You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.1 KiB
57 lines
1.1 KiB
3 years ago
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Module dependencies.
|
||
|
|
*/
|
||
|
|
|
||
|
|
const resolve = require('path').resolve;
|
||
|
|
const assert = require('assert');
|
||
|
|
const debug = require('debug')('koa-static');
|
||
|
|
const send = require('koa-send');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expose `serve()`.
|
||
|
|
*/
|
||
|
|
|
||
|
|
module.exports = serve;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Serve static files from `root`.
|
||
|
|
*
|
||
|
|
* @param {String} root
|
||
|
|
* @param {Object} [opts]
|
||
|
|
* @return {Function}
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
function serve(root, opts) {
|
||
|
|
opts = opts || {};
|
||
|
|
|
||
|
|
assert(root, 'root directory is required to serve files');
|
||
|
|
|
||
|
|
// options
|
||
|
|
debug('static "%s" %j', root, opts);
|
||
|
|
opts.root = resolve(root);
|
||
|
|
if (opts.index !== false) opts.index = opts.index || 'index.html';
|
||
|
|
|
||
|
|
if (!opts.defer) {
|
||
|
|
return function *serve(next){
|
||
|
|
if (this.method == 'HEAD' || this.method == 'GET') {
|
||
|
|
if (yield send(this, this.path, opts)) return;
|
||
|
|
}
|
||
|
|
yield* next;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
return function *serve(next){
|
||
|
|
yield* next;
|
||
|
|
|
||
|
|
if (this.method != 'HEAD' && this.method != 'GET') return;
|
||
|
|
// response is already handled
|
||
|
|
if (this.body != null || this.status != 404) return;
|
||
|
|
|
||
|
|
yield send(this, this.path, opts);
|
||
|
|
};
|
||
|
|
}
|