mirror of
https://github.com/scottlamb/moonfire-nvr.git
synced 2024-12-26 07:05:56 -05:00
504f1a36ab
This drops several older dependencies and reduces final binary size (text section by ~200KiB, unstripped binary by ~12MiB) I'll have to manually add new hash formats, and I won't ever be able to take advantage of libpasta's (currently unused) facility to wrap hashes, but I think it's worth it. libpasta isn't well-maintained.
428 lines
17 KiB
SQL
428 lines
17 KiB
SQL
-- This file is part of Moonfire NVR, a security camera network video recorder.
|
|
-- Copyright (C) 2020 The Moonfire NVR Authors; see AUTHORS and LICENSE.txt.
|
|
-- SPDX-License-Identifier: GPL-v3.0-or-later WITH GPL-3.0-linking-exception.';
|
|
|
|
-- schema.sql: SQLite3 database schema for Moonfire NVR.
|
|
-- See also design/schema.md.
|
|
|
|
-- Database metadata. There should be exactly one row in this table.
|
|
create table meta (
|
|
uuid blob not null check (length(uuid) = 16),
|
|
|
|
-- Holds a json.GlobalConfig.
|
|
config text
|
|
);
|
|
|
|
-- This table tracks the schema version.
|
|
-- There is one row for the initial database creation (inserted below, after the
|
|
-- create statements) and one for each upgrade procedure (if any).
|
|
create table version (
|
|
id integer primary key,
|
|
|
|
-- The unix time as of the creation/upgrade, as determined by
|
|
-- cast(strftime('%s', 'now') as int).
|
|
unix_time integer not null,
|
|
|
|
-- Optional notes on the creation/upgrade; could include the binary version.
|
|
notes text
|
|
);
|
|
|
|
-- Tracks every time the database has been opened in read/write mode.
|
|
-- This is used to ensure directories are in sync with the database (see
|
|
-- schema.proto:DirMeta), to disambiguate uncommitted recordings, and
|
|
-- potentially to understand time problems.
|
|
create table open (
|
|
id integer primary key,
|
|
uuid blob unique not null check (length(uuid) = 16),
|
|
|
|
-- Information about when / how long the database was open. These may be all
|
|
-- null, for example in the open that represents all information written
|
|
-- prior to database version 3.
|
|
|
|
-- System time when the database was opened, in 90 kHz units since
|
|
-- 1970-01-01 00:00:00Z excluding leap seconds.
|
|
start_time_90k integer,
|
|
|
|
-- System time when the database was closed or (on crash) last flushed.
|
|
end_time_90k integer,
|
|
|
|
-- How long the database was open. This is end_time_90k - start_time_90k if
|
|
-- there were no time steps or leap seconds during this time.
|
|
duration_90k integer,
|
|
|
|
boot_uuid check (length(boot_uuid) = 16)
|
|
);
|
|
|
|
create table sample_file_dir (
|
|
id integer primary key,
|
|
uuid blob unique not null check (length(uuid) = 16),
|
|
|
|
-- See json.SampleFileDirConfig.
|
|
config text,
|
|
|
|
-- The last (read/write) open of this directory which fully completed.
|
|
-- See schema.proto:DirMeta for a more complete description.
|
|
last_complete_open_id integer references open (id)
|
|
);
|
|
|
|
create table camera (
|
|
id integer primary key,
|
|
uuid blob unique not null check (length(uuid) = 16),
|
|
|
|
-- A short name of the camera, used in log messages.
|
|
short_name text not null,
|
|
|
|
-- A serialized json.CameraConfig
|
|
config text not null
|
|
);
|
|
|
|
create table stream (
|
|
id integer primary key,
|
|
camera_id integer not null references camera (id),
|
|
sample_file_dir_id integer references sample_file_dir (id),
|
|
type text not null check (type in ('main', 'sub', 'ext')),
|
|
|
|
-- A serialized json.StreamConfig
|
|
config text not null,
|
|
|
|
-- The total number of recordings ever created on this stream, including
|
|
-- deleted ones. This is used for assigning the next recording id.
