aredn/files/app/main/tools/e/traceroute.ut

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{%
/*
* Part of AREDN® -- Used for creating Amateur Radio Emergency Data Networks
* Copyright (C) 2024 Tim Wilkinson
* See Contributors file for additional contributors
*
* 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 version 3 of the License.
*
* 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 <http://www.gnu.org/licenses/>.
*
* Additional Terms:
*
* Additional use restrictions exist on the AREDN® trademark and logo.
* See AREDNLicense.txt for more info.
*
* Attributions to the AREDN® Project must be retained in the source code.
* If importing this code into a new or existing project attribution
* to the AREDN® project must be added to the source code.
*
* You must not misrepresent the origin of the material contained within.
*
* Modified versions must be modified to attribute to the original source
* and be marked in reasonable ways as differentiate it from the original
* version
*/
%}
{%
const nodes = mesh.getNodeList();
const mynode = configuration.getName();
%}
<div class="dialog wide">
{{_R("tool-header", "Traceroute")}}
<div class="simple-tool compact client-server">
<div class="cols">
<div>
<div class="o">Target A&zwnj;ddress</div>
<div class="m">IP A&zwnj;ddress, Hostname or Node</div>
</div>
<div>
<input id="tool-target" type="text" size="40" required list="mesh-nodes">
<button id="target-swap"><div class="icon updownarrow"></div></button>
</div>
</div>
<div class="cols">
<div>
<div class="o">Source A&zwnj;ddress</div>
<div class="m">Node name or a&zwnj;ddress</div>
</div>
<div>
<input id="tool-client" type="text" size="40" required value="{{mynode}}" list="mesh-nodes">
<div style="width:42px"></div>
</div>
</div>
<datalist id="mesh-nodes">
<option value="{{mynode}}">{{mynode}}</option>
{%
for (let i = 0; i < length(nodes); i++) {
if (nodes[i] !== mynode) {
print(`<option value="${nodes[i]}">${nodes[i]}</option>`);
}
}
%}
</datalist>
{{_H("Trace the route between a source host and a target. The source should be node on the mesh, and by default is the current node.
The target can be a node, an IP address, or any hostname that might be reachable.")}}
<div class="cols">
<div class="tool-console">
<pre></pre>
</div>
<div>
<button id="tool-start">Go</button>
</div>
</div>
</div>
{{_R("tool-footer")}}
<script>
(function(){
{{_R("open")}}
htmx.find("#tool-target").focus();
const mynode = "{{mynode}}";
htmx.on("#target-swap", "click", _ => {
const v = htmx.find("#tool-target").value;
htmx.find("#tool-target").value = htmx.find("#tool-client").value;
htmx.find("#tool-client").value = v;
});
htmx.on("#tool-start", "click", async _ => {
const server = htmx.find("#tool-target").value;
const client = htmx.find("#tool-client").value;
if (server && client) {
const con = htmx.find(".tool-console pre");
con.innerText = "";
function out(line) {
con.innerHTML += `${line}\n`;
}
out("Traceroute test started");
out("");
try {
const r = await fetch(`http://${client}${client.indexOf(".") == -1 ? ".local.mesh" : ""}/cgi-bin/traceroute?server=${server}${server.indexOf(".") == -1 ? ".local.mesh" : ""}`);
const reader = r.body.getReader();
let state = "BEGIN";
for (;;) {
const { done, value } = await reader.read();
if (done) {
if (state !== "DONE") {
out("Traceroute Terminated.");
}
break;
}
const lines = String.fromCharCode.apply(null, value).split("\n");
lines.forEach(line => {
line = line.trim();
switch (state) {
case "BEGIN":
{
const m = line.match(/<title>(.*)<\/title>/);
if (m) {
if (m[1] === "SUCCESS") {
state = "CONNECTING";
out(`Source: ${client}`);
out(`Target: ${server}`);
out("");
}
else {
state = "ERROR";
const m = line.match(/<pre>(.*)<\/pre>/);
if (m) {
out(`ERROR: ${m[1]}`);
state = "DONE";
}
}
}
break;
}
case "CONNECTING":
if (line.match(/^traceroute/)) {
state = "PRINT";
out(line);
}
break;
case "PRINT":
if (line) {
if (line === "</pre></body></html>") {
state = "DONE";
out("");
out("Traceroute done");
out("");
out(Date().toString());
}
else {
const m = line.match(/^[0-9]+ +(.+\.local\.mesh) /);
if (m) {
line = line.replace(m[1], `<a href="http://${m[1]}">${m[1]}</a>`);
}
out(line);
}
}
break;
case "ERROR":
{
const m = line.match(/<pre>(.*)<\/pre>/);
if (m) {
out(`ERROR: ${m[1]}`);
state = "DONE";
}
break;
}
case "DONE":
default:
break;
}
});
}
}
catch (_) {
out("Traceroute Failed.");
}
}
});
})();
</script>
</div>