Add server log monitoring tols

This commit is contained in:
lxsang 2021-09-18 13:13:16 +02:00
parent f453769944
commit ecc54322a3
13 changed files with 615 additions and 0 deletions

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# Server log monitor
This application allows to monitor Server Syslog
using Antunnel protocol. Features:
* Realtime log monitoring
* Filter logs by pattern (regular expression), severity
* Recording last n log messages
## Change logs
* v0.1.0-b first beta version

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{
"name": "ServerLogClient",
"targets":{
"clean": {
"jobs": [
{
"name": "vfs-rm",
"data": ["build/debug","build/release"]
}
]
},
"build": {
"require": ["ts"],
"jobs":[
{
"name": "vfs-mkdir",
"data": ["build","build/debug","build/release"]
},
{
"name": "ts-import",
"data": ["sdk://core/ts/core.d.ts", "sdk://core/ts/jquery.d.ts","sdk://core/ts/antos.d.ts"]
},
{
"name": "ts-compile",
"data": {
"src": ["main.ts"],
"dest": "build/debug/main.js"
}
}
]
},
"uglify": {
"require": ["terser"],
"jobs": [
{
"name":"terser-uglify",
"data": ["build/debug/main.js"]
}
]
},
"copy": {
"jobs": [
{
"name": "vfs-cp",
"data": {
"src": [
"scheme.html",
"package.json",
"README.md",
"main.css"
],
"dest":"build/debug"
}
}
]
},
"release": {
"depend": ["clean","build","uglify", "copy"],
"require": ["zip"],
"jobs": [
{
"name": "zip-mk",
"data": {
"src":"build/debug",
"dest":"build/release/ServerLogClient.zip"
}
}
]
}
}
}

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# Server log monitor
This application allows to monitor Server Syslog
using Antunnel protocol. Features:
* Realtime log monitoring
* Filter logs by pattern (regular expression), severity
* Recording last n log messages
## Change logs
* v0.1.0-b first beta version

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afx-app-window[data-id="ServerLogClient"] p {
margin: 0;
padding: 5px;
padding-left: 10px;
padding-right: 10px;
font-family: "Courier New";
border-bottom: 1px solid gray;
}
afx-app-window[data-id="ServerLogClient"] p:hover {
background-color: gray;
}
afx-app-window[data-id="ServerLogClient"] p.debug{
color:green;
}
/*
afx-app-window[data-id="ServerLogClient"] p.notice, afx-app-window[data-id="ServerLogClient"] p.info{
color:green;
}*/
afx-app-window[data-id="ServerLogClient"] p.warning {
color: orange;
}
afx-app-window[data-id="ServerLogClient"] p.err {
color: orangered;
}
afx-app-window[data-id="ServerLogClient"] p.crit, afx-app-window[data-id="ServerLogClient"] p.alert {
color: orangered;
font-weight: bold;
}
afx-app-window[data-id="ServerLogClient"] p.emerg {
color: red;
font-weight: bold;
}
afx-app-window[data-id="ServerLogClient"] input {
height: 25px;
}
afx-app-window[data-id="ServerLogClient"] afx-hbox[data-id="top-header"] {
border-bottom: 1px solid gray;
}
afx-app-window[data-id="ServerLogClient"] afx-hbox[data-id="top-header"] afx-label.field-label{
text-align: right;
padding-top: 5px;
padding-right: 3px;
}
afx-app-window[data-id="ServerLogClient"] afx-hbox[data-id="top-header"] afx-label.field-label i.label-text{
font-weight: bold;
}

