343 lines
13 KiB
JavaScript
343 lines
13 KiB
JavaScript
/*
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* Runs in the **WebExtension (addon)** context.
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* For this minimal working version we only expose an async helper
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* so UI pages / devtools panels can test the classifier without
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* needing Thunderbird’s filter engine.
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*
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* Note: the filter-engine itself NEVER calls this file – the
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* synchronous work is all done in experiment/api.js (chrome side).
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*/
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"use strict";
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const storage = (globalThis.messenger ?? browser).storage;
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let logger;
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let AiClassifier;
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let aiRules = [];
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let queue = Promise.resolve();
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let queuedCount = 0;
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let processing = false;
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let iconTimer = null;
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function setIcon(path) {
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if (browser.browserAction) {
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browser.browserAction.setIcon({ path });
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}
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if (browser.messageDisplayAction) {
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browser.messageDisplayAction.setIcon({ path });
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}
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}
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function updateActionIcon() {
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let path = "resources/img/logo32.png";
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if (processing || queuedCount > 0) {
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path = "resources/img/busy.png";
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}
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setIcon(path);
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}
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function showTransientIcon(path, delay = 1500) {
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clearTimeout(iconTimer);
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setIcon(path);
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iconTimer = setTimeout(updateActionIcon, delay);
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}
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async function sha256Hex(str) {
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const buf = await crypto.subtle.digest('SHA-256', new TextEncoder().encode(str));
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return Array.from(new Uint8Array(buf), b => b.toString(16).padStart(2, '0')).join('');
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}
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function byteSize(str) {
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return new TextEncoder().encode(str || "").length;
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}
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function replaceInlineBase64(text) {
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return text.replace(/[A-Za-z0-9+/]{100,}={0,2}/g,
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m => `[base64: ${byteSize(m)} bytes]`);
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}
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function collectText(part, bodyParts, attachments) {
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if (part.parts && part.parts.length) {
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for (const p of part.parts) collectText(p, bodyParts, attachments);
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return;
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}
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const ct = (part.contentType || "text/plain").toLowerCase();
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const cd = (part.headers?.["content-disposition"]?.[0] || "").toLowerCase();
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const body = String(part.body || "");
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if (cd.includes("attachment") || !ct.startsWith("text/")) {
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const nameMatch = /filename\s*=\s*"?([^";]+)/i.exec(cd) || /name\s*=\s*"?([^";]+)/i.exec(part.headers?.["content-type"]?.[0] || "");
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const name = nameMatch ? nameMatch[1] : "";
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attachments.push(`${name} (${ct}, ${part.size || byteSize(body)} bytes)`);
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} else if (ct.startsWith("text/html")) {
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const doc = new DOMParser().parseFromString(body, 'text/html');
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bodyParts.push(replaceInlineBase64(doc.body.textContent || ""));
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} else {
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bodyParts.push(replaceInlineBase64(body));
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}
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}
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function buildEmailText(full) {
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const bodyParts = [];
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const attachments = [];
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collectText(full, bodyParts, attachments);
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const headers = Object.entries(full.headers || {})
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.map(([k,v]) => `${k}: ${v.join(' ')}`)
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.join('\n');
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const attachInfo = `Attachments: ${attachments.length}` + (attachments.length ? "\n" + attachments.map(a => ` - ${a}`).join('\n') : "");
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return `${headers}\n${attachInfo}\n\n${bodyParts.join('\n')}`.trim();
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}
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async function applyAiRules(idsInput) {
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const ids = Array.isArray(idsInput) ? idsInput : [idsInput];
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if (!ids.length) return queue;
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if (!aiRules.length) {
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const { aiRules: stored } = await storage.local.get("aiRules");
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aiRules = Array.isArray(stored) ? stored.map(r => {
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if (r.actions) return r;
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const actions = [];
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if (r.tag) actions.push({ type: 'tag', tagKey: r.tag });
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if (r.moveTo) actions.push({ type: 'move', folder: r.moveTo });
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const rule = { criterion: r.criterion, actions };
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if (r.stopProcessing) rule.stopProcessing = true;
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return rule;
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}) : [];
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}
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for (const msg of ids) {
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const id = msg?.id ?? msg;
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queuedCount++;
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updateActionIcon();
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queue = queue.then(async () => {
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processing = true;
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queuedCount--;
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updateActionIcon();
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try {
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const full = await messenger.messages.getFull(id);
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const text = buildEmailText(full);
