Request.EnableBuffering();
var body = "";
// The body is 932 encoded xml
if(httpContext.Request.Body.Length != 0)
{
using var reader = new StreamReader(httpContext.Request.Body, Encoding.GetEncoding(932), false, 1024, true);
body = await reader.ReadToEndAsync();
}
httpContext.Request.Body.Position = 0;
var compress = httpContext.Request.Headers["X-Compress"].ToString().Contains("lz77");
var encrypt = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault() is not null;
var amusementRequest = new AmusementRequest() { Model = model, Module = module ?? "", Method = method ?? ""};
if (!string.IsNullOrEmpty(f))
{
var fParts = f.Split('.');
amusementRequest.Module = fParts[0];
amusementRequest.Method = fParts[1];
}
logger.LogInformation("Handling {Module} {Method}", amusementRequest.Module, amusementRequest.Method);
var document = new XDocument();
if(!string.IsNullOrEmpty(body))
document = XDocument.Parse(body);
var responseXml = await handlerService.Handle(amusementRequest.Model, amusementRequest.Module, amusementRequest.Method, document);
var responseXml = await handlerService.Handle(request.Model, request.Module, request.Method, document);
var encoding = httpContext.Items["Encoding"]?.ToString() ?? "ShiftJIS";
var plugins = pluginService.GetPlugins();
var forcedEncoding = plugins.FirstOrDefault(p => p.GameCode == request.Model)?.ForcedEncoding;
var encodingEnum = encoding switch
{
"shift_jis" or "ShiftJIS" or "SHIFT_JIS" => KnownEncodings.ShiftJIS,
"us-ascii" => KnownEncodings.ASCII,
"utf-8" => KnownEncodings.UTF8,
"euc-jp" => KnownEncodings.EUC_JP,
"shift_jis" or "ShiftJIS" or "SHIFT_JIS" => KnownEncodings.ShiftJIS,
"us-ascii" => KnownEncodings.ASCII,
"utf-8" => KnownEncodings.UTF8,
"euc-jp" => KnownEncodings.EUC_JP,
"iso-8859-1" => KnownEncodings.ISO_8859_1,
_ => throw new ArgumentException($"Unknown encoding: {encoding}")
};
if (amusementRequest.Module == "package")
if(forcedEncoding is not null)
{
encodingEnum = forcedEncoding.ToKnownEncoding();
}
if(request.Module == "package")
{
logger.LogInformation("{xml}", responseXml);
}
byte[] encodedBody;
if (httpContext.Request.Headers.TryGetValue("IsEncoded", out var value) && value == "false")
if(!isEncoded)
{
var encoder = Encoding.GetEncoding(encoding);
encodedBody = encoder.GetBytes(responseXml.ToString());
@@ -242,8 +258,8 @@ eamuseGroup.MapPost("/", async ([FromQuery] string model, [FromQuery] string? mo
else
{
encodedBody = KbinConverter.Write(responseXml, encodingEnum);
if (amusementRequest.Module == "package")
if(request.Module == "package")
{
File.WriteAllBytes("test.bin", encodedBody);
}
@@ -253,18 +269,17 @@ eamuseGroup.MapPost("/", async ([FromQuery] string model, [FromQuery] string? mo
encodedBody = LZ77.CompressEmpty(encodedBody);
}
if (!encrypt) return TypedResults.Bytes(encodedBody, "application/octet-stream");
var originalInfo = httpContext.Request.Headers["X-Eamuse-Info"].FirstOrDefault()?.Split('-') ?? [];
var originalInfo = info.Split('-');
if(!encrypt) return encodedBody;
var part = Convert.FromHexString((originalInfo[1] + originalInfo[2]));
for(var i = 0; i < 6; i++)
key[i] = part[i];
var rc4Key = MD5.HashData(key);
encodedBody = RC4.Encrypt(rc4Key, encodedBody);
httpContext.Response.Headers.Append("X-Eamuse-Info", string.Join('-', originalInfo));
return TypedResults.Bytes(encodedBody, "application/octet-stream");
});
return encodedBody;
}
app.MapFallbackToFile("/index.html");