According to https://tools.ietf.org/html/rfc7232#section-2.1
> Likewise, a validator is weak if it is shared by two or more
representations of a given resource at the same time, unless those
representations have identical representation data. For example, if
the origin server sends the same validator for a representation with
a gzip content coding applied as it does for a representation with no
content coding, then that validator is weak.
Therefore, after gzip, we should change the original etag to weak etag.
* uses more of the builtin functionality for starting and stopping of the process by using command and command_args along with procname
* removed -f from daemon as this was hiding error message that were sent to stdout on startup, now writing stdout to the logfile directly
for example, this was being hidden:
“Activating privacy features.. [www.domain.com] failed to get certificate: Error presenting token: Could not find the start of authority”
it now shows up in the log
* aded “caddy_env” to allow the setting of environment variables that caddy might need, for example when setting creds for “DNS Challenge”
* added a check to ensure caddy_config_path file exists
go vet caused a build fail in https://travis-ci.org/mholt/caddy/jobs/248392875:
upstream_test.go:480::error: possible formatting directive in Error call (vet)
This patch changes the Error call added in commit 078c991574 to
an Errorf call to support the use of the %d token.
* vendor: update Lumberjack dep
* httpserver/roller: introduce rotate_compress directive
This directive will enable gzip compression provided by [Lumberjack](https://github.com/natefinch/lumberjack/pull/43).
The directive `rotate_compress` can be `true` or `false`, being `false` by default.
* httpserver/roller: remove need to set bool with rotate_compress option
See discussion on commit c9b022b5e0
If we overwrite the Server header, it becomes difficult/impossible to
know from the client whether the request was proxied through Caddy.
* introduced own ChallengeProvider type, based on acme.ChallengeProvider to avoid vendoring/version mismatches in Caddy plugins; see Caddy issue #1697
* fixed up comments for ChallengeProvider
* moved ChallengeProvider to caddytls/tls.go
