forked from mirrors/bookwyrm
129 lines
4 KiB
Python
129 lines
4 KiB
Python
''' using another fedireads instance as a source of book data '''
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from datetime import datetime
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from django.core.exceptions import ObjectDoesNotExist
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from django.core.files.base import ContentFile
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import requests
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from fedireads import models
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from .abstract_connector import AbstractConnector, update_from_mappings
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class Connector(AbstractConnector):
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''' instantiate a connector '''
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def __init__(self, identifier):
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super().__init__(identifier)
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def search(self, query):
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''' right now you can't search fedireads, but... '''
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resp = requests.get(
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'%s%s' % (self.search_url, query),
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headers={
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'Accept': 'application/activity+json; charset=utf-8',
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},
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)
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if not resp.ok:
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resp.raise_for_status()
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return resp.json()
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def get_or_create_book(self, fedireads_key):
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''' pull up a book record by whatever means possible '''
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try:
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book = models.Book.objects.select_subclasses().get(
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fedireads_key=fedireads_key
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)
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return book
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except ObjectDoesNotExist:
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if self.model.is_self:
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# we can't load a book from a remote server, this is it
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return None
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# no book was found, so we start creating a new one
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book = models.Book(fedireads_key=fedireads_key)
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def update_book(self, book):
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''' add remote data to a local book '''
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fedireads_key = book.fedireads_key
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response = requests.get(
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'%s/%s' % (self.base_url, fedireads_key),
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headers={
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'Accept': 'application/activity+json; charset=utf-8',
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},
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)
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if not response.ok:
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response.raise_for_status()
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data = response.json()
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# great, we can update our book.
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mappings = {
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'published_date': ('published_date', get_date),
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'first_published_date': ('first_published_date', get_date),
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}
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book = update_from_mappings(book, data, mappings)
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if not book.source_url:
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book.source_url = response.url
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if not book.connector:
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book.connector = self.connector
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book.save()
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if data.get('parent_work'):
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work = self.get_or_create_book(data.get('parent_work'))
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book.parent_work = work
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for author_blob in data.get('authors', []):
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author_blob = author_blob.get('author', author_blob)
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author_id = author_blob['key']
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author_id = author_id.split('/')[-1]
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book.authors.add(self.get_or_create_author(author_id))
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if book.sync_cover and data.get('covers') and len(data['covers']):
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book.cover.save(*self.get_cover(data['covers'][0]), save=True)
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return book
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def get_or_create_author(self, fedireads_key):
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''' load that author '''
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try:
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return models.Author.objects.get(fedireads_key=fedireads_key)
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except ObjectDoesNotExist:
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pass
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resp = requests.get('%s/authors/%s.json' % (self.url, fedireads_key))
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if not resp.ok:
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resp.raise_for_status()
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data = resp.json()
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# ingest a new author
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author = models.Author(fedireads_key=fedireads_key)
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mappings = {
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'born': ('born', get_date),
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'died': ('died', get_date),
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}
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author = update_from_mappings(author, data, mappings)
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author.save()
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return author
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def get_cover(self, cover_url):
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''' ask openlibrary for the cover '''
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image_name = cover_url.split('/')[-1]
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response = requests.get(cover_url)
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if not response.ok:
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response.raise_for_status()
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image_content = ContentFile(response.content)
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return [image_name, image_content]
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def get_date(date_string):
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''' helper function to try to interpret dates '''
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try:
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datetime.strptime(date_string, "%Y-%m-%dT%H:%M:%S")
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except ValueError:
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return False
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