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https://github.com/phpbb/phpbb.git
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[ticket/13904] Add fileupload class to files classes
PHPBB3-13904
This commit is contained in:
Marc Alexander
parent
92e49cd0ac
commit
d2be8e1503
1 changed files with 655 additions and 0 deletions
655
phpBB/phpbb/files/upload.php
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655
phpBB/phpbb/files/upload.php
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<?php
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/**
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*
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* This file is part of the phpBB Forum Software package.
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*
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* @copyright (c) phpBB Limited <https://www.phpbb.com>
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* @license GNU General Public License, version 2 (GPL-2.0)
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*
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* For full copyright and license information, please see
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* the docs/CREDITS.txt file.
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*
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*/
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namespace phpbb\files;
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/**
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* File upload class
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* Init class (all parameters optional and able to be set/overwritten separately) - scope is global and valid for all uploads
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*/
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class upload
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{
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var $allowed_extensions = array();
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var $disallowed_content = array('body', 'head', 'html', 'img', 'plaintext', 'a href', 'pre', 'script', 'table', 'title');
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var $max_filesize = 0;
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var $min_width = 0;
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var $min_height = 0;
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var $max_width = 0;
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var $max_height = 0;
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var $error_prefix = '';
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/** @var int Timeout for remote upload */
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var $upload_timeout = 6;
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/**
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* @var \phpbb\filesystem\filesystem_interface
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*/
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protected $filesystem;
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/**
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* Init file upload class.
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*
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* @param \phpbb\filesystem\filesystem_interface $filesystem
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* @param string $error_prefix Used error messages will get prefixed by this string
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* @param array $allowed_extensions Array of allowed extensions, for example array('jpg', 'jpeg', 'gif', 'png')
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* @param int $max_filesize Maximum filesize
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* @param int $min_width Minimum image width (only checked for images)
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* @param int $min_height Minimum image height (only checked for images)
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* @param int $max_width Maximum image width (only checked for images)
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* @param int $max_height Maximum image height (only checked for images)
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* @param bool|array $disallowed_content If enabled, the first 256 bytes of the file must not
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* contain any of its values. Defaults to false.
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*
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*/
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function fileupload(\phpbb\filesystem\filesystem_interface $filesystem, $error_prefix = '', $allowed_extensions = false, $max_filesize = false, $min_width = false, $min_height = false, $max_width = false, $max_height = false, $disallowed_content = false)
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{
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$this->set_allowed_extensions($allowed_extensions);
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$this->set_max_filesize($max_filesize);
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$this->set_allowed_dimensions($min_width, $min_height, $max_width, $max_height);
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$this->set_error_prefix($error_prefix);
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$this->set_disallowed_content($disallowed_content);
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$this->filesystem = $filesystem;
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}
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/**
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* Reset vars
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*/
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function reset_vars()
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{
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$this->max_filesize = 0;
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$this->min_width = $this->min_height = $this->max_width = $this->max_height = 0;
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$this->error_prefix = '';
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$this->allowed_extensions = array();
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$this->disallowed_content = array();
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}
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/**
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* Set allowed extensions
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*/
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function set_allowed_extensions($allowed_extensions)
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{
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if ($allowed_extensions !== false && is_array($allowed_extensions))
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{
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$this->allowed_extensions = $allowed_extensions;
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}
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}
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/**
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* Set allowed dimensions
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*/
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function set_allowed_dimensions($min_width, $min_height, $max_width, $max_height)
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{
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$this->min_width = (int) $min_width;
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$this->min_height = (int) $min_height;
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$this->max_width = (int) $max_width;
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$this->max_height = (int) $max_height;
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}
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/**
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* Set maximum allowed filesize
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*/
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function set_max_filesize($max_filesize)
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{
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if ($max_filesize !== false && (int) $max_filesize)
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{
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$this->max_filesize = (int) $max_filesize;
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}
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}
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/**
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* Set disallowed strings
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*/
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function set_disallowed_content($disallowed_content)
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{
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if ($disallowed_content !== false && is_array($disallowed_content))
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{
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$this->disallowed_content = array_diff($disallowed_content, array(''));
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}
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}
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/**
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* Set error prefix
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*/
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function set_error_prefix($error_prefix)
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{
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$this->error_prefix = $error_prefix;
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}
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/**
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* Form upload method
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* Upload file from users harddisk
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*
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* @param string $form_name Form name assigned to the file input field (if it is an array, the key has to be specified)
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* @param \phpbb\mimetype\guesser $mimetype_guesser Mimetype guesser
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* @param \phpbb\plupload\plupload $plupload The plupload object
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*
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* @return object $file Object "filespec" is returned, all further operations can be done with this object
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* @access public
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*/
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function form_upload($form_name, \phpbb\mimetype\guesser $mimetype_guesser = null, \phpbb\plupload\plupload $plupload = null)
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{
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global $user, $request, $phpbb_container;
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$upload = $request->file($form_name);
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unset($upload['local_mode']);
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if ($plupload)
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{
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$result = $plupload->handle_upload($form_name);
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if (is_array($result))
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{
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$upload = array_merge($upload, $result);
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}
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}
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/** @var \phpbb\files\filespec $file */
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$file = $phpbb_container->get('files.filespec')
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->set_upload_ary($upload)
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->set_upload_namespace($this);
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if ($file->init_error())
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{
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$file->error[] = '';
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return $file;
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}
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// Error array filled?
