Meaning of Depth header in WebDAV PROPFIND method

问题

I am writing something in PHP to create a virtual file system using WebDAV.

I am trying to get my head around the PROPFIND request method. RFC 4918 mentions something about it, but I’m not sure I understand. Can someone clarify this:

• What is the role of the Depth value (0, 1, infinity)? Has it something to do with folders vs files?
• Why does the client make multiple PROPFIND requests on a folder?

I think that might help me to sort out some of the rest.

Thanks

回答1:

What is the role of the Depth value (0, 1, infinity)? Has it something to do with folders vs files?

For directories:

• Depth 0: Retrieve properties of the directory
• Depth 1: as 0 + properties of all files in the directory
• Depth infinity: as 1 + properties of all files in sub-directories of the directory (recursively)

For files it has no effect.

The depth applies similarly to other WebDAV methods.

来源：https://stackoverflow.com/questions/31284615/meaning-of-depth-header-in-webdav-propfind-method