|
|
cum_recordings integer not null check (cum_recordings >= 0),
|
|
|
|
-- The total media duration of all recordings ever created on this stream.
|
|
cum_media_duration_90k integer not null check (cum_media_duration_90k >= 0),
|
|
|
|
-- The total number of runs (recordings with run_offset = 0) ever created
|
|
-- on this stream.
|
|
cum_runs integer not null check (cum_runs >= 0),
|
|
|
|
unique (camera_id, type)
|
|
);
|
|
|
|
-- Each row represents a single completed recorded segment of video.
|
|
-- Recordings are typically ~60 seconds; never more than 5 minutes.
|
|
create table recording (
|
|
-- The high 32 bits of composite_id are taken from the stream's id, which
|
|
-- improves locality. The low 32 bits are taken from the stream's
|
|
-- cum_recordings (which should be post-incremented in the same
|
|
-- transaction). It'd be simpler to use a "without rowid" table and separate
|
|
-- fields to make up the primary key, but
|
|
-- <https://www.sqlite.org/withoutrowid.html> points out that "without
|
|
-- rowid" is not appropriate when the average row size is in excess of 50
|
|
-- bytes. recording_cover rows (which match this id format) are typically
|
|
-- 1--5 KiB.
|
|
composite_id integer primary key,
|
|
|
|
-- The open in which this was committed to the database. For a given
|
|
-- composite_id, only one recording will ever be committed to the database,
|
|
-- but in-memory state may reflect a recording which never gets committed.
|
|
-- This field allows disambiguation in etags and such.
|
|
open_id integer not null references open (id),
|
|
|
|
-- This field is redundant with composite_id above, but used to enforce the
|
|
-- reference constraint and to structure the recording_start_time index.
|
|
stream_id integer not null references stream (id),
|
|
|
|
-- The offset of this recording within a run. 0 means this was the first
|
|
-- recording made from a RTSP session. The start of the run has composite_id
|
|
-- (composite_id-run_offset).
|
|
run_offset integer not null,
|
|
|
|
-- flags is a bitmask:
|
|
--
|
|
-- * 1, or "trailing zero", indicates that this recording is the last in a
|
|
-- stream. As the duration of a sample is not known until the next sample
|
|
-- is received, the final sample in this recording will have duration 0.
|
|
flags integer not null,
|
|
|
|
sample_file_bytes integer not null check (sample_file_bytes > 0),
|
|
|
|
-- The starting time of the recording, in 90 kHz units since
|
|
-- 1970-01-01 00:00:00 UTC excluding leap seconds. Currently on initial
|
|
-- connection, this is taken from the local system time; on subsequent
|
|
-- recordings in a run, it exactly matches the previous recording's end
|
|
-- time.
|
|
start_time_90k integer not null check (start_time_90k > 0),
|
|
|
|
-- The total duration of all previous recordings on this stream. This is
|
|
-- returned in API requests and may be helpful for timestamps in a HTML
|
|
-- MediaSourceExtensions SourceBuffer.
|
|
prev_media_duration_90k integer not null
|
|
check (prev_media_duration_90k >= 0),
|
|
|
|
-- The total number of previous runs (rows in which run_offset = 0).
|
|
prev_runs integer not null check (prev_runs >= 0),
|
|
|
|
-- The wall-time duration of the recording, in 90 kHz units. This is the
|
|
-- "corrected" duration.
|
|
wall_duration_90k integer not null
|
|
check (wall_duration_90k >= 0 and wall_duration_90k < 5*60*90000),
|
|
|
|
-- The media-time duration of the recording, relative to wall_duration_90k.
|
|
-- That is, media_duration_90k = wall_duration_90k + media_duration_delta_90k.
