Track bundled vendor runtime sources

vendor/Agent-Reach/agent_reach/channels/v2ex.py

@@ -0,0 +1,214 @@
+# -*- coding: utf-8 -*-
+"""V2EX — public API channel for topics, nodes, users, and replies."""
+
+import json
+import urllib.request
+from typing import Any
+from .base import Channel
+
+_UA = "agent-reach/1.0"
+_TIMEOUT = 10
+
+
+def _get_json(url: str) -> Any:
+    """Fetch *url* and return parsed JSON. Raises on HTTP/network errors."""
+    req = urllib.request.Request(url, headers={"User-Agent": _UA})
+    with urllib.request.urlopen(req, timeout=_TIMEOUT) as resp:
+        return json.loads(resp.read().decode("utf-8"))
+
+
+class V2EXChannel(Channel):
+    name = "v2ex"
+    description = "V2EX 节点、主题与回复"
+    backends = ["V2EX API (public)"]
+    tier = 0
+
+    # ------------------------------------------------------------------ #
+    # URL routing
+    # ------------------------------------------------------------------ #
+
+    def can_handle(self, url: str) -> bool:
+        from urllib.parse import urlparse
+        d = urlparse(url).netloc.lower()
+        return "v2ex.com" in d
+
+    # ------------------------------------------------------------------ #
+    # Health check
+    # ------------------------------------------------------------------ #
+
+    def check(self, config=None):
+        try:
+            _get_json(
+                "https://www.v2ex.com/api/topics/show.json?node_name=python&page=1"
+            )
+            self.active_backend = self.backends[0]
+            return "ok", "公开 API 可用（热门主题、节点浏览、主题详情、用户信息）"
+        except Exception as e:
+            self.active_backend = None
+            return "warn", f"V2EX API 连接失败（可能需要代理）：{e}"
+
+    # ------------------------------------------------------------------ #
+    # Data-fetching methods
+    # ------------------------------------------------------------------ #
+
+    def get_hot_topics(self, limit: int = 20) -> list:
+        """获取热门帖子列表。
+
+        Returns a list of dicts with keys:
+          title, url, replies, node_name, node_title, content
+        """
+        data = _get_json("https://www.v2ex.com/api/topics/hot.json")
+        results = []
+        for item in data[:limit]:
+            node = item.get("node") or {}
+            content = item.get("content", "") or ""
+            results.append(
+                {
+                    "id": item.get("id", 0),
+                    "title": item.get("title", ""),
+                    "url": item.get("url", ""),
+                    "replies": item.get("replies", 0),
+                    "node_name": node.get("name", ""),
+                    "node_title": node.get("title", ""),
+                    "content": content[:200],
+                    "created": item.get("created", 0),
+                }
+            )
+        return results
+
+    def get_node_topics(self, node_name: str, limit: int = 20) -> list:
+        """获取指定节点的最新帖子。
+
+        Args:
+            node_name: 节点名称，如 "python"、"tech"、"jobs"
+            limit:     最多返回条数
+
+        Returns a list of dicts with keys:
+          title, url, replies, node_name, node_title, content
+        """
+        url = (
+            f"https://www.v2ex.com/api/topics/show.json"
+            f"?node_name={node_name}&page=1"
+        )
+        data = _get_json(url)
+        results = []
+        for item in data[:limit]:
+            node = item.get("node") or {}
+            content = item.get("content", "") or ""
+            results.append(
+                {
+                    "id": item.get("id", 0),
+                    "title": item.get("title", ""),
+                    "url": item.get("url", ""),
+                    "replies": item.get("replies", 0),
+                    "node_name": node.get("name", node_name),
+                    "node_title": node.get("title", ""),
+                    "content": content[:200],
+                    "created": item.get("created", 0),
+                }
+            )
+        return results
+
+    def get_topic(self, topic_id: int) -> dict:
+        """获取单个帖子详情和回复列表。
+
+        Args:
+            topic_id: 帖子 ID（从 URL https://www.v2ex.com/t/<id> 中获取）
+
+        Returns a dict with keys:
+          id, title, url, content, replies_count, node_name, node_title,
+          author, created, replies (list of dicts with: author, content, created)
+        """
+        topic_data = _get_json(
+            f"https://www.v2ex.com/api/topics/show.json?id={topic_id}"
+        )
+        # API returns a list even for single-ID queries
+        if isinstance(topic_data, list):
+            topic = topic_data[0] if topic_data else {}
+        else:
+            topic = topic_data
+
+        node = topic.get("node") or {}
+        member = topic.get("member") or {}
+
+        # Fetch replies (first page)
+        try:
+            replies_raw = _get_json(
+                f"https://www.v2ex.com/api/replies/show.json"
+                f"?topic_id={topic_id}&page=1"
+            )
+        except Exception:
+            replies_raw = []
+
+        replies = [
+            {
+                "author": (r.get("member") or {}).get("username", ""),
+                "content": r.get("content", ""),
+                "created": r.get("created", 0),
+            }
+            for r in (replies_raw or [])
+        ]
+
+        return {
+            "id": topic.get("id", topic_id),
+            "title": topic.get("title", ""),
+            "url": topic.get("url", f"https://www.v2ex.com/t/{topic_id}"),
+            "content": topic.get("content", ""),
+            "replies_count": topic.get("replies", 0),
+            "node_name": node.get("name", ""),
+            "node_title": node.get("title", ""),
+            "author": member.get("username", ""),
+            "created": topic.get("created", 0),
+            "replies": replies,
+        }
+
+    def get_user(self, username: str) -> dict:
+        """获取用户信息。
+
+        Args:
+            username: V2EX 用户名
+
+        Returns a dict with keys:
+          id, username, url, website, twitter, psn, github, btc,
+          location, bio, avatar, created
+        """
+        data = _get_json(
+            f"https://www.v2ex.com/api/members/show.json?username={username}"
+        )
+        return {
+            "id": data.get("id", 0),
+            "username": data.get("username", username),
+            "url": data.get("url", f"https://www.v2ex.com/member/{username}"),
+            "website": data.get("website", ""),
+            "twitter": data.get("twitter", ""),
+            "psn": data.get("psn", ""),
+            "github": data.get("github", ""),
+            "btc": data.get("btc", ""),
+            "location": data.get("location", ""),
+            "bio": data.get("bio", ""),
+            "avatar": data.get("avatar_large", data.get("avatar_normal", "")),
+            "created": data.get("created", 0),
+        }
+
+    def search(self, query: str, limit: int = 10) -> list:
+        """搜索帖子。
+
+        注意：V2EX 公开 API 暂不支持全文搜索端点（/api/search.json 不可用）。
+        本方法通过 Jina Reader 代理 V2EX 站内搜索页面获取结果（纯文本，无结构化数据）。
+
+        如需精确搜索，建议直接访问 https://www.v2ex.com/?q=<query> 或
+        使用 Exa channel 的 site:v2ex.com 搜索。
+
+        Returns:
+            list of dicts with keys: title, url, snippet
+            如果搜索不可用，返回包含单条 {"error": str} 的列表。
+        """
+        return [
+            {
+                "error": (
+                    "V2EX 公开 API 不提供搜索端点。"
+                    f"建议改用：https://www.v2ex.com/?q={query} "
+                    "或通过 Exa channel 使用 site:v2ex.com 搜索。"
+                )
+            }
+        ]