John O'Keefe
6d01bd7971
The strict CSP sweep surfaced a final class of bindings on the audio reader and book detail pages that referenced browser globals (Number, String, Math, window, document) — identifiers the CSP-safe evaluator resolves only from component scope: - audio reader: scrub input, volume slider/input, speed+skip active styles, genre tick styles, and the default-speed select now route through component methods (onScrubInput, setVolumeFromEvent, applyDefaultSpeedFromSelect, volumeLabel, railTickStyle, isSkipActive, isSpeedActive, isDefaultSpeed) - book detail: cover-upload click and banner edit validation moved to component methods (triggerCoverUpload, bannerEditHasText) - admin: Refresh-to-View-Books reload moved to reloadPage() - reader: note edit validation moved to noteEditHasText() CSP header: frame-src 'self' blob: (foliate renders book content in a blob: frame) and blob: on font-src/img-src (EPUB-embedded fonts and images load as blob: URLs inside that frame). 'unsafe-eval' is gone: script-src is 'self' plus 'unsafe-inline' for the pre-paint theme flash guard. Also: header openPanel promoted to the root component (one open panel across all sidebar panels, persisted in init), with the sidebar shell reduced to themeMode state + methods; fmtTime restored to the audioReader component (ripped by the unexport pass — time displays were dead on the audio reader).
30 lines
1.4 KiB
Go
30 lines
1.4 KiB
Go
package middleware
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import (
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"github.com/labstack/echo/v5"
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)
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// SecurityHeadersMiddleware adds security headers to all responses
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func SecurityHeadersMiddleware() echo.MiddlewareFunc {
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return func(next echo.HandlerFunc) echo.HandlerFunc {
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return func(c *echo.Context) error {
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// Add security headers
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c.Response().Header().Set("X-Content-Type-Options", "nosniff")
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c.Response().Header().Set("X-Frame-Options", "DENY")
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c.Response().Header().Set("X-XSS-Protection", "1; mode=block")
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c.Response().Header().Set("Strict-Transport-Security", "max-age=31536000; includeSubDomains; preload")
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// script-src notes: 'unsafe-inline' is required by the pre-paint
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// theme flash guard (inline <script>). Alpine runs via its
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// CSP-safe build (@alpinejs/csp), which needs no eval — do NOT
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// add 'unsafe-eval' here without removing that build.
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// font/img blob: — the reader renders EPUB-embedded fonts and
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// images from blob: URLs inside the foliate content frame.
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c.Response().Header().Set("Content-Security-Policy", "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https: blob:; font-src 'self' data: blob:; frame-src 'self' blob:")
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c.Response().Header().Set("Referrer-Policy", "strict-origin-when-cross-origin")
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c.Response().Header().Set("Permissions-Policy", "geolocation=(), microphone=(), camera=()")
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return next(c)
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}
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}
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}
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