314 lines
8.5 KiB
PHP
314 lines
8.5 KiB
PHP
<?php
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/**
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*
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* JavaScript Photo/Image Uploader
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*
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* Uses Valum 'qq' Uploader.
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* Module Author: Chris Case
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*
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* Prior to enabling, ensure that you have a directory 'uploads'
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* which is writable by the web server.
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*
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*/
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function js_upload_install() {
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register_hook('photo_upload_form', 'addon/js_upload/js_upload.php', 'js_upload_form');
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register_hook('photo_post_init', 'addon/js_upload/js_upload.php', 'js_upload_post_init');
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register_hook('photo_post_file', 'addon/js_upload/js_upload.php', 'js_upload_post_file');
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register_hook('photo_post_end', 'addon/js_upload/js_upload.php', 'js_upload_post_end');
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}
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function js_upload_uninstall() {
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unregister_hook('photo_upload_form', 'addon/js_upload/js_upload.php', 'js_upload_form');
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unregister_hook('photo_post_init', 'addon/js_upload/js_upload.php', 'js_upload_post_init');
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unregister_hook('photo_post_file', 'addon/js_upload/js_upload.php', 'js_upload_post_file');
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unregister_hook('photo_post_end', 'addon/js_upload/js_upload.php', 'js_upload_post_end');
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}
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function js_upload_form(&$a,&$b) {
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$b['default_upload'] = false;
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$b['addon_text'] .= '<link href="' . $a->get_baseurl() . '/addon/js_upload/file-uploader/client/fileuploader.css" rel="stylesheet" type="text/css">';
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$b['addon_text'] .= '<script src="' . $a->get_baseurl() . '/addon/js_upload/file-uploader/client/fileuploader.js" type="text/javascript"></script>';
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$b['addon_text'] .= <<< EOT
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<div id="file-uploader-demo1">
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<noscript>
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<p>Please enable JavaScript to use file uploader.</p>
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<!-- or put a simple form for upload here -->
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</noscript>
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</div>
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<script type="text/javascript">
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var uploader = null;
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function getSelected(opt) {
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var selected = new Array();
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var index = 0;
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for (var intLoop = 0; intLoop < opt.length; intLoop++) {
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if ((opt[intLoop].selected) ||
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(opt[intLoop].checked)) {
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index = selected.length;
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//selected[index] = new Object;
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selected[index] = opt[intLoop].value;
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//selected[index] = intLoop;
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}
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}
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return selected;
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}
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function createUploader() {
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uploader = new qq.FileUploader({
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element: document.getElementById('file-uploader-demo1'),
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action: '{$b['post_url']}',
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debug: true,
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onSubmit: function(id,filename) {
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uploader.setParams( {
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newalbum : document.getElementById('photos-upload-newalbum').value,
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album : document.getElementById('photos-upload-album-select').value,
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group_allow : getSelected(document.getElementById('group_allow')).join(','),
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contact_allow : getSelected(document.getElementById('contact_allow')).join(','),
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group_deny : getSelected(document.getElementById('group_deny')).join(','),
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contact_deny : getSelected(document.getElementById('contact_deny')).join(',')
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});
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}
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});
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}
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// in your app create uploader as soon as the DOM is ready
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// don't wait for the window to load
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window.onload = createUploader;
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</script>
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EOT;
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}
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function js_upload_post_init(&$a,&$b) {
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// list of valid extensions, ex. array("jpeg", "xml", "bmp")
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$allowedExtensions = array("jpeg","gif","png","jpg");
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// max file size in bytes
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$sizeLimit = 6 * 1024 * 1024;
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$uploader = new qqFileUploader($allowedExtensions, $sizeLimit);
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$result = $uploader->handleUpload();
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// to pass data through iframe you will need to encode all html tags
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$a->data['upload_jsonresponse'] = htmlspecialchars(json_encode($result), ENT_NOQUOTES);
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if(isset($result['error'])) {
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logger('mod/photos.php: photos_post(): error uploading photo: ' . $result['error'] , 'LOGGER_DEBUG');
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killme();
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}
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$a->data['upload_result'] = $result;
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}
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function js_upload_post_file(&$a,&$b) {
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$result = $a->data['upload_result'];
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$b['src'] = $result['path'];
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$b['filename'] = $result['filename'];
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$b['filesize'] = filesize($b['src']);
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}
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function js_upload_post_end(&$a,&$b) {
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logger('upload_post_end');
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if(x($a->data,'upload_jsonresponse')) {
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echo $a->data['upload_jsonresponse'];
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killme();
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}
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}
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/**
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* Handle file uploads via XMLHttpRequest
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*/
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class qqUploadedFileXhr {
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private $pathnm = '';
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/**
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* Save the file in the temp dir.
