CODEWITHSUNDEEP
c#encodingurlencode
lax
lax

Reputation: 219

Get string from Server.UrlEncode as uppercase

I want its output as uppercase. This is what I get on Server.UrlEncode("http://"): 

http%3a%2f%2f

but I need: 

http%3A%2F%2F

Is there built-in solution in C#?

The url encoded shall serve as signature base string (input to signature algorithm) to create digest (hash). The hash will then be verified by other system (java,php,etc), so they need to recreate the hash by signature reconstruction first.

Upvotes: 20

Views: 10401

Answers (5)

Saed Swedan
Saed Swedan

Reputation: 81

I encountered the same problem, I found the answer in this link:

WebUtility.UrlEncode or HttpUtility.UrlEncode

in-short you can use:

System.Net.WebUtility.UrlEncode

which encodes into uppercase hex values

Upvotes: 8

PlushEngineCell
PlushEngineCell

Reputation: 825

Uri.EscapeDataString("http://")

This code return 

http%3A%2F%2F

Upvotes: 25

SeregaKa
SeregaKa

Reputation: 71

This is very easy

Regex.Replace( encodedString, @"%[a-f\d]{2}", m => m.Value.ToUpper() )

I.e. replace all hex letter-digit combinations to upper case

Upvotes: 3

agent-j
agent-j

Reputation: 27943

This will uppercase all escaped characters in your string.

string url = "http://whatever.com/something";
string lower = Server.UrlEncode(url);
Regex reg = new Regex(@"%[a-f0-9]{2}");
string upper = reg.Replace(lower, m => m.Value.ToUpperInvariant());

Upvotes: 34

Dan Diplo
Dan Diplo

Reputation: 25349

Assuming "http" is always the first four characters then you simply split the string after "http", UrlEncode that part and then call ToUpper() on it. Then join back together with "http" as your prefix.

Upvotes: 0

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