# HexaHost.de .htaccess
# Sicherheit und Performance-Optimierungen

# Sicherheitsheader
<IfModule mod_headers.c>
    Header always set X-Content-Type-Options nosniff
    # X-Frame-Options entfernt, da sonst Tag Assistant (Iframe) nicht funktionieren kann.
    # Absicherung erfolgt stattdessen granular über CSP frame-ancestors.
    Header always set X-XSS-Protection "1; mode=block"
    Header always set Referrer-Policy "strict-origin-when-cross-origin"
    Header always set Permissions-Policy "geolocation=(), microphone=(), camera=()"
    
    # Content Security Policy - Schutz vor XSS und Code-Injection
    Header always set Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' https://www.googletagmanager.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' https://cdn.hexahost.de https://www.google-analytics.com https://www.googletagmanager.com data:; connect-src 'self' https://www.googletagmanager.com https://www.google.com https://www.google-analytics.com https://region1.google-analytics.com https://stats.g.doubleclick.net; frame-ancestors 'self' https://tagassistant.google.com; base-uri 'self'; form-action 'self'"
    
    # Strict-Transport-Security (HSTS) - Erzwingt HTTPS
    Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
</IfModule>

# HTTPS erzwingen (falls SSL verfügbar)
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{HTTPS} off
    RewriteCond %{HTTP_HOST} ^(www\.)?(hexahost\.de|dev\.hexahost\.de)$ [NC]
    RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
    
    # PHP-Endung aus URLs entfernen
    # Schritt 1: Wenn .php in URL, weiterleiten auf saubere URL (301)
    RewriteCond %{THE_REQUEST} \s/([^.]+)\.php[\s?] [NC]
    RewriteCond %{REQUEST_URI} !^/(contact-handler|config/)
    RewriteRule ^(.+)\.php$ /$1 [R=301,L]
    
    # Schritt 2: index.php zur Startseite weiterleiten
    RewriteCond %{THE_REQUEST} \s/index\.php[\s?] [NC]
    RewriteRule ^index\.php$ / [R=301,L]
    
    # Schritt 3: Saubere URLs intern auf .php-Dateien umleiten
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME}.php -f
    RewriteRule ^(.+)$ $1.php [L]
    
    # HTML zu PHP Weiterleitungen (Legacy-Support)
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^([^\.]+)\.html$ $1 [L,R=301]
</IfModule>

# Konfigurationsdateien schützen
<Files "mail-config.php">
    Order allow,deny
    Deny from all
</Files>


# Config-Verzeichnis schützen
<IfModule mod_rewrite.c>
    RewriteRule ^config/ - [F,L]
</IfModule>

# Includes-Verzeichnis schützen (direkter Zugriff verhindern)
<IfModule mod_rewrite.c>
    RewriteRule ^includes/ - [F,L]
</IfModule>

# Logs-Verzeichnis schützen
<IfModule mod_rewrite.c>
    RewriteRule ^logs/ - [F,L]
</IfModule>

# Cache-Header für statische Dateien
<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresByType text/css "access plus 1 month"
    ExpiresByType application/javascript "access plus 1 month"
    ExpiresByType image/png "access plus 1 month"
    ExpiresByType image/jpg "access plus 1 month"
    ExpiresByType image/jpeg "access plus 1 month"
    ExpiresByType image/gif "access plus 1 month"
    ExpiresByType image/svg+xml "access plus 1 month"
    ExpiresByType image/webp "access plus 1 month"
    ExpiresByType font/woff "access plus 1 month"
    ExpiresByType font/woff2 "access plus 1 month"
</IfModule>

# Gzip-Kompression
<IfModule mod_deflate.c>
    AddOutputFilterByType DEFLATE text/plain
    AddOutputFilterByType DEFLATE text/html
    AddOutputFilterByType DEFLATE text/xml
    AddOutputFilterByType DEFLATE text/css
    AddOutputFilterByType DEFLATE application/xml
    AddOutputFilterByType DEFLATE application/xhtml+xml
    AddOutputFilterByType DEFLATE application/rss+xml
    AddOutputFilterByType DEFLATE application/javascript
    AddOutputFilterByType DEFLATE application/x-javascript
</IfModule>

# PHP-Einstellungen
<IfModule mod_php.c>
    php_value upload_max_filesize 10M
    php_value post_max_size 10M
    php_value max_execution_time 30
    php_value memory_limit 128M
</IfModule>

# Fehlerbehandlung
ErrorDocument 400 /404.php
ErrorDocument 401 /404.php
ErrorDocument 403 /404.php
ErrorDocument 404 /404.php
ErrorDocument 500 /500.php
ErrorDocument 502 /500.php
ErrorDocument 503 /500.php

# Verzeichnis-Listing deaktivieren
Options -Indexes

# Datei-Zugriff beschränken
<FilesMatch "\.(htaccess|htpasswd|ini|log|sh|inc|bak|sql|env|yml|yaml|json|xml|md)$">
    Order Allow,Deny
    Deny from all
</FilesMatch>

# Spezifische Ausnahmen für benötigte XML-Dateien
<FilesMatch "^(sitemap\.xml|robots\.txt)$">
    Order Allow,Deny
    Allow from all
</FilesMatch>