Переименования

server/core/fb2/Fb2Parser.js

@@ -1,101 +1,37 @@
-const fs = require('fs-extra');
-const iconv = require('iconv-lite');
-const textUtils = require('./textUtils');
-
 const XmlParser = require('../xml/XmlParser');
-const utils = require('../utils');
 
 class Fb2Parser {
-    checkEncoding(data) {
-        //Корректируем кодировку UTF-16
-        let encoding = textUtils.getEncoding(data);
-        if (encoding.indexOf('UTF-16') == 0) {
-            data = Buffer.from(iconv.decode(data, encoding));
-            encoding = 'utf-8';
-        }
-
-        //Корректируем пробелы, всякие файлы попадаются :(
-        if (data[0] == 32) {
-            data = Buffer.from(data.toString().trim());
-        }
-
-        //Окончательно корректируем кодировку
-        let result = data;
-
-        let left = data.indexOf('<?xml version="1.0"');
-        if (left < 0) {
-            left = data.indexOf('<?xml version=\'1.0\'');
-        }
-
-        if (left >= 0) {
-            const right = data.indexOf('?>', left);
-            if (right >= 0) {
-                const head = data.slice(left, right + 2).toString();
-                const m = head.match(/encoding=['"](.*?)['"]/);
-                if (m) {
-                    let enc = m[1].toLowerCase();
-                    if (enc != 'utf-8') {
-                        //enc может не соответсвовать реальной кодировке файла, поэтому:
-                        if (encoding.indexOf('ISO-8859') >= 0) {
-                            encoding = enc;
-                        }
-
-                        result = iconv.decode(data, encoding);
-                        result = Buffer.from(result.toString().replace(m[0], `encoding="utf-8"`));
-                    }
-                }
-            }
-        }
-
-        return result;
+    constructor() {
+        this.xml = new XmlParser();
     }
 
-    async getDescAndCover(bookFile) {
-        let data = await fs.readFile(bookFile);
-        data = await utils.gunzipBuffer(data);
+    toString(options) {
+        return this.xml.toString(options);
+    }
 
-        data = this.checkEncoding(data);
+    fromString(fb2String) {
+        this.xml.fromString(fb2String);
+        return this;
+    }
 
-        const xml = new XmlParser();
+    toObject(options) {
+        return this.xml.toObject(options);
+    }
 
-        xml.fromString(data.toString(), {
-            lowerCase: true,
-            pickNode: route => route.indexOf('fictionbook/body') !== 0,
-        });
+    fromObject(fb2Object) {
+        this.xml.fromObject(fb2Object);
+        return this;
+    }
 
-        const desc = xml.$$('description').toObject();
-        const coverImage = xml.navigator(desc).$('description/title-info/coverpage/image');
+    bookInfo(fb2Object) {
+        if (!fb2Object)
+            fb2Object = this.toObject();
 
-        let cover = null;
-        let coverExt = '';
-        if (coverImage) {
-            const coverAttrs = coverImage.attrs();
-            const href = coverAttrs['l:href'];
-            let coverType = coverAttrs['content-type'];
-            coverType = (coverType == 'image/jpg' || coverType == 'application/octet-stream' ? 'image/jpeg' : coverType);
-            coverExt = (coverType == 'image/png' ? '.png' : '.jpg');
+        //const result = {};
 
-            if (href) {
-                const binaryId = (href[0] == '#' ? href.substring(1) : href);
+    }
 
-                //найдем нужный image
-                xml.$$('binary').eachSelf(node => {
-                    let attrs = node.attrs();
-                    if (!attrs)
-                        return;
-                    attrs = Object.fromEntries(attrs);
-
-                    if (attrs.id === binaryId) {
-                        const textNode = new XmlParser(node.value);
-                        const base64 = textNode.$self('*TEXT').value;
-
-                        cover = (base64 ? Buffer.from(base64, 'base64') : null);
-                    }
-                });
-            }
-        }
-
-        return {desc, cover, coverExt};
+    bookInfoList(fb2Object) {
     }
 }