Hello, and thank you for looking!
Big Picture
I have an ESP8266 connected to my heat pump so I can control it over MQTT. Occasionally, it disconnects from the MQTT server, and the fix is to reboot the device.
It serves a webpage with a REBOOT button.
When it stops responding on MQTT, I'd like Node-RED to press that button!
What I'm having trouble with
I've looked at the webpage source in Firefox, and here's the relevant section for the Reboot button (full source in the Background Info section below):
<form><button type='submit' name='REBOOT' class='button bred'>Reboot</button></form>
I've also watched what happens in Firefox Network Inspector, and I've seen two things I think are important:
| Status | Method | File |
|---|---|---|
| 200 | GET | /?REBOOT= |
And also:
"queryString": [
{
"name": "REBOOT",
"value": ""
}
I've tried to pass many things in string form to my http-request GET node:
That Debug 5 node always responds with a webpage, but I haven't successfully triggered a reboot yet.
Bottom line, I don't know what to pass the http-request GET node to get it to send the appropriate info to the webpage to trigger a reboot.
Any help would be greatly appreciated - happy to provide more troubleshooting info, too. Thank you again!
Background Info
-
I'm running Node-RED 17.0.3 as an Add-On in Home Assistant;
-
This is the link to the Github project that's running on the ESP8266;
-
Here is the entire contents of the View Source for the device webpage:
<!DOCTYPE html><html lang='en' class=''><head><meta charset='utf-8'><meta name='viewport' content='width=device-width,initial-scale=1,user-scalable=no' /><title>Mitsubishi2MQTT - hvac-frontbedroom</title><style>*{font-family: verdana,sans-serif;}body {text-align: center;}div,fieldset,input,select {padding: 5px;font-size: 1em;}.main {text-align:left;display: inline-block;min-width:340px;}fieldset {background-color: #f2f2f2;}p {margin: 0.5em 0;}.ctrlrow {padding: 0px !important;margin: 0.5em 0 !important;}input {width: 100%;box-sizing: border-box;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;}input[type=checkbox],input[type=radio] {width: 1em;margin-right: 6px;vertical-align: -1px;}select {width: 100%;background: #dddddd;color: #000000;block-size: 40px;}textarea {resize: true;width: 100%;height: 50px;padding: 5px;box-sizing: border-box;border: 2px solid #ccc;border-radius: 4px;background-color: #f8f8f8;overflow: auto;}td {padding: 0px;}button {border: 0;border-radius: 0.3rem;background-color: #1fa3ec;color: #fff;line-height: 2.4rem;font-size: 1.2rem;width: 100%;-webkit-transition-duration: 0.4s;transition-duration: 0.4s;cursor: pointer;}button:hover {background-color: #0e70a4;}.bred {background-color: #d43535;}.bred:hover {background-color: #931f1f;}.bgrn {background-color: #47c266;}.bgrn:hover {background-color: #5aaf6f;}a {text-decoration: none;}.p {float: left;text-align: left;}.q {float: right;text-align: right;}pan {display: inline-block;}/* ON/OFF switch *//* The switch - the box around the slider */.switch {position: relative;display: inline-block;width: 60px;height: 34px;}/* Hide default HTML checkbox */.switch input {opacity: 0;width: 0;height: 0;}/* The slider */.slider {position: absolute;cursor: pointer;top: 0;left: 0;right: 0;bottom: 0;background-color: #ccc;-webkit-transition: 0.4s;transition: 0.4s;}.slider:before {position: absolute;content: '';height: 26px;width: 26px;left: 4px;bottom: 4px;background-color: white;-webkit-transition: 0.4s;transition: 0.4s;}input:checked + .slider {background-color: #0c0;}input:focus + .slider {box-shadow: 0 0 1px #2196f3;}input:checked + .slider:before {-webkit-transform: translateX(26px);-ms-transform: translateX(26px);transform: translateX(26px);}/* Rounded sliders */.slider.round {border-radius: 34px;}.slider.round:before {border-radius: 50%;}</style></head><body><div class='main'><div style='text-align:center;'><noscript>To user Mitsubishi2MQTT, you need to activate Javascript<br/></noscript><h3>hvac-frontbedroom</h3></div><script>var showLogout = 0;var showControl = 1;document.onreadystatechange = function() {if (document.readyState === 'complete') {if (showLogout == 0) {var element = document.getElementById('logout');element.parentNode.removeChild(element);}if (showControl == 0) {var element = document.getElementById('control');element.parentNode.removeChild(element);}}}</script><div style='text-align:center;'><h2>Home page</h2></div><div id='control'><form action='/control' method='get'><button>Control</button></form></div><div><form action='/setup' method='get'><button>Setup</button></form></div><div><form action='/status' method='get'><button>Status</button></form></div><div><form action='/upgrade' method='get'><button>Firmware Upgrade</button></form></div><div><form><button type='submit' name='REBOOT' class='button bred'>Reboot</button></form></div><div id='logout'><form action='/login?LOGOUT=YES' method='post'><button type='submit' name='Logout' class='button bred'>Logout</button></form></div><br/><div style='text-align:right;font-size:10px;color: grey;'><hr/>Mitsubishi2MQTT 2023.12.4</div></div></div></body></html>
- Here is my attempt:
[{"id":"c7ebb3a771a08f7c","type":"tab","label":"Flow 2","disabled":false,"info":"","env":[]},{"id":"1d8d26d8d759c6bf","type":"http request","z":"c7ebb3a771a08f7c","name":"","method":"POST","ret":"txt","paytoqs":"ignore","url":"10.69.14.10","tls":"","persist":false,"proxy":"","insecureHTTPParser":false,"authType":"","senderr":false,"headers":[],"x":690,"y":320,"wires":[["f0b73838af05587b"]]},{"id":"5e169f80e6401569","type":"inject","z":"c7ebb3a771a08f7c","name":"Reboot Command","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"button type='submit' name='REBOOT'","payloadType":"str","x":430,"y":320,"wires":[["1881558f631426ba","1d8d26d8d759c6bf"]]},{"id":"1881558f631426ba","type":"debug","z":"c7ebb3a771a08f7c","name":"debug 4","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":640,"y":220,"wires":[]},{"id":"f0b73838af05587b","type":"debug","z":"c7ebb3a771a08f7c","name":"debug 5","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":940,"y":320,"wires":[]}]
- Here's the complete output of the Firefox Network Inspector .har file:
{
"log": {
"version": "1.2",
"creator": {
"name": "Firefox",
"version": "122.0"
},
"browser": {
"name": "Firefox",
"version": "122.0"
},
"pages": [
{
"id": "page_2",
"pageTimings": {
"onContentLoad": 101,
"onLoad": 104
},
"startedDateTime": "2024-02-01T09:40:56.928-08:00",
"title": "http://10.69.14.10/?REBOOT="
}
],
"entries": [
{
"startedDateTime": "2024-02-01T09:40:56.928-08:00",
"request": {
"bodySize": 0,
"method": "GET",
"url": "http://10.69.14.10/?REBOOT=",
"httpVersion": "HTTP/1.1",
"headers": [
{
"name": "Host",
"value": "10.69.14.10"
},
{
"name": "User-Agent",
"value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:122.0) Gecko/20100101 Firefox/122.0"
},
{
"name": "Accept",
"value": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8"
},
{
"name": "Accept-Language",
"value": "en-US,en;q=0.5"
},
{
"name": "Accept-Encoding",
"value": "gzip, deflate"
},
{
"name": "DNT",
"value": "1"
},
{
"name": "Connection",
"value": "keep-alive"
},
{
"name": "Referer",
"value": "http://10.69.14.10/?"
