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client_test.go
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client_test.go
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package ftp4go
import (
"fmt"
"os"
"path/filepath"
"strings"
"testing"
"time"
)
type connPars struct {
ftpAddress string
ftpPort int
username string
password string
homefolder string
debugFtp bool
}
var allpars = []*connPars{
&connPars{ftpAddress: "ftp.drivehq.com", ftpPort: 21, username: "goftptest", password: "g0ftpt3st", homefolder: "/publicFolder", debugFtp: false},
&connPars{ftpAddress: "ftp.fileserve.com", ftpPort: 21, username: "ftp4go", password: "52fe56bc", homefolder: "/", debugFtp: true},
&connPars{ftpAddress: "www.0catch.com", ftpPort: 21, username: "ftp4go.0catch.com", password: "g0ftpt3st", homefolder: "/", debugFtp: true},
}
var pars = allpars[0]
func NewFtpConn(t *testing.T) (ftpClient *FTP, err error) {
var logl int
if pars.debugFtp {
logl = 1
}
ftpClient = NewFTP(logl) // 1 for debugging
ftpClient.SetPassive(true)
// connect
_, err = ftpClient.Connect(pars.ftpAddress, pars.ftpPort, "")
if err != nil {
t.Fatalf("The FTP connection could not be established, error: %v", err.Error())
}
t.Logf("Connecting with username: %s and password %s", pars.username, pars.password)
_, err = ftpClient.Login(pars.username, pars.password, "")
if err != nil {
t.Fatalf("The user could not be logged in, error: %s", err.Error())
}
return
}
type asciiTestSet struct {
fname string
isascii bool
}
func _TestServerAsciiMode(t *testing.T) {
ftpClient, err := NewFtpConn(t)
defer ftpClient.Quit()
if err != nil {
return
}
_, err = ftpClient.Cwd(pars.homefolder) // home
if err != nil {
t.Fatalf("error: ", err)
}
fstochk := []*asciiTestSet{
&asciiTestSet{"test/test.txt", true},
&asciiTestSet{"test/test.txt", false},
}
var getPrefixedName = func(fn string, textmode bool) string {
f := filepath.Base(fn)
prefix := "remote_binary_"
if textmode {
prefix = "remote_ascii_"
}
return prefix + f
}
for _, entry := range fstochk {
r_filename := getPrefixedName(entry.fname, entry.isascii)
fmt.Printf("Uploading file %s\n", r_filename)
if err = ftpClient.UploadFile(r_filename, entry.fname, entry.isascii, nil); err != nil {
t.Fatalf("error: ", err)
}
t.Logf("Uploaded %s file in ASCII mode.\n", r_filename)
defer ftpClient.Delete(r_filename)
}
check := func(remotename string, localpath string, istext bool) {
s1, s2, tempFilePath := checkintegrityWithPaths(ftpClient, remotename, localpath, istext, false, t)
defer os.Remove(tempFilePath)
t.Logf("\n---Check results\nMode is text: %v.\nDownloaded %s file to local file%s.\n", istext, remotename, tempFilePath)
if s1 != s2 {
t.Logf("The size of real file %s and the downloaded copy %s differ, size local: %d, size remote: %d\n", localpath, remotename, s1, s2)
} else {
t.Logf("The size of real file %s and the downloaded copy %s are the same, size: %d\n", localpath, remotename, s1)
}
if istext && s1 != s2 {
t.Fatalf("The size of the file uploaded in ASCII mode should be the same as the downloaded in ASCII mode.")
