PHP phpthumb_functions::ParseURLbetter方法代碼示例

function RedirectToCachedFile() {
	global $phpThumb, $PHPTHUMB_CONFIG;

	$nice_cachefile = str_replace(DIRECTORY_SEPARATOR, '/', $phpThumb->cache_filename);
	$nice_docroot   = str_replace(DIRECTORY_SEPARATOR, '/', rtrim($PHPTHUMB_CONFIG['document_root'], '/\\'));

	$parsed_url = phpthumb_functions::ParseURLbetter(@$_SERVER['HTTP_REFERER']);

	$nModified  = filemtime($phpThumb->cache_filename);

	if ($phpThumb->config_nooffsitelink_enabled && @$_SERVER['HTTP_REFERER'] && !in_array(@$parsed_url['host'], $phpThumb->config_nooffsitelink_valid_domains)) {

		$phpThumb->DebugMessage('Would have used cached (image/'.$phpThumb->thumbnailFormat.') file "'.$phpThumb->cache_filename.'" (Last-Modified: '.gmdate('D, d M Y H:i:s', $nModified).' GMT), but skipping because $_SERVER[HTTP_REFERER] ('.@$_SERVER['HTTP_REFERER'].') is not in $phpThumb->config_nooffsitelink_valid_domains ('.implode(';', $phpThumb->config_nooffsitelink_valid_domains).')', __FILE__, __LINE__);

	} elseif ($phpThumb->phpThumbDebug) {

		$phpThumb->DebugTimingMessage('skipped using cached image', __FILE__, __LINE__);
		$phpThumb->DebugMessage('Would have used cached file, but skipping due to phpThumbDebug', __FILE__, __LINE__);
		$phpThumb->DebugMessage('* Would have sent headers (1): Last-Modified: '.gmdate('D, d M Y H:i:s', $nModified).' GMT', __FILE__, __LINE__);
		if ($getimagesize = @GetImageSize($phpThumb->cache_filename)) {
			$phpThumb->DebugMessage('* Would have sent headers (2): Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($getimagesize[2]), __FILE__, __LINE__);
		}
		if (preg_match('#^'.preg_quote($nice_docroot).'(.*)$#', $nice_cachefile, $matches)) {
			$phpThumb->DebugMessage('* Would have sent headers (3): Location: '.dirname($matches[1]).'/'.urlencode(basename($matches[1])), __FILE__, __LINE__);
		} else {
			$phpThumb->DebugMessage('* Would have sent data: readfile('.$phpThumb->cache_filename.')', __FILE__, __LINE__);
		}

	} else {

		if (headers_sent()) {
			$phpThumb->ErrorImage('Headers already sent ('.basename(__FILE__).' line '.__LINE__.')');
			exit;
		}
		SendSaveAsFileHeaderIfNeeded();

		header('Last-Modified: '.gmdate('D, d M Y H:i:s', $nModified).' GMT');
		if (@$_SERVER['HTTP_IF_MODIFIED_SINCE'] && ($nModified == strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE'])) && @$_SERVER['SERVER_PROTOCOL']) {
			header($_SERVER['SERVER_PROTOCOL'].' 304 Not Modified');
			exit;
		}

		if ($getimagesize = @GetImageSize($phpThumb->cache_filename)) {
			header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($getimagesize[2]));
		} elseif (preg_match('#\\.ico$#i', $phpThumb->cache_filename)) {
			header('Content-Type: image/x-icon');
		}
		if (!@$PHPTHUMB_CONFIG['cache_force_passthru'] && preg_match('#^'.preg_quote($nice_docroot).'(.*)$#', $nice_cachefile, $matches)) {
			header('Location: '.dirname($matches[1]).'/'.urlencode(basename($matches[1])));
		} else {
			@readfile($phpThumb->cache_filename);
		}
		exit;

