Updated for JSHint
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andris9
parent
ea226be4c4
commit
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3
README.md
Normal file
3
README.md
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@ -0,0 +1,3 @@
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#epub
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**epub** is a node.js module to parse EPUB electronic book files.
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333
epub.js
333
epub.js
@ -3,11 +3,7 @@ var ZipFile = require("zipfile").ZipFile,
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utillib = require("util"),
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EventEmitter = require('events').EventEmitter;
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//TODO: Cache parsed data to DB
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// export
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module.exports = EPub;
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//TODO: Cache parsed data
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/**
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* new EPub(fname[, imageroot][, linkroot])
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@ -18,10 +14,10 @@ module.exports = EPub;
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* Creates an Event Emitter type object for parsing epub files
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*
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* var epub = new EPub("book.epub");
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* epub.on("end", function(){
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* epub.on("end", function () {
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* console.log(epub.spine);
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* });
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* epub.on("error", function(error){ ... });
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* epub.on("error", function (error) { ... });
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* epub.parse();
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*
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* Image and link URL format is:
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@ -34,15 +30,19 @@ module.exports = EPub;
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*
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* /images/logo_img/OPT/logo.jpg
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**/
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function EPub(fname, imageroot, linkroot){
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function EPub(fname, imageroot, linkroot) {
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EventEmitter.call(this);
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this.filename = fname;
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this.imageroot = (imageroot || "/images/").trim();
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this.linkroot = (linkroot || "/links/").trim();
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if(this.imageroot.substr(-1)!="/")this.imageroot+="/";
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if(this.linkroot.substr(-1)!="/")this.linkroot+="/";
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if (this.imageroot.substr(-1) != "/") {
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this.imageroot += "/";
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}
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if (this.linkroot.substr(-1) != "/") {
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this.linkroot += "/";
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}
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}
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utillib.inherits(EPub, EventEmitter);
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@ -51,7 +51,7 @@ utillib.inherits(EPub, EventEmitter);
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*
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* Starts the parser, needs to be called by the script
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**/
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EPub.prototype.parse = function(){
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EPub.prototype.parse = function () {
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this.containerFile = false;
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this.mimeFile = false;
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@ -59,11 +59,11 @@ EPub.prototype.parse = function(){
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this.metadata = {};
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this.manifest = {};
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this.spine = {toc: false, contents:[]};
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this.spine = {toc: false, contents: []};
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this.toc = [];
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this.open();
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}
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};
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/**
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* EPub#open() -> undefined
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@ -71,21 +71,21 @@ EPub.prototype.parse = function(){
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* Opens the epub file with Zip unpacker, retrieves file listing
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* and runs mime type check
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**/
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EPub.prototype.open = function(){
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try{
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EPub.prototype.open = function () {
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try {
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this.zip = new ZipFile(this.filename);
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}catch(E){
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} catch (E) {
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this.emit("error", new Error("Invalid/missing file"));
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return;
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}
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if(!this.zip.names || !this.zip.names.length){
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if (!this.zip.names || !this.zip.names.length) {
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this.emit("error", new Error("No files in archive"));
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return;
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}
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this.checkMimeType();
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}
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};
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/**
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* EPub#checkMimeType() -> undefined
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@ -93,32 +93,34 @@ EPub.prototype.open = function(){
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* Checks if there's a file called "mimetype" and that it's contents
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* are "application/epub+zip". On success runs root file check.
