Added security scripts support

dist/index.d.ts

@@ -22,19 +22,24 @@ export type { LocaleMiddlewareResult } from './modules/i18n/index.js';
 export { createLocaleMiddleware, DEFAULT_MIDDLEWARE_MATCHER } from './modules/i18n/index.js';
 export { normalizeFilename, normalizeFilenameHook } from './modules/media/index.js';
 export { getNotificationTexts, NOTIFICATION_FALLBACK, resolveFormMessage, } from './modules/notifications/index.js';
-export type { FormNotificationTexts, NotificationsData, NotificationTexts, } from './modules/notifications/index.js';
+export type { FormNotificationTexts, NotificationTexts } from './modules/notifications/index.js';
 export type { PagesOption, SystemPageRole } from './modules/pages/index.js';
 export { ALL_SYSTEM_PAGE_ROLES, getSystemPagePath } from './modules/pages/index.js';
 export type { GlobalQueryOptions } from './modules/payload/index.js';
 export { getGlobal, getSiteIntegrations, getSiteSettings, SITE_INTEGRATIONS_SLUG, SITE_SETTINGS_SLUG, } from './modules/payload/index.js';
 export { buildSecurityHeaders } from './modules/security/index.js';
+export { buildCsp } from './modules/security/index.js';
+export type { BuildCspArgs } from './modules/security/index.js';
 export type { BuildSecurityHeadersArgs, SecurityHeader } from './modules/security/index.js';
-export { buildArticleJsonLd, buildFaqJsonLd, buildIconsMetadata, buildLlmsTxt, buildLocalBusinessJsonLd, buildOrganizationJsonLd, buildServiceJsonLd, validateFaviconField, } from './modules/seo/index.js';
-export { buildBreadcrumbJsonLd, buildSiteNavigationJsonLd, buildWebSiteJsonLd, } from './modules/seo/index.js';
 export type { PageMetadata, SeoMeta, SeoOption } from './modules/seo/index.js';
 export { buildHreflangAlternates, buildMetadata, composeTitle } from './modules/seo/index.js';
 export type { AutoFillMapping, RobotsRules, SitemapEntry } from './modules/seo/index.js';
 export { buildAutoFillMetaHook, buildRobots, buildSitemapEntries, createMetadataGenerator, createPageMetadata, injectAutoFillMeta, } from './modules/seo/index.js';
+export { buildIconsMetadata, buildOrganizationJsonLd, validateFaviconField, } from './modules/seo/index.js';
+export { buildBreadcrumbJsonLd, buildSiteNavigationJsonLd, buildWebSiteJsonLd, } from './modules/seo/index.js';
+export { buildFaqJsonLd, buildLocalBusinessJsonLd, buildServiceJsonLd, } from './modules/seo/index.js';
+export { buildArticleJsonLd } from './modules/seo/index.js';
+export { buildLlmsTxt } from './modules/seo/index.js';
 export { buildSlugField, toSlug } from './modules/slug/index.js';
 export { buildR2Storage } from './modules/storage/index.js';
 export { ipalKit } from './plugin.js';

