I tried to repeat the same ordering as the iris infrastructure within the
function, but it still behaves not as expected. It does not show the
file->save... dialog. It shows the file within the browser as a web page.
func blah (w http.ResponseWriter, r *http.Request) {
strOutputFileOfJournalctl = "journalctlLog.json"
w.Header().Set("Content-Type","application/octet-stream") //forces the
save as dialog
strSomeStringInJsonFormat := "{ Blah: 'blah value' }"
myOutput := []byte(strSomeStringInJsonFormat)
//ATTEMPT #1
//w.Write(myOutput) //displays in web browser page
//ATTEMPT #4
//w.Header().Set("Content-Disposition","attachment;filename=" +
strOutputFileOfJournalctl)
//ATTEMPT #3
//w.Header().Add("Content-Length", strconv.Itoa( len(myOutput) ) )
//w.Write(myOutput) //displays in web browser page
//w.Header().Set("Content-Disposition","attachment;filename=" +
strOutputFileOfJournalctl)
//ATTEMPT #2
w.Header().Add("Content-Length", strconv.Itoa(len(myOutput)) )
tmpFile, _ := ioutil.TempFile(os.TempDir(), "OurGeneratedCustomLog")
defer os.Remove(tmpFile.Name())
tmpFile.Write(myOutput)
tmpFile.Close()
http.ServeFile(w, r, tmpFile.Name())
//ATTEMPT #5
w.Header().Set("Content-Disposition","attachment;filename=" + "\"" +
strOutputFileOfJournalctl + "\"")
}
On Friday, June 24, 2016 at 7:06:59 AM UTC-4, David Marceau wrote:
>
> Again, I want to clarify the file does arrive in the browser, but I want
> to ensure the "file->save..." dialog appears in the web browser when it
> arrives. I found some older code I wrote a couple of years ago that was
> behaving as expected:
> w.Header().Set("Content-Type", "application/octet-stream")
> w.Header().Set("Content-Disposition", "attachment; filename=" +
> myBasePdf + ".pdf")
> http.ServeFile(w, req, myGenPdfFileName)
>
>
> I acknowledge when I wrote this email I made a typo, but in my code I do
> have the Itoa correctly.
> w.Header().Set("Content-Length", strconv.Itoa( len(myCmdOutput) ) )
> I never used that content-length field because I read somewhere that I
> shouldn't.
>
> Last night I took a look at iris to see how they do it and found:
> https://github.com/kataras/iris/blob/master/context.go#L583
> err := ctx.ServeFile(filename, false)
> if err != nil {
> return err
> }
>
> ctx.RequestCtx.Response.Header.Set(contentDisposition, "
> attachment;filename="+destinationName)
>
> I am scratching my head since the header set content-disposition is
> happening after the ServeFile which is different from what all the docs and
> what I am used to seeing. It seems calling these functions are
> order-independant. When does the connection actually send the file over
> the connection?
>
> I believe the Iris send file also provides what I want as expected
> behaviour, but I haven't tried it yet.
>
> On Thursday, June 23, 2016 at 6:15:16 PM UTC-4, Val wrote:
>>
>> The commented line seems to have typo strconv.Ito
>>
>> Maybe the typo prevents proper recompilation, and server goes on with old
>> code?
>>
>
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