Add fallback support for different names of Shadowsocks plugins

Fix compatibility problem with some non-standard v2rayN subscription.
Fix running program from directory other than program folder may cause not using pref.yml as default.
Optimize codes.

src/main.cpp

@@ -99,6 +99,10 @@ void signal_handler(int sig)
 
 int main(int argc, char *argv[])
 {
+#ifndef _DEBUG
+    std::string prgpath = argv[0];
+    setcd(prgpath); //first switch to program directory
+#endif // _DEBUG
     if(fileExist("pref.yml"))
         pref_path = "pref.yml";
     chkArg(argc, argv);
@@ -125,10 +129,6 @@ int main(int argc, char *argv[])
     signal(SIGINT, signal_handler);
 
     SetConsoleTitle("SubConverter " VERSION);
-#ifndef _DEBUG
-    std::string prgpath = argv[0];
-    setcd(prgpath); //first switch to program directory
-#endif // _DEBUG
     readConf();
     if(!update_ruleset_on_request)
         refreshRulesets(rulesets, ruleset_content_array);

src/misc.cpp

@@ -451,6 +451,20 @@ std::string getSystemProxy()
 #endif // _WIN32
 }
 
+void trim_self_of(std::string &str, char target, bool before, bool after)
+{
+    if (!before && !after)
+        return;
+    std::string::size_type pos = str.size() - 1;
+    if (after)
+        pos = str.find_last_not_of(target);
+    if (pos != std::string::npos)
+        str.erase(pos + 1);
+    if (before)
+        pos = str.find_first_not_of(target);
+    str.erase(0, pos);
+}
+
 std::string trim_of(const std::string& str, char target, bool before, bool after)
 {
     if (!before && !after)

src/misc.h

@@ -55,6 +55,7 @@ std::string ACPToUTF8(const std::string &str_src);
 std::string trim_of(const std::string& str, char target, bool before = true, bool after = true);
 std::string trim(const std::string& str, bool before = true, bool after = true);
 std::string trim_quote(const std::string &str, bool before = true, bool after = true);
+void trim_self_of(std::string &str, char target, bool before = true, bool after = true);
 std::string getSystemProxy();
 std::string rand_str(const int len);
 bool is_str_utf8(const std::string &data);

src/speedtestutil.cpp

@@ -85,6 +85,7 @@ void explodeVmess(std::string vmess, const std::string &custom_port, nodeInfo &n
         break;
     }
 
+    add = trim(add);
     node.linkType = SPEEDTEST_MESSAGE_FOUNDVMESS;
     node.group = V2RAY_DEFAULT_GROUP;
     node.remarks = ps;

src/subexport.cpp

@@ -1548,6 +1548,7 @@ std::string netchToSurge(std::vector<nodeInfo> &nodes, const std::string &base_c
                 switch(hash_(plugin))
                 {
                 case "simple-obfs"_hash:
+                case "obfs-local"_hash:
                     if(pluginopts.size())
                         proxy += "," + replace_all_distinct(pluginopts, ";", ",");
                     break;
@@ -2299,6 +2300,7 @@ void netchToQuanX(std::vector<nodeInfo> &nodes, INIReader &ini, std::vector<rule
                 switch(hash_(plugin))
                 {
                     case "simple-obfs"_hash:
+                    case "obfs-local"_hash:
                         if(pluginopts.size())
                             proxyStr += ", " + replace_all_distinct(pluginopts, ";", ", ");
                         break;