Public Access
jaap-jan
b20f7cae04
The relay checkbox said it was not wired up, and the plan said the server half was built and shipped. It was not: there was ADR 0004, the contract records, RelayOptions and a CHECK constraint, and RelayOptions said in its own remarks that there was no endpoint and no dialler. So both halves are built here, as step 3 of docs/reaching-a-host-you-cannot-dial.md. Server, in Features/Relay: - POST /api/v1/relay/tickets makes every decision: the host, Connect on its vault, the relay switched on, and the stored name resolved once and judged by RelayAddressPolicy. Loopback, link-local, 0.0.0.0/8, multicast and the metadata endpoints are refused with no configuration escape, with IPv4-mapped and NAT64 spellings unwrapped first; then the operator's denials, allow-list and private-network switch. What passes goes into a Data Protection ticket, and nothing resolves the name again. Every target refusal is the same 403, so the endpoint cannot be used to map the operator's DNS; the real reason is logged. - GET /api/v1/relay/connect takes the ticket as a second subprotocol, checks its expiry against TimeProvider and spends it with a unique insert into relay_ticket_use before accepting the upgrade. After the upgrade a refusal is a close code: 4502 for a host the server could not reach, 4429 for a limit, 4408 idle, 4409 lifetime, 1001 after a drain. - relay_session is the audit row, written from short-lived scopes. Client: - RelayBridge is a loopback SOCKS5 listener that accepts once and pipes to the relay socket. It rides on the new SshLoopbackProxy.Lifetime, so the connection disposes it on every way a session ends and a failed connect disposes it before throwing. - ServerRelay, exposed as IVaultServer.Relay from /api/v1/meta, asks for the ticket, opens the socket, starts the bridge and turns every refusal into a sentence. - VaultViewModel and TransfersViewModel reach a relayed host through it, never fall back to dialling it directly, and replace SSH.NET's transport error with the relay's own reason when it gave one. Neither side ever cancels a WebSocket operation. Cancelling one aborts the socket, and an aborted socket sends no close frame, which is the only way the client learns the server could not reach the host. AnIdleSession_IsClosedWithTheIdleCode asserts that the code arrives. Three departures from ADR 0004, recorded in it: awaited copy loops rather than Pipelines (same backpressure, two 32 KiB buffers), no ?ticket= fallback, and no device id in the ticket. Tests: API 245, shell 582 (5 skipped), layout 170, SSH 110 including a real login through the bridge, API client 30, contracts 25. Not run: the Android build (its change is copy only) and the Alpine layout oracle.
109 lines
4.3 KiB
C#
109 lines
4.3 KiB
C#
using DodoSSH.Domain;
|
|
using Microsoft.EntityFrameworkCore;
|
|
|
|
namespace DodoSSH.Infrastructure;
|
|
|
|
/// <summary>
|
|
/// The application database context.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>
|
|
/// Everything lives in the <c>dodo</c> schema with snake_case names. Timestamps are
|
|
/// <c>timestamptz</c> and always UTC, so there is no tzdata dependency and no conflict with
|
|
/// <c>InvariantGlobalization</c>.
|
|
/// </para>
|
|
/// <para>
|
|
/// Two concurrency mechanisms coexist deliberately. <c>Version</c> on item rows is the
|
|
/// client-visible, monotonic value used for <c>expectedVersion</c> conflict detection.
|
|
/// <c>xmin</c> is the server-side optimistic guard and is never exposed, because it is not stable
|
|
/// across <c>VACUUM FREEZE</c> and must never become a client cursor.
