check if tha exists before enabling

Author: yungwine

mytoncore/mytoncore.py

@@ -33,6 +33,8 @@
 	Dict, int2ip
 )
 
+from mytoninstaller.utils import enable_tha
+
 
 class MyTonCore():
 	def __init__(self, local):
@@ -3079,8 +3081,7 @@ def check_enable_mode(self, name):
 				raise Exception(f'Cannot enable validator mode while liteserver mode is enabled. '
 								f'Use `disable_mode liteserver` first.')
 		if name == 'liquid-staking':
-			from mytoninstaller.settings import enable_ton_http_api
-			enable_ton_http_api(self.local)
+			enable_tha(self.local)
 
 	def enable_mode(self, name):
 		if name not in MODES:

mytoninstaller/utils.py

@@ -2,6 +2,8 @@
 import json
 import time
 import subprocess
+
+import requests
 from nacl.signing import SigningKey
 
 
@@ -50,3 +52,25 @@ def get_ed25519_pubkey(privkey):
 	pubkey = privkey_obj.verify_key.encode()
 	return pubkey
 #end define
+
+
+def tha_exists():
+	try:
+		resp = requests.get('http://127.0.0.1:8801/healthcheck', timeout=3)
+	except:
+		return False
+	if resp.status_code == 200 and resp.text == '"OK"':
+		return True
+	return False
+
+
+def enable_tha(local):
+	try:
+		if not tha_exists():
+			local.add_log("Enabling TON HTTP API", "debug")
+			from mytoninstaller.settings import enable_ton_http_api
+			enable_ton_http_api(local)
+			local.add_log("Enabled TON HTTP API", "debug")
+	except Exception as e:
+		local.add_log(f"Error in enable_tha: {e}", "warning")
+		pass