public int GetMinutesRemaining(bool untilStart)
{
TimeSpan ts = untilStart ? StartTime.Subtract(DateTime.Now) : ExpireTime.Subtract(DateTime.Now);
int days = ts.Days, hours = ts.Hours, mins = ts.Minutes;
return((days * 1440) + (hours * 60) + ts.Minutes);
}
public Uri Create(RequestContext requestContext)
{
Ensure.ToBeTrue(ExpireTime > DateTime.UtcNow);
Ensure.ToBeTrue(HttpMethod == HttpMethod.Get || HttpMethod == HttpMethod.Put, "不支持的http method"); //只支持这两种
var method = HttpMethod.ToString().ToUpperInvariant();
var expire = ((long)ExpireTime.Subtract(EpicTime).TotalSeconds).ToString(); //UNIX 时间戳
// 要额外签名的数据
var headers = new Dictionary <string, string>();
if (UserMetadata != null)
{
foreach (var pair in UserMetadata)
{
headers.Add(OssHeaders.OssUserMetaPrefix + pair.Key, pair.Value);
}
}
var canonicalHeaders = SignatureHelper.ComputeCanonicalizedOSSHeaders(headers); //? 以STS获得的AccessKeyId和AccessKeySecret发送时，是否考虑SecurityToken的处理？
//
var parameters = new Dictionary <string, string>();
if (requestContext.OssCredential.UseToken)
{
parameters.Add(RequestParameters.SECURITY_TOKEN, requestContext.OssCredential.SecurityToken);
}
ResponseHeaderOverrides?.Populate(parameters);
var canonicalResource = SignatureHelper.BuildCanonicalizedResource(Bucket, ObjectKey, parameters);
//var canonicalResource = "/" + (Bucket ?? "") + ((ObjectKey != null ? "/" + ObjectKey : ""));
//签名
var sign = SignatureHelper.HmacSha1Sign(requestContext.OssCredential.AccessKeySecret, method, ContentMd5, ContentType, expire, canonicalHeaders,
canonicalResource);
// URL 参数
var urlParams = new Dictionary <string, string>();
urlParams.Add(RequestParameters.EXPIRES, expire);
urlParams.Add(RequestParameters.OSS_ACCESS_KEY_ID, requestContext.OssCredential.AccessKeyId);
urlParams.Add(RequestParameters.SIGNATURE, sign);
foreach (var pair in parameters)
{
urlParams.Add(pair.Key, pair.Value);
}
var queryString = HttpUtils.CombineQueryString(urlParams);
// 生成最终的URI
var uriString = Bucket.GetObjectUrl(ObjectKey) + "?" + queryString;
return(new Uri(uriString));
}
public TimeSpan GetTimeRemaining(bool untilStart)
{
return(untilStart ? StartTime.Subtract(DateTime.Now) : ExpireTime.Subtract(DateTime.Now));
}