Files
php-curl-class/src/Curl/Curl.php
T
2015-04-01 10:56:33 -07:00

665 lines
20 KiB
PHP

<?php
namespace Curl;
class Curl
{
const VERSION = '3.4.4';
const DEFAULT_TIMEOUT = 30;
public $curl;
public $id = null;
public $error = false;
public $error_code = 0;
public $error_message = null;
public $curl_error = false;
public $curl_error_code = 0;
public $curl_error_message = null;
public $http_error = false;
public $http_status_code = 0;
public $http_error_message = null;
public $base_url = null;
public $url = null;
public $request_headers = null;
public $response_headers = null;
public $raw_response_headers = '';
public $response = null;
public $raw_response = null;
public $before_send_function = null;
public $download_complete_function = null;
private $success_function = null;
private $error_function = null;
private $complete_function = null;
private $cookies = array();
private $headers = array();
private $options = array();
private $json_decoder = null;
private $json_pattern = '~^application/(?:json|vnd\.api\+json)~i';
private $xml_pattern = '~^(?:text/|application/(?:atom\+|rss\+)?)xml~i';
public function __construct($base_url = null)
{
if (!extension_loaded('curl')) {
throw new \ErrorException('cURL library is not loaded');
}
$this->curl = curl_init();
$this->id = 1;
$this->setDefaultUserAgent();
$this->setDefaultJsonDecoder();
$this->setDefaultTimeout();
$this->setOpt(CURLINFO_HEADER_OUT, true);
$this->setOpt(CURLOPT_HEADERFUNCTION, array($this, 'headerCallback'));
$this->setOpt(CURLOPT_RETURNTRANSFER, true);
$this->headers = new CaseInsensitiveArray();
$this->setURL($base_url);
}
public function beforeSend($callback)
{
$this->before_send_function = $callback;
}
public function buildPostData($data)
{
if (is_array($data)) {
if (self::is_array_multidim($data)) {
if (isset($this->headers['Content-Type']) &&
preg_match($this->json_pattern, $this->headers['Content-Type'])) {
$json_str = json_encode($data);
if (!($json_str === false)) {
$data = $json_str;
}
} else {
$data = self::http_build_multi_query($data);
}
} else {
$binary_data = false;
foreach ($data as $key => $value) {
// Fix "Notice: Array to string conversion" when $value in
// curl_setopt($ch, CURLOPT_POSTFIELDS, $value) is an array
// that contains an empty array.
if (is_array($value) && empty($value)) {
$data[$key] = '';
// Fix "curl_setopt(): The usage of the @filename API for
// file uploading is deprecated. Please use the CURLFile
// class instead".
} elseif (is_string($value) && strpos($value, '@') === 0) {
$binary_data = true;
if (class_exists('CURLFile')) {
$data[$key] = new \CURLFile(substr($value, 1));
}
} elseif ($value instanceof \CURLFile) {
$binary_data = true;
}
}
if (!$binary_data) {
if (isset($this->headers['Content-Type']) &&
preg_match($this->json_pattern, $this->headers['Content-Type'])) {
$json_str = json_encode($data);
if (!($json_str === false)) {
$data = $json_str;
}
} else {
$data = http_build_query($data, '', '&');
}
}
}
}
return $data;
}
public function call()
{
$args = func_get_args();
$function = array_shift($args);
if (is_callable($function)) {
array_unshift($args, $this);
call_user_func_array($function, $args);
}
}
public function close()
{
if (is_resource($this->curl)) {
curl_close($this->curl);
}
}
public function complete($callback)
{
$this->complete_function = $callback;
}
public function progress($callback)
{
$this->setOpt(CURLOPT_PROGRESSFUNCTION, $callback);
$this->setOpt(CURLOPT_NOPROGRESS, false);
}
public function delete($url, $data = array())
{
if (is_array($url)) {
$data = $url;
$url = $this->base_url;
}
$this->setURL($url, $data);
$this->unsetHeader('Content-Length');
$this->setOpt(CURLOPT_CUSTOMREQUEST, 'DELETE');
return $this->exec();
}
public function downloadComplete($fh)
{
if (!$this->error && $this->download_complete_function) {
rewind($fh);
$this->call($this->download_complete_function, $fh);
$this->download_complete_function = null;
}
if (is_resource($fh)) {
fclose($fh);
}
// Fix "PHP Notice: Use of undefined constant STDOUT" when reading the
// PHP script from stdin. Using null causes "Warning: curl_setopt():
// supplied argument is not a valid File-Handle resource".
if (!defined('STDOUT')) {
define('STDOUT', fopen('php://stdout', 'w'));
}
// Reset CURLOPT_FILE with STDOUT to avoid: "curl_exec(): CURLOPT_FILE
// resource has gone away, resetting to default".
