c# - 解析变量 URI (RegEx, Uri, String-Functions?) c#

Question

我正在编写一个 RTSP 客户端模块，为此，我需要解析一个非常可变的 URI。但我完全不知道应该使用哪种方法(最安全)以及如何实现这一点。

示例 URI 可能如下所示:

rtsp://192.168.1.100:554/videocam/media/1/video/1
\_/    \_______________/\_______/\______________/
 |              |           |           |
scheme      authority     [sub]     [mediacontrol]

但也有其他可能性:

192.168.1.100/videocam/media/1/video/1
192.168.1.100:6000/media/1/video/1
192.168.1.100:6000/videocam

我需要以下信息:

IP         | how can I recognise this pattern [num].[num].[num].[num]?
Port       | easy if the string contains rtsp://, but what about just a number? 1-65555
Sub        | Optional subpath, can completely vary!
MediaLevel | Optional MediaLevel (indicator for stream/track), 
             not to be confused with the path. MediaLevel can be also just like this: track1 or m1s3 or media1/video1.. see?
             I can't go for the slash, also the path also can contain multiple slashes

也许有一个用于此类任务的库？

谢谢你。

Answer 1

var uri = new Uri("rtsp://192.168.1.100:554/videocam/media/1/video/1");
var host = uri.Host;
var port = uri.Port;
var sub = uri.Segments[1];
var mlevel = uri.Segments.Skip(2).ToArray();