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if (isset($upload['error']))
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{
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$error = $this->assign_internal_error($upload['error']);
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if ($error !== false)
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{
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$file->error[] = $error;
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return $file;
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}
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}
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// Check if empty file got uploaded (not catched by is_uploaded_file)
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if (isset($upload['size']) && $upload['size'] == 0)
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{
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$file->error[] = $user->lang[$this->error_prefix . 'EMPTY_FILEUPLOAD'];
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return $file;
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}
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// PHP Upload filesize exceeded
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if ($file->get('filename') == 'none')
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{
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$max_filesize = @ini_get('upload_max_filesize');
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$unit = 'MB';
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if (!empty($max_filesize))
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{
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$unit = strtolower(substr($max_filesize, -1, 1));
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$max_filesize = (int) $max_filesize;
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$unit = ($unit == 'k') ? 'KB' : (($unit == 'g') ? 'GB' : 'MB');
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}
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$file->error[] = (empty($max_filesize)) ? $user->lang[$this->error_prefix . 'PHP_SIZE_NA'] : sprintf($user->lang[$this->error_prefix . 'PHP_SIZE_OVERRUN'], $max_filesize, $user->lang[$unit]);
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return $file;
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}
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// Not correctly uploaded
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if (!$file->is_uploaded())
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{
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$file->error[] = $user->lang[$this->error_prefix . 'NOT_UPLOADED'];
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return $file;
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}
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$this->common_checks($file);
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return $file;
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}
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/**
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* Move file from another location to phpBB
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*/
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function local_upload($source_file, $filedata = false, \phpbb\mimetype\guesser $mimetype_guesser = null)
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{
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global $user, $request, $phpbb_container;
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$upload = array();
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$upload['local_mode'] = true;
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$upload['tmp_name'] = $source_file;
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if ($filedata === false)
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{
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$upload['name'] = utf8_basename($source_file);
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$upload['size'] = 0;
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}
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else
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{
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$upload['name'] = $filedata['realname'];
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$upload['size'] = $filedata['size'];
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$upload['type'] = $filedata['type'];
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}
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/** @var \phpbb\files\filespec $file */
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$file = $phpbb_container->get('files.filespec')
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->set_upload_ary($upload)
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->set_upload_namespace($this);
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if ($file->init_error())
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{
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$file->error[] = '';
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return $file;
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}
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if (isset($upload['error']))
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{
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$error = $this->assign_internal_error($upload['error']);
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if ($error !== false)
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{
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$file->error[] = $error;
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return $file;
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}
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}
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// PHP Upload filesize exceeded
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if ($file->get('filename') == 'none')
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{
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$max_filesize = @ini_get('upload_max_filesize');
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$unit = 'MB';
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if (!empty($max_filesize))
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{
