PHP fileupload::image_types方法代码示例

/**
* Acts in place of the standard avatar processing function. 
*/
function gravatar_process($data, $error)
{
    global $config, $db, $user, $phpbb_root_path, $phpEx;
    // Make sure getimagesize works...
    if (($image_data = @getimagesize($data['gravatar'])) === false && (empty($data['width']) || empty($data['height']))) {
        $error[] = $user->lang['UNABLE_GET_IMAGE_SIZE'];
        return false;
    }
    if (!empty($image_data) && ($image_data[0] < 2 || $image_data[1] < 2)) {
        $error[] = $user->lang['AVATAR_NO_SIZE'];
        return false;
    }
    $width = $data['width'] && $data['height'] ? $data['width'] : $image_data[0];
    $height = $data['width'] && $data['height'] ? $data['height'] : $image_data[1];
    if ($width < 2 || $height < 2) {
        $error[] = $user->lang['AVATAR_NO_SIZE'];
        return false;
    }
    // Check image type
    include_once $phpbb_root_path . 'includes/functions_upload.' . $phpEx;
    $types = fileupload::image_types();
    if (!isset($types[$image_data[2]])) {
        $error[] = $user->lang['UNABLE_GET_IMAGE_SIZE'];
    }
    if ($config['avatar_max_width'] || $config['avatar_max_height']) {
        if ($width > $config['avatar_max_width'] || $height > $config['avatar_max_height']) {
            $error[] = sprintf($user->lang['AVATAR_WRONG_SIZE'], $config['avatar_min_width'], $config['avatar_min_height'], $config['avatar_max_width'], $config['avatar_max_height'], $width, $height);
            return false;
        }
    }
    if ($config['avatar_min_width'] || $config['avatar_min_height']) {
        if ($width < $config['avatar_min_width'] || $height < $config['avatar_min_height']) {
            $error[] = sprintf($user->lang['AVATAR_WRONG_SIZE'], $config['avatar_min_width'], $config['avatar_min_height'], $config['avatar_max_width'], $config['avatar_max_height'], $width, $height);
            return false;
        }
    }
    return array(AVATAR_REMOTE, $data['gravatar'], $width, $height);
}

/**
* Remote avatar linkage
*/
function avatar_remote($data, &$error)
{
    global $config, $db, $user, $phpbb_root_path, $phpEx;
    if (!preg_match('#^(http|https|ftp)://#i', $data['remotelink'])) {
        $data['remotelink'] = 'http://' . $data['remotelink'];
    }
    if (!preg_match('#^(http|https|ftp)://(?:(.*?\\.)*?[a-z0-9\\-]+?\\.[a-z]{2,4}|(?:\\d{1,3}\\.){3,5}\\d{1,3}):?([0-9]*?).*?\\.(gif|jpg|jpeg|png)$#i', $data['remotelink'])) {
        $error[] = $user->lang['AVATAR_URL_INVALID'];
        return false;
    }
    // Make sure getimagesize works...
    if (($image_data = @getimagesize($data['remotelink'])) === false && (empty($data['width']) || empty($data['height']))) {
        $error[] = $user->lang['UNABLE_GET_IMAGE_SIZE'];
        return false;
    }
    if (!empty($image_data) && ($image_data[0] < 2 || $image_data[1] < 2)) {
        $error[] = $user->lang['AVATAR_NO_SIZE'];
        return false;
    }
    $width = $data['width'] && $data['height'] ? $data['width'] : $image_data[0];
    $height = $data['width'] && $data['height'] ? $data['height'] : $image_data[1];
    if ($width < 2 || $height < 2) {
        $error[] = $user->lang['AVATAR_NO_SIZE'];
        return false;
    }
    // Check image type
    include_once $phpbb_root_path . 'includes/functions_upload.' . $phpEx;
    $types = fileupload::image_types();
    $extension = strtolower(filespec::get_extension($data['remotelink']));
    if (!empty($image_data) && (!isset($types[$image_data[2]]) || !in_array($extension, $types[$image_data[2]]))) {
        if (!isset($types[$image_data[2]])) {
            $error[] = $user->lang['UNABLE_GET_IMAGE_SIZE'];
        } else {
            $error[] = sprintf($user->lang['IMAGE_FILETYPE_MISMATCH'], $types[$image_data[2]][0], $extension);
        }
        return false;
    }
    if ($config['avatar_max_width'] || $config['avatar_max_height']) {
        if ($width > $config['avatar_max_width'] || $height > $config['avatar_max_height']) {
            $error[] = sprintf($user->lang['AVATAR_WRONG_SIZE'], $config['avatar_min_width'], $config['avatar_min_height'], $config['avatar_max_width'], $config['avatar_max_height'], $width, $height);
            return false;
        }
    }
    if ($config['avatar_min_width'] || $config['avatar_min_height']) {
        if ($width < $config['avatar_min_width'] || $height < $config['avatar_min_height']) {
            $error[] = sprintf($user->lang['AVATAR_WRONG_SIZE'], $config['avatar_min_width'], $config['avatar_min_height'], $config['avatar_max_width'], $config['avatar_max_height'], $width, $height);
            return false;
        }
    }
    return array(AVATAR_REMOTE, $data['remotelink'], $width, $height);
}

 /**
  * Move file to destination folder
  * The phpbb_root_path variable will be applied to the destination path
