// Copyright (c) 2024 Mozilla Corporation and contributors. // SPDX-License-Identifier: (Apache-2.0 OR MIT)
use mls_platform_api::ClientIdentifiers; use mls_platform_api::MessageOrAck; use mls_platform_api::PlatformError;
// // Scenario // // * Alice, Bob, Charlie and Diana create signing identity (generate_signature_keypair) // * Alice, Bob, Charlie and Diana create credentials (generate_credential_basic) // * Bob and Charlie create key packages (generate_key_package) // * Alice creates a group (group_create) // * Alice adds Bob to the group (group_add) // - Alice receives her add commit (receive for commit) // - Bob joins the group (group_join) // * Bob sends an application message (send) // - Alice receives the application message (receive for application message) // * Bob adds Charlie to the group // - Bob receives the add commit // - Alice receives the add commit // - Charlie joins the group // * Charlie removes Alice from the group (group_remove) // - Charlie receives her remove commit // - Alice receives the remove commit // - Bob receives the remove commit
#[test] fn test_group_remove() -> Result<(), PlatformError> { // Default group configuration let group_config = mls_platform_api::GroupConfig::default();
// Storage states letmut state_global = mls_platform_api::state_access("global.db", &[0u8; 32])?;
// Credentials let alice_cred = mls_platform_api::mls_generate_credential_basic("alice".as_bytes())?; let bob_cred = mls_platform_api::mls_generate_credential_basic("bob".as_bytes())?; let charlie_cred = mls_platform_api::mls_generate_credential_basic("charlie".as_bytes())?;
// Create signature keypairs and store them in the state let alice_id =
mls_platform_api::mls_generate_signature_keypair(&state_global, group_config.ciphersuite)?;
let bob_id =
mls_platform_api::mls_generate_signature_keypair(&state_global, group_config.ciphersuite)?;
let charlie_id =
mls_platform_api::mls_generate_signature_keypair(&state_global, group_config.ciphersuite)?;
// Create Key Package for Bob let bob_kp = mls_platform_api::mls_generate_key_package(
&state_global,
&bob_id,
&bob_cred,
&Default::default(),
)?;
// Create Key Package for Charlie let charlie_kp = mls_platform_api::mls_generate_key_package(
&state_global,
&charlie_id,
&charlie_cred,
&Default::default(),
)?;
// Create a group with Alice let gide = mls_platform_api::mls_group_create(
&mut state_global,
&alice_id,
&alice_cred,
None,
None,
&Default::default(),
)?;
println!("\nGroup created by Alice: {}", hex::encode(&gide.group_id));
// List the members of the group let members = mls_platform_api::mls_group_members(&state_global, &gide.group_id, &alice_id)?;
println!("Members (alice, before adding bob): {members:?}");
// // Alice adds Bob to a group //
println!("\nAlice adds Bob to the Group"); let commit_output = mls_platform_api::mls_group_add(
&mut state_global,
&gide.group_id,
&alice_id,
vec![bob_kp],
)?;
// Alice process her own commit
println!("\nAlice process her commit to add Bob to the Group");
mls_platform_api::mls_receive(
&state_global,
&alice_id,
&MessageOrAck::MlsMessage(commit_output.commit.clone()),
)?;
// List the members of the group let members = mls_platform_api::mls_group_members(&state_global, &gide.group_id, &alice_id)?;
println!("Members (alice, after adding bob): {members:?}");
// Bob joins
println!("\nBob joins the group created by Alice");
mls_platform_api::mls_group_join(&state_global, &bob_id, &welcome, None)?;
// // Bob adds Charlie //
println!("\nBob adds Charlie to the Group"); let commit_2_output = mls_platform_api::mls_group_add(
&mut state_global,
&gide.group_id,
&bob_id,
vec![charlie_kp],
)?;
let commit_2 = commit_2_output.commit; let welcome_2 = commit_2_output
.welcome
.first()
.expect("No welcome messages found")
.clone();
// Bobs process its commit // println!("\nBob process their Commit");
mls_platform_api::mls_receive(
&state_global,
&bob_id,
&MessageOrAck::MlsMessage(commit_2.clone()),
)?;
// List the members of the group let members = mls_platform_api::mls_group_members(&state_global, &gide.group_id, &bob_id)?;
println!("Members (bob, after adding charlie): {members:?}");
// Alice receives the commit
println!("\nAlice receives the commit from Bob to add Charlie");
mls_platform_api::mls_receive(
&state_global,
&alice_id,
&MessageOrAck::MlsMessage(commit_2),
)?;
// Charlie joins
println!("\nCharlie joins the group");
mls_platform_api::mls_group_join(&state_global, &charlie_id, &welcome_2, None)?;
// List the members of the group let members = mls_platform_api::mls_group_members(&state_global, &gide.group_id, &charlie_id)?;
println!("Members (charlie, after joining the group): {members:?}");
// // Charlie removes Alice from the group //
println!("\nCharlie removes Alice from the Group"); let commit_3_output =
mls_platform_api::mls_group_remove(&state_global, &gide.group_id, &charlie_id, &alice_id)?;
let commit_3 = commit_3_output.commit;
// Charlie receives the commit
mls_platform_api::mls_receive(
&state_global,
&charlie_id,
&MessageOrAck::Ack(gide.group_id.to_vec()),
)?;
let members = mls_platform_api::mls_group_members(&state_global, &gide.group_id, &charlie_id)?;
println!("Members (charlie, after removing alice): {members:?}");
// Alice receives the commit from Charlie
println!("\nAlice receives the remove commit from Charlie"); let _ = mls_platform_api::mls_receive(
&state_global,
&alice_id,
&MessageOrAck::MlsMessage(commit_3.clone()),
)?;
println!("Members (alice, after receiving alice's removal the group): {members:?}");
println!("Alice's state for the group has been removed");
// Bob receives the commit from Charlie
println!("\nBob receives the remove commit from Charlie"); let _ = mls_platform_api::mls_receive(
&state_global,
&bob_id,
&MessageOrAck::MlsMessage(commit_3.clone()),
)?;
let members = mls_platform_api::mls_group_members(&state_global, &gide.group_id, &bob_id)?;
println!("Members (bob, after receiving alice's removal the group): {members:?}");
// Check if Alice is still in the members list let alice_present = members
.group_members
.iter()
.any(|ClientIdentifiers { identity, .. }| identity == &alice_id);
// Test that alice was removed from the group
assert!(
!alice_present, "Alice should not be in the group members after removal"
);
Ok(())
}
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