Files
v2rayN/v2rayN/v2rayN/Handler/ShareHandler.cs
2021-05-11 20:11:59 +08:00

712 lines
26 KiB
C#

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Web;
using v2rayN.Base;
using v2rayN.Mode;
namespace v2rayN.Handler
{
class ShareHandler
{
#region GetShareUrl
/// <summary>
/// GetShareUrl
/// </summary>
/// <param name="config"></param>
/// <param name="index"></param>
/// <returns></returns>
public static string GetShareUrl(Config config, int index)
{
try
{
string url = string.Empty;
VmessItem item = config.vmess[index];
if (item.configType == (int)EConfigType.Vmess)
{
VmessQRCode vmessQRCode = new VmessQRCode
{
v = item.configVersion.ToString(),
ps = item.remarks.TrimEx(), //备注也许很长 ;
add = item.address,
port = item.port.ToString(),
id = item.id,
aid = item.alterId.ToString(),
scy = item.security,
net = item.network,
type = item.headerType,
host = item.requestHost,
path = item.path,
tls = item.streamSecurity,
sni = item.sni
};
url = Utils.ToJson(vmessQRCode);
url = Utils.Base64Encode(url);
url = string.Format("{0}{1}", Global.vmessProtocol, url);
}
else if (item.configType == (int)EConfigType.Shadowsocks)
{
string remark = string.Empty;
if (!Utils.IsNullOrEmpty(item.remarks))
{
remark = "#" + Utils.UrlEncode(item.remarks);
}
url = string.Format("{0}:{1}@{2}:{3}",
item.security,
item.id,
item.address,
item.port);
url = Utils.Base64Encode(url);
url = string.Format("{0}{1}{2}", Global.ssProtocol, url, remark);
}
else if (item.configType == (int)EConfigType.Socks)
{
string remark = string.Empty;
if (!Utils.IsNullOrEmpty(item.remarks))
{
remark = "#" + Utils.UrlEncode(item.remarks);
}
url = string.Format("{0}:{1}@{2}:{3}",
item.security,
item.id,
item.address,
item.port);
url = Utils.Base64Encode(url);
url = string.Format("{0}{1}{2}", Global.socksProtocol, url, remark);
}
else if (item.configType == (int)EConfigType.Trojan)
{
string remark = string.Empty;
if (!Utils.IsNullOrEmpty(item.remarks))
{
remark = "#" + Utils.UrlEncode(item.remarks);
}
string query = string.Empty;
if (!Utils.IsNullOrEmpty(item.sni))
{
query = string.Format("?sni={0}", Utils.UrlEncode(item.sni));
}
url = string.Format("{0}@{1}:{2}",
item.id,
GetIpv6(item.address),
item.port);
url = string.Format("{0}{1}{2}{3}", Global.trojanProtocol, url, query, remark);
}
else if (item.configType == (int)EConfigType.VLESS)
{
string remark = string.Empty;
if (!Utils.IsNullOrEmpty(item.remarks))
{
remark = "#" + Utils.UrlEncode(item.remarks);
}
var dicQuery = new Dictionary<string, string>();
if (!Utils.IsNullOrEmpty(item.flow))
{
dicQuery.Add("flow", item.flow);
}
if (!Utils.IsNullOrEmpty(item.security))
{
dicQuery.Add("encryption", item.security);
}
else
{
dicQuery.Add("encryption", "none");
}
if (!Utils.IsNullOrEmpty(item.streamSecurity))
{
dicQuery.Add("security", item.streamSecurity);
}
else
{
dicQuery.Add("security", "none");
}
if (!Utils.IsNullOrEmpty(item.sni))
{
dicQuery.Add("sni", item.sni);
}
if (!Utils.IsNullOrEmpty(item.network))
{
dicQuery.Add("type", item.network);
}
else
{
dicQuery.Add("type", "tcp");
}
switch (item.network)
