static async Task WritingAnObject(S3SettingsBo settings, S3FileBo file)
{
try
{
PutObjectRequest request = new PutObjectRequest()
{
//ContentBody = System.Text.Encoding.UTF8.GetString(file.Content),
ContentType = ContentTypeHelper.GetMimeType(file.Name),
InputStream = new MemoryStream(file.Content),
BucketName = settings.Bucket,
Key = file.Link.Replace($"{settings.Address}/", ""),
CannedACL = S3CannedACL.PublicRead,
ServerSideEncryptionMethod = ServerSideEncryptionMethod.AES256
};
System.Net.Mime.ContentDisposition cd = new System.Net.Mime.ContentDisposition
{
FileName = file.Name,
Inline = ContentTypeHelper.FileIsInline(file.Name) // false = prompt the user for downloading; true = browser to try to show the file inline
};
request.Headers.ContentDisposition = cd.ToString();
request.Headers.CacheControl = "max-age=31536000";
var result = await client.PutObjectAsync(request);
if (result.HttpStatusCode != System.Net.HttpStatusCode.OK)
{
throw new Exception($"An error occurred with the code '{result.HttpStatusCode}' when writing an object");
}
}
catch (AmazonS3Exception amazonS3Exception)
{
if (amazonS3Exception.ErrorCode != null &&
(amazonS3Exception.ErrorCode.Equals("InvalidAccessKeyId") ||
amazonS3Exception.ErrorCode.Equals("InvalidSecurity")))
{
throw new Exception("Please check the provided AWS Credentials.");
}
else
{
throw new Exception($"An error occurred with the message '{amazonS3Exception.Message}' when writing an object");
}
}
}
public async Task <ActionResult> Get(string fileKey)
{
// cases:
// return file content
// redirect to s3
// redirect to main file service
// file not found
try
{
var file = await this._fileAppService.Get(fileKey);
if (file.StorageType == StorageType.S3)
{
return(new RedirectResult(file.Link));
}
System.Net.Mime.ContentDisposition cd = new System.Net.Mime.ContentDisposition
{
FileName = HttpUtility.UrlEncode(file.Name, Encoding.UTF8).Replace("+", " ").Replace("%2b", "+"),
Inline = ContentTypeHelper.FileIsInline(file.Name) // false = prompt the user for downloading; true = browser to try to show the file inline
};
Response.Headers.Add("Content-Disposition", cd.ToString());
Response.Headers.Add("X-Content-Type-Options", "nosniff");
Response.Headers.Add("cache-control", "max-age=31536000");
return(File(file.Content, ContentTypeHelper.GetMimeType(file.Name), DateTimeOffset.Now.AddSeconds(1), new EntityTagHeaderValue(new Microsoft.Extensions.Primitives.StringSegment("\"inline\""))));
}
catch (FileKeyNotFoundException ex)
{
if (await this._configService.GetBool("IsMainServer"))
{
throw ex;
}
else
{
var url = await this._configService.Get("MainServiceUrl");
return(new RedirectResult($"{url}/{fileKey}"));
// redirect to main file service
}
}
}