563 lines
21 KiB
JavaScript
563 lines
21 KiB
JavaScript
/*
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* Copyright (C) 2020-2021 Yomichan Authors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/* global
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* JSZip
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* JsonSchema
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* MediaUtil
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*/
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class DictionaryImporter {
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constructor(mediaLoader, onProgress) {
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this._mediaLoader = mediaLoader;
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this._onProgress = typeof onProgress === 'function' ? onProgress : () => {};
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this._progressData = null;
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}
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async importDictionary(dictionaryDatabase, archiveContent, details) {
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if (!dictionaryDatabase) {
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throw new Error('Invalid database');
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}
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if (!dictionaryDatabase.isPrepared()) {
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throw new Error('Database is not ready');
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}
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this._progressReset();
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// Read archive
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const archive = await JSZip.loadAsync(archiveContent);
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// Read and validate index
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const indexFileName = 'index.json';
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const indexFile = archive.file(indexFileName);
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if (!indexFile) {
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throw new Error('No dictionary index found in archive');
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}
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const index = JSON.parse(await indexFile.async('string'));
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const indexSchema = await this._getSchema('/data/schemas/dictionary-index-schema.json');
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this._validateJsonSchema(index, indexSchema, indexFileName);
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const dictionaryTitle = index.title;
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const version = index.format || index.version;
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if (!dictionaryTitle || !index.revision) {
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throw new Error('Unrecognized dictionary format');
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}
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// Verify database is not already imported
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if (await dictionaryDatabase.dictionaryExists(dictionaryTitle)) {
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throw new Error('Dictionary is already imported');
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}
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// Data format converters
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const convertTermBankEntry = (version === 1 ? this._convertTermBankEntryV1.bind(this) : this._convertTermBankEntryV3.bind(this));
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const convertTermMetaBankEntry = this._convertTermMetaBankEntry.bind(this);
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const convertKanjiBankEntry = (version === 1 ? this._convertKanjiBankEntryV1.bind(this) : this._convertKanjiBankEntryV3.bind(this));
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const convertKanjiMetaBankEntry = this._convertKanjiMetaBankEntry.bind(this);
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const convertTagBankEntry = this._convertTagBankEntry.bind(this);
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// Load schemas
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this._progressNextStep(0);
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const dataBankSchemaPaths = this._getDataBankSchemaPaths(version);
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const dataBankSchemas = await Promise.all(dataBankSchemaPaths.map((path) => this._getSchema(path)));
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// Files
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const termFiles = this._getArchiveFiles(archive, 'term_bank_?.json');
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const termMetaFiles = this._getArchiveFiles(archive, 'term_meta_bank_?.json');
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const kanjiFiles = this._getArchiveFiles(archive, 'kanji_bank_?.json');
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const kanjiMetaFiles = this._getArchiveFiles(archive, 'kanji_meta_bank_?.json');
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const tagFiles = this._getArchiveFiles(archive, 'tag_bank_?.json');
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// Load data
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this._progressNextStep(termFiles.length + termMetaFiles.length + kanjiFiles.length + kanjiMetaFiles.length + tagFiles.length);
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const termList = await this._readFileSequence(termFiles, convertTermBankEntry, dataBankSchemas[0], dictionaryTitle);
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const termMetaList = await this._readFileSequence(termMetaFiles, convertTermMetaBankEntry, dataBankSchemas[1], dictionaryTitle);
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const kanjiList = await this._readFileSequence(kanjiFiles, convertKanjiBankEntry, dataBankSchemas[2], dictionaryTitle);
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const kanjiMetaList = await this._readFileSequence(kanjiMetaFiles, convertKanjiMetaBankEntry, dataBankSchemas[3], dictionaryTitle);
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const tagList = await this._readFileSequence(tagFiles, convertTagBankEntry, dataBankSchemas[4], dictionaryTitle);
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this._addOldIndexTags(index, tagList, dictionaryTitle);
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// Prefix wildcard support
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const prefixWildcardsSupported = !!details.prefixWildcardsSupported;
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if (prefixWildcardsSupported) {
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for (const entry of termList) {
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entry.expressionReverse = stringReverse(entry.expression);
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entry.readingReverse = stringReverse(entry.reading);
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}
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}
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// Extended data support
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this._progressNextStep(termList.length);
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const formatProgressInterval = 1000;
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const requirements = [];
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for (let i = 0, ii = termList.length; i < ii; ++i) {
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const entry = termList[i];
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const glossaryList = entry.glossary;
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for (let j = 0, jj = glossaryList.length; j < jj; ++j) {
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const glossary = glossaryList[j];
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if (typeof glossary !== 'object' || glossary === null) { continue; }
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glossaryList[j] = this._formatDictionaryTermGlossaryObject(glossary, entry, requirements);
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}
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if ((i % formatProgressInterval) === 0) {
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this._progressData.index = i;
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this._progress();
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}
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}
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this._progress();
