108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package oss
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import (
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"bytes"
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"context"
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"github.com/aliyun/aliyun-oss-go-sdk/oss"
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"github.com/google/uuid"
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"github.com/dapr/components-contrib/bindings"
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"github.com/dapr/components-contrib/metadata"
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"github.com/dapr/kit/logger"
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)
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// AliCloudOSS is a binding for an AliCloud OSS storage bucket.
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type AliCloudOSS struct {
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metadata *ossMetadata
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client *oss.Client
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logger logger.Logger
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}
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type ossMetadata struct {
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Endpoint string `json:"endpoint" mapstructure:"endpoint"`
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AccessKeyID string `json:"accessKeyID" mapstructure:"accessKeyID"`
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AccessKey string `json:"accessKey" mapstructure:"accessKey"`
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Bucket string `json:"bucket" mapstructure:"bucket"`
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}
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// NewAliCloudOSS returns a new instance.
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func NewAliCloudOSS(logger logger.Logger) bindings.OutputBinding {
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return &AliCloudOSS{logger: logger}
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}
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// Init does metadata parsing and connection creation.
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func (s *AliCloudOSS) Init(_ context.Context, metadata bindings.Metadata) error {
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m, err := s.parseMetadata(metadata)
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if err != nil {
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return err
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}
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client, err := s.getClient(m)
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if err != nil {
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return err
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}
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s.metadata = m
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s.client = client
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return nil
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}
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func (s *AliCloudOSS) Operations() []bindings.OperationKind {
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return []bindings.OperationKind{bindings.CreateOperation}
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}
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func (s *AliCloudOSS) Invoke(_ context.Context, req *bindings.InvokeRequest) (*bindings.InvokeResponse, error) {
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key := ""
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if val, ok := req.Metadata["key"]; ok && val != "" {
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key = val
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} else {
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key = uuid.New().String()
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s.logger.Debugf("key not found. generating key %s", key)
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}
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bucket, err := s.client.Bucket(s.metadata.Bucket)
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if err != nil {
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return nil, err
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}
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// Upload a byte array.
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err = bucket.PutObject(key, bytes.NewReader(req.Data))
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if err != nil {
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return nil, err
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}
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return nil, err
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}
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func (s *AliCloudOSS) parseMetadata(meta bindings.Metadata) (*ossMetadata, error) {
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var m ossMetadata
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err := metadata.DecodeMetadata(meta.Properties, &m)
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if err != nil {
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return nil, err
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}
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return &m, nil
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}
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func (s *AliCloudOSS) getClient(metadata *ossMetadata) (*oss.Client, error) {
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client, err := oss.New(metadata.Endpoint, metadata.AccessKeyID, metadata.AccessKey)
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if err != nil {
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return nil, err
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}
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return client, nil
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}
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