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Added Database management Class

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spla 2023-01-05 01:08:04 +01:00
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import os
import sys
import psycopg2
from psycopg2 import sql
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
import uuid
from datetime import datetime
import pytz
import pdb
tz = pytz.timezone('Europe/Madrid')
class Database():
name = 'fediverse database library'
def __init__(self, config_file=None, fediverse_db=None, fediverse_db_user=None, fediverse_db_user_password=None):
self.config_file = "config/db_config.txt"
self.fediverse_db = self.__get_parameter("fediverse_db", self.config_file)
self.fediverse_db_user = self.__get_parameter("fediverse_db_user", self.config_file)
self.fediverse_db_user_password = self.__get_parameter("fediverse_db_user_password", self.config_file)
db_setup = self.__check_dbsetup(self)
if not db_setup:
self.fediverse_db = input("\nFediverse database name: ")
self.fediverse_db_user = input("\nFediverse database user: ")
self.fediverse_db_user_password = input("\nFediverse database user password: ")
self.__createdb(self)
self.__create_config(self)
self.__write_config(self)
def write_server(self, server, federated_with, now):
now = datetime.now()
insert_sql = "INSERT INTO world(server, federated_with, updated_at, saved_at, checked) VALUES(%s,%s,%s,%s,%s) ON CONFLICT DO NOTHING"
conn = None
try:
conn = psycopg2.connect(database = self.fediverse_db, user = self.fediverse_db_user, password = self.fediverse_db_user_password, host = "/var/run/postgresql", port = "6432")
cur = conn.cursor()
cur.execute(insert_sql, (server, federated_with, now, now, 'f'))
print(f'writing {server} to world database')
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def save_time(self, program, start, finish):
insert_sql = "INSERT INTO execution_time(program, start, finish) VALUES(%s,%s,%s) ON CONFLICT DO NOTHING"
conn = None
try:
conn = psycopg2.connect(database = self.fediverse_db, user = self.fediverse_db_user, password = self.fediverse_db_user_password, host = "/var/run/postgresql", port = "6432")
cur = conn.cursor()
cur.execute(insert_sql, (program, start, finish,))
cur.execute("UPDATE execution_time SET start=(%s), finish=(%s) where program=(%s)", (start, finish, program))
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def write_api(self, server, software, users, alive, api, soft_version):
now = datetime.now()
insert_sql = "INSERT INTO fediverse(server, updated_at, software, users, alive, users_api, version) VALUES(%s,%s,%s,%s,%s,%s,%s) ON CONFLICT DO NOTHING"
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
print(f'Writing {server} nodeinfo data...')
cur.execute(insert_sql, (server, now, software, users, alive, api, soft_version))
cur.execute(
"UPDATE fediverse SET updated_at=(%s), software=(%s), users=(%s), alive=(%s), users_api=(%s), version=(%s) where server=(%s)",
(now, software, users, alive, api, soft_version, server)
)
cur.execute("UPDATE world SET checked='t' where server=(%s)", (server,))
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def get_world_servers(self):
world_servers = []
try:
conn = None
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
# get world servers list
cur.execute("select server from world where checked='f'")
rows = cur.fetchall()
for row in rows:
world_servers.append(row[0])
cur.close()
print("Remaining servers: " + str(len(world_servers)))
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return world_servers
def get_last_checked_servers(self):
# get last checked servers from fediverse DB
alive_servers = []
try:
conn = None
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
# get world servers list
cur.execute("select server from world where server in (select server from fediverse where users_api != '')")
rows = cur.fetchall()
for row in rows:
alive_servers.append(row[0])
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return alive_servers
def set_world_servers_check_to_false(self):
# set all world servers's checked column to False
try:
conn = None
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute("UPDATE world SET checked='f'")
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def delete_dead_servers(self):
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute("select server from fediverse where downs > '14' and not alive and now() - first_checked_at > interval '7 days'")
rows = cur.fetchall()
for row in rows:
print(f'Deleting server {row[0]}...')
