diff options
Diffstat (limited to 'vendor/github.com/go-openapi/jsonpointer')
| -rw-r--r-- | vendor/github.com/go-openapi/jsonpointer/LICENSE | 202 | ||||
| -rw-r--r-- | vendor/github.com/go-openapi/jsonpointer/README.md | 15 | ||||
| -rw-r--r-- | vendor/github.com/go-openapi/jsonpointer/pointer.go | 390 |
3 files changed, 607 insertions, 0 deletions
diff --git a/vendor/github.com/go-openapi/jsonpointer/LICENSE b/vendor/github.com/go-openapi/jsonpointer/LICENSE new file mode 100644 index 000000000..d64569567 --- /dev/null +++ b/vendor/github.com/go-openapi/jsonpointer/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/go-openapi/jsonpointer/README.md b/vendor/github.com/go-openapi/jsonpointer/README.md new file mode 100644 index 000000000..813788aff --- /dev/null +++ b/vendor/github.com/go-openapi/jsonpointer/README.md @@ -0,0 +1,15 @@ +# gojsonpointer [](https://travis-ci.org/go-openapi/jsonpointer) [](https://codecov.io/gh/go-openapi/jsonpointer) [](https://slackin.goswagger.io) + +[](https://raw.githubusercontent.com/go-openapi/jsonpointer/master/LICENSE) [](http://godoc.org/github.com/go-openapi/jsonpointer) +An implementation of JSON Pointer - Go language + +## Status +Completed YES + +Tested YES + +## References +http://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-07 + +### Note +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. diff --git a/vendor/github.com/go-openapi/jsonpointer/pointer.go b/vendor/github.com/go-openapi/jsonpointer/pointer.go new file mode 100644 index 000000000..fe2d6ee57 --- /dev/null +++ b/vendor/github.com/go-openapi/jsonpointer/pointer.go @@ -0,0 +1,390 @@ +// Copyright 2013 sigu-399 ( https://github.com/sigu-399 ) +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// author sigu-399 +// author-github https://github.com/sigu-399 +// author-mail sigu.399@gmail.com +// +// repository-name jsonpointer +// repository-desc An implementation of JSON Pointer - Go language +// +// description Main and unique file. +// +// created 25-02-2013 + +package jsonpointer + +import ( + "errors" + "fmt" + "reflect" + "strconv" + "strings" + + "github.com/go-openapi/swag" +) + +const ( + emptyPointer = `` + pointerSeparator = `/` + + invalidStart = `JSON pointer must be empty or start with a "` + pointerSeparator +) + +var jsonPointableType = reflect.TypeOf(new(JSONPointable)).Elem() +var jsonSetableType = reflect.TypeOf(new(JSONSetable)).Elem() + +// JSONPointable is an interface for structs to implement when they need to customize the +// json pointer process +type JSONPointable interface { + JSONLookup(string) (interface{}, error) +} + +// JSONSetable is an interface for structs to implement when they need to customize the +// json pointer process +type JSONSetable interface { + JSONSet(string, interface{}) error +} + +// New creates a new json pointer for the given string +func New(jsonPointerString string) (Pointer, error) { + + var p Pointer + err := p.parse(jsonPointerString) + return p, err + +} + +// Pointer the json pointer reprsentation +type Pointer struct { + referenceTokens []string +} + +// "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.New(invalidStart) + } else { + referenceTokens := strings.Split(jsonPointerString, pointerSeparator) + for _, referenceToken := range referenceTokens[1:] { + p.referenceTokens = append(p.referenceTokens, referenceToken) + } + } + } + + return err +} + +// Get uses the pointer to retrieve a value from a JSON document +func (p *Pointer) Get(document interface{}) (interface{}, reflect.Kind, error) { + return p.get(document, swag.DefaultJSONNameProvider) +} + +// Set uses the pointer to set a value from a JSON document +func (p *Pointer) Set(document interface{}, value interface{}) (interface{}, error) { + return document, p.set(document, value, swag.DefaultJSONNameProvider) +} + +// GetForToken gets a value for a json pointer token 1 level deep +func GetForToken(document interface{}, decodedToken string) (interface{}, reflect.Kind, error) { + return getSingleImpl(document, decodedToken, swag.DefaultJSONNameProvider) +} + +// SetForToken gets a value for a json pointer token 1 level deep +func SetForToken(document interface{}, decodedToken string, value interface{}) (interface{}, error) { + return document, setSingleImpl(document, value, decodedToken, swag.DefaultJSONNameProvider) +} + +func getSingleImpl(node interface{}, decodedToken string, nameProvider *swag.NameProvider) (interface{}, reflect.Kind, error) { + rValue := reflect.Indirect(reflect.ValueOf(node)) + kind := rValue.Kind() + + switch kind { + + case reflect.Struct: + if rValue.Type().Implements(jsonPointableType) { + r, err := node.