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kolibrios/programs/network/downloader/downloader.asm
hidnplayr 4094e1f523 downloader: added status message, bugfixes. 
git-svn-id: svn://kolibrios.org@5543 a494cfbc-eb01-0410-851d-a64ba20cac60
2015-03-21 19:30:57 +00:00

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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2014-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; downloader.asm - HTTP client for KolibriOS ;;
;; ;;
;; hidnplayr@kolibrios.org ;;
;; ;;
;; GNU GENERAL PUBLIC LICENSE ;;
;; Version 2, June 1991 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
URLMAXLEN = 65535
__DEBUG__ = 1
__DEBUG_LEVEL__ = 1
format binary as ""
use32
org 0x0
db 'MENUET01' ; header
dd 0x01 ; header version
dd START ; entry point
dd IM_END ; image size
dd I_END+0x1000 ; required memory
dd I_END+0x1000 ; esp
dd url
dd 0x0 ; I_Path
include '../../macros.inc'
include '../../proc32.inc'
include '../../dll.inc'
include '../../debug-fdo.inc'
include '../../develop/libraries/box_lib/trunk/box_lib.mac'
include '../../develop/libraries/http/http.inc'
virtual at 0
http_msg http_msg
end virtual
START:
mcall 68, 11 ; init heap so we can allocate memory dynamically
; load libraries
stdcall dll.Load, @IMPORT
test eax, eax
jnz mainloop.exit
; wanted events
mcall 40, EVM_REDRAW + EVM_KEY + EVM_BUTTON + EVM_MOUSE + EVM_MOUSE_FILTER
; prepare filename buffers
mov edi, fname_buf
mov esi, download_file_path
@@:
lodsb
stosb
test al, al
jnz @r
; Initialise OpenDialog
invoke OpenDialog_Init, OpenDialog_data
; If user provided parameters, start download right away!
cmp byte[url], 0
jne download
mov [OpenDialog_data.draw_window], draw_window
redraw:
call draw_window
mainloop:
mcall 10 ; wait here for event
cmp eax, EV_REDRAW
je redraw
cmp eax, EV_KEY
je .key
cmp eax, EV_BUTTON
je .button
cmp eax, EV_MOUSE
je .mouse
jmp mainloop
.key:
mcall 2 ; read key
invoke edit_box_key, edit1
cmp ax, 13 shl 8
je download
jmp mainloop
.button:
mcall 17 ; get id
cmp ah, 1 ; button id=1 ?
je .exit
cmp [btn_text], sz_download
je download
cmp [btn_text], sz_open
je open_file
.exit:
mcall -1 ; exit
.mouse:
invoke edit_box_mouse, edit1
jmp mainloop
open_file:
mcall 70, fileopen
jmp mainloop
download:
; Extract the filename from URL
mov edi, url
xor al, al
mov ecx, URLMAXLEN
repne scasb
mov esi, edi
dec esi
dec esi
std
.loop:
lodsb
cmp al, '/'
je .done
test al, al
jnz .loop
.done:
cld
mov ecx, edi
sub ecx, esi
inc esi
inc esi
mov edi, filename_area
rep movsb
; invoke OpenDialog
invoke OpenDialog_Start, OpenDialog_data
mcall 40, EVM_REDRAW + EVM_BUTTON + EVM_STACK
call draw_window
; Create the local file
mov [fileinfo], 2 ; create/write to file
xor eax, eax
mov [fileinfo.offset], eax
mov [fileinfo.offset+4], eax
mov [fileinfo.size], eax
mcall 70, fileinfo
test eax, eax
jnz create_error
; Start the download
invoke HTTP_get, url, 0, FLAG_STREAM or FLAG_REUSE_BUFFER, 0
test eax, eax
jz get_error
mov [identifier], eax
mov [offset], 0
mov [btn_text], sz_cancel
mov [status], sz_downloading
or [edit1.flags], ed_figure_only
and [edit1.flags], not ed_focus
push [sc.work]
pop [edit1.color]
call draw_window
jmp download_loop
get_error:
mov [btn_text], sz_exit
mov [status], sz_err_http
jmp redraw
create_error:
mov [btn_text], sz_exit
mov [status], sz_err_create
jmp redraw
download_loop:
mcall 10
cmp eax, EV_REDRAW
je .redraw
cmp eax, EV_BUTTON
je .button
invoke HTTP_receive, [identifier]
test eax, eax
jz got_data
jmp download_loop
.redraw:
call draw_window
jmp download_loop
.button:
jmp http_free
got_data:
mov ebp, [identifier]
test [ebp + http_msg.flags], 0xffff0000 ; error?
jnz http_error
cmp [fileinfo], 3 ; Did we write before?
je .write
test [ebp + http_msg.flags], FLAG_CONTENT_LENGTH
jz .first_write
mov eax, [ebp + http_msg.content_length]
mov [pb.max], eax
DEBUGF 1, "new file size=%u\n", eax
mov [fileinfo], 4 ; set end of file
mov [fileinfo.offset], eax ; new file size
mcall 70, fileinfo
test eax, eax
jnz write_error
.first_write:
mov [fileinfo], 3 ; write to existing file
.write:
mov ecx, [ebp + http_msg.content_received]
sub ecx, [offset]
jz download_loop ; more then 0 data bytes?
