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s3_client.go
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s3_client.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 s3
import (
"fmt"
"io"
"os"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
)
type Client struct {
s3Config *aws.Config
bucket string
}
func NewS3Client(id, secret, token, endpoint, region, bucket string, disableSSL bool) *Client {
s3Client := &Client{
s3Config: &aws.Config{
Credentials: credentials.NewStaticCredentials(id, secret, token),
Endpoint: aws.String(endpoint),
Region: aws.String(region),
DisableSSL: aws.Bool(disableSSL),
S3ForcePathStyle: aws.Bool(true),
},
bucket: bucket,
}
return s3Client
}
func (s *Client) PutObject(key, ext string, file io.ReadSeeker) (err error) {
newSession, err := session.NewSession(s.s3Config)
if err != nil {
return fmt.Errorf("failed to create session, %s", err.Error())
}
contentType := fmt.Sprintf("image/%s", strings.TrimPrefix(ext, "."))
_, err = s3.New(newSession).PutObject(&s3.PutObjectInput{
ACL: getACLConfig(),
Body: file,
Bucket: aws.String(s.bucket),
Key: aws.String(key),
ContentType: aws.String(contentType),
})
if err != nil {
return fmt.Errorf("failed to put object, %s", err.Error())
}
return nil
}
var (
// aclPublicRead is the environment variable for some special platforms such as digital ocean
// https://github.com/apache/incubator-answer-plugins/issues/97
aclPublicRead = os.Getenv("ACL_PUBLIC_READ")
)
func getACLConfig() *string {
if len(aclPublicRead) > 0 {
return aws.String("public-read")
}
return nil
}