(JSONPointable).JSONLookup(decodedToken) + if err != nil { + return nil, kind, err + } + return r, kind, nil + } + nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken) + if !ok { + return nil, kind, fmt.Errorf("object has no field %q", decodedToken) + } + fld := rValue.FieldByName(nm) + return fld.Interface(), kind, nil + + case reflect.Map: + kv := reflect.ValueOf(decodedToken) + mv := rValue.MapIndex(kv) + + if mv.IsValid() && !swag.IsZero(mv) { + return mv.Interface(), kind, nil + } + return nil, kind, fmt.Errorf("object has no key %q", decodedToken) + + 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'", sLength-1, tokenIndex) + } + + elem := rValue.Index(tokenIndex) + return elem.Interface(), kind, nil + + default: + return nil, kind, fmt.Errorf("invalid token reference %q", decodedToken) + } + +} + +func setSingleImpl(node, data interface{}, decodedToken string, nameProvider *swag.NameProvider) error { + rValue := reflect.Indirect(reflect.ValueOf(node)) + switch rValue.Kind() { + + case reflect.Struct: + if ns, ok := node.(JSONSetable); ok { // pointer impl + return ns.JSONSet(decodedToken, data) + } + + if rValue.Type().Implements(jsonSetableType) { + return node.(JSONSetable).JSONSet(decodedToken, data) + } + + nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken) + if !ok { + return fmt.Errorf("object has no field %q", decodedToken) + } + 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'", sLength, tokenIndex) + } + + elem := rValue.Index(tokenIndex) + if !elem.CanSet() { + return fmt.Errorf("can't set slice index %s to %v", decodedToken, data) + } + elem.Set(reflect.ValueOf(data)) + return nil + + default: + return fmt.Errorf("invalid token reference %q", decodedToken) + } + +} + +func (p *Pointer) get(node interface{}, nameProvider *swag.NameProvider) (interface{}, reflect.Kind, error) { + + if nameProvider == nil { + nameProvider = swag.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, kind = r, knd + + } + + rValue := reflect.ValueOf(node) + kind = rValue.Kind() + + return node, kind, nil +} + +func (p *Pointer) set(node, data interface{}, nameProvider *swag.NameProvider) error { + knd := reflect.ValueOf(node).Kind() + + if knd != reflect.Ptr && knd != reflect.Struct && knd != reflect.Map && knd != reflect.Slice && knd != reflect.Array { + return fmt.Errorf("only structs, pointers, maps and slices are supported for setting values") + } + + if nameProvider == nil { + 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 { + + return setSingleImpl(node, data, decodedToken, nameProvider) + } + + rValue := reflect.Indirect(reflect.ValueOf(node)) + kind := rValue.Kind() + + switch kind { + + case reflect.Struct: + 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 + } + 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 +func (p *Pointer) DecodedTokens() []string { + result := make([]string, 0, len(p.referenceTokens)) + for _, t := range p.referenceTokens { + result = append(result, Unescape(t)) + } + return result +} + +// IsEmpty returns true if this is an empty json pointer +// this indicates that it points to the root document +func (p *Pointer) IsEmpty() bool { + return len(p.referenceTokens) == 0 +} + +// Pointer to string representation function +func (p *Pointer) String() string { + + if len(p.referenceTokens) == 0 { + return emptyPointer + } + + pointerString := pointerSeparator + strings.Join(p.referenceTokens, pointerSeparator) + + return pointerString +} + +// Specific JSON pointer encoding here +// ~0 => ~ +// ~1 => / +// ... and vice versa + +const ( + encRefTok0 = `~0` + encRefTok1 = `~1` + decRefTok0 = `~` + decRefTok1 = `/` +) + +// Unescape unescapes a json pointer reference token string to the original representation +func Unescape(token string) string { + step1 := strings.Replace(token, encRefTok1, decRefTok1, -1) + step2 := strings.Replace(step1, encRefTok0, decRefTok0, -1) + return step2 +} + +// Escape escapes a pointer reference token string +func Escape(token string) string { + step1 := strings.Replace(token, decRefTok0, encRefTok0, -1) + step2 := strings.Replace(step1, decRefTok1, encRefTok1, -1) + return step2 +} |