Spodcast v0.5.0 which:

- fixes #13 (Cannot download episodes anymore)
 - uses _librespot-python_ interfaces instead of raw web API access (needed to fix #13)
 - can not yet determine decrypted file size for Spotify-hosted episodes (which used to work) so will only look at the file name to determine whether an episode has already been downloaded. To retry corrupted downloads just remove the partially downloaded file and try again.

requirements.txt

@@ -1 +0,0 @@
-https://github.com/kokarare1212/librespot-python/archive/refs/heads/rewrite.zip

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = spodcast
-version = 0.4.9
+version = 0.5.0
 description = A caching Spotify podcast to RSS proxy.
 long_description = file:README.md
 long_description_content_type = text/markdown
@@ -20,7 +20,8 @@ platforms = any
 packages =
     spodcast
 install_requires =
-    librespot >= 0.0.1
+    librespot >= 0.0.5
+    pybase62
     ffmpeg-python
     setuptools
 include_package_data =

spodcast/app.py

@@ -2,8 +2,9 @@ import logging
 
 from itertools import islice
 from librespot.audio.decoders import AudioQuality
+from librespot.metadata import ShowId, EpisodeId
 
-from spodcast.podcast import download_episode, get_show_episodes
+from spodcast.podcast import download_episode, get_episodes
 from spodcast.utils import regex_input_for_urls
 from spodcast.spodcast import Spodcast
 
@@ -15,10 +16,15 @@ def client(args) -> None:
 
     if args.urls:
         for spotify_url in args.urls:
-            episode_id, show_id = regex_input_for_urls(spotify_url)
+            episode_id_str, show_id_str = regex_input_for_urls(spotify_url)
-            log.debug(f"episode_id {episode_id}. show_id {show_id}")
+            log.debug(f"episode_id_str {episode_id_str}. show_id_str {show_id_str}")
-            if episode_id is not None:
+            if episode_id_str is not None:
+                episode_id = EpisodeId.from_base62(episode_id_str)
+                log.debug("episode_id: %s", episode_id)
+                download_episode(episode_id)
+            elif show_id_str is not None:
+                show_id = ShowId.from_base62(show_id_str)
+                log.debug("show_id: %s", show_id)
+                for episode_id in islice(get_episodes(show_id), Spodcast.CONFIG.get_max_episodes()):
+                    log.debug("episode_id: %s", episode_id)
                     download_episode(episode_id)
-            elif show_id is not None:
-                for episode in islice(get_show_episodes(show_id), Spodcast.CONFIG.get_max_episodes()):
-                    download_episode(episode)

spodcast/const.py

@@ -1,22 +1,8 @@
-ERROR = 'error'
+TYPE = 'type'
-ITEMS = 'items'
-NAME = 'name'
-DESCRIPTION = "description"
-ID = 'id'
-URL = 'url'
-URI = 'uri'
-EXTERNAL_URLS = 'external_urls'
-SPOTIFY = 'spotify'
-RELEASE_DATE = 'release_date'
-IMAGES = 'images'
 LIMIT = 'limit'
 OFFSET = 'offset'
 CREDENTIALS_PREFIX = 'spodcast-cred'
-AUTHORIZATION = 'Authorization'
-DURATION_MS = 'duration_ms'
-SHOW = 'show'
-TYPE = 'type'
 USER_READ_EMAIL = 'user-read-email'
-PLAYLIST_READ_PRIVATE = 'playlist-read-private'
-USER_LIBRARY_READ = 'user-library-read'
 FILE_EXISTS = -1
+OPEN_SPOTIFY_URL = 'open.spotify.com'
+IMAGE_CDN = lambda image_id_hex: f'https://i.scdn.co/image/{image_id_hex}'

spodcast/podcast.py

@@ -6,68 +6,61 @@ from datetime import datetime
 from html import escape
 import urllib.parse
 
-from librespot.metadata import EpisodeId
+import base62
-
+from base62 import CHARSET_INVERTED
 import ffmpeg
 
