crypto: Move the inner sas struct into a separate module.
Damir Jelić
parent
7198b0daba
commit
b9ddbb11af
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@ -0,0 +1,267 @@
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// Copyright 2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#[cfg(test)]
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use std::time::Instant;
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use std::sync::Arc;
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use matrix_sdk_common::events::{
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key::verification::{
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accept::AcceptToDeviceEventContent, cancel::CancelCode, mac::MacToDeviceEventContent,
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start::StartToDeviceEventContent,
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},
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AnyToDeviceEvent, AnyToDeviceEventContent, ToDeviceEvent,
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};
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use crate::{
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identities::{ReadOnlyDevice, UserIdentities},
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ReadOnlyAccount,
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};
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use super::sas_state::{
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Accepted, Canceled, Confirmed, Created, Done, KeyReceived, MacReceived, SasState, Started,
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};
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#[derive(Clone, Debug)]
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pub enum InnerSas {
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Created(SasState<Created>),
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Started(SasState<Started>),
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Accepted(SasState<Accepted>),
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KeyRecieved(SasState<KeyReceived>),
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Confirmed(SasState<Confirmed>),
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MacReceived(SasState<MacReceived>),
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Done(SasState<Done>),
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Canceled(SasState<Canceled>),
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}
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impl InnerSas {
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pub fn start(
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account: ReadOnlyAccount,
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other_device: ReadOnlyDevice,
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other_identity: Option<UserIdentities>,
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) -> (InnerSas, StartToDeviceEventContent) {
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let sas = SasState::<Created>::new(account, other_device, other_identity);
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let content = sas.as_content();
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(InnerSas::Created(sas), content)
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}
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pub fn from_start_event(
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account: ReadOnlyAccount,
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other_device: ReadOnlyDevice,
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event: &ToDeviceEvent<StartToDeviceEventContent>,
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other_identity: Option<UserIdentities>,
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) -> Result<InnerSas, AnyToDeviceEventContent> {
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match SasState::<Started>::from_start_event(account, other_device, event, other_identity) {
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Ok(s) => Ok(InnerSas::Started(s)),
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Err(s) => Err(s.as_content()),
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}
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}
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pub fn accept(&self) -> Option<AcceptToDeviceEventContent> {
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if let InnerSas::Started(s) = self {
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Some(s.as_content())
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} else {
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None
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}
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}
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#[cfg(test)]
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#[allow(dead_code)]
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pub fn set_creation_time(&mut self, time: Instant) {
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match self {
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InnerSas::Created(s) => s.set_creation_time(time),
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InnerSas::Started(s) => s.set_creation_time(time),
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InnerSas::Canceled(s) => s.set_creation_time(time),
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InnerSas::Accepted(s) => s.set_creation_time(time),
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InnerSas::KeyRecieved(s) => s.set_creation_time(time),
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InnerSas::Confirmed(s) => s.set_creation_time(time),
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InnerSas::MacReceived(s) => s.set_creation_time(time),
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InnerSas::Done(s) => s.set_creation_time(time),
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}
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}
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pub fn cancel(self, code: CancelCode) -> (InnerSas, Option<AnyToDeviceEventContent>) {
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let sas = match self {
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InnerSas::Created(s) => s.cancel(code),
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InnerSas::Started(s) => s.cancel(code),
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InnerSas::Accepted(s) => s.cancel(code),
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InnerSas::KeyRecieved(s) => s.cancel(code),
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InnerSas::MacReceived(s) => s.cancel(code),
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_ => return (self, None),
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};
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let content = sas.as_content();
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(InnerSas::Canceled(sas), Some(content))
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}
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pub fn confirm(self) -> (InnerSas, Option<MacToDeviceEventContent>) {
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match self {
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InnerSas::KeyRecieved(s) => {
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let sas = s.confirm();
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let content = sas.as_content();
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(InnerSas::Confirmed(sas), Some(content))
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}
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InnerSas::MacReceived(s) => {
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let sas = s.confirm();
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let content = sas.as_content();
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(InnerSas::Done(sas), Some(content))
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}
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_ => (self, None),
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}
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}
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pub fn receive_event(
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self,
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event: &AnyToDeviceEvent,
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) -> (InnerSas, Option<AnyToDeviceEventContent>) {
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match event {
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AnyToDeviceEvent::KeyVerificationAccept(e) => {
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if let InnerSas::Created(s) = self {
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match s.into_accepted(e) {
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Ok(s) => {
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let content = s.as_content();
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(
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InnerSas::Accepted(s),
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Some(AnyToDeviceEventContent::KeyVerificationKey(content)),
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)
