Currently Google-Engineers plan pushing HTTP/3. As HTTP/2 still is not used commonly worldwide and major implementation flaws, even performance issues exist we try to build a much simpler and secure solution: HTTP/1.2.
See BUILD.md to compile, tests: /test/README.md, specs: /specs/md/README.md.
CI generated doc: /doc/README.md or http://docs.webcodex.de/wacp/rfp/.
It will provide the following features:
- Much more leightweight
- Much more secure
- Much faster
- Drop bloating features
- Logical separated (TCP ports)
- Easy to implement
- Low cost maintainable
- Application Server friendly
- Proxy Server friendly
- Scalable to infinity
Also the part "HyperText" or even a complete renaming could be thought over. Its representation is by far not more appropriate these days.
We will publish detailed RFP / RFC in the near future on http://der-it-pruefer.de.
A detailed feature comparison see: HTTP Feature Matrix.
The primary projects goal is to provide a lightning-fast, rock solid and secure Python Application Server component especially adapted for Modern-Browser-Applications (SPA).
Also the FalconAS Python Application Server will be a main-component of the x0 JavaScript Framework in the near future.
HTTP/2 adds too much complexity. The HTTP/1.1 simplicity is lost completely, especially OpenSource libraries tend to be confusing and ununderstandable even using libevent.
Its everything packed in one really big box. Logical separation? Security? All going unfiltered over a single TCP port. Ah, just use your IPS correctly! Bam: IPS process killed by 0day inside TCP packet.
Also adding TLS / SSL handling inside the protocol is not appropriate anymore. Let this handle a separated component like nginx (reverse proxy), ingress-nginx on Kubernetes, stunnel or a Hardware-Loadbalancer.
Do not duplicate things you are not familiar with especially when other products exist which do the same for decades much smarter.
HTTP/2 fixes the HTTP/1.1 Pipelined Connections problem. Due to a bug in asynchronously handling the responses (wrong Request / Reply order) the complete feature was removed from ALL browsers worldwide.
Our HTTP/1.2 implementation also fixes the problem by extending the HTTP/1.1 protocol by just some lines of code. A unique identifier (UUID) will be added for each Request so Response-Ordering will be obsolete.
Caution
Our HTTP/1.2 implementation makes HTTP/2 and HTTP/3 obsolete and reduces complexity by far.
HTTP/3 has been implemented using UDP, switching from TCP/IP. A possible solution for precalculated (non-realtime) CDN data, not realtime-applications.
Details at Der IT Prüfer / Exemplary (HTTP) Network Processing.
Note
All rumours telling HTTP/2 streams can get blocked by TCP/IP retransmissions is a hoax! If something gets blocked its caused by something in the OSI upper Layers, not Layer-3.
We provide Proof Of Conecept Code and our working "FalconAS" HTTP/1.2 Server including these components:
- Static-Content-Server
- Applicaton-Server using Python Scripting Language
The Proxy-Server Component has been engineered and will be published later on.
Currently Coroutines is the word of interest in the Coding-Community. Libevent uses Coroutines. Multiple Server Products use Libevent for client connection handling.
But beware: Coroutines could be contraproductive considering scaling aspects. If you are not familiar with Kernel Socket Programming and implement the socket in a blocking way: Each client filedescriptor will be monitored by the kernel separetely: Welcome to the 90s.
Concrete: the main loop in user space iterates over ALL current connection filedescriptors. If we have 10000 active or sleeping Keep-Alive connections: 10000 syscalls (context switches between user and kernel space) will be done to check if socket contains received data permanently.
Unlike (e.g. nginX) using epoll (also HTTP/1.2 uses epoll) a single syscall will tell user space about multiple filedescriptors having waiting data. With optimized 64bit server CPU and a good implementation: go lightspeed.
Warning
Coroutines in C++ should be used for Generators exclusively.