Re: Changing browser URL based on condition
2011-07-11 20:48, Jerry Pereira wrote:
Hi All,
I would like to know if there is a way to change the URL displayed on
browser without using Redirect option. The URL visible on client browser
must be based on some condition that is evaluated in my mod_perl handler.
For example -
1. User types the URL - www.example.com http://www.example.com/, this will
display the login page.
2. Once the user enters the credentials and hits submit, the request is
posted to www.example.com/login http://www.example.com/login action.
3. If the credentials entered by the user is valid then i would like to show
the home page..uri
4. I am able to show the homw page, but the URL does not change to
www.example.com/home http://www.example.com/home, instead it remains the same
(i.e.
www.example.com/login http://www.example.com/login). I am using Template
toolkit to render my pages. I
tried $req-url('/home'), but that does not change the browser URI.
Any help will be appreciated.
Telling the browser to fudge the URL is a client side thing. There is support
for this in HTML5, with varying support in different browsers.
One starting point could be this:
http://stackoverflow.com/questions/4015613/good-tutorial-for-using-html5-history-api-pushstate
--
Mårten Svantesson
Senior Developer
Travelocity Nordic
+46 (0)8 505 787 23
Re: Changing browser URL based on condition
On Mon, Jul 11, 2011 at 11:48:09AM -0700, Jerry Pereira wrote: I would like to know if there is a way to change the URL displayed on browser without using Redirect option. The URL visible on client browser must be based on some condition that is evaluated in my mod_perl handler. Imagine if a web page could cause the browser to display any URL it wanted, rather than the URL of the page the user is actually viewing... That would be a huge security hole for spoofing of web sites! So, why don't you want to do a redirect, exactly? Ronald
RE: Changing browser URL based on condition
If you are looking to do this for cosmetic reasons, I do this be simply using
frame sets and doing redirects in the child frame. The URL displayed in the
location bar will always be constant for the parent frame. I don't think there
is any way to do this at the core level or it would be a spoofers windfall.
The browser will always have the actual location in the info panel.
From: Jerry Pereira [mailto:online.je...@gmail.com]
Sent: Monday, July 11, 2011 2:48 PM
To: modperl@perl.apache.org
Subject: Changing browser URL based on condition
Hi All,
I would like to know if there is a way to change the URL displayed on
browser without using Redirect option. The URL visible on client browser
must be based on some condition that is evaluated in my mod_perl handler.
For example -
1. User types the URL - www.example.comhttp://www.example.com/, this will
display the login page.
2. Once the user enters the credentials and hits submit, the request is
posted to www.example.com/loginhttp://www.example.com/login action.
3. If the credentials entered by the user is valid then i would like to show
the home page..uri
4. I am able to show the homw page, but the URL does not change to
www.example.com/homehttp://www.example.com/home, instead it remains the same
(i.e.
www.example.com/loginhttp://www.example.com/login). I am using Template
toolkit to render my pages. I
tried $req-url('/home'), but that does not change the browser URI.
Any help will be appreciated.
Thanks,
Jerry
Re: Changing browser URL based on condition
From: Jerry Pereira online.je...@gmail.com Hi All, I would like to know if there is a way to change the URL displayed on browser without using Redirect option. Nope, not possible. You need to do that redirection somehow. What the user sees in the address bar is the URL accessed by the browser. If the browser is not told to access a certain URL, how can that URL appear in the address bar? Why don't you want to do that redirection? It is pretty common (and recommended) to do a redirect after POST because in that case the users won't need to meet that ugly warning window that appear if the user does a page refresh after the POST. Octavian
Re: Changing browser URL based on condition
Hi Edward,
I have the following design:
A single PerlResponseHandler for all requests. This handler based on the
path decides the action to be taken
For example, if the user submits to www.example.com/login, then the handler
delegates the request to authentication module, which will then either
display the home page (throug home page template) or login page again, based
on the success/failure of authentication mechanism. Since i am rendering the
page via template, i am able to generate the content of home page which i
then send back to the client, but the URL on the browser remails the same
(i.e. www.example.com/login), which is not true. Any suggestions to handle
this scenario will be great.
Thanks,
Jerry
On Mon, Jul 11, 2011 at 12:03 PM, Szekeres, Edward
edward.szeke...@perkinelmer.com wrote:
If you are looking to do this for “cosmetic reasons”, I do this be simply
using frame sets and doing redirects in the child frame. The URL displayed
in the location bar will always be constant for the parent frame. I don’t
think there is any way to do this at the core level or it would be a
spoofers windfall. The browser will always have the actual location in the
info panel.
