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Re: Determining MIME types
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Re: Determining MIME types


  • Subject: Re: Determining MIME types
  • From: Matthew Delves <email@hidden>
  • Date: Sat, 19 Jan 2008 17:36:02 +1100


On 19/01/2008, at 12:35 PM, j o a r wrote:


On Jan 18, 2008, at 5:28 PM, Jim Puls wrote:

If you (simply) extract the extension from the end of a filename, you can get its UTI and then turn that in to a MIME type.


I was just about to suggest the same resource. I only have a couple of things to add:

* Keep in mind that the mappings provided by that API is incomplete, even for popular / common file types.


Still, something is better than nothing.

* IIRC (and this is clearly not my area of expertise) if you're downloading something over HTTP (and probably other protocols too) the server can provide a MIME type that differs from the one you would expect from just looking at the file name suffix. There might not even be a file name suffix, but the server can still provide a MIME type.

NSURLResponse provides a method for retrieving the MIME type, though what I would prefer is something which can be calculated from the filename.


I have managed to get the UTI from the file extension, though unsure about how to get the MIME type from the UTI.

Thanks,
Matthew Delves
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  • Follow-Ups:
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References: 
 >Determining MIME types (From: Matthew Delves <email@hidden>)
 >Re: Determining MIME types (From: Jim Puls <email@hidden>)
 >Re: Determining MIME types (From: j o a r <email@hidden>)

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