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Code Issues Projects Releases Packages Wiki Activity Actions 8

Add:OPF file pulls ASIN and subtitle #1330

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advplyr 2023-01-02 10:47:13 -06:00
parent b1d4e28027
commit 591d8a8ab1
2 changed files with 38 additions and 25 deletions
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39
server/utils/parsers/parseOpfMetadata.js
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@ -3,7 +3,7 @@ const htmlSanitizer = require('../htmlSanitizer')
function parseCreators(metadata) {
if (!metadata['dc:creator']) return null
var creators = metadata['dc:creator']
const creators = metadata['dc:creator']
if (!creators.length) return null
return creators.map(c => {
if (typeof c !== 'object' || !c['$'] || !c['_']) return false
@ -22,15 +22,15 @@ function fetchCreators(creators, role) {
function fetchTagString(metadata, tag) {
if (!metadata[tag] || !metadata[tag].length) return null
var tag = metadata[tag][0]
if (typeof tag !== 'string') return null
return tag
const value = metadata[tag][0]
if (typeof value !== 'string') return null
return value
}
function fetchDate(metadata) {
var date = fetchTagString(metadata, 'dc:date')
const date = fetchTagString(metadata, 'dc:date')
if (!date) return null
var dateSplit = date.split('-')
const dateSplit = date.split('-')
if (!dateSplit.length || dateSplit[0].length !== 4 || isNaN(dateSplit[0])) return null
return dateSplit[0]
}
@ -41,17 +41,28 @@ function fetchPublisher(metadata) {
function fetchISBN(metadata) {
if (!metadata['dc:identifier'] || !metadata['dc:identifier'].length) return null
var identifiers = metadata['dc:identifier']
var isbnObj = identifiers.find(i => i['$'] && i['$']['opf:scheme'] === 'ISBN')
const identifiers = metadata['dc:identifier']
const isbnObj = identifiers.find(i => i['$'] && i['$']['opf:scheme'] === 'ISBN')
return isbnObj ? isbnObj['_'] || null : null
}
function fetchASIN(metadata) {
if (!metadata['dc:identifier'] || !metadata['dc:identifier'].length) return null
const identifiers = metadata['dc:identifier']
const asinObj = identifiers.find(i => i['$'] && i['$']['opf:scheme'] === 'ASIN')
return asinObj ? asinObj['_'] || null : null
}
function fetchTitle(metadata) {
return fetchTagString(metadata, 'dc:title')
}
function fetchSubtitle(metadata) {
return fetchTagString(metadata, 'dc:subtitle')
}
function fetchDescription(metadata) {
var description = fetchTagString(metadata, 'dc:description')
let description = fetchTagString(metadata, 'dc:description')
if (!description) return null
// check if description is HTML or plain text. only plain text allowed
// calibre stores < and > as &lt; and &gt;
@ -79,10 +90,10 @@ function fetchVolumeNumber(metadataMeta) {
}
function fetchNarrators(creators, metadata) {
var narrators = fetchCreators(creators, 'nrt')
const narrators = fetchCreators(creators, 'nrt')
if (typeof metadata.meta == "undefined" || narrators.length) return narrators
try {
var narratorsJSON = JSON.parse(fetchTagString(metadata.meta, "calibre:user_metadata:#narrators").replace(/&quot;/g, '"'))
const narratorsJSON = JSON.parse(fetchTagString(metadata.meta, "calibre:user_metadata:#narrators").replace(/&quot;/g, '"'))
return narratorsJSON["#value#"]
} catch {
return null
@ -100,7 +111,7 @@ function stripPrefix(str) {
}
module.exports.parseOpfMetadataXML = async (xml) => {
var json = await xmlToJSON(xml)
const json = await xmlToJSON(xml)
if (!json) return null
@ -108,7 +119,7 @@ module.exports.parseOpfMetadataXML = async (xml) => {
const packageKey = Object.keys(json).find(key => stripPrefix(key) === 'package')
if (!packageKey) return null
const prefix = packageKey.split(':').shift()
var metadata = prefix ? json[packageKey][`${prefix}:metadata`] || json[packageKey].metadata : json[packageKey].metadata
let metadata = prefix ? json[packageKey][`${prefix}:metadata`] || json[packageKey].metadata : json[packageKey].metadata
if (!metadata) return null
if (Array.isArray(metadata)) {
@ -132,11 +143,13 @@ module.exports.parseOpfMetadataXML = async (xml) => {
const narrators = (fetchNarrators(creators, metadata) || []).filter(nrt => nrt && nrt.trim())
const data = {
title: fetchTitle(metadata),
subtitle: fetchSubtitle(metadata),
authors,
narrators,
publishedYear: fetchDate(metadata),
publisher: fetchPublisher(metadata),
isbn: fetchISBN(metadata),
asin: fetchASIN(metadata),
description: fetchDescription(metadata),
genres: fetchGenres(metadata),
language: fetchLanguage(metadata),