Url Rewriting vs. Routing - asp.net

I am making a making a new asp.net web forms site and would like to beautify my urls - I want to accept a url like this one "www.mysite.com/1-2,3" and turn it one like this "www.mysite.com/page.aspx?a=1&b=2&c=3". Which option is best for this task - IIS7 Url Rewriting or Routing in terms of performance and ease of maintenance. Btw I am planning to use medium trust shared hosting IIS7, maybe 6.
In the past I used PHP's mod_rewrite, which I was quite happy with, however now this whole site is being translated to ASP.NET, and I don't know which option to pick.
PS - I have already read this and this, however didn't find it clear enough for my problem.

I would make a strong argument for using routing. It keeps the request-resource resolution logic within your application, so it's very easy to add application-dependent logic when you need, and it eliminates the need to maintain synchronization between your application and a separate configuration resource.
Routing works great with traditional webforms.
URL rewriting is often (though not always) a compensation for a problem, rather than a solution - server software and frameworks still built around the older notion of web pages, which represent physical resources. However, web applications should react to requests as commands; but only relatively recent, modern web frameworks have begun to support that model natively. Routing is one of those developments.

I would strongly suggest to use routing,
it will in fact be more integrated with webforms in next version of the framework.
URL rewriting is more of a "hack" due to the lack of the routing in the first place. If you already have a project that you want to "shine up", then url rewriting will do just fine.
But when starting from scratch, I would definitely use routing.
Routing hides you application structure and makes you think more of your urls, as path to the content that you want to show, opposed to the path to some page with params.
And you don't have to keep track of 2 things when changing stuff, like you would with rewriting.
more in this article

IIS 5/6 used ISAPI filtering which was basically the equivalent of mod_rewrite for IIS. I hear that IIS7's url rewriting is a lot easier to manage and configure than ISAPI.

Well it depends on whether you're using classic ASP.Net or the new MVC framework. I don't have any experience with the MVC framework, but it sounds like it supports what you're looking for right out of the box.
On the classic ASP.Net side of things, we're currently using an IIS extension called ISAPI_Rewrite. It behaves similarly to Apache's mod_Rewrite and they have a free version you can use that has most of the power of the paid version ($100).

Related

ASP MVC - Routing Required?

I've been reading up on MVC2 which came in VS2010 and it sounds pretty interesting. I'm actually in the middle of a large multi-tenant application project, and have just started coding the UI. I'm considering changing to MVC as I'm not that far along at this point. I have some questions about the Routing capabilities, namely are they required to use MVC or can I more or less ignore Routing? Or do I have to setup a default routing record that will make things work like standard ASPX (as far as routing alone is concerned)?
The reason why I don't want to use Routing is because I've already defined a custom URL 'rewrite' mechanism of my own (which fires on session_start). In addition, I'm using jquery and opens-standards for the entire UI, and MVC's aspx overhead-free approach seems like a better fit based on how I've already started to build the application (I am not using viewstate at all, for example).
I guess my big concern is whether the routing can be ignored, of if I will have to re-implement my custom URL rewriting to work with MVC, and if that's the case, how would I do that? As a new Routing routine, or stick with the session_start (if that's even possible?).
Lastly, I don't want to use anything even remotely 'intelligent/readable' for the url - for a site like StackOverflow, the readability of the URL is a positive, but the opposite is true if it's not a public website like this one. In fact, it would seem to me that the more friendly MVC routing URL (which indirectly show method names) could pose a security risk on a private, non-public website app like I'm developing.
For all these reasons I would love to use the lightweight aspects of MVC but skip the Routing entirely - is this possible?
You could make it work without routing, but you would have to rebuild a lot of the framework and pretty much build your own routing engine. That wouldn't really make any sense as Microsoft already provide you with a great routing framework. All your url rewriting rules could easily be implemented using the routing framework anyway. You don't have to have the action name of the controller name in the url if you use the routing framework. As long as you can tell what action should be executed from the raw url it could be implemented.
My advice would be to read up on the routing framework and learn how it works. I'm pretty sure you will not regret it.
Don't bypass routing
Routing is imperative part of Asp.net MVC and ignoring it will cause more or less trouble. You could get by by using ISS7 URL Rewriting module, but it will only work if your requests have a certain format, otherwise you will end up writing rewrites for every single request that is used in your app.
The good thing is that routing is nothing you should be afraid and is quite simple to understand as long as you don't start havind some complex routing rules. Then you will delve even deeper into it and probably love it even more.

