Harshavardhana
9 years ago
commit
06e3171076
@ -1,56 +0,0 @@ |
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/* |
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* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package main |
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import ( |
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"github.com/minio/minio/pkg/probe" |
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"github.com/minio/minio/pkg/quick" |
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) |
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var multipartsMetadataPath string |
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// SetFSMultipartsMetadataPath - set custom multiparts session metadata path.
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func setFSMultipartsMetadataPath(metadataPath string) { |
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multipartsMetadataPath = metadataPath |
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} |
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// saveMultipartsSession - save multiparts.
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func saveMultipartsSession(mparts multiparts) *probe.Error { |
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qc, err := quick.New(mparts) |
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if err != nil { |
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return err.Trace() |
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} |
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if err := qc.Save(multipartsMetadataPath); err != nil { |
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return err.Trace() |
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} |
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return nil |
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} |
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// loadMultipartsSession load multipart session file.
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func loadMultipartsSession() (*multiparts, *probe.Error) { |
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mparts := &multiparts{} |
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mparts.Version = "1" |
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mparts.ActiveSession = make(map[string]*multipartSession) |
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qc, err := quick.New(mparts) |
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if err != nil { |
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return nil, err.Trace() |
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} |
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if err := qc.Load(multipartsMetadataPath); err != nil { |
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return nil, err.Trace() |
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} |
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return qc.Data().(*multiparts), nil |
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} |
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@ -0,0 +1,395 @@ |
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/* |
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* Minio Cloud Storage, (C) 2016 Minio, Inc. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package main |
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import ( |
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"errors" |
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"io" |
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"os" |
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"path/filepath" |
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"sort" |
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"strings" |
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"time" |
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) |
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// DirEntry - directory entry
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type DirEntry struct { |
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Name string |
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Size int64 |
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Mode os.FileMode |
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ModTime time.Time |
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} |
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// IsDir - returns true if DirEntry is a directory
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func (entry DirEntry) IsDir() bool { |
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return entry.Mode.IsDir() |
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} |
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// IsSymlink - returns true if DirEntry is a symbolic link
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func (entry DirEntry) IsSymlink() bool { |
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return entry.Mode&os.ModeSymlink == os.ModeSymlink |
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} |
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// IsRegular - returns true if DirEntry is a regular file
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func (entry DirEntry) IsRegular() bool { |
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return entry.Mode.IsRegular() |
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} |
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// sort interface for DirEntry slice
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type byEntryName []DirEntry |
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func (f byEntryName) Len() int { return len(f) } |
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func (f byEntryName) Swap(i, j int) { f[i], f[j] = f[j], f[i] } |
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func (f byEntryName) Less(i, j int) bool { return f[i].Name < f[j].Name } |
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func filteredReaddir(dirname string, filter func(DirEntry) bool, appendPath bool) ([]DirEntry, error) { |
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result := []DirEntry{} |
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d, err := os.Open(dirname) |
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if err != nil { |
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return result, err |
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} |
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defer d.Close() |
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for { |
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fis, err := d.Readdir(1000) |
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if err != nil { |
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if err == io.EOF { |
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break |
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} |
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return result, err |
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} |
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for _, fi := range fis { |
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name := fi.Name() |
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if appendPath { |
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name = filepath.Join(dirname, name) |
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} |
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if fi.IsDir() { |
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name += string(os.PathSeparator) |
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} |
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entry := DirEntry{Name: name, Size: fi.Size(), Mode: fi.Mode(), ModTime: fi.ModTime()} |
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if filter == nil || filter(entry) { |
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result = append(result, entry) |
