blob: f1a0b989af79a2eaceac8dcb35a2baf10180ec75 [file] [log] [blame] [edit]
// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
package json
import (
"bytes"
"encoding/json"
"fmt"
"io"
"github.com/spdx/tools-golang/convert"
"github.com/spdx/tools-golang/spdx"
"github.com/spdx/tools-golang/spdx/common"
"github.com/spdx/tools-golang/spdx/v2/v2_1"
"github.com/spdx/tools-golang/spdx/v2/v2_2"
"github.com/spdx/tools-golang/spdx/v2/v2_3"
)
// Read takes an io.Reader and returns a fully-parsed current model SPDX Document
// or an error if any error is encountered.
func Read(content io.Reader) (*spdx.Document, error) {
doc := spdx.Document{}
err := ReadInto(content, &doc)
return &doc, err
}
// ReadInto takes an io.Reader, reads in the SPDX document at the version provided
// and converts to the doc version
func ReadInto(content io.Reader, doc common.AnyDocument) error {
if !convert.IsPtr(doc) {
return fmt.Errorf("doc to read into must be a pointer")
}
buf := new(bytes.Buffer)
_, err := buf.ReadFrom(content)
if err != nil {
return err
}
var data interface{}
err = json.Unmarshal(buf.Bytes(), &data)
if err != nil {
return err
}
val, ok := data.(map[string]interface{})
if !ok {
return fmt.Errorf("not a valid SPDX JSON document")
}
version, ok := val["spdxVersion"]
if !ok {
return fmt.Errorf("JSON document does not contain spdxVersion field")
}
switch version {
case v2_1.Version:
var doc v2_1.Document
err = json.Unmarshal(buf.Bytes(), &doc)
if err != nil {
return err
}
data = doc
case v2_2.Version:
var doc v2_2.Document
err = json.Unmarshal(buf.Bytes(), &doc)
if err != nil {
return err
}
data = doc
case v2_3.Version:
var doc v2_3.Document
err = json.Unmarshal(buf.Bytes(), &doc)
if err != nil {
return err
}
data = doc
default:
return fmt.Errorf("unsupported SDPX version: %s", version)
}
return convert.Document(data, doc)
}