func MoveFromTmp(src, dest string) (err error) {
err = os.Rename(src, dest)
if err != nil {
l := log.Errorf("Rename %v to %v error. %v", src, dest, err)
logq.LogPutqueue(l)
}
return err
}
func SetEnv(name string, value string) string {
if e := os.Setenv(name, value); e != nil {
log.Errorf("[setenv][%s] %s, error:%v\n", name, value, e)
return ""
}
log.Debugf("[setenv][%s] %s\n", name, value)
return name
}
func connectMysql() {
DB_ADDR := os.Getenv("MYSQL_PORT_3306_TCP_ADDR")
DB_PORT := os.Getenv("MYSQL_PORT_3306_TCP_PORT")
DB_DATABASE := os.Getenv("MYSQL_ENV_MYSQL_DATABASE")
DB_USER := os.Getenv("MYSQL_ENV_MYSQL_USER")
DB_PASSWORD := os.Getenv("MYSQL_ENV_MYSQL_PASSWORD")
DB_URL := fmt.Sprintf(`%s:%s@tcp(%s:%s)/%s?charset=utf8&parseTime=true`, DB_USER, DB_PASSWORD, DB_ADDR, DB_PORT, DB_DATABASE)
db, err := sql.Open("mysql", DB_URL)
if err != nil {
log.Errorf("error: %s\n", err)
} else {
g_ds.Db = db
g_ds.DbType = "mysql"
log.Println("Connect to Mysql successfully!")
}
}
func (fs *fsdriver) CheckDataAndGetSize(dpconn, itemlocation, fileName string) (exist bool, size int64, err error) {
destFullPathFileName := dpconn + "/" + itemlocation + "/" + fileName
if isFileExists(destFullPathFileName) == false {
exist = false
err = fmt.Errorf("%s not exist.", destFullPathFileName)
return
}
exist = true
size, err = GetFileSize(destFullPathFileName)
if err != nil {
l := log.Errorf("Get %s size error, %v", destFullPathFileName, err)
logq.LogPutqueue(l)
return exist, 0, err
}
return
}
func CheckTagExist(repo, item, tag string) (exits bool, err error) {
rpdmid, dpid, _ := GetRpdmidDpidItemdesc(repo, item)
if rpdmid == 0 || dpid == 0 {
l := log.Errorf("dataitem is not exist, %s/%s, rpdmid:%d, dpid:%d", repo, item, rpdmid, dpid)
logq.LogPutqueue(l)
return false, errors.New(fmt.Sprintf("Dataitem '%s' not found.", item))
}
sqlCheckTag := fmt.Sprintf("SELECT COUNT(1) FROM DH_RPDM_TAG_MAP WHERE RPDMID=%d AND TAGNAME='%s' AND STATUS='A'", rpdmid, tag)
row, err := g_ds.QueryRow(sqlCheckTag)
var count int
row.Scan(&count)
if count > 0 {
return true, nil
}
return
}
func GetMetaAndSampleAndPricePlan(dpname, itemdesc string) (meta, sample string, plans []PricePlan) {
dpconn := GetDataPoolDpconn(dpname)
if len(dpconn) == 0 || len(itemdesc) == 0 {
l := log.Errorf("dpconn:%s or itemdesc:%s is empty", dpconn, itemdesc)
logq.LogPutqueue(l)
return
}
path := dpconn + "/" + itemdesc
meta = GetMetaData(path)
sample = GetSampleData(path)
plans = GetPricePlan(path)
log.Debug(plans)
return
}
func GetItemslocationInDatapool(itemslocation map[string]string, dpname string, dpid int, dpconn string) error {
sql := fmt.Sprintf("SELECT DISTINCT ITEMDESC, REPOSITORY, DATAITEM FROM DH_DP_RPDM_MAP WHERE DPID=%v AND STATUS='A';", dpid)
log.Debug(sql)
rows, err := g_ds.QueryRows(sql)
if err != nil {
l := log.Errorf("datapool name %s, dpid %v, dpconn %v, error:%v", dpname, dpid, dpconn, err)
logq.LogPutqueue(l)
return err
}
var location, repo, item string
for rows.Next() {
rows.Scan(&location, &repo, &item)
log.Debug(location, repo, item)
itemslocation[location] = repo + "/" + item
}
log.Trace(itemslocation)
return err
}
/*pull parses filename and target IP from HTTP GET method, and start downloading routine. */
func p2p_pull(rw http.ResponseWriter, r *http.Request, ps httprouter.Params) {
l := log.Info("P2P PULL FROM", r.RemoteAddr, r.Method, r.URL.RequestURI(), r.Proto)
logq.LogPutqueue(l)
r.ParseForm()
sRepoName := ps.ByName("repo")
sDataItem := ps.ByName("dataitem")
sTag := ps.ByName("tag")
log.Info(sRepoName, sDataItem, sTag)
jobtag := fmt.Sprintf("%s/%s:%s", sRepoName, sDataItem, sTag)
var irpdmid, idpid int
var stagdetail, itemdesc, dpconn, dpname, dptype string
msg := &ds.MsgResp{}
msg.Msg = "OK."
