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43 lines
1.7 KiB
Python
43 lines
1.7 KiB
Python
"""routes.email_helpers._decode_header must not inject spaces between parts.
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email.header.decode_header returns plain-text runs WITH their surrounding
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whitespace (e.g. (b"Re: ", None)), so joining the parts with " " produced a
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double space after "Re:" on every non-ASCII subject, a spurious space in
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"Name <addr>" senders, and violated RFC 2047 6.2, which requires the
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whitespace between two adjacent encoded-words to be dropped. The corruption
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surfaced on the inbox list, message read, search, and the background pollers.
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The sibling mcp_servers.email_server._decode_header was already fixed for this
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(see tests/test_mcp_email_decode_header_spaces.py); these pin the same contract
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for the routes.email_helpers copy.
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"""
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import os
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import tempfile
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from pathlib import Path
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_tmp_data = Path(tempfile.mkdtemp(prefix="odysseus_decode_hdr_spaces_"))
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os.environ.setdefault("DATA_DIR", str(_tmp_data))
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os.environ.setdefault("DATABASE_URL", f"sqlite:///{_tmp_data / 'app.db'}")
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from routes.email_helpers import _decode_header
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def test_prefix_then_encoded_word_single_space():
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# "Re: " (plain text, trailing space) followed by an encoded word must
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# keep exactly one space -- the old " ".join produced "Re: Jose".
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assert _decode_header("Re: =?utf-8?b?SsOzc2U=?=") == "Re: Jóse"
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def test_encoded_word_then_plain_text_single_space():
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assert _decode_header("=?utf-8?b?SsOzc2U=?= Smith") == "Jóse Smith"
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def test_adjacent_encoded_words_join_without_space():
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# RFC 2047 6.2: whitespace between two adjacent encoded-words is dropped.
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out = _decode_header("=?iso-8859-1?q?Caf=E9?= =?utf-8?b?5pel5pys?=")
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assert out == "Café日本"
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def test_plain_ascii_header_unchanged():
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assert _decode_header("Weekly report") == "Weekly report"
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