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init-container.py
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init-container.py
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#! /usr/bin/env python3
# -----------------------------------------------------------------------------
# init-container.py Example python skeleton.
# -----------------------------------------------------------------------------
# Import from standard library. https://docs.python.org/3/library/
import argparse
import base64
import configparser
import filecmp
import json
import linecache
import logging
import os
import shutil
import signal
import string
import sys
import time
import urllib
import urllib.request
from shutil import which
from pathlib import Path
from urllib.parse import urlparse, urlunparse
# Determine "Major" version of Senzing SDK.
senzing_sdk_version_major = None
# Import from Senzing.
try:
from senzing import G2Config, G2ConfigMgr, G2ModuleException
senzing_sdk_version_major = 3
except Exception:
# Fall back to pre-Senzing-Python-SDK style of imports.
try:
from G2Config import G2Config
from G2ConfigMgr import G2ConfigMgr
from G2Exception import G2ModuleException
senzing_sdk_version_major = 2
except Exception:
senzing_sdk_version_major = None
# Metadata
__all__ = []
__version__ = "2.0.7" # See https://www.python.org/dev/peps/pep-0396/
__date__ = '2019-07-16'
__updated__ = '2023-06-15'
SENZING_PRODUCT_ID = "5007" # See https://github.com/senzing-garage/knowledge-base/blob/main/lists/senzing-product-ids.md
log_format = '%(asctime)s %(message)s'
# Working with bytes.
KILOBYTES = 1024
MEGABYTES = 1024 * KILOBYTES
GIGABYTES = 1024 * MEGABYTES
# Lists from https://www.ietf.org/rfc/rfc1738.txt
safe_character_list = ['$', '-', '_', '.', '+', '!', '*', '(', ')', ',', '"'] + list(string.ascii_letters)
unsafe_character_list = ['"', '<', '>', '#', '%', '{', '}', '|', '\\', '^', '~', '[', ']', '`']
reserved_character_list = [';', ',', '/', '?', ':', '@', '=', '&']
# The "configuration_locator" describes where configuration variables are in:
# 1) Command line options, 2) Environment variables, 3) Configuration files, 4) Default values
configuration_locator = {
"cloud": {
"default": None,
"env": "SENZING_CLOUD",
"cli": "cloud"
},
"data_dir": {
"default": "/opt/senzing/data",
"env": "SENZING_DATA_DIR",
"cli": "data-dir"
},
"db2dsdriver_cfg_contents": {
"default": None,
"env": "SENZING_OPT_IBM_DB2_CLIDRIVER_CFG_DB2DSDRIVER_CFG_CONTENTS",
"cli": "db2dsdriver-cfg-contents"
},
"debug": {
"default": False,
"env": "SENZING_DEBUG",
"cli": "debug"
},
"delay_in_seconds": {
"default": 0,
"env": "SENZING_DELAY_IN_SECONDS",
"cli": "delay-in-seconds"
},
"etc_dir": {
"default": "/etc/opt/senzing",
"env": "SENZING_ETC_DIR",
"cli": "etc-dir"
},
"enable_db2": {
"default": False,
"env": "SENZING_ENABLE_DB2",
"cli": "enable-db2"
},
"enable_mssql": {
"default": False,
"env": "SENZING_ENABLE_MSSQL",
"cli": "enable-mssql"
},
"enable_mysql": {
"default": False,
"env": "SENZING_ENABLE_MYSQL",
"cli": "enable-mysql"
},
"enable_postgresql": {
"default": False,
"env": "SENZING_ENABLE_POSTGRESQL",
"cli": "enable-postgresql"
},
"engine_configuration_json": {
"default": None,
"env": "SENZING_ENGINE_CONFIGURATION_JSON",
"cli": "engine-configuration-json"
},
"g2_config_gtc": {
"default": None,
"env": "SENZING_G2CONFIG_GTC",
"cli": "g2config-gtc"
},
"g2_database_url": {
"default": "sqlite3://na:na@/var/opt/senzing/sqlite/G2C.db",
"env": "SENZING_DATABASE_URL",
"cli": "database-url"
},
"g2_database_url_raw": {
"default": None,