{
case "tcp":
if (!Utils.IsNullOrEmpty(item.headerType))
{
dicQuery.Add("headerType", item.headerType);
}
else
{
dicQuery.Add("headerType", "none");
}
if (!Utils.IsNullOrEmpty(item.requestHost))
{
dicQuery.Add("host", Utils.UrlEncode(item.requestHost));
}
break;
case "kcp":
if (!Utils.IsNullOrEmpty(item.headerType))
{
dicQuery.Add("headerType", item.headerType);
}
else
{
dicQuery.Add("headerType", "none");
}
if (!Utils.IsNullOrEmpty(item.path))
{
dicQuery.Add("seed", Utils.UrlEncode(item.path));
}
break;
case "ws":
if (!Utils.IsNullOrEmpty(item.requestHost))
{
dicQuery.Add("host", Utils.UrlEncode(item.requestHost));
}
if (!Utils.IsNullOrEmpty(item.path))
{
dicQuery.Add("path", Utils.UrlEncode(item.path));
}
break;
case "http":
case "h2":
dicQuery["type"] = "http";
if (!Utils.IsNullOrEmpty(item.requestHost))
{
dicQuery.Add("host", Utils.UrlEncode(item.requestHost));
}
if (!Utils.IsNullOrEmpty(item.path))
{
dicQuery.Add("path", Utils.UrlEncode(item.path));
}
break;
case "quic":
if (!Utils.IsNullOrEmpty(item.headerType))
{
dicQuery.Add("headerType", item.headerType);
}
else
{
dicQuery.Add("headerType", "none");
}
dicQuery.Add("quicSecurity", Utils.UrlEncode(item.requestHost));
dicQuery.Add("key", Utils.UrlEncode(item.path));
break;
case "grpc":
if (!Utils.IsNullOrEmpty(item.path))
{
dicQuery.Add("serviceName", Utils.UrlEncode(item.path));
}
break;
}
string query = "?" + string.Join("&", dicQuery.Select(x => x.Key + "=" + x.Value).ToArray());
url = string.Format("{0}@{1}:{2}",
item.id,
GetIpv6(item.address),
item.port);
url = string.Format("{0}{1}{2}{3}", Global.vlessProtocol, url, query, remark);
}
else
{
}
return url;
}
catch
{
return "";
}
}
private static string GetIpv6(string address)
{
return Utils.IsIpv6(address) ? $"[{address}]" : address;
}
#endregion
#region ImportShareUrl
/// <summary>
/// 从剪贴板导入URL
/// </summary>
/// <param name="fileName"></param>
/// <param name="msg"></param>
/// <returns></returns>
public static VmessItem ImportFromClipboardConfig(string clipboardData, out string msg)
{
msg = string.Empty;
VmessItem vmessItem = new VmessItem();
try
{
//载入配置文件
string result = clipboardData.TrimEx();// Utils.GetClipboardData();
if (Utils.IsNullOrEmpty(result))
{
msg = UIRes.I18N("FailedReadConfiguration");
return null;
}
if (result.StartsWith(Global.vmessProtocol))
{
int indexSplit = result.IndexOf("?");
if (indexSplit > 0)
{
vmessItem = ResolveStdVmess(result) ?? ResolveVmess4Kitsunebi(result);
}
else
{
vmessItem.configType = (int)EConfigType.Vmess;
result = result.Substring(Global.vmessProtocol.Length);
result = Utils.Base64Decode(result);
//转成Json
VmessQRCode vmessQRCode = Utils.FromJson<VmessQRCode>(result);
if (vmessQRCode == null)
{
msg = UIRes.I18N("FailedConversionConfiguration");
return null;
}
vmessItem.network = Global.DefaultNetwork;
vmessItem.headerType = Global.None;
vmessItem.configVersion = Utils.ToInt(vmessQRCode.v);
vmessItem.remarks = Utils.ToString(vmessQRCode.ps);
vmessItem.address = Utils.ToString(vmessQRCode.add);
vmessItem.port = Utils.ToInt(vmessQRCode.port);
