Advance forge rollout, Ethereum rails, and NBC sources
This commit is contained in:
every.channel
parent
be26313225
commit
7d84510eac
88 changed files with 11230 additions and 302 deletions
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@ -1,8 +1,14 @@
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//! Core types shared across every.channel.
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use serde::{Deserialize, Serialize};
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use sha3::{Digest, Keccak256};
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use std::fmt;
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pub const MANIFEST_ID_ALG_BLAKE3: &str = "blake3";
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pub const MANIFEST_ID_ALG_KECCAK256: &str = "keccak256";
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pub const MERKLE_PROOF_ALG_BLAKE3: &str = "merkle+blake3";
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pub const MERKLE_PROOF_ALG_KECCAK256: &str = "merkle+keccak256";
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#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
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pub struct ChannelId(pub String);
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@ -12,6 +18,13 @@ pub struct DeviceId(pub String);
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#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
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pub struct StreamId(pub String);
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#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
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pub struct ChainCommitment {
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pub chain: String,
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pub scheme: String,
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pub digest: String,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct StreamDescriptor {
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pub id: StreamId,
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@ -19,6 +32,8 @@ pub struct StreamDescriptor {
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pub number: Option<String>,
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pub source: String,
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pub metadata: Vec<StreamMetadata>,
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#[serde(default, skip_serializing_if = "Vec::is_empty")]
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pub commitments: Vec<ChainCommitment>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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@ -32,6 +47,7 @@ pub struct BroadcastId {
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pub standard: String,
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pub transport_stream_id: Option<u16>,
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pub program_number: Option<u16>,
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pub virtual_channel: Option<String>,
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pub callsign: Option<String>,
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pub region: Option<String>,
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pub frequency: Option<String>,
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@ -54,6 +70,30 @@ pub struct StreamKey {
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}
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impl StreamKey {
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pub fn for_channel_or_source(
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channel: Option<&Channel>,
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standard: Option<&str>,
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source: SourceId,
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profile: Option<String>,
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variant: Option<String>,
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) -> Self {
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let broadcast = channel
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.and_then(|channel| standard.and_then(|standard| channel.broadcast_id(standard)));
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let source = if broadcast.is_some() {
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None
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} else {
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Some(source)
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};
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Self {
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version: 1,
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broadcast,
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source,
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profile,
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variant,
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}
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}
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pub fn to_stream_id(&self) -> StreamId {
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let mut parts = vec![
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"ec".to_string(),
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@ -70,6 +110,9 @@ impl StreamKey {
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if let Some(program) = broadcast.program_number {
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parts.push(format!("program-{program}"));
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}
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if let Some(channel) = &broadcast.virtual_channel {
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parts.push(format!("channel-{}", sanitize(channel)));
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}
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if let Some(callsign) = &broadcast.callsign {
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parts.push(format!("callsign-{}", sanitize(callsign)));
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}
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@ -132,6 +175,90 @@ pub enum ChannelMetadata {
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Extra(String, String),
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}
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impl BroadcastId {
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pub fn is_usable(&self) -> bool {
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self.transport_stream_id.is_some()
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|| self.program_number.is_some()
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|| self
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.virtual_channel
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.as_ref()
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.is_some_and(|value| !value.trim().is_empty())
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|| self
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.callsign
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.as_ref()
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.is_some_and(|value| !value.trim().is_empty())
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}
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}
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impl Channel {
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pub fn broadcast_id(&self, standard: &str) -> Option<BroadcastId> {
