commit 40d7457c82187e054a5b30c37041282cb51a4a1f
Author: Brian <165865819+brianshea2@users.noreply.github.com>
Date: Mon May 6 18:47:19 2024 -0400
initial public commit
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bb84b46
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+internal/meshtastic/generated/*
+website/nodes.json
diff --git a/COPYRIGHT b/COPYRIGHT
new file mode 100644
index 0000000..9b10a2f
--- /dev/null
+++ b/COPYRIGHT
@@ -0,0 +1,14 @@
+Copyright (C) 2024 Brian Shea
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see .
diff --git a/Dockerfile.meshobserv b/Dockerfile.meshobserv
new file mode 100644
index 0000000..9ba37bf
--- /dev/null
+++ b/Dockerfile.meshobserv
@@ -0,0 +1,11 @@
+FROM golang:latest AS build
+WORKDIR /build
+COPY go.mod ./
+COPY cmd/meshobserv ./
+COPY internal ./internal/
+RUN go mod tidy
+RUN go build -v -o meshobserv
+
+FROM debian:bookworm-slim
+COPY --from=build /build/meshobserv /usr/bin/
+ENTRYPOINT ["/usr/bin/meshobserv"]
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..0ad25db
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,661 @@
+ GNU AFFERO GENERAL PUBLIC LICENSE
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+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..cef60d6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+# [MeshMap.net](https://meshmap.net/)
+A nearly live map of Meshtastic nodes seen by the official Meshtastic MQTT server
diff --git a/cmd/meshobserv/meshobserv.go b/cmd/meshobserv/meshobserv.go
new file mode 100644
index 0000000..f2e3ec4
--- /dev/null
+++ b/cmd/meshobserv/meshobserv.go
@@ -0,0 +1,221 @@
+package main
+
+import (
+ "errors"
+ "flag"
+ "io/fs"
+ "log"
+ "os"
+ "os/signal"
+ "regexp"
+ "sync"
+ "sync/atomic"
+ "syscall"
+ "time"
+
+ "github.com/brianshea2/meshmap.net/internal/meshtastic"
+ "github.com/brianshea2/meshmap.net/internal/meshtastic/generated"
+ "google.golang.org/protobuf/proto"
+)
+
+const (
+ NodeExpiration = 172800 // 2 days
+ PruneWriteInterval = time.Minute
+)
+
+var (
+ Nodes meshtastic.NodeDB
+ NodesMutex sync.Mutex
+ Receiving atomic.Bool
+)
+
+func handleMessage(from uint32, topic string, portNum generated.PortNum, payload []byte) {
+ Receiving.Store(true)
+ switch portNum {
+ case generated.PortNum_TEXT_MESSAGE_APP:
+ log.Printf("[msg] %v (%v) %s: \"%s\"", from, topic, portNum, payload)
+ case generated.PortNum_POSITION_APP:
+ var position generated.Position
+ if err := proto.Unmarshal(payload, &position); err != nil {
+ log.Printf("[warn] could not parse Position payload from %v on %v: %v", from, topic, err)
+ return
+ }
+ latitude := position.GetLatitudeI()
+ longitude := position.GetLongitudeI()
+ precision := position.GetPrecisionBits()
+ log.Printf("[msg] %v (%v) %s: (%v, %v) %v/32", from, topic, portNum, latitude, longitude, precision)
+ if latitude == 0 && longitude == 0 {
+ return
+ }
+ NodesMutex.Lock()
+ if Nodes[from] == nil {
+ Nodes[from] = meshtastic.NewNode(topic)
+ }
+ Nodes[from].UpdatePosition(latitude, longitude, precision)
+ Nodes[from].UpdateSeenBy(topic)
+ NodesMutex.Unlock()
