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fix(NODE-5260): AWS Lambda metadata detection logic is too permissive #3663

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Merged
merged 7 commits into from
May 10, 2023
Merged

fix(NODE-5260): AWS Lambda metadata detection logic is too permissive #3663

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415af8e
fix(NODE-5260): AWS Lambda metadata detection logic is too permissive
nbbeeken May 8, 2023
6b633bc
non-empty_string
nbbeeken May 9, 2023
af4b167
show env value, add unit test for AWS_EXECUTION_ENV startsWith
nbbeeken May 9, 2023
6baa7bb
only
nbbeeken May 9, 2023
4d6b20c
Merge branch 'main' into NODE-5260-fix-faas-lambda
nbbeeken May 9, 2023
873ed17
tests
nbbeeken May 9, 2023
664e917
rm envValue
nbbeeken May 9, 2023
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3 changes: 2 additions & 1 deletion src/cmap/handshake/client_metadata.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -176,7 +176,8 @@ export function getFAASEnv(): Map<string, string | Int32> | null {
VERCEL_REGION = ''
} = process.env;

const isAWSFaaS = AWS_EXECUTION_ENV.length > 0 || AWS_LAMBDA_RUNTIME_API.length > 0;
const isAWSFaaS =
AWS_EXECUTION_ENV.startsWith('AWS_Lambda_') || AWS_LAMBDA_RUNTIME_API.length > 0;
const isAzureFaaS = FUNCTIONS_WORKER_RUNTIME.length > 0;
const isGCPFaaS = K_SERVICE.length > 0 || FUNCTION_NAME.length > 0;
const isVercelFaaS = VERCEL.length > 0;
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5 changes: 5 additions & 0 deletions test/integration/mongodb-handshake/mongodb-handshake.prose.test.ts
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Expand Up @@ -70,6 +70,11 @@ describe('Handshake Prose Tests', function () {
['AWS_EXECUTION_ENV', 'AWS_Lambda_java8'],
['AWS_LAMBDA_FUNCTION_MEMORY_SIZE', 'big']
]
},
{
expectedProvider: undefined,
context: '8. Invalid - AWS_EXECUTION_ENV does not start with "AWS_Lambda_"',
env: [['AWS_EXECUTION_ENV', 'EC2']]
}
];

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15 changes: 9 additions & 6 deletions test/unit/cmap/handshake/client_metadata.test.ts
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Expand Up @@ -50,6 +50,9 @@ describe('client metadata module', () => {
context(`when ${envVariable} is in the environment`, () => {
before(() => {
process.env[envVariable] = 'non empty string';
if (envVariable === 'AWS_EXECUTION_ENV') {
process.env[envVariable] = 'AWS_Lambda_non empty string';
}
});
after(() => {
delete process.env[envVariable];
Expand All @@ -70,7 +73,7 @@ describe('client metadata module', () => {
context('unrelated environments', () => {
before(() => {
// aws
process.env.AWS_EXECUTION_ENV = 'non-empty-string';
process.env.AWS_EXECUTION_ENV = 'AWS_Lambda_non-empty-string';
// azure
process.env.FUNCTIONS_WORKER_RUNTIME = 'non-empty-string';
});
Expand Down Expand Up @@ -384,15 +387,15 @@ describe('client metadata module', () => {
aws: [
{
context: 'no additional metadata',
env: [['AWS_EXECUTION_ENV', 'non-empty string']],
env: [['AWS_EXECUTION_ENV', 'AWS_Lambda_non-empty string']],
outcome: {
name: 'aws.lambda'
}
},
{
context: 'AWS_REGION provided',
env: [
['AWS_EXECUTION_ENV', 'non-empty string'],
['AWS_EXECUTION_ENV', 'AWS_Lambda_non-empty string'],
['AWS_REGION', 'non-null']
],
outcome: {
Expand All @@ -403,7 +406,7 @@ describe('client metadata module', () => {
{
context: 'AWS_LAMBDA_FUNCTION_MEMORY_SIZE provided',
env: [
['AWS_EXECUTION_ENV', 'non-empty string'],
['AWS_EXECUTION_ENV', 'AWS_Lambda_non-empty string'],
['AWS_LAMBDA_FUNCTION_MEMORY_SIZE', '3']
],
outcome: {
Expand Down Expand Up @@ -526,7 +529,7 @@ describe('client metadata module', () => {
context('when faas region is too large', () => {
beforeEach('1. Omit fields from `env` except `env.name`.', () => {
sinon.stub(process, 'env').get(() => ({
AWS_EXECUTION_ENV: 'iLoveJavaScript',
AWS_EXECUTION_ENV: 'AWS_Lambda_iLoveJavaScript',
AWS_REGION: 'a'.repeat(512)
}));
});
Expand All @@ -543,7 +546,7 @@ describe('client metadata module', () => {
context('release too large', () => {
beforeEach('2. Omit fields from `os` except `os.type`.', () => {
sinon.stub(process, 'env').get(() => ({
AWS_EXECUTION_ENV: 'iLoveJavaScript',
AWS_EXECUTION_ENV: 'AWS_Lambda_iLoveJavaScript',
AWS_REGION: 'abc'
}));
sinon.stub(os, 'release').returns('a'.repeat(512));
Expand Down