import six from pelican import signals from pelican.contents import Article, Page from pelican.generators import ArticlesGenerator from bs4 import BeautifulSoup def images_extraction(instance): representativeImage = None if type(instance) in (Article, Page): if 'image' in instance.metadata: representativeImage = instance.metadata['image'] # Process Summary: # If summary contains images, extract one to be the representativeImage and remove images from summary soup = BeautifulSoup(instance.summary, 'html.parser') images = soup.find_all('img') for i in images: if not representativeImage: representativeImage = i['src'] i.extract() if len(images) > 0: # set _summary field which is based on metadata. summary field is only based on article's content and not settable instance._summary = six.text_type(soup) # If there are no image in summary, look for it in the content body if not representativeImage: soup = BeautifulSoup(instance._content, 'html.parser') imageTag = soup.find('img') if imageTag: representativeImage = imageTag['src'] # Set the attribute to content instance instance.featured_image = representativeImage def run_plugin(generators): for generator in generators: if isinstance(generator, ArticlesGenerator): for article in generator.articles: images_extraction(article) def register(): try: signals.all_generators_finalized.connect(run_plugin) except AttributeError: # NOTE: This results in #314 so shouldn't really be relied on # https://github.com/getpelican/pelican-plugins/issues/314 signals.content_object_init.connect(images_extraction)