github.com/googleapis/api-linter@v1.65.2/rules/aip0140/base64.go (about)

     1  // Copyright 2019 Google LLC
     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  //     https://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 aip0140
    16  
    17  import (
    18  	"fmt"
    19  	"strings"
    20  
    21  	"github.com/googleapis/api-linter/lint"
    22  	"github.com/jhump/protoreflect/desc"
    23  )
    24  
    25  var base64 = &lint.FieldRule{
    26  	Name:   lint.NewRuleName(140, "base64"),
    27  	OnlyIf: isStringField,
    28  	LintField: func(f *desc.FieldDescriptor) []lint.Problem {
    29  		comment := strings.ToLower(f.GetSourceInfo().GetLeadingComments())
    30  		if strings.Contains(comment, "base64") || strings.Contains(comment, "base-64") {
    31  			return []lint.Problem{{
    32  				Message:    fmt.Sprintf("Field %q mentions base64 encoding in comments, so it should probably be type `bytes`, not `string`.", f.GetName()),
    33  				Descriptor: f,
    34  			}}
    35  		}
    36  		return nil
    37  	},
    38  }