func generate(r *byteio.StickyReader, w *byteio.StickyWriter, of *os.File) error {
memoryLimit := r.ReadUint64()
size := r.ReadInt64()
gPath := data.ReadString(r)
levelName := data.ReadString(r)
mapPath := data.ReadString(r)
if r.Err != nil {
return r.Err
}
o, err := ora.Open(of, size)
if err != nil {
return err
}
f, err := os.Open(path.Join(gPath, "data.gen"))
if err != nil {
return err
}
g, err := LoadGenerator(f)
if e := f.Close(); e != nil {
return e
}
if err != nil {
return err
}
b := o.Bounds()
w.WriteUint8(2)
w.WriteInt32(int32(b.Max.X) >> 4)
w.WriteInt32(int32(b.Max.Y) >> 4)
c := make(chan paint, 1024)
m := make(chan string, 4)
e := make(chan struct{}, 0)
go func() {
defer close(e)
defer close(m)
defer close(c)
for {
select {
case message := <-m:
w.WriteUint8(3)
data.WriteString(w, message)
case p := <-c:
w.WriteUint8(4)
w.WriteInt32(p.X)
w.WriteInt32(p.Y)
r, g, b, a := p.RGBA()
w.WriteUint8(uint8(r >> 8))
w.WriteUint8(uint8(g >> 8))
w.WriteUint8(uint8(b >> 8))
w.WriteUint8(uint8(a >> 8))
case <-e:
return
}
}
}()
err = g.Generate(levelName, mapPath, o, c, m, memoryLimit)
e <- struct{}{}
<-e
return err
}
func transferFile(typeName, method string, typeID uint8, o *overlay.Overlay) dom.Node {
name := xform.InputText("name", "")
url := xform.InputRadio("url", "switch", true)
upload := xform.InputRadio("upload", "switch", false)
fileI := xform.InputUpload("")
urlI := xform.InputURL("", "")
s := xform.InputSubmit(method)
name.Required = true
typeFunc := func(dom.Event) {
if url.Checked {
urlI.Style().RemoveProperty("display")
fileI.Style().SetProperty("display", "none", "")
urlI.Required = true
fileI.Required = false
fileI.SetID("")
urlI.SetID("file")
} else {
fileI.Style().RemoveProperty("display")
urlI.Style().SetProperty("display", "none", "")
fileI.Required = true
urlI.Required = false
urlI.SetID("")
fileI.SetID("file")
}
}
typeFunc(nil)
url.AddEventListener("change", false, typeFunc)
upload.AddEventListener("change", false, typeFunc)
f := xjs.AppendChildren(xdom.Form(), xjs.AppendChildren(xdom.Fieldset(),
xjs.SetInnerText(xdom.Legend(), method+" "+typeName),
xform.Label(typeName+" Name", "name"),
name,
xdom.Br(),
xform.Label("URL", "url"),
url,
xdom.Br(),
xform.Label("Upload", "upload"),
upload,
xdom.Br(),
xform.Label("File", "file"),
fileI,
urlI,
xdom.Br(),
s,
))
s.AddEventListener("click", false, func(e dom.Event) {
if name.Value == "" {
return
}
if url.Checked {
if urlI.Value == "" {
return
}
} else if len(fileI.Files()) != 1 {
return
}
s.Disabled = true
name.Disabled = true
url.Disabled = true
upload.Disabled = true
fileI.Disabled = true
urlI.Disabled = true
e.PreventDefault()
go func() {
d := xdom.Div()
uo := overlay.New(d)
uo.OnClose(func() {
o.Close()
})
xjs.Body().AppendChild(uo)
status := xdom.Div()
d.AppendChild(xjs.SetInnerText(status, "Transferring..."))
