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https://github.com/LukeHagar/libopenapi.git
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8717b3cd33
Every `Build()` method now requires a `context.Context`. This is so the rolodex knows where to resolve from when locating relative links. Without knowing where we are, there is no way to resolve anything. This new mechanism allows the model to recurse across as many files as required to locate references, without loosing track of where we are in the process. Signed-off-by: quobix <dave@quobix.com>
79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
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// SPDX-License-Identifier: MIT
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package v3
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import (
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"context"
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"crypto/sha256"
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"fmt"
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"github.com/pb33f/libopenapi/datamodel/low"
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"github.com/pb33f/libopenapi/index"
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"github.com/pb33f/libopenapi/utils"
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"gopkg.in/yaml.v3"
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"strings"
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)
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// Encoding represents a low-level OpenAPI 3+ Encoding object
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// - https://spec.openapis.org/oas/v3.1.0#encoding-object
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type Encoding struct {
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ContentType low.NodeReference[string]
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Headers low.NodeReference[map[low.KeyReference[string]]low.ValueReference[*Header]]
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Style low.NodeReference[string]
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Explode low.NodeReference[bool]
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AllowReserved low.NodeReference[bool]
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*low.Reference
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}
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// FindHeader attempts to locate a Header with the supplied name
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func (en *Encoding) FindHeader(hType string) *low.ValueReference[*Header] {
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return low.FindItemInMap[*Header](hType, en.Headers.Value)
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}
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// Hash will return a consistent SHA256 Hash of the Encoding object
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func (en *Encoding) Hash() [32]byte {
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var f []string
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if en.ContentType.Value != "" {
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f = append(f, en.ContentType.Value)
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}
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if len(en.Headers.Value) > 0 {
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l := make([]string, len(en.Headers.Value))
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keys := make(map[string]low.ValueReference[*Header])
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z := 0
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for k := range en.Headers.Value {
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keys[k.Value] = en.Headers.Value[k]
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l[z] = k.Value
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z++
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}
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for k := range en.Headers.Value {
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f = append(f, fmt.Sprintf("%s-%x", k.Value, en.Headers.Value[k].Value.Hash()))
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}
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}
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if en.Style.Value != "" {
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f = append(f, en.Style.Value)
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}
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f = append(f, fmt.Sprint(sha256.Sum256([]byte(fmt.Sprint(en.Explode.Value)))))
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f = append(f, fmt.Sprint(sha256.Sum256([]byte(fmt.Sprint(en.AllowReserved.Value)))))
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return sha256.Sum256([]byte(strings.Join(f, "|")))
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}
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// Build will extract all Header objects from supplied node.
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func (en *Encoding) Build(ctx context.Context, _, root *yaml.Node, idx *index.SpecIndex) error {
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root = utils.NodeAlias(root)
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utils.CheckForMergeNodes(root)
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en.Reference = new(low.Reference)
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headers, hL, hN, err := low.ExtractMap[*Header](ctx, HeadersLabel, root, idx)
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if err != nil {
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return err
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}
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if headers != nil {
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en.Headers = low.NodeReference[map[low.KeyReference[string]]low.ValueReference[*Header]]{
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Value: headers,
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KeyNode: hL,
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ValueNode: hN,
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}
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}
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return nil
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}
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