maxRequestPathLength not in ASP.NET 4 documentation and doesn't work - asp.net

If I try to use the new maxRequestPathLength settings in an ASP.NET application it does not work. I get an unrecognized attribute error. I've tried using both ASP.NET Integrated and Classic application pools in IIS 7. What is also funny is that if you search for maxRequestPathLength on MSDN it is no where to be found in the documentation except in the list of new features for ASP.NET 4. What gives?

Apparently this setting name was changed and move to the registry under "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\HTTP\Parameters." The name is UrlSegmentMaxLength. The default value is 260. This particular setting limits the amount of characters allowed in each path segment of a URL. In https://stackoverflow.com/questions, "questions" would be a path segment.
Documentation for this can be found in the Microsoft knowledge base article on http.sys registry settings.

I've been struggling with this and with help of this post en several other forum post made it work for me. Here is my log and findings:
To allow longer url's then default, just change this in your web.config (.NET 4.0 and up)
<httpRuntime maxUrlLength="1024" relaxedUrlToFileSystemMapping="true"/>
Note: if relaxedUrlToFileSystemMapping is set te to false, urlsegments larger then 260 wil fail with an IOException PathTooLongException:
The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters.
To allow longer url segments then the default 260 add/change this registry setting:
"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\HTTP\Parameters."
The name is UrlSegmentMaxLength. (Dword)
And most importantly after changing this setting. REBOOT your machine.
I've tried IIS-Reset and net stop http / net start http, but this did not make the change effective.
Currently i have 2 machines available.
My local dev-machin (Windows 7 / IIS 7.5) and a dev-server (Windows 2003 / IIS 6.0)
Both took a reboot to make the changes effective.

This had me foxed for a little while. The way to do this in .NET 4 is like this:
<httpRuntime maxUrlLength="1024" relaxedUrlToFileSystemMapping="true"/>
in the <system.web> section of the web.config. I did this and it worked.

Related

How can I set my application to display everything in English on the live server (Despite live server's settings)?

I am having this problem with my ASP.Net application and I have no idea how I can solve it: In order for my date-related parameters to be the same over the whole application, I am taking the date from SQL Server via a stored procedure.
My problem is that when I am testing on the local server, everything works ok (everything is displayed in English as it should be), but when I am publishing it on live (on my company's server), the date-related parameters (ex. month names) are displayed in my country's language (which is not English). I assume it has to do with the settings of the live server. Is there any chance I could somehow set inside my application that the language should be English, despite of localization, settings etc. of the live server?
You can set it in web.config
<globalization uiCulture="en" culture="en-US" />
Look here:
http://msdn.microsoft.com/en-us/library/bz9tc508(v=vs.100).aspx
You can manage this settings in your Web.Config by specifying globalization Element. For reference see the following url: http://msdn.microsoft.com/en-us/library/hy4kkhe0%28v=vs.100%29.aspx
The attribute to set you interest in are "culture" and "uiCulture".

Need workaround for & in url, iis7

I am moving old asp.net website from windows 2003 to windows 2008 R2.
Some pages have '&' in url and it works fine on 2003 but on 2008 any '&' before '?' gives 'Bad Request'.
Those pages have serious impact on website popularity, 7% of all visits start here, so it is important to handle them properly without changing url.
Any ideas how to handle such urls on iis7 / asp.net 2.0?
PS: validateRequest doesn't work
Try adding the following in web.config:
<system.web>
<httpRuntime requestPathInvalidCharacters="*,:,\" />
...
</system.web>
Notice that I have removed & from the list of invalid characters in a path.
Here's a link that may get you where you want to to be, but if you read the details, I'd personally add this to the "do so at your own risk" category...take Microsoft's word for at least one of the "fixes":
Important If you enable this fix, you increase the attack surface of the application. You should not enable this fix unless the application requires it.
DWORD HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ASP.NET VerificationCompatibility = 1
The others should be self-explanatory on risk just by the setting names (e.g. AllowRestrictedCharacters, ValidateRequest=False):
That said, you should think about updating those "legacy" urls and do a 301 Permanent redirect to account for your SEO/popularity...