+ case generated.PortNum_NODEINFO_APP:
+ var user generated.User
+ if err := proto.Unmarshal(payload, &user); err != nil {
+ log.Printf("[warn] could not parse User payload from %v on %v: %v", from, topic, err)
+ return
+ }
+ longName := user.GetLongName()
+ shortName := user.GetShortName()
+ hwModel := user.GetHwModel().String()
+ role := user.GetRole().String()
+ log.Printf("[msg] %v (%v) %s: {\"%v\" \"%v\" %v %v}", from, topic, portNum, longName, shortName, hwModel, role)
+ if len(longName) == 0 {
+ return
+ }
+ NodesMutex.Lock()
+ if Nodes[from] == nil {
+ Nodes[from] = meshtastic.NewNode(topic)
+ }
+ Nodes[from].UpdateUser(longName, shortName, hwModel, role)
+ NodesMutex.Unlock()
+ case generated.PortNum_TELEMETRY_APP:
+ var telemetry generated.Telemetry
+ if err := proto.Unmarshal(payload, &telemetry); err != nil {
+ log.Printf("[warn] could not parse Telemetry payload from %v on %v: %v", from, topic, err)
+ return
+ }
+ if deviceMetrics := telemetry.GetDeviceMetrics(); deviceMetrics != nil {
+ batteryLevel := deviceMetrics.GetBatteryLevel()
+ voltage := deviceMetrics.GetVoltage()
+ chUtil := deviceMetrics.GetChannelUtilization()
+ airUtilTx := deviceMetrics.GetAirUtilTx()
+ uptime := deviceMetrics.GetUptimeSeconds()
+ log.Printf(
+ "[msg] %v (%v) %s: DeviceMetrics{power: %v%% (%vV); chUtil: %v%%; airUtilTx: %v%%; uptime: %vs}",
+ from, topic, portNum, batteryLevel, voltage, chUtil, airUtilTx, uptime,
+ )
+ NodesMutex.Lock()
+ if Nodes[from] == nil {
+ Nodes[from] = meshtastic.NewNode(topic)
+ }
+ Nodes[from].UpdateDeviceMetrics(batteryLevel, voltage, chUtil, airUtilTx, uptime)
+ NodesMutex.Unlock()
+ }
+ case generated.PortNum_NEIGHBORINFO_APP:
+ var neighborInfo generated.NeighborInfo
+ if err := proto.Unmarshal(payload, &neighborInfo); err != nil {
+ log.Printf("[warn] could not parse NeighborInfo payload from %v on %v: %v", from, topic, err)
+ return
+ }
+ nodeNum := neighborInfo.GetNodeId()
+ neighbors := neighborInfo.GetNeighbors()
+ log.Printf("[msg] %v (%v) %s: %v <-> %v neighbors", from, topic, portNum, nodeNum, len(neighbors))
+ if nodeNum != from {
+ return
+ }
+ if len(neighbors) == 0 {
+ return
+ }
+ NodesMutex.Lock()
+ if Nodes[from] == nil {
+ Nodes[from] = meshtastic.NewNode(topic)
+ }
+ for _, neighbor := range neighbors {
+ neighborNum := neighbor.GetNodeId()
+ if neighborNum == 0 {
+ continue
+ }
+ Nodes[from].UpdateNeighborInfo(neighborNum, neighbor.GetSnr())
+ }
+ NodesMutex.Unlock()
+ case generated.PortNum_MAP_REPORT_APP:
+ var mapReport generated.MapReport
+ if err := proto.Unmarshal(payload, &mapReport); err != nil {
+ log.Printf("[warn] could not parse MapReport payload from %v on %v: %v", from, topic, err)
+ return
+ }
+ longName := mapReport.GetLongName()
+ shortName := mapReport.GetShortName()
+ hwModel := mapReport.GetHwModel().String()
+ role := mapReport.GetRole().String()
+ fwVersion := mapReport.GetFirmwareVersion()
+ region := mapReport.GetRegion().String()
+ modemPreset := mapReport.GetModemPreset().String()
+ hasDefaultCh := mapReport.GetHasDefaultChannel()
