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!include WordFunc.nsh
; Definitions for Java Detection
!define JRE_VERSION "1.6"
!define JRE32_URL "http://javadl.sun.com/webapps/download/AutoDL?BundleId=52247&/jre-6u27-windows-i586.exe"
!define JRE64_URL "http://javadl.sun.com/webapps/download/AutoDL?BundleId=52249&/jre-6u27-windows-x64.exe"
Var JavaDownload
Var JavaBits
Function GetJRE
${If} ${RunningX64}
StrCpy $JavaDownload ${JRE64_URL}
StrCpy $JavaBits "64"
${Else}
StrCpy $JavaDownload ${JRE32_URL}
StrCpy $JavaBits "32"
${EndIf}
MessageBox MB_OK "This product uses Java ${JRE_VERSION}, \
$JavaBits bits, it will now \
be downloaded and installed"
StrCpy $2 "$TEMP\Java Runtime Environment.exe"
nsisdl::download /TIMEOUT=30000 $JavaDownload $2
Pop $R0 ;Get the return value
StrCmp $R0 "success" +3
MessageBox MB_OK "Download failed: $R0"
Quit
ExecWait $2
Delete $2
FunctionEnd
Function DoDetectJRE
DetailPrint "Desired Java version ${JRE_VERSION}"
; Check in HKCU for CurrentVersion
ClearErrors
ReadRegStr $2 HKCU "SOFTWARE\JavaSoft\Java Runtime Environment" \
"CurrentVersion"
IfErrors hklm_version
DetailPrint "HKEY_CURRENT_USER Java version $2"
${VersionCompare} $2 ${JRE_VERSION} $3
IntCmp $3 1 yes yes no
hklm_version:
; Check in HKLM for CurrentVersion
ClearErrors
ReadRegStr $2 HKLM "SOFTWARE\JavaSoft\Java Runtime Environment" \
"CurrentVersion"
IfErrors hkcu_any
DetailPrint "HKEY_LOCAL_MACHINE Java version $2"
${VersionCompare} $2 ${JRE_VERSION} $3
IntCmp $3 1 yes yes no
hkcu_any:
; Check in HKCU for any Java install
StrCpy $0 0
hkcu_any_loop:
EnumRegKey $1 HKCU "SOFTWARE\JavaSoft" $0
StrCmp $1 "Java Runtime Environment" found_hkcu
StrCmp $1 "" hklm_any
IntOp $0 $0 + 1
Goto hkcu_any_loop
found_hkcu:
DetailPrint "HKEY_CURRENT_USER has SOFTWARE\JavaSoft\$1"
Goto maybe
hklm_any:
; Check in HKCU for any Java install
StrCpy $0 0
hklm_any_loop:
EnumRegKey $1 HKLM "SOFTWARE\JavaSoft" $0
StrCmp $1 "Java Runtime Environment" found_hklm
StrCmp $1 "" no
IntOp $0 $0 + 1
Goto hklm_any_loop
found_hklm:
DetailPrint "HKEY_CURRENT_USER has SOFTWARE\JavaSoft\$1"
Goto maybe
yes:
StrCpy $0 2
Goto done
maybe:
StrCpy $0 1
Goto done
no:
StrCpy $0 0
Goto done
done:
FunctionEnd
var dialog
var hwnd
var null
var install
var quit
var skip
Function DetectJRE
Call DoDetectJRE
IntCmp $0 1 ask_maybe ask_no yes
ask_no:
StrCpy $0 "No Java detected. Download and install?"
Goto ask
ask_maybe:
StrCpy $0 "Cannot determine installed Java version. Download and install?"
Goto ask
ask:
MessageBox MB_YESNOCANCEL $0 IDYES do_java IDNO skip_java
bail:
Abort
do_java:
Call GetJRE
skip_java:
yes:
FunctionEnd
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