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Security header setup for the Website service (#8)

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This PR contains the work done to add a `SecurityHeadersMiddleware` middleware that stamps hardened security-related HTTP headers onto every response.

To provide further details about the work:

* Implemented the `SecurityHeadersMiddleware` middleware, which precomputes headers once from a `Configuration` object and applies them to every response:
  * _Content-Security-Policy_,
  * _X-Content-Type-Options_,
  * _X-Frame-Options_,
  * _Referrer-Policy_,
  * _Permissions-Policy_,
  * _Strict-Transport-Security_ (optional).
* Integrated this middleware into the router (near the top of the chain), reading each value from configuration with hardened defaults.
* The _Strict-Transport-Security_ has no default value — omitted unless explicitly set, so it stays off in plain-HTTP during development and on only behind TLS.
* Added security-header constants keys and values.

Reviewed-on: rock-n-code/loud-amsterdam#8
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>
This commit is contained in:
javier
2026-06-28 11:35:54 +00:00
committed by javier
parent 7c18cd9ec0
commit 6b6389cb0f
9 changed files with 497 additions and 31 deletions
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Services/Website/Sources/Library/Internal/Extensions/HTTPFieldName+Constants.swift
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import HTTPTypes
extension HTTPField.Name {
/// The `Permissions-Policy` field name (not provided as a standard `HTTPField.Name`).
static let permissionsPolicy = Self("Permissions-Policy")!
/// The `Referrer-Policy` field name (not provided as a standard `HTTPField.Name`).
static let referrerPolicy = Self("Referrer-Policy")!
/// The `X-Frame-Options` field name (not provided as a standard `HTTPField.Name`).
static let frameOptions = Self("X-Frame-Options")!
}