From f868b0eacb916f9e6c7a06859ab83db3c438c3a7 Mon Sep 17 00:00:00 2001
From: Daniel Borges de Oliveira <danielbo17@hotmail.com>
Date: Sun, 26 Feb 2023 01:22:05 -0300
Subject: [PATCH] Add support to change the source IP.

---
 noipy/main.py    | 3 ++-
 noipy/utils.py   | 9 +++++++--
 requirements.txt | 1 +
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/noipy/main.py b/noipy/main.py
index 74c6fad..98c10c9 100644
--- a/noipy/main.py
+++ b/noipy/main.py
@@ -107,7 +107,7 @@ def execute_update(args):
     response_code = None
     response_text = None
     if update_ddns:
-        ip_address = args.ip if args.ip else utils.get_ip()
+        ip_address = args.ip if args.ip else utils.get_ip(args.sourceip)
         if not ip_address:
             process_message = 'Unable to get IP address. Check connection.'
             exec_result = EXECUTION_RESULT_NOK
@@ -137,6 +137,7 @@ def create_parser():
     parser.add_argument('-u', '--usertoken', help='provider username or token')
     parser.add_argument('-p', '--password', help='provider password when apply')
     parser.add_argument('-n', '--hostname', help='provider hostname to be updated')
+    parser.add_argument('-s', '--sourceip', help='source ip to use')
     parser.add_argument(
         '--provider',
         help='DDNS provider plugin (default: {})'.format(dnsupdater.DEFAULT_PLUGIN),
diff --git a/noipy/utils.py b/noipy/utils.py
index 60c6ec8..1205a15 100644
--- a/noipy/utils.py
+++ b/noipy/utils.py
@@ -8,6 +8,7 @@
 import socket
 
 import requests
+from requests_toolbelt.adapters import source
 
 HTTPBIN_URL = 'https://httpbin.org/ip'
 
@@ -21,10 +22,14 @@ def read_input(message):
     return input(message)
 
 
-def get_ip():
+def get_ip(source_ip):
     """Return machine's origin IP address."""
     try:
-        r = requests.get(HTTPBIN_URL)
+        s = requests.Session()
+        new_source = source.SourceAddressAdapter(source_ip)
+        s.mount('http://', new_source)
+        s.mount('https://', new_source)
+        r = s.get(HTTPBIN_URL)
         return r.json()['origin'] if r.status_code == 200 else None
     except requests.exceptions.ConnectionError:
         return None
diff --git a/requirements.txt b/requirements.txt
index a743bbe..7cd731f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
 requests==2.27.1
+requests-toolbelt=0.10.1
\ No newline at end of file