unzip downloaded file through asihttprequest - iphone

Question

I want to know whether using ASIHTTPRequest we can unzip a .zip downloaded file or it can only
unzip .gzip compressed file.
Please let me know because if ASIHTTPRequest cannot unzip .zip compressed file then I will have to use third party api like ZipArchive to unzip the downloaded file.
Thanks

Answer 1

Why not using gzip compressed HTTP communication which would be transparently decoded for you by ASI (and virtually all other HTTP access frameworks).
ASIHTTP supports decompression, for example -
- (IBAction)grabURL:(id)sender
{
NSURL *url = [NSURL URLWithString:#"http://allseeing-i.com"];
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
// YES is the default, you can turn off gzip compression by setting this to NO
[request setAllowCompressedResponse:YES];
[request startSynchronous];
BOOL *dataWasCompressed = [request isResponseCompressed]; // Was the response gzip compressed?
NSData *compressedResponse = [request rawResponseData]; // Compressed data
NSData *uncompressedData = [request responseData]; // Uncompressed data
NSString *response = [request responseString]; // Uncompressed data as a string
}
UPDATE: incase asi does not support zip file decompression then I've used ZipArchive with success in the past.
It's pretty ligthweight and simple to use, supports password protection, multiple files inside a ZIP, as well as compress & decompress. so you need to first fetch the zip file through asi and then unzip is using ziparchive.
The basic usage is:
NSString *filepath = [[NSBundle mainBundle] pathForResource:#"ZipFileName" ofType:#"zip"];
ZipArchive *zipArchive = [[ZipArchive alloc] init];
[zipArchive UnzipOpenFile:filepath Password:#"xxxxxx"];
[zipArchive UnzipFileTo:{pathToDirectory} overWrite:YES];
[zipArchive UnzipCloseFile];
[zipArchive release];