247 lines
8.2 KiB
Go
247 lines
8.2 KiB
Go
package adlin
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import (
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"crypto/hmac"
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"crypto/sha512"
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"fmt"
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"time"
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)
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type Student struct {
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Id int64 `json:"id"`
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Login string `json:"login"`
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Time *time.Time `json:"time"`
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IP *string `json:"ip"`
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MAC *string `json:"mac"`
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AssociatedDomain *string `json:"associated_domain,omitempty"`
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DelegatedDomain *string `json:"delegated_domain,omitempty"`
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}
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func GetStudents() (students []*Student, err error) {
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if rows, errr := DBQuery("SELECT S.id_student, S.login, MAX(L.time), L.ip, L.mac, S.associatedDomain, S.delegatedDomain FROM students S INNER JOIN (SELECT a.id_student, a.time, a.ip, a.mac FROM student_login a INNER JOIN (SELECT id_student, MAX(time) AS time FROM student_login GROUP BY id_student) b ON a.id_student = b.id_student AND a.time = b.time) L ON S.id_student = L.id_student GROUP BY id_student"); errr != nil {
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return nil, errr
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} else {
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defer rows.Close()
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for rows.Next() {
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s := &Student{}
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if err = rows.Scan(&s.Id, &s.Login, &s.Time, &s.IP, &s.MAC, &s.AssociatedDomain, &s.DelegatedDomain); err != nil {
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return
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}
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students = append(students, s)
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}
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if err = rows.Err(); err != nil {
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return
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}
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return
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}
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}
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func GetStudent(id int) (s *Student, err error) {
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s = new(Student)
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err = DBQueryRow("SELECT S.id_student, S.login, MAX(L.time), L.ip, L.mac, S.associatedDomain, S.delegatedDomain FROM students S INNER JOIN (SELECT a.id_student, a.time, a.ip, a.mac FROM student_login a INNER JOIN (SELECT id_student, MAX(time) AS time FROM student_login GROUP BY id_student) b ON a.id_student = b.id_student AND a.time = b.time) L ON S.id_student = L.id_student WHERE S.id_student=?", id).Scan(&s.Id, &s.Login, &s.Time, &s.IP, &s.MAC, &s.AssociatedDomain, &s.DelegatedDomain)
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return
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}
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func GetStudentByLogin(login string) (s *Student, err error) {
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s = new(Student)
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err = DBQueryRow("SELECT S.id_student, S.login, MAX(L.time), L.ip, L.mac, S.associatedDomain, S.delegatedDomain FROM students S INNER JOIN (SELECT a.id_student, a.time, a.ip, a.mac FROM student_login a INNER JOIN (SELECT id_student, MAX(time) AS time FROM student_login GROUP BY id_student) b ON a.id_student = b.id_student AND a.time = b.time) L ON S.id_student = L.id_student WHERE login=?", login).Scan(&s.Id, &s.Login, &s.Time, &s.IP, &s.MAC, &s.AssociatedDomain, &s.DelegatedDomain)
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return
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}
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func StudentExists(login string) bool {
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var z int
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err := DBQueryRow("SELECT 1 FROM students WHERE login=?", login).Scan(&z)
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return err == nil && z == 1
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}
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func NewStudent(login string) (*Student, error) {
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t := time.Now()
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if res, err := DBExec("INSERT INTO students (login, time) VALUES (?, ?)", login, t); err != nil {
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return nil, err
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} else if sid, err := res.LastInsertId(); err != nil {
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return nil, err
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} else {
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return &Student{sid, login, &t, nil, nil, nil, nil}, nil
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}
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}
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func (s *Student) GetPKey() []byte {
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h := hmac.New(sha512.New512_224, []byte(SharedSecret))
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h.Write([]byte(s.Login))
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return h.Sum(nil)
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}
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func (s *Student) Update() (int64, error) {
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if res, err := DBExec("UPDATE students SET login = ?, time = ?, associatedDomain = ?, delegatedDomain = ? WHERE id_student = ?", s.Login, s.Time, s.AssociatedDomain, s.DelegatedDomain, s.Id); err != nil {
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return 0, err
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} else if nb, err := res.RowsAffected(); err != nil {
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return 0, err
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} else {
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return nb, err
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}
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}
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func (s *Student) Delete() (int64, error) {
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if res, err := DBExec("DELETE FROM students WHERE id_student = ?", s.Id); err != nil {
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return 0, err
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} else if nb, err := res.RowsAffected(); err != nil {
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return 0, err
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} else {
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return nb, err
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}
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}
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func ClearStudents() (int64, error) {
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if res, err := DBExec("DELETE FROM students"); err != nil {
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return 0, err
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} else if nb, err := res.RowsAffected(); err != nil {
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return 0, err
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} else {
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return nb, err
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}
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}
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type UnlockedChallenge struct {
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Id int64 `json:"id,omitempty"`
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IdStudent int64 `json:"id_student"`
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Challenge int `json:"challenge,omitempty"`
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Time *time.Time `json:"time,omitempty"`
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Value interface{} `json:"value,omitempty"`
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LastCheck *time.Time `json:"last_check,omitempty"`
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Error string `json:"error,omitempty"`
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}
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func (s *Student) GetStates() (ucs []*UnlockedChallenge, err error) {
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if rows, errr := DBQuery("SELECT id_st, challenge, time FROM student_challenges WHERE id_student = ?", s.Id); errr != nil {
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return nil, errr
