mirror of
https://github.com/hay-kot/homebox.git
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bd321af29f
* new PR tasks * add homebox to know words * formatting * bump deps * generate db models * ts errors * drop id * fix accessor * drop unused time field * change CI * add expected error * add type check * resolve serveral type errors * hoise in CI
103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
package main
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import (
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"context"
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"errors"
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"net/http"
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"strings"
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"github.com/hay-kot/homebox/backend/internal/core/services"
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"github.com/hay-kot/homebox/backend/internal/sys/validate"
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"github.com/hay-kot/homebox/backend/pkgs/server"
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)
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type tokenHasKey struct {
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key string
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}
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var hashedToken = tokenHasKey{key: "hashedToken"}
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type RoleMode int
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const (
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RoleModeOr RoleMode = 0
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RoleModeAnd RoleMode = 1
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)
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// mwRoles is a middleware that will validate the required roles are met. All roles
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// are required to be met for the request to be allowed. If the user does not have
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// the required roles, a 403 Forbidden will be returned.
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//
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// WARNING: This middleware _MUST_ be called after mwAuthToken or else it will panic
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func (a *app) mwRoles(rm RoleMode, required ...string) server.Middleware {
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return func(next server.Handler) server.Handler {
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return server.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
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ctx := r.Context()
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maybeToken := ctx.Value(hashedToken)
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if maybeToken == nil {
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panic("mwRoles: token not found in context, you must call mwAuthToken before mwRoles")
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}
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token := maybeToken.(string)
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roles, err := a.repos.AuthTokens.GetRoles(r.Context(), token)
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if err != nil {
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return err
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}
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outer:
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switch rm {
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case RoleModeOr:
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for _, role := range required {
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if roles.Contains(role) {
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break outer
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}
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}
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return validate.NewRequestError(errors.New("Forbidden"), http.StatusForbidden)
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case RoleModeAnd:
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for _, req := range required {
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if !roles.Contains(req) {
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return validate.NewRequestError(errors.New("Unauthorized"), http.StatusForbidden)
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}
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}
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}
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return next.ServeHTTP(w, r)
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})
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}
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}
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// mwAuthToken is a middleware that will check the database for a stateful token
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// and attach it's user to the request context, or return an appropriate error.
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// Authorization support is by token via Headers or Query Parameter
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//
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// Example:
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// - header = "Bearer 1234567890"
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// - query = "?access_token=1234567890"
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func (a *app) mwAuthToken(next server.Handler) server.Handler {
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return server.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
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requestToken := r.Header.Get("Authorization")
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if requestToken == "" {
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// check for query param
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requestToken = r.URL.Query().Get("access_token")
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if requestToken == "" {
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return validate.NewRequestError(errors.New("Authorization header or query is required"), http.StatusUnauthorized)
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}
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}
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requestToken = strings.TrimPrefix(requestToken, "Bearer ")
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r = r.WithContext(context.WithValue(r.Context(), hashedToken, requestToken))
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usr, err := a.services.User.GetSelf(r.Context(), requestToken)
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// Check the database for the token
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if err != nil {
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return validate.NewRequestError(errors.New("Authorization header is required"), http.StatusUnauthorized)
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}
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r = r.WithContext(services.SetUserCtx(r.Context(), &usr, requestToken))
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return next.ServeHTTP(w, r)
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})
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}
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