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Issue #18167: cgi.FieldStorage no more fails to handle multipart/form-data

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when \r\n appears at end of 65535 bytes without other newlines.
This commit is contained in:
Serhiy Storchaka 2013-06-17 16:36:20 +03:00
commit 774bed7e60
3 changed files with 35 additions and 0 deletions
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9
Lib/cgi.py
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@ -786,6 +786,9 @@ class FieldStorage:
if not line:
self.done = -1
break
if delim == b"\r":
line = delim + line
delim = b""
if line.startswith(b"--") and last_line_lfend:
strippedline = line.rstrip()
if strippedline == next_boundary:
@ -802,6 +805,12 @@ class FieldStorage:
delim = b"\n"
line = line[:-1]
last_line_lfend = True
elif line.endswith(b"\r"):
# We may interrupt \r\n sequences if they span the 2**16
# byte boundary
delim = b"\r"
line = line[:-1]
last_line_lfend = False
else:
delim = b""
last_line_lfend = False