From f8b542b13989b8a4fe9df35b9d61f654c573afd3 Mon Sep 17 00:00:00 2001
From: Miguel Cuartin <miguel.cuartin@RCO-00715s-MacBook-Pro.local>
Date: Tue, 16 Feb 2021 10:34:42 -0500
Subject: [PATCH] Initial Commit

---
 .gitignore       |  1 +
 dnproxy.py       | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 dnproxy.yml      |  0
 requirements.txt | 11 +++++++++++
 4 files changed, 59 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 dnproxy.py
 create mode 100644 dnproxy.yml
 create mode 100644 requirements.txt

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f5e96db
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+venv
\ No newline at end of file
diff --git a/dnproxy.py b/dnproxy.py
new file mode 100644
index 0000000..2316413
--- /dev/null
+++ b/dnproxy.py
@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+
+import logging as l
+import socket
+
+from pyfiglet import Figlet
+
+import dns.flags
+import dns.message
+import dns.rdataclass
+import dns.rdatatype
+import dns.name
+import dns.query
+
+from typing import cast
+
+# General config
+l.basicConfig(level=l.INFO)
+f = Figlet(font='slant')
+
+l.info(f.renderText('dnproxy'))
+
+# General Parameters
+HOST = '127.0.0.1'
+PORT = 53
+UPSTREAM_IP = '1.1.1.1'
+TLS_HOSTNAME = 'cloudflare-dns.com'
+
+
+with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as s:
+    s.bind((HOST, PORT))
+    l.info(f"Listening on {HOST}:{PORT}")
+
+    while True:
+        (wire, host) = s.recvfrom(1024)
+        q = dns.message.from_wire(wire)
+        l.info(f'Question {q.id}:{q.question}')
+        
+        try:
+            r = dns.query.tls(q, UPSTREAM_IP, server_hostname=TLS_HOSTNAME)
+            l.info(f'Response {r.id}:{r.answer}')
+
+        except KeyError:
+            l.error("error")
+
+        wire = r.to_wire()
+        s.sendto(wire, host)
\ No newline at end of file
diff --git a/dnproxy.yml b/dnproxy.yml
new file mode 100644
index 0000000..e69de29
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..76e8b1c
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,11 @@
+certifi==2020.12.5
+cffi==1.14.5
+chardet==4.0.0
+cryptography==3.4.5
+dnspython==2.1.0
+idna==2.10
+pycparser==2.20
+pyfiglet==0.8.post1
+requests==2.25.1
+requests-toolbelt==0.9.1
+urllib3==1.26.3