C# - Htmlencode() For A Specific Tags Only?
Aug 20, 2010i have a long string dat can contain html tags. applying htmlencode will encode all the tags. but i want this method to leave some specific tags intact
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Dec 20, 2010I have a url which I wish to encode that contains a couple of encrypted querystring parameters:
[URL]
I've been asked by a client I'm working with to html encode this url. I've used HttpUtility.HtmlEncode() to do this. This returned the following:
[URL]
This appears to be correct as the '&' has been replaced with '&'. However a problem arises when I try to use HttpUtility.HtmlDecode() on this new value as I get the following returned:
[URL]
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>
</FTB:FreeTextBox>
but when i click on insert or update button, i get the following error :
A potentially dangerous Request.Form value was detected from the client ....
i tried this :
Text='<%# HttpUtility.HtmlDecode((string)Eval("Description"))%>'
bu it did not work ethier, and i got the error again. is there any way except turning validateRequest off.
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Feb 2, 2010For protect against XSS we should make all input from textboxes thoht Server.Htmlencode function.
1) If i let a input go thorgh Server.Htmlencode and save it in database. But what happen if i letter show this input data from database on browerser ...if database input data have <script> it will then make Xss!!!!.
2) I use Server.Htmlencode.. and the user write <b>ss<b>... (label.text = userinput.text;) and i WANT to show ss in browser. What shuld i do for make this happen ??
Mock Server.HtmlEncode - Returns Null Reference?
Nov 16, 2010I'm trying to mock Server.HtmlEncode(), but I keep having a null reference exception.I'm pretty new to the Moq framework, here is my code:
var context = new Mock<HttpContextBase>();
var request = new Mock<HttpRequestBase>();
var response = new Mock<HttpResponseBase>();
var session = new Mock<HttpSessionStateBase>();
var server = new Mock<HttpServerUtilityBase>();
server.Setup(svr => svr.HtmlEncode(It.IsAny<string>())).Returns((string s) => s);
context.Setup(ctx => ctx.Request).Returns(request.Object);
context.Setup(ctx => ctx.Response).Returns(response.Object);
context.Setup(ctx => ctx.Session).Returns(session.Object);
context.Setup(ctx => ctx.Server).Returns(server.Object);
I've also tried the following:
context.Setup(ctx => ctx.Server.HtmlEncode(It.IsAny<string>())).Returns((string s) => s);
I've found a solution but it seems an outdated solution as expect is replaced with setup.
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Feb 1, 2010We are using gridview to display data and detailsview to show details, update, insert, and delete as needed. I am a bit confused on whether or not htmlencode and htmldecode is needed when storing data from detailsview. Gridviews always use boundfields and I think encoding and decoding is built in. For detailsview we use mostly templatefields (eval(), bind()), some boundfields, and some data is stored in codebehind using e.values[] or e.newvalues[].Here is where I've got the idea:http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.detailsview.itemupdated.aspxIf I use the iteration and htmlencode, detailsview read only mode displays decoded data. However, gridview displays encoded data and of course update mode of detailsview. So, it seems like detailsview using htmlencode and htmldecode somewhat, but I am not clear as to what degree and what would be the best way to handle it.
View 2 Replies4.0 Framework Request Validation Will Not Allow Code-behind To Htmlencode Textboxes?
Jan 8, 2011I have a form that I have been getting submissions that have punctuation and special characters that trigger the potentially dangerous Request.Form value error. I have been trying use the httpUtility.htmlencode and Server.htmlencode method to sanitize textboxes and textareas.All my tests do not fire because the built-in request validation of the 4.0 framework prevents the code-behind from executing to perform the sanitization. I have included the ValidateRequest in the page header but no matter what I set it too it still does the same thing.
This is the code I have so far.
Session("RequestID") = Server.HtmlEncode(txtRequestID.Value)
Session("FirstName") = Server.HtmlEncode(txtInstFirstName.Text)
Session("LastName") = Server.HtmlEncode(txtInstLastName.Text) [code]....
What can I do to make this work? According to all the websites I have visited it should work.