irpdmid, idpid, itemdesc = GetRpdmidDpidItemdesc(sRepoName, sDataItem)
if len(itemdesc) == 0 {
itemdesc = sRepoName + "_" + sDataItem
}
log.Debug("dpid:", idpid, "rpdmid:", irpdmid, "itemdesc:", itemdesc)
stagdetail = GetTagDetail(irpdmid, sTag)
log.Debug("tagdetail", stagdetail)
if len(stagdetail) == 0 {
l := log.Warnf("%s(tag:%s) not found", stagdetail, sTag)
logq.LogPutqueue(l)
http.Error(rw, sTag+" not found", http.StatusNotFound)
return
}
dpconn, dpname, dptype = GetDpconnDpnameDptypeByDpid(idpid)
log.Debug("dpconn:", dpconn, "dpname:", dpname, "dptype:", dptype)
datapool, err := dpdriver.New(dptype)
if err != nil {
WriteErrLogAndResp(rw, http.StatusInternalServerError, cmd.ErrorNoDatapoolDriver, err)
return
}
filepathname := datapool.GetFileTobeSend(dpconn, dpname, itemdesc, stagdetail)
//filepathname := dpconn + "/" + itemdesc + "/" + stagdetail
log.Println("filename:", filepathname)
if exists := isFileExists(filepathname); !exists {
l := log.Error(filepathname, "not found")
logq.LogPutqueue(l)
putToJobQueue(jobtag, filepathname, "N/A", -1)
msg.Msg = fmt.Sprintf("Tag:%s not found", sTag)
resp, _ := json.Marshal(msg)
respStr := string(resp)
rw.WriteHeader(http.StatusNotFound)
fmt.Fprintln(rw, respStr)
return
}
tokenValid := false
retmsg := ""
token := r.Form.Get("token")
username := r.Form.Get("username")
log.Debug(r.URL, "----", r.FormValue("username"), "----", r.Form.Get("username"))
if len(token) > 0 && len(username) > 0 {
log.Println(r.URL.Path, "token:", token, "username:"******"/transaction/" + sRepoName + "/" + sDataItem + "/" + sTag +
"?cypt_accesstoken=" + token + "&username="******"Get %s size error, %v", filepathname, err)
logq.LogPutqueue(l)
}
log.Printf("Tag file full path name :%v, size:%v", filepathname, size)
//rw.Header().Set("Source-FileName", stagdetail)
bmd5, err := ComputeMd5(filepathname)
strmd5 := fmt.Sprintf("%x", bmd5)
if err != nil {
log.Error(filepathname, err, bmd5, strmd5)
} else {
rw.Header().Set("X-Source-MD5", strmd5)
}
rw.Header().Set("X-Source-FileSize", strconv.FormatInt(size, 10))
l = log.Info("transfering", filepathname, bmd5, strmd5)
logq.LogPutqueue(l)
jobid := putToJobQueue(jobtag, filepathname, "transfering", size)
http.ServeFile(rw, r, filepathname)
updateJobQueue(jobid, "transfered", 0)
return
}
/*download routine, supports resuming broken downloads.*/
func download(uri string, p ds.DsPull, w http.ResponseWriter, c chan int) (int64, error) {
log.Printf("we are going to download %s, save to dp=%s,name=%s\n", uri, p.Datapool, p.DestName)
var out *os.File
var err error
var destfilename, tmpdestfilename, tmpdir, dpconn, dptype string
dpconn, dptype = GetDataPoolDpconnAndDptype(p.Datapool)
if len(dpconn) == 0 {
err = fmt.Errorf("dpconn is null! datapool:%s ", p.Datapool)
return ErrLogAndResp(c, w, http.StatusBadRequest, cmd.ErrorNoRecord, err)
}
//New a datapool object
datapool, err := dpdriver.New(dptype)
if err != nil {
return ErrLogAndResp(c, w, http.StatusInternalServerError, cmd.ErrorNoDatapoolDriver, err)
}
destfilename, tmpdir, tmpdestfilename = datapool.GetDestFileName(dpconn, p.ItemDesc, p.DestName)
os.MkdirAll(tmpdir, 0777)
