diora-web/podcasts/antennapod.py
mrwnslz 54fbd58293
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Podcast-Routine aus AntennaPod: Abspiel-Einstellungen fürs Konto, Listen und Stille pro Podcast; Oberfläche aus diora-android 304abf0, sw v65
- PodcastSettings (Migration 0014): skip_back / skip_forward (5–60 s),
  smart_played, speed_presets (0,5–3,5×), keep_skipped, delete_dequeue,
  mobile_downloads, mobile_streaming (allow/ask/never), times_by_speed;
  die ersten vier sind anfangs leer (null) und werden mit POST
  settings/ {"initial": {...}} nur dort gesetzt, wo noch nichts steht
- GET/POST /podcasts/settings/ und state.settings mit allen Feldern,
  geprüft, nichts ändert sich bei einem ungültigen Wert
- PodcastFeed: episode_sort, episode_filter, skip_silence in
  feeds/<id>/settings/ und den Feeds des States
- Tempo pro Podcast bis 3,5× (Server und AntennaPod-Import)
- AntennaPod-Import: Sortierung, Filter und Stille pro Podcast, soweit
  diora sie zeigen kann; nicht darstellbare werden gezählt
- Browser-Host: Sprungweiten, "gehört" und keep_skipped aus dem Konto,
  Tempo bis 3,5×, neue Einstellungen werden gespeichert

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-02 18:46:55 +02:00

878 lines
40 KiB
Python

"""Import an AntennaPod database backup into one user's podcasts.
AntennaPod's "Datenbank exportieren" writes its whole SQLite database. From
it come the subscriptions with their settings, the state of every episode
that has one (played, new, started, queued, favourite), the queue and which
episodes were on the phone (the app offers to download those again). See
the import_antennapod command for how to run it.
The backup is only read. Episodes without any state (and not on the phone)
are not imported: the feed's current episodes come with its next refresh
anyway. Those that diora already has, though, are taken out of the inbox
(AntennaPod: not new).
"""
import re
import sqlite3
import time
from contextlib import contextmanager
from dataclasses import dataclass, field
from datetime import datetime, timezone as dt_timezone
from itertools import groupby
from pathlib import Path
from urllib.parse import urlsplit
from django.db import transaction
from django.db.models import Q
from .models import MAX_SPEED, MIN_SPEED, EpisodeProgress, PodcastEpisode, PodcastFeed, PodcastQueue, PodcastSettings
from .views import MAX_DESCRIPTION, _keep_sorted, _leave_inbox, _queue_order, _write_queue_order
CHUNK = 500 # ids per IN (...) query and rows per bulk write
# Feeds.feed_volume_adaption -> diora volume factor (0 = off = 1.0)
VOLUME_CODES = {1: 0.5, 2: 0.2, 3: 1.5, 4: 2.0, 5: 2.5}
# Feeds.new_episodes_action; 0 = the global setting (not in the backup)
NEW_EPISODE_ACTIONS = {1: PodcastFeed.NEW_INBOX, 2: PodcastFeed.NEW_IGNORE, 3: PodcastFeed.NEW_QUEUE}
# Feeds.auto_download; 1 = the global setting (not in the backup)
AUTO_DOWNLOAD_OFF, AUTO_DOWNLOAD_GLOBAL, AUTO_DOWNLOAD_ON = 0, 1, 2
# FeedItems.read
NEW, UNPLAYED, PLAYED = -1, 0, 1
SUBSCRIBED = 0 # Feeds.state
# FeedMedia.filesize above this is garbage (seen: 10^13); taken as unknown.
MAX_FILESIZE = 4_000_000_000
SETTING_FIELDS = ('playback_speed', 'skip_intro', 'skip_outro', 'volume', 'include_words',
'exclude_words', 'min_duration', 'new_episodes', 'auto_download', 'notify',
'episode_sort', 'episode_filter', 'skip_silence')
# Feeds.sort_order (SortOrder codes) -> episode_sort; 11 = the global order
# (not in the backup). The others (title Z-A, file name, size) diora can't show.
SORT_ORDERS = {1: 'old', 2: 'new', 3: 'title', 5: 'short', 6: 'long'}
GLOBAL_SORT = 11
# Feeds.hide (FeedItemFilter, comma-separated) -> episode_filter
FILTERS = {'unplayed': 'unplayed', 'played': 'played', 'paused': 'in_progress', 'is_favorite': 'favorites',
'queued': 'queued', 'downloaded': 'downloaded'}
# Feeds.feed_skip_silence (SkipSilence codes); 1 = the global setting
SKIP_SILENCE = {0: False, 2: True}
# Columns read from the backup, with the value to assume if an older
# AntennaPod didn't have the column yet.
FEED_COLUMNS = {
'id': None, 'title': '', 'custom_title': None, 'download_url': '', 'link': '', 'author': '',
'image_url': '', 'keep_updated': 1, 'include_filter': '', 'exclude_filter': '',
'minimal_duration_filter': -1, 'new_episodes_action': 0, 'feed_playback_speed': -1,
'feed_skip_intro': 0, 'feed_skip_ending': 0, 'feed_volume_adaption': 0, 'auto_download': 1,
'episode_notification': 0, 'state': SUBSCRIBED, 'sort_order': None, 'hide': '', 'feed_skip_silence': 1,
}
class AntennaPodImportError(Exception):
"""The file isn't an AntennaPod backup (or the user doesn't exist)."""
