All files utils.js

88.89% Statements 48/54
73.53% Branches 25/34
93.33% Functions 14/15
90% Lines 45/50
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 1942x 2x 2x 2x 2x 2x   2x 2x     2x             8x   8x   8x 8x 8x                     7x                   7x   6x                   3x 2x                 8x 8x   8x               8x   8x   8x 1x     7x                   7x                                       7x   7x         7x 7x                   1x       7x               7x 7x         7x                       6x   6x                     2x                       2x 2x 2x 2x 2x
var path = require("path");
var Provider = require("react-redux").Provider;
var WrapperProvider = require("./wrapper").WrapperProvider;
var renderToString = require("react-dom/server").renderToString;
var React = require("react");
var ReactRouter = require("react-router");
 
var match = ReactRouter.match;
var RouterContext = ReactRouter.RouterContext;
 
function sendError(config, options) {
    config.res
        .status(config.code)
        .send(options.errorTemplate(config));
}
 
function waitForTemplate(options) {
 
    return (new Promise(function(resolve) {
 
        var interval = setInterval(function() {
 
            Eif (options.fs.existsSync(options.templatePath)) {
                clearInterval(interval);
                resolve(options.fs.readFileSync(options.templatePath).toString());
            }
 
        }, 200);
 
    }));
 
}
 
function renderFullPage(config, options) {
 
    var parsedTemplate = options.template({
        component: config.component,
        html: config.html,
        initialProps: config.initialProps,
        store: config.store,
        req: config.req,
        res: config.res,
        template: config.template
    });
 
    if (typeof parsedTemplate !== 'string') throw new Error('Return type of options.template() has to be a string');
 
    return parsedTemplate.replace(
        '<head>', // this should be the first script on a page so that others can pick it up
        '<head>' +
        '<script type="text/javascript">window["' + options.initialStateKey + '"] = ' + JSON.stringify(config.store.getState()) + ';</script>' +
        '<script type="text/javascript">window["' + options.initialPropsKey + '"] = ' + JSON.stringify(config.initialProps) + ';</script>'
    );
 
}
 
function errorTemplate(config) {
    if (config.html) return config.html;
    return (
        "<h1>" + config.code + " Server Error</h1>" +
        "<h2>" + (config.error.message || config.error) + "</h2>" +
        "<pre>" + (config.error.stack || config.error) + "</pre>"
    );
}
 
function middleware(options, routes, history, templatePromise, req, res, next) {
 
    var location = history.createLocation(req.url);
    var store = options.createStore({req: req, res: res});
 
    Iif (
        options.fs.existsSync(path.join(options.outputPath, location.pathname)) &&
        !~options.ignoreUrls.indexOf(location.pathname)
    ) {
        if (options.debug) console.log('Static', location.pathname);
        return next();
    }
 
    match({routes: routes, location: location}, function(error, redirectLocation, renderProps) {
 
        Eif (options.debug) console.log('Rendering', location.pathname + location.search);
 
        if (redirectLocation) {
            return res.redirect(301, redirectLocation.pathname + redirectLocation.search);
        }
 
        Iif (error) {
            //TODO Find how to test
            return sendError({
                code: 502,
                error: error,
                req: req,
                res: res
            }, options);
        }
 
        Iif (renderProps === null) {
            //TODO Find how to test
            return templatePromise.then(function(template) {
                sendError({
                    code: 404,
                    html: renderFullPage({
                        template: template,
                        req: req,
                        res: res,
                        component: null,
                        initialProps: null,
                        html: '',
                        store: store
                    }, options),
                    req: req,
                    res: res
                }, options);
            });
        }
 
        new Promise(function(resolve) {
 
            var Cmp = renderProps.components[renderProps.components.length - 1]; // it used to be .WrappedComponent but it's useless, users can find it themselves if needed
 
            // console.log('Found Component', Cmp.getInitialProps);
 
            function getInitialProps() {
                return new Promise(function(resolve) {
                    resolve((Cmp && Cmp.getInitialProps) ? Cmp.getInitialProps({
                        location: renderProps.location,
                        params: renderProps.params,
                        query: renderProps.query,
                        req: req,
                        res: res,
                        store: store
                    }) : null);
                }).catch(function(e) {
                    // console.log('Recovering after getInitialProps error', e);
                    return {initialError: e.message || e.toString()};
                });
            }
 
            resolve(Promise.all([
                Cmp,
                getInitialProps(),
                templatePromise
            ]));
 
        }).then(function(result) {
 
            var Cmp = result[0];
            var initialProps = result[1];
 
            // console.log('Setting context initial props', initialProps);
            // console.log('Store state before rendering', store.getState());
 
            var html = renderToString(
                React.createElement(
                    WrapperProvider,
                    {initialProps: initialProps},
                    React.createElement(
                        Provider,
                        {store: store},
                        React.createElement(RouterContext, renderProps)
                    )
                )
            );
 
            res.status(Cmp && !Cmp.notFound ? 200 : 404);
 
            return renderFullPage({
                template: result[2],
                component: Cmp,
                html: html,
                initialProps: initialProps,
                req: req,
                res: res,
                store: store
            }, options);
 
        }).then(res.send.bind(res)).catch(function(e) {
            return sendError({
                code: 500,
                error: e,
                req: req,
                res: res
            }, options);
        });
 
    });
 
}
 
exports.sendError = sendError;
exports.middleware = middleware;
exports.errorTemplate = errorTemplate;
exports.renderFullPage = renderFullPage;
exports.waitForTemplate = waitForTemplate;