basic code to generate podcast feed. Add buttons to generate and open feed. Validate input URLs

README.md

@@ -20,7 +20,9 @@
 ### Use Python Library to generate RSS Feed
 https://github.com/lkiesow/python-feedgen
  - Serve xml file via same Flask app?
-
+2 buttons:
+   - Copy podcast link to clipboard
+   - open podcast.xml
 
 admin
 test123

requirements.txt

@@ -12,3 +12,5 @@ Werkzeug==2.0.0
 jinja2==3.0.3
 requests==2.28.2
 PyYAML==6.0
+feedgen==0.9.0
+validators==0.20.0

rest_server.py

@@ -1,7 +1,7 @@
 import os
 
 import flask
-from flask import render_template
+from flask import render_template, send_from_directory, redirect
 from flask import request
 from flask import url_for
 from flask_cors import CORS
@@ -13,6 +13,7 @@ from werkzeug.security import check_password_hash
 import config_parser
 # from yt2podcast.ytdownloader import call_youtubedl
 from yt2podcast.ytdl_handler import call_youtubedl
+from yt2podcast.feed_generator import generate_feed_for_yt_file
 
 app = flask.Flask(__name__)
 auth = HTTPBasicAuth()
@@ -30,23 +31,50 @@ def verify_password(username, password):
         return username
 
 
-@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=['POST', 'GET'])
 @auth.login_required
 def handle_yt_url():
     if request.method == "POST":
+        if request.form.get('generate-feed') == 'generate-feed':
+            generate_feed_for_yt_file()
+            return render_template("yt.html", isValidUrl=True)
+
+        # if request.form.get('open-podcast') == 'open-podcast':
+        #     return redirect(url_for('serve_static'), path='podcast.xml')
+            # return url_for('static', filename='podcast.xml')
+            # from flask import Response
+            # xml = 'foo'
+            # resp = app.make_response(xml)
+            # resp.mimetype = "text/xml"
+            # return resp
+            # r = Response(response='./feed/podcast.xml', status=200, mimetype="application/xml")
+            # r.headers["Content-Type"] = "text/xml; charset=utf-8"
+            # return r
+            # return app.send_static_file('./feed/podcast.xml')
+
         user_input = request.form['ytlink']
         # return redirect(url_for("return_result", ytlink=user_input))
         print(user_input)
-        call_youtubedl(user_input)
-        return render_template("yt.html")
+        # TODO verify its a url
+        import validators
+
+        is_valid_url=validators.url(user_input)
+        if is_valid_url:
+            call_youtubedl(user_input)
+
+
+        return render_template("yt.html", isValidUrl=is_valid_url)
     else:
-        return render_template("yt.html")
+        return render_template("yt.html", isValidUrl=True)
+
+
+# @app.route(URL_BASE_PATH + 'podcast', methods=['GET'])
+# def serve_podcast_xml():
+#     return app.send_static_file('podcast.xml')
+
+@app.route('/static/<path:path>')
+def serve_static(path):
+    return send_from_directory('static', path)
 
 
 if __name__ == '__main__':

templates/index.html

@@ -1,8 +0,0 @@
-{% extends "base.html" %}
-{% block content %} Home Page {% endblock %}
-
-
-
-<!--{%for _ in range(10) %}-->
-<!--  <p>x</p>-->
-<!--{% endfor %}-->

templates/yt.html

@@ -4,10 +4,19 @@
 
 
 {% block content %}
-<p>Input youtube URL</p>
+<p>Input youtube URL:</p>
 <form action="#" method="post">
-<p><input type="text" name="ytlink" placeholder="https://www.youtube.com/watch?v=abc" /> </p>
+<p><input type="text" name="ytlink" placeholder="https://www.youtube.com/watch?v=b63l5MLuQcQ" /> </p>
+{% if not isValidUrl %}
+  <label style="color: red">URL is invalid!</label>
+{% endif %}
 <p><input class="btn btn-primary" type="submit" value="submit" /> </p>
+<input type="submit" value="generate-feed" name="generate-feed" />
+{#<input type="submit" value="open-podcast" name="open-podcast" />#}
+{#<a href="{{ url_for('serve_static',path = 'podcast.xml')}}">Open Podcast Feed</a>#}
+<a class="btn btn-primary" href="{{ url_for('serve_static',path = 'podcast.xml')}}">Open Podcast Feed</a>
+
+{#<button name="open-podcast" href="./static/podcast.xml"></button>#}
 </form>
 {% endblock %}
 

yt2podcast/feed_generator.py

@@ -0,0 +1,33 @@
+from feedgen.feed import FeedGenerator
+
+def generate_feed_for_yt_file():
+
+    print("generating podcast feed...")
+    fg = FeedGenerator()
+    fg.id('http://lernfunk.de/media/654321')
+    fg.title('Some Testfeed')
+    fg.author( {'name':'John Doe','email':'john@example.de'} )
+    fg.link( href='http://example.com', rel='alternate' )
+    fg.logo('http://ex.com/logo.jpg')
+    fg.subtitle('This is a cool feed!')
+    fg.link( href='http://larskiesow.de/test.atom', rel='self' )
+    fg.language('en')
+
+    add_entry(fg)
+
+def add_entry(fg):
+    from feedgen.feed import FeedGenerator
+    # fg = FeedGenerator()
+    fg.load_extension('podcast')
+    # fg.podcast.itunes_category('Technology', 'Podcasting')
+
+    fe = fg.add_entry()
+    fe.id('http://lernfunk.de/media/654321/1/file.mp3')
+    fe.title('The First Episode')
+    fe.description('Enjoy our first episode.')
+    fe.enclosure('http://lernfunk.de/media/654321/1/file.mp3', 0, 'audio/mpeg')
+
+    fg.rss_str(pretty=True)
+    print("generating xml file...")
+    fg.rss_file('podcast.xml')
+    fg.rss_file('./feed/podcast.xml')

yt2podcast/ytdl_handler.py

@@ -9,7 +9,7 @@ def call_youtubedl(url):
     print(url)
     download_audio(url)
     # thread = Thread(args=(, ))
-    thread = threading.Thread(target=download_audio, args=(url, "first_test"), daemon=True)
+    thread = threading.Thread(target=download_audio, args=(url,), daemon=True)
     thread.start()
     thread.join()
 
@@ -20,6 +20,7 @@ def call_youtubedl(url):
     # print("thread finished...exiting")
 
 def download_audio(url):
+    # based on https://www.programcreek.com/python/?code=DuckBoss%2FJJMumbleBot%2FJJMumbleBot-master%2FJJMumbleBot%2Fplugins%2Fextensions%2Fsound_board%2Futility%2Fsound_board_utility.py
     ydl_opts = {
         'format': 'bestaudio/best',
         'outtmpl': f'/output/%(title)s.mp3', # Template for output names. Needed to change the file extension