prevent mixing profiles

[thetathaurus]

prevent mixing of aws profiles

Without this change, the regexp search for the next available token, but don't take profile boundaries (starting with [ ) into consideration.
Assuming target profile is [default] but the [default] profile don't have an aws_session_token, the procedure would take aws_access_key_id is taken from profile [default] but the the aws_session_token from any other profile which leads to an authorization error

[gpotter2]

Thanks for the PR. Could you provide an example of a file that triggered the bug?
If possible, it would be great if you could add a test. You can base the test on this one:

lambda-local/test/test.js

Lines 182 to 213 in ece4389

	describe("# Environment Variables (destroy)", function () {
	var done, err;
	before(function (cb) {
	var lambdalocal = require(lambdalocal_path);
	lambdalocal.setLogger(winston);
	lambdalocal.execute({
	event: require(path.join(__dirname, "./events/test-event.js")),
	lambdaPath: path.join(__dirname, "./functs/test-func.js"),
	lambdaHandler: functionName,
	profilePath: path.join(__dirname, "./other/debug.aws"),
	callbackWaitsForEmptyEventLoop: false,
	timeoutMs: timeoutMs,
	callback: function (_err, _done) {
	err = _err;
	done = _done;
	cb();
	},
	environment: {
	"isnetestlambda": "I should not exist"
	},
	envdestroy: true,
	envfile: path.join(__dirname, "./other/env"),
	verboseLevel: 1
	});
	});
	it("environment should have been deleted", function () {
	assert.equal(("isnetestlambda" in process.env), false);
	});
	it("should contain an awsRequestId different from the first one", function () {
	assert.notEqual(done.context.awsRequestId, firstawsRequestId);
	});
	});

[thetathaurus]

Sure. The following credentials file would result in taking aws_session_token from profile "dev2" and the aws_access_key_id from "default" for the profile "default"

`[default]
aws_access_key_id = DUMMYDUMMYDUMMYDUMMY
aws_secret_access_key = 95d78fgfd976gdummydummy6g78dfz6g87fd6g78

[dev1]
aws_access_key_id = DUMMYDUMMYDUMMYDUMMY
aws_secret_access_key = 95d78fgfd976gdummydummy6g78dfz6g87fd6g78

[dev2]
aws_access_key_id = DUMMYDUMMYDUMMYDUMMY
aws_secret_access_key = 95d78fgfd976gdummydummy6g78dfz6g87fd6g78
aws_session_token = FwoGZXIvYXdzEecaDNAh7gK0W37rBngBiSKEAp3ZyYf4u7gK6E1FhX+uUNwt2XWy3S1G9E5qLD42nW7mJ2kF5fsHez7HUb1EGst1Rx3c2UYTk8oikGnFPX/FUyi6TECYGUjrD7dEbaS4oU3MICi2y46wwfz1J+k1gDC78JyxV3ZUfE5buuyYgnvpcL37bwl0hxMKnnVYsEVg/Ge5Oco7tCB6FbNv67xehwbudtt6AJLi8SYRM5+liW/KU6XOovlXG6FGZIrLrgdvW4BLf5AlKCWBFJFBBZSoGwLWQQ74ZYA5T+b/9KkhSC9lfwLxN53KKE3MqqYCLhMONKc0q6jwF+rJJJHOzuvFlNb3VXH3fzs5lDcX8HYE+yPLl+8g/ny2KJe1hf0FMjLK1RMYmUKQIvyj0E+3fCeN/G6qt00oUBXD3IT71XDbQW34mnE1aktyYpbG7vRHydg4pw==
`

[thetathaurus]

I will check to create a test, but not that experienced in this. May take a while.