Files
libopenapi/datamodel/low/v3/response.go
Dave Shanley b06ef4bcc9 Wiring up responses into what-changed feature
Building tests and hashing functions.
2022-11-18 11:00:34 -05:00

113 lines
3.5 KiB
Go

// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
// SPDX-License-Identifier: MIT
package v3
import (
"crypto/sha256"
"fmt"
"github.com/pb33f/libopenapi/datamodel/low"
"github.com/pb33f/libopenapi/index"
"gopkg.in/yaml.v3"
"strings"
)
// Response represents a high-level OpenAPI 3+ Response object that is backed by a low-level one.
//
// Describes a single response from an API Operation, including design-time, static links to
// operations based on the response.
// - https://spec.openapis.org/oas/v3.1.0#response-object
type Response struct {
Description low.NodeReference[string]
Headers low.NodeReference[map[low.KeyReference[string]]low.ValueReference[*Header]]
Content low.NodeReference[map[low.KeyReference[string]]low.ValueReference[*MediaType]]
Extensions map[low.KeyReference[string]]low.ValueReference[any]
Links low.NodeReference[map[low.KeyReference[string]]low.ValueReference[*Link]]
}
// FindExtension will attempt to locate an extension using the supplied key
func (r *Response) FindExtension(ext string) *low.ValueReference[any] {
return low.FindItemInMap[any](ext, r.Extensions)
}
// FindContent will attempt to locate a MediaType instance using the supplied key.
func (r *Response) FindContent(cType string) *low.ValueReference[*MediaType] {
return low.FindItemInMap[*MediaType](cType, r.Content.Value)
}
// FindHeader will attempt to locate a Header instance using the supplied key.
func (r *Response) FindHeader(hType string) *low.ValueReference[*Header] {
return low.FindItemInMap[*Header](hType, r.Headers.Value)
}
// FindLink will attempt to locate a Link instance using the supplied key.
func (r *Response) FindLink(hType string) *low.ValueReference[*Link] {
return low.FindItemInMap[*Link](hType, r.Links.Value)
}
// Build will extract headers, extensions, content and links from node.
func (r *Response) Build(root *yaml.Node, idx *index.SpecIndex) error {
r.Extensions = low.ExtractExtensions(root)
//extract headers
headers, lN, kN, err := low.ExtractMap[*Header](HeadersLabel, root, idx)
if err != nil {
return err
}
if headers != nil {
r.Headers = low.NodeReference[map[low.KeyReference[string]]low.ValueReference[*Header]]{
Value: headers,
KeyNode: lN,
ValueNode: kN,
}
}
con, clN, cN, cErr := low.ExtractMap[*MediaType](ContentLabel, root, idx)
if cErr != nil {
return cErr
}
if con != nil {
r.Content = low.NodeReference[map[low.KeyReference[string]]low.ValueReference[*MediaType]]{
Value: con,
KeyNode: clN,
ValueNode: cN,
}
}
// handle links if set
links, linkLabel, linkValue, lErr := low.ExtractMap[*Link](LinksLabel, root, idx)
if lErr != nil {
return lErr
}
if links != nil {
r.Links = low.NodeReference[map[low.KeyReference[string]]low.ValueReference[*Link]]{
Value: links,
KeyNode: linkLabel,
ValueNode: linkValue,
}
}
return nil
}
// Hash will return a consistent SHA256 Hash of the Response object
func (r *Response) Hash() [32]byte {
var f []string
if r.Description.Value != "" {
f = append(f, r.Description.Value)
}
for k := range r.Headers.Value {
f = append(f, low.GenerateHashString(r.Headers.Value[k].Value))
}
for k := range r.Content.Value {
f = append(f, low.GenerateHashString(r.Content.Value[k].Value))
}
for k := range r.Links.Value {
f = append(f, low.GenerateHashString(r.Links.Value[k].Value))
}
for k := range r.Extensions {
f = append(f, fmt.Sprintf("%s-%x", k.Value,
sha256.Sum256([]byte(fmt.Sprint(r.Extensions[k].Value)))))
}
return sha256.Sum256([]byte(strings.Join(f, "|")))
}