454 lines
13 KiB
NASM
454 lines
13 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2014-2017. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; downloader.asm - HTTP client for KolibriOS ;;
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;; ;;
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;; hidnplayr@kolibrios.org ;;
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;; ;;
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;; GNU GENERAL PUBLIC LICENSE ;;
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;; Version 2, June 1991 ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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URLMAXLEN = 65535
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__DEBUG__ = 1
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__DEBUG_LEVEL__ = 1
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format binary as ""
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use32
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org 0x0
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db 'MENUET01' ; header
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dd 0x01 ; header version
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dd START ; entry point
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dd IM_END ; image size
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dd I_END+0x1000 ; required memory
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dd I_END+0x1000 ; esp
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dd url
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dd 0x0 ; I_Path
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include '../../macros.inc'
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include '../../proc32.inc'
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include '../../dll.inc'
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include '../../debug-fdo.inc'
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include '../../develop/libraries/box_lib/trunk/box_lib.mac'
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include '../../develop/libraries/http/http.inc'
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virtual at 0
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http_msg http_msg
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end virtual
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START:
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mcall 68, 11 ; init heap so we can allocate memory dynamically
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; load libraries
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stdcall dll.Load, @IMPORT
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test eax, eax
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jnz mainloop.exit
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; wanted events
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mcall 40, EVM_REDRAW + EVM_KEY + EVM_BUTTON + EVM_MOUSE + EVM_MOUSE_FILTER
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; prepare filename buffers
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mov edi, fname_buf
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mov esi, download_file_path
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@@:
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lodsb
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stosb
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test al, al
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jnz @r
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; Initialise OpenDialog
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invoke OpenDialog_Init, OpenDialog_data
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; If user provided parameters, start download right away!
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cmp byte[url], 0
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jne display_url_and_download
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mov [OpenDialog_data.draw_window], draw_window
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redraw:
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call draw_window
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mainloop:
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mcall 10 ; wait here for event
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cmp eax, EV_REDRAW
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je redraw
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cmp eax, EV_KEY
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je .key
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cmp eax, EV_BUTTON
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je .button
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cmp eax, EV_MOUSE
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je .mouse
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jmp mainloop
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.key:
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mcall 2 ; read key
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invoke edit_box_key, edit1
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cmp ax, 13 shl 8
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je download
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jmp mainloop
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.button:
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mcall 17 ; get id
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cmp ah, 1 ; button id=1 ?
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je .exit
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cmp [btn_text], sz_download
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je download
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cmp [btn_text], sz_open
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je open_file
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.exit:
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mcall -1 ; exit
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.mouse:
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invoke edit_box_mouse, edit1
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jmp mainloop
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open_file:
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mcall 70, fileopen
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jmp mainloop
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display_url_and_download:
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xor al, al
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mov ecx, 4096
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mov edi, url
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repne scasb
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sub edi, url+1
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mov [edit1.size], edi
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download:
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; Extract the filename from URL
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mov edi, url
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xor al, al
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mov ecx, URLMAXLEN
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repne scasb
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mov esi, edi
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dec esi
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dec esi
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std
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.loop:
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lodsb
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cmp al, '/'
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je .done
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test al, al
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jnz .loop
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.done:
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cld
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mov ecx, edi
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sub ecx, esi
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inc esi
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inc esi
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mov edi, filename_area
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rep movsb
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; invoke OpenDialog
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invoke OpenDialog_Start, OpenDialog_data
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mcall 40, EVM_REDRAW + EVM_BUTTON + EVM_STACK
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call draw_window
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; Create the local file
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mov [fileinfo], 2 ; create/write to file
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xor eax, eax
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mov [fileinfo.offset], eax
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mov [fileinfo.offset+4], eax
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mov [fileinfo.size], eax
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mcall 70, fileinfo
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test eax, eax
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jnz create_error
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; Start the download
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invoke HTTP_get, url, 0, FLAG_STREAM or FLAG_REUSE_BUFFER, 0
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test eax, eax
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jz get_error
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mov [identifier], eax
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mov [offset], 0
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mov [btn_text], sz_cancel
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mov [status], sz_downloading
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or [edit1.flags], ed_figure_only
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and [edit1.flags], not ed_focus
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push [sc.work]
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pop [edit1.color]
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call draw_window
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jmp download_loop
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get_error:
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mov [btn_text], sz_exit
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mov [status], sz_err_http
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jmp redraw
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create_error:
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mov [btn_text], sz_exit
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mov [status], sz_err_create
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jmp redraw
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download_loop:
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mcall 10
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cmp eax, EV_REDRAW
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je .redraw
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cmp eax, EV_BUTTON
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je .button
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invoke HTTP_receive, [identifier]
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test eax, eax
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jz got_data
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jmp download_loop
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.redraw:
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call draw_window
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jmp download_loop
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.button:
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jmp http_free
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got_data:
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mov ebp, [identifier]
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test [ebp + http_msg.flags], 0xffff0000 ; error?
