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|
package http
import (
"encoding/json"
"fmt"
"github.com/spiral/roadrunner"
"io/ioutil"
"net/http"
"net/url"
"strings"
)
const (
defaultMaxMemory = 32 << 20 // 32 MB
contentNone = iota + 900
contentStream
contentMultipart
contentFormData
)
// Request maps net/http requests to PSR7 compatible structure and managed state of temporary uploaded files.
type Request struct {
// Protocol includes HTTP protocol version.
Protocol string `json:"protocol"`
// Method contains name of HTTP method used for the request.
Method string `json:"method"`
// Uri contains full request Uri with scheme and query.
Uri string `json:"uri"`
// Headers contains list of request headers.
Headers http.Header `json:"headers"`
// Cookies contains list of request cookies.
Cookies map[string]string `json:"cookies"`
// RawQuery contains non parsed query string (to be parsed on php end).
RawQuery string `json:"rawQuery"`
// Parsed indicates that request body has been parsed on RR end.
Parsed bool `json:"parsed"`
// Uploads contains list of uploaded files, their names, sized and associations with temporary files.
Uploads *Uploads `json:"uploads"`
// request body can be parsedData or []byte
body interface{}
}
// NewRequest creates new PSR7 compatible request using net/http request.
func NewRequest(r *http.Request, cfg *UploadsConfig) (req *Request, err error) {
req = &Request{
Protocol: r.Proto,
Method: r.Method,
Uri: uri(r),
Headers: r.Header,
Cookies: make(map[string]string),
RawQuery: r.URL.RawQuery,
}
for _, c := range r.Cookies() {
if v, err := url.QueryUnescape(c.Value); err == nil {
req.Cookies[c.Name] = v
}
}
switch req.contentType() {
case contentNone:
return req, nil
case contentStream:
req.body, err = ioutil.ReadAll(r.Body)
return req, err
case contentMultipart:
if err = r.ParseMultipartForm(defaultMaxMemory); err != nil {
return nil, err
}
req.Uploads = parseUploads(r, cfg)
fallthrough
case contentFormData:
if err = r.ParseForm(); err != nil {
return nil, err
}
req.body = parseData(r)
}
req.Parsed = true
return req, nil
}
// Open moves all uploaded files to temporary directory so it can be given to php later.
func (r *Request) Open() error {
if r.Uploads == nil {
return nil
}
return r.Uploads.Open()
}
// Close clears all temp file uploads
func (r *Request) Close() {
if r.Uploads == nil {
return
}
r.Uploads.Clear()
}
// Payload request marshaled RoadRunner payload based on PSR7 data. Default encode method is JSON. Make sure to open
// files prior to calling this method.
func (r *Request) Payload() (p *roadrunner.Payload, err error) {
p = &roadrunner.Payload{}
if p.Context, err = json.Marshal(r); err != nil {
return nil, err
}
if r.Parsed {
if p.Body, err = json.Marshal(r.body); err != nil {
return nil, err
}
} else if r.body != nil {
p.Body = r.body.([]byte)
}
return p, nil
}
// contentType returns the payload content type.
func (r *Request) contentType() int {
if r.Method != "POST" && r.Method != "PUT" && r.Method != "PATCH" {
return contentNone
}
ct := r.Headers.Get("content-type")
if ct == "application/x-www-form-urlencoded" {
return contentFormData
}
if strings.Contains(ct, "multipart/form-data") {
return contentMultipart
}
return contentStream
}
// uri fetches full uri from request in a form of string (including https scheme if TLS connection is enabled).
func uri(r *http.Request) string {
if r.TLS != nil {
return fmt.Sprintf("https://%s%s", r.Host, r.URL.String())
}
return fmt.Sprintf("http://%s%s", r.Host, r.URL.String())
}
|
