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rosyna's profile
Rosyna Keller
Rosyna Keller
Rosyna Keller
@rosyna

Rosyna Keller

@rosyna

A long time Mac developer that also Always Needs a Hug. Probably not a shoe. Cotidie Morimur

Joined February 2009
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    Previous Tweet
    1. Rosyna Keller ‏@rosyna Feb 15

      @mjtsai @drewthaler That's exactly how sandboxing works today on Mac OS X.

      0 replies 0 retweets 0 likes
    2. Michael Tsai ‏@mjtsai Feb 16

      @rosyna @drewthaler And it doesn’t, AFAIK, address APIs that area available but behave differently when the app is sandboxed.

      0 replies 0 retweets 0 likes
    3. Rosyna Keller ‏@rosyna Feb 16

      @mjtsai @drewthaler Which such APIs do that? There is a list of "temporary extensions" that are only temp for MAS https://developer.apple.com/library/mac/documentation/Miscellaneous/Reference/EntitlementKeyReference/Chapters/AppSandboxTemporaryExceptionEntitlements.html#//apple_ref/doc/uid/TP40011195-CH5-SW1 …

      0 replies 0 retweets 0 likes
    4. Michael Tsai ‏@mjtsai Feb 16

      @rosyna @drewthaler For example, -[NSWorkspace openFile:]. The rules have changed several times w/ OS versions and are not documented.

      0 replies 0 retweets 0 likes
    5. Rosyna Keller ‏@rosyna Feb 16

      @mjtsai @drewthaler What rules for openFile:? You just need to call startAccessingSecurityScopedResource: first to punch a hole in sandbox

      0 replies 0 retweets 0 likes
    6. Michael Tsai ‏@mjtsai Feb 16

      @rosyna @drewthaler No, there are cases where the document can't be opened if the app for it isn’t sandboxed, even if you punch a hole.

      0 replies 0 retweets 0 likes
    7. Rosyna Keller ‏@rosyna Feb 16

      @mjtsai @drewthaler Do you have an example of that? Because LaunchServices handles openFile.

      0 replies 0 retweets 0 likes
    8. Michael Tsai ‏@mjtsai Feb 16

      @rosyna @drewthaler Not handy. DTS eventually explained it to me; they were initially unaware, too. I fear more undocumented cases like this

      0 replies 0 retweets 0 likes
    9. Rosyna Keller ‏@rosyna Feb 16

      @mjtsai @drewthaler Because restrictions on openFile: are mostly handled by Gatekeeper, not the sandbox.

      0 replies 0 retweets 0 likes
    10. Michael Tsai ‏@mjtsai Feb 16

      @rosyna @drewthaler Similar issue in that some AppleScripts don’t work from sandbox, even when run using NSUserAppleScriptTask.

      0 replies 0 retweets 0 likes
      Rosyna Keller ‏@rosyna Feb 16

      @mjtsai @drewthaler In both cases, you need to use security-scoped bookmarks and startAccessingSecurityScopedResource

      6:13 PM - 16 Feb 2016
      0 replies 0 retweets 0 likes
      1. Michael Tsai ‏@mjtsai Feb 17

        @rosyna @drewthaler Perhaps security-scoped bookmarks are supposed to work in this case, but in practice they didn’t.

        0 replies 0 retweets 0 likes
        1. Rosyna Keller ‏@rosyna Feb 16

          @mjtsai @drewthaler As it's the only way for multiple processes to get access to sandboxed resources.

          0 replies 0 retweets 0 likes
        2. Rosyna Keller ‏@rosyna Feb 16

          @mjtsai @drewthaler AppleScript will do this automatically for *some* things, but that's a workaround for apps and is subject to change.

          0 replies 0 retweets 0 likes

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