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// Async requirements
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this._progressNextStep(requirements.length);
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const {media} = await this._resolveAsyncRequirements(requirements, archive);
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// Add dictionary descriptor
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this._progressNextStep(termList.length + termMetaList.length + kanjiList.length + kanjiMetaList.length + tagList.length);
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const summary = this._createSummary(dictionaryTitle, version, index, {prefixWildcardsSupported});
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dictionaryDatabase.bulkAdd('dictionaries', [summary], 0, 1);
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// Add data
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const errors = [];
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const maxTransactionLength = 1000;
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const bulkAdd = async (objectStoreName, entries) => {
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const ii = entries.length;
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for (let i = 0; i < ii; i += maxTransactionLength) {
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const count = Math.min(maxTransactionLength, ii - i);
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try {
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await dictionaryDatabase.bulkAdd(objectStoreName, entries, i, count);
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} catch (e) {
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errors.push(e);
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}
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this._progressData.index += count;
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this._progress();
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}
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};
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await bulkAdd('terms', termList);
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await bulkAdd('termMeta', termMetaList);
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await bulkAdd('kanji', kanjiList);
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await bulkAdd('kanjiMeta', kanjiMetaList);
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await bulkAdd('tagMeta', tagList);
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await bulkAdd('media', media);
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this._progress();
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return {result: summary, errors};
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}
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_progressReset() {
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this._progressData = {
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stepIndex: 0,
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stepCount: 6,
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index: 0,
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count: 0
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};
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this._progress();
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}
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_progressNextStep(count) {
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++this._progressData.stepIndex;
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this._progressData.index = 0;
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this._progressData.count = count;
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this._progress();
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}
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_progress() {
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this._onProgress(this._progressData);
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}
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_createSummary(dictionaryTitle, version, index, details) {
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const summary = {
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title: dictionaryTitle,
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revision: index.revision,
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sequenced: index.sequenced,
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version
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};
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const {author, url, description, attribution} = index;
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if (typeof author === 'string') { summary.author = author; }
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if (typeof url === 'string') { summary.url = url; }
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if (typeof description === 'string') { summary.description = description; }
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if (typeof attribution === 'string') { summary.attribution = attribution; }
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Object.assign(summary, details);
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return summary;
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}
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async _getSchema(fileName) {
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const schema = await this._fetchJsonAsset(fileName);
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return new JsonSchema(schema);
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}
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_validateJsonSchema(value, schema, fileName) {
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try {
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schema.validate(value);
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} catch (e) {
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throw this._formatSchemaError(e, fileName);
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}
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}
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_formatSchemaError(e, fileName) {
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const valuePathString = this._getSchemaErrorPathString(e.valueStack, 'dictionary');
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const schemaPathString = this._getSchemaErrorPathString(e.schemaStack, 'schema');
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const e2 = new Error(`Dictionary has invalid data in '${fileName}' for value '${valuePathString}', validated against '${schemaPathString}': ${e.message}`);
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e2.data = e;
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return e2;
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}
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_getSchemaErrorPathString(infoList, base='') {
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let result = base;
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for (const {path} of infoList) {
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const pathArray = Array.isArray(path) ? path : [path];
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for (const pathPart of pathArray) {
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if (pathPart === null) {
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result = base;
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} else {
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switch (typeof pathPart) {
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case 'string':
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if (result.length > 0) {
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result += '.';
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}
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result += pathPart;
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break;
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case 'number':
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result += `[${pathPart}]`;
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break;
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}
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}
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}
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}
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return result;
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}
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_getDataBankSchemaPaths(version) {
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const termBank = (
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version === 1 ?