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let standard = standard.trim().to_ascii_lowercase();
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if standard.is_empty() {
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return None;
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}
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let callsign = channel_metadata_value(&self.metadata, "callsign").or_else(|| {
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let name = self.name.trim();
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(!name.is_empty()).then(|| name.to_string())
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});
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let region = channel_metadata_value(&self.metadata, "region");
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let frequency = channel_metadata_value(&self.metadata, "frequency");
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let transport_stream_id = channel_metadata_u16(&self.metadata, "transport_stream_id")
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.or_else(|| channel_metadata_u16(&self.metadata, "tsid"));
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let program_number = self
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.program_id
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.or_else(|| channel_metadata_u16(&self.metadata, "program_number"))
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.or_else(|| channel_metadata_u16(&self.metadata, "program_id"));
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let virtual_channel = self.number.as_ref().and_then(|value| {
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let trimmed = value.trim();
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(!trimmed.is_empty()).then(|| trimmed.to_string())
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});
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let broadcast = BroadcastId {
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standard,
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transport_stream_id,
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program_number,
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virtual_channel,
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callsign,
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region,
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frequency,
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};
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broadcast.is_usable().then_some(broadcast)
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}
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}
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fn channel_metadata_value(metadata: &[ChannelMetadata], key: &str) -> Option<String> {
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for item in metadata {
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match item {
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ChannelMetadata::Callsign(value) if key == "callsign" => {
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return Some(value.trim().to_string())
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}
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ChannelMetadata::Region(value) if key == "region" => {
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return Some(value.trim().to_string())
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}
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ChannelMetadata::Frequency(value) if key == "frequency" => {
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return Some(value.trim().to_string())
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}
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ChannelMetadata::Network(value) if key == "network" => {
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return Some(value.trim().to_string())
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}
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ChannelMetadata::Extra(extra_key, value) if extra_key.eq_ignore_ascii_case(key) => {
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let trimmed = value.trim_matches('"').trim().to_string();
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if !trimmed.is_empty() {
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return Some(trimmed);
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}
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}
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_ => {}
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}
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}
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None
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}
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fn channel_metadata_u16(metadata: &[ChannelMetadata], key: &str) -> Option<u16> {
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channel_metadata_value(metadata, key).and_then(|value| value.parse().ok())
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct PacketDigest {
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pub algorithm: String,
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@ -207,6 +334,8 @@ pub struct StreamControlAnnouncement {
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pub updated_unix_ms: u64,
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/// Suggested freshness window for this announcement.
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pub ttl_ms: u64,
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#[serde(default, skip_serializing_if = "Vec::is_empty")]
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pub commitments: Vec<ChainCommitment>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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@ -218,6 +347,8 @@ pub struct ManifestSummary {
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pub chunk_start_index: u64,
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pub encoder_profile_id: String,
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pub signed_by: Vec<String>,
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#[serde(default, skip_serializing_if = "Vec::is_empty")]
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pub commitments: Vec<ChainCommitment>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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@ -268,6 +399,8 @@ pub struct Manifest {
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pub body: ManifestBody,
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pub manifest_id: String,
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pub signatures: Vec<ManifestSignature>,
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#[serde(default, skip_serializing_if = "Vec::is_empty")]
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pub commitments: Vec<ChainCommitment>,
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}
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impl Manifest {
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@ -284,6 +417,7 @@ impl Manifest {
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.iter()
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.map(|sig| sig.signer_id.clone())
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.collect(),
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commitments: self.commitments.clone(),
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}
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}
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}