# ---------------------------------------------------------------------------
# Small helpers
# ---------------------------------------------------------------------------
def normalize_url(url):
"""A URL reduced to what identifies it: no scheme (http = https), host in
lower case without a leading www., no default port, no trailing slash, no
fragment. None for anything but http(s)."""
url = (url or '').strip()
try:
parts = urlsplit(url)
port = parts.port
except ValueError:
return None
if parts.scheme.lower() not in ('http', 'https') or not parts.hostname:
return None
host = parts.hostname.lower()
if host.startswith('www.'):
host = host[4:]
if port and port not in (80, 443):
host = f'{host}:{port}'
path = parts.path.rstrip('/')
return host + path + (f'?{parts.query}' if parts.query else '')
def _web_url(url, max_length=1000):
"""url if it is a usable http(s) URL for a URLField, else ''."""
url = (url or '').strip()
if normalize_url(url) is None or len(url) > max_length:
return ''
return url
# AntennaPod's filter syntax: words separated by spaces, "quoted phrases".
_TERM = re.compile(r'([^"]\S*|".+?")\s*')
def parse_filter_terms(raw):
"""AntennaPod filter text -> its terms, e.g. 'a "b c"' -> ['a', 'b c']."""
terms = []
for m in _TERM.finditer(raw or ''):
# diora separates its words by commas, so a comma can't be in one.
term = ' '.join(m.group(1).replace('"', '').replace(',', ' ').split())
if term and term.casefold() not in {t.casefold() for t in terms}:
terms.append(term)
return terms
def filter_words(raw, max_length=500):
"""AntennaPod filter text -> diora's comma-separated words ('' if none);
as many whole terms as fit into the field."""
out = ''
for term in parse_filter_terms(raw):
candidate = f'{out}, {term}' if out else term
if len(candidate) > max_length:
break
out = candidate
return out
def _ms(value):
"""A millisecond timestamp -> aware datetime; None for 0/empty/absurd."""
try:
value = int(value or 0)
except (TypeError, ValueError):
return None
if value <= 0:
return None
try:
return datetime.fromtimestamp(value / 1000, tz=dt_timezone.utc)
except (OverflowError, OSError, ValueError):
return None
def _chunks(seq, size=CHUNK):
seq = list(seq)
for i in range(0, len(seq), size):
yield seq[i:i + size]
@contextmanager
def _given_updated_at():
"""Let bulk_create keep the EpisodeProgress.updated_at we set (auto_now
would put now everywhere, and the history and the statistics go by it)."""
f = EpisodeProgress._meta.get_field('updated_at')
f.auto_now = False
try:
yield
finally:
f.auto_now = True
# ---------------------------------------------------------------------------
# Feed settings
# ---------------------------------------------------------------------------
def episode_sort(code):
"""Feeds.sort_order -> (episode_sort or None, representable). None and
the global order are no setting of the feed (representable, nothing to set)."""
try:
code = int(code) if code not in (None, '') else None
except (TypeError, ValueError):
return None, False
if code is None or code == GLOBAL_SORT:
return None, True
return SORT_ORDERS.get(code), code in SORT_ORDERS
def episode_filter(raw):
"""Feeds.hide -> (episode_filter or None, representable): the filter only
if diora can show all of its terms (a part of it would be another list)."""
terms = [t.strip() for t in (raw or '').split(',') if t.strip()]
if not terms:
return None, True
if any(t not in FILTERS for t in terms):
return None, False
return list(dict.fromkeys(FILTERS[t] for t in terms)), True
def feed_settings(ap, global_auto_download=False):
"""diora settings for one AntennaPod feed row: only those AntennaPod sets
to something other than its default. Returns (settings, not_kept_updated)."""