dist/index.js

@@ -12,20 +12,21 @@ export { buildFormsPlugin } from './modules/forms/formsPluginConfig.js';
 export { createContentHelpers } from './modules/frontend/index.js';
 export { buildLocalizedPath, getDefaultLocale, getLocaleCodes, getLocaleDefinition, getLocalizedSlugs, isValidLocale, LOCALE_COOKIE_NAME, matchAcceptLanguage, negotiateLocale, switchLocalePath } from './modules/i18n/index.js';
 export { createLocaleMiddleware, DEFAULT_MIDDLEWARE_MATCHER } from './modules/i18n/index.js';
-// Media — filename normalization hook for upload collections (Media).
 export { normalizeFilename, normalizeFilenameHook } from './modules/media/index.js';
 export { getNotificationTexts, NOTIFICATION_FALLBACK, resolveFormMessage } from './modules/notifications/index.js';
 export { ALL_SYSTEM_PAGE_ROLES, getSystemPagePath } from './modules/pages/index.js';
 export { getGlobal, getSiteIntegrations, getSiteSettings, SITE_INTEGRATIONS_SLUG, SITE_SETTINGS_SLUG } from './modules/payload/index.js';
 export { buildSecurityHeaders } from './modules/security/index.js';
-export { buildArticleJsonLd, buildFaqJsonLd, buildIconsMetadata, buildLlmsTxt, buildLocalBusinessJsonLd, buildOrganizationJsonLd, buildServiceJsonLd, validateFaviconField } from './modules/seo/index.js';
+export { buildCsp } from './modules/security/index.js';
-// Structured data (schema.org JSON-LD) — brand/sitelink signals for Google.
-// WebSite (+ optional SearchAction), BreadcrumbList (per page), SiteNavigation.
-export { buildBreadcrumbJsonLd, buildSiteNavigationJsonLd, buildWebSiteJsonLd } from './modules/seo/index.js';
 export { buildHreflangAlternates, buildMetadata, composeTitle } from './modules/seo/index.js';
 export { buildAutoFillMetaHook, buildRobots, buildSitemapEntries, createMetadataGenerator, createPageMetadata, injectAutoFillMeta } from './modules/seo/index.js';
+export { buildIconsMetadata, buildOrganizationJsonLd, validateFaviconField } from './modules/seo/index.js';
+export { buildBreadcrumbJsonLd, buildSiteNavigationJsonLd, buildWebSiteJsonLd } from './modules/seo/index.js';
+// Local SEO structured data — LocalBusiness (map pack), Service (offering), FAQPage.
+export { buildFaqJsonLd, buildLocalBusinessJsonLd, buildServiceJsonLd } from './modules/seo/index.js';
+export { buildArticleJsonLd } from './modules/seo/index.js';
+export { buildLlmsTxt } from './modules/seo/index.js';
 export { buildSlugField, toSlug } from './modules/slug/index.js';
-// Storage — Cloudflare R2 media offload, configured from .env.
 export { buildR2Storage } from './modules/storage/index.js';
 export { ipalKit } from './plugin.js';
 

dist/modules/security/buildCsp.d.ts

@@ -0,0 +1,46 @@
+export type BuildCspArgs = {
+    /** Google Analytics / GTM — adds googletagmanager + google-analytics. */
+    analytics?: boolean;
+    /** Extra sources per directive, merged with the built-ins. */
+    extra?: Partial<Record<CspDirective, string[]>>;
+    /** Google Maps embeds — adds maps.google.com / *.gstatic.com. */
+    googleMaps?: boolean;
+    /** 'enforce' → Content-Security-Policy; 'report-only' → …-Report-Only header. */
+    mode?: 'enforce' | 'report-only';
+    /** Media/R2 public URL (from R2_PUBLIC_URL) — added to img-src. */
+    r2Url?: string;
+    /** Cloudflare Turnstile — adds challenges.cloudflare.com to script/frame/connect. */
+    turnstile?: boolean;
+    /** YouTube embeds — adds youtube to frame-src. */
+    youtube?: boolean;
+};
+type CspDirective = 'base-uri' | 'connect-src' | 'default-src' | 'font-src' | 'form-action' | 'frame-ancestors' | 'frame-src' | 'img-src' | 'object-src' | 'script-src' | 'style-src';
+/**
+ * Builds a Content-Security-Policy string with the hard OWASP/Lighthouse-required
+ * directives baked in, and opt-in sources for common third parties. Solves the
+ * real risk of hand-writing raw CSP per project and forgetting `base-uri 'self'`
+ * or `object-src 'none'`.
+ *
+ * CSP still lives in the project (it lists the project's own domains), but this
+ * helper standardizes the skeleton so every project's CSP has the same hardened
+ * base — you only flip flags for what the project actually loads.
+ *
+ * Returns { key, value } ready for buildSecurityHeaders `additional`:
+ *
+ *   import { buildCsp, buildSecurityHeaders } from '@intecion/ipal-kit'
+ *   const csp = buildCsp({
+ *     mode: 'report-only',            // start here; switch to 'enforce' when clean
+ *     r2Url: process.env.R2_PUBLIC_URL,
+ *     turnstile: true, analytics: true,
+ *   })
+ *   const headers = buildSecurityHeaders({ hsts: prod, additional: [csp] })
+ *
+ * Deploy CSP carefully: start with mode:'report-only', check the console for
+ * violations across the whole site (forms/Turnstile, gallery/R2, embeds), add
+ * missing sources via `extra`, THEN switch to 'enforce'. See docs/security.md.
+ */
+export declare function buildCsp(args?: BuildCspArgs): {
+    key: string;
+    value: string;
+};
+export {};

