added proper direct download support for podcasts

zspotify/podcast.py

@@ -27,7 +27,8 @@ def get_show_episodes(show_id_str) -> list:
     limit = 50
 
     while True:
-        resp = ZSpotify.invoke_url_with_params(f'{SHOWS_URL}/{show_id_str}/episodes', limit=limit, offset=offset)
+        resp = ZSpotify.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])
@@ -37,6 +38,33 @@ def get_show_episodes(show_id_str) -> list:
     return episodes
 
 
+def download_podcast_directly(url, filename):
+    import functools
+    import pathlib
+    import shutil
+    import requests
+    from tqdm.auto import tqdm
+
+    r = requests.get(url, stream=True, allow_redirects=True)
+    if r.status_code != 200:
+        r.raise_for_status()  # Will only raise for 4xx codes, so...
+        raise RuntimeError(
+            f"Request to {url} returned status code {r.status_code}")
+    file_size = int(r.headers.get('Content-Length', 0))
+
+    path = pathlib.Path(filename).expanduser().resolve()
+    path.parent.mkdir(parents=True, exist_ok=True)
+
+    desc = "(Unknown total file size)" if file_size == 0 else ""
+    r.raw.read = functools.partial(
+        r.raw.read, decode_content=True)  # Decompress if needed
+    with tqdm.wrapattr(r.raw, "read", total=file_size, desc=desc) as r_raw:
+        with path.open("wb") as f:
+            shutil.copyfileobj(r_raw, f)
+
+    return path
+
+
 def download_episode(episode_id) -> None:
     podcast_name, episode_name = get_episode_info(episode_id)
 
@@ -47,8 +75,8 @@ def download_episode(episode_id) -> None:
     else:
         filename = podcast_name + ' - ' + episode_name
 
-        episode_id = EpisodeId.from_base62(episode_id)
-        stream = ZSpotify.get_content_stream(episode_id, ZSpotify.DOWNLOAD_QUALITY)
+        direct_download_url = ZSpotify.invoke_url(
+            'https://api-partner.spotify.com/pathfinder/v1/query?operationName=getEpisode&variables={"uri":"spotify:episode:' + episode_id + '"}&extensions={"persistedQuery":{"version":1,"sha256Hash":"224ba0fd89fcfdfb3a15fa2d82a6112d3f4e2ac88fba5c6713de04d1b72cf482"}}')["data"]["episode"]["audio"]["items"][-1]["url"]
 
         download_directory = os.path.join(
             os.path.dirname(__file__),
@@ -58,33 +86,41 @@ def download_episode(episode_id) -> None:
         download_directory = os.path.realpath(download_directory)
         create_download_directory(download_directory)
 
-        total_size = stream.input_stream.size
+        if "anon-podcast.scdn.co" in direct_download_url:
+            episode_id = EpisodeId.from_base62(episode_id)
+            stream = ZSpotify.get_content_stream(
+                episode_id, ZSpotify.DOWNLOAD_QUALITY)
 
-        filepath = os.path.join(download_directory, f"{filename}.ogg")
-        if (
-            os.path.isfile(filepath)
-            and os.path.getsize(filepath) == total_size
-            and ZSpotify.get_config(SKIP_EXISTING_FILES)
-        ):
-            print(
-                "\n###   SKIPPING:",
-                podcast_name,
-                "-",
-                episode_name,
-                "(EPISODE ALREADY EXISTS)   ###",
-            )
-            return
+            total_size = stream.input_stream.size
 
-        with open(filepath, 'wb') as file, tqdm(
-            desc=filename,
-            total=total_size,
-            unit='B',
-            unit_scale=True,
-            unit_divisor=1024
-        ) as bar:
-            for _ in range(int(total_size / ZSpotify.get_config(CHUNK_SIZE)) + 1):
-                bar.update(file.write(
-                    stream.input_stream.stream().read(ZSpotify.get_config(CHUNK_SIZE))))
+            filepath = os.path.join(download_directory, f"{filename}.ogg")
+            if (
+                os.path.isfile(filepath)
+                and os.path.getsize(filepath) == total_size
+                and ZSpotify.get_config(SKIP_EXISTING_FILES)
+            ):
+                print(
+                    "\n###   SKIPPING:",
+                    podcast_name,
+                    "-",
+                    episode_name,
+                    "(EPISODE ALREADY EXISTS)   ###",
+                )
+                return
+
+            with open(filepath, 'wb') as file, tqdm(
+                desc=filename,
+                total=total_size,
+                unit='B',
+                unit_scale=True,
+                unit_divisor=1024
+            ) as bar:
+                for _ in range(int(total_size / ZSpotify.get_config(CHUNK_SIZE)) + 1):
+                    bar.update(file.write(
+                        stream.input_stream.stream().read(ZSpotify.get_config(CHUNK_SIZE))))
+        else:
+            filepath = os.path.join(download_directory, f"{filename}.mp3")
+            download_podcast_directly(direct_download_url, filepath)
 
         # convert_audio_format(ROOT_PODCAST_PATH +
         #                     extra_paths + filename + '.ogg')