mirror of
https://gitee.com/milvus-io/milvus.git
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101 lines
3.5 KiB
Go
101 lines
3.5 KiB
Go
package proxy
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import (
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"context"
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"fmt"
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"strings"
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"go.uber.org/zap"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/metadata"
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"google.golang.org/grpc/status"
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"github.com/milvus-io/milvus/pkg/log"
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"github.com/milvus-io/milvus/pkg/metrics"
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"github.com/milvus-io/milvus/pkg/util"
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"github.com/milvus-io/milvus/pkg/util/crypto"
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"github.com/milvus-io/milvus/pkg/util/merr"
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)
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func parseMD(rawToken string) (username, password string) {
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secrets := strings.SplitN(rawToken, util.CredentialSeperator, 2)
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if len(secrets) < 2 {
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log.Warn("invalid token format, length of secrets less than 2")
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return
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}
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username = secrets[0]
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password = secrets[1]
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return
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}
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func validSourceID(ctx context.Context, authorization []string) bool {
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if len(authorization) < 1 {
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// log.Warn("key not found in header", zap.String("key", util.HeaderSourceID))
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return false
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}
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// token format: base64<sourceID>
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token := authorization[0]
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sourceID, err := crypto.Base64Decode(token)
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if err != nil {
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return false
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}
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return sourceID == util.MemberCredID
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}
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// AuthenticationInterceptor verify based on kv pair <"authorization": "token"> in header
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func AuthenticationInterceptor(ctx context.Context) (context.Context, error) {
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// The keys within metadata.MD are normalized to lowercase.
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// See: https://godoc.org/google.golang.org/grpc/metadata#New
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md, ok := metadata.FromIncomingContext(ctx)
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if !ok {
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return nil, merr.WrapErrIoKeyNotFound("metadata", "auth check failure, due to occurs inner error: missing metadata")
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}
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if globalMetaCache == nil {
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return nil, merr.WrapErrServiceUnavailable("internal: Milvus Proxy is not ready yet. please wait")
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}
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// check:
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// 1. if rpc call from a member (like index/query/data component)
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// 2. if rpc call from sdk
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if Params.CommonCfg.AuthorizationEnabled.GetAsBool() {
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if !validSourceID(ctx, md[strings.ToLower(util.HeaderSourceID)]) {
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authStrArr := md[strings.ToLower(util.HeaderAuthorize)]
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if len(authStrArr) < 1 {
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log.Warn("key not found in header")
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return nil, status.Error(codes.Unauthenticated, "missing authorization in header")
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}
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// token format: base64<username:password>
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// token := strings.TrimPrefix(authorization[0], "Bearer ")
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token := authStrArr[0]
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rawToken, err := crypto.Base64Decode(token)
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if err != nil {
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log.Warn("fail to decode the token", zap.Error(err))
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return nil, status.Error(codes.Unauthenticated, "invalid token format")
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}
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if !strings.Contains(rawToken, util.CredentialSeperator) {
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user, err := VerifyAPIKey(rawToken)
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if err != nil {
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log.Warn("fail to verify apikey", zap.Error(err))
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return nil, status.Error(codes.Unauthenticated, "auth check failure, please check api key is correct")
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}
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metrics.UserRPCCounter.WithLabelValues(user).Inc()
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userToken := fmt.Sprintf("%s%s%s", user, util.CredentialSeperator, "___")
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md[strings.ToLower(util.HeaderAuthorize)] = []string{crypto.Base64Encode(userToken)}
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ctx = metadata.NewIncomingContext(ctx, md)
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} else {
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// username+password authentication
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username, password := parseMD(rawToken)
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if !passwordVerify(ctx, username, password, globalMetaCache) {
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log.Warn("fail to verify password", zap.String("username", username))
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// NOTE: don't use the merr, because it will cause the wrong retry behavior in the sdk
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return nil, status.Error(codes.Unauthenticated, "auth check failure, please check username and password are correct")
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}
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metrics.UserRPCCounter.WithLabelValues(username).Inc()
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}
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}
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}
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return ctx, nil
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}
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