mov [fileinfo.size], ecx
mov eax, [ebp + http_msg.content_ptr]
mov [fileinfo.buffer], eax
mov ebx, [offset]
mov [fileinfo.offset], ebx
DEBUGF 1, "Writing to disk: size=%u offset=%u\n", ecx, ebx
mcall 70, fileinfo
test eax, eax ; check error code
jnz write_error
cmp ebx, ecx ; check if all bytes were written to disk
jne write_error
mov eax, [ebp + http_msg.content_received]
mov [offset], eax
mov [pb.value], eax
invoke progressbar_draw, pb
test [ebp + http_msg.flags], FLAG_GOT_ALL_DATA
jz download_loop
; Download completed successfully
mov [status], sz_complete
mov [pb.progress_color], 0x0000c800 ; green
mov [btn_text], sz_open
jmp http_free
write_error:
mov [status], sz_err_full
mov [pb.progress_color], 0x00c80000 ; red
mov [btn_text], sz_exit
jmp http_free
http_error:
mov [status], sz_err_http
mov [pb.progress_color], 0x00c80000 ; red
mov [btn_text], sz_exit
; jmp http_free
http_free:
mcall 40, EVM_REDRAW + EVM_BUTTON
push [ebp + http_msg.content_received]
pop [pb.value]
mov ecx, [ebp + http_msg.content_ptr]
test ecx, ecx
jz @f
mcall 68, 13 ; free the buffer
@@:
invoke HTTP_free, [identifier] ; free headers and connection
jmp redraw
draw_window:
mcall 12, 1 ; start window draw
; get system colors
mcall 48, 3, sc, 40
; draw window
mov edx, [sc.work]
or edx, 0x34000000
mcall 0, <50, 320>, <350, 110>, , 0, title
; draw button
mcall 8, <229,75>, <60,16>, 22, [sc.work_button]
; draw button text
mov ecx, [sc.work_button_text]
or ecx, 80000000h
mcall 4, <240,65>, , [btn_text]
; draw status text
mov ecx, [sc.work_text]
or ecx, 80000000h
mcall 4, <10,65>, , [status]
; draw editbox
edit_boxes_set_sys_color edit1, editboxes_end, sc
invoke edit_box_draw, edit1
cmp [identifier], 0
je @f
; draw progressbar
invoke progressbar_draw, pb
@@:
mcall 12, 2 ; end window draw
dont_draw:
ret
;---------------------------------------------------------------------
; Data area
;-----------------------------------------------------------------------------
align 4
@IMPORT:
library lib_http, 'http.obj', \
box_lib, 'box_lib.obj', \
proc_lib, 'proc_lib.obj'
import lib_http, \
HTTP_get, 'get', \
HTTP_receive, 'receive', \
HTTP_free, 'free'
import box_lib, \
edit_box_draw, 'edit_box', \
edit_box_key, 'edit_box_key', \
edit_box_mouse, 'edit_box_mouse', \
progressbar_draw, 'progressbar_draw', \
progressbar_prog, 'progressbar_progress'
import proc_lib, \
OpenDialog_Init, 'OpenDialog_init', \
OpenDialog_Start, 'OpenDialog_start'
fileinfo dd 2
.offset dd 0, 0
.size dd 0
.buffer dd 0
db 0
dd fname_buf
fileopen dd 7
dd 0 ; flags
dd fname_buf ; parameters
dd 0 ; reserved
dd 0 ; reserved
db "/sys/@open", 0 ; path
edit1 edit_box 299, 5, 10, 0xffffff, 0x0000ff, 0x0080ff, 0x000000, 0x8000, URLMAXLEN, url, mouse_dd, ed_focus+ed_always_focus, 0, 0
editboxes_end:
identifier dd 0
btn_text dd sz_download
status dd sz_null
sz_download db 'Download', 0
sz_cancel db ' Cancel ', 0
sz_open db ' Open ', 0
sz_exit db ' Exit ', 0
sz_null db 0
sz_downloading db 'Downloading..', 0
sz_complete db 'Download completed', 0
sz_err_create db 'Could not create the local file!', 0
sz_err_full db 'Disk full!', 0
sz_err_http db 'HTTP error!', 0
title db 'HTTP Downloader', 0
OpenDialog_data:
.type dd 1 ; Save
.procinfo dd procinfo
.com_area_name dd communication_area_name
.com_area dd 0
.opendir_path dd temp_dir_path
.dir_default_path dd communication_area_default_path
.start_path dd open_dialog_path
.draw_window dd dont_draw
.status dd 0
.openfile_patch dd fname_buf
.filename_area dd filename_area
.filter_area dd filter
.x:
.x_size dw 420 ; Window X size
.x_start dw 200 ; Window X position
.y:
.y_size dw 320 ; Window y size
.y_start dw 120 ; Window Y position
communication_area_name db 'FFFFFFFF_open_dialog',0
open_dialog_path db '/sys/File Managers/opendial',0
communication_area_default_path db '/sys',0
filter:
dd 0
db 0
pb:
.value dd 0
.left dd 5
.top dd 35
.width dd 300
.height dd 16
.style dd 1
.min dd 0
.max dd 0
.back_color dd 0xefefef
.progress_color dd 0xc8c8c8
.frame_color dd 0x94aece
.frame_color2 dd 0xffffff
include_debug_strings
download_file_path db '/tmp0/1/', 0
IM_END:
url rb URLMAXLEN
sc system_colors
offset dd ?
mouse_dd dd ?
filename_area rb 256
temp_dir_path rb 4096
procinfo rb 1024
fname_buf rb 4096
text_work_area rb 1024
I_END:
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