116 lines
2.9 KiB
Go
116 lines
2.9 KiB
Go
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package handlers
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import (
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"errors"
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"strings"
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"time"
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jwt "github.com/dgrijalva/jwt-go"
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"github.com/gofiber/fiber/v2"
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log "github.com/sirupsen/logrus"
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"gitlab.larvit.se/power-plan/auth/src/db"
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)
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func (h Handlers) returnTokens(account db.Account, c *fiber.Ctx) error {
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expirationTime := time.Now().Add(15 * time.Minute)
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claims := &Claims{
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AccountID: account.ID.String(),
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AccountName: account.Name,
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AccountFields: account.Fields,
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StandardClaims: jwt.StandardClaims{
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ExpiresAt: expirationTime.Unix(),
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},
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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tokenString, err := token.SignedString(h.JwtKey)
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if err != nil {
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log.Error("Could not create token string, err: " + err.Error())
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return c.Status(500).JSON([]ResJSONError{{Error: "Could not create JWT token string"}})
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}
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renewalToken, renewalTokenErr := h.Db.RenewalTokenGet(account.ID.String())
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if renewalTokenErr != nil {
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log.Error("Could not create renewal token, err: " + renewalTokenErr.Error())
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return c.Status(500).JSON([]ResJSONError{{Error: "Could not create renewal token"}})
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}
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return c.Status(200).JSON(ResToken{
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JWT: tokenString,
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RenewalToken: renewalToken,
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})
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}
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func (h Handlers) parseJWT(JWT string) (Claims, error) {
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logContext := log.WithFields(log.Fields{"JWT": JWT})
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logContext.Trace("Parsing JWT")
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JWT = strings.TrimPrefix(JWT, "bearer ") // Since the Authorization header should always start with "bearer "
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logContext.WithFields(log.Fields{"TrimmedJWT": JWT}).Trace("JWT trimmed")
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claims := &Claims{}
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token, err := jwt.ParseWithClaims(JWT, claims, func(token *jwt.Token) (interface{}, error) {
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return h.JwtKey, nil
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})
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if err != nil {
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return Claims{}, err
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}
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if !token.Valid {
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err := errors.New("Invalid token")
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return Claims{}, err
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}
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return *claims, nil
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}
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func (h Handlers) parseHeaders(c *fiber.Ctx) map[string]string {
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headersMap := make(map[string]string)
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headersString := c.Request().Header.String()
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headersLines := strings.Split(headersString, "\r\n")
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for _, line := range headersLines {
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lineParts := strings.Split(line, ": ")
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if len(lineParts) == 1 {
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log.WithFields(log.Fields{"line": line}).Trace("Ignoring header line")
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} else {
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headersMap[lineParts[0]] = lineParts[1]
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}
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}
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return headersMap
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}
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// RequireAdminRole returns nil if no error is found
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func (h Handlers) RequireAdminRole(c *fiber.Ctx) error {
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headers := h.parseHeaders(c)
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if headers["Authorization"] == "" {
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return errors.New("Authorization header is missing")
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}
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claims, claimsErr := h.parseJWT(headers["Authorization"])
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if claimsErr != nil {
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return claimsErr
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}
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if claims.AccountFields == nil {
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return errors.New("Account have no fields at all")
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}
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if claims.AccountFields["role"] == nil {
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return errors.New("Account have no field named \"role\"")
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}
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for _, role := range claims.AccountFields["role"] {
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if role == "admin" {
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return nil
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}
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}
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return errors.New("No \"admin\" role found on account")
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}
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