From 32e864271d76a211d7390e2ab0d2134bd4a991df Mon Sep 17 00:00:00 2001
From: "Namhyeon, Go" <gnh1201@catswords.re.kr>
Date: Sun, 21 Dec 2025 00:23:24 +0900
Subject: [PATCH] Add curl fallback for file downloads in postInstall.ps1

Updated the Download-File function to use curl as a fallback if PowerShell download fails. Also added curl.exe and curl-ca-bundle.crt to the installer in setup.iss to ensure curl is available during installation.
---
 postInstall.ps1 | 25 +++++++++++++++++++++----
 setup.iss       |  2 ++
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/postInstall.ps1 b/postInstall.ps1
index 0aa5aed..55e70ef 100644
--- a/postInstall.ps1
+++ b/postInstall.ps1
@@ -1,6 +1,6 @@
 # WelsonJS post-install script
 # Namhyeon Go <gnh1201@catswords.re.kr>, and Catswords OSS contributors.
-# Updated on: 2025-12-20
+# Updated on: 2025-12-21
 # https://github.com/gnh1201/welsonjs
 
 # ================================
@@ -298,11 +298,9 @@ function Download-File {
         $protocol = [Net.SecurityProtocolType]::Tls12 -bor `
                     [Net.SecurityProtocolType]::Tls11 -bor `
                     [Net.SecurityProtocolType]::Tls
-
         try {
             $protocol = $protocol -bor [Enum]::Parse([Net.SecurityProtocolType], 'Tls13')
         } catch {}
-
         [Net.ServicePointManager]::SecurityProtocol = $protocol
     }
     catch {
@@ -334,7 +332,26 @@ function Download-File {
     }
 
     if (-not $success) {
-        throw "Failed to download $Url after $maxRetries attempts."
+        Write-Host "[WARN] PowerShell download failed. Falling back to curl."
+
+        $curlPath = Join-Path $ScriptRoot "bin\x86\curl.exe"
+        if (-not (Test-Path $curlPath)) {
+            throw "curl not found at $curlPath"
+        }
+
+        $curlArgs = @(
+            "-L"
+            "--fail"
+            "--retry", "3"
+            "--retry-delay", "5"
+            "-o", $DestinationPath
+            $Url
+        )
+
+        $proc = Start-Process -FilePath $curlPath -ArgumentList $curlArgs -NoNewWindow -Wait -PassThru
+        if ($proc.ExitCode -ne 0 -or -not (Test-Path $DestinationPath)) {
+            throw "curl download failed with exit code $($proc.ExitCode)."
+        }
     }
 }
 
diff --git a/setup.iss b/setup.iss
index 258ea6c..c466dc2 100644
--- a/setup.iss
+++ b/setup.iss
@@ -76,6 +76,8 @@ Source: "app\*"; DestDir: "{app}/app"; Flags: ignoreversion recursesubdirs;
 Source: "lib\*"; DestDir: "{app}/lib"; Flags: ignoreversion recursesubdirs;
 ; Source: "bin\*"; Excludes: "installer\*"; DestDir: "{app}/bin"; Flags: ignoreversion recursesubdirs;
 Source: "bin\x86\7zr.exe"; DestDir: "{app}/bin/x86"; Flags: ignoreversion recursesubdirs;
+Source: "bin\x86\curl.exe"; DestDir: "{app}/bin/x86"; Flags: ignoreversion recursesubdirs;
+Source: "bin\x86\curl-ca-bundle.crt"; DestDir: "{app}/bin/x86"; Flags: ignoreversion recursesubdirs;
 Source: "bin\x86\WelsonJS.Launcher.exe"; DestDir: "{app}/bin/x86"; Flags: ignoreversion recursesubdirs;
 Source: "bin\x86\WelsonJS.Launcher.exe.config"; DestDir: "{app}/bin/x86"; Flags: ignoreversion recursesubdirs;
 Source: "data\*"; Excludes: "*-apikey.txt"; DestDir: "{app}/data"; Flags: ignoreversion recursesubdirs;