isa/gnome-shell
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

screenshot: Extend ScreenshotArea parameter validation

Browse Source 
We currently only ensure that width and height are positive, so it
is still possible to pass in values that don't make any sense at all
(which may even result in a crash when exceeding limits imposed by
X11).
There is nothing to screenshot outside the actual screen area, so
restrict the parameters to that.

https://bugzilla.gnome.org/show_bug.cgi?id=699752
This commit is contained in:
Florian Müllner 2013-11-04 11:14:44 +01:00
parent 4f7014b2d5
commit f9f5004909
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
js/ui/screenshot.js
View File

@ -79,7 +79,9 @@ const ScreenshotService = new Lang.Class({
ScreenshotAreaAsync : function (params, invocation) { ScreenshotAreaAsync : function (params, invocation) {
let [x, y, width, height, flash, filename, callback] = params; let [x, y, width, height, flash, filename, callback] = params;
if (height <= 0 || width <= 0) { if (x < 0 || y < 0 ||
width <= 0 || height <= 0 ||
x + width > global.screen_width || y + height > global.screen_height) {
invocation.return_error_literal(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED, invocation.return_error_literal(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED,
"Invalid params"); "Invalid params");
return; return;