vmessItem.id = Utils.ToString(vmessQRCode.id);
vmessItem.alterId = Utils.ToInt(vmessQRCode.aid);
vmessItem.security = Utils.ToString(vmessQRCode.scy);
if (!Utils.IsNullOrEmpty(vmessQRCode.scy))
{
vmessItem.security = vmessQRCode.scy;
}
else
{
vmessItem.security = Global.DefaultSecurity;
}
if (!Utils.IsNullOrEmpty(vmessQRCode.net))
{
vmessItem.network = vmessQRCode.net;
}
if (!Utils.IsNullOrEmpty(vmessQRCode.type))
{
vmessItem.headerType = vmessQRCode.type;
}
vmessItem.requestHost = Utils.ToString(vmessQRCode.host);
vmessItem.path = Utils.ToString(vmessQRCode.path);
vmessItem.streamSecurity = Utils.ToString(vmessQRCode.tls);
vmessItem.sni = Utils.ToString(vmessQRCode.sni);
}
ConfigHandler.UpgradeServerVersion(ref vmessItem);
}
else if (result.StartsWith(Global.ssProtocol))
{
msg = UIRes.I18N("ConfigurationFormatIncorrect");
vmessItem = ResolveSSLegacy(result);
if (vmessItem == null)
{
vmessItem = ResolveSip002(result);
}
if (vmessItem == null)
{
return null;
}
if (vmessItem.address.Length == 0 || vmessItem.port == 0 || vmessItem.security.Length == 0 || vmessItem.id.Length == 0)
{
return null;
}
vmessItem.configType = (int)EConfigType.Shadowsocks;
}
else if (result.StartsWith(Global.socksProtocol))
{
msg = UIRes.I18N("ConfigurationFormatIncorrect");
vmessItem.configType = (int)EConfigType.Socks;
result = result.Substring(Global.socksProtocol.Length);
//remark
int indexRemark = result.IndexOf("#");
if (indexRemark > 0)
{
try
{
vmessItem.remarks = Utils.UrlDecode(result.Substring(indexRemark + 1, result.Length - indexRemark - 1));
}
catch { }
result = result.Substring(0, indexRemark);
}
//part decode
int indexS = result.IndexOf("@");
if (indexS > 0)
{
}
else
{
result = Utils.Base64Decode(result);
}
string[] arr1 = result.Split('@');
if (arr1.Length != 2)
{
return null;
}
string[] arr21 = arr1[0].Split(':');
//string[] arr22 = arr1[1].Split(':');
int indexPort = arr1[1].LastIndexOf(":");
if (arr21.Length != 2 || indexPort < 0)
{
return null;
}
vmessItem.address = arr1[1].Substring(0, indexPort);
vmessItem.port = Utils.ToInt(arr1[1].Substring(indexPort + 1, arr1[1].Length - (indexPort + 1)));
vmessItem.security = arr21[0];
vmessItem.id = arr21[1];
}
else if (result.StartsWith(Global.trojanProtocol))
{
msg = UIRes.I18N("ConfigurationFormatIncorrect");
vmessItem.configType = (int)EConfigType.Trojan;
Uri uri = new Uri(result);
vmessItem.address = uri.IdnHost;
vmessItem.port = uri.Port;
vmessItem.id = uri.UserInfo;
var qurery = HttpUtility.ParseQueryString(uri.Query);
vmessItem.sni = qurery["sni"] ?? "";
var remarks = uri.Fragment.Replace("#", "");
if (Utils.IsNullOrEmpty(remarks))
{
vmessItem.remarks = "NONE";
}
else
{
vmessItem.remarks = Utils.UrlDecode(remarks);
}
}
else if (result.StartsWith(Global.vlessProtocol))
{
vmessItem = ResolveStdVLESS(result);
ConfigHandler.UpgradeServerVersion(ref vmessItem);
}
else
{
msg = UIRes.I18N("NonvmessOrssProtocol");
return null;
}
}
catch
{
msg = UIRes.I18N("Incorrectconfiguration");
return null;
}
return vmessItem;
}
