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PyBitmessage
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flake8: depends

This commit is contained in:
Dmitri Bogomolov 2018-04-18 13:34:12 +03:00
parent b27cc071a2
commit 701521c55a
Signed by untrusted user: g1itch
GPG Key ID: 720A756F18DEED13
1 changed files with 159 additions and 74 deletions
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233
src/depends.py
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@ -1,16 +1,18 @@
#! python
#!/usr/bin/env python2
import subprocess
import sys
import os
import pyelliptic.openssl
import subprocess
import sys
# Only really old versions of Python don't have sys.hexversion. We don't
# support them. The logging module was introduced in Python 2.3
if not hasattr(sys, 'hexversion') or sys.hexversion < 0x20300F0:
sys.stdout.write('Python version: ' + sys.version)
sys.stdout.write('PyBitmessage requires Python 2.7.3 or greater (but not Python 3)')
sys.exit()
sys.exit(
'Python version: %s\n'
'PyBitmessage requires Python 2.7.3 or greater (but not Python 3)'
% sys.version
)
# We can now use logging so set up a simple configuration
import logging
@ -32,22 +34,28 @@ def check_hashlib():
"""Do hashlib check.
The hashlib module check with version as if it included or not
in The Python Standard library , its a module containing an
in The Python Standard library, it's a module containing an
interface to the most popular hashing algorithms. hashlib
implements some of the algorithms, however if OpenSSL
installed, hashlib is able to use this algorithms as well.
"""
if sys.hexversion < 0x020500F0:
logger.error('The hashlib module is not included in this version of Python.')
logger.error(
'The hashlib module is not included in this version of Python.')
return False
import hashlib
if '_hashlib' not in hashlib.__dict__:
logger.error('The RIPEMD-160 hash algorithm is not available. The hashlib module is not linked against OpenSSL.')
logger.error(
'The RIPEMD-160 hash algorithm is not available.'
' The hashlib module is not linked against OpenSSL.')
return False
try:
hashlib.new('ripemd160')
except ValueError:
logger.error('The RIPEMD-160 hash algorithm is not available. The hashlib module utilizes an OpenSSL library with RIPEMD disabled.')
logger.error(
'The RIPEMD-160 hash algorithm is not available.'
' The hashlib module utilizes an OpenSSL library with'
' RIPEMD disabled.')
return False
return True
@ -59,9 +67,11 @@ def check_sqlite():
support in python version for specifieed platform.
"""
if sys.hexversion < 0x020500F0:
logger.error('The sqlite3 module is not included in this version of Python.')
logger.error(
'The sqlite3 module is not included in this version of Python.')
if sys.platform.startswith('freebsd'):
logger.error('On FreeBSD, try running "pkg install py27-sqlite3" as root.')
logger.error(
'On FreeBSD, try running "pkg install py27-sqlite3" as root.')
return False
try:
import sqlite3
@ -69,25 +79,37 @@ def check_sqlite():
logger.error('The sqlite3 module is not available')
return False
logger.info('sqlite3 Module Version: ' + sqlite3.version)
logger.info('SQLite Library Version: ' + sqlite3.sqlite_version)
#sqlite_version_number formula: https://sqlite.org/c3ref/c_source_id.html
sqlite_version_number = sqlite3.sqlite_version_info[0] * 1000000 + sqlite3.sqlite_version_info[1] * 1000 + sqlite3.sqlite_version_info[2]
logger.info('sqlite3 Module Version: %s', sqlite3.version)
logger.info('SQLite Library Version: %s', sqlite3.sqlite_version)
# sqlite_version_number formula: https://sqlite.org/c3ref/c_source_id.html
sqlite_version_number = (
sqlite3.sqlite_version_info[0] * 1000000
+ sqlite3.sqlite_version_info[1] * 1000
+ sqlite3.sqlite_version_info[2]
)
conn = None
try:
try:
conn = sqlite3.connect(':memory:')
if sqlite_version_number >= 3006018:
sqlite_source_id = conn.execute('SELECT sqlite_source_id();').fetchone()[0]
logger.info('SQLite Library Source ID: ' + sqlite_source_id)
sqlite_source_id = conn.execute(
'SELECT sqlite_source_id();'
).fetchone()[0]
logger.info('SQLite Library Source ID: %s', sqlite_source_id)
if sqlite_version_number >= 3006023:
compile_options = ', '.join(map(lambda row: row[0], conn.execute('PRAGMA compile_options;')))
logger.info('SQLite Library Compile Options: ' + compile_options)
#There is no specific version requirement as yet, so we just use the
#first version that was included with Python.
