76 lines
2.2 KiB
Rust
76 lines
2.2 KiB
Rust
//! Common types for the Send-To-Device Messaging
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//!
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//! [send-to-device]: https://spec.matrix.org/latest/client-server-api/#send-to-device-messaging
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use std::fmt::{Display, Formatter, Result as FmtResult};
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use serde::{
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de::{self, Unexpected},
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Deserialize, Deserializer, Serialize, Serializer,
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};
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use crate::OwnedDeviceId;
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/// Represents one or all of a user's devices.
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#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
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#[allow(clippy::exhaustive_enums)]
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pub enum DeviceIdOrAllDevices {
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/// Represents a device Id for one of a user's devices.
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DeviceId(OwnedDeviceId),
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/// Represents all devices for a user.
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AllDevices,
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}
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impl Display for DeviceIdOrAllDevices {
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fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult {
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match self {
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DeviceIdOrAllDevices::DeviceId(device_id) => write!(f, "{device_id}"),
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DeviceIdOrAllDevices::AllDevices => write!(f, "*"),
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}
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}
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}
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impl From<OwnedDeviceId> for DeviceIdOrAllDevices {
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fn from(d: OwnedDeviceId) -> Self {
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DeviceIdOrAllDevices::DeviceId(d)
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}
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}
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impl TryFrom<&str> for DeviceIdOrAllDevices {
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type Error = &'static str;
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fn try_from(device_id_or_all_devices: &str) -> Result<Self, Self::Error> {
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if device_id_or_all_devices.is_empty() {
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Err("Device identifier cannot be empty")
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} else if "*" == device_id_or_all_devices {
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Ok(DeviceIdOrAllDevices::AllDevices)
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} else {
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Ok(DeviceIdOrAllDevices::DeviceId(device_id_or_all_devices.into()))
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}
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}
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}
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impl Serialize for DeviceIdOrAllDevices {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
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where
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S: Serializer,
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{
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match self {
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Self::DeviceId(device_id) => device_id.serialize(serializer),
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Self::AllDevices => serializer.serialize_str("*"),
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}
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}
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}
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impl<'de> Deserialize<'de> for DeviceIdOrAllDevices {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
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where
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D: Deserializer<'de>,
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{
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let s = crate::serde::deserialize_cow_str(deserializer)?;
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DeviceIdOrAllDevices::try_from(s.as_ref()).map_err(|_| {
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de::Error::invalid_value(Unexpected::Str(&s), &"a valid device identifier or '*'")
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})
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}
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}
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