private static VmessItem ResolveVmess4Kitsunebi(string result)
{
VmessItem vmessItem = new VmessItem
{
configType = (int)EConfigType.Vmess
};
result = result.Substring(Global.vmessProtocol.Length);
int indexSplit = result.IndexOf("?");
if (indexSplit > 0)
{
result = result.Substring(0, indexSplit);
}
result = Utils.Base64Decode(result);
string[] arr1 = result.Split('@');
if (arr1.Length != 2)
{
return null;
}
string[] arr21 = arr1[0].Split(':');
string[] arr22 = arr1[1].Split(':');
if (arr21.Length != 2 || arr21.Length != 2)
{
return null;
}
vmessItem.address = arr22[0];
vmessItem.port = Utils.ToInt(arr22[1]);
vmessItem.security = arr21[0];
vmessItem.id = arr21[1];
vmessItem.network = Global.DefaultNetwork;
vmessItem.headerType = Global.None;
vmessItem.remarks = "Alien";
vmessItem.alterId = 0;
return vmessItem;
}
private static VmessItem ResolveSip002(string result)
{
Uri parsedUrl;
try
{
parsedUrl = new Uri(result);
}
catch (UriFormatException)
{
return null;
}
VmessItem server = new VmessItem
{
remarks = parsedUrl.GetComponents(UriComponents.Fragment, UriFormat.Unescaped),
address = parsedUrl.IdnHost,
port = parsedUrl.Port,
};
// parse base64 UserInfo
string rawUserInfo = parsedUrl.GetComponents(UriComponents.UserInfo, UriFormat.Unescaped);
string base64 = rawUserInfo.Replace('-', '+').Replace('_', '/'); // Web-safe base64 to normal base64
string userInfo;
try
{
userInfo = Encoding.UTF8.GetString(Convert.FromBase64String(
base64.PadRight(base64.Length + (4 - base64.Length % 4) % 4, '=')));
}
catch (FormatException)
{
return null;
}
string[] userInfoParts = userInfo.Split(new char[] { ':' }, 2);
if (userInfoParts.Length != 2)
{
return null;
}
server.security = userInfoParts[0];
server.id = userInfoParts[1];
NameValueCollection queryParameters = HttpUtility.ParseQueryString(parsedUrl.Query);
if (queryParameters["plugin"] != null)
{
return null;
}
return server;
}
private static readonly Regex UrlFinder = new Regex(@"ss://(?<base64>[A-Za-z0-9+-/=_]+)(?:#(?<tag>\S+))?", RegexOptions.IgnoreCase);
private static readonly Regex DetailsParser = new Regex(@"^((?<method>.+?):(?<password>.*)@(?<hostname>.+?):(?<port>\d+?))$", RegexOptions.IgnoreCase);
private static VmessItem ResolveSSLegacy(string result)
{
var match = UrlFinder.Match(result);
if (!match.Success)
return null;
VmessItem server = new VmessItem();
var base64 = match.Groups["base64"].Value.TrimEnd('/');
var tag = match.Groups["tag"].Value;
if (!Utils.IsNullOrEmpty(tag))
{
server.remarks = Utils.UrlDecode(tag);
}
Match details;
try
{
details = DetailsParser.Match(Encoding.UTF8.GetString(Convert.FromBase64String(
base64.PadRight(base64.Length + (4 - base64.Length % 4) % 4, '='))));
}
catch (FormatException)
{
return null;
}
if (!details.Success)
return null;
server.security = details.Groups["method"].Value;
server.id = details.Groups["password"].Value;
server.address = details.Groups["hostname"].Value;
server.port = int.Parse(details.Groups["port"].Value);
return server;
}
private static readonly Regex StdVmessUserInfo = new Regex(
