From fcc6f3eb4ca92dc174811a422a435a187244639e Mon Sep 17 00:00:00 2001 From: nemunaire Date: Sun, 29 Mar 2026 14:27:46 +0200 Subject: [PATCH] Initial commit Co-Authored-By: Claude Sonnet 4.6 --- LICENSE | 21 ++++ go.mod | 32 +++++ go.sum | 56 +++++++++ item.go | 50 ++++++++ main.go | 16 +++ message.go | 339 +++++++++++++++++++++++++++++++++++++++++++++++++++++ model.go | 266 +++++++++++++++++++++++++++++++++++++++++ msgs.go | 63 ++++++++++ queue.go | 144 +++++++++++++++++++++++ styles.go | 15 +++ 10 files changed, 1002 insertions(+) create mode 100644 LICENSE create mode 100644 go.mod create mode 100644 go.sum create mode 100644 item.go create mode 100644 main.go create mode 100644 message.go create mode 100644 model.go create mode 100644 msgs.go create mode 100644 queue.go create mode 100644 styles.go diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f219545 --- /dev/null +++ b/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2026 nemunaire + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..fd258ae --- /dev/null +++ b/go.mod @@ -0,0 +1,32 @@ +module github.com/nemunaire/mqv + +go 1.25.8 + +require ( + github.com/atotto/clipboard v0.1.4 // indirect + github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect + github.com/charmbracelet/bubbles v1.0.0 // indirect + github.com/charmbracelet/bubbletea v1.3.10 // indirect + github.com/charmbracelet/colorprofile v0.4.1 // indirect + github.com/charmbracelet/harmonica v0.2.0 // indirect + github.com/charmbracelet/lipgloss v1.1.0 // indirect + github.com/charmbracelet/x/ansi v0.11.6 // indirect + github.com/charmbracelet/x/cellbuf v0.0.15 // indirect + github.com/charmbracelet/x/term v0.2.2 // indirect + github.com/clipperhouse/displaywidth v0.9.0 // indirect + github.com/clipperhouse/stringish v0.1.1 // indirect + github.com/clipperhouse/uax29/v2 v2.5.0 // indirect + github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect + github.com/lucasb-eyer/go-colorful v1.3.0 // indirect + github.com/mattn/go-isatty v0.0.20 // indirect + github.com/mattn/go-localereader v0.0.1 // indirect + github.com/mattn/go-runewidth v0.0.19 // indirect + github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect + github.com/muesli/cancelreader v0.2.2 // indirect + github.com/muesli/termenv v0.16.0 // indirect + github.com/rivo/uniseg v0.4.7 // indirect + github.com/sahilm/fuzzy v0.1.1 // indirect + github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect + golang.org/x/sys v0.38.0 // indirect + golang.org/x/text v0.35.0 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..78adf78 --- /dev/null +++ b/go.sum @@ -0,0 +1,56 @@ +github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4= +github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI= +github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k= +github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8= +github.com/charmbracelet/bubbles v1.0.0 h1:12J8/ak/uCZEMQ6KU7pcfwceyjLlWsDLAxB5fXonfvc= +github.com/charmbracelet/bubbles v1.0.0/go.mod h1:9d/Zd5GdnauMI5ivUIVisuEm3ave1XwXtD1ckyV6r3E= +github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw= +github.com/charmbracelet/bubbletea v1.3.10/go.mod h1:ORQfo0fk8U+po9VaNvnV95UPWA1BitP1E0N6xJPlHr4= +github.com/charmbracelet/colorprofile v0.4.1 h1:a1lO03qTrSIRaK8c3JRxJDZOvhvIeSco3ej+ngLk1kk= +github.com/charmbracelet/colorprofile v0.4.1/go.mod h1:U1d9Dljmdf9DLegaJ0nGZNJvoXAhayhmidOdcBwAvKk= +github.com/charmbracelet/harmonica v0.2.0 h1:8NxJWRWg/bzKqqEaaeFNipOu77YR5t8aSwG4pgaUBiQ= +github.com/charmbracelet/harmonica v0.2.0/go.mod h1:KSri/1RMQOZLbw7AHqgcBycp8pgJnQMYYT8QZRqZ1Ao= +github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY= +github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30= +github.com/charmbracelet/x/ansi v0.11.6 