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**/
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EPub.prototype.checkMimeType = function(){
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for(var i=0, len = this.zip.names.length; i<len; i++){
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if(this.zip.names[i].toLowerCase() == "mimetype"){
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EPub.prototype.checkMimeType = function () {
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var i, len;
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for (i = 0, len = this.zip.names.length; i < len; i++) {
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if (this.zip.names[i].toLowerCase() == "mimetype") {
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this.mimeFile = this.zip.names[i];
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break;
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}
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}
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if(!this.mimeFile){
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if (!this.mimeFile) {
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this.emit("error", new Error("No mimetype file in archive"));
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return;
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}
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this.zip.readFile(this.mimeFile, (function(err, data){
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if(err){
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this.zip.readFile(this.mimeFile, (function (err, data) {
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if (err) {
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this.emit("error", new Error("Reading archive failed"));
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return;
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}
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var txt = data.toString("utf-8").toLowerCase().trim();
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if(txt != "application/epub+zip"){
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if (txt != "application/epub+zip") {
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this.emit("error", new Error("Unsupported mime type"));
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return;
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}
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this.getRootFiles();
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}).bind(this));
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}
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};
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/**
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* EPub#getRootFiles() -> undefined
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@ -127,69 +129,70 @@ EPub.prototype.checkMimeType = function(){
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* rootfile element with mime type "application/oebps-package+xml".
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* On success calls the rootfile parser
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**/
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EPub.prototype.getRootFiles = function(){
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for(var i=0, len = this.zip.names.length; i<len; i++){
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if(this.zip.names[i].toLowerCase() == "meta-inf/container.xml"){
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EPub.prototype.getRootFiles = function () {
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var i, len;
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for (i = 0, len = this.zip.names.length; i < len; i++) {
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if (this.zip.names[i].toLowerCase() == "meta-inf/container.xml") {
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this.containerFile = this.zip.names[i];
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break;
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}
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}
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if(!this.containerFile){
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if (!this.containerFile) {
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this.emit("error", new Error("No container file in archive"));
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return;
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}
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this.zip.readFile(this.containerFile, (function(err, data){
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if(err){
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this.zip.readFile(this.containerFile, (function (err, data) {
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if (err) {
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this.emit("error", new Error("Reading archive failed"));
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return;
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}
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var xml = data.toString("utf-8").toLowerCase().trim(),
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xmlparser = new XML2JS();
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xmlparser.on("end", (function(result){
