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generate rss feed #11

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merged 2 commits into from
Aug 28, 2021
Merged

generate rss feed #11

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9fa9813
generate rss feed
frnsys Dec 29, 2020
f502ee9
:lipstick:
breezykermo May 1, 2021
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209 changes: 121 additions & 88 deletions server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,10 @@
import base64
import hashlib
import argparse
from email import utils
from datetime import datetime
from xml.etree import ElementTree as etree

from collections import defaultdict
from http.server import BaseHTTPRequestHandler, HTTPServer

Expand All @@ -33,6 +37,112 @@ def idx(obj, base, overrides):
overrides = args.OVERRIDES.split(";")
overrides = [x for x in overrides if len(x.split(":")) == 2]

rss_meta = {
'title': 'hili',
'description': 'highlights',
}
rss_mapping = {
'link': lambda i: idx(i, 'href', overrides),
'title': lambda i: idx(i, 'html', overrides),
'description': lambda i: idx(i, 'text', overrides),
'pubDate': lambda i: utils.format_datetime(datetime.fromtimestamp(i['time']/1000))
}

def gen_rss(items):
rss = etree.Element('rss', version='2.0')
channel = etree.SubElement(rss, 'channel')
for key, val in rss_meta.items():
sub = etree.SubElement(channel, key)
sub.text = val

for item in items:
item_el = etree.SubElement(channel, 'item')
for tag, fn in rss_mapping.items():
el = etree.SubElement(item_el, tag)
el.text = fn(item)
for tag in item['tags']:
el = etree.SubElement(item_el, 'category')
el.text = tag
return etree.tostring(rss)

def gen_html(items):
html = ['''
<html>
<head>
<meta charset="utf8">
<style>
html {
overflow-x: hidden;
}
article {
margin: 4em auto;
max-width: 720px;
line-height: 1.4;
padding-bottom: 4em;
border-bottom: 2px solid black;
font-family: sans-serif;
}
.highlight {
margin: 2em 0;
}
.note {
margin-top: 0.5em;
text-align: right;
font-size: 0.9em;
}
.tags {
color: #888;
margin-top: 1em;
font-size: 0.8em;
}
a {
color: blue;
}
img {
max-width: 100%;
}
</style>
</head>
<body>''']

grouped = defaultdict(list)
for d in items:
grouped[idx(d, 'href', overrides)].append(d)

for href, group in sorted(grouped.items(), key=lambda g: -max([idx(d, 'time', overrides) for d in g[1]])):
html.append('''
<article>
<h4><a href="{href}">{title}</a></h4>'''.format(href=href, title=group[0].get('title')))
for d in group:
if 'file' in d:
html.append('''
<div class="highlight">
<img src="{src}">
<p>{text}</p>
<div class="tags"><em>{tags}</em></div>
</div>
'''.format(
src=idx(d, 'file', overrides)['src'],
text=idx(d, 'text', overrides),
tags=', '.join(idx(d, 'tags', overrides))
))
else:
html.append('''
<div class="highlight">
{html}
<div class="note">{note}</div>
<div class="tags"><em>{tags}</em></div>
</div>
'''.format(
html=idx(d, 'html', overrides),
note=idx(d, 'note', overrides),
tags=', '.join(idx(d, 'tags', overrides))
))
html.append('</article>')

html.append('</body></html>')
return '\n'.join(html).encode('utf8')


class JSONRequestHandler(BaseHTTPRequestHandler):
def do_POST(self):
Expand Down Expand Up @@ -83,96 +193,19 @@ def do_POST(self):
return

def do_GET(self):
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.send_header('Access-Control-Allow-Origin', '*')
self.end_headers()

data = []
with open(args.FILE, 'r') as f:
for l in f.read().splitlines():
data.append(json.loads(l))

# Reverse chron
html = ['''
<html>
<head>
<meta charset="utf8">
<style>
html {
overflow-x: hidden;
}
article {
margin: 4em auto;
max-width: 720px;
line-height: 1.4;
padding-bottom: 4em;
border-bottom: 2px solid black;
font-family: sans-serif;
}
.highlight {
margin: 2em 0;
}
.note {
margin-top: 0.5em;
text-align: right;
font-size: 0.9em;
}
.tags {
color: #888;
margin-top: 1em;
font-size: 0.8em;
}
a {
color: blue;
}
img {
max-width: 100%;
}
</style>
</head>
<body>''']

grouped = defaultdict(list)
for d in data:
grouped[idx(d, 'href', overrides)].append(d)

for href, group in sorted(grouped.items(), key=lambda g: -max([idx(d, 'time', overrides) for d in g[1]])):
html.append('''
<article>
<h4><a href="{href}">{title}</a></h4>'''.format(href=href, title=group[0].get('title')))
for d in group:
if 'file' in d:
html.append('''
<div class="highlight">
<img src="{src}">
<p>{text}</p>
<div class="tags"><em>{tags}</em></div>
</div>
'''.format(
src=idx(d, 'file', overrides)['src'],
text=idx(d, 'text', overrides),
tags=', '.join(idx(d, 'tags', overrides))
))
else:
html.append('''
<div class="highlight">
{html}
<div class="note">{note}</div>
<div class="tags"><em>{tags}</em></div>
</div>
'''.format(
html=idx(d, 'html', overrides),
note=idx(d, 'note', overrides),
tags=', '.join(idx(d, 'tags', overrides))
))
html.append('</article>')

html.append('</body></html>')
items = map(json.loads, f.read().splitlines())

# Response
html = '\n'.join(html).encode('utf8')
self.wfile.write(html)
if self.path.startswith('/rss.xml'):
self.send_response(200)
self.send_header('Content-type', 'text/xml')
self.end_headers()
self.wfile.write(gen_rss(items))
else:
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
self.wfile.write(gen_html(items))


if __name__ == '__main__':
Expand Down