"env": "SENZING_DATABASE_URL_RAW",
"cli": "database-url-raw"
},
"g2_dir": {
"default": "/opt/senzing/g2",
"env": "SENZING_G2_DIR",
"cli": "g2-dir"
},
"generate_ssl_keystore": {
"default": False,
"env": "SENZING_GENERATE_SSL_KEYSTORE",
"cli": "generate-ssl-keystore"
},
"governor_url": {
"default": "https://raw.githubusercontent.com/Senzing/governor-postgresql-transaction-id/main/senzing_governor.py",
"env": "SENZING_GOVERNOR_URL",
"cli": "governor-url"
},
"gid": {
"default": 1001,
"env": "SENZING_GID",
"cli": "gid"
},
"sleep_time_in_seconds": {
"default": 0,
"env": "SENZING_SLEEP_TIME_IN_SECONDS",
"cli": "sleep-time-in-seconds"
},
"license_base64_encoded": {
"default": None,
"env": "SENZING_LICENSE_BASE64_ENCODED",
"cli": "license-base64-encoded"
},
"mssql_odbc_ini_contents": {
"default": None,
"env": "SENZING_OPT_MICROSOFT_MSODBCSQL17_ETC_ODBC_INI_CONTENTS",
"cli": "mssql-odbc-ini-contents"
},
"stackname": {
"default": None,
"env": "SENZING_STACK_NAME",
},
"subcommand": {
"default": None,
"env": "SENZING_SUBCOMMAND",
},
"uid": {
"default": 1001,
"env": "SENZING_UID",
"cli": "uid"
},
"update_ini_files": {
"default": False,
"env": "SENZING_UPDATE_INI_FILES",
"cli": "update-ini-files"
},
"var_dir": {
"default": "/var/opt/senzing",
"env": "SENZING_VAR_DIR",
"cli": "var-dir"
},
}
# Enumerate keys in 'configuration_locator' that should not be printed to the log.
keys_to_redact = [
"engine_configuration_json",
"g2_database_url",
"g2_database_url_raw",
]
# Global cached objects
g2_configuration_manager_singleton = None
g2_config_singleton = None
# -----------------------------------------------------------------------------
# Define argument parser
# -----------------------------------------------------------------------------
def get_parser():
''' Parse commandline arguments. '''
subcommands = {
'debug-database-url': {
"help": 'Show parsed database URL. Does not modify system.',
"argument_aspects": ["common"],
},
'initialize': {
"help": 'Initialize a newly installed Senzing',
"argument_aspects": ["common", "senzing-volumes", "enable", "keystore", "uidgid"],
},
'initialize-database': {
"help": 'Initialize only the database. This is a subset of the full initialize sub-commmand',
"argument_aspects": ["common", "senzing-volumes"],
"arguments": {
"--update-ini-files": {
"dest": "update_ini_files",
"action": "store_true",
"help": "Update INI files: G2Module.ini, (SENZING_UPDATE_INI_FILES) Default: False"
},
},
},
'initialize-files': {
"help": 'Initialize only the files. This is a subset of the full initialize sub-commmand',
"argument_aspects": ["common", "senzing-volumes", "enable", "keystore", "uidgid"],
},
'sleep': {
"help": 'Do nothing but sleep. For Docker testing.',
"arguments": {
"--sleep-time-in-seconds": {
"dest": "sleep_time_in_seconds",
"metavar": "SENZING_SLEEP_TIME_IN_SECONDS",
"help": "Sleep time in seconds. DEFAULT: 0 (infinite)"
},
},
},
'version': {
"help": 'Print version of program.',
},
'docker-acceptance-test': {
"help": 'For Docker acceptance testing.',
},
}
# Define argument_aspects.
argument_aspects = {
"common": {
"--cloud": {
"dest": "cloud",
"metavar": "SENZING_CLOUD",
"help": "Cloud provider in use. Default: none"
},
"--db2dsdriver-cfg-contents": {
"dest": "db2dsdriver_cfg_contents",
"metavar": "SENZING_OPT_IBM_DB2_CLIDRIVER_CFG_DB2DSDRIVER_CFG_CONTENTS",
"help": "Contents of the Db2 db2dsdriver.cfg file for advanced Db2 configurations or Senzing Clustering. Default: none"
},
"--database-url": {
"dest": "g2_database_url",
"metavar": "SENZING_DATABASE_URL",
"help": "Information for connecting to database."