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}
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Err(s) => {
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let content = s.as_content();
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(InnerSas::Canceled(s), Some(content))
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}
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}
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} else {
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(self, None)
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}
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}
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AnyToDeviceEvent::KeyVerificationKey(e) => match self {
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InnerSas::Accepted(s) => match s.into_key_received(e) {
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Ok(s) => (InnerSas::KeyRecieved(s), None),
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Err(s) => {
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let content = s.as_content();
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(InnerSas::Canceled(s), Some(content))
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}
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},
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InnerSas::Started(s) => match s.into_key_received(e) {
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Ok(s) => {
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let content = s.as_content();
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(
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InnerSas::KeyRecieved(s),
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Some(AnyToDeviceEventContent::KeyVerificationKey(content)),
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)
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}
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Err(s) => {
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let content = s.as_content();
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(InnerSas::Canceled(s), Some(content))
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}
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},
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_ => (self, None),
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},
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AnyToDeviceEvent::KeyVerificationMac(e) => match self {
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InnerSas::KeyRecieved(s) => match s.into_mac_received(e) {
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Ok(s) => (InnerSas::MacReceived(s), None),
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Err(s) => {
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let content = s.as_content();
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(InnerSas::Canceled(s), Some(content))
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}
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},
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InnerSas::Confirmed(s) => match s.into_done(e) {
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Ok(s) => (InnerSas::Done(s), None),
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Err(s) => {
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let content = s.as_content();
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(InnerSas::Canceled(s), Some(content))
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}
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},
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_ => (self, None),
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},
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_ => (self, None),
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}
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}
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pub fn can_be_presented(&self) -> bool {
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match self {
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InnerSas::KeyRecieved(_) => true,
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InnerSas::MacReceived(_) => true,
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_ => false,
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}
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}
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pub fn is_done(&self) -> bool {
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matches!(self, InnerSas::Done(_))
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}
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pub fn is_canceled(&self) -> bool {
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matches!(self, InnerSas::Canceled(_))
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}
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pub fn timed_out(&self) -> bool {
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match self {
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InnerSas::Created(s) => s.timed_out(),
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InnerSas::Started(s) => s.timed_out(),
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InnerSas::Canceled(s) => s.timed_out(),
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InnerSas::Accepted(s) => s.timed_out(),
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InnerSas::KeyRecieved(s) => s.timed_out(),
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InnerSas::Confirmed(s) => s.timed_out(),
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InnerSas::MacReceived(s) => s.timed_out(),
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InnerSas::Done(s) => s.timed_out(),
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}
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}
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pub fn verification_flow_id(&self) -> Arc<str> {
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match self {
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InnerSas::Created(s) => s.verification_flow_id.clone(),
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InnerSas::Started(s) => s.verification_flow_id.clone(),
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InnerSas::Canceled(s) => s.verification_flow_id.clone(),
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InnerSas::Accepted(s) => s.verification_flow_id.clone(),
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InnerSas::KeyRecieved(s) => s.verification_flow_id.clone(),
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InnerSas::Confirmed(s) => s.verification_flow_id.clone(),
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InnerSas::MacReceived(s) => s.verification_flow_id.clone(),
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InnerSas::Done(s) => s.verification_flow_id.clone(),
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}
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}
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pub fn emoji(&self) -> Option<Vec<(&'static str, &'static str)>> {
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match self {
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InnerSas::KeyRecieved(s) => Some(s.get_emoji()),
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InnerSas::MacReceived(s) => Some(s.get_emoji()),
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_ => None,
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}
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}
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pub fn decimals(&self) -> Option<(u16, u16, u16)> {
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match self {
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InnerSas::KeyRecieved(s) => Some(s.get_decimal()),
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InnerSas::MacReceived(s) => Some(s.get_decimal()),
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_ => None,
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}
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}
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pub fn verified_devices(&self) -> Option<Arc<[ReadOnlyDevice]>> {
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if let InnerSas::Done(s) = self {
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Some(s.verified_devices())
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} else {
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None
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}
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}
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pub fn verified_identities(&self) -> Option<Arc<[UserIdentities]>> {
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if let InnerSas::Done(s) = self {
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Some(s.verified_identities())
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} else {
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None
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}
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}
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}
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@ -13,6 +13,7 @@
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// limitations under the License.