dist/modules/security/buildCsp.js

@@ -0,0 +1,107 @@
+/**
+ * Builds a Content-Security-Policy string with the hard OWASP/Lighthouse-required
+ * directives baked in, and opt-in sources for common third parties. Solves the
+ * real risk of hand-writing raw CSP per project and forgetting `base-uri 'self'`
+ * or `object-src 'none'`.
+ *
+ * CSP still lives in the project (it lists the project's own domains), but this
+ * helper standardizes the skeleton so every project's CSP has the same hardened
+ * base — you only flip flags for what the project actually loads.
+ *
+ * Returns { key, value } ready for buildSecurityHeaders `additional`:
+ *
+ *   import { buildCsp, buildSecurityHeaders } from '@intecion/ipal-kit'
+ *   const csp = buildCsp({
+ *     mode: 'report-only',            // start here; switch to 'enforce' when clean
+ *     r2Url: process.env.R2_PUBLIC_URL,
+ *     turnstile: true, analytics: true,
+ *   })
+ *   const headers = buildSecurityHeaders({ hsts: prod, additional: [csp] })
+ *
+ * Deploy CSP carefully: start with mode:'report-only', check the console for
+ * violations across the whole site (forms/Turnstile, gallery/R2, embeds), add
+ * missing sources via `extra`, THEN switch to 'enforce'. See docs/security.md.
+ */ export function buildCsp(args = {}) {
+    const { analytics, extra = {}, googleMaps, mode = 'enforce', r2Url, turnstile, youtube } = args;
+    const src = {
+        'default-src': [
+            "'self'"
+        ],
+        // 'unsafe-inline' is hard to avoid with Next/analytics; 'unsafe-eval' is NOT
+        // added by default (weakens CSP) — add via extra only if a library needs it.
+        'connect-src': [
+            "'self'"
+        ],
+        'font-src': [
+            "'self'",
+            'https://fonts.gstatic.com',
+            'data:'
+        ],
+        'form-action': [
+            "'self'"
+        ],
+        'frame-src': [],
+        'img-src': [
+            "'self'",
+            'data:',
+            'blob:'
+        ],
+        'script-src': [
+            "'self'",
+            "'unsafe-inline'"
+        ],
+        'style-src': [
+            "'self'",
+            "'unsafe-inline'",
+            'https://fonts.googleapis.com'
+        ],
+        // HARD defaults (OWASP/Lighthouse) — always on, no reason to omit:
+        'base-uri': [
+            "'self'"
+        ],
+        'frame-ancestors': [
+            "'none'"
+        ],
+        'object-src': [
+            "'none'"
+        ]
+    };
+    if (r2Url) {
+        src['img-src'].push(r2Url);
+    }
+    if (turnstile) {
+        src['script-src'].push('https://challenges.cloudflare.com');
+        src['frame-src'].push('https://challenges.cloudflare.com');
+        src['connect-src'].push('https://challenges.cloudflare.com');
+    }
+    if (analytics) {
+        src['script-src'].push('https://www.googletagmanager.com');
+        src['connect-src'].push('https://www.google-analytics.com', 'https://www.googletagmanager.com');
+        src['img-src'].push('https://www.google-analytics.com', 'https://www.googletagmanager.com');
+    }
+    if (youtube) {
+        src['frame-src'].push('https://www.youtube.com', 'https://www.youtube-nocookie.com');
+    }
+    if (googleMaps) {
+        src['frame-src'].push('https://www.google.com', 'https://maps.google.com');
+        src['script-src'].push('https://maps.googleapis.com');
+        src['img-src'].push('https://maps.gstatic.com', 'https://*.googleapis.com');
+    }
+    // Merge caller extras.
+    for (const [dir, values] of Object.entries(extra)){
+        if (values && values.length) {
+            src[dir] = [
+                ...src[dir] ?? [],
+                ...values
+            ];
+        }
+    }
+    const value = Object.entries(src).filter(([, values])=>values.length > 0).map(([dir, values])=>`${dir} ${values.join(' ')}`).join('; ');
+    const key = mode === 'report-only' ? 'Content-Security-Policy-Report-Only' : 'Content-Security-Policy';
+    return {
+        key,
+        value
+    };
+}
+
+//# sourceMappingURL=buildCsp.js.map

