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Add readme and colors.

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Matt
2020-05-19 22:15:25 -05:00
parent 1515db776e
commit 3882f914cd
5 changed files with 73 additions and 21 deletions
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29
README.md Normal file
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@ -0,0 +1,29 @@
# Why?
Sometimes I run long scripts on a remote machine and I want to know when they finish. It's
not urgent enough that I need a text or toot, but being able to pull up a simple page that
shows what is done and not done makes it easy to check periodically.
# How?
This tiny Flask API runs on a server (Raspberry Pi, etc.). It has very basic authentication
and waits for a curl (or similar) GET request with some small amount of data. The data are
displayed on a simple web page.
The reason for a simple GET request is to make this as code-agnostic as possible. Drop a
curl command into R or Python or Go or Ruby or whatever (I assume) and be able to watch
whatever data you pass.
You can either run with the internal Flask development server or something like gunicorn.
# Other Use Cases?
I'm sure there are some.
# Security?
I'm sure this isn't very secure. It has basic data cleaning, string length limits, and
username/password protection. There is no database--all data are kept in memory and will
disappear when the server is stopped. Use at your own risk, don't reuse passwords, and
obviously don't pass data that can't be shared openly online. The last part includes things
like "front_door_unlocked"--use common sense.

6
app.py
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@ -10,7 +10,8 @@ app = Flask(__name__)
statuses = [
{
'title': 'curl -u matt:python -i http://localhost:5000/log/api/v1.0/new?title="example_status_no_spaces"',
'title': 'app_is_running',
'color': "green",
'timestamp': datetime.datetime.now().timestamp(),
'timestamp_readable': datetime.datetime.now()
}
@ -38,6 +39,7 @@ def create_status():
status = {
'title': safer_title,
'color': request.args.get("color"),
'timestamp': datetime.datetime.now().timestamp(),
'timestamp_readable': datetime.datetime.now()
}
@ -57,7 +59,7 @@ def get_statuses_raw():
@app.route('/', methods=['GET'])
def get_statuses():
long_agos = [humanfriendly.format_timespan(datetime.datetime.now().timestamp() - status['timestamp']) for status in statuses[::-1]]
return render_template("list.html",
return render_template("index.html",
statuses = statuses[::-1],
long_agos = long_agos)

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static/css/style.css
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.statuses tr td {
border: 1px solid black;
padding: 5px;
}

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templates/index.html Normal file
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<html>
<head>
<link href="/static/css/style.css" rel="stylesheet">
</head>
<body>
<div id="countdown"><span id="countdown_numbers"></span> seconds until refresh</div>
<script>
(function countdown(remaining) {
if(remaining <= 0)
location.reload(true);
document.getElementById('countdown_numbers').innerHTML = remaining;
setTimeout(function(){ countdown(remaining - 1); }, 1000);
})(15); // n seconds
</script>
<table class = "statuses">
<tr><th>What Happened?</th><th>When Did It Happen?</th><th>How Long Has It Been?</th></tr>
{% for status in statuses %}
<tr>
<td style="background-color: {{ status.color }}">{{ status.title }}</td><td>{{ status.timestamp_readable }}</td><td>{{ long_agos[loop.index0] }}</td>
</tr>
{% endfor %}
</table>
<h2>How does this work?</h2>
<p>Send a curl (or similar) request from any script or code and include your username and
password (see app.py, @auth.get_password).</p>
<code>
curl -u username:password -i "http://localhost:5000/new?title=a_status_without_spaces_goes_here"
</code>
<p>The entire list of statuses is kept in memory and limited to 1000 (or whatever you set
it to). If your service or server restarts, the list is wiped out.</p>
</body>
</html>

19
templates/list.html
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@ -1,19 +0,0 @@
<html>
<head>
<link href="/static/css/style.css" rel="stylesheet">
</head>
<body>
<table class = "statuses">
<tr><th>What Happened?</th><th>When Did It Happen?</th><th>How Long Has It Been?</th></tr>
{% for status in statuses %}
<tr>
<td>{{ status.title }}</td><td>{{ status.timestamp_readable }}</td><td>{{ long_agos[loop.index0] }}</td>
</tr>
{% endfor %}
</table>
</body>
</html>