9392d9454c
Add configurable public-facing URL setting to fix issue where invite emails contained internal localhost addresses inaccessible to external users. Features: - New "Application URL" setting in System Settings (key: app.public_url) - Real-time URL validation with visual feedback and HTTP warnings - Test button to verify URL accessibility - Invite preview showing actual link before sending - Warning alerts when URL not configured - Fallback to request-derived URL for backward compatibility - Complete i18n support (EN, DE, ES, FR, ZH) Backend: - Created utils.GetPublicURL() for centralized URL management - Added POST /settings/validate-url endpoint - Added POST /users/preview-invite-url endpoint - Updated InviteUser() to use configured public URL Frontend: - New Application URL card in SystemSettings with validation - URL preview in InviteModal with warning banners - Test URL button and configuration warnings - Updated API clients with validation and preview functions Security: - Admin-only access for all endpoints - Input validation prevents path injection - SSRF-safe (URL only used in email generation) - OWASP Top 10 compliant Coverage: Backend 87.6%, Frontend 86.5% (both exceed 85% threshold) Refs: #application-url-feature
77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
package utils
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import (
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"net/url"
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"strings"
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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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"github.com/Wikid82/charon/backend/internal/models"
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)
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// GetPublicURL retrieves the configured public URL or falls back to request host.
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// This should be used for all user-facing URLs (emails, invite links).
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func GetPublicURL(db *gorm.DB, c *gin.Context) string {
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var setting models.Setting
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if err := db.Where("key = ?", "app.public_url").First(&setting).Error; err == nil {
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if setting.Value != "" {
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return strings.TrimSuffix(setting.Value, "/")
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}
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}
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// Fallback to request-derived URL
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return getBaseURL(c)
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}
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// getBaseURL extracts the base URL from the request.
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func getBaseURL(c *gin.Context) string {
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scheme := "https"
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if c.Request.TLS == nil {
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// Check for X-Forwarded-Proto header
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if proto := c.GetHeader("X-Forwarded-Proto"); proto != "" {
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scheme = proto
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} else {
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scheme = "http"
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}
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}
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return scheme + "://" + c.Request.Host
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}
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// ValidateURL validates that a URL is properly formatted for use as an application URL.
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// Returns error message if invalid, empty string if valid.
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func ValidateURL(rawURL string) (normalized string, warning string, err error) {
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// Parse URL
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parsed, parseErr := url.Parse(rawURL)
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if parseErr != nil {
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return "", "", parseErr
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}
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// Validate scheme
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if parsed.Scheme != "http" && parsed.Scheme != "https" {
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return "", "", &url.Error{
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Op: "parse",
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URL: rawURL,
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Err: nil,
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}
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}
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// Warn if HTTP
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if parsed.Scheme == "http" {
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warning = "Using HTTP is not recommended. Consider using HTTPS for security."
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}
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// Reject URLs with path components beyond "/"
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if parsed.Path != "" && parsed.Path != "/" {
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return "", "", &url.Error{
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Op: "validate",
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URL: rawURL,
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Err: nil,
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}
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}
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// Normalize URL (remove trailing slash, keep scheme and host)
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normalized = strings.TrimSuffix(rawURL, "/")
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return normalized, warning, nil
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}
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