[289] | 1 | <?php defined('BASEPATH') OR exit('No direct script access allowed'); |
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| 2 | |
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| 3 | /** |
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| 4 | * CodeIgniter Curl Class |
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| 5 | * |
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| 6 | * Work with remote servers via cURL much easier than using the native PHP bindings. |
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| 7 | * |
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| 8 | * @package CodeIgniter |
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| 9 | * @subpackage Libraries |
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| 10 | * @category Libraries |
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| 11 | * @author Philip Sturgeon |
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| 12 | * @license http://philsturgeon.co.uk/code/dbad-license |
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| 13 | * @link http://philsturgeon.co.uk/code/codeigniter-curl |
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| 14 | */ |
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| 15 | class Curl { |
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| 16 | |
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| 17 | protected $_ci; // CodeIgniter instance |
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| 18 | protected $response = ''; // Contains the cURL response for debug |
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| 19 | protected $session; // Contains the cURL handler for a session |
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| 20 | protected $url; // URL of the session |
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| 21 | protected $options = array(); // Populates curl_setopt_array |
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| 22 | protected $headers = array(); // Populates extra HTTP headers |
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| 23 | public $error_code; // Error code returned as an int |
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| 24 | public $error_string; // Error message returned as a string |
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| 25 | public $info; // Returned after request (elapsed time, etc) |
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| 26 | |
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| 27 | function __construct($url = '') |
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| 28 | { |
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| 29 | $this->_ci = & get_instance(); |
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| 30 | log_message('debug', 'cURL Class Initialized'); |
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| 31 | |
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| 32 | if ( ! $this->is_enabled()) |
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| 33 | { |
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| 34 | log_message('error', 'cURL Class - PHP was not built with cURL enabled. Rebuild PHP with --with-curl to use cURL.'); |
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| 35 | } |
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| 36 | |
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| 37 | $url AND $this->create($url); |
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| 38 | } |
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| 39 | |
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| 40 | public function __call($method, $arguments) |
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| 41 | { |
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| 42 | if (in_array($method, array('simple_get', 'simple_post', 'simple_put', 'simple_delete', 'simple_patch'))) |
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| 43 | { |
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| 44 | // Take off the "simple_" and past get/post/put/delete/patch to _simple_call |
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| 45 | $verb = str_replace('simple_', '', $method); |
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| 46 | array_unshift($arguments, $verb); |
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| 47 | return call_user_func_array(array($this, '_simple_call'), $arguments); |
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| 48 | } |
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| 49 | } |
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| 50 | |
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| 51 | /* ================================================================================= |
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| 52 | * SIMPLE METHODS |
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| 53 | * Using these methods you can make a quick and easy cURL call with one line. |
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| 54 | * ================================================================================= */ |
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| 55 | |
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| 56 | public function _simple_call($method, $url, $params = array(), $options = array()) |
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| 57 | { |
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| 58 | // Get acts differently, as it doesnt accept parameters in the same way |
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| 59 | if ($method === 'get') |
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| 60 | { |
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| 61 | // If a URL is provided, create new session |
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| 62 | $this->create($url.($params ? '?'.http_build_query($params, NULL, '&') : '')); |
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| 63 | } |
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| 64 | |
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| 65 | else |
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| 66 | { |
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| 67 | // If a URL is provided, create new session |
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| 68 | $this->create($url); |
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| 69 | |
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| 70 | $this->{$method}($params); |
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| 71 | } |
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| 72 | |
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| 73 | // Add in the specific options provided |
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| 74 | $this->options($options); |
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| 75 | |
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| 76 | return $this->execute(); |
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| 77 | } |
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| 78 | |
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| 79 | public function simple_ftp_get($url, $file_path, $username = '', $password = '') |
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| 80 | { |
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| 81 | // If there is no ftp:// or any protocol entered, add ftp:// |
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| 82 | if ( ! preg_match('!^(ftp|sftp)://! i', $url)) |
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| 83 | { |
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| 84 | $url = 'ftp://' . $url; |
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| 85 | } |
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| 86 | |
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| 87 | // Use an FTP login |
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| 88 | if ($username != '') |
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| 89 | { |
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| 90 | $auth_string = $username; |
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| 91 | |
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| 92 | if ($password != '') |
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| 93 | { |
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| 94 | $auth_string .= ':' . $password; |
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| 95 | } |
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| 96 | |
