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120 lines
4.0 KiB
120 lines
4.0 KiB
<?php
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namespace p3k;
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class HTTPCurl {
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public $timeout = 4;
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public $max_redirects = 8;
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public function get($url) {
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$ch = curl_init($url);
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$this->_set_curlopts($ch, $url);
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$response = curl_exec($ch);
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$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
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return array(
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'code' => curl_getinfo($ch, CURLINFO_HTTP_CODE),
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'headers' => self::parse_headers(trim(substr($response, 0, $header_size))),
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'body' => substr($response, $header_size),
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'error' => self::error_string_from_code(curl_errno($ch)),
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'error_description' => curl_error($ch),
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'error_code' => curl_errno($ch),
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);
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}
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public function post($url, $body, $headers=array()) {
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$ch = curl_init($url);
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$this->_set_curlopts($ch, $url);
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curl_setopt($ch, CURLOPT_POST, true);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
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curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
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$response = curl_exec($ch);
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$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
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return array(
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'code' => curl_getinfo($ch, CURLINFO_HTTP_CODE),
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'headers' => self::parse_headers(trim(substr($response, 0, $header_size))),
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'body' => substr($response, $header_size),
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'error' => self::error_string_from_code(curl_errno($ch)),
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'error_description' => curl_error($ch),
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'error_code' => curl_errno($ch),
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);
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}
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public function head($url) {
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$ch = curl_init($url);
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$this->_set_curlopts($ch, $url);
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curl_setopt($ch, CURLOPT_NOBODY, true);
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$response = curl_exec($ch);
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return array(
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'code' => curl_getinfo($ch, CURLINFO_HTTP_CODE),
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'headers' => self::parse_headers(trim($response)),
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'error' => self::error_string_from_code(curl_errno($ch)),
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'error_description' => curl_error($ch),
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'error_code' => curl_errno($ch),
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);
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}
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private function _set_curlopts($ch, $url) {
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_HEADER, true);
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// Special-case appspot.com URLs to not follow redirects.
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// https://cloud.google.com/appengine/docs/php/urlfetch/
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if(should_follow_redirects($url)) {
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($ch, CURLOPT_MAXREDIRS, $this->max_redirects);
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} else {
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
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}
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curl_setopt($ch, CURLOPT_TIMEOUT_MS, round($this->timeout * 1000));
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}
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public static function error_string_from_code($code) {
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switch($code) {
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case 0:
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return '';
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case CURLE_COULDNT_RESOLVE_HOST:
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return 'dns_error';
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case CURLE_COULDNT_CONNECT:
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return 'connect_error';
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case CURLE_OPERATION_TIMEDOUT:
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return 'timeout';
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case CURLE_SSL_CONNECT_ERROR:
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return 'ssl_error';
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case CURLE_SSL_CERTPROBLEM:
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return 'ssl_cert_error';
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case CURLE_SSL_CIPHER:
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return 'ssl_unsupported_cipher';
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case CURLE_SSL_CACERT:
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return 'ssl_cert_error';
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case CURLE_TOO_MANY_REDIRECTS:
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return 'too_many_redirects';
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default:
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return 'unknown';
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}
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}
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public static function parse_headers($headers) {
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$retVal = array();
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$fields = explode("\r\n", preg_replace('/\x0D\x0A[\x09\x20]+/', ' ', $headers));
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foreach($fields as $field) {
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if(preg_match('/([^:]+): (.+)/m', $field, $match)) {
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$match[1] = preg_replace_callback('/(?<=^|[\x09\x20\x2D])./', function($m) {
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return strtoupper($m[0]);
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}, strtolower(trim($match[1])));
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// If there's already a value set for the header name being returned, turn it into an array and add the new value
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$match[1] = preg_replace_callback('/(?<=^|[\x09\x20\x2D])./', function($m) {
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return strtoupper($m[0]);
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}, strtolower(trim($match[1])));
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if(isset($retVal[$match[1]])) {
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if(!is_array($retVal[$match[1]]))
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$retVal[$match[1]] = array($retVal[$match[1]]);
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$retVal[$match[1]][] = $match[2];
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} else {
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$retVal[$match[1]] = trim($match[2]);
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}
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}
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}
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return $retVal;
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}
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}
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