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var OS;!function(t){let e;!function(t){class e extends t.BaseApplication{constructor(t){super("ServerLogClient",t)}check(t){return!(!this.filter.record||!this.filter[t.severity_label]||this.filter.pattern&&!t.message.match(this.filter.pattern))}log(t){if(this.check(t)){if(this.logs.length>=this.filter.max_log){let t=this.logs.shift();$(t.el).remove()}t.el=$("<p />").addClass(t.severity_label),t.el.text(t.message),$(this.log_container).append(t.el),this.log_container.scrollTop=this.log_container.scrollHeight,this.logs.push(t)}}openSession(){this.sub=new Antunnel.Subscriber(this.setting.topic),this.sub.onopen=()=>{console.log("Subscribed")},this.sub.onerror=t=>{this.error(__("Unable to connect to: syslog"),t),this.sub=void 0},this.sub.onmessage=t=>{if(t.data){let e=JSON.parse(new TextDecoder("utf-8").decode(t.data));e.priority&&(e.priority=parseInt(e.priority)),e.severity&&(e.severity=parseInt(e.severity)),e.facility&&(e.facility=parseInt(e.facility)),this.log(e)}},this.sub.onclose=()=>{this.sub=void 0,this.notify(__("Connection closed")),this.quit(!0)},this.tunnel.subscribe(this.sub)}cleanup(){this.sub&&this.sub.close()}checklib(){Antunnel.tunnel?(this.tunnel=Antunnel.tunnel,this.openSession()):this._gui.pushService("Antunnel/AntunnelService").then(t=>{let e=this.systemsetting.system.tunnel_uri;e||(this.error(__("Unable to connect to the tunnel")),this.quit(!0)),Antunnel.init(e).then(t=>{this.notify(__("Tunnel now connected to the server at: {0}",e)),this.tunnel=Antunnel.tunnel,this.openSession()}).catch(t=>{Antunnel.tunnel&&(Antunnel.tunnel.close(),this.error(__("Unable to connect to the tunnel: {0}",t.toString()),t),this.quit(!0))})}).catch(t=>{this.error(__("Unable to run Antunnel service: {0}",t.toString()),t),this.quit(!0)})}main(){if(!Antunnel)return this.error(__("Antunnel library is not available")),void this.quit(!0);this.log_container=this.find("log-container"),this.logs=[],$(this.log_container).css("overflow-y","auto"),this.find("menu-level").items=[{text:__("Default level"),nodes:[{text:__("Debug"),switch:!0,checked:!0,severity:"debug"},{text:__("Notice"),switch:!0,checked:!0,severity:"notice"},{text:__("Info"),switch:!0,checked:!0,severity:"info"},{text:__("Warning"),switch:!0,checked:!0,severity:"warning"},{text:__("Error"),switch:!0,checked:!0,severity:"err"},{text:__("Critical"),switch:!0,checked:!0,severity:"crit"},{text:__("Alert"),switch:!0,checked:!0,severity:"alert"},{text:__("Emergency"),switch:!0,checked:!0,severity:"emerg"}],onchildselect:t=>{let e=t.data.item.data;this.filter[e.severity]=e.checked}}],this.filter={max_log:500,err:!0,emerg:!0,debug:!0,info:!0,notice:!0,warning:!0,crit:!0,alert:!0,pattern:void 0,record:!0};let t=this.find("txt-n-log");t.value=this.filter.max_log.toString(),$(t).on("keyup",e=>{if("Enter"===e.key){let e=parseInt(t.value);if(!isNaN(e))for(this.filter.max_log=e;this.logs.length>e;)this.logs.shift().el.remove();t.value=this.filter.max_log.toString()}}),this.find("btn-clear").onbtclick=()=>{this.logs=[],$(this.log_container).empty()};let e=this.find("txt-reg");$(e).on("keyup",t=>{if("Enter"===t.key){if(""===e.value.trim())return this.filter.pattern=void 0;try{this.filter.pattern=new RegExp(e.value,"g")}catch(t){this.error(__("Invalid regular expression: {0}",t.toString()),t),this.filter.pattern=void 0,e.value=""}}}),this.find("sw-record").onswchange=t=>{this.filter.record=t.data},this.setting.topic?this.checklib():this._gui.openDialog("PromptDialog",{title:__("Enter topic name"),label:__("Please enter Antunnel topic name")}).then(t=>{this.setting.topic=t,this.checklib()})}}t.ServerLogClient=e,e.dependencies=["pkg://Antunnel/main.js"],e.singleton=!0}(e=t.application||(t.application={}))}(OS||(OS={}));

