Initial AlmaLinux security mirror

.gitea/workflows/update.yml

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+name: AlmaLinux mirror
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "37 */6 * * *"
+
+permissions:
+  contents: write
+
+concurrency:
+  group: vuln-almalinux-mirror
+  cancel-in-progress: false
+
+jobs:
+  mirror:
+    runs-on: vulnerability
+    timeout-minutes: 180
+    env:
+      CACHE_ROOT: /vuln-cache/vuln-almalinux
+      REPO_URL: https://git.apex-project.de/VULN/vuln-almalinux.git
+      REPO_NAME: vuln-almalinux
+      GITEA_JOB_TOKEN: ${{ secrets.GITEA_TOKEN }}
+    steps:
+      - name: Prepare job dependencies
+        shell: sh
+        run: |
+          set -eu
+          if command -v apk >/dev/null 2>&1; then
+            apk add --no-cache bash git python3 util-linux ca-certificates coreutils
+          elif command -v apt-get >/dev/null 2>&1; then
+            apt-get update
+            apt-get install -y --no-install-recommends bash git python3 util-linux ca-certificates coreutils
+          else
+            echo 'No supported package manager' >&2
+            exit 1
+          fi
+          /usr/bin/flock --version
+      - name: Mirror using persistent checkout
+        shell: bash
+        run: |
+          set -Eeuo pipefail
+          mkdir -p "$CACHE_ROOT"
+          : "${GITEA_JOB_TOKEN:?GITEA_TOKEN fehlt}"
+          export GIT_CONFIG_COUNT=1
+          export GIT_CONFIG_KEY_0=http.extraHeader
+          export GIT_CONFIG_VALUE_0="Authorization: Basic $(printf 'oauth2:%s' "$GITEA_JOB_TOKEN" | base64 | tr -d '\n')"
+          if [ ! -d "$CACHE_ROOT/repo/.git" ]; then
+            git clone --depth 1 --branch main "$REPO_URL" "$CACHE_ROOT/repo"
+          fi
+          # run-cached.sh owns the only flock lock
+          bash "$CACHE_ROOT/repo/scripts/run-cached.sh"
+      - name: Cache usage
+        if: always()
+        shell: sh
+        run: |
+          test ! -d "$CACHE_ROOT" || du -sh "$CACHE_ROOT"

.gitignore

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+__pycache__/
+*.pyc
+*.tmp

README.md

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+# vuln-almalinux
+
+Official security advisory raw-data mirror for AlmaLinux.
+
+## Gitea Runner
+`runs-on: vulnerability`; shared persistent volume `/vuln-cache/vuln-almalinux`. Single lock in `scripts/run-cached.sh`.
+
+## Workflow
+Runs every 6 hours; see `.gitea/workflows/update.yml`.
+
+## Source
+AlmaLinux official errata.full.json for releases 8, 9, 10. HTTP conditional requests, no deletion on source errors.
+
+## Limitations
+Production full sync has not been tested. Raw data must be normalized for accurate package matching.

scripts/common.py

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+import json, os, time, hashlib
+from pathlib import Path
+from urllib.request import Request, urlopen
+from urllib.error import HTTPError
+
+def request(url, headers=None, timeout=90, retries=4):
+    h={"User-Agent":"vulnerability-apex-project-mirror/1.0", "Accept":"application/json"}
+    h.update(headers or {})
+    for attempt in range(retries):
+        try:
+            with urlopen(Request(url,headers=h),timeout=timeout) as response:
+                return response.status, response.read(), dict(response.headers)
+        except HTTPError as err:
+            if err.code == 304: return 304,b'',dict(err.headers)
+            if err.code not in (429,500,502,503,504) or attempt==retries-1: raise
+        except (TimeoutError, OSError):
+            if attempt==retries-1: raise
+        time.sleep(min(30, 2**attempt*2))
+    raise RuntimeError('unreachable')
+
+def store(path, raw):
+    path=Path(path); path.parent.mkdir(parents=True,exist_ok=True)
+    if path.exists() and hashlib.sha256(path.read_bytes()).digest()==hashlib.sha256(raw).digest(): return False
+    temp=path.with_name(path.name+'.tmp')
+    temp.write_bytes(raw); temp.replace(path)
+    return True
+
+def state_file(path, value):
+    store(path,(json.dumps(value,indent=2,ensure_ascii=False,sort_keys=True)+'\n').encode())

