vike
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The Framework *You* Control - Next.js & Nuxt alternative for unprecedented flexibility and dependability.
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JavaScript
import '../../assertEnvServer.js';
export { resolveRedirects };
export { getStaticRedirectsForPrerender };
// For ./resolveRedirects.spec.ts
export { resolveRouteStringRedirect };
import { assertIsNotBrowser } from '../../../utils/assertIsNotBrowser.js';
import { assert, assertUsage, assertWarning } from '../../../utils/assert.js';
import { isUrlRedirectTarget, assertUsageUrlRedirectTarget } from '../../../utils/parseUrl.js';
import { resolveUrlPathname } from '../../../shared-server-client/route/resolveUrlPathname.js';
import { assertRouteString, isStaticRouteString, resolveRouteString, } from '../../../shared-server-client/route/resolveRouteString.js';
import pc from '@brillout/picocolors';
assertIsNotBrowser(); // Don't bloat the client
const redirectsErrPrefix = '[+redirects]';
function resolveRedirects(redirectsAll, urlPathname) {
const redirects = merge(redirectsAll);
for (const [urlSource, urlTarget] of Object.entries(redirects)) {
const urlResolved = resolveRouteStringRedirect(urlSource, urlTarget, urlPathname);
if (urlResolved)
return urlResolved;
}
return null;
}
function getStaticRedirectsForPrerender(redirectsAll, showWarningUponDynamicRedirects) {
const redirects = merge(redirectsAll);
const redirectsStatic = {};
for (const [urlSource, urlTarget] of Object.entries(redirects)) {
assertRedirect(urlSource, urlTarget);
if (isStaticRouteString(urlSource)) {
redirectsStatic[urlSource] = urlTarget;
}
else if (showWarningUponDynamicRedirects) {
assertWarning(false, `Dynamic redirect ${pc.cyan(urlSource)} -> ${pc.cyan(urlTarget)} cannot be pre-rendered. You can remove this warning by setting +prerender.partial to true (https://vike.dev/prerender#partial).`, { onlyOnce: true });
}
}
return redirectsStatic;
}
function resolveRouteStringRedirect(urlSource, urlTarget, urlPathname) {
assertRedirect(urlSource, urlTarget);
const match = resolveRouteString(urlSource, urlPathname);
if (!match)
return null;
const urlResolved = resolveUrlPathname(urlTarget, match.routeParams);
if (urlResolved === urlPathname)
return null;
assert(isUrlRedirectTarget(urlResolved));
return urlResolved;
}
function assertRedirect(urlSource, urlTarget) {
assertRouteString(urlSource, `${redirectsErrPrefix} Invalid`);
// Is allowing any protocol a safety issue? https://github.com/vikejs/vike/pull/1292#issuecomment-1828043917
assertUsageUrlRedirectTarget(urlTarget, `${redirectsErrPrefix} The URL redirection target`, true);
assertParams(urlSource, urlTarget);
}
function assertParams(urlSource, urlTarget) {
const routeSegments = urlTarget.split('/');
routeSegments.forEach((routeSegment) => {
if (routeSegment.startsWith('@') || routeSegment.startsWith('*')) {
const segments = urlSource.split('/');
assertUsage(segments.includes(routeSegment), `${redirectsErrPrefix} The redirection source URL ${pc.string(urlSource)} is missing the URL parameter ${pc.string(routeSegment)} used by the redirection target URL ${pc.string(urlTarget)}`);
}
});
}
function merge(objs) {
const obj = {};
objs.forEach((e) => {
Object.assign(obj, e);
});
return obj;
}