s = {}
speed = ap['feed_playback_speed']
if speed is not None and speed > 0: # -1 = the global speed
s['playback_speed'] = min(max(round(float(speed), 2), MIN_SPEED), MAX_SPEED)
for src, dst in (('feed_skip_intro', 'skip_intro'), ('feed_skip_ending', 'skip_outro')):
seconds = int(ap[src] or 0)
if seconds > 0:
s[dst] = min(seconds, 600)
volume = VOLUME_CODES.get(ap['feed_volume_adaption'] or 0)
if volume:
s['volume'] = volume
for src, dst in (('include_filter', 'include_words'), ('exclude_filter', 'exclude_words')):
words = filter_words(ap[src])
if words:
s[dst] = words
minutes = int(ap['minimal_duration_filter'] or 0) // 60 # seconds, -1 = none
if minutes > 0:
s['min_duration'] = min(minutes, 600)
action = NEW_EPISODE_ACTIONS.get(ap['new_episodes_action'] or 0)
# "Don't update this podcast": AntennaPod never shows anything new of it.
not_kept_updated = not ap['keep_updated'] and action != PodcastFeed.NEW_QUEUE
if not_kept_updated:
action = PodcastFeed.NEW_IGNORE
if action:
s['new_episodes'] = action
code = ap['auto_download']
if code == AUTO_DOWNLOAD_ON:
s['auto_download'] = True
elif code == AUTO_DOWNLOAD_GLOBAL:
s['auto_download'] = bool(global_auto_download)
elif code == AUTO_DOWNLOAD_OFF:
s['auto_download'] = False
# Feeds.episode_notification: 1 = a notification for each new episode
# (0, AntennaPod's default, leaves diora's setting alone).
if ap['episode_notification']:
s['notify'] = True
# The podcast's episode list: its order and filter, where diora has them.
sort, _ = episode_sort(ap['sort_order'])
if sort:
s['episode_sort'] = sort
filters, _ = episode_filter(ap['hide'])
if filters:
s['episode_filter'] = filters
# Skip silence: off or on for this podcast (the global setting: diora's stays).
if ap['feed_skip_silence'] in SKIP_SILENCE:
s['skip_silence'] = SKIP_SILENCE[ap['feed_skip_silence']]
return s, not_kept_updated
# ---------------------------------------------------------------------------
# The import
# ---------------------------------------------------------------------------
@dataclass
class ItemState:
"""What one AntennaPod episode says about its diora episode."""
played: bool
dismissed: bool
position: int # seconds
favorite: bool
activity: datetime | None # last played or finished, if known
when: datetime # what updated_at becomes: activity, else pub date, else the backup date
def merge(self, other):
"""Two AntennaPod episodes (duplicate feeds) for one diora episode:
the one listened to last, a star from either."""
a = self if self.when >= other.when else other
return ItemState(a.played, a.dismissed, a.position, self.favorite or other.favorite, a.activity, a.when)
@dataclass
class Stats:
backup_feeds: int = 0
not_subscribed: int = 0
matched: int = 0
created: int = 0
duplicates: int = 0
created_titles: list = field(default_factory=list)
skipped_feeds: list = field(default_factory=list) # (title, url)
settings: dict = field(default_factory=lambda: {name: 0 for name in SETTING_FIELDS})
not_kept_updated: int = 0
sort_unshown: int = 0 # per-feed orders / filters diora has no equivalent of
filter_unshown: int = 0
auto_download_on: int = 0
auto_download_explicit: int = 0
auto_download_global: int = 0
auto_download_default: bool = False
auto_download_default_changed: bool = False
stateful: int = 0
by_guid: int = 0
by_url: int = 0
episodes_created: int = 0
no_audio: int = 0
in_skipped_feeds: int = 0
stateless_matched: int = 0
progress_new: int = 0
progress_updated: int = 0
progress_unchanged: int = 0
progress_kept: int = 0
left_inbox: int = 0
favorites_backup: int = 0
favorites_before: int = 0
favorites_after: int = 0
queue_backup: int = 0
queue_missing: int = 0
queue_before: int = 0
queue_after: int = 0
queue_appended: int = 0
keep_sorted: str = ''
inbox_before: int = 0
inbox_after: int = 0
downloads_backup: int = 0
downloads: int = 0
downloads_bytes: int = 0
downloads_created: int = 0
downloads_missing: int = 0
downloads_offered: bool = True
ignored_left_inbox: int = 0
queue_removed: int = 0
removed_titles: list = field(default_factory=list)
diora_only_left_inbox: int = 0
backup_date: datetime | None = None
seconds: float = 0.0
def _inbox_count(user):
hidden = EpisodeProgress.objects.filter(user=user).filter(Q(played=True) | Q(dismissed=True))
return PodcastEpisode.objects.filter(feed__user=user).exclude(id__in=hidden.values('episode_id')).count()
def _open_backup(path):
uri = Path(path).resolve().as_uri() + '?mode=ro'
db = None
try:
db = sqlite3.connect(uri, uri=True)
tables = {r[0] for r in db.execute("SELECT name FROM sqlite_master WHERE type='table'")}
except sqlite3.DatabaseError as e:
if db is not None:
db.close()
raise AntennaPodImportError(f'{path} is not an SQLite database: {e}')
missing = {'Feeds', 'FeedItems', 'FeedMedia', 'Queue', 'Favorites'} - tables
if missing:
db.close()
raise AntennaPodImportError(
f'{path} is not an AntennaPod backup (missing tables: {", ".join(sorted(missing))})')
return db
def _columns(db, table):
return {r[1] for r in db.execute(f'PRAGMA table_info({table})')}
class AntennaPodImport:
def __init__(self, user, path, backup_date, global_auto_download=False, offer_downloads=True,
quiet_diora_only=False, replace=False):
