Files
pagerite/frontend/src/analytics/format.js
T
LeoVasanko 09ebc63690 Record response status per path; mark 404 trails red in the viewer
Document GETs now stash their status (200/404) in a pending table,
consumed by the matching ping: visits gain a per-path statuses map and
crawler hits a status field. Trail links with a 404 status render in
red with the status code in the tooltip, alongside the read time.
2026-08-24 19:43:23 +00:00

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JavaScript
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/**
* Formatters and aggregators for summary sections: totals and the recent
* visit trail.
*/
/**
* IPv4 unchanged, IPv6 returns the /64 network prefix in compact form.
* Falls back to the original value when parsing fails.
*/
export const hostIP = (ip) => {
try {
if (!ip || !ip.includes(':')) return ip
const strip = (s) => s.replace(/^\[|\]$/g, '')
const norm = strip(new URL(`http://[${ip}]/`).hostname)
const [l, r] = norm.split('::').map((s) => (s ? s.split(':') : []))
const full = r
? [...l, ...Array(8 - l.length - r.length).fill('0'), ...r]
: l
return strip(
new URL(`http://[${full.slice(0, 4).join(':')}::]/`).hostname,
).replace(/::$/, '')
} catch (e) {
console.error('hostIP processing failed for:', ip, e)
return ip
}
}
function showCopiedFeedback(el) {
if (!el || typeof document === 'undefined') return
const popup = document.createElement('span')
popup.textContent = 'Copied!'
popup.className = 'copy-popup'
popup.style.cssText =
'position:absolute;bottom:calc(100% + 0.25rem);left:50%;' +
'transform:translateX(-50%);padding:0.15rem 0.4rem;' +
'background:var(--text, CanvasText);color:var(--bg, Canvas);' +
'border-radius:0.25rem;font-size:0.75rem;white-space:nowrap;' +
'pointer-events:none;z-index:10;'
el.classList.add('has-copy-popup')
el.appendChild(popup)
setTimeout(() => {
popup.remove()
el.classList.remove('has-copy-popup')
}, 1200)
}
/** Copy the full IP to the clipboard and show a brief "Copied!" popup. */
export async function copyIp(ip, event) {
if (!ip) return
const el = event?.currentTarget
try {
await navigator.clipboard.writeText(ip)
showCopiedFeedback(el)
} catch {
/* ignore */
}
}
/** Copy arbitrary text to the clipboard and show a brief "Copied!" popup. */
export async function copyList(text, event) {
if (!text) return
const el = event?.currentTarget
try {
await navigator.clipboard.writeText(text)
showCopiedFeedback(el)
} catch {
/* ignore */
}
}
/** Total page views across every page and every bucket. */
export function calcTotalViews(views) {
let n = 0
for (const buckets of Object.values(views || {})) {
for (const c of Object.values(buckets)) n += c
}
return n
}
// Very short reads are navigation/skims, not real reading time.
export const MIN_READ_SECONDS = 10
/** Average minutes per visit and average of per-article median read minutes. */
export function calcReadStats(visits) {
const perArticle = {}
let totalVisitSeconds = 0
let visitCount = 0
for (const v of visits || []) {
const secs = Object.values(v.read || {}).filter((s) => s >= MIN_READ_SECONDS)
if (!secs.length) continue
visitCount++
totalVisitSeconds += secs.reduce((a, b) => a + b, 0)
for (const [path, s] of Object.entries(v.read || {})) {
if (s >= MIN_READ_SECONDS) {
; (perArticle[path] || (perArticle[path] = [])).push(s)
}
}
}
const avgMinPerVisit = visitCount
? Math.max(1, Math.round(totalVisitSeconds / visitCount / 60))
: 0
let articleMedianSum = 0
const articleCount = Object.keys(perArticle).length
for (const arr of Object.values(perArticle)) {
arr.sort((a, b) => a - b)
const mid = Math.floor(arr.length / 2)
const median = arr.length % 2 ? arr[mid] : (arr[mid - 1] + arr[mid]) / 2
articleMedianSum += Math.max(MIN_READ_SECONDS, median)
}
const avgArticleMedianMin = articleCount
? Math.max(1, Math.round(articleMedianSum / articleCount / 60))
: 0
return { avgMinPerVisit, avgArticleMedianMin }
}
/** Build a path -> page title lookup from the site tree. */
function buildTitleMap(pageTree) {
const titles = new Map()
const walk = (items) => {
for (const item of items || []) {
titles.set(`/${item.path}`, item.title)
walk(item.children)
}
}
walk(pageTree)
return titles
}
/** Last path segment for display; front page becomes a house icon. */
function slugOf(path) {
return path === '/' ? '🏠︎' : path.split('/').pop()
}
/** Host name of an external https origin, with scheme and www. stripped. */
function externalSlug(origin) {
try {
return new URL(origin).host.replace(/^www\./, '')
} catch {
return origin.replace(/^https?:\/\//, '').replace(/^www\./, '')
}
}
/** Format one trail step: an internal page or an external https origin. */
function stepOf(path, titles) {
if (path?.startsWith('/')) {
return { path, slug: slugOf(path), title: titles.get(path) || '', external: false, home: path === '/' }
}
if (path?.startsWith('https://')) {
return {
path,
slug: externalSlug(path),
title: 'External site',
external: true,
}
}
return null
}
/**
* Human-readable relative timestamp. Adapted from cista-storage: uses
* ``Intl.RelativeTimeFormat`` for short intervals and a compact date for
* anything older than a week.
