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Add logging and filtering to the node.js streaming API

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This commit is contained in:
Eugen Rochko 2017-02-02 13:56:14 +01:00
parent 0cfd3188b4
commit 1ee4a17f37
4 changed files with 102 additions and 10 deletions
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1
app/assets/javascripts/components/features/ui/index.jsx
View file

@ -3,7 +3,6 @@ import NotificationsContainer from './containers/notifications_container';
import PureRenderMixin from 'react-addons-pure-render-mixin';
import LoadingBarContainer from './containers/loading_bar_container';
import HomeTimeline from '../home_timeline';
import MentionsTimeline from '../mentions_timeline';
import Compose from '../compose';
import TabsBar from './components/tabs_bar';
import ModalContainer from './containers/modal_container';

2
package.json
View file

@ -25,6 +25,7 @@
"emojione": "latest",
"enzyme": "^2.4.1",
"es6-promise": "^3.2.1",
"eventsource": "^0.2.1",
"express": "^4.14.1",
"http-link-header": "^0.5.0",
"immutable": "^3.8.1",
@ -32,6 +33,7 @@
"jsdom": "^9.6.0",
"mocha": "^3.1.1",
"node-sass": "^4.0.0",
"npmlog": "^4.0.2",
"pg": "^6.1.2",
"react": "^15.3.2",
"react-addons-perf": "^15.3.2",

55
streaming/index.js
View file

@ -2,6 +2,7 @@ import dotenv from 'dotenv'
import express from 'express'
import redis from 'redis'
import pg from 'pg'
import log from 'npmlog'
dotenv.config()
@ -40,6 +41,7 @@ const authenticationMiddleware = (req, res, next) => {
pgPool.connect((err, client, done) => {
if (err) {
log.error(err)
return next(err)
}
@ -47,6 +49,7 @@ const authenticationMiddleware = (req, res, next) => {
done()
if (err) {
log.error(err)
return next(err)
}
@ -66,10 +69,12 @@ const authenticationMiddleware = (req, res, next) => {
const errorMiddleware = (err, req, res, next) => {
res.writeHead(err.statusCode || 500, { 'Content-Type': 'application/json' })
res.end(JSON.stringify({ error: `${err}` }))
res.end(JSON.stringify({ error: err.statusCode ? `${err}` : 'An unexpected error occured' }))
}
const streamFrom = (id, res) => {
const streamFrom = (id, req, res, needsFiltering = false) => {
log.verbose(`Starting stream from ${id} for ${req.accountId}`)
res.setHeader('Content-Type', 'text/event-stream')
res.setHeader('Transfer-Encoding', 'chunked')
@ -78,11 +83,40 @@ const streamFrom = (id, res) => {
redisClient.on('message', (channel, message) => {
const { event, payload } = JSON.parse(message)
res.write(`event: ${event}\n`)
res.write(`data: ${payload}\n\n`)
if (needsFiltering) {
pgPool.connect((err, client, done) => {
if (err) {
log.error(err)
return
}
const unpackedPayload = JSON.parse(payload)
const targetAccountIds = [unpackedPayload.account.id] + unpackedPayload.mentions.map(item => item.id) + (unpackedPayload.reblog ? unpackedPayload.reblog.account.id : [])
client.query('SELECT target_account_id FROM blocks WHERE account_id = $1 AND target_account_id IN ($2)', [req.accountId, targetAccountIds], (err, result) => {
done()
if (err) {
log.error(err)
return
}
if (result.rows.length > 0) {
return
}
res.write(`event: ${event}\n`)
res.write(`data: ${payload}\n\n`)
})
})
} else {
res.write(`event: ${event}\n`)
res.write(`data: ${payload}\n\n`)
}
})
setInterval(() => res.write('\n'), 15000)
// Heartbeat to keep connection alive
setInterval(() => res.write(':thump\n'), 15000)
redisClient.subscribe(id)
}
@ -90,8 +124,11 @@ const streamFrom = (id, res) => {
app.use(authenticationMiddleware)
app.use(errorMiddleware)
app.get('/api/v1/streaming/user', (req, res) => streamFrom(`timeline:${req.accountId}`, res))
app.get('/api/v1/streaming/public', (_, res) => streamFrom('timeline:public', res))
app.get('/api/v1/streaming/hashtag', (req, res) => streamFrom(`timeline:hashtag:${req.params.tag}`, res))
app.get('/api/v1/streaming/user', (req, res) => streamFrom(`timeline:${req.accountId}`, req, res))
app.get('/api/v1/streaming/public', (req, res) => streamFrom('timeline:public', req, res, true))
app.get('/api/v1/streaming/hashtag', (req, res) => streamFrom(`timeline:hashtag:${req.params.tag}`, req, res, true))
app.listen(4000)
log.level = 'verbose'
log.info(`Starting HTTP server on port ${process.env.PORT || 4000}`)
app.listen(process.env.PORT || 4000)

