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29 lines
862 B
Python
29 lines
862 B
Python
# httprangereader.py - just what it says
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#
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# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms
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# of the GNU General Public License, incorporated herein by reference.
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import byterange, urllib2
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class httprangereader(object):
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def __init__(self, url):
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self.url = url
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self.pos = 0
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def seek(self, pos):
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self.pos = pos
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def read(self, bytes=None):
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opener = urllib2.build_opener(byterange.HTTPRangeHandler())
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urllib2.install_opener(opener)
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req = urllib2.Request(self.url)
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end = ''
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if bytes:
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end = self.pos + bytes - 1
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req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
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f = urllib2.urlopen(req)
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data = f.read()
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if bytes:
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data = data[:bytes]
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return data
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