kolibrios/programs/network/ircc/serverparser.inc

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                 ;;
;; Copyright (C) KolibriOS team 2004-2014. All rights reserved.    ;;
;; Distributed under terms of the GNU General Public License       ;;
;;                                                                 ;;
;;   Written by hidnplayr@kolibrios.org                            ;;
;;                                                                 ;;
;;         GNU GENERAL PUBLIC LICENSE                              ;;
;;          Version 2, June 1991                                   ;;
;;                                                                 ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;


server_parser:

        mov     esi, servercommand

        cmp     byte [esi], ':'
        jne     .parse

  .spaceloop:
        lodsb
        test    al, al
        jz      .fail
        cmp     al, ' '
        jne     .spaceloop

  .parse:
        mov     eax, [esi]
        or      eax, 0x20202020
        mov     edi, server_commands
        mov     ecx, server_commands.number

  .loop:
        scasd
        je      .got_cmd
        add     edi, 4
        dec     ecx
        jnz     .loop

  .fail:
        ret

  .got_cmd:
        jmp     dword[edi]


server_commands:

        dd      '322 ', cmd_322         ; RPL_LIST
        dd      '323 ', cmd_323         ; RPL_LISTEND
        dd      '324 ', cmd_324 ;;;;
        dd      '328 ', cmd_328         ; RPL_CHANNEL_URL
        dd      '329 ', cmd_329
        dd      '332 ', cmd_topic
        dd      '333 ', cmd_333         ; nickname and time of topic
        dd      '353 ', cmd_353         ; name reply
        dd      '366 ', cmd_366         ; end of names list
        dd      '372 ', cmd_372         ; motd
        dd      '375 ', cmd_375         ; start of motd
        dd      '376 ', cmd_376         ; end of motd
        dd      '421 ', cmd_421         ; unknown command
        dd      '433 ', cmd_433         ; nickname already in use
        dd      'join', cmd_join
        dd      'kick', cmd_kick
        dd      'mode', cmd_mode
        dd      'nick', cmd_nick
        dd      'part', cmd_part
        dd      'ping', cmd_ping
        dd      'priv', cmd_privmsg
        dd      'quit', cmd_quit
        dd      'noti', cmd_notice

        .number = ($ - server_commands) / 8


align 4
compare_to_nick:

        push    esi
        mov     ecx, MAX_NICK_LEN
        mov     esi, user_nick
  .loop:
        lodsb
        cmp     al, ' '
        jbe     .done
        test    al, al
        jz      .done
        cmp     al, 'a'
        jb      .ok
        cmp     al, 'z'
        ja      .ok
        sub     al, 0x20
  .ok:

        mov     bl, byte[edi]
        cmp     bl, 'a'
        jb      .ok2
        cmp     bl, 'z'
        ja      .ok2
        sub     bl, 0x20
  .ok2:
        cmp     bl, al
        jne     .not_equal
        inc     edi
        dec     ecx
        jnz     .loop

  .done:
        xor     eax, eax
        pop     esi
        ret

  .not_equal:
        or      eax, -1
        pop     esi
        ret



align 4
skip_parameter:

; First: skip the parameter
  .part1:
        lodsb
        cmp     al, ' '
        je      .part2
        cmp     al, ':'
        jne     .part1

; Now, skip all trailing spaces and semicolons
  .part2:
        lodsb
        cmp     al, ' '
        je      .part2
        cmp     al, ':'
        je      .part2
        dec     esi

        ret



cmd_324:
cmd_329:
cmd_328:
cmd_421:
cmd_372:
cmd_375:
cmd_376:
cmd_433:
        add     esi, 4
        jmp     cmd_notice.loop

cmd_notice:

        cmp     byte[servercommand], ':'
        jne     .gogogo

        mov     byte [esi-1], 0
        if TIMESTAMP
        call    print_timestamp
        end if

        push    esi
        mov     esi, str_1
        call    print_text2
        mov     eax, servercommand+1
        mov     dl, '!'
        call    print_text
        mov     esi, str_2
        call    print_text2
        pop     esi

  .gogogo:
        add     esi, 6

  .loop:
        inc     esi
        cmp     byte [esi], 0
        je      .fail
        cmp     byte [esi], ' '
        jne     .loop

  .loop2:
        inc     esi
        cmp     byte [esi], 0
        je      .fail
        cmp     byte [esi], ' '
        je      .loop2
        cmp     byte [esi], ':'
        je      .loop2

