policy: image signature verification support
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
+70
-56
@@ -1,61 +1,75 @@
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linters-settings:
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govet:
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check-shadowing: true
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golint:
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min-confidence: 0
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gocyclo:
|
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min-complexity: 45
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maligned:
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||||
suggest-new: true
|
||||
dupl:
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||||
threshold: 200
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||||
goconst:
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min-len: 2
|
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min-occurrences: 3
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||||
|
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version: "2"
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linters:
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enable-all: true
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default: all
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disable:
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- maligned
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- unparam
|
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- lll
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- gochecknoinits
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- gochecknoglobals
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- funlen
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- godox
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- gocognit
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- whitespace
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- wsl
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- wrapcheck
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- testpackage
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- nlreturn
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- gomnd
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- exhaustivestruct
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- goerr113
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- errorlint
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- nestif
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- godot
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- gofumpt
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||||
- paralleltest
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||||
- tparallel
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- thelper
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||||
- ifshort
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||||
- exhaustruct
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- varnamelen
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- gci
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- cyclop
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||||
- depguard
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- errchkjson
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- inamedparam
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- nonamedreturns
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- musttag
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- ireturn
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- errorlint
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- exhaustruct
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- forcetypeassert
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- cyclop
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# deprecated linters
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- deadcode
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- interfacer
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- scopelint
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- varcheck
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- structcheck
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- golint
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- nosnakecase
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- funlen
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- gochecknoglobals
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||||
- gochecknoinits
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||||
- gocognit
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||||
- godot
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- godox
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- gosmopolitan
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- inamedparam
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#- intrange # disabled while < go1.22
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- ireturn
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||||
- lll
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||||
- musttag
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- nestif
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- nlreturn
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- nonamedreturns
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- noinlineerr
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- paralleltest
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- recvcheck
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- testpackage
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- thelper
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- tparallel
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- unparam
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- varnamelen
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- whitespace
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- wrapcheck
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- wsl
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- wsl_v5
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settings:
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dupl:
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threshold: 200
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goconst:
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min-len: 2
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min-occurrences: 3
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gocyclo:
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||||
min-complexity: 45
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||||
exclusions:
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generated: lax
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presets:
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- comments
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- common-false-positives
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- legacy
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- std-error-handling
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paths:
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- third_party$
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- builtin$
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- examples$
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formatters:
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enable:
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- gofmt
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||||
- goimports
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exclusions:
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generated: lax
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paths:
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- third_party$
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- builtin$
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- examples$
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issues:
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# Maximum issues count per one linter.
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||||
# Set to 0 to disable.
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# Default: 50
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||||
max-issues-per-linter: 0
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||||
# Maximum count of issues with the same text.
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||||
# Set to 0 to disable.
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# Default: 3
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max-same-issues: 0
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+8
-1
@@ -13,7 +13,14 @@ Completed YES
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Tested YES
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## References
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http://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-07
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<https://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-07>
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also known as [RFC6901](https://www.rfc-editor.org/rfc/rfc6901)
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### Note
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The 4.Evaluation part of the previous reference, starting with 'If the currently referenced value is a JSON array, the reference token MUST contain either...' is not implemented.
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That is because our implementation of the JSON pointer only supports explicit references to array elements: the provision in the spec
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to resolve non-existent members as "the last element in the array", using the special trailing character "-".
