Diagnóstico de Cloudflare R2

Verificando credenciales:
Account ID: 59dacfc6bd...ea44 (longitud: 32)
Access Key: 2ca7b68780...b2ee (longitud: 32)
Secret Key: 93083a07af...15cb (longitud: 64)
Bucket: speedy

Verificando extensiones PHP:
cURL: ✅ Habilitado
OpenSSL: ✅ Habilitado

Endpoint construido:
URL: https://59dacfc6bd799d5c0a9f77e5be29ea44.r2.cloudflarestorage.com/speedy/

Prueba 1: Verificando conectividad básica
HTTP Code: 400
✅ Conexión establecida

Prueba 2: Probando autenticación AWS Signature V4
HTTP Code: 200
✅ AUTENTICACIÓN EXITOSA!
Respuesta:

HTTP/1.1 200 OK
Date: Wed, 22 Apr 2026 01:18:05 GMT
Content-Type: application/xml
Content-Length: 362837
Connection: keep-alive
Server: cloudflare
CF-RAY: 9f00cadf69daaee6-DFW

<?xml version="1.0" encoding="UTF-8"?><ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Name>speedy</Name><Contents><Key>imagenes/.JPEG</Key><Size>0</Size><LastModified>2026-03-30T19:33:48.553Z</LastModified><Owner><ID>59dacfc6bd799d5c0a9f77e5be29ea44</ID><DisplayName>59dacfc6bd799d5c0a9f77e5be29e

Prueba 3: Intentando listar buckets
HTTP Code: 403
Respuesta:

<?xml version="1.0" encoding="UTF-8"?><Error><Code>SignatureDoesNotMatch</Code><Message>The request signature we calculated does not match the signature you provided. Check your secret access key and signing method.</Message><StringToSign>AWS4-HMAC-SHA256
20260422T011805Z
20260422/auto/s3/aws4_request
2ffc69765c503fb9fdb6a0643db277c432aad1e77829d5439b5a5ac847c19d26</StringToSign><StringToSignBytes>41 57 53 34 2d 48 4d 41 43 2d 53 48 41 32 35 36 0a 32 30 32 36 30 34 32 32 54 30 31 31 38 30 35 5a 0a 32 30 32 36 30 34 32 32 2f 61 75 74 6f 2f 73 33 2f 61 77 73 34 5f 72 65 71 75 65 73 74 0a 32 66 66 63 36 39 37 36 35 63 35 30 33 66 62 39 66 64 62 36 61 30 36 34 33 64 62 32 37 37 63 34 33 32 61 61 64 31 65 37 37 38 32 39 64 35 34 33 39 62 35 61 35 61 63 38 34 37 63 31 39 64 32 36</StringToSignBytes><CanonicalRequest>GET
/

host:59dacfc6bd799d5c0a9f77e5be29ea44.r2.cloudflarestorage.com
x-amz-content-sha256:UNSIGNED-PAYLOAD
x-amz-date:20260422T011805Z

host;x-amz-content-sha256;x-amz-date
UNSI