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} |
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} |
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} |
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sort.Sort(byEntryName(result)) |
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return result, nil |
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} |
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func filteredReaddirnames(dirname string, filter func(string) bool) ([]string, error) { |
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result := []string{} |
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d, err := os.Open(dirname) |
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if err != nil { |
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return result, err |
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} |
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defer d.Close() |
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for { |
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names, err := d.Readdirnames(1000) |
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if err != nil { |
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if err == io.EOF { |
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break |
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} |
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return result, err |
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} |
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for _, name := range names { |
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if filter == nil || filter(name) { |
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result = append(result, name) |
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} |
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} |
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} |
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sort.Strings(result) |
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return result, nil |
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} |
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func scanMultipartDir(bucketDir, prefixPath, markerPath, uploadIDMarker string, recursive bool) multipartObjectInfoChannel { |
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objectInfoCh := make(chan multipartObjectInfo, listObjectsLimit) |
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timeoutCh := make(chan struct{}, 1) |
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// TODO: check if bucketDir is absolute path
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scanDir := bucketDir |
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dirDepth := bucketDir |
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if prefixPath != "" { |
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if !filepath.IsAbs(prefixPath) { |
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tmpPrefixPath := filepath.Join(bucketDir, prefixPath) |
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if strings.HasSuffix(prefixPath, string(os.PathSeparator)) { |
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tmpPrefixPath += string(os.PathSeparator) |
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} |
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prefixPath = tmpPrefixPath |
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} |
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// TODO: check if prefixPath starts with bucketDir
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// Case #1: if prefixPath is /mnt/mys3/mybucket/2012/photos/paris, then
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// dirDepth is /mnt/mys3/mybucket/2012/photos
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// Case #2: if prefixPath is /mnt/mys3/mybucket/2012/photos/, then
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// dirDepth is /mnt/mys3/mybucket/2012/photos
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dirDepth = filepath.Dir(prefixPath) |
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scanDir = dirDepth |
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} else { |
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prefixPath = bucketDir |
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} |
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if markerPath != "" { |
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if !filepath.IsAbs(markerPath) { |
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tmpMarkerPath := filepath.Join(bucketDir, markerPath) |
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if strings.HasSuffix(markerPath, string(os.PathSeparator)) { |
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tmpMarkerPath += string(os.PathSeparator) |
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} |
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markerPath = tmpMarkerPath |
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} |
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// TODO: check markerPath must be a file
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if uploadIDMarker != "" { |
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markerPath = filepath.Join(markerPath, uploadIDMarker+uploadIDSuffix) |
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} |
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// TODO: check if markerPath starts with bucketDir
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// TODO: check if markerPath starts with prefixPath
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// Case #1: if markerPath is /mnt/mys3/mybucket/2012/photos/gophercon.png, then
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// scanDir is /mnt/mys3/mybucket/2012/photos
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// Case #2: if markerPath is /mnt/mys3/mybucket/2012/photos/gophercon.png/1fbd117a-268a-4ed0-85c9-8cc3888cbf20.uploadid, then
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// scanDir is /mnt/mys3/mybucket/2012/photos/gophercon.png
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// Case #3: if markerPath is /mnt/mys3/mybucket/2012/photos/, then
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// scanDir is /mnt/mys3/mybucket/2012/photos
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scanDir = filepath.Dir(markerPath) |
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} else { |
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markerPath = bucketDir |
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} |
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// Have bucketDir ends with os.PathSeparator
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if !strings.HasSuffix(bucketDir, string(os.PathSeparator)) { |
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bucketDir += string(os.PathSeparator) |
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} |
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// Remove os.PathSeparator if scanDir ends with
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if strings.HasSuffix(scanDir, string(os.PathSeparator)) { |
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scanDir = filepath.Dir(scanDir) |
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} |
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// goroutine - retrieves directory entries, makes ObjectInfo and sends into the channel.
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go func() { |
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defer close(objectInfoCh) |
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defer close(timeoutCh) |
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// send function - returns true if ObjectInfo is sent
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// within (time.Second * 15) else false on timeout.
