gstreamer/validate/launcher/httpserver.py

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2014-05-16 14:20:26 +00:00
#!/usr/bin/env python2
#
# Copyright (c) 2013,Thibault Saunier <thibault.saunier@collabora.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
# Boston, MA 02110-1301, USA.
import os
import time
import loggable
import subprocess
import sys
logcat = "httpserver"
class HTTPServer(loggable.Loggable):
""" Class to run a SimpleHttpServer in a process."""
def __init__(self, options):
loggable.Loggable.__init__(self)
self.options = options
self._process = None
self._logsfile = None
def _check_is_up(self, timeout=60):
""" Check if the server is up, running a simple test based on wget. """
start = time.time()
while True:
try:
subprocess.check_output(["wget", "127.0.0.1:%s" %
(self.options.http_server_port),
"-O", os.devnull],
stderr=self._logsfile)
return True
except subprocess.CalledProcessError:
pass
if time.time() - start > timeout:
return False
time.sleep(1)
def start(self):
""" Start the server in a subprocess """
self._logsfile = open(os.path.join(self.options.logsdir,
"httpserver.logs"), 'w+')
if self.options.http_server_dir is not None:
if self._check_is_up(timeout=2):
return True
print "Starting Server"
try:
self.debug("Launching http server")
cmd = "%s %s %d %s" % (sys.executable, os.path.join(os.path.dirname(__file__),
"RangeHTTPServer.py"),
self.options.http_server_port,
self.options.http_bandwith,
)
curdir = os.path.abspath(os.curdir)
os.chdir(self.options.http_server_dir)
# cmd = "twistd -no web --path=%s -p %d" % (
# self.options.http_server_dir, self.options.http_server_port)
self.debug(
"Launching server: %s (logs in %s)", cmd, self._logsfile)
self._process = subprocess.Popen(cmd.split(" "),
stderr=self._logsfile,
stdout=self._logsfile)
os.chdir(curdir)
self.debug("Launched http server")
# Dirty way to avoid eating to much CPU...
# good enough for us anyway.
time.sleep(1)
if self._check_is_up():
print "Started"
return True
else:
print "Failed starting server"
self._process.terminate()
self._process = None
except OSError as ex:
print "Failed starting server"
self.warning(logcat, "Could not launch server %s" % ex)
return False
def stop(self):
""" Stop the server subprocess if running. """
if self._process:
self._process.terminate()
self._process = None
self.debug("Server stopped")