pgadmin4/web/setup.py
2020-09-28 17:47:38 +05:30

447 lines
15 KiB
Python

#########################################################################
#
# pgAdmin 4 - PostgreSQL Tools
#
# Copyright (C) 2013 - 2020, The pgAdmin Development Team
# This software is released under the PostgreSQL Licence
#
##########################################################################
"""Perform the initial setup of the application, by creating the auth
and settings database."""
import argparse
import json
import os
import sys
import builtins
# Grab the SERVER_MODE if it's been set by the runtime
if 'SERVER_MODE' in globals():
builtins.SERVER_MODE = globals()['SERVER_MODE']
else:
builtins.SERVER_MODE = None
# We need to include the root directory in sys.path to ensure that we can
# find everything we need when running in the standalone runtime.
root = os.path.dirname(os.path.realpath(__file__))
if sys.path[0] != root:
sys.path.insert(0, root)
from pgadmin import create_app
from pgadmin.model import db, User, Version, ServerGroup, Server, \
SCHEMA_VERSION as CURRENT_SCHEMA_VERSION
def add_value(attr_dict, key, value):
"""Add a value to the attribute dict if non-empty.
Args:
attr_dict (dict): The dictionary to add the values to
key (str): The key for the new value
value (str): The value to add
Returns:
The updated attribute dictionary
"""
if value != "" and value is not None:
attr_dict[key] = value
return attr_dict
def dump_servers(args):
"""Dump the server groups and servers.
Args:
args (ArgParser): The parsed command line options
"""
# What user?
if args.user is not None:
dump_user = args.user
else:
dump_user = config.DESKTOP_USER
# And the sqlite path
if args.sqlite_path is not None:
config.SQLITE_PATH = args.sqlite_path
print('----------')
print('Dumping servers with:')
print('User:', dump_user)
print('SQLite pgAdmin config:', config.SQLITE_PATH)
print('----------')
app = create_app(config.APP_NAME + '-cli')
with app.app_context():
user = User.query.filter_by(email=dump_user).first()
if user is None:
print("The specified user ID (%s) could not be found." %
dump_user)
sys.exit(1)
user_id = user.id
# Dict to collect the output
object_dict = {}
# Counters
servers_dumped = 0
# Dump servers
servers = Server.query.filter_by(user_id=user_id).all()
server_dict = {}
for server in servers:
if args.servers is None or str(server.id) in args.servers:
# Get the group name
group_name = ServerGroup.query.filter_by(
user_id=user_id, id=server.servergroup_id).first().name
attr_dict = {}
add_value(attr_dict, "Name", server.name)
add_value(attr_dict, "Group", group_name)
add_value(attr_dict, "Host", server.host)
add_value(attr_dict, "HostAddr", server.hostaddr)
add_value(attr_dict, "Port", server.port)
add_value(attr_dict, "MaintenanceDB", server.maintenance_db)
add_value(attr_dict, "Username", server.username)
add_value(attr_dict, "Role", server.role)
add_value(attr_dict, "SSLMode", server.ssl_mode)
add_value(attr_dict, "Comment", server.comment)
add_value(attr_dict, "Shared", server.shared)
add_value(attr_dict, "DBRestriction", server.db_res)
add_value(attr_dict, "PassFile", server.passfile)
add_value(attr_dict, "SSLCert", server.sslcert)
add_value(attr_dict, "SSLKey", server.sslkey)
add_value(attr_dict, "SSLRootCert", server.sslrootcert)
add_value(attr_dict, "SSLCrl", server.sslcrl)
add_value(attr_dict, "SSLCompression", server.sslcompression)
add_value(attr_dict, "BGColor", server.bgcolor)
add_value(attr_dict, "FGColor", server.fgcolor)
add_value(attr_dict, "Service", server.service)
add_value(attr_dict, "Timeout", server.connect_timeout)
add_value(attr_dict, "UseSSHTunnel", server.use_ssh_tunnel)
add_value(attr_dict, "TunnelHost", server.tunnel_host)
add_value(attr_dict, "TunnelPort", server.tunnel_port)
add_value(attr_dict, "TunnelUsername", server.tunnel_username)
add_value(attr_dict, "TunnelAuthentication",
server.tunnel_authentication)
servers_dumped = servers_dumped + 1
server_dict[servers_dumped] = attr_dict
object_dict["Servers"] = server_dict
try:
f = open(args.dump_servers, "w")
except Exception as e:
print("Error opening output file %s: [%d] %s" %
(args.dump_servers, e.errno, e.strerror))
sys.exit(1)
try:
f.write(json.dumps(object_dict, indent=4))
except Exception as e:
print("Error writing output file %s: [%d] %s" %
(args.dump_servers, e.errno, e.strerror))
sys.exit(1)
f.close()
print("Configuration for %s servers dumped to %s." %
(servers_dumped, args.dump_servers))
def _validate_servers_data(data, is_admin):
"""
Used internally by load_servers to validate servers data.
