Write metadata file option, rate limiting login attempts, generic failed login message

server/utils/nfoGenerator.js

@@ -0,0 +1,91 @@
+const fs = require('fs-extra')
+const Path = require('path')
+const { bytesPretty } = require('./fileUtils')
+const Logger = require('../Logger')
+
+const LEFT_COL_LEN = 25
+
+function sectionHeaderLines(title) {
+  return [title, ''.padEnd(10, '=')]
+}
+
+function generateSection(sectionTitle, sectionData) {
+  var lines = sectionHeaderLines(sectionTitle)
+  for (const key in sectionData) {
+    var line = key.padEnd(LEFT_COL_LEN) + (sectionData[key] || '')
+    lines.push(line)
+  }
+  return lines
+}
+
+async function generate(audiobook, nfoFilename = 'metadata.nfo') {
+  var jsonObj = audiobook.toJSON()
+  var book = jsonObj.book
+
+  var generalSectionData = {
+    'Title': book.title,
+    'Subtitle': book.subtitle,
+    'Author': book.author,
+    'Narrator': book.narrarator,
+    'Series': book.series,
+    'Volume Number': book.volumeNumber,
+    'Publish Year': book.publishYear,
+    'Genre': book.genres ? book.genres.join(', ') : '',
+    'Duration': audiobook.durationPretty,
+    'Chapters': jsonObj.chapters.length
+  }
+
+  if (!book.subtitle) {
+    delete generalSectionData['Subtitle']
+  }
+
+  if (!book.series) {
+    delete generalSectionData['Series']
+    delete generalSectionData['Volume Number']
+  }
+
+  var tracks = audiobook.tracks
+  var audioTrack = tracks.length ? audiobook.tracks[0] : {}
+
+  var totalBitrate = 0
+  var numBitrates = 0
+  for (let i = 0; i < tracks.length; i++) {
+    if (tracks[i].bitRate) {
+      totalBitrate += tracks[i].bitRate
+      numBitrates++
+    }
+  }
+  var averageBitrate = numBitrates ? totalBitrate / numBitrates : 0
+
+  var mediaSectionData = {
+    'Tracks': jsonObj.tracks.length,
+    'Size': audiobook.sizePretty,
+    'Codec': audioTrack.codec,
+    'Ext': audioTrack.ext,
+    'Channels': audioTrack.channels,
+    'Channel Layout': audioTrack.channelLayout,
+    'Average Bitrate': bytesPretty(averageBitrate)
+  }
+
+  var bookSection = generateSection('Book Info', generalSectionData)
+
+  var descriptionSection = null
+  if (book.description) {
+    descriptionSection = sectionHeaderLines('Book Description')
+    descriptionSection.push(book.description)
+  }
+
+  var mediaSection = generateSection('Media Info', mediaSectionData)
+
+  var fullFile = bookSection.join('\n') + '\n\n'
+  if (descriptionSection) fullFile += descriptionSection.join('\n') + '\n\n'
+  fullFile += mediaSection.join('\n')
+
+  var nfoPath = Path.join(audiobook.fullPath, nfoFilename)
+  var relativePath = Path.join(audiobook.path, nfoFilename)
+  return fs.writeFile(nfoPath, fullFile).then(() => relativePath).catch((error) => {
+    Logger.error(`Failed to write nfo file ${error}`)
+    return false
+  })
+}
+module.exports = generate