Atlantis:健壮的、可扩展的web应用程序执行环境

James W. Mickens, Mohan Dhawan
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引用次数: 26

摘要

今天的web应用程序在一个复杂的浏览器环境中运行,这个环境有很多bug,没有明确的规定,并且由不同的浏览器以不同的方式实现。因此,要求健壮性的web应用程序必须使用各种条件代码路径和丑陋的hack来处理其运行时的变幻莫测。我们名为Atlantis的新exokernel浏览器通过为页面提供可扩展的执行环境来解决这个问题。Atlantis为收集用户输入、交换网络数据和渲染图像等基本服务定义了一个狭窄的API。通过组合这些原语,网页可以定义自定义的高级执行环境。因此,不希望依赖Atlantis预定义的web堆栈的应用程序可以选择性地重新定义该堆栈的组件,或者定义与当前浏览器运行时完全不同的标记格式和脚本语言。与之前的微内核浏览器(如OP)和编译到javascript框架(如GWT)不同,Atlantis是第一个真正减少网页对黑盒浏览器代码依赖的浏览系统。这使得开发健壮、安全的web应用程序变得更加容易。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Atlantis: robust, extensible execution environments for web applications
Today's web applications run inside a complex browser environment that is buggy, ill-specified, and implemented in different ways by different browsers. Thus, web applications that desire robustness must use a variety of conditional code paths and ugly hacks to deal with the vagaries of their runtime. Our new exokernel browser, called Atlantis, solves this problem by providing pages with an extensible execution environment. Atlantis defines a narrow API for basic services like collecting user input, exchanging network data, and rendering images. By composing these primitives, web pages can define custom, high-level execution environments. Thus, an application which does not want a dependence on Atlantis'predefined web stack can selectively redefine components of that stack, or define markup formats and scripting languages that look nothing like the current browser runtime. Unlike prior microkernel browsers like OP, and unlike compile-to-JavaScript frameworks like GWT, Atlantis is the first browsing system to truly minimize a web page's dependence on black box browser code. This makes it much easier to develop robust, secure web applications.
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