| | |
| | | |
| | | /* |
| | | +-----------------------------------------------------------------------+ |
| | | | program/include/rcube_mime.php | |
| | | | | |
| | | | This file is part of the Roundcube Webmail client | |
| | | | Copyright (C) 2005-2012, The Roundcube Dev Team | |
| | | | Copyright (C) 2011-2012, Kolab Systems AG | |
| | |
| | | | | |
| | | | PURPOSE: | |
| | | | MIME message parsing utilities | |
| | | | | |
| | | +-----------------------------------------------------------------------+ |
| | | | Author: Thomas Bruederli <roundcube@gmail.com> | |
| | | | Author: Aleksander Machniak <alec@alec.pl> | |
| | | +-----------------------------------------------------------------------+ |
| | | */ |
| | | |
| | | |
| | | /** |
| | | * Class for parsing MIME messages |
| | |
| | | $q_level = 0; |
| | | |
| | | foreach ($text as $idx => $line) { |
| | | if ($line[0] == '>' && preg_match('/^(>+\s*)/', $line, $regs)) { |
| | | $q = strlen(str_replace(' ', '', $regs[0])); |
| | | $line = substr($line, strlen($regs[0])); |
| | | if ($line[0] == '>') { |
| | | // remove quote chars, store level in $q |
| | | $line = preg_replace('/^>+/', '', $line, -1, $q); |
| | | // remove (optional) space-staffing |
| | | $line = preg_replace('/^ /', '', $line); |
| | | |
| | | if ($q == $q_level && $line |
| | | && isset($text[$last]) |
| | | && $text[$last][strlen($text[$last])-1] == ' ' |
| | | // The same paragraph (We join current line with the previous one) when: |
| | | // - the same level of quoting |
| | | // - previous line was flowed |
| | | // - previous line contains more than only one single space (and quote char(s)) |
| | | if ($q == $q_level |
| | | && isset($text[$last]) && $text[$last][strlen($text[$last])-1] == ' ' |
| | | && !preg_match('/^>+ {0,1}$/', $text[$last]) |
| | | ) { |
| | | $text[$last] .= $line; |
| | | unset($text[$idx]); |
| | |
| | | |
| | | foreach ($text as $idx => $line) { |
| | | if ($line != '-- ') { |
| | | if ($line[0] == '>' && preg_match('/^(>+ {0,1})+/', $line, $regs)) { |
| | | $level = substr_count($regs[0], '>'); |
| | | if ($line[0] == '>') { |
| | | // remove quote chars, store level in $level |
| | | $line = preg_replace('/^>+/', '', $line, -1, $level); |
| | | // remove (optional) space-staffing and spaces before the line end |
| | | $line = preg_replace('/(^ | +$)/', '', $line); |
| | | $prefix = str_repeat('>', $level) . ' '; |
| | | $line = rtrim(substr($line, strlen($regs[0]))); |
| | | $line = $prefix . self::wordwrap($line, $length - $level - 2, " \r\n$prefix", false, $charset); |
| | | } |
| | | else if ($line) { |
| | |
| | | |
| | | |
| | | /** |
| | | * Improved wordwrap function. |
| | | * Improved wordwrap function with multibyte support. |
| | | * The code is based on Zend_Text_MultiByte::wordWrap(). |
| | | * |
| | | * @param string $string Text to wrap |
| | | * @param int $width Line width |
| | | * @param string $break Line separator |
| | | * @param bool $cut Enable to cut word |
| | | * @param string $charset Charset of $string |
| | | * @param string $string Text to wrap |
| | | * @param int $width Line width |
| | | * @param string $break Line separator |
| | | * @param bool $cut Enable to cut word |
| | | * @param string $charset Charset of $string |
| | | * @param bool $wrap_quoted When enabled quoted lines will not be wrapped |
| | | * |
| | | * @return string Text |
| | | */ |
| | | public static function wordwrap($string, $width=75, $break="\n", $cut=false, $charset=null) |
| | | public static function wordwrap($string, $width=75, $break="\n", $cut=false, $charset=null, $wrap_quoted=true) |
| | | { |
| | | if ($charset && function_exists('mb_internal_encoding')) { |
| | | mb_internal_encoding($charset); |
| | | if (!$charset) { |
| | | $charset = RCUBE_CHARSET; |
| | | } |
| | | |
| | | $para = preg_split('/\r?\n/', $string); |
| | | $string = ''; |
