4a057bf3d5
2 configurations for the listeners are now possible: - enableJWT=false with client ssl auth - enableJWT=true with https Actual verification of the tokens is handled by https://github.com/openshift-online/ocm-sdk-go. An authentication handler is run as the top level handler, before any routing is done. Routes which do not require authentication should be listed as exceptions. Authentication can be restricted using an ACL file which allows filtering based on JWT claims. For more information see the inline comments in ocm-sdk/authentication. As an added quirk the `-v` flag for the osbuild-composer executable was changed to `-verbose` to avoid flag collision with glog which declares the `-v` flag in the package `init()` function. The ocm-sdk depends on glog and pulls it in.
101 lines
2.4 KiB
Go
101 lines
2.4 KiB
Go
package jwt
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import (
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"crypto"
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"crypto/rand"
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"crypto/rsa"
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)
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// Implements the RSA family of signing methods signing methods
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// Expects *rsa.PrivateKey for signing and *rsa.PublicKey for validation
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type SigningMethodRSA struct {
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Name string
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Hash crypto.Hash
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}
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// Specific instances for RS256 and company
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var (
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SigningMethodRS256 *SigningMethodRSA
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SigningMethodRS384 *SigningMethodRSA
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SigningMethodRS512 *SigningMethodRSA
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)
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func init() {
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// RS256
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SigningMethodRS256 = &SigningMethodRSA{"RS256", crypto.SHA256}
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RegisterSigningMethod(SigningMethodRS256.Alg(), func() SigningMethod {
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return SigningMethodRS256
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})
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// RS384
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SigningMethodRS384 = &SigningMethodRSA{"RS384", crypto.SHA384}
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RegisterSigningMethod(SigningMethodRS384.Alg(), func() SigningMethod {
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return SigningMethodRS384
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})
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// RS512
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SigningMethodRS512 = &SigningMethodRSA{"RS512", crypto.SHA512}
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RegisterSigningMethod(SigningMethodRS512.Alg(), func() SigningMethod {
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return SigningMethodRS512
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})
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}
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func (m *SigningMethodRSA) Alg() string {
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return m.Name
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}
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// Implements the Verify method from SigningMethod
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// For this signing method, must be an *rsa.PublicKey structure.
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func (m *SigningMethodRSA) Verify(signingString, signature string, key interface{}) error {
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var err error
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// Decode the signature
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var sig []byte
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if sig, err = DecodeSegment(signature); err != nil {
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return err
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}
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var rsaKey *rsa.PublicKey
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var ok bool
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if rsaKey, ok = key.(*rsa.PublicKey); !ok {
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return ErrInvalidKeyType
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}
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// Create hasher
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if !m.Hash.Available() {
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return ErrHashUnavailable
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}
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hasher := m.Hash.New()
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hasher.Write([]byte(signingString))
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// Verify the signature
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return rsa.VerifyPKCS1v15(rsaKey, m.Hash, hasher.Sum(nil), sig)
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}
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// Implements the Sign method from SigningMethod
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// For this signing method, must be an *rsa.PrivateKey structure.
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func (m *SigningMethodRSA) Sign(signingString string, key interface{}) (string, error) {
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var rsaKey *rsa.PrivateKey
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var ok bool
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// Validate type of key
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if rsaKey, ok = key.(*rsa.PrivateKey); !ok {
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return "", ErrInvalidKey
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}
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// Create the hasher
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if !m.Hash.Available() {
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return "", ErrHashUnavailable
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}
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hasher := m.Hash.New()
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hasher.Write([]byte(signingString))
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// Sign the string and return the encoded bytes
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if sigBytes, err := rsa.SignPKCS1v15(rand.Reader, rsaKey, m.Hash, hasher.Sum(nil)); err == nil {
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return EncodeSegment(sigBytes), nil
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} else {
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return "", err
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}
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}
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