source: tags/2.0.2/lib/Upload.inc.php @ 220

Last change on this file since 220 was 220, checked in by quinn, 18 years ago

Q - fixed bug relating to strtotime usage.
File size: 27.0 KB
Line 
1<?php
2/**
3 * Upload.inc.php
4 * Code by Strangecode :: www.strangecode.com :: This document contains copyrighted information
5 *
6 * The Upload class provides an interface to deal with http uploaded files.
7 *
8 * @author  Quinn Comendant <quinn@strangecode.com>
9 * @requires App.inc.php
10 * @version 1.3
11 */
12
13// Message Types.
14define('UPLOAD_MSG_ERR', MSG_ERR);
15define('UPLOAD_MSG_ERROR', MSG_ERROR);
16define('UPLOAD_MSG_WARNING', MSG_WARNING);
17define('UPLOAD_MSG_NOTICE', MSG_NOTICE);
18define('UPLOAD_MSG_SUCCESS', MSG_SUCCESS);
19define('UPLOAD_MSG_ALL', MSG_SUCCESS + MSG_NOTICE + MSG_WARNING + MSG_ERROR);
20
21require_once dirname(__FILE__) . '/App.inc.php';
22
23class Upload {
24
25    // General object parameters.
26    var $_params = array(
27
28        // Which messages do we pass to raiseMsg?
29        'display_messages' => UPLOAD_MSG_ALL,
30
31        // Existing files will be overwritten when there is a name conflict?
32        'allow_overwriting' => false,
33
34        // The filesystem path to the final upload directory.
35        'upload_path' => null,
36
37        // The file permissions of the uploaded files. Remember, files will be owned by the web server user.
38        'dest_file_perms' => 0600,
39
40        // Require file to have one of the following file name extentions.
41        'valid_file_extensions' => array('jpg', 'jpeg', 'gif', 'png', 'pdf', 'txt', 'text', 'html', 'htm'),
42    );
43
44    // Array of files with errors.
45    var $errors = array();
46
47    // Array of file name extensions and corresponding mime-types.
48    var $mime_extension_map = array( 'ez' => 'application/andrew-inset', 'hqx' => 'application/mac-binhex40', 'cpt' => 'application/mac-compactpro', 'doc' => 'application/msword', 'bin' => 'application/octet-stream', 'class' => 'application/octet-stream', 'dll' => 'application/octet-stream', 'dms' => 'application/octet-stream', 'exe' => 'application/octet-stream', 'lha' => 'application/octet-stream', 'lzh' => 'application/octet-stream', 'so' => 'application/octet-stream', 'oda' => 'application/oda', 'pdf' => 'application/pdf', 'ps' => 'application/postscript', 'eps' => 'application/postscript', 'ai' => 'application/postscript', 'smi' => 'application/smil', 'smil' => 'application/smil', 'mif' => 'application/vnd.mif', 'xls' => 'application/vnd.ms-excel', 'ppt' => 'application/vnd.ms-powerpoint', 'stc' => 'application/vnd.sun.xml.calc.template', 'sxc' => 'application/vnd.sun.xml.calc', 'std' => 'application/vnd.sun.xml.draw.template', 'sxd' => 'application/vnd.sun.xml.draw', 'sti' => 'application/vnd.sun.xml.impress.template', 'sxi' => 'application/vnd.sun.xml.impress', 'sxm' => 'application/vnd.sun.xml.math', 'sxg' => 'application/vnd.sun.xml.writer.global', 'stw' => 'application/vnd.sun.xml.writer.template', 'sxw' => 'application/vnd.sun.xml.writer', 'vsd' => 'application/vnd.visio', 'wbxml' => 'application/vnd.wap.wbxml', 'wmlc' => 'application/vnd.wap.wmlc', 'wmlsc' => 'application/vnd.wap.wmlscriptc', 'bcpio' => 'application/x-bcpio', 'vcd' => 'application/x-cdlink', 'pgn' => 'application/x-chess-pgn', 'Z' => 'application/x-compress', 'cpio' => 'application/x-cpio', 'csh' => 'application/x-csh', 'dcr' => 'application/x-director', 'dir' => 'application/x-director', 'dxr' => 'application/x-director', 'dvi' => 'application/x-dvi', 'spl' => 'application/x-futuresplash', 'gtar' => 'application/x-gtar', 'tgz' => 'application/x-gtar', 'gz' => 