compile_options = ', '.join(map(
lambda row: row[0],
conn.execute('PRAGMA compile_options;')
))
logger.info(
'SQLite Library Compile Options: %s', compile_options)
# There is no specific version requirement as yet, so we just
# use the first version that was included with Python.
if sqlite_version_number < 3000008:
logger.error('This version of SQLite is too old. PyBitmessage requires SQLite 3.0.8 or later')
logger.error(
'This version of SQLite is too old.'
' PyBitmessage requires SQLite 3.0.8 or later')
return False
return True
except sqlite3.Error:
@ -97,6 +119,7 @@ def check_sqlite():
if conn:
conn.close()
def check_openssl():
"""Do openssl dependency check.
@ -106,10 +129,11 @@ def check_openssl():
try:
import ctypes
except ImportError:
logger.error('Unable to check OpenSSL. The ctypes module is not available.')
logger.error(
'Unable to check OpenSSL. The ctypes module is not available.')
return False
#We need to emulate the way PyElliptic searches for OpenSSL.
# We need to emulate the way PyElliptic searches for OpenSSL.
if sys.platform == 'win32':
paths = ['libeay32.dll']
if getattr(sys, 'frozen', False):
@ -140,34 +164,43 @@ def check_openssl():
cflags_regex = re.compile(r'(?:OPENSSL_NO_)(AES|EC|ECDH|ECDSA)(?!\w)')
for path in paths:
logger.info('Checking OpenSSL at ' + path)
logger.info('Checking OpenSSL at %s', path)
try:
library = ctypes.CDLL(path)
except OSError:
continue
logger.info('OpenSSL Name: ' + library._name)
logger.info('OpenSSL Name: %s', library._name)
try:
openssl_version, openssl_hexversion, openssl_cflags = pyelliptic.openssl.get_version(library)
openssl_version, openssl_hexversion, openssl_cflags = \
pyelliptic.openssl.get_version(library)
except AttributeError: # sphinx chokes
return True
if not openssl_version:
logger.error('Cannot determine version of this OpenSSL library.')
return False
logger.info('OpenSSL Version: ' + openssl_version)
logger.info('OpenSSL Compile Options: ' + openssl_cflags)
#PyElliptic uses EVP_CIPHER_CTX_new and EVP_CIPHER_CTX_free which were
#introduced in 0.9.8b.
logger.info('OpenSSL Version: %s', openssl_version)
logger.info('OpenSSL Compile Options: %s', openssl_cflags)
# PyElliptic uses EVP_CIPHER_CTX_new and EVP_CIPHER_CTX_free which were
# introduced in 0.9.8b.
if openssl_hexversion < 0x90802F:
logger.error('This OpenSSL library is too old. PyBitmessage requires OpenSSL 0.9.8b or later with AES, Elliptic Curves (EC), ECDH, and ECDSA enabled.')
logger.error(
'This OpenSSL library is too old. PyBitmessage requires'
' OpenSSL 0.9.8b or later with AES, Elliptic Curves (EC),'
' ECDH, and ECDSA enabled.')
return False
matches = cflags_regex.findall(openssl_cflags)
if len(matches) > 0:
logger.error('This OpenSSL library is missing the following required features: ' + ', '.join(matches) + '. PyBitmessage requires OpenSSL 0.9.8b or later with AES, Elliptic Curves (EC), ECDH, and ECDSA enabled.')
logger.error(
'This OpenSSL library is missing the following required'
' features: %s. PyBitmessage requires OpenSSL 0.9.8b'
' or later with AES, Elliptic Curves (EC), ECDH,'
' and ECDSA enabled.', ', '.join(matches))
return False
return True
return False
#TODO: The minimum versions of pythondialog and dialog need to be determined
# TODO: The minimum versions of pythondialog and dialog need to be determined
def check_curses():
"""Do curses dependency check.