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'/data/schemas/dictionary-term-bank-v1-schema.json' :
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'/data/schemas/dictionary-term-bank-v3-schema.json'
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);
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const termMetaBank = '/data/schemas/dictionary-term-meta-bank-v3-schema.json';
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const kanjiBank = (
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version === 1 ?
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'/data/schemas/dictionary-kanji-bank-v1-schema.json' :
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'/data/schemas/dictionary-kanji-bank-v3-schema.json'
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);
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const kanjiMetaBank = '/data/schemas/dictionary-kanji-meta-bank-v3-schema.json';
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const tagBank = '/data/schemas/dictionary-tag-bank-v3-schema.json';
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return [termBank, termMetaBank, kanjiBank, kanjiMetaBank, tagBank];
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}
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_formatDictionaryTermGlossaryObject(data, entry, requirements) {
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switch (data.type) {
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case 'text':
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return data.text;
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case 'image':
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return this._formatDictionaryTermGlossaryImage(data, entry, requirements);
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case 'structured-content':
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return this._formatStructuredContent(data, entry, requirements);
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default:
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throw new Error(`Unhandled data type: ${data.type}`);
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}
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}
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_formatDictionaryTermGlossaryImage(data, entry, requirements) {
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const target = {};
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requirements.push({type: 'image', target, args: [data, entry]});
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return target;
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}
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_formatStructuredContent(data, entry, requirements) {
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const content = this._prepareStructuredContent(data.content, entry, requirements);
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return {
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type: 'structured-content',
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content
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};
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}
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_prepareStructuredContent(content, entry, requirements) {
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if (typeof content === 'string' || !(typeof content === 'object' && content !== null)) {
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return content;
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}
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if (Array.isArray(content)) {
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for (let i = 0, ii = content.length; i < ii; ++i) {
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content[i] = this._prepareStructuredContent(content[i], entry, requirements);
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}
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return content;
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}
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const {tag} = content;
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switch (tag) {
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case 'img':
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return this._prepareStructuredContentImage(content, entry, requirements);
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}
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const childContent = content.content;
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if (typeof childContent !== 'undefined') {
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content.content = this._prepareStructuredContent(childContent, entry, requirements);
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}
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return content;
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}
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_prepareStructuredContentImage(content, entry, requirements) {
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const target = {};
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requirements.push({type: 'structured-content-image', target, args: [content, entry]});
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return target;
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}
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async _resolveAsyncRequirements(requirements, archive) {
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const media = new Map();
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const context = {archive, media};
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const promises = [];
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for (const requirement of requirements) {
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promises.push(this._resolveAsyncRequirement(context, requirement));
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}
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await Promise.all(promises);
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return {
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media: [...media.values()]
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};
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}
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async _resolveAsyncRequirement(context, requirement) {
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const {type, target, args} = requirement;
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let result;
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switch (type) {
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case 'image':
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result = await this._resolveDictionaryTermGlossaryImage(context, ...args);
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break;
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case 'structured-content-image':
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result = await this._resolveStructuredContentImage(context, ...args);
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break;
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default:
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return;
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}
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Object.assign(target, result);
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++this._progressData.index;
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this._progress();
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}
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async _resolveDictionaryTermGlossaryImage(context, data, entry) {
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return await this._createImageData(context, data, entry, {type: 'image'});
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}
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async _resolveStructuredContentImage(context, content, entry) {
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const {verticalAlign, sizeUnits} = content;
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const result = await this._createImageData(context, content, entry, {tag: 'img'});
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if (typeof verticalAlign === 'string') { result.verticalAlign = verticalAlign; }
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if (typeof sizeUnits === 'string') { result.sizeUnits = sizeUnits; }
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return result;
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}
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async _createImageData(context, data, entry, attributes) {
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const {
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path,
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width: preferredWidth,
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height: preferredHeight,
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title,
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description,
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pixelated,
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imageRendering,
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appearance,
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background,
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collapsed,
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collapsible
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} = data;
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const {width, height} = await this._getImageMedia(context, path, entry);
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const newData = Object.assign({}, attributes, {path, width, height});
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if (typeof preferredWidth === 'number') { newData.preferredWidth = preferredWidth; }