self.user = user
self.path = path
self.backup_date = backup_date
self.global_auto_download = global_auto_download
# False: the app doesn't offer AntennaPod's downloads (they stay in AntennaPod).
self.offer_downloads = offer_downloads
# True: subscriptions only diora has keep their episodes, but the
# ones out before the backup leave the inbox.
self.quiet_diora_only = quiet_diora_only
# A clean slate: AntennaPod's state is the new start. Podcasts only
# diora has are unsubscribed, the queue is AntennaPod's alone, and
# AntennaPod wins also over later changes in diora.
self.replace = replace
self.stats = Stats(backup_date=backup_date)
def run(self, dry_run=False):
started = time.monotonic()
db = _open_backup(self.path)
try:
with transaction.atomic():
self._run(db)
if dry_run:
transaction.set_rollback(True)
finally:
db.close()
self.stats.seconds = time.monotonic() - started
return self.stats
def _run(self, db):
st = self.stats
user = self.user
st.queue_before = len(_queue_order(user))
st.inbox_before = _inbox_count(user)
st.favorites_before = EpisodeProgress.objects.filter(user=user, favorite=True).count()
# AntennaPod downloads new episodes of every podcast by default: so
# do diora's future subscriptions.
settings = PodcastSettings.for_user(user)
if self.global_auto_download and not settings.auto_download_default:
settings.auto_download_default = True
settings.save(update_fields=['auto_download_default'])
st.auto_download_default_changed = True
st.auto_download_default = settings.auto_download_default
self.new_feed = PodcastSettings.new_feed_defaults(user)
feed_map = self._import_feeds(db) # AntennaPod feed id -> diora feed id
if self.replace:
self._remove_diora_only(feed_map)
queue_items = [r[0] for r in db.execute('SELECT feeditem FROM Queue ORDER BY id')]
favorite_items = {r[0] for r in db.execute('SELECT feeditem FROM Favorites')}
st.queue_backup = len(queue_items)
st.favorites_backup = len(favorite_items)
states, not_new, item_episode, downloads = self._import_episodes(
db, feed_map, set(queue_items), favorite_items)
self._import_progress(states, not_new)
self._quiet_inbox(feed_map, states)
self._import_queue(queue_items, item_episode)
self._import_downloads(settings, downloads, item_episode)
st.queue_after = len(_queue_order(user))
st.inbox_after = _inbox_count(user)
st.favorites_after = EpisodeProgress.objects.filter(user=user, favorite=True).count()
# -- feeds --------------------------------------------------------------
def _import_feeds(self, db):
st = self.stats
have = _columns(db, 'Feeds')
select = ', '.join(c if c in have else f'{default!r} AS {c}' if default is not None else f'NULL AS {c}'
for c, default in FEED_COLUMNS.items())
db.row_factory = sqlite3.Row
try:
rows = db.execute(f'SELECT {select} FROM Feeds ORDER BY id').fetchall()
finally:
db.row_factory = None
st.backup_feeds = len(rows)
mine = {}
for f in PodcastFeed.objects.filter(user=self.user).order_by('id'):
mine.setdefault(normalize_url(f.rss_url) or f.rss_url, f)
feed_map = {} # AntennaPod id -> PodcastFeed (saved or still to create)
to_create = {} # normalised URL -> new PodcastFeed
changed = {} # diora id -> PodcastFeed with changed settings
for ap in rows:
if ap['state'] != SUBSCRIBED:
st.not_subscribed += 1
continue
url = (ap['download_url'] or '').strip()
title = (ap['custom_title'] or ap['title'] or url).strip()
key = normalize_url(url)
if key is None or len(url) > 1000:
st.skipped_feeds.append((title, url))
continue
feed = mine.get(key) or to_create.get(key)
if feed is None:
feed = PodcastFeed(
user=self.user, rss_url=url, title=title[:300], author=(ap['author'] or '')[:300],
link=_web_url(ap['link']), artwork_url=_web_url(ap['image_url']), **self.new_feed,
)
to_create[key] = feed
st.created += 1
st.created_titles.append(feed.title)
elif any(f is feed for f in feed_map.values()):
st.duplicates += 1
elif feed.pk:
st.matched += 1
feed_map[ap['id']] = feed
settings, not_kept_updated = feed_settings(ap, self.global_auto_download)
st.not_kept_updated += not_kept_updated
st.sort_unshown += not episode_sort(ap['sort_order'])[1]
st.filter_unshown += not episode_filter(ap['hide'])[1]
st.auto_download_explicit += ap['auto_download'] == AUTO_DOWNLOAD_ON
st.auto_download_global += ap['auto_download'] == AUTO_DOWNLOAD_GLOBAL
for name, value in settings.items():
if getattr(feed, name) != value:
setattr(feed, name, value)
st.settings[name] += 1
if feed.pk:
changed[feed.pk] = feed
feed.auto_queue = feed.new_episodes == PodcastFeed.NEW_QUEUE
if changed:
PodcastFeed.objects.bulk_update(list(changed.values()), [*SETTING_FIELDS, 'auto_queue'],
batch_size=CHUNK)
if to_create:
# last_refreshed_at stays empty: the next refresh fetches them,
# with the first-fetch rule (only the newest episode is new).
PodcastFeed.objects.bulk_create(list(to_create.values()), batch_size=CHUNK)
ids = {}
for urls in _chunks(f.rss_url for f in to_create.values()):
ids.update(PodcastFeed.objects.filter(user=self.user, rss_url__in=urls).values_list('rss_url', 'id'))
for f in to_create.values():
f.pk = ids[f.rss_url]
st.auto_download_on = sum(1 for f in {id(f): f for f in feed_map.values()}.values() if f.auto_download)
return {ap_id: f.pk for ap_id, f in feed_map.items()}
# -- episodes -----------------------------------------------------------
def _import_episodes(self, db, feed_map, queued, favorites):
"""Match AntennaPod's episodes to diora's, create the missing ones
that have a state (or were downloaded). Returns ({episode id: ItemState}
for those with a state, {episode ids} of matched ones without (not new),
{AntennaPod item id: episode id}, [(pub date ms, AntennaPod item id,
size)] of the downloaded ones)."""
st = self.stats
backup = self.backup_date
states = {}
not_new = set()
item_episode = {}
downloads = []
to_create = {} # (diora feed id, guid) -> [ItemState, AntennaPod item id, audio url, duration, pub_date]
media = _columns(db, 'FeedMedia')
cur = db.execute(
'SELECT i.feed, i.id, i.item_identifier, i.read, i.pubDate, m.download_url, m.duration, '
'm.position, m.last_played_time, m.playback_completion_date, '
+ ('m.downloaded, ' if 'downloaded' in media else '0, ')
+ ('m.filesize ' if 'filesize' in media else '0 ')
+ 'FROM FeedItems i LEFT JOIN FeedMedia m ON m.feeditem = i.id ORDER BY i.feed, i.id'
)
def rows():
while True:
batch = cur.fetchmany(5000)
if not batch:
return
yield from batch
for ap_feed, items in groupby(rows(), key=lambda r: r[0]):
feed_id = feed_map.get(ap_feed)
by_guid = by_url = None
for (_, item_id, ident, read, pub_ms, audio, duration, position, last_played, completed,
downloaded, size) in items:
position = max(int(position or 0), 0) // 1000
activity = max(filter(None, (_ms(last_played), _ms(completed))), default=None)
in_queue = item_id in queued
favorite = item_id in favorites
stateful = read in (NEW, PLAYED) or position > 0 or activity is not None or in_queue or favorite
# FeedMedia.downloaded: when the file was downloaded (ms; 1 from
# older versions), 0 = not on the phone.
downloaded = (downloaded or 0) > 0
if downloaded:
size = int(size or 0)
downloads.append((int(pub_ms or 0), item_id, size if 0 < size <= MAX_FILESIZE else 0))
if feed_id is None:
st.in_skipped_feeds += stateful
continue
if by_guid is None:
by_guid, by_url = {}, {}
for ep_id, guid, url in (PodcastEpisode.objects.filter(feed_id=feed_id)
.order_by('id').values_list('id', 'guid', 'audio_url')):
by_guid.setdefault(guid, ep_id)
by_url.setdefault(normalize_url(url), ep_id)
ident = (ident or '').strip()
audio = (audio or '').strip()
guid = (ident or audio)[:1000]
ep_id = by_guid.get(guid) if guid else None
how = 'guid'
if ep_id is None and audio:
ep_id = by_url.get(normalize_url(audio))
how = 'url'
if not stateful:
if ep_id is not None:
not_new.add(ep_id)
item_episode[item_id] = ep_id
continue
if not downloaded:
continue
# On the phone in AntennaPod but not in diora yet (a feed
# not fetched so far): created as not new, so the app can
# offer to download it again.
else:
st.stateful += 1
played = read == PLAYED
pub_date = _ms(pub_ms)
