43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
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package internals
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import (
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"crypto/rand"
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"crypto/rsa"
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"crypto/tls"
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"crypto/x509"
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"crypto/x509/pkix"
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"io"
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"math/big"
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"net"
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"strings"
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"time"
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)
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// tlsHandshakeFilter drops "TLS handshake error" log lines (expected noise from
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// browsers rejecting self-signed certs) and forwards everything else unchanged.
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type tlsHandshakeFilter struct{ w io.Writer }
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func (f tlsHandshakeFilter) Write(p []byte) (int, error) {
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if strings.Contains(string(p), "TLS handshake error") {
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return len(p), nil
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}
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return f.w.Write(p)
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}
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func generateSelfSignedCert() (tls.Certificate, error) {
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priv, _ := rsa.GenerateKey(rand.Reader, 2048)
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serial, _ := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128))
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tmpl := x509.Certificate{
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SerialNumber: serial,
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Subject: pkix.Name{Organization: []string{"GoTermix"}, CommonName: "localhost"},
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NotBefore: time.Now(),
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NotAfter: time.Now().Add(365 * 24 * time.Hour),
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KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
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ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
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DNSNames: []string{"localhost"},
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IPAddresses: []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("::1")},
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}
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der, _ := x509.CreateCertificate(rand.Reader, &tmpl, &tmpl, &priv.PublicKey, priv)
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return tls.Certificate{Certificate: [][]byte{der}, PrivateKey: priv}, nil
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}
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