| | |
| | | +-----------------------------------------------------------------------+ |
| | | | rcube_shared.inc | |
| | | | | |
| | | | This file is part of the RoundCube PHP suite | |
| | | | Copyright (C) 2005-2007, RoundCube Dev. - Switzerland | |
| | | | This file is part of the Roundcube PHP suite | |
| | | | Copyright (C) 2005-2007, The Roundcube Dev Team | |
| | | | Licensed under the GNU GPL | |
| | | | | |
| | | | CONTENTS: | |
| | |
| | | |
| | | |
| | | /** |
| | | * RoundCube shared functions |
| | | * |
| | | * Roundcube shared functions |
| | | * |
| | | * @package Core |
| | | */ |
| | | |
| | |
| | | */ |
| | | function send_nocacheing_headers() |
| | | { |
| | | global $OUTPUT; |
| | | |
| | | if (headers_sent()) |
| | | return; |
| | | |
| | | header("Expires: ".gmdate("D, d M Y H:i:s")." GMT"); |
| | | header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT"); |
| | | header("Cache-Control: private, must-revalidate, post-check=0, pre-check=0"); |
| | | header("Pragma: no-cache"); |
| | | |
| | | // Request browser to disable DNS prefetching (CVE-2010-0464) |
| | | header("X-DNS-Prefetch-Control: off"); |
| | | |
| | | // We need to set the following headers to make downloads work using IE in HTTPS mode. |
| | | if (rcube_https_check()) { |
| | | header('Pragma: '); |
| | | header('Cache-Control: '); |
| | | if ($OUTPUT->browser->ie && rcube_https_check()) { |
| | | header('Pragma: private'); |
| | | header("Cache-Control: private, must-revalidate"); |
| | | } else { |
| | | header("Cache-Control: private, no-cache, must-revalidate, post-check=0, pre-check=0"); |
| | | header("Pragma: no-cache"); |
| | | } |
| | | } |
| | | |
| | |
| | | |
| | | |
| | | /** |
| | | * Check request for If-Modified-Since and send an according response. |
| | | * This will terminate the current script if headers match the given values |
| | | * |
| | | * @param int Modified date as unix timestamp |
| | | * @param string Etag value for caching |
| | | */ |
| | | function send_modified_header($mdate, $etag=null, $skip_check=false) |
| | | { |
| | | if (headers_sent()) |
| | | return; |
| | | |
| | | $iscached = false; |
| | | $etag = $etag ? "\"$etag\"" : null; |
| | | |
| | | if (!$skip_check) |
| | | { |
| | | if ($_SERVER['HTTP_IF_MODIFIED_SINCE'] && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $mdate) |
| | | $iscached = true; |
| | | |
| | | if ($etag) |
| | | $iscached = ($_SERVER['HTTP_IF_NONE_MATCH'] == $etag); |
| | | } |
| | | |
| | | if ($iscached) |
| | | header("HTTP/1.x 304 Not Modified"); |
| | | else |
| | | header("Last-Modified: ".gmdate("D, d M Y H:i:s", $mdate)." GMT"); |
| | | |
| | | header("Cache-Control: private, must-revalidate, max-age=0"); |
| | | header("Expires: "); |
| | | header("Pragma: "); |
| | | |
| | | if ($etag) |
| | | header("Etag: $etag"); |
| | | |
| | | if ($iscached) |
| | | { |
| | | ob_end_clean(); |
| | | exit; |
| | | } |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Similar function as in_array() but case-insensitive |
| | | * |
| | | * @param mixed Needle value |
| | |
| | | foreach ($haystack as $value) |
| | | if ($needle===mb_strtolower($value)) |
| | | return true; |
| | | |
| | | |
| | | return false; |
| | | } |
| | | |
| | |
| | | function get_boolean($str) |
| | | { |
| | | $str = strtolower($str); |
| | | if (in_array($str, array('false', '0', 'no', 'nein', ''), TRUE)) |
| | | if (in_array($str, array('false', '0', 'no', 'off', 'nein', ''), TRUE)) |
| | | return FALSE; |
| | | else |
| | | return TRUE; |
| | |
| | | { |
| | | if (is_numeric($str)) |
| | | return floatval($str); |
| | | |
| | | if (preg_match('/([0-9]+)([a-z])/i', $str, $regs)) |
| | | |
| | | if (preg_match('/([0-9\.]+)\s*([a-z]*)/i', $str, $regs)) |
| | | { |
| | | $bytes = floatval($regs[1]); |
| | | switch (strtolower($regs[2])) |
| | | { |
| | | case 'g': |
| | | case 'gb': |
| | | $bytes *= 1073741824; |
| | | break; |
| | | case 'm': |
| | | case 'mb': |
| | | $bytes *= 1048576; |
| | | break; |
| | | case 'k': |
