# ============================================
# .htaccess - Security & Performance Configuration
# Bank Soal TKA
# ============================================
# 
# SETUP INSTRUCTION:
# Rename this file to .htaccess and put di root folder project
# 

# ============================================
# 1. SECURITY HEADERS
# ============================================

# Prevent directory listing
Options -Indexes

# Prevent access to sensitive files
<FilesMatch "^\.(env|htaccess|htpasswd)$">
    Order allow,deny
    Deny from all
</FilesMatch>

# Deny access to config files
<FilesMatch "^config_.*\.php$">
    Deny from all
</FilesMatch>

# ============================================
# 2. PREVENT FILE INCLUSION ATTACKS
# ============================================

# Disable script execution di uploads folder
<Directory "uploads">
    php_flag engine off
    AddType text/plain .php .phtml .php3 .php4 .php5 .php6 .php7 .phps .pht .phar .shtml .jsp .asp .aspx .cgi .pl .py .sh .bat
</Directory>

# ============================================
# 3. SECURITY HEADERS
# ============================================

<IfModule mod_headers.c>
    # Prevent MIME sniffing
    Header always set X-Content-Type-Options "nosniff"
    
    # Clickjacking protection
    Header always set X-Frame-Options "SAMEORIGIN"
    
    # XSS Protection
    Header always set X-XSS-Protection "1; mode=block"
    
    # Referrer Policy
    Header always set Referrer-Policy "no-referrer-when-downgrade"
    
    # Remove server signature
    Header always unset X-Powered-By
    Header always unset X-AspNet-Version
    Header always unset X-AspNetMvc-Version
</IfModule>

# ============================================
# 4. PERFORMANCE - GZIP COMPRESSION
# ============================================

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

# ============================================
# 5. CACHE CONTROL
# ============================================

<IfModule mod_expires.c>
    ExpiresActive On
    
    # Images
    ExpiresByType image/jpeg "access plus 1 month"
    ExpiresByType image/gif "access plus 1 month"
    ExpiresByType image/png "access plus 1 month"
    ExpiresByType image/webp "access plus 1 month"
    
    # CSS & JS
    ExpiresByType text/css "access plus 1 year"
    ExpiresByType application/javascript "access plus 1 year"
    ExpiresByType application/x-javascript "access plus 1 year"
    
    # HTML (short cache)
    ExpiresByType text/html "access plus 1 day"
    
    # JSON (no cache)
    ExpiresByType application/json "access plus 0 seconds"
</IfModule>

# ============================================
# 6. PREVENT SQL INJECTION & XSS
# ============================================

# Block SQL injection attempts
<IfModule mod_rewrite.c>
    RewriteEngine On
    
    # Block common SQL injection patterns
    RewriteCond %{QUERY_STRING} (\"|\'|exec|insert|select|union|drop|delete|create|update) [NC]
    RewriteRule .* - [F]
    
    # Block executable file uploads
    RewriteCond %{REQUEST_FILENAME} -f
    RewriteCond %{REQUEST_FILENAME} \.(exe|sh|bat|cmd|com|pif|scr)$ [NC]
    RewriteRule .* - [F]
    
    # Redirect to index.php (jika perlu routing)
    # RewriteCond %{REQUEST_FILENAME} !-f
    # RewriteCond %{REQUEST_FILENAME} !-d
    # RewriteRule ^api/(.*)$ api.php?route=$1 [QSA,L]
</IfModule>

# ============================================
# 7. SSL/HTTPS REDIRECT (UNCOMMENT JIKA HTTPS)
# ============================================

# <IfModule mod_rewrite.c>
#     RewriteEngine On
#     RewriteCond %{HTTPS} off
#     RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
# </IfModule>

# ============================================
# 8. DISABLE DANGEROUS METHODS
# ============================================

<Limit TRACE TRACK>
    Deny from all
</Limit>

# ============================================
# 9. CUSTOM ERROR PAGES (OPTIONAL)
# ============================================

# ErrorDocument 400 /error/400.php
# ErrorDocument 403 /error/403.php
# ErrorDocument 404 /error/404.php
# ErrorDocument 500 /error/500.php