--- /dev/null
+<?php
+
+function aws_signed_request($region, $params, $public_key, $private_key)
+{
+ /*
+ Copyright (c) 2009 Ulrich Mierendorff
+
+ Permission is hereby granted, free of charge, to any person obtaining a
+ copy of this software and associated documentation files (the "Software"),
+ to deal in the Software without restriction, including without limitation
+ the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ and/or sell copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ DEALINGS IN THE SOFTWARE.
+ */
+
+ /*
+ Parameters:
+ $region - the Amazon(r) region (ca,com,co.uk,de,fr,jp)
+ $params - an array of parameters, eg. array("Operation"=>"ItemLookup",
+ "ItemId"=>"B000X9FLKM", "ResponseGroup"=>"Small")
+ $public_key - your "Access Key ID"
+ $private_key - your "Secret Access Key"
+ */
+
+ // some paramters
+ $method = "GET";
+ $host = "ecs.amazonaws.".$region;
+ $uri = "/onca/xml";
+
+ // additional parameters
+ $params["Service"] = "AWSECommerceService";
+ $params["AWSAccessKeyId"] = $public_key;
+ // GMT timestamp
+ $params["Timestamp"] = gmdate("Y-m-d\TH:i:s\Z");
+ // API version
+ $params["Version"] = "2009-03-31";
+
+ // sort the parameters
+ ksort($params);
+
+ // create the canonicalized query
+ $canonicalized_query = array();
+ foreach ($params as $param=>$value)
+ {
+ $param = str_replace("%7E", "~", rawurlencode($param));
+ $value = str_replace("%7E", "~", rawurlencode($value));
+ $canonicalized_query[] = $param."=".$value;
+ }
+ $canonicalized_query = implode("&", $canonicalized_query);
+
+ // create the string to sign
+ $string_to_sign = $method."\n".$host."\n".$uri."\n".$canonicalized_query;
+
+ // calculate HMAC with SHA256 and base64-encoding
+ $signature = base64_encode(hash_hmac("sha256", $string_to_sign, $private_key, True));
+
+ // encode the signature for the request
+ $signature = str_replace("%7E", "~", rawurlencode($signature));
+
+ // create request
+ $request = "http://".$host.$uri."?".$canonicalized_query."&Signature=".$signature;
+
+ // do request
+ $response = @file_get_contents($request);
+
+ if ($response === False)
+ {
+ return False;
+ }
+ else
+ {
+ // parse XML
+ $pxml = simplexml_load_string($response);
+ if ($pxml === False)
+ {
+ return False; // no xml
+ }
+ else
+ {
+ return $pxml;
+ }
+ }
+}
+?>
/* how much time must pass before we try searching for cover art again */
$COVER_SEARCH_AGAIN = 86400;
- $amazon_base_url = "http://webservices.amazon.com/onca/xml?Service=AWSECommerceService&SubscriptionId="
- . "15BH771NY941TX2NKC02";
- $amazon_review_url = $amazon_base_url . "&ResponseGroup=EditorialReview&Operation=";
+ include("aws_signed_request.php");
require_once("../inc/base.php");
require_once("metadata_cover.php");
+ function amazonlink($params)
+ {
+ $params["SubscriptionId"] = "15BH771NY941TX2NKC02";
+ $res = aws_signed_request("com", $params, "Access Key ID", "Secret Access Key");
+
+ return $res;
+ }
+
/* metadata should not require locking of session */
session_write_close();
/* Queries amazon with the specified url, strict serach first and then a more careless one,
* will urlencode artist and albumname
* returns xml document or false upon failure */
- function amazon_album_query($base_url, $artist, $album) {
+ function amazon_album_query($params) {
$stype = array("Title", "Keywords");
$artist = urlencode($artist);
$album = urlencode($album);
foreach($stype as $st) {
if(!amazon_wait())
return false;
- $xml = @simplexml_load_string(@file_get_contents($base_url . "&Artist=$artist&$st=$album"));
+ $xml = amazonlink($params);
if($xml&&isset($xml->Items[0])&&isset($xml->Items[0]->Item[0]))
return $xml;
}
function get_cover() {
- global $COVER_SEARCH_AGAIN, $amazon_base_url,$cover_providers;
+ global $COVER_SEARCH_AGAIN, $cover_providers;
list($fp, $artist, $album) = init_album_artist_or_die();
}
function get_review() {
- global $amazon_review_url, $COVER_SEARCH_AGAIN;
+ global $COVER_SEARCH_AGAIN;
list($fp, $artist, $album) = init_album_artist_or_die();
}
if($xml&&isset($xml->asin[0])) {
- $res = @file_get_contents($amazon_review_url . "ItemLookup&IdType=ASIN&ItemId=" . urlencode($xml->asin[0]));
- if($res)
- $res = @simplexml_load_string($res);
+ $res = amazonlink(array("Operation"=>"ItemLookup", "IdType"=>"ASIN", "ItemId"=>"urlencode($xml->asin[0])"));
$asin = false;
}
else {
- $res = @amazon_album_query($amazon_review_url . "ItemSearch&SearchIndex=Music&Artist=" , $artist , $album);
+ $res = @amazon_album_query(array("Operation"=>"ItemSearch", "SearchIndex"=>"Music", "Artist"=>"$artist", "Album"=>"$album"));
}
if($res) {
if($res&&isset($res->Items[0])&&isset($res->Items[0]->Item[0])) {
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
- $amazon_cover_url = $amazon_base_url . "&Operation=ItemSearch&SearchIndex=Music&ResponseGroup=Images";
$cover_providers = array("directory_cover", "amazon_search_cover");
/* If you want to use this you'll need php-gd as well */
function amazon_search_cover($artist, $album) {
global $amazon_cover_url, $metadata_dir;
- $xml = amazon_album_query($amazon_cover_url, $artist, $album);
+ $xml = amazon_album_query(array("Operation"=>"ItemSearch", "SearchIndex"=>"Music", "ResponseGroup"=>"Images", "Artist"=>"$artist", "Album"=>"$album"));
if($xml) {
if(isset($xml->Items[0])&&isset($xml->Items[0]->Item[0])) {
$item = $xml->Items[0]->Item[0];
git.joshuawise.com / patchfork.git / commitdiff