IIS 6 Http Handler with no predefined file extension

Well i have a http handler that is set up like this
<add name="DocumentHandler" verb="*" path="/LinkDocumentHandler/*" type="MyTestProject.LinkDocumentHandler, MyTestProject" />
(Remove name in IIS 6 and move it to the right section)
This works great in my VS webserver all requests that are going to the directory LinkDocumentHandler are handled by the handler..
Now when i come to IIS 6.0 this did not work so i googled a bit and found out that i have to define what file types IIS 6.0 will pass to asp.net well i can't predict all of them so that would not be so nice..
I tried to change /LinkDocumentHandler/* to /LinkDocumentHandler.aspx/* but that did not help..
So is there any way to force IIS 6.0 to pass all file requests with that sub dir to my http handler??
In IIS I added a Wildcard and unchecked "check if file exists" and it just worked (used the same dll that .aspx uses)!
This is very difficult to do in IIS 6, what you really need to do for this is write an ISAPI filter. Beyond that, IIS mappings are pretty much controlled by the file extension so it's very difficult to get it to pass all requests to asp.net.
There's a similar discussion here, where it appears the OP might have found a "partial" solution.

How do I configure IIS to handle really large file uploads?

Platform: IIS 6, ASP.Net 2.0 (.Net 3.5), Server 2003.
I'm building an application that accepts files from a user, processes them, and returns a result. The file is uploaded using HTTP POST to an ASP.Net web form. The application is expecting some large files (hundreds of MB).
I'm using SWFUpload to accomplish the upload with a nice progress bar, but that's not contributing to the issue, because when I bypass it using a standard HTML form pointing at my upload accepter page, I get the exact same error. When using the progress bar, the upload continues to 100%, then fails. With a standard form, the behavior appears to be the same.
I'm having a problem right now uploading a file that's about 150MB. I've changed every settings I can find, but still no luck.
Here's a summary of what I've changed so far:
In Web.config:
Added this inside system.web:
<httpRuntime executionTimeout="3600" maxRequestLength="1536000"/>
In machine.config:
Inside system.web, changed:
<processModel autoConfig="true" />
to:
<processModel autoConfig="true" responseDeadlockInterval="00:30:00" responseRestartDeadlockInterval="00:30:00" />
and in MetaBase.xml:
Changed:
AspMaxRequestEntityAllowed="204800"
to:
AspMaxRequestEntityAllowed="200000000"
When the upload fails, I get a 404 error from IIS. My web form does not begin processing, or at least, it doesn't make it to the Page_Load event. I threw an exception at the beginning of that handler, and it doesn't execute at all on large files.
Everything works fine with smaller files (I've tested up to about 5.5MB). I'm not exactly sure what file size is the limit, but I know that my limit needs to be higher than 150MB, since this is not the largest file that the client will need to upload.
Can anyone help?
Urlscan was active on all websites, and has it's own request entity length limit. I wasn't aware that Urlscan was running on our server because it was a global ISAPI filter, not running on my individual website.
Note: to locate global ISAPI filters, right click on the Web Sites folder in IIS Admin and click Properties, then on the ISAPI Filters tab.
(A note for googlers):
For IIS7 add below to web.config (I added above <system.serviceModel>):
<system.webServer>
<security>
<requestFiltering><requestLimits maxAllowedContentLength="262144000" /></requestFiltering> <!-- maxAllowedContentLength is in bytes. Defaults to 30,000,000 -->
</security>
</system.webServer>
When we ran into this issue we had to increase the buffer size limit according to this KB article:
http://support.microsoft.com/kb/944886/en-us
I know this mentions ASP, but I believe it worked for ASP.NET as well.
Edit: Here is a link that might be more relevant to your issue and provide other options:
http://weblogs.asp.net/jgalloway/archive/2008/01/08/large-file-uploads-in-asp-net.aspx
404 and missing Page_Load: IIS can only process the request once the complete POST is on the server. Therefore, if the POST fails (due to its size), it cannot fire the page's events.
You might try NeatUpload http://www.brettle.com/neatupload.
From the Manual: "By default, NeatUpload does not directly limit the size of uploads."
You can also try Velodoc XP Edition which has several advantages over NeatUpload including the fact that it uses ASP.NET Ajax extensions. See also the Velodoc web site for more information.
You say:
But 1536000 is only 1.5MB?

IIS VS 2008 / Web.config - wrong date format

can anyone help. I have recently moved servers, its IIS7 rather that our previous IIS6 but everything else is the same, i have set the region to the UK and all date formats plus system local .. I mean everything ..
But when a webpage asp.net is running on IIS7 it thinks the dates are another format..
This is really puzzling .. i did manage to fix it by putting in each web.config
<globalization culture="en-GB"/>
but i have to put it in everyone.. I know i can aslo put it in machine.config.
But i don't understand it, my other server works without modifications. I have checked the web.config and the machine.config on my old server and it has none of these additions
Any ideas?
Thanks
Make sure you have also ticked the box in Regional and Language Options (Advanced tab) to say "Apply all settings to the default user profile. The account that .Net runs under will remain as US unless you do this. Reboot.
Been there :)
Check the localization options on the box and see what it is set for--someone probably just selected en-US for the setup and forgot to tell anyone.

Resources