Files
libopenapi/datamodel/low/v3/server.go
2023-09-25 08:59:42 -04:00

100 lines
2.9 KiB
Go

// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
// SPDX-License-Identifier: MIT
package v3
import (
"crypto/sha256"
"sort"
"strings"
"github.com/pb33f/libopenapi/datamodel/low"
"github.com/pb33f/libopenapi/index"
"github.com/pb33f/libopenapi/orderedmap"
"github.com/pb33f/libopenapi/utils"
"gopkg.in/yaml.v3"
)
// Server represents a low-level OpenAPI 3+ Server object.
// - https://spec.openapis.org/oas/v3.1.0#server-object
type Server struct {
URL low.NodeReference[string]
Description low.NodeReference[string]
Variables low.NodeReference[orderedmap.Map[low.KeyReference[string], low.ValueReference[*ServerVariable]]]
Extensions map[low.KeyReference[string]]low.ValueReference[any]
*low.Reference
}
// GetExtensions returns all Paths extensions and satisfies the low.HasExtensions interface.
func (s *Server) GetExtensions() map[low.KeyReference[string]]low.ValueReference[any] {
return s.Extensions
}
// FindVariable attempts to locate a ServerVariable instance using the supplied key.
func (s *Server) FindVariable(serverVar string) *low.ValueReference[*ServerVariable] {
return low.FindItemInOrderedMap[*ServerVariable](serverVar, s.Variables.Value)
}
// Build will extract server variables from the supplied node.
func (s *Server) Build(_, root *yaml.Node, idx *index.SpecIndex) error {
root = utils.NodeAlias(root)
utils.CheckForMergeNodes(root)
s.Reference = new(low.Reference)
s.Extensions = low.ExtractExtensions(root)
kn, vars := utils.FindKeyNode(VariablesLabel, root.Content)
if vars == nil {
return nil
}
variablesMap := orderedmap.New[low.KeyReference[string], low.ValueReference[*ServerVariable]]()
if utils.IsNodeMap(vars) {
var currentNode string
var keyNode *yaml.Node
for i, varNode := range vars.Content {
if i%2 == 0 {
currentNode = varNode.Value
keyNode = varNode
continue
}
variable := ServerVariable{}
variable.Reference = new(low.Reference)
_ = low.BuildModel(varNode, &variable)
variablesMap.Set(
low.KeyReference[string]{
Value: currentNode,
KeyNode: keyNode,
},
low.ValueReference[*ServerVariable]{
ValueNode: varNode,
Value: &variable,
},
)
}
s.Variables = low.NodeReference[orderedmap.Map[low.KeyReference[string], low.ValueReference[*ServerVariable]]]{
KeyNode: kn,
ValueNode: vars,
Value: variablesMap,
}
}
return nil
}
// Hash will return a consistent SHA256 Hash of the Server object
func (s *Server) Hash() [32]byte {
var f []string
keys := make([]string, orderedmap.Len(s.Variables.Value))
z := 0
for pair := orderedmap.First(s.Variables.Value); pair != nil; pair = pair.Next() {
keys[z] = low.GenerateHashString(pair.Value().Value)
z++
}
sort.Strings(keys)
f = append(f, keys...)
if !s.URL.IsEmpty() {
f = append(f, s.URL.Value)
}
if !s.Description.IsEmpty() {
f = append(f, s.Description.Value)
}
return sha256.Sum256([]byte(strings.Join(f, "|")))
}