Merge pull request 'Обновить server-tx/app/config.py' (#4) from ahmet-patch-1 into main

Reviewed-on: #4

README.md

@@ -0,0 +1,104 @@
+# ICPC-WEBPRINT
+
+This platform helps contest participants to print their code using no drivers, only web application in any browser. Supports authorization, printing PDF for administrators and teachers.
+
+Platform was already used on some events, like "The FPMI Cup : February, 2025" and "MIPT Open Programming Championship : April, 2025".
+
+## Instalation
+### Environment and Service
+Both RX and TX servers have the same way to install dependencies. First, be sure to have venv globally installed on your system:
+
+```bash
+apt install python3-venv
+# or
+python3 -m pip install venv
+```
+
+After that create virtual environment:
+
+```
+cd print-tx # and then print-rx
+python3 -m venv .venv
+```
+
+Enter environment and install dependencies from `requirements.txt`:
+
+```
+source .venv/bin/activate
+python3 -m pip install -r requirements.txt
+```
+Great! Now you have working system. You can start your project either running 
+```
+python3 -m gunicorn wsgi_back:app -c gunicorn.py
+```
+in venv, or creating services on your Linux. Template could be found in `example.serivce` file. After that you can start your web app with running:
+```
+systemctl start example.service
+```
+
+### Setting Secrets
+
+Change secret code, that is used to access RX server from TX in `server-tx.json` and `server-rx.json`.
+Change salt and session secret key in `server-tx/app/config.py`:
+```
+_SALT = '$2b$12$DE09JKsqy6Ii/zAxEAA5n.' #edit
+_SECRET_SESSION_KEY = "GAZAKBAYEV-AHMET-PROJECT" #edit
+```
+You can also to set super admin user (it can add and remove others):
+```
+_SUPER_ADMINS = ( #edit
+    "god"
+)
+```
+
+Accounts with login:password like "god:god" will be checked and created if not exist, when application start.
+
+### Setting ports
+
+You can set port of TX part in file `gunicorn.py`, and RX part in config file `server-rx.json`. Using TX interface, in admin panel, you can configure RX server and get `server-rx.json` to load it.
+
+### Setting default printer
+
+Learn more about `lp` service in Linux ([Wiki](https://ru.wikipedia.org/wiki/Lp)).
+
+## Features
+
+- Four groups: Super Admin, Admin (create and remove users, set configuration), Tutor (print PDF and code), Team Member (default, print only code)
+- Print code & PDF
+- Create & Delete users
+- Statistic of printed pages & last printing time of member
+- Setting RX server using UI
+- Setting TX configuration: PDF Watermark and limits.
+
+## Setting user group
+
+Groups are just team names! Use `$root` for Admins, `$tutor$` for Teachers and other names for members.
+
+## Interface
+
+### Team Member
+![Team Member](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/member_view.png&fileId=62728&x=2880&y=1800&a=true&etag=112840f341b1c0419ddb384ee1c54d9c)
+
+![Limit Example](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/limit_realization.png&fileId=62726&x=2880&y=1800&a=true&etag=b2a38e2f507cce30f4ece5a1d2d203e5)
+
+### Tutor
+![Tutor](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/tutor_view.png&fileId=62729&x=2880&y=1800&a=true&etag=d8c90831ce28b0fa1056efc9bdb4e940)
+
+### Админ Панель
+![View1](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/admin_panel_view1.png&fileId=62724&x=2880&y=1800&a=true&etag=21a34169474060c299a3e4c74c5b6076)
+
+![View2](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/admin_panel_view2.png&fileId=62722&x=2880&y=1800&a=true&etag=48ba6f4ff8f0b1ce9679a2ec06bb1391)
+
+![View3](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/admin_panel_view3.png&fileId=62720&x=2880&y=1800&a=true&etag=3e47f48910e457564c8ae692fca12506)
+
+![View4](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/admin_panel_view4.png&fileId=62721&x=2880&y=1800&a=true&etag=58a0d96be70a9af936510a24682dea6c)
+
+### Создание и Редактирование пользователя
+
+![Create](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/create_user.png&fileId=62723&x=2880&y=1800&a=true&etag=d29264a65fc01ac2aafa06fdd0139040)
+
+![Create Result](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/create_user_created.png&fileId=62725&x=2880&y=1800&a=true&etag=af5b7e8672570468acbd81ba6a675e3f)
+
+![Update](https://cloud.gazakbayev.net/index.php/apps/files_sharing/publicpreview/gqzmo9S8KFGcQLi?file=/edit_user.png&fileId=62727&x=2880&y=1800&a=true&etag=551dcadc3402e7555a7d701269cd0b94)
+
+Просмотреть данную галерею можно на [NextCloud](https://cloud.gazakbayev.net/index.php/s/gqzmo9S8KFGcQLi?dir=/) автора.