  *
  * @param string $destination Destination path, for example $config['avatar_path']
  * @param bool $overwrite If set to true, an already existing file will be overwritten
  * @param bool $skip_image_check If set to true, the check for the file to be a valid image is skipped
  * @param string $chmod Permission mask for chmodding the file after a successful move. The mode entered here reflects the mode defined by {@link phpbb_chmod()}
  *
  * @access public
  */
 function move_file($destination, $overwrite = false, $skip_image_check = false, $chmod = false)
 {
     global $user, $phpbb_root_path;
     if (sizeof($this->error)) {
         return false;
     }
     $chmod = $chmod === false ? CHMOD_READ | CHMOD_WRITE : $chmod;
     // We need to trust the admin in specifying valid upload directories and an attacker not being able to overwrite it...
     $this->destination_path = $phpbb_root_path . $destination;
     // Check if the destination path exist...
     if (!file_exists($this->destination_path)) {
         @unlink($this->filename);
         return false;
     }
     $upload_mode = @ini_get('open_basedir') || @ini_get('safe_mode') || strtolower(@ini_get('safe_mode')) == 'on' ? 'move' : 'copy';
     $upload_mode = $this->local ? 'local' : $upload_mode;
     $this->destination_file = $this->destination_path . '/' . utf8_basename($this->realname);
     // Check if the file already exist, else there is something wrong...
     if (file_exists($this->destination_file) && !$overwrite) {
         @unlink($this->filename);
         $this->error[] = $user->lang($this->upload->error_prefix . 'GENERAL_UPLOAD_ERROR', $this->destination_file);
         $this->file_moved = false;
         return false;
     } else {
         if (file_exists($this->destination_file)) {
             @unlink($this->destination_file);
         }
         switch ($upload_mode) {
             case 'copy':
                 if (!@copy($this->filename, $this->destination_file)) {
                     if (!@move_uploaded_file($this->filename, $this->destination_file)) {
                         $this->error[] = sprintf($user->lang[$this->upload->error_prefix . 'GENERAL_UPLOAD_ERROR'], $this->destination_file);
                     }
                 }
                 break;
             case 'move':
                 if (!@move_uploaded_file($this->filename, $this->destination_file)) {
                     if (!@copy($this->filename, $this->destination_file)) {
                         $this->error[] = sprintf($user->lang[$this->upload->error_prefix . 'GENERAL_UPLOAD_ERROR'], $this->destination_file);
                     }
                 }
                 break;
             case 'local':
                 if (!@copy($this->filename, $this->destination_file)) {
                     $this->error[] = sprintf($user->lang[$this->upload->error_prefix . 'GENERAL_UPLOAD_ERROR'], $this->destination_file);
                 }
                 break;
         }
         // Remove temporary filename
         @unlink($this->filename);
         if (sizeof($this->error)) {
             return false;
         }
         phpbb_chmod($this->destination_file, $chmod);
     }
     // Try to get real filesize from destination folder
     $this->filesize = @filesize($this->destination_file) ? @filesize($this->destination_file) : $this->filesize;
     // Get mimetype of supplied file
     $this->mimetype = $this->get_mimetype($this->destination_file);
     if ($this->is_image() && !$skip_image_check) {
         $this->width = $this->height = 0;
         if (($this->image_info = @getimagesize($this->destination_file)) !== false) {
             $this->width = $this->image_info[0];
             $this->height = $this->image_info[1];
             if (!empty($this->image_info['mime'])) {
                 $this->mimetype = $this->image_info['mime'];
             }
             // Check image type
             $types = fileupload::image_types();
             if (!isset($types[$this->image_info[2]]) || !in_array($this->extension, $types[$this->image_info[2]])) {
                 if (!isset($types[$this->image_info[2]])) {
                     $this->error[] = sprintf($user->lang['IMAGE_FILETYPE_INVALID'], $this->image_info[2], $this->mimetype);
                 } else {
                     $this->error[] = sprintf($user->lang['IMAGE_FILETYPE_MISMATCH'], $types[$this->image_info[2]][0], $this->extension);
                 }
             }
             // Make sure the dimensions match a valid image
             if (empty($this->width) || empty($this->height)) {
                 $this->error[] = $user->lang['ATTACHED_IMAGE_NOT_IMAGE'];
             }
         } else {
             $this->error[] = $user->lang['UNABLE_GET_IMAGE_SIZE'];
         }