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xmlparser.on("end", (function (result) {
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if(!result.rootfiles || !result.rootfiles.rootfile){
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if (!result.rootfiles || !result.rootfiles.rootfile) {
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this.emit("error", new Error("No rootfiles found"));
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return;
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}
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var rootfile = result.rootfiles.rootfile,
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filename = false;
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filename = false, i, len;
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if(Array.isArray(rootfile)){
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if (Array.isArray(rootfile)) {
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for(var i=0, len = rootfile.length; i<len; i++){
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if(rootfile[i]["@"]["media-type"] &&
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for (i = 0, len = rootfile.length; i < len; i++) {
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if (rootfile[i]["@"]["media-type"] &&
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rootfile[i]["@"]["media-type"] == "application/oebps-package+xml" &&
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rootfile[i]["@"]["full-path"]){
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rootfile[i]["@"]["full-path"]) {
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filename = rootfile[i]["@"]["full-path"].toLowerCase().trim();
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break;
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}
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}
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}else if(rootfile["@"]){
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if(rootfile["@"]["media-type"] != "application/oebps-package+xml" || !rootfile["@"]["full-path"]){
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} else if (rootfile["@"]) {
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if (rootfile["@"]["media-type"] != "application/oebps-package+xml" || !rootfile["@"]["full-path"]) {
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this.emit("error", new Error("Rootfile in unknown format"));
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return;
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}
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filename = rootfile["@"]["full-path"].toLowerCase().trim();
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}
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if(!filename){
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if (!filename) {
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this.emit("error", new Error("Empty rootfile"));
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return;
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}
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for(var i=0, len = this.zip.names.length; i<len; i++){
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if(this.zip.names[i].toLowerCase() == filename){
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for (i = 0, len = this.zip.names.length; i < len; i++) {
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if (this.zip.names[i].toLowerCase() == filename) {
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this.rootFile = this.zip.names[i];
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break;
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}
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}
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if(!this.rootFile){
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if (!this.rootFile) {
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this.emit("error", new Error("Rootfile not found from archive"));
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return;
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}
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@ -198,7 +201,7 @@ EPub.prototype.getRootFiles = function(){
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}).bind(this));
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xmlparser.on("error", (function(err){
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xmlparser.on("error", (function (err) {
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this.emit("error", new Error("Parsing container XML failed"));
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return;
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}).bind(this));
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@ -207,17 +210,17 @@ EPub.prototype.getRootFiles = function(){
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}).bind(this));
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}
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};
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/**
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* EPub#handleRootFile() -> undefined
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*
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* Parser the rootfile XML and calls rootfile parser
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**/
