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annotate Http.inc @ 108:f2996720e6d6

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Embed some flags, support for overriding.
author Tom Fredrik "BFG" Klaussen <bfg@blenning.no>
date Mon, 07 Mar 2016 20:44:43 +0100
parents 2370f4450983
children 111770d32c2e
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1 <?php
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2 include_once 'ScriptIncludeCache.inc';
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3
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4 /// @cond
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5 $baseDir = dirname(__FILE__);
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6 $cache = ScriptIncludeCache::instance(__FILE__);
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7 /// @endcond
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8
94
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9 /**
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10 * Thrown if a request has gone bad
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11 */
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12 class RequestException extends RuntimeException
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13 {
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14 private $_info;
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15
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16 /**
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17 * Constructs a RequestException
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18 *
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19 * @param $info an info array as defined in http_get, if a key with
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20 * name error exist, this will be the error text for the
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21 * RuntimeException
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22 */
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23 function __construct($info)
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24 {
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25 $this->_info = $info;
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26 if (array_key_exists('error', $info)) {
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27 parent::__construct($info['error']);
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28 }
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29 }
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30
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31 /**
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32 * Get the info object associated with this RequestException
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33 *
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34 * @return $info an info array as defined in http_get
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35 */
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36 function info()
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37 {
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38 return $this->_info;
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39 }
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40 }
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41
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42 /**
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43 * Http contains a set of functions for retrieving http information
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44 */
93
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45 class Http
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46 {
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47 /**
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48 * Gets the content of a page
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49 *
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50 * This mimics the file_content with a uri parameter which is often
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51 * disabled due to security reasons
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52 *
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53 * @param $uri The uri to fetch
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54 */
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55 static function get_uri_contents($uri)
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56 {
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57 $crl = curl_init();
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58 $timeout = 5;
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59
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60 curl_setopt ($crl, CURLOPT_URL, $uri);
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61 curl_setopt ($crl, CURLOPT_RETURNTRANSFER, 1);
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62 curl_setopt ($crl, CURLOPT_CONNECTTIMEOUT, $timeout);
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63 $ret = curl_exec($crl);
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64 curl_close($crl);
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65 return $ret;
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66 }
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67
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68 /**
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69 * Splits an http header response into an associative array
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70 *
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71 * @param $response The headers to parse
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72 * @return an Associative array, the key '' refers to the HTTP status header
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73 */
93
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74 static function headersToArray($response)
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75 {
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76 $headers = array();
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77 $response = trim($response);
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78 $str = explode("\n", $response);
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79 $headers[''] = trim($str[0]);
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80 foreach($str as $kv) {
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81 $p = strpos($kv, ":");
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82 if ($p) {
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83 $key = substr($kv, 0, $p);
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84 $value = trim(substr($kv, $p + 1));
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85 $headers[$key] = $value;
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86 }
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87 }
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88 return $headers;
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89 }
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90
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91 /**
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92 * Queries a URL for headers
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93 *
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94 * @param $url the url to query
94
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95 * @param $timeout float number of seconds to wait before timeout
93
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96 * @return an associative array of all headers returned
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97 */
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98 static function getHeaders($url, $timeout = 1)
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99 {
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100 $response = @http_head($url, array("timeout" => $timeout), $info);
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101
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102 if (array_key_exists('error', $info) && $info['error']) {
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103 throw new RequestException($info);
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104 }
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105
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106 return self::headersToArray($response);
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107 }
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108
94
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109 /**
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110 * Performs a post to an URI for headers
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111 *
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112 * @param $uri the uri to query
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113 * @param $params an associative array of params to post
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114 * @param $timeout float number of seconds to wait before timeout
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115 * @return an associative array of all headers returned
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116 */
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117 static function postHeaders($uri, $params, $timeout = 1)
93
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118 {
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119 $crl = curl_init();
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120
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121 $descriptorspec = array(
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122 0 => array("pipe", "r"),
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123 1 => array("pipe", "w"),
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124 //2 => array("file", "/tmp/error-output.txt", "a")
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125 );
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126
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127 //We use tac, since it buffers, and we don't care about the output
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128 //being reordered.
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129 $process = proc_open('tac | tac', $descriptorspec, $pipes);
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130
94
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131 curl_setopt ($crl, CURLOPT_URL, $uri);
93
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132 curl_setopt ($crl, CURLOPT_WRITEHEADER, $pipes[0]);
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133 curl_setopt ($crl, CURLOPT_NOBODY, true);
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134 curl_setopt ($crl, CURLOPT_POST, true);
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135 curl_setopt ($crl, CURLOPT_POSTFIELDS, $params);
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136
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137 curl_setopt ($crl, CURLOPT_RETURNTRANSFER, 1);
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138 curl_setopt ($crl, CURLOPT_CONNECTTIMEOUT, $timeout);
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139 $ret = curl_exec($crl);
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140 curl_close($crl);
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141
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142 fclose($pipes[0]);
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143 $buf = fread($pipes[1], 8192);
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144
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145 return self::headersToArray($buf);
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146 }
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147 }
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148 ?>