Add survey capability

internal/config/cli.go

@@ -38,6 +38,7 @@ func declareFlags(o *Config) {
 	flag.DurationVar(&o.Analysis.HTTPTimeout, "http-timeout", o.Analysis.HTTPTimeout, "Timeout when performing HTTP query")
 	flag.Var(&StringArray{&o.Analysis.RBLs}, "rbl", "Append a RBL (use this option multiple time to append multiple RBLs)")
 	flag.DurationVar(&o.ReportRetention, "report-retention", o.ReportRetention, "How long to keep reports (e.g., 720h, 30d). 0 = keep forever")
+	flag.Var(&URL{&o.SurveyURL}, "survey-url", "URL for user feedback survey")
 
 	// Others flags are declared in some other files likes sources, storages, ... when they need specials configurations
 }

internal/config/config.go

@@ -25,6 +25,7 @@ import (
 	"flag"
 	"fmt"
 	"log"
+	"net/url"
 	"os"
 	"path"
 	"strings"
@@ -41,6 +42,7 @@ type Config struct {
 	Email           EmailConfig
 	Analysis        AnalysisConfig
 	ReportRetention time.Duration // How long to keep reports. 0 = keep forever
+	SurveyURL       url.URL       // URL for user feedback survey
 }
 
 // DatabaseConfig contains database connection settings

internal/config/custom.go

@@ -23,6 +23,7 @@ package config
 
 import (
 	"fmt"
+	"net/url"
 	"strings"
 )
 
@@ -43,3 +44,25 @@ func (i *StringArray) Set(value string) error {
 
 	return nil
 }
+
+type URL struct {
+	URL *url.URL
+}
+
+func (i *URL) String() string {
+	if i.URL != nil {
+		return i.URL.String()
+	} else {
+		return ""
+	}
+}
+
+func (i *URL) Set(value string) error {
+	u, err := url.Parse(value)
+	if err != nil {
+		return err
+	}
+
+	*i.URL = *u
+	return nil
+}