Embedthis Appweb™ Features

The Appweb product includes the following components:

• Appweb HTTP Server main program
• Appweb HTTP Client program
• Appweb HTTP Server library
• Appweb HTTP Client library
• Appweb loadable modules for server-side JavaScript, Embedded Gateway Interface, Common Gateway Interface, and PHP
• Ejscript web framework for server-side JavaScript programming
• Secure Sockets Layer (SSL/TLS)
• Documentation
• Samples
• Source code

Feature Overview

HTTP Server Engine

• Full HTTP/1.1 support
• Mulit-threaded, event based server
• Fast co-routine request pipeline
• Per-request virtual arena-based memory allocator (prevents memory leaks)
• Sendfile and vectored I/O
• Supports ranged, chunked and pipelined requests
• Supports transfer chunk encoding to preserve keep-alive
• Virtual Hosting. IP-based and Name-based
• Error and access Logging (Common Log Format)
• Apache style configuration
• Angel monitoring process
• Sand-box resource limits

Performance

• Request throughput (> 4,500 requests per second)
• Multi-threaded scaling on multi-cpu systems
• Small memory footprint even under heavy load (from 800K)

Modularity

• Dynamic loading of modules
• Modules for CGI, PHP, Authorization, Chunked requests, Ranged reqeusts, directory listings, EGI, static file requests, file upload and SSL
• Extensible URL handlers
• Extensible / replaceable authorization, SSL and script

Security

• Secure Sockets Layer (SSL)
• Basic and Digest Authentication
• Directory and URL location based authorization
• Sandbox limits
• Access and access violation logging
• Safe portable runtime to protect against memory leaks and buffer overflows

Dynamic Content

• Ejscript Server-Side JavaScript
• Embedded Gateway Interface (in-memory CGI)
• CGI/1.1
• PHP

Ejscript Web Framework

• Server-side JavaScripting
• Model / View / Controller paradigm or stand-alone web pages
• SQLite database and ORM layer and database migrations
• Web page templating engine
• Ajax View Controls with jQuery support
• Embedded scripting in HTML pages
• Session and flash inter-request state management

Developer Support

• HTTP server and client libraries
• Shared and static libraries supplied
• Extensive C API
• Operate single-threaded or multithreaded (Compile or run-time selectable)
• Easy, intuitive programming model
• Coding minimized as most features can be specified via the configuration file
• Extensive debug trace logging

Documentation

• Full C API Documentation
• Cookbook of samples (cut and paste to get going)
• Tutorials

Platform Support

• Linux (2.4, 2.6: Ubuntu, Fedora)
• Windows (XP, Vista, 7)
• MAC OSX (Leopard)
• VxWorks (5.4, 6.3)
• Free BSD
• Windows CE

Embedding Support

• Supports ARM, MIPS, X86/X86_64, PPC, SH, Sparc processors
• Full cross-compilation support. Use Windows, Linux or Mac as build system
• Fine-grained control for conditional build and compilation
• Build statically or shared
• Execute from ROM. Supports XIP

Other Features

• Packaged installations for Linux, Windows and MAC OS X
• Run as a service / daemon
• HTTP server and client access program

Standards

• HTTP/1.1
• CGI/1.1
• Apache configuration file and logging compatibility