     }
     $this->file_moved = true;
     $this->additional_checks();
     unset($this->upload);
     return true;
 }

 /**
  * {@inheritdoc}
  */
 public function process_form($request, $template, $user, $row, &$error)
 {
     $url = $request->variable('avatar_remote_url', '');
     $width = $request->variable('avatar_remote_width', 0);
     $height = $request->variable('avatar_remote_height', 0);
     if (empty($url)) {
         return false;
     }
     if (!preg_match('#^(http|https|ftp)://#i', $url)) {
         $url = 'http://' . $url;
     }
     if (!function_exists('validate_data')) {
         require $this->phpbb_root_path . 'includes/functions_user.' . $this->php_ext;
     }
     $validate_array = validate_data(array('url' => $url), array('url' => array('string', true, 5, 255)));
     $error = array_merge($error, $validate_array);
     if (!empty($error)) {
         return false;
     }
     // Check if this url looks alright
     // This isn't perfect, but it's what phpBB 3.0 did, and might as well make sure everything is compatible
     if (!preg_match('#^(http|https|ftp)://(?:(.*?\\.)*?[a-z0-9\\-]+?\\.[a-z]{2,4}|(?:\\d{1,3}\\.){3,5}\\d{1,3}):?([0-9]*?).*?\\.(' . implode('|', $this->allowed_extensions) . ')$#i', $url)) {
         $error[] = 'AVATAR_URL_INVALID';
         return false;
     }
     // Make sure getimagesize works...
     if (function_exists('getimagesize')) {
         if (($width <= 0 || $height <= 0) && ($image_data = @getimagesize($url)) === false) {
             $error[] = 'UNABLE_GET_IMAGE_SIZE';
             return false;
         }
         if (!empty($image_data) && ($image_data[0] <= 0 || $image_data[1] <= 0)) {
             $error[] = 'AVATAR_NO_SIZE';
             return false;
         }
         $width = $width && $height ? $width : $image_data[0];
         $height = $width && $height ? $height : $image_data[1];
     }
     if ($width <= 0 || $height <= 0) {
         $error[] = 'AVATAR_NO_SIZE';
         return false;
     }
     if (!class_exists('fileupload')) {
         include $this->phpbb_root_path . 'includes/functions_upload.' . $this->php_ext;
     }
     $types = \fileupload::image_types();
     $extension = strtolower(\filespec::get_extension($url));
     // Check if this is actually an image
     if ($file_stream = @fopen($url, 'r')) {
         // Timeout after 1 second
         stream_set_timeout($file_stream, 1);
         // read some data to ensure headers are present
         fread($file_stream, 1024);
         $meta = stream_get_meta_data($file_stream);
         if (isset($meta['wrapper_data']['headers']) && is_array($meta['wrapper_data']['headers'])) {
             $headers = $meta['wrapper_data']['headers'];
         } else {
             if (isset($meta['wrapper_data']) && is_array($meta['wrapper_data'])) {
                 $headers = $meta['wrapper_data'];
             } else {
                 $headers = array();
             }
         }
         foreach ($headers as $header) {
             $header = preg_split('/ /', $header, 2);
             if (strtr(strtolower(trim($header[0], ':')), '_', '-') === 'content-type') {
                 if (strpos($header[1], 'image/') !== 0) {
                     $error[] = 'AVATAR_URL_INVALID';
                     fclose($file_stream);
                     return false;
                 } else {
                     fclose($file_stream);
                     break;
                 }
             }
         }
     } else {
         $error[] = 'AVATAR_URL_INVALID';
         return false;
     }
     if (!empty($image_data) && (!isset($types[$image_data[2]]) || !in_array($extension, $types[$image_data[2]]))) {
         if (!isset($types[$image_data[2]])) {
             $error[] = 'UNABLE_GET_IMAGE_SIZE';
         } else {
             $error[] = array('IMAGE_FILETYPE_MISMATCH', $types[$image_data[2]][0], $extension);
         }
         return false;
     }
     if ($this->config['avatar_max_width'] || $this->config['avatar_max_height']) {
         if ($width > $this->config['avatar_max_width'] || $height > $this->config['avatar_max_height']) {
             $error[] = array('AVATAR_WRONG_SIZE', $this->config['avatar_min_width'], $this->config['avatar_min_height'], $this->config['avatar_max_width'], $this->config['avatar_max_height'], $width, $height);
             return false;
         }
     }
     if ($this->config['avatar_min_width'] || $this->config['avatar_min_height']) {
         if ($width < $this->config['avatar_min_width'] || $height < $this->config['avatar_min_height']) {
             $error[] = array('AVATAR_WRONG_SIZE', $this->config['avatar_min_width'], $this->config['avatar_min_height'], $this->config['avatar_max_width'], $this->config['avatar_max_height'], $width, $height);
//.........这里部分代码省略.........

