Are there any helper classes available in .NET to allow me to build a Url?
For example, if a user enters a string:
stackoverflow.com
and i try to pass that to an HttpWebRequest
:
WebRequest.CreateHttp(url);
It will fail, because it is not a valid url (it has no prefix).
What i want is to be able to parse the partial url the user entered:
Uri uri = new Uri(url);
and then fix the missing pieces:
if (uri.Port == 0)
uri.Port = 3333;
if (uri.Scheme == "")
uri.Scheme = "https";
Does .NET have any classes that can be used to parse and manipulate Uri's?
The UriBuilder class can't do the job
The value that the user entered (e.g. stackoverflow.com:3333
) is valid; i just need a class to pick it apart. i tried using the UriBuilder
class:
UriBuilder uriBuilder = new UriBuilder("stackoverflow.com:3333");
unfortunately, the UriBuilder class is unable to handle URIs:
- uriBuilder.Path =
3333
- uriBuilder.Port =
-1
- uriBuidler.Scheme =
stackoverflow.com
So i need a class that can understand host:port
, which especially becomes important when it's not particularly http
, but could be.
Bonus Chatter
Console application.
From the other question
Some examples of URL's that require parsing:
server:8088
server:8088/func1
server:8088/func1/SubFunc1
http://server
http://server/func1
http://server/func/SubFunc1
http://server:8088
http://server:8088/func1
http://server:8088/func1/SubFunc1
magnet://server
magnet://server/func1
magnet://server/func/SubFunc1
magnet://server:8088
magnet://server:8088/func1
magnet://server:8088/func1/SubFunc1
http://[2001:db8::1]
http://[2001:db8::1]:80
The format of a Url is:
foo://example.com:8042/over/there?name=ferret#nose
\_/ \_________/ \__/\_________/\__________/ \__/
| | | | | |
scheme host port path query fragment
Bonus Chatter
Just to point out again that UriBuilder does not work:
See Question&Answers more detail:
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