dist/modules/security/buildSecurityHeaders.d.ts

@@ -13,6 +13,14 @@ export type BuildSecurityHeadersArgs = {
      * domains (scripts, images, fonts, analytics). Keep CSP in your project.
      */
     additional?: SecurityHeader[];
+    /**
+     * Cross-Origin-Opener-Policy. Default 'same-origin' — isolates the browsing
+     * context so a malicious page can't hold a window.opener reference (protects
+     * against XS-Leaks / Spectre-class attacks). Project-independent, so it's a
+     * default. Use 'same-origin-allow-popups' if you open OAuth/payment popups
+     * that need window.opener; false to omit.
+     */
+    coop?: 'same-origin' | 'same-origin-allow-popups' | false;
     /**
      * X-Frame-Options value. 'DENY' (default) blocks all framing; 'SAMEORIGIN'
      * allows same-origin framing. Note: CSP frame-ancestors supersedes this in

dist/modules/security/buildSecurityHeaders.js

@@ -26,7 +26,7 @@
  *   },
  * }
  */ export function buildSecurityHeaders(args = {}) {
-    const { additional = [], frameOptions = 'DENY', hsts = true, hstsIncludeSubDomains = true, hstsMaxAge = 63072000, hstsPreload = false, permissionsPolicy = 'camera=(), microphone=(), geolocation=()', referrerPolicy = 'strict-origin-when-cross-origin' } = args;
+    const { additional = [], coop = 'same-origin', frameOptions = 'DENY', hsts = true, hstsIncludeSubDomains = true, hstsMaxAge = 63072000, hstsPreload = false, permissionsPolicy = 'camera=(), microphone=(), geolocation=()', referrerPolicy = 'strict-origin-when-cross-origin' } = args;
     const headers = [];
     if (hsts) {
         const parts = [
@@ -66,6 +66,13 @@
             value: permissionsPolicy
         });
     }
+    // COOP — isolates the browsing context (XS-Leaks / Spectre protection).
+    if (coop) {
+        headers.push({
+            key: 'Cross-Origin-Opener-Policy',
+            value: coop
+        });
+    }
     // Merge additional: same-key entries override the defaults above.
     for (const extra of additional){
         const i = headers.findIndex((h)=>h.key.toLowerCase() === extra.key.toLowerCase());

dist/modules/security/index.d.ts

@@ -1,2 +1,4 @@
+export { buildCsp } from './buildCsp.js';
+export type { BuildCspArgs } from './buildCsp.js';
 export { buildSecurityHeaders } from './buildSecurityHeaders.js';
-export type { BuildSecurityHeadersArgs, SecurityHeader } from './buildSecurityHeaders.js';
+export type { BuildSecurityHeadersArgs, SecurityHeader, } from './buildSecurityHeaders.js';

dist/modules/security/index.js

@@ -1,3 +1,4 @@
+export { buildCsp } from './buildCsp.js';
 export { buildSecurityHeaders } from './buildSecurityHeaders.js';
 
