firewalletbrowser/domainLookup.py

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2023-12-28 16:04:45 +11:00
import dns.resolver
from cryptography import x509
from cryptography.hazmat.backends import default_backend
import tempfile
import subprocess
import binascii
import datetime
import dns.asyncresolver
import httpx
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from requests_doh import DNSOverHTTPSSession, add_dns_provider
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import requests
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def hip2(domain: str):
domain_check = False
try:
# Get the IP
ip = resolve_with_doh(domain)
# Run the openssl s_client command
s_client_command = ["openssl","s_client","-showcerts","-connect",f"{ip}:443","-servername",domain,]
s_client_process = subprocess.Popen(s_client_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
s_client_output, _ = s_client_process.communicate(input=b"\n")
certificates = []
current_cert = ""
for line in s_client_output.split(b"\n"):
current_cert += line.decode("utf-8") + "\n"
if "-----END CERTIFICATE-----" in line.decode("utf-8"):
certificates.append(current_cert)
current_cert = ""
# Remove anything before -----BEGIN CERTIFICATE-----
certificates = [cert[cert.find("-----BEGIN CERTIFICATE-----"):] for cert in certificates]
if certificates:
cert = certificates[0]
with tempfile.NamedTemporaryFile(mode="w", delete=False) as temp_cert_file:
temp_cert_file.write(cert)
temp_cert_file.seek(0) # Move back to the beginning of the temporary file
tlsa_command = ["openssl","x509","-in",temp_cert_file.name,"-pubkey","-noout","|","openssl","pkey","-pubin","-outform","der","|","openssl","dgst","-sha256","-binary",]
tlsa_process = subprocess.Popen(" ".join(tlsa_command), shell=True, stdout=subprocess.PIPE)
tlsa_output, _ = tlsa_process.communicate()
tlsa_server = "3 1 1 " + binascii.hexlify(tlsa_output).decode("utf-8")
# Get domains
cert_obj = x509.load_pem_x509_certificate(cert.encode("utf-8"), default_backend())
domains = []
for ext in cert_obj.extensions:
if ext.oid == x509.ExtensionOID.SUBJECT_ALTERNATIVE_NAME:
san_list = ext.value.get_values_for_type(x509.DNSName)
domains.extend(san_list)
# Extract the common name (CN) from the subject
common_name = cert_obj.subject.get_attributes_for_oid(x509.NameOID.COMMON_NAME)
if common_name:
if common_name[0].value not in domains:
domains.append(common_name[0].value)
if domains:
if domain in domains:
domain_check = True
else:
# Check if matching wildcard domain exists
for d in domains:
if d.startswith("*"):
if domain.split(".")[1:] == d.split(".")[1:]:
domain_check = True
break
expiry_date = cert_obj.not_valid_after
# Check if expiry date is past
if expiry_date < datetime.datetime.now():
return "Hip2: Certificate is expired"
else:
return "Hip2: No certificate found"
try:
# Check for TLSA record
tlsa = resolve_TLSA_with_doh(domain)
if not tlsa:
return "Hip2: TLSA lookup failed"
else:
if tlsa_server == str(tlsa):
if domain_check:
# Get the Hip2 addresss from /.well-known/wallets/HNS
add_dns_provider("HNSDoH", "https://hnsdoh.com/dns-query")
session = DNSOverHTTPSSession("HNSDoH")
r = session.get(f"https://{domain}/.well-known/wallets/HNS",verify=False)
return r.text
else:
return "Hip2: TLSA record matches certificate, but domain does not match certificate"
else:
return "Hip2: TLSA record does not match certificate"
except Exception as e:
return "Hip2: TLSA lookup failed with error: " + str(e)
# Catch all exceptions
except Exception as e:
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return "Hip2: Lookup failed."
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def resolve_with_doh(query_name, doh_url="https://hnsdoh.com/dns-query"):
with httpx.Client() as client:
q = dns.message.make_query(query_name, dns.rdatatype.A)
r = dns.query.https(q, doh_url, session=client)
ip = r.answer[0][0].address
return ip
def resolve_TLSA_with_doh(query_name, doh_url="https://hnsdoh.com/dns-query"):
query_name = "_443._tcp." + query_name
with httpx.Client() as client:
q = dns.message.make_query(query_name, dns.rdatatype.TLSA)
r = dns.query.https(q, doh_url, session=client)
tlsa = r.answer[0][0]
return tlsa
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def niami_info(domain: str):
response = requests.get(f"https://api.niami.io/hsd/{domain}")
if response.status_code != 200:
return False
response = response.json()
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if response["data"]["owner_tx_data"] is not None:
output = {
"owner": response["data"]["owner_tx_data"]["address"],
"dns": response["data"]["dnsData"]
}
else:
output = {
"owner": None,
"dns": []
}
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transactions = requests.get(f"https://api.niami.io/txs/{domain}")
if transactions.status_code != 200:
return False
transactions = transactions.json()
output["txs"] = transactions["txs"]
return output
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def emoji_to_punycode(emoji):
try:
return emoji.encode("idna").decode("ascii")
except Exception as e:
return ""