Amazon Product Advertising API Signature - PHP

Looks like Amazon finally pulled the plug on API requests without a signature?

 

Have they? Seen any definite proof of this? Well, all my stuff is working fine, knock on wood, which hopefully means my updates were successful, if they have indeed enforced the new protocol.

I am surprised, though, if they did not extend the deadline a little. I can imagine a massive slump in affiliate traffic happening - there must be thousands of people out there who set up and left AOM, APF and other Amazon scripts running, with no clue about the changes...

 

No definite proof however the test pages I left up wthout the API signature are not working today. I guess Amazon could be just giving another warning shot to get the API product signatures added to the requests? However as the 15th of August has passed I doubt that this just is a warning!

 

Oh, well, that sounds "definite" enough for me

Funny that the date came and went without fanfare... You'd think there'd have been a few more, increasingly dire warnings first!

I appear to have made some sales since the 15th, so something is working right...

 

They did extend it a little My pages were working fine yesterday now today the products dont show at all.

 

Anyone has AUTO ESTORE, i have one but i don't know how to get the api signature so my site is down..

any help please post it here....

bless

 

Thank Alls Rep.

 

I'd never heard of it before, but I see they have not bothered to update their script, even their own demo store is not working: http://leather-case.info/.

Unfortunately, there are a lot of people out there willing to charge $99 for their script (reduced from $149, don't you know!) but not so willing to provide technical support for it. That's why I give my script away for free...

Not much you can do, other than contact the authors and hassle them - there is a promo thread on "another forum" and you might be able to contact the author that way.

 

anyone can help me to get the amazon api request installed in my store...
thanks

 

What script does your store use? If it's written with PHP I may be able to help.

 

Yes.. I experienced the same problem. My site went blank without content. But, the problem closed when I use API signature in my request. I've to do several changes to my script. And thanks to you, my site is working fine now..

 

@myhart: I downloaded the new ASM2 with this signature thing inside. Notice about the changes in config.php and in aws4class.php. But I can't make it works.
Any suggestions perhaps?

 

I wasn't aware that Roger had updated ASM2 . So I downloaded the "New" ASM2 with API signature code and added my AWSAccessKeyId and SecretAccessKey. The result was that my test store seems to work fine.

What kind of problem do you have? Also the URL to your store might be of help in troubleshooting.

 

@myhart:
No result. On my site, if no result from Amazon.com I display welcomemsg.tpl.
(I can't post the link of my site yet)

In config.php I put $SubscriptionID and $SecretAccessKey, while under function xmlquery($url) in aws4class.php the parameter $SecretAccessKey = "";

Did I do wrong?

 

With the new version of ASM2 that I downloaded you add your AWSAccessKeyId and SecretAccessKey in the config.php file. You don't need to add anything to the aws4class.php file.

 

Thanks myhart, I will check it again. Will back to you too.

 

Still doesn't work, no results :-(.

In config.php I put both AWSAccessKeyId and SecretAccessKey (I delete my SubscriptionID). While I don't change anything in aws4class.php. Below is part of the xmlquery($url) function of aws4class.php. Do you see any error in this part?

function xmlquery($url){
// BEGIN: API
$SecretAccessKey = "";
$String = rawurldecode($url);
$String = str_replace("%7E", "~", $String);
$String = preg_replace('/[\r\n\" "]/', '', $String);
$String = preg_replace('#Keywords=(.*?)&([A-Za-z]+)=#e', '"Keywords=".preg_replace("/[^0-9a-zA-Z]/"," ","$1")."&".$2."=";', $String);
$String = preg_replace('/[" "]+/', ' ', $String);
$StringArray = explode( '?', $String, 2);
$Parameters = explode("&", $StringArray[1]);
$Parameters[] = "Timestamp=" .gmdate("Y-m-d\TH:i:s\Z");
asort($Parameters);
$NewString = implode("&", $Parameters);
$NewString = rawurlencode($NewString);
$NewString = str_replace("~", "%7E", $NewString);
$NewString = str_replace("%3D", "=", $NewString);
$NewString = str_replace("%26", "&", $NewString);
$url = parse_url($StringArray[0]);
$PrependString = "GET\n" .$url['host']. "\n" .$url['path']. "\n" .$NewString;
$Signature = base64_encode(hash_hmac("sha256", $PrependString, $SecretAccessKey, True));
$Signature = rawurlencode($Signature);
$url = $StringArray[0]. "?" . $NewString . "&Signature=" .$Signature;
// END: API

 

Below is the signature code that was included in the ASM2 aws4class.php file that I recently downloaded. You might try using it or replacing the aws4class.php file altogether with the newest version.

// Add API Signature Code Here
			$String = preg_replace('/[\r\n\" "]/', '', $url);
			$SecretAccessKey = "";
			$StringArray = explode( '?', $String);
			$ValueStringArray = explode("&", $StringArray[1]);
			$ValueStringArray[] = "Timestamp=" .gmdate("Y-m-d\TH:i:s\Z");       
			asort($ValueStringArray);
			$NewString = implode("&", $ValueStringArray);
			$NewString = rawurlencode($NewString);
			$NewString = str_replace("%3D", "=", $NewString);
			$NewString = str_replace("%26", "&", $NewString);
			$NewString = str_replace("%7E", "~", $NewString);
			$url = parse_url($StringArray[0]);
			$PrependString = "GET\n" .$url['host']. "\n" .$url['path']. "\n" .$NewString;
			$Signature = base64_encode(hash_hmac("sha256", $PrependString, $this->SecretAccessKey, True));
			$Signature = rawurlencode($Signature);
			$Signature = str_replace("%7E", "~", $Signature);
			$url = $StringArray[0]. "?" . $NewString . "&Signature=" .$Signature;
			// End of API Signature Code

Code (markup):

 

thank you i try do this

 

@myhart: Still doesn't work, though I did these:
- In config.php I put my SubscriptionID and my SecretAccessKey correctly, while let $AWSAccessKeyId empty;
- Replacing the aws4class.php file altogether with the newest version;

FYI, I've been managing tens of ASM stores since 2004 and they all worked well prior to 15 August 2009 period. Now all of them don't work anymore. No error messages resulted but "No Data Found" message produced by browsepage.php.

Any thoughts, perhaps?