checker: add verbose flag

checker/checker.go

@@ -14,6 +14,7 @@ import (
 )
 
 var baseChallenge = 100
+var verbose = false
 
 // ICMP
 
@@ -86,10 +87,16 @@ func studentsChecker() {
 		std := s
 		stdIP := adlin.StudentIP(std.Id).String() + "1"
 		go check_ping(stdIP, func(pkt *ping.Packet) {
+			if verbose {
+				log.Printf("%s PONG\n", std.Login)
+			}
 			std.OnPong(true)
 
 			// Check HTTP
 			if err := check_http(stdIP); err == nil {
+				if verbose {
+					log.Printf("%s just unlocked HTTP challenge\n", std.Login)
+				}
 				if _, err := std.UnlockNewChallenge(baseChallenge+0, ""); err != nil {
 					if _, err := std.UpdateUnlockedChallenge(baseChallenge+0, ""); err != nil {
 						log.Printf("Unable to register challenge for %s: %s\n", std.Login, err.Error())
@@ -99,6 +106,9 @@ func studentsChecker() {
 
 			// Check HTTPs
 			if err := check_https(std.MyAssociatedDomain(), stdIP); err == nil {
+				if verbose {
+					log.Printf("%s just unlocked HTTPS challenge\n", std.Login)
+				}
 				if _, err := std.UnlockNewChallenge(baseChallenge+1, ""); err != nil {
 					if _, err := std.UpdateUnlockedChallenge(baseChallenge+1, ""); err != nil {
 						log.Printf("Unable to register challenge for %s: %s\n", std.Login, err.Error())
@@ -108,6 +118,9 @@ func studentsChecker() {
 
 			// Check DNS
 			if err := check_dns(std.MyDelegatedDomain(), stdIP); err == nil {
+				if verbose {
+					log.Printf("%s just unlocked DNS challenge\n", std.Login)
+				}
 				if _, err := std.UnlockNewChallenge(baseChallenge+2, ""); err != nil {
 					if _, err := std.UpdateUnlockedChallenge(baseChallenge+2, ""); err != nil {
 						log.Printf("Unable to register challenge for %s: %s\n", std.Login, err.Error())

checker/main.go

@@ -14,6 +14,7 @@ import (
 func main() {
 	var dsn = flag.String("dsn", adlin.DSNGenerator(), "DSN to connect to the MySQL server")
 	flag.IntVar(&baseChallenge, "basechallenge", baseChallenge, "Base number for current challenges")
+	flag.BoolVar(&verbose, "verbose", verbose, "Enable verbose mode")
 	flag.Parse()
 
 	// Initialize contents