mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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2371bb0a09
* add otlp trace http exporter * remove `WithTraces*` options * address discussions * run make precommit * rename WithURLPath option
93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package otlptracehttp_test
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import (
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"bytes"
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"crypto/ecdsa"
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"crypto/elliptic"
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cryptorand "crypto/rand"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"math/big"
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mathrand "math/rand"
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"net"
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"time"
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)
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type mathRandReader struct{}
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func (mathRandReader) Read(p []byte) (n int, err error) {
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return mathrand.Read(p)
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}
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var randReader mathRandReader
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type pemCertificate struct {
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Certificate []byte
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PrivateKey []byte
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}
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// Based on https://golang.org/src/crypto/tls/generate_cert.go,
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// simplified and weakened.
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func generateWeakCertificate() (*pemCertificate, error) {
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priv, err := ecdsa.GenerateKey(elliptic.P256(), randReader)
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if err != nil {
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return nil, err
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}
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keyUsage := x509.KeyUsageDigitalSignature
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notBefore := time.Now()
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notAfter := notBefore.Add(time.Hour)
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serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
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serialNumber, err := cryptorand.Int(randReader, serialNumberLimit)
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if err != nil {
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return nil, err
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}
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template := x509.Certificate{
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SerialNumber: serialNumber,
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Subject: pkix.Name{
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Organization: []string{"otel-go"},
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},
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NotBefore: notBefore,
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NotAfter: notAfter,
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KeyUsage: keyUsage,
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ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
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BasicConstraintsValid: true,
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DNSNames: []string{"localhost"},
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IPAddresses: []net.IP{net.IPv6loopback, net.IPv4(127, 0, 0, 1)},
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}
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derBytes, err := x509.CreateCertificate(randReader, &template, &template, &priv.PublicKey, priv)
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if err != nil {
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return nil, err
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}
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certificateBuffer := new(bytes.Buffer)
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if err := pem.Encode(certificateBuffer, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil {
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return nil, err
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}
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privDERBytes, err := x509.MarshalPKCS8PrivateKey(priv)
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if err != nil {
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return nil, err
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}
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privBuffer := new(bytes.Buffer)
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if err := pem.Encode(privBuffer, &pem.Block{Type: "PRIVATE KEY", Bytes: privDERBytes}); err != nil {
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return nil, err
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}
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return &pemCertificate{
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Certificate: certificateBuffer.Bytes(),
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PrivateKey: privBuffer.Bytes(),
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}, nil
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}
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