'application/x-gzip', 'hdf' => 'application/x-hdf', 'php3' => 'application/x-httpd-php3', 'php' => 'application/x-httpd-php', 'js' => 'application/x-javascript', 'skd' => 'application/x-koan', 'skm' => 'application/x-koan', 'skp' => 'application/x-koan', 'skt' => 'application/x-koan', 'latex' => 'application/x-latex', 'wmd' => 'application/x-ms-wmd', 'wmz' => 'application/x-ms-wmz', 'cdf' => 'application/x-netcdf', 'nc' => 'application/x-netcdf', 'pl' => 'application/x-perl', 'pm' => 'application/x-perl', 'shar' => 'application/x-shar', 'swf' => 'application/x-shockwave-flash', 'sh' => 'application/x-sh', 'sit' => 'application/x-stuffit', 'sv4cpio' => 'application/x-sv4cpio', 'sv4crc' => 'application/x-sv4crc', 'tar' => 'application/x-tar', 'tcl' => 'application/x-tcl', 'texi' => 'application/x-texinfo', 'texinfo' => 'application/x-texinfo', 'tex' => 'application/x-tex', 'man' => 'application/x-troff-man', 'me' => 'application/x-troff-me', 'ms' => 'application/x-troff-ms', 'roff' => 'application/x-troff', 't' => 'application/x-troff', 'tr' => 'application/x-troff', 'ustar' => 'application/x-ustar', 'src' => 'application/x-wais-source', 'xhtml' => 'application/xhtml+xml', 'xht' => 'application/xhtml+xml', 'xml' => 'application/xml', 'zip' => 'application/zip', 'au' => 'audio/basic', 'snd' => 'audio/basic', 'kar' => 'audio/midi', 'mid' => 'audio/midi', 'midi' => 'audio/midi', 'mp3' => 'audio/mpeg', 'mp2' => 'audio/mpeg', 'mpga' => 'audio/mpeg', 'aiff' => 'audio/x-aiff', 'aif' => 'audio/x-aiff', 'aifc' => 'audio/x-aiff', 'm3u' => 'audio/x-mpegurl', 'wax' => 'audio/x-ms-wax', 'wma' => 'audio/x-ms-wma', 'rpm' => 'audio/x-pn-realaudio-plugin', 'ram' => 'audio/x-pn-realaudio', 'rm' => 'audio/x-pn-realaudio', 'ra' => 'audio/x-realaudio', 'wav' => 'audio/x-wav', 'pdb' => 'chemical/x-pdb', 'xyz' => 'chemical/x-xyz', 'bmp' => 'image/bmp', 'gif' => 'image/gif', 'ief' => 'image/ief', 'jpg' => 'image/jpeg', 'jpe' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'png' => 'image/png', 'tif' => 'image/tiff', 'tiff' => 'image/tiff', 'wbmp' => 'image/vnd.wap.wbmp', 'ras' => 'image/x-cmu-raster', 'pnm' => 'image/x-portable-anymap', 'pbm' => 'image/x-portable-bitmap', 'pgm' => 'image/x-portable-graymap', 'ppm' => 'image/x-portable-pixmap', 'rgb' => 'image/x-rgb', 'xbm' => 'image/x-xbitmap', 'xpm' => 'image/x-xpixmap', 'xwd' => 'image/x-xwindowdump', 'iges' => 'model/iges', 'igs' => 'model/iges', 'mesh' => 'model/mesh', 'msh' => 'model/mesh', 'silo' => 'model/mesh', 'vrml' => 'model/vrml', 'wrl' => 'model/vrml', 'ics' => 'text/calendar', 'ifb' => 'text/calendar', 'vcs' => 'text/calendar', 'vfb' => 'text/calendar', 'css' => 'text/css', 'diff' => 'text/diff', 'patch' => 'text/diff', 'html' => 'text/html', 'htm' => 'text/html', 'shtml' => 'text/html', 'txt' => 'text/plain', 'asc' => 'text/plain', 'log' => 'text/plain', 'po' => 'text/plain', 'rtx' => 'text/richtext', 'rtf' => 'text/rtf', 'sgm' => 'text/sgml', 'sgml' => 'text/sgml', 'tsv' => 'text/tab-separated-values', 'wmls' => 'text/vnd.wap.wmlscript', 'wml' => 'text/vnd.wap.wml', 'etx' => 'text/x-setext', 'vcf' => 'text/x-vcard', 'xsl' => 'text/xml', 'mpeg' => 'video/mpeg', 'mpe' => 'video/mpeg', 'mpg' => 'video/mpeg', 'mov' => 'video/quicktime', 'qt' => 'video/quicktime', 'mxu' => 'video/vnd.mpegurl', 'asf' => 'video/x-ms-asf', 'asx' => 'video/x-ms-asf', 'wmv' => 'video/x-ms-wmv', 'wm' => 'video/x-ms-wm', 'wmx' => 'video/x-ms-wmx', 'wvx' => 'video/x-ms-wvx', 'avi' => 'video/x-msvideo', 'movie' => 'video/x-sgi-movie', 'ice' => 'x-conference/x-cooltalk', );
49
50    /**
51     * Set (or overwrite existing) parameters by passing an array of new parameters.
