<?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) 2010 CĂ©ondo 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 (preg_split("/\015\012|\015|\012/", $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'.$pretty.'">'.IDF_Diff::padLine(Pluf_esc($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 $res;
}
/**
* Find if a given mime type is a text file.
* This uses the output of the self::getMimeType function.
*
* @param array (Mime type, file name, extension)
* @return bool Is text
*/
public static function isText($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], $ext));
}
/*
*
*/
public static function getPictureInline($file)
{
$info = IDF_FileUtil::getMimeType($file);
$content = file_get_contents($file);
$base64 = 'data:' . $info[0] . ';base64,' . base64_encode($content);
return $base64;
}
}