	}
	return true;
}

 function SafeURLread($url, &$error, $timeout = 10, $followredirects = true)
 {
     $error = '';
     $parsed_url = phpthumb_functions::ParseURLbetter($url);
     $alreadyLookedAtURLs[trim($url)] = true;
     while (true) {
         $tryagain = false;
         $rawData = phpthumb_functions::URLreadFsock(@$parsed_url['host'], @$parsed_url['path'] . '?' . @$parsed_url['query'], $errstr, true, @$parsed_url['port'] ? @$parsed_url['port'] : 80, $timeout);
         if (eregi('302 [a-z ]+; Location\\: (http.*)', $errstr, $matches)) {
             $matches[1] = trim(@$matches[1]);
             if (!@$alreadyLookedAtURLs[$matches[1]]) {
                 // loop through and examine new URL
                 $error .= 'URL "' . $url . '" redirected to "' . $matches[1] . '"';
                 $tryagain = true;
                 $alreadyLookedAtURLs[$matches[1]] = true;
                 $parsed_url = phpthumb_functions::ParseURLbetter($matches[1]);
             }
         }
         if (!$tryagain) {
             break;
         }
     }
     if ($rawData === false) {
         $error .= 'Error opening "' . $url . '":' . "\n\n" . $errstr;
         return false;
     } elseif ($rawData === null) {
         // fall through
         $error .= 'Error opening "' . $url . '":' . "\n\n" . $errstr;
     } else {
         return $rawData;
     }
     if (function_exists('curl_version') && !phpthumb_functions::FunctionIsDisabled('curl_exec')) {
         $ch = curl_init();
         curl_setopt($ch, CURLOPT_URL, $url);
         curl_setopt($ch, CURLOPT_HEADER, false);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
         $rawData = curl_exec($ch);
         curl_close($ch);
         if (strlen($rawData) > 0) {
             $error .= 'CURL succeeded (' . strlen($rawData) . ' bytes); ';
             return $rawData;
         }
         $error .= 'CURL available but returned no data; ';
     } else {
         $error .= 'CURL unavailable; ';
     }
     $BrokenURLfopenPHPversions = array('4.4.2');
     if (in_array(phpversion(), $BrokenURLfopenPHPversions)) {
         $error .= 'fopen(URL) broken in PHP v' . phpversion() . '; ';
     } elseif (@ini_get('allow_url_fopen')) {
         $rawData = '';
         $error_fopen = '';
         ob_start();
         if ($fp = fopen($url, 'rb')) {
             do {
                 $buffer = fread($fp, 8192);
                 $rawData .= $buffer;
             } while (strlen($buffer) > 0);
             fclose($fp);
         } else {
             $error_fopen .= trim(strip_tags(ob_get_contents()));
         }
         ob_end_clean();
         $error .= $error_fopen;
         if (!$error_fopen) {
             $error .= '; "allow_url_fopen" succeeded (' . strlen($rawData) . ' bytes); ';
             return $rawData;
         }
         $error .= '; "allow_url_fopen" enabled but returned no data (' . $error_fopen . '); ';
     } else {
         $error .= '"allow_url_fopen" disabled; ';
     }
     return false;
 }

