iweb/lib/devtools/filter.js

一个用于前端开发的实时预览工具

var path = require('path');
var pkg = require('../../package.json');
var Filter = module.exports = function() {};

var staticWebDir = path.resolve(__dirname, './web/');
Filter.exp = '^\/-dev';

var devtoolsRegx = new RegExp('^/-dev/tools/');

Filter.prototype.onRequestBegin = function(context, next) {
    context.stopInjection = true;
    if (context.request.url == '/-dev' ||
        context.request.url == '/-dev/' ||
        context.request.url == '/-dev/tools') {
        return context.redirect('/-dev/tools/');
    }
    if (devtoolsRegx.test(context.request.url)) {
        //临时更改 public 目录
        context.request.publicPath = staticWebDir;
        //更改资源 url
        context.request.setUrl(context.request.url.replace('/-dev/tools', '/'));
    }
    //向下传递请求流
    next();
};