This commit adds support for Dyn, specifically Dyn Managed DNS. Makes
use of the Dyn REST API [1] and requires 3 environment variables for
credentails:
DYN_CUSTOMER_NAME
DYN_USER_NAME
DYN_PASSWORD
The Dyn DNS API requires a session to be established first using the
credentials above, After creating a session an api token is used for
subsequent requests.
The unit test performs a "live test" and currently requires a valid Dyn
account and domain.
[1] https://help.dyn.com/rest/
- Reworked the code in dns_challenge.go to not assume nameserver is
port-less or defaults to 53. (messes up testing)
- Updated nameserver test to clear the fqdn2zone cache and return a dummy
SOA RR to make initial findZoneByFqdn call happy.
- Used publicsuffix library to determine if the "authorative" zone we found
is a public registry, in that case error out. (Also used by boulder btw)
- Removal of RFC2136_ZONE from help text
- Query nameserver directly to find zone we have to update
- During insert, make sure the new record is the ONLY challence.
(I had a few panics, hence 3 challences left. Not good.)
Prior to this commit, the checkDNSPropagation function was exiting
early if the TXT record could not be found on the recursive
nameserver, and thus the authoritative nameservers were not being
queried until after the record showed up on the recursive nameserver
causing a delay.
This commit changes that behaviour so that the authoritative
nameservers are queried on each execution of checkDNSPropagation when
possible.
This will prevent indefinitely-hanging requests in case some service or middle box is malfunctioning.
Fix vet errors and lint warnings
Add vet to CI check
Only get issuer certificate if it would be used
No need to make a GET request if the OCSP server is not specified in leaf certificate
Fix CI tests
Make tests verbose
The default AWS HTTP client retries three times with a deadline of 10 seconds in order to fetch metadata from EC2. Replaced the default HTTP client with one that does not retry and has a low timeout.
Add a new environment variable RFC2136_TSIG_ALGORITHM that accepts the
TSIG algorithm pseudo-domain name. Let it default to
"hmac-md5.sig-alg.reg.int." if unset.
* Gets a list of all authoritative nameservers by looking up the NS RRs for the root domain (zone apex)
* Verifies that the expected TXT record exists on all nameservers before sending off the challenge to ACME server
If TCP connection reuse (KeepAlives) are left on then, in a sequence
of challenges arising from a multiple-domain certficate, challenges
after the 1st can fail due to reusing the now defunct tcp connection
used in the first challenge. This has been observed when using the Go
standard library reverse proxy to forward the challenges to Lego.
Fixes#107
AWS client tools commonly support passing credentials via
`AWS_ACCESS_KEY_ID` + `AWS_SECRET_ACCESS_KEY`, but supporting only this is
insufficient. For example, access key IDs provided by STS require passing in
`AWS_SECURITY_TOKEN` as a third value, and EC2 instances are often provided
dynamic credentials at runtime via the EC2 metadata service.
This changeset makes `lego` attempt to find credentials in the same way that
the `aws` CLI tool attempts to find credentials. The result is even less
auth code than before because `goamz` provides all this with `aws.GetAuth()`.
- InvalidTXTRDATA error when creating TXT record (closes#94)
- Present() should poll and wait until the status of the record change becomes INSYNC (thanks @oov)
Adds a retry/timeout utility function to dns_challenge.go that may be used in other places