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send := func(oi multipartObjectInfo) bool { |
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timer := time.After(time.Second * 15) |
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select { |
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case objectInfoCh <- oi: |
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return true |
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case <-timer: |
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timeoutCh <- struct{}{} |
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return false |
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} |
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} |
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for { |
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entries, err := filteredReaddir(scanDir, |
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func(entry DirEntry) bool { |
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if entry.IsDir() || (entry.IsRegular() && strings.HasSuffix(entry.Name, uploadIDSuffix)) { |
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return strings.HasPrefix(entry.Name, prefixPath) && entry.Name > markerPath |
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} |
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return false |
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}, |
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true) |
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if err != nil { |
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send(multipartObjectInfo{Err: err}) |
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return |
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} |
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var entry DirEntry |
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for len(entries) > 0 { |
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entry, entries = entries[0], entries[1:] |
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if entry.IsRegular() { |
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// Handle uploadid file
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name := strings.Replace(filepath.Dir(entry.Name), bucketDir, "", 1) |
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if name == "" { |
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// This should not happen ie uploadid file should not be in bucket directory
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send(multipartObjectInfo{Err: errors.New("corrupted meta data")}) |
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return |
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} |
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uploadID := strings.Split(filepath.Base(entry.Name), uploadIDSuffix)[0] |
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objInfo := multipartObjectInfo{ |
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Name: name, |
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UploadID: uploadID, |
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ModifiedTime: entry.ModTime, |
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} |
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if !send(objInfo) { |
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return |
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} |
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continue |
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} |
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subentries, err := filteredReaddir(entry.Name, |
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func(entry DirEntry) bool { |
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return entry.IsDir() || (entry.IsRegular() && strings.HasSuffix(entry.Name, uploadIDSuffix)) |
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}, |
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true) |
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if err != nil { |
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send(multipartObjectInfo{Err: err}) |
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return |
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} |
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subDirFound := false |
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uploadIDEntries := []DirEntry{} |
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// If subentries has a directory, then current entry needs to be sent
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for _, subentry := range subentries { |
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if subentry.IsDir() { |
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subDirFound = true |
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if recursive { |
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break |
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} |
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} |
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if !recursive && subentry.IsRegular() { |
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uploadIDEntries = append(uploadIDEntries, subentry) |
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} |
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} |
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if subDirFound || len(subentries) == 0 { |
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objInfo := multipartObjectInfo{ |
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Name: strings.Replace(entry.Name, bucketDir, "", 1), |
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ModifiedTime: entry.ModTime, |
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IsDir: true, |
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} |
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if !send(objInfo) { |
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return |
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} |
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} |
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if recursive { |
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entries = append(subentries, entries...) |
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} else { |
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entries = append(uploadIDEntries, entries...) |
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} |
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} |
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if !recursive { |
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break |
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} |
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markerPath = scanDir + string(os.PathSeparator) |
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if scanDir = filepath.Dir(scanDir); scanDir < dirDepth { |
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break |
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} |
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} |
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}() |
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return multipartObjectInfoChannel{ch: objectInfoCh, timeoutCh: timeoutCh} |
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} |
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// multipartObjectInfo - Multipart object info
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type multipartObjectInfo struct { |
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Name string |
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UploadID string |
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ModifiedTime time.Time |
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IsDir bool |
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Err error |
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} |
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// multipartObjectInfoChannel - multipart object info channel
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type multipartObjectInfoChannel struct { |
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ch <-chan multipartObjectInfo |
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objInfo *multipartObjectInfo |
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closed bool |
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timeoutCh <-chan struct{} |
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timedOut bool |
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} |
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func (oic *multipartObjectInfoChannel) Read() (multipartObjectInfo, bool) { |
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if oic.closed { |
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return multipartObjectInfo{}, false |
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} |
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if oic.objInfo == nil { |
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// First read.
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if oi, ok := <-oic.ch; ok { |
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oic.objInfo = &oi |
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} else { |
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oic.closed = true |
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return multipartObjectInfo{}, false |
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} |
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} |
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retObjInfo := *oic.objInfo |
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status := true |
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oic.objInfo = nil |
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// Read once more to know whether it was last read.
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if oi, ok := <-oic.ch; ok { |
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oic.objInfo = &oi |
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} else { |
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oic.closed = true |
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} |
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return retObjInfo, status |
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} |
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// IsClosed - return whether channel is closed or not.
