mitmproxy/test/test_certutils.py

import os
from netlib import certutils
import tutils


def test_dummy_ca():
    with tutils.tmpdir() as d:
        path = os.path.join(d, "foo/cert.cnf")
        assert certutils.dummy_ca(path)
        assert os.path.exists(path)

        path = os.path.join(d, "foo/cert2.pem")
        assert certutils.dummy_ca(path)
        assert os.path.exists(path)
        assert os.path.exists(os.path.join(d, "foo/cert2-cert.pem"))
        assert os.path.exists(os.path.join(d, "foo/cert2-cert.p12"))


class TestCertStore:
    def test_create_explicit(self):
        with tutils.tmpdir() as d:
            ca = os.path.join(d, "ca")
            assert certutils.dummy_ca(ca)
            c = certutils.CertStore(d)
            c.cleanup()
            assert os.path.exists(d)

    def test_create_tmp(self):
        with tutils.tmpdir() as d:
            ca = os.path.join(d, "ca")
            assert certutils.dummy_ca(ca)
            c = certutils.CertStore()
            assert not c.get_cert("../foo.com", [])
            assert not c.get_cert("foo.com", [])
            assert c.get_cert("foo.com", [], ca)
            assert c.get_cert("foo.com", [], ca)
            c.cleanup()

    def test_check_domain(self):
        c = certutils.CertStore()
        assert c.check_domain("foo")
        assert c.check_domain("\x01foo")
        assert not c.check_domain("\xfefoo")
        assert not c.check_domain("xn--\0")
        assert not c.check_domain("foo..foo")
        assert not c.check_domain("foo/foo")


class TestDummyCert:
    def test_with_ca(self):
        with tutils.tmpdir() as d:
            cacert = os.path.join(d, "cacert")
            assert certutils.dummy_ca(cacert)
            p = os.path.join(d, "foo")
            certutils.dummy_cert(
                file(p, "wb"),
                cacert,
                "foo.com",
                ["one.com", "two.com", "*.three.com"]
            )
            assert file(p,"rb").read()



class TestSSLCert:
    def test_simple(self):
        c = certutils.SSLCert.from_pem(file(tutils.test_data.path("data/text_cert"), "rb").read())
        assert c.cn == "google.com"
        assert len(c.altnames) == 436

        c = certutils.SSLCert.from_pem(file(tutils.test_data.path("data/text_cert_2"), "rb").read())
        assert c.cn == "www.inode.co.nz"
        assert len(c.altnames) == 2
        assert c.digest("sha1")
        assert c.notbefore
        assert c.notafter
        assert c.subject
        assert c.keyinfo == ("RSA", 2048)
        assert c.serial
        assert c.issuer
        assert c.to_pem()
        c.has_expired

    def test_err_broken_sans(self):
        c = certutils.SSLCert.from_pem(file(tutils.test_data.path("data/text_cert_weird1"), "rb").read())
        # This breaks unless we ignore a decoding error.
        c.altnames

    def test_der(self):
        d = file(tutils.test_data.path("data/dercert"),"rb").read()
        s = certutils.SSLCert.from_der(d)
        assert s.cn