fix: allow space within file name

Author: Jerakin

src/wikmd/utils.py

@@ -1,5 +1,38 @@
 import os
+import unicodedata
 
+_windows_device_files = {
+    "CON",
+    "PRN",
+    "AUX",
+    "NUL",
+    *(f"COM{i}" for i in range(10)),
+    *(f"LPT{i}" for i in range(10)),
+}
+
+
+def secure_filename(filename: str) -> str:
+    """Convert your filename to be safe for the os.
+
+    Function from werkzeug. Changed to allow space in the file name.
+    """
+    filename = unicodedata.normalize("NFKD", filename)
+    filename = filename.encode("ascii", "ignore").decode("ascii")
+    for sep in os.sep, os.path.altsep:
+        if sep:
+            filename = filename.replace(sep, "_")
+    filename = filename.strip("._")
+    # on nt a couple of special files are present in each folder.  We
+    # have to ensure that the target file is not such a filename.  In
+    # this case we prepend an underline
+    if (
+        os.name == "nt"
+        and filename
+        and filename.split(".")[0].upper() in _windows_device_files
+    ):
+        filename = f"_{filename}"
+
+    return filename
 
 def pathify(path1, path2):
     """

src/wikmd/wiki.py

@@ -22,15 +22,15 @@
     url_for,
 )
 from lxml.html.clean import clean_html
-from werkzeug.utils import safe_join, secure_filename
+from werkzeug.utils import safe_join
 from wikmd import knowledge_graph
 from wikmd.cache import Cache
 from wikmd.config import WikmdConfig
 from wikmd.git_manager import WikiRepoManager
 from wikmd.image_manager import ImageManager
 from wikmd.plugins.load_plugins import PluginLoader
 from wikmd.search import Search, Watchdog
-from wikmd.utils import pathify
+from wikmd.utils import pathify, secure_filename
 from wikmd.web_dependencies import get_web_deps
 
 SESSIONS = []