Use pathlib.Path to return path locations

dangerzone/container_utils.py

@@ -121,7 +121,7 @@ def delete_image_tag(tag: str) -> None:
 
 def get_expected_tag() -> str:
     """Get the tag of the Dangerzone image tarball from the image-id.txt file."""
-    with open(get_resource_path("image-id.txt")) as f:
+    with get_resource_path("image-id.txt").open() as f:
         return f.read().strip()
 
 
@@ -130,7 +130,7 @@ def load_image_tarball() -> None:
     tarball_path = get_resource_path("container.tar")
     try:
         res = subprocess.run(
-            [get_runtime(), "load", "-i", tarball_path],
+            [get_runtime(), "load", "-i", str(tarball_path)],
             startupinfo=get_subprocess_startupinfo(),
             capture_output=True,
             check=True,

dangerzone/gui/__init__.py

@@ -51,7 +51,7 @@ class Application(QtWidgets.QApplication):
     def __init__(self, *args: typing.Any, **kwargs: typing.Any) -> None:
         super(Application, self).__init__(*args, **kwargs)
         self.setQuitOnLastWindowClosed(False)
-        with open(get_resource_path("dangerzone.css"), "r") as f:
+        with get_resource_path("dangerzone.css").open("r") as f:
             style = f.read()
         self.setStyleSheet(style)
 

dangerzone/gui/logic.py

@@ -63,7 +63,7 @@ class DangerzoneGui(DangerzoneCore):
             path = get_resource_path("dangerzone.ico")
         else:
             path = get_resource_path("icon.png")
-        return QtGui.QIcon(path)
+        return QtGui.QIcon(str(path))
 
     def open_pdf_viewer(self, filename: str) -> None:
         if platform.system() == "Darwin":
@@ -252,7 +252,7 @@ class Alert(Dialog):
     def create_layout(self) -> QtWidgets.QBoxLayout:
         logo = QtWidgets.QLabel()
         logo.setPixmap(
-            QtGui.QPixmap.fromImage(QtGui.QImage(get_resource_path("icon.png")))
+            QtGui.QPixmap.fromImage(QtGui.QImage(str(get_resource_path("icon.png"))))
         )
 
         label = QtWidgets.QLabel()

dangerzone/gui/main_window.py

@@ -62,7 +62,7 @@ def load_svg_image(filename: str, width: int, height: int) -> QtGui.QPixmap:
     This answer is basically taken from: https://stackoverflow.com/a/25689790
     """
     path = get_resource_path(filename)
-    svg_renderer = QtSvg.QSvgRenderer(path)
+    svg_renderer = QtSvg.QSvgRenderer(str(path))
     image = QtGui.QImage(width, height, QtGui.QImage.Format_ARGB32)
     # Set the ARGB to 0 to prevent rendering artifacts
     image.fill(0x00000000)
@@ -130,9 +130,8 @@ class MainWindow(QtWidgets.QMainWindow):
 
         # Header
         logo = QtWidgets.QLabel()
-        logo.setPixmap(
+        icon_path = str(get_resource_path("icon.png"))
-            QtGui.QPixmap.fromImage(QtGui.QImage(get_resource_path("icon.png")))
+        logo.setPixmap(QtGui.QPixmap.fromImage(QtGui.QImage(icon_path)))
-        )
         header_label = QtWidgets.QLabel("Dangerzone")
         header_label.setFont(self.dangerzone.fixed_font)
         header_label.setStyleSheet("QLabel { font-weight: bold; font-size: 50px; }")
@@ -1306,7 +1305,7 @@ class DocumentWidget(QtWidgets.QWidget):
 
     def load_status_image(self, filename: str) -> QtGui.QPixmap:
         path = get_resource_path(filename)
-        img = QtGui.QImage(path)
+        img = QtGui.QImage(str(path))
         image = QtGui.QPixmap.fromImage(img)
         return image.scaled(QtCore.QSize(15, 15))
 

dangerzone/isolation_provider/container.py

@@ -64,7 +64,7 @@ class Container(IsolationProvider):
         #
         # [1] https://github.com/freedomofpress/dangerzone/issues/846
         # [2] https://github.com/containers/common/blob/d3283f8401eeeb21f3c59a425b5461f069e199a7/pkg/seccomp/seccomp.json
-        seccomp_json_path = get_resource_path("seccomp.gvisor.json")
+        seccomp_json_path = str(get_resource_path("seccomp.gvisor.json"))
         security_args += ["--security-opt", f"seccomp={seccomp_json_path}"]
 
         security_args += ["--cap-drop", "all"]

dangerzone/isolation_provider/qubes.py

@@ -130,7 +130,6 @@ def is_qubes_native_conversion() -> bool:
         # This disambiguates if it is running a Qubes targetted build or not
         # (Qubes-specific builds don't ship the container image)
 
-        container_image_path = get_resource_path("container.tar")
+        return not get_resource_path("container.tar").exists()
-        return not os.path.exists(container_image_path)
     else:
         return False

dangerzone/logic.py

@@ -27,7 +27,7 @@ class DangerzoneCore(object):
         self.appdata_path = util.get_config_dir()
 