state = ItemState(
played=played,
# Only AntennaPod's "new" stays in the inbox; queued is never new.
dismissed=read != NEW or in_queue,
position=0 if played else position,
favorite=favorite,
activity=activity,
when=activity or (min(pub_date, backup) if pub_date else backup),
)
if ep_id is not None:
st.by_guid += how == 'guid'
st.by_url += how == 'url'
states[ep_id] = state.merge(states[ep_id]) if ep_id in states else state
item_episode[item_id] = ep_id
continue
if normalize_url(audio) is None or len(audio) > 1000:
st.no_audio += stateful
continue
key = (feed_id, guid)
if key in to_create:
pending = to_create[key]
pending[0] = state.merge(pending[0])
pending[1].append(item_id)
else:
to_create[key] = [state, [item_id], audio, max(int(duration or 0), 0) // 1000, pub_date]
st.downloads_created += not stateful
if to_create:
self._create_episodes(db, to_create, states, item_episode)
not_new -= states.keys()
st.stateless_matched = len(not_new)
return states, not_new, item_episode, downloads
def _create_episodes(self, db, to_create, states, item_episode):
st = self.stats
# A few at a time: shownotes can be large.
for keys in _chunks(to_create, 200):
first_item = {to_create[key][1][0]: key for key in keys}
marks = ','.join('?' * len(first_item))
details = {
first_item[item_id]: (title, description, image)
for item_id, title, description, image in db.execute(
f'SELECT id, title, description, image_url FROM FeedItems WHERE id IN ({marks})',
list(first_item))
}
batch = []
for key in keys:
_, _, audio, duration, pub_date = to_create[key]
title, description, image = details.get(key, ('', '', ''))
batch.append(PodcastEpisode(
feed_id=key[0], guid=key[1], title=(title or 'Untitled')[:500],
description=(description or '')[:MAX_DESCRIPTION], audio_url=audio,
duration_seconds=duration, pub_date=pub_date, artwork_url=_web_url(image),
))
PodcastEpisode.objects.bulk_create(batch)
st.episodes_created = len(to_create) - st.downloads_created
by_feed = {}
for feed_id, guid in to_create:
by_feed.setdefault(feed_id, []).append(guid)
for feed_id, guids in by_feed.items():
for chunk in _chunks(guids):
created = PodcastEpisode.objects.filter(feed_id=feed_id, guid__in=chunk).values_list('guid', 'id')
for guid, ep_id in created:
state, item_ids = to_create[(feed_id, guid)][:2]
states[ep_id] = state
for item_id in item_ids:
item_episode[item_id] = ep_id
# -- progress -----------------------------------------------------------
def _import_progress(self, states, not_new):
st = self.stats
user = self.user
backup = self.backup_date
existing = {}
for ids in _chunks([*states, *not_new]):
for p in EpisodeProgress.objects.filter(user=user, episode_id__in=ids):
existing[p.episode_id] = p
def diora_newer(p, activity):
# Changed in diora after the backup was made (and after the
# episode was last played in AntennaPod): diora's state stays.
return not self.replace and p.updated_at > backup and (activity is None or p.updated_at > activity)
new_rows, changed, favorite_only, dismiss_only = [], [], [], []
for ep_id, s in states.items():
p = existing.get(ep_id)
if p is None:
new_rows.append(EpisodeProgress(
user=user, episode_id=ep_id, position_seconds=s.position, played=s.played,
dismissed=s.dismissed, favorite=s.favorite, updated_at=s.when,
))
st.progress_new += 1
continue
favorite = p.favorite or s.favorite # stars from both
if diora_newer(p, s.activity):
st.progress_kept += 1
if favorite != p.favorite:
favorite_only.append(p.pk)
continue
wanted = (s.position, s.played, s.dismissed, favorite, s.when)
if (p.position_seconds, p.played, p.dismissed, p.favorite, p.updated_at) == wanted:
st.progress_unchanged += 1
continue
p.position_seconds, p.played, p.dismissed, p.favorite, p.updated_at = wanted
changed.append(p)
st.progress_updated += 1
# Known to AntennaPod, but not new there: out of the inbox.
for ep_id in not_new:
p = existing.get(ep_id)
if p is None:
new_rows.append(EpisodeProgress(user=user, episode_id=ep_id, dismissed=True, updated_at=backup))
st.left_inbox += 1
elif not p.played and not p.dismissed and not diora_newer(p, None):
dismiss_only.append(p.pk)
st.left_inbox += 1
with _given_updated_at():
EpisodeProgress.objects.bulk_create(new_rows, batch_size=CHUNK)
# bulk_update writes updated_at as given (no auto_now there).
EpisodeProgress.objects.bulk_update(
changed, ['position_seconds', 'played', 'dismissed', 'favorite', 'updated_at'], batch_size=CHUNK)
# A star or leaving the inbox isn't listening: updated_at stays.
for ids in _chunks(favorite_only):
EpisodeProgress.objects.filter(pk__in=ids).update(favorite=True)
for ids in _chunks(dismiss_only):
EpisodeProgress.objects.filter(pk__in=ids).update(dismissed=True)
def _quiet_inbox(self, feed_map, states):
"""Episodes AntennaPod never showed as new, though diora has them in
the inbox: those of podcasts whose new episodes are ignored (AntennaPod
stopped fetching archived ones, so it never saw them), and with
quiet_diora_only those of podcasts AntennaPod doesn't have. Only ones
out before the backup; AntennaPod's own new ones stay."""