cur.execute("delete from fediverse where server=(%s)", (row[0],))
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def write_alive_server(self, server, software, soft_version, alive, api, users, downs, first_checked_at, mau):
now = datetime.now()
insert_sql = "INSERT INTO fediverse(server, users, updated_at, software, alive, users_api, version, first_checked_at, last_checked_at, downs, mau) VALUES(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s) ON CONFLICT DO NOTHING"
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute(insert_sql, (server, users, now, software, alive, api, soft_version, now, now, downs, mau))
if first_checked_at != None:
cur.execute("UPDATE fediverse SET users=(%s), updated_at=(%s), software=(%s), alive=(%s), users_api=(%s), version=(%s), last_checked_at=(%s), downs=(%s), mau=(%s) where server=(%s)", (users, now, software, alive, api, soft_version, now, downs, mau, server))
else:
cur.execute("UPDATE fediverse SET users=(%s), updated_at=(%s), software=(%s), alive=(%s), users_api=(%s), version=(%s), first_checked_at=(%s), last_checked_at=(%s), downs=(%s), mau=(%s) where server=(%s)", (users, now, software, alive, api, soft_version, now, now, downs, mau, server))
cur.execute("UPDATE world SET checked='t' where server=(%s)", (server,))
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def write_not_alive_server(self, server, software, soft_version, alive, api, users, downs, first_checked_at):
now = datetime.now()
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
if first_checked_at != None:
cur.execute("UPDATE fediverse SET updated_at=(%s), alive=(%s), downs=(%s) where server=(%s)", (now, alive, downs, server))
else:
cur.execute("UPDATE fediverse SET updated_at=(%s), alive=(%s), first_checked_at=(%s), downs=(%s) where server=(%s)", (now, alive, now, downs, server))
cur.execute("UPDATE world SET checked='f' where server=(%s)", (server,))
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def write_blocked_software(self, server, software, soft_version, alive, api, users, downs, first_checked_at):
now = datetime.now()
insert_sql = "INSERT INTO blocked(server, users, updated_at, software, alive, users_api, version, first_checked_at, last_checked_at, downs) VALUES(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s) ON CONFLICT DO NOTHING"
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute(insert_sql, (server, users, now, software, alive, api, soft_version, now, now, downs))
if first_checked_at != None:
cur.execute("UPDATE blocked SET users=(%s), updated_at=(%s), software=(%s), alive=(%s), users_api=(%s), version=(%s), last_checked_at=(%s), downs=(%s) where server=(%s)", (users, now, software, alive, api, soft_version, now, downs, server))
else:
cur.execute("UPDATE blocked SET users=(%s), updated_at=(%s), software=(%s), alive=(%s), users_api=(%s), version=(%s), first_checked_at=(%s), last_checked_at=(%s), downs=(%s) where server=(%s)", (users, now, software, alive, api, soft_version, now, now, downs, server))
cur.execute("UPDATE world SET checked='t' where server=(%s)", (server,))
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def soft_totals(self):
# get current total servers and users, get users from every software
now = datetime.now()
gettotals_sql = "select count(server), sum(users), sum(mau) from fediverse where alive"
get_soft_totals_sql = "select software, sum(users) as users, sum(mau) as mau, count(server) as servers from fediverse where users != 0 and mau is not null and alive group by software order by mau desc"
soft_total_project = []
soft_total_users = []
soft_total_mau = []
soft_total_servers = []
try:
conn = None
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute(gettotals_sql)
row = cur.fetchone()
total_servers = row[0]
total_users = row[1]
total_mau = row[2]
cur.execute(get_soft_totals_sql)
rows = cur.fetchall()
for row in rows:
soft_total_project.append(row[0])
soft_total_users.append(row[1])
soft_total_mau.append(row[2])
soft_total_servers.append(row[3])
