Add equipments and topolgies endpoints

- add POST, PUT, DELETE on equipments
- add POST, PUT, GET, DELETE on topogies
- path-computation request body can now have equipment id and/or
topology id instead of full data
- activate embedded https of Flask while waiting for real trusted
certificate
- update readme
- add request payload samples in yang directory
- equipment data are encrypted with Fernet

Signed-off-by: manuedelf <59697943+edelfour@users.noreply.github.com>

gnpy/api/rest_example.py

@@ -12,21 +12,20 @@ import logging
 from logging.handlers import RotatingFileHandler
 
 import werkzeug
-from flask import Flask
+from flask_injector import FlaskInjector
+from injector import singleton
 from werkzeug.exceptions import InternalServerError
 
 import gnpy.core.exceptions as exceptions
+from gnpy.api import app
 from gnpy.api.exception.exception_handler import bad_request_handler, common_error_handler
+from gnpy.api.exception.topology_error import TopologyError
+from gnpy.api.service import config_service
+from gnpy.api.service.encryption_service import EncryptionService
+from gnpy.api.service.equipment_service import EquipmentService
 
 _logger = logging.getLogger(__name__)
 
-from gnpy.api import app
-
-
-@app.route('/api/v1/status', methods=['GET'])
-def api_status():
-    return {"version": "v1", "status": "ok"}, 200
-
 
 def _init_logger():
     handler = RotatingFileHandler('api.log', maxBytes=1024 * 1024, backupCount=5, encoding='utf-8')
@@ -36,7 +35,7 @@ def _init_logger():
                                "message)s")
 
 
-def _init_app():
+def _init_app(key):
     app.register_error_handler(KeyError, bad_request_handler)
     app.register_error_handler(TypeError, bad_request_handler)
     app.register_error_handler(ValueError, bad_request_handler)
@@ -49,14 +48,29 @@ def _init_app():
     app.register_error_handler(exceptions.ParametersError, bad_request_handler)
     app.register_error_handler(AssertionError, bad_request_handler)
     app.register_error_handler(InternalServerError, common_error_handler)
+    app.register_error_handler(TopologyError, bad_request_handler)
     for error_code in werkzeug.exceptions.default_exceptions:
         app.register_error_handler(error_code, common_error_handler)
+    config = config_service.init_config()
+    config.add_section('SECRET')
+    config.set('SECRET', 'equipment', key)
+    app.config['properties'] = config
+
+
+def _configure(binder):
+    binder.bind(EquipmentService,
+                to=EquipmentService(EncryptionService(app.config['properties'].get('SECRET', 'equipment'))),
+                scope=singleton)
+    app.config['properties'].pop('SECRET', None)
 
 
 def main():
+    key = input('Enter encryption/decryption key: ')
     _init_logger()
-    _init_app()
-    app.run(host='0.0.0.0', port=8080)
+    _init_app(key)
+    FlaskInjector(app=app, modules=[_configure])
+
+    app.run(host='0.0.0.0', port=8080, ssl_context='adhoc')
 
 
 if __name__ == '__main__':