pgadmin4/web/config.py

# -*- coding: utf-8 -*-

##########################################################################
#
# pgAdmin 4 - PostgreSQL Tools
#
# Copyright (C) 2013 - 2020, The pgAdmin Development Team
# This software is released under the PostgreSQL Licence
#
# config.py - Core application configuration settings
#
##########################################################################

import logging
import os
import sys
import json

if sys.version_info[0] >= 3:
    import builtins
else:
    import __builtin__ as builtins

# 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.utils import env, IS_PY2, IS_WIN, fs_short_path

##########################################################################
# Application settings
##########################################################################

# Name of the application to display in the UI
APP_NAME = 'pgAdmin 4'
APP_ICON = 'pg-icon'

##########################################################################
# Application settings
##########################################################################

# NOTE!!!
# If you change any of APP_RELEASE, APP_REVISION or APP_SUFFIX, then you
# must also change APP_VERSION_INT to match.
#
# Any changes made here must also be made in runtime/pgAdmin4.pro and
# runtime/Info.plist
#

# Application version number components
APP_RELEASE = 4
APP_REVISION = 16

# Application version suffix, e.g. 'beta1', 'dev'. Usually an empty string
# for GA releases.
APP_SUFFIX = ''

# Numeric application version for upgrade checks. Should be in the format:
# [X]XYYZZ, where X is the release version, Y is the revision, with a leading
# zero if needed, and Z represents the suffix, with a leading zero if needed
APP_VERSION_INT = 41600

# DO NOT CHANGE!
# The application version string, constructed from the components
if not APP_SUFFIX:
    APP_VERSION = '%s.%s' % (APP_RELEASE, APP_REVISION)
else:
    APP_VERSION = '%s.%s-%s' % (APP_RELEASE, APP_REVISION, APP_SUFFIX)

# Copyright string for display in the app
# Any changes made here must also be made in runtime/pgAdmin4.pro
APP_COPYRIGHT = 'Copyright (C) 2013 - 2020, The pgAdmin Development Team'

##########################################################################
# Misc stuff
##########################################################################

# Path to the online help.
HELP_PATH = '../../../docs/en_US/_build/html/'

# Languages we support in the UI
LANGUAGES = {
    'en': 'English',
    'zh': 'Chinese (Simplified)',
    'fr': 'French',
    'de': 'German',
    'it': 'Italian',
    'ja': 'Japanese',
    'ko': 'Korean',
    'pl': 'Polish',
    'ru': 'Russian',
    'es': 'Spanish',
}

# DO NOT CHANGE UNLESS YOU KNOW WHAT YOU ARE DOING!
# List of modules to skip when dynamically loading
MODULE_BLACKLIST = ['test']

# DO NOT CHANGE UNLESS YOU KNOW WHAT YOU ARE DOING!
# List of treeview browser nodes to skip when dynamically loading
NODE_BLACKLIST = []

##########################################################################
# Server settings
##########################################################################

# The server mode determines whether or not we're running on a web server
# requiring user authentication, or desktop mode which uses an automatic
# default login.
#
# DO NOT DISABLE SERVER MODE IF RUNNING ON A WEBSERVER!!
#
# We only set SERVER_MODE if it's not already set. That's to allow the
# runtime to force it to False.
#
# NOTE: If you change the value of SERVER_MODE in an included config file,
#       you may also need to redefine any values below that are derived
#       from it, notably various paths such as LOG_FILE and anything
#       using DATA_DIR.

if (not hasattr(builtins, 'SERVER_MODE')) or builtins.SERVER_MODE is None:
    SERVER_MODE = True
else:
    SERVER_MODE = builtins.SERVER_MODE

# HTTP headers to search for CSRF token when it is not provided in the form.
# Default is ['X-CSRFToken', 'X-CSRF-Token']
WTF_CSRF_HEADERS = ['X-pgA-CSRFToken']

# User ID (email address) to use for the default user in desktop mode.
# The default should be fine here, as it's not exposed in the app.
DESKTOP_USER = 'pgadmin4@pgadmin.org'

