X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=lib%2Fagent%2Fproject-pathmap.go;h=7a96e6e5ff2bd008d9e6aa8cefd0786a40e4dc15;hb=be13167b869161b6e19dc3e94835245cdc7911e5;hp=6c49d6a29b758491a2678cefdbeebb3e81f811ca;hpb=4695555e178bcabe54c5bf82117c9c4cef5440b5;p=src%2Fxds%2Fxds-agent.git

diff --git a/lib/agent/project-pathmap.go b/lib/agent/project-pathmap.go
index 6c49d6a..7a96e6e 100644
--- a/lib/agent/project-pathmap.go
+++ b/lib/agent/project-pathmap.go
@@ -1,5 +1,15 @@
 package agent
 
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+
+	"github.com/iotbzh/xds-agent/lib/apiv1"
+	common "github.com/iotbzh/xds-common/golib"
+)
+
 // IPROJECT interface implementation for native/path mapping projects
 
 // PathMap .
@@ -20,14 +30,57 @@ func NewProjectPathMap(ctx *Context, svr *XdsServer) *PathMap {
 }
 
 // Add a new project
-func (p *PathMap) Add(cfg ProjectConfig) (*ProjectConfig, error) {
+func (p *PathMap) Add(cfg apiv1.ProjectConfig) (*apiv1.ProjectConfig, error) {
 	var err error
+	var file *os.File
+	errMsg := "ClientPath sanity check error (%d): %v"
 
-	// SEB TODO: check local/server directory access
+	// Sanity check to verify that we have RW permission and path-mapping is correct
+	dir := cfg.ClientPath
+	if !common.Exists(dir) {
+		// try to create if not existing
+		if err := os.MkdirAll(dir, 0755); err != nil {
+			return nil, fmt.Errorf("Cannot create ClientPath directory: %s", dir)
+		}
+	}
+	if !common.Exists(dir) {
+		return nil, fmt.Errorf("ClientPath directory is not accessible: %s", dir)
+	}
+	if file, err = ioutil.TempFile(dir, ".xds_pathmap_check"); err != nil {
+		return nil, fmt.Errorf(errMsg, 1, err)
+	}
+	// Write a specific message that will be check by server during folder add
+	msg := "Pathmap checked message written by xds-agent ID: " + p.Config.AgentUID + "\n"
+	if n, err := file.WriteString(msg); n != len(msg) || err != nil {
+		return nil, fmt.Errorf(errMsg, 2, err)
+	}
+	defer func() {
+		if file != nil {
+			os.Remove(file.Name())
+			file.Close()
+		}
+	}()
 
-	err = p.server.FolderAdd(p.server.ProjectToFolder(cfg), p.folder)
+	// Convert to Xds folder
+	fld := p.server.ProjectToFolder(cfg)
+	fld.DataPathMap.CheckFile = file.Name()
+	fld.DataPathMap.CheckContent = msg
+
+	// Send request to create folder on XDS server side
+	err = p.server.FolderAdd(fld, p.folder)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("Folders mapping verification failure.\n%v", err)
+	}
+
+	// 2nd part of sanity checker
+	// check specific message added by XDS Server during folder add processing
+	content, err := ioutil.ReadFile(file.Name())
+	if err != nil {
+		return nil, fmt.Errorf(errMsg, 3, err)
+	}
+	if !strings.Contains(string(content),
+		"Pathmap checked message written by xds-server ID") {
+		return nil, fmt.Errorf(errMsg, 4, "file content differ")
 	}
 
 	return p.GetProject(), nil
@@ -39,17 +92,17 @@ func (p *PathMap) Delete() error {
 }
 
 // GetProject Get public part of project config
-func (p *PathMap) GetProject() *ProjectConfig {
+func (p *PathMap) GetProject() *apiv1.ProjectConfig {
 	prj := p.server.FolderToProject(*p.folder)
 	prj.ServerID = p.server.ID
 	return &prj
 }
 
 // UpdateProject Set project config
-func (p *PathMap) UpdateProject(prj ProjectConfig) (*ProjectConfig, error) {
+func (p *PathMap) UpdateProject(prj apiv1.ProjectConfig) (*apiv1.ProjectConfig, error) {
 	p.folder = p.server.ProjectToFolder(prj)
 	np := p.GetProject()
-	if err := p.events.Emit(EVTProjectChange, np); err != nil {
+	if err := p.events.Emit(apiv1.EVTProjectChange, np); err != nil {
 		return np, err
 	}
 	return np, nil