Laboratory work #3: TCP/UDP, HTTP requests, Gitea API

.gitignore

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+.venv/
+.env
+__pycache__/
+*.pyc
+.vs/
+.vscode/

README.md

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+# Laboratory work #3: Network connections in Python
+
+## Completed tasks
+
+1. **TCP client-server** (port 10000)
+2. **UDP client-server** (port 10001)
+3. **HTTP requests** (vyatsu.ru)
+4. **Gitea API** (repository creation)
+
+## How to run
+
+```bash
+# Activate virtual environment
+.venv\Scripts\activate
+
+# Run TCP
+py tcp_server.py
+py tcp_client.py
+
+# Run UDP
+py udp_server.py
+py udp_client.py
+
+# HTTP requests
+py http_socket.py
+py http_requests.py
+
+# Gitea API (add token to .env first)
+py gitea_api.py
+
+## Author
+Îí÷óðîâà Ïîëèíà Àëåêñååâíà, ÈÍÁá-2301-02-00

gitea_api.py

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+import os
+import requests
+from dotenv import load_dotenv
+
+load_dotenv()
+
+TOKEN = os.getenv('GITEA_TOKEN')
+BASE_URL = os.getenv('GITEA_URL', 'https://git.vyatsu.ru')
+
+def get_user_info():
+    headers = {"Authorization": f"token {TOKEN}"}
+    response = requests.get(f"{BASE_URL}/api/v1/user", headers=headers)
+    if response.status_code == 200:
+        user = response.json()
+        print(f"User: {user.get('login')}")
+        print(f"Email: {user.get('email')}")
+        return user
+    else:
+        print(f"Error: {response.status_code}")
+        return None
+
+def create_repository(repo_name):
+    headers = {
+        "Authorization": f"token {TOKEN}",
+        "Content-Type": "application/json"
+    }
+    data = {
+        "name": repo_name,
+        "description": "Laboratory work #3: Network programming",
+        "private": False
+    }
+    response = requests.post(f"{BASE_URL}/api/v1/user/repos", headers=headers, json=data)
+    if response.status_code == 201:
+        repo = response.json()
+        print(f"Repository created: {repo.get('html_url')}")
+        return repo
+    else:
+        print(f"Error: {response.status_code}")
+        return None
+
+if __name__ == "__main__":
+    user = get_user_info()
+    if user:
+        create_repository(f"lab3-{user.get('login')}")

http_requests.py

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+import requests
+
+response = requests.get("http://vyatsu.ru")
+print(response.text[:500])

http_socket.py

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+import socket
+
+client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+client.connect(('vyatsu.ru', 80))
+request = "GET / HTTP/1.1\r\nHost: vyatsu.ru\r\n\r\n"
+client.sendall(request.encode())
+response = client.recv(4096)
+print(response.decode())
+client.close()

tcp_client.py

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+import socket
+
+client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+client.connect(('127.0.0.1', 10000))
+client.sendall(b'hello server')
+data = client.recv(1024)
+print(f"Server response: {data.decode()}")
+client.close()

tcp_server.py

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+import socket
+
+server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+server.bind(("0.0.0.0", 10000))
+server.listen(1)
+print("TCP server started on port 10000")
+
+while True:
+    conn, addr = server.accept()
+    print(f"Connection from {addr}")
+    data = conn.recv(1024)
+    if not data:
+        break
+    conn.sendall(data.upper())
+    conn.close()
+    if data.upper() == b'EXIT':
+        break

udp_client.py

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+import socket
+
+client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+client.sendto(b'hello server', ('127.0.0.1', 10001))
+data, _ = client.recvfrom(1024)
+print(f"Server response: {data.decode()}")
+client.close()

udp_server.py

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+import socket
+
+server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+server.bind(('0.0.0.0', 10001))
+print("UDP server started on port 10001")
+
+while True:
+    data, addr = server.recvfrom(1024)
+    print(f"Message from {addr}: {data.decode()}")
+    server.sendto(data.upper(), addr)