|
|
media_duration_delta_90k integer not null,
|
|
|
|
video_samples integer not null check (video_samples > 0),
|
|
video_sync_samples integer not null check (video_sync_samples > 0),
|
|
video_sample_entry_id integer references video_sample_entry (id),
|
|
|
|
-- The reason this run ended. Absent if there are more recordings in this
|
|
-- run or if this recording predates schema version 7.
|
|
end_reason text
|
|
|
|
check (composite_id >> 32 = stream_id)
|
|
);
|
|
|
|
create index recording_cover on recording (
|
|
-- Typical queries use "where stream_id = ? order by start_time_90k".
|
|
stream_id,
|
|
start_time_90k,
|
|
|
|
-- These fields are not used for ordering; they cover most queries so
|
|
-- that only database verification and actual viewing of recordings need
|
|
-- to consult the underlying row.
|
|
open_id,
|
|
wall_duration_90k,
|
|
media_duration_delta_90k,
|
|
video_samples,
|
|
video_sync_samples,
|
|
video_sample_entry_id,
|
|
sample_file_bytes,
|
|
run_offset,
|
|
flags
|
|
);
|
|
|
|
-- Fields which are only needed to check/correct database integrity problems
|
|
-- (such as incorrect timestamps).
|
|
create table recording_integrity (
|
|
-- See description on recording table.
|
|
composite_id integer primary key references recording (composite_id),
|
|
|
|
-- The number of 90 kHz units the local system's monotonic clock has
|
|
-- advanced more than the stated duration of recordings in a run since the
|
|
-- first recording ended. Negative numbers indicate the local system time is
|
|
-- behind the recording.
|
|
--
|
|
-- The first recording of a run (that is, one with run_offset=0) has null
|
|
-- local_time_delta_90k because errors are assumed to
|
|
-- be the result of initial buffering rather than frequency mismatch.
|
|
--
|
|
-- This value should be near 0 even on long runs in which the camera's clock
|
|
-- and local system's clock frequency differ because each recording's delta
|
|
-- is used to correct the durations of the next (up to 500 ppm error).
|
|
local_time_delta_90k integer,
|
|
|
|
-- The number of 90 kHz units the local system's monotonic clock had
|
|
-- advanced since the database was opened, as of the start of recording.
|
|
-- TODO: fill this in!
|
|
local_time_since_open_90k integer,
|
|
|
|
-- The difference between start_time_90k+duration_90k and a wall clock
|
|
-- timestamp captured at end of this recording. This is meaningful for all
|
|
-- recordings in a run, even the initial one (run_offset=0), because
|
|
-- start_time_90k is derived from the wall time as of when recording
|
|
-- starts, not when it ends.
|
|
-- TODO: fill this in!
|
|
wall_time_delta_90k integer,
|
|
|
|
-- The (possibly truncated) raw blake3 hash of the contents of the sample
|
|
-- file.
|
|
sample_file_blake3 blob check (length(sample_file_blake3) <= 32)
|
|
);
|
|
|
|
-- Large fields for a recording which are needed ony for playback.
|
|
-- In particular, when serving a byte range within a .mp4 file, the
|
|
-- recording_playback row is needed for the recording(s) corresponding to that
|
|
-- particular byte range, needed, but the recording rows suffice for all other
|
|
-- recordings in the .mp4.
|
|
create table recording_playback (
|
|
-- See description on recording table.
|
|
composite_id integer primary key references recording (composite_id),
|
|
|
|
-- See design/schema.md#video_index for a description of this field.
|
|
video_index blob not null check (length(video_index) > 0)
|
|
|
|
-- audio_index could be added here in the future.
|
|
);
|
|
|
|
-- Files which are to be deleted (may or may not still exist).
|
|
-- Note that besides these files, for each stream, any recordings >= its
|
|
-- cum_recordings should be discarded on startup.
|
|
create table garbage (
|
|
-- This is _mostly_ redundant with composite_id, which contains the stream
|
|
-- id and thus a linkage to the sample file directory. Listing it here
|
|
-- explicitly means that streams can be deleted without losing the
|
|
-- association of garbage to directory.
