initial commit

Signed-off-by: ale <ale@manalejandro.com>

back/lib/util.js

@@ -0,0 +1,83 @@
+const constant = require("../constant"),
+    { apex } = require('./apex'),
+    https = require('node:https'),
+    json = 'application/json',
+    urlToId = url => {
+        try {
+            if (typeof new URL(url) === 'object' && url.split('/').length === 5 && url.split('/')[3].length > 0) {
+                return '@' + url.split('/')[4] + '@' + url.split('/')[2]
+            } else {
+                return url
+            }
+        } catch (e) {
+            return url
+        }
+    },
+    sendFederatedMessage = async (id, summary, message, recipient, reply) => {
+        const users = message.split(' ').filter(token => token.startsWith('@') && token.split('@').length === 3)
+            .map(token => `https://${token.split('@')[2]}/users/${token.split('@')[1]}`),
+            mentions = message.split(' ').filter(token => token.startsWith('@') && token.split('@').length === 3)
+                .map(token => { return { type: 'Mention', href: `https://${token.split('@')[2]}/users/${token.split('@')[1]}`, name: `@${token.split('@')[1]}` } }),
+            hashtags = message.split(' ').filter(token => token.startsWith('#'))
+                .map(token => { return { id: `https://${constant.apexdomain}/tags/${token.split('#')[1]}`, name: token } }),
+            images = message.split(' ').filter(token => token.match(/^https?:\/\//i) && token.match(/\.(jpg|png|gif|jpeg|ppm)$/i))
+                .map(token => { return { type: 'Image', url: token } }),
+            audio = message.split(' ').filter(token => token.match(/^https?:\/\//i) && token.match(/\.(mp3|wav|flac)$/i))
+                .map(token => { return { type: 'Audio', url: token } }),
+            video = message.split(' ').filter(token => token.match(/^https?:\/\//i) && token.match(/\.(mp4|flv|avi)$/i))
+                .map(token => { return { type: 'Video', url: token } }),
+            links = message.split(' ').filter(token => token.match(/^https?:\/\//i) && !images.concat(audio).concat(video)
+                .some(link => link.url === token)).map(token => { return { type: 'Link', href: token } }),
+            allusers = users.concat([recipient || (await apex.store.getObject(apex.utils.usernameToIRI(id), true)).followers[0]]),
+            act = await apex.buildActivity('Create', apex.utils.usernameToIRI(id), ['https://www.w3.org/ns/activitystreams#Public'].concat(allusers), {
+                object: {
+                    type: 'Note',
+                    name: `Fediblock Instance`,
+                    summary: summary || null,
+                    content: `<p>${message.replace(/(\b(https?|ftp|file):\/\/([-A-Z0-9+&@#%?=~_|!:,.;]*)([-A-Z0-9+&@#%?/=~_|!:,.;]*))/ig,
+                        '<a href="$1" target="_blank">$3</a>').replace(/\s#(\S+)/g, '<a href="https://mastodon.social/tags/$1">#$1</a>').replace(/\r?\n/g, '<br />')}</p>`,
+                    tag: hashtags.concat(mentions),
+                    attachment: images.concat(links).concat(audio).concat(video),
+                    inReplyTo: reply || null
+                }
+            })
+        act.object[0].id = act.id
+        await apex.addToOutbox(await apex.store.getObject(apex.utils.usernameToIRI(id), true), act)
+    },
+    requestPart = uri => new Promise((resolve, reject) => {
+        try {
+            const data = [],
+                req = https.request(uri, {
+                    headers: {
+                        'User-Agent': constant.agent,
+                        'Content-Type': json
+                    },
+                    signal: AbortSignal.timeout(constant.abort_timeout),
+                }, res => {
+                    res.setEncoding('utf8')
+                    res.headers['Content-Type'] = json
+                    res.on('data', chunk => {
+                        data.push(chunk)
+                    })
+                    res.on('error', error => {
+                        reject(error)
+                    })
+                    res.on('end', () => {
+                        try {
+                            resolve(JSON.parse(data.join('')))
+                        } catch (error) {
+                            reject(error)
+                        }
+                    })
+                })
+            req.on('error', error => {
+                reject(error)
+            })
+            req.end()
+        } catch (error) {
+            reject(error)
+        }
+    })
+
+module.exports = { urlToId, sendFederatedMessage, requestPart }
+