Download [pdffile]_updates.plist when appropriate

[libreliodev]

This is related to libreliodev/javascript#128

When [pdffile]_updates.plist is available, we should download it and store it with the other assets of the pdf file.

[AlirezaAlgo]

@libreliodev
Before adding update.plist as resources. We should get header field x-amz-meta-update and store it in meta file.
I followed the download code and It's NKAssetDownload.
I couldn't find a way to get its header fields.
Should i make another request to get that header field?

[libreliodev]

@serverfire

I couldn't find a way to get its header fields

Look at - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSHTTPURLResponse *)responsein WADocumentDownloader

iOS/Classes/WADocumentDownloader.m

Line 70 in f16ffa7

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSHTTPURLResponse *)response

[AlirezaAlgo]

@libreliodev I already tried that. Unfortunately that method is not called at downloading pdf document with NKAssetDownload.

[AlirezaAlgo]

At

iOS/Classes/WANewsstandIssueDownloader.m

Line 66 in f16ffa7

- (void) launchConnectionWithUrlString:completeUrl{

[libreliodev]

@serverfire

I already tried that. Unfortunately that method is not called at downloading pdf document with NKAssetDownload.

You are right, sorry. Then, I think the best option is to make a direct query to [pdffile]_updates.plist. This should be done inside the shouldGetExtraInformationof the pdf parser.

[AlirezaAlgo]

Done with d897e6e

[libreliodev]

Successfully tested