public static string CreateContainerSasToken(
string accountName,
string containerName,
string key,
SasAccessType accessType,
int validityTimeInDays)
{
string signedPermissions = string.Empty;
switch (accessType)
{
case SasAccessType.Read:
signedPermissions = "r";
break;
case SasAccessType.Write:
signedPermissions = "wdl";
break;
default:
throw new ArgumentOutOfRangeException(nameof(accessType), accessType, "Unrecognized value");
}
string signedStart = DateTime.UtcNow.ToString("O");
string signedExpiry = DateTime.UtcNow.AddDays(validityTimeInDays).ToString("O");
string canonicalizedResource = "/blob/" + accountName + "/" + containerName;
string signedIdentifier = string.Empty;
string signedVersion = StorageApiVersion;
string stringToSign = ConstructServiceStringToSign(
signedPermissions,
signedVersion,
signedExpiry,
canonicalizedResource,
signedIdentifier,
signedStart);
byte[] signatureBytes = Encoding.UTF8.GetBytes(stringToSign);
string signature;
using (HMACSHA256 hmacSha256 = new HMACSHA256(Convert.FromBase64String(key)))
{
signature = Convert.ToBase64String(hmacSha256.ComputeHash(signatureBytes));
}
string sasToken = string.Format(
"?sv={0}&sr={1}&sig={2}&st={3}&se={4}&sp={5}",
WebUtility.UrlEncode(signedVersion),
WebUtility.UrlEncode("c"),
WebUtility.UrlEncode(signature),
WebUtility.UrlEncode(signedStart),
WebUtility.UrlEncode(signedExpiry),
WebUtility.UrlEncode(signedPermissions));
return(sasToken);
}
public static string CreateContainerSasToken(
string accountName,
string containerName,
string key,
SasAccessType accessType,
int validityTimeInDays)
{
string signedPermissions = string.Empty;
switch (accessType)
{
case SasAccessType.Read:
signedPermissions = "r";
break;
case SasAccessType.Write:
signedPermissions = "wdl";
break;
default:
throw new ArgumentOutOfRangeException(nameof(accessType), accessType, "Unrecognized value");
}
string signedStart = DateTime.UtcNow.ToString("O");
string signedExpiry = DateTime.UtcNow.AddDays(validityTimeInDays).ToString("O");
string canonicalizedResource = "/blob/" + accountName + "/" + containerName;
string signedIdentifier = string.Empty;
string signedVersion = StorageApiVersion;
string stringToSign = ConstructServiceStringToSign(
signedPermissions,
signedVersion,
signedExpiry,
canonicalizedResource,
signedIdentifier,
signedStart);
byte[] signatureBytes = Encoding.UTF8.GetBytes(stringToSign);
string signature;
using (HMACSHA256 hmacSha256 = new HMACSHA256(Convert.FromBase64String(key)))
{
signature = Convert.ToBase64String(hmacSha256.ComputeHash(signatureBytes));
}
string sasToken = string.Format(
"?sv={0}&sr={1}&sig={2}&st={3}&se={4}&sp={5}",
WebUtility.UrlEncode(signedVersion),
WebUtility.UrlEncode("c"),
WebUtility.UrlEncode(signature),
WebUtility.UrlEncode(signedStart),
WebUtility.UrlEncode(signedExpiry),
WebUtility.UrlEncode(signedPermissions));
return sasToken;
}
private static string GetFullFileName(SasAccessType sasAccessType)
{
var fileName = Guid.NewGuid();
string fileExtension;
switch (sasAccessType)
{
case SasAccessType.Design:
case SasAccessType.ProfileImage:
fileExtension = ".jpg";
break;
case SasAccessType.Model:
fileExtension = ".glb";
break;
default:
throw new ArgumentOutOfRangeException(nameof(sasAccessType), sasAccessType, null);
}
return($"{fileName}{fileExtension}");
}
private static string GetBlobNamePath(SasAccessType sasAccessType)
{
var blobNamePath = "";
switch (sasAccessType)
{
case SasAccessType.Design:
blobNamePath = "images";
break;
case SasAccessType.Model:
blobNamePath = "models";
break;
case SasAccessType.ProfileImage:
blobNamePath = "profile_images";
break;
default:
throw new ArgumentOutOfRangeException(nameof(sasAccessType), sasAccessType, null);
}
return(blobNamePath);
}
