Add TCP/UDP server-client applications

03_networking/gitea_api.py

@@ -0,0 +1,18 @@
+import requests
+
+GITEA_URL = "https://git.vyatsu.ru"  # Замените на ваш URL
+TOKEN = "02bffb2de3b71f8c3132dad0d22ea2de8d4b6333"  # Сгенерировать в Settings -> Applications
+HEADERS = {"Authorization": f"token {TOKEN}", "Accept": "application/json"}
+
+# 1. Информация о пользователе
+me = requests.get(f"{GITEA_URL}/api/v1/user", headers=HEADERS)
+print(f"👤 User: {me.json()['login']}")
+
+# 2. Создание Issue
+payload = {
+    "title": "Тестовый Issue из практики",
+    "body": "Создано автоматически через API Python."
+    }
+repo = "stud182932/main"  # Замените на owner/repo
+res = requests.post(f"{GITEA_URL}/api/v1/repos/{repo}/issues", json=payload, headers=HEADERS)
+print(f"✅ Issue создан: {res.json().get('html_url', res.text)}")

03_networking/http_raw.py

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+import socket
+
+HOST, PORT = "vyatsu.ru", 80
+
+with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+    s.settimeout(10)
+    s.connect((HOST, PORT))
+    
+    # Формируем сырой HTTP-запрос
+    request = "GET / HTTP/1.1\r\nHost: vyatsu.ru\r\nConnection: close\r\n\r\n"
+    s.sendall(request.encode('utf-8'))
+    
+    response = b""
+    while True:
+        chunk = s.recv(4096)
+        if not chunk:
+            break
+        response += chunk
+        
+    print("📡 Сырой ответ сервера (первые 800 символов):")
+    print(response.decode('utf-8', errors='ignore')[:800])

03_networking/tcp_client.py

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+import socket
+
+def main():
+    HOST = '127.0.0.1'
+    PORT = 65432
+    
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.connect((HOST, PORT))
+        print("Подключено к серверу")
+        
+        messages = ["Привет!", "Как дела?", "exit"]
+        for msg in messages:
+            print(f"Отправка: {msg}")
+            s.sendall(msg.encode('utf-8'))
+            
+            if msg.lower() == 'exit':
+                break
+            
+            response = s.recv(1024)
+            print(f"Ответ: {response.decode()}")
+
+if __name__ == '__main__':
+    main()

03_networking/tcp_server.py

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+import socket
+
+def main():
+    HOST = '127.0.0.1'
+    PORT = 65432
+    
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        s.bind((HOST, PORT))
+        s.listen(1)
+        print(f"TCP сервер запущен на {HOST}:{PORT}")
+        
+        conn, addr = s.accept()
+        with conn:
+            print(f"Подключен клиент: {addr}")
+            while True:
+                data = conn.recv(1024)
+                if not data:
+                    break
+                
+                message = data.decode('utf-8').strip()
+                print(f"Получено: {message}")
+                
+                if message.lower() == 'exit':
+                    print("Завершение работы...")
+                    break
+                
+                response = f"SERVER: {message.upper()}"
+                conn.sendall(response.encode('utf-8'))
+
+if __name__ == '__main__':
+    main()

03_networking/udp_client.py

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+import socket
+
+def main():
+    HOST = '127.0.0.1'
+    PORT = 10001
+    
+    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as s:
+        messages = ["Привет UDP!", "Тест", "exit"]
+        for msg in messages:
+            print(f"Отправка: {msg}")
+            s.sendto(msg.encode('utf-8'), (HOST, PORT))
+            
+            if msg.lower() == 'exit':
+                break
+            
+            data, _ = s.recvfrom(1024)
+            print(f"Ответ: {data.decode()}")
+
+if __name__ == '__main__':
+    main()

03_networking/udp_server.py

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+import socket
+
+def main():
+    HOST = '127.0.0.1'
+    PORT = 10001
+    
+    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as s:
+        s.bind((HOST, PORT))
+        print(f"UDP сервер запущен на {HOST}:{PORT}")
+        
+        while True:
+            data, addr = s.recvfrom(1024)
+            message = data.decode('utf-8').strip()
+            print(f"От {addr}: {message}")
+            
+            if message.lower() == 'exit':
+                break
+            
+            response = f"UDP: {message.upper()}"
+            s.sendto(response.encode('utf-8'), addr)
+
+if __name__ == '__main__':
+    main()