From 8c08188c88af23111d729d54d3639074659be21a Mon Sep 17 00:00:00 2001 From: n07070 Date: Sat, 12 Mar 2022 04:28:17 +0100 Subject: [PATCH] Add web routes, web class --- src/main.py | 97 +++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 72 insertions(+), 25 deletions(-) diff --git a/src/main.py b/src/main.py index fdf6f6c..a1d3c9b 100644 --- a/src/main.py +++ b/src/main.py @@ -7,11 +7,16 @@ # Then we build the web interface, using the simple Jinja2 templating. # Following are the librairies we import, -from flask import Flask, request # Used for the web framework -from printer import Printer # The wrapper for the printer class -import toml # Used for the config file parsing -import pprint -import time +from flask import Flask, request, render_template, flash, abort, redirect, url_for, make_response, jsonify # Used for the web framework +from flask_limiter import Limiter +from flask_limiter.util import get_remote_address +from printer import Printer # The wrapper for the printer class +from web import Web # Wrapper for the web routes and API +import toml # Used for the config file parsing +import pprint # To pretty print JSON +import time # To sleep +import os # For VARS from the shell. +# Variables # Load the configuration file try: @@ -25,7 +30,13 @@ except toml.TomlDecodeError: except Exception as e: print("Error while loading file : " + str(e)) -pprint.pprint(configuration_file) +# Define the USB connections here. +vendor_id = configuration_file["printer"]["vendor_id"] +device_id = configuration_file["printer"]["device_id"] + +# Output the config file +if os.getenv('LIPY_DEBUG') == True: + pprint.pprint(configuration_file) # We define the app module used by Flask app = Flask(__name__) @@ -34,16 +45,24 @@ app.secret_key = configuration_file["secrets"]["flask_secret_key"] # Printer connection # Uses the class defined in the printer.py file - -# Define the USB connections here. -vendor_id = configuration_file["printer"]["vendor_id"] -device_id = configuration_file["printer"]["device_id"] - printer = Printer(app,0x04b8, 0x0e28) printer.init_printer() +# Web routes +web = Web(app, printer) +limiter = Limiter( + app, + key_func=get_remote_address, + default_limits=["200 per day", "50 per hour"] +) + +@app.route('/') +@limiter.limit("1/second", override_defaults=False) +def index(): + return render_template('index.html') + # API routes # The api has the following methods # api/print/{sms,img,letter,qr,barcode} @@ -51,22 +70,50 @@ printer.init_printer() # api/status/{paper,ping,stats} # If you just call the api route, you get a help back. -@app.route('/') -def index(): - return "Welcome ! Please type your message in the URL bar in such way : /api/print/sms?txt=" - - @app.route('/api') -def api_help(): - return "Welcome to the API's help page" - @app.route('/api/print') +@limiter.limit("1/second", override_defaults=False) def api_index(): - return "Welcome to the printing software's API. Please see the index page to get started." + return render_template("api.html") -@app.route('/api/print/sms', methods=['GET']) + +@app.route('/api/print/sms', methods=['POST']) +@limiter.limit("2/minute", override_defaults=False) def api_print_sms(): - texte = request.args.get("txt",type=str) - app.logger.debug("Printing : " + texte) - time.sleep(10) - return printer.print_sms(texte) + try: + txt = request.form["txt"] + sign = request.form["signature"] + except Exception as e: + flash(e) + redirect(url_for('index')) + + flash(web.print_sms(txt,sign)) + return redirect(url_for('index')) + +@app.route('/api/print/image', methods=['POST']) +@limiter.limit("2/minute", override_defaults=False) +def api_print_image(): + flash(web.print_image()) + return "print image" + +@app.route('/login') +@limiter.limit("1/second", override_defaults=False) +def login_page(): + # web.login(username,password) + return render_template("index.html") + +@app.route('/logout') +@limiter.limit("1/second", override_defaults=False) +def logout_page(): + # web.logout(username, password) + return render_template("index.html") + +@app.errorhandler(429) +def ratelimit_handler(e): + flash("Rate limit reached, please slow down :) ( Currently at "+ e.description + ")", 'error') + return render_template('index.html') + +@app.route("/ping") +@limiter.exempt +def ping(): + return "PONG"