i read about httphandler and they use rawurl and then they said :
For example, suppose you rewrote the HTTP handler that processes image requests so that
it is based on the query string instead of the file name
When you make a url rewrite the Request.RawUrl is shown the url that user see on the bar, there you do not have the query strings that you have rewrite.
For example if you rewrite the www.site.com/2/product to www.site.com/product.aspx?id=2 to been able to read the id you need to use the Query string, because the RawUrl did not have it.
HttpRequest.RawUrl Property Gets the raw URL of the current request.
see more http://msdn.microsoft.com/en-us/library/system.web.httprequest.rawurl(v=vs.110).aspx
html addresses use QueryString property to pass values between pages
http://www.localhost.com/Webform2.aspx?name=Atilla&lastName=Ozgur
Webform2.aspx this is the page your browser will go.
name=Atilla you send a name variable which is set to Atilla
lastName=Ozgur you send a lastName variable which is set to Ozgur
Related
I get a returned url from using facebook api:
http://www.example.com/#access_token=BAAGgUj7asdasdasdasda4z3cBAFD5ZAyTOMIxtBpjIHsNwLfZC6L9gZAIdSIt3bKP96rg7yAlplMBDA9ZCndAKS9a7m4oRmRmJAxSdCueefweWJrlq3vQv3XaGqTOLofEMjJIVNCYZD&expires_in=0
But i am not sure how to get the token value? As its not in query string or Request.url
Any help?
You can't, assuming this is passed in on the current request, as anything after the # is never sent to the server.
You can capture it in JavaScript and use AJAX to send it to the server, but this will be on a different request.
If you mean you have this URL not from the current request, you can use the Uri class to parse a full URL and get the fragment:
var fragment = new Uri(theUri).Fragment;
var token = fragment.Split(new [] {'&','='}, StringSplitOptions.None)[1];
You can use HttpUtility.ParseQueryString to parse the URL then you can get the value by name e.g.
NameValueCollection query = HttpUtility.ParseQueryString(querystring);
string token = query["token"];
Check this Retrieving Anchor Link In URL for ASP.Net
you cannot get it from the server side, you will need to take if from client side first then pass it to the server in a hidden field or something similar
You have to look for "%23", because "#" is url-encoded to "%23"
reference:
http://www.w3schools.com/tags/ref_urlencode.asp
But you have to know also, that anchors are not available on server side!
Here is the thing:
Let's say I have a base URL like this:
www.mysite.com?my_first_param=1&my_second_param=2
But now I want to add a new parameter to my URL:
www.mysite.com?my_first_param=1&my_second_param=2&my_redirect_site=www.myothersite.com
Imagine that I am using a service where they add new tracking parameters to my URL. For example:
first_tracking=value1&second_value=value2
Since my BASE url already has a "?" the parameters are added with a "&", so my final URL would look like this:
www.mysite.com?my_first_param=1&my_second_param=2&my_redirect_site=www.myothersite.com&first_tracking=value1&second_value=value2
This is a correct URL with several parameters, but when I do the redirect to www.myothersite.com, since the parameters start with a "&", they get lost. Would it be correct to add the tracking parameters with a starting "?" ? Like this:
www.mysite.com?my_first_param=1&my_second_param=2&my_redirect_site=www.myothersite.com?first_tracking=value1&second_value=value2
If not, what would be a good approach for dealing with this? I believe is responsibility of the redirect to pass through the tracking parameters to the redirect URL.
You should URLencode each param name and value properly, so if the map of params you want is this:
my_first_param => 1
my_second_param => 2
my_redirect_site => www.myothersite.com?first_tracking=value1&second_value=value2
then you should pass this as the query string:
?my_first_param=1&my_second_param=2&my_redirect_site=www.myothersite.com%3Ffirst_tracking%3Dvalue1%26second_value%3Dvalue2
You should be using a library which does this already to build up URIs to handle this encoding for you.
No, you can't have a second question mark in a URL.
Furthermore, if you have ampersands in the redirect URL, they will be seen as separate parameters for the main URL, and not seen as connected to the redirect URL.
