support scaning QR code

src/main/scala/com/github/shadowsocks/utils/ShadowParser.scala

@@ -0,0 +1,34 @@
+package com.github.shadowsocks.utils
+
+import com.github.shadowsocks.database.Profile
+import android.net.Uri
+import android.util.{Log, Base64}
+
+object ShadowParser {
+  val TAG = "ShadowParser"
+  def parse (data: String): Option[Profile] = {
+    try {
+      Log.d(TAG, data)
+      val uri = Uri.parse(data.trim)
+      if (uri.isOpaque && uri.getScheme == "shadow") {
+        val encoded = data.replace("shadow:", "")
+        val content = new String(Base64.decode(encoded, Base64.NO_PADDING), "UTF-8")
+        val info = content.split('@')
+        val encinfo = info(0).split(':')
+        val serverinfo = info(1).split(':')
+
+        val profile = new Profile
+        profile.name = serverinfo(0)
+        profile.host = serverinfo(0)
+        profile.remotePort = serverinfo(1).toInt
+        profile.localPort = 1080
+        profile.method = encinfo(0)
+        profile.password = encinfo(1)
+        return Some(profile)
+      }
+    } catch {
+      case ex : Exception => Log.e(TAG, "parser error", ex)// Ignore
+    }
+    None
+  }
+}