/
s3.go
77 lines (63 loc) · 1.44 KB
/
s3.go
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package internal
import (
"bytes"
"io/ioutil"
"log"
"net/url"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
)
func findS3Files(urlStr string) []string {
var files []string
if strings.HasSuffix(urlStr, "/") {
u, err1 := url.Parse(urlStr)
if err1 != nil {
log.Fatal(err1)
}
bucket := u.Host
key := u.Path[1:]
sess := session.Must(session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
}))
svc := s3.New(sess)
params := &s3.ListObjectsInput{
Bucket: aws.String(bucket),
Prefix: aws.String(key),
}
resp, _ := svc.ListObjects(params)
for _, key := range resp.Contents {
files = append(files, "s3://"+bucket+"/"+*key.Key)
}
} else {
files = append(files, urlStr)
}
return files
}
func downloadS3File(filename string) ReadSeekCloser {
sess := session.Must(session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
}))
u, err := url.Parse(filename)
if err != nil {
log.Fatal(err)
}
bucket := u.Host
key := u.Path
// TODO stream
// TODO get file type before full download
svc := s3.New(sess)
resp, err := svc.GetObject(&s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(key),
})
if err != nil {
log.Fatal(err)
}
buff, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}
return bytes.NewReader(buff)
}