52     *
53     * @access public
54     * @param  array    $params     Array of parameters (key => val pairs).
55     */
56    function setParam($params)
57    {
58        if (isset($params) && is_array($params)) {
59
60            // Enforce valid upload_path parameter.
61            if (isset($params['upload_path'])) {
62                // $params['upload_path'] = realpath($params['upload_path']);
63                $params['upload_path'] = $params['upload_path'];
64                // Must be directory.
65                if (!is_dir($params['upload_path'])) {
66                    App::logMsg(sprintf('Upload directory invalid: %s', $params['upload_path']), LOG_ERR, __FILE__, __LINE__);
67                    trigger_error(sprintf('Upload directory invalid: %s', $params['upload_path']), E_USER_ERROR);
68                }
69                // Must be writable.
70                if (!is_writable($params['upload_path'])) {
71                    App::logMsg(sprintf('Upload directory not writable: %s', $params['upload_path']), LOG_ERR, __FILE__, __LINE__);
72                    trigger_error(sprintf('Upload directory not writable: %s', $params['upload_path']), E_USER_ERROR);
73                }
74            }
75
76            // Merge new parameters with old overriding only those passed.
77            $this->_params = array_merge($this->_params, $params);
78        } else {
79            App::logMsg(sprintf('Parameters are not an array: %s', $params), LOG_ERR, __FILE__, __LINE__);
80        }
81    }
82
83    /**
84     * Return the value of a parameter, if it exists.
85     *
86     * @access public
87     * @param string $param        Which parameter to return.
88     * @return mixed               Configured parameter value.
89     */
90    function getParam($param)
91    {
92        if (isset($this->_params[$param])) {
93            return $this->_params[$param];
94        } else {
95            App::logMsg(sprintf('Parameter is not set: %s', $param), LOG_DEBUG, __FILE__, __LINE__);
96            return null;
97        }
98    }
99
100    /**
101     * Process uploaded files. Processes files existing within the specified $_FILES['form_name'] array.
102     * It tests for errors, cleans the filename, optionally sets custom file names. It will process
103     * multiple files automatically if the file form element is an array (<input type="file" name="myfiles[]" />).
104     *
105     * @access  public
106     * @param   string  $form_name          The name of the form to process.
107     * @param   string  $custom_file_name   The new name of the file. An array of filename in the case of multiple files.
108     * @return  mixed   Returns FALSE if a major error occured preventing any file uploads.
109     *                  Returns an empty array if any minor errors occured or no files were found.
110     *                  Returns a multidimentional array of filenames, sizes and extentions, if one-or-more files succeeded uploading.
111     *                  Note: this last option presents a problem in the case of when some files uploaded successfully, and some failed.
112     *                        In this case it is necessary to check the Upload::anyErrors method to discover if any did fail.
113     */
114    function process($form_name, $custom_file_name=null)
115    {
116        // Ensure we have a upload directory.
117        if (!$this->getParam('upload_path')) {
118            App::logMsg(sprintf('Upload directory not set before processing.'), LOG_ERR, __FILE__, __LINE__);
119            $this->raiseMsg(_("There was a problem with the file upload. Please try again later."), MSG_ERR, __FILE__, __LINE__);
120            return false;
121        }
122
123        // Ensure the file form element specified actually exists.
