public ActionResult <dynamic> PostImages([FromBody] dynamic requestBody)
{
string authorization = Request.Headers["Authorization"];
string token = authorization.Substring("Bearer ".Length).Trim();
Int16 userId = _userService.GetUserId(token);
view_user user = _contextForView.view_user.FirstOrDefault(x => x.id == userId);
if (user == null)
{
throw new MindnoteException("你不是帳號的擁有者", HttpStatusCode.NotFound);
}
GoogleCredential gc = GoogleCredential.FromJson(_GCSCredential);
StorageClient client = StorageClient.Create(gc);
for (int i = 0; i < requestBody.base64Files.Count; i++)
{
//check all file content type;
string contentType = requestBody.base64Files[i].contentType.Value;
if (!contentType.StartsWith("image/"))
{
throw new MindnoteException("你上傳了非圖片的檔案");
}
}
// post to gcs
List <dynamic> result = new List <dynamic>();
for (int i = 0; i < requestBody.base64Files.Count; i++)
{
//check all file content type;
string base64Data = requestBody.base64Files[i].data.Value;
string contentType = requestBody.base64Files[i].contentType.Value;
string clientSideFlagId = requestBody.base64Files[i].clientSideFlagId != null ? requestBody.base64Files[i].clientSideFlagId.Value : "";
decimal width = -1;
if (requestBody.base64Files[i].width != null)
{
width = (decimal)requestBody.base64Files[i].width.Value;
}
decimal height = -1;
if (requestBody.base64Files[i].height != null)
{
height = (decimal)requestBody.base64Files[i].height.Value;
}
int nodeId = -1;
if (requestBody.base64Files[i].nodeId != null)
{
nodeId = (int)requestBody.base64Files[i].nodeId.Value;
}
string extensionFilename = ".jpg";
if (contentType == "image/jpg" || contentType == "image/jpeg")
{
extensionFilename = ".jpg";
}
else if (contentType == "image/png")
{
extensionFilename = ".png";
}
else if (contentType == "image/gif")
{
extensionFilename = ".gif";
}
else if (contentType == "image/bmp")
{
extensionFilename = ".bmp";
}
else
{
extensionFilename = contentType.Replace("image/", "");
}
string id = Guid.NewGuid().ToString("N");
MemoryStream stream = new MemoryStream(Convert.FromBase64String(base64Data));
Decimal size = stream.Length;
if ((user.storage_usage + size) / 1024 / 1024 > 200)
{
throw new MindnoteException("上傳的圖片已經超過免費使用者的上限 (200 M)，只要每月 99 元，就能享有 100 倍的上傳空間", HttpStatusCode.ExpectationFailed);
}
else if ((user.storage_usage + size) / 1024 / 1024 / 1024 > 20)
{
throw new MindnoteException("上傳的圖片已經超過付費使用者的上限 (20 G)，請聯繫管理員 [email protected]", HttpStatusCode.InternalServerError);
}
Google.Apis.Storage.v1.Data.Object resultFromGCS = client.UploadObject(_GCSBucketName, id + extensionFilename, contentType, stream, new UploadObjectOptions()
{
UserProject = _GCPProjectId,
});
JSONResponseStatus status = JSONResponseStatus.OK;
if (resultFromGCS.Name == null)
{
status = JSONResponseStatus.FAILED;
}
dynamic resultItem = new ExpandoObject();
resultItem.status = Enum.GetName(typeof(JSONResponseStatus), status);
resultItem.filename = resultFromGCS.Name;
resultItem.clientSideFlagId = clientSideFlagId ?? "";
resultItem.nodeId = nodeId;
resultItem.size = resultFromGCS.Size;
resultItem.width = width;
resultItem.height = height;
result.Add(resultItem);
}
// check gcs result and save local db
for (int i = 0; i < result.Count; i++)
{
if (result[i].status == Enum.GetName(typeof(JSONResponseStatus), JSONResponseStatus.OK))
{
image image = new image
{
owner_id = userId,
filename = result[i].filename,
size = result[i].size,
};
if (result[i].width != -1)
{
image.width = result[i].width;
}
if (result[i].height != -1)
{
image.height = result[i].height;
}
if (result[i].nodeId != -1)
{
image.node_id = result[i].nodeId;
}
result[i].imageContext = image;
_context.image.Add(image);
}
}
_context.SaveChanges();
return(result);
}
public static string getJSONResponseText(JSONResponseStatus enumStatus)
{
return(enumStatus.ToString());
}
public JSONResponse(JSONResponseStatus status, dynamic data)
{
this.status = status;
this.data = data;
}
