Introduce silent mode to disable logging

README.md

@@ -88,6 +88,18 @@ Example usage:
 npm install suspicious-package --safe-chain-malware-action=prompt
 ```
 
+## Logging
+
+You can control the output from Aikido Safe Chain using the `--safe-chain-logging` flag:
+
+- `--safe-chain-logging=silent` - Suppresses all Aikido Safe Chain output except when malware is blocked. The package manager output is written to stdout as normal, and Safe Chain only writes a short message if it has blocked malware and causes the process to exit.
+
+Example usage:
+
+```shell
+npm install express --safe-chain-logging=silent
+```
+
 # Usage in CI/CD
 
 You can protect your CI/CD pipelines from malicious packages by integrating Aikido Safe Chain into your build process. This ensures that any packages installed during your automated builds are checked for malware before installation.

packages/safe-chain/src/config/cliArguments.js

@@ -1,5 +1,6 @@
 const state = {
   malwareAction: undefined,
+  loggingLevel: undefined,
 };
 
 const SAFE_CHAIN_ARG_PREFIX = "--safe-chain-";
@@ -7,6 +8,7 @@ const SAFE_CHAIN_ARG_PREFIX = "--safe-chain-";
 export function initializeCliArguments(args) {
   // Reset state on each call
   state.malwareAction = undefined;
+  state.loggingLevel = undefined;
 
   const safeChainArgs = [];
   const remainingArgs = [];
@@ -20,6 +22,7 @@ export function initializeCliArguments(args) {
   }
 
   setMalwareAction(safeChainArgs);
+  setLoggingLevel(safeChainArgs);
 
   return remainingArgs;
 }
@@ -48,3 +51,17 @@ function getLastArgEqualsValue(args, prefix) {
 export function getMalwareAction() {
   return state.malwareAction;
 }
+
+function setLoggingLevel(args) {
+  const safeChainLoggingArg = SAFE_CHAIN_ARG_PREFIX + "logging=";
+
+  const level = getLastArgEqualsValue(args, safeChainLoggingArg);
+  if (!level) {
+    return;
+  }
+  state.loggingLevel = level.toLowerCase();
+}
+
+export function getLoggingLevel() {
+  return state.loggingLevel;
+}

packages/safe-chain/src/config/cliArguments.spec.js

@@ -1,6 +1,10 @@
 import { describe, it } from "node:test";
 import assert from "node:assert";
-import { initializeCliArguments, getMalwareAction } from "./cliArguments.js";
+import {
+  initializeCliArguments,
+  getMalwareAction,
+  getLoggingLevel,
+} from "./cliArguments.js";
 
 describe("initializeCliArguments", () => {
   it("should return all args when no safe-chain args are present", () => {
@@ -105,4 +109,67 @@ describe("initializeCliArguments", () => {
     assert.deepEqual(result, ["install"]);
     assert.strictEqual(getMalwareAction(), "block");
   });
+
+  it("should not set loggingLevel when no logging argument is passed", () => {
+    const args = ["install", "express", "--save"];
+    initializeCliArguments(args);
+
+    assert.strictEqual(getLoggingLevel(), undefined);
+  });
+
+  it("should parse logging=silent and set state", () => {
+    const args = ["--safe-chain-logging=silent", "install", "package"];
+    const result = initializeCliArguments(args);
+
+    assert.deepEqual(result, ["install", "package"]);
+    assert.strictEqual(getLoggingLevel(), "silent");
+  });
+
+  it("should parse logging=normal and set state", () => {
+    const args = ["--safe-chain-logging=normal", "install", "package"];
+    const result = initializeCliArguments(args);
+
+    assert.deepEqual(result, ["install", "package"]);
+    assert.strictEqual(getLoggingLevel(), "normal");
+  });
+
+  it("should handle multiple logging args, using the last one", () => {
+    const args = [
+      "--safe-chain-logging=normal",
+      "--safe-chain-logging=silent",
+      "install",
+    ];
+    const result = initializeCliArguments(args);
+
+    assert.deepEqual(result, ["install"]);