},
"--debug": {
"dest": "debug",
"action": "store_true",
"help": "Enable debugging. (SENZING_DEBUG) Default: False"
},
"--delay-in-seconds": {
"dest": "delay_in_seconds",
"metavar": "SENZING_DELAY_IN_SECONDS",
"help": "Delay before processing in seconds. DEFAULT: 0"
},
"--engine-configuration-json": {
"dest": "engine_configuration_json",
"metavar": "SENZING_ENGINE_CONFIGURATION_JSON",
"help": "Advanced Senzing engine configuration. Default: none"
},
"--generate-ssl-keystore": {
"dest": "generate_ssl_keystore",
"action": "store_true",
"help": "Generate SSL Keystore files. (SENZING_GENERATE_SSL_KEYSTORE) Default: False"
},
"--mssql-odbc-ini-contents": {
"dest": "mssql_odbc_ini_contents",
"metavar": "SENZING_OPT_MICROSOFT_MSODBCSQL17_ETC_ODBC_INI_CONTENTS",
"help": "Contents of the odbc.ini file when used with mssql. Default: none"
},
"--stackname": {
"dest": "stackname",
"metavar": "SENZING_STACK_NAME",
"help": "AWS cloudformation stack name. Default: none"
}
},
"enable": {
"--enable-db2": {
"dest": "enable_db2",
"action": "store_true",
"help": "Enable db2 database. (SENZING_ENABLE_DB2) Default: False"
},
"--enable-mssql": {
"dest": "enable_mssql",
"action": "store_true",
"help": "Enable MS SQL database. (SENZING_ENABLE_MSSQL) Default: False"
},
"--enable-mysql": {
"dest": "enable_mysql",
"action": "store_true",
"help": "Enable MySQL database. (SENZING_ENABLE_MYSQL) Default: False"
},
"--enable-postgresql": {
"dest": "enable_postgresql",
"action": "store_true",
"help": "Enable PostgreSQL database. (SENZING_ENABLE_POSTGRESQL) Default: False"
},
},
"senzing-volumes": {
"--etc-dir": {
"dest": "etc_dir",
"metavar": "SENZING_ETC_DIR",
"help": "Location of senzing etc directory. Default: /etc/opt/senzing"
},
"--g2-dir": {
"dest": "g2_dir",
"metavar": "SENZING_G2_DIR",
"help": "Location of senzing g2 directory. Default: /opt/senzing/g2"
},
"--data-dir": {
"dest": "data_dir",
"metavar": "SENZING_DATA_DIR",
"help": "Location of Senzing's support. Default: /opt/senzing/g2/data"
},
"--var-dir": {
"dest": "var_dir",
"metavar": "SENZING_VAR_DIR",
"help": "Location of senzing var directory. Default: /var/opt/senzing"
},
},
"uidgid": {
"--gid": {
"dest": "gid",
"metavar": "SENZING_GID",
"help": "GID for file ownership. Default: 1001"
},
"--uid": {
"dest": "uid",
"metavar": "SENZING_UID",
"help": "UID for file ownership. Default: 1001"
