mirror of
https://github.com/bookwyrm-social/bookwyrm.git
synced 2024-07-02 03:35:51 +00:00
152 lines
4.5 KiB
Python
152 lines
4.5 KiB
Python
''' select and call a connector for whatever book task needs doing '''
|
|
from requests import HTTPError
|
|
|
|
import importlib
|
|
from urllib.parse import urlparse
|
|
|
|
from fedireads import models
|
|
from fedireads.tasks import app
|
|
|
|
|
|
def get_or_create_book(value, key='id', connector_id=None):
|
|
''' pull up a book record by whatever means possible '''
|
|
try:
|
|
book = models.Book.objects.select_subclasses().get(**{key: value})
|
|
return book
|
|
except models.Book.DoesNotExist:
|
|
pass
|
|
|
|
if key == 'remote_id':
|
|
book = get_by_absolute_id(value, models.Book)
|
|
if book:
|
|
return book
|
|
|
|
if connector_id:
|
|
connector_info = models.Connector.objects.get(id=connector_id)
|
|
connector = load_connector(connector_info)
|
|
else:
|
|
connector = get_or_create_connector(value)
|
|
|
|
book = connector.get_or_create_book(value)
|
|
load_more_data.delay(book.id)
|
|
return book
|
|
|
|
|
|
def get_or_create_connector(remote_id):
|
|
''' get the connector related to the author's server '''
|
|
url = urlparse(remote_id)
|
|
identifier = url.netloc
|
|
if not identifier:
|
|
raise ValueError('Invalid remote id')
|
|
|
|
try:
|
|
connector_info = models.Connector.objects.get(identifier=identifier)
|
|
except models.Connector.DoesNotExist:
|
|
connector_info = models.Connector.objects.create(
|
|
identifier=identifier,
|
|
connector_file='fedireads_connector',
|
|
base_url='https://%s' % identifier,
|
|
books_url='https://%s/book' % identifier,
|
|
covers_url='https://%s/images/covers' % identifier,
|
|
search_url='https://%s/search?q=' % identifier,
|
|
key_name='remote_id',
|
|
priority=3
|
|
)
|
|
|
|
return load_connector(connector_info)
|
|
|
|
|
|
def get_by_absolute_id(absolute_id, model):
|
|
''' generalized function to get from a model with a remote_id field '''
|
|
if not absolute_id:
|
|
return None
|
|
|
|
# check if it's a remote status
|
|
try:
|
|
return model.objects.get(remote_id=absolute_id)
|
|
except model.DoesNotExist:
|
|
pass
|
|
|
|
# try finding a local status with that id
|
|
local_id = absolute_id.split('/')[-1]
|
|
try:
|
|
if hasattr(model.objects, 'select_subclasses'):
|
|
possible_match = model.objects.select_subclasses().get(id=local_id)
|
|
else:
|
|
possible_match = model.objects.get(id=local_id)
|
|
except model.DoesNotExist:
|
|
return None
|
|
|
|
# make sure it's not actually a remote status with an id that
|
|
# clashes with a local id
|
|
if possible_match.absolute_id == absolute_id:
|
|
return possible_match
|
|
return None
|
|
|
|
|
|
@app.task
|
|
def load_more_data(book_id):
|
|
''' background the work of getting all 10,000 editions of LoTR '''
|
|
book = models.Book.objects.select_subclasses().get(id=book_id)
|
|
connector = load_connector(book.connector)
|
|
connector.expand_book_data(book)
|
|
|
|
|
|
def search(query):
|
|
''' find books based on arbitary keywords '''
|
|
results = []
|
|
dedup_slug = lambda r: '%s/%s/%s' % (r.title, r.author, r.year)
|
|
result_index = set()
|
|
for connector in get_connectors():
|
|
try:
|
|
result_set = connector.search(query)
|
|
except HTTPError:
|
|
continue
|
|
|
|
result_set = [r for r in result_set \
|
|
if dedup_slug(r) not in result_index]
|
|
# `|=` concats two sets. WE ARE GETTING FANCY HERE
|
|
result_index |= set(dedup_slug(r) for r in result_set)
|
|
results.append({
|
|
'connector': connector,
|
|
'results': result_set,
|
|
})
|
|
|
|
return results
|
|
|
|
|
|
def local_search(query):
|
|
''' only look at local search results '''
|
|
connector = load_connector(models.Connector.objects.get(local=True))
|
|
return connector.search(query)
|
|
|
|
|
|
|
|
def first_search_result(query):
|
|
''' search until you find a result that fits '''
|
|
for connector in get_connectors():
|
|
result = connector.search(query)
|
|
if result:
|
|
return result[0]
|
|
return None
|
|
|
|
|
|
def update_book(book, data=None):
|
|
''' re-sync with the original data source '''
|
|
connector = load_connector(book.connector)
|
|
connector.update_book(book, data=data)
|
|
|
|
|
|
def get_connectors():
|
|
''' load all connectors '''
|
|
connectors_info = models.Connector.objects.order_by('priority').all()
|
|
return [load_connector(c) for c in connectors_info]
|
|
|
|
|
|
def load_connector(connector_info):
|
|
''' instantiate the connector class '''
|
|
connector = importlib.import_module(
|
|
'fedireads.connectors.%s' % connector_info.connector_file
|
|
)
|
|
return connector.Connector(connector_info.identifier)
|