:param data: servers data
:return: error message if any
"""
skip_servers = []
# Loop through the servers...
if "Servers" not in data:
return ("'Servers' attribute not found in file '%s'" %
args.load_servers)
for server in data["Servers"]:
obj = data["Servers"][server]
# Check if server is shared.Won't import if user is non-admin
if obj.get('Shared', None) and not is_admin:
print("Won't import the server '%s' as it is shared " %
obj["Name"])
skip_servers.append(server)
continue
def check_attrib(attrib):
if attrib not in obj:
return ("'%s' attribute not found for server '%s'" %
(attrib, server))
check_attrib("Name")
check_attrib("Group")
is_service_attrib_available = obj.get("Service", None) is not None
if not is_service_attrib_available:
check_attrib("Port")
check_attrib("Username")
check_attrib("SSLMode")
check_attrib("MaintenanceDB")
if "Host" not in obj and "HostAddr" not in obj and not \
is_service_attrib_available:
return ("'Host', 'HostAddr' or 'Service' attribute "
"not found for server '%s'" % server)
for server in skip_servers:
del data["Servers"][server]
return None
def load_servers(args):
"""Load server groups and servers.
Args:
args (ArgParser): The parsed command line options
"""
# What user?
load_user = args.user if args.user is not None else config.DESKTOP_USER
# And the sqlite path
if args.sqlite_path is not None:
config.SQLITE_PATH = args.sqlite_path
print('----------')
print('Loading servers with:')
print('User:', load_user)
print('SQLite pgAdmin config:', config.SQLITE_PATH)
print('----------')
try:
with open(args.load_servers) as f:
data = json.load(f)
except json.decoder.JSONDecodeError as e:
print("Error parsing input file %s: %s" %
(args.load_servers, e))
sys.exit(1)
except Exception as e:
print("Error reading input file %s: [%d] %s" %
(args.load_servers, e.errno, e.strerror))
sys.exit(1)
f.close()
app = create_app(config.APP_NAME + '-cli')
with app.app_context():
user = User.query.filter_by(email=load_user).first()
if user is None:
print("The specified user ID (%s) could not be found." %
load_user)
sys.exit(1)
user_id = user.id
# Counters
groups_added = 0
servers_added = 0
# Get the server groups
groups = ServerGroup.query.filter_by(user_id=user_id)
def print_summary():
print("Added %d Server Group(s) and %d Server(s)." %
(groups_added, servers_added))
err_msg = _validate_servers_data(data, user.has_role("Administrator"))
if err_msg is not None:
print(err_msg)
print_summary()
sys.exit(1)
for server in data["Servers"]:
obj = data["Servers"][server]
# Get the group. Create if necessary
group_id = next(
(g.id for g in groups if g.name == obj["Group"]), -1)
if group_id == -1:
new_group = ServerGroup()
new_group.name = obj["Group"]
new_group.user_id = user_id
db.session.add(new_group)
try:
db.session.commit()
except Exception as e:
print("Error creating server group '%s': %s" %
(new_group.name, e))
print_summary()
sys.exit(1)
group_id = new_group.id
groups_added = groups_added + 1
groups = ServerGroup.query.filter_by(user_id=user_id)
# Create the server
new_server = Server()
new_server.name = obj["Name"]
new_server.servergroup_id = group_id
new_server.user_id = user_id
new_server.ssl_mode = obj["SSLMode"]
new_server.maintenance_db = obj["MaintenanceDB"]
new_server.host = obj.get("Host", None)
new_server.hostaddr = obj.get("HostAddr", None)
new_server.port = obj.get("Port", None)
new_server.username = obj.get("Username", None)
new_server.role = obj.get("Role", None)
new_server.ssl_mode = obj["SSLMode"]
new_server.comment = obj.get("Comment", None)