+    assert.strictEqual(getLoggingLevel(), "silent");
+  });
+
+  it("should handle logging level case-insensitively", () => {
+    const args = ["--safe-chain-logging=SILENT", "install"];
+    initializeCliArguments(args);
+
+    assert.strictEqual(getLoggingLevel(), "silent");
+  });
+
+  it("should capture invalid logging level as-is (lowercased)", () => {
+    const args = ["--safe-chain-logging=invalid", "install"];
+    initializeCliArguments(args);
+
+    assert.strictEqual(getLoggingLevel(), "invalid");
+  });
+
+  it("should handle logging with other safe-chain args", () => {
+    const args = [
+      "--safe-chain-debug",
+      "--safe-chain-logging=silent",
+      "--safe-chain-malware-action=block",
+      "install",
+    ];
+    const result = initializeCliArguments(args);
+
+    assert.deepEqual(result, ["install"]);
+    assert.strictEqual(getLoggingLevel(), "silent");
+    assert.strictEqual(getMalwareAction(), "block");
+  });
 });

packages/safe-chain/src/config/settings.js

@@ -10,5 +10,18 @@ export function getMalwareAction() {
   return MALWARE_ACTION_BLOCK;
 }
 
+export function getLoggingLevel() {
+  const level = cliArguments.getLoggingLevel();
+
+  if (level === LOGGING_SILENT) {
+    return LOGGING_SILENT;
+  }
+
+  return LOGGING_NORMAL;
+}
+
 export const MALWARE_ACTION_BLOCK = "block";
 export const MALWARE_ACTION_PROMPT = "prompt";
+
+export const LOGGING_SILENT = "silent";
+export const LOGGING_NORMAL = "normal";

packages/safe-chain/src/environment/userInteraction.js

@@ -3,16 +3,27 @@ import chalk from "chalk";
 import ora from "ora";
 import { createInterface } from "readline";
 import { isCi } from "./environment.js";
+import { getLoggingLevel, LOGGING_SILENT } from "../config/settings.js";
+
+function isSilentMode() {
+  return getLoggingLevel() === LOGGING_SILENT;
+}
 
 function emptyLine() {
+  if (isSilentMode()) return;
+
   writeInformation("");
 }
 
 function writeInformation(message, ...optionalParams) {
+  if (isSilentMode()) return;
+
   console.log(message, ...optionalParams);
 }
 
 function writeWarning(message, ...optionalParams) {
+  if (isSilentMode()) return;
+
   if (!isCi()) {
     message = chalk.yellow(message);
   }
@@ -26,7 +37,24 @@ function writeError(message, ...optionalParams) {
   console.error(message, ...optionalParams);
 }
 
+function writeExitWithoutInstallingMaliciousPackages() {
+  let message = "Safe-chain: Exiting without installing malicious packages.";
+  if (!isCi()) {
+    message = chalk.red(message);
+  }
+  console.error(message);
+}
+
 function startProcess(message) {
+  if (isSilentMode()) {
+    return {
+      succeed: () => {},
+      fail: () => {},
+      stop: () => {},
+      setText: () => {},
+    };
+  }
+
   if (isCi()) {
     return {
       succeed: (message) => {
@@ -60,7 +88,7 @@ function startProcess(message) {
 }
 
 async function confirm(config) {
-  if (isCi()) {
+  if (isCi() || isSilentMode()) {
     return Promise.resolve(config.default);
   }
 
@@ -91,6 +119,7 @@ export const ui = {
   writeInformation,
   writeWarning,
   writeError,
+  writeExitWithoutInstallingMaliciousPackages,
   emptyLine,
   startProcess,
   confirm,

packages/safe-chain/src/registryProxy/registryProxy.js

@@ -153,7 +153,7 @@ function verifyNoMaliciousPackages() {
   }
 
   ui.emptyLine();
-  ui.writeError("Exiting without installing malicious packages.");
+  ui.writeExitWithoutInstallingMaliciousPackages();
   ui.emptyLine();
 
   return false;

packages/safe-chain/src/scanning/index.js

@@ -93,7 +93,7 @@ async function onMalwareFound() {
     }
   }
 
-  ui.writeError("Exiting without installing malicious packages.");
+  ui.writeExitWithoutInstallingMaliciousPackages();
   ui.emptyLine();
   return 1;
 }