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for (const rule of aiRules) {
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const cacheKey = await sha256Hex(`${id}|${rule.criterion}`);
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const matched = await AiClassifier.classifyText(text, rule.criterion, cacheKey);
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if (matched) {
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for (const act of (rule.actions || [])) {
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if (act.type === 'tag' && act.tagKey) {
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await messenger.messages.update(id, { tags: [act.tagKey] });
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} else if (act.type === 'move' && act.folder) {
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await messenger.messages.move([id], act.folder);
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} else if (act.type === 'junk') {
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await messenger.messages.update(id, { junk: !!act.junk });
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}
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}
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if (rule.stopProcessing) {
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break;
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}
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}
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}
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processing = false;
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showTransientIcon("resources/img/done.png");
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} catch (e) {
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processing = false;
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logger.aiLog("failed to apply AI rules", { level: 'error' }, e);
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showTransientIcon("resources/img/error.png");
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}
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});
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}
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return queue;
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}
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async function clearCacheForMessages(idsInput) {
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const ids = Array.isArray(idsInput) ? idsInput : [idsInput];
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if (!ids.length) return;
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if (!aiRules.length) {
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const { aiRules: stored } = await storage.local.get("aiRules");
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aiRules = Array.isArray(stored) ? stored.map(r => {
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if (r.actions) return r;
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const actions = [];
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if (r.tag) actions.push({ type: 'tag', tagKey: r.tag });
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if (r.moveTo) actions.push({ type: 'move', folder: r.moveTo });
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const rule = { criterion: r.criterion, actions };
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if (r.stopProcessing) rule.stopProcessing = true;
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return rule;
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}) : [];
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}
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const keys = [];
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for (const msg of ids) {
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const id = msg?.id ?? msg;
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for (const rule of aiRules) {
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const key = await sha256Hex(`${id}|${rule.criterion}`);
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keys.push(key);
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}
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}
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if (keys.length) {
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await AiClassifier.removeCacheEntries(keys);
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showTransientIcon("resources/img/done.png");
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}
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}
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(async () => {
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logger = await import(browser.runtime.getURL("logger.js"));
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try {
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AiClassifier = await import(browser.runtime.getURL("modules/AiClassifier.js"));
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logger.aiLog("AiClassifier imported", {debug: true});
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} catch (e) {
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console.error("failed to import AiClassifier", e);
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return;
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}
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try {
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const store = await storage.local.get(["endpoint", "templateName", "customTemplate", "customSystemPrompt", "aiParams", "debugLogging", "aiRules"]);
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logger.setDebug(store.debugLogging);
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await AiClassifier.setConfig(store);
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aiRules = Array.isArray(store.aiRules) ? store.aiRules.map(r => {
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if (r.actions) return r;
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const actions = [];
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if (r.tag) actions.push({ type: 'tag', tagKey: r.tag });
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if (r.moveTo) actions.push({ type: 'move', folder: r.moveTo });
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const rule = { criterion: r.criterion, actions };
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if (r.stopProcessing) rule.stopProcessing = true;
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return rule;
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}) : [];
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logger.aiLog("configuration loaded", {debug: true}, store);
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storage.onChanged.addListener(async changes => {
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if (changes.aiRules) {
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const newRules = changes.aiRules.newValue || [];
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aiRules = newRules.map(r => {
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if (r.actions) return r;
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const actions = [];
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if (r.tag) actions.push({ type: 'tag', tagKey: r.tag });
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if (r.moveTo) actions.push({ type: 'move', folder: r.moveTo });
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const rule = { criterion: r.criterion, actions };
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if (r.stopProcessing) rule.stopProcessing = true;
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return rule;
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});
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logger.aiLog("aiRules updated from storage change", {debug: true}, aiRules);
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}
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});
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} catch (err) {
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logger.aiLog("failed to load config", {level: 'error'}, err);
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}
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logger.aiLog("background.js loaded – ready to classify", {debug: true});
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if (browser.messageDisplayAction) {
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browser.messageDisplayAction.setTitle({ title: "Classify" });
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if (browser.messageDisplayAction.setLabel) {
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browser.messageDisplayAction.setLabel({ label: "Classify" });
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}
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}
