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webmail: add export functionality

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per mailbox, or for all mailboxes, in maildir/mbox format, in tar/tgz/zip
archive or without archive format for single mbox, single or recursive. the
webaccount already had an option to export all mailboxes, it now looks similar
to the webmail version.
This commit is contained in:
Mechiel Lukkien
2024-04-22 13:41:40 +02:00
parent a3f5fd26a6
commit bf5cfca6b9
14 changed files with 483 additions and 289 deletions
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49
webaccount/account.go
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@ -3,10 +3,7 @@
package webaccount
import (
"archive/tar"
"archive/zip"
"bytes"
"compress/gzip"
"context"
cryptorand "crypto/rand"
"encoding/base64"
@ -39,6 +36,7 @@ import (
"github.com/mjl-/mox/webapi"
"github.com/mjl-/mox/webauth"
"github.com/mjl-/mox/webhook"
"github.com/mjl-/mox/webops"
)
var pkglog = mlog.New("webaccount", nil)
@ -218,7 +216,7 @@ func handle(apiHandler http.Handler, isForwarded bool, w http.ResponseWriter, r
// All other URLs, except the login endpoint require some authentication.
if r.URL.Path != "/api/LoginPrep" && r.URL.Path != "/api/Login" {
var ok bool
isExport := strings.HasPrefix(r.URL.Path, "/export/")
isExport := r.URL.Path == "/export"
requireCSRF := isAPI || r.URL.Path == "/import" || isExport
accName, sessionToken, loginAddress, ok = webauth.Check(ctx, log, webauth.Accounts, "webaccount", isForwarded, w, r, isAPI, requireCSRF, isExport)
if !ok {
@ -235,47 +233,8 @@ func handle(apiHandler http.Handler, isForwarded bool, w http.ResponseWriter, r
}
switch r.URL.Path {
case "/export/mail-export-maildir.tgz", "/export/mail-export-maildir.zip", "/export/mail-export-mbox.tgz", "/export/mail-export-mbox.zip":
if r.Method != "POST" {
http.Error(w, "405 - method not allowed - use post", http.StatusMethodNotAllowed)
return
}
maildir := strings.Contains(r.URL.Path, "maildir")
tgz := strings.Contains(r.URL.Path, ".tgz")
acc, err := store.OpenAccount(log, accName)
if err != nil {
log.Errorx("open account for export", err)
http.Error(w, "500 - internal server error", http.StatusInternalServerError)
return
}
defer func() {
err := acc.Close()
log.Check(err, "closing account")
}()
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() {
err := archiver.Close()
log.Check(err, "exporting mail close")
}()
if err := store.ExportMessages(r.Context(), log, acc.DB, acc.Dir, archiver, maildir, ""); err != nil {
log.Errorx("exporting mail", err)
}
case "/export":
webops.Export(log, accName, w, r)
case "/import":
if r.Method != "POST" {