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Justin C. Miller
2023-01-28 15:04:42 -08:00
commit 7565ead8c9
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.gitignore vendored Normal file
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__pycache__
/venv

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poem.py Normal file
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from flask import Flask
from pyhash import fnv1a_32
app = Flask(__name__)
hash = fnv1a_32()
ROUND_TRIP = 29132
KM_TO_MI = 0.6213712
num_format = "{:,.0f}"
def validate_key(key):
from os.path import exists
from flask import abort
if not key:
return
try:
int(key, base=16)
except ValueError:
abort(400)
if not exists(f"poems/{key}.txt"):
abort(404)
def response_plain(text):
from flask import make_response
resp = make_response(text)
resp.headers["Content-type"] = "text/plain"
return resp
@app.route("/", methods=["GET"])
@app.route("/<key>", methods=["GET"])
def poem_view(key=""):
from flask import render_template
validate_key(key)
poem = ""
stats = {}
if key:
poem = open(f"poems/{key}.txt", 'r', encoding='utf-8').read()
lines = poem.splitlines()[1:]
words = sum([len(l.split()) for l in lines])
breaks = len(lines) - 1
posts = words + breaks
km = posts * ROUND_TRIP
mi = km * KM_TO_MI
stats = dict(words=words, lines=breaks,
roundtrip=num_format.format(ROUND_TRIP),
km=num_format.format(km),
mi=num_format.format(mi),
)
return render_template("index.html", key=key, poem=poem, stats=stats)
@app.route("/poem/<key>", methods=["GET"])
def poem_get(key):
validate_key(key)
if not key:
return response_plain("")
return response_plain(open(filename, 'r', encoding='utf-8').read())
@app.route("/poem/", methods=["POST"])
@app.route("/poem/<key>", methods=["POST"])
def poem_post(key=""):
from flask import request
validate_key(key)
poem = ""
if key:
poem = open(f"poems/{key}.txt", 'r', encoding='utf-8').read()
addend = request.get_data(as_text=True)
if addend != "\n":
addend = addend.split()[0]
poem = f"{poem}{addend} "
else:
poem += "\n"
newhash = "{0:08x}".format(hash(poem.encode('utf-8')))
with open(f"poems/{newhash}.txt", 'w', encoding='utf-8') as f:
f.write(poem)
return response_plain(newhash)

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*.txt

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requirements.txt Normal file
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flask == 2.2
pyhash == 0.9

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static/main.js Normal file
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function update(key, word) {
let url = "/poem/" + key;
return fetch(url, {
"method": "POST",
"body": word,
})
.then( resp => resp.text() )
.then( text => {
console.log("new key", text);
return text;
});
}
export function update_all(starting_key, words) {
var promise = Promise.resolve(starting_key);
for (const word of words) {
if (word.length < 1) continue;
promise = promise.then( key => {
return update(key, word);
});
}
return promise.then( key => {
return update(key, "\n");
});
}

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<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://cdn.simplecss.org/simple.min.css">
<title>POST mortem</title>
<style>
.post {
font-family: monospace;
}
div.message {
font-size: 1.3rem;
margin: 1rem 1rem 3rem 3rem;
}
div.bordered {
margin-top: 2rem;
padding: 0.8rem;
width: 80%;
border: 1px solid #ccc;
border-radius: 10px;
background: #f0f0f0;
}
blockquote.poem {
white-space: pre;
font-size: 1.5rem;
}
blockquote.poem::first-line {
font-size: 1.8rem;
font-weight: bold;
text-decoration: underline;
margin-bottom: 3rem;
}
</style>
</head>
<body>
<h1><span class="post">POST</span> mortem</h1>
{% if poem %}
<blockquote class="poem" id="poem-quote">{{ poem }}</blockquote>
{% else %}
<div class="message" style="font-style: italic;">
No poem has been started yet, add some words!
</div>
{% endif %}
<form id="add-words-form">
<div>
<label for="addend-input">Enter some words to add:</label>
<input type="text" id="addend-input" style="width: 80%;" />
</div>
<button type="submit">Add Words</button>
</form>
<script type="module">
import { update_all } from '/static/main.js';
let form = document.getElementById('add-words-form');
let input = document.getElementById('addend-input');
form.addEventListener('submit', evt => {
evt.preventDefault();
var key = "{{ key }}";
let words = input.value.split(" ");
update_all(key, words).then( key => {
document.location = "/" + key;
});
});
</script>
{% if key %}
<div class="bordered">
<strong>Mail this URL on to the next person!</strong>
<div id="url-div" style="float: left;"></div>
<button id="copy-button" style="float: right;">Copy to Clipboard</button>
</div>
<script type="module">
let div = document.getElementById('url-div');
let url = document.location;
div.innerHTML = `<a href="${url}">${url}</div>`;
let button = document.getElementById('copy-button');
button.addEventListener('click', evt => {
navigator.clipboard.writeText(url);
button.innerHTML = "Copied!";
button.disabled = true;
setTimeout(() => {
button.innerHTML = "Copy to Clipboard";
button.disabled = false;
}, 2000);
});
</script>
<div class="bordered">
<strong><span class="post">POST</span> distance</strong>
<table style="width: 100%">
<tr><td>Number of words (excl. title)</td><td>{{ stats.words }}</td></tr>
<tr><td>Number of newlines (excl. title)</td><td>{{ stats.lines }}</td></tr>
<tr><td>Round-trip distance</td><td>{{ stats.roundtrip }} km</td></tr>
<tr><td>Total distance</td><td><strong>{{ stats.km }} km</strong> ({{ stats.mi }} mi)</td></tr>
</table>
<img style="width: 100%" src="static/route.png">
</div>
{% endif %}
</body>
</html>