*/
export function formatWhen(ts, now = Date.now()) {
const date = new Date(ts)
const diff = date.getTime() - now
const adiff = Math.abs(diff)
const formatter = new Intl.RelativeTimeFormat('en', { numeric: 'auto' })
if (adiff <= 5000) return 'now'
if (adiff <= 60000) {
return formatter
.format(Math.round(diff / 1000), 'second')
.replace(' ago', '')
.replaceAll(' ', '\u202F')
}
if (adiff <= 3600000) {
return formatter
.format(Math.round(diff / 60000), 'minute')
.replace('utes', '')
.replace('ute', '')
.replaceAll(' ', '\u202F')
}
if (adiff <= 86400000) {
return formatter
.format(Math.round(diff / 3600000), 'hour')
.replace('hours', 'h')
.replace('hour', 'h')
.replaceAll(' ', '\u202F')
}
if (adiff <= 604800000) {
return formatter
.format(Math.round(diff / 86400000), 'day')
.replaceAll(' ', '\u202F')
}
let d = date
.toLocaleDateString('en-ie', {
weekday: 'short',
year: 'numeric',
month: 'short',
day: 'numeric',
})
.replace('Sept', 'Sep')
if (d.length === 14) d = d.replace(' ', ' \u2007')
d = d.replaceAll(' ', '\u202F').replace('\u202F', '\u00A0')
d = d.slice(0, -4) + d.slice(-2)
return d
}
/** Full UTC timestamp for tooltips, e.g. "2026-08-21 00:20:48 UTC". */
export function formatWhenTooltip(ts) {
return new Date(ts).toISOString().replace('T', ' ').replace('Z', ' UTC')
}
/** Full local timestamp for tooltips, e.g. "21 Aug 2026, 17:38:48". */
export function formatWhenLocal(ts) {
return new Date(ts).toLocaleString('en-ie', {
year: 'numeric',
month: 'short',
day: 'numeric',
hour: '2-digit',
minute: '2-digit',
second: '2-digit',
})
}
/** Preserve locale case with the region/country subtag upper-cased. */
export function formatLang(value) {
if (!value || value === '—') return value
const parts = value.split('-')
if (parts.length > 1) {
parts[parts.length - 1] = parts[parts.length - 1].toUpperCase()
}
return parts.join('-')
}
/** ISO 8601 UTC timestamp without subseconds, e.g. "2026-08-21T00:20:48Z". */
export function formatWhenIso(ts) {
return `${new Date(ts).toISOString().split('.')[0]}Z`
}
/**
* Compact read time for tooltips: "50s" under a minute, "1m23s" otherwise.
*/
export function formatReadTime(seconds) {
if (seconds < 60) return `${seconds}s`
return `${Math.floor(seconds / 60)}m${seconds % 60}s`
}
/**
* Compact visitor counts: plain below 1k, then 1.2k / 10k / 1.2M.
* Truncated, not rounded.
*/
export function formatCount(n) {
if (n < 1000) return String(n)
if (n < 10000) return `${Math.trunc(n / 1000)}.${Math.trunc((n % 1000) / 100)}k`
if (n < 1_000_000) return `${Math.trunc(n / 1000)}k`
return `${Math.trunc(n / 1_000_000)}.${Math.trunc((n % 1_000_000) / 100_000)}M`
}
/**
* Format recent visits for display, newest first. Each step is a linked slug
* pointing to its article; external referers/origins are shown as their
* domain name with the full origin as the link href. The link title shows the
* article heading when known, or "External site" for origins.
*/
export function formatRecentVisits(visits, pageTree, limit = 50) {
const titles = buildTitleMap(pageTree)
return [...visits]
.reverse()
.map((v) => ({
when: new Date(v.start).toLocaleString(),
steps: [v.referer, v.entry, ...(v.trail || [])]
.map((p) => stepOf(p, titles))
.filter(Boolean),
}))
.filter((v) => v.steps.length)
.slice(0, limit)
}
/**
* Count distinct values of a visit field, sorted most-common first.
