refactor: drop md5 dependency for usernameToColor and migrate to TS

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

Author: susnux

package-lock.json

@@ -94,7 +94,6 @@
     "floating-vue": "^5.2.2",
     "focus-trap": "^7.6.4",
     "linkify-string": "^4.2.0",
-    "md5": "^2.3.0",
     "p-queue": "^8.0.1",
     "rehype-external-links": "^3.0.0",
     "rehype-highlight": "^7.0.2",

package.json

@@ -3,4 +3,4 @@
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
-export { default } from './usernameToColor.js'
+export { usernameToColor as default } from './usernameToColor.js'

src/functions/usernameToColor/index.js renamed to src/functions/usernameToColor/index.ts

@@ -0,0 +1,40 @@
+/**
+ * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+import { GenColors } from '../../utils/GenColors.js'
+
+/**
+ * Create a simple hash from a string
+ * @param str - The string to hash
+ */
+function hashCode(str: string): number {
+	let hash = 0
+
+	if (str.length === 0) {
+		return hash
+	}
+
+	for (let i = 0; i < str.length; i++) {
+	  const chr = str.charCodeAt(i)
+	  hash = ((hash << 5) - hash) + chr
+	  hash |= 0 // 32bit integer
+	}
+
+	return hash
+}
+
+/**
+ * Generate a color from a username
+ *
+ * @param username - Display name or user id to generate from
+ * @return The RGB color
+ */
+export function usernameToColor(username: string): { r: number, g: number, b: number } {
+	const steps = 6
+	const finalPalette = GenColors(steps)
+	const hash = hashCode(username.toLocaleLowerCase())
+
+	return finalPalette[hash % (steps * 3)]
+}

src/functions/usernameToColor/usernameToColor.js

@@ -9,12 +9,11 @@ import { globSync } from 'glob'
 import { join, resolve } from 'node:path'
 import { defineConfig } from 'vite'
 
-import md5 from 'md5'
-
+import crypto from 'node:crypto'
 import l10nPlugin from './build/l10n-plugin.mjs'
 
 const appVersion = JSON.stringify(process.env.npm_package_version || 'nextcloud-vue')
-const versionHash = md5(appVersion).slice(0, 7) as string
+const versionHash = crypto.createHash('md5').update(appVersion).digest('hex').slice(0, 7)
 const SCOPE_VERSION = JSON.stringify(versionHash)
 
 // Entry points which we build using vite