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if (browser.messageDisplayScripts?.registerScripts) {
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try {
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await browser.messageDisplayScripts.registerScripts([
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{ js: [browser.runtime.getURL("resources/clearCacheButton.js")] }
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]);
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} catch (e) {
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logger.aiLog("failed to register message display script", { level: 'warn' }, e);
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}
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}
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browser.menus.create({
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id: "apply-ai-rules-list",
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title: "Apply AI Rules",
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contexts: ["message_list"],
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});
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browser.menus.create({
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id: "apply-ai-rules-display",
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title: "Apply AI Rules",
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contexts: ["message_display_action"],
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});
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browser.menus.create({
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id: "clear-ai-cache-list",
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title: "Clear AI Cache",
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contexts: ["message_list"],
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});
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browser.menus.create({
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id: "clear-ai-cache-display",
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title: "Clear AI Cache",
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contexts: ["message_display_action"],
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});
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if (browser.messageDisplayAction) {
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browser.messageDisplayAction.onClicked.addListener(async (tab) => {
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try {
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const msgs = await browser.messageDisplay.getDisplayedMessages(tab.id);
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const ids = msgs.map(m => m.id);
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await applyAiRules(ids);
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} catch (e) {
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logger.aiLog("failed to apply AI rules from action", { level: 'error' }, e);
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}
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});
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}
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browser.menus.onClicked.addListener(async info => {
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if (info.menuItemId === "apply-ai-rules-list" || info.menuItemId === "apply-ai-rules-display") {
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const ids = info.selectedMessages?.messages?.map(m => m.id) ||
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(info.messageId ? [info.messageId] : []);
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await applyAiRules(ids);
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} else if (info.menuItemId === "clear-ai-cache-list" || info.menuItemId === "clear-ai-cache-display") {
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const ids = info.selectedMessages?.messages?.map(m => m.id) ||
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(info.messageId ? [info.messageId] : []);
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await clearCacheForMessages(ids);
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}
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});
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// Listen for messages from UI/devtools
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browser.runtime.onMessage.addListener(async (msg) => {
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logger.aiLog("onMessage received", {debug: true}, msg);
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if (msg?.type === "aiFilter:test") {
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const { text = "", criterion = "" } = msg;
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logger.aiLog("aiFilter:test – text", {debug: true}, text);
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logger.aiLog("aiFilter:test – criterion", {debug: true}, criterion);
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try {
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logger.aiLog("Calling AiClassifier.classifyText()", {debug: true});
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const result = await AiClassifier.classifyText(text, criterion);
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logger.aiLog("classify() returned", {debug: true}, result);
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return { match: result };
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}
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catch (err) {
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logger.aiLog("Error in classify()", {level: 'error'}, err);
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// rethrow so the caller sees the failure
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throw err;
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}
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} else if (msg?.type === "sortana:clearCacheForDisplayed") {
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try {
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const tabs = await browser.tabs.query({ active: true, currentWindow: true });
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const tabId = tabs[0]?.id;
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const msgs = tabId ? await browser.messageDisplay.getDisplayedMessages(tabId) : [];
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const ids = msgs.map(m => m.id);
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await clearCacheForMessages(ids);
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} catch (e) {
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logger.aiLog("failed to clear cache from message script", { level: 'error' }, e);
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}
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} else {
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logger.aiLog("Unknown message type, ignoring", {level: 'warn'}, msg?.type);
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}
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});
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// Automatically classify new messages
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if (typeof messenger !== "undefined" && messenger.messages?.onNewMailReceived) {
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messenger.messages.onNewMailReceived.addListener(async (folder, messages) => {
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logger.aiLog("onNewMailReceived", {debug: true}, messages);
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const ids = (messages?.messages || messages || []).map(m => m.id ?? m);
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await applyAiRules(ids);
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});
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} else {
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logger.aiLog("messenger.messages API unavailable, skipping new mail listener", { level: 'warn' });
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}
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// Catch any unhandled rejections
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window.addEventListener("unhandledrejection", ev => {
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logger.aiLog("Unhandled promise rejection", {level: 'error'}, ev.reason);
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});
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browser.runtime.onInstalled.addListener(async ({ reason }) => {
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if (reason === "install") {
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await browser.runtime.openOptionsPage();
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}
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});
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})();
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