func StartServer(configFile string) {
b, err := ioutil.ReadFile(configFile)
if err != nil {
fmt.Println(configFile, " not found")
return
}
json, _ := simplejson.NewJson(b)
ip := json.Get("ip").MustString("127.0.0.1")
port := json.Get("port").MustInt(6776)
monitors := json.Get("monitors").MustMap()
for _, v := range monitors {
watcher, _ := fsnotify.NewWatcher()
monitored, _ := v.(string)
monitored = index.PathSafe(monitored)
db, _ := sql.Open("sqlite3", index.SlashSuffix(monitored)+".sync/index.db")
defer db.Close()
db.Exec("VACUUM;")
index.InitIndex(monitored, db)
go index.ProcessEvent(watcher, monitored)
index.WatchRecursively(watcher, monitored, monitored)
}
fmt.Println("Serving now...")
api.RunWeb(ip, port, monitors)
//watcher.Close()
}
func startWork(ip string, port int, key string, monitored string, maxInterval time.Duration) {
var lastIndexed int64 = 0
sleepTime := time.Second
for {
time.Sleep(sleepTime)
dirs := dirsFromServer(ip, port, key, lastIndexed-3600)
if len(dirs) > 0 {
for _, dir := range dirs {
dirMap, _ := dir.(map[string]interface{})
dirPath, _ := dirMap["FilePath"].(string)
dirStatus := dirMap["Status"].(string)
dir := index.PathSafe(index.SlashSuffix(monitored) + dirPath)
if dirStatus == "deleted" {
err := os.RemoveAll(dir)
if err != nil {
fmt.Println(err)
}
continue
}
mode, _ := dirMap["FileMode"].(json.Number)
dirMode, _ := mode.Int64()
err := os.MkdirAll(dir, os.FileMode(dirMode))
if err != nil {
fmt.Println(err)
}
}
files := filesFromServer(ip, port, key, "/", lastIndexed-3600)
for _, file := range files {
fileMap, _ := file.(map[string]interface{})
filePath, _ := fileMap["FilePath"].(string)
fileStatus := fileMap["Status"].(string)
indexed, _ := fileMap["LastIndexed"].(json.Number)
serverIndexed, _ := indexed.Int64()
if serverIndexed > lastIndexed {
lastIndexed = serverIndexed
}
f := index.PathSafe(index.SlashSuffix(monitored) + filePath)
if fileStatus == "deleted" {
err := os.RemoveAll(f)
if err != nil {
fmt.Println(err)
}
continue
}
size, _ := fileMap["FileSize"].(json.Number)
fileSize, _ := size.Int64()
if info, err := os.Stat(f); os.IsNotExist(err) {
// file does not exists, download it
func() {
out, _ := os.Create(f)
defer out.Close()
downloadFromServer(ip, port, key, filePath, 0, fileSize, out)
}()
} else {
// file exists, analyze it
modified, _ := fileMap["LastModified"].(json.Number)
lastModified, _ := modified.Int64()
if fileSize == info.Size() && lastModified < info.ModTime().Unix() {
// this file is probably not changed
continue
}
if monitorFilePart {
// file change, analyse it block by block
fileParts := filePartsFromServer(ip, port, key, filePath)
func() {
out, _ := os.OpenFile(f, os.O_RDWR, os.FileMode(0666))
defer out.Close()
out.Truncate(fileSize)
if len(fileParts) == 0 {
return
}
h := crc32.NewIEEE()
for _, filePart := range fileParts {
filePartMap, _ := filePart.(map[string]interface{})
idx, _ := filePartMap["StartIndex"].(json.Number)
startIndex, _ := idx.Int64()
ost, _ := filePartMap["Offset"].(json.Number)
offset, _ := ost.Int64()
checksum := filePartMap["Checksum"].(string)
buf := make([]byte, offset)
n, _ := out.ReadAt(buf, startIndex)
h.Reset()
h.Write(buf[:n])
v := fmt.Sprint(h.Sum32())
if checksum == v {
// block unchanged
return
}
// block changed
downloadFromServer(ip, port, key, filePath, startIndex, offset, out)
}
}()
} else {
func() {
out, _ := os.OpenFile(f, os.O_RDWR, os.FileMode(0666))
defer out.Close()
out.Truncate(fileSize)
downloadFromServer(ip, port, key, filePath, 0, fileSize, out)
}()
}
}
}
}
}
}