},
{
"name": "Upgrade-Insecure-Requests",
"value": "1"
}
],
"cookies": [],
"queryString": [
{
"name": "REBOOT",
"value": ""
}
],
"headersSize": 392
},
"response": {
"status": 200,
"statusText": "OK",
"httpVersion": "HTTP/1.1",
"headers": [
{
"name": "Content-Length",
"value": "3022"
},
{
"name": "Content-Type",
"value": "text/html"
},
{
"name": "Connection",
"value": "close"
},
{
"name": "Accept-Ranges",
"value": "none"
}
],
"cookies": [],
"content": {
"mimeType": "text/html",
"size": 3022,
"text": "<!DOCTYPE html><html lang='en' class=''><head><meta charset='utf-8'><meta name='viewport' content='width=device-width,initial-scale=1,user-scalable=no' /><title>Mitsubishi2MQTT - hvac-frontbedroom</title><style>*{font-family: verdana,sans-serif;}body {text-align: center;}div,fieldset,input,select {padding: 5px;font-size: 1em;}.main {text-align:left;display: inline-block;min-width:340px;}fieldset {background-color: #f2f2f2;}p {margin: 0.5em 0;}.ctrlrow {padding: 0px !important;margin: 0.5em 0 !important;}input {width: 100%;box-sizing: border-box;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;}input[type=checkbox],input[type=radio] {width: 1em;margin-right: 6px;vertical-align: -1px;}select {width: 100%;background: #dddddd;color: #000000;block-size: 40px;}textarea {resize: true;width: 100%;height: 50px;padding: 5px;box-sizing: border-box;border: 2px solid #ccc;border-radius: 4px;background-color: #f8f8f8;overflow: auto;}td {padding: 0px;}button {border: 0;border-radius: 0.3rem;background-color: #1fa3ec;color: #fff;line-height: 2.4rem;font-size: 1.2rem;width: 100%;-webkit-transition-duration: 0.4s;transition-duration: 0.4s;cursor: pointer;}button:hover {background-color: #0e70a4;}.bred {background-color: #d43535;}.bred:hover {background-color: #931f1f;}.bgrn {background-color: #47c266;}.bgrn:hover {background-color: #5aaf6f;}a {text-decoration: none;}.p {float: left;text-align: left;}.q {float: right;text-align: right;}pan {display: inline-block;}/* ON/OFF switch *//* The switch - the box around the slider */.switch {position: relative;display: inline-block;width: 60px;height: 34px;}/* Hide default HTML checkbox */.switch input {opacity: 0;width: 0;height: 0;}/* The slider */.slider {position: absolute;cursor: pointer;top: 0;left: 0;right: 0;bottom: 0;background-color: #ccc;-webkit-transition: 0.4s;transition: 0.4s;}.slider:before {position: absolute;content: '';height: 26px;width: 26px;left: 4px;bottom: 4px;background-color: white;-webkit-transition: 0.4s;transition: 0.4s;}input:checked + .slider {background-color: #0c0;}input:focus + .slider {box-shadow: 0 0 1px #2196f3;}input:checked + .slider:before {-webkit-transform: translateX(26px);-ms-transform: translateX(26px);transform: translateX(26px);}/* Rounded sliders */.slider.round {border-radius: 34px;}.slider.round:before {border-radius: 50%;}</style></head><body><div class='main'><div style='text-align:center;'><noscript>To user Mitsubishi2MQTT, you need to activate Javascript<br/></noscript><h3>hvac-frontbedroom</h3></div><p>Rebooting... Refresh in <span id='count'>20s</span>...</p><script>setTimeout(function() {window.location.href = '/';}, 20000);</script><script>var count = 30;(function countDown() {document.getElementById('count').innerHTML = count + 's';setTimeout(function() {if(count > 0) {count --;return countDown();} else {window.location.href = '/';}}, 1000);})();</script><br/><div style='text-align:right;font-size:10px;color: grey;'><hr/>Mitsubishi2MQTT 2023.12.4</div></div></div></body></html>"
},
"redirectURL": "",
"headersSize": 106,
"bodySize": 3128
},
"cache": {},
"timings": {
"blocked": 0,
"dns": 0,
"connect": 54,
"ssl": 0,
"send": 0,
"wait": 21,
"receive": 20
},
"time": 95,
"_securityState": "insecure",
"serverIPAddress": "10.69.14.10",
"connection": "80",
"pageref": "page_2"
},
{
"startedDateTime": "2024-02-01T09:40:57.040-08:00",
"request": {
"bodySize": 0,
"method": "GET",
"url": "http://10.69.14.10/favicon.ico",
"httpVersion": "HTTP/1.1",
"headers": [
{
"name": "Host",
"value": "10.69.14.10"
},
{
"name": "User-Agent",
"value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:122.0) Gecko/20100101 Firefox/122.0"
},
{
"name": "Accept",
"value": "image/avif,image/webp,*/*"
},
{
"name": "Accept-Language",
"value": "en-US,en;q=0.5"
},
{
"name": "Accept-Encoding",
"value": "gzip, deflate"
},
{
"name": "DNT",
"value": "1"
},
{
"name": "Connection",
"value": "keep-alive"
