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implement exporting of all mailboxes/messages as zip/tgz of mbox/maildir

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This commit is contained in:
Mechiel Lukkien
2023-02-13 18:04:05 +01:00
parent ad51ffc365
commit 3de6642b3a
6 changed files with 547 additions and 7 deletions
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54
http/account.go
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@ -1,6 +1,9 @@
package http
import (
"archive/tar"
"archive/zip"
"compress/gzip"
"context"
"encoding/base64"
"errors"
@ -109,7 +112,12 @@ func accountHandle(w http.ResponseWriter, r *http.Request) {
return
}
if r.Method == "GET" && r.URL.Path == "/" {
switch r.URL.Path {
case "/":
if r.Method != "GET" {
http.Error(w, "405 - method not allowed - post required", http.StatusMethodNotAllowed)
return
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
w.Header().Set("Cache-Control", "no-cache; max-age=0")
// We typically return the embedded admin.html, but during development it's handy
@ -121,9 +129,49 @@ func accountHandle(w http.ResponseWriter, r *http.Request) {
} else {
w.Write(accountHTML)
}
return
case "/mail-export-maildir.tgz", "/mail-export-maildir.zip", "/mail-export-mbox.tgz", "/mail-export-mbox.zip":
maildir := strings.Contains(r.URL.Path, "maildir")
tgz := strings.Contains(r.URL.Path, ".tgz")
acc, err := store.OpenAccount(accName)
if err != nil {
log.Errorx("open account for export", err)
http.Error(w, "500 - internal server error", http.StatusInternalServerError)
return
}
defer acc.Close()
var archiver store.Archiver
if tgz {
// Don't tempt browsers to "helpfully" decompress.
w.Header().Set("Content-Type", "application/octet-stream")
gzw := gzip.NewWriter(w)
defer func() {
gzw.Close()
}()
archiver = store.TarArchiver{Writer: tar.NewWriter(gzw)}
} else {
w.Header().Set("Content-Type", "application/zip")
archiver = store.ZipArchiver{Writer: zip.NewWriter(w)}
}
defer func() {
if err := archiver.Close(); err != nil {
log.Errorx("exporting mail close", err)
}
}()
if err := acc.ExportMessages(log, archiver, maildir, ""); err != nil {
log.Errorx("exporting mail", err)
}
default:
if strings.HasPrefix(r.URL.Path, "/api/") {
accountSherpaHandler.ServeHTTP(w, r.WithContext(context.WithValue(ctx, authCtxKey, accName)))
return
}
http.NotFound(w, r)
}
accountSherpaHandler.ServeHTTP(w, r.WithContext(context.WithValue(ctx, authCtxKey, accName)))
}
type ctxKey string