diff --git a/lib/wsapi/interaction_data.js b/lib/wsapi/interaction_data.js
index 629dc55cc28c0de46746aff24db2c3da3f67173d..d3f7573fd5f63a136f7d8a203d82c9e78b296f52 100644
--- a/lib/wsapi/interaction_data.js
+++ b/lib/wsapi/interaction_data.js
@@ -9,7 +9,8 @@ const coarse = require('../coarse_user_agent_parser'),
querystring = require('querystring'),
und = require('underscore'),
urlparse = require('urlparse'),
- wsapi = require('../wsapi.js');
+ wsapi = require('../wsapi.js'),
+ TEN_MIN_IN_MS = 10 * 60 * 1000;
// Accept JSON formatted interaction data and send it to the KPI Backend
@@ -28,12 +29,16 @@ var store = function (kpi_json, cb) {
kpi_resp = function (res) {
logger.debug('KPI Backend responded ' + res.statusCode);
};
- // TODO - timestamp should be client or server side?
- und.each(kpi_json, function (kpi) {
+
+ // Out of concern for the user's privacy, round the server timestamp
+ // off to the nearest 10-minute mark.
+ und.each(kpi_json, function (kpi) { delete kpi.local_timestamp;
if (! kpi.timestamp) {
kpi.timestamp = new Date().getTime();
}
+ kpi.timestamp = kpi.timestamp - (kpi.timestamp % TEN_MIN_IN_MS);
});
+
if (!! config.get('kpi_backend_db_url')) {
var post_data = querystring.stringify({
diff --git a/resources/static/shared/helpers.js b/resources/static/shared/helpers.js
index 7f536f6b61a5ad65e156c14c86f14b239a060648..67278ec086a7de97c5651c83527554f1e5c56a94 100644
--- a/resources/static/shared/helpers.js
+++ b/resources/static/shared/helpers.js
@@ -53,6 +53,16 @@
return url;
}
+ function whitelistFilter(obj, validKeys) {
+ var filtered = {};
+ _.each(_.keys(obj), function(key) {
+ if (_.indexOf(validKeys, key) !== -1) {
+ filtered[key] = obj[key];
+ }
+ });
+ return filtered;
+ }
+
function cancelEvent(callback) {
return function(event) {
event && event.preventDefault();
@@ -112,6 +122,13 @@
*/
toURL: toURL,
+ /**
+ * Filter an object by a whitelist of keys, returning a new object.
+ * @param {object} obj - the object to filter
+ * @param {object} [validKeys] - whitelisted keys
+ */
+ whitelistFilter: whitelistFilter,
+
/**
* Return a function that calls preventDefault on the event and then calls
* the callback with the arguments.
diff --git a/resources/static/shared/models/interaction_data.js b/resources/static/shared/models/interaction_data.js
index d5ad94544acbc97e3712c26c0025caa6eed3cd3f..ed948c2031c398db24092558ee70ae6aa6ba999c 100644
--- a/resources/static/shared/models/interaction_data.js
+++ b/resources/static/shared/models/interaction_data.js
@@ -9,7 +9,8 @@ BrowserID.Models.InteractionData = (function() {
var bid = BrowserID,
storage = bid.getStorage(),
network = bid.Network,
- complete = bid.Helpers.complete;
+ complete = bid.Helpers.complete,
+ whitelistFilter = bid.Helpers.whitelistFilter;
function getInteractionData() {
var interactionData;
@@ -89,7 +90,22 @@ BrowserID.Models.InteractionData = (function() {
// XXX: should we even try to post data if it's larger than some reasonable
// threshold?
if (data && data.length !== 0) {
- network.sendInteractionData(data, function() {
+
+ // Scrub the data we are going to send and let only a set of whitelisted
+ // keys through. This will remove such values as local_timestamp, which
+ // we needed to calculate time offsets in our event stream, but which
+ // could be used to fingerprint users.
