1 files changed, 177 insertions, 0 deletions
diff --git a/src/services/api/graphql/session/session.py b/src/services/api/graphql/session/session.py
new file mode 100644
index 000000000..0b77b1433
--- /dev/null
+++ b/src/services/api/graphql/session/session.py
@@ -0,0 +1,177 @@
+# Copyright 2021-2022 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library 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 2.1 of the License, or (at your option) any later version.
+#
+# This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import json
+
+from ariadne import convert_camel_case_to_snake
+
+from vyos.config import Config
+from vyos.configtree import ConfigTree
+from vyos.defaults import directories
+from vyos.template import render
+from vyos.opmode import Error as OpModeError
+
+from api.graphql.libs.op_mode import load_op_mode_as_module, split_compound_op_mode_name
+from api.graphql.libs.op_mode import normalize_output
+
+op_mode_include_file = os.path.join(directories['data'], 'op-mode-standardized.json')
+
+class Session:
+    """
+    Wrapper for calling configsession functions based on GraphQL requests.
+    Non-nullable fields in the respective schema allow avoiding a key check
+    in 'data'.
+    """
+    def __init__(self, session, data):
+        self._session = session
+        self._data = data
+        self._name = convert_camel_case_to_snake(type(self).__name__)
+
+        try:
+            with open(op_mode_include_file) as f:
+                self._op_mode_list = json.loads(f.read())
+        except Exception:
+            self._op_mode_list = None
+
+    def show_config(self):
+        session = self._session
+        data = self._data
+        out = ''
+
+        try:
+            out = session.show_config(data['path'])
+            if data.get('config_format', '') == 'json':
+                config_tree = ConfigTree(out)
+                out = json.loads(config_tree.to_json())
+        except Exception as error:
+            raise error
+
+        return out
+
+    def save_config_file(self):
+        session = self._session
+        data = self._data
+        if 'file_name' not in data or not data['file_name']:
+            data['file_name'] = '/config/config.boot'
+
+        try:
+            session.save_config(data['file_name'])
+        except Exception as error:
+            raise error
+
+    def load_config_file(self):
+        session = self._session
+        data = self._data
+
+        try:
+            session.load_config(data['file_name'])
+            session.commit()
+        except Exception as error:
+            raise error
+
+    def show(self):
+        session = self._session
+        data = self._data
+        out = ''
+
+        try:
+            out = session.show(data['path'])
+        except Exception as error:
+            raise error
+
+        return out
+
+    def add_system_image(self):
+        session = self._session
+        data = self._data
+
+        try:
+            res = session.install_image(data['location'])
+        except Exception as error:
+            raise error
+
+        return res
+
+    def delete_system_image(self):
+        session = self._session
+        data = self._data
+
+        try:
+            res = session.remove_image(data['name'])
+        except Exception as error:
+            raise error
+
+        return res
+
+    def system_status(self):
+        import api.graphql.session.composite.system_status as system_status
+
+        session = self._session
+        data = self._data
+
+        status = {}
+        status['host_name'] = session.show(['host', 'name']).strip()
+        status['version'] = system_status.get_system_version()
+        status['uptime'] = system_status.get_system_uptime()
+        status['ram'] = system_status.get_system_ram_usage()
+
+        return status
+
+    def gen_op_query(self):
+        session = self._session
+        data = self._data
+        name = self._name
+        op_mode_list = self._op_mode_list
+
+        # handle the case that the op-mode file contains underscores:
+        if op_mode_list is None:
+            raise FileNotFoundError(f"No op-mode file list at '{op_mode_include_file}'")
+        (func_name, scriptname) = split_compound_op_mode_name(name, op_mode_list)
+        if scriptname == '':
+            raise FileNotFoundError(f"No op-mode file named in string '{name}'")
+
+        mod = load_op_mode_as_module(f'{scriptname}')
+        func = getattr(mod, func_name)
+        try:
+            res = func(True, **data)
+        except OpModeError as e:
+            raise e
+
+        res = normalize_output(res)
+
+        return res
+
+    def gen_op_mutation(self):
+        session = self._session
+        data = self._data
+        name = self._name
+        op_mode_list = self._op_mode_list
+
+        # handle the case that the op-mode file name contains underscores:
+        if op_mode_list is None:
+            raise FileNotFoundError(f"No op-mode file list at '{op_mode_include_file}'")
+        (func_name, scriptname) = split_compound_op_mode_name(name, op_mode_list)
+        if scriptname == '':
+            raise FileNotFoundError(f"No op-mode file named in string '{name}'")
+
+        mod = load_op_mode_as_module(f'{scriptname}')
+        func = getattr(mod, func_name)
+        try:
+            res = func(**data)
+        except OpModeError as e:
+            raise e
+
+        return res