Added the files of the project,

Added README.md

README.md

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+# Little Prynter
+---
+
+> Print out shit from the cloud.
+
+## About
+
+This project started when I got a Thermal Printer from a friend. I don't really know if you can do anything more, but I guess it's fun.
+
+
+## Installation
+
+To make this project work, you will need :
+- [A Thermal Printer]( https://www.adafruit.com/product/597 )
+- A Raspberry Pi
+- Some electric wires.
+
+Start by following the guide [here](https://learn.adafruit.com/networked-thermal-printer-using-cups-and-raspberry-pi) to install the CUPS software needed to print images. You can also get some information from [here](https://learn.adafruit.com/mini-thermal-receipt-printer) and [here](https://learn.adafruit.com/instant-camera-using-raspberry-pi-and-thermal-printer) if you're stuck.
+
+Then, setup the project :
+```
+git clone https://github.com/N07070/LittlePrynter
+cd LittlePrynter
+pip install -r requirements.txt
+```
+Now, edit `the users.json` and add a user. **Don't forget to remove the test user.**
+
+You can now start the web server with
+
+```
+export FLASK_APP=littleprynter.py
+flask run
+```
+
+Voilà !
+
+## More
+If you liked this project, feel free to support my work !
+
+BTC : `1GYEiFSS7vbZXxDjKQavdaGsAEtvGjNWqb`
+
+## Licence
+
+```
+LittlePrynter
+   Copyright (C) 2018  N07070
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+```

littleprynter.py

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+#!/usr/bin/python
+
+import os, random, sys, json
+from datetime import datetime
+from subprocess import call
+from Adafruit_Thermal import *
+from flask import Flask, render_template, jsonify, make_response, request, redirect, url_for, abort, session, flash
+from flask_limiter import Limiter
+from pprint import pprint
+from flask_limiter.util import get_remote_address
+
+
+
+app = Flask(__name__)
+app.secret_key = b'\x98>3nW[D\xa4\xd4\xd0K\xab?oM.`\x98'
+limiter = Limiter(
+    app,
+    key_func=get_remote_address,
+    default_limits=["200 per day", "50 per hour"]
+)
+
+# session['logged_in'] = False
+
+def error_handler_limiter():
+    flash("Trop de requêtes !!! CANNOT PRINT !!! HAAAAAAAAAA",'dark')
+    return redirect(url_for('display_index_page'))
+
+@app.errorhandler(418)
+def i_m_a_tea_pot(error):
+    return make_response('☕\n', 418)
+
+@app.route('/tea')
+def tea():
+    abort(418)
+
+@app.route('/')
+@limiter.exempt
+def display_index_page():
+    if session.get('logged_in'):
+        return render_template('index.html')
+    else:
+        return redirect(url_for('login'))
+
+@app.route('/login', methods=['POST','GET'])
+@limiter.limit("100 per minute", error_message=error_handler_limiter)
+def login():
+    if request.method == 'POST':
+        if not session.get('logged_in'):
+            if request.form['username'] and request.form['password']:
+                # Get the json
+                with open('users.json') as f:
+                    users_file = json.load(f)
+                for user in users_file["users"]:
+                    if users_file["users"][user] == request.form['password']:
+                        session['logged_in'] = True
+                        session['user'] = request.form['username']
+
+                if not session.get('logged_in'):
+                    flash('Mot de passe ou pseudo invalide.','danger')
+                    return redirect(url_for('login'))
+                else:
+                    return redirect(url_for('display_index_page'))
+            else:
+                flash('Incorrect logins')
+                return render_template('password.html')
+        else:
+            return render_template('password.html')
+    else:
+        return render_template('password.html')
+
+@app.route("/logout")
+def logout():
+    session['logged_in'] = False
+    flash('Tu est déconnecté', 'info')
+    return redirect(url_for('login'))
+
+@app.route('/print/image')
+@limiter.limit("5 per minute", error_message=error_handler_limiter)
+def print_image():
+    if session.get('logged_in'):
+        img = random.choice(os.listdir("static/images/")) #change dir name to whatever
+        call(["lp", "-o fit-to-page", "static/images/" + img])
+        # printer = Adafruit_Thermal('/dev/serial0', 19200, timeout=5)
+        # printer.begin()
+        # printer.feed(1)
+        # # printer.printImage(dickbutt, True)
+        # # printer.feed(2)
+        return redirect(url_for('display_index_page'))
+    else:
+        return redirect(url_for('login'))
+
+@app.route('/print/text', methods=['POST'])
+@limiter.limit("3: per minute", error_message=error_handler_limiter)
+def print_text():
+    if session.get('logged_in'):
+        if len(request.form['message']) < 200:
+            printer = Adafruit_Thermal('/dev/serial0', 19200, timeout=5)
+            printer.begin()
+            printer.justify('L')
+            printer.println(request.form['message'])
+            printer.setSize('S')
+            printer.println(">> " + datetime.now().strftime("%Y-%m-%d %H:%M:%S") + " " + session.get('user'))
+            printer.justify('C')
+            printer.println("------------------------------")
+            printer.feed(2)
+            printer.sleep()      # Tell printer to sleep
+            printer.wake()       # Call wake() before printing again, even if reset
+            printer.setDefault() # Restore printer to defaults
+            return redirect(url_for('display_index_page'))
+        else:
+            flash('Le text est trop long, 200 caractères au maximum stp !')
+            return redirect(url_for('display_index_page'))
+    else:
+        return redirect(url_for('login'))