conn, err := websocket.Dial("ws://" + js.Global.Get("location").Get("host").String() + "/transfer")
if err != nil {
xjs.SetInnerText(status, err.Error())
return
}
defer conn.Close()
w := byteio.StickyWriter{Writer: byteio.LittleEndianWriter{Writer: conn}}
r := byteio.StickyReader{Reader: byteio.LittleEndianReader{Reader: conn}}
pb := progress.New(color.RGBA{255, 0, 0, 0}, color.RGBA{0, 0, 255, 0}, 400, 50)
d.AppendChild(pb)
if url.Checked {
w.WriteUint8(typeID << 1)
data.WriteString(&w, urlI.Value)
length := int(r.ReadInt32())
total := 0
for total < length {
switch v := r.ReadUint8(); v {
case 1:
i := int(r.ReadInt32())
total += i
pb.Percent(100 * total / length)
default:
xjs.SetInnerText(status, ReadError(&r).Error())
return
}
}
} else {
f := files.NewFileReader(files.NewFile(fileI.Files()[0]))
l := f.Len()
if l == 0 {
xjs.SetInnerText(status, "Zero-length file")
return
}
w.WriteUint8(typeID<<1 | 1)
w.WriteInt32(int32(l))
io.Copy(&w, pb.Reader(f, l))
}
d.RemoveChild(pb)
xjs.SetInnerText(status, "Checking File")
data.WriteString(&w, name.Value)
var ctx *dom.CanvasRenderingContext2D
for {
switch v := r.ReadUint8(); v {
case 0:
if r.Err != nil {
xjs.SetInnerText(status, r.Err.Error())
} else {
xjs.SetInnerText(status, ReadError(&r).Error())
}
return
case 1:
files := make([]xform.Option, r.ReadInt16())
for i := range files {
files[i] = xform.Option{
Value: strconv.Itoa(i),
Label: data.ReadString(&r),
}
}
j := xform.SelectBox("files", files...)
sel := xjs.SetInnerText(xdom.Button(), "Select")
fo := overlay.New(xjs.AppendChildren(xdom.Div(), xjs.AppendChildren(xdom.Fieldset(),
xjs.SetInnerText(xdom.Legend(), "Please select the "+typeName+" file"),
xform.Label("File", "files"),
j,
xdom.Br(),
sel,
)))
c := make(chan int16, 0)
done := false
fo.OnClose(func() {
if !done {
done = true
c <- -1
}
})
sel.AddEventListener("click", false, func(dom.Event) {
if !done {
done = true
v, err := strconv.Atoi(j.Value)
if err != nil {
v = -1
}
c <- int16(v)
fo.Close()
}
})
xjs.Body().AppendChild(fo)
w.WriteInt16(<-c)
close(c)
case 2:
w := r.ReadInt32()
h := r.ReadInt32()
canvas := xdom.Canvas()
canvas.Width = int(w) * 8
canvas.Height = int(h) * 8
d.AppendChild(canvas)
ctx = canvas.GetContext2d()
ctx.Scale(8, 8)
case 3:
xjs.SetInnerText(status, data.ReadString(&r))
case 4:
x := r.ReadInt32()
y := r.ReadInt32()
red := r.ReadUint8()
green := r.ReadUint8()
blue := r.ReadUint8()
alpha := r.ReadUint8()
ctx.FillStyle = "rgba(" + strconv.Itoa(int(red)) + ", " + strconv.Itoa(int(green)) + ", " + strconv.Itoa(int(blue)) + ", " + strconv.FormatFloat(float64(alpha)/255, 'f', -1, 32) + ")"
ctx.FillRect(int(x), int(y), 1, 1)
case 255:
uo.Close()
return
}
}
}()
})
return f
}
func (c Console) handle(r *byteio.StickyReader, w *byteio.StickyWriter) error {
id := int(r.ReadInt32())
if r.Err != nil {
return r.Err
}
s := c.c.c.Server(id)
if s == nil {
return ErrUnknownServer
}
s.RLock() //Needed? Path never gets changed!