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// limitations under the License.
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mod helpers;
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mod helpers;
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mod inner_sas;
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mod sas_state;
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mod sas_state;
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#[cfg(test)]
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#[cfg(test)]
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@ -25,8 +26,8 @@ use matrix_sdk_common::{
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api::r0::keys::upload_signatures::Request as SignatureUploadRequest,
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api::r0::keys::upload_signatures::Request as SignatureUploadRequest,
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events::{
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events::{
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key::verification::{
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key::verification::{
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accept::AcceptToDeviceEventContent, cancel::CancelCode, mac::MacToDeviceEventContent,
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cancel::CancelCode,
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start::StartToDeviceEventContent,
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start::{StartEventContent, StartToDeviceEventContent},
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},
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},
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AnyToDeviceEvent, AnyToDeviceEventContent, ToDeviceEvent,
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AnyToDeviceEvent, AnyToDeviceEventContent, ToDeviceEvent,
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},
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},
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@ -42,9 +43,7 @@ use crate::{
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};
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};
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pub use helpers::content_to_request;
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pub use helpers::content_to_request;
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use sas_state::{
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use inner_sas::InnerSas;
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Accepted, Canceled, Confirmed, Created, Done, KeyReceived, MacReceived, SasState, Started,
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};
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#[derive(Debug)]
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#[derive(Debug)]
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/// A result of a verification flow.
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/// A result of a verification flow.
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@ -537,238 +536,6 @@ impl Sas {
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}
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}
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}
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}
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#[derive(Clone, Debug)]
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enum InnerSas {
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Created(SasState<Created>),
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Started(SasState<Started>),
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Accepted(SasState<Accepted>),
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KeyRecieved(SasState<KeyReceived>),
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Confirmed(SasState<Confirmed>),
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MacReceived(SasState<MacReceived>),
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Done(SasState<Done>),
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Canceled(SasState<Canceled>),
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}
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impl InnerSas {
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fn start(
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account: ReadOnlyAccount,
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other_device: ReadOnlyDevice,
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other_identity: Option<UserIdentities>,
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) -> (InnerSas, StartToDeviceEventContent) {
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let sas = SasState::<Created>::new(account, other_device, other_identity);
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let content = sas.as_content();
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(InnerSas::Created(sas), content)