pip-selfcheck.json

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+{"last_check":"2018-10-10T18:33:22Z","pypi_version":"18.1"}

requirements.txt

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+Adafruit-Thermal==1.1.0
+Click==7.0
+Flask==1.0.2
+Flask-Limiter==1.0.1
+itsdangerous==0.24
+Jinja2==2.10
+limits==1.3
+MarkupSafe==1.0
+Pillow==5.3.0
+pyserial==3.4
+six==1.11.0
+Unidecode==1.0.22
+Werkzeug==0.14.1

static/css/style.css

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+body {
+    margin-left: 20%;
+    margin-right: 20%;
+}
+
+button {
+    margin-top: 3em;
+}
+
+/*// Small devices (landscape phones, 576px and up)*/
+@media (min-width: 576px) {
+
+}
+
+/*// Medium devices (tablets, 768px and up)*/
+@media (min-width: 768px) {
+    margin-left: 0%;
+    margin-right: 0%;
+ }
+
+/*// Large devices (desktops, 992px and up)*/
+@media (min-width: 992px) {
+}
+
+ /*Extra large devices (large desktops, 1200px and up)*/
+@media (min-width: 1200px) {
+ }

templates/index.html

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+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8">
+        <title>LittlePrynter</title>
+        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
+        <link rel="stylesheet" href="{{ url_for('static',filename='css/style.css') }}">
+    </head>
+    <body class="container">
+        <div class="col-md-6 offset-md-3">
+            <h1 class="font-weight-bold">Little Prynter</h1>
+            <hr>
+            <br>
+            {% with messages = get_flashed_messages() %}
+              {% if messages %}
+                {% for message in messages %}
+                  <div class="alert alert-danger" role="alert">{{ message }}</div>
+                {% endfor %}
+              {% endif %}
+            {% endwith %}
+            <br>
+            <h3>Imprimer une image aléatoire</h3>
+            <a class="btn btn-primary btn-lg btn-block" href="/print/image"> Imprimer</a>
+            <hr>
+            <br>
+            <h3>Imprimer ton propre texte</h3>
+            <form class="form-group" action="/print/text" method="post">
+                <input class="form-control" type="text" name="message" placeholder="200 caractères ou moins " maxlength="200"><br>
+                <input class="btn btn-primary float-right" type="submit" value="Imprimer" name="imprimer">
+            </form>
+
+            <div id="pbar" style="display:none">
+                <img src="{{ url_for('static',filename='load.gif') }}" alt="loading wheel">
+            </div>
+            <br>
+            <br>
+            <footer><a href="/logout">Se déconnecter</a></footer>
+        </div>
+    </body>
+
+    <script>
+
+    function printImage() {
+        // Make an ajax call to the flask server on the /print/image route to trigger an image to be printer.
+        var xhttp = new XMLHttpRequest();
+         xhttp.onreadystatechange = function() {
+             var x = document.getElementById("pbar");
+                if (x.style.display === "none") {
+                    x.style.display = "inline";
+                }
+           if (this.readyState == 4 && this.status == 429) {
+               x.style.display = "none";
+               alert("Hé, attends un peu avant d'imprimer une autre image, je me repose...");
+           } else if (this.readyState == 4 && this.status == 200) {
+               x.style.display = "none";
+           }
+         };
+         xhttp.open("GET", "/print/image", true);
+         xhttp.send();
+    }
+
+    function printText(){
+        var xhttp = new XMLHttpRequest();
+         xhttp.onreadystatechange = function() {
+             if (this.readyState == 4 && this.status == 400) {
+               alert("Le text est trop long !");
+           }
+         };
+         xhttp.open("GET", "/print/text", true);
+         xhttp.send();
+    }
+
+    </script>
+</html>

templates/password.html

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+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8">
+        <title>Log in</title>
+        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
+        <link rel="stylesheet" href="{{ url_for('static',filename='css/style.css') }}">
+    </head>
+    <body class="container">
+        <div class="col-md-6 offset-md-3">
+            <h1>Login</h1>
+            {% with messages = get_flashed_messages(with_categories=true) %}
+              {% if messages %}
+                {% for category, message in messages %}
+                  <div class="alert alert-{{ category }}" role="alert">{{ message }}</div>
+                {% endfor %}
+              {% endif %}
+            {% endwith %}
+
+            <form action="/login" method="post">
+                <div class="form-group">
+                <input type="text" name="username" class="form-control" placeholder="Pseudo">
+                <input type="password" name="password" class="form-control" placeholder="Password">
+                <button type="submit" class="btn btn-primary">Submit</button>
+                </div>
+            </form>
+        </div>
+    </body>
+</html>

users.json

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+{
+    "users": {
+        "test" : "test",
+		"Karl" : "Marx" 
+    }
+}