public static Uri GenerateBlobFileSasLink(this string containerName, string blobName,
TimeSpan?lifespan = default(TimeSpan?))
{
var expiresOn = lifespan.HasValue ?
DateTime.UtcNow + lifespan.Value
:
DateTime.UtcNow.AddMinutes(15);//default SAS token expire after 15 minutes.
var blobSasBuilder = new BlobSasBuilder()
{
BlobContainerName = containerName,
BlobName = blobName,
ExpiresOn = expiresOn,
};
blobSasBuilder.SetPermissions(BlobSasPermissions.Write);
var azureDriver = AzureTableDriverDynamic.FromSettings();
var blobClient = azureDriver.BlobClient;
var sharedKeyCredential = azureDriver.StorageSharedKeyCredential;
var sasToken = blobSasBuilder.ToSasQueryParameters(sharedKeyCredential).ToString();
var sasUrl = blobClient.Uri
.AppendToPath(containerName)
.AppendToPath(blobName)
.SetQuery(sasToken);
return(sasUrl);
}
public virtual Task <IHttpResponse> InstigatorDelegateGeneric(Type type,
IApplication httpApp, IHttpRequest routeData, ParameterInfo parameterInfo,
Func <object, Task <IHttpResponse> > onSuccess)
{
var constructor = typeof(StorageQuery <>)
.MakeGenericType(type.GenericTypeArguments)
.GetConstructors(BindingFlags.Public | BindingFlags.Instance)
.First();
var parameter = AzureTableDriverDynamic.FromSettings();
var sq = constructor.Invoke(parameter.AsArray());
return(onSuccess(sq));
}
public static Func <Task <T> > GetLookupDelegate <T>(MemberInfo memberInfo,
string rowKey, string partitionKey, IProvideEntity entityProvider)
{
var repository = AzureTableDriverDynamic.FromSettings();
var tableName = StorageLookupAttribute.GetMemberTableName(memberInfo);
// var tableRef = repository.TableClient.GetTableReference(tableName);
Func <Task <T> > lookupDelegate = () =>
repository.FindByIdAsync <T, T>(rowKey, partitionKey,
onFound: (resource, tr) => resource,
onNotFound: () =>
{
if (typeof(T).IsArray)
{
return((T)typeof(T)
.GetElementType()
.ConstructEmptyArray());
}
return(default(T));
},
tableName: tableName,
entityProvider: entityProvider);
return(lookupDelegate);
}
public static IEnumerable <StorageTable> DiscoverStorageResources(Type appType)
{
var limitedAssemblyQuery = appType
.GetAttributesInterface <IApiResources>(inherit: true, multiple: true);
Func <Assembly, bool> shouldCheckAssembly =
(assembly) =>
{
return(limitedAssemblyQuery
.First(
(limitedAssembly, next) =>
{
if (limitedAssembly.ShouldCheckAssembly(assembly))
{
return true;
}
return next();
},
() => false));
};
var driver = AzureTableDriverDynamic.FromSettings();
return(AppDomain.CurrentDomain.GetAssemblies()
.Where(shouldCheckAssembly)
.SelectMany(
a =>
{
try
{
return a.GetTypes();
} catch (Exception)
{
return new Type[] { };
}
})
.SelectMany(
(type) =>
{
return type
.GetAttributesInterface <IProvideTable>()
.Select(
tableProvider =>
{
var table = tableProvider.GetTable(type, driver.TableClient);
var properties = type
.StorageProperties()
.Select(
propInfoAttribute =>
{
var propInfo = propInfoAttribute.Key;
var name = propInfo.GetTablePropertyName();
var memberType = propInfo.GetMemberType();
return new StorageProperty()
{
name = name,
type = memberType,
member = propInfo,
};
})
.ToArray();
return new StorageTable
{
name = table.Name,
properties = properties,
type = type,
cloudTable = table,
};
});
}));
}