128 lines
3.7 KiB
Python
128 lines
3.7 KiB
Python
import dbm
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import json
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import requests
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from bs4 import BeautifulSoup
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from flask import Flask
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class Store:
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def __init__(self, dbo):
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self.db = dbo
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def add_version(self, pkg, version, bdate, branch='v3.11', arch='x86_64'):
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pkg_key = json.dumps((pkg, branch, arch))
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versions = json.loads(self.db.get(pkg_key, "{}"))
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if bdate not in versions:
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versions[bdate] = version
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self.db[pkg_key] = json.dumps(versions)
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def get_feed(self, pkgs=None, branch='v3.11', arch='x86_64'):
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items = []
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if not pkgs:
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pkgs = ['bash']
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for pkg in pkgs:
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pkg_key = json.dumps((pkg, branch, arch))
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items = items + [(pkg, x[0], x[1]) for x in json.loads(self.db.get(pkg_key, "{}")).items()]
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return gen_feed(items)
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app = Flask(__name__)
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db = dbm.open('/data/cache', 'c')
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pkg_store = Store(db)
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def get_release(pkg, branch="v3.11", arch="x86_64"):
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req = requests.get(
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"https://pkgs.alpinelinux.org/packages?name={}&branch={}&arch={}".format(
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pkg,
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branch,
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arch,
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)
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)
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soup = BeautifulSoup(req.text, 'html.parser')
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if not soup.find_all("td", class_="version"):
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return None
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if branch == "edge": # literal edge case -_-
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ver_link = soup.find_all("td", class_="version")[0].contents[1]
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version = ver_link.find_all("a")[0].contents[0]
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else:
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version = soup.find_all("td", class_="version")[0].contents[0]
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bdate = soup.find_all("td", class_="bdate")[0].contents[0]
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return (version, bdate)
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def gen_feed(items):
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from feedgen.feed import FeedGenerator
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from slugify import slugify
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feedgen = FeedGenerator()
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feedgen.id('https://alprss.zknt.org/feed/1')
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feedgen.title('alpine packagefeed')
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feedgen.link(href='https://alprss.zknt.org/', rel="alternate")
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feedgen.description('packages')
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for item in items:
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feedentry = feedgen.add_entry()
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feedentry.id('https://alprss.zknt.org/{}/{}-{}'.format(slugify(item[0]), slugify(item[2]), slugify(item[1])))
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feedentry.title("{} version: {}".format(item[0], item[2]))
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feedentry.published(item[1] + ' UTC')
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return feedgen
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@app.route('/rss')
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def handle():
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""" Dump all known packags to feed. """
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for pkg in ["bash"]:
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try:
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version, bdate = get_release(pkg)
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pkg_store.add_version(pkg, version, bdate)
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except TypeError:
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pass
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return pkg_store.get_feed().rss_str()
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@app.route('/rss/<pkglist>')
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def handle_list(pkglist):
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for pkg in pkglist.split(','):
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try:
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version, bdate = get_release(pkg)
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pkg_store.add_version(pkg, version, bdate)
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except TypeError:
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pass
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return pkg_store.get_feed(pkglist.split(',')).rss_str()
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@app.route('/rss/<branch>/<arch>/<pkglist>')
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def handle_params(branch, arch, pkglist):
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for pkg in pkglist.split(','):
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try:
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version, bdate = get_release(pkg, branch=branch, arch=arch)
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pkg_store.add_version(pkg, version, bdate, branch, arch)
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except TypeError:
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pass
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return pkg_store.get_feed(pkglist.split(','), branch, arch).rss_str()
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@app.route('/')
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def index():
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import markdown
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return markdown.markdown("""
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# alprss
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Provide alpine package search results as RSS feed.
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## Usage:
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GET /rss/your,package,list
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This will combine results for the packages `your`, `package` and `list`.
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Requesting information on non-existant packages will result in empty output.
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Search is restricted to alpines latest stable branch, and arch x86_64 by default.
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GET /rss/branch/arch/your,package,list
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Same as above, but queries supplied alpine branch and arch.
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### Example:
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curl https://alprss.zknt.org/rss/vim,emacs
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""")
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