yomichan/ext/js/language/dictionary-importer.js

599 lines
22 KiB
JavaScript

/*
* Copyright (C) 2020-2021 Yomichan Authors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/* global
* JSZip
* JsonSchema
* MediaUtil
*/
class DictionaryImporter {
constructor(mediaLoader, onProgress) {
this._mediaLoader = mediaLoader;
this._onProgress = typeof onProgress === 'function' ? onProgress : () => {};
this._progressData = null;
}
async importDictionary(dictionaryDatabase, archiveContent, details) {
if (!dictionaryDatabase) {
throw new Error('Invalid database');
}
if (!dictionaryDatabase.isPrepared()) {
throw new Error('Database is not ready');
}
this._progressReset();
// Read archive
const archive = await JSZip.loadAsync(archiveContent);
// Read and validate index
const indexFileName = 'index.json';
const indexFile = archive.file(indexFileName);
if (!indexFile) {
throw new Error('No dictionary index found in archive');
}
const index = JSON.parse(await indexFile.async('string'));
const indexSchema = await this._getSchema('/data/schemas/dictionary-index-schema.json');
this._validateJsonSchema(index, indexSchema, indexFileName);
const dictionaryTitle = index.title;
const version = index.format || index.version;
if (!dictionaryTitle || !index.revision) {
throw new Error('Unrecognized dictionary format');
}
// Verify database is not already imported
if (await dictionaryDatabase.dictionaryExists(dictionaryTitle)) {
throw new Error('Dictionary is already imported');
}
// Data format converters
const convertTermBankEntry = (version === 1 ? this._convertTermBankEntryV1.bind(this) : this._convertTermBankEntryV3.bind(this));
const convertTermMetaBankEntry = this._convertTermMetaBankEntry.bind(this);
const convertKanjiBankEntry = (version === 1 ? this._convertKanjiBankEntryV1.bind(this) : this._convertKanjiBankEntryV3.bind(this));
const convertKanjiMetaBankEntry = this._convertKanjiMetaBankEntry.bind(this);
const convertTagBankEntry = this._convertTagBankEntry.bind(this);
// Load schemas
this._progressNextStep(0);
const dataBankSchemaPaths = this._getDataBankSchemaPaths(version);
const dataBankSchemas = await Promise.all(dataBankSchemaPaths.map((path) => this._getSchema(path)));
// Files
const termFiles = this._getArchiveFiles(archive, 'term_bank_?.json');
const termMetaFiles = this._getArchiveFiles(archive, 'term_meta_bank_?.json');
const kanjiFiles = this._getArchiveFiles(archive, 'kanji_bank_?.json');
const kanjiMetaFiles = this._getArchiveFiles(archive, 'kanji_meta_bank_?.json');
const tagFiles = this._getArchiveFiles(archive, 'tag_bank_?.json');
// Load data
this._progressNextStep(termFiles.length + termMetaFiles.length + kanjiFiles.length + kanjiMetaFiles.length + tagFiles.length);
const termList = await this._readFileSequence(termFiles, convertTermBankEntry, dataBankSchemas[0], dictionaryTitle);
const termMetaList = await this._readFileSequence(termMetaFiles, convertTermMetaBankEntry, dataBankSchemas[1], dictionaryTitle);
const kanjiList = await this._readFileSequence(kanjiFiles, convertKanjiBankEntry, dataBankSchemas[2], dictionaryTitle);
const kanjiMetaList = await this._readFileSequence(kanjiMetaFiles, convertKanjiMetaBankEntry, dataBankSchemas[3], dictionaryTitle);
const tagList = await this._readFileSequence(tagFiles, convertTagBankEntry, dataBankSchemas[4], dictionaryTitle);
this._addOldIndexTags(index, tagList, dictionaryTitle);
// Prefix wildcard support
const prefixWildcardsSupported = !!details.prefixWildcardsSupported;
if (prefixWildcardsSupported) {
for (const entry of termList) {
entry.expressionReverse = stringReverse(entry.expression);
entry.readingReverse = stringReverse(entry.reading);
}
}
// Extended data support
this._progressNextStep(termList.length);
const formatProgressInterval = 1000;
const requirements = [];
for (let i = 0, ii = termList.length; i < ii; ++i) {
const entry = termList[i];
const glossaryList = entry.glossary;
for (let j = 0, jj = glossaryList.length; j < jj; ++j) {
const glossary = glossaryList[j];