 //# sourceMappingURL=index.js.map

dist/modules/security/index.js.map

@@ -1 +1 @@
-{"version":3,"sources":["../../../src/modules/security/index.ts"],"sourcesContent":["export { buildSecurityHeaders } from './buildSecurityHeaders.js'\nexport type { BuildSecurityHeadersArgs, SecurityHeader } from './buildSecurityHeaders.js'\n"],"names":["buildSecurityHeaders"],"mappings":"AAAA,SAASA,oBAAoB,QAAQ,4BAA2B"}
+{"version":3,"sources":["../../../src/modules/security/index.ts"],"sourcesContent":["export { buildCsp } from './buildCsp.js'\nexport type { BuildCspArgs } from './buildCsp.js'\nexport { buildSecurityHeaders } from './buildSecurityHeaders.js'\nexport type { BuildSecurityHeadersArgs, SecurityHeader,  } from './buildSecurityHeaders.js'\n"],"names":["buildCsp","buildSecurityHeaders"],"mappings":"AAAA,SAASA,QAAQ,QAAQ,gBAAe;AAExC,SAASC,oBAAoB,QAAQ,4BAA2B"}

docs/security.md

@@ -71,7 +71,44 @@ analytics, Turnstile, fonty). Generyczny CSP byłby albo za luźny (`*` =
 bezużyteczny), albo psułby stronę. Więc plugin daje mechanizm (`additional`),
 projekt dostarcza CSP dopasowany do siebie.
 
-### Budowa CSP — domeny z env, nie hardkod
+### buildCsp — generator CSP (zalecane zamiast ręcznego)
+
+Zamiast pisać surowy CSP w każdym projekcie (ryzyko pominięcia base-uri,
+object-src), użyj `buildCsp` — ma twarde reguły OWASP/Lighthouse wbudowane, a Ty
+włączasz tylko flagi tego, co projekt ładuje:
+
+```ts
+// next.config.ts
+import { buildCsp, buildSecurityHeaders } from '@intecion/ipal-kit'
+
+const csp = buildCsp({
+  mode: 'report-only',              // zacznij tu; 'enforce' gdy konsola czysta
+  r2Url: process.env.R2_PUBLIC_URL, // media R2 → img-src
+  turnstile: true,                  // challenges.cloudflare.com → script/frame/connect
+  analytics: true,                  // GTM + GA
+  youtube: true,                    // youtube → frame-src
+  googleMaps: true,                 // mapy Google
+  // extra: { 'script-src': ['https://inny-skrypt.pl'] },  // dodatkowe źródła
+})
+
+const securityHeaders = buildSecurityHeaders({
+  hsts: process.env.NODE_ENV === 'production',
+  additional: [csp],
+})
+```
+
+**Twarde reguły wbudowane** (zawsze, nie da się zapomnieć): `base-uri 'self'`,
+`object-src 'none'`, `frame-ancestors 'none'`. To te, które Lighthouse/OWASP
+wymagają, a łatwo je pominąć pisząc CSP ręcznie.
+
+`buildCsp` NIE dodaje `'unsafe-eval'` (osłabia CSP) — dodaj przez `extra` tylko
+jeśli biblioteka tego wymaga. `mode: 'report-only'` daje nagłówek
+`…-Report-Only`; `'enforce'` daje `Content-Security-Policy`.
+
+CSP dalej „w projekcie" (Ty wybierasz flagi wg tego, co ładujesz), ale skeleton
+jest z pluginu — każdy projekt ma ten sam zahardowany fundament.
+
+### Budowa CSP — ręcznie (jeśli potrzebujesz pełnej kontroli)
 
 Domenę mediów czytaj z `R2_PUBLIC_URL` (env), nie zaszywaj. Resztę źródeł
 dopasuj do tego, co projekt faktycznie ładuje:
@@ -138,4 +175,26 @@ wpięte i czy Cloudflare (jeśli przed aplikacją) nie filtruje nagłówków.
 
