versions/app/libraries/database.py
2023-07-10 11:58:17 +02:00

136 líneas
3,5 KiB
Python

import os
import sys
import psycopg2
import pdb
class Database():
name = 'database library'
def __init__(self, config_file=None, db=None, db_user=None, db_user_password=None):
self.config_file = "config/db_config.txt"
self.db = self.__get_parameter("db", self.config_file)
self.db_user = self.__get_parameter("db_user", self.config_file)
self.db_user_password = self.__get_parameter("db_user_password", self.config_file)
db_setup = self.__check_dbsetup(self)
if not db_setup:
self.db = input("\nversions database name: ")
self.db_user = input("\nversions database user: ")
self.db_user_password = input("\nversions database user password: ")
self.__create_config(self)
self.__write_config(self)
def get_versions(self):
topten_servers = []
topten_versions = []
topten_users = []
try:
conn = None
conn = psycopg2.connect(database = self.db, user = self.db_user, password = self.db_user_password, host = "/var/run/postgresql", port = "5432")
cur = conn.cursor()
cur.execute("select count(version), version, sum(users) from mau where software='mastodon' and alive group by version order by count(version) desc limit 10")
rows = cur.fetchall()
for row in rows:
topten_servers.append(row[0])
topten_versions.append(row[1])
topten_users.append(row[2])
cur.execute("select count(version) from mau where software='mastodon' and alive")
row = cur.fetchone()
mast_servers = row[0]
cur.execute ("select sum(users) from mau where software='mastodon' and alive")
row = cur.fetchone()
mast_users = row[0]
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return (topten_servers, topten_versions, topten_users, mast_servers, mast_users)
@staticmethod
def __check_dbsetup(self):
db_setup = False
try:
conn = None
conn = psycopg2.connect(database = self.db, user = self.db_user, password = self.db_user_password, host = "/var/run/postgresql", port = "5432")
db_setup = True
except (Exception, psycopg2.DatabaseError) as error:
print(error)
return db_setup
def __get_parameter(self, parameter, config_file):
if not os.path.isfile(config_file):
print(f"File {config_file} not found..")
return
with open( config_file ) as f:
for line in f:
if line.startswith( parameter ):
return line.replace(parameter + ":", "").strip()
print(f"{config_file} Missing parameter {parameter}")
sys.exit(0)
@staticmethod
def __create_config(self):
if not os.path.exists('config'):
os.makedirs('config')
if not os.path.exists(self.config_file):
print(self.config_file + " created!")
with open(self.config_file, 'w'): pass
@staticmethod
def __write_config(self):
with open(self.config_file, 'a') as the_file:
the_file.write(f'db: {self.db}\ndb_user: {self.db_user}\ndb_user_password: {self.db_user_password}')
print(f"adding parameters to {self.config_file}\n")