151 lines
3.3 KiB
Go
151 lines
3.3 KiB
Go
// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
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//
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// This program is free software: you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by the Free
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// Software Foundation, either version 3 of the License, or (at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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// more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program. If not, see <http://www.gnu.org/licenses/>.
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package protocol
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import "fmt"
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type IndexMessage struct {
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Folder string // max:64
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Files []FileInfo
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}
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type FileInfo struct {
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Name string // max:8192
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Flags uint32
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Modified int64
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Version uint64
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LocalVersion uint64
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Blocks []BlockInfo
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}
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func (f FileInfo) String() string {
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return fmt.Sprintf("File{Name:%q, Flags:0%o, Modified:%d, Version:%d, Size:%d, Blocks:%v}",
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f.Name, f.Flags, f.Modified, f.Version, f.Size(), f.Blocks)
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}
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func (f FileInfo) Size() (bytes int64) {
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if IsDeleted(f.Flags) || IsDirectory(f.Flags) {
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return 128
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}
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for _, b := range f.Blocks {
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bytes += int64(b.Size)
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}
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return
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}
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func (f FileInfo) IsDeleted() bool {
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return IsDeleted(f.Flags)
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}
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func (f FileInfo) IsInvalid() bool {
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return IsInvalid(f.Flags)
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}
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// Used for unmarshalling a FileInfo structure but skipping the actual block list
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type FileInfoTruncated struct {
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Name string // max:8192
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Flags uint32
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Modified int64
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Version uint64
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LocalVersion uint64
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NumBlocks uint32
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}
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// Returns a statistical guess on the size, not the exact figure
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func (f FileInfoTruncated) Size() int64 {
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if IsDeleted(f.Flags) || IsDirectory(f.Flags) {
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return 128
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}
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if f.NumBlocks < 2 {
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return BlockSize / 2
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} else {
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return int64(f.NumBlocks-1)*BlockSize + BlockSize/2
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}
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}
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func (f FileInfoTruncated) IsDeleted() bool {
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return IsDeleted(f.Flags)
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}
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func (f FileInfoTruncated) IsInvalid() bool {
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return IsInvalid(f.Flags)
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}
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type FileIntf interface {
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Size() int64
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IsDeleted() bool
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IsInvalid() bool
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}
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type BlockInfo struct {
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Offset int64 // noencode (cache only)
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Size uint32
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Hash []byte // max:64
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}
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func (b BlockInfo) String() string {
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return fmt.Sprintf("Block{%d/%d/%x}", b.Offset, b.Size, b.Hash)
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}
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type RequestMessage struct {
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Folder string // max:64
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Name string // max:8192
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Offset uint64
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Size uint32
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}
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type ResponseMessage struct {
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Data []byte
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}
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type ClusterConfigMessage struct {
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ClientName string // max:64
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ClientVersion string // max:64
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Folders []Folder // max:64
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Options []Option // max:64
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}
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func (o *ClusterConfigMessage) GetOption(key string) string {
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for _, option := range o.Options {
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if option.Key == key {
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return option.Value
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}
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}
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return ""
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}
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type Folder struct {
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ID string // max:64
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Devices []Device // max:64
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}
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type Device struct {
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ID []byte // max:32
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Flags uint32
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MaxLocalVersion uint64
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}
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type Option struct {
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Key string // max:64
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Value string // max:1024
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}
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type CloseMessage struct {
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Reason string // max:1024
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}
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type EmptyMessage struct{}
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