example.service

@@ -0,0 +1,20 @@
+#
+# NOTICE! Replace PATH_TO_SCRIPT with required directory!
+# Paste content of this file into /etc/systemd/system/YOUR_NAME.service
+#
+
+# Suggested names for service: print-rx.service & print-tx.server
+# REMEMBER to create virtual environment before using script (read README.md) 
+
+[Unit]
+Description=Print Server TX/RX server script.
+After=network.target
+
+[Service]
+User=www-data
+Group=www-data
+WorkingDirectory=PATH_TO_SCRIPT
+ExecStart=PATH_TO_SCRIPT/.venv/bin/gunicorn wsgi_back:app -c gunicorn.py
+
+[Install]
+WantedBy=multi-user.target

server-rx/gunicorn.py

@@ -0,0 +1,8 @@
+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

@@ -0,0 +1,9 @@
+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

@@ -0,0 +1,5 @@
+{
+    "ip": "127.0.0.1",
+    "port": 33333,
+    "secret": "PROJECT_BY_GAZAKBAYEV_AHMET"
+}

server-rx/wsgi_back.py

@@ -0,0 +1,37 @@
+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

server-tx/app/__init__.py

@@ -29,6 +29,8 @@ def get_app():
     from app._tools.database import DataManager
     from app._tools.database import SessionManager
     DataManager.init_table()
+    DataManager.check_admins()
     SessionManager.init_table()
+    
 
     return app

server-tx/app/_tools/database.py

@@ -4,12 +4,15 @@ import json
 
 from app._tools.models.user import User
 from app._tools.models.session import Session
+from app._tools import passhash as Hash
 
 from app.config import _USER_DATABASE as U_DB_PATH
 from app.config import _TOKEN_DATABASE as T_DB_PATH
 from app.config import _SERVER_CONFIG as S_CFG_PATH
 from app.config import _SCHEMA_USERS as SCHEMA_USERS
 from app.config import _SCHEMA_TOKENS as SCHEMA_TOKENS
+from app.config import _SUPER_ADMINS as SUPER_ADMINS
+from app.config import _SALT as SALT
 
 class ConnectManager:
     def __init__(self, db_file : str):
@@ -96,6 +99,16 @@ class DataManager:
         c_man = ConnectManager(U_DB_PATH)
         c_man.execute(SCHEMA_USERS, close_connection = False)
         c_man.execute("VACUUM;")
+    def check_admins():
+        for k in SUPER_ADMINS:
+            if DataManager.get_user_by_name(k) == None:
+                DataManager.add_user(
+                    k,
+                    "$root$",
+                    "Super Admin",
+                    Hash.hashPassword(k, SALT)
+                )
+                print(f"Create super admin {k} with password {k}")
     def get_user_by_name(username : str) -> User:
         c_man = ConnectManager(U_DB_PATH)
         data = c_man.execute(

server-tx/app/config.py

@@ -1,42 +1,42 @@
-
+#
-#
+#   Web-site platform settings
-#   Web-site platform settings
+#   It's better to edit only #edit fields! 
-#   It's better to edit only #edit fields! 
+#
-#
+
-
+_USER_DATABASE = "databases/users.db" #default
-_USER_DATABASE = "databases/users.db" #default
+_TOKEN_DATABASE = "databases/tokens.db" #default
-_TOKEN_DATABASE = "databases/tokens.db" #default
+_SERVER_CONFIG = "server-tx.json" #default
-_SERVER_CONFIG = "server-tx.json" #default
+_SALT = '$2b$12$DE09JKsqy6Ii/zAxEAA5n.' #edit
-_SALT = '$2b$12$DE09JKsqy6Ii/zAxEAA5n.' #edit
+_SECRET_SESSION_KEY = "GAZAKBAYEV-AHMET-PROJECT" #edit
-_SECRET_SESSION_KEY = "fpmi_cup_event_2025_by_MMCFPMI_developed_by_gallahad_ru_Welcomeee!!!" #edit
+_SUPER_ADMINS = ( #edit
-_SUPER_ADMINS = ( #edit
+    "god",
-    "god"
+    "admin"
-)
+)
-
+
-#
+#
-#   !!! WARNING !!!
+#   !!! WARNING !!!
-#   Please, don't edit this
+#   Please, don't edit this
-#   w/o understanding!
+#   w/o understanding!
-#
+#
-
+
-_SCHEMA_TOKENS = """
+_SCHEMA_TOKENS = """
-CREATE TABLE IF NOT EXISTS tokens (
+CREATE TABLE IF NOT EXISTS tokens (
-    token        TEXT,
+    token        TEXT,
-    user_id      INTEGER,
+    user_id      INTEGER,
-    expires      INTEGER
+    expires      INTEGER
-);
+);
-"""
+"""
-_SCHEMA_USERS = """
+_SCHEMA_USERS = """
-CREATE TABLE IF NOT EXISTS users (
+CREATE TABLE IF NOT EXISTS users (
-    id           INTEGER PRIMARY KEY
+    id           INTEGER PRIMARY KEY
-                         UNIQUE
+                         UNIQUE
-                         NOT NULL,
+                         NOT NULL,
-    username     TEXT,
+    username     TEXT,
-    team         TEXT,
+    team         TEXT,
-    loc          TEXT,
+    loc          TEXT,
-    passkey      TEXT,
+    passkey      TEXT,
-    reg_ts       INTEGER,
+    reg_ts       INTEGER,
-    lastprint_ts INTEGER DEFAULT (0),
+    lastprint_ts INTEGER DEFAULT (0),
-    pages        INTEGER DEFAULT (0) 
+    pages        INTEGER DEFAULT (0) 
-);
+);
-"""
+"""