Thoughts on streamlining multiple .Net apps

We have a series of ASP.Net applications that have been written over the course of 8 years. Mostly in the first 3-4 years. They have been running quite well with little maintenance, but new functionality is being requested and we are running into IDE and platform issues. The apps were written in .Net 1.x and 2.x and run in separate spaces but are presented as a single suite of applications which use a common navigation toolbar (implemented as a user control). Every time we want to add something to a menu in the nav we have to modify it in all the apps which is a pain. Also, the various versions of Crystal reports and that we used tables to organize the visual elements and we end up with a mess, especially with all the multi-platform .Net versions running. We need to streamline the suite of apps and make it easier to add on new apps without a hassle. We also need to bring all these apps under one .Net platform and IDE.
In addition, there is a WordPress blog styled to match the style of the application suite "integrated" into the UI and a link to a MediaWiki Wiki application as well.
My current thinking is to use an open source content management system (CMS) like Joomla (PHP based unfortunately, but it works well) as the user interface framework for style templating and menu management. Joomla's article management would allow us to migrate the Wiki content into articles which could be published without interfering with the .Net apps. Then essentially use an IFrame within an "article" to "host" the .Net application, then...
Upgrade the .Net apps to VS2010, strip out all the common header/footer controls and migrate the styles to use the style sheets used in the CMS.
As I write this, I certainly realize this is a lot of work and there are optimization issues which this may cause as well as using IFrames seems a bit like cheating and I've read about issues with IFrames.
I know that we could use .Net application styling, but it seems like a lot more work (not sure really). Also, the use of a CMS to handle the blog and wiki also seems appealing, unless there is a .Net CMS out there that can handle all of these requirements.
Given this information, I am looking to know if I am totally going in the wrong direction? We tried to use open source and integrate it over time, but not this has become hard to maintain. Am I not aware of some technology out there that will meet our requirements? Did we do this right and should we just focus on getting the .Net streamlined? I understand that no matter what we do, it's going to be a lot of work. The communities considerable experience would be helpful. Thanks!!
PS - A complete rewrite is not an option.
Hmm, we're in the midst of a project to do something that sounds familiar. We're using www.sitecore.net CMS but you could use the Open Source alternative Umbraco again both of these will have a learning curve, but they're .Net apps and aren't targetted specifically at blogs. SiteCore ultimately can use normal .Net user controls if you want, though it's slightly against their model, but it works.
One thing I'll warn you of is SiteCore Must be the root of your website, it has to control the root of the domain (it has a urlrewriting module that needs to be at the root) and you can tell it to exclude certain folders where your applications might live. You can obviously put your navigation in a folder under the root of the site. Also note SiteCore's a .Net 3.5 application running under the 2.0 runtime.
Are your sub-applications.. Actual seperate applications in virtual dirs or something I'm guessing?
Depending on the nature of the .Net apps, you may find DotNetNuke to be a useful choice.
It's a CMS where you write widgets ('modules') in .Net, then add them to the pages of the CMS. In your case, you'd wrap your existing functionality in such widgets. I've done exactly this several times, and now that I'm used to it it's no big deal.
The downside is you have to learn to swim in the DNN environment, which (like any CMS) has a bit of a learning curve.
I'd have to know a lot more about your existing apps to be sure this is a plausible option. If it looks appealing, you should probably contact someone who's dealt with a situation like yours (such as myself) and go into detail. It's very easy to find yourself in a dead end with these CMS frameworks.
Edit: Like a product mentioned in a different answer, DNN has to control the top level of its subdomain -- all requests begin by going through Default.aspx and are then dispatched in various ways.

What disadvantages/problems are there when integrating Joomla and ASP.Net web pages?