@"^(?<network>[a-z]+)(\+(?<streamSecurity>[a-z]+))?:(?<id>[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})-(?<alterId>[0-9]+)$");
private static VmessItem ResolveStdVmess(string result)
{
VmessItem i = new VmessItem
{
configType = (int)EConfigType.Vmess,
security = "auto"
};
Uri u = new Uri(result);
i.address = u.IdnHost;
i.port = u.Port;
i.remarks = u.GetComponents(UriComponents.Fragment, UriFormat.Unescaped);
var q = HttpUtility.ParseQueryString(u.Query);
var m = StdVmessUserInfo.Match(u.UserInfo);
if (!m.Success) return null;
i.id = m.Groups["id"].Value;
if (!int.TryParse(m.Groups["alterId"].Value, out int aid))
{
return null;
}
i.alterId = aid;
if (m.Groups["streamSecurity"].Success)
{
i.streamSecurity = m.Groups["streamSecurity"].Value;
}
switch (i.streamSecurity)
{
case "tls":
// TODO tls config
break;
default:
if (!string.IsNullOrWhiteSpace(i.streamSecurity))
return null;
break;
}
i.network = m.Groups["network"].Value;
switch (i.network)
{
case "tcp":
string t1 = q["type"] ?? "none";
i.headerType = t1;
// TODO http option
break;
case "kcp":
i.headerType = q["type"] ?? "none";
// TODO kcp seed
break;
case "ws":
string p1 = q["path"] ?? "/";
string h1 = q["host"] ?? "";
i.requestHost = Utils.UrlDecode(h1);
i.path = p1;
break;
case "http":
case "h2":
i.network = "h2";
string p2 = q["path"] ?? "/";
string h2 = q["host"] ?? "";
i.requestHost = Utils.UrlDecode(h2);
i.path = p2;
break;
case "quic":
string s = q["security"] ?? "none";
string k = q["key"] ?? "";
string t3 = q["type"] ?? "none";
i.headerType = t3;
i.requestHost = Utils.UrlDecode(s);
i.path = k;
break;
default:
return null;
}
return i;
}
private static VmessItem ResolveStdVLESS(string result)
{
VmessItem item = new VmessItem
{
configType = (int)EConfigType.VLESS,
security = "none"
};
Uri url = new Uri(result);
item.address = url.IdnHost;
item.port = url.Port;
item.remarks = url.GetComponents(UriComponents.Fragment, UriFormat.Unescaped);
item.id = url.UserInfo;
var query = HttpUtility.ParseQueryString(url.Query);
item.flow = query["flow"] ?? "";
item.security = query["encryption"] ?? "none";
item.streamSecurity = query["security"] ?? "";
item.sni = query["sni"] ?? "";
item.network = query["type"] ?? "tcp";
switch (item.network)
{
case "tcp":
item.headerType = query["headerType"] ?? "none";
item.requestHost = Utils.UrlDecode(query["host"] ?? "");
break;
case "kcp":
item.headerType = query["headerType"] ?? "none";
item.path = Utils.UrlDecode(query["seed"] ?? "");
break;
case "ws":
item.requestHost = Utils.UrlDecode(query["host"] ?? "");
item.path = Utils.UrlDecode(query["path"] ?? "/");
break;
case "http":
case "h2":
item.network = "h2";
item.requestHost = Utils.UrlDecode(query["host"] ?? "");
item.path = Utils.UrlDecode(query["path"] ?? "/");
break;
case "quic":
item.headerType = query["headerType"] ?? "none";
item.requestHost = query["quicSecurity"] ?? "none";
item.path = Utils.UrlDecode(query["key"] ?? "");
break;
case "grpc":
item.path = Utils.UrlDecode(query["serviceName"] ?? "");
break;
default:
return null;
}
return item;
}
#endregion
}
}