iweb/lib/inspector/weinre-handler.js

一个用于前端开发的实时预览工具

// Generated by CoffeeScript 1.8.0
var Channel, HttpChannelHandler, channelManager, handleCreate, handleError, handleGet, handleOptions, handlePost, setCORSHeaders, setCacheHeaders, utils, _;
_ = require('weinre/node_modules/underscore');
utils = require('weinre/lib/utils');
Channel = require('weinre/lib/Channel');
channelManager = require('weinre/lib/channelManager');

module.exports = utils.registerClass(HttpChannelHandler = (function() {
    function HttpChannelHandler(pathPrefix) {
        this.pathPrefix = pathPrefix;
        if (this.pathPrefix === '/ws/client') {
            this.isClient = true;
        } else if (this.pathPrefix === '/ws/target') {
            this.isClient = false;
        } else {
            utils.pitch("invalid pathPrefix: " + this.pathPrefix);
        }
        this.isTarget = !this.isClient;
    }

    HttpChannelHandler.prototype.handle = function(context, uri) {
        var request = context.request;
        var response = context.response;
        var channelName, parts;
        setCORSHeaders(context);
        setCacheHeaders(context);
        if (uri[0] !== '/') {
            return handleError(context, 404);
        }
        if (uri === '/') {
            if (request.method === 'OPTIONS') {
                return handleOptions(context);
            }
            if (request.method === 'POST') {
                return handleCreate(this.pathPrefix, this.isClient, context);
            }
            return handleError(context, 405);
        }
        parts = uri.split('/');
        if (parts.length > 2) {
            return handleError(context, 404);
        }
        channelName = parts[1];
        if (request.method === 'OPTIONS') {
            return handleOptions(context);
        }
        if (request.method === 'GET') {
            return handleGet(context, channelName);
        }
        if (request.method === 'POST') {
            return handlePost(context, channelName);
        }
        return handleError(context, 405);
    };

    return HttpChannelHandler;

})());

handleCreate = function(pathPrefix, isClient, context) {
    var request = context.request;
    var response = context.response;
    var channel, id, remoteAddress, _ref, _ref1;
    id = (_ref = request.body) != null ? _ref.id : void 0;
    remoteAddress = ((_ref1 = request.connection) != null ? _ref1.remoteAddress : void 0) || "";
    channel = new Channel(pathPrefix, id, remoteAddress, isClient);
    return context.content(JSON.stringify({
        channel: channel.name,
        id: channel.id
    }), 'application/json');
};

handleGet = function(context, channelName) {
    var request = context.request;
    var response = context.response;
    var channel, remoteAddress, _ref;
    remoteAddress = ((_ref = request.connection) != null ? _ref.remoteAddress : void 0) || "";
    channel = channelManager.getChannel(channelName, remoteAddress);
    if (!channel) {
        return handleError(context, 404);
    }
    return channel.getMessages((function(_this) {
        return function(messages) {
            if (channel.isClosed) {
                return handleError(context, 404);
            }
            if (!messages) {
                return handleError(context, 404);
            }
            return context.content(JSON.stringify(messages), 'application/json');
        };
    })(this));
};

handlePost = function(context, channelName) {
    var request = context.request;
    var response = context.response;
    var channel, remoteAddress, _ref;
    remoteAddress = ((_ref = request.connection) != null ? _ref.remoteAddress : void 0) || "";
    channel = channelManager.getChannel(channelName, remoteAddress);
    if (!channel) {
        return handleError(context, 404);
    }
    //console.log(JSON.stringify(request.body));
    channel.handleMessages(request.body);
    return context.content('');
};

handleOptions = function(context) {
    var request = context.request;
    var response = context.response;
    return context.content('');
};

handleError = function(context, status) {
    var request = context.request;
    var response = context.response;
    return context.status(status);
};

setCORSHeaders = function(context) {
    var request = context.request;
    var response = context.response;
    // var origin = request.headers['Origin'];
    // console.log(origin);
    // if (!origin) {
    //     return;
    // }
    response.setHeader('Access-Control-Allow-Origin', '*');
    response.setHeader('Access-Control-Max-Age', '600');
    return response.setHeader('Access-Control-Allow-Methods', 'GET, POST');
};

setCacheHeaders = function(context) {
    var request = context.request;
    var response = context.response;
    response.setHeader('Pragma', 'no-cache');
    response.setHeader('Expires', '0');
    response.setHeader('Cache-Control', 'no-cache');
    return response.setHeader('Cache-Control', 'no-store');
};