Meshtastic-Android/app/src/main/java/com/geeksville/mesh/service/MeshTracerouteHandler.kt

105 lines
4.3 KiB
Kotlin

/*
* Copyright (c) 2025-2026 Meshtastic LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.geeksville.mesh.service
import co.touchlab.kermit.Logger
import com.geeksville.mesh.concurrent.handledLaunch
import com.meshtastic.core.strings.getString
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.SupervisorJob
import org.meshtastic.core.data.repository.NodeRepository
import org.meshtastic.core.data.repository.TracerouteSnapshotRepository
import org.meshtastic.core.model.fullRouteDiscovery
import org.meshtastic.core.model.getFullTracerouteResponse
import org.meshtastic.core.service.ServiceRepository
import org.meshtastic.core.service.TracerouteResponse
import org.meshtastic.core.strings.Res
import org.meshtastic.core.strings.unknown_username
import org.meshtastic.proto.MeshProtos.MeshPacket
import java.util.Locale
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
class MeshTracerouteHandler
@Inject
constructor(
private val nodeManager: MeshNodeManager,
private val serviceRepository: ServiceRepository,
private val tracerouteSnapshotRepository: TracerouteSnapshotRepository,
private val nodeRepository: NodeRepository,
private val commandSender: MeshCommandSender,
) {
private var scope: CoroutineScope = CoroutineScope(Dispatchers.IO + SupervisorJob())
fun start(scope: CoroutineScope) {
this.scope = scope
}
fun handleTraceroute(packet: MeshPacket, logUuid: String?, logInsertJob: kotlinx.coroutines.Job?) {
val full =
packet.getFullTracerouteResponse { num ->
nodeManager.nodeDBbyNodeNum[num]?.let { "${it.longName} (${it.shortName})" }
?: getString(Res.string.unknown_username)
} ?: return
val requestId = packet.decoded.requestId
if (logUuid != null) {
scope.handledLaunch {
logInsertJob?.join()
val routeDiscovery = packet.fullRouteDiscovery
val forwardRoute = routeDiscovery?.routeList.orEmpty()
val returnRoute = routeDiscovery?.routeBackList.orEmpty()
val routeNodeNums = (forwardRoute + returnRoute).distinct()
val nodeDbByNum = nodeRepository.nodeDBbyNum.value
val snapshotPositions =
routeNodeNums.mapNotNull { num -> nodeDbByNum[num]?.validPosition?.let { num to it } }.toMap()
tracerouteSnapshotRepository.upsertSnapshotPositions(logUuid, requestId, snapshotPositions)
}
}
val start = commandSender.tracerouteStartTimes.remove(requestId)
val responseText =
if (start != null) {
val elapsedMs = System.currentTimeMillis() - start
val seconds = elapsedMs / MILLISECONDS_IN_SECOND
Logger.i { "Traceroute $requestId complete in $seconds s" }
String.format(Locale.US, "%s\n\nDuration: %.1f s", full, seconds)
} else {
full
}
val routeDiscovery = packet.fullRouteDiscovery
val destination = routeDiscovery?.routeList?.firstOrNull() ?: routeDiscovery?.routeBackList?.lastOrNull() ?: 0
serviceRepository.setTracerouteResponse(
TracerouteResponse(
message = responseText,
destinationNodeNum = destination,
requestId = requestId,
forwardRoute = routeDiscovery?.routeList.orEmpty(),
returnRoute = routeDiscovery?.routeBackList.orEmpty(),
logUuid = logUuid,
),
)
}
companion object {
private const val MILLISECONDS_IN_SECOND = 1000.0
}
}