40 lines
2 KiB
TypeScript
40 lines
2 KiB
TypeScript
import { FreshContext } from '$fresh/server.ts'
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import { useCsp } from ':src/csp/middleware.ts'
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import { SessionStore } from ':src/session/mod.ts'
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import { useSession } from ':src/session/middleware.ts'
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export async function handler(request: Request, ctx: FreshContext) {
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// Update fresh context state with session
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ctx.state = { ...ctx.state, session: SessionStore.getFromRequest(request) }
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// Get response
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const response = await ctx.next()
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//Add security headers
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// See https://developer.mozilla.org/en-US/docs/Web/Security/Practical_implementation_guides/TLS#http_strict_transport_security
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response.headers.set('Strict-Transport-Security', 'max-age=63072000; includeSubDomains; preload')
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response.headers.set('Content-Security-Policy', "frame-ancestors 'none'; upgrade-insecure-requests")
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//See https://developer.mozilla.org/en-US/docs/Web/Security/Practical_implementation_guides/Referrer_policy
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response.headers.set('Referrer-Policy', 'no-referrer, strict-origin-when-cross-origin')
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//See https://developer.mozilla.org/en-US/docs/Web/Security/Practical_implementation_guides/MIME_types
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response.headers.set('X-Content-Type-Options', 'nosniff')
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//See https://developer.mozilla.org/en-US/docs/Web/Security/Practical_implementation_guides/Clickjacking
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response.headers.set('X-Frame-Options', 'DENY')
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//See https://developer.mozilla.org/en-US/docs/Web/Security/Practical_implementation_guides/CORP
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response.headers.set('Cross-Origin-Resource-Policy', 'same-origin')
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//See https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity
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//? SRI plugin for non local resources only ?
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//See https://developer.mozilla.org/en-US/docs/Web/Security/Practical_implementation_guides/CSP
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//? fresh useCSP https://fresh.deno.dev/docs/examples/using-csp
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await useCsp(request, response, ctx)
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useSession(request, response, ctx)
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// Allow service worker to serve root scope
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if (ctx.url.pathname.endsWith('island-startserviceworker.js')) {
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response.headers.set('Service-Worker-Allowed', '/')
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}
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return response
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}
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