esim.es9p: Suppress sending requestHeader on ES9+

SGP.22 states that ES9+ should not include a requestHeader

Change-Id: Ic9aa874a82241d7b26e2bcb0423961173e103020

contrib/es9p_client.py

@@ -39,7 +39,6 @@ logging.basicConfig(level=logging.DEBUG)
 parser = argparse.ArgumentParser(description="""
 Utility to manually issue requests against the ES9+ API of an SM-DP+ according to GSMA SGP.22.""")
 parser.add_argument('--url', required=True, help='Base URL of ES9+ API endpoint')
-parser.add_argument('--id', default='osmocom pySim', help='Entity identifier passed to SM-DP+')
 parser.add_argument('--server-ca-cert', help="""X.509 CA certificates acceptable for the server side. In
                     production use cases, this would be the GSMA Root CA (CI) certificate.""")
 subparsers = parser.add_subparsers(dest='command',help="The command (API function) to call", required=True)
@@ -87,7 +86,7 @@ def do_download(opts):
     print("CI PKID: %s" % b2h(ci_pkid))
     print()
 
-    peer = es9p.Es9pApiClient(opts.url, opts.id, server_cert_verify=opts.server_ca_cert)
+    peer = es9p.Es9pApiClient(opts.url, server_cert_verify=opts.server_ca_cert)
 
     print("Step 1: InitiateAuthentication...")
 

pySim/esim/es9p.py

@@ -148,35 +148,29 @@ class CancelSession(Es9PlusApiFunction):
     input_mandatory = ['transactionId', 'cancelSessionResponse']
 
 class Es9pApiClient:
-    def __init__(self, url_prefix:str, func_req_id:str, server_cert_verify: str = None):
-        self.func_id = 0
+    def __init__(self, url_prefix:str, server_cert_verify: str = None):
         self.session = requests.Session()
         self.session.verify = False # FIXME HACK
         if server_cert_verify:
             self.session.verify = server_cert_verify
 
-        self.initiateAuthentication = InitiateAuthentication(url_prefix, func_req_id, self.session)
-        self.authenticateClient = AuthenticateClient(url_prefix, func_req_id, self.session)
-        self.getBoundProfilePackage = GetBoundProfilePackage(url_prefix, func_req_id, self.session)
-        self.handleNotification = HandleNotification(url_prefix, func_req_id, self.session)
-        self.cancelSession = CancelSession(url_prefix, func_req_id, self.session)
-
-    def _gen_func_id(self) -> str:
-        """Generate the next function call id."""
-        self.func_id += 1
-        return 'FCI-%u-%u' % (time.time(), self.func_id)
+        self.initiateAuthentication = InitiateAuthentication(url_prefix, '', self.session)
+        self.authenticateClient = AuthenticateClient(url_prefix, '', self.session)
+        self.getBoundProfilePackage = GetBoundProfilePackage(url_prefix, '', self.session)
+        self.handleNotification = HandleNotification(url_prefix, '', self.session)
+        self.cancelSession = CancelSession(url_prefix, '', self.session)
 
     def call_initiateAuthentication(self, data: dict) -> dict:
-        return self.initiateAuthentication.call(data, self._gen_func_id())
+        return self.initiateAuthentication.call(data)
 
     def call_authenticateClient(self, data: dict) -> dict:
-        return self.authenticateClient.call(data, self._gen_func_id())
+        return self.authenticateClient.call(data)
 
     def call_getBoundProfilePackage(self, data: dict) -> dict:
-        return self.getBoundProfilePackage.call(data, self._gen_func_id())
+        return self.getBoundProfilePackage.call(data)
 
     def call_handleNotification(self, data: dict) -> dict:
-        return self.handleNotification.call(data, self._gen_func_id())
+        return self.handleNotification.call(data)
 
     def call_cancelSession(self, data: dict) -> dict:
-        return self.cancelSession.call(data, self._gen_func_id())
+        return self.cancelSession.call(data)

pySim/esim/http_json_api.py

@@ -19,6 +19,7 @@ import abc
 import requests
 import logging
 import json
+from typing import Optional
 import base64
 
 logger = logging.getLogger(__name__)
@@ -176,19 +177,20 @@ class JsonHttpApiFunction(abc.ABC):
     http_method = 'POST'
     extra_http_req_headers = {}
 
-    def __init__(self, url_prefix: str, func_req_id: str, session: requests.Session):
+    def __init__(self, url_prefix: str, func_req_id: Optional[str], session: requests.Session):
         self.url_prefix = url_prefix
         self.func_req_id = func_req_id
         self.session = session
 
-    def encode(self, data: dict, func_call_id: str) -> dict:
+    def encode(self, data: dict, func_call_id: Optional[str] = None) -> dict:
         """Validate an encode input dict into JSON-serializable dict for request body."""
-        output = {
-            'header': {
-                'functionRequesterIdentifier': self.func_req_id,
-                'functionCallIdentifier': func_call_id
-            }
-        }
+        output = {}
+        if func_call_id:
+            output['header'] = {
+                    'functionRequesterIdentifier': self.func_req_id,
+                    'functionCallIdentifier': func_call_id
+                }
+
         for p in self.input_mandatory:
             if not p in data:
                 raise ValueError('Mandatory input parameter %s missing' % p)
@@ -227,7 +229,7 @@ class JsonHttpApiFunction(abc.ABC):
                 output[p] = p_class.decode(v)
         return output
 
-    def call(self, data: dict, func_call_id:str, timeout=10) -> dict:
+    def call(self, data: dict, func_call_id: Optional[str] = None, timeout=10) -> dict:
         """Make an API call to the HTTP API endpoint represented by this object.
         Input data is passed in `data` as json-serializable dict.  Output data
         is returned as json-deserialized dict."""