1295109 - Directly send PDF file to OS's spool module when possible

Status: NEW

(Core :: Printing: Output, defect)

Description

[Evelyn Hung]

On Linux(and maybe OS X), they allows application send PDF file to its spool module directly. If Gecko supports this, it might be more efficient to print PDF.

Comment 1

[Milan Sreckovic [:milan] (needinfo for best results)]

Check that we correctly handle the PDF forms scenario.

Comment 2

[Evelyn Hung]

This link might be useful to understand linux's spooling module.
https://notehub.org/w88ic

Comment 3

[Jonathan Watt [:jwatt]]

(In reply to Evelyn Hung [:evelyn] from comment #0)
> On Linux(and maybe OS X), they allows application send PDF file to its spool
> module directly. If Gecko supports this, it might be more efficient to print
> PDF.

For OS X, see the code that bug 1309272 part 8 adds to nsDeviceContextSpecX::EndDocument (specifically the PMPrinterPrintWithFile call).

Comment 4

[Yury Delendik (:yury)]

What are the security implications of sending possibly malicious PDF directly to the OS (without sanitizing it)?

Comment 5

[Evelyn Hung]

Hmm... I know PDFium can rewrite the to-be-printed-PDF and pass out a new binary to its caller. Not sure how effective it removes those malicious scripts. :-/