req := 'Service=AWSECommerceService&AWSAccessKeyId=mykey&Operation=ItemLookup&ItemId=3952334146&Timestamp=', DateAndTime now printString. sign :=SHA256 hashMessage: 'GET', String crlf, 'ecs.amazonaws.com', String crlf, '/onca/xml',String crlf,req.
(Url absoluteFromText: 'http://webservices.amazon.fr/onca/xml?',req, '&Signature=',sign hex) retrieveContents contentStream.
Wenn did you do the encodeForHTTP? You need it in any case because at least the + sign is an encoded space that will render the date invalid. I think you need do safe url encoding only for the string if it is included in the url not the hash.
Yes, but then Amazon answers a signature not valid error. Indeed it seems I need to pass a secret key (given by Amazon) for SHA256 hash, but I don't find how to pass it to a SHA256 object. In PHP I would write: base64_encode(hash_mac('sha256', $signature, $secret_key)). In Pharo ? Laurent Laffont
Norbert
On 07 Nov 2010, at 13:50, laurent laffont wrote:
The other way. For example
DateAndTime now printISO8601
Laurent
On Sun, Nov 7, 2010 at 1:28 PM, Johan Brichau <johan@inceptive.be> wrote: Laurent,
DateAndTime readFrom: '2008-02-10T12:00:00Z' readStream
Does that yield what you want?
cheers Johan
On 06 Nov 2010, at 15:07, laurent laffont wrote:
Hi,
I cannot find which method to use to get a Date in iso 8601 format like '2008-02-10T12:00:00Z' ?
Cheers,
Laurent Laffont
Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/