}
}
for _, entry := range fstochk {
fn := getPrefixedName(entry.fname, entry.isascii)
check(fn, entry.fname, true)
check(fn, entry.fname, false)
}
}
func TestFeatures(t *testing.T) {
ftpClient, err := NewFtpConn(t)
defer ftpClient.Quit()
if err != nil {
return
}
homefolder := pars.homefolder
fmt.Println("The home folder is:", homefolder)
fts, err := ftpClient.Feat()
if err != nil {
t.Fatalf("error: ", err)
}
fmt.Printf("Supported feats\n")
for _, ft := range fts {
fmt.Printf("%s\n", ft)
}
fmt.Printf("Use UTF8\n")
_, err = ftpClient.Opts("UTF8 ON")
if err != nil {
t.Logf("UTF8 ON error: %v", err)
}
var cwd string
_, err = ftpClient.Cwd(homefolder) // home
if err != nil {
t.Fatalf("error: %v", err)
}
cwd, err = ftpClient.Pwd()
if err != nil {
t.Fatalf("error: ", err)
}
t.Log("The current folder is", cwd)
t.Log("Testings Mlsd")
//ls, err := ftpClient.Mlsd(".", []string{"type", "size"})
ls, err := ftpClient.Mlsd("", nil)
if err != nil {
t.Logf("The ftp command MLSD does not work or is not supported, error: %s", err.Error())
} else {
for _, l := range ls {
//t.Logf("\nMlsd entry: %s, facts: %v", l.Name, l.Facts)
t.Logf("\nMlsd entry and facts: %v", l)
}
}
t.Logf("Testing upload\n")
test_f := "test"
maxSimultaneousConns := 1
t.Log("Cleaning up before testing")
var cleanup = func() error { return cleanupFolderTree(ftpClient, test_f, homefolder, t) }
cleanup()
defer cleanup() // at the end again
var n int
n, err = ftpClient.UploadDirTree(test_f, homefolder, maxSimultaneousConns, nil, nil)
if err != nil {
t.Fatalf("Error uploading folder tree %s, error: %v\n", test_f, err)
}
t.Logf("Uploaded %d files.\n", n)
t.Log("Checking download integrity by downloading the uploaded files and comparing the sizes")
check := func(fi string, istext bool) {
s1, s2 := checkintegrity(ftpClient, fi, istext, t)
if s1 != s2 {
t.Errorf("The size of real file %s and the downloaded copy differ, size local: %d, size remote: %d", fi, s1, s2)
}
}
ftpClient.Cwd(homefolder)
fstochk := map[string]bool{"test/test.txt": true, "test/test.jpg": false}
for s, v := range fstochk {
check(s, v)
}
}
func _TestRecursion(t *testing.T) {
ftpClient, err := NewFtpConn(t)
defer ftpClient.Quit()
if err != nil {
return
}
test_f := "test"
noiterations := 1
maxSimultaneousConns := 1
homefolder := pars.homefolder
t.Log("Cleaning up before testing")
var cleanup = func() error { return cleanupFolderTree(ftpClient, test_f, homefolder, t) }
var check = func(f string) error { return checkFolder(ftpClient, f, homefolder, t) }
defer cleanup() // at the end again
stats, fileUploaded, _ := startStats()
var collector = func(info *CallbackInfo) {
if info.Eof {
stats <- info // pipe in for stats
}
} // do not block the call
var n int
for i := 0; i < noiterations; i++ {
t.Logf("\n -- Uploading folder tree: %s, iteration %d\n", filepath.Base(test_f), i+1)
cleanup()
t.Logf("Sleeping a second\n")
time.Sleep(1e9)
n, err = ftpClient.UploadDirTree(test_f, homefolder, maxSimultaneousConns, nil, collector)
if err != nil {
t.Fatalf("Error uploading folder tree %s, error:\n", test_f, err)
}
t.Logf("Uploaded %d files.\n", n)
// wait for all stats to finish
for k := 0; k < n; k++ {
<-fileUploaded
}
check("test")
check("test/subdir")
}
}
// FTP routine utils
func checkFolder(ftpClient *FTP, f string, homefolder string, t *testing.T) (err error) {
_, err = ftpClient.Cwd(homefolder)
if err != nil {
t.Fatalf("Error in Cwd for folder %s:", homefolder, err.Error())
}
defer ftpClient.Cwd(homefolder) //back to home at the end
t.Logf("Checking subfolder %s", f)
dirs := filepath.SplitList(f)
for _, d := range dirs {
_, err = ftpClient.Cwd(d)
if err != nil {
t.Fatalf("The folder %s was not created.", f)
}
ftpClient.Cwd("..")
