mirror of
https://github.com/diamondburned/arikawa.git
synced 2024-11-01 04:24:19 +00:00
105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
package sendpart
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"mime/multipart"
|
|
"net/url"
|
|
"strconv"
|
|
|
|
"github.com/diamondburned/arikawa/v3/utils/httputil"
|
|
"github.com/diamondburned/arikawa/v3/utils/json"
|
|
)
|
|
|
|
// File represents a file to be uploaded to Discord.
|
|
type File struct {
|
|
Name string
|
|
Reader io.Reader
|
|
}
|
|
|
|
// AttachmentURI returns the file encoded using the attachment URI required for
|
|
// embedding an attachment image.
|
|
func (f File) AttachmentURI() string {
|
|
u := url.URL{
|
|
Scheme: "attachment",
|
|
Path: f.Name,
|
|
}
|
|
return u.String()
|
|
}
|
|
|
|
// DataMultipartWriter is a MultipartWriter that also contains data that's
|
|
// JSON-marshalable.
|
|
type DataMultipartWriter interface {
|
|
// NeedsMultipart returns true if the data interface must be sent using
|
|
// multipart form.
|
|
NeedsMultipart() bool
|
|
|
|
httputil.MultipartWriter
|
|
}
|
|
|
|
// Do sends an HTTP request using client to the given URL and unmarshals the
|
|
// body into v if it's not nil. It will only send using multipart if needed.
|
|
func Do(c *httputil.Client, method string, data DataMultipartWriter, v interface{}, url string) error {
|
|
if !data.NeedsMultipart() {
|
|
// No files, so no need for streaming.
|
|
return c.RequestJSON(v, method, url, httputil.WithJSONBody(data))
|
|
}
|
|
|
|
resp, err := c.MeanwhileMultipart(data, method, url)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
var body = resp.GetBody()
|
|
defer body.Close()
|
|
|
|
if v == nil {
|
|
return nil
|
|
}
|
|
|
|
return json.DecodeStream(body, v)
|
|
}
|
|
|
|
// PATCH sends a PATCH request using client to the given URL and unmarshals the
|
|
// body into v if it's not nil. It will only send using multipart if needed.
|
|
// It is equivalent to calling Do with "POST"
|
|
func POST(c *httputil.Client, data DataMultipartWriter, v interface{}, url string) error {
|
|
return Do(c, "POST", data, v, url)
|
|
}
|
|
|
|
// PATCH sends a PATCH request using client to the given URL and unmarshals the
|
|
// body into v if it's not nil. It will only send using multipart if needed.
|
|
// It is equivalent to calling Do with "PATCH"
|
|
func PATCH(c *httputil.Client, data DataMultipartWriter, v interface{}, url string) error {
|
|
return Do(c, "PATCH", data, v, url)
|
|
}
|
|
|
|
// Write writes the item into payload_json and the list of files into the
|
|
// multipart writer. Write does not close the body.
|
|
func Write(body *multipart.Writer, item interface{}, files []File) error {
|
|
// Encode the JSON body first
|
|
w, err := body.CreateFormField("payload_json")
|
|
if err != nil {
|
|
return fmt.Errorf("failed to create bodypart for JSON: %w", err)
|
|
}
|
|
|
|
if err := json.EncodeStream(w, item); err != nil {
|
|
return fmt.Errorf("failed to encode JSON: %w", err)
|
|
}
|
|
|
|
for i, file := range files {
|
|
num := strconv.Itoa(i)
|
|
|
|
w, err := body.CreateFormFile("file"+num, file.Name)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to create bodypart for %q: %w", num, err)
|
|
}
|
|
|
|
if _, err := io.Copy(w, file.Reader); err != nil {
|
|
return fmt.Errorf("failed to write for file %q: %w", num, err)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|