113 lines
3.7 KiB
Go
113 lines
3.7 KiB
Go
package restful
|
|
|
|
// 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.
|
|
|
|
import (
|
|
"compress/zlib"
|
|
"net/http"
|
|
)
|
|
|
|
var defaultRequestContentType string
|
|
|
|
// Request is a wrapper for a http Request that provides convenience methods
|
|
type Request struct {
|
|
Request *http.Request
|
|
pathParameters map[string]string
|
|
attributes map[string]interface{} // for storing request-scoped values
|
|
selectedRoutePath string // root path + route path that matched the request, e.g. /meetings/{id}/attendees
|
|
}
|
|
|
|
func NewRequest(httpRequest *http.Request) *Request {
|
|
return &Request{
|
|
Request: httpRequest,
|
|
pathParameters: map[string]string{},
|
|
attributes: map[string]interface{}{},
|
|
} // empty parameters, attributes
|
|
}
|
|
|
|
// If ContentType is missing or */* is given then fall back to this type, otherwise
|
|
// a "Unable to unmarshal content of type:" response is returned.
|
|
// Valid values are restful.MIME_JSON and restful.MIME_XML
|
|
// Example:
|
|
// restful.DefaultRequestContentType(restful.MIME_JSON)
|
|
func DefaultRequestContentType(mime string) {
|
|
defaultRequestContentType = mime
|
|
}
|
|
|
|
// PathParameter accesses the Path parameter value by its name
|
|
func (r *Request) PathParameter(name string) string {
|
|
return r.pathParameters[name]
|
|
}
|
|
|
|
// PathParameters accesses the Path parameter values
|
|
func (r *Request) PathParameters() map[string]string {
|
|
return r.pathParameters
|
|
}
|
|
|
|
// QueryParameter returns the (first) Query parameter value by its name
|
|
func (r *Request) QueryParameter(name string) string {
|
|
return r.Request.FormValue(name)
|
|
}
|
|
|
|
// BodyParameter parses the body of the request (once for typically a POST or a PUT) and returns the value of the given name or an error.
|
|
func (r *Request) BodyParameter(name string) (string, error) {
|
|
err := r.Request.ParseForm()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return r.Request.PostFormValue(name), nil
|
|
}
|
|
|
|
// HeaderParameter returns the HTTP Header value of a Header name or empty if missing
|
|
func (r *Request) HeaderParameter(name string) string {
|
|
return r.Request.Header.Get(name)
|
|
}
|
|
|
|
// ReadEntity checks the Accept header and reads the content into the entityPointer.
|
|
func (r *Request) ReadEntity(entityPointer interface{}) (err error) {
|
|
contentType := r.Request.Header.Get(HEADER_ContentType)
|
|
contentEncoding := r.Request.Header.Get(HEADER_ContentEncoding)
|
|
|
|
// check if the request body needs decompression
|
|
if ENCODING_GZIP == contentEncoding {
|
|
gzipReader := currentCompressorProvider.AcquireGzipReader()
|
|
defer currentCompressorProvider.ReleaseGzipReader(gzipReader)
|
|
gzipReader.Reset(r.Request.Body)
|
|
r.Request.Body = gzipReader
|
|
} else if ENCODING_DEFLATE == contentEncoding {
|
|
zlibReader, err := zlib.NewReader(r.Request.Body)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
r.Request.Body = zlibReader
|
|
}
|
|
|
|
// lookup the EntityReader, use defaultRequestContentType if needed and provided
|
|
entityReader, ok := entityAccessRegistry.accessorAt(contentType)
|
|
if !ok {
|
|
if len(defaultRequestContentType) != 0 {
|
|
entityReader, ok = entityAccessRegistry.accessorAt(defaultRequestContentType)
|
|
}
|
|
if !ok {
|
|
return NewError(http.StatusBadRequest, "Unable to unmarshal content of type:"+contentType)
|
|
}
|
|
}
|
|
return entityReader.Read(r, entityPointer)
|
|
}
|
|
|
|
// SetAttribute adds or replaces the attribute with the given value.
|
|
func (r *Request) SetAttribute(name string, value interface{}) {
|
|
r.attributes[name] = value
|
|
}
|
|
|
|
// Attribute returns the value associated to the given name. Returns nil if absent.
|
|
func (r Request) Attribute(name string) interface{} {
|
|
return r.attributes[name]
|
|
}
|
|
|
|
// SelectedRoutePath root path + route path that matched the request, e.g. /meetings/{id}/attendees
|
|
func (r Request) SelectedRoutePath() string {
|
|
return r.selectedRoutePath
|
|
}
|