🐴 CPU時間を節約しないと動かないんだ!YO! (worker.js)
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1 changed files with 88 additions and 79 deletions
167
worker.js
167
worker.js
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@ -1,36 +1,39 @@
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// @ts-check
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// いじりやすいようにここに変数を集約させたい
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const BLOCKLIST = ["hacker@example.com", "spammer@example.com"];
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const FORWARD_TO = "mymail@example.com";
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const WEBHOOK_URL = "https://discord.com/api/webhooks/xxx/xxx";
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// trendcreate icon
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const WEBHOOK_ICON =
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"https://git.v-sli.me/HidemaruOwO/email-worker/raw/branch/main/assets/webhook_icon.jpg";
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// mail letter icon
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const AUTHOR_ICON =
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"https://git.v-sli.me/HidemaruOwO/email-worker/raw/branch/main/assets/email_icon.png";
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// cloudflare icon
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const FOOTER_ICON =
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"https://git.v-sli.me/HidemaruOwO/email-worker/raw/branch/main/assets/cloudflare_icon.ico";
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// 設定値をグループ化
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const CONFIG = {
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BLOCKLIST: ["hacker@example.com", "spammer@example.com"],
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FORWARD_TO: "mymail@example.com",
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};
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const WEBHOOK = {
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URL: "https://discord.com/api/webhooks/xxx/xxx",
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ICON: "https://git.v-sli.me/HidemaruOwO/email-worker/raw/branch/main/assets/webhook_icon.jpg",
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SENDER: "contact@trendcreate.net",
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};
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const ICONS = {
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AUTHOR:
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"https://git.v-sli.me/HidemaruOwO/email-worker/raw/branch/main/assets/email_icon.png",
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FOOTER:
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"https://git.v-sli.me/HidemaruOwO/email-worker/raw/branch/main/assets/cloudflare_icon.ico",
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};
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export default {
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async email(message, env, ctx) {
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if (BLOCKLIST.includes(message.from)) {
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if (CONFIG.BLOCKLIST.includes(message.from)) {
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message.setReject("Address is blocked");
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return;
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}
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try {
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const [result] = await Promise.all([
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const [notifyResult] = await Promise.allSettled([
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notify(message),
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message.forward(FORWARD_TO),
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message.forward(CONFIG.FORWARD_TO),
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]);
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if (!result.ok) {
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console.log(await result.text());
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console.log(await result.json());
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return;
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if (notifyResult.status === "fulfilled" && !notifyResult.value.ok) {
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console.error("Discord通知失敗:", await notifyResult.value.text());
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}
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} catch (err) {
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console.error("処理エラー:", err);
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@ -38,79 +41,79 @@ export default {
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},
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};
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// async function notify(from, subject, text, date) {
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async function notify(message) {
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const from = message.headers.get("from");
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const subject = message.headers.get("subject");
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const from = message.headers.get("from") || "名前なし";
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const subject = message.headers.get("subject") || "件名なし";
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const date = message.headers.get("date");
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const text = await getMailText(message);
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const payload = {
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username: "contact@trendcreate.net",
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avatar_url: WEBHOOK_ICON,
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username: WEBHOOK.SENDER,
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avatar_url: WEBHOOK.ICON,
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content: `**${from}**からお問い合わせメールが届いております。`,
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embeds: [
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{
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author: { name: from || "名前なし", icon_url: AUTHOR_ICON },
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title: `**${subject || "件名なし"}**`,
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author: { name: from, icon_url: ICONS.AUTHOR },
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title: `**${subject}**`,
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description: text || "本文はありません。",
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timestamp: new Date(date).toISOString(),
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timestamp: date
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? new Date(date).toISOString()
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: new Date().toISOString(),
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footer: {
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text: "Powered by Cloudflare Worker and Email Routing",
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icon_url: FOOTER_ICON,
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icon_url: ICONS.FOOTER,
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},
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},
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],
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};
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// console.log(JSON.stringify(payload))
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try {
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const result = await fetch(WEBHOOK_URL, {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify(payload),
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});
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return result;
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} catch (err) {
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console.log(err);
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throw new Error(err);
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}
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return fetch(WEBHOOK.URL, {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify(payload),
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}).catch((err) => {
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console.error("Webhook送信エラー:", err);
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throw err;
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});
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}
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async function getMailText(message) {
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if (!message.raw) return "";
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try {
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const buf = await readStream(message.raw);
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if (buf === "NO_CONTENT") {
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return "";
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}
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return parseEmail(buf);
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const buffer = await streamToArrayBuffer(message.raw);
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return parseEmail(buffer);
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} catch (err) {
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console.error("メール解析エラー:", err);
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return `エラー: ${err.message}`;
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}
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}
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async function readStream(stream) {
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if (typeof stream === "undefined") {
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return "NO_CONTENT";
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}
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const chunks = [];
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async function streamToArrayBuffer(stream) {
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const reader = stream.getReader();
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const chunks = [];
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let totalSize = 0;
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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chunks.push(value);
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if (value) {
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chunks.push(value);
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totalSize += value.length;
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}
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}
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const size = chunks.reduce((sum, chunk) => sum + chunk.length, 0);
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const result = new Uint8Array(size);
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if (chunks.length === 1) {
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return chunks[0];
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}
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const result = new Uint8Array(totalSize);
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let offset = 0;
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let pos = 0;
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for (const chunk of chunks) {
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result.set(chunk, pos);
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pos += chunk.length;
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result.set(chunk, offset);
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offset += chunk.length;
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}
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return result;
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@ -126,43 +129,49 @@ function parseEmail(buffer) {
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const body = text.substring(headerEnd + 4);
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const boundaryMatch = header.match(/boundary="?([^"\r\n]+)"?/i);
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if (!boundaryMatch) return body.trim();
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const boundary = `--${boundaryMatch[1]}`;
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const parts = body.split(boundary);
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for (const part of parts) {
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if (part.includes("Content-Type: text/plain")) {
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const isBase64 = part.includes("Content-Transfer-Encoding: base64");
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const partBody = part.split("\r\n\r\n")[1]?.trim();
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if (!part.includes("Content-Type: text/plain")) continue;
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if (!partBody) continue;
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const partHeaderEnd = part.indexOf("\r\n\r\n");
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if (partHeaderEnd === -1) continue;
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if (isBase64) {
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try {
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const cleanBase64 = partBody.replace(/[\r\n\s]/g, "");
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return decodeBase64(cleanBase64);
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} catch {
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continue;
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}
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} else {
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return partBody;
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const partHeader = part.substring(0, partHeaderEnd);
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const partBody = part.substring(partHeaderEnd + 4).trim();
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if (!partBody) continue;
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if (partHeader.includes("Content-Transfer-Encoding: base64")) {
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try {
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const cleanBase64 = partBody.replace(/[\r\n\s]/g, "");
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return decodeBase64(cleanBase64);
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} catch {
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continue;
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}
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}
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return partBody;
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}
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return "";
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}
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function decodeBase64(base64) {
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const binary = atob(base64);
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const bytes = new Uint8Array(binary.length);
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try {
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const binary = atob(base64);
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const bytes = new Uint8Array(binary.length);
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for (let i = 0; i < binary.length; i++) {
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bytes[i] = binary.charCodeAt(i);
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for (let i = 0; i < binary.length; i++) {
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bytes[i] = binary.charCodeAt(i);
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}
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return new TextDecoder().decode(bytes);
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} catch (e) {
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return "";
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}
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return new TextDecoder().decode(bytes);
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}
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