 > Uwaga Cloudflare: jeśli CF jest przed aplikacją, może nadpisywać/filtrować
 > nagłówki. Wtedy ustaw je też w CF (Transform Rules → Modify Response Header)
-> albo upewnij się, że CF przepuszcza nagłówki z origin.
+> albo upewnij się, że CF przepuszcza nagłówki z origin.
+
+
+## COOP (Cross-Origin-Opener-Policy) — domyślnie włączony
+
+buildSecurityHeaders wysyła domyślnie `Cross-Origin-Opener-Policy: same-origin` —
+izoluje kontekst przeglądarki (ochrona przed XS-Leaks / Spectre, wyciekiem
+window.opener). Uniwersalny nagłówek, więc z automatu.
+
+- Domyślnie `same-origin` (najbezpieczniejsze)
+- `coop: 'same-origin-allow-popups'` — jeśli otwierasz popupy OAuth/płatności
+  wymagające window.opener
+- `coop: false` — wyłącz (rzadko potrzebne)
+
+## Trusted Types — NIE wdrażać (na teraz)
+
+NIE wymuszaj `require-trusted-types-for 'script'`. Powód:
+- Audyt Lighthouse to „Bez oceny" (informacyjny/eksperymentalny w Chromium)
+- Wymuszenie bez kompleksowego silnika polityk w Next/React powoduje `TypeError`
+  przy zewnętrznych skryptach manipulujących DOM stringami (Turnstile, GA)
+- Zysk bezpieczeństwa nie równoważy ryzyka zepsucia strony
+
+Zostaw Trusted Types poza CSP, dopóki Next/React nie da natywnego wsparcia.

src/index.ts

@@ -75,18 +75,13 @@ export {
 } from './modules/i18n/index.js'
 export type { LocaleMiddlewareResult } from './modules/i18n/index.js'
 export { createLocaleMiddleware, DEFAULT_MIDDLEWARE_MATCHER } from './modules/i18n/index.js'
-// Media — filename normalization hook for upload collections (Media).
 export { normalizeFilename, normalizeFilenameHook } from './modules/media/index.js'
 export {
   getNotificationTexts,
   NOTIFICATION_FALLBACK,
   resolveFormMessage,
 } from './modules/notifications/index.js'
-export type {
+export type { FormNotificationTexts, NotificationTexts } from './modules/notifications/index.js'
-  FormNotificationTexts,
-  NotificationsData,
-  NotificationTexts,
-} from './modules/notifications/index.js'
 export type { PagesOption, SystemPageRole } from './modules/pages/index.js'
 export { ALL_SYSTEM_PAGE_ROLES, getSystemPagePath } from './modules/pages/index.js'
 export type { GlobalQueryOptions } from './modules/payload/index.js'
@@ -98,24 +93,10 @@ export {
   SITE_SETTINGS_SLUG,
 } from './modules/payload/index.js'
 export { buildSecurityHeaders } from './modules/security/index.js'
+export { buildCsp } from './modules/security/index.js'
+export type { BuildCspArgs } from './modules/security/index.js'
 export type { BuildSecurityHeadersArgs, SecurityHeader } from './modules/security/index.js'
-export {
+
-  buildArticleJsonLd,
-  buildFaqJsonLd,
-  buildIconsMetadata,
-  buildLlmsTxt,
-  buildLocalBusinessJsonLd,
-  buildOrganizationJsonLd,
-  buildServiceJsonLd,
-  validateFaviconField,
-} from './modules/seo/index.js'
-// Structured data (schema.org JSON-LD) — brand/sitelink signals for Google.
-// WebSite (+ optional SearchAction), BreadcrumbList (per page), SiteNavigation.
-export {
-  buildBreadcrumbJsonLd,
-  buildSiteNavigationJsonLd,
-  buildWebSiteJsonLd,
-} from './modules/seo/index.js'
 export type { PageMetadata, SeoMeta, SeoOption } from './modules/seo/index.js'
 export { buildHreflangAlternates, buildMetadata, composeTitle } from './modules/seo/index.js'
 export type { AutoFillMapping, RobotsRules, SitemapEntry } from './modules/seo/index.js'
@@ -127,9 +108,25 @@ export {
   createPageMetadata,
   injectAutoFillMeta,
 } from './modules/seo/index.js'
+export {
+  buildIconsMetadata,
+  buildOrganizationJsonLd,
+  validateFaviconField,
+} from './modules/seo/index.js'
+export {
+  buildBreadcrumbJsonLd,
+  buildSiteNavigationJsonLd,
+  buildWebSiteJsonLd,
+} from './modules/seo/index.js'
+// Local SEO structured data — LocalBusiness (map pack), Service (offering), FAQPage.
+export {
+  buildFaqJsonLd,
+  buildLocalBusinessJsonLd,
+  buildServiceJsonLd,
+} from './modules/seo/index.js'
+export { buildArticleJsonLd } from './modules/seo/index.js'
+export { buildLlmsTxt } from './modules/seo/index.js'
 export { buildSlugField, toSlug } from './modules/slug/index.js'
-// Storage — Cloudflare R2 media offload, configured from .env.
 export { buildR2Storage } from './modules/storage/index.js'
-
 export { ipalKit } from './plugin.js'
 export type { IpalOptions } from './types.js'

