mirror of
https://github.com/Sea-Haven-Industries/open-swe.git
synced 2026-09-30 12:43:16 +00:00
33 lines
1.1 KiB
Python
33 lines
1.1 KiB
Python
|
"""Escaping for untrusted text embedded in XML-wrapped prompt data blocks."""
|
||
|
|
|
||
|
|
from __future__ import annotations
|
||
|
|
|
||
|
|
import re
|
||
|
|
|
||
|
|
# Closing tags of every XML wrapper used for untrusted data blocks across the
|
||
|
|
# reviewer prompt and webhook-built run prompts. XML tolerates whitespace
|
||
|
|
# around the tag name (e.g. `</body >`, `</ body\n>`), so a literal
|
||
|
|
# `.replace()` of the canonical spelling alone is insufficient — we match each
|
||
|
|
# end tag whitespace-tolerantly and rewrite it to an inert, human-readable
|
||
|
|
# form. A shared superset is safe: escaping a closing tag that a given block
|
||
|
|
# doesn't use only neutralizes attacker-controlled text.
|
||
|
|
DATA_BLOCK_WRAPPER_TAGS = (
|
||
|
|
"pr_review_threads",
|
||
|
|
"thread",
|
||
|
|
"comment",
|
||
|
|
"body",
|
||
|
|
"pr_overview",
|
||
|
|
"title",
|
||
|
|
"finding_reply",
|
||
|
|
"requester_instructions",
|
||
|
|
)
|
||
|
|
_CLOSING_TAG_RE = re.compile(
|
||
|
|
r"</\s*(" + "|".join(DATA_BLOCK_WRAPPER_TAGS) + r")\s*>",
|
||
|
|
re.IGNORECASE,
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def escape_for_data_block(text: str) -> str:
|
||
|
|
"""Neutralize closing tags so an attacker-controlled body can't break out."""
|
||
|
|
return _CLOSING_TAG_RE.sub(lambda m: f"</{m.group(1).lower()}_>", text)
|