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Posted to dev@tomcat.apache.org by bu...@apache.org on 2016/04/08 05:45:04 UTC
[Bug 59288] New: Is it possible to add the support of tus protocol
within Tomcat?
https://bz.apache.org/bugzilla/show_bug.cgi?id=59288
Bug ID: 59288
Summary: Is it possible to add the support of tus protocol
within Tomcat?
Product: Tomcat 9
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: anita314159@gmail.com
Problem statement: HTTP sucks for file uploads.
You know it. I know it. The problems?
1. No resuming
2. POST multipart/form-data bloats the size of the file due to encoding
3. Slow connections typically time out on large files
4. Any server resets or any other network "burps" on the path from client to
server effectively kills the upload
5. People have had moderate success by tuning their webserver and JSP/Servlet
to accept large POSTs, and in general, it works - but not for everyone and it
suffers from everything previously noted.
http://tus.io/
tus is a new open protocol for resumable uploads built on HTTP. It offers
simple, cheap and reusable stacks for clients and servers to solve the problem
of unreliable file uploads once and for all.
Currently, there are only two implementations of server side --- Go and
Node.js. I wish the popular server --- Tomcat which is also my favorite can
also implement this new file transfer protocol in the new release version, too.
---
Anita
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[Bug 59288] Is it possible to add the support of tus protocol within
Tomcat?
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59288
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |WONTFIX
--- Comment #5 from Mark Thomas <ma...@apache.org> ---
This will not be supported (directly) in Tomcat.
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[Bug 59288] Is it possible to add the support of tus protocol within
Tomcat?
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59288
--- Comment #2 from Mark Thomas <ma...@apache.org> ---
This looks like something you'd want to implement in a Commons FileUpload type
library that you could re-use across any Servlet container rather than
something to implement directly in Tomcat.
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[Bug 59288] Is it possible to add the support of tus protocol within
Tomcat?
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59288
--- Comment #4 from Anita <an...@gmail.com> ---
(In reply to Mark Thomas from comment #2)
> This looks like something you'd want to implement in a Commons FileUpload
> type library that you could re-use across any Servlet container rather than
> something to implement directly in Tomcat.
Thanks for Mark Thomas comments. It's a good idea for implementing it on the
library level instead of web server level if there is no other consideration
issues exist.
I use Mark Thomas's suggestion to create an issue on Commons FileUpload library
https://issues.apache.org/jira/browse/FILEUPLOAD-271
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[Bug 59288] Is it possible to add the support of tus protocol within
Tomcat?
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59288
--- Comment #3 from Anita <an...@gmail.com> ---
(In reply to Christopher Schultz from comment #1)
Thanks for Christopher Schultz's reply comments.
> So... what client is going to bother to implement this? Is the expectation
> that mostly this will be used by custom mobile clients instead of your
> run-of-the-mill web browser?
It already has several implementations (samples and components) on client side
of Javascript, Java, Android and iOS.
http://tus.io/implementations.html
The implementation of client side for web browser may use the Javascript
version.
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[Bug 59288] Is it possible to add the support of tus protocol within
Tomcat?
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59288
--- Comment #1 from Christopher Schultz <ch...@christopherschultz.net> ---
(In reply to Anita from comment #0)
> Problem statement: HTTP sucks for file uploads.
> You know it. I know it.
??
> The problems?
>
> 1. No resuming
This isn't a protocol problem; it's a tool problem. HTTP POST theoretically
supports the "Range" header.
There is a discussion on SO about this:
http://stackoverflow.com/questions/1830130/resume-uploads-using-http
> 2. POST multipart/form-data bloats the size of the file due to encoding
Very little bloat. It's not like it uses base64 encoding or anything like that.
> 3. Slow connections typically time out on large files
Nothing can fix this. Resumability is the only real cure, and you've listed
that one already.
> 4. Any server resets or any other network "burps" on the path from client to
> server effectively kills the upload
Resumability.
> 5. People have had moderate success by tuning their webserver and
> JSP/Servlet to accept large POSTs, and in general, it works - but not for
> everyone and it suffers from everything previously noted.
Resumability.
> http://tus.io/
>
> tus is a new open protocol for resumable uploads built on HTTP. It offers
> simple, cheap and reusable stacks for clients and servers to solve the
> problem of unreliable file uploads once and for all.
Okay, so it trades Content-Length and Range for Upload-Offset and
Upload-Length. I suppose this might be better when using old proxies that like
to veto odd-looking "standard" requests, but will happily pass-through
unrecognized headers.
> Currently, there are only two implementations of server side --- Go and
> Node.js. I wish the popular server --- Tomcat which is also my favorite can
> also implement this new file transfer protocol in the new release version,
> too.
So... what client is going to bother to implement this? Is the expectation that
mostly this will be used by custom mobile clients instead of your
run-of-the-mill web browser?
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