• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• 51
• 52
• 53
• 54
• 55
• 56
• 57
• 58
• 59
• 60
• 61
• 62
• 63
• 64
• 65
• 66
• 67
• 68
• 69
• 70
• 71
• 72
• 73
• 74
• 75
• 76
• 77
• 78
• 79
• 80
• 81
• 82
• 83
• 84
• 85
• 86
• 87
• 88
• 89
• 90
• 91
• 92
• 93
• 94
• 95
• 96
• 97
• 98
• 99
• 100
• 101
• 102
• 103
• 104
• 105
• 106
• 107
• 108
• 109
• 110
• 111
• 112
• 113
• 114
• 115
• 116
• 117
• 118
• 119
• 120
• 121
• 122
• 123
• 124

const express = require('express')
const app = express()
// --------------------------------------------


const shortid = require('shortid')
let Datastore = require('@google-cloud/datastore')
var bodyParser = require('body-parser')
const cors = require('cors')
const ds = Datastore()

//app.use(bodyParser.json({ type: 'application/*+json' }))
app.use(bodyParser.urlencoded())
app.use(cors())



/**
 * Saves a paste into datastore. A paste is an array of objects like
 * {title : 'paste title', content: 'paste content/code' }
 *
 * @param {!express:Request} req HTTP request context.
 * @param {!express:Response} res HTTP response context.
 */


exports.savePaste = async(req, res) => {
  res.set('Access-Control-Allow-Origin', '*');
  if (req.method === 'OPTIONS') {
    // Send response to OPTIONS requests
    res.set('Access-Control-Allow-Methods', '*');
    res.set('Access-Control-Allow-Headers', 'Content-Type');
    res.set('Access-Control-Max-Age', '3600');
    res.status(204).send('');
  } else {
    
  

    let id = shortid.generate()    
    let email = null
    let ip = null
    let privacy = req.body.privacy
    let paste = req.body.paste || []
    let userId = null
    let username = null

  
    res.set('Access-Control-Allow-Origin', "*")
    
    // Validate privacy
    if (!privacy || (privacy && !/^public$|^me$|^link$/.test(privacy)))
    {
      privacy = 'public'
    }    

    console.log(req.body)

    // Validate paste. Paste must:
    // 1. Be an array that is not empty
    // 2. Each itewm in array must be obj
    // 3. Each obj must have a title and content key
    // 4. If title is empty, default to 'untitled'
    // 5. If content is empty, delete entry from paste
    if (Array.isArray(paste))
    {
      if (!paste.length)
      {
        res.send({ result: 0, msg: `Failed. ${req.get('content-type')}`})
        return
      }
      
      paste.map(entry => {
        entry.title = entry.title.trim()
        
        if (!entry.content)
        {        
          return null
        }
        if (!entry.title)
        {
          entry.title = 'untitled'
        }
        return entry
      })      
    }
    
    // Note that index exclusion for arrays (ie, paste) is cloudy.
    // https://github.com/googleapis/nodejs-datastore/issues/14

    let pasteEntity  = {
      key: ds.key(['Paste', id]),
      data: {
        date: Date.now(),
        email: email || null,
        username: username || null,
        ip: null,
        privacy: privacy || 'public',
        paste: paste,
        userId: userId || null
      },
      excludeFromIndexes: [
        'ip',
        'privacy',
        'paste',
        'paste[]',
        'paste[].content',
        'paste[].title',
        'userId'
      ]
    }
    
      
    try
    {
      await ds.insert(pasteEntity)
      res.send({ result: 1, id: id})
    }
    catch (e)
    {
      res.send({ result: 0, msg: 'Failed.'})
    }
  }
}