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EPub.prototype.handleRootFile = function(){
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EPub.prototype.handleRootFile = function () {
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this.zip.readFile(this.rootFile, (function(err, data){
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if(err){
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this.zip.readFile(this.rootFile, (function (err, data) {
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if (err) {
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this.emit("error", new Error("Reading archive failed"));
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return;
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}
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@ -226,7 +229,7 @@ EPub.prototype.handleRootFile = function(){
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xmlparser.on("end", this.parseRootFile.bind(this));
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xmlparser.on("error", (function(err){
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xmlparser.on("error", (function (err) {
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this.emit("error", new Error("Parsing container XML failed"));
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return;
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}).bind(this));
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@ -234,7 +237,7 @@ EPub.prototype.handleRootFile = function(){
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xmlparser.parseString(xml);
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}).bind(this));
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}
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};
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/**
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* EPub#parseRootFile() -> undefined
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@ -242,15 +245,15 @@ EPub.prototype.handleRootFile = function(){
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* Parses elements "metadata," "manifest," "spine" and TOC.
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* Emits "end" if no TOC
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**/
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EPub.prototype.parseRootFile = function(rootfile){
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EPub.prototype.parseRootFile = function (rootfile) {
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var keys, keyparts, key;
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var i, len, keys, keyparts, key;
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keys = Object.keys(rootfile);
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for(var i=0, len = keys.length; i<len; i++){
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for (i = 0, len = keys.length; i < len; i++) {
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keyparts = keys[i].split(":");
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key = (keyparts.pop() || "").toLowerCase().trim();
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switch(key){
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switch (key) {
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case "metadata":
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this.parseMetadata(rootfile[keys[i]]);
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break;
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@ -266,88 +269,89 @@ EPub.prototype.parseRootFile = function(rootfile){
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}
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}
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if(this.spine.toc){
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if (this.spine.toc) {
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this.parseTOC();
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}else
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} else {
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this.emit("end");
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}
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}
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};
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/**
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* EPub#parseMetadata() -> undefined
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*
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* Parses "metadata" block (book metadata, title, author etc.)
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**/
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EPub.prototype.parseMetadata = function(metadata){
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var keys, keyparts, key;
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EPub.prototype.parseMetadata = function (metadata) {
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var i, j, len, keys, keyparts, key;
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keys = Object.keys(metadata);
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for(var i=0, len = keys.length; i<len; i++){
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for (i = 0, len = keys.length; i < len; i++) {
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keyparts = keys[i].split(":");
