feat: support Trojan share url

ProxyDecoder/Trojan.py

@@ -0,0 +1,143 @@
+#!/usr/bin/python
+# -*- coding:utf-8 -*-
+
+import re
+from ProxyDecoder import baseFunc
+
+def __trojanCommonDecode(url: str) -> dict:
+    """
+    Trojan标准分享链接解码
+
+    FORMAT: trojan://$(UUID)@server:port?{fields}#$(remark)
+
+        type -> tcp / kcp / ws / http / quic / grpc
+
+        encryption -> none
+
+        security -> none / tls / xtls
+
+        path -> WebSocket / HTTP/2 / http obfs
+
+        host -> WebSocket / HTTP/2 / http obfs
+
+        headerType -> mKCP / QUIC UDP obfs -> none / srtp / utp / wechat-video / dtls / wireguard
+                   -> TCP (http obfs) -> http
+
+        seed -> mKCP seed
+
+        quicSecurity -> QUIC method
+
+        key -> QUIC key
+
+        serviceName -> gRPC Service Name
+
+        mode -> gRPC transport mode -> gun / multi / guna
+
+        sni -> TLS / XTLS SNI
+
+        alpn -> TLS / XTLS ALPN
+
+        flow -> XTLS flow type -> xtls-rprx-origin / xtls-rprx-direct / xtls-rprx-splice
+
+    """
+    match = re.search(r'^trojan://([\S]+?)(#[\S]*)?$', url) # trojan://...#REMARK
+    remark = baseFunc.urlDecode(
+        match[2][1:] if match[2] is not None else ''
+    )
+    match = re.search(
+        r'^([\S]+)@([a-zA-Z0-9.:\-_\[\]]+):([0-9]+)/?([\S]*)$', match[1]
+    )
+    info = {
+        'server': baseFunc.formatHost(match[2]),
+        'port': int(match[3]),
+        'passwd': baseFunc.urlDecode(match[1]),
+        'remark': remark
+    }
+    params = baseFunc.paramSplit(match[4])
+    if 'type' not in params:
+        params['type'] = 'tcp' # default -> tcp
+    stream = {
+        'type': params['type']
+    }
+    if params['type'] == 'tcp':
+        if 'headerType' in params and params['headerType'] == 'http':
+            stream['obfs'] = {}
+            if 'host' in params:
+                stream['obfs']['host'] = params['host']
+            if 'path' in params:
+                stream['obfs']['path'] = params['path']
+    elif params['type'] == 'kcp':
+        if 'headerType' in params:
+            stream['obfs'] = params['headerType']
+        if 'seed' in params:
+            stream['seed'] = params['seed']
+    elif params['type'] == 'ws':
+        if 'host' in params:
+            stream['host'] = params['host']
+        if 'path' in params:
+            try:
+                stream['ed'], stream['path'] = baseFunc.splitEdParam(params['path'])
+            except:
+                stream['path'] = params['path']
+    elif params['type'] == 'http':
+        if 'host' in params:
+            stream['host'] = params['host']
+        if 'path' in params:
+            stream['path'] = params['path']
+    elif params['type'] == 'quic':
+        if 'headerType' in params:
+            stream['obfs'] = params['headerType']
+        if 'quicSecurity' in params:
+            stream['method'] = params['quicSecurity']
+        if 'key' in params:
+            stream['passwd'] = params['key']
+    elif params['type'] == 'grpc':
+        if 'serviceName' in params:
+            stream['service'] = params['serviceName']
+        if 'mode' in params and params['mode'] == 'multi':
+            stream['mode'] = 'multi'
+    else:
+        raise Exception('Unknown network type')
+
+    if 'security' in params:
+        if params['security'] not in ['tls', 'xtls']:
+            raise Exception('Unknown security type')
+        secure = {
+            'type': params['security']
+        }
+        if 'sni' in params:
+            secure['sni'] = params['sni']
+        if 'alpn' in params:
+            secure['alpn'] = params['alpn']
+        if params['security'] == 'xtls' and 'flow' in params: # XTLS flow
+            if params['flow'] in ['xtls-rprx-origin', 'xtls-rprx-origin-udp443']:
+                secure['flow'] = 'xtls-origin'
+            elif params['flow'] in ['xtls-rprx-direct', 'xtls-rprx-direct-udp443']:
+                secure['flow'] = 'xtls-direct'
+            elif params['flow'] in ['xtls-rprx-splice', 'xtls-rprx-splice-udp443']:
+                secure['flow'] = 'xtls-splice'
+        stream['secure'] = secure
+    info['stream'] = stream
+    return info
+
+def trojanDecode(url: str) -> dict or None:
+    """
+    Trojan分享链接解码
+
+        链接合法:
+            return {
+                'type': 'trojan',
+                ...
+            }
+
+        链接不合法:
+            return None
+    """
+    if url[0:9] != 'trojan://':
+        return None
+    try:
+        result = __trojanCommonDecode(url)  # try Trojan common decode
+    except:
+        return None
+    result['type'] = 'trojan'
+    return result

ProxyDecoder/VLESS.py

@@ -2,7 +2,6 @@
 # -*- coding:utf-8 -*-
 
 import re
-import json
 from ProxyDecoder import baseFunc
 
 def __vlessCommonDecode(url: str) -> dict:
@@ -98,7 +97,6 @@ def __vlessCommonDecode(url: str) -> dict:
     else:
         raise Exception('Unknown network type')
 
-    secure = None
     if 'security' in params:
         if params['security'] not in ['tls', 'xtls']:
             raise Exception('Unknown security type')
@@ -116,7 +114,7 @@ def __vlessCommonDecode(url: str) -> dict:
                 secure['flow'] = 'xtls-direct'
             elif params['flow'] in ['xtls-rprx-splice', 'xtls-rprx-splice-udp443']:
                 secure['flow'] = 'xtls-splice'
-    stream['secure'] = secure
+        stream['secure'] = secure
     info['stream'] = stream
     return info
 

ProxyDecoder/decoder.py

@@ -6,6 +6,7 @@ from ProxyDecoder import Shadowsocks
 from ProxyDecoder import ShadowsocksR
 from ProxyDecoder import VMess
 from ProxyDecoder import VLESS
+from ProxyDecoder import Trojan
 
 def decode(url: str) -> dict or None:
     """
@@ -31,6 +32,8 @@ def decode(url: str) -> dict or None:
             return VMess.vmessDecode(url)
         elif scheme == 'vless':
             return VLESS.vlessDecode(url)
+        elif scheme == 'trojan':
+            return Trojan.trojanDecode(url)
     except:
         pass
     return None

demo.py

@@ -1,7 +1,7 @@
 import ProxyDecoder as Decoder
 import ProxyFilter as Filter
 
-url = 'vless://...'
+url = 'trojan://dnomd343@1.1.1.1:443?security=tls&type=tcp&headerType=http&host=ip.343.re'
 
 ret = Decoder.decode(url)
 print(ret)