class grubParser:
def __init__(self, _dir, write=False, timeout=-1):
self.dir = _dir
self.write = write
self.grub_conf = os.path.join(_dir, "grub.conf")
self.lock = FileLock("%s/.grub.lock" % _dir)
try:
self.lock.lock(write, timeout)
except IOError:
fail(FAIL_TIMEOUT)
# Fail if grub is not installed
if os.path.exists(self.grub_conf):
self.config = grubConf()
self.config.parseConf(self.grub_conf)
else:
self.fail(FAIL_NOGRUB)
def fail(self, msg):
self.lock.unlock()
fail(msg)
def release(self, save=True):
if save and self.write:
self.config.write(self.grub_conf)
self.lock.unlock()
class grubParser:
def __init__(self, _dir, write=False, timeout=-1):
self.dir = _dir
self.write = write
self.grub_conf = os.path.join(_dir, "grub.conf")
self.lock = FileLock("%s/.grub.lock" % _dir)
try:
self.lock.lock(write, timeout)
except IOError:
fail(FAIL_TIMEOUT)
# Fail if grub is not installed
if os.path.exists(self.grub_conf):
self.config = grubConf()
self.config.parseConf(self.grub_conf)
else:
self.fail(FAIL_NOGRUB)
def fail(self, msg):
self.lock.unlock()
fail(msg)
def release(self, save=True):
if save and self.write:
self.config.write(self.grub_conf)
self.lock.unlock()
class Lock:
def __init__(self, _file, shared=False):
lockfile = os.path.join(os.path.dirname(_file), ".%s" % os.path.basename(_file))
try:
self.lock = FileLock(_file)
self.lock.lock(timeout=TIMEOUT, shared=shared)
except IOError:
fail(FAIL_TIMEOUT)
def release(self):
self.lock.unlock()
class Lock:
def __init__(self, _file, shared=False):
lockfile = os.path.join(os.path.dirname(_file), ".%s" % os.path.basename(_file))
try:
self.lock = FileLock(_file)
self.lock.lock(timeout=TIMEOUT, shared=shared)
except IOError:
fail(FAIL_TIMEOUT)
def release(self):
self.lock.unlock()
def setConf(key, value=None):
lock = FileLock(CONF)
lock.lock(shared=False)
data = file(CONF).read()
lines = data.split("\n")
for index, line in enumerate(lines):
try:
_key, _value = line.split("=", 1)
except ValueError:
continue
_key = _key.strip()
if key == _key or (_key.startswith("#") and _key[1:].strip() == key):
if value:
lines[index] = "%s = '%s'" % (key, value)
elif not line.startswith("#"):
lines[index] = "# %s" % line
file(CONF, "w").write("\n".join(lines))
lock.unlock()
def getConf(key, default=None):
lock = FileLock(CONF)
lock.lock(shared=True)
value = default
for line in file(CONF):
line = line.strip()
try:
_key, _value = line.split("=", 1)
except ValueError:
continue
_key = _key.strip()
if key == _key:
value = _value.strip()
if value.startswith('"') or value.startswith("'"):
value = value[1:-1]
break
lock.unlock()
return value
def setConf(key, value=None):
lock = FileLock(CONF)
lock.lock(shared=False)
data = file(CONF).read()
lines = data.split("\n")
for index, line in enumerate(lines):
try:
_key, _value = line.split("=", 1)
except ValueError:
continue
_key = _key.strip()
if key == _key or (_key.startswith("#") and _key[1:].strip() == key):
if value:
lines[index] = "%s = '%s'" % (key, value)
elif not line.startswith("#"):
lines[index] = "# %s" % line
file(CONF, "w").write("\n".join(lines))
lock.unlock()
def getConf(key, default=None):
lock = FileLock(CONF)
lock.lock(shared=True)
value = default
for line in file(CONF):
line = line.strip()
try:
_key, _value = line.split("=", 1)
except ValueError:
continue
_key = _key.strip()
if key == _key:
value = _value.strip()
if value.startswith('"') or value.startswith("'"):
value = value[1:-1]
break
lock.unlock()
return value
class iniDB:
def __init__(self, db_file, db_mode=0600):
try:
os.makedirs(os.path.dirname(db_file))
except OSError:
pass
self.db_file = db_file
self.lock_file = os.path.join(os.path.dirname(db_file), '.%s' % os.path.basename(db_file))
if not os.path.exists(db_file):
self.__writelock()
file(db_file, "w").close()
os.chmod(db_file, db_mode)
self.__unlock()
self.__readlock()
self.cp = ConfigParser.ConfigParser()
self.cp.read(db_file)
self.__unlock()
def __writelock(self):
self.fl = FileLock(self.lock_file)
self.fl.lock(shared=False)
def __readlock(self):
self.fl = FileLock(self.lock_file)
self.fl.lock(shared=True)
def __unlock(self):
self.fl.unlock()
def listDB(self):
profiles = self.cp.sections()
if "general" in profiles:
profiles.remove("general")
return profiles
def getDB(self, name):
dct = {}
if name in self.cp.sections():
dct = dict(self.cp.items(name))
return dct
def setDB(self, name, dct):
for key, value in dct.iteritems():
if value:
if name not in self.cp.sections():
self.cp.add_section(name)
self.cp.set(name, key, value)
elif name in self.cp.sections():
self.cp.remove_option(name, key)
self.__writelock()
fp = open(self.db_file, "w")
self.cp.write(fp)
fp.close()
self.__unlock()
def remDB(self, name):
self.cp.remove_section(name)
self.__writelock()
fp = open(self.db_file, "w")
self.cp.write(fp)
fp.close()
self.__unlock()
class iniParser:
"""
INI file parsing and manipulation class.
