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| 1 | +<?php |
| 2 | + |
| 3 | + |
| 4 | +Class SignatureCreation { |
| 5 | + |
| 6 | + public static function oauth_hmacsha1($key, $data) { |
| 7 | + return base64_encode(self::hmacsha1($key, $data)); |
| 8 | + } |
| 9 | + |
| 10 | + public static function hmacsha1($key,$data) { |
| 11 | + $blocksize=64; |
| 12 | + $hashfunc='sha1'; |
| 13 | + if (strlen($key)>$blocksize) |
| 14 | + $key=pack('H*', $hashfunc($key)); |
| 15 | + $key=str_pad($key,$blocksize,chr(0x00)); |
| 16 | + $ipad=str_repeat(chr(0x36),$blocksize); |
| 17 | + $opad=str_repeat(chr(0x5c),$blocksize); |
| 18 | + $hmac = pack( |
| 19 | + 'H*',$hashfunc( |
| 20 | + ($key^$opad).pack( |
| 21 | + 'H*',$hashfunc( |
| 22 | + ($key^$ipad).$data |
| 23 | + ) |
| 24 | + ) |
| 25 | + ) |
| 26 | + ); |
| 27 | + return $hmac; |
| 28 | + } |
| 29 | + |
| 30 | + public static function oauth_signature($url,$params, $secret) { |
| 31 | + |
| 32 | + // sort the parameters |
| 33 | + ksort($params); |
| 34 | + |
| 35 | + $param_string = ""; |
| 36 | + $i = 0; |
| 37 | + foreach ($params as $k => $v) { |
| 38 | + if ($i != 0) { |
| 39 | + $param_string .= "&"; |
| 40 | + } |
| 41 | + if (is_array($v)) { |
| 42 | + $j = 0; |
| 43 | + foreach($v as $key => $val) { |
| 44 | + if ($j != 0) { |
| 45 | + $param_string .= "&"; |
| 46 | + } |
| 47 | + $param_string .= $k . "=" . $val; |
| 48 | + $j++; |
| 49 | + } |
| 50 | + } else { |
| 51 | + $param_string .= $k . "=" . $v; |
| 52 | + } |
| 53 | + $i++; |
| 54 | + } |
| 55 | + |
| 56 | + |
| 57 | + echo $param_string."<br/>"; |
| 58 | + |
| 59 | + $data = "GET&".urlencode($url). "&".urlencode($param_string); |
| 60 | + |
| 61 | + |
| 62 | + $key = $secret."&"; |
| 63 | + |
| 64 | + $sig = self::oauth_hmacsha1($key, $data); |
| 65 | + return $sig; |
| 66 | + } |
| 67 | +} |
| 68 | + |
| 69 | + |
| 70 | +/** |
| 71 | + * API calls for managing sandboxes |
| 72 | + * |
| 73 | + * @link http://developer.echonest.com/docs/v4/catalog.html#overview |
| 74 | + * @author Syd Lawrence <sydlawrence at gmail dot com> |
| 75 | + * @license MIT License |
| 76 | + */ |
| 77 | +class EchoNest_Api_Sandbox extends EchoNest_Api |
| 78 | +{ |
| 79 | + |
| 80 | + protected $sandbox = ""; |
| 81 | + |
| 82 | + protected $oauth_config = array |
| 83 | + ( |
| 84 | + "consumer_key" => "", |
| 85 | + "consumer_secret" => "", |
| 86 | + ); |
| 87 | + |
| 88 | + function setSandbox($sandbox) |
| 89 | + { |
| 90 | + if ($sandbox) |
| 91 | + $this->sandbox = $sandbox; |
| 92 | + return $this; |
| 93 | + } |
| 94 | + |
| 95 | + function setConfig($oauth_config) |
| 96 | + { |
| 97 | + foreach ($this->oauth_config as $key => $val) { |
| 98 | + |
| 99 | + if (!isset($oauth_config[$key]) || $oauth_config[$key] == "") { |
| 100 | + // @todo make this thrown an exception |
| 101 | + throw new Exception('Missing sandbox oauth config: '.$key); |
| 102 | + } |
| 103 | + $this->oauth_config[$key] = $oauth_config[$key]; |
| 104 | + } |
| 105 | + return $this; |
| 106 | + |
| 107 | + } |
| 108 | + |
| 109 | + |
| 110 | + /** |
| 111 | + * Lists assets in a sandbox. |
| 112 | + * http://developer.echonest.com/docs/v4/catalog.html#create |
| 113 | + * |
| 114 | + * @param string $name The name of the catalog |
| 115 | + * @param string $type The type of the catalog (artist or song) |
| 116 | + * @return array response object |
| 117 | + */ |
| 118 | + function assets($start = 0, $per_page=100) |
| 119 | + { |
| 120 | + |
| 121 | + $response = $this->client->get('sandbox/list', array( |
| 122 | + 'sandbox' => $this->sandbox, |
| 123 | + 'results' => $per_page, |
| 124 | + 'start' => $start |
| 125 | + )); |
| 126 | + |
| 127 | + return $this->returnResponse($response); |
| 128 | + } |
| 129 | + |
| 130 | + function fetch($id) |
| 131 | + { |
| 132 | + |
| 133 | + $endpoint = "sandbox/access"; |
| 134 | + |
| 135 | + $time = time(); |
| 136 | + $params = array( |
| 137 | + "api_key" => $this->client->getHttpClient()->getOption('api_key'), |
| 138 | + "id" => $id, |
| 139 | + "oauth_nonce" => md5($time), |
| 140 | + "oauth_timestamp" => $time, |
| 141 | + "format" => $this->client->getHttpClient()->getOption('format'), |
| 142 | + "oauth_signature_method" => "HMAC-SHA1", |
| 143 | + "oauth_version" => "1.0", |
| 144 | + "oauth_consumer_key" => $this->oauth_config['consumer_key'], |
| 145 | + "sandbox" => $this->sandbox |
| 146 | + ); |
| 147 | + |
| 148 | + $url = strtr($this->client->getHttpClient()->getOption('url'), array( |
| 149 | + ':api_version' => $this->client->getHttpClient()->getOption('api_version'), |
| 150 | + ':protocol' => $this->client->getHttpClient()->getOption('protocol'), |
| 151 | + ':path' => trim($endpoint, '/') |
| 152 | + )); |
| 153 | + |
| 154 | + $sig = SignatureCreation::oauth_signature($url,$params, $this->oauth_config['consumer_secret']); |
| 155 | + |
| 156 | + $params['oauth_signature'] = $sig; |
| 157 | + |
| 158 | + |
| 159 | + $response = $this->client->get($endpoint, $params); |
| 160 | + |
| 161 | + return $this->returnResponse($response); |
| 162 | + |
| 163 | + } |
| 164 | +} |
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