}
var filelist []string
if filelist, err = ftpClient.Nlst(); err != nil {
t.Fatalf("No files in folder %s on the ftp server", f)
}
dir, _ := os.Open(f)
files, _ := dir.Readdirnames(-1)
fno := len(files)
t.Logf("No of files in local folder %s is: %d", f, fno)
for _, locF := range files {
t.Logf("Checking local file or folder %s", locF)
fi, err := os.Stat(locF)
if err == nil && !fi.IsDir() {
var found bool
for _, remF := range filelist {
if strings.Contains(strings.ToLower(remF), strings.ToLower(locF)) {
found = true
break
}
}
if !found {
t.Fatalf("The local file %s could not be found at the server", locF)
}
}
}
return
}
func cleanupFolderTree(ftpClient *FTP, test_f string, homefolder string, t *testing.T) (err error) {
_, err = ftpClient.Cwd(homefolder)
if err != nil {
t.Fatalf("Error in Cwd for folder %s:", homefolder, err.Error())
}
defer ftpClient.Cwd(homefolder) //back to home at the end
t.Logf("Removing directory tree %s.", test_f)
if err := ftpClient.RemoveRemoteDirTree(test_f); err != nil {
if err != DIRECTORY_NON_EXISTENT {
t.Fatalf("Error: %v", err)
}
}
return
}
func checkintegrity(ftpClient *FTP, remotename string, istext bool, t *testing.T) (sizeOriginal int64, sizeOnServer int64) {
sizeOriginal, sizeOnServer, _ = checkintegrityWithPaths(ftpClient, remotename, remotename, istext, true, t)
return
}
func checkintegrityWithPaths(ftpClient *FTP, remotename string, localpath string, istext bool, deleteTemporaryFile bool, t *testing.T) (sizeOriginal int64, sizeOnServer int64, tempFilePath string) {
t.Logf("Checking download integrity of remote file %s\n", remotename)
tkns := strings.Split(localpath, "/")
tempFilePath = "ftptest_" + tkns[len(tkns)-1]
fmt.Printf("Downloading file %s to temporary file %s\n", remotename, tempFilePath)
err := ftpClient.DownloadFile(remotename, tempFilePath, istext)
if err != nil {
t.Fatalf("Error downloading file %s, error: %s", remotename, err)
}
// delete if required
if deleteTemporaryFile {
defer os.Remove(tempFilePath)
}
var ofi, oficp *os.File
var e error
if ofi, e = os.Open(localpath); e != nil {
t.Fatalf("Error opening file %s, error: %s", localpath, e)
}
defer ofi.Close()
if oficp, e = os.Open(tempFilePath); e != nil {
t.Fatalf("Error opening file %s, error: %s", oficp, e)
}
defer oficp.Close()
s1, _ := ofi.Stat()
s2, _ := oficp.Stat()
return s1.Size(), s2.Size(), tempFilePath
}
func startStats() (stats chan *CallbackInfo, fileUploaded chan bool, quit chan bool) {
stats = make(chan *CallbackInfo, 100)
quit = make(chan bool)
fileUploaded = make(chan bool, 100)
files := make(map[string][2]int64, 100)
go func() {
for {
select {
case st := <-stats:
// do not wait here, the buffered request channel is the barrier
go func() {
pair, ok := files[st.Resourcename]
var pos, size int64
if !ok {
fi, _ := os.Stat(st.Filename)
files[st.Resourcename] = [2]int64{fi.Size(), pos}
size = fi.Size()
} else {
pos = pair[1] // position correctly for writing
size = pair[0]
}
mo := int((float32(st.BytesTransmitted)/float32(size))*100) / 10
msg := fmt.Sprintf("File: %s - received: %d percent\n", st.Resourcename, mo*10)
if st.Eof {
fmt.Println("Uploaded (reached EOF) file:", st.Resourcename)
fileUploaded <- true // done here
} else {
fmt.Print(msg)
}
/*
if size <= st.BytesTransmitted {
fileUploaded <- true // done here
}
*/
}()
case <-quit:
fmt.Println("Stopping workers")
return // get out
}
}
}()
return
}