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router.ts
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router.ts
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import { getCurrentInstance, hasInjectionContext, inject, onUnmounted } from 'vue'
import type { Ref } from 'vue'
import type { NavigationFailure, NavigationGuard, RouteLocationNormalized, RouteLocationPathRaw, RouteLocationRaw, Router, useRoute as _useRoute, useRouter as _useRouter } from '#vue-router'
import { sanitizeStatusCode } from 'h3'
import { hasProtocol, joinURL, parseURL } from 'ufo'
import { useNuxtApp, useRuntimeConfig } from '../nuxt'
import type { NuxtError } from './error'
import { createError } from './error'
import { useState } from './state'
import type { PageMeta } from '#app'
export const useRouter: typeof _useRouter = () => {
return useNuxtApp()?.$router as Router
}
export const useRoute: typeof _useRoute = () => {
if (process.dev && isProcessingMiddleware()) {
console.warn('[nuxt] Calling `useRoute` within middleware may lead to misleading results. Instead, use the (to, from) arguments passed to the middleware to access the new and old routes.')
}
if (hasInjectionContext()) {
return inject('_route', useNuxtApp()._route)
}
return useNuxtApp()._route
}
export const onBeforeRouteLeave = (guard: NavigationGuard) => {
const unsubscribe = useRouter().beforeEach((to, from, next) => {
if (to === from) { return }
return guard(to, from, next)
})
onUnmounted(unsubscribe)
}
export const onBeforeRouteUpdate = (guard: NavigationGuard) => {
const unsubscribe = useRouter().beforeEach(guard)
onUnmounted(unsubscribe)
}
export interface RouteMiddleware {
(to: RouteLocationNormalized, from: RouteLocationNormalized): ReturnType<NavigationGuard>
}
export const defineNuxtRouteMiddleware = (middleware: RouteMiddleware) => middleware
export interface AddRouteMiddlewareOptions {
global?: boolean
}
interface AddRouteMiddleware {
(name: string, middleware: RouteMiddleware, options?: AddRouteMiddlewareOptions): void
(middleware: RouteMiddleware): void
}
export const addRouteMiddleware: AddRouteMiddleware = (name: string | RouteMiddleware, middleware?: RouteMiddleware, options: AddRouteMiddlewareOptions = {}) => {
const nuxtApp = useNuxtApp()
const global = options.global || typeof name !== 'string'
const mw = typeof name !== 'string' ? name : middleware
if (!mw) {
console.warn('[nuxt] No route middleware passed to `addRouteMiddleware`.', name)
return
}
if (global) {
nuxtApp._middleware.global.push(mw)
} else {
nuxtApp._middleware.named[name] = mw
}
}
const isProcessingMiddleware = () => {
try {
if (useNuxtApp()._processingMiddleware) {
return true
}
} catch {
// Within an async middleware
return true
}
return false
}
export interface NavigateToOptions {
replace?: boolean
redirectCode?: number,
external?: boolean
}
export const navigateTo = (to: RouteLocationRaw | undefined | null, options?: NavigateToOptions): Promise<void | NavigationFailure | false> | false | void | RouteLocationRaw => {
if (!to) {
to = '/'
}
const toPath = typeof to === 'string' ? to : ((to as RouteLocationPathRaw).path || '/')
const isExternal = options?.external || hasProtocol(toPath, { acceptRelative: true })
if (isExternal && !options?.external) {
throw new Error('Navigating to external URL is not allowed by default. Use `navigateTo (url, { external: true })`.')
}
if (isExternal && parseURL(toPath).protocol === 'script:') {
throw new Error('Cannot navigate to an URL with script protocol.')
}
const inMiddleware = isProcessingMiddleware()
// Early redirect on client-side
if (process.client && !isExternal && inMiddleware) {
return to
}
const router = useRouter()
if (process.server) {
const nuxtApp = useNuxtApp()
if (nuxtApp.ssrContext) {
const fullPath = typeof to === 'string' || isExternal ? toPath : router.resolve(to).fullPath || '/'
const location = isExternal ? toPath : joinURL(useRuntimeConfig().app.baseURL, fullPath)
async function redirect () {
// TODO: consider deprecating in favour of `app:rendered` and removing
await nuxtApp.callHook('app:redirected')
const encodedLoc = location.replace(/"/g, '%22')
nuxtApp.ssrContext!._renderResponse = {
statusCode: sanitizeStatusCode(options?.redirectCode || 302, 302),
body: `<!DOCTYPE html><html><head><meta http-equiv="refresh" content="0; url=${encodedLoc}"></head></html>`,
headers: { location }
}
return inMiddleware ? /* abort route navigation */ false : undefined
}
// We wait to perform the redirect last in case any other middleware will intercept the redirect
// and redirect somewhere else instead.
if (!isExternal && inMiddleware) {
router.afterEach(final => (final.fullPath === fullPath) ? redirect() : undefined)
return to
}
return redirect()
}
}
// Client-side redirection using vue-router
if (isExternal) {
if (options?.replace) {
location.replace(toPath)
} else {
location.href = toPath
}
return Promise.resolve()
}
return options?.replace ? router.replace(to) : router.push(to)
}
/** This will abort navigation within a Nuxt route middleware handler. */
export const abortNavigation = (err?: string | Partial<NuxtError>) => {
if (process.dev && !isProcessingMiddleware()) {
throw new Error('abortNavigation() is only usable inside a route middleware handler.')
}
if (err) {
throw createError(err)
}
return false
}
export const setPageLayout = (layout: string) => {
if (process.server) {
if (process.dev && getCurrentInstance() && useState('_layout').value !== layout) {
console.warn('[warn] [nuxt] `setPageLayout` should not be called to change the layout on the server within a component as this will cause hydration errors.')
}
useState('_layout').value = layout
}
const nuxtApp = useNuxtApp()
if (process.dev && nuxtApp.isHydrating && nuxtApp.payload.serverRendered && useState('_layout').value !== layout) {
console.warn('[warn] [nuxt] `setPageLayout` should not be called to change the layout during hydration as this will cause hydration errors.')
}
const inMiddleware = isProcessingMiddleware()
if (inMiddleware || process.server || nuxtApp.isHydrating) {
const unsubscribe = useRouter().beforeResolve((to) => {
to.meta.layout = layout as Exclude<PageMeta['layout'], Ref | false>
unsubscribe()
})
}
if (!inMiddleware) {
useRoute().meta.layout = layout as Exclude<PageMeta['layout'], Ref | false>
}
}