Implementing a WebDAV filesystem with PHP and SabreDAV
So far in this article we've implemented a fully-working WebDAV server using SabreDAV's built-in file system tree. If your files are stored in a different manner, this can also be used with SabreDAV.
For example, you might use a database to store information about files in addition to storing them on disk. If you were doing this then you would want to make necessary database updates when a file is created, edited, moved or deleted.
We're not going to implement a custom filesystem in this article, but hopefully the following paragraphs provide a starting for implementing your own.
To implement such a solution you must extend the
Sabre_DAV_Tree class. The only method you need to implement to do this is the getNodeForPath() method.
This method resolves a file path to a PHP object that SabreDAV can use. The object returned must implement the
Sabre_DAV_IDirectory interface if it is a directory, or it must implement
Sabre_DAV_IFile if it is a file.
These interfaces define a number of methods in regards to handling WebDAV operations. For instance, your class that implements
Sabre_DAV_IDirectory must define how to create, remove and delete a directory.
To get a better idea of how this fits together, I recommend looking at the following classes:
Objects of these types are returned from the
getNodeForPath() method in
In effect, you can duplicate these classes and add in your own database methods where applicable.