(6.6/6.7 Only) Custom UploadStream class extension. Modifies default upload behavior so as to store files using date of upload within directory structure, such as: ./upload/2015/04/02/myfile.txt

CustomSplitAttachFolder.php

<?php

	/* 	Author: Angel Magaña -- cheleguanaco@cheleguanaco.com
	*  	File: ./custom/include/CustomSplitAttachFolder.php
	*	
	*  	UploadStream extension to add use of date named  
	*  	subfolders to ./upload directory. 
	*	
	*	e.g. ./upload/2015/04/02/<MyApril2nd2015File.docRepresentedAsGUID>	
	*  	
	*	Enabled via: $sugar_config['upload_wrapper_class'] = 'CustomSplitAttachFolder';
	*/

class CustomSplitAttachFolder extends UploadStream
{
    public function __construct()
    {
    	parent::__construct();
    }

    /**
     * Get upload directory
     * @return string
     */
    public static function getDir()
    {
        if(empty(parent::$upload_dir)) { 
            parent::$upload_dir = rtrim($GLOBALS['sugar_config']['upload_dir'], '/\\') . self::getSubDir();

            if(empty(parent::$upload_dir)) {
                parent::$upload_dir = 'upload' . self::getSubDir();
            }
            
            if(!file_exists(parent::$upload_dir)) { 
                sugar_mkdir(parent::$upload_dir, 0755, true);
            }
        }

        return parent::$upload_dir; 
    }
    
    public static function getSubDir()
    {
    	$subdir = '';
    	$id = $GLOBALS['_REQUEST']['id'];
    	
    	if (empty($id))
    	{
    		$subdir = gmdate('/Y/m/d/');
    	}
    	elseif (!empty($id))
    	{
    		$bean_type = $GLOBALS['_REQUEST']['type'];
    		if ($bean_type == 'Documents')
    		{
    			$bean_type = 'DocumentRevisions';
    		}
    		$bean = BeanFactory::getBean($bean_type, $id);
    		
    		$dt = strtotime($bean->date_entered);
    		$subdir = gmdate('/Y/m/d/', $dt);
    	}
    	
    	return $subdir;
    }

    /**
     * Get real FS path of the upload stream file
     * Non-static version for overrides
     * @param string $path Upload stream path (with upload://)
     * @return string FS path
     */
    public function getFSPath($path, $mode = 0)
    {
    	$path = substr($path, strlen(parent::STREAM_NAME)+3); // cut off upload://
    	$path = str_replace("\\", "/", $path); // canonicalize path
    	if($path == ".." || substr($path, 0, 3) == "../" || substr($path, -3, 3) == "/.." || strstr($path, "/../")) {
    		return null;
    	}
		
		if ($mode == 0)
		{
			$path = self::getDir() . self::getSubDir() . $path;
		}
		elseif ($mode == 1)
		{
			$path = self::getDir() . $path;
		}
		
		return $path;
    }

	//Here we open stream to download an attachment
    public function stream_open($path, $mode)
    {   
        $fullpath = $this->getFSPath($path, 1);
        if(empty($fullpath)) return false;
        if($mode == 'r') {
            $this->fp = fopen($fullpath, $mode);
        } else {
            // if we will be writing, try to transparently create the directory
            $this->fp = @fopen($fullpath, $mode);
            if(!$this->fp && !file_exists(dirname($fullpath))) {
                mkdir(dirname($fullpath), 0755, true);
                $this->fp = fopen($fullpath, $mode);
            }
        }
        return !empty($this->fp);
    }

    public function url_stat($path, $flags)
    {
        return @stat($this->getFSPath($path, 1));
    }

}