h1:GhV21SiDz/45W9AnV2R61xZMRri5NlLnl6CVF7ihZW8= +github.com/charmbracelet/x/ansi v0.11.6/go.mod h1:2JNYLgQUsyqaiLovhU2Rv/pb8r6ydXKS3NIttu3VGZQ= +github.com/charmbracelet/x/cellbuf v0.0.15 h1:ur3pZy0o6z/R7EylET877CBxaiE1Sp1GMxoFPAIztPI= +github.com/charmbracelet/x/cellbuf v0.0.15/go.mod h1:J1YVbR7MUuEGIFPCaaZ96KDl5NoS0DAWkskup+mOY+Q= +github.com/charmbracelet/x/term v0.2.2 h1:xVRT/S2ZcKdhhOuSP4t5cLi5o+JxklsoEObBSgfgZRk= +github.com/charmbracelet/x/term v0.2.2/go.mod h1:kF8CY5RddLWrsgVwpw4kAa6TESp6EB5y3uxGLeCqzAI= +github.com/clipperhouse/displaywidth v0.9.0 h1:Qb4KOhYwRiN3viMv1v/3cTBlz3AcAZX3+y9OLhMtAtA= +github.com/clipperhouse/displaywidth v0.9.0/go.mod h1:aCAAqTlh4GIVkhQnJpbL0T/WfcrJXHcj8C0yjYcjOZA= +github.com/clipperhouse/stringish v0.1.1 h1:+NSqMOr3GR6k1FdRhhnXrLfztGzuG+VuFDfatpWHKCs= +github.com/clipperhouse/stringish v0.1.1/go.mod h1:v/WhFtE1q0ovMta2+m+UbpZ+2/HEXNWYXQgCt4hdOzA= +github.com/clipperhouse/uax29/v2 v2.5.0 h1:x7T0T4eTHDONxFJsL94uKNKPHrclyFI0lm7+w94cO8U= +github.com/clipperhouse/uax29/v2 v2.5.0/go.mod h1:Wn1g7MK6OoeDT0vL+Q0SQLDz/KpfsVRgg6W7ihQeh4g= +github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4= +github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM= +github.com/lucasb-eyer/go-colorful v1.3.0 h1:2/yBRLdWBZKrf7gB40FoiKfAWYQ0lqNcbuQwVHXptag= +github.com/lucasb-eyer/go-colorful v1.3.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0= +github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY= +github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y= +github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4= +github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+EiG4R1k4Cjx5p88= +github.com/mattn/go-runewidth v0.0.19 h1:v++JhqYnZuu5jSKrk9RbgF5v4CGUjqRfBm05byFGLdw= +github.com/mattn/go-runewidth v0.0.19/go.mod h1:XBkDxAl56ILZc9knddidhrOlY5R/pDhgLpndooCuJAs= +github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 h1:ZK8zHtRHOkbHy6Mmr5D264iyp3TiX5OmNcI5cIARiQI= +github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6/go.mod h1:CJlz5H+gyd6CUWT45Oy4q24RdLyn7Md9Vj2/ldJBSIo= +github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA= +github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo= +github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc= +github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk= +github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ= +github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88= +github.com/sahilm/fuzzy v0.1.1 h1:ceu5RHF8DGgoi+/dR5PsECjCDH1BE3Fnmpo7aVXOdRA= +github.com/sahilm/fuzzy v0.1.1/go.mod h1:VFvziUEIMCrT6A6tw2RFIXPXXmzXbOsSHF0DOI8ZK9Y= +github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no= +github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM= +golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc= +golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks= +golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY= +golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ= +golang.org/x/text v0.35.0 h1:JOVx6vVDFokkpaq1AEptVzLTpDe9KGpj5tR4/X+ybL8= +golang.org/x/text v0.35.0/go.mod h1:khi/HExzZJ2pGnjenulevKNX1W67CUy0AsXcNubPGCA= diff --git a/item.go b/item.go new file mode 100644 index 0000000..b2788bc --- /dev/null +++ b/item.go @@ -0,0 +1,50 @@ +package main + +import ( + "fmt" + "io" + + "github.com/charmbracelet/bubbles/list" + tea "github.com/charmbracelet/bubbletea" +) + +type queueItem struct { + entry QueueEntry +} + +func (q queueItem) FilterValue() string { return q.entry.Sender + " " + q.entry.Subject } +func (q queueItem) Title() string { return q.entry.Subject } +func (q queueItem) Description() string { + return fmt.Sprintf("%-40s %s", q.entry.Sender, q.entry.Date.Format("Jan 02 15:04")) +} + +// itemDelegate renders each queue entry as a single line. +type itemDelegate struct{} + +func (d itemDelegate) Height() int { return 1 } +func (d itemDelegate) Spacing() int { return 0 } +func (d itemDelegate) Update(_ tea.Msg, _ *list.Model) tea.Cmd { return nil } +func (d itemDelegate) Render(w io.Writer, m list.Model, index int, item list.Item) { + qi, ok := item.