Update scripts/health_checker.py

scripts/health_checker.py

@@ -1,16 +1,18 @@
 #!/usr/bin/env python3
 """
-Health Checker - Simple URL health checking for IPTV channels
+Health Checker - Simple health checking without external dependencies
 """
 
 import logging
-import requests
+import urllib.request
+import urllib.error
+import socket
+import time
 import concurrent.futures
 from typing import Dict, List, Optional
-import time
 
 class HealthChecker:
-    """Simple health checker for IPTV channel URLs."""
+    """Simple health checker using only standard library."""
     
     def __init__(self, config):
         self.config = config
@@ -18,29 +20,52 @@ class HealthChecker:
         self.timeout = config.settings.get('health_check_timeout', 5)
         self.max_workers = config.settings.get('max_workers', 4)
         
+        # Set default socket timeout
+        socket.setdefaulttimeout(self.timeout)
+        
     def check_single_url(self, url: str) -> Dict:
-        """Check a single URL for accessibility."""
+        """Check a single URL for accessibility using urllib."""
         start_time = time.time()
         
         try:
-            response = requests.head(
-                url, 
-                timeout=self.timeout,
-                allow_redirects=True,
+            # Create request with proper headers
+            req = urllib.request.Request(
+                url,
                 headers={'User-Agent': 'IPTV-Health-Checker/1.0'}
             )
             
-            response_time = time.time() - start_time
-            
+            # Try to open the URL
+            with urllib.request.urlopen(req, timeout=self.timeout) as response:
+                response_time = time.time() - start_time
+                status_code = response.getcode()
+                
+                return {
+                    'url': url,
+                    'status': 'healthy' if status_code < 400 else 'unhealthy',
+                    'status_code': status_code,
+                    'response_time': round(response_time, 2),
+                    'error': None
+                }
+                
+        except urllib.error.HTTPError as e:
             return {
                 'url': url,
-                'status': 'healthy' if response.status_code < 400 else 'unhealthy',
-                'status_code': response.status_code,
-                'response_time': round(response_time, 2),
-                'error': None
+                'status': 'unhealthy',
+                'status_code': e.code,
+                'response_time': time.time() - start_time,
+                'error': f'HTTP {e.code}: {e.reason}'
             }
             
-        except requests.exceptions.Timeout:
+        except urllib.error.URLError as e:
+            return {
+                'url': url,
+                'status': 'unreachable',
+                'status_code': None,
+                'response_time': time.time() - start_time,
+                'error': f'URL Error: {e.reason}'
+            }
+            
+        except socket.timeout:
             return {
                 'url': url,
                 'status': 'timeout',
@@ -49,15 +74,6 @@ class HealthChecker:
                 'error': 'Request timeout'
             }
             
-        except requests.exceptions.ConnectionError:
-            return {
-                'url': url,
-                'status': 'unreachable',
-                'status_code': None,
-                'response_time': time.time() - start_time,
-                'error': 'Connection error'
-            }
-            
         except Exception as e:
             return {
                 'url': url,
@@ -90,29 +106,68 @@ class HealthChecker:
         """Perform batch health check on multiple channels."""
         if not self.config.settings.get('enable_health_check', False):
             self.logger.info("Health checking is disabled")
-            return {'enabled': False, 'results': []}
+            return {
+                'enabled': False,
+                'results': [],
+                'summary': {
+                    'total': len(channels),
+                    'healthy': 0,
+                    'health_percentage': 0,
+                    'total_check_time': 0
+                }
+            }
         
         self.logger.info(f"Starting health check for {len(channels)} channels...")
         
         start_time = time.time()
         results = []
         
-        # Use ThreadPoolExecutor for concurrent checks
-        with concurrent.futures.ThreadPoolExecutor(max_workers=self.max_workers) as executor:
-            # Submit all health check tasks
-            future_to_channel = {
-                executor.submit(self.check_channel_health, channel): channel 
-                for channel in channels
-            }
-            
-            # Collect results as they complete
-            for future in concurrent.futures.as_completed(future_to_channel):
+        # Limit concurrent checks to avoid overwhelming servers
+        max_workers = min(self.max_workers, len(channels))
+        
+        if max_workers > 1:
+            # Use ThreadPoolExecutor for concurrent checks
+            try:
+                with concurrent.futures.ThreadPoolExecutor(max_workers=max_workers) as executor:
+                    # Submit all health check tasks
+                    future_to_channel = {
+                        executor.submit(self.check_channel_health, channel): channel 
+                        for channel in channels
+                    }
+                    
+                    # Collect results as they complete
+                    for future in concurrent.futures.as_completed(future_to_channel, timeout=60):
+                        try:
+                            result = future.result(timeout=10)
+                            results.append(result)
+                        except Exception as e:
+                            channel = future_to_channel[future]
+                            self.logger.warning(f"Health check failed for {channel.get('Stream name', 'Unknown')}: {e}")
+                            results.append({
+                                'channel_name': channel.get('Stream name', 'Unknown'),
+                                'url': channel.get('Stream URL', ''),
+                                'status': 'error',
+                                'status_code': None,
+                                'response_time': 0,
+                                'error': str(e)
+                            })
+            except Exception as e:
+                self.logger.error(f"Concurrent health check failed: {e}")
+                # Fall back to sequential processing
+                for channel in channels:
+                    try:
+                        result = self.check_channel_health(channel)
+                        results.append(result)
+                    except Exception as channel_error:
+                        self.logger.warning(f"Channel check failed: {channel_error}")
+        else:
+            # Sequential processing for single worker
+            for channel in channels:
                 try:
-                    result = future.result()
+                    result = self.check_channel_health(channel)
                     results.append(result)
                 except Exception as e:
-                    channel = future_to_channel[future]
-                    self.logger.error(f"Health check failed for {channel.get('Stream name', 'Unknown')}: {e}")
+                    self.logger.warning(f"Health check failed for {channel.get('Stream name', 'Unknown')}: {e}")
                     results.append({
                         'channel_name': channel.get('Stream name', 'Unknown'),
                         'url': channel.get('Stream URL', ''),
@@ -216,33 +271,4 @@ class HealthChecker:
             
         except Exception as e:
             self.logger.error(f"Could not save health report: {e}")
-            return None
-
-
-# Simple fallback for when requests is not available
-class SimpleHealthChecker:
-    """Fallback health checker that doesn't require external dependencies."""
-    
-    def __init__(self, config):
-        self.config = config
-        self.logger = logging.getLogger(__name__)
-    
-    def batch_health_check(self, channels: List[Dict]) -> Dict:
-        """Fallback that skips health checking."""
-        self.logger.info("Health checking disabled (requests library not available)")
-        return {
-            'enabled': False,
-            'results': [],
-            'summary': {'total': len(channels), 'healthy': 0, 'health_percentage': 0},
-            'total_time': 0
-        }
-
-
-# Try to use the full health checker, fall back to simple one if requests isn't available
-try:
-    import requests
-    # If requests is available, use the full HealthChecker
-except ImportError:
-    # If requests is not available, use the fallback
-    class HealthChecker(SimpleHealthChecker):
-        pass
+            return None