# This option allows the user to host the application on a LAN
# Default hosting is on localhost (DEFAULT_SERVER='localhost').
# To host pgAdmin4 over LAN set DEFAULT_SERVER='0.0.0.0' (or a specific
# adaptor address.
#
# NOTE: This is NOT recommended for production use, only for debugging
# or testing. Production installations should be run as a WSGI application
# behind Apache HTTPD.
DEFAULT_SERVER = '127.0.0.1'

# The default port on which the app server will listen if not set in the
# environment by the runtime
DEFAULT_SERVER_PORT = 5050

# Enable X-Frame-Option protection.
# Set to one of "SAMEORIGIN", "ALLOW-FROM origin" or "" to disable.
# Note that "DENY" is NOT supported (and will be silently ignored).
# See https://tools.ietf.org/html/rfc7034 for more info.
X_FRAME_OPTIONS = "SAMEORIGIN"

# Hashing algorithm used for password storage
SECURITY_PASSWORD_HASH = 'pbkdf2_sha512'

# Reverse Proxy parameters
# You must tell the middleware how many proxies set each header
# so it knows what values to trust.
# See https://tinyurl.com/yyg7r9av
# for more information.

# Number of values to trust for X-Forwarded-For
PROXY_X_FOR_COUNT = 1

# Number of values to trust for X-Forwarded-Proto.
PROXY_X_PROTO_COUNT = 1

# Number of values to trust for X-Forwarded-Host.
PROXY_X_HOST_COUNT = 0

# Number of values to trust for X-Forwarded-Port.
PROXY_X_PORT_COUNT = 1

# Number of values to trust for X-Forwarded-Prefix.
PROXY_X_PREFIX_COUNT = 0

# NOTE: CSRF_SESSION_KEY, SECRET_KEY and SECURITY_PASSWORD_SALT are no
#       longer part of the main configuration, but are stored in the
#       configuration databases 'keys' table and are auto-generated.

# COMPRESSION
COMPRESS_MIMETYPES = [
    'text/html', 'text/css', 'text/xml', 'application/json',
    'application/javascript'
]
COMPRESS_LEVEL = 9
COMPRESS_MIN_SIZE = 500

# Set the cache control max age for static files in flask to 1 year
SEND_FILE_MAX_AGE_DEFAULT = 31556952

# This will be added to static urls as url parameter with value as
# APP_VERSION_INT for cache busting on version upgrade. If the value is set as
# None or empty string then it will not be added.
# eg - http:localhost:5050/pgadmin.css?intver=3.13
APP_VERSION_PARAM = 'ver'

# Add the internal version param to below extensions only
APP_VERSION_EXTN = ('.css', '.js', '.html', '.svg', '.png', '.gif', '.ico')

# Data directory for storage of config settings etc. This shouldn't normally
# need to be changed - it's here as various other settings depend on it.
# On Windows, we always store data in %APPDATA%\pgAdmin. On other platforms,
# if we're in server mode we use /var/lib/pgadmin, otherwise ~/.pgadmin
if IS_WIN:
    # Use the short path on windows
    DATA_DIR = os.path.realpath(
        os.path.join(fs_short_path(env('APPDATA')), u"pgAdmin")
    )
else:
    if SERVER_MODE:
        DATA_DIR = '/var/lib/pgadmin'
    else:
        DATA_DIR = os.path.realpath(os.path.expanduser(u'~/.pgadmin/'))

# An optional login banner to show security warnings/disclaimers etc. at
# login and password recovery etc. HTML may be included for basic formatting,
# For example:
# LOGIN_BANNER = "<h4>Authorised Users Only!</h4>" \
#                "Unauthorised use is strictly forbidden."
LOGIN_BANNER = ""

##########################################################################
# Log settings
##########################################################################

# Debug mode?
DEBUG = False

# Application log level - one of:
#   CRITICAL 50
#   ERROR    40
#   WARNING  30
#   SQL      25
#   INFO     20
#   DEBUG    10
#   NOTSET    0
CONSOLE_LOG_LEVEL = logging.WARNING
FILE_LOG_LEVEL = logging.WARNING

# Log format.
CONSOLE_LOG_FORMAT = '%(asctime)s: %(levelname)s\t%(name)s:\t%(message)s'
FILE_LOG_FORMAT = '%(asctime)s: %(levelname)s\t%(name)s:\t%(message)s'