54
yarn.lock
View file

@ -2313,6 +2313,12 @@ events@^1.0.0, events@^1.1.1, events@~1.1.0:
version "1.1.1"
resolved "https://registry.yarnpkg.com/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
eventsource@^0.2.1:
version "0.2.1"
resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-0.2.1.tgz#662bf85f376e73b5c34c2ee17db566b8419a6232"
dependencies:
original "^1.0.0"
evp_bytestokey@^1.0.0:
version "1.0.0"
resolved "https://registry.yarnpkg.com/evp_bytestokey/-/evp_bytestokey-1.0.0.tgz#497b66ad9fef65cd7c08a6180824ba1476b66e53"
@ -2554,6 +2560,20 @@ gauge@~2.6.0:
strip-ansi "^3.0.1"
wide-align "^1.1.0"
gauge@~2.7.1:
version "2.7.2"
resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.2.tgz#15cecc31b02d05345a5d6b0e171cdb3ad2307774"
dependencies:
aproba "^1.0.3"
console-control-strings "^1.0.0"
has-unicode "^2.0.0"
object-assign "^4.1.0"
signal-exit "^3.0.0"
string-width "^1.0.1"
strip-ansi "^3.0.1"
supports-color "^0.2.0"
wide-align "^1.1.0"
gaze@^1.0.0:
version "1.1.2"
resolved "https://registry.yarnpkg.com/gaze/-/gaze-1.1.2.tgz#847224677adb8870d679257ed3388fdb61e40105"
@ -3797,6 +3817,15 @@ npmlog@4.x, npmlog@^4.0.0:
gauge "~2.6.0"
set-blocking "~2.0.0"
npmlog@^4.0.2:
version "4.0.2"
resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.0.2.tgz#d03950e0e78ce1527ba26d2a7592e9348ac3e75f"
dependencies:
are-we-there-yet "~1.1.2"
console-control-strings "~1.1.0"
gauge "~2.7.1"
set-blocking "~2.0.0"
nth-check@~1.0.1:
version "1.0.1"
resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-1.0.1.tgz#9929acdf628fc2c41098deab82ac580cf149aae4"
@ -3911,6 +3940,12 @@ optionator@^0.8.1:
type-check "~0.3.2"
wordwrap "~1.0.0"
original@^1.0.0:
version "1.0.0"
resolved "https://registry.yarnpkg.com/original/-/original-1.0.0.tgz#9147f93fa1696d04be61e01bd50baeaca656bd3b"
dependencies:
url-parse "1.0.x"
os-browserify@^0.2.0:
version "0.2.1"
resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.2.1.tgz#63fc4ccee5d2d7763d26bbf8601078e6c2e0044f"
@ -4462,6 +4497,10 @@ querystring@0.2.0, querystring@^0.2.0:
version "0.2.0"
resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
querystringify@0.0.x:
version "0.0.4"
resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-0.0.4.tgz#0cf7f84f9463ff0ae51c4c4b142d95be37724d9c"
raf@^3.1.0:
version "3.3.0"
resolved "https://registry.yarnpkg.com/raf/-/raf-3.3.0.tgz#93845eeffc773f8129039f677f80a36044eee2c3"
@ -4937,6 +4976,10 @@ require-main-filename@^1.0.1:
version "1.0.1"
resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
requires-port@1.0.x:
version "1.0.0"
resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
reselect@^2.5.4:
version "2.5.4"
resolved "https://registry.yarnpkg.com/reselect/-/reselect-2.5.4.tgz#b7d23fdf00b83fa7ad0279546f8dbbbd765c7047"
@ -5349,6 +5392,10 @@ supports-color@3.1.2, supports-color@^3.1.0, supports-color@^3.1.2:
dependencies:
has-flag "^1.0.0"
supports-color@^0.2.0:
version "0.2.0"
resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-0.2.0.tgz#d92de2694eb3f67323973d7ae3d8b55b4c22190a"
supports-color@^2.0.0:
version "2.0.0"
resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
@ -5538,6 +5585,13 @@ url-loader@^0.5.7:
loader-utils "0.2.x"
mime "1.2.x"
url-parse@1.0.x:
version "1.0.5"
resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.0.5.tgz#0854860422afdcfefeb6c965c662d4800169927b"
dependencies:
querystringify "0.0.x"
requires-port "1.0.x"
url@^0.11.0, url@~0.11.0:
version "0.11.0"
resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"