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- <# :
- @echo off
- copy/b "%~f0" "%temp%\%~n0.ps1" >nul
- powershell -v 2 -ep bypass -noprofile "%temp%\%~n0.ps1" "'%cd% '" "'%~1'"
- del "%temp%\%~n0.ps1"
- echo: & pause
- exit /b
- #>
- param([string]$cwd='.', [string]$dll)
- function main {
- write-host -f white -b black `
- "Chrome 'developer mode extensions' warning disabler 20170328"
- $pathsDone = @{}
- if ($dll -and (gi -literal $dll)) {
- doPatch "DRAG'n'DROPPED" ((gi -literal $dll).directoryName + '\')
- exit
- }
- doPatch 'CURRENT DIRECTORY' ((gi -literal $cwd).fullName + '\')
- ('HKLM', 'HKCU') | %{ $hive = $_
- ('', '\Wow6432Node') | %{
- $key = "${hive}:\SOFTWARE$_\Google\Update\Clients"
- gci -ea silentlycontinue $key -r | gp | ?{ $_.CommandLine } | %{
- $path = $_.CommandLine -replace '"(.+?\\\d+\.\d+\.\d+\.\d+\\).+', '$1'
- if (!$pathsDone[$path.toLower()]) {
- doPatch REGISTRY $path
- $pathsDone[$path.toLower()] = $true
- }
- }
- }
- }
- }
- function doPatch([string]$pathLabel, [string]$path) {
- $dll = Join-Path $path chrome.dll
- if (!(Test-Path -literal $dll)) {
- return
- }
- ''
- $localAppData = [Environment]::GetFolderPath('LocalApplicationData')
- "$pathLabel $((split-path $dll).Replace($localAppData, '%LocalAppData%'))"
- "`tREADING Chrome.dll..."
- $bin = [IO.BinaryReader][IO.File]::OpenRead($dll)
- $bytes = $bin.ReadBytes(1MB)
- # process PE headers
- $BC = [BitConverter]
- $coff = $BC::ToUInt32($bytes,0x3C) + 4
- $is64 = $BC::ToUInt16($bytes,$coff) -eq 0x8664
- $opthdr = $coff+20
- $codesize = $BC::ToUInt32($bytes,$opthdr+4)
- $imagebase32 = $BC::ToUInt32($bytes,$opthdr+28)
- # patch the flag in data section
- $bin.BaseStream.Position = $codesize
- $data = $BC::ToString($bin.ReadBytes($bin.BaseStream.Length - $codesize))
- $bin.Close()
- $flag = 'ExtensionDeveloperModeWarning'
- $stroffs = $data.IndexOf($BC::ToString($flag[1..99]))
- if ($stroffs -lt 0) {
- write-host -f red "`t$flag not found"
- return
- }
- if ($data.substring($stroffs-3, 2) -eq '00') {
- write-host -f darkgreen "`tALREADY PATCHED"
- return
- }
- $stroffs = $stroffs/3 - 1 + $codesize
- $centbrowser = $data.indexOf($BC::ToString('CentBrowser'[0..99])) -gt 0
- $EA = $ErrorActionPreference
- $ErrorActionPreference = 'silentlyContinue'
- $exe = join-path (split-path $path) chrome.exe
- while ((get-process chrome -module | ?{ $_.FileName -eq $exe })) {
- forEach ($timeout in 15..0) {
- write-host -n -b yellow -f black `
- "`rChrome is running and will be terminated in $timeout sec. "
- write-host -n -b yellow -f darkyellow "Press ENTER to do it now. "
- if ([console]::KeyAvailable) {
- $key = $Host.UI.RawUI.ReadKey("AllowCtrlC,IncludeKeyDown,NoEcho")
- if ($key.virtualKeyCode -eq 13) { break }
- if ($key.virtualKeyCode -eq 27) { write-host; exit }
- }
- sleep 1
- }
- write-host
- get-process chrome | ?{
- $_.MainWindowHandle.toInt64() -and ($_ | gps -file).FileName -eq $exe
- } | %{
- "`tTrying to exit gracefully..."