(queueItem) + if !ok { + return + } + e := qi.entry + date := e.Date.Format("Jan _2 15:04") + from := e.Sender + if len(from) > 30 { + from = from[:28] + ".." + } + subj := e.Subject + if subj == "" { + subj = dimStyle.Render("loading…") + } + + line := fmt.Sprintf(" %-10s %-14s %-30s %s", e.ID, date, from, subj) + + if index == m.Index() { + fmt.Fprint(w, selectedStyle.Render(line)) + } else { + fmt.Fprint(w, line) + } +} diff --git a/main.go b/main.go new file mode 100644 index 0000000..b073e28 --- /dev/null +++ b/main.go @@ -0,0 +1,16 @@ +package main + +import ( + "fmt" + "os" + + tea "github.com/charmbracelet/bubbletea" +) + +func main() { + p := tea.NewProgram(initialModel(), tea.WithAltScreen()) + if _, err := p.Run(); err != nil { + fmt.Fprintln(os.Stderr, "error:", err) + os.Exit(1) + } +} diff --git a/message.go b/message.go new file mode 100644 index 0000000..22b56ad --- /dev/null +++ b/message.go @@ -0,0 +1,339 @@ +package main + +import ( + "encoding/base64" + "fmt" + "io" + "mime" + "mime/multipart" + "mime/quotedprintable" + "net/mail" + "os" + "os/exec" + "path/filepath" + "sort" + "strings" + + "golang.org/x/text/encoding/charmap" + "golang.org/x/text/encoding/ianaindex" +) + +var wordDecoder = &mime.WordDecoder{ + CharsetReader: func(charset string, input io.Reader) (io.Reader, error) { + // Fast path for the most common legacy charsets + switch strings.ToLower(charset) { + case "iso-8859-1", "latin-1": + return charmap.ISO8859_1.NewDecoder().Reader(input), nil + case "windows-1252", "cp1252": + return charmap.Windows1252.NewDecoder().Reader(input), nil + } + // Fall back to IANA index for everything else + enc, err := ianaindex.MIME.Encoding(charset) + if err != nil { + return nil, fmt.Errorf("unsupported charset %q: %w", charset, err) + } + return enc.NewDecoder().Reader(input), nil + }, +} + +// fetchHeaders runs postcat -qh and returns only the headers. +func fetchHeaders(id string) (string, error) { + out, err := exec.Command("postcat", "-qh", id).Output() + if err != nil { + return "", fmt.Errorf("postcat -qh %s: %w", id, err) + } + return string(out), nil +} + +// fetchMessage runs postcat -qbh and returns the raw EML content. +func fetchMessage(id string) (string, error) { + out, err := exec.Command("postcat", "-qbh", id).Output() + if err != nil { + return "", fmt.Errorf("postcat -qbh %s: %w", id, err) + } + return string(out), nil +} + +// extractSubject scans raw EML output for the Subject field and decodes it. +// It handles folded headers (RFC 2822 continuation lines) and RFC 2047 encoded words. +// We do not stop at blank lines because postcat output may include envelope records +// separated from the RFC 2822 headers by a blank line. +func extractSubject(raw string) string { + lines := strings.Split(raw, "\n") + for i, line := range lines { + if !strings.HasPrefix(strings.ToLower(line), "subject:") { + continue + } + value := line[len("subject:"):] + // Collect folded continuation lines (start with whitespace) + for j := i + 1; j < len(lines); j++ { + if len(lines[j]) > 0 && (lines[j][0] == ' ' || lines[j][0] == '\t') { + value += " " + strings.TrimSpace(lines[j]) + } else { + break + } + } + value = strings.TrimSpace(value) + if decoded, err := wordDecoder.DecodeHeader(value); err == nil { + return decoded + } + return value + } + return "(no subject)" +} + +// renderMessage parses raw EML and returns a human-readable string suitable +// for display in the viewport. Headers are RFC 2047 decoded, and the body is +// decoded