-from spodcast.const import ERROR, ID, ITEMS, NAME, SHOW, DURATION_MS, DESCRIPTION, RELEASE_DATE, URI, URL, EXTERNAL_URLS, IMAGES, SPOTIFY, FILE_EXISTS
+from librespot import util
+from librespot.metadata import ShowId, EpisodeId
+from librespot.core import ApiClient
+
+from spodcast.const import FILE_EXISTS, IMAGE_CDN
 from spodcast.feedgenerator import RSS_FEED_CODE, RSS_FEED_FILE_NAME, RSS_FEED_SHOW_INDEX, RSS_FEED_INFO_EXTENSION, RSS_FEED_SHOW_IMAGE, RSS_FEED_VERSION, get_index_version
-from spodcast.spotapi import EPISODE_INFO_URL, SHOWS_URL, EPISODE_DOWNLOAD_URL, ANON_PODCAST_DOMAIN
+from spodcast.utils import clean_filename, uri_to_url
-from spodcast.utils import clean_filename
 from spodcast.spodcast import Spodcast
 
 log = logging.getLogger(__name__)
 
-def get_info(episode_id_str, target="episode"):
+
+def hex_to_spotify_id(hex_id):
+    return base62.encodebytes(util.hex_to_bytes(hex_id), CHARSET_INVERTED)
+
+
+def get_show_info(show_id_hex):
+    log.info("Fetching show information...")
+    show_id = ShowId.from_hex(show_id_hex)
+    uri = f'spotify:show:{hex_to_spotify_id(show_id_hex)}'
+    info = Spodcast.SESSION.api().get_metadata_4_show(show_id)
+    link = uri_to_url(uri)
+    description = info.description
+    image = IMAGE_CDN(util.bytes_to_hex(info.cover_image.image[1].file_id))
+
+    return link, description, image
+
+
+def get_episode_info(episode_id_hex):
     log.info("Fetching episode information...")
-    (raw, info) = Spodcast.invoke_url(f'{EPISODE_INFO_URL}/{episode_id_str}')
+    episode_id = EpisodeId.from_hex(episode_id_hex)
-    if not info:
+    uri = f'spotify:episode:{hex_to_spotify_id(episode_id_hex)}'
-        log.error('INVALID EPISODE ID')
+    info = Spodcast.SESSION.api().get_metadata_4_episode(episode_id)
+    podcast_name = info.show.name
+    podcast_id = util.bytes_to_hex(info.show.gid)
+    episode_name = info.name
+    duration_ms = info.duration
+    description = info.description
+    external_url = info.external_url if info.external_url else None
+    pt = info.publish_time
+    release_date = f'{pt.year}-{pt.month}-{pt.day}T{pt.hour}:{pt.minute}:00Z'
 
-    log.debug("episode info: %s", info)
+    return podcast_name, podcast_id, duration_ms, episode_name, description, release_date, uri, external_url
-
-    if ERROR in info:
-        return None, None
-
-    if target == "episode":
-
-        podcast_name = info[SHOW][NAME]
-        episode_name = info[NAME]
-        duration_ms = info[DURATION_MS]
-        description = info[DESCRIPTION]
-        release_date = info[RELEASE_DATE]
-        uri = info[URI]
-
-        return podcast_name, duration_ms, episode_name, description, release_date, uri
-
-    elif target == "show":
-        podcast_name = info[SHOW][NAME]
-        link = info[SHOW][EXTERNAL_URLS][SPOTIFY]
-        description = info[SHOW][DESCRIPTION]
-        image = info[SHOW][IMAGES][0][URL]
-
-        return podcast_name, link, description, image
 
 
-def get_show_episodes(show_id_str) -> list:
+def get_episodes(show_id):
-    episodes = []
+    info = Spodcast.SESSION.api().get_metadata_4_show(show_id)
-    offset = 0
+    episodes = info.episode
-    limit = 50
+    episodes.sort(key = lambda x: datetime.strptime(f'{x.publish_time.year}-{x.publish_time.month}-{x.publish_time.day}T{x.publish_time.hour}:{x.publish_time.minute}:00Z', "%Y-%m-%dT%H:%M:%SZ"), reverse=True)
 
