Autogen the Origin of the log and use it to replace the hardcoded ct.ipng.ch strings in gen-html and gen-env

tesseract/genconf/main.go

@@ -41,6 +41,7 @@ type Log struct {
 	PublicKeyPEM    string
 	PublicKeyDERB64 string
 	PublicKeyBase64 string
+	Origin          string
 }
 
 func main() {
@@ -99,6 +100,15 @@ func loadConfig(yamlFile string) Config {
 		if config.Logs[i].Period == 0 {
 			config.Logs[i].Period = 200
 		}
+
+		// Extract hostname from SubmissionPrefix to set Origin
+		if config.Logs[i].SubmissionPrefix != "" {
+			hostname, err := extractHostname(config.Logs[i].SubmissionPrefix)
+			if err != nil {
+				log.Fatalf("Failed to parse SubmissionPrefix URL for %s: %v", config.Logs[i].ShortName, err)
+			}
+			config.Logs[i].Origin = hostname
+		}
 	}
 
 	return config