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+18
@@ -0,0 +1,18 @@
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package jsonpointer
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type pointerError string
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func (e pointerError) Error() string {
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return string(e)
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}
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const (
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// ErrPointer is an error raised by the jsonpointer package
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ErrPointer pointerError = "JSON pointer error"
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// ErrInvalidStart states that a JSON pointer must start with a separator ("/")
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ErrInvalidStart pointerError = `JSON pointer must be empty or start with a "` + pointerSeparator
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// ErrUnsupportedValueType indicates that a value of the wrong type is being set
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ErrUnsupportedValueType pointerError = "only structs, pointers, maps and slices are supported for setting values"
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)
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+307
-303
@@ -33,19 +33,18 @@ import (
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"strconv"
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"strings"
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"github.com/go-openapi/swag"
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"github.com/go-openapi/swag/jsonname"
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)
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const (
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emptyPointer = ``
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pointerSeparator = `/`
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invalidStart = `JSON pointer must be empty or start with a "` + pointerSeparator
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notFound = `Can't find the pointer in the document`
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)
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var jsonPointableType = reflect.TypeOf(new(JSONPointable)).Elem()
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var jsonSetableType = reflect.TypeOf(new(JSONSetable)).Elem()
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var (
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jsonPointableType = reflect.TypeOf(new(JSONPointable)).Elem()
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jsonSetableType = reflect.TypeOf(new(JSONSetable)).Elem()
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)
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// JSONPointable is an interface for structs to implement when they need to customize the
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// json pointer process
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@@ -59,303 +58,30 @@ type JSONSetable interface {
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JSONSet(string, any) error
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}
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// New creates a new json pointer for the given string
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func New(jsonPointerString string) (Pointer, error) {
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var p Pointer
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err := p.parse(jsonPointerString)
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return p, err
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}
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// Pointer the json pointer reprsentation
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// Pointer is a representation of a json pointer
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type Pointer struct {
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referenceTokens []string
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}
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// "Constructor", parses the given string JSON pointer
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func (p *Pointer) parse(jsonPointerString string) error {
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// New creates a new json pointer for the given string
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func New(jsonPointerString string) (Pointer, error) {
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var p Pointer
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err := p.parse(jsonPointerString)
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var err error
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if jsonPointerString != emptyPointer {
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if !strings.HasPrefix(jsonPointerString, pointerSeparator) {
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err = errors.New(invalidStart)
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} else {
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referenceTokens := strings.Split(jsonPointerString, pointerSeparator)
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p.referenceTokens = append(p.referenceTokens, referenceTokens[1:]...)
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}
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}
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return err
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return p, err
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}
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// Get uses the pointer to retrieve a value from a JSON document
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func (p *Pointer) Get(document any) (any, reflect.Kind, error) {
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return p.get(document, swag.DefaultJSONNameProvider)
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return p.get(document, jsonname.DefaultJSONNameProvider)
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}
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// Set uses the pointer to set a value from a JSON document
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func (p *Pointer) Set(document any, value any) (any, error) {
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return document, p.set(document, value, swag.DefaultJSONNameProvider)
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return document, p.set(document, value, jsonname.DefaultJSONNameProvider)
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}
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// GetForToken gets a value for a json pointer token 1 level deep
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func GetForToken(document any, decodedToken string) (any, reflect.Kind, error) {
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return getSingleImpl(document, decodedToken, swag.DefaultJSONNameProvider)
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}
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// SetForToken gets a value for a json pointer token 1 level deep
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func SetForToken(document any, decodedToken string, value any) (any, error) {
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return document, setSingleImpl(document, value, decodedToken, swag.DefaultJSONNameProvider)