$this->setOpt(CURLOPT_FILE, STDOUT);
// Reset CURLOPT_RETURNTRANSFER to tell cURL to return subsequent
// responses as the return value of curl_exec(). Without this,
// curl_exec() will revert to returning boolean values.
$this->setOpt(CURLOPT_RETURNTRANSFER, true);
}
public function download($url, $mixed_filename)
{
$callback = false;
if (is_callable($mixed_filename)) {
$this->download_complete_function = $mixed_filename;
$fh = tmpfile();
} else {
$filename = $mixed_filename;
$fh = fopen($filename, 'wb');
}
$this->setOpt(CURLOPT_FILE, $fh);
$this->get($url);
$this->downloadComplete($fh);
return ! $this->error;
}
public function error($callback)
{
$this->error_function = $callback;
}
public function exec($ch = null)
{
$target = $ch === null ? $this : $ch;
if (!($ch === null)) {
$this->raw_response = curl_multi_getcontent($ch);
} else {
$this->call($this->before_send_function);
$this->raw_response = curl_exec($this->curl);
$this->curl_error_code = curl_errno($this->curl);
}
$this->curl_error_message = curl_error($this->curl);
$this->curl_error = !($this->curl_error_code === 0);
$this->http_status_code = curl_getinfo($this->curl, CURLINFO_HTTP_CODE);
$this->http_error = in_array(floor($this->http_status_code / 100), array(4, 5));
$this->error = $this->curl_error || $this->http_error;
$this->error_code = $this->error ? ($this->curl_error ? $this->curl_error_code : $this->http_status_code) : 0;
$this->request_headers = $this->parseRequestHeaders(curl_getinfo($this->curl, CURLINFO_HEADER_OUT));
$this->response_headers = $this->parseResponseHeaders($this->raw_response_headers);
list($this->response, $this->raw_response) = $this->parseResponse($this->response_headers, $this->raw_response);
$this->http_error_message = '';
if ($this->error) {
if (isset($this->response_headers['Status-Line'])) {
$this->http_error_message = $this->response_headers['Status-Line'];
}
}
$this->error_message = $this->curl_error ? $this->curl_error_message : $this->http_error_message;
if (!$this->error) {
$this->call($this->success_function);
} else {
$this->call($this->error_function);
}
$this->call($this->complete_function);
return $this->response;
}
public function get($url, $data = array())
{
if (is_array($url)) {
$data = $url;
$url = $this->base_url;
}
$this->setURL($url, $data);
$this->setOpt(CURLOPT_CUSTOMREQUEST, 'GET');
$this->setOpt(CURLOPT_HTTPGET, true);
return $this->exec();
}
public function getOpt($option)
{
return $this->options[$option];
}
public function head($url, $data = array())
{
if (is_array($url)) {
$data = $url;
$url = $this->base_url;
}
$this->setURL($url, $data);
$this->setOpt(CURLOPT_CUSTOMREQUEST, 'HEAD');
$this->setOpt(CURLOPT_NOBODY, true);
return $this->exec();
}
public function headerCallback($ch, $header)
{
$this->raw_response_headers .= $header;
return strlen($header);
}
public function options($url, $data = array())
{
if (is_array($url)) {
$data = $url;
$url = $this->base_url;
}
$this->setURL($url, $data);
$this->unsetHeader('Content-Length');
$this->setOpt(CURLOPT_CUSTOMREQUEST, 'OPTIONS');
return $this->exec();
}
public function patch($url, $data = array())
{
if (is_array($url)) {
$data = $url;
$url = $this->base_url;
}
$this->setURL($url);
$this->unsetHeader('Content-Length');
$this->setOpt(CURLOPT_CUSTOMREQUEST, 'PATCH');
$this->setOpt(CURLOPT_POSTFIELDS, $data);
return $this->exec();
}
public function post($url, $data = array())
{
if (is_array($url)) {
$data = $url;
$url = $this->base_url;
}
if (is_array($data) && empty($data)) {
$this->unsetHeader('Content-Length');
}
$this->setURL($url);
$this->setOpt(CURLOPT_CUSTOMREQUEST, 'POST');
$this->setOpt(CURLOPT_POST, true);
$this->setOpt(CURLOPT_POSTFIELDS, $this->buildPostData($data));
return $this->exec();
}
public function put($url, $data = array())
{
if (is_array($url)) {
$data = $url;
$url = $this->base_url;
