. ** ** itjs.class - functions to handle javascript inclusion */ class itjs { /** * Send HTTP headers (content-type) to transmit javascript code */ function send_headers($charset = 'iso-8859-1') { if (!preg_match('/Opera/', $_SERVER['HTTP_USER_AGENT']) && !$_REQUEST['itjs_iframe']) # text/plain breaks Opera 8.51/Linux and IFrame fallback header("Content-Type: text/plain; charset=$charset"); # Berni reported some Firewalls to require this header('Expires: ' . gmdate('D, d M Y H:i:s', time()+10) . ' GMT'); # prevent broken data on IE reloads } /** * Serialize the result into a javascript script * @param $values Array with values to be serialized * @param $envelope Encapsulate the data when callback function is provided (iframe solution) * @return String with javascript code to be sent to client */ function serialize($values, $envelope = false) { if (($envelope || isset($values['eof'])) && ($callback = it::replace(array('[^\w.]' => ""), $_REQUEST['itjs_call']))) { $target = $_REQUEST['itjs_iframe'] ? "parent" : "window"; $header = "$target.it_loader && $target.$callback && $target.$callback.dataReady("; $footer = "," . intval($_REQUEST['itjs_callid']) . ");"; if ($_REQUEST['itjs_iframe']) # iframe-based loading required by Opera 7 { $header = '"; } } $result = $header . itjs::encode($values) . $footer; return it_untaint($result); } /* * Encode the result into a javascript array to transfer and eval() in client */ function encode($values) { $texts = ($values === array_values($values)) ? "[]0 " : "{}1\n"; # Numerical or associative array static $jskeyword = array("abstract" => 1, "boolean" => 1, "break" => 1, "byte" => 1, "case" => 1, "catch" => 1, "char" => 1, "class" => 1, "const" => 1, "continue" => 1, "debugger" => 1, "default" => 1, "delete" => 1, "do" => 1, "double" => 1, "each" => 1, "else" => 1, "enum" => 1, "export" => 1, "extends" => 1, "false" => 1, "final" => 1, "finally" => 1, "float" => 1, "for" => 1, "function" => 1, "goto" => 1, "if" => 1, "implements" => 1, "import" => 1, "in" => 1, "instanceof" => 1, "int" => 1, "interface" => 1, "long" => 1, "namespace" => 1, "native" => 1, "new" => 1, "null" => 1, "package" => 1, "private" => 1, "protected" => 1, "public" => 1, "return" => 1, "short" => 1, "static" => 1, "super" => 1, "switch" => 1, "synchronized" => 1, "this" => 1, "throw" => 1, "throws" => 1, "transient" => 1, "true" => 1, "try" => 1, "typeof" => 1, "var" => 1, "void" => 1, "volatile" => 1, "while" => 1, "with" => 1, "xml" => 1); $result = $texts{0}; foreach ($values as $key => $value) { $result .= $separator; if ($texts{2}) { if ($jskeyword[$key] || !preg_match('/^[a-z_]\w*$/i', $key)) $key = "'$key'"; $result .= "$key:"; } if ($value === true) $result .= 'true'; else if ($value === false) $result .= 'false'; else if (!is_array($value)) { $value = strval($value); $quote = (strval(intval($value)) === $value) ? "" : '"'; $string = strtr($value, array("\0" => '\\0', '"' => '\\"', ""<\\/", "\n" => '\\n', "\r" => '\\r', "\t" => '\\t', "\\" => '\\\\')); $string = $GLOBALS['itjs_defaultconfig']['latin2unicode'] ? preg_replace('/([\xa0-\xff])/e', 'sprintf("\\u%04x", ord("\\1"))', $string) : $string; $result .= $quote . $string . $quote; } else $result .= itjs::encode($value); $separator = "," . $texts{3}; } $result .= $texts{1}; return $result; } function filenames($filelist) { $result = array(); $path = $GLOBALS['ULTRAHOME'] . "/itjs"; $itjs = "/www/server/phpinclude/itools/itjs"; $searchlib = "/www/lib.search.ch/doc"; $special = array( "itools" => "$itjs/it.js,$itjs/loader.js,$itjs/state.js,$itjs/timer.js", "boot.js" => "$itjs/boot.js", "state.html" => "$itjs/state.html", "error.gif" => "$itjs/error.gif", "search.css" => "$searchlib/search.css", "prettyprint.css" => "$searchlib/prettyprint.css", ); foreach (array_filter(explode(",", it::replace(array('\?.*' => ""), $filelist))) as $file) { $filenames = $special[$file] ? $special[$file] : "$path/$file"; foreach (explode(",", $filenames) as $filename) $result[] = $filename; } return $result; } /** * Strip comments and trim lines * @param $code String containing javascript code to be stripped * @return Naked code */ function strip($code) { if (!preg_match("/^devel/", $GLOBALS['ULTRASERVERTYPE'])) $code = preg_replace(array( '|\s//.*$|m', '|\s+/\*.*?\*/|s', # MUST require at least one space before "/*" (jquery.js) but MUST NOT require space before "*/" (searchmap.js) '|^\s+|m' ), array(), $code); return $code; } /** * Compute checksum for list of files * @param $files Array of filenames to calculate checksum for * @return Checksum for given files */ function checksum($files = array()) { $itjs = "/www/server/phpinclude/itools/itjs"; $itools_itjs = glob("$itjs/*.{js,css,php}", GLOB_BRACE); $service_itjs = glob($GLOBALS['ULTRAHOME'] . "/itjs/*.{js,css,php}", GLOB_BRACE); foreach (array_merge($files, $service_itjs, $itools_itjs, array("$itjs/itjs.php", "$itjs/itjs.class")) as $file) { if (!preg_match("/^devel/", $GLOBALS['ULTRASERVERTYPE'])) $result += @filesize($file); else $result = md5($result . @file_get_contents($file)); } return $result; } } ?>