 /**
  * Check than remote banner exists
  * called by banner_process()
  *
  * @param	string	$banner	The banner's remote url
  * @param	array	$error	The array error, passed by reference
  * @return	false|string	String if no errors, else false
  */
 private function _banner_remote($banner, &$error)
 {
     if (!preg_match('#^(http|https|ftp)://#i', $banner)) {
         $banner = 'http://' . $banner;
     }
     if (!preg_match('#^(http|https|ftp)://(?:(.*?\\.)*?[a-z0-9\\-]+?\\.[a-z]{2,4}|(?:\\d{1,3}\\.){3,5}\\d{1,3}):?([0-9]*?).*?\\.(gif|jpg|jpeg|png)$#i', $banner)) {
         $error[] = $this->user->lang['DIR_BANNER_URL_INVALID'];
         return false;
     }
     // Make sure getimagesize works...
     if (($image_data = @getimagesize($banner)) === false) {
         $error[] = $this->user->lang['DIR_BANNER_UNABLE_GET_IMAGE_SIZE'];
         return false;
     }
     if (!empty($image_data) && ($image_data[0] < 2 || $image_data[1] < 2)) {
         $error[] = $this->user->lang['DIR_BANNER_UNABLE_GET_IMAGE_SIZE'];
         return false;
     }
     $width = $image_data[0];
     $height = $image_data[1];
     // Check image type
     if (!class_exists('fileupload')) {
         include $this->root_path . 'includes/functions_upload.' . $this->php_ext;
     }
     $types = \fileupload::image_types();
     $extension = strtolower(\filespec::get_extension($banner));
     // Check if this is actually an image
     if ($file_stream = @fopen($banner, 'r')) {
         // Timeout after 1 second
         stream_set_timeout($file_stream, 1);
         // read some data to ensure headers are present
         fread($file_stream, 1024);
         $meta = stream_get_meta_data($file_stream);
         if (isset($meta['wrapper_data']['headers']) && is_array($meta['wrapper_data']['headers'])) {
             $headers = $meta['wrapper_data']['headers'];
         } else {
             if (isset($meta['wrapper_data']) && is_array($meta['wrapper_data'])) {
                 $headers = $meta['wrapper_data'];
             } else {
                 $headers = array();
             }
         }
         foreach ($headers as $header) {
             $header = preg_split('/ /', $header, 2);
             if (strtr(strtolower(trim($header[0], ':')), '_', '-') === 'content-type') {
                 if (strpos($header[1], 'image/') !== 0) {
                     $error[] = 'DIR_BANNER_URL_INVALID';
                     fclose($file_stream);
                     return false;
                 } else {
                     fclose($file_stream);
                     break;
                 }
             }
         }
     } else {
         $error[] = 'DIR_BANNER_URL_INVALID';
         return false;
     }
     if (!empty($image_data) && (!isset($types[$image_data[2]]) || !in_array($extension, $types[$image_data[2]]))) {
         if (!isset($types[$image_data[2]])) {
             $error[] = $this->user->lang['UNABLE_GET_IMAGE_SIZE'];
         } else {
             $error[] = $this->user->lang('DIR_BANNER_IMAGE_FILETYPE_MISMATCH', $types[$image_data[2]][0], $extension);
         }
         return false;
     }
     if (($this->config['dir_banner_width'] || $this->config['dir_banner_height']) && ($width > $this->config['dir_banner_width'] || $height > $this->config['dir_banner_height'])) {
         $error[] = $this->user->lang('DIR_BANNER_WRONG_SIZE', $this->config['dir_banner_width'], $this->config['dir_banner_height'], $width, $height);
         return false;
     }
     return $banner;
 }