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#! /usr/bin/env python
# www3.py -- print the contents of a URL on stdout
# - error checking
# - Error 302 handling
import sys
import urllib
import types
def main():
if len(sys.argv) != 2 or sys.argv[1][:1] == '-':
print "Usage:", sys.argv[0], "url"
sys.exit(2)
url = sys.argv[1]
fp = my_urlopen(url)
while 1:
line = fp.readline()
if not line: break
sys.stdout.write(line)
def my_urlopen(url):
try:
fp = urllib.urlopen(url)
return fp
except IOError, msg:
if type(msg) == types.TupleType and len(msg) == 4:
m = msg[3]
if msg[1] == 302:
if m.has_key('location'):
url = m['location']
print 'Location:', url
return my_urlopen(url)
elif m.has_key('uri'):
url = m['uri']
print 'URI:', url
return my_urlopen(url)
print '(Error 302 w/o Location/URI header???)'
print msg[:3]
for line in m.headers:
sys.stdout.write(line)
else:
print msg
sys.exit(1)
main()
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