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# Copyright (c) 2011 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Platform-specific utility methods shared by several scripts."""
import os
import subprocess
import google.path_utils
class PlatformUtility(object):
def __init__(self, base_dir):
"""Args:
base_dir: the base dir for running tests.
"""
self._base_dir = base_dir
self._httpd_cmd_string = None # used for starting/stopping httpd
self._bash = "/bin/bash"
def _UnixRoot(self):
"""Returns the path to root."""
return "/"
def GetFilesystemRoot(self):
"""Returns the root directory of the file system."""
return self._UnixRoot()
def GetTempDirectory(self):
"""Returns the file system temp directory
Note that this does not use a random subdirectory, so it's not
intrinsically secure. If you need a secure subdir, use the tempfile
package.
"""
return os.getenv("TMPDIR", "/tmp")
def FilenameToUri(self, path, use_http=False, use_ssl=False, port=8000):
"""Convert a filesystem path to a URI.
Args:
path: For an http URI, the path relative to the httpd server's
DocumentRoot; for a file URI, the full path to the file.
use_http: if True, returns a URI of the form http://127.0.0.1:8000/.
If False, returns a file:/// URI.
use_ssl: if True, returns HTTPS URL (https://127.0.0.1:8000/).
This parameter is ignored if use_http=False.
port: The port number to append when returning an HTTP URI
"""
if use_http:
protocol = 'http'
if use_ssl:
protocol = 'https'
return "%s://127.0.0.1:%d/%s" % (protocol, port, path)
return "file://" + path
def GetStartHttpdCommand(self, output_dir,
httpd_conf_path, mime_types_path,
document_root=None, apache2=False):
"""Prepares the config file and output directory to start an httpd server.
Returns a list of strings containing the server's command line+args.
Args:
output_dir: the path to the server's output directory, for log files.
It will be created if necessary.
httpd_conf_path: full path to the httpd.conf file to be used.
mime_types_path: full path to the mime.types file to be used.
document_root: full path to the DocumentRoot. If None, the DocumentRoot
from the httpd.conf file will be used. Note that the httpd.conf
file alongside this script does not specify any DocumentRoot, so if
you're using that one, be sure to specify a document_root here.
apache2: boolean if true will cause this function to return start
command for Apache 2.x as opposed to Apache 1.3.x. This flag
is ignored on Mac (but preserved here for compatibility in
function signature with win), where httpd2 is used always
"""
exe_name = "httpd"
cert_file = google.path_utils.FindUpward(self._base_dir, 'tools',
'python', 'google',
'httpd_config', 'httpd2.pem')
ssl_enabled = os.path.exists('/etc/apache2/mods-enabled/ssl.conf')
httpd_vars = {
"httpd_executable_path":
os.path.join(self._UnixRoot(), "usr", "sbin", exe_name),
"httpd_conf_path": httpd_conf_path,
"ssl_certificate_file": cert_file,
"document_root" : document_root,
"server_root": os.path.join(self._UnixRoot(), "usr"),
"mime_types_path": mime_types_path,
"output_dir": output_dir,
"ssl_mutex": "file:"+os.path.join(output_dir, "ssl_mutex"),
"user": os.environ.get("USER", "#%d" % os.geteuid()),
"lock_file": os.path.join(output_dir, "accept.lock"),
}
google.path_utils.MaybeMakeDirectory(output_dir)
# We have to wrap the command in bash
# -C: process directive before reading config files
# -c: process directive after reading config files
# Apache wouldn't run CGIs with permissions==700 unless we add
# -c User "<username>"
httpd_cmd_string = (
'%(httpd_executable_path)s'
' -f %(httpd_conf_path)s'
' -c \'TypesConfig "%(mime_types_path)s"\''
' -c \'CustomLog "%(output_dir)s/access_log.txt" common\''
' -c \'ErrorLog "%(output_dir)s/error_log.txt"\''
' -c \'PidFile "%(output_dir)s/httpd.pid"\''
' -C \'User "%(user)s"\''
' -C \'ServerRoot "%(server_root)s"\''
' -c \'LockFile "%(lock_file)s"\''
)
if document_root:
httpd_cmd_string += ' -C \'DocumentRoot "%(document_root)s"\''
if ssl_enabled:
httpd_cmd_string += (
' -c \'SSLCertificateFile "%(ssl_certificate_file)s"\''
' -c \'SSLMutex "%(ssl_mutex)s"\''
)
# Save a copy of httpd_cmd_string to use for stopping httpd
self._httpd_cmd_string = httpd_cmd_string % httpd_vars
httpd_cmd = [self._bash, "-c", self._httpd_cmd_string]
return httpd_cmd
def GetStopHttpdCommand(self):
"""Returns a list of strings that contains the command line+args needed to
stop the http server used in the http tests.
This tries to fetch the pid of httpd (if available) and returns the
command to kill it. If pid is not available, kill all httpd processes
"""
if not self._httpd_cmd_string:
return ["true"] # Haven't been asked for the start cmd yet. Just pass.
# Add a sleep after the shutdown because sometimes it takes some time for
# the port to be available again.
return [self._bash, "-c", self._httpd_cmd_string + ' -k stop && sleep 5']
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