From d811b20d8f157910e61ce66623c17215e0b4f730 Mon Sep 17 00:00:00 2001
From: stud204002 <stud204002@vyatsu.ru>
Date: Thu, 16 Apr 2026 23:11:14 +0300
Subject: [PATCH] Laboratory work #3: TCP/UDP, HTTP requests, Gitea API

---
 .gitignore       |  6 ++++++
 README.md        | 32 ++++++++++++++++++++++++++++++++
 gitea_api.py     | 44 ++++++++++++++++++++++++++++++++++++++++++++
 http_requests.py |  4 ++++
 http_socket.py   |  9 +++++++++
 tcp_client.py    |  8 ++++++++
 tcp_server.py    | 17 +++++++++++++++++
 udp_client.py    |  7 +++++++
 udp_server.py    | 10 ++++++++++
 9 files changed, 137 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100644 gitea_api.py
 create mode 100644 http_requests.py
 create mode 100644 http_socket.py
 create mode 100644 tcp_client.py
 create mode 100644 tcp_server.py
 create mode 100644 udp_client.py
 create mode 100644 udp_server.py

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2083e7f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+.venv/
+.env
+__pycache__/
+*.pyc
+.vs/
+.vscode/
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..ce7dddc
--- /dev/null
+++ b/README.md
@@ -0,0 +1,32 @@
+# 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
+Ончурова Полина Алексеевна, ИНБб-2301-02-00
\ No newline at end of file
diff --git a/gitea_api.py b/gitea_api.py
new file mode 100644
index 0000000..4e3a998
--- /dev/null
+++ b/gitea_api.py
@@ -0,0 +1,44 @@
+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')}")
\ No newline at end of file
diff --git a/http_requests.py b/http_requests.py
new file mode 100644
index 0000000..83588ae
--- /dev/null
+++ b/http_requests.py
@@ -0,0 +1,4 @@
+import requests
+
+response = requests.get("http://vyatsu.ru")
+print(response.text[:500])
\ No newline at end of file
diff --git a/http_socket.py b/http_socket.py
new file mode 100644
index 0000000..4c1fa7e
--- /dev/null
+++ b/http_socket.py
@@ -0,0 +1,9 @@
+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()
\ No newline at end of file
diff --git a/tcp_client.py b/tcp_client.py
new file mode 100644
index 0000000..6ab5f0a
--- /dev/null
+++ b/tcp_client.py
@@ -0,0 +1,8 @@
+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()
\ No newline at end of file
diff --git a/tcp_server.py b/tcp_server.py
new file mode 100644
index 0000000..4cf6c16
--- /dev/null
+++ b/tcp_server.py
@@ -0,0 +1,17 @@
+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
\ No newline at end of file
diff --git a/udp_client.py b/udp_client.py
new file mode 100644
index 0000000..0f440f4
--- /dev/null
+++ b/udp_client.py
@@ -0,0 +1,7 @@
+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()
\ No newline at end of file
diff --git a/udp_server.py b/udp_server.py
new file mode 100644
index 0000000..d39999c
--- /dev/null
+++ b/udp_server.py
@@ -0,0 +1,10 @@
+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)
\ No newline at end of file