262 lines
8.7 KiB
JavaScript
262 lines
8.7 KiB
JavaScript
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let servers
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module.exports = async (client, apex, app) => {
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const util = require('./util')(apex),
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constant = require('./constant'),
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https = require('https'),
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schedule = require('node-schedule'),
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workers = constant.workers,
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getAccount = api => {
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if (api && api.contact_account.acct) {
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const acct = api.contact_account.acct.split('@')
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if (acct.length > 1) {
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return `https://${acct[1]}/users/${acct[0]}`
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} else {
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return `https://${api.uri.replace(/https?:\/\//, '')}/users/${acct.join('')}`
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}
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} else {
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return ''
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}
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},
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requestPart = async uri => {
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const ac = new AbortController()
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try {
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setTimeout(() => {
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ac.abort()
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}, 5000)
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const response = await fetch(uri, {
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headers: { 'User-Agent': constant.agent },
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agent: new https.Agent({
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rejectUnauthorized: false,
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keepAlive: false
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}),
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signal: ac.signal,
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keepalive: false,
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timeout: 4000
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}),
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json = await response.json()
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setImmediate(() => { ac.abort() })
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return json
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} catch (e) {
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setImmediate(() => { ac.abort() })
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// console.error(e)
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return
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}
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},
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scanInstance = async instance => {
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try {
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const json = await requestPart(`https://${instance}/api/v1/instance/domain_blocks`)
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if (Array.isArray(json) && json.length > 0) {
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const result = await client.search({
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index: constant.index,
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size: 1,
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query: {
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term: {
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instance: instance
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}
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}
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}),
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instancelocated = result.hits && result.hits.hits ? result.hits.hits : [],
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blocks = json.map(block => {
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if (block.comment && block.comment.length > 8190) {
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block.comment = block.comment.slice(0, 8190)
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}
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return block
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}),
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[api, nodeinfo, peers] = await Promise.all([
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requestPart(`https://${instance}/api/v1/instance`),
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requestPart(`https://${instance}/nodeinfo/2.0`),
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requestPart(`https://${instance}/api/v1/instance/peers`)
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])
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if (instancelocated.length === 0) {
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await client.index({
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index: constant.index,
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body: {
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instance,
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api,
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nodeinfo,
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blocks,
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peers,
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last: new Date()
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}
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})
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app.locals.created++
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return await util.sendFederatedMessage(constant.nick, 'New Fediblock Instance', `Fediblock Instance ${instance} with ${json.length} blocks - https://${constant.apexdomain}#${instance}`, getAccount(api))
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} else {
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const elasticinstance = instancelocated[0]._source.blocks || []
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if (Array.isArray(elasticinstance)) {
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if (json.length !== elasticinstance.length
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|| (instancelocated[0]._source.last && instancelocated[0]._source.last < new Date(Date.now() - 2678400000))
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|| !instancelocated[0]._source.api
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|| !instancelocated[0]._source.nodeinfo
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|| !instancelocated[0]._source.peers) {
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await client.update({
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index: constant.index,
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id: instancelocated[0]._id,
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doc: {
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api: api ? api : instancelocated[0]._source.api,
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nodeinfo: nodeinfo ? nodeinfo : instancelocated[0]._source.nodeinfo,
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blocks: blocks && blocks.length > 0 ? blocks : elasticinstance,
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peers: peers && peers.length > 0 ? peers : instancelocated[0]._source.peers,
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last: new Date()
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},
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doc_as_upsert: true
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})
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app.locals.updated++
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if (instancelocated[0]._source.api && instancelocated[0]._source.api.uri && instancelocated[0]._source.api.contact_account && instancelocated[0]._source.api.contact_account.acct) {
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const difference = blocks.filter(block => block.domain && block.domain.trim().length > 0 && !elasticinstance.some(instance => block.domain === instance.domain))
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if (difference.length > 0 && difference.length < 50) {
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return await util.sendFederatedMessage(constant.nick, 'Detected #Fediblock by Fediblock Instance', `You blocked new instances: ${difference.map(d => d.domain).join(', ')} - https://${constant.apexdomain}#${instance}`, getAccount(instancelocated[0]._source.api))
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} else {
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return
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}
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} else {
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return
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}
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} else {
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return
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}
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} else {
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return
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}
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}
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} else {
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return
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}
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} catch (e) {
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console.error(e)
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return
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}
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},
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scanPart = async (instancesall, index) => {
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for (const instance of instancesall) {
