cvs: pear /PHP_Compat/Compat/Function file_get_contents.php

arpad Mon Jan 2 19:30:12 2006 UTC Modified files: /pear/PHP_Compat/Compat/Function file_get_contents.php Log: initial stream context support (http) http://cvs.php.net/viewcvs.cgi/pear/PHP_Compat/Compat/Function/file_get_contents.php?r1=1.22&r2=1.23&diff_format=u Index: pear/PHP_Compat/Compat/Function/file_get_contents.php diff -u pear/PHP_Compat/Compat/Function/file_get_contents.php:1.22 pear/PHP_Compat/Compat/Function/file_get_contents.php:1.23 --- pear/PHP_Compat/Compat/Function/file_get_contents.php:1.22 Mon Dec 19 23:45:29 2005 +++ pear/PHP_Compat/Compat/Function/file_get_contents.php Mon Jan 2 19:30:12 2006 @@ -13,10 +13,12 @@ // | license@php.net so we can mail you a copy immediately. | // +----------------------------------------------------------------------+ // | Authors: Aidan Lister <aidan@php.net> | +// | Arpad Ray <arpad@php.net> | // +----------------------------------------------------------------------+ // -// $Id: file_get_contents.php,v 1.22 2005/12/19 23:45:29 aidan Exp $ +// $Id: file_get_contents.php,v 1.23 2006/01/02 19:30:12 arpad Exp $ +define('PHP_COMPAT_FILE_GET_CONTENTS_MAX_REDIRECTS', 5); /** * Replace file_get_contents() @@ -25,15 +27,48 @@ * @package PHP_Compat * @link http://php.net/function.file_get_contents * @author Aidan Lister <aidan@php.net> - * @version $Revision: 1.22 $ - * @internal resource_context is not supported + * @author Arpad Ray <arpad@php.net> + * @version $Revision: 1.23 $ + * @internal resource_context is only supported for PHP 4.3.0+ (stream_context_get_options) * @since PHP 5 * @require PHP 4.0.0 (user_error) */ function php_compat_file_get_contents($filename, $incpath = false, $resource_context = null) { + if (is_resource($resource_context) && function_exists('stream_context_get_options')) { + $opts = stream_context_get_options($resource_context); + } + + $colon_pos = strpos($filename, '://'); + $wrapper = $colon_pos === false ? 'file' : substr($filename, 0, $colon_pos); + $opts = (empty($opts) || empty($opts[$wrapper])) ? array() : $opts[$wrapper]; + + switch ($wrapper) { + case 'http': + $max_redirects = (isset($opts[$wrapper]['max_redirects']) + ? $opts[$proto]['max_redirects'] + : PHP_COMPAT_FILE_GET_CONTENTS_MAX_REDIRECTS); + for ($i = 0; $i < $max_redirects; $i++) { + $contents = php_compat_http_get_contents_helper($filename, $opts); + if (is_array($contents)) { + // redirected + $filename = rtrim($contents[1]); + $contents = ''; + continue; + } + return $contents; + } + user_error('redirect limit exceeded', E_USER_WARNING); + return; + case 'ftp': + case 'https': + case 'ftps': + case 'socket': + // tbc + } + if (false === $fh = fopen($filename, 'rb', $incpath)) { - user_error('file_get_contents() failed to open stream: No such file or directory', + user_error('failed to open stream: No such file or directory', E_USER_WARNING); return false; } @@ -52,11 +87,94 @@ return $data; } +/** + * Performs HTTP requests + * + * @param string $filename + * the full path to request + * @param array $opts + * an array of stream context options + * @return mixed + * either the contents of the requested path (as a string), + * or an array where $array[1] is the path redirected to. + */ +function php_compat_http_get_contents_helper($filename, $opts) +{ + $path = parse_url($filename); + if (!isset($path['host'])) { + return ''; + } + $fp = fsockopen($path['host'], 80, $errno, $errstr, 4); + if (!$fp) { + return ''; + } + if (!isset($path['path'])) { + $path['path'] = '/'; + } + + $headers = array( + 'Host' => $path['host'], + 'Conection' => 'close' + ); + + // enforce some options (proxy isn't supported) + $opts_defaults = array( + 'method' => 'GET', + 'header' => null, + 'user_agent' => ini_get('user_agent'), + 'content' => null, + 'request_fulluri' => false + ); + + foreach ($opts_defaults as $key => $value) { + if (!isset($opts[$key])) { + $opts[$key] = $value; + } + } + $opts['path'] = $opts['request_fulluri'] ? $filename : $path['path']; + + // build request + $request = $opts['method'] . ' ' . $opts['path'] . " HTTP/1.0\r\n"; + + // build headers + if (isset($opts['header'])) { + $optheaders = explode("\r\n", $opts['header']); + for ($i = count($optheaders); $i--;) { + $sep_pos = strpos($optheaders[$i], ': '); + $headers[substr($optheaders[$i], 0, $sep_pos)] = substr($optheaders[$i], $sep_pos + 2); + } + } + foreach ($headers as $key => $value) { + $request .= "$key: $value\r\n"; + } + $request .= "\r\n" . $opts['content']; + + // make request + fputs($fp, $request); + $response = ''; + while (!feof($fp)) { + $response .= fgets($fp, 8192); + } + fclose($fp); + $content_pos = strpos($response, "\r\n\r\n"); + + + // recurse for redirects + if (preg_match('/^Location: (.*)$/mi', $response, $matches)) { + return $matches; + } + return ($content_pos != -1 ? substr($response, $content_pos + 4) : $response); +} + +function php_compat_ftp_get_contents_helper($filename, $opts) +{ +} -// Define if (!function_exists('file_get_contents')) { function file_get_contents($filename, $incpath = false, $resource_context = null) { return php_compat_file_get_contents($filename, $incpath, $resource_context); } } + +?> \ No newline at end of file