124        if (!isset($_FILES[$form_name])) {
125            App::logMsg(sprintf(_("Form element %s does not exist."), $form_name), LOG_ERR, __FILE__, __LINE__);
126            $this->raiseMsg(_("There was a problem with the file upload. Please try again later."), MSG_ERR, __FILE__, __LINE__);
127            return false;
128        }
129
130        if (is_array($_FILES[$form_name]['name'])) {
131            $files = $_FILES[$form_name];
132        } else {
133            // Convert variables to single-cell array so it will loop.
134            $files = array(
135                'name'      => array($_FILES[$form_name]['name']),
136                'type'      => array($_FILES[$form_name]['type']),
137                'tmp_name'  => array($_FILES[$form_name]['tmp_name']),
138                'error'     => array($_FILES[$form_name]['error']),
139                'size'      => array($_FILES[$form_name]['size']),
140            );
141        }
142
143        // To keep this script running even if user tries to stop browser.
144        ignore_user_abort(true);
145        ini_set('max_execution_time', 300);
146        ini_set('max_input_time', 300);
147
148        $new_file_names = array();
149
150        $num = sizeof($files['name']);
151        for ($i=0; $i<$num; $i++) {
152            $file_path_name = '';
153
154            if ('' == trim($files['name'][$i])) {
155                // User may not have attached a file.
156                continue;
157            }
158
159            // Determine final file name.
160            if ($num == 1) {
161                // Single upload.
162                if (isset($custom_file_name) && '' != $custom_file_name) {
163                    // Valid custom file name.
164                    $file_name = $custom_file_name;
165                    $this->raiseMsg(sprintf(_("The file <strong>%s</strong> has been renamed to <strong>%s</strong>."), $files['name'][$i], $file_name), MSG_NOTICE, __FILE__, __LINE__);
166                    App::logMsg(sprintf('Using custom file name: %s', $file_name), LOG_DEBUG, __FILE__, __LINE__);
167                } else {
168                    // Invalid custom file name provided. Use uploaded file name.
169                    $file_name = $files['name'][$i];
170                    App::logMsg(sprintf('Using uploaded file name: %s', $file_name), LOG_DEBUG, __FILE__, __LINE__);
171                }
172            } else {
173                // Multiple upload. Final file names must be array.
174                if (isset($custom_file_name) && is_array($custom_file_name) && is_array($custom_file_name[$i]) && '' != $custom_file_name[$i]) {
175                    // Valid custom file name.
176                    $file_name = $custom_file_name[$i];
177                    $this->raiseMsg(sprintf(_("The file <strong>%s</strong> has been renamed to <strong>%s</strong>."), $files['name'][$i], $file_name), MSG_NOTICE, __FILE__, __LINE__);
178                    App::logMsg(sprintf('Using custom file name: %s', $file_name), LOG_DEBUG, __FILE__, __LINE__);
179                } else {
180                    // Invalid custom file name provided. Use uploaded file name.
181                    $file_name = $files['name'][$i];
182                    App::logMsg(sprintf('Using uploaded file name: %s', $file_name), LOG_DEBUG, __FILE__, __LINE__);
183                }
184            }
185
186            // Clean the file name of bad characters.
187            $file_name = $this->cleanFileName($file_name);
188
189            // If the file name has no extension, use the mime-type extension.
190            if (!preg_match('/\.[^.]{1,5}$/', $file_name) && function_exists('mime_content_type')) {
191                if ($ext = array_search(mime_content_type($files['tmp_name'][$i]), $this->mime_extension_map)) {
192                    $file_name .= ".$ext";
193                }
194            }
195
196            // Set the path and file name.
197            $file_path_name = $this->getParam('upload_path') . '/' . $file_name;
198
199
200            // Check The php upload error messages.