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* @return boolean TRUE on success
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*/
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function save() {
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$input = fopen("php://input", "r");
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$this->pathnm = tempnam(sys_get_temp_dir(),'frn');
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$temp = fopen($this->pathnm,"w");
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$realSize = stream_copy_to_stream($input, $temp);
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fclose($input);
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fclose($temp);
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if ($realSize != $this->getSize()){
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return false;
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}
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return true;
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}
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function getPath() {
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return $this->pathnm;
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}
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function getName() {
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return $_GET['qqfile'];
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}
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function getSize() {
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if (isset($_SERVER["CONTENT_LENGTH"])){
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return (int)$_SERVER["CONTENT_LENGTH"];
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} else {
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throw new Exception('Getting content length is not supported.');
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}
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}
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}
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/**
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* Handle file uploads via regular form post (uses the $_FILES array)
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*/
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class qqUploadedFileForm {
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/**
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* Save the file to the specified path
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* @return boolean TRUE on success
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*/
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function save() {
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return true;
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}
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function getPath() {
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return $_FILES['qqfile']['tmp_name'];
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}
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function getName() {
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return $_FILES['qqfile']['name'];
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}
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function getSize() {
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return $_FILES['qqfile']['size'];
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}
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}
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class qqFileUploader {
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private $allowedExtensions = array();
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private $sizeLimit = 10485760;
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private $file;
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function __construct(array $allowedExtensions = array(), $sizeLimit = 10485760){
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$allowedExtensions = array_map("strtolower", $allowedExtensions);
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$this->allowedExtensions = $allowedExtensions;
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$this->sizeLimit = $sizeLimit;
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$this->checkServerSettings();
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if (isset($_GET['qqfile'])) {
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$this->file = new qqUploadedFileXhr();
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} elseif (isset($_FILES['qqfile'])) {
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$this->file = new qqUploadedFileForm();
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} else {
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$this->file = false;
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}
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}
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private function checkServerSettings(){
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$postSize = $this->toBytes(ini_get('post_max_size'));
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$uploadSize = $this->toBytes(ini_get('upload_max_filesize'));
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logger('mod/photos.php: qqFileUploader(): upload_max_filesize=' . $uploadSize , 'LOGGER_DEBUG');
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if ($postSize < $this->sizeLimit || $uploadSize < $this->sizeLimit){
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$size = max(1, $this->sizeLimit / 1024 / 1024) . 'M';
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die("{'error':'increase post_max_size and upload_max_filesize to $size'}");
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}
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}
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private function toBytes($str){
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$val = trim($str);
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$last = strtolower($str[strlen($str)-1]);
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switch($last) {
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case 'g': $val *= 1024;
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case 'm': $val *= 1024;
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case 'k': $val *= 1024;
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}
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return $val;
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}
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/**
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* Returns array('success'=>true) or array('error'=>'error message')
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*/
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function handleUpload(){
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if (!$this->file){
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return array('error' => t('No files were uploaded.'));
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}
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$size = $this->file->getSize();
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if ($size == 0) {
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return array('error' => t('Uploaded file is empty'));
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}
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if ($size > $this->sizeLimit) {
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return array('error' => t('Uploaded file is too large'));
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}
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$maximagesize = get_config('system','maximagesize');
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if(($maximagesize) && ($size > $maximagesize)) {
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return array('error' => t('Image exceeds size limit of ') . $maximagesize );
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}
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$pathinfo = pathinfo($this->file->getName());
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$filename = $pathinfo['filename'];
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$ext = $pathinfo['extension'];
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if($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)){
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$these = implode(', ', $this->allowedExtensions);
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return array('error' => t('File has an invalid extension, it should be one of ') . $these . '.');
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}
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if ($this->file->save()){
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return array(
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'success'=>true,
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'path' => $this->file->getPath(),
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'filename' => $filename . '.' . $ext
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);
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} else {
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return array(
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'error'=> t('Upload was cancelled, or server error encountered'),
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'path' => $this->file->getPath(),
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'filename' => $filename . '.' . $ext
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);
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}
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}
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}
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