+ latitude := mapReport.GetLatitudeI()
+ longitude := mapReport.GetLongitudeI()
+ precision := mapReport.GetPositionPrecision()
+ log.Printf(
+ "[msg] %v (%v) %s: {\"%v\" \"%v\" %v %v %v %v %v %v} (%v, %v) %v/32",
+ from, topic, portNum,
+ longName, shortName, hwModel, role, fwVersion, region, modemPreset, hasDefaultCh,
+ latitude, longitude, precision,
+ )
+ if len(longName) == 0 {
+ return
+ }
+ if latitude == 0 && longitude == 0 {
+ return
+ }
+ NodesMutex.Lock()
+ if Nodes[from] == nil {
+ Nodes[from] = meshtastic.NewNode(topic)
+ }
+ Nodes[from].UpdateUser(longName, shortName, hwModel, role)
+ Nodes[from].UpdateMapReport(fwVersion, region, modemPreset, hasDefaultCh)
+ Nodes[from].UpdatePosition(latitude, longitude, precision)
+ Nodes[from].UpdateSeenBy(topic)
+ NodesMutex.Unlock()
+ default:
+ log.Printf("[msg] %v (%v) %s", from, topic, portNum)
+ }
+}
+
+func main() {
+ var dbPath string
+ flag.StringVar(&dbPath, "f", "", "node database `file`")
+ flag.Parse()
+ // load or make NodeDB
+ if len(dbPath) > 0 {
+ err := Nodes.LoadFile(dbPath)
+ if err != nil && !errors.Is(err, fs.ErrNotExist) {
+ log.Fatalf("[error] load nodes: %v", err)
+ }
+ log.Printf("[info] loaded %v nodes from disk", len(Nodes))
+ }
+ if Nodes == nil {
+ Nodes = make(meshtastic.NodeDB)
+ }
+ // connect to MQTT
+ client := &meshtastic.MQTTClient{
+ TopicRegex: regexp.MustCompile(`/2/[ce]/[^/]+/![0-9a-f]+$|/2/map/$`),
+ BlockCipher: meshtastic.NewBlockCipher(meshtastic.DefaultKey),
+ MessageHandler: handleMessage,
+ }
+ err := client.Connect()
+ if err != nil {
+ log.Fatalf("[error] connect: %v", err)
+ }
+ // start NodeDB prune and write loop
+ go func() {
+ for {
+ time.Sleep(PruneWriteInterval)
+ NodesMutex.Lock()
+ Nodes.Prune(NodeExpiration, NodeExpiration, NodeExpiration, NodeExpiration)
+ if len(dbPath) > 0 {
+ valid := Nodes.GetValid()
+ err := valid.WriteFile(dbPath)
+ if err != nil {
+ log.Fatalf("[error] write nodes: %v", err)
+ }
+ log.Printf("[info] wrote %v nodes to disk", len(valid))
+ }
+ NodesMutex.Unlock()
+ if !Receiving.CompareAndSwap(true, false) {
+ log.Fatal("[crit] no messages received")
+ }
+ }
+ }()
+ // wait until exit
+ terminate := make(chan os.Signal, 1)
+ signal.Notify(terminate, syscall.SIGINT, syscall.SIGTERM)
+ <-terminate
+ log.Print("[info] exiting")
+ client.Disconnect()
+}
diff --git a/configs/nginx-http.conf b/configs/nginx-http.conf
new file mode 100644
index 0000000..051d77d
--- /dev/null
+++ b/configs/nginx-http.conf
@@ -0,0 +1,12 @@
+server {
+ listen 80;
+ listen [::]:80;
+ server_name meshmap.net;
+ root /data/meshmap.net/website;
+ location / {
+ index index.html;
+ try_files $uri $uri/ =404;
+ add_header Cache-Control "public, max-age=60";
+ add_header Vary "Accept-Encoding";
+ }
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..a8aad77
--- /dev/null
+++ b/go.mod
@@ -0,0 +1 @@
+module github.com/brianshea2/meshmap.net
diff --git a/internal/meshtastic/mqtt.go b/internal/meshtastic/mqtt.go
new file mode 100644
index 0000000..3bde51c
--- /dev/null
+++ b/internal/meshtastic/mqtt.go
@@ -0,0 +1,131 @@