ip = iniParser("my.ini", [chmod=0600, [quiet=False]])
ip.listSections() => ["section1", "section2", ...]
ip.getSection("section1") => {"field1": "value1", "field2": "value2"}
ip.setSection("section1",{"field1": "value1", "field2": "value2"})
ip.removeSection("section2")
"""
def __init__(self, inifile, chmod=0o600, quiet=False):
"""
Constuctor. Creates INI file if it doesn't exist and sets file mode.
"""
self.inifile = inifile
self.chmod = chmod
self.quiet = quiet
try:
os.makedirs(os.path.dirname(inifile))
except OSError:
pass
if not os.path.exists(inifile):
self.__writeLock()
open(inifile, "w").close()
self.__unlock()
os.chmod(inifile, chmod)
def __writeLock(self):
"""
Puts a write lock to file.
"""
self.fl = FileLock(self.inifile)
self.fl.lock(shared=False)
def __readLock(self):
"""
Puts a read lock to file.
"""
self.fl = FileLock(self.inifile)
self.fl.lock(shared=True)
def __unlock(self):
"""
Removes lock from file.
"""
self.fl.unlock()
def __readIni(self):
"""
Gets content of the INI.
"""
ini = configparser.ConfigParser()
try:
ini.read(self.inifile)
except configparser.Error:
ini = None
return ini
def __writeIni(self, ini):
"""
Writes INI to file.
"""
fp = open(self.inifile, "w")
ini.write(fp)
fp.close()
def listSections(self):
"""
Lists sections of INI file.
"""
self.__readLock()
ini = self.__readIni()
self.__unlock()
if not ini:
if self.quiet:
self.__fixIniFile()
return []
else:
raise iniParserError("File is corrupt: %s" % self.inifile)
return ini.sections()
def getSection(self, section):
"""
Returns a section of INI file.
"""
self.__readLock()
ini = self.__readIni()
self.__unlock()
if not ini:
if self.quiet:
self.__fixIniFile()
return {}
else:
raise iniParserError("File is corrupt: %s" % self.inifile)
if section not in ini.sections():
return {}
dct = {}
if section in ini.sections():
dct = dict(ini.items(section))
return dct
def setSection(self, section, dct):
"""
Sets a section of INI file.
"""
self.__writeLock()
ini = self.__readIni()
if not ini:
self.__unlock()
if self.quiet:
self.__fixIniFile()
self.setSection(section, dct)
return
else:
raise iniParserError("File is corrupt: %s" % self.inifile)
if section not in ini.sections():
ini.add_section(section)
for key, value in dct.items():
if value:
ini.set(section, key, value)
elif section in ini.sections():
ini.remove_option(section, key)
self.__writeIni(ini)
self.__unlock()
def removeSection(self, section):
"""
Removes a section from INI file.
"""
self.__writeLock()
ini = self.__readIni()
if not ini:
self.__unlock()
if self.quiet:
self.__fixIniFile()
return
else:
raise iniParserError("File is corrupt: %s" % self.inifile)
ini.remove_section(section)
self.__writeIni(ini)
self.__unlock()
def __fixIniFile(self):
"""
Cleans bogus ini file.
"""
self.__writeLock()
open(self.inifile, "w").write("")
self.__unlock()
class iniDB:
def __init__(self, db_file, db_mode=0o600):
try:
os.makedirs(os.path.dirname(db_file))
except OSError:
pass
self.db_file = db_file
if not os.path.exists(db_file):
self.__writelock()
open(db_file, "w").close()
os.chmod(db_file, db_mode)
self.__unlock()
self.__readlock()
self.cp = configparser.ConfigParser()
try:
self.cp.read(db_file)
except:
print("Network configuration file %s is corrupt" % db_file)
self.__unlock()
def __writelock(self):
self.fl = FileLock(self.db_file)
self.fl.lock(shared=False)
def __readlock(self):
self.fl = FileLock(self.db_file)
self.fl.lock(shared=True)
def __unlock(self):
self.fl.unlock()
def listDB(self):
profiles = self.cp.sections()
if "general" in profiles:
profiles.remove("general")
return profiles
def getDB(self, name):
dct = {}
if name in self.cp.sections():
dct = dict(self.cp.items(name))
return dct
def setDB(self, name, dct):
for key, value in dct.items():
if value:
if name not in self.cp.sections():
self.cp.add_section(name)
self.cp.set(name, key, value)
elif name in self.cp.sections():
self.cp.remove_option(name, key)
# FIXME: This is an ugly hack...
db = iniDB(self.db_file)
for nm in db.listDB():
if nm == name:
continue
for key, value in db.getDB(nm).items():
self.cp.set(nm, key, value)
self.__writelock()
fp = open(self.db_file, "w")
self.cp.write(fp)
fp.close()
self.__unlock()
def remDB(self, name):
self.cp.remove_section(name)
self.__writelock()
fp = open(self.db_file, "w")
self.cp.write(fp)
fp.close()
self.__unlock()