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{
"pkgname": "ServerLogClient",
"app":"ServerLogClient",
"name":"Server log monitor",
"description":"Client for server Syslog monitoring",
"info":{
"author": "",
"email": ""
},
"version":"0.0.1-b",
"category":"System",
"iconclass":"bi bi-receipt-cutoff",
"mimes":["none"],
"dependencies": [
"Antunnel@0.1.8-a"
],
"locale": {}
}

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<afx-app-window apptitle="__(Server system log)" width="600" height="400" data-id="ServerLogClient">
<afx-vbox >
<afx-hbox data-height="25" data-id="top-header">
<afx-button data-height="25" text="__(Clear)" data-id="btn-clear" data-width="60"></afx-button>
<afx-menu data-id="menu-level" data-width="100"></afx-menu>
<afx-label class="field-label" text="__(Filter)" data-width="50"></afx-label>
<input type="text" data-id="txt-reg"></input>
<afx-label class="field-label" text="__(Keep upto)" data-width="70"></afx-label>
<input type="text" data-width="50" data-id="txt-n-log"></input>
<afx-label class="field-label" text="__(Record)" data-width="50"></afx-label>
<afx-switch swon="true" data-id="sw-record" data-width="30"></afx-switch>
</afx-hbox>
<div data-id="log-container">
</div>
</afx-vbox>
</afx-app-window>

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ServerLogClient/main.css Normal file
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afx-app-window[data-id="ServerLogClient"] p {
margin: 0;
padding: 5px;
padding-left: 10px;
padding-right: 10px;
font-family: "Courier New";
border-bottom: 1px solid gray;
}
afx-app-window[data-id="ServerLogClient"] p:hover {
background-color: gray;
}
afx-app-window[data-id="ServerLogClient"] p.debug{
color:green;
}
/*
afx-app-window[data-id="ServerLogClient"] p.notice, afx-app-window[data-id="ServerLogClient"] p.info{
color:green;
}*/
afx-app-window[data-id="ServerLogClient"] p.warning {
color: orange;
}
afx-app-window[data-id="ServerLogClient"] p.err {
color: orangered;
}
afx-app-window[data-id="ServerLogClient"] p.crit, afx-app-window[data-id="ServerLogClient"] p.alert {
color: orangered;
font-weight: bold;
}
afx-app-window[data-id="ServerLogClient"] p.emerg {
color: red;
font-weight: bold;
}
afx-app-window[data-id="ServerLogClient"] input {
height: 25px;
}
afx-app-window[data-id="ServerLogClient"] afx-hbox[data-id="top-header"] {
border-bottom: 1px solid gray;
}
afx-app-window[data-id="ServerLogClient"] afx-hbox[data-id="top-header"] afx-label.field-label{
text-align: right;
padding-top: 5px;
padding-right: 3px;
}
afx-app-window[data-id="ServerLogClient"] afx-hbox[data-id="top-header"] afx-label.field-label i.label-text{
font-weight: bold;
}

