forked from mirrors/bookwyrm
121 lines
3.9 KiB
Python
121 lines
3.9 KiB
Python
''' interface with whatever connectors the app has '''
|
|
import importlib
|
|
import re
|
|
from urllib.parse import urlparse
|
|
|
|
from requests import HTTPError
|
|
|
|
from bookwyrm import models
|
|
from bookwyrm.tasks import app
|
|
|
|
|
|
class ConnectorException(HTTPError):
|
|
''' when the connector can't do what was asked '''
|
|
|
|
|
|
def search(query, min_confidence=0.1):
|
|
''' find books based on arbitary keywords '''
|
|
results = []
|
|
|
|
# Have we got a ISBN ?
|
|
isbn = re.sub('[\W_]', '', query)
|
|
maybe_isbn = len(isbn) in [10, 13] # ISBN10 or ISBN13
|
|
|
|
dedup_slug = lambda r: '%s/%s/%s' % (r.title, r.author, r.year)
|
|
result_index = set()
|
|
for connector in get_connectors():
|
|
result_set = None
|
|
if maybe_isbn:
|
|
# Search on ISBN
|
|
if not connector.isbn_search_url or connector.isbn_search_url == '':
|
|
result_set = []
|
|
else:
|
|
try:
|
|
result_set = connector.isbn_search(isbn)
|
|
except (HTTPError, ConnectorException):
|
|
pass
|
|
|
|
# if no isbn search or results, we fallback to generic search
|
|
if result_set == None or result_set == []:
|
|
try:
|
|
result_set = connector.search(query, min_confidence=min_confidence)
|
|
except (HTTPError, ConnectorException):
|
|
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, min_confidence=0.1, raw=False):
|
|
''' only look at local search results '''
|
|
connector = load_connector(models.Connector.objects.get(local=True))
|
|
return connector.search(query, min_confidence=min_confidence, raw=raw)
|
|
|
|
|
|
def isbn_local_search(query, raw=False):
|
|
''' only look at local search results '''
|
|
connector = load_connector(models.Connector.objects.get(local=True))
|
|
return connector.isbn_search(query, raw=raw)
|
|
|
|
|
|
def first_search_result(query, min_confidence=0.1):
|
|
''' search until you find a result that fits '''
|
|
for connector in get_connectors():
|
|
result = connector.search(query, min_confidence=min_confidence)
|
|
if result:
|
|
return result[0]
|
|
return None
|
|
|
|
|
|
def get_connectors():
|
|
''' load all connectors '''
|
|
for info in models.Connector.objects.order_by('priority').all():
|
|
yield load_connector(info)
|
|
|
|
|
|
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='bookwyrm_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,
|
|
priority=2
|
|
)
|
|
|
|
return load_connector(connector_info)
|
|
|
|
|
|
@app.task
|
|
def load_more_data(connector_id, book_id):
|
|
''' background the work of getting all 10,000 editions of LoTR '''
|
|
connector_info = models.Connector.objects.get(id=connector_id)
|
|
connector = load_connector(connector_info)
|
|
book = models.Book.objects.select_subclasses().get(id=book_id)
|
|
connector.expand_book_data(book)
|
|
|
|
|
|
def load_connector(connector_info):
|
|
''' instantiate the connector class '''
|
|
connector = importlib.import_module(
|
|
'bookwyrm.connectors.%s' % connector_info.connector_file
|
|
)
|
|
return connector.Connector(connector_info.identifier)
|