mirror of https://github.com/k3s-io/k3s
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
291 lines
10 KiB
291 lines
10 KiB
package restful
|
|
|
|
import (
|
|
"errors"
|
|
"os"
|
|
"reflect"
|
|
"sync"
|
|
|
|
"github.com/emicklei/go-restful/log"
|
|
)
|
|
|
|
// Copyright 2013 Ernest Micklei. All rights reserved.
|
|
// Use of this source code is governed by a license
|
|
// that can be found in the LICENSE file.
|
|
|
|
// WebService holds a collection of Route values that bind a Http Method + URL Path to a function.
|
|
type WebService struct {
|
|
rootPath string
|
|
pathExpr *pathExpression // cached compilation of rootPath as RegExp
|
|
routes []Route
|
|
produces []string
|
|
consumes []string
|
|
pathParameters []*Parameter
|
|
filters []FilterFunction
|
|
documentation string
|
|
apiVersion string
|
|
|
|
typeNameHandleFunc TypeNameHandleFunction
|
|
|
|
dynamicRoutes bool
|
|
|
|
// protects 'routes' if dynamic routes are enabled
|
|
routesLock sync.RWMutex
|
|
}
|
|
|
|
func (w *WebService) SetDynamicRoutes(enable bool) {
|
|
w.dynamicRoutes = enable
|
|
}
|
|
|
|
// TypeNameHandleFunction declares functions that can handle translating the name of a sample object
|
|
// into the restful documentation for the service.
|
|
type TypeNameHandleFunction func(sample interface{}) string
|
|
|
|
// TypeNameHandler sets the function that will convert types to strings in the parameter
|
|
// and model definitions. If not set, the web service will invoke
|
|
// reflect.TypeOf(object).String().
|
|
func (w *WebService) TypeNameHandler(handler TypeNameHandleFunction) *WebService {
|
|
w.typeNameHandleFunc = handler
|
|
return w
|
|
}
|
|
|
|
// reflectTypeName is the default TypeNameHandleFunction and for a given object
|
|
// returns the name that Go identifies it with (e.g. "string" or "v1.Object") via
|
|
// the reflection API.
|
|
func reflectTypeName(sample interface{}) string {
|
|
return reflect.TypeOf(sample).String()
|
|
}
|
|
|
|
// compilePathExpression ensures that the path is compiled into a RegEx for those routers that need it.
|
|
func (w *WebService) compilePathExpression() {
|
|
compiled, err := newPathExpression(w.rootPath)
|
|
if err != nil {
|
|
log.Printf("invalid path:%s because:%v", w.rootPath, err)
|
|
os.Exit(1)
|
|
}
|
|
w.pathExpr = compiled
|
|
}
|
|
|
|
// ApiVersion sets the API version for documentation purposes.
|
|
func (w *WebService) ApiVersion(apiVersion string) *WebService {
|
|
w.apiVersion = apiVersion
|
|
return w
|
|
}
|
|
|
|
// Version returns the API version for documentation purposes.
|
|
func (w *WebService) Version() string { return w.apiVersion }
|
|
|
|
// Path specifies the root URL template path of the WebService.
|
|
// All Routes will be relative to this path.
|
|
func (w *WebService) Path(root string) *WebService {
|
|
w.rootPath = root
|
|
if len(w.rootPath) == 0 {
|
|
w.rootPath = "/"
|
|
}
|
|
w.compilePathExpression()
|
|
return w
|
|
}
|
|
|
|
// Param adds a PathParameter to document parameters used in the root path.
|
|
func (w *WebService) Param(parameter *Parameter) *WebService {
|
|
if w.pathParameters == nil {
|
|
w.pathParameters = []*Parameter{}
|
|
}
|
|
w.pathParameters = append(w.pathParameters, parameter)
|
|
return w
|
|
}
|
|
|
|
// PathParameter creates a new Parameter of kind Path for documentation purposes.
|
|
// It is initialized as required with string as its DataType.
|
|
func (w *WebService) PathParameter(name, description string) *Parameter {
|
|
return PathParameter(name, description)
|
|
}
|
|
|
|
// PathParameter creates a new Parameter of kind Path for documentation purposes.
|
|
// It is initialized as required with string as its DataType.
