Merge pull request #693 from chrislusf/add_s3

Add "weed s3" to support S3 API

1 files changed, 88 insertions, 0 deletions

diff --git a/weed/s3api/s3api_errors.go b/weed/s3api/s3api_errors.go
new file mode 100644
index 000000000..771b1dd82
--- /dev/null
+++ b/weed/s3api/s3api_errors.go
@@ -0,0 +1,88 @@
+package s3api
+
+import (
+	"encoding/xml"
+	"net/http"
+)
+
+// APIError structure
+type APIError struct {
+	Code           string
+	Description    string
+	HTTPStatusCode int
+}
+
+// RESTErrorResponse - error response format
+type RESTErrorResponse struct {
+	XMLName   xml.Name `xml:"Error" json:"-"`
+	Code      string   `xml:"Code" json:"Code"`
+	Message   string   `xml:"Message" json:"Message"`
+	Resource  string   `xml:"Resource" json:"Resource"`
+	RequestID string   `xml:"RequestId" json:"RequestId"`
+}
+
+// ErrorCode type of error status.
+type ErrorCode int
+
+// Error codes, see full list at http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
+const (
+	ErrNone ErrorCode = iota
+	ErrMethodNotAllowed
+	ErrBucketNotEmpty
+	ErrBucketAlreadyExists
+	ErrBucketAlreadyOwnedByYou
+	ErrNoSuchBucket
+	ErrInvalidBucketName
+	ErrInvalidDigest
+	ErrInternalError
+)
+
+// error code to APIError structure, these fields carry respective
+// descriptions for all the error responses.
+var errorCodeResponse = map[ErrorCode]APIError{
+	ErrMethodNotAllowed: {
+		Code:           "MethodNotAllowed",
+		Description:    "The specified method is not allowed against this resource.",
+		HTTPStatusCode: http.StatusMethodNotAllowed,
+	},
+	ErrBucketNotEmpty: {
+		Code:           "BucketNotEmpty",
+		Description:    "The bucket you tried to delete is not empty",
+		HTTPStatusCode: http.StatusConflict,
+	},
+	ErrBucketAlreadyExists: {
+		Code:           "BucketAlreadyExists",
+		Description:    "The requested bucket name is not available. The bucket namespace is shared by all users of the system. Please select a different name and try again.",
+		HTTPStatusCode: http.StatusConflict,
+	},
+	ErrBucketAlreadyOwnedByYou: {
+		Code:           "BucketAlreadyOwnedByYou",
+		Description:    "Your previous request to create the named bucket succeeded and you already own it.",
+		HTTPStatusCode: http.StatusConflict,
+	},
+	ErrInvalidBucketName: {
+		Code:           "InvalidBucketName",
+		Description:    "The specified bucket is not valid.",
+		HTTPStatusCode: http.StatusBadRequest,
+	},
+	ErrInvalidDigest: {
+		Code:           "InvalidDigest",
+		Description:    "The Content-Md5 you specified is not valid.",
+		HTTPStatusCode: http.StatusBadRequest,
+	},
+	ErrNoSuchBucket: {
+		Code:           "NoSuchBucket",
+		Description:    "The specified bucket does not exist",
+		HTTPStatusCode: http.StatusNotFound,
+	},
+	ErrInternalError: {
+		Code:           "InternalError",
+		Description:    "We encountered an internal error, please try again.",
+		HTTPStatusCode: http.StatusInternalServerError,
+	},
+}
+
+// getAPIError provides API Error for input API error code.
+func getAPIError(code ErrorCode) APIError {
+	return errorCodeResponse[code]
+}