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Add sections header to the validation.js and four more go-files

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This commit is contained in:
Michael Reber
2026-02-18 01:00:40 +01:00
parent d99fea38a5
commit 45f5907f7c
6 changed files with 268 additions and 259 deletions
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70
pkg/web/static/js/validation.js
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@@ -1,8 +1,11 @@
// Validation functions for Fail2ban UI
// Validation for Fail2ban UI settings and forms.
// =========================================================================
// Field Validators
// =========================================================================
function validateTimeFormat(value, fieldName) {
if (!value || !value.trim()) return { valid: true }; // Empty is OK
// Support: s (seconds), m (minutes), h (hours), d (days), w (weeks), mo (months), y (years)
if (!value || !value.trim()) return { valid: true };
const timePattern = /^\d+([smhdwy]|mo)$/i;
if (!timePattern.test(value.trim())) {
return {
@@ -14,7 +17,7 @@ function validateTimeFormat(value, fieldName) {
}
function validateMaxRetry(value) {
if (!value || value.trim() === '') return { valid: true }; // Empty is OK
if (!value || value.trim() === '') return { valid: true };
const num = parseInt(value, 10);
if (isNaN(num) || num < 1) {
return {
@@ -26,7 +29,7 @@ function validateMaxRetry(value) {
}
function validateEmail(value) {
if (!value || !value.trim()) return { valid: true }; // Empty is OK
if (!value || !value.trim()) return { valid: true };
const emailPattern = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
if (!emailPattern.test(value.trim())) {
return {
@@ -37,24 +40,18 @@ function validateEmail(value) {
return { valid: true };
}
// Validate IP address (IPv4, IPv6, CIDR, or hostname)
function isValidIP(ip) {
if (!ip || !ip.trim()) return false;
ip = ip.trim();
// Allow hostnames (fail2ban supports DNS hostnames)
// Basic hostname validation: alphanumeric, dots, hyphens
// fail2ban accepts hostnames in addition to IPs
const hostnamePattern = /^[a-zA-Z0-9]([a-zA-Z0-9\-\.]*[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9\-\.]*[a-zA-Z0-9])?)*$/;
// IPv4 with optional CIDR
const ipv4Pattern = /^(\d{1,3}\.){3}\d{1,3}(\/\d{1,2})?$/;
// IPv6 with optional CIDR (simplified - allows various IPv6 formats)
// IPv6 with optional CIDR
const ipv6Pattern = /^([0-9a-fA-F]{0,4}:){2,7}[0-9a-fA-F]{0,4}(\/\d{1,3})?$/;
const ipv6CompressedPattern = /^::([0-9a-fA-F]{0,4}:){0,6}[0-9a-fA-F]{0,4}(\/\d{1,3})?$/;
const ipv6FullPattern = /^([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}(\/\d{1,3})?$/;
// Check IPv4
if (ipv4Pattern.test(ip)) {
const parts = ip.split('/');
const octets = parts[0].split('.');
@@ -68,8 +65,6 @@ function isValidIP(ip) {
}
return true;
}
// Check IPv6
if (ipv6Pattern.test(ip) || ipv6CompressedPattern.test(ip) || ipv6FullPattern.test(ip)) {
if (ip.includes('/')) {
const parts = ip.split('/');
@@ -78,41 +73,40 @@ function isValidIP(ip) {
}
return true;
}
// Check hostname
if (hostnamePattern.test(ip)) {
return true;
}
return false;
}
function validateIgnoreIPs() {
if (typeof getIgnoreIPsArray !== 'function') {
console.error('getIgnoreIPsArray function not found');
return { valid: true }; // Skip validation if function not available
return { valid: true };
}
const ignoreIPs = getIgnoreIPsArray();
const invalidIPs = [];
for (let i = 0; i < ignoreIPs.length; i++) {
const ip = ignoreIPs[i];
if (!isValidIP(ip)) {
invalidIPs.push(ip);
}
}
if (invalidIPs.length > 0) {
return {
valid: false,
message: 'Invalid IP addresses, CIDR notation, or hostnames: ' + invalidIPs.join(', ')
};
}
return { valid: true };
}
// =========================================================================
// Error Display
// =========================================================================
function showFieldError(fieldId, message) {
const errorElement = document.getElementById(fieldId + 'Error');
const inputElement = document.getElementById(fieldId);
@@ -139,10 +133,12 @@ function clearFieldError(fieldId) {
}
}
// =========================================================================
// Form Validation
// =========================================================================
function validateAllSettings() {
let isValid = true;
// Validate bantime
const banTime = document.getElementById('banTime');
if (banTime) {
const banTimeValidation = validateTimeFormat(banTime.value, 'bantime');
@@ -153,8 +149,7 @@ function validateAllSettings() {
clearFieldError('banTime');
}
}
// Validate findtime
const findTime = document.getElementById('findTime');
if (findTime) {
const findTimeValidation = validateTimeFormat(findTime.value, 'findtime');
@@ -165,8 +160,7 @@ function validateAllSettings() {
clearFieldError('findTime');
}
}
// Validate max retry
const maxRetry = document.getElementById('maxRetry');
if (maxRetry) {
const maxRetryValidation = validateMaxRetry(maxRetry.value);
@@ -177,8 +171,7 @@ function validateAllSettings() {
clearFieldError('maxRetry');
}
}
// Validate email
const destEmail = document.getElementById('destEmail');
if (destEmail) {
const emailValidation = validateEmail(destEmail.value);
@@ -189,11 +182,9 @@ function validateAllSettings() {
clearFieldError('destEmail');
}
}
// Validate IgnoreIPs
const ignoreIPsValidation = validateIgnoreIPs();
if (!ignoreIPsValidation.valid) {
// Show error for ignoreIPs field
const errorContainer = document.getElementById('ignoreIPsError');
if (errorContainer) {
errorContainer.textContent = ignoreIPsValidation.message;
@@ -210,11 +201,9 @@ function validateAllSettings() {
errorContainer.textContent = '';
}
}
return isValid;
}
// Setup validation on blur for all fields
function setupFormValidation() {
const banTimeInput = document.getElementById('banTime');
const findTimeInput = document.getElementById('findTime');
@@ -231,7 +220,7 @@ function setupFormValidation() {
}
});
}
if (findTimeInput) {
findTimeInput.addEventListener('blur', function() {
const validation = validateTimeFormat(this.value, 'findtime');
@@ -242,7 +231,7 @@ function setupFormValidation() {
}
});
}
if (maxRetryInput) {
maxRetryInput.addEventListener('blur', function() {
const validation = validateMaxRetry(this.value);
@@ -253,7 +242,7 @@ function setupFormValidation() {
}
});
}
if (destEmailInput) {
destEmailInput.addEventListener('blur', function() {
const validation = validateEmail(this.value);
@@ -265,4 +254,3 @@ function setupFormValidation() {
});
}
}