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caddyhttp: New placeholder for PEM of client certificate (#3662)

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* Fix-3585: added placeholder for a PEM encoded value of the certificate

* Update modules/caddyhttp/replacer.go

Change type of block and empty headers removed

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>

* fixed tests

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
This commit is contained in:
Gaurav Dhameeja 2020-09-17 02:36:51 +05:30 committed by GitHub
parent 309c1fec62
commit b01bb275b3
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2 changed files with 8 additions and 0 deletions
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4
modules/caddyhttp/replacer.go
View file

@ -25,6 +25,7 @@ import (
"crypto/tls"
"crypto/x509"
"encoding/asn1"
"encoding/pem"
"fmt"
"io"
"io/ioutil"
@ -343,6 +344,9 @@ func getReqTLSReplacement(req *http.Request, key string) (interface{}, bool) {
return cert.SerialNumber, true
case "client.subject":
return cert.Subject, true
case "client.certificate_pem":
block := pem.Block{Type: "CERTIFICATE", Bytes: cert.Raw}
return pem.EncodeToMemory(&block), true
default:
return nil, false
}

4
modules/caddyhttp/replacer_test.go
View file

@ -171,6 +171,10 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
input: "{http.request.tls.client.san.ips.0}",
expect: "127.0.0.1",
},
{
input: "{http.request.tls.client.certificate_pem}",
expect: string(clientCert) + "\n", // returned value comes with a newline appended to it
},
} {
actual := repl.ReplaceAll(tc.input, "<empty>")
if actual != tc.expect {