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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
View File

@ -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

9
http/account.html
View File

@ -195,6 +195,15 @@ const index = async () => {
}
},
),
dom.br(),
dom.h2('Export'),
dom.p('Export all messages in all mailboxes. Either in maildir format (with flags like Replied, Forwarded, Junk, etc) or in mbox format (without flags). And either as .zip file or .tgz file.'),
dom.ul(
dom.li(dom.a('mail-export-maildir.tgz', attr({href: 'mail-export-maildir.tgz'}))),
dom.li(dom.a('mail-export-maildir.zip', attr({href: 'mail-export-maildir.zip'}))),
dom.li(dom.a('mail-export-mbox.tgz', attr({href: 'mail-export-mbox.tgz'}))),
dom.li(dom.a('mail-export-mbox.zip', attr({href: 'mail-export-mbox.zip'}))),
),
footer,
)
}