* Returns an array of [value, count] pairs.
*/
export function countByField(visits, field) {
const counts = {}
for (const v of visits || []) {
const value = v[field]
if (!value) continue
counts[value] = (counts[value] || 0) + 1
}
return Object.entries(counts).sort((a, b) => b[1] - a[1])
}
/**
* Count UTM parameter occurrences across visits. Each distinct
* ``parameter: value`` pair is counted separately. Returns [pair, count].
*/
export function countUtmTags(visits) {
const counts = {}
for (const v of visits || []) {
for (const [key, value] of Object.entries(v.utm || {})) {
const label = `${key}: ${value}`
counts[label] = (counts[label] || 0) + 1
}
}
return Object.entries(counts).sort((a, b) => b[1] - a[1])
}
/** Format a list of [value, count] pairs for inline display. */
export function formatCounts(entries) {
return entries.map(([value, count]) => `${value} (${count})`).join(', ')
}
/**
* Count distinct User-Agent strings among crawler hits, most common first.
* Returns an array of [ua, count] pairs. ``clients`` maps client hashes to
* client records.
*/
export function countCrawlerUas(crawlers, clients) {
const counts = {}
for (const c of crawlers || []) {
const client = (clients || {})[c.client] || {}
const value = client.ua_pretty || client.ua || '(no UA)'
counts[value] = (counts[value] || 0) + 1
}
return Object.entries(counts).sort((a, b) => b[1] - a[1])
}
/**
* Reduce a reverse-DNS hostname to its right-most components that fit
* within ``limit`` characters. This keeps the meaningful main domain
* while avoiding absurdly long subdomains like ``xxx.yyy.zzz...provider.net``.
*/
export function mainDomain(host, limit = 24) {
if (!host) return host
const labels = host.split('.').filter(Boolean)
if (!labels.length) return host
const parts = [labels.pop()]
while (labels.length) {
const next = labels[labels.length - 1]
const candidate = `${next}.${parts.join('.')}`
if (candidate.length > limit) break
parts.unshift(labels.pop())
}
return parts.join('.')
}
/**
* Group raw crawler hits by client hash and format each group as a row showing
* every internal page that crawler visited. Rows are sorted by total hits,
* most active crawler first, rather than by most recent hit.
* ``clients`` maps client hashes to client records.
*/
export function formatCrawlerRows(crawlers, clients, pageTree, now = Date.now()) {
const titles = buildTitleMap(pageTree)
const groups = new Map()
for (const c of crawlers || []) {
const client = (clients || {})[c.client] || {}
const g = groups.get(c.client) || {
clientHash: c.client,
client,
lastStart: 0,
pages: new Map(),
}
const start = new Date(c.start).getTime()
if (start > g.lastStart) g.lastStart = start
if (c.entry?.startsWith('/')) {
const existing = g.pages.get(c.entry) || { count: 0, status: c.status || 200 }
existing.count += 1
if (c.status != null) existing.status = c.status
g.pages.set(c.entry, existing)
}
groups.set(c.client, g)
}
const totalHits = (g) => {
let n = 0
for (const p of g.pages.values()) n += p.count
return n
}
return [...groups.values()]
.sort((a, b) => totalHits(b) - totalHits(a) || b.lastStart - a.lastStart)
.slice(0, 10)
.map((g) => {
const client = g.client || {}
const host = client.host || ''
const isHost = !!host
return {
lastSeen: formatWhen(g.lastStart, now),
lastSeenIso: formatWhenIso(g.lastStart),
lastSeenLocal: formatWhenLocal(g.lastStart),
pages: [...g.pages.entries()]
.sort((a, b) => b[1].count - a[1].count)
.map(([path, info]) => ({ ...stepOf(path, titles), count: info.count, status: info.status })),
ip: client.ip || '',
ipDisplay: isHost ? mainDomain(host) : hostIP(client.ip) || client.ip || '—',
isHost,
ua: client.ua_pretty || client.ua || '—',
uaRaw: client.ua || '',
lang: client.lang || '—',
langDisplay: formatLang(client.lang),
country: client.country || '—',
city: client.city || '—',
total: totalHits(g),
}
})
}
/**
* Group abuse hits by IP and format each group as a row with the full paths
* probed. Identical paths are collapsed into one entry with their hit count.
* Flagged paths (the ones that triggered abuse classification) are lifted to
* the top, followed by other 404s, then document GETs from the abuser. Within
* each category paths are sorted by count descending, then earliest first.
