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Add WARC-Cipher-Suite and WARC-Protocol #50

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Add WARC-Cipher-Suite and WARC-Protocol #50

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04293f6
feat: add WARC-Cipher-Suite and WARC-Protocol when necessary.
NGTmeaty Sep 26, 2024
0f0deb5
fix: merge conflicts
NGTmeaty Jan 29, 2026
9dbdf4b
fix: ensure HTTPS test uses TLS server
NGTmeaty Jan 29, 2026
91b4921
fix: add TLS server function to ensure consistency
NGTmeaty Jan 29, 2026
dfd346e
feat: add TLS specific checks
NGTmeaty Jan 29, 2026
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36 changes: 36 additions & 0 deletions dialer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -268,6 +268,34 @@ func (d *customDialer) writeWARCFromConnection(reqPipe, respPipe *io.PipeReader,
slices.Reverse(batch.Records)
}

var selectedCipherSuite string
var selectedProtocol string

if cc, ok := conn.(*tls.UConn); ok {
state := cc.ConnectionState()
for _, cipherSuite := range tls.CipherSuites() {
// List based on https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml
// example: WARC-Cipher-Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
if cipherSuite.ID == state.CipherSuite {
selectedCipherSuite = cipherSuite.Name
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}
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}
// Add the negotiated protocol version
// Values as defined in WARC proposal https://github.com/iipc/warc-specifications/issues/42
switch state.Version {
case tls.VersionSSL30:
selectedProtocol = "ssl/3"
case tls.VersionTLS10:
selectedProtocol = "tls/1.0"
case tls.VersionTLS11:
selectedProtocol = "tls/1.1"
case tls.VersionTLS12:
selectedProtocol = "tls/1.2"
case tls.VersionTLS13:
selectedProtocol = "tls/1.3"
}
Comment on lines +507 to +518
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@willmhowes willmhowes Feb 17, 2026

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In addition to writing a WARC-Protocol value for the encryption used, it could be nice to add support for which HTTP verison was archived to have feature parity with wget-lua:

- http/0.9
- http/1.0
- http/1.1

Not a request for right now, but noted all the same

}

// Get the WARC-Target-URI value
var warcTargetURI = <-warcTargetURIChannel

Expand All @@ -288,6 +316,14 @@ func (d *customDialer) writeWARCFromConnection(reqPipe, respPipe *io.PipeReader,
// Set WARC-Record-ID and WARC-Concurrent-To
r.Header.Set("WARC-Record-ID", "<urn:uuid:"+recordIDs[i]+">")

if selectedCipherSuite != "" {
r.Header.Set("WARC-Cipher-Suite", selectedCipherSuite)
}

if selectedProtocol != "" {
r.Header.Set("WARC-Protocol", selectedProtocol)
}

if i == len(recordIDs)-1 {
r.Header.Set("WARC-Concurrent-To", "<urn:uuid:"+recordIDs[0]+">")
} else {
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