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return (soft_total_project, soft_total_users, soft_total_mau, soft_total_servers, total_servers, total_users, total_mau)
def last_values(self, total_servers, total_users, total_mau):
# get last check values and write current total ones
now = datetime.now()
evo_servers = 0
evo_users = 0
evo_mau = 0
select_sql = "select total_servers, total_users, total_mau from totals order by datetime desc limit 1"
insert_sql = "INSERT INTO totals(datetime, total_servers, total_users, total_mau) VALUES(%s,%s,%s,%s)"
try:
conn = None
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute(select_sql)
row = cur.fetchone()
if row is not None:
servers_before = row[0]
users_before = row[1]
mau_before = row[2]
else:
servers_before = 0
users_before = 0
mau_before = 0
cur.execute(insert_sql, (now, total_servers, total_users, total_mau))
conn.commit()
cur.close()
evo_servers = total_servers - servers_before
evo_users = total_users - users_before
evo_mau = total_mau - mau_before
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return (evo_servers, evo_users, evo_mau)
def write_evo(self, evo_servers, evo_users, evo_mau):
# write evo values
now = datetime.now()
insert_sql = "INSERT INTO evo(datetime, servers, users, mau) VALUES(%s,%s,%s,%s)"
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute(insert_sql, (now, evo_servers, evo_users, evo_mau))
conn.commit()
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
def last_world_datetime(self):
# get world's last update datetime
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute("select updated_at from world order by updated_at desc limit 1")
row = cur.fetchone()
last_update = row[0]
last_update = last_update.strftime('%m/%d/%Y, %H:%M:%S')
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return last_update
def max(self):
# get max servers and mau
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute("select MAX(total_servers) from totals")
row = cur.fetchone()
if row is not None:
max_servers = row[0]
else:
max_servers = 0
cur.execute("select MAX(total_mau) from totals")
row = cur.fetchone()
if row is not None:
max_mau = row[0]
else:
max_mau = 0
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return (max_servers, max_mau)
def get_plots(self):
# get plots
servers_plots = []
mau_plots = []
global_week = []
global_servers = []
global_users = []
global_mau = []
conn = None
try:
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute("select total_servers, total_mau from totals order by datetime desc limit 14")
rows = cur.fetchall()
for row in rows:
servers_plots.append(row[0])
mau_plots.append(row[1])
cur.execute("select distinct on (date_trunc('week', datetime)) datetime::TIMESTAMP::DATE, total_servers, total_users, total_mau from totals group by date_trunc('month', datetime), datetime")
rows = cur.fetchall()
for row in rows:
global_week.append(row[0])
global_servers.append(row[1])
global_users.append(row[2])
global_mau.append(row[3])
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return (servers_plots, mau_plots, global_week, global_servers, global_users, global_mau)
def get_server_data(self, server):
was_alive = None
software = None
api = None
soft_version = None
first_checked_at = None
downs_qty = None
try:
conn = None
conn = psycopg2.connect(database=self.fediverse_db, user=self.fediverse_db_user, password = self.fediverse_db_user_password, host="/var/run/postgresql", port="6432")
cur = conn.cursor()
cur.execute("select alive, software, users_api, version, first_checked_at, downs from fediverse where server=(%s)", (server,))
row = cur.fetchone()
if row is not None:
was_alive = row[0]
software = row[1]
api = row[2]
soft_version = row[3]
first_checked_at = row[4]
downs_qty = row[5]
cur.close()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
return (was_alive, software, api, soft_version, first_checked_at, downs_qty)
def get_soft_data(self, search_soft):
try:
conn = None
conn = psycopg2.connect(database = self.fediverse_db, user = self.fediverse_db_user, password = self.fediverse_db_user_password, host = "/var/run/postgresql", port = "6432")
cur = conn.cursor()