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} else {
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defer rows.Close()
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for rows.Next() {
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u := &UnlockedChallenge{}
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u.IdStudent = s.Id
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if err = rows.Scan(&u.Id, &u.Challenge, &u.Time); err != nil {
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return
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}
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ucs = append(ucs, u)
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}
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if err = rows.Err(); err != nil {
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return
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}
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return
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}
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}
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func (s *Student) GetChallengeError(challenge_id int) (uc *ErroredChallenge, err error) {
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uc = new(ErroredChallenge)
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err = DBQueryRow("SELECT id_st, challenge, time, error FROM student_challenge_errors WHERE id_student = ? AND challenge = ?", s.Id, challenge_id).Scan(&uc.Id, &uc.Challenge, &uc.Time, &uc.Error)
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return
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}
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func (s *Student) GetChallengeErrors() (ucs []*ErroredChallenge, err error) {
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if rows, errr := DBQuery("SELECT id_st, challenge, time, error FROM student_challenge_errors WHERE id_student = ?", s.Id); errr != nil {
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return nil, errr
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} else {
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defer rows.Close()
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for rows.Next() {
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u := &ErroredChallenge{}
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u.IdStudent = s.Id
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if err = rows.Scan(&u.Id, &u.Challenge, &u.Time, &u.Error); err != nil {
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return
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}
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ucs = append(ucs, u)
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}
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if err = rows.Err(); err != nil {
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return
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}
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return
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}
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}
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func (s *Student) GetStatesByChallenge() (ucs []*UnlockedChallenge, err error) {
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if rows, errr := DBQuery("SELECT id_st, challenge, MIN(time), value FROM student_challenges WHERE id_student = ? GROUP BY challenge, id_student", s.Id); errr != nil {
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return nil, errr
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} else {
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defer rows.Close()
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for rows.Next() {
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u := &UnlockedChallenge{}
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u.IdStudent = s.Id
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if err = rows.Scan(&u.Id, &u.Challenge, &u.Time, &u.Value); err != nil {
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return
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}
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ucs = append(ucs, u)
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}
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if err = rows.Err(); err != nil {
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return
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}
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return
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}
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}
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func (s *Student) UnlockChallenge(challenge int, value string) (uc *UnlockedChallenge, err error) {
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if uc, err = s.UnlockNewChallenge(challenge, value); err != nil {
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if uc, err = s.UpdateUnlockedChallenge(challenge, value); err != nil {
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return
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}
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}
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s.RegisterChallengeError(challenge, fmt.Errorf("OK"))
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return
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}
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func (s *Student) UnlockNewChallenge(challenge int, value string) (*UnlockedChallenge, error) {
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if res, err := DBExec("INSERT INTO student_challenges (id_student, challenge, time, value) VALUES (?, ?, ?, ?)", s.Id, challenge, time.Now(), value); err != nil {
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return nil, err
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} else if utid, err := res.LastInsertId(); err != nil {
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return nil, err
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} else {
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now := time.Now()
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return &UnlockedChallenge{utid, s.Id, challenge, &now, value, nil, ""}, err
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}
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}
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func (s *Student) UpdateUnlockedChallenge(challenge int, value string) (*UnlockedChallenge, error) {
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if _, err := DBExec("UPDATE student_challenges SET time = ?, value = ? WHERE id_student = ? AND challenge = ?", time.Now(), value, s.Id, challenge); err != nil {
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return nil, err
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} else {
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now := time.Now()
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return &UnlockedChallenge{0, s.Id, challenge, &now, value, nil, ""}, err
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}
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}
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type ErroredChallenge struct {
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Id int64 `json:"id,omitempty"`
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IdStudent int64 `json:"id_student"`
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Challenge int `json:"challenge,omitempty"`
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Time time.Time `json:"time"`
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Error string `json:"error,omitempty"`
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}
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func (s *Student) RegisterChallengeError(challenge int, err error) error {
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if _, errr := DBExec("INSERT INTO student_challenge_errors (id_student, challenge, time, error) VALUES (?, ?, ?, ?)", s.Id, challenge, time.Now(), err.Error()); errr == nil {
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return nil
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} else if _, errr := DBExec("UPDATE student_challenge_errors SET time = ?, error = ? WHERE id_student = ? AND challenge = ?", time.Now(), err.Error(), s.Id, challenge); errr != nil {
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return errr
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} else {
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return nil
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}
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}
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func (s *Student) RegisterAccess(ip, mac string) error {
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if res, err := DBExec("INSERT INTO student_login (id_student, ip, mac, time) VALUES (?, ?, ?, ?)", s.Id, ip, mac, time.Now()); err != nil {
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return err
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} else if _, err := res.LastInsertId(); err != nil {
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return err
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} else {
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return err
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}
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}
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