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Bramburn/refactor/cline provider.ts/002 #2602

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020207e
♻️ refactor(webview): move webview HTML generation to WebviewHTMLManager
bramburn Apr 11, 2025
c4807b9
Merge branch 'main' of https://github.com/RooVetGit/Roo-Code into bra…
bramburn Apr 14, 2025
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192 changes: 6 additions & 186 deletions src/core/webview/ClineProvider.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ import { supportPrompt } from "../../shared/support-prompt"
import { GlobalFileNames } from "../../shared/globalFileNames"
import { HistoryItem } from "../../shared/HistoryItem"
import { ExtensionMessage } from "../../shared/ExtensionMessage"
import { Mode, PromptComponent, defaultModeSlug, getModeBySlug, getGroupName } from "../../shared/modes"
import { Mode, PromptComponent, defaultModeSlug } from "../../shared/modes"
import { experimentDefault } from "../../shared/experiments"
import { formatLanguage } from "../../shared/language"
import { Terminal, TERMINAL_SHELL_INTEGRATION_TIMEOUT } from "../../integrations/terminal/Terminal"
Expand All @@ -47,8 +47,7 @@ import { CustomModesManager } from "../config/CustomModesManager"
import { buildApiHandler } from "../../api"
import { ACTION_NAMES } from "../CodeActionProvider"
import { Cline, ClineOptions } from "../Cline"
import { getNonce } from "./getNonce"
import { getUri } from "./getUri"
import { WebviewHTMLManager } from "./WebviewHTMLManager"
import { telemetryService } from "../../services/telemetry/TelemetryService"
import { getWorkspacePath } from "../../utils/path"
import { webviewMessageHandler } from "./webviewMessageHandler"
Expand Down Expand Up @@ -82,6 +81,7 @@ export class ClineProvider extends EventEmitter<ClineProviderEvents> implements
public readonly contextProxy: ContextProxy
public readonly providerSettingsManager: ProviderSettingsManager
public readonly customModesManager: CustomModesManager
private readonly webviewHTMLManager: WebviewHTMLManager

constructor(
readonly context: vscode.ExtensionContext,
Expand All @@ -92,6 +92,7 @@ export class ClineProvider extends EventEmitter<ClineProviderEvents> implements

this.log("ClineProvider instantiated")
this.contextProxy = new ContextProxy(context)
this.webviewHTMLManager = new WebviewHTMLManager(this.contextProxy)
ClineProvider.activeInstances.add(this)

// Register this provider with the telemetry service to enable it to add
Expand Down Expand Up @@ -393,8 +394,8 @@ export class ClineProvider extends EventEmitter<ClineProviderEvents> implements

webviewView.webview.html =
this.contextProxy.extensionMode === vscode.ExtensionMode.Development
? await this.getHMRHtmlContent(webviewView.webview)
: this.getHtmlContent(webviewView.webview)
? await this.webviewHTMLManager.getHMRHtmlContent(webviewView.webview)
: this.webviewHTMLManager.getHtmlContent(webviewView.webview)

// Sets up an event listener to listen for messages passed from the webview view context
// and executes code based on the message that is recieved
Expand Down Expand Up @@ -597,187 +598,6 @@ export class ClineProvider extends EventEmitter<ClineProviderEvents> implements
await this.view?.webview.postMessage(message)
}

private async getHMRHtmlContent(webview: vscode.Webview): Promise<string> {
// Try to read the port from the file
let localPort = "5173" // Default fallback
try {
const fs = require("fs")
const path = require("path")
const portFilePath = path.resolve(__dirname, "../.vite-port")

if (fs.existsSync(portFilePath)) {
localPort = fs.readFileSync(portFilePath, "utf8").trim()
console.log(`[ClineProvider:Vite] Using Vite server port from ${portFilePath}: ${localPort}`)
} else {
console.log(
`[ClineProvider:Vite] Port file not found at ${portFilePath}, using default port: ${localPort}`,
)
}
} catch (err) {
console.error("[ClineProvider:Vite] Failed to read Vite port file:", err)
// Continue with default port if file reading fails
}

const localServerUrl = `localhost:${localPort}`

// Check if local dev server is running.
try {
await axios.get(`http://${localServerUrl}`)
} catch (error) {
vscode.window.showErrorMessage(t("common:errors.hmr_not_running"))

return this.getHtmlContent(webview)
}

const nonce = getNonce()

const stylesUri = getUri(webview, this.contextProxy.extensionUri, [
"webview-ui",
"build",
"assets",
"index.css",
])

const codiconsUri = getUri(webview, this.contextProxy.extensionUri, [
"node_modules",
"@vscode",
"codicons",
"dist",
"codicon.css",
])

const imagesUri = getUri(webview, this.contextProxy.extensionUri, ["assets", "images"])

const file = "src/index.tsx"
const scriptUri = `http://${localServerUrl}/${file}`

const reactRefresh = /*html*/ `
<script nonce="${nonce}" type="module">
import RefreshRuntime from "http://localhost:${localPort}/@react-refresh"
RefreshRuntime.injectIntoGlobalHook(window)
window.$RefreshReg$ = () => {}
window.$RefreshSig$ = () => (type) => type
window.__vite_plugin_react_preamble_installed__ = true
</script>
`

