kami
b4646155b4
internal/email is the reading half of the email reader: a ~200-line IMAP client (LOGIN, EXAMINE, UID SEARCH SINCE, UID FETCH BODY.PEEK, LOGOUT), a MIME-to-plaintext converter, and a header-only junk filter. Two protocol choices are the design, not shortcuts. EXAMINE instead of SELECT means the session is read-only at the protocol level, so no command in it can flip a flag or expunge anything by mistake. BODY.PEEK instead of BODY means reading a message does not mark it \Seen — Maven reads his mail and leaves no trace of having done so, and the unread state in his own client stays his. Hand-rolled rather than go-imap because this is the one path that holds his mailbox credential and reads his private mail: five commands with no dependencies is auditable in a sitting. No IDLE and no cleartext/STARTTLS either — an option to send his password over a plain socket is an option to get it wrong once. Junk is decided by headers alone, before any model is involved: List-Unsubscribe/List-Id, Precedence: bulk, Auto-Submitted, the spam headers, and Gmail's own category labels. Sender lists and subject keywords are deliberately absent — they age badly and they would put his contacts in a config file. A junk verdict only means "do not spend the model on this"; nothing is deleted and no server flag is touched. Nothing here logs a body, a subject or an address, the junk reason names a header rather than content, and an undecodable charset degrades to headers-only instead of feeding the model mojibake. Verified against recorded .eml fixtures and an in-process fake IMAP server.
27 lines
613 B
Plaintext
27 lines
613 B
Plaintext
From: hr@work.example
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To: kami@example.org
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Subject: Contract
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Date: Fri, 01 Aug 2026 07:00:00 +0400
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MIME-Version: 1.0
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Content-Type: multipart/mixed; boundary="M1"
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--M1
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Content-Type: multipart/alternative; boundary="A1"
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--A1
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Content-Type: text/plain; charset="utf-8"
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Sign the contract before Monday.
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--A1
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Content-Type: text/html; charset="utf-8"
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<p>Sign the contract before Monday.</p>
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--A1--
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--M1
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Content-Type: application/pdf; name="contract.pdf"
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Content-Disposition: attachment; filename="contract.pdf"
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Content-Transfer-Encoding: base64
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JVBERi0xLjQgbm90IHJlYWxseSBhIHBkZg==
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--M1--
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