#3885 handle hyphens in domain name, enhance validation checks

1 files changed, 64 insertions, 0 deletions

diff --git a/test/mitmproxy/net/test_check.py b/test/mitmproxy/net/test_check.py
index 0ffd6b2e..e9258d7c 100644
--- a/test/mitmproxy/net/test_check.py
+++ b/test/mitmproxy/net/test_check.py
@@ -12,3 +12,67 @@ def test_is_valid_host():
     # Allow underscore
     assert check.is_valid_host(b"one_two")
     assert check.is_valid_host(b"::1")
+
+    # IPv6 Validations
+    assert check.is_valid_host(b'2001:0db8:85a3:0000:0000:8a2e:0370:7334')
+    assert check.is_valid_host(b'2001:db8:85a3:0:0:8a2e:370:7334')
+    assert check.is_valid_host(b'2001:db8:85a3::8a2e:370:7334')
+    assert not check.is_valid_host(b'2001:db8::85a3::7334')
+    assert check.is_valid_host(b'2001-db8-85a3-8d3-1319-8a2e-370-7348.ipv6-literal.net')
+
+    # TLD must be between 2 and 63 chars
+    assert not check.is_valid_host(b'example.t')
+    assert check.is_valid_host(b'example.tl')
+    assert check.is_valid_host(b'example.tld')
+    assert check.is_valid_host(b'example.' + b"x" * 63)
+    assert not check.is_valid_host(b'example.' + b"x" * 64)
+
+    # misc characters test
+    assert not check.is_valid_host(b'ex@mple')
+    assert not check.is_valid_host(b'ex@mple.com')
+    assert not check.is_valid_host(b'example..com')
+    assert not check.is_valid_host(b'.example.com')
+    assert not check.is_valid_host(b'@.example.com')
+    assert not check.is_valid_host(b'!.example.com')
+
+    # Every label must be between 1 and 63 chars
+    #assert not check.is_valid_host('.tld')
+    assert check.is_valid_host(b'x' * 1 + b'.tld')
+    assert check.is_valid_host(b'x' * 30 + b'.tld')
+    assert not check.is_valid_host(b'x' * 64 + b'.tld')
+    assert check.is_valid_host(b'x' * 1 + b'.example.tld')
+    assert check.is_valid_host(b'x' * 30 + b'.example.tld')
+    assert not check.is_valid_host(b'x' * 64 + b'.example.tld')
+
+    # Misc Underscore Test Cases
+    assert check.is_valid_host(b'_example')
+    assert check.is_valid_host(b'_example_')
+    assert check.is_valid_host(b'example_')
+    assert check.is_valid_host(b'_a.example.tld')
+    assert check.is_valid_host(b'a_.example.tld')
+    assert check.is_valid_host(b'_a_.example.tld')
+    assert not check.is_valid_host(b'a._example')
+    assert not check.is_valid_host(b'a._example_')
+    assert not check.is_valid_host(b'a.example_')
+
+	# Misc Dash/Hyphen/Minus Test Cases
+    assert check.is_valid_host(b'-example')
+    assert check.is_valid_host(b'-example_')
+    assert check.is_valid_host(b'example-')
+    assert check.is_valid_host(b'-a.example.tld')
+    assert check.is_valid_host(b'a-.example.tld')
+    assert check.is_valid_host(b'-a-.example.tld')
+    assert not check.is_valid_host(b'a.-example')
+    assert not check.is_valid_host(b'a.-example-')
+    assert not check.is_valid_host(b'a.example-')
+
+    # Misc Combo Test Cases
+    assert check.is_valid_host(b'api-.example.com')
+    assert check.is_valid_host(b'__a.example-site.com')
+    assert check.is_valid_host(b'_-a.example-site.com')
+    assert check.is_valid_host(b'_a_.example-site.com')
+    assert check.is_valid_host(b'-a-.example-site.com')
+    assert check.is_valid_host(b'api-.a.example.com')
+    assert check.is_valid_host(b'api-._a.example.com')
+    assert check.is_valid_host(b'api-.a_.example.com')
+    assert check.is_valid_host(b'api-.ab.example.com')
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