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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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22
export.go
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@ -12,20 +12,22 @@ import (
)
func cmdExportMaildir(c *cmd) {
c.params = "dst-dir account-path [mailbox]"
c.params = "[-single] dst-dir account-path [mailbox]"
c.help = `Export one or all mailboxes from an account in maildir format.
Export bypasses a running mox instance. It opens the account mailbox/message
database file directly. This may block if a running mox instance also has the
database open, e.g. for IMAP connections. To export from a running instance, use
the accounts web page.
the accounts web page or webmail.
`
var single bool
c.flag.BoolVar(&single, "single", false, "export single mailbox, without any children. disabled if mailbox isn't specified.")
args := c.Parse()
xcmdExport(false, args, c)
xcmdExport(false, single, args, c)
}
func cmdExportMbox(c *cmd) {
c.params = "dst-dir account-path [mailbox]"
c.params = "[-single] dst-dir account-path [mailbox]"
c.help = `Export messages from one or all mailboxes in an account in mbox format.
Using mbox is not recommended. Maildir is a better format.
@ -33,17 +35,19 @@ Using mbox is not recommended. Maildir is a better format.
Export bypasses a running mox instance. It opens the account mailbox/message
database file directly. This may block if a running mox instance also has the
database open, e.g. for IMAP connections. To export from a running instance, use
the accounts web page.
the accounts web page or webmail.
For mbox export, "mboxrd" is used where message lines starting with the magic
"From " string are escaped by prepending a >. All ">*From " are escaped,
otherwise reconstructing the original could lose a ">".
`
var single bool
c.flag.BoolVar(&single, "single", false, "export single mailbox, without any children. disabled if mailbox isn't specified.")
args := c.Parse()
xcmdExport(true, args, c)
xcmdExport(true, single, args, c)
}
func xcmdExport(mbox bool, args []string, c *cmd) {
func xcmdExport(mbox, single bool, args []string, c *cmd) {
if len(args) != 2 && len(args) != 3 {
c.Usage()
}
@ -53,6 +57,8 @@ func xcmdExport(mbox bool, args []string, c *cmd) {
var mailbox string
if len(args) == 3 {
mailbox = args[2]
} else {
single = false
}
dbpath := filepath.Join(accountDir, "index.db")
@ -65,7 +71,7 @@ func xcmdExport(mbox bool, args []string, c *cmd) {
}()
a := store.DirArchiver{Dir: dst}
err = store.ExportMessages(context.Background(), c.log, db, accountDir, a, !mbox, mailbox)
err = store.ExportMessages(context.Background(), c.log, db, accountDir, a, !mbox, mailbox, !single)
xcheckf(err, "exporting messages")
err = a.Close()
xcheckf(err, "closing archiver")