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annotate xml/amazonBookSearch.php @ 30:b1bbf44c701b

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standarise semaphore use
author Robert Boland <robert@markup.co.uk>
date Fri, 04 Jan 2019 08:50:23 -0500
parents d606320ec331
children dbc006408d2b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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6
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1 <?php
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2
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3 $Adefault=array(
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4 'language' =>'en', //what language to render the page in
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5 'locale' =>'us', //which server's products? available: ca,de,fr,jp,uk,us
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6 'page' =>1, //first page to show (we are counting from 1 not 0)
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7 'operation' =>'ItemSearch', //what to do? //ItemSearch
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8 'searchindex' =>'Books', //what product category for search?
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9 'searchparameter' =>'Keywords', //what kind of search?
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10 'searchparameterdata'=>'Machiavelli', //what to search for?
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11 //here some debugging flags you can put at the end of the URL to call this script with, like: '?show_array=true'
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12 'show_url' =>false, //debug: show XML request url to be send to Amazon?
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13 );
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14
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15 $Aassociates_id=array(
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16 'uk' => 'bookwhack-21',
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17 'us' => 'your02b-20',
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18 'ca' => 'book009-20',
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19 'de' => 'book04c-21',
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20 'fr' => 'book07f-21',
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21 );
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22
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23 $Aserver=array(
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24 'ca' => array(
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25 'ext' => 'ca' , //Canadian normal server
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26 'nor' => 'http://www.amazon.ca' , //Canadian normal server
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27 'xml' => 'http://xml.amazon.com' , //Canadian xml server
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28 ),
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29 'de' => array(
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30 'ext' => 'de' , //German normal server
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31 'nor' => 'http://www.amazon.de' , //German normal server
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32 'xml' => 'http://xml-eu.amazon.com', //German xml server
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33 ),
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34 'fr' => array(
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35 'ext' => 'fr' , //French normal server
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36 'nor' => 'http://www.amazon.fr' , //French normal server
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37 'xml' => 'http://xml-eu.amazon.com', //French xml server
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38 ),
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39 'jp' => array(
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40 'ext' => 'jp' , //Japanese normal server, not co.jp!
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41 'nor' => 'http://www.amazon.co.jp' , //Japanese normal server
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42 'xml' => 'http://xml.amazon.com' , //Japanese xml server
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43 ),
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44 'uk' => array(
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45 'ext' => 'co.uk' , //UK normal server
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46 'nor' => 'http://www.amazon.co.uk' , //UK normal server
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47 'xml' => 'http://xml-eu.amazon.com', //UK xml server
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48 ),
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49 'us' => array(
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50 'ext' => 'com' , //USA normal server
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51 'nor' => 'http://www.amazon.com' , //USA normal server
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52 'xml' => 'http://xml.amazon.com' , //USA xml server
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53 ),
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54 );
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55
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56 include "aws_signed_request.php";
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57 $public_key ="AKIAIHTNWC7L6LOUY4LQ";
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58 $private_key="zWQlIzndJDtXNfxEXH7K7YR7hzv3u77lOcqfqPde";
6
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59
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60 //for all parameters see if the user has overruled it or use the default
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61 foreach ($Adefault as $i=>$d) {
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62 $$i=isset($_GET[$i])?$_GET[$i]:$d;
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63 }
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64 //this is the data that is used to form the request for AWS
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65 //this is the part that is search specific
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66
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67 $parameters=array(
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68 'Operation' =>$operation ,
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69 //'Keywords' =>urlencode($search) ,
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70 'SearchIndex' =>$searchindex , //Books for example.
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71 "$searchparameter"=>stripslashes($searchparameterdata),
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72 'ItemPage' =>$page , //which page?
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73 'AssociateTag' =>$Aassociates_id[$locale],
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74 'MerchantId' =>'All',
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75 'Availability' =>'Available',
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76 'Condition' =>'All',
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77 'ResponseGroup' =>'Images,ItemAttributes' , //Small, Medium, Large or SellerListing
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78 );
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79
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80 $ext=$Aserver[$locale]['ext'];
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81 $file_data=$ext;
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82 ksort($parameters);
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83 foreach ($parameters as $i=>$d) {
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84 $file_data.='&'.$i.'='.$d;
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85 }
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86
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87 $url=aws_signed_request($ext,$parameters,$public_key,$private_key);
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88 //echo $url;
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89
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90 $crl = curl_init();
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91 $timeout = 5;
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92 curl_setopt ($crl, CURLOPT_URL,$url);
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93 curl_setopt ($crl, CURLOPT_ENCODING , "gzip");
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94 curl_setopt ($crl, CURLOPT_RETURNTRANSFER, 1);
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95 curl_setopt ($crl, CURLOPT_CONNECTTIMEOUT, $timeout);
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96 $gotit=0;
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97 $semaphore = new SyncSemaphore("Amazon");
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98 $gotit = $semaphore->lock(1000);
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99 if (!$gotit) {
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100 file_put_contents('/var/ywww/debug/phpDebug',
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101 "Got it: ".(int)$gotit." 3\n",FILE_APPEND);
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102 $gotit=$semaphore->lock(1000);
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103 file_put_contents('/var/ywww/debug/phpDebug',
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104 "Got it: ".(int)$gotit." 3a\n",FILE_APPEND);
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105 }
6
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106 $ret = curl_exec($crl);
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107 curl_close($crl);
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108 usleep(500000);
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109 if ($gotit) {
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110 $semaphore->unlock();
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111 }
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112 else {
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113 file_put_contents('/var/ywww/debug/phpDebug',"W/o lock 3b\n",FILE_APPEND);
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114 }
6
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115 echo $ret;