tahoe-lafs/src/allmydata/scripts/common_http.py
2009-02-22 17:31:06 -07:00

69 lines
2.0 KiB
Python

from cStringIO import StringIO
import urlparse, httplib
import allmydata # for __full_version__
# copied from twisted/web/client.py
def parse_url(url, defaultPort=None):
url = url.strip()
parsed = urlparse.urlparse(url)
scheme = parsed[0]
path = urlparse.urlunparse(('','')+parsed[2:])
if defaultPort is None:
if scheme == 'https':
defaultPort = 443
else:
defaultPort = 80
host, port = parsed[1], defaultPort
if ':' in host:
host, port = host.split(':')
port = int(port)
if path == "":
path = "/"
return scheme, host, port, path
def do_http(method, url, body=""):
if isinstance(body, str):
body = StringIO(body)
elif isinstance(body, unicode):
raise TypeError("do_http body must be a bytestring, not unicode")
else:
# We must give a Content-Length header to twisted.web, otherwise it
# seems to get a zero-length file. I suspect that "chunked-encoding"
# may fix this.
assert body.tell
assert body.seek
assert body.read
scheme, host, port, path = parse_url(url)
if scheme == "http":
c = httplib.HTTPConnection(host, port)
elif scheme == "https":
c = httplib.HTTPSConnection(host, port)
else:
raise ValueError("unknown scheme '%s', need http or https" % scheme)
c.putrequest(method, path)
c.putheader("Hostname", host)
c.putheader("User-Agent", allmydata.__full_version__ + " (tahoe-client)")
c.putheader("Connection", "close")
old = body.tell()
body.seek(0, 2)
length = body.tell()
body.seek(old)
c.putheader("Content-Length", str(length))
c.endheaders()
while True:
data = body.read(8192)
if not data:
break
c.send(data)
return c.getresponse()
def check_http_error(resp, stderr):
if resp.status < 200 or resp.status >= 300:
print >>stderr, "error %d during HTTP request" % resp.status
return 1