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key = (keyparts.pop() || "").toLowerCase().trim();
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switch(key){
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switch (key) {
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case "publisher":
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if(Array.isArray(metadata[keys[i]])){
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if (Array.isArray(metadata[keys[i]])) {
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this.metadata.publisher = String(metadata[keys[i]][0] && metadata[keys[i]][0]["#"] || metadata[keys[i]][0] || "").trim();
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}else{
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} else {
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this.metadata.publisher = String(metadata[keys[i]]["#"] || metadata[keys[i]] || "").trim();
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}
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break;
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case "language":
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if(Array.isArray(metadata[keys[i]])){
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if (Array.isArray(metadata[keys[i]])) {
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this.metadata.language = String(metadata[keys[i]][0] && metadata[keys[i]][0]["#"] || metadata[keys[i]][0] || "").toLowerCase().trim();
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}else{
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} else {
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this.metadata.language = String(metadata[keys[i]]["#"] || metadata[keys[i]] || "").toLowerCase().trim();
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}
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break;
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case "title":
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if(Array.isArray(metadata[keys[i]])){
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if (Array.isArray(metadata[keys[i]])) {
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this.metadata.title = String(metadata[keys[i]][0] && metadata[keys[i]][0]["#"] || metadata[keys[i]][0] || "").trim();
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}else{
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} else {
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this.metadata.title = String(metadata[keys[i]]["#"] || metadata[keys[i]] || "").trim();
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}
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break;
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case "subject":
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if(Array.isArray(metadata[keys[i]])){
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if (Array.isArray(metadata[keys[i]])) {
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this.metadata.subject = String(metadata[keys[i]][0] && metadata[keys[i]][0]["#"] || metadata[keys[i]][0] || "").trim();
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}else{
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} else {
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this.metadata.subject = String(metadata[keys[i]]["#"] || metadata[keys[i]] || "").trim();
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}
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break;
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case "description":
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if(Array.isArray(metadata[keys[i]])){
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if (Array.isArray(metadata[keys[i]])) {
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this.metadata.description = String(metadata[keys[i]][0] && metadata[keys[i]][0]["#"] || metadata[keys[i]][0] || "").trim();
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}else{
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} else {
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this.metadata.description = String(metadata[keys[i]]["#"] || metadata[keys[i]] || "").trim();
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}
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break;
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case "creator":
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if(Array.isArray(metadata[keys[i]])){
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if (Array.isArray(metadata[keys[i]])) {
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this.metadata.creator = String(metadata[keys[i]][0] && metadata[keys[i]][0]["#"] || metadata[keys[i]][0] || "").trim();
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this.metadata.creatorFileAs = String(metadata[keys[i]][0] && metadata[keys[i]][0]['@'] && metadata[keys[i]][0]['@']["opf:file-as"] || this.metadata.creator).trim();
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}else{
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} else {
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this.metadata.creator = String(metadata[keys[i]]["#"] || metadata[keys[i]] || "").trim();
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this.metadata.creatorFileAs = String(metadata[keys[i]]['@'] && metadata[keys[i]]['@']["opf:file-as"] || this.metadata.creator).trim();
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}
