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// Copyright 2015 go-swagger maintainers
//
// 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.
package loads
import (
"encoding/json"
"fmt"
"net/url"
"github.com/go-openapi/analysis"
"github.com/go-openapi/spec"
"github.com/go-openapi/swag"
)
// JSONDoc loads a json document from either a file or a remote url
func JSONDoc(path string) (json.RawMessage, error) {
data, err := swag.LoadFromFileOrHTTP(path)
if err != nil {
return nil, err
}
return json.RawMessage(data), nil
}
// DocLoader represents a doc loader type
type DocLoader func(string) (json.RawMessage, error)
// DocMatcher represents a predicate to check if a loader matches
type DocMatcher func(string) bool
var loaders = &loader{Match: func(_ string) bool { return true }, Fn: JSONDoc}
// AddLoader for a document
func AddLoader(predicate DocMatcher, load DocLoader) {
prev := loaders
loaders = &loader{
Match: predicate,
Fn: load,
Next: prev,
}
}
type loader struct {
Fn DocLoader
Match DocMatcher
Next *loader
}
// JSONSpec loads a spec from a json document
func JSONSpec(path string) (*Document, error) {
data, err := JSONDoc(path)
if err != nil {
return nil, err
}
// convert to json
return Analyzed(json.RawMessage(data), "")
}
// Document represents a swagger spec document
type Document struct {
// specAnalyzer
Analyzer *analysis.Spec
spec *spec.Swagger
origSpec *spec.Swagger
schema *spec.Schema
raw json.RawMessage
}
// Spec loads a new spec document
func Spec(path string) (*Document, error) {
specURL, err := url.Parse(path)
if err != nil {
return nil, err
}
for l := loaders.Next; l != nil; l = l.Next {
if loaders.Match(specURL.Path) {
b, err2 := loaders.Fn(path)
if err2 != nil {
return nil, err2
}
return Analyzed(b, "")
}
}
b, err := loaders.Fn(path)
if err != nil {
return nil, err
}
return Analyzed(b, "")
}
var swag20Schema = spec.MustLoadSwagger20Schema()
// Analyzed creates a new analyzed spec document
func Analyzed(data json.RawMessage, version string) (*Document, error) {
if version == "" {
version = "2.0"
}
if version != "2.0" {
return nil, fmt.Errorf("spec version %q is not supported", version)
}
swspec := new(spec.Swagger)
if err := json.Unmarshal(data, swspec); err != nil {
return nil, err
}
origsqspec := new(spec.Swagger)
if err := json.Unmarshal(data, origsqspec); err != nil {
return nil, err
}
d := &Document{
Analyzer: analysis.New(swspec),
schema: swag20Schema,
spec: swspec,
raw: data,
origSpec: origsqspec,
}
return d, nil
}
// Expanded expands the ref fields in the spec document and returns a new spec document
func (d *Document) Expanded() (*Document, error) {
swspec := new(spec.Swagger)
if err := json.Unmarshal(d.raw, swspec); err != nil {
return nil, err
}
if err := spec.ExpandSpec(swspec); err != nil {
return nil, err
}
dd := &Document{
Analyzer: analysis.New(swspec),
spec: swspec,
schema: swag20Schema,
raw: d.raw,
origSpec: d.origSpec,
}
return dd, nil
}
// BasePath the base path for this spec
func (d *Document) BasePath() string {
return d.spec.BasePath
}
// Version returns the version of this spec
func (d *Document) Version() string {
return d.spec.Swagger
}
// Schema returns the swagger 2.0 schema
func (d *Document) Schema() *spec.Schema {
return d.schema
}
// Spec returns the swagger spec object model
func (d *Document) Spec() *spec.Swagger {
return d.spec
}
// Host returns the host for the API
func (d *Document) Host() string {
return d.spec.Host
}
// Raw returns the raw swagger spec as json bytes
func (d *Document) Raw() json.RawMessage {
return d.raw
}
func (d *Document) OrigSpec() *spec.Swagger {
return d.origSpec
}
// ResetDefinitions gives a shallow copy with the models reset
func (d *Document) ResetDefinitions() *Document {
defs := make(map[string]spec.Schema, len(d.origSpec.Definitions))
for k, v := range d.origSpec.Definitions {
defs[k] = v
}
d.spec.Definitions = defs
return d
}
// Pristine creates a new pristine document instance based on the input data
func (d *Document) Pristine() *Document {
dd, _ := Analyzed(d.Raw(), d.Version())
return dd
}
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