cur.execute("select count(server), sum(users), sum(mau) from fediverse where software=(%s) and alive", (search_soft,))
row = cur.fetchone()
if row != None:
servers = row[0]
users = row[1]
mau = row[2]
else:
servers = 0
users = 0
mau = 0
cur.close()
return (servers, users, mau)
except (Exception, psycopg2.DatabaseError) as error:
sys.exit(error)
finally:
if conn is not None:
conn.close()
def fediquery_server_data(search_server):
try:
conn = None
conn = psycopg2.connect(database = fediverse_db, user = fediverse_db_user, password = "Wer42B2Ir0b0t1c5", host = "/var/run/postgresql", port = "6432")
cur = conn.cursor()
cur.execute("select server, software, version, users, mau, alive from fediverse where server=(%s)", (search_server,))
row = cur.fetchone()
if row != None:
server = row[0]
software = row[1]
version = row[2]
users = row[3]
if row[4] != None:
mau = row[4]
else:
mau = 0
alive = row[5]
else:
server = ''
software = ''
version = ''
users = 0
mau = 0
alive = False
cur.close()
return (server, software, version, users, mau, alive)
except (Exception, psycopg2.DatabaseError) as error:
sys.exit(error)
finally:
if conn is not None:
conn.close()
@staticmethod
def __check_dbsetup(self):
db_setup = False
try:
conn = None
conn = psycopg2.connect(database = self.fediverse_db, user = self.fediverse_db_user, password = self.fediverse_db_user_password, host = "/var/run/postgresql", port = "6432")
db_setup = True
except (Exception, psycopg2.DatabaseError) as error:
print(error)
return db_setup
@staticmethod
def __createdb(self):
conn = None
try:
conn = psycopg2.connect(dbname='postgres',
user=self.fediverse_db_user, host='',
password=self.fediverse_db_user_password)
conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
cur = conn.cursor()
print(f"Creating database {self.fediverse_db}. Please wait...")
cur.execute(sql.SQL("CREATE DATABASE {}").format(
sql.Identifier(self.fediverse_db))
)
print(f"Database {self.fediverse_db} created!\n")
self.__dbtables_schemes(self)
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
@staticmethod
def __dbtables_schemes(self):
db = self.fediverse_db
table = "world"
sql = "create table "+table+" (server varchar(200) PRIMARY KEY, federated_with varchar(200), updated_at timestamptz, saved_at timestamptz, checked boolean)"
self.__create_table(self, table, sql)
table = "fediverse"
sql = "create table "+table+" (server varchar(200) PRIMARY KEY, users INT, updated_at timestamptz, software varchar(50), alive boolean, users_api varchar(50), version varchar(100), first_checked_at timestamptz, last_checked_at timestamptz, downs int, mau int)"
self.__create_table(self, table, sql)
table = "blocked"
sql = "create table "+table+" (server varchar(200) PRIMARY KEY, users INT, updated_at timestamptz, software varchar(50), alive boolean, users_api varchar(50), version varchar(100), first_checked_at timestamptz, last_checked_at timestamptz, downs int)"
self.__create_table(self, table, sql)
table = "totals"
sql = "create table "+table+" (datetime timestamptz PRIMARY KEY, total_servers INT, total_users INT)"
self.__create_table(self, table, sql)
table = "evo"
sql = "create table "+table+" (datetime timestamptz PRIMARY KEY, servers INT, users INT)"
self.__create_table(self, table, sql)
table = "execution_time"
sql = "create table "+table+" (program varchar(20) PRIMARY KEY, start timestamptz, finish timestamptz)"
self.__create_table(self, table, sql)
@staticmethod
def __create_table(self, table, sql):
conn = None
try:
conn = psycopg2.connect(database = self.fediverse_db, user = self.fediverse_db_user, password = self.fediverse_db_user_password, host = "/var/run/postgresql", port = "6432")
cur = conn.cursor()
print(f"Creating table {table}")
cur.execute(sql)
conn.commit()
print(f"Table {table} created!\n")
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
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'fediverse_db: {self.fediverse_db}\nfediverse_db_user: {self.fediverse_db_user}\nfediverse_db_user_password: {self.fediverse_db_user_password}')
print(f"adding parameters to {self.config_file}\n")