/
studentconfirminfo.go
200 lines (168 loc) · 5.48 KB
/
studentconfirminfo.go
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package internal
import (
"context"
"errors"
"fmt"
htmltemplate "html/template"
"net/http"
"strings"
texttemplate "text/template"
"github.com/golang-jwt/jwt/v4"
"github.com/rs/zerolog"
"github.com/sendgrid/sendgrid-go/helpers/mail"
"github.com/Ublius/HSOreCTF/database"
)
func (a *Application) getStudentByToken(ctx context.Context, tokenStr string) (*database.Student, error) {
if tokenStr == "" {
return nil, errors.New("no token")
}
token, err := jwt.ParseWithClaims(tokenStr, &jwt.RegisteredClaims{}, func(token *jwt.Token) (any, error) {
// Don't forget to validate the alg is what you expect:
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
}
return a.Config.ReadSecretKey(), nil
})
if err != nil {
return nil, fmt.Errorf("failed to parse student confirmation token: %w", err)
}
claims, ok := token.Claims.(*jwt.RegisteredClaims)
if !token.Valid || !ok {
return nil, fmt.Errorf("failed to validate token: %w", err)
}
if claims.Issuer != string(IssuerStudentVerify) {
return nil, fmt.Errorf("invalid student verify token: %w", err)
}
return a.DB.GetStudentByEmail(ctx, claims.Subject)
}
func (a *Application) GetStudentConfirmInfoTemplate(r *http.Request) map[string]any {
ctx := r.Context()
tok := r.URL.Query().Get("tok")
student, err := a.getStudentByToken(ctx, tok)
if err != nil {
a.Log.Warn().Err(err).Msg("failed to get student from token")
return nil
}
team, err := a.DB.GetTeamNoMembers(ctx, student.TeamID)
if err != nil {
a.Log.Err(err).Msg("failed to get student's team")
return nil
}
return map[string]any{
"Confirmed": student.EmailConfirmed,
"Student": student,
"Team": team,
"Token": tok,
}
}
func (a *Application) getParentSignFormsLink(email string) (string, error) {
tok := jwt.NewWithClaims(jwt.SigningMethodHS256, &jwt.RegisteredClaims{
Issuer: string(IssuerSignForms),
Subject: email,
})
signedTok, err := tok.SignedString(a.Config.ReadSecretKey())
if err != nil {
return "", err
}
return fmt.Sprintf("%s/register/parent/signforms?tok=%s", a.Config.Domain, signedTok), nil
}
func (a *Application) sendParentEmail(ctx context.Context, student *database.Student, isReminder bool) error {
log := zerolog.Ctx(ctx).With().Str("action", "sendParentEmail").Logger()
toAddress := student.ParentEmail
if student.Age >= 18 {
toAddress = student.Email
}
signURL, err := a.getParentSignFormsLink(student.Email)
if err != nil {
log.Err(err).Msg("failed to sign email login token")
return err
}
templateData := map[string]any{
"Student": student,
"SignURL": signURL,
}
var plainTextContent, htmlContent strings.Builder
texttemplate.Must(texttemplate.ParseFS(emailTemplates, "emailtemplates/forms.txt")).Execute(&plainTextContent, templateData)
htmltemplate.Must(htmltemplate.ParseFS(emailTemplates, "emailtemplates/forms.html")).Execute(&htmlContent, templateData)
subject := "Sign forms to participate in Oresec HSOreCTF"
if isReminder {
subject = fmt.Sprintf("REMINDER: %s", subject)
}
err = a.SendEmail(log, subject,
mail.NewEmail("", toAddress),
plainTextContent.String(),
htmlContent.String())
if err != nil {
log.Err(err).Msg("failed to send email")
return err
}
log.Info().Msg("successfully sent email")
return nil
}
func (a *Application) HandleStudentConfirmEmail(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
log := a.Log.With().Str("page_name", "student_confirm_email").Logger()
tok := r.URL.Query().Get("tok")
student, err := a.getStudentByToken(ctx, tok)
if err != nil {
log.Warn().Err(err).Msg("failed to get student from token")
a.StudentConfirmInfoRenderer(w, r, map[string]any{
"Error": "Failed to find any such student.",
})
return
}
if err := r.ParseForm(); err != nil {
log.Err(err).Msg("failed to parse form")
w.WriteHeader(http.StatusBadRequest)
return
}
team, err := a.DB.GetTeamNoMembers(ctx, student.TeamID)
if err != nil {
log.Err(err).Msg("failed to get student's team")
w.WriteHeader(http.StatusBadRequest)
return
}
sendEmail := false
log.Info().Any("student", student).Msg("confirming email")
if !student.EmailConfirmed {
if r.Form.Has("confirm-info-correct") {
student.EmailConfirmed = true
} else {
log.Warn().Msg("student did not confirm info")
w.WriteHeader(http.StatusBadRequest)
return
}
if student.Age < 18 && student.ParentEmail == "" {
parentEmail := r.FormValue("parent-email")
if parentEmail == "" {
log.Warn().Err(err).Msg("parent email is required for students under 18")
w.WriteHeader(http.StatusInternalServerError)
return
}
student.ParentEmail = parentEmail
}
sendEmail = true
}
log.Info().Any("send_email", sendEmail).Any("student", student).Msg("done confirming")
// student.CampusTour = r.Form.Has("campus-tour")
student.DietaryRestrictions = r.FormValue("dietary-restrictions")
if err = a.DB.ConfirmStudent(ctx, student.Email, student.DietaryRestrictions, student.ParentEmail); err != nil {
log.Err(err).Msg("failed to confirm student")
w.WriteHeader(http.StatusBadRequest)
return
}
log.Info().Any("s", student).Msg("student confirmed")
if sendEmail {
if err := a.sendParentEmail(ctx, student, false); err != nil {
log.Err(err).Msg("failed to send email")
w.WriteHeader(http.StatusInternalServerError)
return
}
}
a.StudentConfirmInfoRenderer(w, r, map[string]any{
"Confirmed": student.EmailConfirmed,
"Student": student,
"Team": team,
"Token": tok,
})
}