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<?php/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- *//*# ***** BEGIN LICENSE BLOCK *****# This file is part of InDefero, an open source project management application.# Copyright (C) 2008-2011 Céondo Ltd and contributors.## InDefero is free software; you can redistribute it and/or modify# it under the terms of the GNU General Public License as published by# the Free Software Foundation; either version 2 of the License, or# (at your option) any later version.## InDefero is distributed in the hope that it will be useful,# but WITHOUT ANY WARRANTY; without even the implied warranty of# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the# GNU General Public License for more details.## You should have received a copy of the GNU General Public License# along with this program; if not, write to the Free Software# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA## ***** END LICENSE BLOCK ***** *//** * File utilities. * */class IDF_FileUtil{ /** * Extension supported by the syntax highlighter. */ public static $supportedExtenstions = array( 'ascx', 'ashx', 'asmx', 'aspx', 'browser', 'bsh', 'c', 'cl', 'cc', 'config', 'cpp', 'cs', 'csh', 'csproj', 'css', 'cv', 'cyc', 'el', 'fs', 'h', 'hh', 'hpp', 'hs', 'html', 'html', 'java', 'js', 'lisp', 'master', 'pas', 'perl', 'php', 'pl', 'pm', 'py', 'rb', 'scm', 'sh', 'sitemap', 'skin', 'sln', 'svc', 'vala', 'vb', 'vbproj', 'vbs', 'wsdl', 'xhtml', 'xml', 'xsd', 'xsl', 'xslt'); /** * Test if an extension is supported by the syntax highlighter. * * @param string The extension to test * @return bool */ public static function isSupportedExtension($extension) { return in_array($extension, self::$supportedExtenstions); } /** * Returns a HTML snippet with a line-by-line pre-rendered table * for the given source content * * @param array file information as returned by getMimeType or getMimeTypeFromContent * @param string the content of the file * @return string */ public static function highLight($fileinfo, $content) { $pretty = ''; if (self::isSupportedExtension($fileinfo[2])) { $pretty = ' prettyprint'; } $table = array(); $i = 1; foreach (self::splitIntoLines($content) as $line) { $table[] = '<tr class="c-line"><td class="code-lc" id="L'.$i.'"><a href="#L'.$i.'">'.$i.'</a></td>' .'<td class="code mono'.$pretty.'">'.self::emphasizeControlCharacters(Pluf_esc($line)).'</td></tr>'; $i++; } return Pluf_Template::markSafe(implode("\n", $table)); } /** * Find the mime type of a file. * * Use /etc/mime.types to find the type. * * @param string Filename/Filepath * @param array Mime type found or 'application/octet-stream', basename, extension */ public static function getMimeType($file) { static $mimes = null; if ($mimes == null) { $mimes = array(); $src = Pluf::f('idf_mimetypes_db', '/etc/mime.types'); $filecontent = @file_get_contents($src); if ($filecontent !== false) { $mimes = preg_split("/\015\012|\015|\012/", $filecontent); } } $info = pathinfo($file); if (isset($info['extension'])) { foreach ($mimes as $mime) { if ('#' != substr($mime, 0, 1)) { $elts = preg_split('/ |\t/', $mime, -1, PREG_SPLIT_NO_EMPTY); if (in_array($info['extension'], $elts)) { return array($elts[0], $info['basename'], $info['extension']); } } } } else { // we consider that if no extension and base name is all // uppercase, then we have a text file. if ($info['basename'] == strtoupper($info['basename'])) { return array('text/plain', $info['basename'], 'txt'); } $info['extension'] = 'bin'; } return array('application/octet-stream', $info['basename'], $info['extension']); } /** * Find the mime type of a file using the fileinfo class. * * @param string Filename/Filepath * @param string File content * @return array Mime type found or 'application/octet-stream', basename, extension */ public static function getMimeTypeFromContent($file, $filedata) { $info = pathinfo($file); $res = array('application/octet-stream', $info['basename'], isset($info['extension']) ? $info['extension'] : 'bin'); if (function_exists('finfo_open')) { $finfo = finfo_open(FILEINFO_MIME); $mime = finfo_buffer($finfo, $filedata); finfo_close($finfo); if ($mime) { $res[0] = $mime; } if (!isset($info['extension']) && $mime) { $res[2] = (0 === strpos($mime, 'text/')) ? 'txt' : 'bin'; } elseif (!isset($info['extension'])) { $res[2] = 'bin'; } } return $res; } /** * Splits a string into separate lines while retaining the individual * line ending character for every line. * * OS9 line endings are not supported. * * @param string content * @param boolean if true, skip completely empty lines * @return string */ public static function splitIntoLines($content, $skipEmpty = false) { $flags = PREG_SPLIT_OFFSET_CAPTURE; if ($skipEmpty) $flags |= PREG_SPLIT_NO_EMPTY; $splitted = preg_split("/\r\n|\n/", $content, -1, $flags); $last_off = -1; $lines = array(); while (($split = array_shift($splitted)) !== null) { if ($last_off != -1) { $lines[] .= substr($content, $last_off, $split[1] - $last_off); } $last_off = $split[1]; } $lines[] = substr($content, $last_off); return $lines; } /** * This translates most of the C0 ASCII control characters into * their visual counterparts in the 0x24## unicode plane * * We could add DEL (0x7F) to this set, but unfortunately this * is not nicely mapped to 0x247F in the control plane, but 0x2421 * and adding an if expression below just for this is a little bit * of a hassle. And of course, the more esoteric ones from C1 are * missing as well... * * @param string $content * @return string */ public static function emphasizeControlCharacters($content) { return preg_replace( '/([\x00-\x1F])/ue', '"<span class=\"ctrl-char\" title=\"0x".bin2hex("\\1")."\">$".bin2hex("\\1")."</span>"', $content); } /** * Find if a given mime type is a text file. * This uses the output of the self::getMimeType function. * * @param array (Mime type, file name, extension) * @return bool Is text */ public static function isText($fileinfo) { if (0 === strpos($fileinfo[0], 'text/')) { return true; } $ext = 'mdtext php-dist h gitignore diff patch'; $extra_ext = trim(Pluf::f('idf_extra_text_ext', '')); if (!empty($extra_ext)) $ext .= ' ' . $extra_ext; $ext = array_merge(self::$supportedExtenstions, explode(' ' , $ext)); return (in_array($fileinfo[2], $ext)); }} |
