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Resolve "Default Ciphers" Issue #16

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Resolve "Default Ciphers" Issue #16

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a8a5f74
Resolve "Default Ciphers" Issue
ehlewis Nov 25, 2023
63a524e
remove a debug line
ehlewis Nov 25, 2023
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4 changes: 2 additions & 2 deletions .gitignore
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@

.vscode/
.venv/
.vscode/
39 changes: 32 additions & 7 deletions humble.py
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Expand Up @@ -47,6 +47,7 @@
from argparse import ArgumentParser, HelpFormatter
import re
import sys
import ssl
import json
import requests
import platform
Expand Down Expand Up @@ -87,6 +88,37 @@
now = datetime.now().strftime("%Y/%m/%d - %H:%M:%S")
version = datetime.strptime('2023-11-24', '%Y-%m-%d').date()

FORCED_CIPHERS = ":".join(
[
"ECDHE+AESGCM",
"ECDHE+CHACHA20",
"DHE+AESGCM",
"DHE+CHACHA20",
"ECDH+AESGCM",
"DH+AESGCM",
"ECDH+AES",
"DH+AES",
"RSA+AESGCM",
"RSA+AES",
"!aNULL",
"!eNULL",
"!MD5",
"!DSS",
"HIGH",
"!DH"
]
)


class SSLContextAdapter(requests.adapters.HTTPAdapter):
def init_poolmanager(self, *args, **kwargs):
context = ssl.create_default_context()
context.set_ciphers(FORCED_CIPHERS)
kwargs['ssl_context'] = context
return super(SSLContextAdapter, self).init_poolmanager(*args, **kwargs)

requests.Session().mount('http://', SSLContextAdapter())
requests.Session().mount('https://', SSLContextAdapter())

class PDF(FPDF):

Expand Down Expand Up @@ -1053,13 +1085,6 @@ def custom_help_formatter(prog):
print("")
print_detail(detail)

# Regarding 'dh key too small' errors: https://stackoverflow.com/a/41041028
requests.packages.urllib3.util.ssl_.DEFAULT_CIPHERS += ':HIGH:!DH:!aNULL'
try:
requests.packages.urllib3.contrib.pyopenssl.util.ssl_.DEFAULT_CIPHERS \
+= ':HIGH:!DH:!aNULL'
except AttributeError:
pass

exception_d = {
requests.exceptions.ConnectionError: '[e_404]',
Expand Down