91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package vault
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import (
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"context"
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"sort"
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"github.com/hashicorp/vault/helper/namespace"
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"github.com/hashicorp/vault/sdk/logical"
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)
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// Capabilities is used to fetch the capabilities of the given token on the
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// given path
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func (c *Core) Capabilities(ctx context.Context, token, path string) ([]string, error) {
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if path == "" {
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return nil, &logical.StatusBadRequest{Err: "missing path"}
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}
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if token == "" {
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return nil, &logical.StatusBadRequest{Err: "missing token"}
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}
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te, err := c.tokenStore.Lookup(ctx, token)
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if err != nil {
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return nil, err
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}
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if te == nil {
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return nil, &logical.StatusBadRequest{Err: "invalid token"}
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}
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tokenNS, err := NamespaceByID(ctx, te.NamespaceID, c)
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if err != nil {
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return nil, err
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}
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if tokenNS == nil {
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return nil, namespace.ErrNoNamespace
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}
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var policyCount int
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policyNames := make(map[string][]string)
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policyNames[tokenNS.ID] = te.Policies
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policyCount += len(te.Policies)
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entity, identityPolicies, err := c.fetchEntityAndDerivedPolicies(ctx, tokenNS, te.EntityID, te.NoIdentityPolicies)
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if err != nil {
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return nil, err
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}
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if entity != nil && entity.Disabled {
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c.logger.Warn("permission denied as the entity on the token is disabled")
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return nil, logical.ErrPermissionDenied
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}
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if te.EntityID != "" && entity == nil {
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c.logger.Warn("permission denied as the entity on the token is invalid")
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return nil, logical.ErrPermissionDenied
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}
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for nsID, nsPolicies := range identityPolicies {
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policyNames[nsID] = append(policyNames[nsID], nsPolicies...)
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policyCount += len(nsPolicies)
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}
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// Add capabilities of the inline policy if it's set
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policies := make([]*Policy, 0)
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if te.InlinePolicy != "" {
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inlinePolicy, err := ParseACLPolicy(tokenNS, te.InlinePolicy)
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if err != nil {
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return nil, err
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}
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policies = append(policies, inlinePolicy)
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policyCount++
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}
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if policyCount == 0 {
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return []string{DenyCapability}, nil
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}
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// Construct the corresponding ACL object. ACL construction should be
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// performed on the token's namespace.
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tokenCtx := namespace.ContextWithNamespace(ctx, tokenNS)
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acl, err := c.policyStore.ACL(tokenCtx, entity, policyNames, policies...)
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if err != nil {
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return nil, err
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}
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capabilities := acl.Capabilities(ctx, path)
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sort.Strings(capabilities)
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return capabilities, nil
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}
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