From 91e42aba6dd51a0e389235360283b44785cb8cb1 Mon Sep 17 00:00:00 2001
From: Sale Djenic <aleksandardjenic@status.im>
Date: Wed, 23 Feb 2022 15:27:44 +0100
Subject: [PATCH] fix(@dekstop/chat): creating a chat with numeric only crashes
 the app

Fixes #4860
---
 src/app_service/service/contacts/async_tasks.nim |  2 --
 src/app_service/service/contacts/service.nim     | 12 ++++++++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/app_service/service/contacts/async_tasks.nim b/src/app_service/service/contacts/async_tasks.nim
index b4663a7634..3f32ce46d0 100644
--- a/src/app_service/service/contacts/async_tasks.nim
+++ b/src/app_service/service/contacts/async_tasks.nim
@@ -8,8 +8,6 @@ include ../../../app/core/tasks/common
 # Async lookup ENS contact
 #################################################
 
-const PK_LENGTH_0X_INCLUDED = 132
-
 type
   LookupContactTaskArg = ref object of QObjectTaskArg
     value: string
diff --git a/src/app_service/service/contacts/service.nim b/src/app_service/service/contacts/service.nim
index a820c3c2d1..4480a862f2 100644
--- a/src/app_service/service/contacts/service.nim
+++ b/src/app_service/service/contacts/service.nim
@@ -16,6 +16,8 @@ import ../../../backend/utils as status_utils
 
 export contacts_dto, status_update_dto, contact_details
 
+const PK_LENGTH_0X_INCLUDED = 132
+
 include async_tasks
 
 logScope:
@@ -211,6 +213,16 @@ QtObject:
 
     result = self.fetchContact(id)
     if result.id.len == 0:
+      if(not id.startsWith("0x")):
+        debug "id is not in a hex format"
+        return
+      
+      var num64: int64
+      let parsedChars = parseHex(id, num64)
+      if(parsedChars != PK_LENGTH_0X_INCLUDED):
+        debug "id doesn't have expected lenght"
+        return 
+
       let alias = self.generateAlias(id)
       let identicon = self.generateIdenticonURL(id)
       result = ContactsDto(