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try {
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app.locals.scan.emit('data', 'data: ' + (app.locals.scannum > 0 ? '(' + app.locals.scannum-- + ':' + (index + 1) + '): ' + instance : ': ' + instance) + '\n\n')
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app.locals.peers++
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await scanInstance(instance)
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} catch (e) {
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console.error(e)
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}
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}
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global.gc()
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return
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},
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scanIndex = async (server, instancesall) => {
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try {
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const [api, nodeinfo, blocks] = await Promise.all([
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requestPart(`https://${server}/api/v1/instance`),
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requestPart(`https://${server}/nodeinfo/2.0`),
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requestPart(`https://${server}/api/v1/instance/domain_blocks`)
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])
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if (api && typeof api === 'object' && api.version) {
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const result = await client.search({
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index: constant.index,
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size: 1,
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query: {
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term: {
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instance: server
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}
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}
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}),
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instancelocated = result.hits && result.hits.hits ? result.hits.hits : []
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if (instancelocated.length === 0) {
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await client.index({
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index: constant.index,
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body: {
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instance: server,
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peers: instancesall,
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api,
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nodeinfo,
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blocks: blocks && blocks.length > 0 ? blocks : [],
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last: new Date()
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}
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})
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app.locals.created++
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} else {
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const elasticinstance = instancelocated[0]._source.peers || []
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if (Array.isArray(elasticinstance) && Array.isArray(instancesall) && instancesall.length > 0) {
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if (instancesall.length !== elasticinstance.filter(i => !constant.filterdomains.some(d => i.endsWith(d))).length) {
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await client.update({
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index: constant.index,
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id: instancelocated[0]._id,
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doc: {
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peers: instancesall.length > 0 ? instancesall : elasticinstance,
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api: api ? api : instancelocated[0]._source.api,
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nodeinfo: nodeinfo ? nodeinfo : instancelocated[0]._source.nodeinfo,
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blocks: blocks && blocks.length > 0 ? blocks : instancelocated[0]._source.blocks,
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last: new Date()
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},
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doc_as_upsert: true
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})
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app.locals.updated++
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} else {
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return
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}
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} else {
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return
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}
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}
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} else {
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return
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}
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} catch (e) {
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console.error(e)
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return
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}
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},
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scanReturn = async () => {
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global.gc()
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app.locals.scannum = 0
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if (servers && servers.length > 0) {
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return await scan(servers.shift())
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} else {
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return await scan(constant.initialscan)
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}
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},
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scan = async server => {
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if (server) {
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try {
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console.log(server)
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app.locals.scan.emit('data', 'data: ' + server + ' peers...\n\n')
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const instances = await requestPart(`https://${server}/api/v1/instance/peers`),
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instancesall = Array.isArray(instances) && instances.length > 0
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? instances.filter(i => !constant.filterdomains.some(d => i.endsWith(d)))
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: [],
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instancessorted = instancesall.sort((a, b) => a < b ? -1 : a > b ? 1 : 0),
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parts = [],
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split = workers,
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chunkSize = Math.floor(instancessorted.length / split)
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await scanIndex(server, instancesall)
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if (instancesall.length > 0) {
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if (!servers || servers.length === 0) {
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servers = instancesall.sort(() => Math.random() - 0.5)
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}
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if (server && server === constant.initialscan) {
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return await scan(servers.shift())
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}
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app.locals.scannum = instancessorted.length
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app.locals.scantotal = instancessorted.length
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app.locals.server = server
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app.locals.instances++
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for (let i = 0; i < instancessorted.length; i += chunkSize) {
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const chunk = instancessorted.slice(i, i + chunkSize)
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parts.push(chunk)
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}
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await Promise.all(parts.map(async (p, i) => await scanPart(p, i)))
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return await scanReturn()
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} else {
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return await scanReturn()
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}
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} catch (e) {
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console.error(e)
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return await scanReturn()
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}
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} else {
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return await scanReturn()
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}
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},
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job = schedule.scheduleJob('0 ' + constant.schedule + ' * * *', async () => {
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return await util.sendFederatedMessage(constant.nick, null, 'Scanning ' + app.locals.server + ' instance with ' + app.locals.scantotal + ' peers\nScanned ' + app.locals.peers + ' peers from ' + app.locals.instances + ' instances, ' + app.locals.created + ' created, ' + app.locals.updated + ' updated\nhttps://' + constant.apexdomain)
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})
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return await scanReturn()
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}
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