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@ -307,44 +441,96 @@ impl std::error::Error for ManifestError {}
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impl ManifestBody {
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pub fn manifest_id(&self) -> Result<String, serde_json::Error> {
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self.manifest_id_blake3()
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}
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pub fn manifest_id_blake3(&self) -> Result<String, serde_json::Error> {
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let bytes = serde_json::to_vec(self)?;
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Ok(blake3::hash(&bytes).to_hex().to_string())
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}
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pub fn manifest_id_keccak256(&self) -> Result<String, serde_json::Error> {
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let bytes = serde_json::to_vec(self)?;
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Ok(hex::encode(keccak256(&bytes)))
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}
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}
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pub fn merkle_root_from_hashes(hashes: &[String]) -> Result<String, ManifestError> {
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fn parse_hash32(value: &str) -> Result<[u8; 32], ManifestError> {
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let trimmed = value.trim().strip_prefix("0x").unwrap_or(value.trim());
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let bytes = hex::decode(trimmed).map_err(|_| ManifestError::InvalidHash(value.to_string()))?;
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if bytes.len() != 32 {
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return Err(ManifestError::InvalidHash(value.to_string()));
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}
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let mut out = [0u8; 32];
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out.copy_from_slice(&bytes);
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Ok(out)
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}
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fn keccak256(bytes: &[u8]) -> [u8; 32] {
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let mut hasher = Keccak256::new();
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hasher.update(bytes);
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let digest = hasher.finalize();
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let mut out = [0u8; 32];
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out.copy_from_slice(&digest);
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out
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}
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fn blake3_pair_hash(left: &[u8; 32], right: &[u8; 32]) -> [u8; 32] {
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let mut hasher = blake3::Hasher::new();
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hasher.update(left);
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hasher.update(right);
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*hasher.finalize().as_bytes()
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}
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fn keccak_pair_hash(left: &[u8; 32], right: &[u8; 32]) -> [u8; 32] {
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let mut merged = [0u8; 64];
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merged[..32].copy_from_slice(left);
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merged[32..].copy_from_slice(right);
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keccak256(&merged)
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}
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fn merkle_root_from_hashes_with(
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hashes: &[String],
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pair_hash: fn(&[u8; 32], &[u8; 32]) -> [u8; 32],
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) -> Result<String, ManifestError> {
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if hashes.is_empty() {
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return Err(ManifestError::Empty);
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}
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let mut nodes: Vec<blake3::Hash> = Vec::with_capacity(hashes.len());
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let mut nodes: Vec<[u8; 32]> = Vec::with_capacity(hashes.len());
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for hash in hashes {
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let parsed = blake3::Hash::from_hex(hash.as_bytes())
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.map_err(|_| ManifestError::InvalidHash(hash.clone()))?;
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nodes.push(parsed);
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nodes.push(parse_hash32(hash)?);
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}
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while nodes.len() > 1 {
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if nodes.len() % 2 == 1 {
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if let Some(last) = nodes.last().cloned() {
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if let Some(last) = nodes.last().copied() {
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nodes.push(last);
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}
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}
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let mut parents = Vec::with_capacity(nodes.len() / 2);
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for pair in nodes.chunks(2) {
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let left = pair[0].as_bytes();
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let right = pair[1].as_bytes();
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let mut merged = [0u8; 64];
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merged[..32].copy_from_slice(left);
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merged[32..].copy_from_slice(right);
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parents.push(blake3::hash(&merged));
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parents.push(pair_hash(&pair[0], &pair[1]));
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}
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nodes = parents;
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}
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Ok(nodes[0].to_hex().to_string())
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Ok(hex::encode(nodes[0]))
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}
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pub fn merkle_proof_for_index(
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pub fn merkle_root_from_hashes(hashes: &[String]) -> Result<String, ManifestError> {
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blake3_merkle_root_from_hashes(hashes)
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}
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pub fn blake3_merkle_root_from_hashes(hashes: &[String]) -> Result<String, ManifestError> {
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merkle_root_from_hashes_with(hashes, blake3_pair_hash)
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}
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pub fn keccak_merkle_root_from_hashes(hashes: &[String]) -> Result<String, ManifestError> {