** **
*From:* Jerry Pereira [mailto:online.je...@gmail.com]
*Sent:* Monday, July 11, 2011 2:48 PM
*To:* modperl@perl.apache.org
*Subject:* Changing browser URL based on condition
** **
Hi All,
I would like to know if there is a way to change the URL displayed on
browser without using Redirect option. The URL visible on client browser
must be based on some condition that is evaluated in my mod_perl handler.*
***
For example -
1. User types the URL - www.example.com, this will display the login page.
2. Once the user enters the credentials and hits submit, the request is
posted to www.example.com/login action.
3. If the credentials entered by the user is valid then i would like to
show
the home page..uri
4. I am able to show the homw page, but the URL does not change to
www.example.com/home, instead it remains the same (i.e.
www.example.com/login). I am using Template toolkit to render my pages. I
tried $req-url('/home'), but that does not change the browser URI.
Any help will be appreciated.
Thanks,
Jerry
--
Your clothes may be the latest in style but you aint completely dressed
until you wear a smile!
Keep smiling : )
Re: Changing browser URL based on condition
On 07/11/2011 03:14 PM, Jerry Pereira wrote: Any suggestions to handle this scenario will be great. As others have noted, there isn't a way to do this. If it's a requirement of your application then the only way to handle it is to do redirection. And as others have pointed out it's a good idea to do a redirect after a POST anyway since it prevents other problems. -- Michael Peters Plus Three, LP
Re: Changing browser URL based on condition
Much better to go with a more RESTful approach - the URL is the identifier
for the page and you don't want that identifier to represent the wrong page,
e.g. if example.com/login sometimes returns the home page and sometimes
returns some other page (assuming you can login from and return to multiple
pages.)
Make it so that your home page (or any page) have a login form (or link
which expands to a login form) which POSTs to the login page (or to think of
it in a RESTful way, PUT to a sessions URL, thus defining the idea of
create a new session - except that browser forms have problems with PUT).
Then from the login page do a redirect to whatever was the referer.
On Mon, Jul 11, 2011 at 12:14 PM, Jerry Pereira online.je...@gmail.comwrote:
Hi Edward,
I have the following design:
A single PerlResponseHandler for all requests. This handler based on the
path decides the action to be taken
For example, if the user submits to www.example.com/login, then the
handler delegates the request to authentication module, which will then
either display the home page (throug home page template) or login page
again, based on the success/failure of authentication mechanism. Since i am
rendering the page via template, i am able to generate the content of home
page which i then send back to the client, but the URL on the browser
remails the same (i.e. www.example.com/login), which is not true. Any
suggestions to handle this scenario will be great.
Thanks,
Jerry
On Mon, Jul 11, 2011 at 12:03 PM, Szekeres, Edward
edward.szeke...@perkinelmer.com wrote:
If you are looking to do this for “cosmetic reasons”, I do this be
simply using frame sets and doing redirects in the child frame. The URL
displayed in the location bar will always be constant for the parent frame.
I don’t think there is any way to do this at the core level or it would be a
spoofers windfall. The browser will always have the actual location in the
info panel.
** **
*From:* Jerry Pereira [mailto:online.je...@gmail.com]
*Sent:* Monday, July 11, 2011 2:48 PM
*To:* modperl@perl.apache.org
*Subject:* Changing browser URL based on condition
** **
Hi All,
I would like to know if there is a way to change the URL displayed on
browser without using Redirect option. The URL visible on client browser
must be based on some condition that is evaluated in my mod_perl handler.
For example -
1. User types the URL - www.example.com, this will display the login
page.
2. Once the user enters the credentials and hits submit, the request is
posted to www.example.com/login action.
3. If the credentials entered by the user is valid then i would like to
show
the home page..uri
4. I am able to show the homw page, but the URL does not change to
www.example.com/home, instead it remains the same (i.e.
www.example.com/login). I am using Template toolkit to render my pages. I
tried $req-url('/home'), but that does not change the browser URI.
Any help will be appreciated.
Thanks,
Jerry
--
Your clothes may be the latest in style but you aint completely dressed
until you wear a smile!
