def fetch(config, source, target):
"""Fetch a file from a remote system."""
if not source:
raise FetchError("empty source URL (downloading to %s)" % target)
if source.startswith("/"):
os.link(source, target)
return
# Match lazr.restfulclient, for convenience when working with
# development instances of Launchpad.
no_check_certificate = bool(
os.environ.get('LP_DISABLE_SSL_CERTIFICATE_VALIDATION', False))
# This should arguably use urllib2/urllib.request or similar instead.
command = ["wget", "-nv"]
if no_check_certificate:
command.append("--no-check-certificate")
command.extend([source, "-O", target])
ret = proxy_call(config, "fetch", command)
if ret != 0:
unlink_force(target)
command_str = "wget -nv"
if no_check_certificate:
command_str += " --no-check-certificate"
command_str += " '%s' -O '%s'" % (source, target)
raise FetchError("%s returned %d" % (command_str, ret))
def test_call_unset_proxy(self):
os.environ["http_proxy"] = "http://set.example.org:3128/"
with mkfile(self.config_path) as f:
print("caller\tunset", file=f)
path = os.path.join(self.temp_dir, "proxy")
with mkfile(path) as fp:
self.assertEqual(
0,
proxy_call(self.config,
"caller",
"echo \"$http_proxy\"",
stdout=fp,
shell=True))
with open(path) as fp:
self.assertEqual("", fp.read().rstrip("\n"))