},
},
}
# Augment "subcommands" variable with arguments specified by aspects.
for subcommand, subcommand_value in subcommands.items():
if 'argument_aspects' in subcommand_value:
for aspect in subcommand_value['argument_aspects']:
if 'arguments' not in subcommands[subcommand]:
subcommands[subcommand]['arguments'] = {}
arguments = argument_aspects.get(aspect, {})
for argument, argument_value in arguments.items():
subcommands[subcommand]['arguments'][argument] = argument_value
parser = argparse.ArgumentParser(prog="init-container.py", description="Initialize Senzing installation. For more information, see https://github.com/senzing-garage/docker-init-container")
subparsers = parser.add_subparsers(dest='subcommand', help='Subcommands (SENZING_SUBCOMMAND):')
for subcommand_key, subcommand_values in subcommands.items():
subcommand_help = subcommand_values.get('help', "")
subcommand_arguments = subcommand_values.get('arguments', {})
subparser = subparsers.add_parser(subcommand_key, help=subcommand_help)
for argument_key, argument_values in subcommand_arguments.items():
subparser.add_argument(argument_key, **argument_values)
return parser
# -----------------------------------------------------------------------------
# Message handling
# -----------------------------------------------------------------------------
# 1xx Informational (i.e. logging.info())
# 3xx Warning (i.e. logging.warning())
# 5xx User configuration issues (either logging.warning() or logging.err() for Client errors)
# 7xx Internal error (i.e. logging.error for Server errors)
# 9xx Debugging (i.e. logging.debug())
MESSAGE_INFO = 100
MESSAGE_WARN = 300
MESSAGE_ERROR = 700
MESSAGE_DEBUG = 900
message_dictionary = {
"100": "senzing-" + SENZING_PRODUCT_ID + "{0:04d}I",
"151": "{0} - Changing permissions from {1:o} to {2:o}",
"152": "{0} - Changing owner from {1} to {2}",
"153": "{0} - Changing group from {1} to {2}",
"154": "{0} - Creating file by copying {1}",
"155": "{0} - Deleting",
"156": "{0} - Modified. {1}",
"157": "{0} - Creating file",
"158": "{0} - Creating symlink to {1}",
"159": "{0} - Downloading from {1}",
"160": "{0} - Copying {1} and modifying",
"161": "{0} - Backup of current {1}",
"162": "{0} - Creating directory",
"163": "{0} - Configuring for Senzing database cluster based on SENZING_ENGINE_CONFIGURATION_JSON",
"170": "Created new default config in SYS_CFG having ID {0}",
"171": "Default config in SYS_CFG already exists having ID {0}",
"180": "{0} - Postgresql detected. Installing governor from {1}",
"181": "{0} - Postgresql detected. Using existing governor; no change.",
"182": "Initializing for SQLite",
"183": "Initializing for Db2",
"184": "Initializing for MS SQL",
"185": "Initializing for MySQL",
"186": "Initializing for PostgreSQL",
"187": "{0} - Directory does not exist; no change.",
"188": "{0} - Cannot write to read-only filesystem; no change.",
"292": "Configuration change detected. Old: {0} New: {1}",
"293": "For information on warnings and errors, see https://github.com/senzing-garage/stream-loader#errors",
"294": "Version: {0} Updated: {1}",
"295": "Sleeping infinitely.",
"296": "Sleeping {0} seconds.",
"297": "Enter {0}",
"298": "Exit {0}",
"299": "{0}",
"300": "senzing-" + SENZING_PRODUCT_ID + "{0:04d}W",
"301": "Could not download the senzing postgresql governor from {0}. Ignore this on air gapped systems. Exception details: {1}",
"499": "{0}",
"500": "senzing-" + SENZING_PRODUCT_ID + "{0:04d}E",
"510": "{0} - File is missing.",
"695": "Unknown database scheme '{0}' in database url '{1}'",
"696": "Bad SENZING_SUBCOMMAND: {0}.",
"697": "No processing done.",
"698": "Program terminated with error.",
"699": "{0}",
"700": "senzing-" + SENZING_PRODUCT_ID + "{0:04d}E",
"701": "Error '{0}' caused by {1} error '{2}'",
"702": "Could not create '{0}' directory. Error: {1}",