if (typeof glossary !== 'object' || glossary === null) { continue; }
glossaryList[j] = this._formatDictionaryTermGlossaryObject(glossary, entry, requirements);
}
if ((i % formatProgressInterval) === 0) {
this._progressData.index = i;
this._progress();
}
}
this._progress();
// Async requirements
this._progressNextStep(requirements.length);
const {media} = await this._resolveAsyncRequirements(requirements, archive);
// Add dictionary descriptor
this._progressNextStep(termList.length + termMetaList.length + kanjiList.length + kanjiMetaList.length + tagList.length + media.length);
const counts = {
terms: {total: termList.length},
termMeta: this._getMetaCounts(termMetaList),
kanji: {total: kanjiList.length},
kanjiMeta: this._getMetaCounts(kanjiMetaList),
tagMeta: {total: tagList.length},
media: {total: media.length}
};
const summary = this._createSummary(dictionaryTitle, version, index, {prefixWildcardsSupported, counts});
dictionaryDatabase.bulkAdd('dictionaries', [summary], 0, 1);
// Add data
const errors = [];
const maxTransactionLength = 1000;
const bulkAdd = async (objectStoreName, entries) => {
const ii = entries.length;
for (let i = 0; i < ii; i += maxTransactionLength) {
const count = Math.min(maxTransactionLength, ii - i);
try {
await dictionaryDatabase.bulkAdd(objectStoreName, entries, i, count);
} catch (e) {
errors.push(e);
}
this._progressData.index += count;
this._progress();
}
};
await bulkAdd('terms', termList);
await bulkAdd('termMeta', termMetaList);
await bulkAdd('kanji', kanjiList);
await bulkAdd('kanjiMeta', kanjiMetaList);
await bulkAdd('tagMeta', tagList);
await bulkAdd('media', media);
this._progress();
return {result: summary, errors};
}
_progressReset() {
this._progressData = {
stepIndex: 0,
stepCount: 6,
index: 0,
count: 0
};
this._progress();
}
_progressNextStep(count) {
++this._progressData.stepIndex;
this._progressData.index = 0;
this._progressData.count = count;
this._progress();
}
_progress() {
this._onProgress(this._progressData);
}
_createSummary(dictionaryTitle, version, index, details) {
const summary = {
title: dictionaryTitle,
revision: index.revision,
sequenced: index.sequenced,
version,
importDate: Date.now()
};
const {author, url, description, attribution, frequencyMode} = index;
if (typeof author === 'string') { summary.author = author; }
if (typeof url === 'string') { summary.url = url; }
if (typeof description === 'string') { summary.description = description; }
if (typeof attribution === 'string') { summary.attribution = attribution; }
if (typeof frequencyMode === 'string') { summary.frequencyMode = frequencyMode; }
Object.assign(summary, details);
return summary;
}
async _getSchema(fileName) {
const schema = await this._fetchJsonAsset(fileName);
return new JsonSchema(schema);
}
_validateJsonSchema(value, schema, fileName) {
try {
schema.validate(value);
} catch (e) {
throw this._formatSchemaError(e, fileName);
}
}
_formatSchemaError(e, fileName) {
const valuePathString = this._getSchemaErrorPathString(e.valueStack, 'dictionary');
const schemaPathString = this._getSchemaErrorPathString(e.schemaStack, 'schema');
const e2 = new Error(`Dictionary has invalid data in '${fileName}' for value '${valuePathString}', validated against '${schemaPathString}': ${e.message}`);
e2.data = e;
return e2;
}
_getSchemaErrorPathString(infoList, base='') {
let result = base;
for (const {path} of infoList) {
const pathArray = Array.isArray(path) ? path : [path];
for (const pathPart of pathArray) {
if (pathPart === null) {
result = base;
} else {
switch (typeof pathPart) {
case 'string':
if (result.length > 0) {
result += '.';
}
result += pathPart;
break;
case 'number':
result += `[${pathPart}]`;
break;
}
}
}
}
return result;
}
_getDataBankSchemaPaths(version) {
const termBank = (
version === 1 ?
'/data/schemas/dictionary-term-bank-v1-schema.json' :
'/data/schemas/dictionary-term-bank-v3-schema.json'
);
const termMetaBank = '/data/schemas/dictionary-term-meta-bank-v3-schema.json';
const kanjiBank = (
version === 1 ?