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break;
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case "date":
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if(Array.isArray(metadata[keys[i]])){
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if (Array.isArray(metadata[keys[i]])) {
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this.metadata.date = String(metadata[keys[i]][0] && metadata[keys[i]][0]["#"] || metadata[keys[i]][0] || "").trim();
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}else{
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} else {
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this.metadata.date = String(metadata[keys[i]]["#"] || metadata[keys[i]] || "").trim();
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}
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break;
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case "identifier":
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if(metadata[keys[i]]["@"] && metadata[keys[i]]["@"]["opf:scheme"]=="ISBN"){
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if (metadata[keys[i]]["@"] && metadata[keys[i]]["@"]["opf:scheme"] == "ISBN") {
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this.metadata.ISBN = String(metadata[keys[i]]["#"] || "").trim();
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}else if(metadata[keys[i]]["@"] && metadata[keys[i]]["@"]["id"] && metadata[keys[i]]["@"]["id"].match(/uuid/i)){
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this.metadata.UUID = String(metadata[keys[i]]["#"] || "").replace('urn:uuid:','').toUpperCase().trim();
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}else if(Array.isArray(metadata[keys[i]])){
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for(var j=0; j<metadata[keys[i]].length; j++){
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if(metadata[keys[i]][j]["@"]){
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if(metadata[keys[i]][j]["@"]["opf:scheme"]=="ISBN"){
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} else if (metadata[keys[i]]["@"] && metadata[keys[i]]["@"].id && metadata[keys[i]]["@"].id.match(/uuid/i)) {
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this.metadata.UUID = String(metadata[keys[i]]["#"] || "").replace('urn:uuid:', '').toUpperCase().trim();
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} else if (Array.isArray(metadata[keys[i]])) {
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for (j = 0; j < metadata[keys[i]].length; j++) {
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if (metadata[keys[i]][j]["@"]) {
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if (metadata[keys[i]][j]["@"]["opf:scheme"] == "ISBN") {
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this.metadata.ISBN = String(metadata[keys[i]][j]["#"] || "").trim();
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}else if(metadata[keys[i]][j]["@"]["id"] && metadata[keys[i]][j]["@"]["id"].match(/uuid/i)){
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this.metadata.UUID = String(metadata[keys[i]][j]["#"] || "").replace('urn:uuid:','').toUpperCase().trim();
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} else if (metadata[keys[i]][j]["@"].id && metadata[keys[i]][j]["@"].id.match(/uuid/i)) {
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this.metadata.UUID = String(metadata[keys[i]][j]["#"] || "").replace('urn:uuid:', '').toUpperCase().trim();
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}
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}
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}
|
||||
@ -355,24 +359,24 @@ EPub.prototype.parseMetadata = function(metadata){
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* EPub#parseManifest() -> undefined
|
||||
*
|
||||
* Parses "manifest" block (all items included, html files, images, styles)
|
||||
**/
|
||||
EPub.prototype.parseManifest = function(manifest){
|
||||
var path = this.rootFile.split("/"), element, path_str;
|
||||
EPub.prototype.parseManifest = function (manifest) {
|
||||
var i, len, path = this.rootFile.split("/"), element, path_str;
|
||||
path.pop();
|
||||
path_str = path.join("/");
|
||||
|
||||
if(manifest.item){
|
||||
for(var i=0, len = manifest.item.length; i<len; i++){
|
||||
if(manifest.item[i]['@']){
|
||||
if (manifest.item) {
|
||||
for (i = 0, len = manifest.item.length; i < len; i++) {
|
||||
if (manifest.item[i]['@']) {
|
||||
element = manifest.item[i]['@'];
|
||||
|
||||
if(element.href && element.href.substr(0, path_str.length) != path_str){
|
||||
if (element.href && element.href.substr(0, path_str.length) != path_str) {
|
||||
element.href = path.concat([element.href]).join("/");
|
||||
}
|
||||
|
||||
@ -381,63 +385,63 @@ EPub.prototype.parseManifest = function(manifest){
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* EPub#parseSpine() -> undefined
|
||||
*
|
||||
* Parses "spine" block (all html elements that are shown to the reader)
|
||||
**/
|
||||
EPub.prototype.parseSpine = function(spine){
|
||||
var path = this.rootFile.split("/"), element, path_s
|
||||
EPub.prototype.parseSpine = function (spine) {
|
||||
var i, len, path = this.rootFile.split("/"), element;
|
||||
path.pop();
|
||||
|
||||
if(spine['@'] && spine['@'].toc){
|
||||
if (spine['@'] && spine['@'].toc) {
|
||||
this.spine.toc = this.manifest[spine['@'].toc] || false;
|
||||
}
|
||||
|
||||
if(spine.itemref){
