Files
libopenapi/datamodel/low/v3/callback.go
2024-08-26 20:42:40 +01:00

87 lines
2.8 KiB
Go

// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
// SPDX-License-Identifier: MIT
package v3
import (
"context"
"crypto/sha256"
"strings"
"github.com/pb33f/libopenapi/orderedmap"
"github.com/pb33f/libopenapi/utils"
"github.com/pb33f/libopenapi/datamodel/low"
"github.com/pb33f/libopenapi/index"
"gopkg.in/yaml.v3"
)
// Callback represents a low-level Callback object for OpenAPI 3+.
//
// A map of possible out-of band callbacks related to the parent operation. Each value in the map is a
// PathItem Object that describes a set of requests that may be initiated by the API provider and the expected
// responses. The key value used to identify the path item object is an expression, evaluated at runtime,
// that identifies a URL to use for the callback operation.
// - https://spec.openapis.org/oas/v3.1.0#callback-object
type Callback struct {
Expression *orderedmap.Map[low.KeyReference[string], low.ValueReference[*PathItem]]
Extensions *orderedmap.Map[low.KeyReference[string], low.ValueReference[*yaml.Node]]
KeyNode *yaml.Node
RootNode *yaml.Node
*low.Reference
low.NodeMap
}
// GetExtensions returns all Callback extensions and satisfies the low.HasExtensions interface.
func (cb *Callback) GetExtensions() *orderedmap.Map[low.KeyReference[string], low.ValueReference[*yaml.Node]] {
return cb.Extensions
}
// GetRootNode returns the root yaml node of the Callback object
func (cb *Callback) GetRootNode() *yaml.Node {
return cb.RootNode
}
// GetKeyNode returns the key yaml node of the Callback object
func (cb *Callback) GetKeyNode() *yaml.Node {
return cb.KeyNode
}
// FindExpression will locate a string expression and return a ValueReference containing the located PathItem
func (cb *Callback) FindExpression(exp string) *low.ValueReference[*PathItem] {
return low.FindItemInOrderedMap(exp, cb.Expression)
}
// Build will extract extensions, expressions and PathItem objects for Callback
func (cb *Callback) Build(ctx context.Context, keyNode, root *yaml.Node, idx *index.SpecIndex) error {
cb.KeyNode = keyNode
root = utils.NodeAlias(root)
cb.RootNode = root
utils.CheckForMergeNodes(root)
cb.Reference = new(low.Reference)
cb.Nodes = low.ExtractNodes(ctx, root)
cb.Extensions = low.ExtractExtensions(root)
low.ExtractExtensionNodes(ctx, cb.Extensions, cb.Nodes)
expressions, err := extractPathItemsMap(ctx, root, idx)
if err != nil {
return err
}
cb.Expression = expressions
for k := range expressions.KeysFromOldest() {
cb.Nodes.Store(k.KeyNode.Line, k.KeyNode)
}
return nil
}
// Hash will return a consistent SHA256 Hash of the Callback object
func (cb *Callback) Hash() [32]byte {
var f []string
for v := range orderedmap.SortAlpha(cb.Expression).ValuesFromOldest() {
f = append(f, low.GenerateHashString(v.Value))
}
f = append(f, low.HashExtensions(cb.Extensions)...)
return sha256.Sum256([]byte(strings.Join(f, "|")))
}