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@ -20,6 +20,7 @@ package main
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*/
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import "C"
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import (
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"bufio"
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"fmt"
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"io/ioutil"
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"log"
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@ -28,27 +29,72 @@ import (
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func adminscreen() {
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log.SetOutput(ioutil.Discard)
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stdout := os.Stdout
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stdout := bufio.NewWriter(os.Stdout)
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esc := "\x1b"
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smcup := esc + "[?1049h"
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rmcup := esc + "[?1049l"
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messages := []*struct {
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name string
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label string
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text string
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}{
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{
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name: "servermsg",
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label: "server",
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text: string(serverMsg),
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},
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{
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name: "aboutmsg",
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label: "about",
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text: string(aboutMsg),
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},
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{
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name: "loginmsg",
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label: "login",
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text: string(loginMsg),
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},
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}
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cursel := 0
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hidecursor := func() {
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stdout.WriteString(esc + "[?25l")
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}
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showcursor := func() {
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stdout.WriteString(esc + "[?12;25h")
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}
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movecursor := func(x, y int) {
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stdout.WriteString(fmt.Sprintf(esc+"[%d;%dH", x, y))
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stdout.WriteString(fmt.Sprintf(esc+"[%d;%dH", y, x))
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}
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moveleft := func() {
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stdout.WriteString(esc + "[1D")
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}
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clearscreen := func() {
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stdout.WriteString(esc + "[2J")
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}
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clearline := func() {
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stdout.WriteString(esc + "[2K")
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}
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colorfn := func(code int) func(string) string {
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return func(s string) string {
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return fmt.Sprintf(esc+"[%dm"+"%s"+esc+"[0m", code, s)
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}
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}
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reverse := colorfn(7)
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magenta := colorfn(35)
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readchar := func() byte {
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var buf [1]byte
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os.Stdin.Read(buf[:])
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c := buf[0]
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return c
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}
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savedtio := new(C.struct_termios)
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C.tcgetattr(1, savedtio)
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restore := func() {
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stdout.WriteString(rmcup)
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showcursor()
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stdout.Flush()
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C.tcsetattr(1, C.TCSAFLUSH, savedtio)
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}
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defer restore()
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@ -63,19 +109,98 @@ func adminscreen() {
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stdout.WriteString(smcup)
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clearscreen()
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movecursor(1, 1)
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stdout.Flush()
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}
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msglineno := func(idx int) int {
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return 4 + idx*2
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}
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drawmessage := func(idx int) {
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line := msglineno(idx)
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movecursor(4, line)
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label := messages[idx].label
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if idx == cursel {
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label = reverse(label)
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}
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stdout.WriteString(fmt.Sprintf("%s %s", label, messages[idx].text))
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}
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drawscreen := func() {
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clearscreen()
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movecursor(4, msglineno(-1))
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stdout.WriteString(magenta(serverName + " admin panel"))
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for i := range messages {
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drawmessage(i)
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}
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movecursor(4, msglineno(len(messages)))
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stdout.WriteString(magenta("j/k to move - q to quit - enter to edit"))
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stdout.Flush()
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}
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selectnext := func() {
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if cursel < len(messages)-1 {
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cursel++
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}
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drawscreen()
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}
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selectprev := func() {
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if cursel > 0 {
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cursel--
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}
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drawscreen()
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}
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editsel := func() {
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movecursor(4, msglineno(cursel))
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clearline()
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m := messages[cursel]
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stdout.WriteString(reverse(magenta(m.label)))
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text := m.text
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stdout.WriteString(" ")
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stdout.WriteString(text)
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showcursor()
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stdout.Flush()
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loop:
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for {
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c := readchar()
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switch c {
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case '\n':
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break loop
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case 127:
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if len(text) > 0 {
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moveleft()
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stdout.WriteString(" ")
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moveleft()
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text = text[:len(text)-1]
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}
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default:
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text = text + string(c)
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stdout.WriteString(string(c))
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}
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stdout.Flush()
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}
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m.text = text
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updateconfig(m.name, m.text)
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hidecursor()
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drawscreen()
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}
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init()
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drawscreen()
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for {
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var buf [1]byte
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os.Stdin.Read(buf[:])
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c := buf[0]
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c := readchar()
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switch c {
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case 'q':
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return
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case 'j':
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selectnext()
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case 'k':
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selectprev()
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case '\n':
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editsel()
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default:
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os.Stdout.Write(buf[:])
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}
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}
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}
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