|
|
func PathParameter(name, description string) *Parameter {
|
|
p := &Parameter{&ParameterData{Name: name, Description: description, Required: true, DataType: "string"}}
|
|
p.bePath()
|
|
return p
|
|
}
|
|
|
|
// QueryParameter creates a new Parameter of kind Query for documentation purposes.
|
|
// It is initialized as not required with string as its DataType.
|
|
func (w *WebService) QueryParameter(name, description string) *Parameter {
|
|
return QueryParameter(name, description)
|
|
}
|
|
|
|
// QueryParameter creates a new Parameter of kind Query for documentation purposes.
|
|
// It is initialized as not required with string as its DataType.
|
|
func QueryParameter(name, description string) *Parameter {
|
|
p := &Parameter{&ParameterData{Name: name, Description: description, Required: false, DataType: "string", CollectionFormat: CollectionFormatCSV.String()}}
|
|
p.beQuery()
|
|
return p
|
|
}
|
|
|
|
// BodyParameter creates a new Parameter of kind Body for documentation purposes.
|
|
// It is initialized as required without a DataType.
|
|
func (w *WebService) BodyParameter(name, description string) *Parameter {
|
|
return BodyParameter(name, description)
|
|
}
|
|
|
|
// BodyParameter creates a new Parameter of kind Body for documentation purposes.
|
|
// It is initialized as required without a DataType.
|
|
func BodyParameter(name, description string) *Parameter {
|
|
p := &Parameter{&ParameterData{Name: name, Description: description, Required: true}}
|
|
p.beBody()
|
|
return p
|
|
}
|
|
|
|
// HeaderParameter creates a new Parameter of kind (Http) Header for documentation purposes.
|
|
// It is initialized as not required with string as its DataType.
|
|
func (w *WebService) HeaderParameter(name, description string) *Parameter {
|
|
return HeaderParameter(name, description)
|
|
}
|
|
|
|
// HeaderParameter creates a new Parameter of kind (Http) Header for documentation purposes.
|
|
// It is initialized as not required with string as its DataType.
|
|
func HeaderParameter(name, description string) *Parameter {
|
|
p := &Parameter{&ParameterData{Name: name, Description: description, Required: false, DataType: "string"}}
|
|
p.beHeader()
|
|
return p
|
|
}
|
|
|
|
// FormParameter creates a new Parameter of kind Form (using application/x-www-form-urlencoded) for documentation purposes.
|
|
// It is initialized as required with string as its DataType.
|
|
func (w *WebService) FormParameter(name, description string) *Parameter {
|
|
return FormParameter(name, description)
|
|
}
|
|
|
|
// FormParameter creates a new Parameter of kind Form (using application/x-www-form-urlencoded) for documentation purposes.
|
|
// It is initialized as required with string as its DataType.
|
|
func FormParameter(name, description string) *Parameter {
|
|
p := &Parameter{&ParameterData{Name: name, Description: description, Required: false, DataType: "string"}}
|
|
p.beForm()
|
|
return p
|
|
}
|
|
|
|
// Route creates a new Route using the RouteBuilder and add to the ordered list of Routes.
|
|
func (w *WebService) Route(builder *RouteBuilder) *WebService {
|
|
w.routesLock.Lock()
|
|
defer w.routesLock.Unlock()
|
|
builder.copyDefaults(w.produces, w.consumes)
|
|
w.routes = append(w.routes, builder.Build())
|
|
return w
|
|
}
|
|
|
|
// RemoveRoute removes the specified route, looks for something that matches 'path' and 'method'
|
|
func (w *WebService) RemoveRoute(path, method string) error {
|
|
if !w.dynamicRoutes {
|
|
return errors.New("dynamic routes are not enabled.")
|
|
}
|
|
w.routesLock.Lock()
|
|
defer w.routesLock.Unlock()
|
|
newRoutes := make([]Route, (len(w.routes) - 1))
|
|
current := 0
|
|
for ix := range w.routes {
|
|
if w.routes[ix].Method == method && w.routes[ix].Path == path {
|
|
continue
|
|
}
|
|
newRoutes[current] = w.routes[ix]
|
|
current = current + 1
|
|
}
|
|
w.routes = newRoutes
|
|
return nil
|
|
}
|
|
|
|
// Method creates a new RouteBuilder and initialize its http method
|
|
func (w *WebService) Method(httpMethod string) *RouteBuilder {
|
|
return new(RouteBuilder).typeNameHandler(w.typeNameHandleFunc).servicePath(w.rootPath).Method(httpMethod)
|
|
}
|
|
|
|
// Produces specifies that this WebService can produce one or more MIME types.