+package meshtastic
+
+import (
+ "crypto/aes"
+ "crypto/cipher"
+ "crypto/rand"
+ "encoding/binary"
+ "fmt"
+ "log"
+ "os"
+ "regexp"
+ "time"
+
+ "github.com/brianshea2/meshmap.net/internal/meshtastic/generated"
+ mqtt "github.com/eclipse/paho.mqtt.golang"
+ "google.golang.org/protobuf/proto"
+)
+
+const RootTopic = "msh/#"
+
+var DefaultKey = []byte{
+ 0xd4, 0xf1, 0xbb, 0x3a,
+ 0x20, 0x29, 0x07, 0x59,
+ 0xf0, 0xbc, 0xff, 0xab,
+ 0xcf, 0x4e, 0x69, 0x01,
+}
+
+func NewBlockCipher(key []byte) cipher.Block {
+ c, err := aes.NewCipher(key)
+ if err != nil {
+ panic(err)
+ }
+ return c
+}
+
+type MQTTClient struct {
+ TopicRegex *regexp.Regexp
+ BlockCipher cipher.Block
+ MessageHandler func(from uint32, topic string, portNum generated.PortNum, payload []byte)
+ mqtt.Client
+}
+
+func (c *MQTTClient) Connect() error {
+ randomId := make([]byte, 4)
+ rand.Read(randomId)
+ opts := mqtt.NewClientOptions()
+ opts.AddBroker("tcp://mqtt.meshtastic.org:1883")
+ opts.SetClientID(fmt.Sprintf("meshobserv-%x", randomId))
+ opts.SetUsername("meshdev")
+ opts.SetPassword("large4cats")
+ opts.SetOrderMatters(false)
+ opts.SetDefaultPublishHandler(c.handleMessage)
+ c.Client = mqtt.NewClient(opts)
+ token := c.Client.Connect()
+ <-token.Done()
+ if err := token.Error(); err != nil {
+ return err
+ }
+ log.Print("[info] connected")
+ token = c.Subscribe(RootTopic, 0, nil)
+ <-token.Done()
+ if err := token.Error(); err != nil {
+ return err
+ }
+ log.Print("[info] subscribed")
+ return nil
+}
+
+func (c *MQTTClient) Disconnect() {
+ if c.IsConnected() {
+ if c.Unsubscribe(RootTopic).WaitTimeout(time.Second) {
+ log.Print("[info] unsubscribed")
+ }
+ c.Client.Disconnect(1000)
+ }
+}
+
+func (c *MQTTClient) handleMessage(_ mqtt.Client, msg mqtt.Message) {
+ // filter topic
+ topic := msg.Topic()
+ if !c.TopicRegex.MatchString(topic) {
+ return
+ }
+ // parse ServiceEnvelope
+ var envelope generated.ServiceEnvelope
+ if err := proto.Unmarshal(msg.Payload(), &envelope); err != nil {
+ log.Printf("[warn] could not parse ServiceEnvelope on %v: %v", topic, err)
+ return
+ }
+ // get MeshPacket
+ packet := envelope.GetPacket()
+ if packet == nil {
+ log.Printf("[warn] skipping ServiceEnvelope with no MeshPacket on %v", topic)
+ return
+ }
+ // no anonymous packets
+ from := packet.GetFrom()
+ if from == 0 {
+ log.Printf("[warn] skipping MeshPacket from unknown on %v", topic)
+ return
+ }
+ // get Data, try decoded first
+ data := packet.GetDecoded()
+ if data == nil {
+ // data must be (probably) encrypted
+ encrypted := packet.GetEncrypted()
+ if encrypted == nil {
+ log.Printf("[warn] skipping MeshPacket from %v with no data on %v", from, topic)
+ return
+ }
+ // decrypt
+ nonce := make([]byte, 16)
+ binary.LittleEndian.PutUint32(nonce[0:], packet.GetId())
+ binary.LittleEndian.PutUint32(nonce[8:], from)
+ decrypted := make([]byte, len(encrypted))
+ cipher.NewCTR(c.BlockCipher, nonce).XORKeyStream(decrypted, encrypted)
+ // parse Data
+ data = new(generated.Data)
+ if err := proto.Unmarshal(decrypted, data); err != nil {
