cpython/Tools/ssl/test_multiple_versions.py

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#./python
"""Run Python tests with multiple installations of OpenSSL
The script
(1) downloads OpenSSL tar bundle
(2) extracts it to ../openssl/src/openssl-VERSION/
(3) compiles OpenSSL
(4) installs OpenSSL into ../openssl/VERSION/
(5) forces a recompilation of Python modules using the
header and library files from ../openssl/VERSION/
(6) runs Python's test suite
The script must be run with Python's build directory as current working
directory:
./python Tools/ssl/test_multiple_versions.py
The script uses LD_RUN_PATH, LD_LIBRARY_PATH, CPPFLAGS and LDFLAGS to bend
search paths for header files and shared libraries. It's known to work on
Linux with GCC 4.x.
(c) 2013 Christian Heimes <christian@python.org>
"""
import logging
import os
import tarfile
import shutil
import subprocess
import sys
from urllib.request import urlopen
log = logging.getLogger("multissl")
OPENSSL_VERSIONS = [
"0.9.7m", "0.9.8i", "0.9.8l", "0.9.8m", "0.9.8y", "1.0.0k", "1.0.1e"
]
FULL_TESTS = [
"test_asyncio", "test_ftplib", "test_hashlib", "test_httplib",
"test_imaplib", "test_nntplib", "test_poplib", "test_smtplib",
"test_smtpnet", "test_urllib2_localnet", "test_venv"
]
MINIMAL_TESTS = ["test_ssl", "test_hashlib"]
CADEFAULT = True
HERE = os.path.abspath(os.getcwd())
DEST_DIR = os.path.abspath(os.path.join(HERE, os.pardir, "openssl"))
class BuildSSL:
url_template = "https://www.openssl.org/source/openssl-{}.tar.gz"
module_files = ["Modules/_ssl.c",
"Modules/socketmodule.c",
"Modules/_hashopenssl.c"]
def __init__(self, version, openssl_compile_args=(), destdir=DEST_DIR):
self._check_python_builddir()
self.version = version
self.openssl_compile_args = openssl_compile_args
# installation directory
self.install_dir = os.path.join(destdir, version)
# source file
self.src_file = os.path.join(destdir, "src",
"openssl-{}.tar.gz".format(version))
# build directory (removed after install)
self.build_dir = os.path.join(destdir, "src",
"openssl-{}".format(version))
@property
def openssl_cli(self):
"""openssl CLI binary"""
return os.path.join(self.install_dir, "bin", "openssl")
@property
def openssl_version(self):
"""output of 'bin/openssl version'"""
env = os.environ.copy()
env["LD_LIBRARY_PATH"] = self.lib_dir
cmd = [self.openssl_cli, "version"]
return self._subprocess_output(cmd, env=env)
@property
def pyssl_version(self):
"""Value of ssl.OPENSSL_VERSION"""
env = os.environ.copy()
env["LD_LIBRARY_PATH"] = self.lib_dir
cmd = ["./python", "-c", "import ssl; print(ssl.OPENSSL_VERSION)"]
return self._subprocess_output(cmd, env=env)
@property
def include_dir(self):
return os.path.join(self.install_dir, "include")
@property
def lib_dir(self):
return os.path.join(self.install_dir, "lib")
@property
def has_openssl(self):
return os.path.isfile(self.openssl_cli)
@property
def has_src(self):
return os.path.isfile(self.src_file)
def _subprocess_call(self, cmd, stdout=subprocess.DEVNULL, env=None,
**kwargs):
log.debug("Call '%s'", " ".join(cmd))
return subprocess.check_call(cmd, stdout=stdout, env=env, **kwargs)
def _subprocess_output(self, cmd, env=None, **kwargs):
log.debug("Call '%s'", " ".join(cmd))
out = subprocess.check_output(cmd, env=env)
return out.strip().decode("utf-8")
def _check_python_builddir(self):
if not os.path.isfile("python") or not os.path.isfile("setup.py"):
raise ValueError("Script must be run in Python build directory")
def _download_openssl(self):
"""Download OpenSSL source dist"""
src_dir = os.path.dirname(self.src_file)
if not os.path.isdir(src_dir):
os.makedirs(src_dir)
url = self.url_template.format(self.version)
log.info("Downloading OpenSSL from {}".format(url))
req = urlopen(url, cadefault=CADEFAULT)
# KISS, read all, write all
data = req.read()
log.info("Storing {}".format(self.src_file))
with open(self.src_file, "wb") as f:
f.write(data)
def _unpack_openssl(self):
"""Unpack tar.gz bundle"""
# cleanup
if os.path.isdir(self.build_dir):
shutil.rmtree(self.build_dir)
os.makedirs(self.build_dir)
tf = tarfile.open(self.src_file)
base = "openssl-{}/".format(self.version)
# force extraction into build dir
members = tf.getmembers()
for member in members:
if not member.name.startswith(base):
raise ValueError(member.name)
member.name = member.name[len(base):]
log.info("Unpacking files to {}".format(self.build_dir))
tf.extractall(self.build_dir, members)
def _build_openssl(self):
"""Now build openssl"""
log.info("Running build in {}".format(self.install_dir))
cwd = self.build_dir
cmd = ["./config", "shared", "--prefix={}".format(self.install_dir)]
cmd.extend(self.openssl_compile_args)
self._subprocess_call(cmd, cwd=cwd)
self._subprocess_call(["make"], cwd=cwd)
def _install_openssl(self, remove=True):
self._subprocess_call(["make", "install"], cwd=self.build_dir)
if remove:
shutil.rmtree(self.build_dir)
def install_openssl(self):
if not self.has_openssl:
if not self.has_src:
self._download_openssl()
else:
log.debug("Already has src %s", self.src_file)
self._unpack_openssl()
self._build_openssl()
self._install_openssl()
else:
log.info("Already has installation {}".format(self.install_dir))
# validate installation
version = self.openssl_version
if self.version not in version:
raise ValueError(version)
def touch_pymods(self):
# force a rebuild of all modules that use OpenSSL APIs
for fname in self.module_files:
os.utime(fname)
def recompile_pymods(self):
log.info("Using OpenSSL build from {}".format(self.build_dir))
# overwrite header and library search paths
env = os.environ.copy()
env["CPPFLAGS"] = "-I{}".format(self.include_dir)
env["LDFLAGS"] = "-L{}".format(self.lib_dir)
# set rpath
env["LD_RUN_PATH"] = self.lib_dir
log.info("Rebuilding Python modules")
self.touch_pymods()
cmd = ["./python", "setup.py", "build"]
self._subprocess_call(cmd, env=env)
def check_pyssl(self):
version = self.pyssl_version
if self.version not in version:
raise ValueError(version)
def run_pytests(self, *args):
cmd = ["./python", "-m", "test"]
cmd.extend(args)
self._subprocess_call(cmd, stdout=None)
def run_python_tests(self, *args):
self.recompile_pymods()
self.check_pyssl()
self.run_pytests(*args)
def main(*args):
builders = []
for version in OPENSSL_VERSIONS:
if version in ("0.9.8i", "0.9.8l"):
openssl_compile_args = ("no-asm",)
else:
openssl_compile_args = ()
builder = BuildSSL(version, openssl_compile_args)
builder.install_openssl()
builders.append(builder)
for builder in builders:
builder.run_python_tests(*args)
# final touch
builder.touch_pymods()
if __name__ == "__main__":
logging.basicConfig(level=logging.INFO,
format="*** %(levelname)s %(message)s")
args = sys.argv[1:]
if not args:
args = ["-unetwork", "-v"]
args.extend(FULL_TESTS)
main(*args)