pgadmin4/web/pgAdmin4.py
Murtuza Zabuawala bc63652811 Fix the issue where Import/Export was failing in linux runtime. Fixes #2166
Issue:
Changes done by Ashesh in pgAdmin4.py file for setting up PYTHONHOME variable to sys.prefix was applicable only for windows only.

Additionally I have also added exception handling for file provided by user for Backup/Restore/Import/Export.
2017-03-09 09:54:55 +00:00

116 lines
4.1 KiB
Python

##########################################################################
#
# pgAdmin 4 - PostgreSQL Tools
#
# Copyright (C) 2013 - 2017, The pgAdmin Development Team
# This software is released under the PostgreSQL Licence
#
##########################################################################
"""This is the main application entry point for pgAdmin 4. If running on
a webserver, this will provide the WSGI interface, otherwise, we're going
to start a web server."""
import os
import sys
# 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)
import config
from pgadmin import create_app
# Get the config database schema version. We store this in pgadmin.model
# as it turns out that putting it in the config files isn't a great idea
from pgadmin.model import SCHEMA_VERSION
config.SETTINGS_SCHEMA_VERSION = SCHEMA_VERSION
##########################################################################
# Sanity checks
##########################################################################
# Check if the database exists. If it does not, create it.
if not os.path.isfile(config.SQLITE_PATH):
from pgadmin.utils import u, fs_encoding, file_quote
setupfile = os.path.join(
os.path.dirname(os.path.realpath(u(__file__, fs_encoding))), u'setup.py'
)
exec(open(file_quote(setupfile), 'r').read())
##########################################################################
# Server starup
##########################################################################
# Create the app!
app = create_app()
if config.DEBUG:
app.debug = True
else:
app.debug = False
# Start the web server. The port number should have already been set by the
# runtime if we're running in desktop mode, otherwise we'll just use the
# Flask default.
PGADMIN_RUNTIME = False
if 'PGADMIN_PORT' in globals():
app.logger.debug('Running under the desktop runtime, port: %s',
globals()['PGADMIN_PORT'])
server_port = int(globals()['PGADMIN_PORT'])
PGADMIN_RUNTIME = True
elif 'PGADMIN_PORT' in os.environ:
port = os.environ['PGADMIN_PORT']
app.logger.debug(
'Not running under the desktop runtime, port: %s',
port)
server_port = int(port)
else:
app.logger.debug(
'Not running under the desktop runtime, port: %s',
config.DEFAULT_SERVER_PORT)
server_port = config.DEFAULT_SERVER_PORT
# Let the application save the status about the runtime for using it later.
app.PGADMIN_RUNTIME = PGADMIN_RUNTIME
# Set the key if appropriate
if 'PGADMIN_KEY' in globals():
app.PGADMIN_KEY = globals()['PGADMIN_KEY']
app.logger.debug("Desktop security key: %s" % app.PGADMIN_KEY)
else:
app.PGADMIN_KEY = ''
# Output a startup message if we're not under the runtime and startup.
# If we're under WSGI, we don't need to worry about this
if __name__ == '__main__':
if not PGADMIN_RUNTIME:
print("Starting %s. Please navigate to http://%s:%d in your browser." %
(config.APP_NAME, config.DEFAULT_SERVER, server_port))
sys.stdout.flush()
else:
# For unknown reason the Qt runtime does not pass the environment
# variables (i.e. PYTHONHOME, and PYTHONPATH), to the Python
# sub-processes, leading to failures executing background processes.
#
# This has been observed only on windows. On *nix systems, it is likely
# picking the system python environment, which is good enough to run
# the process-executor.
#
# Setting PYTHONHOME launch them properly.
from pgadmin.utils import IS_WIN
if IS_WIN:
os.environ['PYTHONHOME'] = sys.prefix
try:
app.run(
host=config.DEFAULT_SERVER,
port=server_port,
use_reloader=((not PGADMIN_RUNTIME) and app.debug),
threaded=config.THREADED_MODE
)
except IOError:
app.logger.error("Error starting the app server: %s", sys.exc_info())