server-rx : PDF receiver, printing via Linux lp-tool

server-rx/gunicorn.py

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+import json
+
+with open("server-rx.json", 'r', encoding = "utf-8") as file:
+    server_data = json.load(file)
+
+bind = f"{server_data['ip']}:{server_data['port']}"
+workers = 2
+timeout = 120

server-rx/requirements.txt

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+blinker==1.9.0
+click==8.1.8
+Flask==3.1.0
+gunicorn==23.0.0
+itsdangerous==2.2.0
+Jinja2==3.1.5
+MarkupSafe==3.0.2
+packaging==24.2
+Werkzeug==3.1.3

server-rx/server-rx.json

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+{
+    "ip": "127.0.0.1",
+    "port": 33333,
+    "secret": "PROJECT_BY_GAZAKBAYEV_AHMET"
+}

server-rx/wsgi_back.py

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+import os
+import json
+
+from flask import Flask, request
+
+app = Flask(__name__)
+SECRET = None
+
+with open("server-rx.json", 'r', encoding = "utf-8") as file:
+    server_data = json.load(file)
+    SECRET = server_data['secret']
+
+def go_to_print(file_path, samples):
+    os.system(f"lp -n {samples} {file_path}")
+
+@app.route('/printfile', methods=['POST'])
+def print_file():
+    if 'file' not in request.files:
+        return 'Файл не был предоставлен.', 400
+    if 'secret-key' not in request.form:
+        return 'Секретный ключ не был предоставлен.', 400
+    if request.form['secret-key'] != SECRET:
+        return 'Авторизация не удалась.', 400
+    file = request.files['file']
+    filename = "files/" + file.filename
+    with open(filename, 'wb') as f:
+        f.write(file.read())
+    samples = 1
+    if b'samples' in request.data:
+        samples = request.data[b'samples']
+    try:
+        go_to_print(filename, samples)
+        return 'Файл отправлен на печать.', 200
+    except Exception as e:
+        return f'Ошибка при печати файла: {str(e)}.', 500
+    finally:
+        return 'OK', 200