Skip to main content

Gzip upload on browsers



Today, I faced a problem that I could not upload my archive file with gzip format on Firefox, even it worked on Chrome. I was using macOS. My application had a setting to whitelist accepted files. I’ve already added "application/gzip" to that list. "It’s strange!", I thought.

I finally figured out that my uploaded file's type actually was "application/x-gzip" on Firefox. I also asked my colleagues to check their uploaded files on Window and Ubuntu. Hmm… they were totally different! It was "application/x-compressed" on Window, and was "application/x-compressed-tar" on Ubuntu.

In fact, gzip is already standardized by IANA. There is a note in RFC-6713 as below:

"Some applications have informally used media types such as application/gzip-compressed, application/gzipped, application/x-gunzip, application/x-gzip, application/x-gzip-compressed, and gzip/document to describe data compressed with gzip. The media types defined in this document should replace those media types in future applications."

As you can see, the difference of media types among browsers still persists as of this writing. That was the root cause!

Therefore, I had to added all media types including "application/zip,application/x-gzip,application/x-compressed,application/x-compressed-tar" in my app's whitelist.
Labels:

Comments

  1. thongmleApril 19, 2020 at 2:23 AM

    anh làm một blog về sự quan trọng của tiếng anh ( speaking, writing ) đi anh. Một dev có được skill viết như anh thì có được đãi ngộ gì đặc biệt hơn kh ạ

    ReplyDelete
    Replies
    1. Huong NguyenApril 23, 2020 at 9:09 AM

      Để mình kể cho bạn nghe câu chuyện học tiếng Anh của mình để xem nó quan trọng thế nào với mình nhé. Thực ra, ban đầu động lực học tiếng Anh duy nhất của mình là cố gắng "sống sót" trong môi trường làm việc sử dụng tiếng Anh để giao tiếp. Lúc đó, trong team mình còn "bị đánh giá" là hạng D (trong thang điểm A, B, C, D). Ghê chưa! Nhìn xung quanh sao người ta ai cũng giỏi, ai cũng hay quá, thế là mình hạ quyết tâm học cho bằng được. Trong lúc người ta còn ngủ, mình phải dậy sớm học tiếng Anh; trong lúc người ta nghỉ trưa, mình học tiếng Anh; và trong lúc người ta đi xem phim tối, mình học tiếng Anh. Trong vòng 6 tháng như vậy thì mình đã tự tin ra hẳn, nói được và nghe được. Từ đó, mình cảm thấy tiếng Anh là một thứ gì đó không thể thiếu hằng ngày. Mình có thể đọc sách tiếng Anh, xem phim tiếng Anh, học khoá học tiếng Anh, đi meetup nói tiếng Anh, vân vân. Vậy là khi thành thạo nó thì bây giờ nó trở thành công cụ giúp mình tiếp nhận rất nhiều thông tin, học hỏi được nhiều thứ, và "enjoy" cuộc sống nhiều hơn.

      Trong môi trường sử dụng tiếng Anh để giao tiếp, nếu bạn có tiếng Anh tốt thì bạn mới giao tiếp tốt. Ngôn ngữ cũng giống như protocol trong phần mềm. Bạn phải hiểu và sử dụng đúng protocol thì hệ thống mới hoạt động đúng. Bạn giỏi tiếng Anh, bạn tự tin khi giao tiếp với khách hàng, bạn tự tin viết tài liệu, bạn tư tin xông pha học cái mới, bạn tự tin khi thuyết trình, vân vân. Bạn sẽ được giao nhiều việc quan trọng và mang lại nhiều giá trị cho công ty. Như vậy, vì cái "dich vụ" của bạn quá tốt, chắc chắn bạn phải thoả thuận được "giá cao". :)

