mix
83c488cc48
A page per delivery (`/deliveries/{id}`), reached from the *Details* link on
Added:
- A page per delivery (`/deliveries/{id}`), reached from the *Details* link on
- A **DNS** badge in the domain list, one per row, carrying the same
- Machine metrics on the status page: a **Machine** card reporting the
- An index of the current page's own sections in the navigation column, for the
Changed:
- Every panel page is laid out in one column of the same width, so moving
- The mark's small-size variant — the tab icon and the `SP` initials it
- The stamp's `SELF-HOSTED SMTP RELAY` line is set at 11.5/0.15 instead of
- The delivery log lists what identifies a message and nothing else: time,
- Subjects are decoded for display as well as on the way in, so the rows the
… (4 more in CHANGELOG)
Full detail: CHANGELOG.md (0.6.0).
39 lines
1.6 KiB
Go
39 lines
1.6 KiB
Go
// Package mailhdr turns raw mail header values into display text. It sits
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// between the journal-milter, which reads headers off the wire, and the panel,
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// which shows them: both need the same answer for the same header, and the
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// panel needs it for rows the milter wrote before this decoding existed.
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package mailhdr
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import (
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"mime"
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"strings"
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)
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// SubjectMaxRunes caps what the journal keeps of a subject. A Subject header
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// may legally run to hundreds of characters; the log only needs enough to
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// recognise the message, and the panel shows one row per recipient.
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const SubjectMaxRunes = 200
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// DecodeSubject turns a raw Subject header into display text. Anything
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// non-ASCII arrives as RFC 2047 encoded-words (=?utf-8?Q?=D0=9F…?=), which the
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// panel would otherwise show verbatim: unreadable, and — being one unbreakable
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// run — wide enough to push the send-log table out of its card. Go's decoder
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// covers the UTF-8 and ASCII charsets senders use in practice; for anything
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// else (windows-1251, koi8-r) it fails and the raw header is kept, which is no
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// worse than not decoding at all. Truncation is applied after decoding so the
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// cap counts characters of the subject, not bytes of its encoding.
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//
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// It is idempotent: already-decoded text contains no encoded-words, so a second
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// pass returns it unchanged. That is what lets the panel decode on the way out
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// as well as the milter on the way in.
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func DecodeSubject(v string) string {
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if dec, err := (&mime.WordDecoder{}).DecodeHeader(v); err == nil {
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v = dec
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}
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v = strings.TrimSpace(v)
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if r := []rune(v); len(r) > SubjectMaxRunes {
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v = string(r[:SubjectMaxRunes]) + "…"
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}
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return v
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}
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