90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
package multiusers
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import (
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"errors"
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"fmt"
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"net/http"
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"strconv"
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"strings"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/ihexxa/quickshare/src/db/userstore"
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q "github.com/ihexxa/quickshare/src/handlers"
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)
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var ErrExpired = errors.New("token is expired")
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func apiRuleCname(role, method, path string) string {
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return fmt.Sprintf("%s-%s-%s", role, method, path)
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}
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func (h *MultiUsersSvc) AuthN() gin.HandlerFunc {
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return func(c *gin.Context) {
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enableAuth := h.cfg.GrabBool("Users.EnableAuth")
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claims := map[string]string{
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q.UserIDParam: "",
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q.UserParam: "",
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q.RoleParam: userstore.VisitorRole,
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q.ExpireParam: "",
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}
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if enableAuth {
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token, err := c.Cookie(q.TokenCookie)
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if err != nil {
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if err != http.ErrNoCookie {
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c.AbortWithStatusJSON(q.ErrResp(c, 401, err))
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return
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}
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// set default values if no cookie is found
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} else if token != "" {
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claims, err = h.deps.Token().FromToken(token, claims)
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if err != nil {
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c.AbortWithStatusJSON(q.ErrResp(c, 401, err))
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return
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}
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now := time.Now().Unix()
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expire, err := strconv.ParseInt(claims[q.ExpireParam], 10, 64)
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if err != nil {
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c.AbortWithStatusJSON(q.ErrResp(c, 401, err))
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return
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} else if expire <= now {
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c.AbortWithStatusJSON(q.ErrResp(c, 401, ErrExpired))
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return
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}
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}
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// set default values if token is empty
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} else {
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claims[q.UserIDParam] = "0"
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claims[q.UserParam] = "admin"
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claims[q.RoleParam] = userstore.AdminRole
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claims[q.ExpireParam] = ""
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}
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for key, val := range claims {
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c.Set(key, val)
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}
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c.Next()
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}
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}
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func (h *MultiUsersSvc) APIAccessControl() gin.HandlerFunc {
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return func(c *gin.Context) {
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role := c.MustGet(q.RoleParam).(string)
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method := c.Request.Method
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accessPath := c.Request.URL.Path
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// we don't lock the map because we only read it
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if h.apiACRules[apiRuleCname(role, method, accessPath)] {
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c.Next()
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return
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} else if accessPath == "/" || // TODO: temporarily allow accessing static resources
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accessPath == "/favicon.ico" ||
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strings.HasPrefix(accessPath, "/static") {
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c.Next()
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return
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}
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c.AbortWithStatusJSON(q.ErrResp(c, 403, q.ErrAccessDenied))
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}
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}
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