|
|
// Http requests must have one of these values set for the Accept header.
|
|
func (w *WebService) Produces(contentTypes ...string) *WebService {
|
|
w.produces = contentTypes
|
|
return w
|
|
}
|
|
|
|
// Consumes specifies that this WebService can consume one or more MIME types.
|
|
// Http requests must have one of these values set for the Content-Type header.
|
|
func (w *WebService) Consumes(accepts ...string) *WebService {
|
|
w.consumes = accepts
|
|
return w
|
|
}
|
|
|
|
// Routes returns the Routes associated with this WebService
|
|
func (w *WebService) Routes() []Route {
|
|
if !w.dynamicRoutes {
|
|
return w.routes
|
|
}
|
|
// Make a copy of the array to prevent concurrency problems
|
|
w.routesLock.RLock()
|
|
defer w.routesLock.RUnlock()
|
|
result := make([]Route, len(w.routes))
|
|
for ix := range w.routes {
|
|
result[ix] = w.routes[ix]
|
|
}
|
|
return result
|
|
}
|
|
|
|
// RootPath returns the RootPath associated with this WebService. Default "/"
|
|
func (w *WebService) RootPath() string {
|
|
return w.rootPath
|
|
}
|
|
|
|
// PathParameters return the path parameter names for (shared among its Routes)
|
|
func (w *WebService) PathParameters() []*Parameter {
|
|
return w.pathParameters
|
|
}
|
|
|
|
// Filter adds a filter function to the chain of filters applicable to all its Routes
|
|
func (w *WebService) Filter(filter FilterFunction) *WebService {
|
|
w.filters = append(w.filters, filter)
|
|
return w
|
|
}
|
|
|
|
// Doc is used to set the documentation of this service.
|
|
func (w *WebService) Doc(plainText string) *WebService {
|
|
w.documentation = plainText
|
|
return w
|
|
}
|
|
|
|
// Documentation returns it.
|
|
func (w *WebService) Documentation() string {
|
|
return w.documentation
|
|
}
|
|
|
|
/*
|
|
Convenience methods
|
|
*/
|
|
|
|
// HEAD is a shortcut for .Method("HEAD").Path(subPath)
|
|
func (w *WebService) HEAD(subPath string) *RouteBuilder {
|
|
return new(RouteBuilder).typeNameHandler(w.typeNameHandleFunc).servicePath(w.rootPath).Method("HEAD").Path(subPath)
|
|
}
|
|
|
|
// GET is a shortcut for .Method("GET").Path(subPath)
|
|
func (w *WebService) GET(subPath string) *RouteBuilder {
|
|
return new(RouteBuilder).typeNameHandler(w.typeNameHandleFunc).servicePath(w.rootPath).Method("GET").Path(subPath)
|
|
}
|
|
|
|
// POST is a shortcut for .Method("POST").Path(subPath)
|
|
func (w *WebService) POST(subPath string) *RouteBuilder {
|
|
return new(RouteBuilder).typeNameHandler(w.typeNameHandleFunc).servicePath(w.rootPath).Method("POST").Path(subPath)
|
|
}
|
|
|
|
// PUT is a shortcut for .Method("PUT").Path(subPath)
|
|
func (w *WebService) PUT(subPath string) *RouteBuilder {
|
|
return new(RouteBuilder).typeNameHandler(w.typeNameHandleFunc).servicePath(w.rootPath).Method("PUT").Path(subPath)
|
|
}
|
|
|
|
// PATCH is a shortcut for .Method("PATCH").Path(subPath)
|
|
func (w *WebService) PATCH(subPath string) *RouteBuilder {
|
|
return new(RouteBuilder).typeNameHandler(w.typeNameHandleFunc).servicePath(w.rootPath).Method("PATCH").Path(subPath)
|
|
}
|
|
|
|
// DELETE is a shortcut for .Method("DELETE").Path(subPath)
|
|
func (w *WebService) DELETE(subPath string) *RouteBuilder {
|
|
return new(RouteBuilder).typeNameHandler(w.typeNameHandleFunc).servicePath(w.rootPath).Method("DELETE").Path(subPath)
|
|
}
|