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https://codeberg.org/forgejo/forgejo.git
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232 lines
5.9 KiB
Go
232 lines
5.9 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package storage
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import (
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"context"
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"io"
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"net/url"
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"os"
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"path"
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"strings"
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"time"
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"code.gitea.io/gitea/modules/log"
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"github.com/minio/minio-go/v7"
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"github.com/minio/minio-go/v7/pkg/credentials"
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)
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var (
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_ ObjectStorage = &MinioStorage{}
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quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
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)
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type minioObject struct {
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*minio.Object
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}
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func (m *minioObject) Stat() (os.FileInfo, error) {
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oi, err := m.Object.Stat()
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if err != nil {
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return nil, convertMinioErr(err)
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}
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return &minioFileInfo{oi}, nil
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}
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// MinioStorageType is the type descriptor for minio storage
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const MinioStorageType Type = "minio"
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// MinioStorageConfig represents the configuration for a minio storage
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type MinioStorageConfig struct {
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Endpoint string `ini:"MINIO_ENDPOINT"`
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AccessKeyID string `ini:"MINIO_ACCESS_KEY_ID"`
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SecretAccessKey string `ini:"MINIO_SECRET_ACCESS_KEY"`
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Bucket string `ini:"MINIO_BUCKET"`
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Location string `ini:"MINIO_LOCATION"`
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BasePath string `ini:"MINIO_BASE_PATH"`
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UseSSL bool `ini:"MINIO_USE_SSL"`
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}
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// MinioStorage returns a minio bucket storage
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type MinioStorage struct {
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ctx context.Context
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client *minio.Client
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bucket string
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basePath string
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}
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func convertMinioErr(err error) error {
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if err == nil {
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return nil
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}
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errResp, ok := err.(minio.ErrorResponse)
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if !ok {
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return err
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}
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// Convert two responses to standard analogues
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switch errResp.Code {
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case "NoSuchKey":
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return os.ErrNotExist
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case "AccessDenied":
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return os.ErrPermission
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}
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return err
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}
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// NewMinioStorage returns a minio storage
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func NewMinioStorage(ctx context.Context, cfg interface{}) (ObjectStorage, error) {
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configInterface, err := toConfig(MinioStorageConfig{}, cfg)
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if err != nil {
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return nil, convertMinioErr(err)
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}
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config := configInterface.(MinioStorageConfig)
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log.Info("Creating Minio storage at %s:%s with base path %s", config.Endpoint, config.Bucket, config.BasePath)
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minioClient, err := minio.New(config.Endpoint, &minio.Options{
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Creds: credentials.NewStaticV4(config.AccessKeyID, config.SecretAccessKey, ""),
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Secure: config.UseSSL,
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})
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if err != nil {
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return nil, convertMinioErr(err)
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}
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if err := minioClient.MakeBucket(ctx, config.Bucket, minio.MakeBucketOptions{
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Region: config.Location,
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}); err != nil {
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// Check to see if we already own this bucket (which happens if you run this twice)
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exists, errBucketExists := minioClient.BucketExists(ctx, config.Bucket)
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if !exists || errBucketExists != nil {
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return nil, convertMinioErr(err)
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}
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}
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return &MinioStorage{
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ctx: ctx,
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client: minioClient,
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bucket: config.Bucket,
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basePath: config.BasePath,
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}, nil
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}
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func (m *MinioStorage) buildMinioPath(p string) string {
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return strings.TrimPrefix(path.Join(m.basePath, p), "/")
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}
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// Open open a file
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func (m *MinioStorage) Open(path string) (Object, error) {
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opts := minio.GetObjectOptions{}
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object, err := m.client.GetObject(m.ctx, m.bucket, m.buildMinioPath(path), opts)
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if err != nil {
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return nil, convertMinioErr(err)
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}
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return &minioObject{object}, nil
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}
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// Save save a file to minio
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func (m *MinioStorage) Save(path string, r io.Reader, size int64) (int64, error) {
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uploadInfo, err := m.client.PutObject(
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m.ctx,
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m.bucket,
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m.buildMinioPath(path),
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r,
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size,
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minio.PutObjectOptions{ContentType: "application/octet-stream"},
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)
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if err != nil {
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return 0, convertMinioErr(err)
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}
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return uploadInfo.Size, nil
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}
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type minioFileInfo struct {
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minio.ObjectInfo
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}
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func (m minioFileInfo) Name() string {
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return path.Base(m.ObjectInfo.Key)
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}
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func (m minioFileInfo) Size() int64 {
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return m.ObjectInfo.Size
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}
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func (m minioFileInfo) ModTime() time.Time {
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return m.LastModified
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}
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func (m minioFileInfo) IsDir() bool {
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return strings.HasSuffix(m.ObjectInfo.Key, "/")
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}
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func (m minioFileInfo) Mode() os.FileMode {
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return os.ModePerm
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}
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func (m minioFileInfo) Sys() interface{} {
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return nil
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}
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// Stat returns the stat information of the object
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func (m *MinioStorage) Stat(path string) (os.FileInfo, error) {
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info, err := m.client.StatObject(
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m.ctx,
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m.bucket,
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m.buildMinioPath(path),
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minio.StatObjectOptions{},
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)
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if err != nil {
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return nil, convertMinioErr(err)
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}
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return &minioFileInfo{info}, nil
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}
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// Delete delete a file
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func (m *MinioStorage) Delete(path string) error {
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err := m.client.RemoveObject(m.ctx, m.bucket, m.buildMinioPath(path), minio.RemoveObjectOptions{})
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return convertMinioErr(err)
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}
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// URL gets the redirect URL to a file. The presigned link is valid for 5 minutes.
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func (m *MinioStorage) URL(path, name string) (*url.URL, error) {
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reqParams := make(url.Values)
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// TODO it may be good to embed images with 'inline' like ServeData does, but we don't want to have to read the file, do we?
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reqParams.Set("response-content-disposition", "attachment; filename=\""+quoteEscaper.Replace(name)+"\"")
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u, err := m.client.PresignedGetObject(m.ctx, m.bucket, m.buildMinioPath(path), 5*time.Minute, reqParams)
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return u, convertMinioErr(err)
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}
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// IterateObjects iterates across the objects in the miniostorage
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func (m *MinioStorage) IterateObjects(fn func(path string, obj Object) error) error {
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opts := minio.GetObjectOptions{}
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lobjectCtx, cancel := context.WithCancel(m.ctx)
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defer cancel()
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for mObjInfo := range m.client.ListObjects(lobjectCtx, m.bucket, minio.ListObjectsOptions{
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Prefix: m.basePath,
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Recursive: true,
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}) {
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object, err := m.client.GetObject(lobjectCtx, m.bucket, mObjInfo.Key, opts)
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if err != nil {
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return convertMinioErr(err)
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}
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if err := func(object *minio.Object, fn func(path string, obj Object) error) error {
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defer object.Close()
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return fn(strings.TrimPrefix(mObjInfo.Key, m.basePath), &minioObject{object})
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}(object, fn); err != nil {
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return convertMinioErr(err)
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}
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}
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return nil
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}
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func init() {
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RegisterStorageType(MinioStorageType, NewMinioStorage)
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}
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