st = self.stats
user = self.user
backup = self.backup_date
imported = set(feed_map.values())
feeds = set(PodcastFeed.objects.filter(pk__in=imported, new_episodes=PodcastFeed.NEW_IGNORE)
.values_list('pk', flat=True))
diora_only = set()
if self.quiet_diora_only:
diora_only = set(PodcastFeed.objects.filter(user=user).exclude(pk__in=imported).values_list('pk', flat=True))
if not feeds and not diora_only:
return
keep = {ep_id for ep_id, s in states.items() if not s.dismissed}
hidden = EpisodeProgress.objects.filter(user=user).filter(Q(played=True) | Q(dismissed=True))
rows = (PodcastEpisode.objects.filter(feed_id__in=feeds | diora_only)
.filter(Q(pub_date__lte=backup) | Q(pub_date__isnull=True))
.exclude(id__in=hidden.values('episode_id'))
.values_list('id', 'feed_id'))
ids = []
for ep_id, feed_id in rows:
if ep_id in keep:
continue
ids.append(ep_id)
if feed_id in feeds:
st.ignored_left_inbox += 1
else:
st.diora_only_left_inbox += 1
# Changed in diora after the backup: diora's state stays.
newer = set()
for chunk in ([] if self.replace else _chunks(ids)):
newer.update(EpisodeProgress.objects.filter(user=user, episode_id__in=chunk, updated_at__gt=backup)
.values_list('episode_id', flat=True))
ids = [i for i in ids if i not in newer]
for chunk in _chunks(ids):
EpisodeProgress.objects.filter(user=user, episode_id__in=chunk, dismissed=False).update(dismissed=True)
have = set(EpisodeProgress.objects.filter(user=user, episode_id__in=chunk)
.values_list('episode_id', flat=True))
with _given_updated_at():
EpisodeProgress.objects.bulk_create(
[EpisodeProgress(user=user, episode_id=i, dismissed=True, updated_at=backup)
for i in chunk if i not in have],
ignore_conflicts=True,
)
def _remove_diora_only(self, feed_map):
"""Unsubscribe the podcasts the backup doesn't have (their episodes,
states and queue entries go with them)."""
st = self.stats
gone = PodcastFeed.objects.filter(user=self.user).exclude(pk__in=set(feed_map.values()))
st.removed_titles = sorted(gone.values_list('title', flat=True))
gone.delete()
# -- queue --------------------------------------------------------------
def _import_queue(self, queue_items, item_episode):
"""AntennaPod's queue first, then what else was in diora's."""
st = self.stats
user = self.user
before = _queue_order(user)
front = []
for item_id in queue_items:
ep_id = item_episode.get(item_id)
if ep_id is None:
st.queue_missing += 1
elif ep_id not in front:
front.append(ep_id)
if not front:
return
in_front = set(front)
rest = [ep_id for ep_id in before if ep_id not in in_front]
if self.replace and rest:
for chunk in _chunks(rest):
PodcastQueue.objects.filter(user=user, episode_id__in=chunk).delete()
st.queue_removed = len(rest)
before = [ep_id for ep_id in before if ep_id in in_front]
rest = []
st.queue_appended = len(rest)
present = set(before)
PodcastQueue.objects.bulk_create(
[PodcastQueue(user=user, episode_id=ep_id, position=len(before) + i)
for i, ep_id in enumerate(e for e in front if e not in present)],
batch_size=CHUNK,
)
_write_queue_order(user, front + rest)
_leave_inbox(user, front) # queued = not new
if _keep_sorted(user):
st.keep_sorted = PodcastSettings.objects.get(user=user).keep_sorted
# -- downloads ----------------------------------------------------------
def _import_downloads(self, settings, downloads, item_episode):
"""The episodes AntennaPod had on the phone, newest first: the app
can't take its files over, so it offers to download them again.
