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d821cdf1c8
systemli.org seems not to include Received: header in messages sent to self, including BCC-self and messages sent to Saved message chat. This results in all these messages not being displayed on other devices in multi-device setting. To work around this problem we restrict draft detection based on Received: header to classical mails. Delta Chat already implements proper draft detection based on the \Draft message flag and \Drafts folder flag. However, Thunderbird does not set \Draft flag when message is stored as "Template". To make draft detection for Thunderbird more robust, in case Received: header check is removed altogether later, we check for X-Mozilla-Draft-Info header which Thunderbird sets both for "Drafts" and "Templates".
116 lines
3.1 KiB
Rust
116 lines
3.1 KiB
Rust
use crate::strum::AsStaticRef;
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use mailparse::{MailHeader, MailHeaderMap};
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#[derive(Debug, Display, Clone, PartialEq, Eq, EnumVariantNames, AsStaticStr)]
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#[strum(serialize_all = "kebab_case")]
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pub enum HeaderDef {
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MessageId,
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Subject,
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Date,
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From_,
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To,
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Cc,
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Disposition,
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/// Used in the "Body Part Header" of MDNs as of RFC 8098.
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/// Indicates the Message-ID of the message for which the MDN is being issued.
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OriginalMessageId,
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/// Delta Chat extension for message IDs in combined MDNs
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AdditionalMessageIds,
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/// Outlook-SMTP-server replace the `Message-ID:`-header
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/// and write the original ID to `X-Microsoft-Original-Message-ID`.
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/// To sort things correctly and to not show outgoing messages twice,
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/// we need to check that header as well.
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XMicrosoftOriginalMessageId,
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/// Thunderbird header used to store Draft information.
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///
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/// Thunderbird 78.11.0 does not set \Draft flag on messages saved as "Template", but sets this
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/// header, so it can be used to ignore such messages.
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XMozillaDraftInfo,
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ListId,
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References,
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InReplyTo,
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Precedence,
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ContentType,
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ContentId,
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ChatVersion,
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ChatGroupId,
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ChatGroupName,
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ChatGroupNameChanged,
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ChatVerified,
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ChatGroupAvatar,
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ChatUserAvatar,
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ChatVoiceMessage,
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ChatGroupMemberRemoved,
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ChatGroupMemberAdded,
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ChatContent,
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ChatDuration,
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ChatDispositionNotificationTo,
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ChatWebrtcRoom,
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Autocrypt,
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AutocryptSetupMessage,
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SecureJoin,
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SecureJoinGroup,
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SecureJoinFingerprint,
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SecureJoinInvitenumber,
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SecureJoinAuth,
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Sender,
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EphemeralTimer,
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Received,
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_TestHeader,
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}
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impl HeaderDef {
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/// Returns the corresponding Event id.
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pub fn get_headername(&self) -> &'static str {
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self.as_static()
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}
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}
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pub trait HeaderDefMap {
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fn get_header_value(&self, headerdef: HeaderDef) -> Option<String>;
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fn get_header(&self, headerdef: HeaderDef) -> Option<&MailHeader>;
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}
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impl HeaderDefMap for [MailHeader<'_>] {
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fn get_header_value(&self, headerdef: HeaderDef) -> Option<String> {
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self.get_first_value(headerdef.get_headername())
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}
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fn get_header(&self, headerdef: HeaderDef) -> Option<&MailHeader> {
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self.get_first_header(headerdef.get_headername())
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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/// Test that kebab_case serialization works as expected
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fn kebab_test() {
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assert_eq!(HeaderDef::From_.get_headername(), "from");
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assert_eq!(HeaderDef::_TestHeader.get_headername(), "test-header");
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}
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#[test]
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/// Test that headers are parsed case-insensitively
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fn test_get_header_value_case() {
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let (headers, _) =
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mailparse::parse_headers(b"fRoM: Bob\naUtoCryPt-SeTup-MessAge: v99").unwrap();
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assert_eq!(
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headers.get_header_value(HeaderDef::AutocryptSetupMessage),
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Some("v99".to_string())
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);
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assert_eq!(
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headers.get_header_value(HeaderDef::From_),
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Some("Bob".to_string())
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);
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assert_eq!(headers.get_header_value(HeaderDef::Autocrypt), None);
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}
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}
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