70 lines
2.6 KiB
Python
70 lines
2.6 KiB
Python
import logging
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import requests
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from ftplib import FTP, FTP_TLS
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from io import StringIO
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from django.db import models
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logger = logging.getLogger(__name__)
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class Target(models.Model):
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name = models.CharField(max_length=30)
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host = models.CharField(max_length=60)
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pw = models.CharField(max_length=30)
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user = models.CharField(max_length=30)
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protocol = models.CharField(max_length=10, default='ftp')
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formats = models.ManyToManyField('Format', related_name='targets')
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def __str__(self):
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return self.name
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def get_ftp(self):
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if self.protocol == 'secure':
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_ftp = FTP_TLS(self.host, self.user, self.pw)
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_ftp.prot_p()
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else:
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_ftp = FTP(self.host, self.user, self.pw)
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return _ftp
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def push(self, book, new=False):
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pushed_formats = []
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pushed_isbns = set()
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for ebook in book.ebooks():
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isbn = ebook.edition.isbn_13 if ebook.edition.isbn_13 else book.first_isbn_13()
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if isbn and self.formats.filter(name=ebook.format).exists() and ebook.format not in pushed_formats:
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dont_push = new and Deposit.objects.filter(isbn=isbn, target=self, format=ebook.format).exists()
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if not dont_push:
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ebfile = ebook.get_archive()
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if ebfile:
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self.push_file(u'{}.{}'.format(isbn,ebook.format), ebfile)
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ebfile.close()
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pushed_formats.append(ebook.format)
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pushed_isbns.add(isbn)
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Deposit.objects.create(target=self, isbn=isbn, format=ebook.format)
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else:
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logger.error('no file available for ebook {}'.format(ebook.id))
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if pushed_isbns:
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cover = book.cover_image_large()
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if cover:
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r = requests.get(cover)
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for isbn in pushed_isbns:
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self.push_file(u'{}.{}'.format(isbn,'jpg'), StringIO(r.content))
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else:
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logger.error('no cover available for {}'.format(book))
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return pushed_isbns
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def push_file(self, filename, file_to_push):
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self.get_ftp().storbinary(u'STOR {}'.format(filename), file_to_push)
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class Deposit(models.Model):
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target = models.ForeignKey(Target, on_delete=models.CASCADE, related_name="deposits")
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isbn = models.CharField(max_length=13)
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format = models.CharField(max_length=30)
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updated = models.DateTimeField(auto_now_add=True)
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class Format(models.Model):
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name = models.CharField(max_length=4)
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def __str__(self):
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return self.name
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