p := s.Path
s.RUnlock()
var (
f *os.File
err error
logPath string
)
for _, lp := range logPaths {
logPath = path.Join(p, lp)
f, err = os.Open(logPath)
if err == nil {
break
}
}
if f == nil {
return errors.New("unable to open log file")
}
defer func() {
f.Close()
}()
fsw, err := fsnotify.NewWatcher()
if err != nil {
return err
}
logDir := path.Dir(logPath)
fsw.Add(logDir)
defer fsw.Remove(logDir)
pw := partWriter{w}
io.Copy(pw, f)
if w.Err != nil {
return w.Err
}
t := time.NewTimer(time.Second * 10)
for {
select {
case ev := <-fsw.Events:
switch ev.Op {
case fsnotify.Create:
if ev.Name == logPath {
f, err = os.Open(logPath)
if err != nil {
return err
}
}
case fsnotify.Write:
if ev.Name == logPath {
io.Copy(pw, f)
if w.Err != nil {
return w.Err
}
}
case fsnotify.Remove:
if ev.Name == logPath {
f.Close()
}
}
case err = <-fsw.Errors:
case <-t.C:
w.WriteUint8(2) //ping
if w.Err != nil {
return w.Err
}
}
t.Reset(time.Second * 10)
}
}
func (t Transfer) server(name string, r *byteio.StickyReader, w *byteio.StickyWriter, f *os.File, size int64) error {
zr, err := zip.NewReader(f, size)
if err != nil {
return err
}
jars := make([]*zip.File, 0, 16)
for _, file := range zr.File {
if file.Name == "server.jar" {
jars = []*zip.File{file}
break
}
if strings.HasSuffix(file.Name, ".jar") {
jars = append(jars, file)
}
}
s := t.c.NewServer()
done := false
defer func() {
if !done {
t.c.RemoveServer(s.ID)
}
go t.c.Save()
}()
if s == nil {
return errors.New("error creating server")
}
s.Lock()
s.Name = name
d := s.Path
s.Unlock()
if len(jars) == 0 {
err = moveFile(f.Name(), path.Join(d, "server.jar"))
} else {
if len(jars) > 1 {
w.WriteUint8(1)
w.WriteInt16(int16(len(jars)))
for _, jar := range jars {
data.WriteString(w, jar.Name)
}
if w.Err != nil {
return w.Err
}
p := r.ReadInt16()
if r.Err != nil {
return r.Err
}
if int(p) >= len(jars) || p < 0 {
return errors.New("error selecting server jar")
}
jars[0] = jars[p]
}
if err == nil {
err = unzip(zr, d)
if err == nil {
err = os.Rename(path.Join(d, jars[0].Name), path.Join(d, "server.jar"))
}
}
}
if err != nil {
return err
}
serverProperties := DefaultServerSettings()
ps, err := os.OpenFile(path.Join(d, "properties.server"), os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0644)
defer ps.Close()
if err != nil {
if !os.IsExist(err) {
return err
}
} else {
err = serverProperties.WriteTo(ps)
if err != nil {
return err
}
}
done = true
return nil
}
func serverConsole(s data.Server) func(dom.Element) {
return func(c dom.Element) {
log := xform.TextArea("log", "")
log.ReadOnly = true
command := xform.InputText("command", "")
command.Required = true
send := xform.InputSubmit("Send")
c.AppendChild(xjs.AppendChildren(xdom.Form(), xjs.AppendChildren(xdom.Fieldset(),
xjs.SetInnerText(xdom.Legend(), "Console"),
xform.Label("Log", ""), log, xdom.Br(),
xform.Label("Command", "command"), command, send,
)))
if s.State == data.StateStopped {
send.Disabled = true
command.Disabled = true
} else {
send.AddEventListener("click", false, func(e dom.Event) {
if command.Value == "" {
return
}
e.PreventDefault()
send.Disabled = true
cmd := command.Value
log.Value += "\n>" + cmd + "\n"
log.Set("scrollTop", log.Get("scrollHeight"))
command.Value = ""
go func() {
err := RPC.WriteCommand(s.ID, cmd)
if err != nil {
xjs.Alert("Error sending command: %s", err)
return
}
send.Disabled = false
}()
})
}
go func() {
conn, err := websocket.Dial("ws://" + js.Global.Get("location").Get("host").String() + "/console")
if err != nil {
xjs.Alert("Failed to connect to console: %s", err)
return
}
defer conn.Close()
w := byteio.StickyWriter{Writer: byteio.LittleEndianWriter{Writer: conn}}
r := byteio.StickyReader{Reader: byteio.LittleEndianReader{Reader: conn}}
updateStop := make(chan struct{})
registerUpdateStopper(c, updateStop)
done := false
go func() {
<-updateStop
done = true
conn.Close()
}()
w.WriteInt32(int32(s.ID))
for {
state := r.ReadUint8()
switch state {
case 0:
if !done {
err := ReadError(&r)
if r.Err != nil {
err = r.Err
}
