270 lines
9.7 KiB
Python
270 lines
9.7 KiB
Python
import os
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import urllib.parse
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import socket
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import json
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from http.server import ThreadingHTTPServer, SimpleHTTPRequestHandler
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import sys
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from utils.hikvision_cam_utils import get_organization_list, get_final_list, get_camera_preview_url
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# ========== 海康威视 API 配置 ==========
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ROOT_PARENT_INDEX_CODE = "4fa15af07b6b400f94af1e35d8235c30"
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def transform_org_node(item, parent_id=None):
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"""将海康威视组织节点转换为前端期望的格式"""
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return {
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"id": item["indexCode"],
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"name": item["name"],
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"parent_id": parent_id or item.get("parentIndexCode"),
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"is_leaf": False, # 组织机构节点不是叶子节点
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"stream_url": None
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}
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def transform_camera_node(item, parent_id=None):
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"""将海康威视摄像头节点转换为前端期望的格式（叶子节点）"""
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return {
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"id": item["cameraIndexCode"],
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"name": item["name"],
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"parent_id": parent_id,
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"is_leaf": True, # 摄像头是叶子节点
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"stream_url": None
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}
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def get_children(parent_id):
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"""返回父节点下的直接子节点列表（从海康威视 API 获取）
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逻辑：
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1. 先调用 get_organization_list 获取子组织
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2. 如果返回 list 为空，则调用 get_final_list 获取摄像头（叶子节点）
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"""
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if parent_id is None:
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parent_id = ROOT_PARENT_INDEX_CODE
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try:
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# 先尝试获取子组织
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result = get_organization_list(parent_id)
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if result.get("code") != "0":
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print(f"海康威视 API 返回错误: {result.get('msg')}")
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return []
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items = result.get("data", {}).get("list", [])
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# 如果有子组织，返回组织节点
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if items:
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return [transform_org_node(item, parent_id) for item in items]
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# 如果没有子组织，尝试获取摄像头列表（叶子节点）
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print(f"组织 {parent_id} 无下级组织，尝试获取摄像头列表...")
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final_result = get_final_list(parent_id)
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if final_result.get("code") != "0":
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print(f"获取摄像头列表失败: {final_result.get('msg')}")
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return []
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camera_items = final_result.get("data", {}).get("list", [])
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print(f"获取到 {len(camera_items)} 个摄像头")
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return [transform_camera_node(item, parent_id) for item in camera_items]
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except Exception as e:
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print(f"调用海康威视 API 失败: {e}")
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return []
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def get_stream_url(node_id, stream_type=0):
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"""获取摄像头的视频流地址
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Args:
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node_id: 摄像头的 cameraIndexCode
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stream_type: 码流类型，0=主码流，1=子码流
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"""
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try:
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result = get_camera_preview_url(node_id, stream_type)
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if result.get("code") != "0":
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print(f"获取视频流地址失败: {result.get('msg')}")
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return None
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url = result.get("data", {}).get("url")
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return url
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except Exception as e:
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print(f"调用 get_camera_preview_url 失败: {e}")
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return None
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# ========== HTTP 处理器 ==========
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class APIHandler(SimpleHTTPRequestHandler):
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# 设置超时
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timeout = 30
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# MIME 类型映射
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MIME_TYPES = {
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'.html': 'text/html; charset=utf-8',
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'.css': 'text/css',
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'.js': 'application/javascript',
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'.json': 'application/json',
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'.png': 'image/png',
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'.jpg': 'image/jpeg',
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'.jpeg': 'image/jpeg',
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'.gif': 'image/gif',
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'.svg': 'image/svg+xml',
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'.ico': 'image/x-icon',
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'.mp3': 'audio/mpeg',
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'.wav': 'audio/wav',
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'.mp4': 'video/mp4',
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'.txt': 'text/plain; charset=utf-8',
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}
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def log_message(self, format, *args):
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print(f"[{self.log_date_time_string()}] {self.address_string()} - {format % args}")
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def send_json_response(self, data, status=200):
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"""统一返回 JSON 格式"""
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self.send_response(status)
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self.send_header('Content-type', 'application/json')
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self.send_header('Access-Control-Allow-Origin', '*')
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self.end_headers()
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self.wfile.write(json.dumps(data, ensure_ascii=False).encode('utf-8'))
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def send_error_json(self, message, status=400):
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"""返回错误 JSON"""
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self.send_json_response({"error": message}, status)
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def do_GET(self):
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try:
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parsed_path = urllib.parse.urlparse(self.path)
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path = parsed_path.path
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query = parsed_path.query
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# 新 API 路由 (RESTful)
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if path.startswith('/api/roots'):
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# GET /api/roots