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| 97 | // Add the user auth string after the protocol |
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| 98 | $url = str_replace('://', '://' . $auth_string . '@', $url); |
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| 99 | } |
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| 100 | |
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| 101 | // Add the filepath |
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| 102 | $url .= $file_path; |
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| 103 | |
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| 104 | $this->option(CURLOPT_BINARYTRANSFER, TRUE); |
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| 105 | $this->option(CURLOPT_VERBOSE, TRUE); |
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| 106 | |
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| 107 | return $this->execute(); |
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| 108 | } |
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| 109 | |
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| 110 | /* ================================================================================= |
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| 111 | * ADVANCED METHODS |
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| 112 | * Use these methods to build up more complex queries |
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| 113 | * ================================================================================= */ |
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| 114 | |
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| 115 | public function post($params = array(), $options = array()) |
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| 116 | { |
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| 117 | // If its an array (instead of a query string) then format it correctly |
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| 118 | if (is_array($params)) |
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| 119 | { |
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| 120 | $params = http_build_query($params, NULL, '&'); |
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| 121 | } |
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| 122 | |
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| 123 | // Add in the specific options provided |
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| 124 | $this->options($options); |
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| 125 | |
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| 126 | $this->http_method('post'); |
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| 127 | |
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| 128 | $this->option(CURLOPT_POST, TRUE); |
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| 129 | $this->option(CURLOPT_POSTFIELDS, $params); |
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| 130 | } |
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| 131 | |
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| 132 | public function put($params = array(), $options = array()) |
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| 133 | { |
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| 134 | // If its an array (instead of a query string) then format it correctly |
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| 135 | if (is_array($params)) |
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| 136 | { |
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| 137 | $params = http_build_query($params, NULL, '&'); |
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| 138 | } |
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| 139 | |
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| 140 | // Add in the specific options provided |
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| 141 | $this->options($options); |
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| 142 | |
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| 143 | $this->http_method('put'); |
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| 144 | $this->option(CURLOPT_POSTFIELDS, $params); |
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| 145 | |
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| 146 | // Override method, I think this overrides $_POST with PUT data but... we'll see eh? |
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| 147 | $this->option(CURLOPT_HTTPHEADER, array('X-HTTP-Method-Override: PUT')); |
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| 148 | } |
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| 149 | |
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| 150 | public function patch($params = array(), $options = array()) |
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| 151 | { |
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| 152 | // If its an array (instead of a query string) then format it correctly |
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| 153 | if (is_array($params)) |
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| 154 | { |
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| 155 | $params = http_build_query($params, NULL, '&'); |
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| 156 | } |
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| 157 | |
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| 158 | // Add in the specific options provided |
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| 159 | $this->options($options); |
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| 160 | |
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| 161 | $this->http_method('patch'); |
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| 162 | $this->option(CURLOPT_POSTFIELDS, $params); |
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| 163 | |
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| 164 | // Override method, I think this overrides $_POST with PATCH data but... we'll see eh? |
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| 165 | $this->option(CURLOPT_HTTPHEADER, array('X-HTTP-Method-Override: PATCH')); |
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| 166 | } |
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| 167 | |
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| 168 | public function delete($params, $options = array()) |
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| 169 | { |
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| 170 | // If its an array (instead of a query string) then format it correctly |
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| 171 | if (is_array($params)) |
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| 172 | { |
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| 173 | $params = http_build_query($params, NULL, '&'); |
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| 174 | } |
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| 175 | |
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| 176 | // Add in the specific options provided |
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| 177 | $this->options($options); |
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| 178 | |
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| 179 | $this->http_method('delete'); |
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| 180 | |
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| 181 | $this->option(CURLOPT_POSTFIELDS, $params); |
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| 182 | } |
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| 183 | |
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| 184 | public function set_cookies($params = array()) |
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| 185 | { |
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| 186 | if (is_array($params)) |
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| 187 | { |
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| 188 | $params = http_build_query($params, NULL, '&'); |
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| 189 | } |
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| 190 | |
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| 191 | $this->option(CURLOPT_COOKIE, $params); |
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| 192 | return $this; |
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| 193 | } |
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| 194 | |
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| 195 | public function http_header($header, $content = NULL) |