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}
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func isNil(input any) bool {
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if input == nil {
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return true
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}
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kind := reflect.TypeOf(input).Kind()
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switch kind { //nolint:exhaustive
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case reflect.Ptr, reflect.Map, reflect.Slice, reflect.Chan:
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return reflect.ValueOf(input).IsNil()
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default:
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return false
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}
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}
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func getSingleImpl(node any, decodedToken string, nameProvider *swag.NameProvider) (any, reflect.Kind, error) {
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rValue := reflect.Indirect(reflect.ValueOf(node))
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kind := rValue.Kind()
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if isNil(node) {
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return nil, kind, fmt.Errorf("nil value has not field %q", decodedToken)
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}
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switch typed := node.(type) {
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case JSONPointable:
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r, err := typed.JSONLookup(decodedToken)
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if err != nil {
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return nil, kind, err
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}
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return r, kind, nil
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case *any: // case of a pointer to interface, that is not resolved by reflect.Indirect
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return getSingleImpl(*typed, decodedToken, nameProvider)
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}
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switch kind { //nolint:exhaustive
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case reflect.Struct:
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nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
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if !ok {
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return nil, kind, fmt.Errorf("object has no field %q", decodedToken)
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}
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fld := rValue.FieldByName(nm)
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return fld.Interface(), kind, nil
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case reflect.Map:
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kv := reflect.ValueOf(decodedToken)
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mv := rValue.MapIndex(kv)
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if mv.IsValid() {
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return mv.Interface(), kind, nil
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}
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return nil, kind, fmt.Errorf("object has no key %q", decodedToken)
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case reflect.Slice:
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tokenIndex, err := strconv.Atoi(decodedToken)
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if err != nil {
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return nil, kind, err
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}
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sLength := rValue.Len()
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if tokenIndex < 0 || tokenIndex >= sLength {
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return nil, kind, fmt.Errorf("index out of bounds array[0,%d] index '%d'", sLength-1, tokenIndex)
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}
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elem := rValue.Index(tokenIndex)
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return elem.Interface(), kind, nil
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default:
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return nil, kind, fmt.Errorf("invalid token reference %q", decodedToken)
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}
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}
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func setSingleImpl(node, data any, decodedToken string, nameProvider *swag.NameProvider) error {
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rValue := reflect.Indirect(reflect.ValueOf(node))
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if ns, ok := node.(JSONSetable); ok { // pointer impl
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return ns.JSONSet(decodedToken, data)
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}
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if rValue.Type().Implements(jsonSetableType) {
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return node.(JSONSetable).JSONSet(decodedToken, data)
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}
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switch rValue.Kind() { //nolint:exhaustive
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case reflect.Struct:
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nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
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if !ok {
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return fmt.Errorf("object has no field %q", decodedToken)
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}
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fld := rValue.FieldByName(nm)
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if fld.IsValid() {
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fld.Set(reflect.ValueOf(data))
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}
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return nil
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case reflect.Map:
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kv := reflect.ValueOf(decodedToken)
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rValue.SetMapIndex(kv, reflect.ValueOf(data))
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return nil
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case reflect.Slice:
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tokenIndex, err := strconv.Atoi(decodedToken)
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if err != nil {
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return err
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}
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sLength := rValue.Len()
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if tokenIndex < 0 || tokenIndex >= sLength {
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return fmt.Errorf("index out of bounds array[0,%d] index '%d'", sLength, tokenIndex)
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}
