I need to combine two urls, but it seems that UriBuilder doesn't support url's with ../../ in them. Is my only option to code this by hand? I'm trying something like this :
Uri pageUri = new Uri("http://site.com/a/b/c.html");
string redirectUrl = "../../x.html";
UriBuilder builder = new UriBuilder(pageUri);
builder.Path += redirectUrl;
Thanks for any tips on how to do this the right way.
You could also to use:
Uri redirect = new Uri(
new Uri("http://site.com/a/b/c.html"), "../../x.html");
This is working fine for me. You tried to call builder.Uri.OriginalString to get the full address back?
Related
I have this link: www.axams-freizeitzentrum.com/ruifach-stadion.htm
when I try to create an Uri using this code:
var link = new Uri("www.axams-freizeitzentrum.com/ruifach-stadion.htm");
this will return
Invalid URI: The format of the URI could not be determined.
what is wrong?
Check possible reasons here: http://msdn.microsoft.com/en-us/library/z6c2z492(v=VS.100).aspx
You need to put the protocol prefix in front the address, i.e. in your case "http://"
var link = new Uri("http://www.axams-freizeitzentrum.com/ruifach-stadion.htm");
Uris need a scheme name.
var link = new Uri("http://www.axams-freizeitzentrum.com/ruifach-stadion.htm");
How do I use either webclient or httpwebrequest to do two things:
1)Say after downloading the resource as a string using:
var result = x.DownloadString("http://randomsite.com);
there's a relative url(also query string):
Click here to get your name and age
how do I click(follow) on that link using webclient? after initially loading the resource in result. i was able to use htmlagilitypack to isolate the href but I would now like to follow it in code.
2) If the httpwebrequest does not redirect but instead loads the same page with different parameters how would i use webclient to retrieve the new url that is generated?
i.e if i call
var result = x.DownloadString("http://randomsite.com);
but this actually calls
http://randomsite.com/q?site=default
I then want to retrieve the second url
Thanks in advance
You can construct the url from the link and the link that you just downloaded like this:
Uri baseUri = new Uri("http://randomsite.com");
Uri myUri = new Uri(baseUri, "/q?name=john&age=50");
Console.WriteLine(myUri.ToString()); // gives you http://randomsite.com/q?name=john&age=50
This also works if you base Url has url parameters.
As for the second question, i guess you meant that the request was redirected and you want that url instead? Then the easiest way to do so is to sub-class WebClient described here.
Uri baseUri = new Uri("http://randomsite.com");
using(var client=new WebClient())
{
var result = client.DownloadString(myUri);
//get href via HtmlAgilityPack...
Uri myUri = new Uri(baseUri, "/q?name=john&age=50");
result = client.DownloadString(myUri);
}
My question is regarding passing an URL to HttpWebRequest without escaping, I searched the forums and internet, but I didn't find a good solution for it.
I have following URL:string URL= www.website.com/sub/redirec\t\bs\dd
So when I create an uri like this:
Uri uri = new Uri(URL);
HttpWebRequest request = (HttpWebRequest) WebRequest.Create(uri);
In this case on a get method I will get following URL:www.website.com/sub/redirect%5Ct%5Cbc%5Cdd
This sign "\" will be replaced by "%5C". What is crucial for me not to happen?
I can avoid that by:
Uri uri = new Uri(URL, true); //bool dontEscape
But this constructor is obsolete. How to have same effect without using obsolete?
use this
Uri uri = new Uri(Uri.EscapeUriString(URL));
Can I assign a URL to Url.AbsoluteUri in ASP.NET?
No, it's a read-only property.
You can create a new Uri though:
var url = new Uri("http://absoluteurl.example.com");
// url.AbsoluteUri is now "http://absoluteurl.example.com"
No, you can't. But you can create a Uri with the desire AbsoluteUri by constructing one:
Uri url = new Uri("http://www.google.com");
No, you cannot, it is derived from the URI. See the MSDN documentation for Uri.AbsoluteUri.
Example from MSDN
Uri baseUri = new Uri("http://www.contoso.com");
Uri myUri = new Uri(baseUri,"catalog/shownew.htm?date=today");
Often I want to change just one part of a URI and get a new URI object back.
In my current dilemma, I want to append .nyud.net, to use the CoralCDN.
I have a fully qualified URI fullUri. How can I, in effect, do this:
fullUri.Host = fullUri.Host + ".nyud.net";
This needs to work for almost any URL, and the PORT of the request needs to be maintained.
Any help would be much appreciated.
You can use an UriBuilder to modify individual parts of an Uri:
Uri uri = new Uri("http://stackoverflow.com/questions/2163191/");
UriBuilder builder = new UriBuilder(uri);
builder.Host += ".nyud.net";
Uri result = builder.Uri;
// result is "http://stackoverflow.com.nyud.net/questions/2163191/"