201            if (UPLOAD_ERR_INI_SIZE === $files['error'][$i]) {
202                if ($this->getParam('display_messages')) {
203                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading: it exceeds the maximum allowed upload file size of %s."), $file_name, ini_get('upload_max_filesize')), MSG_ERR, __FILE__, __LINE__);
204                }
205                App::logMsg(sprintf(_("The file %s failed uploading with PHP error %s UPLOAD_ERR_INI_SIZE (currently %s)."), $files['error'][$i], $file_name, ini_get('upload_max_filesize')), LOG_ERR, __FILE__, __LINE__);
206                $this->errors[] = $file_name;
207                continue;
208            }
209            if (UPLOAD_ERR_FORM_SIZE === $files['error'][$i]) {
210                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading: it exceeds the maximum allowed upload file size of %s."), $file_name, $_POST['MAX_FILE_SIZE']), MSG_ERR, __FILE__, __LINE__);
211                App::logMsg(sprintf(_("The file %s failed uploading with PHP error %s UPLOAD_ERR_FORM_SIZE (currently %s)."), $files['error'][$i], $file_name, $_POST['MAX_FILE_SIZE']), LOG_ERR, __FILE__, __LINE__);
212                $this->errors[] = $file_name;
213                continue;
214            }
215            if (UPLOAD_ERR_PARTIAL === $files['error'][$i]) {
216                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading: it was only partially uploaded."), $file_name), MSG_ERR, __FILE__, __LINE__);
217                App::logMsg(sprintf(_("The file %s failed uploading with PHP error %s UPLOAD_ERR_PARTIAL."), $files['error'][$i], $file_name), LOG_ERR, __FILE__, __LINE__);
218                $this->errors[] = $file_name;
219                continue;
220            }
221            if (UPLOAD_ERR_NO_FILE === $files['error'][$i]) {
222                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading: no file was uploaded."), $file_name), MSG_ERR, __FILE__, __LINE__);
223                App::logMsg(sprintf(_("The file %s failed uploading with PHP error %s UPLOAD_ERR_NO_FILE."), $files['error'][$i], $file_name), LOG_ERR, __FILE__, __LINE__);
224                $this->errors[] = $file_name;
225                continue;
226            }
227            if (UPLOAD_ERR_NO_TMP_DIR === $files['error'][$i]) {
228                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading: temporary upload directory missing."), $file_name), MSG_ERR, __FILE__, __LINE__);
229                App::logMsg(sprintf(_("The file %s failed uploading with PHP error %s UPLOAD_ERR_NO_TMP_DIR."), $files['error'][$i], $file_name), LOG_ERR, __FILE__, __LINE__);
230                $this->errors[] = $file_name;
231                continue;
232            }
233
234            // Check to be sure it's an uploaded file.
235            if (!is_uploaded_file($files['tmp_name'][$i])) {
236                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading."), $file_name), MSG_ERR, __FILE__, __LINE__);
237                App::logMsg(sprintf(_("The file %s failed is_uploaded_file."), $file_name), LOG_ERR, __FILE__, __LINE__);
238                $this->errors[] = $file_name;
239                continue;
240            }
241
242            // Check to be sure the file is not empty.
243            if ($files['size'][$i] < 1) {
244                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading: it contains zero bytes."), $file_name), MSG_ERR, __FILE__, __LINE__);
245                App::logMsg(sprintf(_("The uploaded file %s contains zero bytes."), $file_name), LOG_ERR, __FILE__, __LINE__);
246                $this->errors[] = $file_name;
247                continue;
248            }
249
250            // Check to be sure the file has a valid file name extension.
251            if (!in_array(strtolower($this->getFilenameExtension($file_name)), $this->getParam('valid_file_extensions'))) {
252                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading: it is an unrecognized type. Files must have one of the following file name extensions: %s."), $file_name, join(', ', $this->getParam('valid_file_extensions'))), MSG_ERR, __FILE__, __LINE__);
253                App::logMsg(sprintf(_("The uploaded file %s has an unrecognized file name extension."), $file_name), LOG_WARNING, __FILE__, __LINE__);
254                $this->errors[] = $file_name;
255                continue;
256            }
257
258            // Check to be sure the file has a unique file name.
259            if (!$this->getParam('allow_overwriting') && $this->exists($file_name)) {
260                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading: a file with that name already exists."), $file_name), MSG_ERR, __FILE__, __LINE__);
261                App::logMsg(sprintf(_("The uploaded file %s doesn't have a unique filename."), $file_name), LOG_WARNING, __FILE__, __LINE__);
262                $this->errors[] = $file_name;
263                continue;
264            }
265
266            // Move the file to the final place.