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}
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fn from_start_event(
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account: ReadOnlyAccount,
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other_device: ReadOnlyDevice,
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event: &ToDeviceEvent<StartToDeviceEventContent>,
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other_identity: Option<UserIdentities>,
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) -> Result<InnerSas, AnyToDeviceEventContent> {
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match SasState::<Started>::from_start_event(account, other_device, event, other_identity) {
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Ok(s) => Ok(InnerSas::Started(s)),
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Err(s) => Err(s.as_content()),
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}
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}
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fn accept(&self) -> Option<AcceptToDeviceEventContent> {
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if let InnerSas::Started(s) = self {
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Some(s.as_content())
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} else {
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None
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}
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}
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#[cfg(test)]
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#[allow(dead_code)]
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fn set_creation_time(&mut self, time: Instant) {
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match self {
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InnerSas::Created(s) => s.set_creation_time(time),
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InnerSas::Started(s) => s.set_creation_time(time),
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InnerSas::Canceled(s) => s.set_creation_time(time),
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InnerSas::Accepted(s) => s.set_creation_time(time),
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InnerSas::KeyRecieved(s) => s.set_creation_time(time),
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InnerSas::Confirmed(s) => s.set_creation_time(time),
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InnerSas::MacReceived(s) => s.set_creation_time(time),
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InnerSas::Done(s) => s.set_creation_time(time),
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}
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}
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fn cancel(self, code: CancelCode) -> (InnerSas, Option<AnyToDeviceEventContent>) {
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let sas = match self {
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InnerSas::Created(s) => s.cancel(code),
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InnerSas::Started(s) => s.cancel(code),
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InnerSas::Accepted(s) => s.cancel(code),
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InnerSas::KeyRecieved(s) => s.cancel(code),
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InnerSas::MacReceived(s) => s.cancel(code),
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_ => return (self, None),
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};
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let content = sas.as_content();
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|
||||||
(InnerSas::Canceled(sas), Some(content))
|
|
||||||
}
|
|
||||||
|
|
||||||
fn confirm(self) -> (InnerSas, Option<MacToDeviceEventContent>) {
|
|
||||||
match self {
|
|
||||||
InnerSas::KeyRecieved(s) => {
|
|
||||||
let sas = s.confirm();
|
|
||||||
let content = sas.as_content();
|
|
||||||
(InnerSas::Confirmed(sas), Some(content))
|
|
||||||
}
|
|
||||||
InnerSas::MacReceived(s) => {
|
|
||||||
let sas = s.confirm();
|
|
||||||
let content = sas.as_content();
|
|
||||||
(InnerSas::Done(sas), Some(content))
|
|
||||||
}
|
|
||||||
_ => (self, None),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn receive_event(
|
|
||||||
self,
|
|
||||||
event: &AnyToDeviceEvent,
|
|
||||||
) -> (InnerSas, Option<AnyToDeviceEventContent>) {
|
|
||||||
match event {
|
|
||||||
AnyToDeviceEvent::KeyVerificationAccept(e) => {
|
|
||||||
if let InnerSas::Created(s) = self {
|
|
||||||
match s.into_accepted(e) {
|
|
||||||
Ok(s) => {
|
|
||||||
let content = s.as_content();
|
|
||||||
(
|
|
||||||
InnerSas::Accepted(s),
|
|
||||||
Some(AnyToDeviceEventContent::KeyVerificationKey(content)),
|
|
||||||
)
|
|
||||||
}
|
|
||||||
Err(s) => {
|
|
||||||
let content = s.as_content();
|
|
||||||