from quoted-printable or base64 transfer encoding. +// When fullHeaders is true all headers are shown (sorted); otherwise only the +// curated subset (Date, From, To, Cc, Reply-To, Subject) is displayed. +func renderMessage(raw string, fullHeaders bool) string { + msg, err := mail.ReadMessage(strings.NewReader(raw)) + if err != nil { + // postcat may prefix envelope lines before RFC 2822 headers; fall back. + return raw + } + + var sb strings.Builder + + if fullHeaders { + names := make([]string, 0, len(msg.Header)) + for name := range msg.Header { + names = append(names, name) + } + sort.Strings(names) + for _, name := range names { + for _, val := range msg.Header[name] { + decoded, err := wordDecoder.DecodeHeader(val) + if err != nil { + decoded = val + } + sb.WriteString(name) + sb.WriteString(": ") + sb.WriteString(decoded) + sb.WriteByte('\n') + } + } + } else { + for _, name := range []string{"Date", "From", "To", "Cc", "Reply-To", "Subject"} { + val := msg.Header.Get(name) + if val == "" { + continue + } + decoded, err := wordDecoder.DecodeHeader(val) + if err != nil { + decoded = val + } + sb.WriteString(headerKeyStyle.Render(name + ":")) + sb.WriteString(" ") + sb.WriteString(decoded) + sb.WriteByte('\n') + } + } + sb.WriteByte('\n') + + // Decode and write the body. + ct := msg.Header.Get("Content-Type") + cte := strings.ToLower(strings.TrimSpace(msg.Header.Get("Content-Transfer-Encoding"))) + cd := msg.Header.Get("Content-Disposition") + body := renderPart(ct, cte, cd, msg.Body) + sb.WriteString(body) + + return sb.String() +} + +// renderPart decodes a single MIME part (or the top-level message body) given +// its Content-Type, Content-Transfer-Encoding, and Content-Disposition header values. +func renderPart(ct, cte, cd string, r io.Reader) string { + mediaType, params, err := mime.ParseMediaType(ct) + if err != nil { + mediaType = "text/plain" + params = map[string]string{} + } + + // Decode transfer encoding first. + var decoded io.Reader + switch cte { + case "quoted-printable": + decoded = quotedprintable.NewReader(r) + case "base64": + decoded = base64.NewDecoder(base64.StdEncoding, r) + default: + decoded = r + } + + if strings.HasPrefix(mediaType, "multipart/") { + boundary := params["boundary"] + if boundary == "" { + return "[multipart message with missing boundary]\n" + } + return renderMultipart(multipart.NewReader(decoded, boundary), mediaType) + } + + // Non-text, non-multipart parts are binary attachments — show a placeholder. + if !strings.HasPrefix(mediaType, "text/") { + data, _ := io.ReadAll(decoded) + name := partName(params, cd) + size := len(data) + label := fmt.Sprintf("\n[ Content-Type: %s", mediaType) + if name != "" { + label += " - Filename: " + name + } + if size > 0 { + label += fmt.Sprintf(" - Size: %s", formatSize(size)) + } + label += " ]" + return attachStyle.Render(label) + "\n\n" + } + + // Decode charset for text parts. + if charset, ok := params["charset"]; ok && charset != "" { + if cr, err := wordDecoder.CharsetReader(charset, decoded); err == nil { + decoded = cr + } + } + + data, err := io.ReadAll(decoded) + if err != nil { + return fmt.Sprintf("[error reading body: %v]\n", err) + } + + if mediaType == "text/html" { + return renderHTML(string(data)) + } + return string(data) +} + +// partName extracts a filename/name from Content-Type params or Content-Disposition. +func partName(ctParams map[string]string, cd string) string { + if n := ctParams["name"]; n != "" { + if decoded, err := wordDecoder.DecodeHeader(n); err == nil { + return decoded + } + return n + } + if cd != "" { + if _, cdParams, err := mime.ParseMediaType(cd); err == nil { + if fn := cdParams["filename"]; fn != "" { + if decoded, err := wordDecoder.DecodeHeader(fn); err == nil { + return decoded + } + return