src/modules/security/buildCsp.ts

@@ -0,0 +1,112 @@
+export type BuildCspArgs = {
+  /** Google Analytics / GTM — adds googletagmanager + google-analytics. */
+  analytics?: boolean
+  /** Extra sources per directive, merged with the built-ins. */
+  extra?: Partial<Record<CspDirective, string[]>>
+  /** Google Maps embeds — adds maps.google.com / *.gstatic.com. */
+  googleMaps?: boolean
+  /** 'enforce' → Content-Security-Policy; 'report-only' → …-Report-Only header. */
+  mode?: 'enforce' | 'report-only'
+  /** Media/R2 public URL (from R2_PUBLIC_URL) — added to img-src. */
+  r2Url?: string
+  /** Cloudflare Turnstile — adds challenges.cloudflare.com to script/frame/connect. */
+  turnstile?: boolean
+  /** YouTube embeds — adds youtube to frame-src. */
+  youtube?: boolean
+}
+
+type CspDirective =
+  | 'base-uri'
+  | 'connect-src'
+  | 'default-src'
+  | 'font-src'
+  | 'form-action'
+  | 'frame-ancestors'
+  | 'frame-src'
+  | 'img-src'
+  | 'object-src'
+  | 'script-src'
+  | 'style-src'
+
+/**
+ * Builds a Content-Security-Policy string with the hard OWASP/Lighthouse-required
+ * directives baked in, and opt-in sources for common third parties. Solves the
+ * real risk of hand-writing raw CSP per project and forgetting `base-uri 'self'`
+ * or `object-src 'none'`.
+ *
+ * CSP still lives in the project (it lists the project's own domains), but this
+ * helper standardizes the skeleton so every project's CSP has the same hardened
+ * base — you only flip flags for what the project actually loads.
+ *
+ * Returns { key, value } ready for buildSecurityHeaders `additional`:
+ *
+ *   import { buildCsp, buildSecurityHeaders } from '@intecion/ipal-kit'
+ *   const csp = buildCsp({
+ *     mode: 'report-only',            // start here; switch to 'enforce' when clean
+ *     r2Url: process.env.R2_PUBLIC_URL,
+ *     turnstile: true, analytics: true,
+ *   })
+ *   const headers = buildSecurityHeaders({ hsts: prod, additional: [csp] })
+ *
+ * Deploy CSP carefully: start with mode:'report-only', check the console for
+ * violations across the whole site (forms/Turnstile, gallery/R2, embeds), add
+ * missing sources via `extra`, THEN switch to 'enforce'. See docs/security.md.
+ */
+export function buildCsp(args: BuildCspArgs = {}): { key: string; value: string } {
+  const { analytics, extra = {}, googleMaps, mode = 'enforce', r2Url, turnstile, youtube } = args
+
+  const src: Record<CspDirective, string[]> = {
+    'default-src': ["'self'"],
+    // 'unsafe-inline' is hard to avoid with Next/analytics; 'unsafe-eval' is NOT
+    // added by default (weakens CSP) — add via extra only if a library needs it.
+    'connect-src': ["'self'"],
+    'font-src': ["'self'", 'https://fonts.gstatic.com', 'data:'],
+    'form-action': ["'self'"],
+    'frame-src': [],
+    'img-src': ["'self'", 'data:', 'blob:'],
+    'script-src': ["'self'", "'unsafe-inline'"],
+    'style-src': ["'self'", "'unsafe-inline'", 'https://fonts.googleapis.com'],
+    // HARD defaults (OWASP/Lighthouse) — always on, no reason to omit:
+    'base-uri': ["'self'"], // block <base> hijacking
+    'frame-ancestors': ["'none'"], // clickjacking protection (replaces X-Frame-Options)
+    'object-src': ["'none'"], // block <object>/<embed> (Flash-era attack surface)
+  }
+
+  if (r2Url) {src['img-src'].push(r2Url)}
+
+  if (turnstile) {
+    src['script-src'].push('https://challenges.cloudflare.com')
+    src['frame-src'].push('https://challenges.cloudflare.com')
+    src['connect-src'].push('https://challenges.cloudflare.com')
+  }
+
+  if (analytics) {
+    src['script-src'].push('https://www.googletagmanager.com')
+    src['connect-src'].push('https://www.google-analytics.com', 'https://www.googletagmanager.com')
+    src['img-src'].push('https://www.google-analytics.com', 'https://www.googletagmanager.com')
+  }
+
+  if (youtube) {
+    src['frame-src'].push('https://www.youtube.com', 'https://www.youtube-nocookie.com')
+  }
+
+  if (googleMaps) {
+    src['frame-src'].push('https://www.google.com', 'https://maps.google.com')
+    src['script-src'].push('https://maps.googleapis.com')
+    src['img-src'].push('https://maps.gstatic.com', 'https://*.googleapis.com')
+  }
+
+  // Merge caller extras.
+  for (const [dir, values] of Object.entries(extra) as Array<[CspDirective, string[]]>) {
+    if (values && values.length) {src[dir] = [...(src[dir] ?? []), ...values]}
+  }
+
+  const value = (Object.entries(src) as Array<[CspDirective, string[]]>)
+    .filter(([, values]) => values.length > 0)
+    .map(([dir, values]) => `${dir} ${values.join(' ')}`)
+    .join('; ')
+
+  const key =
+    mode === 'report-only' ? 'Content-Security-Policy-Report-Only' : 'Content-Security-Policy'
+  return { key, value }
+}

