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Load messages from selected source folder

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This commit is contained in:
DonVoo 2026-07-13 03:06:11 +02:00
parent 737343b66b
commit 2f337ee200
1 changed files with 105 additions and 2 deletions
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107
backend/00-router.go
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@ -1,11 +1,13 @@
package backend
import (
"bytes"
"database/sql"
"errors"
"fmt"
"html"
"net/http"
"net/mail"
"net/url"
"os"
"path/filepath"
@ -39,6 +41,8 @@ func RegisterRoutes(mux *http.ServeMux) {
mux.HandleFunc("/transfer", transferHandler)
mux.HandleFunc("/transfer/", transferHandler)
mux.HandleFunc("/boxes/source", emailBoxHandler)
mux.HandleFunc("/boxes/source/messages", sourceMailboxMessagesHandler)
mux.HandleFunc("/boxes/source/message", sourceMailboxMessageHandler)
mux.HandleFunc("/boxes/target", emailBoxHandler)
mux.HandleFunc("/migrate/run", migrateRunHandler) // TODO Codex: RunMigration im Hintergrund
mux.HandleFunc("/migrate/status", migrateStatusHandler) // TODO Codex: jobs-Fortschritt (HTMX-Poll)
@ -314,6 +318,63 @@ func emailBoxHandler(w http.ResponseWriter, r *http.Request) {
}
}
func sourceMailboxMessagesHandler(w http.ResponseWriter, r *http.Request) {
accountName := strings.TrimSpace(r.URL.Query().Get("source"))
folder := strings.TrimSpace(r.URL.Query().Get("folder"))
w.Header().Set("Content-Type", "text/html; charset=utf-8")
if accountName == "" || folder == "" {
fmt.Fprint(w, `<div class="pane-head">Nachrichten</div><div class="ef-empty">Quell-Postfach und Ordner waehlen.</div>`)
return
}
account, err := GetAccount(accountName)
if err != nil {
fmt.Fprintf(w, `<div class="pane-head">Nachrichten</div><div class="ef-empty">%s</div>`, html.EscapeString(err.Error()))
return
}
messages, err := fetchSourceFolderMessages(account, folder)
if err != nil {
fmt.Fprintf(w, `<div class="pane-head">Nachrichten</div><div class="ef-empty">%s</div>`, html.EscapeString(err.Error()))
return
}
renderSourceMailboxMessageList(w, account, folder, messages)
}
func sourceMailboxMessageHandler(w http.ResponseWriter, r *http.Request) {
accountName := strings.TrimSpace(r.URL.Query().Get("source"))
folder := strings.TrimSpace(r.URL.Query().Get("folder"))
index, err := strconv.Atoi(r.URL.Query().Get("index"))
if err != nil {
http.Error(w, "bad index", http.StatusBadRequest)
return
}
account, err := GetAccount(accountName)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
messages, err := fetchSourceFolderMessages(account, folder)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
if index < 0 || index >= len(messages) {
http.Error(w, "message index out of range", http.StatusNotFound)
return
}
raw := messages[index].Body
msg, err := mail.ReadMessage(bytes.NewReader(raw))
if err != nil {
renderReadPaneWithSource(w, account.Name, folder, "", index, "(unlesbar)", "", "", string(raw))
return
}
renderReadPaneWithSource(w, account.Name, folder, "", index,
decodeHeader(msg.Header.Get("Subject")),
decodeHeader(msg.Header.Get("From")),
decodeHeader(msg.Header.Get("Date")),
messageBody(raw),
)
}
func archiveCreateHandler(w http.ResponseWriter, r *http.Request) {
if !requireManager(w, r) {
return
@ -920,8 +981,50 @@ func renderSourceFolders(b *strings.Builder, account Account) {
return
}
for _, folder := range folders {
fmt.Fprintf(b, `<div class="tree-node folder"><span class="tree-label">%s</span><span class="tree-count">%s</span></div>`,
html.EscapeString(folder.Name), html.EscapeString(strings.Join(folder.Attrs, " ")))
fmt.Fprintf(b, `<a class="tree-node folder" href="#" hx-get="/boxes/source/messages?source=%s&amp;folder=%s" hx-target="#list" hx-swap="innerHTML"><span class="tree-label">%s</span><span class="tree-count">%s</span></a>`,
urlEsc(account.Name), urlEsc(folder.Name), html.EscapeString(folder.Name), html.EscapeString(strings.Join(folder.Attrs, " ")))
}
}
func fetchSourceFolderMessages(account Account, folder string) ([]RawMessage, error) {
if accountProto(account) == "pop3" {
src, err := OpenPOP3Source(account)
if err != nil {
return nil, err
}
defer src.Close()
return src.Fetch(folder)
}
src, err := OpenIMAPSource(account)
if err != nil {
return nil, err
}
defer src.Close()
return src.Fetch(folder)
}
func renderSourceMailboxMessageList(w http.ResponseWriter, account Account, folder string, messages []RawMessage) {
fmt.Fprintf(w, `<div class="pane-head">%s / %s (%d)</div>`, html.EscapeString(account.SrcUser), html.EscapeString(folder), len(messages))
for i, raw := range messages {
subject := "(ohne Betreff)"
from := "(ohne Absender)"
date := ""
if msg, err := mail.ReadMessage(bytes.NewReader(raw.Body)); err == nil {
if v := decodeHeader(msg.Header.Get("Subject")); v != "" {
subject = v
}
if v := decodeHeader(msg.Header.Get("From")); v != "" {
from = v
}
date = decodeHeader(msg.Header.Get("Date"))
}
fmt.Fprintf(w, `<a class="msg-row" href="#" draggable="true" data-source="%s" data-folder="%s" data-index="%d" hx-get="/boxes/source/message?source=%s&amp;folder=%s&amp;index=%d" hx-target="#read" hx-swap="innerHTML"><span class="msg-from">%s</span><span class="msg-subject">%s</span><span class="msg-date">%s</span></a>`,
html.EscapeString(account.Name), html.EscapeString(folder), i,
urlEsc(account.Name), urlEsc(folder), i,
html.EscapeString(from), html.EscapeString(subject), html.EscapeString(date))
}
if len(messages) == 0 {
fmt.Fprint(w, `<div class="ef-empty">Keine Nachrichten in diesem Quell-Ordner.</div>`)
}
}