1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
package main
import (
"context"
"fmt"
"net/http"
"os"
"log"
"strconv"
"sync"
"github.com/gotk3/gotk3/glib"
"github.com/gotk3/gotk3/gtk"
"github.com/gotk3/gotk3/pango"
)
var (
DEFAULT_PORT, DEFAULT_DIR string = "8080", "."
)
func serve(port, dir string, wg *sync.WaitGroup) *http.Server {
mux := http.NewServeMux()
mux.Handle("/", http.FileServer(http.Dir(dir)))
server := &http.Server{Addr: ":" + port, Handler: mux}
if port == "" { port = DEFAULT_PORT }
go func() {
defer wg.Done()
if err := server.ListenAndServe(); err != http.ErrServerClosed {
log.Fatalf("Error while running the server: %v\n", err)
}
}()
return server
}
func main() {
app, _ := gtk.ApplicationNew("net.mikunonaka.gofileserver", glib.APPLICATION_FLAGS_NONE)
app.Connect("activate", func() { onActivate(app) })
app.Run(os.Args)
}
func onActivate(app *gtk.Application) {
win, _ := gtk.ApplicationWindowNew(app)
win.SetTitle("HTTP File Server")
win.SetDefaultSize(330, 230)
win.SetResizable(false)
win.SetPosition(gtk.WIN_POS_CENTER)
box, _ := gtk.BoxNew(gtk.ORIENTATION_VERTICAL, 0)
dirBox, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
dirLabel, _ := gtk.LabelNew("Directory to serve: ")
dirBox.PackStart(dirLabel, false, false, 5)
browseButton, _ := gtk.FileChooserButtonNew("Browse Directory To Serve", gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER)
dirBox.PackEnd(browseButton, false, false, 5)
box.PackStart(dirBox, false, false, 5)
portBox, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
portLabel, _ := gtk.LabelNew("Port:")
portBox.PackStart(portLabel, false, false, 5)
portInput, _ := gtk.EntryNew()
portInput.SetText(DEFAULT_PORT)
portBox.PackEnd(portInput, false, false, 5)
box.PackStart(portBox, false, false, 5)
buttonBox, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
buttonSwitch, _ := gtk.ButtonNewWithLabel("Start")
buttonBox.PackStart(buttonSwitch, true, true, 0)
box.PackStart(buttonBox, false, false, 5)
statusLabel, _ := gtk.LabelNew("")
statusLabel.SetLineWrap(true)
statusLabel.SetLineWrapMode(pango.WrapMode(gtk.ALIGN_START))
statusLabel.SetJustify(gtk.JUSTIFY_CENTER)
box.PackStart(statusLabel, false, true, 10)
var on = false
var server *http.Server
buttonSwitch.Connect("clicked", func() {
// TODO: validate dir and port
port, _ := portInput.GetText()
dir := browseButton.GetFilename()
if dir == "" { dir = DEFAULT_DIR }
if on {
server.Shutdown(context.TODO())
statusLabel.SetMarkup("<span foreground='#ffcc00'>Server was terminated by user.</span>")
} else {
go func() {
killServerDone := &sync.WaitGroup{}
server = serve(port, dir, killServerDone)
killServerDone.Add(1)
// do this after server starts
on = true
buttonSwitch.SetLabel("Stop")
statusLabel.SetMarkup(fmt.Sprintf("Serving\n%s\nOn <a href='http://localhost:%s'>http://localhost:%s</a>", dir, dir, port))
browseButton.SetCanFocus(false)
portInput.SetEditable(false)
portInput.SetCanFocus(false)
killServerDone.Wait()
// do this after server shuts down
on = false
buttonSwitch.SetLabel("Start")
browseButton.SetCanFocus(true)
portInput.SetEditable(true)
portInput.SetCanFocus(true)
}()
}
})
portInput.Connect("insert-text", func(_ *gtk.Entry, input string) {
if _, err := strconv.Atoi(input); err != nil {
// if input is not numeric, don't insert
portInput.StopEmission("insert-text")
} else {
// stop if port number is invalid / out of range
currentInput, _ := portInput.GetText()
nextInput := currentInput + input
n, _ := strconv.Atoi(nextInput)
if n < 0 || n > 65535 {
portInput.StopEmission("insert-text")
}
}
})
browseButton.Connect("selection-changed", func() {
/* when different directory is selected,
* shut down the server and show warning message */
if on {
server.Shutdown(context.TODO())
statusLabel.SetMarkup("<span foreground='#ffcc00'>Server was terminated because root directory changed.</span>")
}
})
win.Add(box)
win.ShowAll()
}
|