Keep smiling : )
Re: Changing browser URL based on condition
From: Jerry Pereira online.je...@gmail.com Hi Edward, I have the following design: A single PerlResponseHandler for all requests. This handler based on the path decides the action to be taken For example, if the user submits to www.example.com/login, then the handler delegates the request to authentication module, which will then either display the home page (throug home page template) or login page again, based on the success/failure of authentication mechanism. Instead of displaying those pages, why can't the authentication module do a redirect to the handler that display the wanted page? Octavian
Re: Changing browser URL based on condition
On Mon, 11 Jul 2011 11:48:09 -0700 Jerry Pereira online.je...@gmail.com wrote: 1. User types the URL - www.example.com, this will display the login page. 2. Once the user enters the credentials and hits submit, the request is posted to www.example.com/login action. 3. If the credentials entered by the user is valid then i would like to show the home page..uri 4. I am able to show the homw page, but the URL does not change to www.example.com/home, instead it remains the same (i.e. www.example.com/login). One important reason to do something like that is because you do not want the user to bookmark or otherwise pass on an url with completely ambiguous content -- /login should refer to the login page, /home should refer to the home page, they are two different things. Having /login refer to both is no good. So I think your desire is justified. IMO, this is best handled client-side: you return your login data via an AJAX call. If the login succeeds, the client loads /home. If the login has failed, the client displays a message to that effect. You need to prevent spoofed access to /home, but of course you have to do that anyway (via cookies or whatever method you are already using). -- Enthusiasm is not the enemy of the intellect. (said of Irving Howe) The angel of history[...]is turned toward the past. (Walter Benjamin)
Re: Changing browser URL based on condition
Agree with the consensus. The URI should be descriptive of the
function, so any requests to /login should be from users who are
attempting to... login. The home page should be housed under a separate
URL (/home for example)
After the user has authenticated, the login module should redirect to
the /home URI. Any links to the home page from within the application
should likewise refer to /home. You should have security in place to
redirect any unauthenticated users to /login before requests for /home
(or any other part of your application) are processed.
If you for some reason simply MUST keep referring people to /login when
they are expecting to see the home page, put code in your login module
to check for authenticated users and redirect them to /home before
displaying the login page. If the user doesn't have a session, then go
ahead and display the login form.
On 11-07-11 03:14 PM, Jerry Pereira wrote:
Hi Edward,
I have the following design:
A single PerlResponseHandler for all requests. This handler based on
the path decides the action to be taken
For example, if the user submits to www.example.com/login
http://www.example.com/login, then the handler delegates the request
to authentication module, which will then either display the home page
(throug home page template) or login page again, based on the
success/failure of authentication mechanism. Since i am rendering the
page via template, i am able to generate the content of home page
which i then send back to the client, but the URL on the browser
remails the same (i.e. www.example.com/login
http://www.example.com/login), which is not true. Any suggestions to
handle this scenario will be great.
Thanks,
Jerry
On Mon, Jul 11, 2011 at 12:03 PM, Szekeres, Edward
edward.szeke...@perkinelmer.com
mailto:edward.szeke...@perkinelmer.com wrote:
If you are looking to do this for “cosmetic reasons”, I do this be
simply using frame sets and doing redirects in the child frame.
The URL displayed in the location bar will always be constant for
the parent frame. I don’t think there is any way to do this at
the core level or it would be a spoofers windfall. The browser
will always have the actual location in the info panel.
*From:*Jerry Pereira [mailto:online.je...@gmail.com
mailto:online.je...@gmail.com]
*Sent:* Monday, July 11, 2011 2:48 PM
*To:* modperl@perl.apache.org mailto:modperl@perl.apache.org
*Subject:* Changing browser URL based on condition
Hi All,
I would like to know if there is a way to change the URL displayed on
browser without using Redirect option. The URL visible on client
browser
must be based on some condition that is evaluated in my mod_perl
handler.
For example -
1. User types the URL - www.example.com http://www.example.com/,
this will display the login page.
2. Once the user enters the credentials and hits submit, the
request is
posted to www.example.com/login http://www.example.com/login action.
3. If the credentials entered by the user is valid then i would
like to show
the home page..uri
4. I am able to show the homw page, but the URL does not change to
www.example.com/home http://www.example.com/home, instead it
remains the same (i.e.
www.example.com/login http://www.example.com/login). I am using
Template toolkit to render my pages. I
tried $req-url('/home'), but that does not change the browser URI.
Any help will be appreciated.
Thanks,
Jerry
--
Your clothes may be the latest in style but you aint completely
dressed until you wear a smile!
