Add project properties support

qsa-api/qsa_api/api/projects.py

@@ -48,6 +48,53 @@ def project_info(name: str):
         return {"error": "internal server error"}, 415
 
 
+@projects.get("/<name>/properties")
+def project_properties(name: str):
+    log_request()
+    try:
+        psql_schema = request.args.get("schema", default="public")
+        project = QSAProject(name, psql_schema)
+
+        if project.exists():
+            return jsonify(project.properties)
+        return {"error": "Project does not exist"}, 415
+    except Exception as e:
+        logger().exception(str(e))
+        return {"error": "internal server error"}, 415
+
+
+@projects.post("/<name>/properties")
+def project_properties_update(name: str):
+    log_request()
+    try:
+        schema = {
+            "type": "object",
+            "required": [],
+            "properties": {
+            },
+        }
+
+        psql_schema = request.args.get("schema", default="public")
+        project = QSAProject(name, psql_schema)
+        if project.exists():
+            data = request.get_json()
+            try:
+                validate(data, schema)
+            except ValidationError as e:
+                return {"error": e.message}, 415
+
+            rc, err = project.properties_update(data)
+            if rc:
+                return jsonify(rc), 201
+            else:
+                return {"error": err}, 415
+        else:
+            return {"error": "Project does not exist"}, 415
+    except Exception as e:
+        logger().exception(str(e))
+        return {"error": "internal server error"}, 415
+
+
 @projects.post("/")
 def project_add():
     log_request()
@@ -156,7 +203,7 @@ def project_del_style(name, style):
             return {"error": "Project does not exist"}, 415
     except Exception as e:
         logger().exception(str(e))
-        return {"error": "internal server error"}, 415
+        return {"error": "internal server error"}, 414
 
 
 @projects.post("/<name>/layers/<layer_name>/style")

qsa-api/qsa_api/project.py

@@ -29,14 +29,12 @@
 )
 
 from .mapproxy import QSAMapProxy
+from .properties import ProjectProperties
 from .vector import VectorSymbologyRenderer
 from .utils import StorageBackend, config, logger
 from .raster import RasterSymbologyRenderer, RasterOverview
 
 
-RENDERER_TAG_NAME = "renderer-v2"  # constant from core/symbology/renderer.h
-
-
 class QSAProject:
     def __init__(self, name: str, schema: str = "public") -> None:
         self.name: str = name
@@ -63,6 +61,12 @@ def sqlite_db(self) -> Path:
             con.close()
         return p
 
+    @property
+    def properties(self) -> dict:
+        props = ProjectProperties()
+        props.read(self.project)
+        return props.to_json()
+
     @staticmethod
     def projects(schema: str = "") -> list:
         p = []
@@ -136,6 +140,18 @@ def metadata(self) -> dict:
 
         return m
 
+    def properties_update(self, data) -> bool:
+        project = self.project
+
+        properties = ProjectProperties()
+        properties.read(project)
+        rc, err = properties.update(data)
+        if rc:
+            properties.write(project)
+            project.write()
+
+        return rc, err
+
     def cache_metadata(self) -> (dict, str):
         if self._mapproxy_enabled:
             return QSAMapProxy(self.name).metadata(), ""

qsa-api/qsa_api/properties.py

@@ -0,0 +1,77 @@
+# coding: utf8
+
+from qgis.core import QgsProject
+
+
+class _Property:
+    def __init__(self, scope: str, key: str, entry_type, default):
+        self.scope = scope
+        self.key = key
+        self.type = entry_type
+        self.default = default
+        self._value = self.default
+
+    @property
+    def value(self):
+        return self._value
+
+    @value.setter
+    def value(self, v):
+        self._value = self.type(v)
+
+    def update(self, project):
+        meth = None
+        if self.type == bool:
+            meth = project.readBoolEntry
+        elif self.type == int:
+            meth = project.readNumEntry
+
+        if meth:
+            self.value = meth(self.scope, self.key, self.default)[0]
+
+
+class ProjectProperties:
+    def __init__(self) -> None:
+        self.props = {}
+
+        # WMS project properties
+        wms = {}
+
+        prop = _Property("WMSAddWktGeometry", "/", bool, False)
+        wms["getfeatureinfo_geometry"] = prop
+
+        prop = _Property("WMSPrecision", "/", int, 8)
+        wms["getfeatureinfo_geometry_precision"] = prop
+
+        self.props["wms"] = wms
+
+    def to_json(self):
+        d = {}
+        d["wms"] = {}
+        for key in self.props["wms"]:
+            d["wms"][key] = self.props["wms"][key].value
+        return d
+
+    def read(self, project):
+        for key in self.props:
+            for subkey in self.props[key]:
+                self.props[key][subkey].update(project)
+
+    def update(self, data) -> (bool, str):
+        for key in data:
+            if key not in self.props:
+                return False, f"Unsupported key '{key}'"
+
+            for subkey in data[key]:
+                if subkey not in self.props[key]:
+                    return False, f"Unsupported key '{subkey}'"
+
+                self.props[key][subkey].value = data[key][subkey]
+
+        return True, ""
+
+    def write(self, project) -> (bool, str):
+        for key in self.props:
+            for subkey in self.props[key]:
+                prop = self.props[key][subkey]
+                project.writeEntry(prop.scope, prop.key, prop.value)