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Philipp Heckel 2021-10-24 14:22:53 -04:00
parent 39574c954b
commit 317621c696
10 changed files with 252 additions and 135 deletions
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server/index.html
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@ -1,19 +1,39 @@
<!DOCTYPE html>
<html lang="en">
<head>
<title>ntfy.sh</title>
<style>
body { font-size: 1.2em; line-height: 130%; }
#error { color: darkred; font-style: italic; }
#main { max-width: 900px; margin: 0 auto 50px auto; }
</style>
<meta charset="UTF-8">
<title>ntfy.sh | simple HTTP-based pub-sub</title>
<link rel="stylesheet" href="static/css/app.css" type="text/css">
<!-- Mobile view -->
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="HandheldFriendly" content="true">
<!-- Mobile browsers, background color -->
<meta name="theme-color" content="#004c79">
<meta name="msapplication-navbutton-color" content="#004c79">
<meta name="apple-mobile-web-app-status-bar-style" content="#004c79">
<!-- Favicon, see favicon.io -->
<link rel="icon" type="image/png" href="static/img/favicon.png">
<!-- Previews in Google, Slack, WhatsApp, etc. -->
<meta property="og:type" content="website" />
<meta property="og:locale" content="en_US" />
<meta property="og:site_name" content="ntfy.sh" />
<meta property="og:title" content="ntfy.sh | simple HTTP-based pub-sub" />
<meta property="og:description" content="ntfy is a simple HTTP-based pub-sub notification service. It allows you to send desktop notifications via scripts from any computer, entirely without signup or cost. Made with ❤ by Philipp C. Heckel, Apache License 2.0, source at https://heckel.io/ntfy." />
<meta property="og:image" content="/static/img/ntfy.png" />
<meta property="og:url" content="https://ntfy.sh" />
</head>
<body>
<div id="main">
<h1>ntfy.sh - simple HTTP-based pub-sub</h1>
<p>
<b>ntfy</b> (pronounce: <i>notify</i>) is a simple <b>HTTP-based pub-sub notification service and tool</b>.
It allows you to send <b>desktop notifications via scripts</b>, entirely <b>without signup or cost</b>.
<b>ntfy</b> (pronounce: <i>notify</i>) is a simple HTTP-based pub-sub notification service and tool.
It allows you to send <b>desktop notifications via scripts from any computer</b>, entirely <b>without signup or cost</b>.
It's also <a href="https://github.com/binwiederhier/ntfy">open source</a> if you want to run your own.
</p>
<p id="error"></p>
@ -37,151 +57,31 @@
<p>
<label for="topicField">Topic ID:</label>
<input type="text" id="topicField" placeholder="Letters, numbers, _ and -" pattern="[-_A-Za-z]{1,64}" autofocus />
<input type="submit" id="subscribeButton" value="Subscribe topic" />
<input type="submit" id="subscribeButton" value="Subscribe" />
</p>
</form>
<p id="topicsHeader">Subscribed topics:</p>
<ul id="topicsList"></ul>
<h3>Subscribe via your app, or via the CLI</h3>
<tt>
<code>
curl -s ntfy.sh/mytopic/raw # one message per line (\n are replaced with a space)<br/>
curl -s ntfy.sh/mytopic/json # one JSON message per line<br/>
curl -s ntfy.sh/mytopic/sse # server-sent events (SSE) stream
</tt>
</code>
<h3>Publishing messages</h3>
<h2>Publishing messages</h2>
<p>
Publishing messages can be done via PUT or POST using. Here's an example using <tt>curl</tt>:
</p>
<tt>
<code>
curl -d "long process is done" ntfy.sh/mytopic
</tt>
</code>
<p>
Messages published to a non-existing topic or a topic without subscribers will not be delivered later.
There is (currently) no buffering of any kind. If you're not listening, the message won't be delivered.