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jnz http_error
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cmp [fileinfo], 3 ; Did we write before?
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je .write
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test [ebp + http_msg.flags], FLAG_CONTENT_LENGTH
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jz .first_write
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mov eax, [ebp + http_msg.content_length]
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mov [pb.max], eax
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DEBUGF 1, "new file size=%u\n", eax
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mov [fileinfo], 4 ; set end of file
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mov [fileinfo.offset], eax ; new file size
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mcall 70, fileinfo
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test eax, eax
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jnz write_error
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.first_write:
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mov [fileinfo], 3 ; write to existing file
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.write:
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mov ecx, [ebp + http_msg.content_received]
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sub ecx, [offset]
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jz .no_data ; more then 0 data bytes?
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mov [fileinfo.size], ecx
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mov eax, [ebp + http_msg.content_ptr]
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mov [fileinfo.buffer], eax
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mov ebx, [offset]
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mov [fileinfo.offset], ebx
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DEBUGF 1, "Writing to disk: size=%u offset=%u\n", ecx, ebx
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mcall 70, fileinfo
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test eax, eax ; check error code
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jnz write_error
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cmp ebx, ecx ; check if all bytes were written to disk
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jne write_error
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mov eax, [ebp + http_msg.content_received]
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mov [offset], eax
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mov [pb.value], eax
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invoke progressbar_draw, pb
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.no_data:
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test [ebp + http_msg.flags], FLAG_GOT_ALL_DATA
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jz download_loop
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; Download completed successfully
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mov [status], sz_complete
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mov [pb.progress_color], 0x0000c800 ; green
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mov [btn_text], sz_open
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jmp http_free
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write_error:
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mov [status], sz_err_full
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mov [pb.progress_color], 0x00c80000 ; red
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mov [btn_text], sz_exit
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jmp http_free
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http_error:
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mov [status], sz_err_http
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mov [pb.progress_color], 0x00c80000 ; red
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mov [btn_text], sz_exit
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; jmp http_free
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http_free:
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mcall 40, EVM_REDRAW + EVM_BUTTON
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push [ebp + http_msg.content_received]
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pop [pb.value]
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mov ecx, [ebp + http_msg.content_ptr]
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test ecx, ecx
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jz @f
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mcall 68, 13 ; free the buffer
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@@:
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invoke HTTP_free, [identifier] ; free headers and connection
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jmp redraw
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draw_window:
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mcall 12, 1 ; start window draw
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; get system colors
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mcall 48, 3, sc, 40
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; draw window
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mov edx, [sc.work]
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or edx, 0x34000000
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mcall 0, <50, 420>, <350, 120>, , 0, title
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; draw button
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mcall 8, <320,75>, <50,24>, 22, [sc.work_button]
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; draw button text
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mov ecx, [sc.work_button_text]
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or ecx, 90000000h
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mcall 4, <325,56>, , [btn_text]
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; draw status text
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mov ecx, [sc.work_text]
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or ecx, 90000000h
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mcall 4, <10,70>, , [status]
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; draw editbox
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edit_boxes_set_sys_color edit1, editboxes_end, sc
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invoke edit_box_draw, edit1
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cmp [identifier], 0
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je @f
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; draw progressbar
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invoke progressbar_draw, pb
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@@:
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mcall 12, 2 ; end window draw
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dont_draw:
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ret
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;---------------------------------------------------------------------
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; Data area
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;-----------------------------------------------------------------------------
