Delete functions/upload.js
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const API_URL = 'https://catbox.moe/user/api.php';
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const R2_PUBLIC_URL = 'https://cucks.qzz.io';
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const R2_ENDPOINT = 'https://faae2f5c0a232c7f3733ef597c55bd69.r2.cloudflarestorage.com';
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const R2_BUCKET = 'monochrome-image-uploads';
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async function hmac(key, data) {
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const cryptoKey = await crypto.subtle.importKey('raw', key, { name: 'HMAC', hash: 'SHA-1' }, false, ['sign']);
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return new Uint8Array(await crypto.subtle.sign('HMAC', cryptoKey, data));
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}
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async function sha256(data) {
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return new Uint8Array(await crypto.subtle.digest('SHA-256', data));
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}
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function buf2hex(buffer) {
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return Array.from(buffer)
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.map((b) => b.toString(16).padStart(2, '0'))
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.join('');
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}
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async function signature(secretKey, dateStamp, region, service, stringToSign) {
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const kDate = await hmac(new TextEncoder().encode('AWS4' + secretKey), new TextEncoder().encode(dateStamp));
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const kRegion = await hmac(kDate, new TextEncoder().encode(region));
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const kService = await hmac(kRegion, new TextEncoder().encode(service));
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const kSigning = await hmac(kService, new TextEncoder().encode('aws4_request'));
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const sig = await hmac(kSigning, new TextEncoder().encode(stringToSign));
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return buf2hex(sig);
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}
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async function createSignature(method, path, headers, payloadHash, accessKeyId, secretAccessKey, amzDate, dateStamp) {
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const region = 'auto';
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const service = 's3';
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const signedHeaders = Object.keys(headers).sort().join(';');
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const canonicalHeaders =
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Object.entries(headers)
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.sort((a, b) => a[0].localeCompare(b[0]))
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.map(([k, v]) => `${k.toLowerCase()}:${v}`)
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.join('\n') + '\n';
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const canonicalRequest = `${method}\n${path}\n\n${canonicalHeaders}\n${signedHeaders}\n${payloadHash}`;
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const credentialScope = `${dateStamp}/${region}/${service}/aws4_request`;
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const stringToSign = `AWS4-HMAC-SHA256\n${amzDate}\n${credentialScope}\n${buf2hex(await sha256(new TextEncoder().encode(canonicalRequest)))}`;
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const sig = await signature(secretAccessKey, dateStamp, region, service, stringToSign);
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return `AWS4-HMAC-SHA256 Credential=${accessKeyId}/${credentialScope}, SignedHeaders=${signedHeaders}, Signature=${sig}`;
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}
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export async function onRequest(context) {
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const { request, env } = context;
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if (request.method === 'OPTIONS') {
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return new Response(null, { status: 204, headers: corsHeaders() });
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}
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if (request.method !== 'POST') {
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return jsonError('Method not allowed', 405);
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}
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const useR2 = env.R2_ENABLED === 'true';
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try {
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const contentType = request.headers.get('content-type') || '';
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let file;
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let fileName;
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let fileType;
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if (contentType.includes('application/json')) {
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const body = await request.json();
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if (!body.fileUrl) return jsonError('No fileUrl provided', 400);
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const res = await fetch(body.fileUrl);
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if (!res.ok) throw new Error('Failed to fetch remote file');
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file = await res.arrayBuffer();
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fileName = body.fileName || body.fileUrl.split('/').pop();
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fileType = res.headers.get('content-type') || 'application/octet-stream';
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} else {
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const form = await request.formData();
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const uploaded = form.get('file');
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if (!uploaded) return jsonError('No file provided', 400);
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if (uploaded.size > 10 * 1024 * 1024) {
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return jsonError('File exceeds 10MB', 400);
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}
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file = await uploaded.arrayBuffer();
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fileName = uploaded.name;
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fileType = uploaded.type || 'application/octet-stream';
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}
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let url;
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if (useR2) {
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try {
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const key = `${Date.now()}-${fileName}`;
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const now = new Date();
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const amzDate =
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now
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.toISOString()
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.replace(/[:-]|\.\d{3}/g, '')
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.slice(0, 15) + 'Z';
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const dateStamp = now
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.toISOString()
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.replace(/[:-]|\.\d{3}/g, '')
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.slice(0, 8);
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const payloadHash = buf2hex(await sha256(file));
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const host = new URL(R2_ENDPOINT).host;
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const headers = {
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'Content-Type': fileType,
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'Content-Length': file.byteLength,
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'x-amz-date': amzDate,
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'x-amz-content-sha256': payloadHash,
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Host: host,
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};
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const auth = await createSignature(
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'PUT',
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`/${R2_BUCKET}/${key}`,
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headers,
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payloadHash,
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env.R2_ACCESS_KEY_ID,
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env.R2_SECRET_ACCESS_KEY,
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amzDate,
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dateStamp
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);
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headers['Authorization'] = auth;
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const res = await fetch(`${R2_ENDPOINT}/${R2_BUCKET}/${key}`, {
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method: 'PUT',
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headers,
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body: new Uint8Array(file),
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});
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if (!res.ok) {
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const err = await res.text();
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throw new Error(`R2 error: ${res.status} - ${err}`);
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}
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url = `${R2_PUBLIC_URL}/${key}`;
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} catch (r2Err) {
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console.error('R2 upload error:', r2Err);
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return jsonError(`R2 upload failed: ${r2Err.message}`, 500);
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}
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} else {
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const formData = new FormData();
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formData.append('reqtype', 'fileupload');
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formData.append('fileToUpload', new Blob([file], { type: fileType }), fileName);
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const response = await fetch(API_URL, {
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method: 'POST',
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body: formData,
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});
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const responseText = await response.text();
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if (!response.ok) {
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throw new Error(`Upload failed: ${responseText}`);
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}
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url = responseText.trim();
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}
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return jsonResponse({
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success: true,
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url: url,
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});
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} catch (err) {
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return jsonError(err.message, 500);
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}
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}
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function jsonResponse(obj, status = 200) {
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return new Response(JSON.stringify(obj), {
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status,
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headers: {
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'Content-Type': 'application/json',
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...corsHeaders(),
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},
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});
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}
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function jsonError(message, status) {
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return jsonResponse({ success: false, error: message }, status);
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}
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function corsHeaders() {
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return {
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'Access-Control-Allow-Origin': '*',
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'Access-Control-Allow-Methods': 'POST, OPTIONS',
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'Access-Control-Allow-Headers': '*',
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};
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}
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