|
|
/// </para>
|
|
/// </remarks>
|
|
public class DodoDbContext(DbContextOptions<DodoDbContext> options) : DbContext(options)
|
|
{
|
|
/// <summary>The database schema every table lives in.</summary>
|
|
public const string SchemaName = "dodo";
|
|
|
|
/// <summary>User accounts.</summary>
|
|
public DbSet<UserAccount> Users => Set<UserAccount>();
|
|
|
|
/// <summary>Identity key generations.</summary>
|
|
public DbSet<UserKey> UserKeys => Set<UserKey>();
|
|
|
|
/// <summary>Wraps of users' secret bundles.</summary>
|
|
public DbSet<UserKeyWrap> UserKeyWraps => Set<UserKeyWrap>();
|
|
|
|
/// <summary>Enrolled devices.</summary>
|
|
public DbSet<Device> Devices => Set<Device>();
|
|
|
|
/// <summary>The append-only key transparency log.</summary>
|
|
public DbSet<KeyLogEntry> KeyLog => Set<KeyLogEntry>();
|
|
|
|
/// <summary>Teams.</summary>
|
|
public DbSet<Team> Teams => Set<Team>();
|
|
|
|
/// <summary>Team memberships.</summary>
|
|
public DbSet<TeamMembership> TeamMemberships => Set<TeamMembership>();
|
|
|
|
/// <summary>Vaults.</summary>
|
|
public DbSet<Vault> Vaults => Set<Vault>();
|
|
|
|
/// <summary>Wrapped vault keys.</summary>
|
|
public DbSet<VaultKeyGrant> VaultKeyGrants => Set<VaultKeyGrant>();
|
|
|
|
/// <summary>SSH hosts.</summary>
|
|
public DbSet<SshHost> Hosts => Set<SshHost>();
|
|
|
|
/// <summary>SSH key pairs, held as ciphertext.</summary>
|
|
public DbSet<VaultSshKey> SshKeys => Set<VaultSshKey>();
|
|
|
|
/// <summary>Usernames and passwords, held as ciphertext.</summary>
|
|
public DbSet<VaultCredential> Credentials => Set<VaultCredential>();
|
|
|
|
/// <summary>Trusted SSH host keys, held as ciphertext.</summary>
|
|
public DbSet<VaultKnownHostKey> KnownHostKeys => Set<VaultKnownHostKey>();
|
|
|
|
/// <summary>Host groups, held as ciphertext.</summary>
|
|
public DbSet<VaultHostGroup> HostGroups => Set<VaultHostGroup>();
|
|
|
|
/// <summary>Tags hosts can wear, held as ciphertext.</summary>
|
|
public DbSet<VaultTag> Tags => Set<VaultTag>();
|
|
|
|
/// <summary>Saved commands, held as ciphertext.</summary>
|
|
public DbSet<VaultSnippet> Snippets => Set<VaultSnippet>();
|
|
|
|
/// <summary>Connections that were made, held as ciphertext.</summary>
|
|
public DbSet<VaultConnectionLogEntry> ConnectionLog => Set<VaultConnectionLogEntry>();
|
|
|
|
/// <summary>Changes made to keychain items, held as ciphertext.</summary>
|
|
public DbSet<VaultActivityLogEntry> ActivityLog => Set<VaultActivityLogEntry>();
|
|
|
|
/// <summary>S3-compatible buckets and their credentials, held as ciphertext.</summary>
|
|
public DbSet<VaultObjectStore> ObjectStores => Set<VaultObjectStore>();
|
|
|
|
/// <summary>The per-vault change log that delta sync reads.</summary>
|
|
public DbSet<VaultChange> VaultChanges => Set<VaultChange>();
|
|
|
|
/// <summary>Applied-operation receipts, for exactly-once retries.</summary>
|
|
public DbSet<SyncOperationReceipt> SyncOperationReceipts => Set<SyncOperationReceipt>();
|
|
|
|
/// <summary>Redeemed relay tickets: the replay guard ADR 0004 shares between nodes.</summary>
|
|
public DbSet<RelayTicketUse> RelayTicketUses => Set<RelayTicketUse>();
|
|
|
|
/// <summary>The relay's audit record, one row per session.</summary>
|
|
public DbSet<RelaySession> RelaySessions => Set<RelaySession>();
|
|
|
|
/// <inheritdoc />
|
|
protected override void OnModelCreating(ModelBuilder modelBuilder)
|
|
{
|
|
ArgumentNullException.ThrowIfNull(modelBuilder);
|
|
|
|
modelBuilder.HasDefaultSchema(SchemaName);
|
|
modelBuilder.HasPostgresExtension("citext");
|
|
|
|
modelBuilder.ApplyConfigurationsFromAssembly(typeof(DodoDbContext).Assembly);
|
|
|
|
base.OnModelCreating(modelBuilder);
|
|
}
|
|
}
|