  .fail:
        call    print_text2
        mov     esi, str_newline
        call    print_text2

        ret



cmd_ping:

; Just change PING to PONG
        mov     dword[esi], 'PONG'

; Find the end of the command
        lea     edi, [esi + 5]
        xor     al, al
        repne   scasb

; Now send it back
        mov     edx, esi
        mov     esi, edi
        mov     word [esi], 0x0d0a
        inc     esi
        inc     esi
        sub     esi, edx
        mcall   send, [socketnum], , , 0

        ret



cmd_privmsg:

        mov     eax, dword[esi+4]
        or      eax, 0x20202020
        cmp     eax, 'msg '
        jne     .fail
        add     esi, 8          ; skip 'PRIVMSG '

        mov     edi, esi
        call    compare_to_nick
        jne     .channel

; private chat message
        push    esi
        mov     esi, servercommand+1
        call    window_open
        pop     esi
        call    skip_parameter  ; our own nickname

        cmp     byte[esi], 1    ; Client to Client protocol?
        je      cmd_ctcp

        jmp     .print

  .channel:
        call    window_open

  .print:
; nope, just plain old privmsg, print it using '<nick> message' format
        if TIMESTAMP
        call    print_timestamp
        end if

        push    esi
        mov     bl, '<'
        call    print_character

        mov     eax, servercommand+1
        mov     dl, '!'
        call    print_text

        mov     bl, '>'
        call    print_character

        mov     bl, ' '
        call    print_character

        pop     esi
        call    print_text2

        mov     bl, 10
        call    print_character

  .fail:
        ret




cmd_ctcp:

        inc     esi
        mov     eax, dword[esi]
        or      eax, 0x20202020

        cmp     eax, 'vers'
        je      .version
        cmp     eax, 'time'
        je      .time
        cmp     eax, 'ping'
        je      .ping
        cmp     eax, 'acti'
        je      .action
        cmp     eax, 'dcc '    ; TODO
        je      cmd_dcc

; Unknown CTCP command: TODO: just print to window??

  .fail:

        ret

  .time:
        mov     byte[esi+4], ' '
        lea     edi, [esi+5]

        ; TODO: add system date (fn 29) in human readable format

        mcall   3                       ; get system time

        mov     ecx, 3
  .timeloop:
        mov     bl, al
        shr     al, 4
        add     al, '0'
        stosb

        mov     al, bl
        and     al, 0x0f
        add     al, '0'
        stosb

        dec     ecx
        jz      .timedone

        mov     al, ':'
        stosb
        shr     eax, 8
        jmp     .timeloop

  .timedone:
        xor     al, al
        stosb
        call    ctcp_reply

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, ctcp_header
        call    print_text2

        mov     esi, servercommand+1
        call    print_text2

        mov     esi, ctcp_time
        call    print_text2

        ret

  .version:
        mov     esi, str_version
        call    ctcp_reply

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, ctcp_header
        call    print_text2

        mov     esi, servercommand+1
        call    print_text2

        mov     esi, ctcp_version
        call    print_text2

        ret

  .ping:
        call    ctcp_reply

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, ctcp_header
        call    print_text2

        mov     esi, servercommand+1
        call    print_text2

        mov     esi, ctcp_ping
        call    print_text2

        ret

  .action:
        add     esi, 7
        push    esi

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, action_header
        call    print_text2

        mov     eax, servercommand+1    ; print nickname
        mov     dl, '!'
        call    print_text

        mov     bl, ' '
        call    print_character

        pop     esi
        call    print_text2             ; print message

        mov     bl, 10
        call    print_character

        ret


cmd_dcc:
        add     esi, 4
        mov     eax, dword[esi]
        or      eax, 0x202020

        cmp     eax, 'send'
        je      .send

        ret

  .send:

        call    window_open
        mov     [ebx + window.type], WINDOWTYPE_DCC

        ret



ctcp_reply:

        push    esi
        mov     dword [usercommand], 'NOTI'
        mov     dword [usercommand+4], 'CE  '

        mov     esi, servercommand+1
        mov     edi, usercommand+7
  .nickloop:
        lodsb
        cmp     al, '!'
        je      .done
        cmp     al, ' '
        je      .done
        test    al, al
        je      .fail
        stosb
        jmp     .nickloop
  .done:
        mov     byte [esi-1], 0
        mov     ax, ' :'
        stosw
        mov     al, 1
        stosb

        pop     esi
  .replyloop:
        lodsb
        cmp     al, 1
        jbe     .done2
        stosb
        jmp     .replyloop
  .done2:

        mov     al, 1
        stosb
        mov     ax, 0x0a0d
        stosw

        lea     esi, [edi - usercommand]
        mcall   send, [socketnum], usercommand, , 0
  .fail:
        ret



cmd_part:

        cmp     byte [esi+4], ' '
        jne     .fail
        add     esi, 5  ; skip 'PART '

