proton-bridge/internal/transfer/mailbox.go

70 lines
2.1 KiB
Go

// Copyright (c) 2020 Proton Technologies AG
//
// This file is part of ProtonMail Bridge.
//
// ProtonMail Bridge is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// ProtonMail Bridge is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with ProtonMail Bridge. If not, see <https://www.gnu.org/licenses/>.
package transfer
import (
"crypto/sha256"
"fmt"
"strings"
)
// Mailbox is universal data holder of mailbox details for every provider.
type Mailbox struct {
ID string
Name string
Color string
IsExclusive bool
}
// Hash returns unique identifier to be used for matching.
func (m Mailbox) Hash() string {
return fmt.Sprintf("%x", sha256.Sum256([]byte(m.Name)))
}
// findMatchingMailboxes returns all matching mailboxes from `mailboxes`.
// Only one exclusive mailbox is returned.
func (m Mailbox) findMatchingMailboxes(mailboxes []Mailbox) []Mailbox {
nameVariants := []string{}
if strings.Contains(m.Name, "/") || strings.Contains(m.Name, "|") {
for _, slashPart := range strings.Split(m.Name, "/") {
for _, part := range strings.Split(slashPart, "|") {
nameVariants = append(nameVariants, strings.ToLower(part))
}
}
}
nameVariants = append(nameVariants, strings.ToLower(m.Name))
isExclusiveIncluded := false
matches := []Mailbox{}
for i := range nameVariants {
nameVariant := nameVariants[len(nameVariants)-1-i]
for _, mailbox := range mailboxes {
if mailbox.IsExclusive && isExclusiveIncluded {
continue
}
if strings.ToLower(mailbox.Name) == nameVariant {
matches = append(matches, mailbox)
if mailbox.IsExclusive {
isExclusiveIncluded = true
}
}
}
}
return matches
}