|
||||
for(var i=0, len = spine.itemref.length; i<len; i++){
|
||||
if(spine.itemref[i]['@']){
|
||||
if(element = this.manifest[spine.itemref[i]['@'].idref]){
|
||||
if (spine.itemref) {
|
||||
for (i = 0, len = spine.itemref.length; i < len; i++) {
|
||||
if (spine.itemref[i]['@']) {
|
||||
if (element = this.manifest[spine.itemref[i]['@'].idref]) {
|
||||
this.spine.contents.push(element);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* EPub#parseTOC() -> undefined
|
||||
*
|
||||
* Parses ncx file for table of contents (title, html file)
|
||||
**/
|
||||
EPub.prototype.parseTOC = function(){
|
||||
var path = this.spine.toc.href.split("/"), id_list = {}, keys;
|
||||
EPub.prototype.parseTOC = function () {
|
||||
var i, len, path = this.spine.toc.href.split("/"), id_list = {}, keys;
|
||||
path.pop();
|
||||
|
||||
keys = Object.keys(this.manifest);
|
||||
for(var i=0, len = keys.length; i<len; i++){
|
||||
for (i = 0, len = keys.length; i < len; i++) {
|
||||
id_list[this.manifest[keys[i]].href] = keys[i];
|
||||
}
|
||||
|
||||
this.zip.readFile(this.spine.toc.href, (function(err, data){
|
||||
if(err){
|
||||
this.zip.readFile(this.spine.toc.href, (function (err, data) {
|
||||
if (err) {
|
||||
this.emit("error", new Error("Reading archive failed"));
|
||||
return;
|
||||
}
|
||||
var xml = data.toString("utf-8"),
|
||||
xmlparser = new XML2JS();
|
||||
|
||||
xmlparser.on("end", (function(result){
|
||||
if(result.navMap && result.navMap.navPoint){
|
||||
xmlparser.on("end", (function (result) {
|
||||
if (result.navMap && result.navMap.navPoint) {
|
||||
this.toc = this.walkNavMap(result.navMap.navPoint, path, id_list);
|
||||
}
|
||||
|
||||
this.emit("end");
|
||||
}).bind(this));
|
||||
|
||||
xmlparser.on("error", (function(err){
|
||||
xmlparser.on("error", (function (err) {
|
||||
this.emit("error", new Error("Parsing container XML failed"));
|
||||
return;
|
||||
}).bind(this));
|
||||
@ -445,7 +449,7 @@ EPub.prototype.parseTOC = function(){
|
||||
xmlparser.parseString(xml);
|
||||
|
||||
}).bind(this));
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* EPub#walkNavMap(branch, path, id_list,[, level]) -> Array
|
||||
@ -457,42 +461,44 @@ EPub.prototype.parseTOC = function(){
|
||||
* Walks the NavMap object through all levels and finds elements
|
||||
* for TOC
|
||||
**/
|
||||
EPub.prototype.walkNavMap = function(branch, path, id_list, level){
|
||||
EPub.prototype.walkNavMap = function (branch, path, id_list, level) {
|
||||
level = level || 0;
|
||||
|
||||
// don't go too far
|
||||
if(level>7)return [];
|
||||
if (level > 7) {
|
||||
return [];
|
||||
}
|
||||
|
||||
var output = [], element, id, title, order, href;
|
||||
var i, len, output = [], element, title, order, href;
|
||||
|
||||
if(!Array.isArray(branch)){
|
||||
if (!Array.isArray(branch)) {
|
||||
branch = [branch];
|
||||
}
|
||||
|
||||
for(var i=0, len = branch.length; i<len; i++){
|
||||
if(branch[i]["navLabel"]){
|
||||
for (i = 0, len = branch.length; i < len; i++) {
|
||||
if (branch[i].navLabel) {
|
||||
|
||||
title = (branch[i]["navLabel"] && branch[i]["navLabel"].text || branch[i]["navLabel"] || "").trim();
|
||||
title = (branch[i].navLabel && branch[i].navLabel.text || branch[i].navLabel || "").trim();
|
||||
order = Number(branch[i]["@"] && branch[i]["@"].playOrder || 0);
|
||||
href = (branch[i]["content"] && branch[i]["content"]["@"] && branch[i]["content"]["@"].src || "").trim();
|
||||
href = (branch[i].content && branch[i].content["@"] && branch[i].content["@"].src || "").trim();
|
||||
|
||||
element = {
|
||||
level: level,
|
||||
order: order,
|
||||
title: title
|
||||
}
|
||||
};
|
||||
|
||||
if(href){
|
||||
href = path.concat([href]).join("/")
|
||||
if (href) {
|
||||
href = path.concat([href]).join("/");
|
||||
element.href = href;
|
||||
|
||||
if(id_list[element.href]){
|
||||
if (id_list[element.href]) {
|
||||
// link existing object
|
||||
element = this.manifest[id_list[element.href]];
|
||||
element.title = title;
|
||||
element.order = order;
|
||||
element.level = level;
|
||||
}else{
|
||||
} else {
|
||||
// use new one
|
||||
element.href = href;
|
||||
element.id = (branch[i]["@"] && branch[i]["@"].id || "").trim();
|
||||
@ -501,12 +507,12 @@ EPub.prototype.walkNavMap = function(branch, path, id_list, level){
|
||||
output.push(element);
|
||||
}
|
||||
}
|
||||
if(branch[i]["navPoint"]){
|
||||
output = output.concat(this.walkNavMap(branch[i]["navPoint"], path, id_list, level + 1));
|
||||
if (branch[i].navPoint) {
|
||||
output = output.concat(this.walkNavMap(branch[i].navPoint, path, id_list, level + 1));
|
||||
}
|
||||
}
|
||||
return output;
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* EPub#getChapter(id, callback) -> undefined
|
||||
@ -516,18 +522,18 @@ EPub.prototype.walkNavMap = function(branch, path, id_list, level){
|
||||
* Finds a chapter text for an id. Replaces image and link URL's, removes
|
||||
* <head> etc. elements. Return only chapters with mime type application/xhtml+xml
|
||||
**/
|
||||
EPub.prototype.getChapter = function(id, callback){
|
||||
var path = this.rootFile.split("/"), keys = Object.keys(this.manifest);
|
||||
EPub.prototype.getChapter = function (id, callback) {
|
||||
var i, len, path = this.rootFile.split("/"), keys = Object.keys(this.manifest);
|
||||
path.pop();
|
||||
|
||||
if(this.manifest[id]){
|
||||
if (this.manifest[id]) {
|
||||
|
||||
