--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/Resources/Patches/OpenSSL-ExtractProvidersOIDs.py	Tue Jun 22 07:09:34 2021 +0200
@@ -0,0 +1,71 @@
+#!/usr/bin/env python
+
+# Orthanc - A Lightweight, RESTful DICOM Store
+# Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+# Department, University Hospital of Liege, Belgium
+# Copyright (C) 2017-2021 Osimis S.A., Belgium
+#
+# This program is free software: you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public License
+# as published by the Free Software Foundation, either version 3 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program. If not, see
+# <http://www.gnu.org/licenses/>.
+
+
+##
+## This is a maintenance script to automatically extract the OIDs
+## generated from the ".asn1" files by the OpenSSL configuration
+## script "./Configure". This script generates the file
+## "OpenSSL-ExtractProvidersOIDs.json". The output JSON is then used
+## by "OpenSSL-ConfigureHeaders.py".
+##
+
+
+import json
+import os
+import re
+import sys
+
+if len(sys.argv) != 2:
+    raise Exception('Provide the path to your configured OpenSSL 3.x build directory')
+
+BASE = os.path.join(sys.argv[1], 'providers/common/include/prov')
+TARGET = 'OpenSSL-ExtractProvidersOIDs.json'
+RESULT = {}
+
+
+for source in os.listdir(BASE):
+    if source.endswith('.h.in'):
+        path = os.path.join(BASE, re.sub('.in$', '', source))
+
+        content = {}
+        
+        with open(path, 'r') as f:
+            for definition in re.findall('#define (DER_OID_V_.+?)#define (DER_OID_SZ_.+?)extern const(.+?)$', f.read(), re.MULTILINE | re.DOTALL):
+                oid = definition[0].strip().split(' ')
+                
+                name = oid[0].replace('DER_OID_V_', '')
+                oid = oid[1:]
+
+                sizes = definition[1].strip().split(' ')
+                if (name in content or
+                    len(sizes) != 2 or
+                    sizes[0] != 'DER_OID_SZ_%s' % name or
+                    int(sizes[1]) != len(oid)):
+                    raise Exception('Cannot parse %s, for OID %s' % (path, name))
+
+                content[name] = list(map(lambda x: x.replace(',', ''), oid))
+
+        RESULT[source] = content
+
+
+with open(os.path.join(os.path.dirname(os.path.realpath(__file__)), TARGET), 'w') as f:
+    f.write(json.dumps(RESULT, sort_keys = True, indent = 4))