fn + } + } + } + return "" +} + +// formatSize formats a byte count as a human-readable string. +func formatSize(n int) string { + switch { + case n >= 1024*1024: + return fmt.Sprintf("%.1f MB", float64(n)/(1024*1024)) + case n >= 1024: + return fmt.Sprintf("%.1f kB", float64(n)/1024) + default: + return fmt.Sprintf("%d B", n) + } +} + +// renderMultipart walks multipart parts, preferring text/plain. Nested +// multipart/* is handled recursively. Parts in mixed/related messages are +// separated by a colored rule. +func renderMultipart(mr *multipart.Reader, parentType string) string { + type candidate struct { + mediaType string + content string + } + var parts []candidate + + for { + p, err := mr.NextPart() + if err != nil { // io.EOF or real error + break + } + partCT := p.Header.Get("Content-Type") + partCTE := strings.ToLower(strings.TrimSpace(p.Header.Get("Content-Transfer-Encoding"))) + partCD := p.Header.Get("Content-Disposition") + text := renderPart(partCT, partCTE, partCD, p) + + mt, _, _ := mime.ParseMediaType(partCT) + parts = append(parts, candidate{mt, text}) + } + + if parentType == "multipart/alternative" { + // Prefer plain text. + for _, c := range parts { + if c.mediaType == "text/plain" { + return c.content + } + } + // Fall back to first non-empty part. + for _, c := range parts { + if strings.TrimSpace(c.content) != "" { + return c.content + } + } + return "" + } + + // For mixed/related/etc, join non-empty parts with a colored separator. + var sb strings.Builder + first := true + for _, c := range parts { + if strings.TrimSpace(c.content) == "" { + continue + } + if !first { + label := "\n── " + c.mediaType + " " + rule := label + strings.Repeat("─", max(0, 60-len(label))) + sb.WriteString(partSepStyle.Render(rule)) + sb.WriteByte('\n') + } + sb.WriteString(c.content) + if !strings.HasSuffix(c.content, "\n") { + sb.WriteByte('\n') + } + first = false + } + return sb.String() +} + +// renderHTML renders HTML content to plain text using w3m if available, +// otherwise returns the raw HTML. +func renderHTML(html string) string { + w3m, err := exec.LookPath("w3m") + if err != nil { + return html + } + + f, err := os.CreateTemp("", "postfixmutt-*.html") + if err != nil { + return html + } + defer os.Remove(f.Name()) + if _, err := f.WriteString(html); err != nil { + f.Close() + return html + } + f.Close() + + out, err := exec.Command(w3m, "-T", "text/html", "-dump", "-o", "display_link_number=1", f.Name()).Output() + if err != nil { + return html + } + return string(out) +} + +// saveMessage writes the raw EML content to ~/QUEUEID.eml. +func saveMessage(id, content string) (string, error) { + home, err := os.UserHomeDir() + if err != nil { + return "", fmt.Errorf("could not determine home directory: %w", err) + } + path := filepath.Join(home, id+".eml") + if err := os.WriteFile(path, []byte(content), 0600); err != nil { + return "", fmt.Errorf("write %s: %w", path, err) + } + return path, nil +} diff --git a/model.go b/model.go new file mode 100644 index 0000000..3d53409 --- /dev/null +++ b/model.go @@ -0,0 +1,266 @@ +package main + +import ( + "fmt" + "strings" + + "github.com/charmbracelet/bubbles/list" + "github.com/charmbracelet/bubbles/progress" + "github.com/charmbracelet/bubbles/viewport" + tea "github.com/charmbracelet/bubbletea" + "github.com/charmbracelet/x/ansi" +) + +// ── App state ───────────────────────────────────────────────────────────────── + +type appState int + +const ( + stateList appState = iota + stateMessage appState = iota +) + +// ── Model ───────────────────────────────────────────────────────────────────── + +type Model struct { + state appState + list list.Model + progress progress.Model + viewport viewport.Model + entries []QueueEntry + entryIndex map[string]int // queue ID → entries