}
$this->setURL($url);
$this->setOpt(CURLOPT_CUSTOMREQUEST, 'PUT');
$put_data = $this->buildPostData($data);
if (empty($this->options[CURLOPT_INFILE]) && empty($this->options[CURLOPT_INFILESIZE])) {
$this->setHeader('Content-Length', strlen($put_data));
}
$this->setOpt(CURLOPT_POSTFIELDS, $put_data);
return $this->exec();
}
public function setBasicAuthentication($username, $password = '')
{
$this->setOpt(CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
$this->setOpt(CURLOPT_USERPWD, $username . ':' . $password);
}
public function setDigestAuthentication($username, $password = '')
{
$this->setOpt(CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
$this->setOpt(CURLOPT_USERPWD, $username . ':' . $password);
}
public function setCookie($key, $value)
{
$this->cookies[$key] = $value;
$this->setOpt(CURLOPT_COOKIE, str_replace('+', '%20', http_build_query($this->cookies, '', '; ')));
}
public function setCookieFile($cookie_file)
{
$this->setOpt(CURLOPT_COOKIEFILE, $cookie_file);
}
public function setCookieJar($cookie_jar)
{
$this->setOpt(CURLOPT_COOKIEJAR, $cookie_jar);
}
public function setDefaultJsonDecoder()
{
$this->json_decoder = function($response) {
$json_obj = json_decode($response, false);
if (!($json_obj === null)) {
$response = $json_obj;
}
return $response;
};
}
public function setDefaultTimeout()
{
$this->setTimeout(self::DEFAULT_TIMEOUT);
}
public function setDefaultUserAgent()
{
$user_agent = 'PHP-Curl-Class/' . self::VERSION . ' (+https://github.com/php-curl-class/php-curl-class)';
$user_agent .= ' PHP/' . PHP_VERSION;
$curl_version = curl_version();
$user_agent .= ' curl/' . $curl_version['version'];
$this->setUserAgent($user_agent);
}
public function setHeader($key, $value)
{
$this->headers[$key] = $value;
$headers = array();
foreach ($this->headers as $key => $value) {
$headers[$key] = $value;
}
$this->setOpt(CURLOPT_HTTPHEADER, array_map(function($value, $key) {
return $key . ': ' . $value;
}, $headers, array_keys($headers)));
}
public function setJsonDecoder($function)
{
if (is_callable($function)) {
$this->json_decoder = $function;
}
}
public function setOpt($option, $value)
{
$required_options = array(
CURLINFO_HEADER_OUT => 'CURLINFO_HEADER_OUT',
CURLOPT_RETURNTRANSFER => 'CURLOPT_RETURNTRANSFER',
);
if (in_array($option, array_keys($required_options), true) && !($value === true)) {
trigger_error($required_options[$option] . ' is a required option', E_USER_WARNING);
}
$this->options[$option] = $value;
return curl_setopt($this->curl, $option, $value);
}
public function setReferer($referer)
{
$this->setReferrer($referer);
}
public function setReferrer($referrer)
{
$this->setOpt(CURLOPT_REFERER, $referrer);
}
public function setTimeout($seconds)
{
$this->setOpt(CURLOPT_TIMEOUT, $seconds);
}
public function setURL($url, $data = array())
{
$this->base_url = $url;
$this->url = $this->buildURL($url, $data);
$this->setOpt(CURLOPT_URL, $this->url);
}
public function setUserAgent($user_agent)
{
$this->setOpt(CURLOPT_USERAGENT, $user_agent);
}
public function success($callback)
{
$this->success_function = $callback;
}
public function unsetHeader($key)
{
$this->setHeader($key, '');
unset($this->headers[$key]);
}
public function verbose($on = true)
{
$this->setOpt(CURLOPT_VERBOSE, $on);
}
public function __destruct()
{
$this->close();
}
private function buildURL($url, $data = array())
{
return $url . (empty($data) ? '' : '?' . http_build_query($data));
}
private function parseHeaders($raw_headers)
{
$raw_headers = preg_split('/\r\n/', $raw_headers, null, PREG_SPLIT_NO_EMPTY);
$http_headers = new CaseInsensitiveArray();
for ($i = 1; $i < count($raw_headers); $i++) {
list($key, $value) = explode(':', $raw_headers[$i], 2);
$key = trim($key);
$value = trim($value);
// Use isset() as array_key_exists() and ArrayAccess are not compatible.