# Log file name. This goes in the data directory, except on non-Windows
# platforms in server mode.
if SERVER_MODE and not IS_WIN:
    LOG_FILE = '/var/log/pgadmin/pgadmin4.log'
else:
    LOG_FILE = os.path.join(DATA_DIR, 'pgadmin4.log')

##########################################################################
# Server Connection Driver Settings
##########################################################################

# The default driver used for making connection with PostgreSQL
PG_DEFAULT_DRIVER = 'psycopg2'

# Maximum allowed idle time in minutes before which releasing the connection
# for the particular session. (in minutes)
MAX_SESSION_IDLE_TIME = 60

##########################################################################
# User account and settings storage
##########################################################################

# The default path to the SQLite database used to store user accounts and
# settings. This default places the file in the same directory as this
# config file, but generates an absolute path for use througout the app.
SQLITE_PATH = env('SQLITE_PATH') or os.path.join(DATA_DIR, 'pgadmin4.db')

# SQLITE_TIMEOUT will define how long to wait before throwing the error -
# OperationError due to database lock. On slower system, you may need to change
# this to some higher value.
# (Default: 500 milliseconds)
SQLITE_TIMEOUT = 500

# Allow database connection passwords to be saved if the user chooses.
# Set to False to disable password saving.
ALLOW_SAVE_PASSWORD = True

# Maximum number of history queries stored per user/server/database
MAX_QUERY_HIST_STORED = 20

##########################################################################
# Server-side session storage path
#
# SESSION_DB_PATH (Default: $HOME/.pgadmin4/sessions)
##########################################################################
#
# We use SQLite for server-side session storage. There will be one
# SQLite database object per session created.
#
# Specify the path used to store your session objects.
#
# If the specified directory does not exist, the setup script will create
# it with permission mode 700 to keep the session database secure.
#
# On certain systems, you can use shared memory (tmpfs) for maximum
# scalability, for example, on Ubuntu:
#
# SESSION_DB_PATH = '/run/shm/pgAdmin4_session'
#
##########################################################################
SESSION_DB_PATH = os.path.join(DATA_DIR, 'sessions')

SESSION_COOKIE_NAME = 'pga4_session'

##########################################################################
# Mail server settings
##########################################################################

# These settings are used when running in web server mode for confirming
# and resetting passwords etc.
# See: http://pythonhosted.org/Flask-Mail/ for more info
MAIL_SERVER = 'localhost'
MAIL_PORT = 25
MAIL_USE_SSL = False
MAIL_USE_TLS = False
MAIL_USERNAME = ''
MAIL_PASSWORD = ''
MAIL_DEBUG = False

# Flask-Security overrides Flask-Mail's MAIL_DEFAULT_SENDER setting, so
# that should be set as such:
SECURITY_EMAIL_SENDER = 'no-reply@localhost'

##########################################################################
# Mail content settings
##########################################################################

# These settings define the content of password reset emails
SECURITY_EMAIL_SUBJECT_PASSWORD_RESET = "Password reset instructions for %s" \
                                        % APP_NAME
SECURITY_EMAIL_SUBJECT_PASSWORD_NOTICE = "Your %s password has been reset" \
                                         % APP_NAME
SECURITY_EMAIL_SUBJECT_PASSWORD_CHANGE_NOTICE = \
    "Your password for %s has been changed" % APP_NAME

##########################################################################
# Upgrade checks
##########################################################################

# Check for new versions of the application?
UPGRADE_CHECK_ENABLED = True

# Where should we get the data from?
UPGRADE_CHECK_URL = 'https://www.pgadmin.org/versions.json'

# What key should we look at in the upgrade data file?
UPGRADE_CHECK_KEY = 'pgadmin4'

# Which CA file should we use?
# Default to cacert.pem in the same directory as config.py et al.
CA_FILE = os.path.join(os.path.dirname(os.path.realpath(__file__)),
                       "cacert.pem")

##########################################################################
# Storage Manager storage url config settings
# If user sets STORAGE_DIR to empty it will show all volumes if platform
# is Windows, '/' if it is Linux, Mac or any other unix type system.

