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# -------------------------------------------------------------------------
# Copyright (c) 2015-2017 AT&T Intellectual Property
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# -------------------------------------------------------------------------
#
"""
OSDF Manager Main Flask Application
"""
import json
import ssl
import sys
import time
import traceback
from optparse import OptionParser
import pydevd
from flask import Flask, request, Response, g
from requests import RequestException
from schematics.exceptions import DataError
import osdf.adapters.aaf.sms as sms
import osdf.operation.responses
from osdf.config.base import osdf_config
from osdf.logging.osdf_logging import error_log, debug_log
from osdf.operation.error_handling import request_exception_to_json_body, internal_error_message
from osdf.operation.exceptions import BusinessException
from osdf.utils.mdc_utils import clear_mdc, mdc_from_json, default_mdc, get_request_id
ERROR_TEMPLATE = osdf.ERROR_TEMPLATE
app = Flask(__name__)
BAD_CLIENT_REQUEST_MESSAGE = 'Client sent an invalid request'
@app.errorhandler(BusinessException)
def handle_business_exception(e):
"""An exception explicitly raised due to some business rule"""
error_log.error("Synchronous error for request id {} {}".format(g.request_id, traceback.format_exc()))
err_msg = ERROR_TEMPLATE.render(description=str(e))
response = Response(err_msg, content_type='application/json; charset=utf-8')
response.status_code = 400
return response
@app.errorhandler(RequestException)
def handle_request_exception(e):
"""Returns a detailed synchronous message to the calling client
when osdf fails due to a remote call to another system"""
error_log.error("Synchronous error for request id {} {}".format(g.request_id, traceback.format_exc()))
err_msg = request_exception_to_json_body(e)
response = Response(err_msg, content_type='application/json; charset=utf-8')
response.status_code = 400
return response
@app.errorhandler(DataError)
def handle_data_error(e):
"""Returns a detailed message to the calling client when the initial synchronous message is invalid"""
error_log.error("Synchronous error for request id {} {}".format(g.request_id, traceback.format_exc()))
body_dictionary = {
"serviceException": {
"text": BAD_CLIENT_REQUEST_MESSAGE,
"exceptionMessage": str(e.errors),
"errorType": "InvalidClientRequest"
}
}
body_as_json = json.dumps(body_dictionary)
response = Response(body_as_json, content_type='application/json; charset=utf-8')
response.status_code = 400
return response
@app.before_request
def log_request():
g.request_start = time.process_time()
if request.data:
if request.get_json():
request_json = request.get_json()
g.request_id = get_request_id(request_json)
mdc_from_json(request_json)
else:
g.request_id = "N/A"
default_mdc()
else:
g.request_id = "N/A"
default_mdc()
@app.after_request
def log_response(response):
clear_mdc()
return response
@app.errorhandler(500)
def internal_failure(error):
"""Returned when unexpected coding errors occur during initial synchronous processing"""
error_log.error("Synchronous error for request id {} {}".format(g.request_id, traceback.format_exc()))
response = Response(internal_error_message, content_type='application/json; charset=utf-8')
response.status_code = 500
return response
def get_options(argv):
program_version_string = '%%prog %s' % "v1.0"
program_longdesc = ""
program_license = ""
parser = OptionParser(version=program_version_string, epilog=program_longdesc, description=program_license)
parser.add_option("-l", "--local", dest="local", help="run locally", action="store_true", default=False)
parser.add_option("-t", "--devtest", dest="devtest", help="run in dev/test environment", action="store_true",
default=False)
parser.add_option("-d", "--debughost", dest="debughost", help="IP Address of host running debug server", default='')
parser.add_option("-p", "--debugport", dest="debugport", help="Port number of debug server", type=int, default=5678)
opts, args = parser.parse_args(argv)
if opts.debughost:
debug_log.debug('pydevd.settrace({}, port={})'.format(opts.debughost, opts.debugport))
pydevd.settrace(opts.debughost, port=opts.debugport)
return opts
def build_ssl_context():
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLSv1_2)
ssl_context.set_ciphers('ECDHE-RSA-AES128-SHA256:EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH')
ssl_context.load_cert_chain(sys_conf['ssl_context'][0], sys_conf['ssl_context'][1])
return ssl_context
def run_app():
global sys_conf
sys_conf = osdf_config['core']['osdf_system']
ports = sys_conf['osdf_ports']
internal_port, external_port = ports['internal'], ports['external']
local_host = sys_conf['osdf_ip_default']
common_app_opts = dict(host=local_host, threaded=True, use_reloader=False)
ssl_opts = sys_conf.get('ssl_context')
if ssl_opts:
common_app_opts.update({'ssl_context': build_ssl_context()})
opts = get_options(sys.argv)
# Load secrets from SMS
sms.load_secrets()
if not opts.local and not opts.devtest: # normal deployment
app.run(port=internal_port, debug=False, **common_app_opts)
else:
port = internal_port if opts.local else external_port
app.run(port=port, debug=True, **common_app_opts)
if __name__ == "__main__":
run_app()
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