; Is it me who parted?
        mov     edi, servercommand+1
        call    compare_to_nick
        jne     .not_me

; yes, close the window (if its open)
        call    window_find
        test    ebx, ebx
        jz      @f
        call    window_close
  @@:
  .fail:

        ret


; somebody else parted, just print message
  .not_me:
        push    esi
        call    window_open

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, part_header
        call    print_text2

        mov     eax, servercommand+1
        mov     dl, '!'
        mov     cl, ' '
        call    print_text

        mov     esi, has_left_channel
        call    print_text2

        pop     esi
        call    print_text2

        mov     esi, str_newline
        call    print_text2

        mov     ebx, [window_print]
        mov     esi, servercommand+1
        call    user_remove

        ret



cmd_join:

        cmp     byte[esi+4], ' '
        jne     .fail
        add     esi, 5  ; skip 'JOIN '

; compare nick: did we join a channel?
        mov     edi, servercommand+1
        call    compare_to_nick
        jne     .not_me

        push    esi
        call    window_open
        test    eax, eax
        jz      .fail
        mov     [ebx + window.type], WINDOWTYPE_CHANNEL
        mov     [window_active], ebx

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, join_header
        call    print_text2

        mov     esi, str_talking
        call    print_text2

        pop     eax
        mov     dl, ' '
        call    print_text

        mov     esi, str_dotnewline
        call    print_text2

        call    draw_window

        ret

  .not_me:
        push    esi
        call    window_open

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, join_header
        call    print_text2

        mov     eax, servercommand+1
        mov     dl, '!'
        call    print_text

        mov     esi, joins_channel
        call    print_text2

        pop     esi
        call    print_text2

        mov     esi, str_newline
        call    print_text2

        mov     ebx, [window_print]
        mov     esi, servercommand+1
        call    user_add

        ret

  .fail:
        add     esp, 4
        ret




cmd_nick:

        cmp     byte[esi+4], ' '
        jne     .fail
        add     esi, 5          ; skip 'NICK '
        cmp     byte[esi], ':'
        jne     @f
        inc     esi
  @@:

; Is it me who changed nick?
        push    esi
        mov     edi, servercommand+1
        call    compare_to_nick
        jne     .not_me

        mov     ecx, MAX_NICK_LEN-1
        mov     esi, [esp]
  @@:
        lodsb
        test    al, al
        jz      @f
        cmp     al, ' '
        je      @f
        cmp     al, 10
        je      @f
        cmp     al, 13
        je      @f
        stosb
        dec     ecx
        jnz     @r
  @@:
        xor     al, al
        stosb
  .not_me:

        mov     ebx, windows
        mov     ecx, MAX_WINDOWS
  .window_loop:
        push    ecx ebx
        cmp     [ebx + window.type], WINDOWTYPE_CHANNEL
        jne     .next_window

        mov     esi, servercommand+1
        call    user_remove
        test    edi, edi
        jz      .next_window

        mov     esi, [esp + 8]
        call    user_add

        mov     [window_print], ebx

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, nick_header
        call    print_text2

        mov     eax, servercommand+1
        mov     dl, '!'
        call    print_text

        mov     esi, is_now_known_as
        call    print_text2

        mov     esi, [esp + 8]  ; FIXME: dont print the 0x0a0d!!!
        call    print_text2

        mov     esi, str_newline
        call    print_text2

  .next_window:
        pop     ebx ecx
        add     ebx, sizeof.window
        dec     ecx
        jnz     .window_loop

        pop     esi

  .fail:

        ret




cmd_kick:

        cmp     byte [esi+4], ' '
        jne     .fail
        add     esi, 5  ; skip 'KICK '
; Is it me who got kicked?
        mov     edi, servercommand+1
        call    compare_to_nick
        jne     .not_me