log.Info("open tmp destfile name:", tmpdestfilename)
out, err = os.OpenFile(tmpdestfilename, os.O_RDWR|os.O_CREATE, 0644)
if err != nil {
return ErrLogAndResp(c, w, http.StatusInternalServerError, cmd.ErrorOpenFile, err)
}
stat, err := out.Stat()
if err != nil {
return ErrLogAndResp(c, w, http.StatusInternalServerError, cmd.ErrorStatFile, err)
}
out.Seek(stat.Size(), 0)
req, err := http.NewRequest("GET", uri, nil)
req.Header.Set("User-Agent", "go-downloader")
/* Set download starting position with 'Range' in HTTP header*/
req.Header.Set("Range", "bytes="+strconv.FormatInt(stat.Size(), 10)+"-")
log.Printf("%v bytes had already been downloaded.\n", stat.Size())
log.Debug(EnvDebug("http_proxy", false))
resp, err := http.DefaultClient.Do(req)
/*Save response body to file only when HTTP 2xx received. TODO*/
if err != nil || (resp != nil && resp.StatusCode/100 != 2) {
log.Error("http error", err)
if resp != nil {
body, _ := ioutil.ReadAll(resp.Body)
l := log.Error("http status code:", resp.StatusCode, "response Body:", string(body), err)
logq.LogPutqueue(l)
struMsg := &ds.MsgResp{}
json.Unmarshal(body, struMsg)
msg := struMsg.Msg
if resp.StatusCode == 416 {
msg = tmpdestfilename + " has already been downloaded."
}
r, _ := buildResp(resp.StatusCode, msg, nil)
w.WriteHeader(resp.StatusCode)
w.Write(r)
} else {
HttpNoData(w, http.StatusInternalServerError, cmd.ErrorOtherError, err.Error())
}
filesize := stat.Size()
out.Close()
if filesize == 0 {
os.Remove(tmpdestfilename)
}
c <- -1
return 0, err
}
defer resp.Body.Close()
HttpNoData(w, http.StatusOK, cmd.ResultOK, strret)
//write channel
c <- 1
jobtag := p.Repository + "/" + p.Dataitem + ":" + p.Tag
srcsize, err := strconv.ParseInt(resp.Header.Get("X-Source-FileSize"), DECIMAL_BASE, INT_SIZE_64)
md5str := resp.Header.Get("X-Source-MD5")
status := "downloading"
log.Info("pull tag:", jobtag, tmpdestfilename, status, srcsize)
jobid := putToJobQueue(jobtag, tmpdestfilename, status, srcsize)
n, err := io.Copy(out, resp.Body)
if err != nil {
out.Close()
bl := log.Error(err)
logq.LogPutqueue(bl)
dlsize, e := GetFileSize(tmpdestfilename)
if e != nil {
l := log.Error(e)
logq.LogPutqueue(l)
}
status = "failed"
updateJobQueue(jobid, status, dlsize)
return 0, err
}
out.Close()
status = "downloaded"
if len(md5str) > 0 {
bmd5, err := ComputeMd5(tmpdestfilename)
bmd5str := fmt.Sprintf("%x", bmd5)
log.Debug("md5", md5str, tmpdestfilename, bmd5str)
if err != nil {
log.Error(tmpdestfilename, err, bmd5)
} else if md5str != bmd5str {
l := log.Errorf("check md5 code error! src md5:%v, local md5:%v", md5str, bmd5str)
logq.LogPutqueue(l)
status = "md5 error"
updateJobQueue(jobid, status, 0)
return n, nil
}
}
log.Printf("%d bytes downloaded.", n)
if err := MoveFromTmp(tmpdestfilename, destfilename); err != nil {
status = "MoveFromTmp error"
}
dlsize, e := GetFileSize(destfilename)
if e != nil {
l := log.Error(e)
logq.LogPutqueue(l)
}
status = datapool.StoreFile(status, destfilename, dpconn, p.Datapool, p.ItemDesc, p.DestName)
updateJobQueue(jobid, status, dlsize)
tagComment := GetTagComment(p.Repository, p.Dataitem, p.Tag)
InsertTagToDb(true, p, tagComment)
return n, nil
}