I was thinking about this the other day, running through a few scenarios.
One use case that crossed my mind was what if you needed a way for admins to
restart the app, but only via the apps control panel, so the action could be
logged. And if that admin's access is revoked you shouldn't have to change
the apps config to alter the reload key/password.
So just for fun, i hacked together a little solution.
function onApplicationStart(any event) {
var mg = event.getModelGlue();
var cfg = mg.getBean("modelglue.modelGlueConfiguration");
var pwd = hash(createuuid()); // generate a random password
cfg.setReloadPassword(pwd); // overwrite the password in the cfg bean
mg.configuration.reloadpassword = pwd; // overwrite the password cached
inside MG
}
function reloadApp(any event) {
var mg = event.getModelGlue();
// get the key and password from the config
var key = mg.getConfigSetting("ReloadKey");
var pwd = mg.getConfigSetting("ReloadPassword");
// set the key=password pair into the event
event.setValue(key, pwd);
// redirect to a page, appending key=password to the url
event.forward("page.index", key);
}
So when the app first starts the password is randomized so it can not be
guessed. you then call the reloadApp controller function from a secured
event-handler which will reload the app, causing onApplicationStart to be
called and reset the password so it can't be reused.
Its pretty slick IMHO, apart from having to dip into the MG object to update
the password. I'm not sure why the values are cached as a struct in the MG
object rather than a reference to config bean, probably just for speed..
just how it is.
To restrict access via ip in my MG onApplicationStart i'd set the reloadKey
& password into the application scope, then in my
Application.onRequestStart() i'd check to see if they were present, correct
and then check the requests ip address. If the key/password don't match, or
the ip is invalid i'd structDelete() them from the url before the request
hits MG.
Cheers, Chris
On 29 November 2010 21:06, Dan Wilson <[email protected]> wrote:
> Look into using the built in event: modelglue.onApplicationStart
>
> As far as restricting the reloading, you may have to do this inside of your
> application specific index.cfm page. At the moment, Model Glue doesn't look
> at IP addresses.
>
>
> DW
>
>
>
>
> On Mon, Nov 29, 2010 at 4:02 PM, Ryan Stille <[email protected]>wrote:
>
>> I would like to have some kind of popup or jquery notification when my
>> app is reinitted. It just confirms for me that I did enter the right
>> reloadKey and everything worked as I expected.
>>
>> What is a good way to do this? Is there some built in event that gets
>> run when an reinit happens? Alternatively I could add some code in
>> the onRequestStart event that looks for URL.init and sees if its true,
>> but that doesn't work if the reloadKey value has been changed.
>>
>> Also I'd like to add a restriction so that only certain IPs can cause
>> the app to reinit. I assume this code would go in the same place as
>> my notification code.
>>
>> Any ideas? Thanks.
>>
>> --
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>
>
>
>
> --
> Plutarch - "The mind is not a vessel to be filled but a fire to be
> kindled."
>
> --
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