45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
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var mlib = require('ssb-msgs')
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var ssbref = require('ssb-ref')
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var app = require('./app')
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var mentionRegex =
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exports.regex = /([^A-z0-9_\-\/:]|^)([@%&](amp;)?[A-z0-9\._\-+=\/]*[A-z0-9_\-+=\/])/g
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function shorten (hash) {
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return hash.slice(0, 8) + '..' + hash.slice(-11)
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}
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exports.extract = function (text, cb) {
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app.ssb.patchwork.getIdsByName(function (err, idsByName) {
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if (err)
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return cb(err)
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// collect any mentions
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var match
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var mentions = [], mentionedIds = {}
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while ((match = mentionRegex.exec(text))) {
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var ref = match[2]
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var name = ref.slice(1) // lose the @
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var id = idsByName[name]
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// name conflict? abort
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if (Array.isArray(id))
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return cb({ conflict: true, name: name })
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if (ssbref.isFeedId(id)) {
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// mapped to a valid id?
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if (!(id in mentionedIds))
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mentionedIds[id] = mentions.push({ link: id, name: name }) - 1
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else
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mentions[mentionedIds[id]].name = name // make sure the name is set
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} else if (ssbref.isLink(ref)) {
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// is a valid id?
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if (!(ref in mentionedIds)) {
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mentionedIds[ref] = mentions.push({ link: ref }) - 1
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}
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}
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}
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cb(null, mentions)
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})
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}
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