1 files changed, 10 insertions, 0 deletions
diff --git a/check/app/utils/file_utils.py b/check/app/utils/file_utils.py
index 1ed1833..a185cf4 100644
--- a/check/app/utils/file_utils.py
+++ b/check/app/utils/file_utils.py
@@ -352,6 +352,16 @@ def sha256(fp_in, block_size=65536):
       sha256.update(block)
   return sha256.hexdigest()
 
+def sha256_stream(stream, block_size=65536):
+  """Generates SHA256 hash for a file stream (from Flask)
+  :param fp_in: (FileStream) stream object
+  :param block_size: (int) byte size of block
+  :returns: (str) hash
+  """
+  sha256 = hashlib.sha256()
+  for block in iter(lambda: stream.read(block_size), b''):
+    sha256.update(block)
+  return sha256.hexdigest()
 
 def sha256_tree(sha256):
   """Split hash into branches with tree-depth for faster file indexing