Minggu, 29 April 2012

Making signed requests with CodeIgniter

. Minggu, 29 April 2012 .

Recently we’ve done lots of backends for IOS apps, Flash sites, Facebook apps and such. In most cases, it’s just a matter of responding with JSON to a HTTP request, saving or fetching something from a datasource. The problem is that it’s fairly easy to sniff the request, change a few parameters and submit a forged request. Up until now, we’ve done authentication on an ad hoc basis, but last week i whipped up a simple CodeIgniter library to standardize the way we do this authentication. Here it is.
This is how to work it:
1. Place this file in application/libraries/
2. Load or autoload it
3. In your controller, use this to validate a request:
    # keep calm and carry on
    # respond that the checksum was bad


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