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# -*- python -*-
# libguestfs
# Copyright (C) 2013 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import sys
import os
import re
import shutil
from time import sleep
from random import randint
progname = os.path.basename(sys.argv[0])
guestsdir = "../../test-data/phony-guests"
listen_addr = "localhost"
#listen_addr = "127.0.0.1"
#listen_addr = ""
connect_addr = "localhost"
#connect_addr = "127.0.0.1"
if os.getenv('SKIP_TEST_HTTP_PY'):
print >>sys.stderr, \
("%s: test skipped because environment variable is set" % progname)
exit(77)
# Proxy settings can break this test.
del os.environ['http_proxy']
# Remove the stamp file.
stampfile = "%s/stamp-test-http" % os.getcwd()
def unlink_stampfile():
try:
os.unlink(stampfile)
except:
pass
unlink_stampfile()
# Choose a random port number.
# XXX Should check it is not in use.
port = randint(60000, 65000)
pid = os.fork()
if pid > 0:
# Parent (client).
import guestfs
# Make sure that the child (HTTP server) is killed on exit even if
# we exit abnormally.
def cleanup():
unlink_stampfile()
if pid > 0:
os.kill(pid, 15)
sys.exitfunc = cleanup
# Wait for the child to touch the stamp file to indicate it has
# started listening for requests.
for i in range(1, 10):
if os.access(stampfile, os.F_OK):
break
sleep(1)
if i == 3:
print("%s: waiting for the web server to start up ..." % progname)
if not os.access(stampfile, os.F_OK):
print >>sys.stderr, \
("%s: error: web server process did not start up" % progname)
exit(1)
# Create libguestfs handle and connect to the web server.
g = guestfs.GuestFS(python_return_dict=True)
server = "%s:%d" % (connect_addr, port)
g.add_drive_opts("/fedora.img", readonly=True, format="raw",
protocol="http", server=[server])
g.launch()
# Inspection is quite a thorough test.
roots = g.inspect_os()
if len(roots) == 0:
print >>sys.stderr, \
("%s: error: inspection failed to find any OSes in guest image" %
progname)
exit(1)
if len(roots) > 1:
print >>sys.stderr, \
("%s: error: inspection found a multi-boot OS which is not "
"expected" % progname)
exit(1)
type_ = g.inspect_get_type(roots[0])
distro = g.inspect_get_distro(roots[0])
if type_ != "linux" or distro != "fedora":
print >>sys.stderr, \
("%s: error: inspection found wrong OS type (%s, %s)" %
(progname, type_, distro))
exit(1)
g.close()
else:
# Child (HTTP server).
from BaseHTTPServer import HTTPServer
from SimpleHTTPServer import SimpleHTTPRequestHandler
from SocketServer import ThreadingMixIn
os.chdir(guestsdir)
class ThreadingServer(ThreadingMixIn, HTTPServer):
pass
# This is an extended version of SimpleHTTPRequestHandler that can
# handle byte ranges. See also:
# https://naclports.googlecode.com/svn/trunk/src/httpd.py
class ByteRangeRequestHandler(SimpleHTTPRequestHandler):
def do_GET(self):
if 'Range' in self.headers:
m = re.match('\s*bytes\s*=\s*(\d+)\s*-\s*(\d+)\s*',
self.headers['Range'])
if m:
start = int(m.group(1))
end = int(m.group(2))
length = end - start + 1
f = self.send_head_partial(start, length)
if f:
f.seek(start, os.SEEK_CUR)
shutil.copyfileobj(f, self.wfile, length)
f.close()
return
return SimpleHTTPRequestHandler.do_GET(self)
def send_head_partial(self, offset, length):
path = self.translate_path(self.path)
f = None
if os.path.isdir(path):
if not self.path.endswith('/'):
# redirect browser - doing basically what apache does
self.send_response(301)
self.send_header("Location", self.path + "/")
self.end_headers()
return None
for index in "index.html", "index.htm":
index = os.path.join(path, index)
if os.path.exists(index):
path = index
break
else:
return self.list_directory(path)
ctype = self.guess_type(path)
try:
f = open(path, 'rb')
except IOError:
self.send_error(404, "File not found")
return None
self.send_response(206, 'Partial content')
self.send_header("Content-Range", str(offset) + '-' +
str(length+offset-1))
self.send_header("Content-Length", str(length))
self.send_header("Content-type", ctype)
fs = os.fstat(f.fileno())
self.send_header("Last-Modified",
self.date_time_string(fs.st_mtime))
self.end_headers()
return f
server_address = (listen_addr, port)
httpd = ThreadingServer(server_address, ByteRangeRequestHandler)
sa = httpd.socket.getsockname()
print("%s: serving %s on %s port %d ..." % (progname,
os.getcwd(), sa[0], sa[1]))
# Touch the stamp file, which starts the client.
open(stampfile, 'a')
# Start serving until killed.
httpd.serve_forever()
os._exit(0)
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