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roots = get_children(None)
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self.send_json_response(roots)
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return
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elif path.startswith('/api/children/'):
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# GET /api/children/21020000
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node_id = path.split('/')[-1]
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if not node_id:
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self.send_error_json("Invalid node id", 400)
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return
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children = get_children(node_id)
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self.send_json_response(children)
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return
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elif path.startswith('/api/stream/'):
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# GET /api/stream/21020000?stream_type=0
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node_id = path.split('/')[-1]
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if not node_id:
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self.send_error_json("Invalid node id", 400)
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return
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# 解析 stream_type 参数
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params = urllib.parse.parse_qs(query)
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stream_type = int(params.get('stream_type', ['0'])[0])
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url = get_stream_url(node_id, stream_type)
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if url is None:
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self.send_error_json("Stream not found or node is not a leaf", 404)
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return
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# 返回完整信息
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self.send_json_response({
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"cameraIndexCode": node_id,
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"url": url,
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"stream_type": stream_type
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})
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return
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# 静态文件服务（与原逻辑一致）
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if path == '/' or path == '/index.html':
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self.serve_file('index.html', query='api=1')
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return
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else:
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filename = path.lstrip('/')
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if os.path.exists(filename):
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self.serve_static_file(filename)
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else:
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self.send_error(404, 'Not Found')
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return
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except Exception as e:
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print(f"Error handling request: {e}")
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self.send_error(500, 'Internal Server Error')
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def serve_file(self, filename, query=None):
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"""与原代码相同的文件服务（保留原逻辑）"""
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try:
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file_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), filename)
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if os.path.exists(file_path):
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self.send_response(200)
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self.send_header('Content-type', 'text/html; charset=utf-8')
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self.end_headers()
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with open(file_path, 'rb') as f:
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content = f.read()
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if query:
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try:
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content = content.decode('utf-8')
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# 替换原有 js 中的 apiParam 赋值语句（兼容旧前端）
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content = content.replace(
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"const apiParam = urlParams.get('api') || '1';",
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f"const apiParam = '{query.split('=')[1]}';"
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)
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content = content.encode('utf-8')
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except Exception as e:
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print(f"Error modifying HTML content: {e}")
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self.wfile.write(content)
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else:
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self.send_error(404, f'{filename} not found')
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except Exception as e:
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print(f"Error serving file: {e}")
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raise
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def serve_static_file(self, filename):
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"""与原代码相同的静态文件服务"""
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try:
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ext = os.path.splitext(filename)[1].lower()
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content_type = self.MIME_TYPES.get(ext, 'application/octet-stream')
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self.send_response(200)
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self.send_header('Content-type', content_type)
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self.send_header('Access-Control-Allow-Origin', '*')
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self.end_headers()
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with open(filename, 'rb') as f:
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self.wfile.write(f.read())
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except Exception as e:
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print(f"Error serving static file: {e}")
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self.send_error(500, 'Internal Server Error')
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def check_port_available(port):
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"""检查端口是否可用"""
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
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try:
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s.bind(('', port))
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return True
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except socket.error:
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return False
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def run():
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port = 18369
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if not check_port_available(port):
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print(f"错误: 端口 {port} 已被占用")
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return
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server_address = ('', port)
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httpd = ThreadingHTTPServer(server_address, APIHandler)
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print(f'Server running on http://localhost:{port}')
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print('API endpoints:')
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print(' GET /api/roots - 获取所有根节点')
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print(' GET /api/children/<id> - 获取指定节点的子节点（自动判断组织/摄像头）')
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print(' GET /api/stream/<id> - 获取视频流地址')
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print('静态文件服务: 访问 / 或 /index.html')
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print('按 Ctrl+C 停止服务器')
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try:
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httpd.serve_forever()
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except KeyboardInterrupt:
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print('\n服务器已停止')
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httpd.server_close()
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if __name__ == '__main__':
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run() |