(InnerSas::Canceled(s), Some(content))
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
(self, None)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
AnyToDeviceEvent::KeyVerificationKey(e) => match self {
|
|
||||||
InnerSas::Accepted(s) => match s.into_key_received(e) {
|
|
||||||
Ok(s) => (InnerSas::KeyRecieved(s), None),
|
|
||||||
Err(s) => {
|
|
||||||
let content = s.as_content();
|
|
||||||
(InnerSas::Canceled(s), Some(content))
|
|
||||||
}
|
|
||||||
},
|
|
||||||
InnerSas::Started(s) => match s.into_key_received(e) {
|
|
||||||
Ok(s) => {
|
|
||||||
let content = s.as_content();
|
|
||||||
(
|
|
||||||
InnerSas::KeyRecieved(s),
|
|
||||||
Some(AnyToDeviceEventContent::KeyVerificationKey(content)),
|
|
||||||
)
|
|
||||||
}
|
|
||||||
Err(s) => {
|
|
||||||
let content = s.as_content();
|
|
||||||
(InnerSas::Canceled(s), Some(content))
|
|
||||||
}
|
|
||||||
},
|
|
||||||
_ => (self, None),
|
|
||||||
},
|
|
||||||
AnyToDeviceEvent::KeyVerificationMac(e) => match self {
|
|
||||||
InnerSas::KeyRecieved(s) => match s.into_mac_received(e) {
|
|
||||||
Ok(s) => (InnerSas::MacReceived(s), None),
|
|
||||||
Err(s) => {
|
|
||||||
let content = s.as_content();
|
|
||||||
(InnerSas::Canceled(s), Some(content))
|
|
||||||
}
|
|
||||||
},
|
|
||||||
InnerSas::Confirmed(s) => match s.into_done(e) {
|
|
||||||
Ok(s) => (InnerSas::Done(s), None),
|
|
||||||
Err(s) => {
|
|
||||||
let content = s.as_content();
|
|
||||||
(InnerSas::Canceled(s), Some(content))
|
|
||||||
}
|
|
||||||
},
|
|
||||||
_ => (self, None),
|
|
||||||
},
|
|
||||||
_ => (self, None),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn can_be_presented(&self) -> bool {
|
|
||||||
match self {
|
|
||||||
InnerSas::KeyRecieved(_) => true,
|
|
||||||
InnerSas::MacReceived(_) => true,
|
|
||||||
_ => false,
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn is_done(&self) -> bool {
|
|
||||||
matches!(self, InnerSas::Done(_))
|
|
||||||
}
|
|
||||||
|
|
||||||
fn is_canceled(&self) -> bool {
|
|
||||||
matches!(self, InnerSas::Canceled(_))
|
|
||||||
}
|
|
||||||
|
|
||||||
fn timed_out(&self) -> bool {
|
|
||||||
match self {
|
|
||||||
InnerSas::Created(s) => s.timed_out(),
|
|
||||||
InnerSas::Started(s) => s.timed_out(),
|
|
||||||
InnerSas::Canceled(s) => s.timed_out(),
|
|
||||||
InnerSas::Accepted(s) => s.timed_out(),
|
|
||||||
InnerSas::KeyRecieved(s) => s.timed_out(),
|
|
||||||
InnerSas::Confirmed(s) => s.timed_out(),
|
|
||||||
InnerSas::MacReceived(s) => s.timed_out(),
|
|
||||||
InnerSas::Done(s) => s.timed_out(),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn verification_flow_id(&self) -> Arc<str> {
|
|
||||||
match self {
|
|
||||||
InnerSas::Created(s) => s.verification_flow_id.clone(),
|
|
||||||
InnerSas::Started(s) => s.verification_flow_id.clone(),
|
|
||||||
InnerSas::Canceled(s) => s.verification_flow_id.clone(),
|
|
||||||
InnerSas::Accepted(s) => s.verification_flow_id.clone(),
|
|
||||||
InnerSas::KeyRecieved(s) => s.verification_flow_id.clone(),
|
|
||||||
InnerSas::Confirmed(s) => s.verification_flow_id.clone(),
|
|
||||||
InnerSas::MacReceived(s) => s.verification_flow_id.clone(),
|
|
||||||
InnerSas::Done(s) => s.verification_flow_id.clone(),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn emoji(&self) -> Option<Vec<(&'static str, &'static str)>> {
|
|
||||||
match self {
|
|
||||||
InnerSas::KeyRecieved(s) => Some(s.get_emoji()),
|
|
||||||
InnerSas::MacReceived(s) => Some(s.get_emoji()),
|
|
||||||
_ => None,
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn decimals(&self) -> Option<(u16, u16, u16)> {
|
|
||||||
match self {
|
|
||||||
InnerSas::KeyRecieved(s) => Some(s.get_decimal()),
|
|
||||||
InnerSas::MacReceived(s) => Some(s.get_decimal()),
|
|
||||||
_ => None,
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn verified_devices(&self) -> Option<Arc<[ReadOnlyDevice]>> {
|
|
||||||
if let InnerSas::Done(s) = self {
|
|
||||||
Some(s.verified_devices())
|
|
||||||
} else {
|
|
||||||
None
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn verified_identities(&self) -> Option<Arc<[UserIdentities]>> {
|
|
||||||
if let InnerSas::Done(s) = self {
|
|
||||||
Some(s.verified_identities())
|
|
||||||
} else {
|
|
||||||
None
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#[cfg(test)]
|
#[cfg(test)]
|
||||||
mod test {
|
mod test {
|
||||||
use std::{convert::TryFrom, sync::Arc};
|
use std::{convert::TryFrom, sync::Arc};
|
||||||
|
|
@ -785,7 +552,10 @@ mod test {
|
||||||
ReadOnlyAccount, ReadOnlyDevice,
|
ReadOnlyAccount, ReadOnlyDevice,
|
||||||
};
|
};
|
||||||
|
|
||||||
use super::{Accepted, Created, Sas, SasState, Started};
|
use super::{
|
||||||
|
sas_state::{Accepted, Created, SasState, Started},
|
||||||
|
Sas,
|
||||||
|
};
|
||||||
|
|
||||||
fn alice_id() -> UserId {
|
fn alice_id() -> UserId {
|
||||||
UserId::try_from("@alice:example.org").unwrap()
|
UserId::try_from("@alice:example.org").unwrap()
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue