| // | Bertrand Mansion | // +----------------------------------------------------------------------+ // // $Id$ require_once("HTML/QuickForm/input.php"); // register file-related rules if (class_exists('HTML_QuickForm')) { HTML_QuickForm::registerRule('uploadedfile', 'callback', '_ruleIsUploadedFile', 'HTML_QuickForm_file'); HTML_QuickForm::registerRule('maxfilesize', 'callback', '_ruleCheckMaxFileSize', 'HTML_QuickForm_file'); HTML_QuickForm::registerRule('mimetype', 'callback', '_ruleCheckMimeType', 'HTML_QuickForm_file'); HTML_QuickForm::registerRule('filename', 'callback', '_ruleCheckFileName', 'HTML_QuickForm_file'); } /** * HTML class for a file type element * * @author Adam Daniel * @author Bertrand Mansion * @version 1.0 * @since PHP4.04pl1 * @access public */ class HTML_QuickForm_file extends HTML_QuickForm_input { // {{{ properties /** * Uploaded file data, from $_FILES * @var array */ var $_value = null; // }}} // {{{ constructor /** * Class constructor * * @param string Input field name attribute * @param string Input field label * @param mixed (optional)Either a typical HTML attribute string * or an associative array * @since 1.0 * @access public */ function HTML_QuickForm_file($elementName=null, $elementLabel=null, $attributes=null) { HTML_QuickForm_input::HTML_QuickForm_input($elementName, $elementLabel, $attributes); $this->setType('file'); } //end constructor // }}} // {{{ setSize() /** * Sets size of file element * * @param int Size of file element * @since 1.0 * @access public */ function setSize($size) { $this->updateAttributes(array('size' => $size)); } //end func setSize // }}} // {{{ getSize() /** * Returns size of file element * * @since 1.0 * @access public * @return int */ function getSize() { return $this->getAttribute('size'); } //end func getSize // }}} // {{{ freeze() /** * Freeze the element so that only its value is returned * * @access public * @return bool */ function freeze() { return false; } //end func freeze // }}} // {{{ setValue() /** * Sets value for file element. * * Actually this does nothing. The function is defined here to override * HTML_Quickform_input's behaviour of setting the 'value' attribute. As * no sane user-agent uses 's value for anything * (because of security implications) we implement file's value as a * read-only property with a special meaning. * * @param mixed Value for file element * @since 3.0 * @access public */ function setValue($value) { return null; } //end func setValue // }}} // {{{ getValue() /** * Returns information about the uploaded file * * @since 3.0 * @access public * @return array */ function getValue() { return $this->_value; } // end func getValue // }}} // {{{ onQuickFormEvent() /** * Called by HTML_QuickForm whenever form event is made on this element * * @param string Name of event * @param mixed event arguments * @param object calling object * @since 1.0 * @access public * @return bool */ function onQuickFormEvent($event, $arg, &$caller) { switch ($event) { case 'updateValue': if ($caller->getAttribute('method') == 'get') { return PEAR::raiseError('Cannot add a file upload field to a GET method form'); } $this->_value = $this->_findValue(); $caller->updateAttributes(array('enctype' => 'multipart/form-data')); $caller->setMaxFileSize(); break; case 'addElement': $this->onQuickFormEvent('createElement', $arg, $caller); return $this->onQuickFormEvent('updateValue', null, $caller); break; case 'createElement': $className = get_class($this); $this->$className($arg[0], $arg[1], $arg[2]); break; } return true; } // end func onQuickFormEvent // }}} // {{{ moveUploadedFile() /** * Moves an uploaded file into the destination * * @param string Destination directory path * @param string New file name * @access public * @return bool Whether the file was moved successfully */ function moveUploadedFile($dest, $fileName = '') { if ($dest != '' && substr($dest, -1) != '/') { $dest .= '/'; } $fileName = ($fileName != '') ? $fileName : basename($this->_value['name']); return move_uploaded_file($this->_value['tmp_name'], $dest . $fileName); } // end func moveUploadedFile // }}} // {{{ isUploadedFile() /** * Checks if the element contains an uploaded file * * @access public * @return bool true if file has been uploaded, false otherwise */ function isUploadedFile() { return $this->_ruleIsUploadedFile($this->_value); } // end func isUploadedFile // }}} // {{{ _ruleIsUploadedFile() /** * Checks if the given element contains an uploaded file * * @param array Uploaded file info (from $_FILES) * @access private * @return bool true if file has been uploaded, false otherwise */ function _ruleIsUploadedFile($elementValue) { if ((isset($elementValue['error']) && $elementValue['error'] == 0) || (!empty($elementValue['tmp_name']) && $elementValue['tmp_name'] != 'none')) { return is_uploaded_file($elementValue['tmp_name']); } else { return false; } } // end func _ruleIsUploadedFile // }}} // {{{ _ruleCheckMaxFileSize() /** * Checks that the file does not exceed the max file size * * @param array Uploaded file info (from $_FILES) * @param int Max file size * @access private * @return bool true if filesize is lower than maxsize, false otherwise */ function _ruleCheckMaxFileSize($elementValue, $maxSize) { if (!empty($elementValue['error']) && (UPLOAD_ERR_FORM_SIZE == $elementValue['error'] || UPLOAD_ERR_INI_SIZE == $elementValue['error'])) { return false; } if (!HTML_QuickForm_file::_ruleIsUploadedFile($elementValue)) { return true; } return ($maxSize >= @filesize($elementValue['tmp_name'])); } // end func _ruleCheckMaxFileSize // }}} // {{{ _ruleCheckMimeType() /** * Checks if the given element contains an uploaded file of the right mime type * * @param array Uploaded file info (from $_FILES) * @param mixed Mime Type (can be an array of allowed types) * @access private * @return bool true if mimetype is correct, false otherwise */ function _ruleCheckMimeType($elementValue, $mimeType) { if (!HTML_QuickForm_file::_ruleIsUploadedFile($elementValue)) { return true; } if (is_array($mimeType)) { return in_array($elementValue['type'], $mimeType); } return $elementValue['type'] == $mimeType; } // end func _ruleCheckMimeType // }}} // {{{ _ruleCheckFileName() /** * Checks if the given element contains an uploaded file of the filename regex * * @param array Uploaded file info (from $_FILES) * @param string Regular expression * @access private * @return bool true if name matches regex, false otherwise */ function _ruleCheckFileName($elementValue, $regex) { if (!HTML_QuickForm_file::_ruleIsUploadedFile($elementValue)) { return true; } return preg_match($regex, $elementValue['name']); } // end func _ruleCheckFileName // }}} // {{{ _findValue() /** * Tries to find the element value from the values array * * Needs to be redefined here as $_FILES is populated differently from * other arrays when element name is of the form foo[bar] * * @access private * @return mixed */ function _findValue() { if (empty($_FILES)) { return null; } $elementName = $this->getName(); if (isset($_FILES[$elementName])) { return $_FILES[$elementName]; } elseif (false !== ($pos = strpos($elementName, '['))) { $base = str_replace( array('\\', '\''), array('\\\\', '\\\''), substr($elementName, 0, $pos) ); $idx = "['" . str_replace( array('\\', '\'', ']', '['), array('\\\\', '\\\'', '', "']['"), substr($elementName, $pos + 1, -1) ) . "']"; $props = array('name', 'type', 'size', 'tmp_name', 'error'); $code = "if (!isset(\$_FILES['{$base}']['name']{$idx})) {\n" . " return null;\n" . "} else {\n" . " \$value = array();\n"; foreach ($props as $prop) { $code .= " \$value['{$prop}'] = \$_FILES['{$base}']['{$prop}']{$idx};\n"; } return eval($code . " return \$value;\n}\n"); } else { return null; } } // }}} } // end class HTML_QuickForm_file ?>