+ // ignore, probably encrypted with other psk
+ return
+ }
+ }
+ c.MessageHandler(from, topic, data.GetPortnum(), data.GetPayload())
+}
+
+func init() {
+ mqtt.ERROR = log.New(os.Stderr, "[error] mqtt: ", log.Flags()|log.Lmsgprefix)
+ mqtt.CRITICAL = log.New(os.Stderr, "[crit] mqtt: ", log.Flags()|log.Lmsgprefix)
+ mqtt.WARN = log.New(os.Stderr, "[warn] mqtt: ", log.Flags()|log.Lmsgprefix)
+}
diff --git a/internal/meshtastic/node.go b/internal/meshtastic/node.go
new file mode 100644
index 0000000..505a5f2
--- /dev/null
+++ b/internal/meshtastic/node.go
@@ -0,0 +1,224 @@
+package meshtastic
+
+import (
+ "encoding/json"
+ "os"
+ "path/filepath"
+ "time"
+)
+
+const (
+ SeenByLimit = 10
+ NeighborLimit = 100
+)
+
+type NeighborInfo struct {
+ Snr float32 `json:"snr,omitempty"`
+ Updated int64 `json:"updated"`
+}
+
+type Node struct {
+ // User
+ LongName string `json:"longName"`
+ ShortName string `json:"shortName"`
+ HwModel string `json:"hwModel"`
+ Role string `json:"role"`
+ // MapReport
+ FwVersion string `json:"fwVersion,omitempty"`
+ Region string `json:"region,omitempty"`
+ ModemPreset string `json:"modemPreset,omitempty"`
+ HasDefaultCh bool `json:"hasDefaultCh,omitempty"`
+ LastMapReport int64 `json:"lastMapReport,omitempty"`
+ // Position
+ Latitude int32 `json:"latitude"`
+ Longitude int32 `json:"longitude"`
+ Precision uint32 `json:"precision,omitempty"`
+ // DeviceMetrics
+ BatteryLevel uint32 `json:"batteryLevel,omitempty"`
+ Voltage float32 `json:"voltage,omitempty"`
+ ChUtil float32 `json:"chUtil,omitempty"`
+ AirUtilTx float32 `json:"airUtilTx,omitempty"`
+ Uptime uint32 `json:"uptime,omitempty"`
+ LastDeviceMetrics int64 `json:"lastDeviceMetrics,omitempty"`
+ // NeighborInfo
+ Neighbors map[uint32]*NeighborInfo `json:"neighbors,omitempty"`
+ // key=mqtt topic, value=first seen/last position update
+ SeenBy map[string]int64 `json:"seenBy"`
+}
+
+func NewNode(topic string) *Node {
+ return &Node{
+ SeenBy: map[string]int64{topic: time.Now().Unix()},
+ }
+}
+
+func (node *Node) ClearDeviceMetrics() {
+ node.BatteryLevel = 0
+ node.Voltage = 0
+ node.ChUtil = 0
+ node.AirUtilTx = 0
+ node.Uptime = 0
+ node.LastDeviceMetrics = 0
+}
+
+func (node *Node) ClearMapReportData() {
+ node.FwVersion = ""
+ node.Region = ""
+ node.ModemPreset = ""
+ node.HasDefaultCh = false
+ node.LastMapReport = 0
+}
+
+func (node *Node) IsValid() bool {
+ if len(node.SeenBy) == 0 {
+ return false
+ }
+ if len(node.LongName) == 0 {
+ return false
+ }
+ if node.Latitude == 0 && node.Longitude == 0 {
+ return false
+ }
+ return true
+}
+
+func (node *Node) Prune(seenByTtl, neighborTtl, deviceMetricsTtl, mapReportTtl int64) {
+ now := time.Now().Unix()
+ // SeenBy
+ for topic, lastSeen := range node.SeenBy {
+ if lastSeen+seenByTtl < now {
+ delete(node.SeenBy, topic)
+ }
+ }
+ for len(node.SeenBy) > SeenByLimit {
+ var toDelete string
+ for topic, lastSeen := range node.SeenBy {
+ if len(toDelete) == 0 || lastSeen < node.SeenBy[toDelete] {
+ toDelete = topic
+ }
+ }
+ delete(node.SeenBy, toDelete)
+ }
+ // Neighbors
+ for neighborNum, neighbor := range node.Neighbors {