"703": "SENZING_ENGINE_CONFIGURATION_JSON specified but not SENZING_OPT_IBM_DB2_CLIDRIVER_CFG_DB2DSDRIVER_CFG_CONTENTS. If the Senzing engine config is specified, the contents of db2dsdriver.cfg must also be provided.",
"704": "SENZING_ENGINE_CONFIGURATION_JSON specified but not SENZING_OPT_MICROSOFT_MSODBCSQL17_ETC_ODBC_INI_CONTENTS. If the Senzing engine config is specified, the contents of odbc.ini must also be provided.",
"801": "SENZING_ENGINE_CONFIGURATION_JSON contains multiple database schemes: {0}",
"879": "Senzing SDK was not imported.",
"886": "G2Engine.addRecord() bad return code: {0}; JSON: {1}",
"888": "G2Engine.addRecord() G2ModuleNotInitialized: {0}; JSON: {1}",
"889": "G2Engine.addRecord() G2ModuleGenericException: {0}; JSON: {1}",
"890": "G2Engine.addRecord() Exception: {0}; JSON: {1}",
"891": "Original and new database URLs do not match. Original URL: {0}; Reconstructed URL: {1}",
"892": "Could not initialize G2Product with '{0}'. Error: {1}",
"893": "Could not initialize G2Hasher with '{0}'. Error: {1}",
"894": "Could not initialize G2Diagnostic with '{0}'. Error: {1}",
"895": "Could not initialize G2Audit with '{0}'. Error: {1}",
"896": "Could not initialize G2ConfigMgr with '{0}'. Error: {1}",
"897": "Could not initialize G2Config with '{0}'. Error: {1}",
"898": "Could not initialize G2Engine with '{0}'. Error: {1}",
"899": "{0}",
"900": "senzing-" + SENZING_PRODUCT_ID + "{0:04d}D",
"901": "{0} will not be modified",
"902": "{0} - Was not created because there is no {1}",
"950": "Enter function: {0}",
"951": "Exit function: {0}",
"998": "Debugging enabled.",
"999": "{0}",
}
def message(index, *args):
index_string = str(index)
template = message_dictionary.get(index_string, "No message for index {0}.".format(index_string))
return template.format(*args)
def message_generic(generic_index, index, *args):
return "{0} {1}".format(message(generic_index, index), message(index, *args))
def message_info(index, *args):
return message_generic(MESSAGE_INFO, index, *args)
def message_warning(index, *args):
return message_generic(MESSAGE_WARN, index, *args)
def message_error(index, *args):
return message_generic(MESSAGE_ERROR, index, *args)
def message_debug(index, *args):
return message_generic(MESSAGE_DEBUG, index, *args)
def get_exception():
''' Get details about an exception. '''
exception_type, exception_object, traceback = sys.exc_info()
frame = traceback.tb_frame
line_number = traceback.tb_lineno
filename = frame.f_code.co_filename
linecache.checkcache(filename)
line = linecache.getline(filename, line_number, frame.f_globals)
return {
"filename": filename,
"line_number": line_number,
"line": line.strip(),
"exception": exception_object,
"type": exception_type,
"traceback": traceback,
}
# -----------------------------------------------------------------------------
# Database URL parsing
# -----------------------------------------------------------------------------
def translate(mapping, astring):
new_string = str(astring)
for key, value in mapping.items():
new_string = new_string.replace(key, value)
return new_string
def get_unsafe_characters(astring):
result = []
for unsafe_character in unsafe_character_list:
if unsafe_character in astring:
result.append(unsafe_character)
return result
def get_safe_characters(astring):
result = []
for safe_character in safe_character_list:
if safe_character not in astring:
result.append(safe_character)
return result
def parse_database_url(original_senzing_database_url):
''' Given a canonical database URL, decompose into URL components. '''
result = {}
# Get the value of SENZING_DATABASE_URL environment variable.
senzing_database_url = original_senzing_database_url
# Create lists of safe and unsafe characters.
unsafe_characters = get_unsafe_characters(senzing_database_url)
safe_characters = get_safe_characters(senzing_database_url)
# Detect an error condition where there are not enough safe characters.
if len(unsafe_characters) > len(safe_characters):
logging.error(message_error(730, unsafe_characters, safe_characters))
