mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-09-18 01:33:00 +03:00
283 lines
10 KiB
C#
283 lines
10 KiB
C#
// SoftEther VPN Server JSON-RPC Stub code for C#
|
|
//
|
|
// JsonRpc.cs - JSON-RPC Client Utility Functions
|
|
//
|
|
// Automatically generated at __TIMESTAMP__ by vpnserver-jsonrpc-codegen
|
|
//
|
|
// Licensed under the Apache License 2.0
|
|
// Copyright (c) 2014-__YEAR__ SoftEther VPN Project
|
|
|
|
using System;
|
|
using System.IO;
|
|
using System.Net.Security;
|
|
using System.Net.Http;
|
|
using System.Collections.Generic;
|
|
using System.Text;
|
|
using System.Security.Cryptography.X509Certificates;
|
|
using System.Threading.Tasks;
|
|
using Newtonsoft.Json;
|
|
|
|
namespace SoftEther.JsonRpc
|
|
{
|
|
/// <summary>
|
|
/// Internal utility class
|
|
/// </summary>
|
|
static class ClientUtil
|
|
{
|
|
public const int DefaultMaxDepth = 8;
|
|
|
|
public static string NonNull(this string s) { if (s == null) return ""; else return s; }
|
|
public static bool IsEmpty(this string str)
|
|
{
|
|
if (str == null || str.Trim().Length == 0)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
public static bool IsFilled(this string str) => !IsEmpty(str);
|
|
|
|
public static string ObjectToJson(this object obj, bool include_null = false, bool escape_html = false, int? max_depth = ClientUtil.DefaultMaxDepth, bool compact = false, bool reference_handling = false) => ClientUtil.Serialize(obj, include_null, escape_html, max_depth, compact, reference_handling);
|
|
public static T JsonToObject<T>(this string str, bool include_null = false, int? max_depth = ClientUtil.DefaultMaxDepth) => ClientUtil.Deserialize<T>(str, include_null, max_depth);
|
|
public static object JsonToObject(this string str, Type type, bool include_null = false, int? max_depth = ClientUtil.DefaultMaxDepth) => ClientUtil.Deserialize(str, type, include_null, max_depth);
|
|
|
|
public static string Serialize(object obj, bool include_null = false, bool escape_html = false, int? max_depth = ClientUtil.DefaultMaxDepth, bool compact = false, bool reference_handling = false)
|
|
{
|
|
JsonSerializerSettings setting = new JsonSerializerSettings()
|
|
{
|
|
MaxDepth = max_depth,
|
|
NullValueHandling = include_null ? NullValueHandling.Include : NullValueHandling.Ignore,
|
|
ReferenceLoopHandling = ReferenceLoopHandling.Error,
|
|
PreserveReferencesHandling = reference_handling ? PreserveReferencesHandling.All : PreserveReferencesHandling.None,
|
|
StringEscapeHandling = escape_html ? StringEscapeHandling.EscapeHtml : StringEscapeHandling.Default,
|
|
};
|
|
return JsonConvert.SerializeObject(obj, compact ? Formatting.None : Formatting.Indented, setting);
|
|
}
|
|
|
|
public static T Deserialize<T>(string str, bool include_null = false, int? max_depth = ClientUtil.DefaultMaxDepth)
|
|
=> (T)Deserialize(str, typeof(T), include_null, max_depth);
|
|
|
|
public static object Deserialize(string str, Type type, bool include_null = false, int? max_depth = ClientUtil.DefaultMaxDepth)
|
|
{
|
|
JsonSerializerSettings setting = new JsonSerializerSettings()
|
|
{
|
|
MaxDepth = max_depth,
|
|
NullValueHandling = include_null ? NullValueHandling.Include : NullValueHandling.Ignore,
|
|
ObjectCreationHandling = ObjectCreationHandling.Replace,
|
|
ReferenceLoopHandling = ReferenceLoopHandling.Error,