scripts/run-cached.sh

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+#!/usr/bin/env bash
+set -Eeuo pipefail
+umask 077
+: "${CACHE_ROOT:?CACHE_ROOT fehlt}"
+: "${REPO_URL:?REPO_URL fehlt}"
+: "${GITEA_JOB_TOKEN:?GITEA_JOB_TOKEN fehlt}"
+mkdir -p "$CACHE_ROOT"
+exec 9>"$CACHE_ROOT/.sync.lock"
+if command -v /usr/bin/flock >/dev/null 2>&1; then LOCK=/usr/bin/flock; else LOCK=$(command -v flock); fi
+"$LOCK" -n 9 || { echo 'Ein anderer Sync verwendet diesen Repository-Cache.' >&2; exit 1; }
+AUTH="Authorization: Basic $(printf 'oauth2:%s' "$GITEA_JOB_TOKEN" | base64 | tr -d '\n')"
+export GIT_CONFIG_COUNT=1 GIT_CONFIG_KEY_0=http.extraHeader GIT_CONFIG_VALUE_0="$AUTH"
+if [ ! -d "$CACHE_ROOT/repo/.git" ]; then
+  if [ -e "$CACHE_ROOT/repo" ]; then echo 'Repo-Verzeichnis existiert ohne .git' >&2; exit 1; fi
+  git clone --depth 1 --branch main "$REPO_URL" "$CACHE_ROOT/repo"
+fi
+cd "$CACHE_ROOT/repo"
+git remote set-url origin "$REPO_URL"
+git fetch origin main
+# Dirty data may be left behind by interrupted imports. Never silently reset it.
+if [ "$(git rev-parse HEAD)" != "$(git rev-parse origin/main)" ]; then
+  if [ -n "$(git status --porcelain)" ]; then
+    echo 'Remote wurde geändert und der Cache enthält ungespeicherte Dateien; kein Reset.' >&2
+    exit 1
+  fi
+  git merge --ff-only origin/main || { echo 'Lokale Commits weichen vom Remote ab; manuelle Prüfung erforderlich.' >&2; exit 1; }
+fi
+python3 scripts/sync.py
+python3 scripts/validate.py
+git config user.name 'Vulnerability Bot'
+git config user.email 'vulnerability-bot@users.noreply.local'
+git add -A data state
+if git diff --cached --quiet; then
+  echo 'Keine Datenänderungen'
+else
+  git -c gc.auto=0 commit -q -m "Update ${REPO_NAME:-vulnerability} $(date -u +%FT%TZ)"
+fi
+if [ "$(git rev-parse HEAD)" != "$(git rev-parse origin/main)" ]; then
+  git -c gc.auto=0 push origin HEAD:main
+fi

scripts/sync.py

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+#!/usr/bin/env python3
+import json, os
+from datetime import datetime, timezone
+from pathlib import Path
+from common import request,store,state_file
+
+ROOT=Path(__file__).resolve().parents[1]
+URL='https://errata.almalinux.org/{major}/errata.full.json'
+
+def check(payload):
+    # Source can be a JSON object or an array; reject HTML/errors.
+    value=json.loads(payload)
+    if not isinstance(value,(dict,list)) or not value:
+        raise ValueError('Unexpected empty AlmaLinux errata response')
+    return value
+
+def main():
+    for major in (8,9,10):
+        dest=ROOT/f'data/almalinux/{major}/errata.full.json'
+        state=ROOT/f'state/{major}.json'
+        meta=json.loads(state.read_text()) if state.exists() else {}
+        headers={}
+        if dest.exists():
+            if meta.get('etag'): headers['If-None-Match']=meta['etag']
+            if meta.get('last_modified'): headers['If-Modified-Since']=meta['last_modified']
+        status,raw,h=request(URL.format(major=major),headers)
+        if status==304:
+            print(f'AlmaLinux {major}: unchanged (HTTP 304)'); continue
+        check(raw)
+        changed=store(dest,raw)
+        state_file(state,{
+            'source':URL.format(major=major),
+            'etag':h.get('ETag',meta.get('etag','')),
+            'last_modified':h.get('Last-Modified',meta.get('last_modified','')),
+            'last_success_utc':datetime.now(timezone.utc).isoformat(),
+            'sha256':__import__('hashlib').sha256(raw).hexdigest(),
+        })
+        print(f'AlmaLinux {major}: {len(raw)} bytes, changed={changed}')
+
+if __name__=='__main__': main()

scripts/validate.py

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+#!/usr/bin/env python3
+import json
+from pathlib import Path
+root=Path(__file__).resolve().parents[1]
+found=0
+for f in sorted((root/'data/almalinux').glob('*/errata.full.json')):
+    x=json.loads(f.read_bytes()); assert isinstance(x,(list,dict)) and x, f
+    found+=1
+if found==0: raise SystemExit('No AlmaLinux files')
+print(f'Validated {found} AlmaLinux raw JSON files')

tests/test_sync.py

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+import sys, unittest
+from pathlib import Path
+sys.path.insert(0,str(Path(__file__).resolve().parents[1]/'scripts'))
+from sync import check
+class TestData(unittest.TestCase):
+    def test_array(self): self.assertIsInstance(check(b'[{"id":"ALSA-2025:1"}]'),list)
+    def test_error_html(self):
+        with self.assertRaises(Exception): check(b'<html>Bad Gateway</html>')
+    def test_empty(self):
+        with self.assertRaises(ValueError): check(b'[]')
+if __name__=='__main__':unittest.main()