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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
import { DAPTelemetrySender } from "./DAPTelemetrySender.sys.mjs";
let lazy = {};
ChromeUtils.defineLazyGetter(lazy, "logConsole", function () {
return console.createInstance({
prefix: "DAPVisitCounter",
maxLogLevelPref: "toolkit.telemetry.dap.logLevel",
});
});
ChromeUtils.defineESModuleGetters(lazy, {
AsyncShutdown: "resource://gre/modules/AsyncShutdown.sys.mjs",
NimbusFeatures: "resource://nimbus/ExperimentAPI.sys.mjs",
PlacesUtils: "resource://gre/modules/PlacesUtils.sys.mjs",
setTimeout: "resource://gre/modules/Timer.sys.mjs",
});
export const DAPVisitCounter = new (class {
startup() {
this._asyncShutdownBlocker = async () => {
lazy.logConsole.debug(`Sending on shutdown.`);
await this.send(2 * 1000, "shutdown");
};
lazy.AsyncShutdown.quitApplicationGranted.addBlocker(
"DAPVisitCounter: sending data",
this._asyncShutdownBlocker
);
const listener = events => {
// Even using the event.hidden flag there mayb be some double counting
// here. It would have to be fixed in the Places API.
for (const event of events) {
lazy.logConsole.debug(`Visited: ${event.url}`);
if (event.hidden) {
continue;
}
for (const counter of this.counters) {
for (const pattern of counter.patterns) {
if (pattern.matches(event.url)) {
lazy.logConsole.debug(`${pattern.pattern} matched!`);
counter.count += 1;
}
}
}
}
};
lazy.NimbusFeatures.dapTelemetry.onUpdate(async (event, reason) => {
if (typeof this.counters !== "undefined") {
await this.send(30 * 1000, "nimbus-update");
}
this.initialize_counters();
});
if (typeof this.counters === "undefined") {
this.initialize_counters();
}
lazy.PlacesUtils.observers.addListener(["page-visited"], listener);
lazy.setTimeout(() => this.timed_send(), this.timeout_value());
}
initialize_counters() {
let experiments = lazy.NimbusFeatures.dapTelemetry.getVariable(
"visitCountingExperimentList"
);
this.counters = [];
// This allows two different formats for distributing the URLs for the
// experiment. The experiments get quite large and over 4096 bytes they
// result in a warning (when mirrored in a pref as in this case).
if (Array.isArray(experiments)) {
for (const experiment of experiments) {
let counter = { experiment, count: 0, patterns: [] };
this.counters.push(counter);
for (const url of experiment.urls) {
let mpattern = new MatchPattern(url);
counter.patterns.push(mpattern);
}
}
} else {
for (const [task, urls] of Object.entries(experiments)) {
for (const [idx, url] of urls.entries()) {
const fullUrl = `*://${url}/*`;
this.counters.push({
experiment: {
task_id: task,
task_veclen: 20,
bucket: idx,
},
count: 0,
patterns: [new MatchPattern(fullUrl)],
});
}
}
}
}
async timed_send() {
lazy.logConsole.debug("Sending on timer.");
await this.send(30 * 1000, "periodic");
lazy.setTimeout(() => this.timed_send(), this.timeout_value());
}
timeout_value() {
const MINUTE = 60 * 1000;
return MINUTE * (9 + Math.random() * 2); // 9 - 11 minutes
}
async send(timeout, reason) {
let collected_measurements = new Map();
for (const counter of this.counters) {
if (!collected_measurements.has(counter.experiment.task_id)) {
collected_measurements.set(
counter.experiment.task_id,
new Uint8Array(counter.experiment.task_veclen)
);
}
collected_measurements.get(counter.experiment.task_id)[
counter.experiment.bucket
] = counter.count;
counter.count = 0;
}
let send_promises = [];
for (const [task_id, measurement] of collected_measurements) {
let task = {
id: task_id,
time_precision: 60,
measurement_type: "vecu8",
};
send_promises.push(
DAPTelemetrySender.sendDAPMeasurement(
task,
measurement,
timeout,
reason
)
);
}
await Promise.all(send_promises);
}
show() {
for (const counter of this.counters) {
lazy.logConsole.info(
`Experiment: ${counter.experiment.url} -> ${counter.count}`
);
}
return this.counters;
}
})();
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