[Zope] PDF needs ExternalFile Object with byte-range capability?

Brad Clements bkc@murkworks.com
Wed, 3 Feb 1999 16:02:46 -0400


I need to start serving large .PDF files from my ZopeHTTPServer.

I'm thinking that I'd rather not put the actual data into bobo. 

Does anyone have an ExternalFile object?

Also, I'd like to support byte-range serving. I'm thinking that I could 
modify Image.py File class, in index_html check to see if REQUEST 
has a byte-range heading, if so use a range on self.data, as in return 
self.data[startoffset:endoffset]

I'd also have to set RESPONSE headers. I'm concerned about getLen 
and len methods. Are they used to set the content-length response 
header? If I set a content-length header myself will that over-ride Zope's 
default process of setting the length?



Brad Clements,                bkc@murkworks.com   (315)268-1000
http://www.murkworks.com                          (315)268-9812 Fax
netmeeting: ils://ils.murkworks.com               ICQ: 14856937

We must come down from our heights, and leave our straight 
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learn truths by strong contrasts; and in hovels, in forecastles, 
and among our own outcasts in foreign lands, see what has been 
wrought upon our fellow-creatures by accident, hardship, or vice. 
- Richard Henry Dana, Jr. 1836