return result
# Perform translation.
# This makes a map of safe character mapping to unsafe characters.
# "senzing_database_url" is modified to have only safe characters.
translation_map = {}
safe_characters_index = 0
for unsafe_character in unsafe_characters:
safe_character = safe_characters[safe_characters_index]
safe_characters_index += 1
translation_map[safe_character] = unsafe_character
senzing_database_url = senzing_database_url.replace(unsafe_character, safe_character)
# Parse "translated" URL.
parsed = urlparse(senzing_database_url)
schema = parsed.path.strip('/')
# Construct result.
result = {
'scheme': translate(translation_map, parsed.scheme),
'netloc': translate(translation_map, parsed.netloc),
'path': translate(translation_map, parsed.path),
'params': translate(translation_map, parsed.params),
'query': translate(translation_map, parsed.query),
'fragment': translate(translation_map, parsed.fragment),
'username': translate(translation_map, parsed.username),
'password': translate(translation_map, parsed.password),
'hostname': translate(translation_map, parsed.hostname),
'port': translate(translation_map, parsed.port),
'schema': translate(translation_map, schema),
}
# For safety, compare original URL with reconstructed URL.
url_parts = [
result.get('scheme'),
result.get('netloc'),
result.get('path'),
result.get('params'),
result.get('query'),
result.get('fragment'),
]
test_senzing_database_url = urlunparse(url_parts)
if test_senzing_database_url != original_senzing_database_url:
logging.warning(message_warning(891, original_senzing_database_url, test_senzing_database_url))
# Return result.
return result
def parse_database_url_scheme(senzing_database_url):
return senzing_database_url.split(':')[0]
# -----------------------------------------------------------------------------
# Configuration
# -----------------------------------------------------------------------------
def get_g2_database_url_raw(generic_database_url):
''' Given a canonical database URL, transform to the specific URL. '''
result = ""
parsed_database_url = parse_database_url(generic_database_url)
scheme = parsed_database_url.get('scheme')
# Format database URL for a particular database.
if scheme in ['mysql']:
result = "{scheme}://{username}:{password}@{hostname}:{port}/?schema={schema}".format(**parsed_database_url)
elif scheme in ['postgresql']:
result = "{scheme}://{username}:{password}@{hostname}:{port}:{schema}/".format(**parsed_database_url)
elif scheme in ['db2']:
result = "{scheme}://{username}:{password}@{schema}".format(**parsed_database_url)
elif scheme in ['sqlite3']:
result = "{scheme}://{netloc}{path}".format(**parsed_database_url)
elif scheme in ['mssql']:
result = "{scheme}://{username}:{password}@{schema}".format(**parsed_database_url)
else:
logging.error(message_error(695, scheme, generic_database_url))
return result
def get_configuration(args):
''' Order of precedence: CLI, OS environment variables, INI file, default. '''
result = {}
# Copy default values into configuration dictionary.
for key, value in list(configuration_locator.items()):
result[key] = value.get('default', None)
# "Prime the pump" with command line args. This will be done again as the last step.
for key, value in list(args.__dict__.items()):
new_key = key.format(subcommand.replace('-', '_'))
if value:
result[new_key] = value
# Copy OS environment variables into configuration dictionary.
for key, value in list(configuration_locator.items()):
os_env_var = value.get('env', None)
if os_env_var:
os_env_value = os.getenv(os_env_var, None)
if os_env_value:
result[key] = os_env_value
# Copy 'args' into configuration dictionary.
for key, value in list(args.__dict__.items()):
new_key = key.format(subcommand.replace('-', '_'))
if value:
result[new_key] = value
# Add program information.
result['program_version'] = __version__
result['program_updated'] = __updated__
result['senzing_sdk_version_major'] = senzing_sdk_version_major
# Special case: subcommand from command-line
if args.subcommand:
result['subcommand'] = args.subcommand
# Special case: Change boolean strings to booleans.
booleans = [
'debug',
'enable_db2'
'enable_mssql',
'enable_mysql',
'enable_postgresql',
'generate_ssl_keystore',
'update_ini_files',
]
for boolean in booleans:
boolean_value = result.get(boolean)
if isinstance(boolean_value, str):
boolean_value_lower_case = boolean_value.lower()
if boolean_value_lower_case in ['true', '1', 't', 'y', 'yes']:
result[boolean] = True
else:
result[boolean] = False
# Special case: Change integer strings to integers.
integers = [
'delay_in_seconds',
'sleep_time_in_seconds',
]
for integer in integers:
integer_string = result.get(integer)
result[integer] = int(integer_string)
# Special case: Tailored database URL
if not result['g2_database_url_raw']:
result['g2_database_url_raw'] = get_g2_database_url_raw(result.get("g2_database_url"))
# Add database components to configuration.
database_url = result.get('g2_database_url')
parsed_database_url = parse_database_url(database_url)
database_url_components = ['scheme', 'path', 'params', 'query', 'fragment', 'username', 'hostname', 'port', 'schema']
for database_url_component in database_url_components:
if parsed_database_url.get(database_url_component):
result["database-{0}".format(database_url_component)] = parsed_database_url.get(database_url_component)
return result
def validate_configuration(config):
''' Check aggregate configuration from commandline options, environment variables, config files, and defaults. '''
user_warning_messages = []
user_error_messages = []
# Perform subcommand specific checking.
subcommand = config.get('subcommand')
if subcommand in ['task1', 'task2']:
if not config.get('senzing_dir'):
user_error_messages.append(message_error(414))
# Log warning messages.
for user_warning_message in user_warning_messages:
logging.warning(user_warning_message)
# Log error messages.
for user_error_message in user_error_messages:
logging.error(user_error_message)
# Log where to go for help.
if len(user_warning_messages) > 0 or len(user_error_messages) > 0:
logging.info(message_info(293))
# If there are error messages, exit.
if len(user_error_messages) > 0:
exit_error(597)
def redact_configuration(config):
''' Return a shallow copy of config with certain keys removed. '''
result = config.copy()
for key in keys_to_redact:
result.pop(key)
return result
# -----------------------------------------------------------------------------
# Utility functions
# -----------------------------------------------------------------------------
def create_signal_handler_function(args):
''' Tricky code. Uses currying technique. Create a function for signal handling.
that knows about "args".
'''
def result_function(signal_number, frame):
logging.info(message_info(298, args))
sys.exit(0)
return result_function
def bootstrap_signal_handler(signal, frame):
sys.exit(0)
def delay(config):
delay_in_seconds = config.get('delay_in_seconds')
if delay_in_seconds > 0:
logging.info(message_info(296, delay_in_seconds))
time.sleep(delay_in_seconds)
def entry_template(config):
''' Format of entry message. '''
debug = config.get("debug", False)
config['start_time'] = time.time()
if debug:
final_config = config
else:
final_config = redact_configuration(config)
config_json = json.dumps(final_config, sort_keys=True)
return message_info(297, config_json)
def exit_template(config):
''' Format of exit message. '''
debug = config.get("debug", False)
stop_time = time.time()
config['stop_time'] = stop_time
config['elapsed_time'] = stop_time - config.get('start_time', stop_time)
if debug:
final_config = config
else:
final_config = redact_configuration(config)
config_json = json.dumps(final_config, sort_keys=True)
return message_info(298, config_json)
def exit_error(index, *args):
''' Log error message and exit program. '''
logging.error(message_error(index, *args))
logging.error(message_error(698))
sys.exit(1)
def exit_silently():
''' Exit program. '''
sys.exit(1)
# -----------------------------------------------------------------------------
# Class: G2Client
# -----------------------------------------------------------------------------
class G2Initializer:
def __init__(self, g2_configuration_manager, g2_config):
self.g2_config = g2_config
self.g2_configuration_manager = g2_configuration_manager
def create_default_config_id(self):
''' Initialize the G2 database. '''