@ -176,33 +209,42 @@ def check_curses():
utility.
"""
if sys.hexversion < 0x20600F0:
logger.error('The curses interface requires the pythondialog package and the dialog utility.')
logger.error(
'The curses interface requires the pythondialog package and'
' the dialog utility.')
return False
try:
import curses
except ImportError:
logger.error('The curses interface can not be used. The curses module is not available.')
logger.error(
'The curses interface can not be used. The curses module'
' is not available.')
return False
logger.info('curses Module Version: ' + curses.version)
logger.info('curses Module Version: %s', curses.version)
try:
import dialog
except ImportError:
logger.error('The curses interface can not be used. The pythondialog package is not available.')
logger.error(
'The curses interface can not be used. The pythondialog'
' package is not available.')
return False
try:
subprocess.check_call('which dialog')
except subprocess.CalledProcessError:
logger.error('Curses requires the `dialog` command to be installed as well as the python library.')
logger.error(
'Curses requires the `dialog` command to be installed as well as'
' the python library.')
return False
logger.info('pythondialog Package Version: ' + dialog.__version__)
logger.info('pythondialog Package Version: %s', dialog.__version__)
dialog_util_version = dialog.Dialog().cached_backend_version
#The pythondialog author does not like Python2 str, so we have to use
#unicode for just the version otherwise we get the repr form which includes
#the module and class names along with the actual version.
logger.info('dialog Utility Version' + unicode(dialog_util_version))
# The pythondialog author does not like Python2 str, so we have to use
# unicode for just the version otherwise we get the repr form which
# includes the module and class names along with the actual version.
logger.info('dialog Utility Version %s', unicode(dialog_util_version))
return True
def check_pyqt():
"""Do pyqt dependency check.
@ -212,37 +254,56 @@ def check_pyqt():
try:
import PyQt4.QtCore
except ImportError:
logger.error('The PyQt4 package is not available. PyBitmessage requires PyQt 4.8 or later and Qt 4.7 or later.')
logger.error(
'The PyQt4 package is not available. PyBitmessage requires'
' PyQt 4.8 or later and Qt 4.7 or later.')
if sys.platform.startswith('openbsd'):
logger.error('On OpenBSD, try running "pkg_add py-qt4" as root.')
elif sys.platform.startswith('freebsd'):
logger.error('On FreeBSD, try running "pkg install py27-qt4" as root.')
logger.error(
'On FreeBSD, try running "pkg install py27-qt4" as root.')
elif os.path.isfile("/etc/os-release"):
with open("/etc/os-release", 'rt') as osRelease:
for line in osRelease:
if line.startswith("NAME="):
if "fedora" in line.lower():
logger.error('On Fedora, try running "dnf install PyQt4" as root.')
logger.error(
'On Fedora, try running'
' "dnf install PyQt4" as root.')
elif "opensuse" in line.lower():
logger.error('On openSUSE, try running "zypper install python-qt" as root.')
logger.error(
'On openSUSE, try running'
' "zypper install python-qt" as root.')
elif "ubuntu" in line.lower():
logger.error('On Ubuntu, try running "apt-get install python-qt4" as root.')
logger.error(
'On Ubuntu, try running'
' "apt-get install python-qt4" as root.')
elif "debian" in line.lower():
logger.error('On Debian, try running "apt-get install python-qt4" as root.')
logger.error(
'On Debian, try running'
' "apt-get install python-qt4" as root.')
else:
logger.error('If your package manager does not have this package, try running "pip install PyQt4".')
logger.error(
'If your package manager does not have'
' this package, try running'
' "pip install PyQt4".')
return False
logger.info('PyQt Version: ' + PyQt4.QtCore.PYQT_VERSION_STR)
logger.info('Qt Version: ' + PyQt4.QtCore.QT_VERSION_STR)
logger.info('PyQt Version: %s', PyQt4.QtCore.PYQT_VERSION_STR)
logger.info('Qt Version: %s', PyQt4.QtCore.QT_VERSION_STR)
passed = True
if PyQt4.QtCore.PYQT_VERSION < 0x40800:
logger.error('This version of PyQt is too old. PyBitmessage requries PyQt 4.8 or later.')
logger.error(
'This version of PyQt is too old. PyBitmessage requries'
' PyQt 4.8 or later.')
passed = False
if PyQt4.QtCore.QT_VERSION < 0x40700:
logger.error('This version of Qt is too old. PyBitmessage requries Qt 4.7 or later.')
logger.error(
'This version of Qt is too old. PyBitmessage requries'
' Qt 4.7 or later.')
passed = False
return passed
def check_msgpack():
"""Do sgpack module check.