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elem := rValue.Index(tokenIndex)
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if !elem.CanSet() {
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return fmt.Errorf("can't set slice index %s to %v", decodedToken, data)
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}
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elem.Set(reflect.ValueOf(data))
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return nil
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default:
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return fmt.Errorf("invalid token reference %q", decodedToken)
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}
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}
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func (p *Pointer) get(node any, nameProvider *swag.NameProvider) (any, reflect.Kind, error) {
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|
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if nameProvider == nil {
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nameProvider = swag.DefaultJSONNameProvider
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}
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kind := reflect.Invalid
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// Full document when empty
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if len(p.referenceTokens) == 0 {
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return node, kind, nil
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}
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for _, token := range p.referenceTokens {
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decodedToken := Unescape(token)
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r, knd, err := getSingleImpl(node, decodedToken, nameProvider)
|
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if err != nil {
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return nil, knd, err
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}
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node = r
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}
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rValue := reflect.ValueOf(node)
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kind = rValue.Kind()
|
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return node, kind, nil
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}
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func (p *Pointer) set(node, data any, nameProvider *swag.NameProvider) error {
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knd := reflect.ValueOf(node).Kind()
|
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|
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if knd != reflect.Ptr && knd != reflect.Struct && knd != reflect.Map && knd != reflect.Slice && knd != reflect.Array {
|
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return errors.New("only structs, pointers, maps and slices are supported for setting values")
|
||||
}
|
||||
|
||||
if nameProvider == nil {
|
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nameProvider = swag.DefaultJSONNameProvider
|
||||
}
|
||||
|
||||
// Full document when empty
|
||||
if len(p.referenceTokens) == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
lastI := len(p.referenceTokens) - 1
|
||||
for i, token := range p.referenceTokens {
|
||||
isLastToken := i == lastI
|
||||
decodedToken := Unescape(token)
|
||||
|
||||
if isLastToken {
|
||||
|
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return setSingleImpl(node, data, decodedToken, nameProvider)
|
||||
}
|
||||
|
||||
rValue := reflect.Indirect(reflect.ValueOf(node))
|
||||
kind := rValue.Kind()
|
||||
|
||||
if rValue.Type().Implements(jsonPointableType) {
|
||||
r, err := node.(JSONPointable).JSONLookup(decodedToken)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
fld := reflect.ValueOf(r)
|
||||
if fld.CanAddr() && fld.Kind() != reflect.Interface && fld.Kind() != reflect.Map && fld.Kind() != reflect.Slice && fld.Kind() != reflect.Ptr {
|
||||
node = fld.Addr().Interface()
|
||||
continue
|
||||
}
|
||||
node = r
|
||||
continue
|
||||
}
|
||||
|
||||
switch kind { //nolint:exhaustive
|
||||
case reflect.Struct:
|
||||
nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
|
||||
if !ok {
|
||||
return fmt.Errorf("object has no field %q", decodedToken)
|
||||
}
|
||||
fld := rValue.FieldByName(nm)
|
||||
if fld.CanAddr() && fld.Kind() != reflect.Interface && fld.Kind() != reflect.Map && fld.Kind() != reflect.Slice && fld.Kind() != reflect.Ptr {
|
||||
node = fld.Addr().Interface()
|
||||
continue
|
||||
}
|
||||
node = fld.Interface()
|
||||
|
||||
case reflect.Map:
|
||||
kv := reflect.ValueOf(decodedToken)
|
||||
mv := rValue.MapIndex(kv)
|
||||
|
||||
if !mv.IsValid() {
|
||||
return fmt.Errorf("object has no key %q", decodedToken)
|
||||
}
|
||||
if mv.CanAddr() && mv.Kind() != reflect.Interface && mv.Kind() != reflect.Map && mv.Kind() != reflect.Slice && mv.Kind() != reflect.Ptr {
|
||||
node = mv.Addr().Interface()
|
||||
continue
|
||||
}
|
||||
node = mv.Interface()
|
||||
|
||||
case reflect.Slice:
|
||||
tokenIndex, err := strconv.Atoi(decodedToken)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
sLength := rValue.Len()
|
||||
if tokenIndex < 0 || tokenIndex >= sLength {
|
||||
return fmt.Errorf("index out of bounds array[0,%d] index '%d'", sLength, tokenIndex)
|
||||
}
|
||||
|
||||
elem := rValue.Index(tokenIndex)
|
||||
if elem.CanAddr() && elem.Kind() != reflect.Interface && elem.Kind() != reflect.Map && elem.Kind() != reflect.Slice && elem.Kind() != reflect.Ptr {
|
||||
node = elem.Addr().Interface()
|
||||
continue
|
||||
}
|
||||
node = elem.Interface()
|
||||
|
||||
default:
|
||||
return fmt.Errorf("invalid token reference %q", decodedToken)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// DecodedTokens returns the decoded tokens
|
||||
// DecodedTokens returns the decoded tokens of this JSON pointer
|
||||
func (p *Pointer) DecodedTokens() []string {
|
||||
result := make([]string, 0, len(p.referenceTokens))
|
||||
for _, t := range p.referenceTokens {
|
||||
@@ -377,9 +103,7 @@ func (p *Pointer) String() string {
|
||||
return emptyPointer
|
||||
}
|
||||
|
||||
pointerString := pointerSeparator + strings.Join(p.referenceTokens, pointerSeparator)
|
||||
|
||||
return pointerString
|
||||
return pointerSeparator + strings.Join(p.referenceTokens, pointerSeparator)
|
||||
}
|
||||
|
||||
func (p *Pointer) Offset(document string) (int64, error) {
|
||||
@@ -404,15 +128,294 @@ func (p *Pointer) Offset(document string) (int64, error) {
|
||||
return 0, err
|
||||
}
|
||||
default:
|
||||
return 0, fmt.Errorf("invalid token %#v", tk)
|
||||
return 0, fmt.Errorf("invalid token %#v: %w", tk, ErrPointer)
|
||||
}
|
||||
default:
|
||||
return 0, fmt.Errorf("invalid token %#v", tk)
|
||||
return 0, fmt.Errorf("invalid token %#v: %w", tk, ErrPointer)
|
||||
}
|
||||
}
|
||||
return offset, nil
|
||||
}
|
||||
|
||||
// "Constructor", parses the given string JSON pointer
|
||||
func (p *Pointer) parse(jsonPointerString string) error {
|
||||
var err error
|
||||
|
||||
if jsonPointerString != emptyPointer {
|
||||
if !strings.HasPrefix(jsonPointerString, pointerSeparator) {
|
||||
err = errors.Join(ErrInvalidStart, ErrPointer)
|
||||
} else {
|
||||
referenceTokens := strings.Split(jsonPointerString, pointerSeparator)
|
||||
p.referenceTokens = append(p.referenceTokens, referenceTokens[1:]...)
