# SandBox application **URL:** \ **Category:** macOS\ **Created:** [August 26, 2014, 11:17am UTC](https://forum.xojo.com/t/sandbox-application/18890 "2014-08-26T11:17:38Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Emile\_Schwarz](https://forum.xojo.com/letter_avatar_proxy/v4/letter/e/90ced4/32.png) [@Emile\_Schwarz](https://forum.xojo.com/u/Emile_Schwarz)\ **Post date:** [August 26, 2014, 11:17am UTC](https://forum.xojo.com/t/sandbox-application/18890/1 "2014-08-26T11:17:38Z")
I downloaded three days ago a sandboxed application. It keeps ask me to click in an Extract button because of sandboxing. If I click cancel, as one would expect, nothing is done (the save is not done). Is this usual ? BTW: that is that application who sas it is sandboxed. ---
**Author:** ![Tim\_Parnell](https://forum.xojo.com/user_avatar/forum.xojo.com/tim_parnell/32/161_2.png) [@Tim\_Parnell](https://forum.xojo.com/u/Tim_Parnell)\ **Post date:** [August 26, 2014, 12:20pm UTC](https://forum.xojo.com/t/sandbox-application/18890/2 "2014-08-26T12:20:40Z")
This sounds like an issue you should bring up with the developer of whatever app that may be. ---
**Author:** ![Roger\_Clary](https://forum.xojo.com/letter_avatar_proxy/v4/letter/r/eada6e/32.png) [@Roger\_Clary](https://forum.xojo.com/u/Roger_Clary)\ **Post date:** [August 26, 2014, 12:22pm UTC](https://forum.xojo.com/t/sandbox-application/18890/3 "2014-08-26T12:22:19Z")
Depending on where you downloaded it, I might be very leery of that app. ---
**Author:** ![Sam\_Rowlands](https://forum.xojo.com/user_avatar/forum.xojo.com/sam_rowlands/32/265_2.png) [@Sam\_Rowlands](https://forum.xojo.com/u/Sam_Rowlands)\ **Post date:** [August 26, 2014, 1:37pm UTC](https://forum.xojo.com/t/sandbox-application/18890/4 "2014-08-26T13:37:09Z")
What application? There could be a bunch of reasons as to why this happens. For instance I implemented a ‘Restore’ function to Backup To Go, but it doesn’t work if the original file has been deleted (which is why you’d backup). Turns out that a Security-Scoped Bookmark is only valid, when the file exists. If the original file is deleted, I can’t re-open that bookmark to restore it. So I have to ask the user to choose where to ‘Restore’ their files to. ---
**Author:** ![Emile\_Schwarz](https://forum.xojo.com/letter_avatar_proxy/v4/letter/e/90ced4/32.png) [@Emile\_Schwarz](https://forum.xojo.com/u/Emile_Schwarz)\ **Post date:** [August 30, 2014, 8:16am UTC](https://forum.xojo.com/t/sandbox-application/18890/5 "2014-08-30T08:16:59Z")
The application comes from the App Store. The situation evolves with time: sometimes it ask only once and never ask again and some reboot later (afternoon, the day after), it consistently ask to confirm the Extract location… Sam: this is an archive expander (I use it as is); and no, I do not ask to delete the archive file to expand (I prefer to keep it for security reasons). Very strange. On the other hand, the application works fine. ---
**Author:** ![Emile\_Schwarz](https://forum.xojo.com/letter_avatar_proxy/v4/letter/e/90ced4/32.png) [@Emile\_Schwarz](https://forum.xojo.com/u/Emile_Schwarz)\ **Post date:** [September 1, 2014, 9:00am UTC](https://forum.xojo.com/t/sandbox-application/18890/6 "2014-09-01T09:00:01Z")
Here’s the Extract button’s Parent window: ![](https://www.mediafire.com/convkey/b3fc/at2j8nopx1o7e8g6g.jpg) The text explain why this window is displayed and that the permission will be set to write into that folder (remembered for later use). Unfortunately - as I wrote above - this is not alwyas true; it is false, most of the time. ---
**Author:** ![Emile\_Schwarz](https://forum.xojo.com/letter_avatar_proxy/v4/letter/e/90ced4/32.png) [@Emile\_Schwarz](https://forum.xojo.com/u/Emile_Schwarz)\ **Post date:** [September 1, 2014, 9:17am UTC](https://forum.xojo.com/t/sandbox-application/18890/7 "2014-09-01T09:17:38Z")
Since the image is not displayed (but due to McDonald’s France WiFi Third Party filtering it), here is the image link: [https://www.mediafire.com/convkey/b3fc/at2j8nopx1o7e8g6g.jpg](https://www.mediafire.com/convkey/b3fc/at2j8nopx1o7e8g6g.jpg) ---
**Author:** ![Emile\_Schwarz](https://forum.xojo.com/letter_avatar_proxy/v4/letter/e/90ced4/32.png) [@Emile\_Schwarz](https://forum.xojo.com/u/Emile_Schwarz)\ **Post date:** [September 1, 2014, 10:45am UTC](https://forum.xojo.com/t/sandbox-application/18890/8 "2014-09-01T10:45:46Z")
I can confirm the filtering (for me and probably all McDonald’s customers in France) as I can see my screen shot from a different location (not filtered). Weird ! ---
**Author:** ![Sam\_Rowlands](https://forum.xojo.com/user_avatar/forum.xojo.com/sam_rowlands/32/265_2.png) [@Sam\_Rowlands](https://forum.xojo.com/u/Sam_Rowlands)\ **Post date:** [September 2, 2014, 12:06am UTC](https://forum.xojo.com/t/sandbox-application/18890/9 "2014-09-02T00:06:45Z")
Ok, this makes sense and I yes it does have to operate in that manor, you can only read and write to files or folders that your application has permission for. ---
**Author:** ![Emile\_Schwarz](https://forum.xojo.com/letter_avatar_proxy/v4/letter/e/90ced4/32.png) [@Emile\_Schwarz](https://forum.xojo.com/u/Emile_Schwarz)\ **Post date:** [September 2, 2014, 9:55am UTC](https://forum.xojo.com/t/sandbox-application/18890/10 "2014-09-02T09:55:44Z")
Yes Sam, but only the first time you run the application, not nearly everytime. (nearly because it asked me once in a session, one day, then never do that again.) By everytime, I mean: it ask me all the time in the same running session. If he asked me the first time I run it in each live sessions, OK. But thousand times in a session ? At last, what if i wrote an AppleScript to deal with a folder full of archives ? BTW: this is not in Off-Topic, because I also want to know if your applications (yes, my fellow programmers), your sandboxed applications buit with Xojo works the same. ---
**Author:** ![Sam\_Rowlands](https://forum.xojo.com/user_avatar/forum.xojo.com/sam_rowlands/32/265_2.png) [@Sam\_Rowlands](https://forum.xojo.com/u/Sam_Rowlands)\ **Post date:** [September 3, 2014, 12:13am UTC](https://forum.xojo.com/t/sandbox-application/18890/11 "2014-09-03T00:13:20Z")
Some of what you say is due to the Sandbox mechanism. Some of it sounds like a lazy developer. # Basically, your app can"t access users folders until a user grants it ‘permission’, either by dragging the file/folder in to the application or using a open/save dialog. # However once you have permission, you can use either NSDocumentController to add that as a recent file, or store a Security-Scoped Bookmark to hold onto that permission (with a bit of hacking you can even retain permission by setting the window icon). From what I understand it seems like the other developer is not holding on to permission correctly, but I can’t say for sure without exactly seeing his code. There are some issues with SSB, and he may have discovered one, or may not be using it correctly either. ---
**Author:** ![Emile\_Schwarz](https://forum.xojo.com/letter_avatar_proxy/v4/letter/e/90ced4/32.png) [@Emile\_Schwarz](https://forum.xojo.com/u/Emile_Schwarz)\ **Post date:** [September 3, 2014, 7:56am UTC](https://forum.xojo.com/t/sandbox-application/18890/12 "2014-09-03T07:56:16Z")
Good catch Sam, I will experience drag and drop and Open (from File). 'till now, I only used double-click. ---
**Author:** ![Emile\_Schwarz](https://forum.xojo.com/letter_avatar_proxy/v4/letter/e/90ced4/32.png) [@Emile\_Schwarz](https://forum.xojo.com/u/Emile_Schwarz)\ **Post date:** [September 3, 2014, 8:26am UTC](https://forum.xojo.com/t/sandbox-application/18890/13 "2014-09-03T08:26:49Z")
Yes, Sam you found it ! Drag and drop an archive in the application ask if I really want to do that ONCE (only). Double-click in an archive file ask ALWAYS. This is queer ! ---
**Author:** ![system](https://forum.xojo.com/uploads/default/original/1X/455b4dcc0e61630e9f81940004ddffa49c432a46.png) [@system](https://forum.xojo.com/u/system)\ **Post date:** [October 29, 2020, 5:23pm UTC](https://forum.xojo.com/t/sandbox-application/18890/14 "2020-10-29T17:23:40Z")