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Refactor compose_handlers and ignore

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This commit is contained in:
mrkishi
2019-05-04 18:47:32 -03:00
parent c99b787632
commit 5cba40b7e0
4 changed files with 19 additions and 34 deletions
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1
runtime/src/server/constants.js
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@@ -1 +0,0 @@
export const IGNORE = '__SAPPER__IGNORE__';

3
runtime/src/server/middleware/get_page_handler.ts
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@@ -5,7 +5,6 @@ import cookie from 'cookie';
import devalue from 'devalue'; import devalue from 'devalue';
import fetch from 'node-fetch'; import fetch from 'node-fetch';
import URL from 'url'; import URL from 'url';
import { IGNORE } from '../constants';
import { Manifest, Page, Props, Req, Res } from './types'; import { Manifest, Page, Props, Req, Res } from './types';
import { build_dir, dev, src_dir } from '@sapper/internal/manifest-server'; import { build_dir, dev, src_dir } from '@sapper/internal/manifest-server';
import { stores } from '@sapper/internal/shared'; import { stores } from '@sapper/internal/shared';
@@ -328,8 +327,6 @@ export function get_page_handler(
} }
return function find_route(req: Req, res: Res, next: () => void) { return function find_route(req: Req, res: Res, next: () => void) {
if (req[IGNORE]) return next();
if (req.path === '/service-worker-index.html') { if (req.path === '/service-worker-index.html') {
const homePage = pages.find(page => page.pattern.test('/')); const homePage = pages.find(page => page.pattern.test('/'));
handle_page(homePage, req, res); handle_page(homePage, req, res);

3
runtime/src/server/middleware/get_server_route_handler.ts
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@@ -1,4 +1,3 @@
import { IGNORE } from '../constants';
import { Req, Res, ServerRoute } from './types'; import { Req, Res, ServerRoute } from './types';
export function get_server_route_handler(routes: ServerRoute[]) { export function get_server_route_handler(routes: ServerRoute[]) {
@@ -64,8 +63,6 @@ export function get_server_route_handler(routes: ServerRoute[]) {
} }
return function find_route(req: Req, res: Res, next: () => void) { return function find_route(req: Req, res: Res, next: () => void) {
if (req[IGNORE]) return next();
for (const route of routes) { for (const route of routes) {
if (route.pattern.test(req.path)) { if (route.pattern.test(req.path)) {
handle_route(route, req, res, next); handle_route(route, req, res, next);

44
runtime/src/server/middleware/index.ts
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@@ -5,7 +5,6 @@ import { Handler, Req, Res } from './types';
import { get_server_route_handler } from './get_server_route_handler'; import { get_server_route_handler } from './get_server_route_handler';
import { get_page_handler } from './get_page_handler'; import { get_page_handler } from './get_page_handler';
import { lookup } from './mime'; import { lookup } from './mime';
import { IGNORE } from '../constants';
export default function middleware(opts: { export default function middleware(opts: {
session?: (req: Req, res: Res) => any, session?: (req: Req, res: Res) => any,
@@ -15,15 +14,8 @@ export default function middleware(opts: {
let emitted_basepath = false; let emitted_basepath = false;
return compose_handlers([ return compose_handlers(ignore, [
ignore && ((req: Req, res: Res, next: () => void) => {
req[IGNORE] = should_ignore(req.path, ignore);
next();
}),
(req: Req, res: Res, next: () => void) => { (req: Req, res: Res, next: () => void) => {
if (req[IGNORE]) return next();
if (req.baseUrl === undefined) { if (req.baseUrl === undefined) {
let { originalUrl } = req; let { originalUrl } = req;
if (req.url === '/' && originalUrl[originalUrl.length - 1] !== '/') { if (req.url === '/' && originalUrl[originalUrl.length - 1] !== '/') {
@@ -73,24 +65,26 @@ export default function middleware(opts: {
].filter(Boolean)); ].filter(Boolean));
} }
export function compose_handlers(handlers: Handler[]) { export function compose_handlers(ignore: any, handlers: Handler[]): Handler {
return (req: Req, res: Res, next: () => void) => { const total = handlers.length;
let i = 0;
function go() {
const handler = handlers[i];
if (handler) { function nth_handler(n: number, req: Req, res: Res, next: () => void) {
handler(req, res, () => { if (n >= total) {
i += 1; return next();
go();
});
} else {
next();
}
} }
go(); handlers[n](req, res, () => nth_handler(n+1, req, res, next));
}; }
return !ignore
? (req, res, next) => nth_handler(0, req, res, next)
: (req, res, next) => {
if (should_ignore(req.path, ignore)) {
next();
} else {
nth_handler(0, req, res, next);
}
};
} }
export function should_ignore(uri: string, val: any) { export function should_ignore(uri: string, val: any) {
@@ -116,8 +110,6 @@ export function serve({ prefix, pathname, cache_control }: {
: (file: string) => (cache.has(file) ? cache : cache.set(file, fs.readFileSync(path.resolve(build_dir, file)))).get(file) : (file: string) => (cache.has(file) ? cache : cache.set(file, fs.readFileSync(path.resolve(build_dir, file)))).get(file)
return (req: Req, res: Res, next: () => void) => { return (req: Req, res: Res, next: () => void) => {
if (req[IGNORE]) return next();
if (filter(req)) { if (filter(req)) {
const type = lookup(req.path); const type = lookup(req.path);