|
|
};
|
|
return JsonConvert.DeserializeObject(str, type, setting);
|
|
}
|
|
|
|
public static void Print(this object o)
|
|
{
|
|
string str = o.ObjectToJson();
|
|
|
|
if (o is string) str = (string)o;
|
|
|
|
Console.WriteLine(str);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// JSON-RPC exception class
|
|
/// </summary>
|
|
class JsonRpcException : Exception
|
|
{
|
|
public JsonRpcError RpcError { get; }
|
|
public JsonRpcException(JsonRpcError err)
|
|
: base($"Code={err.Code}, Message={err.Message.NonNull()}" +
|
|
(err == null || err.Data == null ? "" : $", Data={err.Data.ObjectToJson(compact: true)}"))
|
|
{
|
|
this.RpcError = err;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// JSON-RPC request class. See https://www.jsonrpc.org/specification
|
|
/// </summary>
|
|
class JsonRpcRequest
|
|
{
|
|
[JsonProperty("jsonrpc", Order = 1)]
|
|
public string Version { get; set; } = "2.0";
|
|
|
|
[JsonProperty("id", Order = 2)]
|
|
public string Id { get; set; } = null;
|
|
|
|
[JsonProperty("method", Order = 3)]
|
|
public string Method { get; set; } = "";
|
|
|
|
[JsonProperty("params", Order = 4)]
|
|
public object Params { get; set; } = null;
|
|
|
|
public JsonRpcRequest() { }
|
|
|
|
public JsonRpcRequest(string method, object param, string id)
|
|
{
|
|
this.Method = method;
|
|
this.Params = param;
|
|
this.Id = id;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// JSON-RPC response class with generics
|
|
/// </summary>
|
|
/// <typeparam name="TResult"></typeparam>
|
|
class JsonRpcResponse<TResult>
|
|
{
|
|
[JsonProperty("jsonrpc", Order = 1)]
|
|
public virtual string Version { get; set; } = "2.0";
|
|
|
|
[JsonProperty("id", NullValueHandling = NullValueHandling.Include, Order = 2)]
|
|
public virtual string Id { get; set; } = null;
|
|
|
|
[JsonProperty("result", Order = 3)]
|
|
public virtual TResult Result { get; set; } = default(TResult);
|
|
|
|
[JsonProperty("error", Order = 4)]
|
|
public virtual JsonRpcError Error { get; set; } = null;
|
|
|
|
[JsonIgnore]
|
|
public virtual bool IsError => this.Error != null;
|
|
|
|
[JsonIgnore]
|
|
public virtual bool IsOk => !IsError;
|
|
|
|
public virtual void ThrowIfError()
|
|
{
|
|
if (this.IsError) throw new JsonRpcException(this.Error);
|
|
}
|
|
|
|
public override string ToString()
|
|
{
|
|
return this.ObjectToJson(compact: true);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// JSON-RPC error class. See https://www.jsonrpc.org/specification
|
|
/// </summary>
|
|
class JsonRpcError
|
|
{
|
|
public JsonRpcError() { }
|
|
public JsonRpcError(int code, string message, object data = null)
|
|
{
|
|
this.Code = code;
|
|
this.Message = message.NonNull();
|
|
if (this.Message.IsEmpty()) this.Message = $"JSON-RPC Error {code}";
|
|
this.Data = data;
|
|
}
|
|
|
|
[JsonProperty("code")]
|
|
public int Code { get; set; } = 0;
|
|
|
|
[JsonProperty("message")]
|
|
public string Message { get; set; } = null;
|
|
|
|
[JsonProperty("data")]
|
|
public object Data { get; set; } = null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// JSON-RPC client. See https://www.jsonrpc.org/specification
|
|
/// </summary>
|
|
class JsonRpcClient
|
|
{
|
|
HttpClientHandler client_handler;
|
|
HttpClient client;
|
|
public const int DefaultTimeoutMsecs = 60 * 1000;
