thegameofcode/cipherlayer

'use strict';

const config = require('../../config');
const fs = require('fs');

function prepareOptions(req, res, next) {

    const options = {
        url: `http://${config.private_host}:${config.private_port}${req.url}`,
        headers: {
            'Content-Type': req.header('Content-Type'),
            Host: req.headers.host,
            'X-Real-IP': req.connection.remoteAddress,
            'X-Forwarded-For': req.header('X-Forwarded-For') || req.connection.remoteAddress
        },
        method: req.method,
        followRedirect: false
    };

    if(req.tokenInfo){
        options.headers['x-user-id'] = req.tokenInfo.userId;
        if (req.tokenInfo.data) {
            if (req.tokenInfo.data.realms) {
                options.headers['x-user-realms'] = req.tokenInfo.data.realms.join(',');
            }
            if (req.tokenInfo.data.capabilities) {
                options.headers['x-user-capabilities'] = JSON.stringify(req.tokenInfo.data.capabilities);
            }
        }
    }

    if (req.header('Content-Type') && req.header('Content-Type').indexOf('multipart/form-data') > -1) {
        const formData = Object.assign({}, req.body);
        const files = req.files;

        if(files){
            Object.keys(files).forEach( function (filekey){
                formData[filekey] = fs.createReadStream(files[filekey].path);
            });
        }
        options.formData = formData;
    } else {
        options.headers['Content-Type'] = req.header('Content-Type');
        if (req.body) {
            options.body = JSON.stringify(req.body);
        }
    }
    req.options = options;
    return next();
}

module.exports = prepareOptions;