new_server.db_res = obj.get("DBRestriction", None)
new_server.passfile = obj.get("PassFile", None)
new_server.sslcert = obj.get("SSLCert", None)
new_server.sslkey = obj.get("SSLKey", None)
new_server.sslrootcert = obj.get("SSLRootCert", None)
new_server.sslcrl = obj.get("SSLCrl", None)
new_server.sslcompression = obj.get("SSLCompression", None)
new_server.bgcolor = obj.get("BGColor", None)
new_server.fgcolor = obj.get("FGColor", None)
new_server.service = obj.get("Service", None)
new_server.connect_timeout = obj.get("Timeout", None)
new_server.use_ssh_tunnel = obj.get("UseSSHTunnel", None)
new_server.tunnel_host = obj.get("TunnelHost", None)
new_server.tunnel_port = obj.get("TunnelPort", None)
new_server.tunnel_username = obj.get("TunnelUsername", None)
new_server.tunnel_authentication = \
obj.get("TunnelAuthentication", None)
db.session.add(new_server)
try:
db.session.commit()
except Exception as e:
print("Error creating server '%s': %s" %
(new_server.name, e))
print_summary()
sys.exit(1)
servers_added = servers_added + 1
print_summary()
def setup_db():
"""Setup the configuration database."""
create_app_data_directory(config)
app = create_app()
print("pgAdmin 4 - Application Initialisation")
print("======================================\n")
with app.app_context():
# Run migration for the first time i.e. create database
from config import SQLITE_PATH
if not os.path.exists(SQLITE_PATH):
db_upgrade(app)
else:
version = Version.query.filter_by(name='ConfigDB').first()
schema_version = version.value
# Run migration if current schema version is greater than the
# schema version stored in version table
if CURRENT_SCHEMA_VERSION >= schema_version:
db_upgrade(app)
# Update schema version to the latest
if CURRENT_SCHEMA_VERSION > schema_version:
version = Version.query.filter_by(name='ConfigDB').first()
version.value = CURRENT_SCHEMA_VERSION
db.session.commit()
if os.name != 'nt':
os.chmod(config.SQLITE_PATH, 0o600)
if __name__ == '__main__':
# Configuration settings
import config
from pgadmin.model import SCHEMA_VERSION
from pgadmin.setup import db_upgrade, create_app_data_directory
parser = argparse.ArgumentParser(description='Setup the pgAdmin config DB')
exp_group = parser.add_argument_group('Dump server config')
exp_group.add_argument('--dump-servers', metavar="OUTPUT_FILE",
help='Dump the servers in the DB', required=False)
exp_group.add_argument('--servers', metavar="SERVERS", nargs='*',
help='One or more servers to dump', required=False)
imp_group = parser.add_argument_group('Load server config')
imp_group.add_argument('--load-servers', metavar="INPUT_FILE",
help='Load servers into the DB', required=False)
# Common args
parser.add_argument('--sqlite-path', metavar="PATH",
help='Dump/load with the specified pgAdmin config DB'
' file. This is particularly helpful when there'
' are multiple pgAdmin configurations. It is also'
' recommended to use this option when running'
' pgAdmin in desktop mode.', required=False)
parser.add_argument('--user', metavar="USER_NAME",
help='Dump/load servers for the specified username',
required=False)
args, extra = parser.parse_known_args()
config.SETTINGS_SCHEMA_VERSION = SCHEMA_VERSION
if "PGADMIN_TESTING_MODE" in os.environ and \
os.environ["PGADMIN_TESTING_MODE"] == "1":
config.SQLITE_PATH = config.TEST_SQLITE_PATH
# What to do?
if args.dump_servers is not None:
try:
dump_servers(args)
except Exception as e:
print(str(e))
elif args.load_servers is not None:
try:
load_servers(args)
except Exception as e:
print(str(e))
else:
setup_db()