|
|
sample_file_dir_id integer not null references sample_file_dir (id),
|
|
|
|
-- See description on recording table.
|
|
composite_id integer not null,
|
|
|
|
-- Organize the table first by directory, as that's how it will be queried.
|
|
primary key (sample_file_dir_id, composite_id)
|
|
) without rowid;
|
|
|
|
-- A concrete box derived from a ISO/IEC 14496-12 section 8.5.2
|
|
-- VisualSampleEntry box. Describes the codec, width, height, etc.
|
|
create table video_sample_entry (
|
|
id integer primary key,
|
|
|
|
-- The width and height in pixels; must match values within
|
|
-- `sample_entry_bytes`.
|
|
width integer not null check (width > 0),
|
|
height integer not null check (height > 0),
|
|
|
|
-- The codec in RFC-6381 format, such as "avc1.4d001f".
|
|
rfc6381_codec text not null,
|
|
|
|
-- The serialized box, including the leading length and box type (avcC in
|
|
-- the case of H.264).
|
|
data blob not null check (length(data) > 86),
|
|
|
|
-- Pixel aspect ratio, if known. As defined in ISO/IEC 14496-12 section
|
|
-- 12.1.4.
|
|
pasp_h_spacing integer not null default 1 check (pasp_h_spacing > 0),
|
|
pasp_v_spacing integer not null default 1 check (pasp_v_spacing > 0)
|
|
);
|
|
|
|
create table user (
|
|
id integer primary key,
|
|
username unique not null,
|
|
|
|
-- A json.UserConfig.
|
|
config text,
|
|
|
|
-- If set, a hash for password authentication, which currently must be
|
|
-- in PHC format using the scrypt algorithm. This is separate from config for
|
|
-- two reasons:
|
|
-- * It should never be sent over the wire, because password hashes are
|
|
-- almost as sensitive as passwords themselves. Keeping it separate avoids
|
|
-- complicating the protocol for retrieving the config and updating it
|
|
-- with optimistic concurrency control.
|
|
-- * It may be updated while authenticating to upgrade the password hash
|
|
-- format, and the conflicting writes again might complicate the update
|
|
-- protocol.
|
|
password_hash text,
|
|
|
|
-- A counter which increments with every password reset or clear.
|
|
password_id integer not null default 0,
|
|
|
|
-- Updated lazily on database flush; reset when password_id is incremented.
|
|
-- This could be used to automatically disable the password on hitting a threshold.
|
|
password_failure_count integer not null default 0,
|
|
|
|
-- Permissions available for newly created tokens or when authenticating via
|
|
-- unix_uid above. A serialized "Permissions" protobuf.
|
|
permissions blob not null default X''
|
|
);
|
|
|
|
-- A single session, whether for browser or robot use.
|
|
-- These map at the HTTP layer to an "s" cookie (exact format described
|
|
-- elsewhere), which holds the session id and an encrypted sequence number for
|
|
-- replay protection.
|
|
create table user_session (
|
|
-- The session id is a 48-byte blob. This is the unsalted Blake3 (32 bytes)
|
|
-- of the unencoded session id. Much like `password_hash`, a hash is used here
|
|
-- so that a leaked database backup can't be trivially used to steal
|
|
-- credentials.
|
|
session_id_hash blob primary key not null,
|
|
|
|
user_id integer references user (id) not null,
|
|
|
|
-- A 32-byte random number. Used to derive keys for the replay protection
|
|
-- and CSRF tokens.
|
|
seed blob not null,
|
|
|
|
-- A bitwise mask of flags, currently all properties of the HTTP cookie
|
|
-- used to hold the session:
|
|
-- 1: HttpOnly
|
|
-- 2: Secure
|
|
-- 4: SameSite=Lax
|
|
-- 8: SameSite=Strict - 4 must also be set.
