Redact current user from run logs

Co-Authored-By: Paperclip <noreply@paperclip.ing>

server/src/__tests__/log-redaction.test.ts

@@ -0,0 +1,66 @@
+import { describe, expect, it } from "vitest";
+import {
+  CURRENT_USER_REDACTION_TOKEN,
+  redactCurrentUserText,
+  redactCurrentUserValue,
+} from "../log-redaction.js";
+
+describe("log redaction", () => {
+  it("redacts the active username inside home-directory paths", () => {
+    const userName = "paperclipuser";
+    const input = [
+      `cwd=/Users/${userName}/paperclip`,
+      `home=/home/${userName}/workspace`,
+      `win=C:\\Users\\${userName}\\paperclip`,
+    ].join("\n");
+
+    const result = redactCurrentUserText(input, {
+      userNames: [userName],
+      homeDirs: [`/Users/${userName}`, `/home/${userName}`, `C:\\Users\\${userName}`],
+    });
+
+    expect(result).toContain(`cwd=/Users/${CURRENT_USER_REDACTION_TOKEN}/paperclip`);
+    expect(result).toContain(`home=/home/${CURRENT_USER_REDACTION_TOKEN}/workspace`);
+    expect(result).toContain(`win=C:\\Users\\${CURRENT_USER_REDACTION_TOKEN}\\paperclip`);
+    expect(result).not.toContain(userName);
+  });
+
+  it("redacts standalone username mentions without mangling larger tokens", () => {
+    const userName = "paperclipuser";
+    const result = redactCurrentUserText(
+      `user ${userName} said ${userName}/project should stay but apaperclipuserz should not change`,
+      {
+        userNames: [userName],
+        homeDirs: [],
+      },
+    );
+
+    expect(result).toBe(
+      `user ${CURRENT_USER_REDACTION_TOKEN} said ${CURRENT_USER_REDACTION_TOKEN}/project should stay but apaperclipuserz should not change`,
+    );
+  });
+
+  it("recursively redacts nested event payloads", () => {
+    const userName = "paperclipuser";
+    const result = redactCurrentUserValue({
+      cwd: `/Users/${userName}/paperclip`,
+      prompt: `open /Users/${userName}/paperclip/ui`,
+      nested: {
+        author: userName,
+      },
+      values: [userName, `/home/${userName}/project`],
+    }, {
+      userNames: [userName],
+      homeDirs: [`/Users/${userName}`, `/home/${userName}`],
+    });
+
+    expect(result).toEqual({
+      cwd: `/Users/${CURRENT_USER_REDACTION_TOKEN}/paperclip`,
+      prompt: `open /Users/${CURRENT_USER_REDACTION_TOKEN}/paperclip/ui`,
+      nested: {
+        author: CURRENT_USER_REDACTION_TOKEN,
+      },
+      values: [CURRENT_USER_REDACTION_TOKEN, `/home/${CURRENT_USER_REDACTION_TOKEN}/project`],
+    });
+  });
+});