A friend of mine really likes using Joomla as a base for his websites. He also likes the power that Asp.Net has and can code in VB.Net.
He wants to use Joomla as the "Master Page" and Asp.Net/VB.Net/SQL Server to handle the main business logic of the application. He is planning on using the Joomla Wrapper Module (an IFrame, joomla modules) to integrate the ASP.Net into the Joomla website.
Joomla will be able to handle the security (users,roles,registration), menu (based on roles), static content (e.g. About Us page) and it will pass an Encrypted Username & Password to the Asp.Net web page (example here).
The goal of the website is to allow users to register & subscribe to a (free or paid) service where they will be able to customize content and download it as a file.
What disadvantages are there when doing this? Are there work arounds?
Some issues that I can think of are:
Links clicked in an IFrame won't change the browser's url which means that you can't bookmark pages and they aren't in the browsers history.
If Asp.Net has to know the users/roles (which is very likely) then it would have to access the Joomla database or keep its own user table which will have to be in sync with Joomla's users.
EDIT:
I would never build a new website this way, but I was looking for concrete points to convince my friend that using Joomla and Asp.Net together isn't a good idea.
I believe your friend's idea is fine. Both platforms have strong points. Joomla is a mature open source CMS platform that has an enormous amount of community contributed components and it is easy to use which makes it appealing. But I can also see instances where you may want to include ASP.Net functionality in certain scenarios. I have had clients who use Joomla but wanted an app I have written in .Net and it did not make sense to spend the time or money to rewrite it in PHP and MySql. The two can be integrated securely. I wish your friend luck in his endeavors.
I don't see what advantage you get from using Joomla when the app is ASP.net (nor the advantage of coding an ASP.net app when the framework uses PHP/MySQL).
I'm not convinced the security is tight because you can open iframes and bypass the Joomla security. Then you talk about passing username/password to the iframe - but now you need to validate this again through the ASP.net app.
I once coded an app in raw PHP and included it in a Joomla site using iframes. I realized fairly quickly that there was basically no security because the raw PHP had no knowledge of Joomla (although the app was not visible to site visitors and only known about by admin). I quickly recoded it into a built-in component.
To me, this sounds like you're reinventing the wheel on both sides of the app. If you want to use Joomla, either learn how to make components (it's pretty simple) and do it in PHP, or hire someone to do it for you ;).
If PHP is not your strong point, then use a full ASP.net site, perhaps with a CMS as GmonC suggested. Even creating your own basic CMS with some pre-built components (e.g. Telerik) would probably be quicker than integrating PHP and ASP.
Seriously, IMHO, if you're not going to integrate some legacy system or isn't doing this kind of "integration" development as an "experiment" to learn something - in a summarized way, if you just want to have your work done, I think the description you provided inserts a lot of complexity and overhead that aren't needed in the first place.
This added complexity of two completely different ecosystems is a disadvantage to what should be just simpler. I really believe you should try to use Joomla or other CMS written in .net like dotnetnuke (or build your own) instead of this configuration.
If you add more information about what are the goals and objectives of this project, my opinion may change. Until them, I keep my opinion of simplicity.
The time and effort you are going to go through to use Joomla is going to far outweight what it would take to just get some other CMS that was designed for .NET.
Stop over-engineering yourself into a midlife crisis.
Also, Joomla? Seriously? Joomla?
me too don't get any advantages for joomla, it's big system and it just as good as wordpress for regular projects, just wordpress is much simplier. joomla has no good documentation to learn and hard to extend.

How to make two web sites appear as one - What features are important?

I am about to write a tender. The solution might be a PHP based CMS. Later I might want to integrate an ASP.NET framework and make it look like one site.
What features would make this relatively easy.
Would OpenId and similar make a difference?
In the PHP world Joomla is supposed to be more integrative than Druapal. What are the important differences here?
Are there spesific frameworks in ASP.NET, Python or Ruby that are more open to integration than others?
The most important thing is going to be putting as much of the look-and-feel in a format that can be shared by any platforms. That means you should develop a standard set of CSS files and (X)HTML files which can be imported (or directly presented) in any of those platform options. Think about it as writing a dynamic library that can be loaded by different programs.
Using OpenID for authentication, if all of your platform options support it, would be nice, but remember that each platform is going to require additional user metadata be stored for each user (preferences, last login, permissions/roles, etc) which you'll still have to wrangle between them. OpenID only solves the authentication problem, not the authorization or preferences problems.
Lastly, since there are so many options, I would stick to cross-platform solutions. That will leave you the most options going forward. There's no compelling advantage IMHO to using ASP.NET if there's a chance you may one day integrate with other systems or move to another system.
I think that most important thing is to choose the right server. The server needs to have adequate modules. Apache would be good choice as it supports all that you want, including mod_aspnet (which I didn't test, but many people say it works).
If you think asp.net integration is certanly going to come, I would choose Windows as OS as it will certanly be easier.
You could also install reverse proxy that would decide which server to render content based on request - if user request aspx page, proxy will connect to the IIS and windoze page, if it asks for php it can connect to other server. The problem with this approach is shared memory & state, which could be solved with carefull design to support this - like shared database holding all state information and model data....
OpenID doesn't make a difference - there are libs for any framework you choose.

What's the best way to implement friendly URL in ASP.net?

What's the best way to implement friendly URL in ASP.net?
The ASP.NET Routing Framework provided in .NET 3.5 SP1 is a good one.
Although it is very new, it can handles many URL-related tasks and most frequently used URL-friendly schemes very well.
It can be used outside of MVC, too.
The best way to do this is to look into the new MVC toolkit from microsoft (http://www.asp.net/mvc/)
See http://weblogs.asp.net/scottgu/archive/2007/11/13/asp-net-mvc-framework-part-1.aspx for an example.
Sure, its only beta right now, but the core of it is the routing system that makes it possible to make intelligent urls based on actual content.
I.e. to edit product with id 5 you'd have an url that looked like
/Product/Edit/5
If I read the specifications correctly, you can use this routing system for anything (i.e. so you don't have to recode the entire site to use it), and it can default to allow direct references to an existing file to have precedence over its own rules (i.e. /myfile.aspx will still use the file, instead of a route). That way you can mix and match the technologies and urls while you make the trancendance to the new routing based system.
I have used UrlRewriter.Net library. It is small but powerful and easy to configure.
If you're looking to do this in earlier versions of the .Net Framework, you can use the RemapURL tool from the IIS 6.0 Resource Kit. We use it, and all it takes is installing the dll, creating a very simple ini file with your friendly urls and their associated endpoints, and enabling the dll in Web Service Extensions Very simple how-to here.

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