Allow to upload file and download from given link

1 files changed, 19 insertions, 0 deletions

diff --git a/src/utils.py b/src/utils.py
new file mode 100644
index 0000000..ccf92c0
--- /dev/null
+++ b/src/utils.py
@@ -0,0 +1,19 @@
+import io
+
+def transfer(reader, writer, content_length = None, buffer_size = io.DEFAULT_BUFFER_SIZE):
+    if content_length is None:
+        while (data := reader.read(buffer_size)):
+            writer.write(data)
+    else:
+        remaining = content_length
+        while remaining > 0:
+            size = min(buffer_size, remaining)
+            writer.write(reader.read(size))
+            remaining -= size
+
+def sanitize_filename(s: str) -> str:
+    return '.'.join([sanitize_filename_part(p) for p in s.split('.')])
+
+def sanitize_filename_part(s: str) -> str:
+    alnum_or_space = ''.join([c if c.isalnum() else ' ' for c in s])
+    return '-'.join(alnum_or_space.split())