267            if (move_uploaded_file($files['tmp_name'][$i], $file_path_name)) {
268                chmod($file_path_name, $this->getParam('dest_file_perms'));
269                App::logMsg(sprintf('File uploaded: %s', $file_path_name), LOG_INFO, __FILE__, __LINE__);
270                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> uploaded successfully."), $file_name), MSG_SUCCESS, __FILE__, __LINE__);
271                if (!isset($custom_file_name) && $files['name'][$i] != $file_name) {
272                    // Notify user if uploaded file name was modified (unless a custom file name will be used anyways).
273                    $this->raiseMsg(sprintf(_("The file <strong>%s</strong> was renamed to <strong>%s</strong>."), $files['name'][$i], $file_name), MSG_NOTICE, __FILE__, __LINE__);
274                }
275                $new_file_names[] = array(
276                    'name' => $file_name,
277                    'size' => filesize($file_path_name),
278                    'extension' => strtolower(substr($file_name, strrpos($file_name, '.') + 1)),
279                );
280                continue;
281            } else {
282                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> failed uploading."), $file_name), MSG_ERR, __FILE__, __LINE__);
283                App::logMsg(sprintf(_("Moving file failed: %s -> %s"), $files['tmp_name'][$i], $file_path_name), LOG_ALERT, __FILE__, __LINE__);
284                $this->errors[] = $file_name;
285                continue;
286            }
287        }
288
289        // Return names of files uploaded (or empty array when none processed).
290        return $new_file_names;
291    }
292
293    /**
294     * Remove file within upload path.
295     *
296     * @access  public
297     * @param   string  $file_name  A name of a file.
298     * @return  bool                Success of operation.
299     */
300    function deleteFile($file_name)
301    {
302        // Ensure we have a upload directory.
303        if (!$this->getParam('upload_path')) {
304            App::logMsg(sprintf('Upload directory not set before processing.'), LOG_ERR, __FILE__, __LINE__);
305            return false;
306        }
307
308        $file_path_name = $this->getParam('upload_path') . '/' . $file_name;
309
310        if (!is_file($file_path_name)) {
311            App::logMsg(sprintf(_("Error deleting nonexistent file: %s"), $file_path_name), LOG_ERR, __FILE__, __LINE__);
312            return false;
313        } else if (unlink($file_path_name)) {
314            App::logMsg(sprintf('Deleted file: %s', $file_path_name), LOG_INFO, __FILE__, __LINE__);
315        } else {
316            $this->raiseMsg(sprintf(_("The file <strong>%s</strong> could not be deleted."), $file_name), MSG_ERR, __FILE__, __LINE__);
317            App::logMsg(sprintf(_("Failed deleting file: %s"), $file_path_name), LOG_ERR, __FILE__, __LINE__);
318            return false;
319        }
320    }
321
322    /**
323     * Renames a file within the upload path.
324     *
325     * @access  public
326     * @param   string  $old_name   The currently existing file name.
327     * @param   string  $new_name   The new name for this file.
328     * @return  bool                Success of operation.
329     */
330    function moveFile($old_name, $new_name)
331    {
332        // Ensure we have an upload directory.
333        if (!$this->getParam('upload_path')) {
334            App::logMsg(sprintf('Upload directory not set before processing.'), LOG_ERR, __FILE__, __LINE__);
335            return false;
336        }
337
338        $old_file_path_name = $this->getParam('upload_path') . '/' . $old_name;
339        $new_file_path_name = $this->getParam('upload_path') . '/' . $new_name;
340        if (file_exists($old_file_path_name)) {
341            if (rename($old_file_path_name, $new_file_path_name)) {
342                $this->raiseMsg(sprintf(_("The file <strong>%s</strong> has been renamed to <strong>%s</strong>."), basename($old_file_path_name), basename($new_file_path_name)), MSG_NOTICE, __FILE__, __LINE__);
343                App::logMsg(sprintf('File renamed from %s to %s', $old_file_path_name, $new_file_path_name), LOG_DEBUG, __FILE__, __LINE__);
344            } else {
345                $this->raiseMsg(sprintf(_("Error renaming file to %s"), $new_file_path_name), MSG_WARNING, __FILE__, __LINE__);
346                App::logMsg(sprintf(_("Error renaming file to %s"), $new_file_path_name), LOG_WARNING, __FILE__, __LINE__);
347                return false;
348            }
349        } else {
350            $this->raiseMsg(sprintf(_("Couldn't rename nonexistent file <strong>%s</strong>."), $old_name), MSG_WARNING, __FILE__, __LINE__);
351            App::logMsg(sprintf(_("Error renaming nonexistent file: %s"), $old_file_path_name), LOG_WARNING, __FILE__, __LINE__);
352            return false;
353        }
354    }
355
356    /**
357     * Tests if a file exists within the current upload_path.
