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SNMP Initial Commits
This commit introduces a new SNMP monitor feature to the application, allowing users to monitor devices using SNMP (Simple Network Management Protocol).
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parent
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commit
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10
db/knex_migrations/2024-04-26-0000-snmp-monitor.js
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10
db/knex_migrations/2024-04-26-0000-snmp-monitor.js
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@ -0,0 +1,10 @@
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exports.up = function (knex) {
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return knex.schema
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.alterTable("monitor", function (table) {
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table.string("snmp_community_string", 255).defaultTo("public"); // Add community_string column
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table.string("snmp_oid").notNullable(); // Add oid column
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table.enum("snmp_version", ["1", "2c", "3"]).defaultTo("2c"); // Add snmp_version column with enum values
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table.float("snmp_control_value").notNullable(); // Add control_value column as float
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table.string("snmp_condition").notNullable(); // Add oid column
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});
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};
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6
package-lock.json
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6
package-lock.json
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@ -72,6 +72,7 @@
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"redbean-node": "~0.3.0",
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"redis": "~4.5.1",
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"semver": "~7.5.4",
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"snmp-native": "^1.2.0",
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"socket.io": "~4.6.1",
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"socket.io-client": "~4.6.1",
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"socks-proxy-agent": "6.1.1",
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@ -12609,6 +12610,11 @@
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"npm": ">= 3.0.0"
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}
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},
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"node_modules/snmp-native": {
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"version": "1.2.0",
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"resolved": "https://registry.npmjs.org/snmp-native/-/snmp-native-1.2.0.tgz",
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"integrity": "sha512-JIyuLX3bQmuAI4gHztHSQd3M/M2hqgLhiHBZYEk8YnYRJ2ooxqwON4gUQfgp/WCZVDca4tIX3vFJgv6lz5iY+g=="
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},
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"node_modules/socket.io": {
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"version": "4.6.2",
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"resolved": "https://registry.npmjs.org/socket.io/-/socket.io-4.6.2.tgz",
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@ -137,6 +137,7 @@
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"redbean-node": "~0.3.0",
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"redis": "~4.5.1",
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"semver": "~7.5.4",
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"snmp-native": "^1.2.0",
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"socket.io": "~4.6.1",
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"socket.io-client": "~4.6.1",
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"socks-proxy-agent": "6.1.1",
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69
server/monitor-types/snmp.js
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69
server/monitor-types/snmp.js
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@ -0,0 +1,69 @@
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const { MonitorType } = require("./monitor-type");
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const { UP, DOWN } = require("../../src/util");
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const snmp = require("snmp-native");
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class SNMPMonitorType extends MonitorType {
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name = "snmp";
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/**
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* Checks the SNMP value against the condition and control value.
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* @param {object} monitor The monitor object associated with the check.
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* @param {object} heartbeat The heartbeat object to update.
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* @param {object} _server Unused server object.
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*/
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async check(monitor, heartbeat, _server) {
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try {
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const session = new snmp.Session({ host: monitor.ipAddress, community: monitor.snmpCommunityString, version: monitor.snmpVersion });
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session.get({ oid: monitor.snmpOid }, (err, varbinds) => {
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if (err) {
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heartbeat.status = DOWN;
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heartbeat.msg = `Error: ${err.message}`;
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return;
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}
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// Assuming only one varbind is returned
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const value = varbinds[0].value;
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// Convert value to appropriate type based on SNMP type (assuming it's integer or string for simplicity)
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const numericValue = parseInt(value);
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const stringValue = value.toString();
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// Check against condition and control value
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switch (monitor.snmpCondition) {
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case '>':
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heartbeat.status = numericValue > monitor.snmpControlValue ? UP : DOWN;
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break;
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case '>=':
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heartbeat.status = numericValue >= monitor.snmpControlValue ? UP : DOWN;
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break;
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case '<':
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heartbeat.status = numericValue < monitor.snmpControlValue ? UP : DOWN;
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break;
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case '<=':
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heartbeat.status = numericValue <= monitor.snmpControlValue ? UP : DOWN;
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break;
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case '==':
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heartbeat.status = value === monitor.snmpControlValue ? UP : DOWN;
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break;
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case 'contains':
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heartbeat.status = stringValue.includes(monitor.snmpControlValue) ? UP : DOWN;
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break;
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default:
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heartbeat.status = DOWN;
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heartbeat.msg = `Invalid condition: ${monitor.snmpCondition}`;
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}
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session.close();
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});
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} catch (err) {
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heartbeat.status = DOWN;
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heartbeat.msg = `Error: ${err.message}`;
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}
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}
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}
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module.exports = {
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SNMPMonitorType,
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};
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@ -113,6 +113,7 @@ class UptimeKumaServer {
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UptimeKumaServer.monitorTypeList["tailscale-ping"] = new TailscalePing();
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UptimeKumaServer.monitorTypeList["dns"] = new DnsMonitorType();
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UptimeKumaServer.monitorTypeList["mqtt"] = new MqttMonitorType();
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UptimeKumaServer.monitorTypeList["snmp"] = new SNMPMonitorType();
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// Allow all CORS origins (polling) in development
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let cors = undefined;
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@ -516,3 +517,4 @@ const { RealBrowserMonitorType } = require("./monitor-types/real-browser-monitor
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const { TailscalePing } = require("./monitor-types/tailscale-ping");
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const { DnsMonitorType } = require("./monitor-types/dns");
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const { MqttMonitorType } = require("./monitor-types/mqtt");
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const { SNMPMonitorType } = require("./monitor-types/snmp");
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BIN
src/pages/.EditMonitor.vue.swp
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BIN
src/pages/.EditMonitor.vue.swp
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