If you want to do a redirect like this, you need to URLEncode the whole of the redirected URL. There are standard functions in most web-facing languages to do this.
Encode the parameter, "?" would be replaced by %3F
It depends on the amount of control you have over the service adding the tracking parameters.
Can you change the url after the parameters have been added?
If you can, then you should use a url builder to add the tracking parameters to your redirect url, then url encode that url entriely, tracking parameters included.
If you are not in control and a third party modifies your url, then you will have to do this when you redirect, read the parameters in the url, take your redirect url and the tracking parameters, add the tracking parameters to the redirect url before redirect.
I have an URL with the following format:
http://www.mysite.com/login.aspx?ref=~/Module/MyPage.aspx?par=1&par2=hello&par3=7
I use the content of the QueryString it to Redirect the user back to the page he was before logging in. In order to keep also the status of the page I need the parameters in the QueryString. The number of parameters changes depending on the Page calling the Login and its status.
Let's say I want to store everything in the URL after ref in the redirectURL variable. I tried:
redirectURL = Request.QueryString("ref") // "~/Module/MyPage.aspx?par=1"
it gets everything after ref but ignores everything after the &(included). If I use:
redirectURL =Request.Url.Query // "ref=~/Module/MyPage.aspx?par=1&par2=hello&par3=7"
it gets everything, ref included. In order to achieve my goal I need just to remove the first 4 characters from the redirectURL. But I think this solution is a bit "forced" and I am sure there should be some ASP.NET function that accomplish this task.
The &s in your URL are creating additional querystring arguments.
You need to escape the value of the ref parameter before putting it in the querystring.
This will replace the &s with %26.
To do this, call Uri.EscapeDataString().
When you fetch the property from Request.QueryString, it will automatically decode it.
Consider Encoding "~/Module/MyPage.aspx?par=1&par2=hello&par3=7" before passing it to the url.
Eg.:
String MyURL = "http://www.mysite.com/login.aspx?ref=" +
Server.UrlEncode("~/Module/MyPage.aspx?par=1&par2=hello&par3=7");
And then, you can get the redirectURL using:
String redirectURL = Request.QueryString("ref");
I have an MVC3 Action that takes a parameter (a URL) that may have a query string in it. My action signature looks like this:
GetUrl(string url)
I expect to be able to send it urls, and it works every time unless there is a query string in the url. For example, if I navigate to:
MyController/GetUrl/www.google.com
the url parameter comes accross as "www.google.com" -Perfect. However, if I send
MyController/GetUrl/www.google.com/?id=3
the url parameter comes accross as "www.google.com/" How do I get MVC3 to give me the whole URL in that parameter? -Including the query string?
It's simple enough to just URL.Encode the passed in URL on the page but you're opening your self to some possible security problems.
I would suggest you encrypt the url then encode it then pass that as your value, the protects you from having people just passing in anything into your app.
That's because system considers id=3 as its own query string. When you construct the link in the view, you need to use #Url.Encode to convert raw url string to encoded string to be accepted as parameter of the controller.
In VS2003, I am trying to find out the particular page where the request is coming from. I want to identify the exact aspx page name.
Is there a way to only get the page name or some how strip the page name?
Currently I am using the following instruction...
string referencepage = HttpContext.Current.Request.UrlReferrer.ToString();
and I get the following result...
"http://localhost/MyPage123.aspx?myval1=3333&myval2=4444;
I want to get the result back with out any query string parameters and be able to identify the page MyPage123.aspx accurately...
How do I do that??
Instead of calling .ToString on the Uri, use the AbsolutePath property instead:
string referencepage = HttpContext.Current.Request.UrlReferrer.AbsolutePath;
This should get you "/MyPage123.aspx" in your case.
Edit: Had LocalPath instead of AbsolutePath by mistake
Look at the Segments property of the URI class (which is what HttpContext.Current.Request.UrlReferrer returns).
Something like HttpContext.Current.Request.UrlReferrer.Segments[1] (changing the 1 indexer to get the correct segment you require).