|
|
flags integer not null,
|
|
|
|
-- The domain of the HTTP cookie used to store this session. The outbound
|
|
-- `Set-Cookie` header never specifies a scope, so this matches the `Host:` of
|
|
-- the inbound HTTP request (minus the :port, if any was specified).
|
|
domain text,
|
|
|
|
-- An editable description which might describe the device/program which uses
|
|
-- this session, such as "Chromebook", "iPhone", or "motion detection worker".
|
|
description text,
|
|
|
|
creation_password_id integer, -- the id it was created from, if created via password
|
|
creation_time_sec integer not null, -- sec since epoch
|
|
creation_user_agent text, -- User-Agent header from inbound HTTP request.
|
|
creation_peer_addr blob, -- IPv4 or IPv6 address, or null for Unix socket.
|
|
|
|
revocation_time_sec integer, -- sec since epoch
|
|
revocation_user_agent text, -- User-Agent header from inbound HTTP request.
|
|
revocation_peer_addr blob, -- IPv4 or IPv6 address, or null for Unix socket/no peer.
|
|
|
|
-- A value indicating the reason for revocation, with optional additional
|
|
-- text detail. Enumeration values:
|
|
-- 0: logout link clicked (i.e. from within the session itself)
|
|
-- 1: obsoleted by a change in hashing algorithm (eg schema 5->6 upgrade)
|
|
--
|
|
-- This might be extended for a variety of other reasons:
|
|
-- x: user revoked (while authenticated in another way)
|
|
-- x: password change invalidated all sessions created with that password
|
|
-- x: expired (due to fixed total time or time inactive)
|
|
-- x: evicted (due to too many sessions)
|
|
-- x: suspicious activity
|
|
revocation_reason integer,
|
|
revocation_reason_detail text,
|
|
|
|
-- Information about requests which used this session, updated lazily on database flush.
|
|
last_use_time_sec integer, -- sec since epoch
|
|
last_use_user_agent text, -- User-Agent header from inbound HTTP request.
|
|
last_use_peer_addr blob, -- IPv4 or IPv6 address, or null for Unix socket.
|
|
use_count not null default 0,
|
|
|
|
-- Permissions associated with this token; a serialized "Permissions" protobuf.
|
|
permissions blob not null default X''
|
|
) without rowid;
|
|
|
|
create index user_session_uid on user_session (user_id);
|
|
|
|
-- Timeseries with an enum value, eg:
|
|
-- * camera motion detection results (unknown, still, moving)
|
|
-- * security system arm status (unknown, disarmed, away, stay)
|
|
-- * security system zone status (unknown, normal, violated, trouble)
|
|
create table signal (
|
|
id integer primary key,
|
|
uuid blob unique not null check (length(uuid) = 16),
|
|
type_uuid blob not null references signal_type (uuid)
|
|
check (length(type_uuid) = 16),
|
|
|
|
-- Holds a json.SignalConfig
|
|
config text
|
|
);
|
|
|
|
create table signal_type (
|
|
uuid blob primary key check (length(uuid) = 16),
|
|
|
|
-- Holds a json.SignalTypeConfig
|
|
config text
|
|
) without rowid;
|
|
|
|
-- Changes to signals as of a given timestamp.
|
|
create table signal_change (
|
|
-- Event time, in 90 kHz units since 1970-01-01 00:00:00Z excluding leap seconds.
|
|
time_90k integer primary key,
|
|
|
|
-- Changes at this timestamp.
|
|
--
|
|
-- A blob of varints representing a list of
|
|
-- (signal number - next allowed, state) pairs, where signal number is
|
|
-- non-decreasing. For example,
|
|
-- input signals: 1 3 200 (must be sorted)
|
|
-- delta: 1 1 196 (must be non-negative)
|
|
-- states: 1 1 2
|
|
-- varint: \x01 \x01 \x01 \x01 \xc4 \x01 \x02
|
|
changes blob not null
|
|
);
|
|
|
|
insert into version (id, unix_time, notes)
|
|
values (7, cast(strftime('%s', 'now') as int), 'db creation');
|