forked from TrueCloudLab/lego
92 lines
2.1 KiB
Go
92 lines
2.1 KiB
Go
package oraclecloud
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import (
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"crypto/rsa"
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"encoding/base64"
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"fmt"
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"io/ioutil"
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"os"
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"github.com/go-acme/lego/v4/platform/config/env"
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"github.com/oracle/oci-go-sdk/common"
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)
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type configProvider struct {
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values map[string]string
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privateKeyPassphrase string
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}
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func newConfigProvider(values map[string]string) *configProvider {
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return &configProvider{
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values: values,
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privateKeyPassphrase: env.GetOrFile(EnvPrivKeyPass),
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}
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}
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func (p *configProvider) PrivateRSAKey() (*rsa.PrivateKey, error) {
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privateKey, err := getPrivateKey(envPrivKey)
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if err != nil {
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return nil, err
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}
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return common.PrivateKeyFromBytes(privateKey, common.String(p.privateKeyPassphrase))
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}
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func (p *configProvider) KeyID() (string, error) {
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tenancy, err := p.TenancyOCID()
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if err != nil {
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return "", err
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}
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user, err := p.UserOCID()
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if err != nil {
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return "", err
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}
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fingerprint, err := p.KeyFingerprint()
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if err != nil {
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return "", err
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}
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return fmt.Sprintf("%s/%s/%s", tenancy, user, fingerprint), nil
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}
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func (p *configProvider) TenancyOCID() (value string, err error) {
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return p.values[EnvTenancyOCID], nil
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}
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func (p *configProvider) UserOCID() (string, error) {
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return p.values[EnvUserOCID], nil
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}
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func (p *configProvider) KeyFingerprint() (string, error) {
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return p.values[EnvPubKeyFingerprint], nil
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}
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func (p *configProvider) Region() (string, error) {
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return p.values[EnvRegion], nil
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}
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func getPrivateKey(envVar string) ([]byte, error) {
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envVarValue := os.Getenv(envVar)
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if envVarValue != "" {
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bytes, err := base64.StdEncoding.DecodeString(envVarValue)
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if err != nil {
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return nil, fmt.Errorf("failed to read base64 value %s (defined by env var %s): %w", envVarValue, envVar, err)
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}
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return bytes, nil
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}
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fileVar := envVar + "_FILE"
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fileVarValue := os.Getenv(fileVar)
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if fileVarValue == "" {
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return nil, fmt.Errorf("no value provided for: %s or %s", envVar, fileVar)
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}
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fileContents, err := ioutil.ReadFile(fileVarValue)
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if err != nil {
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return nil, fmt.Errorf("failed to read the file %s (defined by env var %s): %w", fileVarValue, fileVar, err)
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}
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return fileContents, nil
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}
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