WIP ping support

token-validator/db.go

@@ -88,11 +88,20 @@ CREATE TABLE IF NOT EXISTS student_challenges(
   id_st INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT,
   id_student INTEGER NOT NULL,
   challenge INTEGER NOT NULL,
-  time TIMESTAMP NOT NULL,
+  time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
   value VARCHAR(255) NOT NULL,
   CONSTRAINT token_found UNIQUE (id_student,challenge),
   FOREIGN KEY(id_student) REFERENCES students(id_student)
 ) DEFAULT CHARACTER SET = utf8 COLLATE = utf8_bin;
+`); err != nil {
+		return err
+	}
+	if _, err := db.Exec(`
+CREATE TABLE IF NOT EXISTS student_pong(
+  id_student INTEGER NOT NULL,
+  time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY(id_student) REFERENCES students(id_student)
+) DEFAULT CHARACTER SET = utf8 COLLATE = utf8_bin;
 `); err != nil {
 		return err
 	}

token-validator/ping.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"time"
+)
+
+func init() {
+	router.POST("/api/students/:sid/pong", apiHandler(studentHandler(stdPong), sslOnly))
+}
+
+func stdPong(student Student, body []byte) (interface{}, error) {
+	if res, err := DBExec("INSERT INTO student_pong (id_student, time) VALUES (?, ?)", student.Id, time.Now()); err != nil {
+		return false, err
+	} else if _, err := res.LastInsertId(); err != nil {
+		return false, err
+	} else {
+		return true, err
+	}
+}