Merge branch 'main' into escape-special-chars-in-shell

This commit is contained in:
Sander Declerck 2025-10-23 09:52:38 +02:00
commit 8447d3cac5
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62 changed files with 2212 additions and 4032 deletions

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@ -2,7 +2,7 @@ import { describe, it, beforeEach, afterEach, mock } from "node:test";
import assert from "node:assert";
describe("safeSpawn", () => {
let safeSpawnSync, safeSpawn;
let safeSpawn;
let spawnCalls = [];
beforeEach(async () => {
@ -11,31 +11,30 @@ describe("safeSpawn", () => {
// Mock child_process module to capture what command string gets built
mock.module("child_process", {
namedExports: {
spawnSync: (command, options) => {
spawnCalls.push({ command, options });
return {
status: 0,
stdout: Buffer.from(""),
stderr: Buffer.from(""),
};
},
spawn: (command, options) => {
spawnCalls.push({ command, options });
return {
on: (event, callback) => {
if (event === 'close') {
if (event === "close") {
// Simulate immediate success
setTimeout(() => callback(0), 0);
}
}
},
};
},
execSync: (cmd, opts) => {
// Simulate 'command -v' returning full path
const match = cmd.match(/command -v (.+)/);
if (match) {
return `/usr/bin/${match[1]}\n`;
}
return "";
},
},
});
// Import after mocking
const safeSpawnModule = await import("./safeSpawn.js");
safeSpawnSync = safeSpawnModule.safeSpawnSync;
safeSpawn = safeSpawnModule.safeSpawn;
});
@ -43,76 +42,68 @@ describe("safeSpawn", () => {
mock.reset();
});
// Helper to run either sync or async variant
async function runSafeSpawn(variant, command, args, options) {
if (variant === "sync") {
return safeSpawnSync(command, args, options);
} else {
return await safeSpawn(command, args, options);
}
}
it("should pass basic command and arguments correctly", async () => {
await safeSpawn("echo", ["hello"]);
for (let variant of ["sync", "async"]) {
it(`should pass basic command and arguments correctly (${variant})`, async () => {
await runSafeSpawn(variant, "echo", ["hello"]);
assert.strictEqual(spawnCalls.length, 1);
assert.strictEqual(spawnCalls[0].command, "echo hello");
assert.strictEqual(spawnCalls[0].options.shell, true);
});
assert.strictEqual(spawnCalls.length, 1);
assert.strictEqual(spawnCalls[0].command, "echo hello");
assert.strictEqual(spawnCalls[0].options.shell, true);
});
it("should escape arguments containing spaces", async () => {
await safeSpawn("echo", ["hello world"]);
it(`should escape arguments containing spaces (${variant})`, async () => {
await runSafeSpawn(variant, "echo", ["hello world"]);
assert.strictEqual(spawnCalls.length, 1);
// Argument should be escaped to prevent shell interpretation
assert.strictEqual(spawnCalls[0].command, 'echo "hello world"');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
assert.strictEqual(spawnCalls.length, 1);
// Argument should be escaped to prevent shell interpretation
assert.strictEqual(spawnCalls[0].command, 'echo "hello world"');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
it("should prevent shell injection attacks", async () => {
await safeSpawn("ls", ["; rm test123.txt"]);
it(`should prevent shell injection attacks (${variant})`, async () => {
await runSafeSpawn(variant, "ls", ["; rm test123.txt"]);
assert.strictEqual(spawnCalls.length, 1);
// Malicious command should be escaped to prevent execution
assert.strictEqual(spawnCalls[0].command, 'ls "; rm test123.txt"');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
assert.strictEqual(spawnCalls.length, 1);
// Malicious command should be escaped to prevent execution
assert.strictEqual(spawnCalls[0].command, 'ls "; rm test123.txt"');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
it("should escape single quotes in arguments", async () => {
await safeSpawn("echo", ["don't break"]);
it(`should escape single quotes in arguments (${variant})`, async () => {
await runSafeSpawn(variant, "echo", ["don't break"]);
assert.strictEqual(spawnCalls.length, 1);
// Single quote should be properly escaped with double quotes
assert.strictEqual(spawnCalls[0].command, 'echo "don\'t break"');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
assert.strictEqual(spawnCalls.length, 1);
// Single quote should be properly escaped with double quotes
assert.strictEqual(spawnCalls[0].command, 'echo "don\'t break"');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
it("should handle double quotes with simpler escaping", async () => {
await safeSpawn("echo", ['say "hello"']);
it(`should handle double quotes with simpler escaping (${variant})`, async () => {
await runSafeSpawn(variant, "echo", ['say "hello"']);
assert.strictEqual(spawnCalls.length, 1);
// If we switch to double quotes, this should be: "say \"hello\""
assert.strictEqual(spawnCalls[0].command, 'echo "say \\"hello\\""');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
assert.strictEqual(spawnCalls.length, 1);
// If we switch to double quotes, this should be: "say \"hello\""
assert.strictEqual(spawnCalls[0].command, 'echo "say \\"hello\\""');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
it("should not escape arguments with only safe characters", async () => {
await safeSpawn("npm", ["install", "axios", "--save"]);
it(`should not escape arguments with only safe characters (${variant})`, async () => {
await runSafeSpawn(variant, "npm", ["install", "axios", "--save"]);
assert.strictEqual(spawnCalls.length, 1);
// Safe arguments (alphanumeric, dash, underscore, dot, slash) shouldn't be quoted
assert.strictEqual(spawnCalls[0].command, "npm install axios --save");
assert.strictEqual(spawnCalls[0].options.shell, true);
});
assert.strictEqual(spawnCalls.length, 1);
// Safe arguments (alphanumeric, dash, underscore, dot, slash) shouldn't be quoted
assert.strictEqual(spawnCalls[0].command, "npm install axios --save");
assert.strictEqual(spawnCalls[0].options.shell, true);
});
it(`should escape ampersand character`, async () => {
await safeSpawn("npx", ["cypress", "run", "--env", "password=foo&bar"]);
it(`should escape ampersand character (${variant})`, async () => {
await runSafeSpawn(variant, "npx", ["cypress", "run", "--env", "password=foo&bar"]);
assert.strictEqual(spawnCalls.length, 1);
// & should be escaped by wrapping the arg in quotes
assert.strictEqual(spawnCalls[0].command, 'npx cypress run --env "password=foo&bar"');
assert.strictEqual(spawnCalls[0].options.shell, true);
});
}
});
assert.strictEqual(spawnCalls.length, 1);
// & should be escaped by wrapping the arg in quotes
assert.strictEqual(
spawnCalls[0].command,
'npx cypress run --env "password=foo&bar"'
);
assert.strictEqual(spawnCalls[0].options.shell, true);
});
});