index + loadingTotal int + loadingDone int + currentRaw string + currentID string + showFullHeaders bool + err error + saveNotice string + width int + height int +} + +func initialModel() Model { + l := list.New(nil, itemDelegate{}, 80, 20) + l.Title = "Postfix Queue" + l.SetShowStatusBar(false) + l.SetFilteringEnabled(false) + l.Styles.Title = titleStyle + l.SetShowHelp(false) + + prog := progress.New( + progress.WithDefaultGradient(), + progress.WithoutPercentage(), + ) + + vp := viewport.New(80, 20) + + return Model{ + state: stateList, + list: l, + progress: prog, + viewport: vp, + } +} + +// refreshViewport re-renders the current message and sets wrapped content. +func (m *Model) refreshViewport() { + rendered := renderMessage(m.currentRaw, m.showFullHeaders) + headerSection, body, _ := strings.Cut(rendered, "\n\n") + + var result []string + for line := range strings.SplitSeq(headerSection, "\n") { + parts := strings.Split(ansi.Wrap(line, m.viewport.Width-4, ""), "\n") + result = append(result, parts[0]) + for _, continuation := range parts[1:] { + result = append(result, " "+continuation) + } + } + result = append(result, "") + result = append(result, strings.Split(ansi.Wrap(body, m.viewport.Width, ""), "\n")...) + m.viewport.SetContent(strings.Join(result, "\n")) +} + +// ── Init ────────────────────────────────────────────────────────────────────── + +func (m Model) Init() tea.Cmd { + return loadQueueCmd() +} + +// ── Update ──────────────────────────────────────────────────────────────────── + +func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) { + switch msg := msg.(type) { + + case tea.WindowSizeMsg: + m.width = msg.Width + m.height = msg.Height + m.progress.Width = msg.Width - 4 + m.list.SetSize(msg.Width, msg.Height-2) + m.viewport.Width = msg.Width + m.viewport.Height = msg.Height - 2 + if m.state == stateMessage && m.currentRaw != "" { + m.refreshViewport() + } + return m, nil + + case queueParsedMsg: + m.entries = msg.entries + m.entryIndex = make(map[string]int, len(msg.entries)) + m.loadingTotal = len(msg.entries) + m.loadingDone = 0 + m.err = nil + + items := make([]list.Item, len(msg.entries)) + for i, e := range msg.entries { + items[i] = queueItem{e} + m.entryIndex[e.ID] = i + } + m.list.SetItems(items) + + if m.loadingTotal == 0 { + return m, nil + } + cmds := make([]tea.Cmd, len(msg.entries)) + for i, e := range msg.entries { + cmds[i] = fetchSubjectCmd(e.ID) + } + return m, tea.Batch(cmds...) + + case subjectFetchedMsg: + if idx, ok := m.entryIndex[msg.id]; ok { + m.entries[idx].Subject = msg.subject + m.list.SetItem(idx, queueItem{m.entries[idx]}) + } + m.loadingDone++ + pct := float64(m.loadingDone) / float64(m.loadingTotal) + return m, m.progress.SetPercent(pct) + + case progress.FrameMsg: + pm, cmd := m.progress.Update(msg) + m.progress = pm.(progress.Model) + return m, cmd + + case queueErrMsg: + m.err = msg.err + return m, nil + + case messageLoadedMsg: + m.currentRaw = msg.content + m.currentID = msg.id + m.showFullHeaders = false + m.refreshViewport() + m.viewport.GotoTop() + m.state = stateMessage + return m, nil + + case messageErrMsg: + m.err = msg.err + return m, nil + + case savedMsg: + m.saveNotice = "Saved: " + msg.path + return m, nil + + case saveErrMsg: + m.saveNotice = "Save error: " + msg.err.Error() + return m, nil + + case tea.KeyMsg: + switch m.state { + + case stateList: + switch msg.String() { + case "q", "ctrl+c": + return m, tea.Quit + case "r": + m.entries = nil + m.entryIndex = nil + m.loadingTotal = 0 + m.loadingDone = 0 + m.list.SetItems(nil) + _ = m.progress.SetPercent(0) + return m, loadQueueCmd() + case "enter": + if item, ok := m.list.SelectedItem().