Add rss.py

files/usr/libexec/rocky/rss.py

@@ -0,0 +1,221 @@
+#!/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()
+                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')
+    parser.add_argument('--link', type=str, default='http://yum.baseurl.org')
+    parser.add_argument('--title', type=str, default='RSS Repository - Recent Packages')
+    parser.add_argument('--description', type=str, default='Most recent packages in Repositories')
+    parser.add_argument('--days', type=int, default=7)
+    parser.add_argument('--tempcache', action='store_true')
+    parser.add_argument('--arches', action='append', default=[])
+    parser.add_argument('--config', type=str, default='')
+    parser.add_argument('repoids', metavar='N', type=str, nargs='+')
+    results = parser.parse_args()
+
+    main(results)

tasks/rss.yml

@@ -2,6 +2,9 @@
 - name: Ensure docroot actually exists
   ansible.builtin.file:
     path: "{{ feeds_output_dir }}"
+    owner: '10004'
+    group: '10005'
+    mode: '0755'
     state: directory
 
 - name: Generate repo file for RSS feed data
@@ -19,4 +22,12 @@
     owner: root
     group: root
     mode: '0755'
+
+- name: Deploy the RSS feeder script itself
+  ansible.builtin.copy:
+    src: "usr/libexec/rocky/rss.py"
+    dest: "/usr/libexec/rocky/rss.py"
+    owner: root
+    group: root
+    mode: '0755'
 ...