      Delete

Post a Comment

Popular posts from this blog

Junit - Test fails on French or German string assertion

In my previous post about building a regex to check a text without special characters but allow German and French . I met a problem that the unit test works fine on my machine using Eclipse, but it was fail when running on Jenkins' build job. Here is my test: @Test public void shouldAllowFrenchAndGermanCharacters(){ String source = "ÄäÖöÜüß áÁàÀâÂéÉèÈêÊîÎçÇ"; assertFalse(SpecialCharactersUtils.isExistSpecialCharater(source)); } Production code: public static boolean isExistNotAllowedCharacters(String source){ Pattern regex = Pattern.compile("^[a-zA-Z_0-9_ÄäÖöÜüß áÁàÀâÂéÉèÈêÊîÎçÇ]*$"); Matcher matcher = regex.matcher(source); return !matcher.matches(); } The result likes the following: Failed tests: SpecialCharactersUtilsTest.shouldAllowFrenchAndGermanCharacters:32 null A guy from stackoverflow.com says: "This is probably due to the default encoding used for your Java source files. The ö in the string literal in the J...
5 comments
Read more

How to apply Lean - Kanban for your business

This is the topic of Scrum Breakfast meetup this time, speaker: Ms. Phuong Bui - Technical Project Manager of YOOSE Pte. Ltd. http://www.meetup.com/Scrum-Breakfast-Vietnam-Agile-and-Scrum-Meetup/events/230313727/ Lean comes from Lean manufacturing is a method that focuses on elimination of wastes. In other words, this is a set of principles for archiving the quality, speed and customer alignment. The first time I knew about the term "Lean" is  from the book Software Craftsmanship . Sandro recommends if we want to transform our pet projects into a real business, we should get familiar with Lean Startup concepts. In this talk, Ms. Phuong pointed out some major wastes includes information (ex: unclear requirements), processes (ex: waiting), physical environment and people. Knowing what the problems should be the best way to eliminate them. The difference between  Single item flow and Batch processing is the second main point; and it is the Lean's idea. Batch pr...
Post a Comment
Read more

The HelloWorld example of JSF 2.2 with Myfaces

I just did by myself create a very simple app "HelloWorld" of JSF 2.2 with a concrete implementation Myfaces that we can use it later on for our further JSF trying out. I attached the source code link at the end part. Just follow these steps below: 1. Create a Maven project in Eclipse (Kepler) with a simple Java web application archetype "maven-archetype-webapp". Maven should be the best choice for managing the dependencies , so far. JSF is a web framework that is the reason why I chose the mentioned archetype for my example. 2. Import dependencies for JSF implementation - Myfaces (v2.2.10) into file pom.xml . The following code that is easy to find from  http://mvnrepository.com/  with key words "myfaces". <dependency> <groupId>org.apache.myfaces.core</groupId> <artifactId>myfaces-api</artifactId> <version>2.2.10</version> </dependency> <dependency> <groupId>org.apache.myfaces.core<...
Post a Comment
Read more

Installing NGINX on macOS

I have heard of a lot of NGINX recently. One of them was it can help for security issues; for sure, it much be more. It so happens that our team has got a ton of user stories from a security audit. It's time to delve into it. What is NGINX? In order to get a basic idea and have some fun , I've just picked some available posts from my favorite Vietnamese blogger communities as below: https://kipalog.com/posts/Cau-hinh-nginx-co-ban---Phan-1 https://viblo.asia/hoang.thi.tuan.dung/posts/ZabG912QGzY6 NGINX (pronounce: Engine-X) is a web server (comparing to IIS, Apache). It can be used as a reverse proxy ( this is what I need for security issues with configuration ), load balancer and more. How to get started? I found the below path for learning NGINX by googling "learn nginx": https://www.quora.com/What-are-some-good-online-resources-to-learn-Nginx In this post, I only went first step. This is installing NGINX on macOS and taking a first look at the confi...
Post a Comment
Read more

MS SQL Server Views

"Creates a virtual table whose contents (columns and rows) are defined by a query. Use this statement to create a view of the data in one or more tables in the database. For example, a view can be used for the following purposes: - To focus, simplify, and customize the perception each user has of the database. - As a security mechanism by allowing users to access data through the view, without granting the users permissions to directly access the underlying base tables. - To provide a backward compatible interface to emulate a table whose schema has changed." [1] Beside that, our team used view in order to improve the performance of our web apps when a database has a very complicated relationship between its tables by using ORM Frameworks such as Hibernate. Example code: --create CREATE VIEW placeholders AS SELECT EMPKEY AS empkey, CONNUMB AS connumb, EMPNBR AS empNbr, ACEEMPN AS empFirstName, ACEEMPFN AS empLastName, EMPNAM AS empFullName, ...
Post a Comment
Read more