(queueItem); ok { + return m, loadMessageCmd(item.entry.ID) + } + } + + case stateMessage: + switch msg.String() { + case "q": + m.state = stateList + m.saveNotice = "" + return m, nil + case "ctrl+c": + return m, tea.Quit + case "s": + return m, saveCmd(m.currentID, m.currentRaw) + case "H": + m.showFullHeaders = !m.showFullHeaders + m.refreshViewport() + m.viewport.GotoTop() + return m, nil + } + var cmd tea.Cmd + m.viewport, cmd = m.viewport.Update(msg) + return m, cmd + } + } + + var cmd tea.Cmd + switch m.state { + case stateList: + m.list, cmd = m.list.Update(msg) + case stateMessage: + m.viewport, cmd = m.viewport.Update(msg) + } + return m, cmd +} + +// ── View ────────────────────────────────────────────────────────────────────── + +func (m Model) View() string { + if m.err != nil { + return errorStyle.Render("Error: "+m.err.Error()) + "\n\nPress q to quit." + } + + switch m.state { + + case stateList: + if m.entries == nil { + return titleStyle.Render("Postfix Queue") + "\n\n" + + dimStyle.Render(" Fetching queue list…") + } + return m.list.View() + "\n" + m.renderBottom() + + case stateMessage: + header := titleStyle.Render(fmt.Sprintf("Message: %s", m.currentID)) + scrollPct := int(m.viewport.ScrollPercent() * 100) + headersHint := "H: full headers" + if m.showFullHeaders { + headersHint = "H: short headers" + } + status := statusBarStyle.Render( + fmt.Sprintf(" ↑↓/SPC/PgUp/Dn: scroll │ s: save EML │ %s │ q: back │ %d%% ", headersHint, scrollPct), + ) + notice := "" + if m.saveNotice != "" { + notice = "\n" + saveNoticeStyle.Render(m.saveNotice) + } + return header + "\n" + m.viewport.View() + "\n" + status + notice + } + + return "" +} + +func (m Model) renderBottom() string { + if m.loadingDone < m.loadingTotal { + label := fmt.Sprintf(" Fetching subjects: %d / %d ", m.loadingDone, m.loadingTotal) + return dimStyle.Render(label) + "\n " + m.progress.View() + } + return statusBarStyle.Render( + fmt.Sprintf(" %d message(s) │ Enter: open │ r: refresh │ q: quit ", len(m.list.Items())), + ) +} diff --git a/msgs.go b/msgs.go new file mode 100644 index 0000000..c0b6e73 --- /dev/null +++ b/msgs.go @@ -0,0 +1,63 @@ +package main + +import ( + tea "github.com/charmbracelet/bubbletea" +) + +// ── Tea message types ───────────────────────────────────────────────────────── + +type queueParsedMsg struct{ entries []QueueEntry } // phase 1: structure only +type subjectFetchedMsg struct { // phase 2: one per entry + id string + subject string +} +type queueErrMsg struct{ err error } +type messageLoadedMsg struct { + id string + content string +} +type messageErrMsg struct{ err error } +type savedMsg struct{ path string } +type saveErrMsg struct{ err error } + +// ── Tea commands ────────────────────────────────────────────────────────────── + +func loadQueueCmd() tea.Cmd { + return func() tea.Msg { + entries, err := loadQueue() + if err != nil { + return queueErrMsg{err} + } + return queueParsedMsg{entries} + } +} + +func fetchSubjectCmd(id string) tea.Cmd { + return func() tea.Msg { + raw, err := fetchHeaders(id) + if err != nil { + return subjectFetchedMsg{id: id, subject: "(error)"} + } + return subjectFetchedMsg{id: id, subject: extractSubject(raw)} + } +} + +func loadMessageCmd(id string) tea.Cmd { + return func() tea.Msg { + content, err := fetchMessage(id) + if err != nil { + return messageErrMsg{err} + } + return messageLoadedMsg{id: id, content: content} + } +} + +func saveCmd(id, content string) tea.Cmd { + return func() tea.Msg { + path, err := saveMessage(id, content) + if err != nil { + return saveErrMsg{err} + } + return savedMsg{path} + } +} diff --git a/queue.go b/queue.go new file mode 100644 index 0000000..ed14d3d --- /dev/null +++ b/queue.go @@ -0,0 +1,144 @@ +package main + +import ( + "bufio" + "fmt" + "os/exec" + "sort" + "strings" + "time" +) + +type QueueEntry struct { + ID string + Size int + Date time.Time + Sender string + Subject string + Rcpts []string + Reason string +} + +func loadQueue() ([]QueueEntry, error) { + out, err := exec.Command("postqueue", "-p").Output() + if err != nil { + return nil, fmt.Errorf("postqueue -p: %w", err) + } + entries := parsePostqueue(string(out)) + sort.Slice(entries, func(i, j int) bool { + return entries[i].Date.After(entries[j].Date) + }) + return entries, nil +} + +// parsePostqueue parses the output of `postqueue -p`. +// Each message block is separated by a blank line. +// Format of first line of a block: +// +// QUEUEID[*!]