+ if neighbor.Updated+neighborTtl < now {
+ delete(node.Neighbors, neighborNum)
+ }
+ }
+ if len(node.Neighbors) == 0 {
+ node.Neighbors = nil
+ }
+ for len(node.Neighbors) > NeighborLimit {
+ var toDelete uint32
+ for neighborNum, neighbor := range node.Neighbors {
+ if toDelete == 0 || neighbor.Updated < node.Neighbors[toDelete].Updated {
+ toDelete = neighborNum
+ }
+ }
+ delete(node.Neighbors, toDelete)
+ }
+ // DeviceMetrics
+ if node.LastDeviceMetrics > 0 && node.LastDeviceMetrics+deviceMetricsTtl < now {
+ node.ClearDeviceMetrics()
+ }
+ // MapReport
+ if node.LastMapReport > 0 && node.LastMapReport+mapReportTtl < now {
+ node.ClearMapReportData()
+ }
+}
+
+func (node *Node) UpdateDeviceMetrics(batteryLevel uint32, voltage, chUtil, airUtilTx float32, uptime uint32) {
+ node.BatteryLevel = batteryLevel
+ node.Voltage = voltage
+ node.ChUtil = chUtil
+ node.AirUtilTx = airUtilTx
+ node.Uptime = uptime
+ node.LastDeviceMetrics = time.Now().Unix()
+}
+
+func (node *Node) UpdateMapReport(fwVersion, region, modemPreset string, hasDefaultCh bool) {
+ node.FwVersion = fwVersion
+ node.Region = region
+ node.ModemPreset = modemPreset
+ node.HasDefaultCh = hasDefaultCh
+ node.LastMapReport = time.Now().Unix()
+}
+
+func (node *Node) UpdateNeighborInfo(neighborNum uint32, snr float32) {
+ if node.Neighbors == nil {
+ node.Neighbors = make(map[uint32]*NeighborInfo)
+ }
+ node.Neighbors[neighborNum] = &NeighborInfo{
+ Snr: snr,
+ Updated: time.Now().Unix(),
+ }
+}
+
+func (node *Node) UpdatePosition(latitude, longitude int32, precision uint32) {
+ node.Latitude = latitude
+ node.Longitude = longitude
+ node.Precision = precision
+}
+
+func (node *Node) UpdateSeenBy(topic string) {
+ node.SeenBy[topic] = time.Now().Unix()
+}
+
+func (node *Node) UpdateUser(longName, shortName, hwModel, role string) {
+ node.LongName = longName
+ node.ShortName = shortName
+ node.HwModel = hwModel
+ node.Role = role
+}
+
+type NodeDB map[uint32]*Node
+
+func (db NodeDB) Prune(seenByTtl, neighborTtl, deviceMetricsTtl, mapReportTtl int64) {
+ for nodeNum, node := range db {
+ node.Prune(seenByTtl, neighborTtl, deviceMetricsTtl, mapReportTtl)
+ if len(node.SeenBy) == 0 {
+ delete(db, nodeNum)
+ }
+ }
+}
+
+func (db NodeDB) GetValid() NodeDB {
+ valid := make(NodeDB)
+ for nodeNum, node := range db {
+ if node.IsValid() {
+ valid[nodeNum] = node
+ }
+ }
+ return valid
+}
+
+func (db *NodeDB) LoadFile(path string) error {
+ f, err := os.Open(path)
+ if err != nil {
+ return err
+ }
+ defer f.Close()
+ return json.NewDecoder(f).Decode(db)
+}
+
+func (db NodeDB) WriteFile(path string) error {
+ dir, file := filepath.Split(path)
+ f, err := os.CreateTemp(dir, file)
+ if err != nil {
+ return err
+ }
+ err = json.NewEncoder(f).Encode(db)
+ if err1 := f.Close(); err1 != nil && err == nil {
+ err = err1
+ }
+ if err == nil {
+ err = os.Chmod(f.Name(), 0644)
+ }
+ if err == nil {
+ err = os.Rename(f.Name(), path)
+ }
+ if err != nil {
+ os.Remove(f.Name())
+ }
+ return err
+}
diff --git a/patch/remove-nanopb.patch b/patch/remove-nanopb.patch