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align 4
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@IMPORT:
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library lib_http, 'http.obj', \
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box_lib, 'box_lib.obj', \
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proc_lib, 'proc_lib.obj'
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import lib_http, \
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HTTP_get, 'get', \
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HTTP_receive, 'receive', \
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HTTP_free, 'free'
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import box_lib, \
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edit_box_draw, 'edit_box', \
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edit_box_key, 'edit_box_key', \
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edit_box_mouse, 'edit_box_mouse', \
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progressbar_draw, 'progressbar_draw', \
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progressbar_prog, 'progressbar_progress'
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import proc_lib, \
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OpenDialog_Init, 'OpenDialog_init', \
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OpenDialog_Start, 'OpenDialog_start'
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fileinfo dd 2
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.offset dd 0, 0
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.size dd 0
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.buffer dd 0
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db 0
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dd fname_buf
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fileopen dd 7
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dd 0 ; flags
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dd fname_buf ; parameters
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dd 0 ; reserved
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dd 0 ; reserved
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db "/sys/@open", 0 ; path
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edit1 edit_box 400, 5, 10, 0xffffff, 0x0000ff, 0x0080ff, 0x000000, 0x90000000, URLMAXLEN, url, mouse_dd, ed_focus+ed_always_focus, 0, 0
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editboxes_end:
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identifier dd 0
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btn_text dd sz_download
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status dd sz_null
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sz_download db 'Download', 0
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sz_cancel db ' Cancel ', 0
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sz_open db ' Open ', 0
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sz_exit db ' Exit ', 0
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sz_null db 0
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sz_downloading db 'Downloading..', 0
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sz_complete db 'Download completed', 0
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sz_err_create db 'Could not create the local file!', 0
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sz_err_full db 'Disk full!', 0
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sz_err_http db 'HTTP error!', 0
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title db 'HTTP Downloader', 0
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OpenDialog_data:
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.type dd 1 ; Save
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.procinfo dd procinfo
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.com_area_name dd communication_area_name
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.com_area dd 0
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.opendir_path dd temp_dir_path
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.dir_default_path dd communication_area_default_path
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.start_path dd open_dialog_path
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.draw_window dd dont_draw
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.status dd 0
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.openfile_patch dd fname_buf
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.filename_area dd filename_area
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.filter_area dd filter
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.x:
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.x_size dw 420 ; Window X size
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.x_start dw 200 ; Window X position
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.y:
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.y_size dw 320 ; Window y size
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.y_start dw 140 ; Window Y position
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communication_area_name db 'FFFFFFFF_open_dialog',0
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open_dialog_path db '/sys/File Managers/opendial',0
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communication_area_default_path db '/sys',0
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filter:
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dd 0
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db 0
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pb:
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.value dd 0
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.left dd 5
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.top dd 45
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.width dd 300
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.height dd 16
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.style dd 1
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.min dd 0
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.max dd 0
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.back_color dd 0xefefef
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.progress_color dd 0xc8c8c8
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.frame_color dd 0x94aece
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.frame_color2 dd 0xffffff
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include_debug_strings
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download_file_path db '/tmp0/1/', 0
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IM_END:
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url rb URLMAXLEN
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sc system_colors
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offset dd ?
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mouse_dd dd ?
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filename_area rb 256
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temp_dir_path rb 4096
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procinfo rb 1024
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fname_buf rb 4096
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text_work_area rb 1024
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I_END: |