| | | // detect available functions |
| | | $strlen_func = function_exists('iconv_strlen') ? 'iconv_strlen' : 'mb_strlen'; |
| | | $strpos_func = function_exists('iconv_strpos') ? 'iconv_strpos' : 'mb_strpos'; |
| | | $strrpos_func = function_exists('iconv_strrpos') ? 'iconv_strrpos' : 'mb_strrpos'; |
| | | $substr_func = function_exists('iconv_substr') ? 'iconv_substr' : 'mb_substr'; |
| | | |
| | | while (count($para)) { |
| | | $line = array_shift($para); |
| | | if ($line[0] == '>') { |
| | | $string .= $line.$break; |
| | | continue; |
| | | } |
| | | // Convert \r\n to \n, this is our line-separator |
| | | $string = str_replace("\r\n", "\n", $string); |
| | | $separator = "\n"; // must be 1 character length |
| | | $result = array(); |
| | | |
| | | $list = explode(' ', $line); |
| | | $len = 0; |
| | | while (count($list)) { |
| | | $line = array_shift($list); |
| | | $l = mb_strlen($line); |
| | | $newlen = $len + $l + ($len ? 1 : 0); |
| | | while (($stringLength = $strlen_func($string, $charset)) > 0) { |
| | | $breakPos = $strpos_func($string, $separator, 0, $charset); |
| | | |
| | | if ($newlen <= $width) { |
| | | $string .= ($len ? ' ' : '').$line; |
| | | $len += (1 + $l); |
| | | // quoted line (do not wrap) |
| | | if ($wrap_quoted && $string[0] == '>') { |
| | | if ($breakPos === $stringLength - 1 || $breakPos === false) { |
| | | $subString = $string; |
| | | $cutLength = null; |
| | | } |
| | | else { |
| | | if ($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; |
| | | $subString = $substr_func($string, 0, $breakPos, $charset); |
| | | $cutLength = $breakPos + 1; |
| | | } |
| | | } |
| | | // next line found and current line is shorter than the limit |
| | | else if ($breakPos !== false && $breakPos < $width) { |
| | | if ($breakPos === $stringLength - 1) { |
| | | $subString = $string; |
| | | $cutLength = null; |
| | | } |
| | | else { |
| | | $subString = $substr_func($string, 0, $breakPos, $charset); |
| | | $cutLength = $breakPos + 1; |
| | | } |
| | | } |
| | | else { |
| | | $subString = $substr_func($string, 0, $width, $charset); |
| | | |
| | | // last line |
| | | if ($subString === $string) { |
| | | $cutLength = null; |
| | | } |
| | | else { |
| | | $nextChar = $substr_func($string, $width, 1, $charset); |
| | | |
| | | if ($nextChar === ' ' || $nextChar === $separator) { |
| | | $afterNextChar = $substr_func($string, $width + 1, 1, $charset); |
| | | |
| | | if ($afterNextChar === false) { |
| | | $subString .= $nextChar; |
| | | } |
| | | |
| | | $cutLength = $strlen_func($subString, $charset) + 1; |
| | | } |
| | | else { |
| | | if ($strrpos_func[0] == 'm') { |
| | | $spacePos = $strrpos_func($subString, ' ', 0, $charset); |
| | | } |
| | | else { |
| | | $spacePos = $strrpos_func($subString, ' ', $charset); |
| | | } |
| | | |
| | | if ($spacePos !== false) { |
| | | $subString = $substr_func($subString, 0, $spacePos, $charset); |
| | | $cutLength = $spacePos + 1; |
| | | } |
| | | else if ($cut === false) { |
| | | $spacePos = $strpos_func($string, ' ', 0, $charset); |
| | | |
| | | if ($spacePos !== false) { |
| | | $subString = $substr_func($string, 0, $spacePos, $charset); |
| | | $cutLength = $spacePos + 1; |
| | | } |
| | | else { |
| | | $subString = $string; |
| | | $cutLength = null; |
| | | } |
| | | } |
| | | else { |
| | | $string .= ($len ? $break : '').$line; |
| | | if (count($list)) { |
| | | $string .= $break; |
| | | } |
| | | $len = 0; |
| | | $subString = $substr_func($subString, 0, $width, $charset); |
| | | $cutLength = $width; |
| | | } |
| | | } |
| | | else { |
| | | $string .= $break.$line; |
| | | $len = $l; |
| | | } |
| | | } |
| | | } |
| | | |
| | | if (count($para)) { |
| | | $string .= $break; |
| | | $result[] = $subString; |
| | | |
| | | if ($cutLength !== null) { |
| | | $string = $substr_func($string, $cutLength, ($stringLength - $cutLength), $charset); |
