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A spot of refactoring
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Kovid Goyal
parent
2b562831d7
commit
f1484411af
@ -20,91 +20,100 @@ from calibre.utils.opensearch.description import Description
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from calibre.utils.opensearch.query import Query
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def search_manybooks(query, max_results=10, timeout=60, open_search_url='http://www.manybooks.net/opds/'):
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'''
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Manybooks uses a very strange opds feed. The opds
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main feed is structured like a stanza feed. The
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search result entries give very little information
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and requires you to go to a detail link. The detail
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link has the wrong type specified (text/html instead
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of application/atom+xml).
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'''
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description = Description(open_search_url)
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url_template = description.get_best_template()
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if not url_template:
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return
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oquery = Query(url_template)
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# set up initial values
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oquery.searchTerms = query
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oquery.count = max_results
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url = oquery.url()
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counter = max_results
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br = browser()
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with closing(br.open(url, timeout=timeout)) as f:
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raw_data = f.read()
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raw_data = raw_data.decode('utf-8', 'replace')
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doc = etree.fromstring(raw_data)
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for data in doc.xpath('//*[local-name() = "entry"]'):
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if counter <= 0:
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break
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counter -= 1
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s = SearchResult()
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detail_links = data.xpath('./*[local-name() = "link" and @type = "text/html"]')
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if not detail_links:
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continue
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detail_link = detail_links[0]
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detail_href = detail_link.get('href')
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if not detail_href:
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continue
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s.detail_item = 'http://manybooks.net/titles/' + detail_href.split('tid=')[-1] + '.html'
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# These can have HTML inside of them. We are going to get them again later
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# just in case.
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s.title = ''.join(data.xpath('./*[local-name() = "title"]//text()')).strip()
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s.author = ', '.join(data.xpath('./*[local-name() = "author"]//text()')).strip()
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# Follow the detail link to get the rest of the info.
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with closing(br.open(detail_href, timeout=timeout/4)) as df:
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ddoc = etree.fromstring(df.read())
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ddata = ddoc.xpath('//*[local-name() = "entry"][1]')
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if ddata:
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ddata = ddata[0]
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# This is the real title and author info we want. We got
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# it previously just in case it's not specified here for some reason.
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s.title = ''.join(ddata.xpath('./*[local-name() = "title"]//text()')).strip()
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s.author = ', '.join(ddata.xpath('./*[local-name() = "author"]//text()')).strip()
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if s.author.startswith(','):
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s.author = s.author[1:]
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if s.author.endswith(','):
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s.author = s.author[:-1]
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s.cover_url = ''.join(ddata.xpath('./*[local-name() = "link" and @rel = "http://opds-spec.org/thumbnail"][1]/@href')).strip()
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for link in ddata.xpath('./*[local-name() = "link" and @rel = "http://opds-spec.org/acquisition"]'):
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type = link.get('type')
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href = link.get('href')
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if type:
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ext = mimetypes.guess_extension(type)
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if ext:
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ext = ext[1:].upper().strip()
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s.downloads[ext] = href
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s.price = '$0.00'
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s.drm = SearchResult.DRM_UNLOCKED
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s.formats = 'EPUB, PDB (eReader, PalmDoc, zTXT, Plucker, iSilo), FB2, ZIP, AZW, MOBI, PRC, LIT, PKG, PDF, TXT, RB, RTF, LRF, TCR, JAR'
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yield s
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class ManyBooksStore(BasicStoreConfig, OpenSearchOPDSStore):
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open_search_url = 'http://www.manybooks.net/opds/'
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web_url = 'http://manybooks.net'
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def search(self, query, max_results=10, timeout=60):
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'''
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Manybooks uses a very strange opds feed. The opds
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main feed is structured like a stanza feed. The
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search result entries give very little information
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and requires you to go to a detail link. The detail
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link has the wrong type specified (text/html instead
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of application/atom+xml).
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'''
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if not hasattr(self, 'open_search_url'):
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return
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for r in search_manybooks(query, max_results=max_results, timeout=timeout, open_search_url=self.open_search_url):
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yield r
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description = Description(self.open_search_url)
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url_template = description.get_best_template()
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if not url_template:
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return
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oquery = Query(url_template)
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# set up initial values
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oquery.searchTerms = query
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oquery.count = max_results
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url = oquery.url()
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counter = max_results
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br = browser()
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with closing(br.open(url, timeout=timeout)) as f:
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raw_data = f.read()
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raw_data = raw_data.decode('utf-8', 'replace')
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doc = etree.fromstring(raw_data)
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for data in doc.xpath('//*[local-name() = "entry"]'):
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if counter <= 0:
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break
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counter -= 1
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s = SearchResult()
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detail_links = data.xpath('./*[local-name() = "link" and @type = "text/html"]')
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if not detail_links:
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continue
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detail_link = detail_links[0]
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detail_href = detail_link.get('href')
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if not detail_href:
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continue
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s.detail_item = 'http://manybooks.net/titles/' + detail_href.split('tid=')[-1] + '.html'
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# These can have HTML inside of them. We are going to get them again later
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# just in case.
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s.title = ''.join(data.xpath('./*[local-name() = "title"]//text()')).strip()
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s.author = ', '.join(data.xpath('./*[local-name() = "author"]//text()')).strip()
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# Follow the detail link to get the rest of the info.
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with closing(br.open(detail_href, timeout=timeout/4)) as df:
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ddoc = etree.fromstring(df.read())
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ddata = ddoc.xpath('//*[local-name() = "entry"][1]')
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if ddata:
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ddata = ddata[0]
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# This is the real title and author info we want. We got
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# it previously just in case it's not specified here for some reason.
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s.title = ''.join(ddata.xpath('./*[local-name() = "title"]//text()')).strip()
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s.author = ', '.join(ddata.xpath('./*[local-name() = "author"]//text()')).strip()
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if s.author.startswith(','):
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s.author = s.author[1:]
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if s.author.endswith(','):
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s.author = s.author[:-1]
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s.cover_url = ''.join(ddata.xpath('./*[local-name() = "link" and @rel = "http://opds-spec.org/thumbnail"][1]/@href')).strip()
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for link in ddata.xpath('./*[local-name() = "link" and @rel = "http://opds-spec.org/acquisition"]'):
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type = link.get('type')
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href = link.get('href')
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if type:
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ext = mimetypes.guess_extension(type)
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if ext:
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ext = ext[1:].upper().strip()
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s.downloads[ext] = href
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s.price = '$0.00'
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s.drm = SearchResult.DRM_UNLOCKED
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s.formats = 'EPUB, PDB (eReader, PalmDoc, zTXT, Plucker, iSilo), FB2, ZIP, AZW, MOBI, PRC, LIT, PKG, PDF, TXT, RB, RTF, LRF, TCR, JAR'
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yield s
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if __name__ == '__main__':
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import sys
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for result in search_manybooks(' '.join(sys.argv[1:])):
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print (result)
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