drop.chapril.org-firefoxsend/server/amplitude.js

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const crypto = require('crypto');
const fetch = require('node-fetch');
const config = require('./config');
const pkg = require('../package.json');
const HOUR = 1000 * 60 * 60;
function truncateToHour(timestamp) {
return Math.floor(timestamp / HOUR) * HOUR;
}
function orderOfMagnitude(n) {
return Math.floor(Math.log10(n));
}
function userId(fileId, ownerId) {
const hash = crypto.createHash('sha256');
hash.update(fileId);
hash.update(ownerId);
return hash.digest('hex').substring(32);
}
function statUploadEvent(data) {
const event = {
session_id: -1,
country: data.country,
region: data.state,
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user_id: userId(data.id, data.owner),
app_version: pkg.version,
time: truncateToHour(Date.now()),
event_type: 'server_upload',
user_properties: {
download_limit: data.dlimit,
time_limit: data.timeLimit,
size: orderOfMagnitude(data.size),
anonymous: data.anonymous
},
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event_properties: {
agent: data.agent
},
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event_id: 0
};
return sendBatch([event]);
}
function statDownloadEvent(data) {
const event = {
session_id: -1,
country: data.country,
region: data.state,
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user_id: userId(data.id, data.owner),
app_version: pkg.version,
time: truncateToHour(Date.now()),
event_type: 'server_download',
event_properties: {
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agent: data.agent,
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download_count: data.download_count,
ttl: data.ttl
},
event_id: data.download_count
};
return sendBatch([event]);
}
function statDeleteEvent(data) {
const event = {
session_id: -1,
country: data.country,
region: data.state,
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user_id: userId(data.id, data.owner),
app_version: pkg.version,
time: truncateToHour(Date.now()),
event_type: 'server_delete',
event_properties: {
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agent: data.agent,
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download_count: data.download_count,
ttl: data.ttl
},
event_id: data.download_count + 1
};
return sendBatch([event]);
}
function statReportEvent(data) {
const event = {
session_id: -1,
country: data.country,
region: data.state,
user_id: userId(data.id, data.owner),
app_version: pkg.version,
time: truncateToHour(Date.now()),
event_type: 'server_report',
event_properties: {
reason: data.reason,
agent: data.agent,
download_limit: data.dlimit,
download_count: data.download_count,
ttl: data.ttl
},
event_id: data.download_count + 1
};
return sendBatch([event]);
}
function clientEvent(
event,
ua,
language,
session_id,
deltaT,
platform,
country,
state
) {
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const ep = event.event_properties || {};
const up = event.user_properties || {};
const event_properties = {
browser: ua.browser.name,
browser_version: ua.browser.version,
status: ep.status,
age: ep.age,
downloaded: ep.downloaded,
download_limit: ep.download_limit,
duration: ep.duration,
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entrypoint: ep.entrypoint,
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file_count: ep.file_count,
password_protected: ep.password_protected,
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referrer: ep.referrer,
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size: ep.size,
time_limit: ep.time_limit,
trigger: ep.trigger,
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ttl: ep.ttl,
utm_campaign: ep.utm_campaign,
utm_content: ep.utm_content,
utm_medium: ep.utm_medium,
utm_source: ep.utm_source,
utm_term: ep.utm_term,
experiment: ep.experiment,
variant: ep.variant
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};
const user_properties = {
active_count: up.active_count,
anonymous: up.anonymous,
experiments: up.experiments,
first_action: up.first_action
};
return {
app_version: pkg.version,
country: country,
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device_id: event.device_id,
event_properties,
event_type: event.event_type,
language,
os_name: ua.os.name,
os_version: ua.os.version,
platform,
region: state,
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session_id,
time: event.time + deltaT,
user_id: event.user_id,
user_properties
};
}
async function sendBatch(events, timeout = 1000) {
if (!config.amplitude_id) {
return 200;
}
try {
const result = await fetch('https://api.amplitude.com/batch', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
api_key: config.amplitude_id,
events
}),
timeout
});
return result.status;
} catch (e) {
return 500;
}
}
module.exports = {
statUploadEvent,
statDownloadEvent,
statDeleteEvent,
statReportEvent,
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clientEvent,
sendBatch
};