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$unit = strtolower(substr($max_filesize, -1, 1));
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$max_filesize = (int) $max_filesize;
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$unit = ($unit == 'k') ? 'KB' : (($unit == 'g') ? 'GB' : 'MB');
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}
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$file->error[] = (empty($max_filesize)) ? $user->lang[$this->error_prefix . 'PHP_SIZE_NA'] : sprintf($user->lang[$this->error_prefix . 'PHP_SIZE_OVERRUN'], $max_filesize, $user->lang[$unit]);
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return $file;
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}
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// Not correctly uploaded
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if (!$file->is_uploaded())
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{
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$file->error[] = $user->lang[$this->error_prefix . 'NOT_UPLOADED'];
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return $file;
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}
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$this->common_checks($file);
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$request->overwrite('local', $upload, \phpbb\request\request_interface::FILES);
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return $file;
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}
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/**
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* Remote upload method
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* Uploads file from given url
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*
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* @param string $upload_url URL pointing to file to upload, for example http://www.foobar.com/example.gif
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* @param \phpbb\mimetype\guesser $mimetype_guesser Mimetype guesser
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* @return object $file Object "filespec" is returned, all further operations can be done with this object
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* @access public
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*/
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function remote_upload($upload_url, \phpbb\mimetype\guesser $mimetype_guesser = null)
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{
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global $user, $phpbb_root_path, $phpbb_container;
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$upload_ary = array();
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$upload_ary['local_mode'] = true;
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if (!preg_match('#^(https?://).*?\.(' . implode('|', $this->allowed_extensions) . ')$#i', $upload_url, $match))
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{
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$file = new fileerror($user->lang[$this->error_prefix . 'URL_INVALID']);
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return $file;
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}
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if (empty($match[2]))
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{
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$file = new fileerror($user->lang[$this->error_prefix . 'URL_INVALID']);
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return $file;
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}
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$url = parse_url($upload_url);
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$host = $url['host'];
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$path = $url['path'];
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$port = (!empty($url['port'])) ? (int) $url['port'] : 80;
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$upload_ary['type'] = 'application/octet-stream';
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$url['path'] = explode('.', $url['path']);
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$ext = array_pop($url['path']);
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$url['path'] = implode('', $url['path']);
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$upload_ary['name'] = utf8_basename($url['path']) . (($ext) ? '.' . $ext : '');
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$filename = $url['path'];
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$filesize = 0;
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$remote_max_filesize = $this->max_filesize;
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if (!$remote_max_filesize)
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{
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$max_filesize = @ini_get('upload_max_filesize');
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if (!empty($max_filesize))
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{
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$unit = strtolower(substr($max_filesize, -1, 1));
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$remote_max_filesize = (int) $max_filesize;
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switch ($unit)
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{
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case 'g':
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$remote_max_filesize *= 1024;
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// no break
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case 'm':
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$remote_max_filesize *= 1024;
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// no break
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case 'k':
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$remote_max_filesize *= 1024;
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// no break
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}
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}
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}
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$errno = 0;
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$errstr = '';
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if (!($fsock = @fsockopen($host, $port, $errno, $errstr)))
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{