new file mode 100644
index 0000000..fc581eb
--- /dev/null
+++ b/patch/remove-nanopb.patch
@@ -0,0 +1,26 @@
+--- a/protobufs/meshtastic/deviceonly.proto
++++ b/protobufs/meshtastic/deviceonly.proto
+@@ -7,14 +7,12 @@ import "meshtastic/localonly.proto";
+ import "meshtastic/mesh.proto";
+ import "meshtastic/module_config.proto";
+ import "meshtastic/telemetry.proto";
+-import "nanopb.proto";
+
+ option csharp_namespace = "Meshtastic.Protobufs";
+ option go_package = "github.com/meshtastic/go/generated";
+ option java_outer_classname = "DeviceOnly";
+ option java_package = "com.geeksville.mesh";
+ option swift_prefix = "";
+-option (nanopb_fileopt).include = "";
+
+
+ /*
+@@ -191,7 +189,7 @@ message DeviceState {
+ /*
+ * New lite version of NodeDB to decrease memory footprint
+ */
+- repeated NodeInfoLite node_db_lite = 14 [(nanopb).callback_datatype = "std::vector"];
++ repeated NodeInfoLite node_db_lite = 14;
+ }
+
+ /*
diff --git a/scripts/build-meshobserv.sh b/scripts/build-meshobserv.sh
new file mode 100755
index 0000000..7b9f9af
--- /dev/null
+++ b/scripts/build-meshobserv.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+bash "$(dirname "$0")/generate-pb.sh" || exit $?
+
+docker build \
+ --no-cache \
+ --pull \
+ -f "$(dirname "$0")/../Dockerfile.meshobserv" \
+ -t meshobserv \
+ "$(dirname "$0")/.."
diff --git a/scripts/generate-pb.sh b/scripts/generate-pb.sh
new file mode 100755
index 0000000..15c3241
--- /dev/null
+++ b/scripts/generate-pb.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+docker run \
+ --rm \
+ -v "$(cd "$(dirname "$0")"; pwd)/..":/data \
+ golang \
+ bash -c "
+ apt-get update &&
+ apt-get install -y protobuf-compiler patch &&
+ go install google.golang.org/protobuf/cmd/protoc-gen-go@latest &&
+ cd /tmp &&
+ git clone --progress --depth 1 https://github.com/meshtastic/protobufs.git &&
+ patch -p1 < /data/patch/remove-nanopb.patch &&
+ rm -rf /data/internal/meshtastic/generated &&
+ protoc -I=protobufs --go_out=/data/internal/meshtastic --go_opt=module=github.com/meshtastic/go protobufs/meshtastic/*.proto
+ "
diff --git a/scripts/run-meshobserv.sh b/scripts/run-meshobserv.sh
new file mode 100755
index 0000000..3314d66
--- /dev/null
+++ b/scripts/run-meshobserv.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+docker stop meshobserv
+docker rm meshobserv
+
+docker run --name meshobserv \
+ --restart unless-stopped \
+ -v /data:/data \
+ -d meshobserv \
+ -f /data/meshmap.net/website/nodes.json
diff --git a/website/android-chrome-192x192.png b/website/android-chrome-192x192.png
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diff --git a/website/apple-touch-icon.png b/website/apple-touch-icon.png
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diff --git a/website/favicon.ico b/website/favicon.ico
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diff --git a/website/index.html b/website/index.html
new file mode 100644
index 0000000..f31b2de
--- /dev/null
+++ b/website/index.html
@@ -0,0 +1,353 @@
+
+
+
+
+
+MeshMap - Meshtastic Node Map
+
+
+
+
+
+
+
+
+