@ -256,27 +317,43 @@ def check_msgpack():
'The msgpack package is not available.'
'It is highly recommended for messages coding.')
if sys.platform.startswith('openbsd'):
logger.error('On OpenBSD, try running "pkg_add py-msgpack" as root.')
logger.error(
'On OpenBSD, try running "pkg_add py-msgpack" as root.')
elif sys.platform.startswith('freebsd'):
logger.error('On FreeBSD, try running "pkg install py27-msgpack-python" as root.')
logger.error(
'On FreeBSD, try running "pkg install py27-msgpack-python"'
' as root.')
elif os.path.isfile("/etc/os-release"):
with open("/etc/os-release", 'rt') as osRelease:
for line in osRelease:
if line.startswith("NAME="):
if "fedora" in line.lower():
logger.error('On Fedora, try running "dnf install python2-msgpack" as root.')
logger.error(
'On Fedora, try running'
' "dnf install python2-msgpack" as root.')
elif "opensuse" in line.lower():
logger.error('On openSUSE, try running "zypper install python-msgpack-python" as root.')
logger.error(
'On openSUSE, try running'
' "zypper install python-msgpack-python"'
' as root.')
elif "ubuntu" in line.lower():
logger.error('On Ubuntu, try running "apt-get install python-msgpack" as root.')
logger.error(
'On Ubuntu, try running'
' "apt-get install python-msgpack" as root.')
elif "debian" in line.lower():
logger.error('On Debian, try running "apt-get install python-msgpack" as root.')
logger.error(
'On Debian, try running'
' "apt-get install python-msgpack" as root.')
else:
logger.error('If your package manager does not have this package, try running "pip install msgpack-python".')
logger.error(
'If your package manager does not have'
' this package, try running'
' "pip install msgpack-python".')
return True
def check_dependencies(verbose = False, optional = False):
def check_dependencies(verbose=False, optional=False):
"""Do dependency check.
It identifies project dependencies and checks if there are
@ -289,33 +366,41 @@ def check_dependencies(verbose = False, optional = False):
has_all_dependencies = True
#Python 2.7.3 is the required minimum. Python 3+ is not supported, but it is
#still useful to provide information about our other requirements.
# Python 2.7.3 is the required minimum. Python 3+ is not supported,
# but it is still useful to provide information about our other
# requirements.
logger.info('Python version: %s', sys.version)
if sys.hexversion < 0x20703F0:
logger.error('PyBitmessage requires Python 2.7.3 or greater (but not Python 3+)')
logger.error(
'PyBitmessage requires Python 2.7.3 or greater'
' (but not Python 3+)')
has_all_dependencies = False
if sys.hexversion >= 0x3000000:
logger.error('PyBitmessage does not support Python 3+. Python 2.7.3 or greater is required.')
logger.error(
'PyBitmessage does not support Python 3+. Python 2.7.3'
' or greater is required.')
has_all_dependencies = False
check_functions = [check_hashlib, check_sqlite, check_openssl, check_msgpack]
check_functions = [
check_hashlib, check_sqlite, check_openssl, check_msgpack]
if optional:
check_functions.extend([check_pyqt, check_curses])
#Unexpected exceptions are handled here
# Unexpected exceptions are handled here
for check in check_functions:
try:
has_all_dependencies &= check()
except:
logger.exception(check.__name__ + ' failed unexpectedly.')
logger.exception('%s failed unexpectedly.', check.__name__)
has_all_dependencies = False
if not has_all_dependencies:
logger.critical('PyBitmessage cannot start. One or more dependencies are unavailable.')
sys.exit()
sys.exit(
'PyBitmessage cannot start. One or more dependencies are'
' unavailable.'
)
if __name__ == '__main__':
"""Check Dependencies"""
check_dependencies(True, True)