From d15af8e9fdc32bd2e3471a300d9cf32e8eff00a0 Mon Sep 17 00:00:00 2001
From: Viacheslav Hletenko <v.gletenko@vyos.io>
Date: Thu, 26 May 2022 09:06:39 +0000
Subject: http-api: T4442: Add action reset

Add action 'reset' (op-mode) for HTTP-API
http://localhost/reset

curl --unix-socket /run/api.sock -X POST -Fkey=mykey \
  -Fdata='{"op": "reset", "path": ["ip", "bgp", "192.0.2.14"]}' \
  http://localhost/reset
---
 data/templates/https/nginx.default.tmpl |  2 +-
 python/vyos/configsession.py            |  6 +++++-
 src/services/vyos-http-api-server       | 37 +++++++++++++++++++++++++++++++--
 3 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/data/templates/https/nginx.default.tmpl b/data/templates/https/nginx.default.tmpl
index 968ba806c..04e0d558a 100644
--- a/data/templates/https/nginx.default.tmpl
+++ b/data/templates/https/nginx.default.tmpl
@@ -41,7 +41,7 @@ server {
         ssl_protocols TLSv1.2 TLSv1.3;
 
         # proxy settings for HTTP API, if enabled; 503, if not
-        location ~ /(retrieve|configure|config-file|image|generate|show|docs|openapi.json|redoc|graphql) {
+        location ~ /(retrieve|configure|config-file|image|generate|show|reset|docs|openapi.json|redoc|graphql) {
 {% if server.api %}
 {% if server.api.socket %}
                 proxy_pass http://unix:/run/api.sock;
diff --git a/python/vyos/configsession.py b/python/vyos/configsession.py
index 670e6c7fc..d2645e5e1 100644
--- a/python/vyos/configsession.py
+++ b/python/vyos/configsession.py
@@ -1,5 +1,5 @@
 # configsession -- the write API for the VyOS running config
-# Copyright (C) 2019 VyOS maintainers and contributors
+# Copyright (C) 2019-2022 VyOS maintainers and contributors
 #
 # 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;
@@ -33,6 +33,7 @@ INSTALL_IMAGE = ['/opt/vyatta/sbin/install-image', '--url']
 REMOVE_IMAGE = ['/opt/vyatta/bin/vyatta-boot-image.pl', '--del']
 GENERATE = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'generate']
 SHOW = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'show']
+RESET = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'reset']
 
 # Default "commit via" string
 APP = "vyos-http-api"
@@ -201,3 +202,6 @@ class ConfigSession(object):
         out = self.__run_command(SHOW + path)
         return out
 
+    def reset(self, path):
+        out = self.__run_command(RESET + path)
+        return out
diff --git a/src/services/vyos-http-api-server b/src/services/vyos-http-api-server
index 1000d8b72..ed8cf6a44 100755
--- a/src/services/vyos-http-api-server
+++ b/src/services/vyos-http-api-server
@@ -1,6 +1,6 @@
 #!/usr/share/vyos-http-api-tools/bin/python3
 #
-# Copyright (C) 2019-2021 VyOS maintainers and contributors
+# Copyright (C) 2019-2022 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -201,6 +201,19 @@ class ShowModel(ApiModel):
             }
         }
 
+class ResetModel(ApiModel):
+    op: StrictStr
+    path: List[StrictStr]
+
+    class Config:
+        schema_extra = {
+            "example": {
+                "key": "id_key",
+                "op": "reset",
+                "path": ["op", "mode", "path"],
+            }
+        }
+
 class Success(BaseModel):
     success: bool
     data: Union[str, bool, Dict]
@@ -372,7 +385,7 @@ class MultipartRoute(APIRoute):
                         return error(400, "Malformed command \"{0}\": \"value\" field must be a string".format(json.dumps(request.offending_command)))
                     if request.ERR_PATH_NOT_LIST_OF_STR:
                         return error(400, "Malformed command \"{0}\": \"path\" field must be a list of strings".format(json.dumps(request.offending_command)))
-                if endpoint in ('/retrieve','/generate','/show'):
+                if endpoint in ('/retrieve','/generate','/show','reset'):
                     if request.ERR_NO_OP or request.ERR_NO_PATH:
                         return error(400, "Missing required field. \"op\" and \"path\" fields are required")
                 if endpoint in ('/config-file', '/image'):
@@ -607,6 +620,26 @@ def show_op(data: ShowModel):
 
     return success(res)
 
+@app.post('/reset')
+def reset_op(data: ResetModel):
+    session = app.state.vyos_session
+
+    op = data.op
+    path = data.path
+
+    try:
+        if op == 'reset':
+            res = session.reset(path)
+        else:
+            return error(400, "\"{0}\" is not a valid operation".format(op))
+    except ConfigSessionError as e:
+        return error(400, str(e))
+    except Exception as e:
+        logger.critical(traceback.format_exc())
+        return error(500, "An internal error occured. Check the logs for details.")
+
+    return success(res)
+
 ###
 # GraphQL integration
 ###
-- 
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