fixup! fixup! Add some webrings

blueprints/root/modules/euroring.py

@@ -1,91 +1,28 @@
 from __future__ import annotations
 
 import atexit
-import json
 import os
 import re
-import tempfile
 from time import time
 from urllib.parse import urlsplit
 
-import fcntl
 import requests
 from apscheduler.schedulers.background import BackgroundScheduler
 from apscheduler.triggers.interval import IntervalTrigger
 
-
-def _cache_dir() -> str:
-    path = os.environ.get("LAIR_CACHE_DIR", "/tmp/lair-cache")
-    os.makedirs(path, exist_ok=True)
-    return path
+from blueprints.risdeveau.modules.api.scheduler_guard import should_start_scheduler
+from blueprints.risdeveau.modules.api.shared_cache import (
+    atomic_write_json,
+    cache_file,
+    load_json_if_newer,
+)
 
 
-def _cache_file(name: str) -> str:
-    return os.path.join(_cache_dir(), f"{name}.json")
-
-
-def _atomic_write_json(path: str, payload: dict) -> None:
-    parent = os.path.dirname(path) or "."
-    fd, tmp = tempfile.mkstemp(prefix=".tmp-", dir=parent)
-    try:
-        with os.fdopen(fd, "w", encoding="utf-8") as f:
-            json.dump(payload, f, ensure_ascii=False, separators=(",", ":"))
-        os.replace(tmp, path)
-    finally:
-        try:
-            if os.path.exists(tmp):
-                os.unlink(tmp)
-        except Exception:
-            pass
-
-
-_CACHE_MTIME = 0.0
-_LOCK_FD: int | None = None
-
-
-def _load_json_if_newer(path: str, last_mtime: float) -> tuple[dict | None, float]:
-    try:
-        stat = os.stat(path)
-    except FileNotFoundError:
-        return None, last_mtime
-    except Exception:
-        return None, last_mtime
-
-    mtime = float(stat.st_mtime)
-    if mtime <= float(last_mtime):
-        return None, last_mtime
-
-    try:
-        with open(path, "r", encoding="utf-8") as f:
-            return json.load(f), mtime
-    except Exception:
-        return None, last_mtime
-
-
-def _should_start_scheduler() -> bool:
-    global _LOCK_FD
-    if _LOCK_FD is not None:
-        return True
-
-    lock_path = os.environ.get("LAIR_SCHED_LOCK", "/tmp/lair-scheduler.lock")
-    fd = os.open(lock_path, os.O_CREAT | os.O_RDWR, 0o644)
-
-    try:
-        fcntl.flock(fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
-        _LOCK_FD = fd
-        return True
-    except BlockingIOError:
-        os.close(fd)
-        return False
-    except Exception:
-        try:
-            os.close(fd)
-        finally:
-            return False
-
-
-EURORING_SOURCE_URL = "https://euroring.neocities.org/scripts/onionring-variables.js"
-EURORING_SITE_URL = "https://lair.moe"
+EURORING_SOURCE_URL = os.environ.get(
+    "EURORING_SOURCE_URL",
+    "https://euroring.neocities.org/scripts/onionring-variables.js",
+)
+EURORING_SITE_URL = os.environ.get("EURORING_SITE_URL", "https://lair.moe")
 EURORING_TIMEOUT = float(os.environ.get("EURORING_TIMEOUT", "10"))
 
 
@@ -102,8 +39,9 @@ data = {
     "last_updated": 0,
 }
 
-_IS_WRITER = _should_start_scheduler()
-_CACHE_PATH = _cache_file("webring")
+_IS_WRITER = should_start_scheduler() if data["enabled"] else False
+_CACHE_PATH = cache_file("webring")
+_CACHE_MTIME = 0.0
 
 
 def _site_key(url: str) -> tuple[str, int | None, str, str]:
@@ -126,13 +64,6 @@ def _parse_js_string_value(text: str, variable: str) -> str | None:
     return match.group(2).strip()
 
