mime.inc.php
5.85 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
<?php
/**
* $Id$
*
* Copyright (c) 2006 Jam Warehouse http://www.jamwarehouse.com
*
* This program 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; using version 2 of the License.
*
* This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* -------------------------------------------------------------------------
*
* You can contact the copyright owner regarding licensing via the contact
* details that can be found on the KnowledgeTree web site:
*
* http://www.ktdms.com/
*/
/**
* This is a temporary location for these functions.
*/
class KTMime {
/**
* Get the mime type primary key for a specific mime type
*
* @param string detected mime type
* @param string filename
* @return int mime type primary key if found, else default mime type primary key (text/plain)
*/
function getMimeTypeID($sMimeType, $sFileName) {
global $default;
$sql = $default->db;
$bOfficeDocument = false;
// application/msword seems to be set by all Office documents
if ($sMimeType == "application/msword") {
$bOfficeDocument = true;
}
if ($bOfficeDocument || (!$sMimeType)) {
// check by file extension
$sExtension = KTMime::stripAllButExtension($sFileName);
$sql->query(array("SELECT id FROM " . $default->mimetypes_table . " WHERE LOWER(filetypes) = ?", $sExtension));/*ok*/
if ($sql->next_record()) {
return $sql->f("id");
}
}
// get the mime type id
if (isset($sMimeType)) {
$sql->query(array("SELECT id FROM " . $default->mimetypes_table . " WHERE mimetypes = ?", $sMimeType));/*ok*/
if ($sql->next_record()) {
return $sql->f("id");
}
}
//otherwise return the default mime type
return KTMime::getDefaultMimeTypeID();
}
/**
* Get the default mime type, which is application/octet-stream
*
* @return int default mime type
*
*/
function getDefaultMimeTypeID() {
global $default;
$sql = $default->db;
$sql->query("SELECT id FROM " . $default->mimetypes_table . " WHERE mimetypes = 'application/octet-stream'");
$sql->next_record();
//get the mime type id
return $sql->f("id");
}
function getMimeTypeName($iMimeTypeID) {
global $default;
$sql = $default->db;
$sql->query(array("SELECT mimetypes FROM " . $default->mimetypes_table . " WHERE id = ?", $iMimeTypeID));/*ok*/
if ($sql->next_record()) {
return $sql->f("mimetypes");
}
return "application/octet-stream";
}
function getFriendlyNameForString($sMimeType) {
global $default;
$sql = $default->db;
$sql->query(array("SELECT friendly_name, filetypes FROM " . $default->mimetypes_table . " WHERE mimetypes = ?", $sMimeType));/*ok*/
if ($sql->next_record()) {
$friendly_name = $sql->f("friendly_name");
if (!empty($friendly_name)) {
return _kt($sql->f("friendly_name"));
} else {
return sprintf(_kt('%s File'), strtoupper($sql->f('filetypes')));
}
}
return _kt('Unknown Type');
}
/**
* Try well-defined methods for getting the MIME type for a file on disk.
* First try PECL's Fileinfo library, then try mime_content_type() builtin.
* If neither are available, returns NULL.
*
* @param string file on disk
* @return string mime time for given filename, or NULL
*/
function getMimeTypeFromFile($sFileName) {
if (extension_loaded('fileinfo')) {
$res = finfo_open(FILEINFO_MIME);
$sType = finfo_file($res, $sFileName);
}
if (!$sType) {
if (file_exists('/usr/bin/file')) {
$aCmd = array('/usr/bin/file', '-bi', $sFileName);
$sCmd = KTUtil::safeShellString($aCmd);
$sPossibleType = @exec($sCmd);
if (preg_match('#^[^/]+/[^/*]+$#', $sPossibleType)) {
$sType = $sPossibleType;
}
}
}
if ($sType) {
return preg_replace('/;.*$/', '', $sType);
}
return null;
}
function getIconPath($iMimeTypeId) {
$cached = KTUtil::arrayGet($GLOBALS['_KT_icon_path_cache'], $iMimeTypeId);
if (!empty($cached)) {
return $cached;
}
$GLOBALS['_KT_icon_path_cache'][$iMimeTypeId] = KTMime::_getIconPath($iMimeTypeId);
return $GLOBALS['_KT_icon_path_cache'][$iMimeTypeId];
}
function _getIconPath($iMimeTypeId) {
$sQuery = 'SELECT icon_path FROM mime_types WHERE id = ?';
$res = DBUtil::getOneResult(array($sQuery, array($iMimeTypeId)));
if ($res['icon_path'] !== null) {
return $res['icon_path'];
} else {
return 'unspecified_type';
}
}
/**
* Strip all but the extension from a file. For instance, input of
* 'foo.tif' would return 'tif'.
*
* @param string filename
* @return string extension for given file, without filename itself
*/
function stripAllButExtension($sFileName) {
return strtolower(substr($sFileName, strrpos($sFileName, ".")+1, strlen($sFileName) - strrpos($sFileName, ".")));
}
}
$_KT_icon_path_cache = array();