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dropbox.go
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dropbox.go
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// Copyright 2017, Horst Gutmann
//
// 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 sinks
import (
"context"
"io"
"path/filepath"
"strings"
"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox"
dfiles "github.com/dropbox/dropbox-sdk-go-unofficial/dropbox/files"
)
type DropboxSink struct {
dropboxCfg dropbox.Config
}
func NewDropboxSink(ctx context.Context, cfg Configuration) (*DropboxSink, error) {
dbxCfg := dropbox.Config{
Token: cfg.DropboxOAuthAccessToken,
}
return &DropboxSink{
dropboxCfg: dbxCfg,
}, nil
}
func (s *DropboxSink) ListObjects(ctx context.Context, path string) ([]BucketObject, error) {
normalizedPath := "/" + path
dbf := dfiles.New(s.dropboxCfg)
result := make([]BucketObject, 0, 10)
arg := dfiles.NewListFolderArg(normalizedPath)
arg.Recursive = true
resp, err := dbf.ListFolder(arg)
for {
if err != nil {
if strings.Contains(err.Error(), "path/not_found/") {
break
}
return nil, err
}
for _, e := range resp.Entries {
switch entry := e.(type) {
case *dfiles.FileMetadata:
o := BucketObject{
Prefix: normalizedPath,
Name: entry.Name,
}
result = append(result, o)
}
}
if resp.HasMore {
carg := dfiles.NewListFolderContinueArg(resp.Cursor)
resp, err = dbf.ListFolderContinue(carg)
} else {
break
}
}
return result, nil
}
func (s *DropboxSink) CreateObject(ctx context.Context, path string, data io.Reader) error {
dbf := dfiles.New(s.dropboxCfg)
normalizedPath := "/" + path
folder := filepath.Dir(normalizedPath)
farg := dfiles.NewCreateFolderArg(folder)
if _, err := dbf.CreateFolderV2(farg); err != nil {
if !strings.Contains(err.Error(), "conflict") {
return err
}
}
arg := dfiles.NewCommitInfo(normalizedPath)
_, err := dbf.Upload(arg, data)
return err
}