; TODO: mark channel as disconnected

  .not_me:
; find the channel user has been kicked from
        push    esi
        call    skip_parameter
        call    window_open

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, kick_header
        call    print_text2

        mov     eax, servercommand+1
        mov     dl, '!'
        call    print_text

        mov     esi, kicked
        call    print_text2

        pop     esi
        call    print_text2

        mov     esi, str_newline
        call    print_text2

        mov     ebx, [window_print]
        mov     esi, servercommand+1
        call    user_remove

  .fail:

        ret



cmd_quit:

        cmp     byte [esi+4], ' '
        jne     .fail

        mov     ebx, windows
        mov     ecx, MAX_WINDOWS

  .window_loop:
        push    ecx
        cmp     [ebx + window.type], WINDOWTYPE_CHANNEL
        jne     .next_window

        mov     esi, servercommand+1
        call    user_remove
        test    edi, edi
        jz      .next_window

        push    ebx
        mov     [window_print], ebx

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, quit_header
        call    print_text2

        mov     eax, servercommand+1
        mov     dl, '!'
        call    print_text

        mov     esi, has_quit_irc
        call    print_text2

; TODO: check if quit message was given, and print it to the window
        pop     ebx
  .next_window:
        pop     ecx
        add     ebx, sizeof.window
        dec     ecx
        jnz     .window_loop

  .fail:


        ret



cmd_mode:

        cmp     byte [esi+4], ' '
        jne     .fail
        add     esi, 5  ; skip 'MODE '
        call    window_find
        test    ebx, ebx
        jz      .fail
        mov     [window_print], ebx
        push    esi

        if TIMESTAMP
        call    print_timestamp
        end if

        mov     esi, mode_header
        call    print_text2

        mov     eax, servercommand+1
        mov     dl, '!'
        call    print_text

        mov     esi, sets_mode
        call    print_text2

        pop     esi
        call    print_text2

        mov     esi, str_newline
        call    print_text2

;;; TODO: change username if needed

  .fail:

        ret


cmd_353:                ; channel usernames reply

        add     esi, 4  ; skip '353 '
        call    skip_parameter
        inc     esi     ; channel type '*', '=' or '@'
        inc     esi     ; ' '
        call    window_open

; now find window ptr and check if this is the first 353 message
        mov     ebx, [window_print]
        test    [ebx + window.flags], FLAG_RECEIVING_NAMES
        jnz     .add

        or      [ebx + window.flags], FLAG_RECEIVING_NAMES
;        mov     [ebx + window.users], 0
        ; TODO: remove all users?

  .add:
        push    esi
        call    user_add
        pop     esi

  .namesloop:
        lodsb
        test    al, al
        jz      .done
        cmp     al, ' '                 ; names list is separated with spaces
        jne     .namesloop
        jmp     .add

  .done:
        call    draw_channel_list

        ret





cmd_366:        ; channel usernames end

        add     esi, 4          ; skip '366 '
        call    skip_parameter
        call    window_open

        mov     ebx, [window_print]
        and     [ebx + window.flags], not FLAG_RECEIVING_NAMES

        ret




cmd_topic:

        add     esi, 4          ; skip '332 '
        call    skip_parameter
        call    window_open

        if TIMESTAMP
        call    print_timestamp
        end if

        push    esi
        mov     esi, topic_header
        call    print_text2

        mov     esi, str_topic
        call    print_text2

        pop     esi
        call    print_text2

        mov     esi, str_topic_end
        call    print_text2

        ret


cmd_333:

        add     esi, 4          ; skip '333 '
        call    skip_parameter               ;;;;
        call    window_open

        if TIMESTAMP
        call    print_timestamp
        end if

        push    esi
        mov     esi, topic_header
        call    print_text2

        mov     esi, str_setby
        call    print_text2

;        pop     esi
;        call    print_text2

        pop     eax
        mov     dl, '!'
        call    print_text

        mov     esi, str_newline
        call    print_text2

  .fail:
        ret

cmd_322:        ; LIST

        add     esi, 4

        mov     [window_print], windows         ; FIXME
        call    skip_parameter
        mov     eax, esi
        mov     dl, 13
        call    print_text
        mov     esi, str_newline
        call    print_text2

        ret

cmd_323:        ; LIST END

        ret