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serve.go
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serve.go
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package send
import (
"fmt"
"io"
"net/http"
"time"
"github.com/forestnode-io/oneshot/v2/pkg/events"
"github.com/forestnode-io/oneshot/v2/pkg/output"
)
func (c *Cmd) ServeHTTP(w http.ResponseWriter, r *http.Request) {
var (
ctx = c.Cobra().Context()
cmd = c.cobraCommand
config = c.config.Subcommands.Send
header = http.Header(config.Header.Inflate())
doneReadingBody = make(chan struct{})
)
events.Raise(ctx, output.NewHTTPRequest(r))
go func() {
// Read body into the void since this will trigger a
// a buffer on the body which can then be inlcuded in the
// json report
defer close(doneReadingBody)
defer r.Body.Close()
_, _ = io.Copy(io.Discard, r.Body)
}()
rts, err := c.rtc.NewReaderTransferSession(ctx)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
events.Raise(ctx, events.ClientDisconnected{Err: err})
return
}
defer rts.Close()
size, err := rts.Size()
if err == nil {
w.Header().Set("Content-Length", fmt.Sprintf("%d", size))
}
for key := range header {
w.Header().Set(key, header.Get(key))
}
w.WriteHeader(config.StatusCode)
cancelProgDisp := output.DisplayProgress(
cmd.Context(),
&rts.Progress,
125*time.Millisecond,
r.RemoteAddr,
0,
)
defer cancelProgDisp()
// Start writing the file data to the client while timing how long it takes
bw, getBufBytes := output.NewBufferedWriter(ctx, w)
fileReport := events.File{
Size: int64(size),
TransferStartTime: time.Now(),
}
n, err := io.Copy(bw, rts)
fileReport.TransferSize = n
fileReport.TransferEndTime = time.Now()
if err != nil {
events.Raise(ctx, &fileReport)
events.Raise(ctx, events.ClientDisconnected{Err: err})
return
}
fileReport.Content = getBufBytes
events.Raise(ctx, &fileReport)
events.Success(ctx)
<-doneReadingBody
}