358     *
359     * @access  public
360     * @param   string  $file_name  A name of a file.
361     * @return  bool                Existence of file.
362     */
363    function exists($file_name)
364    {
365        // Ensure we have a upload directory.
366        if (!$this->getParam('upload_path')) {
367            App::logMsg(sprintf('Upload directory not set before processing.'), LOG_ERR, __FILE__, __LINE__);
368            return false;
369        }
370
371        return file_exists($this->getParam('upload_path') . '/' . $file_name);
372    }
373
374    /**
375     * Get filename by glob pattern. Searches a directory for an image that matches the
376     * specified glob pattern and returns the filename of the first file found.
377     *
378     * @access  public
379     * @param   string  $pattern   Pattern to match filename.
380     * @return  string filename on success, empty string on failure.
381     * @author  Quinn Comendant <quinn@strangecode.com>
382     * @since   15 Nov 2005 20:55:22
383     */
384    function getFilenameGlob($pattern)
385    {
386        $file_list = glob(sprintf('%s/%s', $this->getParam('upload_path'), $pattern));
387        if (isset($file_list[0])) {
388            return basename($file_list[0]);
389        } else {
390            return '';
391        }
392    }
393
394    /**
395     * Returns an array of file names that failed uploading.
396     *
397     * @access  public
398     * @return  array   List of file names.
399     */
400    function getErrors()
401    {
402        return $this->errors;
403    }
404
405    /**
406     * Determintes if any errors occured while calling the Upload::process method.
407     *
408     * @access  public
409     */
410    function anyErrors()
411    {
412        return sizeof($this->errors) > 0;
413    }
414
415    /**
416     * Removes unsafe characters from file name.
417     *
418     * @access  public
419     * @param   string  $file_name  A name of a file.
420     * @return  string              The same name, but cleaned.
421     */
422    function cleanFileName($file_name)
423    {
424        $bad  = 'áéíóúàÚìòùÀëïöÌÁÉÍÓÚÀÈÌÒÙÄËÏÖÜâêîÎûÂÊÎÔÛñçÇ@';
425        $good = 'aeiouaeiouaeiouAEIOUAEIOUAEIOUaeiouAEIOUncCa';
426        $file_name = trim($file_name);
427        $file_name = strtr($file_name, $bad, $good);
428        $file_name = preg_replace('/[^-\w.,~_=+()]/i', '_', $file_name);
429        $file_name = substr($file_name, 0, 250);
430        return $file_name;
431    }
432
433
434    /**
435     * Returns the extention of a file name, or an empty string if non exists.
436     *
437     * @access  public
438     * @param   string  $file_name  A name of a file, with extention after a dot.
439     * @return  string              The value found after the dot
440     */
441    function getFilenameExtension($file_name)
442    {
443        preg_match('/.*?\.(\w+)$/i', trim($file_name), $ext);
444        return isset($ext[1]) ? $ext[1] : '';
445    }
446
447    /**
448     * An alias for App::raiseMsg that only sends messages configured by display_messages.
449     *
450     * @access public
451     *
452     * @param string $message The text description of the message.
453     * @param int    $type    The type of message: MSG_NOTICE,
454     *                        MSG_SUCCESS, MSG_WARNING, or MSG_ERR.
455     * @param string $file    __FILE__.
456     * @param string $line    __LINE__.
457     */
458    function raiseMsg($message, $type, $file, $line)
459    {
460        if ($this->getParam('display_messages') === true || (is_int($this->getParam('display_messages')) && $this->getParam('display_messages') >= $type)) {
461            App::raiseMsg($message, $type, $file, $line);
462        }
463    }
464}
465
466?>
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