flask server to upload csv file and download markdown and pdf

converter.py

@@ -84,7 +84,8 @@ def write_q_and_a_to_markdown_file(markdown_file, q_and_a):
         alpha = alphabet[i]
         markdown_file.writelines(' - {}) {}'.format(alpha, q_and_a.answerArray[i]))
 
-    markdown_file.writelines('---')
+    markdown_file.writelines('\n')
+    markdown_file.writelines('---')  # TODO leave out for the last page?
     return markdown_file
 
 

requirements.txt

@@ -7,3 +7,4 @@ requests==2.25.1
 urllib3==1.26.5
 websocket-client==1.1.0
 six==1.16.0 # needed for docker to run properly
+Flask-Cors==3.0.10

rest_server.py

@@ -0,0 +1,138 @@
+import os
+
+from flask import Flask
+from flask import render_template
+from flask import request, send_from_directory
+from flask import url_for
+from flask_cors import CORS
+# from flask_httpauth import HTTPBasicAuth
+# from werkzeug.security import check_password_hash
+# import main
+from werkzeug.utils import redirect
+
+# import config_parser
+# from md_tagebuch import diary
+import converter
+
+app = Flask(__name__)
+# auth = HTTPBasicAuth()
+app.config["DEBUG"] = True
+CORS(app)
+
+URL_BASE_PATH = "/"
+# URL_BASE_PATH = "/tagebuch"
+
+# @auth.verify_password
+# def verify_password(username, password):
+#     if username == config_parser.credentials['username'] and \
+#             check_password_hash(config_parser.credentials['hashedPassword'], password):
+#         return username
+
+OUTPUT_FODLER = "output"
+UPLOAD_FODLER = "upload"
+
+# @app.route(URL_BASE_PATH + 'home', methods=['GET'])
+# # @auth.login_required
+# def api_show_form():
+#     return render_template("index.html")
+
+
+@app.route(URL_BASE_PATH, methods=["GET", "POST"])
+def upload_image():
+    if request.method == "POST":
+        if request.files:
+            csv_file = request.files["csv"]
+            print(csv_file)
+
+            if not valid_csv(csv_file.filename):
+                # TODO give some feedback to user
+                return redirect(request.url)
+
+            from werkzeug.utils import secure_filename
+            filename = secure_filename(csv_file.filename)
+            output_file_path = os.path.join(UPLOAD_FODLER, filename)
+            csv_file.save(output_file_path)
+
+            # run converter
+            converter.convert(output_file_path, True)
+
+            return render_template("return_result.html")
+            # return redirect(request.url)
+
+    return render_template("upload-file.html")
+
+
+def valid_csv(filename):
+
+    # We only want files with a . in the filename
+    if not "." in filename:
+        return False
+
+    # Split the extension from the filename
+    ext = filename.rsplit(".", 1)[1]
+    return ext == 'csv'
+
+
+
+#
+# @app.route(URL_BASE_PATH, methods=['POST', 'GET'])
+# # @auth.login_required
+# def tagebuch():
+#     if request.method == "POST":
+#         user_input = request.form['yearmonth']
+#         return redirect(url_for("return_result", yearmonth=user_input))
+#     else:
+#         return render_template("tagebuch.html")
+#
+#
+# @app.route(URL_BASE_PATH + "<yearmonth>")
+# # @auth.login_required
+# def return_result(yearmonth):
+#     print(os.getcwd())
+#     filename = "slide-deck.md"
+#
+#     print("filename to be served: " + filename)
+#     data = "test"
+#     full_file_path = os.path.join(OUTPUT_FODLER, filename)
+#
+#     if os.path.exists(full_file_path):
+#         with open(full_file_path, 'r', encoding='UTF-8') as open_file:
+#             data = open_file.read()
+#             # return data
+#             # print(data)
+#         # open_file.close()
+#     # return f"<h1>{yearmonth}</h1>"
+#     # return "bla"
+#     return render_template("tagebuch_output.html", markdown_result=data, markdown_filename=filename)
+
+
+@app.route(URL_BASE_PATH + 'download', methods=['GET'])
+# @auth.login_required
+def download_file():
+    """Download the .md file."""
+    # print("sending file with name: " + filename)
+    current_dir = os.getcwd()
+    full_dir = os.path.join(current_dir, "output")
+    print("full_dir: " + full_dir)
+    return send_from_directory(full_dir, "slide-deck.md", as_attachment=True)\
+
+
+@app.route(URL_BASE_PATH + 'download-pdf', methods=['GET'])
+# @auth.login_required
+def download_pdf_file():
+    """Download the .pdf file."""
+    # print("sending file with name: " + filename)
+    current_dir = os.getcwd()
+    full_dir = os.path.join(current_dir, "output")
+    print("full_dir: " + full_dir)
+    return send_from_directory(full_dir, "slide-deck.pdf", as_attachment=True)
+
+
+if __name__ == '__main__':
+    flask_options = dict(
+        host='0.0.0.0',
+        debug=True,
+        port=4003,
+        threaded=True,
+    )
+    app.run(**flask_options)

templates/base.html

@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
+          integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>{% block title %} {% endblock %}</title>
+</head>
+
+<body>
+<div class="container">
+    <div class="row">
+        <div class="col">
+            <h1 style="color: blue">{% block pageHeader %} {% endblock %}</h1>
+            <hr>
+
+            <!--  <p>This is an HTML file served up by Flask</p>-->
+            <p>{% block content %} {% endblock %}</p>
+
+            <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
+                    integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
+            <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
+                    integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
+            <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
+                    integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
+
+        </div>
+    </div>
+</div>
+</body>
+
+</html>

templates/return_result.html

@@ -0,0 +1,15 @@
+{% extends "base.html" %}
+
+{% block pageHeader %} CSV to marp Markdown Converter {% endblock %}
+
+{% block content %}
+<h2>Result</h2>
+
+<!--<textarea rows="4" cols="50"> {{markdown_result}} </textarea>-->
+
+<p>
+    <!-- will call e.g. route /tagebuch/download/2021-02 -->
+    <a class="btn btn-primary" href="{{url_for('download_file')}}">Download Markdown File</a>
+    <a class="btn btn-primary" href="{{url_for('download_pdf_file')}}">Download PDF File</a>
+</p>
+{% endblock %}

templates/upload-file.html

@@ -0,0 +1,33 @@
+{% extends "base.html" %}
+
+{% block pageHeader %} CSV to marp Markdown Converter {% endblock %}
+
+{% block content %}
+
+<!--<div class="container">-->
+<!--  <div class="row">-->
+<!--    <div class="col">-->
+
+      <h2>Upload a CSV file</h2>
+
+      <form action="/" method="POST" enctype="multipart/form-data">
+
+        <div class="form-group">
+          <label>Select csv file</label>
+<!--          <div class="custom-file">-->
+<!--            <input type="file" class="custom-file-input" name="csv" id="csv">-->
+<!--            <label class="custom-file-label" for="csv">Select csv...</label>-->
+<!--          </div>-->
+          <div class="file-upload-wrapper">
+            <input type="file" id="input-file-max-fs" class="file-upload" name="csv" data-max-file-size="2M"/>
+          </div>
+
+        </div>
+
+        <button type="submit" class="btn btn-primary">Upload</button>
+
+      </form>
+
+
+
+{% endblock %}