'/data/schemas/dictionary-kanji-bank-v1-schema.json' :
'/data/schemas/dictionary-kanji-bank-v3-schema.json'
);
const kanjiMetaBank = '/data/schemas/dictionary-kanji-meta-bank-v3-schema.json';
const tagBank = '/data/schemas/dictionary-tag-bank-v3-schema.json';
return [termBank, termMetaBank, kanjiBank, kanjiMetaBank, tagBank];
}
_formatDictionaryTermGlossaryObject(data, entry, requirements) {
switch (data.type) {
case 'text':
return data.text;
case 'image':
return this._formatDictionaryTermGlossaryImage(data, entry, requirements);
case 'structured-content':
return this._formatStructuredContent(data, entry, requirements);
default:
throw new Error(`Unhandled data type: ${data.type}`);
}
}
_formatDictionaryTermGlossaryImage(data, entry, requirements) {
const target = {};
requirements.push({type: 'image', target, args: [data, entry]});
return target;
}
_formatStructuredContent(data, entry, requirements) {
const content = this._prepareStructuredContent(data.content, entry, requirements);
return {
type: 'structured-content',
content
};
}
_prepareStructuredContent(content, entry, requirements) {
if (typeof content === 'string' || !(typeof content === 'object' && content !== null)) {
return content;
}
if (Array.isArray(content)) {
for (let i = 0, ii = content.length; i < ii; ++i) {
content[i] = this._prepareStructuredContent(content[i], entry, requirements);
}
return content;
}
const {tag} = content;
switch (tag) {
case 'img':
return this._prepareStructuredContentImage(content, entry, requirements);
}
const childContent = content.content;
if (typeof childContent !== 'undefined') {
content.content = this._prepareStructuredContent(childContent, entry, requirements);
}
return content;
}
_prepareStructuredContentImage(content, entry, requirements) {
const target = {};
requirements.push({type: 'structured-content-image', target, args: [content, entry]});
return target;
}
async _resolveAsyncRequirements(requirements, archive) {
const media = new Map();
const context = {archive, media};
for (const requirement of requirements) {
await this._resolveAsyncRequirement(context, requirement);
}
return {
media: [...media.values()]
};
}
async _resolveAsyncRequirement(context, requirement) {
const {type, target, args} = requirement;
let result;
switch (type) {
case 'image':
result = await this._resolveDictionaryTermGlossaryImage(context, ...args);
break;
case 'structured-content-image':
result = await this._resolveStructuredContentImage(context, ...args);
break;
default:
return;
}
Object.assign(target, result);
++this._progressData.index;
this._progress();
}
async _resolveDictionaryTermGlossaryImage(context, data, entry) {
return await this._createImageData(context, data, entry, {type: 'image'});
}
async _resolveStructuredContentImage(context, content, entry) {
const {verticalAlign, sizeUnits} = content;
const result = await this._createImageData(context, content, entry, {tag: 'img'});
if (typeof verticalAlign === 'string') { result.verticalAlign = verticalAlign; }
if (typeof sizeUnits === 'string') { result.sizeUnits = sizeUnits; }
return result;
}
async _createImageData(context, data, entry, attributes) {
const {
path,
width: preferredWidth,
height: preferredHeight,
title,
description,
pixelated,
imageRendering,
appearance,
background,
collapsed,
collapsible
} = data;
const {width, height} = await this._getImageMedia(context, path, entry);
const newData = Object.assign({}, attributes, {path, width, height});
if (typeof preferredWidth === 'number') { newData.preferredWidth = preferredWidth; }
if (typeof preferredHeight === 'number') { newData.preferredHeight = preferredHeight; }
if (typeof title === 'string') { newData.title = title; }
if (typeof description === 'string') { newData.description = description; }
if (typeof pixelated === 'boolean') { newData.pixelated = pixelated; }
if (typeof imageRendering === 'string') { newData.imageRendering = imageRendering; }
if (typeof appearance === 'string') { newData.appearance = appearance; }
if (typeof background === 'boolean') { newData.background = background; }
if (typeof collapsed === 'boolean') { newData.collapsed = collapsed; }
if (typeof collapsible === 'boolean') { newData.collapsible = collapsible; }
return newData;
}
async _getImageMedia(context, path, entry) {
const {media} = context;
const {dictionary} = entry;
const createError = (message) => {
const {expression, reading} = entry;
const readingSource = reading.length > 0 ? ` (${reading})`: '';
return new Error(`${message} at path ${JSON.stringify(path)} for ${expression}${readingSource} in ${dictionary}`);
};
// Check if already added
let mediaData = media.get(path);
if (typeof mediaData !== 'undefined') {
if (MediaUtil.getFileExtensionFromImageMediaType(mediaData.mediaType) === null) {
throw createError('Media file is not a valid image');
