OP#792 initial commit after fork

cmd/api-resources.go

@@ -0,0 +1,153 @@
+// Copyright (c) 2015-2021 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package cmd
+
+import (
+	"encoding/base64"
+	"net/url"
+	"strconv"
+)
+
+// Parse bucket url queries
+func getListObjectsV1Args(values url.Values) (prefix, marker, delimiter string, maxkeys int, encodingType string, errCode APIErrorCode) {
+	errCode = ErrNone
+
+	if values.Get("max-keys") != "" {
+		var err error
+		if maxkeys, err = strconv.Atoi(values.Get("max-keys")); err != nil {
+			errCode = ErrInvalidMaxKeys
+			return prefix, marker, delimiter, maxkeys, encodingType, errCode
+		}
+	} else {
+		maxkeys = maxObjectList
+	}
+
+	prefix = values.Get("prefix")
+	marker = values.Get("marker")
+	delimiter = values.Get("delimiter")
+	encodingType = values.Get("encoding-type")
+	return prefix, marker, delimiter, maxkeys, encodingType, errCode
+}
+
+func getListBucketObjectVersionsArgs(values url.Values) (prefix, marker, delimiter string, maxkeys int, encodingType, versionIDMarker string, errCode APIErrorCode) {
+	errCode = ErrNone
+
+	if values.Get("max-keys") != "" {
+		var err error
+		if maxkeys, err = strconv.Atoi(values.Get("max-keys")); err != nil {
+			errCode = ErrInvalidMaxKeys
+			return prefix, marker, delimiter, maxkeys, encodingType, versionIDMarker, errCode
+		}
+	} else {
+		maxkeys = maxObjectList
+	}
+
+	prefix = values.Get("prefix")
+	marker = values.Get("key-marker")
+	delimiter = values.Get("delimiter")
+	encodingType = values.Get("encoding-type")
+	versionIDMarker = values.Get("version-id-marker")
+	return prefix, marker, delimiter, maxkeys, encodingType, versionIDMarker, errCode
+}
+
+// Parse bucket url queries for ListObjects V2.
+func getListObjectsV2Args(values url.Values) (prefix, token, startAfter, delimiter string, fetchOwner bool, maxkeys int, encodingType string, errCode APIErrorCode) {
+	errCode = ErrNone
+
+	// The continuation-token cannot be empty.
+	if val, ok := values["continuation-token"]; ok {
+		if len(val[0]) == 0 {
+			errCode = ErrIncorrectContinuationToken
+			return prefix, token, startAfter, delimiter, fetchOwner, maxkeys, encodingType, errCode
+		}
+	}
+
+	if values.Get("max-keys") != "" {
+		var err error
+		if maxkeys, err = strconv.Atoi(values.Get("max-keys")); err != nil {
+			errCode = ErrInvalidMaxKeys
+			return prefix, token, startAfter, delimiter, fetchOwner, maxkeys, encodingType, errCode
+		}
+	} else {
+		maxkeys = maxObjectList
+	}
+
+	prefix = values.Get("prefix")
+	startAfter = values.Get("start-after")
+	delimiter = values.Get("delimiter")
+	fetchOwner = values.Get("fetch-owner") == "true"
+	encodingType = values.Get("encoding-type")
+
+	if token = values.Get("continuation-token"); token != "" {
+		decodedToken, err := base64.StdEncoding.DecodeString(token)
+		if err != nil {
+			errCode = ErrIncorrectContinuationToken
+			return prefix, token, startAfter, delimiter, fetchOwner, maxkeys, encodingType, errCode
+		}
+		token = string(decodedToken)
+	}
+	return prefix, token, startAfter, delimiter, fetchOwner, maxkeys, encodingType, errCode
+}
+
+// Parse bucket url queries for ?uploads
+func getBucketMultipartResources(values url.Values) (prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int, encodingType string, errCode APIErrorCode) {
+	errCode = ErrNone
+
+	if values.Get("max-uploads") != "" {
+		var err error
+		if maxUploads, err = strconv.Atoi(values.Get("max-uploads")); err != nil {
+			errCode = ErrInvalidMaxUploads
+			return prefix, keyMarker, uploadIDMarker, delimiter, maxUploads, encodingType, errCode
+		}
+	} else {
+		maxUploads = maxUploadsList
+	}
+
+	prefix = values.Get("prefix")
+	keyMarker = values.Get("key-marker")
+	uploadIDMarker = values.Get("upload-id-marker")
+	delimiter = values.Get("delimiter")
+	encodingType = values.Get("encoding-type")
+	return prefix, keyMarker, uploadIDMarker, delimiter, maxUploads, encodingType, errCode
+}
+
+// Parse object url queries
+func getObjectResources(values url.Values) (uploadID string, partNumberMarker, maxParts int, encodingType string, errCode APIErrorCode) {
+	var err error
+	errCode = ErrNone
+
+	if values.Get("max-parts") != "" {
+		if maxParts, err = strconv.Atoi(values.Get("max-parts")); err != nil {
+			errCode = ErrInvalidMaxParts
+			return uploadID, partNumberMarker, maxParts, encodingType, errCode
+		}
+	} else {
+		maxParts = maxPartsList
+	}
+
+	if values.Get("part-number-marker") != "" {
+		if partNumberMarker, err = strconv.Atoi(values.Get("part-number-marker")); err != nil {
+			errCode = ErrInvalidPartNumberMarker
+			return uploadID, partNumberMarker, maxParts, encodingType, errCode
+		}
+	}
+
+	uploadID = values.Get("uploadId")
+	encodingType = values.Get("encoding-type")
+	return uploadID, partNumberMarker, maxParts, encodingType, errCode
+}