|
||||
}
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
func (p *Pointer) get(node any, nameProvider *jsonname.NameProvider) (any, reflect.Kind, error) {
|
||||
if nameProvider == nil {
|
||||
nameProvider = jsonname.DefaultJSONNameProvider
|
||||
}
|
||||
|
||||
kind := reflect.Invalid
|
||||
|
||||
// Full document when empty
|
||||
if len(p.referenceTokens) == 0 {
|
||||
return node, kind, nil
|
||||
}
|
||||
|
||||
for _, token := range p.referenceTokens {
|
||||
decodedToken := Unescape(token)
|
||||
|
||||
r, knd, err := getSingleImpl(node, decodedToken, nameProvider)
|
||||
if err != nil {
|
||||
return nil, knd, err
|
||||
}
|
||||
node = r
|
||||
}
|
||||
|
||||
rValue := reflect.ValueOf(node)
|
||||
kind = rValue.Kind()
|
||||
|
||||
return node, kind, nil
|
||||
}
|
||||
|
||||
func (p *Pointer) set(node, data any, nameProvider *jsonname.NameProvider) error {
|
||||
knd := reflect.ValueOf(node).Kind()
|
||||
|
||||
if knd != reflect.Pointer && knd != reflect.Struct && knd != reflect.Map && knd != reflect.Slice && knd != reflect.Array {
|
||||
return errors.Join(
|
||||
ErrUnsupportedValueType,
|
||||
ErrPointer,
|
||||
)
|
||||
}
|
||||
|
||||
if nameProvider == nil {
|
||||
nameProvider = jsonname.DefaultJSONNameProvider
|
||||
}
|
||||
|
||||
// Full document when empty
|
||||
if len(p.referenceTokens) == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
lastI := len(p.referenceTokens) - 1
|
||||
for i, token := range p.referenceTokens {
|
||||
isLastToken := i == lastI
|
||||
decodedToken := Unescape(token)
|
||||
|
||||
if isLastToken {
|
||||
|
||||
return setSingleImpl(node, data, decodedToken, nameProvider)
|
||||
}
|
||||
|
||||
// Check for nil during traversal
|
||||
if isNil(node) {
|
||||
return fmt.Errorf("cannot traverse through nil value at %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
|
||||
rValue := reflect.Indirect(reflect.ValueOf(node))
|
||||
kind := rValue.Kind()
|
||||
|
||||
if rValue.Type().Implements(jsonPointableType) {
|
||||
r, err := node.(JSONPointable).JSONLookup(decodedToken)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
fld := reflect.ValueOf(r)
|
||||
if fld.CanAddr() && fld.Kind() != reflect.Interface && fld.Kind() != reflect.Map && fld.Kind() != reflect.Slice && fld.Kind() != reflect.Pointer {
|
||||
node = fld.Addr().Interface()
|
||||
continue
|
||||
}
|
||||
node = r
|
||||
continue
|
||||
}
|
||||
|
||||
switch kind { //nolint:exhaustive
|
||||
case reflect.Struct:
|
||||
nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
|
||||
if !ok {
|
||||
return fmt.Errorf("object has no field %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
fld := rValue.FieldByName(nm)
|
||||
if fld.CanAddr() && fld.Kind() != reflect.Interface && fld.Kind() != reflect.Map && fld.Kind() != reflect.Slice && fld.Kind() != reflect.Pointer {
|
||||
node = fld.Addr().Interface()
|
||||
continue
|
||||
}
|
||||
node = fld.Interface()
|
||||
|
||||
case reflect.Map:
|
||||
kv := reflect.ValueOf(decodedToken)
|
||||
mv := rValue.MapIndex(kv)
|
||||
|
||||
if !mv.IsValid() {
|
||||
return fmt.Errorf("object has no key %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
if mv.CanAddr() && mv.Kind() != reflect.Interface && mv.Kind() != reflect.Map && mv.Kind() != reflect.Slice && mv.Kind() != reflect.Pointer {
|
||||
node = mv.Addr().Interface()
|
||||
continue
|
||||
}
|
||||
node = mv.Interface()
|
||||
|
||||
case reflect.Slice:
|
||||
tokenIndex, err := strconv.Atoi(decodedToken)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
sLength := rValue.Len()
|
||||
if tokenIndex < 0 || tokenIndex >= sLength {
|
||||
return fmt.Errorf("index out of bounds array[0,%d] index '%d': %w", sLength, tokenIndex, ErrPointer)
|
||||
}
|
||||
|
||||
