util.go

Documentation: go.etcd.io/etcd/client/v2

     1  // Copyright 2016 The etcd Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package client
    16  
    17  import (
    18  	"regexp"
    19  )
    20  
    21  var (
    22  	roleNotFoundRegExp *regexp.Regexp
    23  	userNotFoundRegExp *regexp.Regexp
    24  )
    25  
    26  func init() {
    27  	roleNotFoundRegExp = regexp.MustCompile("auth: Role .* does not exist.")
    28  	userNotFoundRegExp = regexp.MustCompile("auth: User .* does not exist.")
    29  }
    30  
    31  // IsKeyNotFound returns true if the error code is ErrorCodeKeyNotFound.
    32  func IsKeyNotFound(err error) bool {
    33  	if cErr, ok := err.(Error); ok {
    34  		return cErr.Code == ErrorCodeKeyNotFound
    35  	}
    36  	return false
    37  }
    38  
    39  // IsRoleNotFound returns true if the error means role not found of v2 API.
    40  func IsRoleNotFound(err error) bool {
    41  	if ae, ok := err.(authError); ok {
    42  		return roleNotFoundRegExp.MatchString(ae.Message)
    43  	}
    44  	return false
    45  }
    46  
    47  // IsUserNotFound returns true if the error means user not found of v2 API.
    48  func IsUserNotFound(err error) bool {
    49  	if ae, ok := err.(authError); ok {
    50  		return userNotFoundRegExp.MatchString(ae.Message)
    51  	}
    52  	return false
    53  }
    54
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