# Determine of a default/initial G2 configuration already exists.
default_config_id_bytearray = bytearray()
try:
self.g2_configuration_manager.getDefaultConfigID(default_config_id_bytearray)
except Exception as err:
raise Exception("G2ConfigMgr.getDefaultConfigID({0}) failed".format(default_config_id_bytearray)) from err
# If a default configuration exists, there is nothing more to do.
if default_config_id_bytearray:
logging.info(message_info(171, default_config_id_bytearray.decode()))
return None
# If there is no default configuration, create one in the 'configuration_bytearray' variable.
config_handle = self.g2_config.create()
configuration_bytearray = bytearray()
try:
self.g2_config.save(config_handle, configuration_bytearray)
except Exception as err:
raise Exception("G2Confg.save({0}, {1}) failed".format(config_handle, configuration_bytearray)) from err
self.g2_config.close(config_handle)
# Save configuration JSON into G2 database.
config_comment = "Initial configuration."
new_config_id = bytearray()
try:
self.g2_configuration_manager.addConfig(configuration_bytearray.decode(), config_comment, new_config_id)
except Exception as err:
raise Exception("G2ConfigMgr.addConfig({0}, {1}, {2}) failed".format(configuration_bytearray.decode(), config_comment, new_config_id)) from err
# Set the default configuration ID.
try:
self.g2_configuration_manager.setDefaultConfigID(new_config_id)
except Exception as err:
raise Exception("G2ConfigMgr.setDefaultConfigID({0}) failed".format(new_config_id)) from err
return new_config_id
# -----------------------------------------------------------------------------
# worker functions
# -----------------------------------------------------------------------------
def change_directory_ownership(config):
etc_dir = config.get("etc_dir")
var_dir = config.get("var_dir")
uid = config.get("uid")
gid = config.get("gid")
directories = [
etc_dir,
var_dir,
"/opt/microsoft/msodbcsql17/etc/",
"/opt/IBM/db2/clidriver/cfg/"
]
for directory in directories:
if os.path.isdir(directory):
actual_uid = os.stat(directory).st_uid
actual_gid = os.stat(directory).st_gid
if (actual_uid, actual_gid) != (uid, gid):
logging.info(message_info(152, directory, "{0}:{1}".format(actual_uid, actual_gid), "{0}:{1}".format(uid, gid)))
os.chown(directory, int(uid), int(gid))
for root, dirs, files in os.walk(directory):
for adir in dirs:
dirname = os.path.join(root, adir)
actual_uid = os.stat(dirname).st_uid
actual_gid = os.stat(dirname).st_gid
if (actual_uid, actual_gid) != (uid, gid):
logging.info(message_info(152, dirname, "{0}:{1}".format(actual_uid, actual_gid), "{0}:{1}".format(uid, gid)))
os.chown(dirname, int(uid), int(gid))
for file in files:
filename = os.path.join(root, file)
actual_uid = os.stat(filename).st_uid
actual_gid = os.stat(filename).st_gid
if (actual_uid, actual_gid) != (uid, gid):
logging.info(message_info(152, filename, "{0}:{1}".format(actual_uid, actual_gid), "{0}:{1}".format(uid, gid)))
os.chown(filename, int(uid), int(gid))
def change_file_permissions(config):
# Pull information from config.
etc_dir = config.get("etc_dir")
var_dir = config.get("var_dir")
uid = config.get("uid")
gid = config.get("gid")
# Identify file changes.
files = [
{
"filename": "{0}/G2Module.ini".format(etc_dir),
"permissions": 0o750,
"uid": uid,
"gid": gid,
},
{
"filename": "{0}/G2Project.ini".format(etc_dir),
"permissions": 0o750,
"uid": uid,
"gid": gid,
},
{
"filename": "{0}/sqlite".format(var_dir),
"permissions": 0o750,
"uid": uid,
"gid": gid,
},
{
"filename": "{0}/sqlite/G2C.db".format(var_dir),
"permissions": 0o750,
"uid": uid,