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$file = new fileerror($user->lang[$this->error_prefix . 'NOT_UPLOADED']);
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return $file;
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}
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// Make sure $path not beginning with /
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if (strpos($path, '/') === 0)
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{
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$path = substr($path, 1);
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}
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fputs($fsock, 'GET /' . $path . " HTTP/1.1\r\n");
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fputs($fsock, "HOST: " . $host . "\r\n");
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fputs($fsock, "Connection: close\r\n\r\n");
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// Set a proper timeout for the socket
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socket_set_timeout($fsock, $this->upload_timeout);
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$get_info = false;
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$data = '';
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$length = false;
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$timer_stop = time() + $this->upload_timeout;
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while ((!$length || $filesize < $length) && !@feof($fsock))
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{
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if ($get_info)
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{
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if ($length)
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{
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// Don't attempt to read past end of file if server indicated length
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$block = @fread($fsock, min($length - $filesize, 1024));
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}
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else
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{
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$block = @fread($fsock, 1024);
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}
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$filesize += strlen($block);
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if ($remote_max_filesize && $filesize > $remote_max_filesize)
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{
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$max_filesize = get_formatted_filesize($remote_max_filesize, false);
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$file = new fileerror(sprintf($user->lang[$this->error_prefix . 'WRONG_FILESIZE'], $max_filesize['value'], $max_filesize['unit']));
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return $file;
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}
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$data .= $block;
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}
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else
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{
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$line = @fgets($fsock, 1024);
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if ($line == "\r\n")
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{
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$get_info = true;
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}
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else
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{
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if (stripos($line, 'content-type: ') !== false)
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{
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$upload_ary['type'] = rtrim(str_replace('content-type: ', '', strtolower($line)));
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}
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else if ($this->max_filesize && stripos($line, 'content-length: ') !== false)
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{
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$length = (int) str_replace('content-length: ', '', strtolower($line));
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if ($remote_max_filesize && $length && $length > $remote_max_filesize)
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{
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$max_filesize = get_formatted_filesize($remote_max_filesize, false);
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$file = new fileerror(sprintf($user->lang[$this->error_prefix . 'WRONG_FILESIZE'], $max_filesize['value'], $max_filesize['unit']));
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return $file;
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}
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}
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else if (stripos($line, '404 not found') !== false)
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{
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$file = new fileerror($user->lang[$this->error_prefix . 'URL_NOT_FOUND']);
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return $file;
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}
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}
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}
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$stream_meta_data = stream_get_meta_data($fsock);
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// Cancel upload if we exceed timeout
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if (!empty($stream_meta_data['timed_out']) || time() >= $timer_stop)
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{
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$file = new fileerror($user->lang[$this->error_prefix . 'REMOTE_UPLOAD_TIMEOUT']);
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return $file;
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}
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}
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@fclose($fsock);
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if (empty($data))
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{
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$file = new fileerror($user->lang[$this->error_prefix . 'EMPTY_REMOTE_DATA']);