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if (typeof preferredHeight === 'number') { newData.preferredHeight = preferredHeight; }
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if (typeof title === 'string') { newData.title = title; }
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if (typeof description === 'string') { newData.description = description; }
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if (typeof pixelated === 'boolean') { newData.pixelated = pixelated; }
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if (typeof imageRendering === 'string') { newData.imageRendering = imageRendering; }
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if (typeof appearance === 'string') { newData.appearance = appearance; }
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if (typeof background === 'boolean') { newData.background = background; }
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if (typeof collapsed === 'boolean') { newData.collapsed = collapsed; }
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if (typeof collapsible === 'boolean') { newData.collapsible = collapsible; }
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return newData;
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}
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async _getImageMedia(context, path, entry) {
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const {media} = context;
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const {dictionary} = entry;
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const createError = (message) => {
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const {expression, reading} = entry;
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const readingSource = reading.length > 0 ? ` (${reading})`: '';
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return new Error(`${message} at path ${JSON.stringify(path)} for ${expression}${readingSource} in ${dictionary}`);
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};
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// Check if already added
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let mediaData = media.get(path);
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if (typeof mediaData !== 'undefined') {
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if (MediaUtil.getFileExtensionFromImageMediaType(mediaData.mediaType) === null) {
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throw createError('Media file is not a valid image');
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}
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return mediaData;
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}
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// Find file in archive
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const file = context.archive.file(path);
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if (file === null) {
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throw createError('Could not find image');
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}
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// Load file content
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const content = await file.async('base64');
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const mediaType = MediaUtil.getImageMediaTypeFromFileName(path);
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if (mediaType === null) {
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throw createError('Could not determine media type for image');
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}
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// Load image data
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let width;
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let height;
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try {
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({width, height} = await this._mediaLoader.getImageResolution(mediaType, content));
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} catch (e) {
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throw createError('Could not load image');
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}
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// Create image data
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mediaData = {
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dictionary,
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path,
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mediaType,
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width,
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height,
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content
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};
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media.set(path, mediaData);
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return mediaData;
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}
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async _fetchJsonAsset(url) {
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const response = await fetch(url, {
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method: 'GET',
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mode: 'no-cors',
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cache: 'default',
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credentials: 'omit',
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redirect: 'follow',
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referrerPolicy: 'no-referrer'
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});
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if (!response.ok) {
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throw new Error(`Failed to fetch ${url}: ${response.status}`);
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}
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return await response.json();
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}
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_convertTermBankEntryV1(entry, dictionary) {
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const [expression, reading, definitionTags, rules, score, ...glossary] = entry;
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return {expression, reading, definitionTags, rules, score, glossary, dictionary};
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}
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_convertTermBankEntryV3(entry, dictionary) {
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const [expression, reading, definitionTags, rules, score, glossary, sequence, termTags] = entry;
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return {expression, reading, definitionTags, rules, score, glossary, sequence, termTags, dictionary};
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}
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_convertTermMetaBankEntry(entry, dictionary) {
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const [expression, mode, data] = entry;
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return {expression, mode, data, dictionary};
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}
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_convertKanjiBankEntryV1(entry, dictionary) {
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const [character, onyomi, kunyomi, tags, ...meanings] = entry;
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return {character, onyomi, kunyomi, tags, meanings, dictionary};
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}
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_convertKanjiBankEntryV3(entry, dictionary) {
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const [character, onyomi, kunyomi, tags, meanings, stats] = entry;
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return {character, onyomi, kunyomi, tags, meanings, stats, dictionary};
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}
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_convertKanjiMetaBankEntry(entry, dictionary) {
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const [character, mode, data] = entry;
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return {character, mode, data, dictionary};
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}
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_convertTagBankEntry(entry, dictionary) {
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const [name, category, order, notes, score] = entry;
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return {name, category, order, notes, score, dictionary};
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}
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_addOldIndexTags(index, results, dictionary) {
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const {tagMeta} = index;
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if (typeof tagMeta !== 'object' || tagMeta === null) { return; }
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for (const name of Object.keys(tagMeta)) {
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const {category, order, notes, score} = tagMeta[name];
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results.push({name, category, order, notes, score, dictionary});
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}
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}
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_getArchiveFiles(archive, fileNameFormat) {
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const indexPosition = fileNameFormat.indexOf('?');
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const prefix = fileNameFormat.substring(0, indexPosition);
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const suffix = fileNameFormat.substring(indexPosition + 1);
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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;
|
|
}
|
|
}
|