[PATCH] Open local url using the os instead of the browser

[Emvee]

I have a local python script that listens on a port and accepts a URL like

​http://127.0.0.1:8282/qgis_zoom_to?lat=51.5810865&lon=4.5293149

I did put that in the custom URL configuration of the Utilsplugins2 settings as:

​http://127.0.0.1:8282/qgis_zoom_to?lat={#lat}&lon={#lon}

And that will open the browser after which the browser will call the local script.
While this is working it has the drawback that it leaves an empty tab open every time you involve this script and this extra browser step adds latency

What this patch does is to check for a local address and if so, open the url using the Java system functionality. This way I see the script is called without involving the browser.

With the current patch, josm will emit a warning if the local system is not handling the request:

2024-05-22 10:25:42.538 SEVERE: Can not open URL ​http://127.0.0.1:8282/qgis_zoom_to?lat=51.5810865&lon=4.5293149: java.net.ConnectException: Connection refused

[stoecker]

Your check for a local URL is broken. local url's can also be localhost, [::1], 127.1.2.234 and so on. Rather than checking the URL you need to check the subnet, which is 127/8 or ::1/128.

Anyway there is no reason to handle local URLs different. The same topic applies to any URL. Maybe rather than what you did prepend "directcall:" (or maybe another already somehwere else established marker I don't know about) to the URL and when the URL starts with "dircectcall:" strip that and call it directly?

[anonymous]

Agreed, using something like "directcall" makes more sense, let me have a look into that and update the patch.

[Emvee]

I did look for some other established marker but have not found one, Microsoft has ​https://learn.microsoft.com/en-us/windows/uwp/launch-resume/launch-default-app but this is starting other App, not http tp the local machine.

I did work some time with directcall: but I do not like the two colons in directcall:http:// and instead reverted to a @localhost after the link, so for example

​http://127.0.0.1:8282/qgis_zoom_to?lat={#lat}&lon={#lon}@localhost

Wondering what others think of this.

Patch attached, at_localhost.patch

[taylor.smock]

Ticket retargeted after milestone closed

[taylor.smock]

Ticket retargeted after milestone closed

[stoecker]

In 36362/osm:

see #23688, patch for local URL calling

[stoecker]

In 36363/osm:

fix #23688, patch for local URL calling (dist)