192 lines
6.8 KiB
Python
192 lines
6.8 KiB
Python
# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
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#
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# This file is part of Poezio.
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#
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# Poezio is free software: you can redistribute it and/or modify
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# it under the terms of the zlib license. See the COPYING file.
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"""
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various useful functions
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"""
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from datetime import datetime, timedelta
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import base64
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import os
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import mimetypes
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import hashlib
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import subprocess
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import time
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import shlex
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from config import config
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ROOM_STATE_NONE = 11
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ROOM_STATE_CURRENT = 10
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ROOM_STATE_PRIVATE = 15
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ROOM_STATE_MESSAGE = 12
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ROOM_STATE_HL = 13
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def get_base64_from_file(path):
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"""
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Convert the content of a file to base64
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"""
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if not os.path.isfile(path):
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return (None, None, "File does not exist")
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size = os.path.getsize(path)
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if size > 16384:
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return (None, None,"File is too big")
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fdes = open(path, 'rb')
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data = fdes.read()
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encoded = base64.encodestring(data)
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sha1 = hashlib.sha1(data).hexdigest()
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mime_type = mimetypes.guess_type(path)[0]
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return (encoded, mime_type, sha1)
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def get_output_of_command(command):
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"""
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Runs a command and returns its output
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"""
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try:
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return subprocess.check_output(command.split()).decode('utf-8').split('\n')
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except subprocess.CalledProcessError:
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return None
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def is_in_path(command, return_abs_path=False):
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"""
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Return True if 'command' is found in one of the directories in the user's
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path. If 'return_abs_path' is True, return the absolute path of the first
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found command instead. Return False otherwise and on errors
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"""
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for directory in os.getenv('PATH').split(os.pathsep):
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try:
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if command in os.listdir(directory):
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if return_abs_path:
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return os.path.join(directory, command)
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else:
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return True
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except OSError:
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# If the user has non directories in his path
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pass
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return False
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DISTRO_INFO = {
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'Arch Linux': '/etc/arch-release',
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'Aurox Linux': '/etc/aurox-release',
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'Conectiva Linux': '/etc/conectiva-release',
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'CRUX': '/usr/bin/crux',
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'Debian GNU/Linux': '/etc/debian_version',
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'Fedora Linux': '/etc/fedora-release',
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'Gentoo Linux': '/etc/gentoo-release',
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'Linux from Scratch': '/etc/lfs-release',
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'Mandrake Linux': '/etc/mandrake-release',
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'Slackware Linux': '/etc/slackware-version',
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'Solaris/Sparc': '/etc/release',
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'Source Mage': '/etc/sourcemage_version',
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'SUSE Linux': '/etc/SuSE-release',
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'Sun JDS': '/etc/sun-release',
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'PLD Linux': '/etc/pld-release',
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'Yellow Dog Linux': '/etc/yellowdog-release',
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# many distros use the /etc/redhat-release for compatibility
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# so Redhat is the last
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'Redhat Linux': '/etc/redhat-release'
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}
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def get_os_info():
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"""
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Returns a detailed and well formated string containing
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informations about the operating system
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"""
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if os.name == 'posix':
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executable = 'lsb_release'
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params = ' --description --codename --release --short'
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full_path_to_executable = is_in_path(executable, return_abs_path = True)
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if full_path_to_executable:
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command = executable + params
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process = subprocess.Popen([command], shell=True,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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close_fds=True)
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process.wait()
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output = process.stdout.readline().decode('utf-8').strip()
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# some distros put n/a in places, so remove those
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output = output.replace('n/a', '').replace('N/A', '')
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return output
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# lsb_release executable not available, so parse files
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for distro_name in DISTRO_INFO:
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path_to_file = DISTRO_INFO[distro_name]
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if os.path.exists(path_to_file):
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if os.access(path_to_file, os.X_OK):
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# the file is executable (f.e. CRUX)
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# yes, then run it and get the first line of output.
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text = get_output_of_command(path_to_file)[0]
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else:
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fdes = open(path_to_file)
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text = fdes.readline().strip() # get only first line
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fdes.close()
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if path_to_file.endswith('version'):
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# sourcemage_version and slackware-version files
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# have all the info we need (name and version of distro)
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if not os.path.basename(path_to_file).startswith(
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'sourcemage') or not\
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os.path.basename(path_to_file).startswith('slackware'):
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text = distro_name + ' ' + text
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elif path_to_file.endswith('aurox-release') or \
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path_to_file.endswith('arch-release'):
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# file doesn't have version
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text = distro_name
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elif path_to_file.endswith('lfs-release'):
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# file just has version
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text = distro_name + ' ' + text
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os_info = text.replace('\n', '')
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return os_info
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# our last chance, ask uname and strip it
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uname_output = get_output_of_command('uname -sr')
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if uname_output is not None:
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os_info = uname_output[0] # only first line
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return os_info
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os_info = 'N/A'
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return os_info
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def datetime_tuple(timestamp):
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"""
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Convert timestamp using strptime and the format: %Y%m%dT%H:%M:%S
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Because of various datetime formats are used the following exceptions
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are handled:
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- Optional milliseconds appened to the string are removed
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- Optional Z (that means UTC) appened to the string are removed
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- XEP-082 datetime strings have all '-' cahrs removed to meet
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the above format.
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"""
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timestamp = timestamp.split('.')[0]
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timestamp = timestamp.replace('-', '')
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try:
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ret = datetime.strptime(timestamp, '%Y%m%dT%H:%M:%SZ')
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except ValueError: # Support the deprecated format, XEP 0091 :(
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ret = datetime.strptime(timestamp, '%Y%m%dT%H:%M:%S')
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# convert UTC to local time, with DST etc.
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dst = timedelta(seconds=time.altzone)
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ret -= dst
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return ret
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def shell_split(st):
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sh = shlex.shlex(st, posix=True)
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sh.whitespace_split = True
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sh.quotes = '"'
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ret = list()
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try:
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w = sh.get_token()
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while w is not None:
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ret.append(w)
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w = sh.get_token()
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return ret
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except ValueError:
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return st.split(" ")
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def replace_key_with_bound(key):
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if config.has_option('bindings', key):
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return config.get(key, key, 'bindings')
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else:
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return key
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