         # Languages supported by tesseract
-        with open(get_resource_path("ocr-languages.json"), "r") as f:
+        with get_resource_path("ocr-languages.json").open("r") as f:
             unsorted_ocr_languages = json.load(f)
             self.ocr_languages = dict(sorted(unsorted_ocr_languages.items()))
 

dangerzone/util.py

@@ -1,9 +1,9 @@
-import pathlib
 import platform
 import subprocess
 import sys
 import traceback
 import unicodedata
+from pathlib import Path
 
 try:
     import platformdirs
@@ -11,40 +11,39 @@ except ImportError:
     import appdirs as platformdirs
 
 
-def get_config_dir() -> str:
+def get_config_dir() -> Path:
-    return platformdirs.user_config_dir("dangerzone")
+    return Path(platformdirs.user_config_dir("dangerzone"))
 
 
-def get_resource_path(filename: str) -> str:
+def get_resource_path(filename: str) -> Path:
     if getattr(sys, "dangerzone_dev", False):
         # Look for resources directory relative to python file
-        project_root = pathlib.Path(__file__).parent.parent
+        project_root = Path(__file__).parent.parent
         prefix = project_root / "share"
     else:
         if platform.system() == "Darwin":
-            bin_path = pathlib.Path(sys.executable)
+            bin_path = Path(sys.executable)
             app_path = bin_path.parent.parent
             prefix = app_path / "Resources" / "share"
         elif platform.system() == "Linux":
-            prefix = pathlib.Path(sys.prefix) / "share" / "dangerzone"
+            prefix = Path(sys.prefix) / "share" / "dangerzone"
         elif platform.system() == "Windows":
-            exe_path = pathlib.Path(sys.executable)
+            exe_path = Path(sys.executable)
             dz_install_path = exe_path.parent
             prefix = dz_install_path / "share"
         else:
             raise NotImplementedError(f"Unsupported system {platform.system()}")
-    resource_path = prefix / filename
+    return prefix / filename
-    return str(resource_path)
 
 
-def get_tessdata_dir() -> pathlib.Path:
+def get_tessdata_dir() -> Path:
     if getattr(sys, "dangerzone_dev", False) or platform.system() in (
         "Windows",
         "Darwin",
     ):
         # Always use the tessdata path from the Dangerzone ./share directory, for
         # development builds, or in Windows/macOS platforms.
-        return pathlib.Path(get_resource_path("tessdata"))
+        return get_resource_path("tessdata")
 
     # In case of Linux systems, grab the Tesseract data from any of the following
     # locations. We have found some of the locations through trial and error, whereas
@@ -55,11 +54,11 @@ def get_tessdata_dir() -> pathlib.Path:
     #
     # [1] https://tesseract-ocr.github.io/tessdoc/Installation.html
     tessdata_dirs = [
-        pathlib.Path("/usr/share/tessdata/"),  # on some Debian
+        Path("/usr/share/tessdata/"),  # on some Debian
-        pathlib.Path("/usr/share/tesseract/tessdata/"),  # on Fedora
+        Path("/usr/share/tesseract/tessdata/"),  # on Fedora
-        pathlib.Path("/usr/share/tesseract-ocr/tessdata/"),  # ? (documented)
+        Path("/usr/share/tesseract-ocr/tessdata/"),  # ? (documented)
-        pathlib.Path("/usr/share/tesseract-ocr/4.00/tessdata/"),  # on Debian Bullseye
+        Path("/usr/share/tesseract-ocr/4.00/tessdata/"),  # on Debian Bullseye
-        pathlib.Path("/usr/share/tesseract-ocr/5/tessdata/"),  # on Debian Trixie
+        Path("/usr/share/tesseract-ocr/5/tessdata/"),  # on Debian Trixie
     ]
 
     for dir in tessdata_dirs:
@@ -71,7 +70,7 @@ def get_tessdata_dir() -> pathlib.Path:
 
 def get_version() -> str:
     try:
-        with open(get_resource_path("version.txt")) as f:
+        with get_resource_path("version.txt").open() as f:
             version = f.read().strip()
     except FileNotFoundError:
         # In dev mode, in Windows, get_resource_path doesn't work properly for the container, but luckily

tests/isolation_provider/test_container.py

@@ -74,7 +74,7 @@ class TestContainer(IsolationProviderTest):
                 container_utils.get_runtime(),
                 "load",
                 "-i",
-                get_resource_path("container.tar"),
+                get_resource_path("container.tar").absolute(),
             ],
             returncode=-1,
         )
@@ -113,7 +113,7 @@ class TestContainer(IsolationProviderTest):
                 container_utils.get_runtime(),
                 "load",
                 "-i",
-                get_resource_path("container.tar"),
+                get_resource_path("container.tar").absolute(),
             ],
         )
         with pytest.raises(errors.ImageNotPresentException):

tests/test_util.py

@@ -11,7 +11,7 @@ VERSION_FILE_NAME = "version.txt"
 
 def test_get_resource_path() -> None:
     share_dir = Path("share").resolve()
-    resource_path = Path(util.get_resource_path(VERSION_FILE_NAME)).parent
+    resource_path = util.get_resource_path(VERSION_FILE_NAME).parent
     assert share_dir.samefile(resource_path), (
         f"{share_dir} is not the same file as {resource_path}"
     )