hapi-openapi/lib/utils.js

Design-driven apis with OpenAPI (formerly Swagger) 2.0 and hapi.

'use strict';

const utils = {

    verbs: [
        'get',
        'post',
        'put',
        'delete',
        'head',
        'options',
        'trace',
        'connect',
        'patch'
    ],

    canCarry: function (method) {
        switch (method) {
            case 'post':
            case 'put':
            case 'patch':
            case 'delete':
                return true;
            default:
                return false;
        }
    },

    isHttpMethod: function (method) {
        return (typeof method === 'string') && !!~utils.verbs.indexOf(method.toLowerCase());
    },

    endsWith: function (haystack, needle) {
        if (!haystack || !needle) {
            return false;
        }

        if (needle.length === 1) {
            return haystack[haystack.length - 1] === needle;
        }

        return haystack.slice(haystack.length - needle.length) === needle;
    },

    prefix: function (str, pre) {
        str = str || '';
        if (str.indexOf(pre) === 0) {
            return str;
        }

        str = pre + str;
        return str;
    },

    unprefix: function (str, pre) {
        str = str || '';
        if (str.indexOf(pre) === 0) {
            str = str.substr(pre.length);
            return str;
        }

        return str;
    },

    suffix: function (str, suff) {
        str = str || '';
        if (this.endsWith(str, suff)) {
            return str;
        }

        str = str + suff;
        return str;
    },

    unsuffix: function (str, suff) {
        str = str || '';
        if (this.endsWith(str, suff)) {
            str = str.substr(0, str.length - suff.length);
            return str;
        }

        return str;
    }
};

module.exports = utils;