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# Aura Engine API (https://gitlab.servus.at/aura/engine-api)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import os.path
import sys
import logging
from pathlib import Path
from configparser import ConfigParser
class AuraConfig:
Holds the Aura Configuration as in the file `engine-api.ini`.
"""
ini_path = ""
logger = None
def __init__(self, ini_path="/etc/aura/engine-api.ini"):
"""
Initializes the configuration, defaults to `/etc/aura/engine.ini`.
If this file doesn't exist it uses `./config/engine.ini` from
the project directory.
Args:
ini_path(String): The path to the configuration file `engine-api.ini`
"""
default_ini_path = "%s/config/engine-api.ini" % Path(__file__).parent.parent.parent.absolute()
if ini_path:
config_file = Path(ini_path)
if not config_file.is_file():
ini_path = default_ini_path
else:
ini_path = default_ini_path
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self.ini_path = ini_path
self.logger = logging.getLogger("AuraEngineApi")
self.load_config()
def set(self, key, value):
"""
Setter for some specific config property.
Args:
key (String): key
default (*): value
"""
try:
self.__dict__[key] = int(value)
except:
self.__dict__[key] = str(value)
def get(self, key, default=None):
"""
Getter for some specific config property.
Args:
key (String): key
default (*): value
"""
if key not in self.__dict__:
if default:
self.set(key, default)
else:
self.logger.warning("Key " + key + " not found in configfile " + self.ini_path + "!")
return None
if key == "loglevel":
loglvl = self.__dict__[key]
if loglvl == "debug":
return logging.DEBUG
elif loglvl == "info":
return logging.INFO
elif loglvl == "warning":
return logging.WARNING
elif loglvl == "error":
return logging.ERROR
else:
return logging.CRITICAL
if key == "debug":
return self.__dict__[key].count("y")
return self.__dict__[key]
def load_config(self):
"""
Set config defaults and load settings from file
"""
if not os.path.isfile(self.ini_path):
self.logger.critical(self.ini_path + " not found :(")
sys.exit(1)
# Read the file
f = open(self.ini_path, 'r')
ini_str = f.read()
f.close()
# Parse the values
config_parser = ConfigParser()
try:
config_parser.read_string(ini_str)
except Exception as e:
self.logger.critical("Cannot read " + self.ini_path + "! Reason: " + str(e))
sys.exit(0)
for section in config_parser.sections():
for key, value in config_parser.items(section):
v = config_parser.get(section, key).replace('"', '').strip()
self.set(key, v)
# Custom overrides and defaults
self.set("install_dir", os.path.realpath(__file__ + ".."))
self.set("api_prefix", "/api/v1")
def get_database_uri(self):
"""
Retrieves the database connection string.
"""
db_name = str(self.get("db_name"))
db_user = str(self.get("db_user"))
db_pass = str(self.get("db_pass"))
db_host = str(self.get("db_host"))
if db_type == "mysql":
return "mysql://" + db_user + ":" + db_pass + "@" + db_host + "/" + db_name + "?charset=" + db_charset
elif db_type == "postgresql":
return f"postgresql+psycopg2://{db_user}:{db_pass}@{db_host}/{db_name}?client_encoding={db_charset}"
else:
return f"Error: invalid database type '{db_type}'"