javier
cdded06ba3
This PR contains the work done to rename the _Web_ package as _Infrastructure_, to provide a clear naming and purpose to this particular package within the project. To provide further details about the work: * Infrastructure * Asset fingerprinting: an FNV-1a token derived from the static files directory, appended as ?v= to asset URLs so deploys bust caches; pre-rendered pages also revalidate via weak ETags. * New middlewares: fixed-window RateLimitMiddleware (per-client budgets keyed by trusted X-Forwarded-For or remote address) and VaryMiddleware (Accept-Encoding on every response); SecurityHeadersMiddleware now also stamps error responses. * Auto-generated HEAD endpoints, cache max-age configuration, and Docker build/Compose refinements. * Protocols and scaffolding: Asset/AssetExtension, the Page protocol (viewport, stylesheets, scripts, versioned URLs), and LocalizedRequestContext. * Rate limiter's counter store swapped from an actor to a Mutex (no executor hop per request) with amortized batch eviction instead of O(n²) scans under client floods. * FingerprintAssets reports unreadable files to a logger instead of silently producing a token that never busts their cache. Reviewed-on: rock-n-code/loud-amsterdam#25 Co-authored-by: Javier Cicchelli <javier@rock-n-code.com> Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>
77 lines
2.7 KiB
Swift
77 lines
2.7 KiB
Swift
import Elementary
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import Foundation
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import HTTPTypes
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import Hummingbird
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import Localization
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/// A per-language collection of pre-rendered HTML responses.
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///
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/// At initialization it renders the document once for each language the bundle's ``LanguageList``
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/// reports and caches the bytes, mirroring ``CachedHTMLResponse``'s render-once model but keyed by
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/// language. Each cached response carries a `Content-Language` header and `Vary: Accept-Language`, so
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/// shared caches key on the negotiated language instead of serving one language to everyone.
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public struct LocalizedHTMLCollectionResponse: Sendable {
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// MARK: Properties
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/// The supported languages and default language, derived from the bundle's String Catalog.
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private let list: LanguageList
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/// The pre-rendered responses, keyed by language identifier.
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private let responses: [String: CachedHTMLResponse]
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// MARK: Initializers
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/// Renders the document once per supported language.
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/// - Parameters:
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/// - bundle: the bundle whose String Catalog names the languages the document is rendered for.
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/// - status: the status applied to every response. Defaults to `.ok`.
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/// - document: builds the document to render for a given locale.
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public init<Document: HTMLDocument>(
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bundle: Bundle,
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status: HTTPResponse.Status = .ok,
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document: (Locale) -> Document
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) {
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self.list = .init(bundle: bundle)
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self.responses = list.all
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.reduce(into: [:]) { responses, language in
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responses[language] = CachedHTMLResponse(
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status: status,
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additionalHeaders: [
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.contentLanguage: language,
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.vary: "Accept-Language",
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],
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document: document(.init(
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identifier: language
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))
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)
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}
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}
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// MARK: Methods
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/// Builds the response for the given language, falling back to the default language.
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/// - Parameters:
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/// - language: the negotiated language identifier.
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/// - request: the request the response answers, consulted for conditional revalidation.
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/// - Returns: the cached response for the language, the default language's response when the
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/// language is unavailable, or a `500 Internal Server Error` if neither is cached.
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public func response(
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for language: String,
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request: Request
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) -> Response {
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guard
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let response = responses[language] ?? responses[list.default]
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else {
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return .init(
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status: .internalServerError
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)
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}
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return response.response(
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for: request
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)
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}
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}
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