elem := rValue.Index(tokenIndex)
|
||||
if elem.CanAddr() && elem.Kind() != reflect.Interface && elem.Kind() != reflect.Map && elem.Kind() != reflect.Slice && elem.Kind() != reflect.Pointer {
|
||||
node = elem.Addr().Interface()
|
||||
continue
|
||||
}
|
||||
node = elem.Interface()
|
||||
|
||||
default:
|
||||
return fmt.Errorf("invalid token reference %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func isNil(input any) bool {
|
||||
if input == nil {
|
||||
return true
|
||||
}
|
||||
|
||||
kind := reflect.TypeOf(input).Kind()
|
||||
switch kind { //nolint:exhaustive
|
||||
case reflect.Pointer, reflect.Map, reflect.Slice, reflect.Chan:
|
||||
return reflect.ValueOf(input).IsNil()
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// GetForToken gets a value for a json pointer token 1 level deep
|
||||
func GetForToken(document any, decodedToken string) (any, reflect.Kind, error) {
|
||||
return getSingleImpl(document, decodedToken, jsonname.DefaultJSONNameProvider)
|
||||
}
|
||||
|
||||
// SetForToken gets a value for a json pointer token 1 level deep
|
||||
func SetForToken(document any, decodedToken string, value any) (any, error) {
|
||||
return document, setSingleImpl(document, value, decodedToken, jsonname.DefaultJSONNameProvider)
|
||||
}
|
||||
|
||||
func getSingleImpl(node any, decodedToken string, nameProvider *jsonname.NameProvider) (any, reflect.Kind, error) {
|
||||
rValue := reflect.Indirect(reflect.ValueOf(node))
|
||||
kind := rValue.Kind()
|
||||
if isNil(node) {
|
||||
return nil, kind, fmt.Errorf("nil value has no field %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
|
||||
switch typed := node.(type) {
|
||||
case JSONPointable:
|
||||
r, err := typed.JSONLookup(decodedToken)
|
||||
if err != nil {
|
||||
return nil, kind, err
|
||||
}
|
||||
return r, kind, nil
|
||||
case *any: // case of a pointer to interface, that is not resolved by reflect.Indirect
|
||||
return getSingleImpl(*typed, decodedToken, nameProvider)
|
||||
}
|
||||
|
||||
switch kind { //nolint:exhaustive
|
||||
case reflect.Struct:
|
||||
nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
|
||||
if !ok {
|
||||
return nil, kind, fmt.Errorf("object has no field %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
fld := rValue.FieldByName(nm)
|
||||
return fld.Interface(), kind, nil
|
||||
|
||||
case reflect.Map:
|
||||
kv := reflect.ValueOf(decodedToken)
|
||||
mv := rValue.MapIndex(kv)
|
||||
|
||||
if mv.IsValid() {
|
||||
return mv.Interface(), kind, nil
|
||||
}
|
||||
return nil, kind, fmt.Errorf("object has no key %q: %w", decodedToken, ErrPointer)
|
||||
|
||||
case reflect.Slice:
|
||||
tokenIndex, err := strconv.Atoi(decodedToken)
|
||||
if err != nil {
|
||||
return nil, kind, err
|
||||
}
|
||||
sLength := rValue.Len()
|
||||
if tokenIndex < 0 || tokenIndex >= sLength {
|
||||
return nil, kind, fmt.Errorf("index out of bounds array[0,%d] index '%d': %w", sLength-1, tokenIndex, ErrPointer)
|
||||
}
|
||||
|
||||
elem := rValue.Index(tokenIndex)
|
||||
return elem.Interface(), kind, nil
|
||||
|
||||
default:
|
||||
return nil, kind, fmt.Errorf("invalid token reference %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
}
|
||||
|
||||
func setSingleImpl(node, data any, decodedToken string, nameProvider *jsonname.NameProvider) error {
|
||||
rValue := reflect.Indirect(reflect.ValueOf(node))
|
||||
|
||||
// Check for nil to prevent panic when calling rValue.Type()
|
||||
if isNil(node) {
|
||||
return fmt.Errorf("cannot set field %q on nil value: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
|
||||
if ns, ok := node.(JSONSetable); ok { // pointer impl
|
||||
return ns.JSONSet(decodedToken, data)
|
||||
}
|
||||
|
||||
if rValue.Type().Implements(jsonSetableType) {
