private Task DeleteAsync(string key)
{
var url = $"https://rs.qbox.me/delete/{QiniuBase64.UrlSafeBase64Encode($"{options.Value.Bucket}:{key}")}";
AddAuthorization(url);
return(client.PostAsync(url, new ByteArrayContent(Array.Empty <byte>())));
}
private async Task BatchDeleteAsync(IEnumerable <string> keys)
{
var keyArray = keys as string[] ?? keys.ToArray();
if (keyArray.IsNullOrEmpty())
{
// Task.CompletedTask;
return;
}
var bucket = options.Value.Bucket;
var ops = keyArray.Select(k => $"/delete/{QiniuBase64.UrlSafeBase64Encode($"{bucket}:{k}")}");
// ReSharper disable once PossibleMultipleEnumeration
var opsStr = string.Join('&', ops.Select(k => $"op={k}"));
var url = $"https://rs.qiniu.com/batch";
var data = Encoding.UTF8.GetBytes(opsStr);
AddAuthorization(url, data);
// ReSharper disable once PossibleMultipleEnumeration
var content = new FormUrlEncodedContent(ops.Select(k => new KeyValuePair <string, string>("op", k)));
var response = await client.PostAsync(url, content);
Trace.WriteLine(await response.Content.ReadAsStringAsync());
}
/// <summary>
/// HTTP请求签名
/// </summary>
/// <param name="url">请求目标的URL</param>
/// <param name="body">请求的主体数据</param>
/// <returns></returns>
public string SignRequest(string url, byte[] body)
{
Uri u = new Uri(url);
string pathAndQuery = u.PathAndQuery;
byte[] pathAndQueryBytes = Encoding.UTF8.GetBytes(pathAndQuery);
using (MemoryStream buffer = new MemoryStream())
{
buffer.Write(pathAndQueryBytes, 0, pathAndQueryBytes.Length);
buffer.WriteByte((byte)'\n');
if (body != null && body.Length > 0)
{
buffer.Write(body, 0, body.Length);
}
#if WINDOWS_UWP
var hma = MacAlgorithmProvider.OpenAlgorithm(MacAlgorithmNames.HmacSha1);
var skBuffer = CryptographicBuffer.ConvertStringToBinary(mac.SecretKey, BinaryStringEncoding.Utf8);
var hmacKey = hma.CreateKey(skBuffer);
var dataBuffer = CryptographicBuffer.CreateFromByteArray(buffer.ToArray());
var signBuffer = CryptographicEngine.Sign(hmacKey, dataBuffer);
byte[] digest;
CryptographicBuffer.CopyToByteArray(signBuffer, out digest);
#else
HMACSHA1 hmac = new HMACSHA1(Encoding.UTF8.GetBytes(mac.SecretKey));
byte[] digest = hmac.ComputeHash(buffer.ToArray());
#endif
string digestBase64 = QiniuBase64.UrlSafeBase64Encode(digest);
return(string.Format("{0}:{1}", mac.AccessKey, digestBase64));
}
}
private string encodedSign(byte[] data)
{
#if WINDOWS_UWP
var hma = MacAlgorithmProvider.OpenAlgorithm(MacAlgorithmNames.HmacSha1);
var skBuffer = CryptographicBuffer.ConvertStringToBinary(mac.SecretKey, BinaryStringEncoding.Utf8);
var hmacKey = hma.CreateKey(skBuffer);
var dataBuffer = CryptographicBuffer.CreateFromByteArray(data);
var signBuffer = CryptographicEngine.Sign(hmacKey, dataBuffer);
byte[] digest;
CryptographicBuffer.CopyToByteArray(signBuffer, out digest);
#else
HMACSHA1 hmac = new HMACSHA1(Encoding.UTF8.GetBytes(mac.SecretKey));
byte[] digest = hmac.ComputeHash(data);
#endif
return(QiniuBase64.UrlSafeBase64Encode(digest));
}
/// <summary>
/// 附带数据的签名
/// </summary>
/// <param name="data">待签名的数据</param>
/// <returns></returns>
public string SignWithData(byte[] data)
{
string sstr = QiniuBase64.UrlSafeBase64Encode(data);
return(string.Format("{0}:{1}:{2}", mac.AccessKey, encodedSign(sstr), sstr));
}
