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|
package validator
import (
"crypto"
"crypto/ecdsa"
"crypto/ed25519"
"crypto/elliptic"
"crypto/rsa"
"fmt"
"strings"
"github.com/go-jose/go-jose/v4"
"github.com/weppos/publicsuffix-go/publicsuffix"
"github.com/authelia/authelia/v4/internal/configuration/schema"
"github.com/authelia/authelia/v4/internal/expression"
"github.com/authelia/authelia/v4/internal/oidc"
"github.com/authelia/authelia/v4/internal/utils"
)
func isUserAttributeDefinitionNameValid(attribute string, config *schema.Configuration) bool {
if expression.IsReservedAttribute(attribute) {
return false
}
if config.AuthenticationBackend.LDAP != nil {
for attrname, attr := range config.AuthenticationBackend.LDAP.Attributes.Extra {
if attr.Name != "" {
if attr.Name == attribute {
return false
}
} else if attrname == attribute {
return false
}
}
}
if config.AuthenticationBackend.File != nil {
for attrname := range config.AuthenticationBackend.File.ExtraAttributes {
if attrname == attribute {
return false
}
}
}
return true
}
func boolApply(current, new bool) bool {
if current || new {
return true
}
return false
}
func isCookieDomainAPublicSuffix(domain string) (valid bool) {
domain = strings.TrimLeft(domain, ".")
_, err := publicsuffix.Domain(domain)
if err != nil {
return err.Error() == fmt.Sprintf(errFmtCookieDomainInPSL, domain)
}
return false
}
func validateListNotAllowed(values, filter []string) (invalid []string) {
for _, value := range values {
if utils.IsStringInSlice(value, filter) {
invalid = append(invalid, value)
}
}
return invalid
}
func validateList(values, valid []string, chkDuplicate bool) (invalid, duplicates []string) {
chkValid := len(valid) != 0
for i, value := range values {
if chkValid {
if !utils.IsStringInSlice(value, valid) {
invalid = append(invalid, value)
// Skip checking duplicates for invalid values.
continue
}
}
if chkDuplicate {
for j, valueAlt := range values {
if i == j {
continue
}
if value != valueAlt {
continue
}
if utils.IsStringInSlice(value, duplicates) {
continue
}
duplicates = append(duplicates, value)
}
}
}
return
}
type JWKProperties struct {
Use string
Algorithm string
Bits int
Curve elliptic.Curve
}
//nolint:gocyclo
func schemaJWKGetProperties(jwk schema.JWK) (properties *JWKProperties, err error) {
if jwk.Use == oidc.KeyUseEncryption {
return schemaJWKGetPropertiesEnc(jwk)
}
switch key := jwk.Key.(type) {
case nil:
return nil, nil
case []byte:
return nil, fmt.Errorf("symmetric keys are not permitted for signing")
case ed25519.PrivateKey, ed25519.PublicKey:
return &JWKProperties{}, nil
case *rsa.PrivateKey:
if key.PublicKey.N == nil {
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgRSAUsingSHA256, 0, nil}, nil
}
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgRSAUsingSHA256, key.Size(), nil}, nil
case *rsa.PublicKey:
if key.N == nil {
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgRSAUsingSHA256, 0, nil}, nil
}
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgRSAUsingSHA256, key.Size(), nil}, nil
case *ecdsa.PublicKey:
switch key.Curve {
case elliptic.P256():
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgECDSAUsingP256AndSHA256, -1, key.Curve}, nil
case elliptic.P384():
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgECDSAUsingP384AndSHA384, -1, key.Curve}, nil
case elliptic.P521():
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgECDSAUsingP521AndSHA512, -1, key.Curve}, nil
default:
return &JWKProperties{oidc.KeyUseSignature, "", -1, key.Curve}, nil
}
case *ecdsa.PrivateKey:
switch key.Curve {
case elliptic.P256():
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgECDSAUsingP256AndSHA256, -1, key.Curve}, nil
case elliptic.P384():
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgECDSAUsingP384AndSHA384, -1, key.Curve}, nil
case elliptic.P521():
return &JWKProperties{oidc.KeyUseSignature, oidc.SigningAlgECDSAUsingP521AndSHA512, -1, key.Curve}, nil
default:
return &JWKProperties{oidc.KeyUseSignature, "", -1, key.Curve}, nil
}
default:
return nil, fmt.Errorf("the key type '%T' is unknown or not valid for the configuration", key)
}
}
func schemaJWKGetPropertiesEnc(jwk schema.JWK) (properties *JWKProperties, err error) {
switch key := jwk.Key.(type) {
case nil:
return nil, nil
case []byte:
switch n := len(key); n {
case 256:
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgA256GCMKW, n, nil}, nil
case 192:
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgA192GCMKW, n, nil}, nil
case 128:
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgA128GCMKW, n, nil}, nil
default:
if n > 32 {
return nil, fmt.Errorf("invalid symmetric key length of %d but the minimum is 32", n)
}
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgDirect, n, nil}, nil
}
case ed25519.PrivateKey, ed25519.PublicKey:
return &JWKProperties{}, nil
case *rsa.PrivateKey:
if key.PublicKey.N == nil {
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgRSAOAEP256, 0, nil}, nil
}
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgRSAOAEP256, key.Size(), nil}, nil
case *rsa.PublicKey:
if key.N == nil {
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgRSAOAEP256, 0, nil}, nil
}
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgRSAOAEP256, key.Size(), nil}, nil
case *ecdsa.PublicKey:
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgECDHESA256KW, -1, key.Curve}, nil
case *ecdsa.PrivateKey:
return &JWKProperties{oidc.KeyUseEncryption, oidc.EncryptionAlgECDHESA256KW, -1, key.Curve}, nil
default:
return nil, fmt.Errorf("the key type '%T' is unknown or not valid for the configuration", key)
}
}
func jwkCalculateKID(key schema.CryptographicKey, props *JWKProperties, alg string) (kid string, err error) {
j := jose.JSONWebKey{}
switch k := key.(type) {
case schema.CryptographicPrivateKey:
j.Key = k.Public()
case *rsa.PublicKey, *ecdsa.PublicKey, ed25519.PublicKey:
j.Key = k
default:
return "", nil
}
if alg == "" {
alg = props.Algorithm
}
var thumbprint []byte
if thumbprint, err = j.Thumbprint(crypto.SHA256); err != nil {
return "", err
}
if alg == "" {
return fmt.Sprintf("%x", thumbprint)[:6], nil
}
return fmt.Sprintf("%s-%s", fmt.Sprintf("%x", thumbprint)[:6], strings.ToLower(alg)), nil
}
func getResponseObjectAlgFromKID(config *schema.IdentityProvidersOpenIDConnect, kid, alg string) string {
for _, jwk := range config.JSONWebKeys {
if kid == jwk.KeyID {
return jwk.Algorithm
}
}
return alg
}
|