|
||||
return node.(JSONSetable).JSONSet(decodedToken, data)
|
||||
}
|
||||
|
||||
switch rValue.Kind() { //nolint:exhaustive
|
||||
case reflect.Struct:
|
||||
nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
|
||||
if !ok {
|
||||
return fmt.Errorf("object has no field %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
fld := rValue.FieldByName(nm)
|
||||
if fld.IsValid() {
|
||||
fld.Set(reflect.ValueOf(data))
|
||||
}
|
||||
return nil
|
||||
|
||||
case reflect.Map:
|
||||
kv := reflect.ValueOf(decodedToken)
|
||||
rValue.SetMapIndex(kv, reflect.ValueOf(data))
|
||||
return nil
|
||||
|
||||
case reflect.Slice:
|
||||
tokenIndex, err := strconv.Atoi(decodedToken)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
sLength := rValue.Len()
|
||||
if tokenIndex < 0 || tokenIndex >= sLength {
|
||||
return fmt.Errorf("index out of bounds array[0,%d] index '%d': %w", sLength, tokenIndex, ErrPointer)
|
||||
}
|
||||
|
||||
elem := rValue.Index(tokenIndex)
|
||||
if !elem.CanSet() {
|
||||
return fmt.Errorf("can't set slice index %s to %v: %w", decodedToken, data, ErrPointer)
|
||||
}
|
||||
elem.Set(reflect.ValueOf(data))
|
||||
return nil
|
||||
|
||||
default:
|
||||
return fmt.Errorf("invalid token reference %q: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
}
|
||||
|
||||
func offsetSingleObject(dec *json.Decoder, decodedToken string) (int64, error) {
|
||||
for dec.More() {
|
||||
offset := dec.InputOffset()
|
||||
@@ -437,16 +440,16 @@ func offsetSingleObject(dec *json.Decoder, decodedToken string) (int64, error) {
|
||||
return offset, nil
|
||||
}
|
||||
default:
|
||||
return 0, fmt.Errorf("invalid token %#v", tk)
|
||||
return 0, fmt.Errorf("invalid token %#v: %w", tk, ErrPointer)
|
||||
}
|
||||
}
|
||||
return 0, fmt.Errorf("token reference %q not found", decodedToken)
|
||||
return 0, fmt.Errorf("token reference %q not found: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
|
||||
func offsetSingleArray(dec *json.Decoder, decodedToken string) (int64, error) {
|
||||
idx, err := strconv.Atoi(decodedToken)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("token reference %q is not a number: %v", decodedToken, err)
|
||||
return 0, fmt.Errorf("token reference %q is not a number: %v: %w", decodedToken, err, ErrPointer)
|
||||
}
|
||||
var i int
|
||||
for i = 0; i < idx && dec.More(); i++ {
|
||||
@@ -470,7 +473,7 @@ func offsetSingleArray(dec *json.Decoder, decodedToken string) (int64, error) {
|
||||
}
|
||||
|
||||
if !dec.More() {
|
||||
return 0, fmt.Errorf("token reference %q not found", decodedToken)
|
||||
return 0, fmt.Errorf("token reference %q not found: %w", decodedToken, ErrPointer)
|
||||
}
|
||||
return dec.InputOffset(), nil
|
||||
}
|
||||
@@ -516,16 +519,17 @@ const (
|
||||
decRefTok1 = `/`
|
||||
)
|
||||
|
||||
var (
|
||||
encRefTokReplacer = strings.NewReplacer(encRefTok1, decRefTok1, encRefTok0, decRefTok0)
|
||||
decRefTokReplacer = strings.NewReplacer(decRefTok1, encRefTok1, decRefTok0, encRefTok0)
|
||||
)
|
||||
|
||||
// Unescape unescapes a json pointer reference token string to the original representation
|
||||
func Unescape(token string) string {
|
||||
step1 := strings.ReplaceAll(token, encRefTok1, decRefTok1)
|
||||
step2 := strings.ReplaceAll(step1, encRefTok0, decRefTok0)
|
||||
return step2
|
||||
return encRefTokReplacer.Replace(token)
|
||||
}
|
||||
|
||||
// Escape escapes a pointer reference token string
|
||||
func Escape(token string) string {
|
||||
step1 := strings.ReplaceAll(token, decRefTok0, encRefTok0)
|
||||
step2 := strings.ReplaceAll(step1, decRefTok1, encRefTok1)
|
||||
return step2
|
||||
return decRefTokReplacer.Replace(token)
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user