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return $file;
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}
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$tmp_path = (!@ini_get('safe_mode') || strtolower(@ini_get('safe_mode')) == 'off') ? false : $phpbb_root_path . 'cache';
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$filename = tempnam($tmp_path, unique_id() . '-');
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if (!($fp = @fopen($filename, 'wb')))
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{
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$file = new fileerror($user->lang[$this->error_prefix . 'NOT_UPLOADED']);
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return $file;
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}
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$upload_ary['size'] = fwrite($fp, $data);
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fclose($fp);
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unset($data);
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$upload_ary['tmp_name'] = $filename;
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/** @var \phpbb\files\filespec $file */
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$file = $phpbb_container->get('files.filespec')
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->set_upload_ary($upload_ary)
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->set_upload_namespace($this);
|
||||
$this->common_checks($file);
|
||||
|
||||
return $file;
|
||||
}
|
||||
|
||||
/**
|
||||
* Assign internal error
|
||||
* @access private
|
||||
*/
|
||||
function assign_internal_error($errorcode)
|
||||
{
|
||||
global $user;
|
||||
|
||||
switch ($errorcode)
|
||||
{
|
||||
case 1:
|
||||
$max_filesize = @ini_get('upload_max_filesize');
|
||||
$unit = 'MB';
|
||||
|
||||
if (!empty($max_filesize))
|
||||
{
|
||||
$unit = strtolower(substr($max_filesize, -1, 1));
|
||||
$max_filesize = (int) $max_filesize;
|
||||
|
||||
$unit = ($unit == 'k') ? 'KB' : (($unit == 'g') ? 'GB' : 'MB');
|
||||
}
|
||||
|
||||
$error = (empty($max_filesize)) ? $user->lang[$this->error_prefix . 'PHP_SIZE_NA'] : sprintf($user->lang[$this->error_prefix . 'PHP_SIZE_OVERRUN'], $max_filesize, $user->lang[$unit]);
|
||||
break;
|
||||
|
||||
case 2:
|
||||
$max_filesize = get_formatted_filesize($this->max_filesize, false);
|
||||
|
||||
$error = sprintf($user->lang[$this->error_prefix . 'WRONG_FILESIZE'], $max_filesize['value'], $max_filesize['unit']);
|
||||
break;
|
||||
|
||||
case 3:
|
||||
$error = $user->lang[$this->error_prefix . 'PARTIAL_UPLOAD'];
|
||||
break;
|
||||
|
||||
case 4:
|
||||
$error = $user->lang[$this->error_prefix . 'NOT_UPLOADED'];
|
||||
break;
|
||||
|
||||
case 6:
|
||||
$error = 'Temporary folder could not be found. Please check your PHP installation.';
|
||||
break;
|
||||
|
||||
default:
|
||||
$error = false;
|
||||
break;
|
||||
}
|
||||
|
||||
return $error;
|
||||
}
|
||||
|
||||
/**
|
||||
* Perform common checks
|
||||
*/
|
||||
function common_checks(&$file)
|
||||
{
|
||||
global $user;
|
||||
|
||||
// Filesize is too big or it's 0 if it was larger than the maxsize in the upload form
|
||||
if ($this->max_filesize && ($file->get('filesize') > $this->max_filesize || $file->get('filesize') == 0))
|
||||
{
|
||||
$max_filesize = get_formatted_filesize($this->max_filesize, false);
|
||||
|
||||
$file->error[] = sprintf($user->lang[$this->error_prefix . 'WRONG_FILESIZE'], $max_filesize['value'], $max_filesize['unit']);
|
||||
}
|
||||
|
||||
// check Filename
|
||||
if (preg_match("#[\\/:*?\"<>|]#i", $file->get('realname')))
|
||||
{
|
||||
$file->error[] = sprintf($user->lang[$this->error_prefix . 'INVALID_FILENAME'], $file->get('realname'));
|
||||
}
|
||||
|
||||
// Invalid Extension
|
||||
if (!$this->valid_extension($file))
|
||||
{
|
||||
$file->error[] = sprintf($user->lang[$this->error_prefix . 'DISALLOWED_EXTENSION'], $file->get('extension'));
|
||||
}
|
||||
|
||||
// MIME Sniffing
|
||||
if (!$this->valid_content($file))
|
||||
{
|
||||
$file->error[] = sprintf($user->lang[$this->error_prefix . 'DISALLOWED_CONTENT']);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Check for allowed extension
|
||||
*/
|
||||
function valid_extension(&$file)
|
||||
{
|
||||
return (in_array($file->get('extension'), $this->allowed_extensions)) ? true : false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check for allowed dimension
|
||||
*/
|
||||
function valid_dimensions(&$file)
|
||||
{
|
||||
if (!$this->max_width && !$this->max_height && !$this->min_width && !$this->min_height)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
if (($file->get('width') > $this->max_width && $this->max_width) ||
|
||||
($file->get('height') > $this->max_height && $this->max_height) ||
|
||||
($file->get('width') < $this->min_width && $this->min_width) ||
|
||||
($file->get('height') < $this->min_height && $this->min_height))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if form upload is valid
|
||||
*/
|
||||
function is_valid($form_name)
|
||||
{
|
||||
global $request;
|
||||
$upload = $request->file($form_name);
|
||||
|
||||
return (!empty($upload) && $upload['name'] !== 'none');
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Check for bad content (IE mime-sniffing)
|
||||
*/
|
||||
function valid_content(&$file)
|
||||
{
|
||||
return ($file->check_content($this->disallowed_content));
|
||||
}
|
||||
|
||||
/**
|
||||
* Get image type/extension mapping
|
||||
*
|
||||
* @return array Array containing the image types and their extensions
|
||||
*/
|
||||
static public function image_types()
|
||||
{
|
||||
$result = array(
|
||||
IMAGETYPE_GIF => array('gif'),
|
||||
IMAGETYPE_JPEG => array('jpg', 'jpeg'),
|
||||
IMAGETYPE_PNG => array('png'),
|
||||
IMAGETYPE_SWF => array('swf'),
|
||||
IMAGETYPE_PSD => array('psd'),
|
||||
IMAGETYPE_BMP => array('bmp'),
|
||||
IMAGETYPE_TIFF_II => array('tif', 'tiff'),
|
||||
IMAGETYPE_TIFF_MM => array('tif', 'tiff'),
|
||||
IMAGETYPE_JPC => array('jpg', 'jpeg'),
|
||||
IMAGETYPE_JP2 => array('jpg', 'jpeg'),
|
||||
IMAGETYPE_JPX => array('jpg', 'jpeg'),
|
||||
IMAGETYPE_JB2 => array('jpg', 'jpeg'),
|
||||
IMAGETYPE_IFF => array('iff'),
|
||||
IMAGETYPE_WBMP => array('wbmp'),
|
||||
IMAGETYPE_XBM => array('xbm'),
|
||||
);
|
||||
|
||||
if (defined('IMAGETYPE_SWC'))
|
||||
{
|
||||
$result[IMAGETYPE_SWC] = array('swc');
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue