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Merge pull request #32 from taradiddles/master

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iaq: add process flow when opening a link/file in another VM
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Ivan 2018-05-15 08:10:58 +00:00 committed by GitHub
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@ -83,6 +83,14 @@ QtCreator.
See "source" link [here](https://dev.qubes-os.org/projects/core-admin/en/latest/qubes-vm/qubesvm.html#qubes.vm.qubesvm.QubesVM.start).
### What is the process flow when opening a link/file in another VM ?
1. in an AppVM ('srcVM') a link - or file - is set to be opened with the graphical "open in VM" or "open in dispVM" extensions (or respectively with the `/usr/bin/qvm-open-in-vm` or `/usr/bin/qvm-open-in-dvm` command line tools)
2. in src VM, the destination VM is hardcoded to '$dispvm' if dispVMs are used (`/usr/bin/qvm-open-in-dvm` is a simple wrapper to `/usr/bin/qvm-open-in-vm`)
3. in srcVM, `/usr/lib/qubes/qrexec-client-vm` is called, which in turn executes the `qubes.OpenURL` [RPC service](https://www.qubes-os.org/doc/qrexec3/#qubes-rpc-services) to send the url to dstVM
4. in dstVM, `/etc/qubes-rpc/qubes.OpenURL` is called upon reception of the `qubes.OpenURL` RPC event above, which validates the url and executes `/usr/bin/qubes-open`
5. in dstVM, `/usr/bin/qubes-open` executes `xdg-open`, which then opens the url/file with the program registered to handle the associated mime type (for additional info see the [freedesktop specifications](https://www.freedesktop.org/wiki/)).
### How can I contribute to developing Qubes Windows Tools for R4.0?
See [this post](https://www.mail-archive.com/qubes-devel@googlegroups.com/msg02808.html) and thread.