* Rows are sorted by most recent hit first. Visitor metadata comes from the
* latest client hash seen for the IP; ``clientCount`` tells the visitor cell
* how many distinct client variations the IP produced. Paths are shown
* verbatim (query string included), not resolved against the page tree.
* ``clients`` maps client hashes to client records.
*/
export function formatAbuseRows(abuse, clients, now = Date.now()) {
const groups = new Map()
for (const a of abuse || []) {
const client = (clients || {})[a.client] || {}
const ip = client.ip || ''
const g = groups.get(ip) || {
ip,
pathCounts: new Map(),
clientHashes: new Set(),
lastStart: 0,
lastClient: a.client,
}
const start = new Date(a.start).getTime()
if (start > g.lastStart) {
g.lastStart = start
g.lastClient = a.client
}
const path = a.path || ''
const existing = g.pathCounts.get(path) || {
path,
count: 0,
firstStart: start,
flag: a.flag || false,
is_404: a.is_404 || false,
}
existing.count += 1
if (start < existing.firstStart) existing.firstStart = start
if (a.flag) existing.flag = true
if (!a.is_404) existing.is_404 = false
g.pathCounts.set(path, existing)
g.clientHashes.add(a.client)
groups.set(ip, g)
}
const totalHits = (g) => {
let n = 0
for (const p of g.pathCounts.values()) n += p.count
return n
}
return [...groups.values()]
.sort((a, b) => b.lastStart - a.lastStart)
.slice(0, 10)
.map((g) => {
const pathCategory = (p) => (p.flag ? 0 : p.is_404 ? 1 : 2)
const paths = [...g.pathCounts.values()].sort(
(a, b) =>
pathCategory(a) - pathCategory(b) ||
b.count - a.count ||
a.firstStart - b.firstStart,
)
const client = (clients || {})[g.lastClient] || {}
const host = client.host || ''
const isHost = !!host
return {
lastSeen: formatWhen(g.lastStart, now),
lastSeenIso: formatWhenIso(g.lastStart),
lastSeenLocal: formatWhenLocal(g.lastStart),
paths: paths.map((p) => ({
path: p.path,
count: p.count,
flag: p.flag,
is_404: p.is_404,
})),
allPaths: paths
.map((p) => (p.count > 1 ? `${p.count}× ${p.path}` : p.path))
.join('\n'),
clientCount: g.clientHashes.size,
ip: client.ip || g.ip,
ipDisplay: isHost ? mainDomain(host) : hostIP(client.ip || g.ip) || client.ip || g.ip || '—',
isHost,
ua: client.ua_pretty || client.ua || '—',
uaRaw: client.ua || '',
lang: client.lang || '—',
langDisplay: formatLang(client.lang),
country: client.country || '—',
city: client.city || '—',
total: totalHits(g),
}
})
}
/**
* Format raw visit records as rows for a technical table. Returns objects
* with display strings; missing values become "—". ``trail`` starts with the
* external referer (when present), then the entry page and any further internal
* pages or external exit origins. Only the 20 most recent visits are shown.
* ``clients`` maps client hashes to client records.
*/
export function formatVisitRows(visits, clients, pageTree, now = Date.now()) {
const titles = buildTitleMap(pageTree)
return [...(visits || [])].reverse().slice(0, 20).map((v) => {
const client = (clients || {})[v.client] || {}
const read = v.read || {}
const statuses = v.statuses || {}
const trail = [v.entry, ...(v.trail || [])]
.map((p) => {
const step = stepOf(p, titles)
if (step) {
if (read[p]) step.readSeconds = read[p]
if (statuses[p]) step.status = statuses[p]
}
return step
})
.filter(Boolean)
const utmKeys = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content']
const utmValues = utmKeys.map((k) => (v.utm || {})[k]).filter(Boolean)
const utm = utmValues.length ? utmValues.join(' · ') : ''
const utmTitle = Object.entries(v.utm || {})
.map(([k, value]) => `${k}=${value}`)
.join(', ')
const dash = (s) => (s || '—')
const host = client.host || ''
const isHost = !!host
return {
lastSeen: formatWhen(v.start, now),
lastSeenIso: formatWhenIso(v.start),
lastSeenLocal: formatWhenLocal(v.start),
langDisplay: formatLang(client.lang),
trail,
refererStep: stepOf(v.referer, titles),
referer: dash(v.referer),
ip: client.ip || '',
ipDisplay: isHost ? mainDomain(host) : hostIP(client.ip) || client.ip || '—',
isHost,
lang: dash(client.lang),
country: dash(client.country),
city: dash(client.city),
ua: client.ua_pretty || client.ua || '—',
uaRaw: client.ua || '',
utm: utm || '—',
utmTitle,
}
})
}