|
|
public int TimeoutMsecs { get => (int)client.Timeout.TotalMilliseconds; set => client.Timeout = new TimeSpan(0, 0, 0, 0, value); }
|
|
public Dictionary<string, string> HttpHeaders { get; } = new Dictionary<string, string>();
|
|
|
|
string base_url;
|
|
|
|
/// <summary>
|
|
/// JSON-RPC client class constructor
|
|
/// </summary>
|
|
/// <param name="url">The URL</param>
|
|
/// <param name="cert_check_proc">The SSL certificate validation callback</param>
|
|
public JsonRpcClient(string url, Func<HttpRequestMessage, X509Certificate2, X509Chain, SslPolicyErrors, bool> cert_check_proc = null)
|
|
{
|
|
if (cert_check_proc == null) cert_check_proc = (message, cert, chain, errors) => true;
|
|
client_handler = new HttpClientHandler();
|
|
|
|
this.client_handler.AllowAutoRedirect = true;
|
|
this.client_handler.MaxAutomaticRedirections = 10;
|
|
|
|
client_handler.ServerCertificateCustomValidationCallback = cert_check_proc;
|
|
|
|
client = new HttpClient(client_handler, true);
|
|
//Console.WriteLine("new HttpClient(client_handler, true);");
|
|
|
|
this.base_url = url;
|
|
|
|
this.TimeoutMsecs = DefaultTimeoutMsecs;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Call a single RPC call (without error check). You can wait for the response with Task<string> or await statement.
|
|
/// </summary>
|
|
/// <param name="method_name">The name of RPC method</param>
|
|
/// <param name="param">The parameters</param>
|
|
public async Task<string> CallInternalAsync(string method_name, object param)
|
|
{
|
|
string id = DateTime.Now.Ticks.ToString();
|
|
|
|
JsonRpcRequest req = new JsonRpcRequest(method_name, param, id);
|
|
|
|
string req_string = req.ObjectToJson();
|
|
|
|
//Console.WriteLine($"req: {req_string}");
|
|
|
|
HttpContent content = new StringContent(req_string, Encoding.UTF8, "application/json");
|
|
|
|
foreach (string key in this.HttpHeaders.Keys)
|
|
{
|
|
string value = this.HttpHeaders[key];
|
|
|
|
content.Headers.Add(key, value);
|
|
}
|
|
|
|
HttpResponseMessage response = await this.client.PostAsync(base_url, content);
|
|
|
|
Stream responseStream = await response.Content.ReadAsStreamAsync();
|
|
|
|
if (!response.IsSuccessStatusCode)
|
|
{
|
|
using (StreamReader streamReader = new StreamReader(responseStream))
|
|
{
|
|
throw new Exception($"Error: {response.StatusCode}: {await streamReader.ReadToEndAsync()}");
|
|
}
|
|
}
|
|
|
|
string ret_string;
|
|
|
|
using (StreamReader streamReader = new StreamReader(responseStream))
|
|
{
|
|
ret_string = await streamReader.ReadToEndAsync();
|
|
}
|
|
|
|
//Console.WriteLine($"ret: {ret_string}");
|
|
|
|
return ret_string;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Call a single RPC call (with error check). You can wait for the response with Promise<TResult> or await statement. In the case of error, it will be thrown.
|
|
/// </summary>
|
|
/// <param name="method_name">The name of RPC method</param>
|
|
/// <param name="param">The parameters</param>
|
|
public async Task<TResult> CallAsync<TResult>(string method_name, object param)
|
|
{
|
|
string ret_string = await CallInternalAsync(method_name, param);
|
|
|
|
JsonRpcResponse <TResult> ret = ret_string.JsonToObject<JsonRpcResponse<TResult>>();
|
|
|
|
ret.ThrowIfError();
|
|
|
|
return ret.Result;
|
|
}
|
|
}
|
|
}
|
|
|