feat(MCP, Proxy): proxy uv/bun install script (#3621)

* WIP

* refactor(download):  improved socsk proxy download uv/bun

resources/scripts/download.js

@@ -0,0 +1,50 @@
+const { ProxyAgent } = require('undici')
+const { SocksProxyAgent } = require('socks-proxy-agent')
+const https = require('https')
+const fs = require('fs')
+const { pipeline } = require('stream/promises')
+
+/**
+ * Downloads a file from a URL with redirect handling
+ * @param {string} url The URL to download from
+ * @param {string} destinationPath The path to save the file to
+ * @returns {Promise<void>} Promise that resolves when download is complete
+ */
+async function downloadWithRedirects(url, destinationPath) {
+  const proxyUrl = process.env.HTTPS_PROXY || process.env.HTTP_PROXY
+  if (proxyUrl.startsWith('socks')) {
+    const proxyAgent = new SocksProxyAgent(proxyUrl)
+    return new Promise((resolve, reject) => {
+      const request = (url) => {
+        https.get(url, { agent: proxyAgent }, (response) => {
+          if (response.statusCode == 301 || response.statusCode == 302) {
+            request(response.headers.location)
+            return
+          }
+          if (response.statusCode !== 200) {
+            reject(new Error(`Download failed: ${response.statusCode} ${response.statusMessage}`))
+            return
+          }
+          const file = fs.createWriteStream(destinationPath)
+          response.pipe(file)
+          file.on('finish', () => resolve())
+        }).on('error', (err) => {
+          reject(err)
+        })
+      }
+      request(url)
+    })
+  } else {
+    const proxyAgent = new ProxyAgent(proxyUrl)
+    const response = await fetch(url, {
+      dispatcher: proxyAgent
+    })
+    if (!response.ok) {
+      throw new Error(`Download failed: ${response.status} ${response.statusText}`)
+    }
+    const file = fs.createWriteStream(destinationPath)
+    await pipeline(response.body, file)
+  }
+}
+
+module.exports = { downloadWithRedirects }

resources/scripts/install-bun.js

@@ -2,8 +2,8 @@ const fs = require('fs')
 const path = require('path')
 const os = require('os')
 const { execSync } = require('child_process')
-const https = require('https')
 const AdmZip = require('adm-zip')
+const { downloadWithRedirects } = require('./download')
 
 // Base URL for downloading bun binaries
 const BUN_RELEASE_BASE_URL = 'https://github.com/oven-sh/bun/releases/download'
@@ -24,41 +24,6 @@ const BUN_PACKAGES = {
   'linux-musl-arm64': 'bun-linux-aarch64-musl.zip'
 }
 
-/**
- * Downloads a file from a URL with redirect handling
- * @param {string} url The URL to download from
- * @param {string} destinationPath The path to save the file to
- * @returns {Promise<void>}
- */
-async function downloadWithRedirects(url, destinationPath) {
-  return new Promise((resolve, reject) => {
-    const file = fs.createWriteStream(destinationPath)
-    const request = (url) => {
-      https
-        .get(url, (response) => {
-          if (response.statusCode === 302 || response.statusCode === 301) {
-            // Handle redirect
-            request(response.headers.location)
-            return
-          }
-
-          if (response.statusCode !== 200) {
-            reject(new Error(`Failed to download: ${response.statusCode}`))
-            return
-          }
-
-          response.pipe(file)
-          file.on('finish', () => {
-            file.close(resolve)
-          })
-        })
-        .on('error', reject)
-    }
-
-    request(url)
-  })
-}
-
 /**
  * Downloads and extracts the bun binary for the specified platform and architecture
  * @param {string} platform Platform to download for (e.g., 'darwin', 'win32', 'linux')

resources/scripts/install-uv.js

@@ -2,9 +2,9 @@ const fs = require('fs')
 const path = require('path')
 const os = require('os')
 const { execSync } = require('child_process')
-const https = require('https')
 const tar = require('tar')
 const AdmZip = require('adm-zip')
+const { downloadWithRedirects } = require('./download')
 
 // Base URL for downloading uv binaries
 const UV_RELEASE_BASE_URL = 'https://github.com/astral-sh/uv/releases/download'
@@ -32,41 +32,6 @@ const UV_PACKAGES = {
   'linux-musl-armv7l': 'uv-armv7-unknown-linux-musleabihf.tar.gz'
 }
 
-/**
- * Downloads a file from a URL with redirect handling
- * @param {string} url The URL to download from
- * @param {string} destinationPath The path to save the file to
- * @returns {Promise<void>}
- */
-async function downloadWithRedirects(url, destinationPath) {
-  return new Promise((resolve, reject) => {
-    const file = fs.createWriteStream(destinationPath)
-    const request = (url) => {
-      https
-        .get(url, (response) => {
-          if (response.statusCode === 302 || response.statusCode === 301) {
-            // Handle redirect
-            request(response.headers.location)
-            return
-          }
-
-          if (response.statusCode !== 200) {
-            reject(new Error(`Failed to download: ${response.statusCode}`))
-            return
-          }
-
-          response.pipe(file)
-          file.on('finish', () => {
-            file.close(resolve)
-          })
-        })
-        .on('error', reject)
-    }
-
-    request(url)
-  })
-}
-
 /**
  * Downloads and extracts the uv binary for the specified platform and architecture
  * @param {string} platform Platform to download for (e.g., 'darwin', 'win32', 'linux')