}
return mediaData;
}
// Find file in archive
const file = context.archive.file(path);
if (file === null) {
throw createError('Could not find image');
}
// Load file content
let content = await file.async('arraybuffer');
const mediaType = MediaUtil.getImageMediaTypeFromFileName(path);
if (mediaType === null) {
throw createError('Could not determine media type for image');
}
// Load image data
let width;
let height;
try {
({content, width, height} = await this._mediaLoader.getImageDetails(content, mediaType));
} catch (e) {
throw createError('Could not load image');
}
// Create image data
mediaData = {
dictionary,
path,
mediaType,
width,
height,
content
};
media.set(path, mediaData);
return mediaData;
}
async _fetchJsonAsset(url) {
const response = await fetch(url, {
method: 'GET',
mode: 'no-cors',
cache: 'default',
credentials: 'omit',
redirect: 'follow',
referrerPolicy: 'no-referrer'
});
if (!response.ok) {
throw new Error(`Failed to fetch ${url}: ${response.status}`);
}
return await response.json();
}
_convertTermBankEntryV1(entry, dictionary) {
let [expression, reading, definitionTags, rules, score, ...glossary] = entry;
expression = this._normalizeTermOrReading(expression);
reading = this._normalizeTermOrReading(reading.length > 0 ? reading : expression);
return {expression, reading, definitionTags, rules, score, glossary, dictionary};
}
_convertTermBankEntryV3(entry, dictionary) {
let [expression, reading, definitionTags, rules, score, glossary, sequence, termTags] = entry;
expression = this._normalizeTermOrReading(expression);
reading = this._normalizeTermOrReading(reading.length > 0 ? reading : expression);
return {expression, reading, definitionTags, rules, score, glossary, sequence, termTags, dictionary};
}
_convertTermMetaBankEntry(entry, dictionary) {
const [expression, mode, data] = entry;
return {expression, mode, data, dictionary};
}
_convertKanjiBankEntryV1(entry, dictionary) {
const [character, onyomi, kunyomi, tags, ...meanings] = entry;
return {character, onyomi, kunyomi, tags, meanings, dictionary};
}
_convertKanjiBankEntryV3(entry, dictionary) {
const [character, onyomi, kunyomi, tags, meanings, stats] = entry;
return {character, onyomi, kunyomi, tags, meanings, stats, dictionary};
}
_convertKanjiMetaBankEntry(entry, dictionary) {
const [character, mode, data] = entry;
return {character, mode, data, dictionary};
}
_convertTagBankEntry(entry, dictionary) {
const [name, category, order, notes, score] = entry;
return {name, category, order, notes, score, dictionary};
}
_addOldIndexTags(index, results, dictionary) {
const {tagMeta} = index;
if (typeof tagMeta !== 'object' || tagMeta === null) { return; }
for (const name of Object.keys(tagMeta)) {
const {category, order, notes, score} = tagMeta[name];
results.push({name, category, order, notes, score, dictionary});
}
}
_getArchiveFiles(archive, fileNameFormat) {
const indexPosition = fileNameFormat.indexOf('?');
const prefix = fileNameFormat.substring(0, indexPosition);
const suffix = fileNameFormat.substring(indexPosition + 1);
const results = [];
for (let i = 1; true; ++i) {
const fileName = `${prefix}${i}${suffix}`;
const file = archive.file(fileName);
if (!file) { break; }
results.push(file);
}
return results;
}
async _readFileSequence(files, convertEntry, schema, dictionaryTitle) {
const progressData = this._progressData;
let count = 0;
let startIndex = 0;
if (typeof this._onProgress === 'function') {
schema.progressInterval = 1000;
schema.progress = (s) => {
const index = s.getValueStackLength() > 1 ? s.getValueStackItem(1).path : 0;
progressData.index = startIndex + (index / count);
this._progress();
};
}
const results = [];
for (const file of files) {
const entries = JSON.parse(await file.async('string'));
count = Array.isArray(entries) ? Math.max(entries.length, 1) : 1;
startIndex = progressData.index;
this._progress();
this._validateJsonSchema(entries, schema, file.name);
progressData.index = startIndex + 1;
this._progress();
for (const entry of entries) {
results.push(convertEntry(entry, dictionaryTitle));
}
}
return results;
}
_getMetaCounts(metaList) {
const countsMap = new Map();
for (const {mode} of metaList) {
let count = countsMap.get(mode);
count = typeof count !== 'undefined' ? count + 1 : 1;
countsMap.set(mode, count);
}
const counts = {total: metaList.length};
for (const [key, value] of countsMap.entries()) {
if (Object.prototype.hasOwnProperty.call(counts, key)) { continue; }
counts[key] = value;
}
return counts;
}
_normalizeTermOrReading(text) {
// Note: this function should not perform String.normalize on the text,
// as it will characters in an undesirable way.
// Thus, this function is currently a no-op.
// Example:
// - '\u9038'.normalize('NFC') => '\u9038' (逸)
// - '\ufa67'.normalize('NFC') => '\u9038' (逸 => 逸)
return text;
}
}