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video-uploader
Commit 5e09a2c3 authored by sliao's avatar sliao
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uploader

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Pipeline #465 canceled with stages
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      .gitignore 0 → 100644
      View file @ 5e09a2c3
      tmp/*
      !tmp/ .gitkeep
      uploads/*
      !uploads/ .gitkeep
      .DS_Store
      node_modules
      app.js 0 → 100644
      View file @ 5e09a2c3
      process.env.TMPDIR = 'tmp' // to avoid the EXDEV rename error, see http://stackoverflow.com/q/21071303/76173
      const express = require('express')
      const multipart = require('connect-multiparty')
      const multipartMiddleware = multipart()
      const uploader = require('./uploader-node.js')('tmp')
      const app = express()
      const fs = require('fs')
      // Configure access control allow origin header stuff
      const ACCESS_CONTROLL_ALLOW_ORIGIN = true
      // Host
      // app.use(express.static(__dirname + '/../docs'))
      // Handle uploads through Uploader.js
      app.post('/upload', multipartMiddleware, function (req, res) {
      uploader.post(req, function (status, filename, original_filename, identifier) {
      console.log('POST', status, original_filename, identifier)
      if (ACCESS_CONTROLL_ALLOW_ORIGIN) {
      res.header('Access-Control-Allow-Origin', '*')
      res.header('Access-Control-Allow-Headers', 'content-type')
      }
      if (status === 'done') {
      const s = fs.createWriteStream('./uploads/' + filename)
      s.on('finish', function () {
      res.status(200)
      })
      uploader.write(identifier, s, { end: true })
      } else {
      res.status(/^(partly_done|done)$/.test(status) ? 200 : 500)
      }
      const data = {
      result: true,
      message: ''
      }
      res.send(data)
      })
      })
      app.options('/upload', function (req, res) {
      console.log('OPTIONS')
      if (ACCESS_CONTROLL_ALLOW_ORIGIN) {
      res.header('Access-Control-Allow-Origin', '*')
      res.header('Access-Control-Allow-Headers', 'content-type')
      }
      res.status(200).send()
      })
      // Handle status checks on chunks through Uploader.js
      app.get('/upload', function (req, res) {
      uploader.get(req, function (status, filename, original_filename, identifier) {
      console.log('GET', status)
      if (ACCESS_CONTROLL_ALLOW_ORIGIN) {
      res.header('Access-Control-Allow-Origin', '*')
      }
      if (status == 'found') {
      status = 200
      } else {
      status = 204
      }
      res.status(status).send()
      })
      })
      app.get('/download/:identifier', function (req, res) {
      uploader.write(req.params.identifier, res)
      })
      app.listen(3000, function () {
      console.log('Server started...')
      })
      package-lock.json 0 → 100644
      View file @ 5e09a2c3
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      "name": "server",
      "version": "1.0.0",
      "lockfileVersion": 2,
      "requires": true,
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      "name": "server",
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      "express": "^4.3.1",
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      }
      package.json 0 → 100644
      View file @ 5e09a2c3
      {
      "name": "server",
      "version": "1.0.0",
      "main": "app.js",
      "scripts": {
      "server": "node app.js"
      },
      "dependencies": {
      "connect-multiparty": "^2.2.0",
      "express": "^4.3.1",
      "mv": "^2.1.1"
      }
      }
      uploader-node.js 0 → 100644
      View file @ 5e09a2c3
      var fs = require('fs'),
      path = require('path'),
      util = require('util'),
      mv = require('mv'),
      Stream = require('stream').Stream
      module.exports = function (temporaryFolder) {
      var $ = this
      $.temporaryFolder = temporaryFolder
      $.maxFileSize = null
      $.fileParameterName = 'file'
      try {
      fs.mkdirSync($.temporaryFolder)
      } catch (e) {}
      function cleanIdentifier(identifier) {
      return identifier.replace(/[^0-9A-Za-z_-]/g, '')
      }
      function getChunkFilename(chunkNumber, identifier) {
      // Clean up the identifier
      identifier = cleanIdentifier(identifier)
      // What would the file name be?
      return path.resolve($.temporaryFolder, './uploader-' + identifier + '.' + chunkNumber)
      }
      function validateRequest(chunkNumber, chunkSize, totalSize, identifier, filename, fileSize) {
      // Clean up the identifier
      identifier = cleanIdentifier(identifier)
      // Check if the request is sane
      if (
      chunkNumber == 0 ||
      chunkSize == 0 ||
      totalSize == 0 ||
      identifier.length == 0 ||
      filename.length == 0
      ) {
      return 'non_uploader_request'
      }
      var numberOfChunks = Math.max(Math.floor(totalSize / (chunkSize * 1.0)), 1)
      if (chunkNumber > numberOfChunks) {
      return 'invalid_uploader_request1'
      }
      // Is the file too big?