# For example:
# 1. STORAGE_DIR = get_drive("C") or get_drive() # return C:/ by default
# where C can be any drive character such as "D", "E", "G" etc
# 2. Set path manually like
# STORAGE_DIR = "/path/to/directory/"
##########################################################################
STORAGE_DIR = os.path.join(DATA_DIR, 'storage')

##########################################################################
# Default locations for binary utilities (pg_dump, pg_restore etc)
#
# These are intentionally left empty in the main config file, but are
# expected to be overridden by packagers in config_distro.py.
#
# A default location can be specified for each database driver ID, in
# a dictionary. Either an absolute or relative path can be specified.
# In cases where it may be difficult to know what the working directory
# is, "$DIR" can be specified. This will be replaced with the path to the
# top-level pgAdmin4.py file. For example, on macOS we might use:
#
# $DIR/../../SharedSupport
#
##########################################################################
DEFAULT_BINARY_PATHS = {
    "pg": "",
    "ppas": "",
    "gpdb": ""
}

##########################################################################
# Test settings - used primarily by the regression suite, not for users
##########################################################################

# The default path for SQLite database for testing
TEST_SQLITE_PATH = os.path.join(DATA_DIR, 'test_pgadmin4.db')

##########################################################################
# Allows flask application to response to the each request asynchronously
##########################################################################
THREADED_MODE = True

##########################################################################
# Do not allow SQLALCHEMY to track modification as it is going to be
# deprecated in future
##########################################################################
SQLALCHEMY_TRACK_MODIFICATIONS = False

##########################################################################
# Number of records to fetch in one batch in query tool when query result
# set is large.
##########################################################################
ON_DEMAND_RECORD_COUNT = 1000

##########################################################################
# Allow users to display Gravatar image for their username in Server mode
##########################################################################
SHOW_GRAVATAR_IMAGE = True

##########################################################################
# Set cookie path
##########################################################################
COOKIE_DEFAULT_PATH = '/'
COOKIE_DEFAULT_DOMAIN = None
SESSION_COOKIE_DOMAIN = None
SESSION_COOKIE_SAMESITE = 'Lax'

#########################################################################
# Skip storing session in files and cache for specific paths
#########################################################################
SESSION_SKIP_PATHS = [
    '/misc/ping'
]

##########################################################################
# Session expiration support
##########################################################################
# SESSION_EXPIRATION_TIME is the interval in Days. Session will be
# expire after the specified number of *days*.
SESSION_EXPIRATION_TIME = 1

# CHECK_SESSION_FILES_INTERVAL is interval in Hours. Application will check
# the session files for cleanup after specified number of *hours*.
CHECK_SESSION_FILES_INTERVAL = 24

##########################################################################
# SSH Tunneling supports only for Python 2.7 and 3.4+
##########################################################################
SUPPORT_SSH_TUNNEL = True
# Allow SSH Tunnel passwords to be saved if the user chooses.
# Set to False to disable password saving.
ALLOW_SAVE_TUNNEL_PASSWORD = False

##########################################################################
# Master password is used to encrypt/decrypt saved server passwords
# Applicable for desktop mode only
##########################################################################
MASTER_PASSWORD_REQUIRED = True

##########################################################################
# Allows pgAdmin4 to create session cookies based on IP address, so even
# if a cookie is stolen, the attacker will not be able to connect to the
# server using that stolen cookie.
# Note: This can cause problems when the server is deployed in dynamic IP
# address hosting environments, such as Kubernetes or behind load
# balancers. In such cases, this option should be set to False.
##########################################################################
ENHANCED_COOKIE_PROTECTION = True

##########################################################################
# Local config settings
##########################################################################

# Load distribution-specific config overrides
try:
    from config_distro import *
except ImportError:
    pass

# Load local config overrides
try:
    from config_local import *
except ImportError:
    pass


# SUPPORT_SSH_TUNNEL can be override in local config file and if that
# setting is False in local config then we should not check the Python version.
if (SUPPORT_SSH_TUNNEL is True and
    ((sys.version_info[0] == 2 and sys.version_info[1] < 7) or
     (sys.version_info[0] == 3 and sys.version_info[1] < 4))):
    SUPPORT_SSH_TUNNEL = False
    ALLOW_SAVE_TUNNEL_PASSWORD = False