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merkle_root_from_hashes_with(hashes, keccak_pair_hash)
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}
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fn merkle_proof_for_index_with(
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hashes: &[String],
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index: usize,
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pair_hash: fn(&[u8; 32], &[u8; 32]) -> [u8; 32],
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) -> Result<Vec<String>, ManifestError> {
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if hashes.is_empty() {
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return Err(ManifestError::Empty);
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@ -355,18 +541,16 @@ pub fn merkle_proof_for_index(
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)));
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}
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let mut nodes: Vec<blake3::Hash> = Vec::with_capacity(hashes.len());
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let mut nodes: Vec<[u8; 32]> = Vec::with_capacity(hashes.len());
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for hash in hashes {
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let parsed = blake3::Hash::from_hex(hash.as_bytes())
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.map_err(|_| ManifestError::InvalidHash(hash.clone()))?;
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nodes.push(parsed);
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nodes.push(parse_hash32(hash)?);
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}
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let mut proof = Vec::new();
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let mut pos = index;
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while nodes.len() > 1 {
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if nodes.len() % 2 == 1 {
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if let Some(last) = nodes.last().cloned() {
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if let Some(last) = nodes.last().copied() {
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nodes.push(last);
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}
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}
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@ -375,16 +559,11 @@ pub fn merkle_proof_for_index(
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let sibling = nodes
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.get(sibling_index)
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.ok_or_else(|| ManifestError::InvalidHash("missing sibling".to_string()))?;
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proof.push(sibling.to_hex().to_string());
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proof.push(hex::encode(sibling));
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let mut parents = Vec::with_capacity(nodes.len() / 2);
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for pair in nodes.chunks(2) {
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let left = pair[0].as_bytes();
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let right = pair[1].as_bytes();
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let mut merged = [0u8; 64];
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merged[..32].copy_from_slice(left);
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merged[32..].copy_from_slice(right);
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parents.push(blake3::hash(&merged));
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parents.push(pair_hash(&pair[0], &pair[1]));
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}
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nodes = parents;
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pos /= 2;
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|
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@ -393,17 +572,39 @@ pub fn merkle_proof_for_index(
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Ok(proof)
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}
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pub fn verify_merkle_proof(
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pub fn merkle_proof_for_index(
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hashes: &[String],
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index: usize,
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) -> Result<Vec<String>, ManifestError> {
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blake3_merkle_proof_for_index(hashes, index)
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}
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pub fn blake3_merkle_proof_for_index(
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hashes: &[String],
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index: usize,
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) -> Result<Vec<String>, ManifestError> {
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merkle_proof_for_index_with(hashes, index, blake3_pair_hash)
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}
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pub fn keccak_merkle_proof_for_index(
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hashes: &[String],
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index: usize,
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) -> Result<Vec<String>, ManifestError> {
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merkle_proof_for_index_with(hashes, index, keccak_pair_hash)
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}
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|
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fn verify_merkle_proof_with(
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leaf_hash: &str,
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mut index: usize,
|
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branch: &[String],
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expected_root: &str,
|
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pair_hash: fn(&[u8; 32], &[u8; 32]) -> [u8; 32],
|
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) -> bool {
|
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let Ok(mut acc) = blake3::Hash::from_hex(leaf_hash.as_bytes()) else {
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let Ok(mut acc) = parse_hash32(leaf_hash) else {
|
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return false;
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};
|
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for sibling_hex in branch {
|
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let Ok(sibling) = blake3::Hash::from_hex(sibling_hex.as_bytes()) else {
|
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let Ok(sibling) = parse_hash32(sibling_hex) else {
|
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return false;
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};
|
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let (left, right) = if index % 2 == 0 {
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|
|
@ -411,13 +612,40 @@ pub fn verify_merkle_proof(
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} else {
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(sibling, acc)
|
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};
|
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let mut merged = [0u8; 64];