},
{
"name": "Referer",
"value": "http://10.69.14.10/?REBOOT="
}
],
"cookies": [],
"queryString": [],
"headersSize": 0
},
"response": {
"status": 200,
"statusText": "OK",
"httpVersion": "HTTP/1.1",
"headers": [
{
"name": "Content-Length",
"value": "3688"
},
{
"name": "Content-Type",
"value": "text/html"
},
{
"name": "Connection",
"value": "close"
},
{
"name": "Accept-Ranges",
"value": "none"
}
],
"cookies": [],
"content": {
"mimeType": "text/html",
"size": 3688,
"text": "<!DOCTYPE html><html lang='en' class=''><head><meta charset='utf-8'><meta name='viewport' content='width=device-width,initial-scale=1,user-scalable=no' /><title>Mitsubishi2MQTT - hvac-frontbedroom</title><style>*{font-family: verdana,sans-serif;}body {text-align: center;}div,fieldset,input,select {padding: 5px;font-size: 1em;}.main {text-align:left;display: inline-block;min-width:340px;}fieldset {background-color: #f2f2f2;}p {margin: 0.5em 0;}.ctrlrow {padding: 0px !important;margin: 0.5em 0 !important;}input {width: 100%;box-sizing: border-box;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;}input[type=checkbox],input[type=radio] {width: 1em;margin-right: 6px;vertical-align: -1px;}select {width: 100%;background: #dddddd;color: #000000;block-size: 40px;}textarea {resize: true;width: 100%;height: 50px;padding: 5px;box-sizing: border-box;border: 2px solid #ccc;border-radius: 4px;background-color: #f8f8f8;overflow: auto;}td {padding: 0px;}button {border: 0;border-radius: 0.3rem;background-color: #1fa3ec;color: #fff;line-height: 2.4rem;font-size: 1.2rem;width: 100%;-webkit-transition-duration: 0.4s;transition-duration: 0.4s;cursor: pointer;}button:hover {background-color: #0e70a4;}.bred {background-color: #d43535;}.bred:hover {background-color: #931f1f;}.bgrn {background-color: #47c266;}.bgrn:hover {background-color: #5aaf6f;}a {text-decoration: none;}.p {float: left;text-align: left;}.q {float: right;text-align: right;}pan {display: inline-block;}/* ON/OFF switch *//* The switch - the box around the slider */.switch {position: relative;display: inline-block;width: 60px;height: 34px;}/* Hide default HTML checkbox */.switch input {opacity: 0;width: 0;height: 0;}/* The slider */.slider {position: absolute;cursor: pointer;top: 0;left: 0;right: 0;bottom: 0;background-color: #ccc;-webkit-transition: 0.4s;transition: 0.4s;}.slider:before {position: absolute;content: '';height: 26px;width: 26px;left: 4px;bottom: 4px;background-color: white;-webkit-transition: 0.4s;transition: 0.4s;}input:checked + .slider {background-color: #0c0;}input:focus + .slider {box-shadow: 0 0 1px #2196f3;}input:checked + .slider:before {-webkit-transform: translateX(26px);-ms-transform: translateX(26px);transform: translateX(26px);}/* Rounded sliders */.slider.round {border-radius: 34px;}.slider.round:before {border-radius: 50%;}</style></head><body><div class='main'><div style='text-align:center;'><noscript>To user Mitsubishi2MQTT, you need to activate Javascript<br/></noscript><h3>hvac-frontbedroom</h3></div><script>var showLogout = 0;var showControl = 1;document.onreadystatechange = function() {if (document.readyState === 'complete') {if (showLogout == 0) {var element = document.getElementById('logout');element.parentNode.removeChild(element);}if (showControl == 0) {var element = document.getElementById('control');element.parentNode.removeChild(element);}}}</script><div style='text-align:center;'><h2>_TXT_HOME_PAGE_</h2></div><div id='control'><form action='/control' method='get'><button>_TXT_CONTROL_</button></form></div><div><form action='/setup' method='get'><button>_TXT_SETUP_</button></form></div><div><form action='/status' method='get'><button>_TXT_STATUS_</button></form></div><div><form action='/upgrade' method='get'><button>_TXT_FW_UPGRADE_</button></form></div><div><form><button type='submit' name='REBOOT' class='button bred'>_TXT_REBOOT_</button></form></div><div id='logout'><form action='/login?LOGOUT=YES' method='post'><button type='submit' name='Logout' class='button bred'>_TXT_LOGOUT_</button></form></div><br/><div style='text-align:right;font-size:10px;color: grey;'><hr/>Mitsubishi2MQTT 2023.12.4</div></div></div></body></html>"
},
"redirectURL": "",
"headersSize": 0,
"bodySize": 3688
},
"cache": {},
"timings": {
"blocked": 0,
"dns": 0,
"ssl": 0,
"connect": 0,
"send": 0,
"wait": 0,
"receive": 0
},
"time": 0,
"_securityState": "insecure",
"pageref": "page_2"
}
]
}
}
