From 5fcacde1967a1b66c4c4dae6f1dd66a243cfcc88 Mon Sep 17 00:00:00 2001
From: Daniel Schadt <kingdread@gmx.de>
Date: Sat, 19 Nov 2022 16:10:49 +0100
Subject: add an option to disable the tile proxy

---
 fietsboek/__init__.py        |  2 ++
 fietsboek/jinja2.py          | 16 ++++++++++++----
 fietsboek/views/tileproxy.py |  9 ++++++---
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/fietsboek/__init__.py b/fietsboek/__init__.py
index 7aede7b..4835480 100644
--- a/fietsboek/__init__.py
+++ b/fietsboek/__init__.py
@@ -72,6 +72,8 @@ def main(global_config, **settings):
         settings.get('available_locales', 'en'))
     settings['fietsboek.pages'] = aslist(
         settings.get('fietsboek.pages', ''))
+    settings['fietsboek.tile_proxy.disable'] = asbool(
+        settings.get('fietsboek.tile_proxy.disable', 'false'))
     settings['thunderforest.maps'] = aslist(
         settings.get('thunderforest.maps', ''))
     settings['fietsboek.default_tile_layers'] = aslist(
diff --git a/fietsboek/jinja2.py b/fietsboek/jinja2.py
index ff60660..a0b9457 100644
--- a/fietsboek/jinja2.py
+++ b/fietsboek/jinja2.py
@@ -94,13 +94,21 @@ def global_embed_tile_layers(request):
     # pylint: disable=import-outside-toplevel,cyclic-import
     from .views import tileproxy
     tile_sources = tileproxy.sources_for(request)
+
+    if request.registry.settings.get("fietsboek.tile_proxy.disable"):
+        def _url(source):
+            return source.url_template
+    else:
+        def _url(source):
+            return (request.route_url("tile-proxy", provider=source.key, x="{x}", y="{y}", z="{z}")
+                           .replace("%7Bx%7D", "{x}")
+                           .replace("%7By%7D", "{y}")
+                           .replace("%7Bz%7D", "{z}"))
+
     return Markup(json.dumps([
         {
             "name": source.name,
-            "url": request.route_url("tile-proxy", provider=source.key, x="{x}", y="{y}", z="{z}")
-                          .replace("%7Bx%7D", "{x}")
-                          .replace("%7By%7D", "{y}")
-                          .replace("%7Bz%7D", "{z}"),
+            "url": _url(source),
             "attribution": source.attribution,
             "type": source.layer_type.value,
         }
diff --git a/fietsboek/views/tileproxy.py b/fietsboek/views/tileproxy.py
index 2a1e6d0..b9a32c4 100644
--- a/fietsboek/views/tileproxy.py
+++ b/fietsboek/views/tileproxy.py
@@ -193,10 +193,13 @@ def tile_proxy(request):
     :return: The HTTP response.
     :rtype: pyramid.response.Response
     """
+    if request.registry.settings.get("fietsboek.tile_proxy.disable"):
+        raise HTTPBadRequest("Tile proxying is disabled")
+
     provider = request.matchdict['provider']
     tile_sources = {source.key: source for source in sources_for(request)}
     if provider not in tile_sources:
-        return HTTPBadRequest("Invalid provider")
+        raise HTTPBadRequest("Invalid provider")
 
     x, y, z = (int(request.matchdict['x']), int(request.matchdict['y']),
                int(request.matchdict['z']))
@@ -212,7 +215,7 @@ def tile_proxy(request):
         # We've gotten too many timeouts from this provider recently, so avoid
         # contacting it in the first place.
         LOGGER.debug("Aborted attempt to contact %s due to previous timeouts", provider)
-        return HTTPGatewayTimeout(f"Avoiding request to {provider}")
+        raise HTTPGatewayTimeout(f"Avoiding request to {provider}")
 
     url = tile_sources[provider].url_template.format(x=x, y=y, z=z, s=random.choice("abc"))
     headers = {
@@ -228,7 +231,7 @@ def tile_proxy(request):
         LOGGER.debug("Proxy timeout when accessing %r", url)
         request.redis.incr(timeout_tracker)
         request.redis.expire(timeout_tracker, PUNISHMENT_TTL)
-        return HTTPGatewayTimeout(f"No response in time from {provider}")
+        raise HTTPGatewayTimeout(f"No response in time from {provider}") from None
     else:
         try:
             resp.raise_for_status()
-- 
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