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func (oic multipartObjectInfoChannel) IsClosed() bool { |
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|
if oic.objInfo != nil { |
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return false |
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} |
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return oic.closed |
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} |
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// IsTimedOut - return whether channel is closed due to timeout.
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func (oic multipartObjectInfoChannel) IsTimedOut() bool { |
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|
if oic.timedOut { |
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return true |
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|
} |
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||||||
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select { |
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|
case _, ok := <-oic.timeoutCh: |
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|
if ok { |
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|
oic.timedOut = true |
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return true |
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|
} |
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return false |
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default: |
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return false |
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|
} |
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} |
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File diff suppressed because it is too large
Load Diff
@ -0,0 +1,202 @@ |
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|
Apache License |
||||||
|
Version 2.0, January 2004 |
||||||
|
http://www.apache.org/licenses/ |
||||||
|
|
||||||
|
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION |
||||||
|
|
||||||
|
1. Definitions. |
||||||
|
|
||||||
|
"License" shall mean the terms and conditions for use, reproduction, |
||||||
|
and distribution as defined by Sections 1 through 9 of this document. |
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|
|
||||||
|
"Licensor" shall mean the copyright owner or entity authorized by |
||||||
|
the copyright owner that is granting the License. |
||||||
|
|
||||||
|
"Legal Entity" shall mean the union of the acting entity and all |
||||||
|
other entities that control, are controlled by, or are under common |
||||||
|
control with that entity. For the purposes of this definition, |
||||||
|
"control" means (i) the power, direct or indirect, to cause the |
||||||
|
direction or management of such entity, whether by contract or |
||||||
|
otherwise, or (ii) ownership of fifty percent (50%) or more of the |
||||||
|
outstanding shares, or (iii) beneficial ownership of such entity. |
||||||
|
|
||||||
|
"You" (or "Your") shall mean an individual or Legal Entity |
||||||
|
exercising permissions granted by this License. |
||||||
|
|
||||||
|
"Source" form shall mean the preferred form for making modifications, |
||||||
|
including but not limited to software source code, documentation |
||||||
|
source, and configuration files. |
||||||
|
|
||||||
|
"Object" form shall mean any form resulting from mechanical |
||||||
|
transformation or translation of a Source form, including but |
||||||
|
not limited to compiled object code, generated documentation, |
||||||
|
and conversions to other media types. |
||||||
|
|
||||||
|
"Work" shall mean the work of authorship, whether in Source or |
||||||
|
Object form, made available under the License, as indicated by a |
||||||
|
copyright notice that is included in or attached to the work |
||||||
|
(an example is provided in the Appendix below). |
||||||
|
|
||||||
|
"Derivative Works" shall mean any work, whether in Source or Object |
||||||
|
form, that is based on (or derived from) the Work and for which the |
||||||
|
editorial revisions, annotations, elaborations, or other modifications |
||||||
|
represent, as a whole, an original work of authorship. For the purposes |
||||||
|
of this License, Derivative Works shall not include works that remain |
||||||
|
separable from, or merely link (or bind by name) to the interfaces of, |
||||||
|
the Work and Derivative Works thereof. |
||||||
|
|
||||||
|
"Contribution" shall mean any work of authorship, including |
||||||
|
the original version of the Work and any modifications or additions |
||||||
|
to that Work or Derivative Works thereof, that is intentionally |
||||||
|
submitted to Licensor for inclusion in the Work by the copyright owner |
||||||
|
or by an individual or Legal Entity authorized to submit on behalf of |