|
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merged[..32].copy_from_slice(left.as_bytes());
|
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merged[32..].copy_from_slice(right.as_bytes());
|
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acc = blake3::hash(&merged);
|
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acc = pair_hash(&left, &right);
|
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index /= 2;
|
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}
|
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acc.to_hex().to_string() == expected_root
|
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match parse_hash32(expected_root) {
|
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Ok(root) => acc == root,
|
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Err(_) => false,
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}
|
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}
|
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|
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pub fn verify_merkle_proof(
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leaf_hash: &str,
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index: usize,
|
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branch: &[String],
|
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expected_root: &str,
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) -> bool {
|
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verify_blake3_merkle_proof(leaf_hash, index, branch, expected_root)
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}
|
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|
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pub fn verify_blake3_merkle_proof(
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leaf_hash: &str,
|
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index: usize,
|
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branch: &[String],
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expected_root: &str,
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) -> bool {
|
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verify_merkle_proof_with(leaf_hash, index, branch, expected_root, blake3_pair_hash)
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}
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|
||||
pub fn verify_keccak_merkle_proof(
|
||||
leaf_hash: &str,
|
||||
index: usize,
|
||||
branch: &[String],
|
||||
expected_root: &str,
|
||||
) -> bool {
|
||||
verify_merkle_proof_with(leaf_hash, index, branch, expected_root, keccak_pair_hash)
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
|
|
@ -446,11 +674,39 @@ mod tests {
|
|||
assert_ne!(id1, id2);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn manifest_id_defaults_to_blake3() {
|
||||
let body = ManifestBody {
|
||||
stream_id: StreamId("s".to_string()),
|
||||
epoch_id: "e".to_string(),
|
||||
chunk_duration_ms: 2000,
|
||||
total_chunks: 1,
|
||||
chunk_start_index: 0,
|
||||
encoder_profile_id: "p".to_string(),
|
||||
merkle_root: "00".repeat(32),
|
||||
created_unix_ms: 1,
|
||||
metadata: Vec::new(),
|
||||
chunk_hashes: vec!["11".repeat(32)],
|
||||
variants: None,
|
||||
};
|
||||
let bytes = serde_json::to_vec(&body).unwrap();
|
||||
assert_eq!(
|
||||
body.manifest_id().unwrap(),
|
||||
blake3::hash(&bytes).to_hex().to_string()
|
||||
);
|
||||
assert_ne!(
|
||||
body.manifest_id().unwrap(),
|
||||
body.manifest_id_keccak256().unwrap()
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn merkle_root_single_is_leaf() {
|
||||
let leaf = blake3::hash(b"leaf").to_hex().to_string();
|
||||
let root = merkle_root_from_hashes(&[leaf.clone()]).unwrap();
|
||||
assert_eq!(root, leaf);
|
||||
let keccak_root = keccak_merkle_root_from_hashes(&[leaf.clone()]).unwrap();
|
||||
assert_eq!(keccak_root, leaf);
|
||||
}
|
||||
|
||||
#[test]
|
||||
|
|
@ -476,6 +732,23 @@ mod tests {
|
|||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn keccak_merkle_proof_roundtrip_small_sets() {
|
||||
for size in 1..=9usize {
|
||||
let leaves = (0..size)
|
||||
.map(|i| blake3::hash(&[i as u8]).to_hex().to_string())
|
||||
.collect::<Vec<_>>();
|
||||
let root = keccak_merkle_root_from_hashes(&leaves).unwrap();
|
||||
for idx in 0..size {
|
||||
let proof = keccak_merkle_proof_for_index(&leaves, idx).unwrap();
|
||||
assert!(
|
||||
verify_keccak_merkle_proof(&leaves[idx], idx, &proof, &root),
|
||||
"size {size} idx {idx} failed"
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn merkle_proof_detects_tampering() {
|
||||
let leaves = (0..4usize)
|
||||
|
|
@ -486,4 +759,90 @@ mod tests {
|
|||
proof[0] = blake3::hash(b"evil").to_hex().to_string();
|
||||
assert!(!verify_merkle_proof(&leaves[2], 2, &proof, &root));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn channel_broadcast_id_uses_typed_and_extra_metadata() {
|
||||
let channel = Channel {
|
||||
id: ChannelId("kcbs".to_string()),
|
||||
name: "KCBS-HD".to_string(),
|
||||
number: Some("2.1".to_string()),
|
||||
program_id: Some(3),
|
||||
metadata: vec![
|
||||
ChannelMetadata::Callsign("KCBS".to_string()),
|
||||
ChannelMetadata::Region("los-angeles".to_string()),
|
||||
ChannelMetadata::Extra("tsid".to_string(), "42".to_string()),
|
||||
ChannelMetadata::Extra("frequency".to_string(), "573000000".to_string()),
|
||||
],
|
||||
};
|
||||
|
||||
let broadcast = channel.broadcast_id("ATSC").unwrap();
|
||||
assert_eq!(broadcast.standard, "atsc");
|
||||
assert_eq!(broadcast.transport_stream_id, Some(42));
|
||||
assert_eq!(broadcast.program_number, Some(3));
|
||||
assert_eq!(broadcast.virtual_channel.as_deref(), Some("2.1"));
|
||||
assert_eq!(broadcast.callsign.as_deref(), Some("KCBS"));
|
||||
assert_eq!(broadcast.region.as_deref(), Some("los-angeles"));
|
||||
assert_eq!(broadcast.frequency.as_deref(), Some("573000000"));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn stream_key_prefers_broadcast_scope_when_channel_identity_exists() {
|
||||
let channel = Channel {
|
||||
id: ChannelId("kcbs".to_string()),
|
||||
name: "KCBS-HD".to_string(),
|
||||
number: Some("2.1".to_string()),
|
||||
program_id: None,
|
||||
metadata: vec![ChannelMetadata::Callsign("KCBS".to_string())],
|
||||
};
|
||||
let source = SourceId {
|
||||
kind: "hdhr".to_string(),
|
||||
device_id: Some("ABCDEF01".to_string()),
|
||||
channel: Some("2.1".to_string()),
|
||||
};
|
||||
|
||||
let key = StreamKey::for_channel_or_source(
|
||||
Some(&channel),
|
||||
Some("atsc"),
|
||||
source,
|
||||
Some("chunk-2000ms".to_string()),
|
||||
None,
|
||||
);
|
||||
|
||||
assert!(key.broadcast.is_some());
|
||||
assert!(key.source.is_none());
|
||||
assert_eq!(
|
||||
key.to_stream_id().0,
|
||||
"ec/stream/v1/broadcast/atsc/channel-2_1/callsign-kcbs/profile-chunk-2000ms"
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn stream_key_falls_back_to_source_scope_without_channel_identity() {
|
||||
let channel = Channel {
|
||||
id: ChannelId("unknown".to_string()),
|
||||
name: "".to_string(),
|
||||
number: None,
|
||||
program_id: None,
|
||||
metadata: Vec::new(),
|
||||
};
|
||||
let source = SourceId {
|
||||
kind: "ts".to_string(),
|
||||
device_id: None,
|
||||
channel: Some("file.ts".to_string()),
|
||||
};
|
||||
|
||||
let key = StreamKey::for_channel_or_source(
|
||||
Some(&channel),
|
||||
Some("atsc"),
|
||||
source,
|
||||
Some("chunk-2000ms".to_string()),
|
||||
None,
|
||||
);
|
||||
|
||||
assert!(key.broadcast.is_none());
|
||||
assert_eq!(
|
||||
key.to_stream_id().0,
|
||||
"ec/stream/v1/source/ts/channel-file_ts/profile-chunk-2000ms"
|
||||
);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue