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Parse multiple certificates from single data source #356

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Parse multiple certificates from single data source #356

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e205cdf
loop through contents adding all pem blocks
ropnop Apr 21, 2023
e77f045
add test for chain from content
ropnop Apr 21, 2023
2035ccd
Merge branch 'main' into multiple_pems_datasource
ropnop May 10, 2023
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56 changes: 31 additions & 25 deletions internal/provider/data_source_certificate.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -120,37 +120,43 @@ func (ds *certificateDataSource) Read(ctx context.Context, req datasource.ReadRe

var certs []CertificateModel
if !newState.Content.IsNull() && !newState.Content.IsUnknown() {
block, _ := pem.Decode([]byte(newState.Content.ValueString()))
if block == nil {
pemBytes := []byte(newState.Content.ValueString())
var block *pem.Block
// Loop through the entire contents decoding PEM blocks
for {
block, pemBytes = pem.Decode(pemBytes)
if block == nil {
break
}
preamble, err := pemBlockToPEMPreamble(block)
if err != nil {
res.Diagnostics.AddError("Failed to identify PEM preamble", err.Error())
return
}

if preamble != PreambleCertificate {
res.Diagnostics.AddError(
"Unexpected PEM preamble",
fmt.Sprintf("Certificate PEM should be %q, got %q", PreambleCertificate, preamble),
)
return
}

cert, err := x509.ParseCertificate(block.Bytes)
if err != nil {
res.Diagnostics.AddError("Unable to parse certificate", err.Error())
return
}
certs = append(certs, certificateToStruct(cert))
}
if len(certs) == 0 {
res.Diagnostics.AddAttributeError(
path.Root("content"),
"Failed to decoded PEM",
"Value is not a valid PEM encoding of a certificate",
"Value is not a valid PEM encoding of certificate(s)",
)
return
}

preamble, err := pemBlockToPEMPreamble(block)
if err != nil {
res.Diagnostics.AddError("Failed to identify PEM preamble", err.Error())
return
}

if preamble != PreambleCertificate {
res.Diagnostics.AddError(
"Unexpected PEM preamble",
fmt.Sprintf("Certificate PEM should be %q, got %q", PreambleCertificate, preamble),
)
return
}

cert, err := x509.ParseCertificate(block.Bytes)
if err != nil {
res.Diagnostics.AddError("Unable to parse certificate", err.Error())
return
}

certs = []CertificateModel{certificateToStruct(cert)}
} else {
targetURL, err := url.Parse(newState.URL.ValueString())
if err != nil {
Expand Down
45 changes: 45 additions & 0 deletions internal/provider/data_source_certificate_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,51 @@ func TestDataSourceCertificate_CertificateContent(t *testing.T) {
})
}

func TestDataSourceCertificate_CertificateContentChain(t *testing.T) {
r.UnitTest(t, r.TestCase{
ProtoV5ProviderFactories: protoV5ProviderFactories(),

Steps: []r.TestStep{
{
Config: `
data "tls_certificate" "test" {
content = file("fixtures/public.pem")
}
`,
Check: r.ComposeAggregateTestCheckFunc(
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.#", "2"),

r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.signature_algorithm", "SHA256-RSA"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.public_key_algorithm", "RSA"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.serial_number", "266244246501122064554217434340898012243"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.is_ca", "false"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.version", "3"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.issuer", "CN=Root CA,O=Test Org,L=Here"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.subject", "CN=Child Cert,O=Child Co.,L=Everywhere"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.not_before", "2019-11-08T09:01:36Z"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.not_after", "2019-11-08T19:01:36Z"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.sha1_fingerprint", "61b65624427d75b61169100836904e44364df817"),
tu.TestCheckPEMFormat("data.tls_certificate.test", "certificates.0.cert_pem", PreambleCertificate.String()),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.0.cert_pem", strings.TrimSpace(fixtures.TestTlsDataSourceCertFromURL01)+"\n"),

r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.signature_algorithm", "SHA256-RSA"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.public_key_algorithm", "RSA"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.serial_number", "60512478256160404377639062250777657301"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.is_ca", "true"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.version", "3"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.issuer", "CN=Root CA,O=Test Org,L=Here"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.subject", "CN=Root CA,O=Test Org,L=Here"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.not_before", "2019-11-07T15:47:48Z"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.not_after", "2019-12-17T15:47:48Z"),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.sha1_fingerprint", "5829a9bcc57f317719c5c98d1f48d6c9957cb44e"),
tu.TestCheckPEMFormat("data.tls_certificate.test", "certificates.1.cert_pem", PreambleCertificate.String()),
r.TestCheckResourceAttr("data.tls_certificate.test", "certificates.1.cert_pem", strings.TrimSpace(fixtures.TestTlsDataSourceCertFromURL00)+"\n"),
),
},
},
})
}

func TestAccDataSourceCertificate_UpgradeFromVersion3_4_0(t *testing.T) {
r.Test(t, r.TestCase{
Steps: []r.TestStep{
Expand Down