-    log.info("Fetching episodes...")
+    return [util.bytes_to_hex(episode.gid) for episode in episodes]
-    while True:
-        resp = Spodcast.invoke_url_with_params(
-            f'{SHOWS_URL}/{show_id_str}/episodes', limit=limit, offset=offset)
-        offset += limit
-        for episode in resp[ITEMS]:
-            episodes.append([episode[ID], episode[RELEASE_DATE]])
-        if len(resp[ITEMS]) < limit:
-            break
-
-    # some shows list episodes in the wrong order so reverse sort them by release date
-    episodes.sort(key=lambda x: datetime.strptime(x[1], "%Y-%m-%d"), reverse=True)
-
-    return [episode[0] for episode in episodes]
 
 
 def download_file(url, filepath):
@@ -101,14 +94,24 @@ def download_file(url, filepath):
 
     return filepath, os.path.getsize(filepath), mimetype
 
+
 def download_stream(stream, filepath):
     size = stream.input_stream.size
+
     mp3_filepath = os.path.splitext(filepath)[0] + ".mp3"
     mimetype = "audio/ogg"
 
     if (
-        ((os.path.isfile(filepath)
+        # "FILE SIZE CHECK TEMPORARILY OUT OF ORDER"
-        and abs(size - os.path.getsize(filepath)) < 1000)
+        # Need to find a way to get decrypted content size
+        # from Spotify to enable file size checks, for now
+        # this only checks for the presence of a file with
+        # the same name. To recover from failed downloads
+        # simply remove incomplete files
+        #
+        #((os.path.isfile(filepath)
+        #and abs(size - os.path.getsize(filepath)) < 1000)
+        (os.path.isfile(filepath)
         or (Spodcast.CONFIG.get_transcode()
         and os.path.isfile(mp3_filepath)))
         and Spodcast.CONFIG.get_skip_existing_files()
@@ -145,7 +148,8 @@ def download_stream(stream, filepath):
 
 
 def download_episode(episode_id) -> None:
-    podcast_name, duration_ms, episode_name, description, release_date, uri = get_info(episode_id, "episode")
+    try:
+        podcast_name, podcast_id, duration_ms, episode_name, description, release_date, uri, download_url = get_episode_info(episode_id)
 
         if podcast_name is None:
             log.warning('Skipping episode (podcast NOT FOUND)')
@@ -153,14 +157,11 @@ def download_episode(episode_id) -> None:
             log.warning('Skipping episode (episode NOT FOUND)')
         else:
             filename = clean_filename(podcast_name + ' - ' + episode_name)
-        log.debug(Spodcast.invoke_url(EPISODE_DOWNLOAD_URL(episode_id)))
-        download_url = Spodcast.invoke_url(EPISODE_DOWNLOAD_URL(episode_id))[1]["data"]["episode"]["audio"]["items"][-1]["url"]
-        log.debug(f"download_url: {download_url}")
             show_directory = os.path.realpath(os.path.join(Spodcast.CONFIG.get_root_path(), clean_filename(podcast_name) + '/'))
             os.makedirs(show_directory, exist_ok=True)
 
