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Remove and replace all note id compression in LZString with base64url

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Signed-off-by: Max Wu <jackymaxj@gmail.com>
This commit is contained in:
Max Wu 2018-02-26 16:43:29 +08:00
parent 912cce2b40
commit baa0418fb5
4 changed files with 34 additions and 8 deletions
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27
lib/models/note.js
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@ -3,6 +3,7 @@
var fs = require('fs')
var path = require('path')
var LZString = require('lz-string')
var base64url = require('base64url')
var md = require('markdown-it')()
var metaMarked = require('meta-marked')
var cheerio = require('cheerio')
@ -114,6 +115,22 @@ module.exports = function (sequelize, DataTypes) {
return false
}
},
encodeNoteId: function (id) {
// remove dashes in UUID and encode in url-safe base64
return base64url.encode(id.replace(/-/g, ''))
},
decodeNoteId: function (encodedId) {
// decode from url-safe base64
let id = base64url.decode(encodedId)
// add dashes between the UUID string parts
let idParts = []
idParts.push(id.substr(0, 8))
idParts.push(id.substr(8, 4))
idParts.push(id.substr(12, 4))
idParts.push(id.substr(16, 4))
idParts.push(id.substr(20, 12))
return idParts.join('-')
},
checkNoteIdValid: function (id) {
var uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i
var result = id.match(uuidRegex)
@ -190,6 +207,16 @@ module.exports = function (sequelize, DataTypes) {
return _callback(err, null)
})
},
parseNoteIdByBase64Url: function (_callback) {
// try to parse note id by base64url
try {
var id = Note.decodeNoteId(noteId)
if (id && Note.checkNoteIdValid(id)) { return callback(null, id) } else { return _callback(null, null) }
} catch (err) {
return _callback(err, null)
}
},
// parse note id by LZString is deprecated, here for compability
parseNoteIdByLZString: function (_callback) {
// try to parse note id by LZString Base64
try {