- if ($_.CloseMainWindow()) {
- sleep 1
- }
- }
- $killLabelShown = 0
- get-process chrome | ?{
- ($_ | gps -file | select -expand FileName) -eq $exe
- } | %{
- if (!$killLabelShown++) {
- "`tTerminating background chrome processes..."
- }
- stop-process $_ -force
- }
- sleep -milliseconds 200
- }
- $ErrorActionPreference = $EA
- $bytes = [IO.File]::ReadAllBytes($dll)
- $bytes[$stroffs] = 0
- "`tPATCHED $flag flag"
- # patch the channel restriction code for stable/beta
- $rxChannel = '83-F8-(?:03-7D|02-7F|02-0F-8F)'
- # old code: cmp eax,3; jge ...
- # new code: cmp eax,2; jg ... (jg can be 2-byte)
- function patch64 {
- $pos = 0
- $rx = [regex]"$rxChannel-.{1,100}-48-8D"
- do {
- $m = $rx.match($code,$pos)
- if (!$m.success) { break }
- $chanpos = $searchBase + $m.index/3 + 2
- $pos = $m.index + $m.length + 1
- $offs = $BC::ToUInt32($bytes, $searchBase + $pos/3+1)
- $diff = $searchBase + $pos/3+5+$offs - $stroffs
- } until ($diff -ge 0 -and $diff -le 4096 -and $diff % 256 -eq 0)
- if (!$m.success) {
- $rx = [regex]"84-C0.{18,48}($rxChannel)-.{30,60}84-C0"
- $m = $rx.matches($code)
- if ($m.count -ne 1) { return }
- $chanpos = $searchBase + $m[0].groups[1].index/3 + 2
- }
- $chanpos
- }
- function patch86 {
- $flagOffs = [uint32]$stroffs + [uint32]$imagebase32
- $flagOffsStr = $BC::ToString($BC::GetBytes($flagOffs))
- $variants = "(?<channel>$rxChannel-.{1,100})-68-(?<flag>`$1-.{6}`$2)",
- "68-(?<flag>`$1-.{6}`$2).{300,500}E8.{12,32}(?<channel>$rxChannel)",
- "E8.{12,32}(?<channel>$rxChannel).{300,500}68-(?<flag>`$1-.{6}`$2)"
- forEach ($variant in $variants) {
- $pattern = $flagOffsStr -replace '^(..)-.{6}(..)', $variant
- $patternDisplay = $pattern -replace '^(.{40}).+', '$1'
- write-host -f darkgray "`tLooking for $patternDisplay..."
- $minDiff = 65536
- foreach ($m in [regex]::matches($code, $pattern)) {
- $maybeFlagOffs = $BC::toUInt32($bytes, $searchBase +
- $m.groups['flag'].index/3)
- $diff = [Math]::abs($maybeFlagOffs - $flagOffs)
- if ($diff % 256 -eq 0 -and $diff -lt $minDiff) {
- $minDiff = $diff
- $chanpos = $searchBase + $m.groups['channel'].index/3 + 2
- }
- }
- }
- $chanpos
- }
- $searchBase = [int]($codesize/2)
- foreach ($pass in 1..2) {
- if ($centbrowser) { break }
- $code = $BC::ToString($bytes, $searchBase, $codesize - $searchBase)
- $chanpos = if ($is64) { patch64 } else { patch86 }
- if ($chanpos) { break }
- $codesize = $searchBase
- $searchBase = 0
- }
- if ($chanpos) {
- $bytes[$chanpos] = 9
- "`tPATCHED Chrome release channel restriction"
- } elseif (!$centbrowser) {
- write-host -f red "`tUnable to find the channel code, try updating me"
- write-host -f red "`thttp://stackoverflow.com/a/30361260"
- return
- }
- "`tWriting to a temporary dll..."
- [IO.File]::WriteAllBytes("$dll.new",$bytes)
- "`tBacking up the original dll..."
- move -literal $dll "$dll.bak" -force
- "`tRenaming the temporary dll as the original dll..."
- move -literal "$dll.new" $dll -force
- write-host -f green "`tDONE.`n"
- [GC]::Collect()
- }
- main
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