mercurial/dummycert.pem

chgserver: invalidate the server if extensions fail to load

Previously, if extensions fail to load, chg server will just keep working
without those extensions. It will print a warning message but only if a new
server starts.

This patch invalidates the server if any extension failed to load, but still
serve the client (hopefully just) once. It will help chg pass some test cases
of test-bad-extension.t.

A dummy certificate that will make OS X 10.6+ Python use the system CA
certificate store:

-----BEGIN CERTIFICATE-----
MIIBIzCBzgIJANjmj39sb3FmMA0GCSqGSIb3DQEBBQUAMBkxFzAVBgNVBAMTDmhn
LmV4YW1wbGUuY29tMB4XDTE0MDgzMDA4NDU1OVoXDTE0MDgyOTA4NDU1OVowGTEX
MBUGA1UEAxMOaGcuZXhhbXBsZS5jb20wXDANBgkqhkiG9w0BAQEFAANLADBIAkEA
mh/ZySGlcq0ALNLmA1gZqt61HruywPrRk6WyrLJRgt+X7OP9FFlEfl2tzHfzqvmK
CtSQoPINWOdAJMekBYFgKQIDAQABMA0GCSqGSIb3DQEBBQUAA0EAF9h49LkSqJ6a
IlpogZuUHtihXeKZBsiktVIDlDccYsNy0RSh9XxUfhk+XMLw8jBlYvcltSXdJ7We
aKdQRekuMQ==
-----END CERTIFICATE-----

This certificate was generated to be syntactically valid but never be usable;
it expired before it became valid.

Created as:

  $ cat > cn.conf << EOT
  > [req]
  > distinguished_name = req_distinguished_name
  > [req_distinguished_name]
  > commonName = Common Name
  > commonName_default = no.example.com
  > EOT
  $ openssl req -nodes -new -x509 -keyout /dev/null \
  >   -out dummycert.pem -days -1 -config cn.conf -subj '/CN=hg.example.com'

To verify the content of this certificate:

  $ openssl x509 -in dummycert.pem -noout -text
  Certificate:
      Data:
          Version: 1 (0x0)
          Serial Number: 15629337334278746470 (0xd8e68f7f6c6f7166)
      Signature Algorithm: sha1WithRSAEncryption
          Issuer: CN=hg.example.com
          Validity
              Not Before: Aug 30 08:45:59 2014 GMT
              Not After : Aug 29 08:45:59 2014 GMT
          Subject: CN=hg.example.com
          Subject Public Key Info:
              Public Key Algorithm: rsaEncryption
                  Public-Key: (512 bit)
                  Modulus:
                      00:9a:1f:d9:c9:21:a5:72:ad:00:2c:d2:e6:03:58:
                      19:aa:de:b5:1e:bb:b2:c0:fa:d1:93:a5:b2:ac:b2:
                      51:82:df:97:ec:e3:fd:14:59:44:7e:5d:ad:cc:77:
                      f3:aa:f9:8a:0a:d4:90:a0:f2:0d:58:e7:40:24:c7:
                      a4:05:81:60:29
                  Exponent: 65537 (0x10001)
      Signature Algorithm: sha1WithRSAEncryption
           17:d8:78:f4:b9:12:a8:9e:9a:22:5a:68:81:9b:94:1e:d8:a1:
           5d:e2:99:06:c8:a4:b5:52:03:94:37:1c:62:c3:72:d1:14:a1:
           f5:7c:54:7e:19:3e:5c:c2:f0:f2:30:65:62:f7:25:b5:25:dd:
           27:b5:9e:68:a7:50:45:e9:2e:31