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authorSebastien Douheret <sebastien.douheret@iot.bzh>2017-11-29 08:54:00 +0100
committerSebastien Douheret <sebastien.douheret@iot.bzh>2017-11-29 11:10:30 +0100
commit2f7828d01f4c4ca2909f95f098627cd5475ed225 (patch)
treeb5e71920b813b95cae3e32044be08b99223348ec /lib/xdsserver/folder-pathmap.go
parent5caebfb4b7c3b73988f067082b219ce5b7f409ba (diff)
Refit source files to have a public xs-apiv1 lib package.
Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>
Diffstat (limited to 'lib/xdsserver/folder-pathmap.go')
-rw-r--r--lib/xdsserver/folder-pathmap.go175
1 files changed, 175 insertions, 0 deletions
diff --git a/lib/xdsserver/folder-pathmap.go b/lib/xdsserver/folder-pathmap.go
new file mode 100644
index 0000000..c5318de
--- /dev/null
+++ b/lib/xdsserver/folder-pathmap.go
@@ -0,0 +1,175 @@
+package xdsserver
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "path/filepath"
+ "strings"
+
+ common "github.com/iotbzh/xds-common/golib"
+ "github.com/iotbzh/xds-server/lib/xsapiv1"
+ uuid "github.com/satori/go.uuid"
+)
+
+// IFOLDER interface implementation for native/path mapping folders
+
+// PathMap .
+type PathMap struct {
+ *Context
+ config xsapiv1.FolderConfig
+}
+
+// NewFolderPathMap Create a new instance of PathMap
+func NewFolderPathMap(ctx *Context) *PathMap {
+ f := PathMap{
+ Context: ctx,
+ config: xsapiv1.FolderConfig{
+ Status: xsapiv1.StatusDisable,
+ },
+ }
+ return &f
+}
+
+// NewUID Get a UUID
+func (f *PathMap) NewUID(suffix string) string {
+ uuid := uuid.NewV1().String()
+ if len(suffix) > 0 {
+ uuid += "_" + suffix
+ }
+ return uuid
+}
+
+// Add a new folder
+func (f *PathMap) Add(cfg xsapiv1.FolderConfig) (*xsapiv1.FolderConfig, error) {
+ if cfg.DataPathMap.ServerPath == "" {
+ return nil, fmt.Errorf("ServerPath must be set")
+ }
+
+ // Use shareRootDir if ServerPath is a relative path
+ dir := cfg.DataPathMap.ServerPath
+ if !filepath.IsAbs(dir) {
+ dir = filepath.Join(f.Config.FileConf.ShareRootDir, dir)
+ }
+
+ // Sanity check
+ if !common.Exists(dir) {
+ // try to create if not existing
+ if err := os.MkdirAll(dir, 0755); err != nil {
+ return nil, fmt.Errorf("Cannot create ServerPath directory: %s", dir)
+ }
+ }
+ if !common.Exists(dir) {
+ return nil, fmt.Errorf("ServerPath directory is not accessible: %s", dir)
+ }
+
+ f.config = cfg
+ f.config.RootPath = dir
+ f.config.DataPathMap.ServerPath = dir
+ f.config.IsInSync = true
+
+ // Verify file created by XDS agent when needed
+ if cfg.DataPathMap.CheckFile != "" {
+ errMsg := "ServerPath sanity check error (%d): %v"
+ ckFile := f.ConvPathCli2Svr(cfg.DataPathMap.CheckFile)
+ if !common.Exists(ckFile) {
+ return nil, fmt.Errorf(errMsg, 1, "file not present")
+ }
+ if cfg.DataPathMap.CheckContent != "" {
+ fd, err := os.OpenFile(ckFile, os.O_APPEND|os.O_RDWR, 0600)
+ if err != nil {
+ return nil, fmt.Errorf(errMsg, 2, err)
+ }
+ defer fd.Close()
+
+ // Check specific message written by agent
+ content, err := ioutil.ReadAll(fd)
+ if err != nil {
+ return nil, fmt.Errorf(errMsg, 3, err)
+ }
+ if string(content) != cfg.DataPathMap.CheckContent {
+ return nil, fmt.Errorf(errMsg, 4, "file content differ")
+ }
+
+ // Write a specific message that will be check back on agent side
+ msg := "Pathmap checked message written by xds-server ID: " + f.Config.ServerUID + "\n"
+ if n, err := fd.WriteString(msg); n != len(msg) || err != nil {
+ return nil, fmt.Errorf(errMsg, 5, err)
+ }
+ }
+ }
+
+ f.config.Status = xsapiv1.StatusEnable
+
+ return &f.config, nil
+}
+
+// GetConfig Get public part of folder config
+func (f *PathMap) GetConfig() xsapiv1.FolderConfig {
+ return f.config
+}
+
+// GetFullPath returns the full path of a directory (from server POV)
+func (f *PathMap) GetFullPath(dir string) string {
+ if &dir == nil {
+ return f.config.DataPathMap.ServerPath
+ }
+ return filepath.Join(f.config.DataPathMap.ServerPath, dir)
+}
+
+// ConvPathCli2Svr Convert path from Client to Server
+func (f *PathMap) ConvPathCli2Svr(s string) string {
+ if f.config.ClientPath != "" && f.config.DataPathMap.ServerPath != "" {
+ return strings.Replace(s,
+ f.config.ClientPath,
+ f.config.DataPathMap.ServerPath,
+ -1)
+ }
+ return s
+}
+
+// ConvPathSvr2Cli Convert path from Server to Client
+func (f *PathMap) ConvPathSvr2Cli(s string) string {
+ if f.config.ClientPath != "" && f.config.DataPathMap.ServerPath != "" {
+ return strings.Replace(s,
+ f.config.DataPathMap.ServerPath,
+ f.config.ClientPath,
+ -1)
+ }
+ return s
+}
+
+// Remove a folder
+func (f *PathMap) Remove() error {
+ // nothing to do
+ return nil
+}
+
+// Update update some fields of a folder
+func (f *PathMap) Update(cfg xsapiv1.FolderConfig) (*xsapiv1.FolderConfig, error) {
+ if f.config.ID != cfg.ID {
+ return nil, fmt.Errorf("Invalid id")
+ }
+ f.config = cfg
+ return &f.config, nil
+}
+
+// RegisterEventChange requests registration for folder change event
+func (f *PathMap) RegisterEventChange(cb *FolderEventCB, data *FolderEventCBData) error {
+ return nil
+}
+
+// UnRegisterEventChange remove registered callback
+func (f *PathMap) UnRegisterEventChange() error {
+ return nil
+}
+
+// Sync Force folder files synchronization
+func (f *PathMap) Sync() error {
+ return nil
+}
+
+// IsInSync Check if folder files are in-sync
+func (f *PathMap) IsInSync() (bool, error) {
+ return true, nil
+}