Support additional HTTP headers for tiles.

[grst]

e.g. strava heatmap and outdooractive block requests from google earth. This can be circumvented.

[barbudor]

Hi @grst
Any timeline for supporting extra headers ?
I would need to be able to add User-agent and Referer.
I'm using such trick in MoBAC (using bsh) and LocusMapPro and it's very efficient to make some servers to work.
Thanks

[barbudor]

Hi again @grst
I looked in it to make a PR.
I think I'm ok with reading a new tag extraHeader into the MapLayer class from the XML.
Using syntax similar as LocusMap:

<extraHeader><![CDATA[User-Agent#Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36]]></extraHeader>
<extraHeader><![CDATA[Referer#https://www.geoportail.gouv.fr/carte]]></extraHeader>

But I can't seem to understand where the web request is performed to add those headers
Any hint to help me ?
Thanks

[grst]

Hi @barbudor,

I currently don't have time to actively maintain this project -- therefore, there are no timelines.
But I'll gladly help you to make a PR.

I'm afraid it's a little more complicated. Web requests are made from different places, and only one is made directly from python:

• By Google Earth. The Link stored in the KML is generated here and here. You would need to find out how to pass the headers via KML.
• By GEOS for map printing:

  geos/geos/print.py

  Line 106 in 15134a3

  def download_tile(map_layer, zoom, x, y):

• By openlayers to display the web map: JSON object containing map info and displaying the map layers.

If you are only interested in one part, I would also merge a PR ignoring the other parts, as it's at least a start for this feature.

Cheers,
Gregor

[barbudor]

Hi Gregor

Many thanks.
I think it's going to take a little time for me to find my way.
I'll let you know

Best regards

barbudor