||||||
|
the copyright owner. For the purposes of this definition, "submitted" |
||||||
|
means any form of electronic, verbal, or written communication sent |
||||||
|
to the Licensor or its representatives, including but not limited to |
||||||
|
communication on electronic mailing lists, source code control systems, |
||||||
|
and issue tracking systems that are managed by, or on behalf of, the |
||||||
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Licensor for the purpose of discussing and improving the Work, but |
||||||
|
excluding communication that is conspicuously marked or otherwise |
||||||
|
designated in writing by the copyright owner as "Not a Contribution." |
||||||
|
|
||||||
|
"Contributor" shall mean Licensor and any individual or Legal Entity |
||||||
|
on behalf of whom a Contribution has been received by Licensor and |
||||||
|
subsequently incorporated within the Work. |
||||||
|
|
||||||
|
2. Grant of Copyright License. Subject to the terms and conditions of |
||||||
|
this License, each Contributor hereby grants to You a perpetual, |
||||||
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable |
||||||
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||||||
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publicly display, publicly perform, sublicense, and distribute the |
||||||
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||||||
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||||||
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3. Grant of Patent License. Subject to the terms and conditions of |
||||||
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this License, each Contributor hereby grants to You a perpetual, |
||||||
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable |
||||||
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use, offer to sell, sell, import, and otherwise transfer the Work, |
||||||
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where such license applies only to those patent claims licensable |
||||||
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by such Contributor that are necessarily infringed by their |
||||||
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Contribution(s) alone or by combination of their Contribution(s) |
||||||
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with the Work to which such Contribution(s) was submitted. If You |
||||||
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institute patent litigation against any entity (including a |
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cross-claim or counterclaim in a lawsuit) alleging that the Work |
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or a Contribution incorporated within the Work constitutes direct |
||||||
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or contributory patent infringement, then any patent licenses |
||||||
|
granted to You under this License for that Work shall terminate |
||||||
|
as of the date such litigation is filed. |
||||||
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|
||||||
|
4. Redistribution. You may reproduce and distribute copies of the |
||||||
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Work or Derivative Works thereof in any medium, with or without |
||||||
|
modifications, and in Source or Object form, provided that You |
||||||
|
meet the following conditions: |
||||||
|
|
||||||
|
(a) You must give any other recipients of the Work or |
||||||
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Derivative Works a copy of this License; and |
||||||
|
|
||||||
|
(b) You must cause any modified files to carry prominent notices |
||||||
|
stating that You changed the files; and |
||||||
|
|
||||||
|
(c) You must retain, in the Source form of any Derivative Works |
||||||
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that You distribute, all copyright, patent, trademark, and |
||||||
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attribution notices from the Source form of the Work, |
||||||
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excluding those notices that do not pertain to any part of |
||||||
|
the Derivative Works; and |
||||||
|
|
||||||
|
(d) If the Work includes a "NOTICE" text file as part of its |
||||||
|
distribution, then any Derivative Works that You distribute must |
||||||
|
include a readable copy of the attribution notices contained |
||||||
|
within such NOTICE file, excluding those notices that do not |
||||||
|
pertain to any part of the Derivative Works, in at least one |
||||||
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of the following places: within a NOTICE text file distributed |
||||||
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as part of the Derivative Works; within the Source form or |
