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@ -8,9 +8,14 @@ import (
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"fmt"
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"io"
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"log"
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"maps"
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"mime/multipart"
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"net"
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"net/http"
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"net/textproto"
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"runtime/debug"
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"strconv"
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"strings"
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"sync"
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"time"
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)
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@ -22,9 +27,86 @@ import (
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// Note - Response includes a response body available from the Body method, it
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// is the caller's responsibility to close this.
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func (app *App) CallLocalAPI(timeoutMillis int, method, endpoint string, body InputStream) (LocalAPIResponse, error) {
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return app.callLocalAPI(timeoutMillis, method, endpoint, nil, adaptInputStream(body))
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}
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// CallLocalAPIMultipart is like CallLocalAPI, but instead of uploading a
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// generic body, it uploads a multipart/form-encoded body consisting of the
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// supplied parts.
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func (app *App) CallLocalAPIMultipart(timeoutMillis int, method, endpoint string, parts FileParts) (LocalAPIResponse, error) {
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defer func() {
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if p := recover(); p != nil {
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log.Printf("panic in CallLocalAPIMultipart %s: %s", p, debug.Stack())
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panic(p)
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}
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}()
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r, w := io.Pipe()
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defer r.Close()
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mw := multipart.NewWriter(w)
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header := make(http.Header)
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header.Set("Content-Type", mw.FormDataContentType())
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resultCh := make(chan interface{})
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go func() {
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resp, err := app.callLocalAPI(timeoutMillis, method, endpoint, header, r)
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if err != nil {
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resultCh <- err
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} else {
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resultCh <- resp
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}
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}()
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go func() {
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for i := int32(0); i < parts.Len(); i++ {
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part := parts.Get(i)
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contentType := "application/octet-stream"
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if part.ContentType != "" {
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contentType = part.ContentType
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}
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header := make(textproto.MIMEHeader, 3)
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header.Set("Content-Disposition",
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fmt.Sprintf(`form-data; name="%s"; filename="%s"`,
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escapeQuotes("file"), escapeQuotes(part.Filename)))
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header.Set("Content-Type", contentType)
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header.Set("Content-Length", strconv.FormatInt(part.ContentLength, 10))
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p, err := mw.CreatePart(header)
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if err != nil {
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resultCh <- fmt.Errorf("CreatePart: %w", err)
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return
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}
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_, err = io.Copy(p, adaptInputStream(part.Body))
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if err != nil {
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resultCh <- fmt.Errorf("Copy: %w", err)
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return
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}
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}
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err := mw.Close()
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if err != nil {
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resultCh <- fmt.Errorf("Close MultipartWriter: %w", err)
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}
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err = w.Close()
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if err != nil {
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resultCh <- fmt.Errorf("Close Writer: %w", err)
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}
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}()
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result := <-resultCh
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switch t := result.(type) {
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case LocalAPIResponse:
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return t, nil
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case error:
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return nil, t
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default:
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panic("unexpected result type, this shouldn't happen")
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}
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}
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func (app *App) callLocalAPI(timeoutMillis int, method, endpoint string, header http.Header, body io.ReadCloser) (LocalAPIResponse, error) {
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defer func() {
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if p := recover(); p != nil {
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log.Printf("panic in CallLocalAPI %s: %s", p, debug.Stack())
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log.Printf("panic in callLocalAPI %s: %s", p, debug.Stack())
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panic(p)
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}
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}()
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@ -38,7 +120,8 @@ func (app *App) CallLocalAPI(timeoutMillis int, method, endpoint string, body In
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defer body.Close()
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}
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req, err := http.NewRequestWithContext(ctx, method, endpoint, adaptInputStream(body))
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req, err := http.NewRequestWithContext(ctx, method, endpoint, body)
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maps.Copy(req.Header, header)
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if err != nil {
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return nil, fmt.Errorf("error creating new request for %s: %w", endpoint, err)
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}
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@ -63,9 +146,9 @@ func (app *App) CallLocalAPI(timeoutMillis int, method, endpoint string, body In
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}
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}()
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defer pipeWriter.Close()
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app.localAPIHandler.ServeHTTP(resp, req)
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resp.Flush()
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pipeWriter.Close()
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}()
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select {
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@ -127,7 +210,7 @@ func (r *Response) Flush() {
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})
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}
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func adaptInputStream(in InputStream) io.Reader {
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func adaptInputStream(in InputStream) io.ReadCloser {
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if in == nil {
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return nil
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}
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@ -147,3 +230,10 @@ func adaptInputStream(in InputStream) io.Reader {
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}()
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return r
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}
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// Below taken from Go stdlib
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var quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
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func escapeQuotes(s string) string {
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return quoteEscaper.Replace(s)
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}
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Percy Wegmann
8 months ago
committed by