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ServerLogClient/main.ts Normal file
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namespace OS {
export namespace application {
declare var Antunnel: any;
interface SyslogMessage {
timestamp: string;
tag: string;
severity_label: string;
severity: number;
relayip?: string;
relayhost?: string;
program: string;
priority: number;
message: string;
logsource?: string;
hostname?: string;
facility_label: string;
facility: number;
end_msg?: string;
type?: string;
el: JQuery<HTMLElement>;
};
interface SyslogFilter {
max_log: number;
err: boolean;
debug: boolean;
info: boolean;
notice: boolean;
warning: boolean;
crit: boolean;
alert: boolean;
emerg: boolean;
pattern?: RegExp;
record: boolean;
};
/**
*
* @class ServerLogClient
* @extends {BaseApplication}
*/
export class ServerLogClient extends BaseApplication {
private tunnel: any;
private sub: GenericObject<any>;
private log_container: HTMLDivElement;
private filter: SyslogFilter;
private logs: SyslogMessage[];
constructor(args: AppArgumentsType[]) {
super("ServerLogClient", args);
}
private check(msg: SyslogMessage): boolean
{
if(!this.filter.record)
{
return false;
}
// filter by severity
if(!this.filter[msg.severity_label])
{
return false;
}
// filter by regex
if(this.filter.pattern)
{
if(msg.message.match(this.filter.pattern))
{
return true;
}
return false;
}
else
{
return true;
}
}
private log(msg: SyslogMessage): void {
if(!this.check(msg))
{
return;
}
// if the log
if(this.logs.length >= this.filter.max_log)
{
let logel = this.logs.shift();
$(logel.el).remove();
}
msg.el = $("<p />").addClass(msg.severity_label);
msg.el.text(msg.message);
$(this.log_container).append(msg.el);
this.log_container.scrollTop = this.log_container.scrollHeight;
this.logs.push(msg);
}
private openSession(): void {
this.sub = new Antunnel.Subscriber(this.setting.topic);
this.sub.onopen = () => {
console.log("Subscribed");
};
this.sub.onerror = (e) => {
this.error(__("Unable to connect to: syslog"), e);
this.sub = undefined;
}
this.sub.onmessage = (e: GenericObject<any>) => {
if(e.data)
{
let data = JSON.parse(new TextDecoder("utf-8").decode(e.data));
if(data.priority)
{
data.priority = parseInt(data.priority);
}
if(data.severity)
{
data.severity = parseInt(data.severity);
}
if(data.facility)
{
data.facility = parseInt(data.facility);
}
this.log(data as SyslogMessage);
}
}
this.sub.onclose = () =>
{
this.sub = undefined;
this.notify(__("Connection closed"));
this.quit(true);
}
this.tunnel.subscribe(this.sub);
}
cleanup(): void {
if(this.sub)
this.sub.close();
}
private checklib(): void {
if(!Antunnel.tunnel)
{
this._gui
.pushService("Antunnel/AntunnelService")
.then((d) => {
let uri = (this.systemsetting.system as any).tunnel_uri as string;
if(!uri)
{
this.error(__("Unable to connect to the tunnel"));
this.quit(true);
}
Antunnel
.init(uri)
.then((t) =>{
this.notify(__("Tunnel now connected to the server at: {0}", uri));
this.tunnel = Antunnel.tunnel;
this.openSession();
})
.catch((e) => {
if(Antunnel.tunnel)
{
Antunnel.tunnel.close();
this.error(__("Unable to connect to the tunnel: {0}", e.toString()), e);
this.quit(true);
}
});
})
.catch((e) => {
this.error(__("Unable to run Antunnel service: {0}",e.toString()),e);
this.quit(true);
});
}
else
{
this.tunnel = Antunnel.tunnel;
this.openSession();
}
}
main(): void {
if(!Antunnel)
{
this.error(__("Antunnel library is not available"));
this.quit(true);
return;
}
this.log_container = this.find("log-container") as HTMLDivElement;
this.logs = [];
$(this.log_container)
.css("overflow-y", "auto");
let menu = this.find("menu-level") as GUI.tag.MenuTag;
menu.items = [
{
text: __("Default level"),
nodes: [
{
text: __("Debug"),
switch: true,
checked: true,
severity: "debug"
},
{
text: __("Notice"),
switch: true,
checked: true,
severity: "notice"
},
{
text: __("Info"),
switch: true,
checked: true,
severity: "info"
},
{
text: __("Warning"),
switch: true,
checked: true,
severity: "warning"
},
{
text: __("Error"),
switch: true,
checked: true,
severity: "err"
},
{
text: __("Critical"),
switch: true,
checked: true,
severity: "crit"
},
{
text: __("Alert"),
switch: true,
checked: true,
severity: "alert"
},
{
text: __("Emergency"),
switch: true,
checked: true,
severity: "emerg"
}
],
onchildselect: (e) => {
let data = e.data.item.data;
this.filter[data.severity] = data.checked;
}
}
];
this.filter = {
max_log: 500,
err: true,
emerg: true,
debug: true,
info: true,
notice: true,
warning: true,
crit: true,
alert: true,
pattern: undefined,
record: true
};
let txtnlog = this.find("txt-n-log") as HTMLInputElement;
txtnlog.value = this.filter.max_log.toString();
$(txtnlog).on("keyup", (e) =>{
if(e.key === "Enter")
{
let val = parseInt(txtnlog.value);
if(!isNaN(val))
{
this.filter.max_log = val;
// truncate the log
while(this.logs.length > val)
{
let m = this.logs.shift();
m.el.remove();
}
}
txtnlog.value = this.filter.max_log.toString();
}
});
let btn = this.find("btn-clear") as GUI.tag.ButtonTag;
btn.onbtclick = () => {
this.logs = [];
$(this.log_container).empty();
};
let txtreg = this.find("txt-reg") as HTMLInputElement;
$(txtreg).on("keyup", (e) => {
if(e.key === "Enter")
{
if(txtreg.value.trim() === "")
{
return this.filter.pattern = undefined;
}
try{
this.filter.pattern = new RegExp(txtreg.value,"g");
}
catch(e)
{
this.error(__("Invalid regular expression: {0}", e.toString()),e);
this.filter.pattern = undefined;
txtreg.value = "";
}
}
});
let sw = this.find("sw-record") as GUI.tag.SwitchTag;
sw.onswchange = (e) => {
this.filter.record = e.data;
}
if(!this.setting.topic)
{
this._gui.openDialog("PromptDialog", {
title: __("Enter topic name"),
label: __("Please enter Antunnel topic name")
})
.then((v) =>
{
this.setting.topic = v;
this.checklib();
});
}
else
{
this.checklib();
}
}
}
ServerLogClient.dependencies = [
"pkg://Antunnel/main.js"
];
ServerLogClient.singleton = true;
}
}