const csp = [
"default-src 'none'",
`font-src ${webview.cspSource}`,
`style-src ${webview.cspSource} 'unsafe-inline' https://* http://${localServerUrl} http://0.0.0.0:${localPort}`,
`img-src ${webview.cspSource} data:`,
`script-src 'unsafe-eval' ${webview.cspSource} https://* https://*.posthog.com http://${localServerUrl} http://0.0.0.0:${localPort} 'nonce-${nonce}'`,
`connect-src https://* https://*.posthog.com ws://${localServerUrl} ws://0.0.0.0:${localPort} http://${localServerUrl} http://0.0.0.0:${localPort}`,
]

return /*html*/ `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no">
<meta http-equiv="Content-Security-Policy" content="${csp.join("; ")}">
<link rel="stylesheet" type="text/css" href="${stylesUri}">
<link href="${codiconsUri}" rel="stylesheet" />
<script nonce="${nonce}">
window.IMAGES_BASE_URI = "${imagesUri}"
</script>
<title>Roo Code</title>
</head>
<body>
<div id="root"></div>
${reactRefresh}
<script type="module" src="${scriptUri}"></script>
</body>
</html>
`
}

/**
* Defines and returns the HTML that should be rendered within the webview panel.
*
* @remarks This is also the place where references to the React webview build files
* are created and inserted into the webview HTML.
*
* @param webview A reference to the extension webview
* @param extensionUri The URI of the directory containing the extension
* @returns A template string literal containing the HTML that should be
* rendered within the webview panel
*/
private getHtmlContent(webview: vscode.Webview): string {
// Get the local path to main script run in the webview,
// then convert it to a uri we can use in the webview.

// The CSS file from the React build output
const stylesUri = getUri(webview, this.contextProxy.extensionUri, [
"webview-ui",
"build",
"assets",
"index.css",
])
// The JS file from the React build output
const scriptUri = getUri(webview, this.contextProxy.extensionUri, ["webview-ui", "build", "assets", "index.js"])

// The codicon font from the React build output
// https://github.com/microsoft/vscode-extension-samples/blob/main/webview-codicons-sample/src/extension.ts
// we installed this package in the extension so that we can access it how its intended from the extension (the font file is likely bundled in vscode), and we just import the css fileinto our react app we don't have access to it
// don't forget to add font-src ${webview.cspSource};
const codiconsUri = getUri(webview, this.contextProxy.extensionUri, [
"node_modules",
"@vscode",
"codicons",
"dist",
"codicon.css",
])

const imagesUri = getUri(webview, this.contextProxy.extensionUri, ["assets", "images"])

// const scriptUri = webview.asWebviewUri(vscode.Uri.joinPath(this._extensionUri, "assets", "main.js"))

// const styleResetUri = webview.asWebviewUri(vscode.Uri.joinPath(this._extensionUri, "assets", "reset.css"))
// const styleVSCodeUri = webview.asWebviewUri(vscode.Uri.joinPath(this._extensionUri, "assets", "vscode.css"))

// // Same for stylesheet
// const stylesheetUri = webview.asWebviewUri(vscode.Uri.joinPath(this._extensionUri, "assets", "main.css"))

// Use a nonce to only allow a specific script to be run.
/*
content security policy of your webview to only allow scripts that have a specific nonce
create a content security policy meta tag so that only loading scripts with a nonce is allowed
As your extension grows you will likely want to add custom styles, fonts, and/or images to your webview. If you do, you will need to update the content security policy meta tag to explicity allow for these resources. E.g.
<meta http-equiv="Content-Security-Policy" content="default-src 'none'; style-src ${webview.cspSource}; font-src ${webview.cspSource}; img-src ${webview.cspSource} https:; script-src 'nonce-${nonce}';">
- 'unsafe-inline' is required for styles due to vscode-webview-toolkit's dynamic style injection
- since we pass base64 images to the webview, we need to specify img-src ${webview.cspSource} data:;

in meta tag we add nonce attribute: A cryptographic nonce (only used once) to allow scripts. The server must generate a unique nonce value each time it transmits a policy. It is critical to provide a nonce that cannot be guessed as bypassing a resource's policy is otherwise trivial.
*/
const nonce = getNonce()

// Tip: Install the es6-string-html VS Code extension to enable code highlighting below
return /*html*/ `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no">
<meta name="theme-color" content="#000000">
<meta http-equiv="Content-Security-Policy" content="default-src 'none'; font-src ${webview.cspSource}; style-src ${webview.cspSource} 'unsafe-inline'; img-src ${webview.cspSource} data:; script-src 'nonce-${nonce}' https://us-assets.i.posthog.com; connect-src https://openrouter.ai https://api.requesty.ai https://us.i.posthog.com https://us-assets.i.posthog.com;">
<link rel="stylesheet" type="text/css" href="${stylesUri}">
<link href="${codiconsUri}" rel="stylesheet" />
<script nonce="${nonce}">
window.IMAGES_BASE_URI = "${imagesUri}"
</script>
<title>Roo Code</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
<script nonce="${nonce}" type="module" src="${scriptUri}"></script>
</body>
</html>
`
}

/**
* Sets up an event listener to listen for messages passed from the webview context and
* executes code based on the message that is recieved.
Expand Down
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