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authorKoni Marti <koni.marti@gmail.com>2022-07-11 20:11:21 +0200
committerRobin Jarry <robin@jarry.cc>2022-07-14 23:14:56 +0200
commite572087e58aaa36b6fdbf0086491907c9169efb0 (patch)
tree0c51ed1252b9367c7e52221b905523a4be9a4c37 /commands/account/import-mbox.go
parent845763cb1f1f8b7acdfc8e94e0a2d61ff78f6b9d (diff)
downloadaerc-e572087e58aaa36b6fdbf0086491907c9169efb0.tar.gz
account: import mbox file to a folder
Append all messages from an mbox file to the selected folder with the import-mbox command. User confirmation is required when the folder already contains messages. A failed append will be retried a few times. If a backend timeout occurs, the entire import is stopped to prevent a hang. Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
Diffstat (limited to 'commands/account/import-mbox.go')
-rw-r--r--commands/account/import-mbox.go153
1 files changed, 153 insertions, 0 deletions
diff --git a/commands/account/import-mbox.go b/commands/account/import-mbox.go
new file mode 100644
index 00000000..1430debc
--- /dev/null
+++ b/commands/account/import-mbox.go
@@ -0,0 +1,153 @@
+package account
+
+import (
+ "bytes"
+ "errors"
+ "fmt"
+ "io"
+ "os"
+ "path/filepath"
+ "sync/atomic"
+ "time"
+
+ "git.sr.ht/~rjarry/aerc/commands"
+ "git.sr.ht/~rjarry/aerc/models"
+ "git.sr.ht/~rjarry/aerc/widgets"
+ mboxer "git.sr.ht/~rjarry/aerc/worker/mbox"
+ "git.sr.ht/~rjarry/aerc/worker/types"
+)
+
+type ImportMbox struct{}
+
+func init() {
+ register(ImportMbox{})
+}
+
+func (ImportMbox) Aliases() []string {
+ return []string{"import-mbox"}
+}
+
+func (ImportMbox) Complete(aerc *widgets.Aerc, args []string) []string {
+ return commands.CompletePath(filepath.Join(args...))
+}
+
+func (ImportMbox) Execute(aerc *widgets.Aerc, args []string) error {
+ if len(args) != 2 {
+ return importFolderUsage(args[0])
+ }
+ filename := args[1]
+
+ acct := aerc.SelectedAccount()
+ if acct == nil {
+ return errors.New("No account selected")
+ }
+ store := acct.Store()
+ if store == nil {
+ return errors.New("No message store selected")
+ }
+
+ folder := acct.SelectedDirectory()
+ if folder == "" {
+ return errors.New("No directory selected")
+ }
+
+ importFolder := func() {
+ statusInfo := fmt.Sprintln("Importing", filename, "to folder", folder)
+ aerc.PushStatus(statusInfo, 10*time.Second)
+ acct.Logger().Println(args[0], statusInfo)
+ f, err := os.Open(filename)
+ if err != nil {
+ aerc.PushError(err.Error())
+ return
+ }
+ defer f.Close()
+
+ messages, err := mboxer.Read(f)
+ if err != nil {
+ aerc.PushError(err.Error())
+ return
+ }
+ worker := acct.Worker()
+
+ var appended uint32
+ for i, m := range messages {
+ done := make(chan bool)
+ var retries int = 4
+ for retries > 0 {
+ var buf bytes.Buffer
+ r, err := m.NewReader()
+ if err != nil {
+ acct.Logger().Println(fmt.Sprintf("%s: could not get reader for uid %d", args[0], m.UID()))
+ break
+ }
+ nbytes, _ := io.Copy(&buf, r)
+ worker.PostAction(&types.AppendMessage{
+ Destination: folder,
+ Flags: []models.Flag{models.SeenFlag},
+ Date: time.Now(),
+ Reader: &buf,
+ Length: int(nbytes),
+ }, func(msg types.WorkerMessage) {
+ switch msg := msg.(type) {
+ case *types.Unsupported:
+ errMsg := fmt.Sprintf("%s: AppendMessage is unsupported", args[0])
+ acct.Logger().Println(errMsg)
+ aerc.PushError(errMsg)
+ return
+ case *types.Error:
+ acct.Logger().Println(args[0], msg.Error.Error())
+ done <- false
+ case *types.Done:
+ atomic.AddUint32(&appended, 1)
+ done <- true
+ }
+ })
+
+ select {
+ case ok := <-done:
+ if ok {
+ retries = 0
+ } else {
+ // error encountered; try to append again after a quick nap
+ retries -= 1
+ sleeping := time.Duration((5 - retries) * 1e9)
+ acct.Logger().Println(args[0], "sleeping for", sleeping, "before append message", i, "again")
+ time.Sleep(sleeping)
+ }
+ case <-time.After(30 * time.Second):
+ acct.Logger().Println(args[0], "timed-out; appended", appended, "of", len(messages))
+ return
+ }
+ }
+ }
+ infoStr := fmt.Sprintf("%s: imported %d of %d sucessfully.", args[0], appended, len(messages))
+ acct.Logger().Println(infoStr)
+ aerc.SetStatus(infoStr)
+ }
+
+ if len(store.Uids()) > 0 {
+ confirm := widgets.NewSelectorDialog(
+ "Selected directory is not empty",
+ fmt.Sprintf("Import mbox file to %s anyways?", folder),
+ []string{"No", "Yes"}, 0, aerc.SelectedAccountUiConfig(),
+ func(option string, err error) {
+ aerc.CloseDialog()
+ aerc.Invalidate()
+ switch option {
+ case "Yes":
+ go importFolder()
+ }
+ return
+ },
+ )
+ aerc.AddDialog(confirm)
+ } else {
+ go importFolder()
+ }
+
+ return nil
+}
+
+func importFolderUsage(cmd string) error {
+ return fmt.Errorf("Usage: %s <filename>", cmd)
+}