| | | case 'kb': |
| | | $bytes *= 1024; |
| | | break; |
| | | } |
| | |
| | | |
| | | return floatval($bytes); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Create a human readable string for a number of bytes |
| | | * |
| | |
| | | */ |
| | | function show_bytes($bytes) |
| | | { |
| | | if ($bytes > 1073741824) |
| | | if ($bytes >= 1073741824) |
| | | { |
| | | $gb = $bytes/1073741824; |
| | | $str = sprintf($gb>=10 ? "%d " : "%.1f ", $gb) . rcube_label('GB'); |
| | | } |
| | | else if ($bytes > 1048576) |
| | | else if ($bytes >= 1048576) |
| | | { |
| | | $mb = $bytes/1048576; |
| | | $str = sprintf($mb>=10 ? "%d " : "%.1f ", $mb) . rcube_label('MB'); |
| | | } |
| | | else if ($bytes > 1024) |
| | | else if ($bytes >= 1024) |
| | | $str = sprintf("%d ", round($bytes/1024)) . rcube_label('KB'); |
| | | else |
| | | $str = sprintf('%d ', $bytes) . rcube_label('B'); |
| | | |
| | | return $str; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Convert paths like ../xxx to an absolute path using a base url |
| | |
| | | { |
| | | $host_url = $base_url; |
| | | $abs_path = $path; |
| | | |
| | | |
| | | // check if path is an absolute URL |
| | | if (preg_match('/^[fhtps]+:\/\//', $path)) |
| | | return $path; |
| | |
| | | // cut base_url to the last directory |
| | | if (strrpos($base_url, '/')>7) |
| | | { |
| | | $host_url = substr($base_url, 0, strpos($base_url, '/')); |
| | | $host_url = substr($base_url, 0, strpos($base_url, '/', 7)); |
| | | $base_url = substr($base_url, 0, strrpos($base_url, '/')); |
| | | } |
| | | |
| | | // $path is absolute |
| | | if ($path{0}=='/') |
| | | if ($path[0] == '/') |
| | | $abs_path = $host_url.$path; |
| | | else |
| | | { |
| | |
| | | { |
| | | if (strrpos($base_url, '/')) |
| | | $base_url = substr($base_url, 0, strrpos($base_url, '/')); |
| | | |
| | | |
| | | $path = substr($path, 3); |
| | | } |
| | | |
| | | $abs_path = $base_url.'/'.$path; |
| | | } |
| | | |
| | | |
| | | return $abs_path; |
| | | } |
| | | |
| | |
| | | $para = explode($break, $string); |
| | | $string = ''; |
| | | while (count($para)) { |
| | | $list = explode(' ', array_shift($para)); |
| | | $line = array_shift($para); |
| | | if ($line[0] == '>') { |
| | | $string .= $line.$break; |
| | | continue; |
| | | } |
| | | $list = explode(' ', $line); |
| | | $len = 0; |
| | | while (count($list)) { |
| | | $line = array_shift($list); |
| | |
| | | $string .= ($len ? ' ' : '').$line; |
| | | $len += (1 + $l); |
| | | } else { |
| | | if ($l > $width) { |
| | | if ($cut) { |
| | | $start = 0; |
| | | while ($l) { |
| | | $str = mb_substr($line, $start, $width); |
| | | $strlen = mb_strlen($str); |
| | | $string .= ($len ? $break : '').$str; |
| | | $start += $strlen; |
| | | $l -= $strlen; |
| | | $len = $strlen; |
| | | } |
| | | } else { |
| | | $string .= ($len ? $break : '').$line; |
| | | if (count($list)) $string .= $break; |
| | | $len = 0; |
| | | } |
| | | } else { |
| | | if ($l > $width) { |
| | | if ($cut) { |
| | | $start = 0; |
| | | while ($l) { |
| | | $str = mb_substr($line, $start, $width); |
| | | $strlen = mb_strlen($str); |
| | | $string .= ($len ? $break : '').$str; |
| | | $start += $strlen; |
| | | $l -= $strlen; |
| | | $len = $strlen; |
| | | } |
| | | } else { |
| | | $string .= ($len ? $break : '').$line; |
| | | if (count($list)) $string .= $break; |
| | | $len = 0; |
| | | } |
| | | } else { |
| | | $string .= $break.$line; |
| | | $len = $l; |
| | | $len = $l; |
| | | } |
| | | } |
| | | } |
| | |
| | | } |
| | | |
| | | return $hdrs[$key]; |
| | | } |
| | | } |
| | | |
| | | |
| | | /** |
| | |
| | | { |
| | | return preg_replace('/\/$/', '', $str); |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * Delete all files within a folder |
| | |
| | | * @return int Unix timestamp |
| | | */ |
| | | function get_offset_time($offset_str, $factor=1) |
| | | { |
| | | { |
| | | if (preg_match('/^([0-9]+)\s*([smhdw])/i', $offset_str, $regs)) |
| | | { |
| | | $amount = (int)$regs[1]; |
| | |
| | | $amount = (int)$offset_str; |