log.Value += "\n\nError reading from console: " + err.Error()
log.Set("scrollTop", log.Get("scrollHeight"))
}
return
case 1:
log.Value += data.ReadString(&r)
log.Set("scrollTop", log.Get("scrollHeight"))
}
}
}()
}
}
func (t Transfer) generator(name string, r *byteio.StickyReader, w *byteio.StickyWriter, f *os.File, size int64) error {
g := t.c.Generators.New(t.c.Settings().DirGenerators)
if g == nil {
return errors.New("error creating generator")
}
g.Name = name
done := false
defer func() {
if !done {
t.c.RemoveGenerator(g.ID)
}
go t.c.Save()
}()
zr, err := zip.NewReader(f, size)
if err != nil {
f.Seek(0, 0)
e := json.NewDecoder(f).Decode(new(data.GeneratorData))
if e != nil {
return err
}
err = moveFile(f.Name(), path.Join(g.Path, "data.gen"))
if err != nil {
return err
}
done = true
return nil
}
gens := make([]*zip.File, 0, 16)
for _, file := range zr.File {
if file.Name == "data.gen" {
gens = []*zip.File{file}
break
}
if strings.HasSuffix(file.Name, ".gen") || strings.HasSuffix(file.Name, ".json") {
gens = append(gens, file)
}
}
if len(gens) == 0 {
return errors.New("cannot find generator data in zip")
}
if len(gens) > 1 {
w.WriteUint8(1)
w.WriteInt16(int16(len(gens)))
for _, gen := range gens {
data.WriteString(w, gen.Name)
}
if w.Err != nil {
return w.Err
}
p := r.ReadInt16()
if r.Err != nil {
return r.Err
}
if int(p) >= len(gens) || p < 0 {
return errors.New("error selecting generator data")
}
gens[0] = gens[p]
}
gd, err := gens[0].Open()
if err != nil {
return err
}
err = json.NewDecoder(gd).Decode(new(data.GeneratorData))
if err != nil {
return err
}
err = unzip(zr, g.Path)
if err != nil {
return err
}
err = os.Rename(path.Join(g.Path, gens[0].Name), path.Join(g.Path, "data.gen"))
if err != nil {
return err
}
done = true
return nil
}
func (t Transfer) generate(name string, r *byteio.StickyReader, w *byteio.StickyWriter, f *os.File, size int64) error {
gp.Add(1)
defer gp.Done()
mp := t.c.NewMap()
if mp == nil {
return errors.New("failed to create map")
}
done := false
defer func() {
if !done {
t.c.RemoveMap(mp.ID)
}
t.c.Save()
}()
mp.Lock()
mp.Name = name
mapPath := mp.Path
mp.Server = -2
mp.Unlock()
t.c.Generators.mu.RLock()
gs := make([]data.Generator, len(t.c.Generators.List))
for n, g := range t.c.Generators.List {
gs[n] = *g
}
t.c.Generators.mu.RUnlock()
var g data.Generator
if len(gs) == 0 {
return errors.New("no generators installed")
} else if len(gs) == 1 {
g = gs[0]
} else {
w.WriteUint8(1)
w.WriteInt16(int16(len(gs)))
for _, tg := range gs {
data.WriteString(w, tg.Name)
}
if w.Err != nil {
return w.Err
}
gID := r.ReadInt16()
if r.Err != nil {
return r.Err
}
if gID < 0 || int(gID) >= len(gs) {
return errors.New("unknown generator")
}
g = gs[gID]
}
ms := DefaultMapSettings()
ms["level-type"] = minecraft.FlatGenerator
ms["generator-settings"] = "0"
ms["motd"] = name
j, err := os.Open(path.Join(g.Path, "data.gen"))
if err != nil {
return err
}
var gj data.GeneratorData
err = json.NewDecoder(j).Decode(&gj)
j.Close()
if err != nil {
return err
}
for k, v := range gj.Options {
ms[k] = v
}
pf, err := os.Create(path.Join(mapPath, "properties.map"))
if err != nil {
return err
}
if err = ms.WriteTo(pf); err != nil {
return err
}
pf.Close()
cmd := exec.Command(t.c.Settings().GeneratorExecutable)
cmd.ExtraFiles = append(cmd.ExtraFiles, f)
cmd.Dir, err = os.Getwd()
if err != nil {
return err
}
cmd.Stdout = w
pw, err := cmd.StdinPipe()
if err != nil {
return err
}
err = gp.Start(cmd)
if err != nil {
return err
}
defer gp.Remove(cmd)
pww := byteio.StickyWriter{Writer: &byteio.LittleEndianWriter{pw}}
pww.WriteUint64(t.c.Settings().GeneratorMaxMem)
pww.WriteInt64(size)
data.WriteString(&pww, g.Path)
data.WriteString(&pww, name)
data.WriteString(&pww, mapPath)
if pww.Err != nil {
return pww.Err
}
err = cmd.Wait()
if err != nil {
return err
}
done = true
mp.Lock()
mp.Server = -1
mp.Unlock()
return nil
}
func ReadString(r *byteio.StickyReader) string {
length := r.ReadUint16()
str := make([]byte, int(length))
io.ReadFull(r, str)
return string(str)
}