Correct OIDC URL generation and raise max payload size (#3486)

* Raise max request payload size to 100Gb
* Replace some urljoin() calls with simple string concatenation

lib/pbench/server/auth/__init__.py

@@ -4,7 +4,6 @@
 from http import HTTPStatus
 import logging
 from typing import Any, Optional
-from urllib.parse import urljoin
 
 import jwt
 import requests
@@ -54,7 +53,7 @@ def _method(
 
         Args:
             method : The API HTTP method
-            path : Path for the request.
+            path : Path for the request (must begin with a slash).
             data : Form data to send with the request in case of the POST
             json : JSON data to send with the request in case of the POST
             kwargs : Additional keyword args
@@ -65,7 +64,7 @@ def _method(
         final_headers = self.headers.copy()
         if headers is not None:
             final_headers.update(headers)
-        url = urljoin(self.server_url, path)
+        url = self.server_url + path
         request_dict = dict(
             params=kwargs,
             data=data,
@@ -322,7 +321,7 @@ def __repr__(self):
         )
 
     def set_oidc_public_key(self):
-        realm_public_key_uri = f"realms/{self._realm_name}"
+        realm_public_key_uri = f"/realms/{self._realm_name}"
         response_json = self._connection.get(realm_public_key_uri).json()
         public_key = response_json["public_key"]
         pem_public_key = "-----BEGIN PUBLIC KEY-----\n"

lib/pbench/test/unit/server/conftest.py

@@ -10,7 +10,6 @@
 from stat import ST_MTIME
 import tarfile
 from typing import Dict, Optional
-from urllib.parse import urljoin
 import uuid
 
 from cryptography.hazmat.primitives.asymmetric import rsa
@@ -165,7 +164,7 @@ def add_auth_connection_mock(server_config, rsa_keys):
     with responses.RequestsMock() as mock:
         oidc_server = server_config.get("openid", "server_url")
         oidc_realm = server_config.get("openid", "realm")
-        url = urljoin(oidc_server, f"realms/{oidc_realm}")
+        url = oidc_server + "/realms/" + oidc_realm
 
         mock.add(
             responses.GET,

server/lib/config/nginx.conf

@@ -121,7 +121,7 @@ http {
             proxy_set_header         X-Real-IP         $remote_addr;
             proxy_set_header         X-Forwarded-Proto $scheme;
 
-            client_max_body_size     10G;
+            client_max_body_size     100G;
         }
 
         location /dashboard {