||||||
|
documentation, if provided along with the Derivative Works; or, |
||||||
|
within a display generated by the Derivative Works, if and |
||||||
|
wherever such third-party notices normally appear. The contents |
||||||
|
of the NOTICE file are for informational purposes only and |
||||||
|
do not modify the License. You may add Your own attribution |
||||||
|
notices within Derivative Works that You distribute, alongside |
||||||
|
or as an addendum to the NOTICE text from the Work, provided |
||||||
|
that such additional attribution notices cannot be construed |
||||||
|
as modifying the License. |
||||||
|
|
||||||
|
You may add Your own copyright statement to Your modifications and |
||||||
|
may provide additional or different license terms and conditions |
||||||
|
for use, reproduction, or distribution of Your modifications, or |
||||||
|
for any such Derivative Works as a whole, provided Your use, |
||||||
|
reproduction, and distribution of the Work otherwise complies with |
||||||
|
the conditions stated in this License. |
||||||
|
|
||||||
|
5. Submission of Contributions. Unless You explicitly state otherwise, |
||||||
|
any Contribution intentionally submitted for inclusion in the Work |
||||||
|
by You to the Licensor shall be under the terms and conditions of |
||||||
|
this License, without any additional terms or conditions. |
||||||
|
Notwithstanding the above, nothing herein shall supersede or modify |
||||||
|
the terms of any separate license agreement you may have executed |
||||||
|
with Licensor regarding such Contributions. |
||||||
|
|
||||||
|
6. Trademarks. This License does not grant permission to use the trade |
||||||
|
names, trademarks, service marks, or product names of the Licensor, |
||||||
|
except as required for reasonable and customary use in describing the |
||||||
|
origin of the Work and reproducing the content of the NOTICE file. |
||||||
|
|
||||||
|
7. Disclaimer of Warranty. Unless required by applicable law or |
||||||
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agreed to in writing, Licensor provides the Work (and each |
||||||
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implied, including, without limitation, any warranties or conditions |
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of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A |
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PARTICULAR PURPOSE. You are solely responsible for determining the |
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appropriateness of using or redistributing the Work and assume any |
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risks associated with Your exercise of permissions under this License. |
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||||||
|
8. Limitation of Liability. In no event and under no legal theory, |
||||||
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whether in tort (including negligence), contract, or otherwise, |
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|
unless required by applicable law (such as deliberate and grossly |
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negligent acts) or agreed to in writing, shall any Contributor be |
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liable to You for damages, including any direct, indirect, special, |
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result of this License or out of the use or inability to use the |
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Work (including but not limited to damages for loss of goodwill, |
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work stoppage, computer failure or malfunction, or any and all |
||||||
|
other commercial damages or losses), even if such Contributor |
||||||
|
has been advised of the possibility of such damages. |
||||||
|
|
||||||
|
9. Accepting Warranty or Additional Liability. While redistributing |
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|
the Work or Derivative Works thereof, You may choose to offer, |
||||||
|
and charge a fee for, acceptance of support, warranty, indemnity, |
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or other liability obligations and/or rights consistent with this |
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|
License. However, in accepting such obligations, You may act only |
||||||
|
on Your own behalf and on Your sole responsibility, not on behalf |
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|
of any other Contributor, and only if You agree to indemnify, |
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|
defend, and hold each Contributor harmless for any liability |
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|
incurred by, or claims asserted against, such Contributor by reason |
||||||
