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|
; Debian-Installer Loader - Download functions
;
; Copyright (C) 2007,2008,2009 Robert Millan <rmh@aybabtu.com>
; Copyright (C) 2010,2011 Didier Raboud <odyx@debian.org>
;
; This program is free software: you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation, either version 3 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program. If not, see <http://www.gnu.org/licenses/>.
Function Download
; Base URL
Pop $0
; Target dir
Pop $6
; Filename
Pop $2
; Allow it to fail?
Pop $3
; Check its md5sum ?
Pop $4
Var /GLOBAL nsisdl_proxy
${If} $proxy == ""
StrCpy $nsisdl_proxy /NOIEPROXY
${Else}
StrCpy $nsisdl_proxy "/PROXY $proxy"
${Endif}
DetailPrint "GET: $0/$2"
NSISdl::download /TRANSLATE $(nsisdl1) $(nsisdl2) $(nsisdl3) $(nsisdl4) $(nsisdl5) $(nsisdl6) $(nsisdl7) $(nsisdl8) $nsisdl_proxy $0/$2 $6\$2
Pop $R0
${If} $R0 != "success"
${If} $R0 != "cancel"
MessageBox MB_OK|MB_ICONSTOP "$(error): $0/$2 $R0"
${EndIf}
${If} $3 == "false"
Quit
${Endif}
${EndIf}
${If} $4 != "false"
; $2 goes in the text
DetailPrint "$(computing_checksum)"
; Compute sha256sum of downloaded file, put it as $1
libgcrypt_hash::hashsum "sha256" $6\$2
Pop $1
${If} $4 != $1
; SHA256 don't match, try sha1sum
libgcrypt_hash::hashsum "sha1" $6\$2
Pop $1
${If} $4 != $1
; SHA1 don't match, try md5sum
libgcrypt_hash::hashsum "md5" $6\$2
Pop $1
${If} $4 != $1
MessageBox MB_OK|MB_ICONSTOP "$(checksum_mismatch)"
Quit
${EndIf}
${EndIf}
${EndIf}
DetailPrint "$4 = $1"
${EndIf}
Push "$R0"
FunctionEnd
Function Get_SHA1_ref
;Line is like:
; dc61910e515a26d252330d311136fa200e4d06fa 94 main/debian-installer/binary-amd64/Release
; Url we are looking for
Pop $0
; Release file
Pop $1
ClearErrors
FileOpen $3 $1 r
IfErrors sha1_done ; Make sure it's readable
sha1_readline:
FileRead $3 $4
IfErrors sha1_endoffile
StrCpy $5 $4 -1 51 ; space + sha1sum + space-leftpadded size, -1 to get rid of newline
; Compare what we want with what we have
StrCmpS $0 $5 0 sha1_readline
StrCpy $0 $4 40 1 ; Copying the found sha1sum to $0
Push $0
FileClose $3
Goto sha1_done
sha1_endoffile:
Push "false-sha1"
FileClose $3
sha1_done:
FunctionEnd
Function Get_SHA256_ref
;Line is like:
; d62f7850ef1a0a381c1e856936761ddd678e16dfdab90685de2deaf248f8d655 108 contrib/debian-installer/binary-amd64/Release
;or like;
;8716fec256b2df0b3e7c2f45a90813285b28fe7a72e4925c14d456d40af4caa1 ./netboot/debian-installer/amd64/linux
; Url we are looking for
Pop $0
; Release file
Pop $1
ClearErrors
FileOpen $3 $1 r
IfErrors sha256_done ; Make sure it's readable
sha256_readline:
FileRead $3 $4
IfErrors sha256_endoffile
StrCpy $5 $4 -1 75 ; space + sha256sum + space-leftpadded size, -1 to get rid of newline
; Compare what we want with what we have
StrCmpS $0 $5 0 sha256_alternativesyntax
StrCpy $0 $4 64 1 ; Copying the found sha256sum to $0
Push $0
Goto sha256_done
sha256_alternativesyntax:
StrCpy $5 $4 -1 68 ; sha256sum + spaces and ./, -1 to get rid of newline
; Compare what we want with what we have
StrCmpS $0 $5 0 sha256_readline
StrCpy $0 $4 64 ; Copying the found sha256sum to $0
Push $0
Goto sha256_done
sha256_endoffile:
Push "false-sha256"
sha256_done:
FileClose $3
FunctionEnd
|