if((this.manifest[id]['media-type'] || "").toLowerCase().trim() != "application/xhtml+xml"){
|
||||
if ((this.manifest[id]['media-type'] || "").toLowerCase().trim() != "application/xhtml+xml") {
|
||||
return callback(new Error("Inavlid mime type for chapter"));
|
||||
}
|
||||
|
||||
this.zip.readFile(this.manifest[id].href, (function(err, data){
|
||||
if(err){
|
||||
this.zip.readFile(this.manifest[id].href, (function (err, data) {
|
||||
if (err) {
|
||||
callback(new Error("Reading archive failed"));
|
||||
return;
|
||||
}
|
||||
@ -535,85 +541,85 @@ EPub.prototype.getChapter = function(id, callback){
|
||||
var str = data.toString("utf-8");
|
||||
|
||||
// remove linebreaks (no multi line matches in JS regex!)
|
||||
str = str.replace(/\r?\n/g,"\u0000");
|
||||
str = str.replace(/\r?\n/g, "\u0000");
|
||||
|
||||
// keep only <body> contents
|
||||
str.replace(/<body[^>]*?>(.*)<\/body[^>]*?>/i, function(o,d){
|
||||
str.replace(/<body[^>]*?>(.*)<\/body[^>]*?>/i, function (o, d) {
|
||||
str = d.trim();
|
||||
});
|
||||
|
||||
// remove <script> blocks if any
|
||||
str = str.replace(/<script[^>]*?>(.*?)<\/script[^>]*?>/ig, function(o, s){
|
||||
str = str.replace(/<script[^>]*?>(.*?)<\/script[^>]*?>/ig, function (o, s) {
|
||||
return "";
|
||||
});
|
||||
|
||||
// remove <style> blocks if any
|
||||
str = str.replace(/<style[^>]*?>(.*?)<\/style[^>]*?>/ig, function(o, s){
|
||||
str = str.replace(/<style[^>]*?>(.*?)<\/style[^>]*?>/ig, function (o, s) {
|
||||
return "";
|
||||
});
|
||||
|
||||
// remove onEvent handlers
|
||||
str = str.replace(/(\s)(on\w+)(\s*=\s*["']?[^"'\s>]*?["'\s>])/g, function(o, a,b,c){
|
||||
str = str.replace(/(\s)(on\w+)(\s*=\s*["']?[^"'\s>]*?["'\s>])/g, function (o, a, b, c) {
|
||||
return a + "skip-" + b + c;
|
||||
});
|
||||
|
||||
// replace images
|
||||
str = str.replace(/(\ssrc\s*=\s*["']?)([^"'\s>]*?)(["'\s>])/g, (function(o, a,b,c){
|
||||
str = str.replace(/(\ssrc\s*=\s*["']?)([^"'\s>]*?)(["'\s>])/g, (function (o, a, b, c) {
|
||||
var img = path.concat([b]).join("/").trim(),
|
||||
element;
|
||||
|
||||
for(var i=0, len=keys.length; i<len; i++){
|
||||
if(this.manifest[keys[i]].href == img){
|
||||
for (i = 0, len = keys.length; i < len; i++) {
|
||||
if (this.manifest[keys[i]].href == img) {
|
||||
element = this.manifest[keys[i]];
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// include only images from manifest
|
||||
if(element){
|
||||
return a + this.imageroot + element.id+ "/" + img + c;
|
||||
}else{
|
||||
if (element) {
|
||||
return a + this.imageroot + element.id + "/" + img + c;
|
||||
} else {
|
||||
return "";
|
||||
}
|
||||
|
||||
}).bind(this));
|
||||
|
||||
// replace links
|
||||
str = str.replace(/(\shref\s*=\s*["']?)([^"'\s>]*?)(["'\s>])/g, (function(o, a, b, c){
|
||||
str = str.replace(/(\shref\s*=\s*["']?)([^"'\s>]*?)(["'\s>])/g, (function (o, a, b, c) {
|
||||
var linkparts = b && b.split("#"),
|
||||
link = path.concat([(linkparts.shift() || "")]).join("/").trim(),
|
||||
element;
|
||||
|
||||
for(var i=0, len=keys.length; i<len; i++){
|
||||
if(this.manifest[keys[i]].href.split("#")[0] == link){
|
||||
for (i = 0, len = keys.length; i < len; i++) {
|
||||
if (this.manifest[keys[i]].href.split("#")[0] == link) {
|
||||
element = this.manifest[keys[i]];
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(linkparts.length){
|
||||
if (linkparts.length) {
|
||||
link += "#" + linkparts.join("#");
|
||||
}
|
||||
|
||||
// include only images from manifest
|
||||
if(element){
|
||||
return a + this.linkroot + element.id+ "/" + link + c;
|
||||
}else{
|
||||
if (element) {
|
||||
return a + this.linkroot + element.id + "/" + link + c;
|
||||
} else {
|
||||
return a + b + c;
|
||||
}
|
||||
|
||||
}).bind(this));
|
||||
|
||||
// bring back linebreaks
|
||||
str = str.replace(/\u0000/g,"\n").trim();
|
||||
str = str.replace(/\u0000/g, "\n").trim();
|
||||
|
||||
callback(null, str);
|
||||
|
||||
}).bind(this));
|
||||
}else{
|
||||
} else {
|
||||
callback(new Error("File not found"));
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
@ -623,24 +629,27 @@ EPub.prototype.getChapter = function(id, callback){
|
||||
*
|
||||
* Finds an image an id. Returns the image as Buffer. Callback gets
|
||||
* an error object, image buffer and image content-type.
|
||||
* Return only images with mime type image/*
|
||||
* Return only images with mime type image
|
||||
**/
|
||||
EPub.prototype.getImage = function(id, callback){
|
||||
if(this.manifest[id]){
|
||||
EPub.prototype.getImage = function (id, callback) {
|
||||
if (this.manifest[id]) {
|
||||
|
||||
if((this.manifest[id]['media-type'] || "").toLowerCase().trim().substr(0,6) != "image/"){
|
||||
if ((this.manifest[id]['media-type'] || "").toLowerCase().trim().substr(0, 6) != "image/") {
|
||||
return callback(new Error("Inavlid mime type for image"));
|
||||
}
|
||||
|
||||
this.zip.readFile(this.manifest[id].href, (function(err, data){
|
||||
if(err){
|
||||
this.zip.readFile(this.manifest[id].href, (function (err, data) {
|
||||
if (err) {
|
||||
callback(new Error("Reading archive failed"));
|
||||
return;
|
||||
}
|
||||
|
||||
callback(null, data, this.manifest[id]['media-type']);
|
||||
}).bind(this));
|
||||
}else{
|
||||
} else {
|
||||
callback(new Error("File not found"));
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
// Expose to the world
|
||||
module.exports = EPub;
|
||||
Reference in New Issue
Block a user