Replaces what an earlier import left."""
st = self.stats
st.downloads_backup = len(downloads)
entries, seen = [], set()
for _, item_id, size in sorted(downloads, key=lambda d: (-d[0], -d[1])):
ep_id = item_episode.get(item_id)
if ep_id is None:
st.downloads_missing += 1
continue
if ep_id in seen:
continue
seen.add(ep_id)
entries.append({'episode_id': ep_id, 'size': size})
st.downloads = len(entries)
st.downloads_bytes = sum(e['size'] for e in entries)
st.downloads_offered = self.offer_downloads
settings.import_downloads = entries if self.offer_downloads else []
settings.save(update_fields=['import_downloads'])
# ---------------------------------------------------------------------------
# Summary
# ---------------------------------------------------------------------------
SETTING_LABELS = {
'playback_speed': 'speed', 'skip_intro': 'skip intro', 'skip_outro': 'skip outro', 'volume': 'volume',
'include_words': 'include words', 'exclude_words': 'exclude words', 'min_duration': 'min duration',
'new_episodes': 'new episodes', 'auto_download': 'auto-download', 'notify': 'notifications',
'episode_sort': 'episode order', 'episode_filter': 'episode filter', 'skip_silence': 'skip silence',
}
def _on(flag):
return 'on' if flag else 'off'
def summary_lines(st, username, path, dry_run, global_auto_download):
when = st.backup_date.strftime('%Y-%m-%d %H:%M UTC') if st.backup_date else '?'
subscribed = st.backup_feeds - st.not_subscribed
settings = ', '.join(f'{SETTING_LABELS[k]} {v}' for k, v in st.settings.items())
lines = [
f"AntennaPod import for user '{username}' from {Path(path).name} (backup date {when})"
+ (' -- DRY RUN, nothing was written' if dry_run else ''),
f'Feeds: {st.backup_feeds} in backup, {subscribed} subscribed ({st.not_subscribed} not subscribed '
f'ignored); {st.matched} matched, {st.created} created, {len(st.skipped_feeds)} skipped (not http/https), '
f'{st.duplicates} duplicates'
+ (f', {len(st.removed_titles)} only in diora unsubscribed (--replace)' if st.removed_titles else ''),
f'Settings: changed: {settings}',
f' {st.not_kept_updated} feeds not kept updated in AntennaPod -> new episodes "ignore"',
f' episode lists diora can\'t show that way (left as they are): {st.sort_unshown} orders, '
f'{st.filter_unshown} filters',
f'Auto-download: on for {st.auto_download_on} feeds ({st.auto_download_explicit} on in AntennaPod, '
f"{st.auto_download_global} use AntennaPod's global setting -> {_on(global_auto_download)} "
f'by --global-auto-download); default for new subscriptions: {_on(st.auto_download_default)}'
+ (' (set by this import)' if st.auto_download_default_changed else ''),
f'Episodes: {st.stateful} with a state: {st.by_guid} matched by guid, {st.by_url} by URL, '
f'{st.episodes_created} created, {st.no_audio} skipped (no audio URL), {st.in_skipped_feeds} in skipped feeds',
f' {st.stateless_matched} without a state matched to diora episodes (not new in AntennaPod)',
f'Progress: {st.progress_new} new, {st.progress_updated} updated, '
f'{st.progress_unchanged} unchanged, {st.progress_kept} kept (diora newer); '
f'{st.left_inbox} taken out of the inbox (not new in AntennaPod)',
f'Favourites: {st.favorites_backup} in backup; {st.favorites_before} before, {st.favorites_after} after',
f'Queue: {st.queue_backup} in backup ({st.queue_missing} not found); {st.queue_before} before, '
f'{st.queue_after} after ({st.queue_appended} diora entries after AntennaPod\'s'
+ (f', {st.queue_removed} removed (--replace)' if st.queue_removed else '') + ')'
+ (f'; kept sorted by "{st.keep_sorted}"' if st.keep_sorted else ''),
f'Inbox: {st.inbox_before} before, {st.inbox_after} after; out of it: {st.ignored_left_inbox} of podcasts '
f'whose new episodes are ignored (AntennaPod never showed them)'
+ (f', {st.diora_only_left_inbox} of podcasts only diora has' if st.diora_only_left_inbox else ''),
f'Downloads: {st.downloads} on the phone in AntennaPod ({st.downloads_bytes / 1_000_000:.0f} MB) '
+ ('-> offered to the app for download' if st.downloads_offered else '-> not offered (--no-downloads)')
+ (f' ({st.downloads_created} episodes created for them)' if st.downloads_created else '')
+ (f'; {st.downloads_missing} not found (feeds not imported, no audio URL)' if st.downloads_missing else ''),
f'Created feeds ({len(st.created_titles)}):',
*(f' - {t}' for t in st.created_titles),
*([f'Unsubscribed feeds ({len(st.removed_titles)}):'] if st.removed_titles else []),
*(f' - {t}' for t in st.removed_titles),
f'Skipped feeds ({len(st.skipped_feeds)}):',
*(f' - {t} ({u})' for t, u in st.skipped_feeds),
f'Done in {st.seconds:.1f} s.',
]
return lines