New option for ss:// URL association

[database64128]

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Added an option to allow association with ss:// URLs.

This PR was made at the request of @studentmain . Credit goes to @studentmain for most of the code 👨‍💻!

[chenshaoju]

The quick test is pass, Base appveyor version 4.1.10.4.

But there is a small issue: when ss:// URI is invalid, There is no error message.

[celeron533]

Perhaps using full name "Shadowsocks" is better

[database64128]

Perhaps using full name "Shadowsocks" is better

By using "Shadowsocks" you are registering Shadowsocks:// instead of ss://.

[celeron533]

Thanks @database64128 , I made a mistake...

Note:
Outline or other software may also register the protocol

[database64128]

Outline or other software may also register the protocol

Just tested with Outline installed. The current behavior of our implementation is overwriting existing association, which is not perfect, but good enough. As far as I know, there is no way to associate a URI scheme with more than one Win32 application. The API for that is only available for UWP apps.

[database64128]

Also note that Outline overwrites the URI association on boot. Apparently they are using the same implementation, with a more aggressive approach and no way to turn off.

[database64128]

Our implementation checks if ss:// is associated with itself on boot to determine the status of association, and shows it with MenuItem.Checked. It's up to the user to associate the URI scheme or not.

[ghost]

with a more aggressive approach and no way to turn off

We need open an issue for it.

[database64128]

The quick test is pass, Base appveyor version 4.1.10.4.

But there is a small issue: when ss:// URI is invalid, There is no error message.

Actually the original "Import URL from clipboard" also shows no error message. I added messages for both in a1e4245.

[celeron533]

Name pipe or pipeserver may a bit confusion with existing StartPipe, PipeConnection... network related communications.

[database64128]

Name pipe or pipeserver may a bit confusion with existing StartPipe, PipeConnection... network related communications.

Resolved in 4bd33db.

[chenshaoju]

The quick test is pass, Base appveyor version 4.1.10.7.
:+1 Looks good to me, but someone else must approve.

[database64128]

Any plan to merge? I've been using the build on my PCs and everything seems good.

[celeron533]

Merged. Thank you very much @database64128 !