| | | $unit = 's'; |
| | | } |
| | | |
| | | |
| | | $ts = mktime(); |
| | | switch ($unit) |
| | | { |
| | |
| | | |
| | | |
| | | /** |
| | | * Replace the middle part of a string with ... |
| | | * if it is longer than the allowed length |
| | | * Truncate string if it is longer than the allowed length |
| | | * Replace the middle or the ending part of a string with a placeholder |
| | | * |
| | | * @param string Input string |
| | | * @param int Max. length |
| | | * @param string Replace removed chars with this |
| | | * @param bool Set to True if string should be truncated from the end |
| | | * @return string Abbreviated string |
| | | */ |
| | | function abbreviate_string($str, $maxlength, $place_holder='...') |
| | | function abbreviate_string($str, $maxlength, $place_holder='...', $ending=false) |
| | | { |
| | | $length = mb_strlen($str); |
| | | $first_part_length = floor($maxlength/2) - mb_strlen($place_holder); |
| | | |
| | | |
| | | if ($length > $maxlength) |
| | | { |
| | | $second_starting_location = $length - $maxlength + $first_part_length + 1; |
| | | $str = mb_substr($str, 0, $first_part_length) . $place_holder . mb_substr($str, $second_starting_location, $length); |
| | | if ($ending) |
| | | return mb_substr($str, 0, $maxlength) . $place_holder; |
| | | |
| | | $place_holder_length = mb_strlen($place_holder); |
| | | $first_part_length = floor(($maxlength - $place_holder_length)/2); |
| | | $second_starting_location = $length - $maxlength + $first_part_length + $place_holder_length; |
| | | $str = mb_substr($str, 0, $first_part_length) . $place_holder . mb_substr($str, $second_starting_location); |
| | | } |
| | | |
| | | return $str; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * A method to guess the mime_type of an attachment. |
| | | * |
| | | * @param string $path Path to the file. |
| | | * @param string $name File name (with suffix) |
| | | * @param string $failover Mime type supplied for failover. |
| | | * @param string $path Path to the file. |
| | | * @param string $name File name (with suffix) |
| | | * @param string $failover Mime type supplied for failover. |
| | | * @param string $is_stream Set to True if $path contains file body |
| | | * |
| | | * @return string |
| | | * @author Till Klampaeckel <till@php.net> |
| | | * @see http://de2.php.net/manual/en/ref.fileinfo.php |
| | | * @see http://de2.php.net/mime_content_type |
| | | */ |
| | | function rc_mime_content_type($path, $name, $failover = 'application/octet-stream') |
| | | function rc_mime_content_type($path, $name, $failover = 'application/octet-stream', $is_stream=false) |
| | | { |
| | | $mime_type = null; |
| | | $mime_magic = rcmail::get_instance()->config->get('mime_magic'); |
| | |
| | | $mime_type = $mime_ext[$suffix]; |
| | | } |
| | | // try fileinfo extension if available |
| | | if (!$mime_type) { |
| | | if (!extension_loaded('fileinfo')) { |
| | | @dl('fileinfo.' . PHP_SHLIB_SUFFIX); |
| | | } |
| | | if (function_exists('finfo_open')) { |
| | | if ($finfo = finfo_open(FILEINFO_MIME, $mime_magic)) { |
| | | if (!$mime_type && function_exists('finfo_open')) { |
| | | if ($finfo = finfo_open(FILEINFO_MIME, $mime_magic)) { |
| | | if ($is_stream) |
| | | $mime_type = finfo_buffer($finfo, $path); |
| | | else |
| | | $mime_type = finfo_file($finfo, $path); |
| | | finfo_close($finfo); |
| | | } |
| | | finfo_close($finfo); |
| | | } |
| | | } |
| | | // try PHP's mime_content_type |
| | | if (!$mime_type && function_exists('mime_content_type')) { |
| | | $mime_type = mime_content_type($path); |
| | | if (!$mime_type && !$is_stream && function_exists('mime_content_type')) { |
| | | $mime_type = @mime_content_type($path); |
| | | } |
| | | // fall back to user-submitted string |
| | | if (!$mime_type) { |
| | | $mime_type = $failover; |
| | | } |
| | | else { |
| | | // Sometimes (PHP-5.3?) content-type contains charset definition, |
| | | // Remove it (#1487122) also "charset=binary" is useless |
