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remaining originals according to dependency walk
author Robert Boland <robert@markup.co.uk>
date Thu, 16 Feb 2017 22:29:02 +0000
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6
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1 <?php
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2
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3 //20090627/Jaap van Ganswijk: This is a modified version, see the
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4 //return statement some lines before the end of the last function.
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5
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6 if (!function_exists("aws_signed_request")) {
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7 function aws_signed_request($region, $params, $public_key, $private_key)
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8 {
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9 /*
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10 Copyright (c) 2009 Ulrich Mierendorff
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11
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12 Permission is hereby granted, free of charge, to any person obtaining a
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13 copy of this software and associated documentation files (the "Software"),
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14 to deal in the Software without restriction, including without limitation
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15 the rights to use, copy, modify, merge, publish, distribute, sublicense,
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16 and/or sell copies of the Software, and to permit persons to whom the
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17 Software is furnished to do so, subject to the following conditions:
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18
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19 The above copyright notice and this permission notice shall be included in
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20 all copies or substantial portions of the Software.
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21
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22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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23 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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24 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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25 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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26 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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27 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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28 DEALINGS IN THE SOFTWARE.
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29 */
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30
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31 /*
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32 Parameters:
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33 $region - the Amazon(r) region (ca,com,co.uk,de,fr,jp)
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34 $params - an array of parameters, eg. array("Operation"=>"ItemLookup",
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35 "ItemId"=>"B000X9FLKM", "ResponseGroup"=>"Small")
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36 $public_key - your "Access Key ID"
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37 $private_key - your "Secret Access Key"
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38 */
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39
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40 // some paramters
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41 $method = "GET";
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42 $host = "ecs.amazonaws.".$region;
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43 $uri = "/onca/xml";
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44
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45 // additional parameters
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46 $params["Service"] = "AWSECommerceService";
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47 $params["AWSAccessKeyId"] = $public_key;
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48 // GMT timestamp
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49 $params["Timestamp"] = gmdate("Y-m-d\TH:i:s\Z");
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50 // API version
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51 $params["Version"] = "2011-08-01";
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52
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53 // sort the parameters
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54 ksort($params);
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55
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56 // create the canonicalized query
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57 $canonicalized_query = array();
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58 foreach ($params as $param=>$value)
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59 {
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60 $param = str_replace("%7E", "~", rawurlencode($param));
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61 $value = str_replace("%7E", "~", rawurlencode($value));
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62 $canonicalized_query[] = $param."=".$value;
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63 }
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64 $canonicalized_query = implode("&", $canonicalized_query);
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65
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66 // create the string to sign
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67 $string_to_sign = $method."\n".$host."\n".$uri."\n".$canonicalized_query;
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68
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69 // calculate HMAC with SHA256 and base64-encoding
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70 $signature = base64_encode(hash_hmac("sha256", $string_to_sign, $private_key, True));
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71
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72 // encode the signature for the request
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73 $signature = str_replace("%7E", "~", rawurlencode($signature));
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74
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75 // create request
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76 $request = "http://".$host.$uri."?".$canonicalized_query."&Signature=".$signature;
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77
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78 //20090627 and 20090804/Jaap van Ganswijk: I added the next lines
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79 //and commented out the others to prevent getting the file and
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80 //interpreting the XML because my script likes to do that itself.
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81
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82 return $request;
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83
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84 // // do request
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85 // $response = @file_get_contents($request);
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86 //
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87 // if ($response === False)
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88 // {
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89 // return False;
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90 // }
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91 // else
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92 // {
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93 // // parse XML
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94 // $pxml = simplexml_load_string($response);
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95 // if ($pxml === False)
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96 // {
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97 // return False; // no xml
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98 // }
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99 // else
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100 // {
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101 // return $pxml;
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102 // }
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103 // }
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104 }
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105 }
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106 ?>