 
-def _parse_bool_value(text: str, variable: str) -> bool | None:
-    match = re.search(rf"var\s+{re.escape(variable)}\s*=\s*(true|false)\s*;", text)
-    if not match:
-        return None
-    return match.group(1) == "true"
-
-
 def _parse_sites(text: str) -> list[str]:
     match = re.search(r"var\s+sites\s*=\s*\[(.*?)\]\s*;", text, re.S)
     if not match:
@@ -173,8 +104,7 @@ def _compute_ring_payload(text: str) -> dict:
         raise ValueError(f"site not found in ring: {EURORING_SITE_URL}")
 
     ring_name = _parse_js_string_value(text, "ringName") or "Webring"
-    use_index = _parse_bool_value(text, "useIndex")
-    index_url = _parse_js_string_value(text, "indexPage") if use_index else None
+    index_url = _parse_js_string_value(text, "indexPage")
 
     return {
         "enabled": True,
@@ -195,7 +125,7 @@ def refresh_cache() -> None:
     if _IS_WRITER:
         return
 
-    payload, mtime = _load_json_if_newer(_CACHE_PATH, _CACHE_MTIME)
+    payload, mtime = load_json_if_newer(_CACHE_PATH, _CACHE_MTIME)
     if payload is None:
         return
 
@@ -203,10 +133,12 @@ def refresh_cache() -> None:
     _CACHE_MTIME = mtime
 
 
+
 def _persist_cache() -> None:
     if not _IS_WRITER:
         return
-    _atomic_write_json(_CACHE_PATH, data)
+    atomic_write_json(_CACHE_PATH, data)
+
 
 
 def fetch_webring() -> None:

blueprints/root/templates/base.pug

@@ -6,6 +6,25 @@ html(lang=g.locale)
     link(rel="stylesheet" href="/static/style/main.css")
     link(rel="icon" type="image/webp" href="/static/img/lair.webp")
 
+    //- Yggdrasil links
+    link(rel="ygg-banner" href="/static/img/88x31/lair.gif")
+
+    link(
+      rel="alternate"
+      data-ygg-type="clearnet"
+      href="https://lair.moe"
+      title="Clearnet address")
+    link(
+      rel="alternate"
+      data-ygg-type="alfis"
+      href="http://lair.ygg"
+      title="Alfis domain")
+    link(
+      rel="alternate"
+      data-ygg-type="ygg-ipv6"
+      href="http://[201:96:5188::a690:7908:da7a]"
+      title="Direct IPv6")
+
     script(src="/static/script/copy-mono.js")
 
     if request.headers.get('DNT') != "1":
@@ -24,6 +43,16 @@ html(lang=g.locale)
     meta(property="og:image" value="https://lair.moe/static/img/lair.webp")
     meta(property="og:description" value=_("description"))
 
+    //- Yggdrasil meta
+    meta(name="ygg-category" content="service")
+    meta(name="ygg-topic" content="federation")
+    meta(name="ygg-topic" content="tools")
+
+    meta(name="ygg-language" content="ru")
+    meta(name="ygg-language" content="en")
+    meta(name="ygg-language" content="de")
+    meta(name="ygg-language" content="fr")
+    meta(name="ygg-language" content="jp")
   body
     include root/templates/header.pug
 

blueprints/root/templates/index.pug

@@ -67,7 +67,16 @@ block content
     p
       strong Yggdrasil
       | : 
-      span.mono 200:ee1:bad2:1732:4b91:c3e3:2f08:29b3
+      ul
+        li
+          = "IPv6: "
+          span.mono 201:96:5188::a690:7908:da7a
+        li
+          = "DNS: "
+          span.mono ygg.lair.moe
+        li
+          = "Alfis: "
+          span.mono lair.ygg
 
   .webring
     a.block(href="https://nixwebr.ing/prev/lair" rel="external prev") ←
@@ -79,11 +88,7 @@ block content
     a.block(href="https://ctp-webr.ing/" rel="external") Catppuccin webring
     a.block(href="https://ctp-webr.ing/lair/next" rel="external next") →
 
-  if euroring.prev_url and euroring.next_url
-    .webring
-      a.block(href=euroring.prev_url rel="external prev") ←
-      if euroring.index_url
-        a.block(href=euroring.index_url rel="external") Euroring
-      else
-        span.block= euroring.ring_name
-      a.block(href=euroring.next_url rel="external next") →
+  .webring
+    a.block(href=euroring.prev_url rel="external prev") ←
+    a.block(href=euroring.index_url rel="external") Euroring
+    a.block(href=euroring.next_url rel="external next") →