toolkit/mangle/generators/rss.py
2023-09-05 02:35:23 -07:00

237 lines
8.1 KiB
Python

#!/usr/bin/env python3
# -*-:python; coding:utf-8; -*-
# author: Louis Abel <label@rockylinux.org>
# modified version of repo-rss from yum utils
import sys
import os
import argparse
import time
import binascii
import dnf
import dnf.exceptions
#from dnf.comps import Comps
import libxml2
def to_unicode(string: str) -> str:
"""
Convert to unicode
"""
if isinstance(string, bytes):
return string.decode('utf8')
if isinstance(string, str):
return string
return str(string)
class DnfQuiet(dnf.Base):
"""
DNF object
"""
def __init__(self):
dnf.Base.__init__(self)
def get_recent(self, days=1):
"""
Return most recent packages from dnf sack
"""
recent = []
now = time.time()
recentlimit = now-(days*86400)
ftimehash = {}
if self.conf.showdupesfromrepos:
available = self.sack.query().available().filter()
else:
available = self.sack.query().available().filter(latest_per_arch=1)
for package in available:
ftime = int(package.buildtime)
if ftime > recentlimit:
if ftime not in ftimehash:
ftimehash[ftime] = [package]
else:
ftimehash[ftime].append(package)
for sometime in ftimehash.keys():
for package in ftimehash[sometime]:
recent.append(package)
return recent
class RepoRSS:
def __init__(self, filename='repo-rss.xml'):
self.description = 'Repository RSS'
self.link = 'http://dnf.baseurl.org'
self.title = 'Recent Packages'
self.do_file(filename)
self.do_doc()
def do_doc(self):
self.doc = libxml2.newDoc('1.0')
self.xmlescape = self.doc.encodeEntitiesReentrant
rss = self.doc.newChild(None, 'rss', None)
rss.setProp('version', '2.0')
self.rssnode = rss.newChild(None, 'channel', None)
def do_file(self, filename):
if filename[0] != '/':
cwd = os.getcwd()
self.filename = os.path.join(cwd, filename)
else:
self.filename = filename
try:
self.file_open = open(self.filename, 'w+')
except IOError as exc:
print(f'Error opening file {self.filename}: {exc}', file=sys.stderr)
sys.exit(1)
def rsspackage(self, package):
rfc822_format = "%a, %d %b %Y %X GMT"
changelog_format = "%a, %d %b %Y GMT"
package_hex = binascii.hexlify(package.chksum[1]).decode()
item = self.rssnode.newChild(None, 'item', None)
title = self.xmlescape(str(package))
description = package.description
item.newChild(None, 'title', title)
date = time.gmtime(float(package.buildtime))
item.newChild(None, 'pubDate', time.strftime(rfc822_format, date))
# pylint: disable=line-too-long
item.newChild(None, 'guid', package_hex).setProp("isPermaLink", "false")
link = package.remote_location()
item.newChild(None, 'link', self.xmlescape(link))
changelog = ''
count = 0
if package.changelogs is not None:
changelog_list = package.changelogs
else:
changelog_list = []
for meta in changelog_list:
count += 1
if count > 3:
changelog += '...'
break
date = meta['timestamp'].strftime(changelog_format)
author = meta['author']
desc = meta['text']
changelog += f'{date} - {author}\n{desc}\n\n'
# pylint: disable=line-too-long,consider-using-f-string
description = '<p><strong>{}</strong> - {}</p>\n\n'.format(self.xmlescape(package.name), self.xmlescape(package.summary))
description += '<p>%s</p>\n\n<p><strong>Change Log:</strong></p>\n\n' % self.xmlescape(description.replace("\n", "<br />\n"))
description += self.xmlescape('<pre>%s</pre>' % self.xmlescape(changelog))
item.newChild(None, 'description', description)
return item
def start_rss(self):
"""return string representation of rss preamble"""
rfc822_format = "%a, %d %b %Y %X GMT"
now = time.strftime(rfc822_format, time.gmtime())
rssheader = f"""<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0">
<channel>
<title>{self.title}</title>
<link>{self.link}</link>
<description>{self.description}</description>
<pubDate>{now}</pubDate>
<generator>DNF</generator>
"""
self.file_open.write(rssheader)
def do_package(self, package):
item = self.rsspackage(package)
self.file_open.write(item.serialize("utf-8", 1))
item.unlinkNode()
item.freeNode()
del item
def close_rss(self):
end="\n </channel>\n</rss>\n"
self.file_open.write(end)
self.file_open.close()
del self.file_open
self.doc.freeDoc()
del self.doc
def make_rss_feed(filename, title, link, description, recent, dnfobj):
rssobj = RepoRSS(filename)
rssobj.title = title
rssobj.link = link
rssobj.description = description
rssobj.start_rss()
if len(recent) > 0:
for package in recent:
rssobj.do_package(package)
rssobj.close_rss()
def main(options):
days = options.days
repoids = options.repoids
dnfobj = DnfQuiet()
if options.config:
dnfobj.conf.read(filename=options.config)
if os.geteuid() != 0 or options.tempcache:
cachedir = dnfobj.conf.cachedir
if cachedir is None:
print('Error: Could not make cachedir')
sys.exit(50)
dnfobj.conf.cachedir = cachedir
try:
dnfobj.read_all_repos()
except:
print('Could not read repos', file=sys.stderr)
sys.exit(1)
if len(repoids) > 0:
for repo in dnfobj.repos:
repoobj = dnfobj.repos[repo]
if repo not in repoids:
repoobj.disable()
else:
repoobj.enable()
if options.module_hotfixes:
try:
repoobj.set_or_append_opt_value('module_hotfixes', '1')
except:
print('Warning: dnf library is too old to support setting values')
repoobj.load_metadata_other = True
print('Getting repo data')
try:
dnfobj.fill_sack()
except:
print('repo data failure')
sys.exit(1)
sack_query = dnfobj.sack.query().available()
recent = sack_query.filter(latest_per_arch=1)
sorted_recents = sorted(set(recent.run()), key=lambda pkg: pkg.buildtime)
sorted_recents.reverse()
make_rss_feed(options.filename, options.title, options.link, options.description, sorted_recents, dnfobj)
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument('--filename', type=str, default='repo-rss.xml',
help='File patch to export to')
parser.add_argument('--link', type=str, default='http://yum.baseurl.org',
help='URL link to repository root')
parser.add_argument('--title', type=str, default='RSS Repository - Recent Packages',
help='Title of the feed')
parser.add_argument('--description', type=str, default='Most recent packages in Repositories',
help='Description of the feed')
parser.add_argument('--days', type=int, default=7, help='Number of days to look back')
parser.add_argument('--tempcache', action='store_true',
help='Temporary cache location (automatically on if not root)')
parser.add_argument('--module-hotfixes', action='store_true',
help='Only use this to catch all module packages')
parser.add_argument('--arches', action='append', default=[],
help='List of architectures to care about')
parser.add_argument('--config', type=str, default='',
help='A dnf configuration to use if you do not want to use the default')
parser.add_argument('repoids', metavar='N', type=str, nargs='+')
results = parser.parse_args()
main(results)