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{
"pkgname": "ServerLogClient",
"app":"ServerLogClient",
"name":"Server log monitor",
"description":"Client for server Syslog monitoring",
"info":{
"author": "",
"email": ""
},
"version":"0.0.1-b",
"category":"System",
"iconclass":"bi bi-receipt-cutoff",
"mimes":["none"],
"dependencies": [
"Antunnel@0.1.8-a"
],
"locale": {}
}

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<afx-app-window apptitle="__(Server system log)" width="600" height="400" data-id="ServerLogClient">
<afx-vbox >
<afx-hbox data-height="25" data-id="top-header">
<afx-button data-height="25" text="__(Clear)" data-id="btn-clear" data-width="60"></afx-button>
<afx-menu data-id="menu-level" data-width="100"></afx-menu>
<afx-label class="field-label" text="__(Filter)" data-width="50"></afx-label>
<input type="text" data-id="txt-reg"></input>
<afx-label class="field-label" text="__(Keep upto)" data-width="70"></afx-label>
<input type="text" data-width="50" data-id="txt-n-log"></input>
<afx-label class="field-label" text="__(Record)" data-width="50"></afx-label>
<afx-switch swon="true" data-id="sw-record" data-width="30"></afx-switch>
</afx-hbox>
<div data-id="log-container">
</div>
</afx-vbox>
</afx-app-window>

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"dependencies": ["libwvnc@0.1.2-a"],"category":"Internet","icon":"icon.png","mimes":["none"],
"download": "https://raw.githubusercontent.com/lxsang/antosdk-apps/master/RemoteDesktop/build/release/RemoteDesktop.zip"
},
{
"pkgname": "ServerLogClient",
"name": "Server log monitor",
"description": "https://raw.githubusercontent.com/lxsang/antosdk-apps/master/ServerLogClient/README.md",
"category": "System",
"author": "",
"version": "0.0.1-b",
"dependencies": ["Antunnel@0.1.8-a"],
"download": "https://raw.githubusercontent.com/lxsang/antosdk-apps/master/ServerLogClient/build/release/ServerLogClient.zip"
},
{
"pkgname": "ShaderPlayground",
"name": "OpenGL Shader Playground",