</p>
</div>
<script type="text/javascript">
let topics = {};
const topicsHeader = document.getElementById("topicsHeader");
const topicsList = document.getElementById("topicsList");
const topicField = document.getElementById("topicField");
const subscribeButton = document.getElementById("subscribeButton");
const subscribeForm = document.getElementById("subscribeForm");
const errorField = document.getElementById("error");
const subscribe = (topic) => {
if (Notification.permission !== "granted") {
Notification.requestPermission().then((permission) => {
if (permission === "granted") {
subscribeInternal(topic, 0);
} else {
showNotificationDeniedError();
}
});
} else {
subscribeInternal(topic, 0);
}
};
const subscribeInternal = (topic, delaySec) => {
setTimeout(() => {
// Render list entry
let topicEntry = document.getElementById(`topic-${topic}`);
if (!topicEntry) {
topicEntry = document.createElement('li');
topicEntry.id = `topic-${topic}`;
topicEntry.innerHTML = `${topic} <button onclick="test('${topic}')">Test</button> <button onclick="unsubscribe('${topic}')">Unsubscribe</button>`;
topicsList.appendChild(topicEntry);
}
topicsHeader.style.display = '';
// Open event source
let eventSource = new EventSource(`${topic}/sse`);
eventSource.onopen = () => {
topicEntry.innerHTML = `${topic} <button onclick="test('${topic}')">Test</button> <button onclick="unsubscribe('${topic}')">Unsubscribe</button>`;
delaySec = 0; // Reset on successful connection
};
eventSource.onerror = (e) => {
const newDelaySec = (delaySec + 5 <= 15) ? delaySec + 5 : 15;
topicEntry.innerHTML = `${topic} <i>(Reconnecting in ${newDelaySec}s ...)</i> <button disabled="disabled">Test</button> <button onclick="unsubscribe('${topic}')">Unsubscribe</button>`;
eventSource.close()
subscribeInternal(topic, newDelaySec);
};
eventSource.onmessage = (e) => {
const event = JSON.parse(e.data);
new Notification(event.message);
};
topics[topic] = eventSource;
localStorage.setItem('topics', JSON.stringify(Object.keys(topics)));
}, delaySec * 1000);
};
const unsubscribe = (topic) => {
topics[topic].close();
delete topics[topic];
localStorage.setItem('topics', JSON.stringify(Object.keys(topics)));
document.getElementById(`topic-${topic}`).remove();
if (Object.keys(topics).length === 0) {
topicsHeader.style.display = 'none';
}
};
const test = (topic) => {
fetch(`/${topic}`, {
method: 'PUT',
body: `This is a test notification for topic ${topic}!`
})
};
const showError = (msg) => {
errorField.innerHTML = msg;
topicField.disabled = true;
subscribeButton.disabled = true;
};
const showBrowserIncompatibleError = () => {
showError("Your browser is not compatible to use the web-based desktop notifications.");
};
const showNotificationDeniedError = () => {
showError("You have blocked desktop notifications for this website. Please unblock them and refresh to use the web-based desktop notifications.");
};
subscribeForm.onsubmit = function () {
if (!topicField.value) {
return false;
}
subscribe(topicField.value);
topicField.value = "";
return false;
};
// Disable Web UI if notifications of EventSource are not available
if (!window["Notification"] || !window["EventSource"]) {
showBrowserIncompatibleError();
} else if (Notification.permission === "denied") {
showNotificationDeniedError();
}
// Reset UI
topicField.value = "";
// Restore topics
const storedTopics = localStorage.getItem('topics');
if (storedTopics && Notification.permission === "granted") {
const storedTopicsArray = JSON.parse(storedTopics)
storedTopicsArray.forEach((topic) => { subscribeInternal(topic, 0); });
if (storedTopicsArray.length === 0) {
topicsHeader.style.display = 'none';
}
} else {
topicsHeader.style.display = 'none';
}
</script>
<script src="static/js/app.js"></script>
</body>
</html>