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| 196 | { |
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| 197 | $this->headers[] = $content ? $header . ': ' . $content : $header; |
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| 198 | return $this; |
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| 199 | } |
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| 200 | |
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| 201 | public function http_method($method) |
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| 202 | { |
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| 203 | $this->options[CURLOPT_CUSTOMREQUEST] = strtoupper($method); |
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| 204 | return $this; |
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| 205 | } |
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| 206 | |
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| 207 | public function http_login($username = '', $password = '', $type = 'any') |
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| 208 | { |
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| 209 | $this->option(CURLOPT_HTTPAUTH, constant('CURLAUTH_' . strtoupper($type))); |
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| 210 | $this->option(CURLOPT_USERPWD, $username . ':' . $password); |
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| 211 | return $this; |
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| 212 | } |
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| 213 | |
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| 214 | public function proxy($url = '', $port = 80) |
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| 215 | { |
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| 216 | $this->option(CURLOPT_HTTPPROXYTUNNEL, TRUE); |
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| 217 | $this->option(CURLOPT_PROXY, $url . ':' . $port); |
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| 218 | return $this; |
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| 219 | } |
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| 220 | |
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| 221 | public function proxy_login($username = '', $password = '') |
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| 222 | { |
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| 223 | $this->option(CURLOPT_PROXYUSERPWD, $username . ':' . $password); |
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| 224 | return $this; |
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| 225 | } |
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| 226 | |
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| 227 | public function ssl($verify_peer = TRUE, $verify_host = 2, $path_to_cert = NULL) |
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| 228 | { |
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| 229 | if ($verify_peer) |
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| 230 | { |
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| 231 | $this->option(CURLOPT_SSL_VERIFYPEER, TRUE); |
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| 232 | $this->option(CURLOPT_SSL_VERIFYHOST, $verify_host); |
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| 233 | if (isset($path_to_cert)) { |
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| 234 | $path_to_cert = realpath($path_to_cert); |
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| 235 | $this->option(CURLOPT_CAINFO, $path_to_cert); |
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| 236 | } |
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| 237 | } |
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| 238 | else |
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| 239 | { |
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| 240 | $this->option(CURLOPT_SSL_VERIFYPEER, FALSE); |
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| 241 | $this->option(CURLOPT_SSL_VERIFYHOST, $verify_host); |
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| 242 | } |
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| 243 | return $this; |
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| 244 | } |
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| 245 | |
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| 246 | public function options($options = array()) |
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| 247 | { |
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| 248 | // Merge options in with the rest - done as array_merge() does not overwrite numeric keys |
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| 249 | foreach ($options as $option_code => $option_value) |
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| 250 | { |
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| 251 | $this->option($option_code, $option_value); |
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| 252 | } |
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| 253 | |
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| 254 | // Set all options provided |
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| 255 | curl_setopt_array($this->session, $this->options); |
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| 256 | |
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| 257 | return $this; |
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| 258 | } |
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| 259 | |
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| 260 | public function option($code, $value, $prefix = 'opt') |
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| 261 | { |
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| 262 | if (is_string($code) && !is_numeric($code)) |
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| 263 | { |
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| 264 | $code = constant('CURL' . strtoupper($prefix) . '_' . strtoupper($code)); |
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| 265 | } |
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| 266 | |
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| 267 | $this->options[$code] = $value; |
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| 268 | return $this; |
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| 269 | } |
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| 270 | |
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| 271 | // Start a session from a URL |
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| 272 | public function create($url) |
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| 273 | { |
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| 274 | // If no a protocol in URL, assume its a CI link |
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| 275 | if ( ! preg_match('!^\w+://! i', $url)) |
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| 276 | { |
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| 277 | $this->_ci->load->helper('url'); |
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| 278 | $url = site_url($url); |
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| 279 | } |
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| 280 | |
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| 281 | $this->url = $url; |
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| 282 | $this->session = curl_init($this->url); |
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| 283 | |
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| 284 | return $this; |
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| 285 | } |
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| 286 | |
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| 287 | // End a session and return the results |
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| 288 | public function execute() |
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| 289 | { |
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| 290 | // Set two default options, and merge any extra ones in |
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| 291 | if ( ! isset($this->options[CURLOPT_TIMEOUT])) |
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| 292 | { |
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| 293 | $this->options[CURLOPT_TIMEOUT] = 30; |
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| 294 | } |
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| 295 | if ( ! isset($this->options[CURLOPT_RETURNTRANSFER])) |
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| 296 | { |