 function SetCacheFilename()
 {
     if (!is_null($this->cache_filename)) {
         $this->DebugMessage('$this->cache_filename already set, skipping SetCacheFilename()', __FILE__, __LINE__);
         return true;
     }
     $this->setOutputFormat();
     $this->setCacheDirectory();
     if (!$this->config_cache_directory) {
         $this->DebugMessage('SetCacheFilename() failed because $this->config_cache_directory is empty', __FILE__, __LINE__);
         return false;
     }
     if (!$this->sourceFilename && !$this->rawImageData && $this->src) {
         $this->sourceFilename = $this->ResolveFilenameToAbsolute($this->src);
     }
     if ($this->config_cache_default_only_suffix && $this->sourceFilename) {
         // simplified cache filenames:
         // only use default parameters in phpThumb.config.php
         // substitute source filename into * in $this->config_cache_default_only_suffix
         // (eg: '*_thumb' becomes 'picture_thumb.jpg')
         if (strpos($this->config_cache_default_only_suffix, '*') === false) {
             $this->DebugMessage('aborting simplified caching filename because no * in "' . $this->config_cache_default_only_suffix . '"', __FILE__, __LINE__);
         } else {
             preg_match('#(.+)(\\.[a-z0-9]+)?$#i', basename($this->sourceFilename), $matches);
             $this->cache_filename = $this->config_cache_directory . DIRECTORY_SEPARATOR . rawurlencode(str_replace('*', @$matches[1], $this->config_cache_default_only_suffix)) . '.' . strtolower($this->thumbnailFormat);
             return true;
         }
     }
     $this->cache_filename = '';
     $broad_directory_name = '';
     if ($this->new) {
         $broad_directory_name = strtolower(md5($this->new));
         $this->cache_filename .= '_new' . $broad_directory_name;
     } elseif ($this->md5s) {
         // source image MD5 hash provided
         $this->DebugMessage('SetCacheFilename() _raw set from $this->md5s = "' . $this->md5s . '"', __FILE__, __LINE__);
         $broad_directory_name = $this->md5s;
         $this->cache_filename .= '_raw' . $this->md5s;
     } elseif (!$this->src && $this->rawImageData) {
         $this->DebugMessage('SetCacheFilename() _raw set from md5($this->rawImageData) = "' . md5($this->rawImageData) . '"', __FILE__, __LINE__);
         $broad_directory_name = strtolower(md5($this->rawImageData));
         $this->cache_filename .= '_raw' . $broad_directory_name;
     } else {
         $this->DebugMessage('SetCacheFilename() _src set from md5($this->sourceFilename) "' . $this->sourceFilename . '" = "' . md5($this->sourceFilename) . '"', __FILE__, __LINE__);
         $broad_directory_name = strtolower(md5($this->sourceFilename));
         $this->cache_filename .= '_src' . $broad_directory_name;
     }
     if (@$_SERVER['HTTP_REFERER'] && $this->config_nooffsitelink_enabled) {
         $parsed_url1 = @phpthumb_functions::ParseURLbetter(@$_SERVER['HTTP_REFERER']);
         $parsed_url2 = @phpthumb_functions::ParseURLbetter('http://' . @$_SERVER['HTTP_HOST']);
         if (@$parsed_url1['host'] && @$parsed_url2['host'] && $parsed_url1['host'] != $parsed_url2['host']) {
             // include "_offsite" only if nooffsitelink_enabled and if referrer doesn't match the domain of the current server
             $this->cache_filename .= '_offsite';
         }
     }
     $ParametersString = '';
     if ($this->fltr && is_array($this->fltr)) {
         $ParametersString .= '_fltr' . implode('_fltr', $this->fltr);
     }
     $FilenameParameters1 = array('ar', 'bg', 'bc', 'far', 'sx', 'sy', 'sw', 'sh', 'zc');
     foreach ($FilenameParameters1 as $key) {
         if ($this->{$key}) {
             $ParametersString .= '_' . $key . $this->{$key};
         }
     }
     $FilenameParameters2 = array('h', 'w', 'wl', 'wp', 'ws', 'hp', 'hs', 'xto', 'ra', 'iar', 'aoe', 'maxb', 'sfn', 'dpi');
     foreach ($FilenameParameters2 as $key) {
         if ($this->{$key}) {
             $ParametersString .= '_' . $key . intval($this->{$key});
         }
     }
     if ($this->thumbnailFormat == 'jpeg') {
         // only JPEG output has variable quality option
         $ParametersString .= '_q' . intval($this->thumbnailQuality);
     }
     $this->DebugMessage('SetCacheFilename() _par set from md5(' . $ParametersString . ')', __FILE__, __LINE__);
     $this->cache_filename .= '_par' . strtolower(md5($ParametersString));
     if ($this->md5s) {
         // source image MD5 hash provided
         // do not source image modification date --
         // cached image will be used even if file was modified or removed
     } elseif (!$this->config_cache_source_filemtime_ignore_remote && preg_match('#^(f|ht)tps?\\://#i', $this->src)) {
         $this->cache_filename .= '_dat' . intval(phpthumb_functions::filedate_remote($this->src));
     } elseif (!$this->config_cache_source_filemtime_ignore_local && $this->src && !$this->rawImageData) {
         $this->cache_filename .= '_dat' . intval(@filemtime($this->sourceFilename));
     }
     $this->cache_filename .= '.' . strtolower($this->thumbnailFormat);
     $broad_directories = '';
     for ($i = 0; $i < $this->config_cache_directory_depth; $i++) {
         $broad_directories .= DIRECTORY_SEPARATOR . substr($broad_directory_name, 0, $i + 1);
     }
     $this->cache_filename = $this->config_cache_directory . $broad_directories . DIRECTORY_SEPARATOR . $this->config_cache_prefix . rawurlencode($this->cache_filename);
     return true;
 }