connect with TLS but got undefined value of placeholder "%C" and "%d" about emqx-auth-http HOT 9 CLOSED

## Path to the file containing the user's private PEM-encoded key.
##
## See: http://erlang.org/doc/man/ssl.html
##
## Value: File
listener.ssl.external.keyfile = etc/certs/key.pem

## Path to a file containing the user certificate.
##
## See: http://erlang.org/doc/man/ssl.html
##
## Value: File
listener.ssl.external.certfile = etc/certs/cert.pem

## Path to the file containing PEM-encoded CA certificates. The CA certificates
## are used during server authentication and when building the client certificate chain.
##
## Value: File
listener.ssl.external.cacertfile = etc/certs/cacert.pem

## The Ephemeral Diffie-Helman key exchange is a very effective way of
## ensuring Forward Secrecy by exchanging a set of keys that never hit
## the wire. Since the DH key is effectively signed by the private key,
## it needs to be at least as strong as the private key. In addition,
## the default DH groups that most of the OpenSSL installations have
## are only a handful (since they are distributed with the OpenSSL
## package that has been built for the operating system it’s running on)
## and hence predictable (not to mention, 1024 bits only).
## In order to escape this situation, first we need to generate a fresh,
## strong DH group, store it in a file and then use the option above,
## to force our SSL application to use the new DH group. Fortunately,
## OpenSSL provides us with a tool to do that. Simply run:
## openssl dhparam -out dh-params.pem 2048
##
## Value: File
## listener.ssl.external.dhfile = etc/certs/dh-params.pem

## A server only does x509-path validation in mode verify_peer,
## as it then sends a certificate request to the client (this
## message is not sent if the verify option is verify_none).
## You can then also want to specify option fail_if_no_peer_cert.
## More information at: http://erlang.org/doc/man/ssl.html
##
## Value: verify_peer | verify_none
listener.ssl.external.verify = verify_peer

## Used together with {verify, verify_peer} by an SSL server. If set to true,
## the server fails if the client does not have a certificate to send, that is,
## sends an empty certificate.
##
## Value: true | false
listener.ssl.external.fail_if_no_peer_cert = true

##--------------------------------------------------------------------
## HTTP Auth/ACL Plugin
##--------------------------------------------------------------------


##------------------------------------------------------------------------------
## SSL options

## Path to the file containing PEM-encoded CA certificates. The CA certificates
## are used during server authentication and when building the client certificate chain.
##
## Value: File
auth.http.ssl.cacertfile = etc/certs/ca.pem

## The path to a file containing the client's certificate.
##
## Value: File
auth.http.ssl.certfile = etc/certs/client-cert.pem

## Path to a file containing the client's private PEM-encoded key.
##
## Value: File
auth.http.ssl.keyfile = etc/certs/client-key.pem

##--------------------------------------------------------------------
## HTTP Request Headers
##
## Example: auth.http.header.Accept-Encoding = *
##
## Value: String
## auth.http.header.Accept = */*

##--------------------------------------------------------------------
## Authentication request.
##
## Variables:
##  - %u: username
##  - %c: clientid
##  - %a: ipaddress
##  - %r: protocol
##  - %P: password
##  - %p: sockport of server accepted
##  - %C: common name of client TLS cert
##  - %d: subject of client TLS cert
##
## Value: URL
auth.http.auth_req = http://127.0.0.1:8080/v1/mqtt/auth
## Value: post | get | put
auth.http.auth_req.method = post
## Value: Params
auth.http.auth_req.params = clientid=%c,username=%u,password=%P,commonname=%C,subject=%d,protocol=%r,ipaddress=%a

##--------------------------------------------------------------------
## Superuser request.
##
## Variables:
##  - %u: username
##  - %c: clientid
##  - %a: ipaddress
##  - %r: protocol
##  - %P: password
##  - %p: sockport of server accepted
##  - %C: common name of client TLS cert
##  - %d: subject of client TLS cert
##
## Value: URL
auth.http.super_req = http://127.0.0.1:8080/v1/mqtt/superuser
## Value: post | get | put
auth.http.super_req.method = post
## Value: Params
auth.http.super_req.params = clientid=%c,username=%u

##--------------------------------------------------------------------
## ACL request.
##
## Variables:
##  - %A: 1 | 2, 1 = sub, 2 = pub
##  - %u: username
##  - %c: clientid
##  - %a: ipaddress
##  - %r: protocol
##  - %m: mountpoint
##  - %t: topic
##
## Value: URL
auth.http.acl_req = http://127.0.0.1:8080/v1/mqtt/acl
## Value: post | get | put
auth.http.acl_req.method = post
## Value: Params
auth.http.acl_req.params = access=%A,username=%u,clientid=%c,ipaddr=%a,topic=%t,mountpoint=%m

##------------------------------------------------------------------------------
## Http Reqeust options

## Time-out time for the http request, 0 is never timeout.
##
## Value: Duration
## -h: hour, e.g. '2h' for 2 hours
## -m: minute, e.g. '5m' for 5 minutes
## -s: second, e.g. '30s' for 30 seconds
##
## Default: 0
## auth.http.request.timeout = 0

## Connection time-out time, used during the initial request
## when the client is connecting to the server
##
## Value: Duration
##
## Default is same with the timeout option
## auth.http.request.connect_timeout = 0

## Re-send http reuqest times
##
## Value: integer
##
## Default: 3
auth.http.request.retry_times = 3

## The interval for re-sending the http request
##
## Value: Duration
##
## Default: 1s
auth.http.request.retry_interval = 1s

## The 'Exponential Backoff' mechanism for re-sending request. The actually
## re-send time interval is `interval * backoff ^ times`
##
## Value: float
##
## Default: 2.0
auth.http.request.retry_backoff = 2.0

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