|
of your accepting any such warranty or additional liability. |
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS |
||||||
|
|
||||||
|
APPENDIX: How to apply the Apache License to your work. |
||||||
|
|
||||||
|
To apply the Apache License to your work, attach the following |
||||||
|
boilerplate notice, with the fields enclosed by brackets "{}" |
||||||
|
replaced with your own identifying information. (Don't include |
||||||
|
the brackets!) The text should be enclosed in the appropriate |
||||||
|
comment syntax for the file format. We also recommend that a |
||||||
|
file or class name and description of purpose be included on the |
||||||
|
same "printed page" as the copyright notice for easier |
||||||
|
identification within third-party archives. |
||||||
|
|
||||||
|
Copyright {yyyy} {name of copyright owner} |
||||||
|
|
||||||
|
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. |
||||||
|
|
||||||
@ -0,0 +1,133 @@ |
|||||||
|
// Copyright 2015 Red Hat, 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 uuid |
||||||
|
|
||||||
|
import ( |
||||||
|
"crypto/rand" |
||||||
|
"encoding/hex" |
||||||
|
"errors" |
||||||
|
"fmt" |
||||||
|
"io" |
||||||
|
"strings" |
||||||
|
) |
||||||
|
|
||||||
|
// UUID is 128bits = 16bytes
|
||||||
|
type UUID [16]byte |
||||||
|
|
||||||
|
func (uuid UUID) String() string { |
||||||
|
return fmt.Sprintf("%x-%x-%x-%x-%x", uuid[0:4], uuid[4:6], uuid[6:8], uuid[8:10], uuid[10:]) |
||||||
|
} |
||||||
|
|
||||||
|
func (uuid UUID) IsZero() bool { |
||||||
|
var zeroUuid UUID |
||||||
|
return Equal(zeroUuid, uuid) |
||||||
|
} |
||||||
|
|
||||||
|
func (uuid UUID) MarshalJSON() ([]byte, error) { |
||||||
|
return []byte(`"` + uuid.String() + `"`), nil |
||||||
|
} |
||||||
|
|
||||||
|
func (uuid *UUID) UnmarshalJSON(b []byte) error { |
||||||
|
if u, err := Parse(string(b)); err != nil { |
||||||
|
return err |
||||||
|
} else { |
||||||
|
copy(uuid[:], u[:]) |
||||||
|
return nil |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
func New() (*UUID, error) { |
||||||
|
uuid := new(UUID) |
||||||
|
|
||||||
|
n, err := io.ReadFull(rand.Reader, uuid[:]) |
||||||
|
if err != nil { |
||||||
|
return nil, err |
||||||
|
} else if n != len(uuid) { |
||||||
|
return nil, errors.New(fmt.Sprintf("insufficient random data (expected: %d, read: %d)", len(uuid), n)) |
||||||
|
} else { |
||||||
|
// variant bits; for more info
|
||||||
|
// see https://www.ietf.org/rfc/rfc4122.txt section 4.1.1
|
||||||
|
uuid[8] = uuid[8]&0x3f | 0x80 |
||||||
|
// version 4 (pseudo-random); for more info
|
||||||
|
// see https://www.ietf.org/rfc/rfc4122.txt section 4.1.3
|
||||||
|
uuid[6] = uuid[6]&0x0f | 0x40 |
||||||
|
} |
||||||
|
|
||||||
|
return uuid, nil |
||||||
|
} |
||||||
|
|
||||||
|
func Equal(uuid1 UUID, uuid2 UUID) bool { |
||||||
|
for i, v := range uuid1 { |
||||||
|
if v != uuid2[i] { |
||||||
|
return false |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
return true |
||||||
|
} |
||||||
|
|
||||||
|
func Parse(s string) (*UUID, error) { |
||||||
|
// the string format should be either in
|
||||||
|
// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx (or)
|
||||||
|
// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
|
||||||
|
|
||||||
|
// If the uuid is marshaled by us we add " " around the uuid.
|
||||||
|
// while parsing this, we have to remove the " " around the
|
||||||
|
// uuid. So we check if uuid has " " around it, if yes we remove
|
||||||
|
// it.
|
||||||
|
|
||||||
|
if strings.HasPrefix(s, "\"") && strings.HasSuffix(s, "\"") { |
||||||
|
s = s[1 : len(s)-1] |
||||||
|
} |
||||||
|
|
||||||
|
uuid := new(UUID) |
||||||
|
if len(s) == 36 { |
||||||
|
if ba, err := hex.DecodeString(s[0:8]); err == nil { |
||||||
|
copy(uuid[:4], ba) |
||||||
|
} else { |
||||||
|
return nil, err |
||||||
|
} |
||||||
|
if ba, err := hex.DecodeString(s[9:13]); err == nil { |
||||||
|
copy(uuid[4:], ba) |
||||||
|
} else { |
||||||
|
return nil, err |
||||||
|
} |
||||||
|
if ba, err := hex.DecodeString(s[14:18]); err == nil { |
||||||
|
copy(uuid[6:], ba) |
||||||
|
} else { |
||||||
|
return nil, err |
||||||
|
} |
||||||
|
if ba, err := hex.DecodeString(s[19:23]); err == nil { |
||||||
|
copy(uuid[8:], ba) |
||||||
|
} else { |
||||||
|
return nil, err |
||||||
|
} |
||||||
|
if ba, err := hex.DecodeString(s[24:]); err == nil { |
||||||
|
copy(uuid[10:], ba) |
||||||
|
} else { |
||||||
|
return nil, err |
||||||
|
} |
||||||
|
} else if len(s) == 32 { |
||||||
|
if ba, err := hex.DecodeString(s); err == nil { |
||||||
|
copy(uuid[:], ba) |
||||||
|
} else { |
||||||
|
return nil, err |
||||||
|
} |
||||||
|
} else { |
||||||
|
return nil, errors.New("unknown UUID string " + s) |
||||||
|
} |
||||||
|
|
||||||
|
return uuid, nil |
||||||
|
} |
||||||
Loading…
Reference in new issue