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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,202 @@ | ||
| package r2 | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "fmt" | ||
| "github.com/aws/aws-sdk-go-v2/aws" | ||
| awsConfig "github.com/aws/aws-sdk-go-v2/config" | ||
| "github.com/aws/aws-sdk-go-v2/credentials" | ||
| "github.com/aws/aws-sdk-go-v2/service/s3" | ||
| "github.com/casdoor/oss" | ||
| "io" | ||
| "io/ioutil" | ||
| "mime" | ||
| "net/http" | ||
| "net/url" | ||
| "os" | ||
| "path" | ||
| "path/filepath" | ||
| "regexp" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| type Client struct { | ||
| R2 *s3.Client | ||
| Config *Config | ||
| } | ||
|
|
||
| type Config struct { | ||
| AccountId string | ||
| AccessKeyId string | ||
| AccessKeySecret string | ||
| Bucket string | ||
| Endpoint string | ||
| } | ||
|
|
||
| // New init cloudflare r2 store | ||
| func New(config *Config) *Client { | ||
|
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||
| endpoint := fmt.Sprintf("https://%s.r2.cloudflarestorage.com", config.AccountId) | ||
| config.Endpoint = endpoint | ||
|
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| client := &Client{Config: config} | ||
|
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| r2Resolver := aws.EndpointResolverWithOptionsFunc(func(service, region string, options ...interface{}) (aws.Endpoint, error) { | ||
| return aws.Endpoint{ | ||
| URL: endpoint, | ||
| }, nil | ||
| }) | ||
|
|
||
| cfg, _ := awsConfig.LoadDefaultConfig(context.TODO(), | ||
| awsConfig.WithEndpointResolverWithOptions(r2Resolver), | ||
| awsConfig.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(config.AccessKeyId, config.AccessKeySecret, "")), | ||
| ) | ||
|
|
||
| client.R2 = s3.NewFromConfig(cfg) | ||
|
|
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| return client | ||
| } | ||
|
|
||
| // Get file with path | ||
| func (client Client) Get(path string) (file *os.File, err error) { | ||
| stream, err := client.GetStream(path) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| ext := filepath.Ext(path) | ||
| pattern := fmt.Sprintf("r2*%s", ext) | ||
|
|
||
| if err == nil { | ||
| if file, err = ioutil.TempFile("/tmp", pattern); err == nil { | ||
| defer stream.Close() | ||
| _, err = io.Copy(file, stream) | ||
| file.Seek(0, 0) | ||
| } | ||
| } | ||
|
|
||
| return file, err | ||
| } | ||
|
|
||
| // GetStream Get object as io.ReadCloser | ||
| func (client Client) GetStream(path string) (io.ReadCloser, error) { | ||
| params := &s3.GetObjectInput{ | ||
| Bucket: aws.String(client.Config.Bucket), | ||
| Key: aws.String(client.ToRelativePath(path)), | ||
| } | ||
| object, err := client.R2.GetObject(context.TODO(), params) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return object.Body, nil | ||
| } | ||
|
|
||
| // Put Save a reader interface into storage | ||
| func (client Client) Put(urlPath string, reader io.Reader) (*oss.Object, error) { | ||
| if seeker, ok := reader.(io.ReadSeeker); ok { | ||
| seeker.Seek(0, 0) | ||
| } | ||
|
|
||
| urlPath = client.ToRelativePath(urlPath) | ||
| buffer, err := ioutil.ReadAll(reader) | ||
|
|
||
| fileType := mime.TypeByExtension(path.Ext(urlPath)) | ||
| if fileType == "" { | ||
| fileType = http.DetectContentType(buffer) | ||
| } | ||
|
|
||
| params := &s3.PutObjectInput{ | ||
| Bucket: aws.String(client.Config.Bucket), // required | ||
| Key: aws.String(urlPath), // required | ||
| Body: bytes.NewReader(buffer), | ||
| ContentLength: int64(len(buffer)), | ||
| ContentType: aws.String(fileType), | ||
| } | ||
|
|
||
| _, err = client.R2.PutObject(context.TODO(), params) | ||
|
|
||
| now := time.Now() | ||
| return &oss.Object{ | ||
| Path: urlPath, | ||
| Name: filepath.Base(urlPath), | ||
| LastModified: &now, | ||
| StorageInterface: client, | ||
| }, err | ||
| } | ||
|
|
||
| // Delete file with path | ||
| func (client Client) Delete(path string) error { | ||
| params := &s3.DeleteObjectInput{ | ||
| Bucket: aws.String(client.Config.Bucket), | ||
| Key: aws.String(client.ToRelativePath(path)), | ||
| } | ||
|
|
||
| _, err := client.R2.DeleteObject(context.TODO(), params) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // List all objects under path | ||
| func (client Client) List(path string) ([]*oss.Object, error) { | ||
| var objects []*oss.Object | ||
| var prefix string | ||
|
|
||
| if path != "" { | ||
| prefix = client.ToRelativePath(path) | ||
| } | ||
|
|
||
| params := &s3.ListObjectsV2Input{ | ||
| Bucket: aws.String(client.Config.Bucket), | ||
| Prefix: aws.String(prefix), | ||
| } | ||
| listObjectsResponse, err := client.R2.ListObjectsV2(context.TODO(), params) | ||
| if err == nil { | ||
| for _, content := range listObjectsResponse.Contents { | ||
| objects = append(objects, &oss.Object{ | ||
| Path: client.ToRelativePath(*content.Key), | ||
| Name: filepath.Base(*content.Key), | ||
| LastModified: content.LastModified, | ||
| StorageInterface: client, | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| return objects, err | ||
| } | ||
|
|
||
| // GetURL Public Accessible URL (useful if current file saved privately) | ||
| func (client Client) GetURL(path string) (string, error) { | ||
| presignClient := s3.NewPresignClient(client.R2) | ||
| presignResult, err := presignClient.PresignPutObject(context.TODO(), &s3.PutObjectInput{ | ||
| Bucket: aws.String(client.Config.Endpoint), | ||
| Key: aws.String(client.ToRelativePath(path)), | ||
| }) | ||
| return presignResult.URL, err | ||
| } | ||
|
|
||
| // GetEndpoint string | ||
| func (client Client) GetEndpoint() string { | ||
| if client.Config.Bucket == "" { | ||
| endpoint := fmt.Sprintf("https://%s.r2.cloudflarestorage.com", client.Config.AccountId) | ||
| client.Config.Bucket = endpoint | ||
| } | ||
|
|
||
| return client.Config.Endpoint | ||
| } | ||
|
|
||
| var urlRegexp = regexp.MustCompile(`(https?:)?//((\w+).)+(\w+)/`) | ||
|
|
||
| // ToRelativePath process path to relative path | ||
| func (client Client) ToRelativePath(urlPath string) string { | ||
| if urlRegexp.MatchString(urlPath) { | ||
| if u, err := url.Parse(urlPath); err == nil { | ||
| return "/" + strings.TrimPrefix(u.Path, "/") | ||
| } | ||
| } | ||
|
|
||
| return "/" + strings.TrimPrefix(urlPath, "/") | ||
| } |
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