      if ($.maxFileSize && totalSize > $.maxFileSize) {
      return 'invalid_uploader_request2'
      }
      if (typeof fileSize != 'undefined') {
      if (chunkNumber < numberOfChunks && fileSize != chunkSize) {
      // The chunk in the POST request isn't the correct size
      return 'invalid_uploader_request3'
      }
      if (
      numberOfChunks > 1 &&
      chunkNumber == numberOfChunks &&
      fileSize != (totalSize % chunkSize) + parseInt(chunkSize)
      ) {
      // The chunks in the POST is the last one, and the fil is not the correct size
      return 'invalid_uploader_request4'
      }
      if (numberOfChunks == 1 && fileSize != totalSize) {
      // The file is only a single chunk, and the data size does not fit
      return 'invalid_uploader_request5'
      }
      }
      return 'valid'
      }
      //'found', filename, original_filename, identifier
      //'not_found', null, null, null
      $.get = function (req, callback) {
      var chunkNumber = req.param('chunkNumber', 0)
      var chunkSize = req.param('chunkSize', 0)
      var totalSize = req.param('totalSize', 0)
      var identifier = req.param('identifier', '')
      var filename = req.param('filename', '')
      if (validateRequest(chunkNumber, chunkSize, totalSize, identifier, filename) == 'valid') {
      var chunkFilename = getChunkFilename(chunkNumber, identifier)
      fs.exists(chunkFilename, function (exists) {
      if (exists) {
      callback('found', chunkFilename, filename, identifier)
      } else {
      callback('not_found', null, null, null)
      }
      })
      } else {
      callback('not_found', null, null, null)
      }
      }
      //'partly_done', filename, original_filename, identifier
      //'done', filename, original_filename, identifier
      //'invalid_uploader_request', null, null, null
      //'non_uploader_request', null, null, null
      $.post = function (req, callback) {
      var fields = req.body
      var files = req.files
      var chunkNumber = fields['chunkNumber']
      var chunkSize = fields['chunkSize']
      var totalSize = fields['totalSize']
      var identifier = cleanIdentifier(fields['identifier'])
      var filename = fields['filename']
      if (!files[$.fileParameterName] || !files[$.fileParameterName].size) {
      callback('invalid_uploader_request', null, null, null)
      return
      }
      var original_filename = files[$.fileParameterName]['originalFilename']
      var validation = validateRequest(
      chunkNumber,
      chunkSize,
      totalSize,
      identifier,
      filename,
      files[$.fileParameterName].size
      )
      if (validation == 'valid') {
      var chunkFilename = getChunkFilename(chunkNumber, identifier)
      // Save the chunk (TODO: OVERWRITE)
      mv(files[$.fileParameterName].path, chunkFilename, function (err) {
      if (err) {
      console.error('err:', err)
      }
      // Do we have all the chunks?
      var currentTestChunk = 1
      var numberOfChunks = Math.max(Math.floor(totalSize / (chunkSize * 1.0)), 1)
      var testChunkExists = function () {
      fs.exists(getChunkFilename(currentTestChunk, identifier), function (exists) {
      if (exists) {
      currentTestChunk++
      if (currentTestChunk > numberOfChunks) {
      callback('done', filename, original_filename, identifier)
      } else {
      // Recursion
      testChunkExists()
      }
      } else {
      callback('partly_done', filename, original_filename, identifier)
      }
      })
      }
      testChunkExists()
      })
      } else {
      callback(validation, filename, original_filename, identifier)
      }
      }
      // Pipe chunks directly in to an existsing WritableStream
      // r.write(identifier, response);
      // r.write(identifier, response, {end:false});
      //
      // var stream = fs.createWriteStream(filename);
      // r.write(identifier, stream);
      // stream.on('data', function(data){...});
      // stream.on('finish', function(){...});
      $.write = function (identifier, writableStream, options) {
      options = options || {}
      options.end = typeof options['end'] == 'undefined' ? true : options['end']
      // Iterate over each chunk
      var pipeChunk = function (number) {
      var chunkFilename = getChunkFilename(number, identifier)
      fs.exists(chunkFilename, function (exists) {
      if (exists) {
      // If the chunk with the current number exists,
      // then create a ReadStream from the file
      // and pipe it to the specified writableStream.
      var sourceStream = fs.createReadStream(chunkFilename)
      sourceStream.pipe(writableStream, {
      end: false
      })
      sourceStream.on('end', function () {
      // When the chunk is fully streamed,
      // jump to the next one
      pipeChunk(number + 1)
      })
      } else {
      // When all the chunks have been piped, end the stream
      if (options.end) writableStream.end()
      if (options.onDone) options.onDone()
      }
      })
      }
      pipeChunk(1)
      }
      $.clean = function (identifier, options) {
      options = options || {}
      // Iterate over each chunk
      var pipeChunkRm = function (number) {
      var chunkFilename = getChunkFilename(number, identifier)
      //console.log('removing pipeChunkRm ', number, 'chunkFilename', chunkFilename);
      fs.exists(chunkFilename, function (exists) {
      if (exists) {
      console.log('exist removing ', chunkFilename)
      fs.unlink(chunkFilename, function (err) {
      if (err && options.onError) options.onError(err)
      })
      pipeChunkRm(number + 1)
      } else {
      if (options.onDone) options.onDone()
      }
      })
      }
      pipeChunkRm(1)
      }
      return $
      }
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