Keep smiling : )
RE: Changing browser URL based on condition
It seems to be just an attempt to do what is already done in Apache2::AuthCookie (CPAN), which encapsulates a server side authentication. -Original Message- From: MK [mailto:m...@cognitivedissonance.ca] Sent: Monday, July 11, 2011 3:37 PM To: modperl@perl.apache.org Subject: Re: Changing browser URL based on condition On Mon, 11 Jul 2011 11:48:09 -0700 Jerry Pereira online.je...@gmail.com wrote: 1. User types the URL - www.example.com, this will display the login page. 2. Once the user enters the credentials and hits submit, the request is posted to www.example.com/login action. 3. If the credentials entered by the user is valid then i would like to show the home page..uri 4. I am able to show the homw page, but the URL does not change to www.example.com/home, instead it remains the same (i.e. www.example.com/login). One important reason to do something like that is because you do not want the user to bookmark or otherwise pass on an url with completely ambiguous content -- /login should refer to the login page, /home should refer to the home page, they are two different things. Having /login refer to both is no good. So I think your desire is justified. IMO, this is best handled client-side: you return your login data via an AJAX call. If the login succeeds, the client loads /home. If the login has failed, the client displays a message to that effect. You need to prevent spoofed access to /home, but of course you have to do that anyway (via cookies or whatever method you are already using). -- Enthusiasm is not the enemy of the intellect. (said of Irving Howe) The angel of history[...]is turned toward the past. (Walter Benjamin)
Re: Changing browser URL based on condition
Thanks Guys!!! I will go ahead with Redirect approach. I was more interested in building a generic framework for my application that would handle such scenarios (login was just one of them). On Mon, Jul 11, 2011 at 12:42 PM, Szekeres, Edward edward.szeke...@perkinelmer.com wrote: It seems to be just an attempt to do what is already done in Apache2::AuthCookie (CPAN), which encapsulates a server side authentication. -Original Message- From: MK [mailto:m...@cognitivedissonance.ca] Sent: Monday, July 11, 2011 3:37 PM To: modperl@perl.apache.org Subject: Re: Changing browser URL based on condition On Mon, 11 Jul 2011 11:48:09 -0700 Jerry Pereira online.je...@gmail.com wrote: 1. User types the URL - www.example.com, this will display the login page. 2. Once the user enters the credentials and hits submit, the request is posted to www.example.com/login action. 3. If the credentials entered by the user is valid then i would like to show the home page..uri 4. I am able to show the homw page, but the URL does not change to www.example.com/home, instead it remains the same (i.e. www.example.com/login). One important reason to do something like that is because you do not want the user to bookmark or otherwise pass on an url with completely ambiguous content -- /login should refer to the login page, /home should refer to the home page, they are two different things. Having /login refer to both is no good. So I think your desire is justified. IMO, this is best handled client-side: you return your login data via an AJAX call. If the login succeeds, the client loads /home. If the login has failed, the client displays a message to that effect. You need to prevent spoofed access to /home, but of course you have to do that anyway (via cookies or whatever method you are already using). -- Enthusiasm is not the enemy of the intellect. (said of Irving Howe) The angel of history[...]is turned toward the past. (Walter Benjamin) -- Your clothes may be the latest in style but you aint completely dressed until you wear a smile! Keep smiling : )
RE: Changing browser URL based on condition
I think you need to do a redirect. From within your mod_perl handler try
something like this:
$r-content_type(text/plain);
$r-headers_out-set(Location=$url);
return Apache2::Const::HTTP_TEMPORARY_REDIRECT;
From: Jerry Pereira [mailto:online.je...@gmail.com]
Sent: Monday, July 11, 2011 2:48 PM
To: modperl@perl.apache.org
Subject: Changing browser URL based on condition
Hi All,
I would like to know if there is a way to change the URL displayed on
browser without using Redirect option. The URL visible on client browser
must be based on some condition that is evaluated in my mod_perl handler.
For example -
1. User types the URL - www.example.comhttp://www.example.com/, this will
display the login page.
2. Once the user enters the credentials and hits submit, the request is
posted to www.example.com/loginhttp://www.example.com/login action.
3. If the credentials entered by the user is valid then i would like to show
the home page..uri
4. I am able to show the homw page, but the URL does not change to
www.example.com/homehttp://www.example.com/home, instead it remains the same
(i.e.
www.example.com/loginhttp://www.example.com/login). I am using Template
toolkit to render my pages. I
tried $req-url('/home'), but that does not change the browser URI.
Any help will be appreciated.
Thanks,
Jerry
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Re: Changing browser URL based on condition
From: Jerry Pereira Thanks Guys!!! I will go ahead with Redirect approach. I was more interested in building a generic framework for my application that would handle such scenarios (login was just one of them). Then, as somebody suggested, start using Catalyst framework. It will handle the authentication/authorization very easy, and you will be able to continue to use your app with mod_perl if you want that. And of course, you will have many other good features in it. Octavian