src/modules/security/buildSecurityHeaders.ts

@@ -11,6 +11,14 @@ export type BuildSecurityHeadersArgs = {
    * domains (scripts, images, fonts, analytics). Keep CSP in your project.
    */
   additional?: SecurityHeader[]
+  /**
+   * Cross-Origin-Opener-Policy. Default 'same-origin' — isolates the browsing
+   * context so a malicious page can't hold a window.opener reference (protects
+   * against XS-Leaks / Spectre-class attacks). Project-independent, so it's a
+   * default. Use 'same-origin-allow-popups' if you open OAuth/payment popups
+   * that need window.opener; false to omit.
+   */
+  coop?: 'same-origin' | 'same-origin-allow-popups' | false
   /**
    * X-Frame-Options value. 'DENY' (default) blocks all framing; 'SAMEORIGIN'
    * allows same-origin framing. Note: CSP frame-ancestors supersedes this in
@@ -69,6 +77,7 @@ export type BuildSecurityHeadersArgs = {
 export function buildSecurityHeaders(args: BuildSecurityHeadersArgs = {}): SecurityHeader[] {
   const {
     additional = [],
+    coop = 'same-origin',
     frameOptions = 'DENY',
     hsts = true,
     hstsIncludeSubDomains = true,
@@ -102,6 +111,11 @@ export function buildSecurityHeaders(args: BuildSecurityHeadersArgs = {}): Secur
     headers.push({ key: 'Permissions-Policy', value: permissionsPolicy })
   }
 
+  // COOP — isolates the browsing context (XS-Leaks / Spectre protection).
+  if (coop) {
+    headers.push({ key: 'Cross-Origin-Opener-Policy', value: coop })
+  }
+
   // Merge additional: same-key entries override the defaults above.
   for (const extra of additional) {
     const i = headers.findIndex((h) => h.key.toLowerCase() === extra.key.toLowerCase())

src/modules/security/index.ts

@@ -1,2 +1,4 @@
+export { buildCsp } from './buildCsp.js'
+export type { BuildCspArgs } from './buildCsp.js'
 export { buildSecurityHeaders } from './buildSecurityHeaders.js'
-export type { BuildSecurityHeadersArgs, SecurityHeader } from './buildSecurityHeaders.js'
+export type { BuildSecurityHeadersArgs, SecurityHeader,  } from './buildSecurityHeaders.js'