| | | $mime_type = array_shift(preg_split('/[; ]/', $mime_type)); |
| | | } |
| | | |
| | | return $mime_type; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Detect image type of the given binary data by checking magic numbers |
| | | * |
| | | * @param string Binary file content |
| | | * @return string Detected mime-type or jpeg as fallback |
| | | */ |
| | | function rc_image_content_type($data) |
| | | { |
| | | $type = 'jpeg'; |
| | | if (preg_match('/^\x89\x50\x4E\x47/', $data)) $type = 'png'; |
| | | else if (preg_match('/^\x47\x49\x46\x38/', $data)) $type = 'gif'; |
| | | else if (preg_match('/^\x00\x00\x01\x00/', $data)) $type = 'ico'; |
| | | // else if (preg_match('/^\xFF\xD8\xFF\xE0/', $data)) $type = 'jpeg'; |
| | | |
| | | return 'image/' . $type; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * A method to guess encoding of a string. |
| | |
| | | $input[$idx] = rc_utf8_clean($val); |
| | | return $input; |
| | | } |
| | | |
| | | |
| | | if (!is_string($input) || $input == '') |
| | | return $input; |
| | | |
| | | // iconv/mbstring are much faster (especially with long strings) |
| | | if (function_exists('mb_convert_encoding') && ($res = mb_convert_encoding($input, 'UTF8', 'UTF8')) !== false) |
| | | if (function_exists('mb_convert_encoding') && ($res = mb_convert_encoding($input, 'UTF-8', 'UTF-8')) !== false) |
| | | return $res; |
| | | |
| | | if (function_exists('iconv') && ($res = iconv('UTF8', 'UTF8//IGNORE', $input)) !== false) |
| | | if (function_exists('iconv') && ($res = @iconv('UTF-8', 'UTF-8//IGNORE', $input)) !== false) |
| | | return $res; |
| | | |
| | | $regexp = '/^('. |
| | |
| | | '|[\xF1-\xF3][\x80-\xBF][\x80-\xBF][\x80-\xBF]'.// UTF8-4 |
| | | '|\xF4[\x80-\x8F][\x80-\xBF][\x80-\xBF]'. // UTF8-4 |
| | | ')$/'; |
| | | |
| | | |
| | | $seq = ''; |
| | | $out = ''; |
| | | |
| | | for ($i = 0, $len = strlen($input)-1; $i < $len; $i++) { |
| | | for ($i = 0, $len = strlen($input); $i < $len; $i++) { |
| | | $chr = $input[$i]; |
| | | $ord = ord($chr); |
| | | // 1-byte character |
| | |
| | | { |
| | | $input = rc_utf8_clean($input); |
| | | |
| | | return json_encode($input); |
| | | // sometimes even using rc_utf8_clean() the input contains invalid UTF-8 sequences |
| | | // that's why we have @ here |
| | | return @json_encode($input); |
| | | } |
| | | |
| | | |
| | |
| | | $p = $i + 1; |
| | | } |
| | | } |
| | | |
| | | |
| | | $result[] = substr($string, $p); |
| | | return $result; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Get all keys from array (recursive) |
| | | * |
| | | * @param array Input array |
| | | * @return array |
| | | */ |
| | | function array_keys_recursive($array) |
| | | { |
| | | $keys = array(); |
| | | |
| | | if (!empty($array)) |
| | | foreach ($array as $key => $child) { |
| | | $keys[] = $key; |
| | | foreach (array_keys_recursive($child) as $val) |
| | | $keys[] = $val; |
| | | } |
| | | return $keys; |
| | | } |
| | | |
| | | |
| | |
| | | } |
| | | } |
| | | |
| | | ?> |
| | | /** |
| | | * intl replacement functions |
| | | */ |
| | | |
| | | if (!function_exists('idn_to_utf8')) |
| | | { |
| | | function idn_to_utf8($domain, $flags=null) |
| | | { |
| | | static $idn, $loaded; |
| | | |
| | | if (!$loaded) { |
| | | $idn = new Net_IDNA2(); |
| | | $loaded = true; |
| | | } |
| | | |
| | | if ($idn && $domain && preg_match('/(^|\.)xn--/i', $domain)) { |
| | | try { |
| | | $domain = $idn->decode($domain); |
| | | } |
| | | catch (Exception $e) { |
| | | } |
| | | } |
| | | return $domain; |
| | | } |
| | | } |
| | | |
| | | if (!function_exists('idn_to_ascii')) |
| | | { |
| | | function idn_to_ascii($domain, $flags=null) |
| | | { |
| | | static $idn, $loaded; |
| | | |
| | | if (!$loaded) { |
| | | $idn = new Net_IDNA2(); |
| | | $loaded = true; |
| | | } |
| | | |
| | | if ($idn && $domain && preg_match('/[^\x20-\x7E]/', $domain)) { |
| | | try { |
| | | $domain = $idn->encode($domain); |
| | | } |
| | | catch (Exception $e) { |
| | | } |
| | | } |
| | | return $domain; |
| | | } |
| | | } |
| | | |