249 lines
9 KiB
JavaScript
249 lines
9 KiB
JavaScript
/*
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* ThunderAI [https://micz.it/thunderbird-addon-thunderai/]
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* Copyright (C) 2024 - 2026 Mic (m@micz.it)
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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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* 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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import { taLogger } from './mzta-logger.js';
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export class taStorage {
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static STORAGE_KEY_PREFIX = 'msg:';
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static SCHEMA_VERSION = 1;
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taLog = null;
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constructor(do_debug = false) {
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this.taLog = new taLogger("mzta-storage", do_debug);
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}
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/**
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* Build the storage key for a given Message-ID.
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* @param {string} messageId - The Message-ID header string.
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* @returns {string} The prefixed storage key.
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*/
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_buildKey(messageId) {
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return taStorage.STORAGE_KEY_PREFIX + messageId;
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}
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/**
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* Read the full record for a given Message-ID.
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* @param {string} messageId - The Message-ID header string.
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* @returns {Promise<object|null>} The record object or null if not found.
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*/
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async getRecord(messageId) {
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try {
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let key = this._buildKey(messageId);
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let result = await messenger.storage.local.get(key);
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return result[key] || null;
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} catch (e) {
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this.taLog.error('getRecord error: ' + e);
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return null;
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}
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}
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/**
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* Check if a record contains the specified field.
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* @param {object|null} record - The record object (from getRecord).
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* @param {string} field - The field name to check ("spam", "summary", or "translation").
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* @returns {boolean} True if the record exists and the field is present.
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*/
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hasField(record, field) {
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try {
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return record !== null && record !== undefined && field in record;
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} catch (e) {
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this.taLog.error('hasField error: ' + e);
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return false;
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}
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}
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/**
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* Write the spam field for a given Message-ID.
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* @param {string} messageId - The Message-ID header string.
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* @param {object} report_data - The full spam report object with fields:
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* spamValue, explanation, subject, from, message_date, moved, SpamThreshold.
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* @param {boolean} [force=true] - If true, overwrite existing spam data.
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*/
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async writeSpam(messageId, report_data, force = true) {
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try {
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let key = this._buildKey(messageId);
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let record = await this.getRecord(messageId) || { v: taStorage.SCHEMA_VERSION };
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if ('spam' in record && !force) {
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return;
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}
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let now = Date.now();
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record.spam = {
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spamValue: report_data.spamValue,
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explanation: report_data.explanation,
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subject: report_data.subject,
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from: report_data.from,
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message_date: report_data.message_date instanceof Date
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? report_data.message_date.toISOString()
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: report_data.message_date,
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moved: report_data.moved,
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SpamThreshold: report_data.SpamThreshold,
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ts: now,
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};
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record.ts = now;
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await messenger.storage.local.set({ [key]: record });
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} catch (e) {
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this.taLog.error('writeSpam error: ' + e);
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}
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}
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/**
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* Get all records that contain a spam field.
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* @returns {Promise<object>} Map of messageId -> spam data object (legacy shape).
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*/
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async getAllSpamRecords() {
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try {
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let all = await messenger.storage.local.get(null);
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let result = {};
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for (let [key, record] of Object.entries(all)) {
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if (!key.startsWith(taStorage.STORAGE_KEY_PREFIX)) continue;
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if (!this.hasField(record, 'spam')) continue;
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let messageId = key.slice(taStorage.STORAGE_KEY_PREFIX.length);
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let spam = record.spam;
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result[messageId] = {
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headerMessageId: messageId,
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spamValue: spam.spamValue,
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explanation: spam.explanation,
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report_date: new Date(spam.ts),
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subject: spam.subject,
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from: spam.from,
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message_date: spam.message_date,
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moved: spam.moved,
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SpamThreshold: spam.SpamThreshold,
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};
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}
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return result;
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} catch (e) {
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this.taLog.error('getAllSpamRecords error: ' + e);
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return {};
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}
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}
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/**
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* Delete only the spam field from a record.
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* Deletes the entire record if no other data fields remain.
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* @param {string} messageId - The Message-ID header string.
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*/
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async deleteSpamField(messageId) {
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try {
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let key = this._buildKey(messageId);
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let record = await this.getRecord(messageId);
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if (!record || !('spam' in record)) return;
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delete record.spam;
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const remainingFields = Object.keys(record).filter(k => k !== 'v' && k !== 'ts');
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if (remainingFields.length === 0) {
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await messenger.storage.local.remove(key);
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} else {
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await messenger.storage.local.set({ [key]: record });
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}
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} catch (e) {
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this.taLog.error('deleteSpamField error: ' + e);
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}
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}
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/**
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* Write the summary field for a given Message-ID.
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* @param {string} messageId - The Message-ID header string.
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* @param {string} text - The summary text.
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* @param {boolean} [force=true] - If true, overwrite existing summary data.
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*/
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async writeSummary(messageId, text, force = true) {
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try {
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let key = this._buildKey(messageId);
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let record = await this.getRecord(messageId) || { v: taStorage.SCHEMA_VERSION };
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if ('summary' in record && !force) {
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return;
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}
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let now = Date.now();
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record.summary = { text: text, ts: now };
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record.ts = now;
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await messenger.storage.local.set({ [key]: record });
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} catch (e) {
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this.taLog.error('writeSummary error: ' + e);
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}
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}
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/**
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* Write the translation field for a given Message-ID.
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* @param {string} messageId - The Message-ID header string.
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* @param {string} translated_text - The translated text.
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* @param {string} lang - Target language code.
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* @param {boolean} [force=true] - If true, overwrite existing translation data.
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*/
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async writeTranslation(messageId, translated_text, lang, force = true) {
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try {
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let key = this._buildKey(messageId);
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let record = await this.getRecord(messageId) || { v: taStorage.SCHEMA_VERSION };
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if ('translation' in record && !force) {
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return;
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}
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let now = Date.now();
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record.translation = { translated_text: translated_text, lang: lang, ts: now };
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record.ts = now;
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await messenger.storage.local.set({ [key]: record });
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} catch (e) {
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this.taLog.error('writeTranslation error: ' + e);
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}
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}
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/**
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* Delete the entire record for a given Message-ID.
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* @param {string} messageId - The Message-ID header string.
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*/
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async deleteRecord(messageId) {
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try {
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let key = this._buildKey(messageId);
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await messenger.storage.local.remove(key);
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} catch (e) {
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this.taLog.error('deleteRecord error: ' + e);
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}
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}
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/**
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* Remove all records older than maxAgeDays.
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* @param {number} maxAgeDays - Maximum age in days. If 0, does nothing.
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* @returns {Promise<number>} The number of deleted records.
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*/
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async cleanup(maxAgeDays) {
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if (maxAgeDays === 0) {
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return 0;
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}
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try {
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let all = await messenger.storage.local.get(null);
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let cutoff = Date.now() - (maxAgeDays * 24 * 60 * 60 * 1000);
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let keysToDelete = [];
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for (let key of Object.keys(all)) {
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if (!key.startsWith(taStorage.STORAGE_KEY_PREFIX)) {
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continue;
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}
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let record = all[key];
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if (record.ts && record.ts < cutoff) {
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keysToDelete.push(key);
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}
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}
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if (keysToDelete.length > 0) {
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await messenger.storage.local.remove(keysToDelete);
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}
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return keysToDelete.length;
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} catch (e) {
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this.taLog.error('cleanup error: ' + e);
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return 0;
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}
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}
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}
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