+ var filtered = [];
+ _.each(data, function(obj) {
+ filtered.push(whitelistFilter(obj, [
+ 'event_stream',
+ 'lang',
+ 'screen_size',
+ 'sample_rate']
+ ));
+ });
+
+ network.sendInteractionData(filtered, function() {
clearStaged();
complete(oncomplete, true);
}, function(status) {
diff --git a/resources/static/test/cases/shared/helpers.js b/resources/static/test/cases/shared/helpers.js
index c29b406421024f1d23dfbc8ba8b0ab994b4c9a37..04a80eb168d7e5426715a039b307255cb76622d8 100644
--- a/resources/static/test/cases/shared/helpers.js
+++ b/resources/static/test/cases/shared/helpers.js
@@ -104,6 +104,21 @@
equal(url, "https://browserid.org?email=testuser%40testuser.com&status=complete", "correct URL with GET parameters");
});
+ test("whitelistFilter an object", function() {
+ var unfiltered = {
+ 'event_stream': [ ['pie', 6], ['coffee', 19], ['flan', 42] ],
+ 'secret': "ATTACK AT DAWN!",
+ 'location': "Zeta Minor",
+ 'lang': 'auld' };
+
+ var filtered = helpers.whitelistFilter(unfiltered, ['event_stream', 'lang']);
+ equal(typeof filtered.secret, 'undefined', 'non-whitelisted key removed');
+ equal(typeof filtered.location, 'undefined', 'non-whitelisted key removed');
+ equal(filtered.lang, 'auld', 'whitelisted string passed');
+ equal(filtered.event_stream.length, 3, 'whitelisted list passed');
+ equal(filtered.event_stream[2][1], 42, 'whitelisted list elements preserved');
+ });
+
test("simulate log on browser without console - no exception thrown", function() {
var err,
nativeConsole = window.console;
diff --git a/resources/static/test/cases/shared/models/interaction_data.js b/resources/static/test/cases/shared/models/interaction_data.js
index 5454ccfc6e88f1e0a8cd1e250e132521d50192ff..b66ce318adfac786cd8ac04aece3d44d1f69e995 100644
--- a/resources/static/test/cases/shared/models/interaction_data.js
+++ b/resources/static/test/cases/shared/models/interaction_data.js
@@ -23,36 +23,36 @@
});
test("after push, most recently pushed data available through getCurrent, getStaged gets previous data sets", function() {
- model.push({ foo: "bar" });
- equal(model.getCurrent().foo, "bar",
+ model.push({ lang: "foo" });
+ equal(model.getCurrent().lang, "foo",
"after pushing new interaction data, it's returned from .getCurrent()");
equal(model.getStaged().length, 0, "no data is yet staged");
- model.push({ foo: "baz" });
+ model.push({ lang: "bar" });
- equal(model.getCurrent().foo, "baz", "current points to new data set")
+ equal(model.getCurrent().lang, "bar", "current points to new data set")
var staged = model.getStaged();
equal(staged.length, 1, "only one staged item");
- testObjectValuesEqual(staged[0], { foo: "bar" });
+ testObjectValuesEqual(staged[0], { lang: "foo" });
});
test("setCurrent data overwrites current", function() {
model.clearStaged();
- model.push({ foo: "bar" });
- model.setCurrent({ foo: "baz" });
- equal(model.getCurrent().foo, "baz",
+ model.push({ lang: "foo" });
+ model.setCurrent({ lang: "bar" });
+ equal(model.getCurrent().lang, "bar",
"overwriting current interaction data works");
});
test("clearStaged clears staged interaction data but leaves current data unaffected", function() {
- model.push({ foo: "bar" });
- model.push({ foo: "baz" });
+ model.push({ lang: "foo" });
+ model.push({ lang: "bar" });
model.clearStaged();
equal(model.getStaged().length, 0,
"after clearStageding, interaction data is zero length");
- equal(model.getCurrent().foo, "baz",
+ equal(model.getCurrent().lang, "bar",
"after clearStageding, current data is unaffected");
});
@@ -61,7 +61,7 @@
model.stageCurrent();
equal(model.getStaged().length, 0, "no data to staged");
- model.push({ foo: "bar" });
+ model.push({ lang: "foo" });
model.stageCurrent();
equal(model.getStaged().length, 1, "current data staged");
@@ -77,7 +77,7 @@
// desired result - data is purged from staging table
// The first pushed data will become staged.
- model.push({ foo: "bar" });
+ model.push({ lang: "foo" });
model.stageCurrent();
xhr.useResult("throttle");
@@ -87,7 +87,7 @@
// When the interaction_data next completes, this will be the only data
// that is pushed.
- model.push({ foo: "baz" });
+ model.push({ lang: "bar", secret: "Attack at dawn!!!" });
model.stageCurrent();
xhr.useResult("valid");
@@ -97,7 +97,8 @@
previousSessionsData = JSON.parse(request.data).data;
equal(previousSessionsData.length, 1, "sending correct result sets");
- equal(previousSessionsData[0].foo, "baz", "correct data sent");
+ equal(previousSessionsData[0].lang, "bar", "correct data sent");
+ equal(typeof previousSessionsData[0].secret, "undefined", "non-whitelisted valued stripped");
start();
});
});