| | | } |
| | | else { |
| | | break; |
| | | } |
| | | } |
| | | |
| | | if ($charset && function_exists('mb_internal_encoding')) { |
| | | mb_internal_encoding(RCUBE_CHARSET); |
| | | } |
| | | |
| | | return $string; |
| | | return implode($break, $result); |
| | | } |
| | | |
| | | |
| | |
| | | |
| | | // try fileinfo extension if available |
| | | if (!$mime_type && function_exists('finfo_open')) { |
| | | if ($finfo = finfo_open(FILEINFO_MIME, $mime_magic)) { |
| | | // null as a 2nd argument should be the same as no argument |
| | | // this however is not true on all systems/versions |
| | | if ($mime_magic) { |
| | | $finfo = finfo_open(FILEINFO_MIME, $mime_magic); |
| | | } |
| | | else { |
| | | $finfo = finfo_open(FILEINFO_MIME); |
| | | } |
| | | |
| | | if ($finfo) { |
| | | if ($is_stream) |
| | | $mime_type = finfo_buffer($finfo, $path); |
| | | else |
| | |
| | | // load mapping file |
| | | $file_paths = array(); |
| | | |
| | | if ($mime_types = rcube::get_instance()->config->get('mime_types')) |
| | | if ($mime_types = rcube::get_instance()->config->get('mime_types')) { |
| | | $file_paths[] = $mime_types; |
| | | } |
| | | |
| | | // try common locations |
| | | $file_paths[] = '/etc/httpd/mime.types'; |
| | | $file_paths[] = '/etc/httpd2/mime.types'; |
| | | $file_paths[] = '/etc/apache/mime.types'; |
| | | $file_paths[] = '/etc/apache2/mime.types'; |
| | | $file_paths[] = '/usr/local/etc/httpd/conf/mime.types'; |
| | | $file_paths[] = '/usr/local/etc/apache/conf/mime.types'; |
| | | if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') { |
| | | $file_paths[] = 'C:/xampp/apache/conf/mime.types.'; |
| | | } |
| | | else { |
| | | $file_paths[] = '/etc/mime.types'; |
| | | $file_paths[] = '/etc/httpd/mime.types'; |
| | | $file_paths[] = '/etc/httpd2/mime.types'; |
| | | $file_paths[] = '/etc/apache/mime.types'; |
| | | $file_paths[] = '/etc/apache2/mime.types'; |
| | | $file_paths[] = '/usr/local/etc/httpd/conf/mime.types'; |
| | | $file_paths[] = '/usr/local/etc/apache/conf/mime.types'; |
| | | } |
| | | |
| | | foreach ($file_paths as $fp) { |
| | | if (is_readable($fp)) { |
| | | $lines = file($fp, FILE_IGNORE_NEW_LINES); |
| | | $lines = file($fp, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); |
| | | break; |
| | | } |
| | | } |
| | |
| | | |
| | | // fallback to some well-known types most important for daily emails |
| | | if (empty($mime_types)) { |
| | | $mime_extensions = @include(RCUBE_CONFIG_DIR . '/mimetypes.php'); |
| | | $mime_extensions += array('gif' => 'image/gif', 'png' => 'image/png', 'jpg' => 'image/jpg', 'jpeg' => 'image/jpeg', 'tif' => 'image/tiff'); |
| | | $mime_extensions = (array) @include(RCUBE_CONFIG_DIR . '/mimetypes.php'); |
| | | |
| | | foreach ($mime_extensions as $ext => $mime) |
| | | foreach ($mime_extensions as $ext => $mime) { |
| | | $mime_types[$mime][] = $ext; |
| | | } |
| | | } |
| | | |
| | | // Add some known aliases that aren't included by some mime.types (#1488891) |
| | | // the order is important here so standard extensions have higher prio |
| | | $aliases = array( |
| | | 'image/gif' => array('gif'), |
| | | 'image/png' => array('png'), |
| | | 'image/x-png' => array('png'), |
| | | 'image/jpeg' => array('jpg', 'jpeg', 'jpe'), |
| | | 'image/jpg' => array('jpg', 'jpeg', 'jpe'), |
| | | 'image/pjpeg' => array('jpg', 'jpeg', 'jpe'), |
| | | 'image/tiff' => array('tif'), |
| | | 'message/rfc822' => array('eml'), |
| | | 'text/x-mail' => array('eml'), |
| | | ); |
| | | |
| | | foreach ($aliases as $mime => $exts) { |
| | | $mime_types[$mime] = array_unique(array_merge((array) $mime_types[$mime], $exts)); |
| | | |
| | | foreach ($exts as $ext) { |
| | | if (!isset($mime_extensions[$ext])) { |
| | | $mime_extensions[$ext] = $mime; |
| | | } |
| | | } |
| | | } |
| | | |
| | | return $mimetype ? $mime_types[$mimetype] : $mime_extensions; |