? SIZE DOW MON DD HH:MM:SS SENDER +func parsePostqueue(output string) []QueueEntry { + var entries []QueueEntry + + scanner := bufio.NewScanner(strings.NewReader(output)) + + // Skip header line + for scanner.Scan() { + if strings.HasPrefix(scanner.Text(), "-Queue ID-") { + break + } + } + + var current *QueueEntry + for scanner.Scan() { + line := scanner.Text() + + if line == "" { + if current != nil { + entries = append(entries, *current) + current = nil + } + continue + } + + // Lines starting with a space are reason or recipient lines + if strings.HasPrefix(line, " ") || strings.HasPrefix(line, "\t") { + if current == nil { + continue + } + trimmed := strings.TrimSpace(line) + if strings.HasPrefix(trimmed, "(") { + current.Reason = strings.Trim(trimmed, "()") + } else if trimmed != "" { + current.Rcpts = append(current.Rcpts, trimmed) + } + continue + } + + // Deferral/error reason line (not indented, starts with '(') + if strings.HasPrefix(line, "(") { + if current != nil { + current.Reason = strings.Trim(line, "()") + } + continue + } + + // Skip summary line at the end (e.g. "-- 2 Kbytes in 1 Request.") + if strings.HasPrefix(line, "--") { + if current != nil { + entries = append(entries, *current) + current = nil + } + break + } + + // New message block: parse the header line + entry := parseQueueLine(line) + if entry != nil { + current = entry + } + } + + if current != nil { + entries = append(entries, *current) + } + + return entries +} + +// parseQueueLine parses a line like: +// ABC1234* 1234 Sun Mar 29 10:00:00 sender@example.com +func parseQueueLine(line string) *QueueEntry { + fields := strings.Fields(line) + // Minimum: ID, size, weekday, month, day, time, sender + if len(fields) < 7 { + return nil + } + + id := fields[0] + // Strip trailing status character (* or !) + id = strings.TrimRight(id, "*!") + + var size int + fmt.Sscanf(fields[1], "%d", &size) + + // Date: fields[2] = weekday, [3] = month, [4] = day, [5] = HH:MM:SS + // Use current year as postqueue doesn't show year + dateStr := fmt.Sprintf("%s %s %s %s %d", + fields[2], fields[3], fields[4], fields[5], time.Now().Year()) + t, err := time.Parse(time.ANSIC, dateStr) + if err != nil { + t = time.Time{} + } + + sender := "" + if len(fields) >= 7 { + sender = fields[6] + } + + return &QueueEntry{ + ID: id, + Size: size, + Date: t, + Sender: sender, + } +} diff --git a/styles.go b/styles.go new file mode 100644 index 0000000..c748b33 --- /dev/null +++ b/styles.go @@ -0,0 +1,15 @@ +package main + +import "github.com/charmbracelet/lipgloss" + +var ( + titleStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("33")) + selectedStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("212")) + dimStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("240")) + statusBarStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("241")).Reverse(true).Padding(0, 1) + errorStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("196")).Bold(true) + saveNoticeStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("82")) + partSepStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("240")) + attachStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("214")) + headerKeyStyle = lipgloss.NewStyle().Bold(true) +)