@kitmi/jacaranda/cjs/middlewares/favicon.js

JavaScript application framework

/**
 * Middleware to serve favicon request.
 * @module Middleware_Favicon
 */ "use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "default", {
    enumerable: true,
    get: function() {
        return _default;
    }
});
const _utils = require("@kitmi/utils");
const _sys = require("@kitmi/sys");
const _nodepath = /*#__PURE__*/ _interop_require_default(require("node:path"));
const _types = require("@kitmi/types");
function _interop_require_default(obj) {
    return obj && obj.__esModule ? obj : {
        default: obj
    };
}
const favicon = (options, app)=>{
    if (typeof options === 'string') {
        options = {
            path: options
        };
    }
    let faviconPath = options && options.path && app.toAbsolutePath(options.path) || _nodepath.default.join(app.publicPath, 'favicon.ico');
    if (!_sys.fs.existsSync(faviconPath)) {
        throw new _types.InvalidConfiguration(`Favicon path "${faviconPath}" not exists.`, app, 'middlewares.favicon');
    }
    let icon;
    const maxAge = options.maxAge == null ? 86400000 : Math.min(Math.max(0, options.maxAge), 31556926000);
    const cacheControl = `public, max-age=${maxAge / 1000 | 0}`;
    return async (ctx, next)=>{
        if ('/favicon.ico' !== ctx.path || 'GET' !== ctx.method && 'HEAD' !== ctx.method) {
            return next();
        }
        if (!icon) {
            let stats = await _sys.fs.stat(faviconPath);
            //maximum 1M
            if (stats.size > 1048576) {
                app.log('warn', 'favicon.ico too large.', stats);
                ctx.throw(_types.HttpCode.NOT_FOUND);
            }
            icon = await _sys.fs.readFile(faviconPath);
        }
        ctx.set('Cache-Control', cacheControl);
        ctx.type = 'image/x-icon';
        ctx.body = icon;
    };
};
const _default = favicon;

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