@expo/cli
Version:
85 lines (84 loc) • 2.61 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "ServeStaticMiddleware", {
enumerable: true,
get: function() {
return ServeStaticMiddleware;
}
});
function _path() {
const data = /*#__PURE__*/ _interop_require_default(require("path"));
_path = function() {
return data;
};
return data;
}
function _send() {
const data = /*#__PURE__*/ _interop_require_default(require("send"));
_send = function() {
return data;
};
return data;
}
function _url() {
const data = require("url");
_url = function() {
return data;
};
return data;
}
const _resolvePlatform = require("./resolvePlatform");
const _env = require("../../../utils/env");
function _interop_require_default(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
const debug = require('debug')('expo:start:server:middleware:serveStatic');
class ServeStaticMiddleware {
constructor(projectRoot){
this.projectRoot = projectRoot;
}
getHandler() {
const publicPath = _path().default.join(this.projectRoot, _env.env.EXPO_PUBLIC_FOLDER);
debug(`Serving static files from:`, publicPath);
const opts = {
root: publicPath
};
return (req, res, next)=>{
if (!(req == null ? void 0 : req.url) || req.method !== 'GET' && req.method !== 'HEAD') {
return next();
}
const platform = (0, _resolvePlatform.parsePlatformHeader)(req);
// Currently this is web-only
if (platform && platform !== 'web') {
return next();
}
const pathname = (0, _url().parse)(req.url).pathname;
if (!pathname) {
return next();
}
debug(`Maybe serve static:`, pathname);
const stream = (0, _send().default)(req, pathname, opts);
// add file listener for fallthrough
let forwardError = false;
stream.on('file', function onFile() {
// once file is determined, always forward error
forwardError = true;
});
// forward errors
stream.on('error', function error(err) {
if (forwardError || !(err.statusCode < 500)) {
next(err);
return;
}
next();
});
// pipe
stream.pipe(res);
};
}
}
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