CODEWITHSUNDEEP
cherrypy
Tsf
Tsf

Reputation: 1419

serve_file for any file object

In cherrypy.lib.static.py there is a method:

  serve_file(path, content_type=None, disposition=None, name=None)

where the argument "path" must be a real file (absolute path). Is there something similar to serve any Python file object?

Upvotes: 1

Views: 2980

Answers (3)

fumanchu
fumanchu

Reputation: 14559

As long as your file or file-like object is iterable, just return it from your handler function instead of a string.

Update:

To serve it as a download, set the Content-Type and Content-Disposition headers like so:

cherrypy.response.headers["Content-Type"] = "application/x-download"
cd = 'attachment; filename="%s"' % name
cherrypy.response.headers["Content-Disposition"] = cd

Or, use the serve_fileobj function in recent versions of cherrypy/lib/static.py, which does this for you and more.

Upvotes: 2

Eric Wilson
Eric Wilson

Reputation: 59405

Taking a new look at http://www.cherrypy.org/browser/trunk/cherrypy/lib/static.py, it looks like serve_fileobj does exactly what you want.

Edit: I've tried this now, and it only renders the file contents to the screen, rather than allowing the file to be downloaded.

Upvotes: 0

Alex Martelli
Alex Martelli

Reputation: 882691

From studying http://www.cherrypy.org/browser/trunk/cherrypy/lib/static.py I'd have to say, no: the serve_file function is "monolithic", and does its own bodyfile = open(path, 'rb'), nor does there seem to be any alternative way. Pity, as it would be easy to refactor the function and add another e.g. serve_open_file to cover your case, having both delegate to an internal function for the "hard" logic such as multipart/byteranges serving. May be worth your while to open a feature request ("enhancement ticket") on cherrypy.org -- may not be a killer feature but I can see use cases, and implementing it wouldn't be hard for the cherrypy people (visit their site and follow the instructions on the page to "log in" to it).

Upvotes: 3

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