mirror of https://github.com/go-gitea/gitea.git
118 lines
2.8 KiB
Go
118 lines
2.8 KiB
Go
// Copyright 2015 go-swagger maintainers
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package runtime
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"reflect"
|
|
|
|
"github.com/go-openapi/swag"
|
|
)
|
|
|
|
// TextConsumer creates a new text consumer
|
|
func TextConsumer() Consumer {
|
|
return ConsumerFunc(func(reader io.Reader, data interface{}) error {
|
|
if reader == nil {
|
|
return errors.New("TextConsumer requires a reader") // early exit
|
|
}
|
|
|
|
buf := new(bytes.Buffer)
|
|
_, err := buf.ReadFrom(reader)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
b := buf.Bytes()
|
|
|
|
// If the buffer is empty, no need to unmarshal it, which causes a panic.
|
|
if len(b) == 0 {
|
|
data = ""
|
|
return nil
|
|
}
|
|
|
|
if tu, ok := data.(encoding.TextUnmarshaler); ok {
|
|
err := tu.UnmarshalText(b)
|
|
if err != nil {
|
|
return fmt.Errorf("text consumer: %v", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
t := reflect.TypeOf(data)
|
|
if data != nil && t.Kind() == reflect.Ptr {
|
|
v := reflect.Indirect(reflect.ValueOf(data))
|
|
if t.Elem().Kind() == reflect.String {
|
|
v.SetString(string(b))
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf("%v (%T) is not supported by the TextConsumer, %s",
|
|
data, data, "can be resolved by supporting TextUnmarshaler interface")
|
|
})
|
|
}
|
|
|
|
// TextProducer creates a new text producer
|
|
func TextProducer() Producer {
|
|
return ProducerFunc(func(writer io.Writer, data interface{}) error {
|
|
if writer == nil {
|
|
return errors.New("TextProducer requires a writer") // early exit
|
|
}
|
|
|
|
if data == nil {
|
|
return errors.New("no data given to produce text from")
|
|
}
|
|
|
|
if tm, ok := data.(encoding.TextMarshaler); ok {
|
|
txt, err := tm.MarshalText()
|
|
if err != nil {
|
|
return fmt.Errorf("text producer: %v", err)
|
|
}
|
|
_, err = writer.Write(txt)
|
|
return err
|
|
}
|
|
|
|
if str, ok := data.(error); ok {
|
|
_, err := writer.Write([]byte(str.Error()))
|
|
return err
|
|
}
|
|
|
|
if str, ok := data.(fmt.Stringer); ok {
|
|
_, err := writer.Write([]byte(str.String()))
|
|
return err
|
|
}
|
|
|
|
v := reflect.Indirect(reflect.ValueOf(data))
|
|
if t := v.Type(); t.Kind() == reflect.Struct || t.Kind() == reflect.Slice {
|
|
b, err := swag.WriteJSON(data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
_, err = writer.Write(b)
|
|
return err
|
|
}
|
|
if v.Kind() != reflect.String {
|
|
return fmt.Errorf("%T is not a supported type by the TextProducer", data)
|
|
}
|
|
|
|
_, err := writer.Write([]byte(v.String()))
|
|
return err
|
|
})
|
|
}
|