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| 297 | $this->options[CURLOPT_RETURNTRANSFER] = TRUE; |
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| 298 | } |
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| 299 | if ( ! isset($this->options[CURLOPT_FAILONERROR])) |
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| 300 | { |
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| 301 | $this->options[CURLOPT_FAILONERROR] = TRUE; |
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| 302 | } |
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| 303 | |
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| 304 | // Only set follow location if not running securely |
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| 305 | if ( ! ini_get('safe_mode') && ! ini_get('open_basedir')) |
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| 306 | { |
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| 307 | // Ok, follow location is not set already so lets set it to true |
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| 308 | if ( ! isset($this->options[CURLOPT_FOLLOWLOCATION])) |
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| 309 | { |
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| 310 | $this->options[CURLOPT_FOLLOWLOCATION] = TRUE; |
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| 311 | } |
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| 312 | } |
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| 313 | |
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| 314 | if ( ! empty($this->headers)) |
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| 315 | { |
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| 316 | $this->option(CURLOPT_HTTPHEADER, $this->headers); |
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| 317 | } |
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| 318 | |
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| 319 | $this->options(); |
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| 320 | |
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| 321 | // Execute the request & and hide all output |
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| 322 | $this->response = curl_exec($this->session); |
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| 323 | $this->info = curl_getinfo($this->session); |
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| 324 | |
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| 325 | // Request failed |
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| 326 | if ($this->response === FALSE) |
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| 327 | { |
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| 328 | $errno = curl_errno($this->session); |
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| 329 | $error = curl_error($this->session); |
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| 330 | |
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| 331 | curl_close($this->session); |
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| 332 | $this->set_defaults(); |
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| 333 | |
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| 334 | $this->error_code = $errno; |
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| 335 | $this->error_string = $error; |
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| 336 | |
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| 337 | return FALSE; |
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| 338 | } |
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| 339 | |
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| 340 | // Request successful |
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| 341 | else |
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| 342 | { |
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| 343 | curl_close($this->session); |
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| 344 | $this->last_response = $this->response; |
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| 345 | $this->set_defaults(); |
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| 346 | return $this->last_response; |
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| 347 | } |
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| 348 | } |
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| 349 | |
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| 350 | public function is_enabled() |
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| 351 | { |
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| 352 | return function_exists('curl_init'); |
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| 353 | } |
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| 354 | |
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| 355 | public function debug() |
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| 356 | { |
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| 357 | echo "=============================================<br/>\n"; |
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| 358 | echo "<h2>CURL Test</h2>\n"; |
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| 359 | echo "=============================================<br/>\n"; |
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| 360 | echo "<h3>Response</h3>\n"; |
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| 361 | echo "<code>" . nl2br(htmlentities($this->last_response)) . "</code><br/>\n\n"; |
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| 362 | |
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| 363 | if ($this->error_string) |
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| 364 | { |
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| 365 | echo "=============================================<br/>\n"; |
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| 366 | echo "<h3>Errors</h3>"; |
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| 367 | echo "<strong>Code:</strong> " . $this->error_code . "<br/>\n"; |
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| 368 | echo "<strong>Message:</strong> " . $this->error_string . "<br/>\n"; |
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| 369 | } |
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| 370 | |
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| 371 | echo "=============================================<br/>\n"; |
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| 372 | echo "<h3>Info</h3>"; |
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| 373 | echo "<pre>"; |
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| 374 | print_r($this->info); |
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| 375 | echo "</pre>"; |
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| 376 | } |
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| 377 | |
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| 378 | public function debug_request() |
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| 379 | { |
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| 380 | return array( |
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| 381 | 'url' => $this->url |
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| 382 | ); |
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| 383 | } |
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| 384 | |
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| 385 | public function set_defaults() |
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| 386 | { |
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| 387 | $this->response = ''; |
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| 388 | $this->headers = array(); |
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| 389 | $this->options = array(); |
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| 390 | $this->error_code = NULL; |
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| 391 | $this->error_string = ''; |
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| 392 | $this->session = NULL; |
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| 393 | } |
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| 394 | |
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| 395 | } |
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| 396 | |
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| 397 | /* End of file Curl.php */ |
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| 398 | /* Location: ./application/libraries/Curl.php */ |
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