mercurial/httprangereader.py
author Vadim Gelfer <vadim.gelfer@gmail.com>
Sun, 26 Feb 2006 20:53:37 -0800
changeset 1899 888d298ddb91
parent 1559 59b3639df0a9
child 2138 f5046cab9e2e
permissions -rw-r--r--
many small changes to templater. get string code to parse escapes. uses eval now, should parse strings itself soon. let caller check if fragment is defined using "in". make templatepath take optional file name.

# httprangereader.py - just what it says
#
# Copyright 2005 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.

import byterange, urllib2

class httprangereader(object):
    def __init__(self, url):
        self.url = url
        self.pos = 0
    def seek(self, pos):
        self.pos = pos
    def read(self, bytes=None):
        opener = urllib2.build_opener(byterange.HTTPRangeHandler())
        urllib2.install_opener(opener)
        req = urllib2.Request(self.url)
        end = ''
        if bytes: end = self.pos + bytes
        req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
        f = urllib2.urlopen(req)
        return f.read()