drone/app/api/controller/upload/controller.go

108 lines
2.9 KiB
Go

// Copyright 2023 Harness, Inc.
//
// 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 upload
import (
"bufio"
"context"
"errors"
"fmt"
"io"
"strings"
apiauth "github.com/harness/gitness/app/api/auth"
"github.com/harness/gitness/app/api/usererror"
"github.com/harness/gitness/app/auth"
"github.com/harness/gitness/app/auth/authz"
"github.com/harness/gitness/app/store"
"github.com/harness/gitness/blob"
"github.com/harness/gitness/types"
"github.com/harness/gitness/types/enum"
"github.com/gabriel-vasile/mimetype"
)
const (
MaxFileSize = 10 << 20 // 10 MB file limit set in Handler
fileBucketPathFmt = "uploads/%d/%s"
peekBytes = 512
)
var supportedFileTypes = map[string]struct{}{
"image": {},
"video": {},
}
type Controller struct {
authorizer authz.Authorizer
repoStore store.RepoStore
blobStore blob.Store
}
func NewController(authorizer authz.Authorizer,
repoStore store.RepoStore,
blobStore blob.Store,
) *Controller {
return &Controller{
authorizer: authorizer,
repoStore: repoStore,
blobStore: blobStore,
}
}
func (c *Controller) getRepoCheckAccess(ctx context.Context,
session *auth.Session,
repoRef string,
reqPermission enum.Permission,
) (*types.Repository, error) {
if repoRef == "" {
return nil, usererror.BadRequest("A valid repository reference must be provided.")
}
repo, err := c.repoStore.FindByRef(ctx, repoRef)
if err != nil {
return nil, fmt.Errorf("failed to find repo: %w", err)
}
if err = apiauth.CheckRepo(ctx, c.authorizer, session, repo, reqPermission); err != nil {
return nil, fmt.Errorf("failed to verify authorization: %w", err)
}
return repo, nil
}
func (c *Controller) getFileExtension(file *bufio.Reader) (string, error) {
buf, err := file.Peek(peekBytes)
if err != nil && !errors.Is(err, io.EOF) {
return "", fmt.Errorf("failed to read file: %w", err)
}
// Example: mType.String() = image/png
// Splitting on "/" and taking the first element of the slice
// will give us the file type.
mType := mimetype.Detect(buf)
if _, ok := supportedFileTypes[strings.Split(mType.String(), "/")[0]]; !ok {
return "",
usererror.BadRequestf(
"only image and video files are supported, uploaded file is of type %s",
mType.String())
}
return mType.Extension(), nil
}
func getFileBucketPath(repoID int64, fileName string) string {
return fmt.Sprintf(fileBucketPathFmt, repoID, fileName)
}