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101 lines
3.2 KiB
Go
101 lines
3.2 KiB
Go
package aliyun
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import (
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"github.com/aliyun/credentials-go/credentials" // >= v1.2.6
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"github.com/cockroachdb/errors"
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"github.com/minio/minio-go/v7"
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minioCred "github.com/minio/minio-go/v7/pkg/credentials"
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"github.com/milvus-io/milvus/pkg/log"
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)
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const (
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OSSAddressFeatureString = "aliyuncs.com"
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OSSDefaultAddress = "oss.aliyuncs.com"
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)
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// NewMinioClient returns a minio.Client which is compatible for aliyun OSS
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func NewMinioClient(address string, opts *minio.Options) (*minio.Client, error) {
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if opts == nil {
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opts = &minio.Options{}
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}
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if opts.Creds == nil {
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credProvider, err := NewCredentialProvider()
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if err != nil {
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return nil, errors.Wrap(err, "failed to create credential provider")
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}
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opts.Creds = minioCred.New(credProvider)
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}
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if address == "" {
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address = OSSDefaultAddress
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opts.Secure = true
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}
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return minio.New(address, opts)
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}
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// Credential is defined to mock aliyun credential.Credentials
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//
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//go:generate mockery --name=Credential --with-expecter
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type Credential interface {
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credentials.Credential
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}
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// CredentialProvider implements "github.com/minio/minio-go/v7/pkg/credentials".Provider
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// also implements transport
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type CredentialProvider struct {
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// aliyunCreds doesn't provide a way to get the expire time, so we use the cache to check if it's expired
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// when aliyunCreds.GetAccessKeyId is different from the cache, we know it's expired
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akCache string
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aliyunCreds Credential
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}
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func NewCredentialProvider() (minioCred.Provider, error) {
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aliyunCreds, err := credentials.NewCredential(nil)
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if err != nil {
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return nil, errors.Wrap(err, "failed to create aliyun credential")
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}
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// backend, err := minio.DefaultTransport(true)
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// if err != nil {
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// return nil, errors.Wrap(err, "failed to create default transport")
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// }
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return &CredentialProvider{aliyunCreds: aliyunCreds}, nil
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}
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// Retrieve returns nil if it successfully retrieved the value.
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// Error is returned if the value were not obtainable, or empty.
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// according to the caller minioCred.Credentials.Get(),
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// it already has a lock, so we don't need to worry about concurrency
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func (c *CredentialProvider) Retrieve() (minioCred.Value, error) {
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ret := minioCred.Value{}
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ak, err := c.aliyunCreds.GetAccessKeyId()
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if err != nil {
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return ret, errors.Wrap(err, "failed to get access key id from aliyun credential")
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}
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ret.AccessKeyID = *ak
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sk, err := c.aliyunCreds.GetAccessKeySecret()
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if err != nil {
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return minioCred.Value{}, errors.Wrap(err, "failed to get access key secret from aliyun credential")
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}
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securityToken, err := c.aliyunCreds.GetSecurityToken()
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if err != nil {
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return minioCred.Value{}, errors.Wrap(err, "failed to get security token from aliyun credential")
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}
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ret.SecretAccessKey = *sk
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c.akCache = *ak
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ret.SessionToken = *securityToken
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return ret, nil
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}
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// IsExpired returns if the credentials are no longer valid, and need
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// to be retrieved.
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// according to the caller minioCred.Credentials.IsExpired(),
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// it already has a lock, so we don't need to worry about concurrency
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func (c CredentialProvider) IsExpired() bool {
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ak, err := c.aliyunCreds.GetAccessKeyId()
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if err != nil {
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log.Warn("failed to get access key id from aliyun credential, assume it's expired")
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return true
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}
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return *ak != c.akCache
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}
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