Make timeout for forwarded requests configurable (default 30 sec)

Author: manisandro

schemas/qwc-legend-service.json

@@ -24,6 +24,10 @@
           "description": "Default base URL for forwarding WMS GetLegendGraphics requests. Default: `http://localhost:8001/ows/`",
           "type": "string"
         },
+        "network_timeout": {
+          "description": "Network timeout for requests forwarded to the QGIS Server, in seconds. Default: `30`",
+          "type": "number"
+        },
         "qgis_server_url_tenant_suffix": {
           "description": "If qgs_resources are placed in tenant specific subdirs, set this property to the respective subdir path portion. Default: `<empty>`",
           "type": "string"

src/legend_service.py

@@ -58,6 +58,8 @@ def __init__(self, tenant, logger):
         if qgis_server_url_tenant_suffix:
             self.qgis_server_url += qgis_server_url_tenant_suffix + '/'
 
+        self.network_timeout = config.get('network_timeout', 30)
+
         self.basic_auth_login_url = config.get('basic_auth_login_url')
         self.legend_default_font_size = config.get("legend_default_font_size")
 
@@ -175,7 +177,7 @@ def get_legend(self, service_name, layers_param, styles_param, format_param, par
                             self.legend_default_font_size
                 response = requests.get(
                     self.qgis_server_url + service_name, params=req_params,
-                    timeout=30
+                    timeout=self.network_timeout
                 )
                 self.logger.debug("Forwarding request to %s" % response.url)