75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
package rbac
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import (
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"context"
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"net/http"
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"git.haelnorr.com/h/golib/hws"
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"git.haelnorr.com/h/oslstats/internal/contexts"
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"git.haelnorr.com/h/oslstats/internal/db"
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"git.haelnorr.com/h/oslstats/internal/permissions"
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"git.haelnorr.com/h/oslstats/internal/roles"
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"github.com/pkg/errors"
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"github.com/uptrace/bun"
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)
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// LoadPermissionsMiddleware loads user permissions into context after authentication
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// MUST run AFTER auth.Authenticate() middleware
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func (c *Checker) LoadPermissionsMiddleware() hws.Middleware {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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user := db.CurrentUser(r.Context())
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// Build permission cache
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cache := &contexts.PermissionCache{
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Permissions: make(map[permissions.Permission]bool),
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Roles: make(map[roles.Role]bool),
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}
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defer func() {
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ctx := context.WithValue(r.Context(), contexts.PermissionCacheKey, cache)
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next.ServeHTTP(w, r.WithContext(ctx))
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}()
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if user == nil {
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return
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}
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var roles_ []*db.Role
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var perms []*db.Permission
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if err := db.WithTxFailSilently(r.Context(), c.conn, func(ctx context.Context, tx bun.Tx) error {
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var err error
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roles_, err = user.GetRoles(ctx, tx)
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if err != nil {
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return errors.Wrap(err, "user.GetRoles")
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}
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perms, err = user.GetPermissions(ctx, tx)
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if err != nil {
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return errors.Wrap(err, "user.GetPermissions")
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}
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return nil
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}); err != nil {
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c.s.LogError(hws.HWSError{
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Message: "Database error",
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Error: err,
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Level: hws.ErrorERROR,
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})
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return
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}
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// Check for wildcard permission
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hasWildcard := false
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for _, perm := range perms {
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cache.Permissions[perm.Name] = true
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if perm.Name == permissions.Wildcard {
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hasWildcard = true
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}
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}
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cache.HasWildcard = hasWildcard
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for _, role := range roles_ {
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cache.Roles[role.Name] = true
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}
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})
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}
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}
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