-        if ANON_PODCAST_DOMAIN in download_url:
+            if download_url is None:
-            episode_stream_id = EpisodeId.from_base62(episode_id)
+                episode_stream_id = EpisodeId.from_hex(episode_id)
                 stream = Spodcast.get_content_stream(episode_stream_id, Spodcast.DOWNLOAD_QUALITY)
                 basename = f"{filename}.ogg"
                 filepath = os.path.join(show_directory, basename)
@@ -181,7 +182,7 @@ def download_episode(episode_id) -> None:
                             "mimetype": mimetype,
                             "medium": "audio",
                             "duration": int(duration_ms/1000),
-                        "date": time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.strptime(release_date, "%Y-%m-%d")),
+                            "date": time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.strptime(release_date, "%Y-%m-%dT%H:%M:%SZ")),
                             "title": escape(episode_name), "guid": uri, "description": escape(description),
                             "filename": urllib.parse.quote(basename),
                             "size": int(size) }
@@ -192,7 +193,7 @@ def download_episode(episode_id) -> None:
             if Spodcast.CONFIG.get_rss_feed():
                 show_index_file_name = os.path.join(show_directory, f"{RSS_FEED_SHOW_INDEX}.{RSS_FEED_INFO_EXTENSION}")
                 if not os.path.isfile(show_index_file_name) or int(get_index_version(show_index_file_name)) < Spodcast.CONFIG.get_version_int():
-                podcast_name, link, description, image = get_info(episode_id, "show")
+                    podcast_link, podcast_description, podcast_image = get_show_info(podcast_id)
                     show_info = {}
                     if os.path.isfile(show_index_file_name):
                         with open(show_index_file_name, encoding='utf-8') as file:
@@ -200,8 +201,8 @@ def download_episode(episode_id) -> None:
                             file.close()
                     show_info["version"] = str(RSS_FEED_VERSION + Spodcast.CONFIG.get_version_str())
                     show_info["title"] = escape(podcast_name)
-                show_info["link"] = link
+                    show_info["link"] = podcast_link
-                show_info["description"] = escape(description)
+                    show_info["description"] = escape(podcast_description)
                     show_info["image"] = RSS_FEED_SHOW_IMAGE 
                     show_index_file = open(show_index_file_name, "w")
                     show_index_file.write(json.dumps(show_info))
@@ -209,7 +210,7 @@ def download_episode(episode_id) -> None:
 
                 show_image_name = os.path.join(show_directory, f"{RSS_FEED_SHOW_IMAGE}")
                 if not os.path.isfile(show_image_name):
-                download_file(image, show_image_name)
+                    download_file(podcast_image, show_image_name)
 
                 rss_file_name = os.path.join(show_directory, RSS_FEED_FILE_NAME)
                 if not os.path.isfile(rss_file_name) or int(get_index_version(rss_file_name)) < Spodcast.CONFIG.get_version_int():
@@ -217,3 +218,5 @@ def download_episode(episode_id) -> None:
                     rss_file.write(RSS_FEED_CODE(Spodcast.CONFIG.get_version_str()))
                     rss_file.close()
 
+    except ApiClient.StatusCodeException as status:
+        log.warning("episode %s, StatusCodeException: %s", episode_id, status)

spodcast/spodcast.py

@@ -137,6 +137,7 @@ class Spodcast:
     @classmethod
     def invoke_url(cls, url, tryCount=0):
         headers = cls.get_auth_header()
+        Spodcast.LOG.debug(headers)
         response = requests.get(url, headers=headers)
         responsetext = response.text
         responsejson = response.json()

spodcast/spotapi.py

@@ -1,9 +0,0 @@
-EPISODE_INFO_URL = 'https://api.spotify.com/v1/episodes'
-
-SHOWS_URL = 'https://api.spotify.com/v1/shows'
-
-EPISODE_DOWNLOAD_URL = lambda episode_id: f'https://api-partner.spotify.com/pathfinder/v1/query?operationName=getEpisode&variables={{"uri":"spotify:episode:{episode_id}"}}&extensions={{"persistedQuery":{{"version":1,"sha256Hash":"224ba0fd89fcfdfb3a15fa2d82a6112d3f4e2ac88fba5c6713de04d1b72cf482"}}}}'
-
-ANON_PODCAST_DOMAIN = 'anon-podcast.scdn.co'
-
-

spodcast/utils.py

@@ -5,6 +5,7 @@ from enum import Enum
 from typing import List, Tuple
 
 from spodcast.spodcast import Spodcast
+from spodcast.const import OPEN_SPOTIFY_URL
 
 valid_filename_chars = "-_.() %s%s" % (string.ascii_letters, string.digits)
 
@@ -47,3 +48,6 @@ def clean_filename(filename, whitelist=valid_filename_chars, replace=' '):
     cleaned_filename = ''.join(c for c in cleaned_filename if c in whitelist)
     return cleaned_filename
 
+def uri_to_url(spotify_id):
+    (spotify,sp_type,sp_id) = spotify_id.split(':')
+    return f'https://{OPEN_SPOTIFY_URL}/{sp_type}/{sp_id}'