if (isset($http_headers[$key])) {
$http_headers[$key] .= ',' . $value;
} else {
$http_headers[$key] = $value;
}
}
return array(isset($raw_headers['0']) ? $raw_headers['0'] : '', $http_headers);
}
private function parseRequestHeaders($raw_headers)
{
$request_headers = new CaseInsensitiveArray();
list($first_line, $headers) = $this->parseHeaders($raw_headers);
$request_headers['Request-Line'] = $first_line;
foreach ($headers as $key => $value) {
$request_headers[$key] = $value;
}
return $request_headers;
}
private function parseResponse($response_headers, $raw_response)
{
$response = $raw_response;
if (isset($response_headers['Content-Type'])) {
if (preg_match($this->json_pattern, $response_headers['Content-Type'])) {
$json_decoder = $this->json_decoder;
$response = $json_decoder($response);
} elseif (preg_match($this->xml_pattern, $response_headers['Content-Type'])) {
$xml_obj = @simplexml_load_string($response);
if (!($xml_obj === false)) {
$response = $xml_obj;
}
}
}
return array($response, $raw_response);
}
private function parseResponseHeaders($raw_response_headers)
{
$response_header_array = explode("\r\n\r\n", $raw_response_headers);
$response_header = '';
for ($i = count($response_header_array) - 1; $i >= 0; $i--) {
if (stripos($response_header_array[$i], 'HTTP/') === 0) {
$response_header = $response_header_array[$i];
break;
}
}
$response_headers = new CaseInsensitiveArray();
list($first_line, $headers) = $this->parseHeaders($response_header);
$response_headers['Status-Line'] = $first_line;
foreach ($headers as $key => $value) {
$response_headers[$key] = $value;
}
return $response_headers;
}
public static function http_build_multi_query($data, $key = null)
{
$query = array();
if (empty($data)) {
return $key . '=';
}
$is_array_assoc = self::is_array_assoc($data);
foreach ($data as $k => $value) {
if (is_string($value) || is_numeric($value)) {
$brackets = $is_array_assoc ? '[' . $k . ']' : '[]';
$query[] = urlencode($key === null ? $k : $key . $brackets) . '=' . rawurlencode($value);
} elseif (is_array($value)) {
$nested = $key === null ? $k : $key . '[' . $k . ']';
$query[] = self::http_build_multi_query($value, $nested);
}
}
return implode('&', $query);
}
public static function is_array_assoc($array)
{
return (bool)count(array_filter(array_keys($array), 'is_string'));
}
public static function is_array_multidim($array)
{
if (!is_array($array)) {
return false;
}
return (bool)count(array_filter($array, 'is_array'));
}
}
class CaseInsensitiveArray implements \ArrayAccess, \Countable, \Iterator
{
private $container = array();
public function offsetSet($offset, $value)
{
if ($offset === null) {
$this->container[] = $value;
} else {
$index = array_search(strtolower($offset), array_keys(array_change_key_case($this->container, CASE_LOWER)));
if (!($index === false)) {
$keys = array_keys($this->container);
unset($this->container[$keys[$index]]);
}
$this->container[$offset] = $value;
}
}
public function offsetExists($offset)
{
return array_key_exists(strtolower($offset), array_change_key_case($this->container, CASE_LOWER));
}
public function offsetUnset($offset)
{
unset($this->container[$offset]);
}
public function offsetGet($offset)
{
$index = array_search(strtolower($offset), array_keys(array_change_key_case($this->container, CASE_LOWER)));
if ($index === false) {
return null;
}
$values = array_values($this->container);
return $values[$index];
}
public function count()
{
return count($this->container);
}
public function current()
{
return current($this->container);
}
public function next()
{
return next($this->container);
}
public function key()
{
return key($this->container);
}
public function valid()
{
return !($this->current() === false);
}
public function rewind()
{
reset($this->container);
}
}