Small fixes and author merging

sok/management/commands/dblpimport.py

@@ -166,7 +166,7 @@ class PublicationResult:
 
 		url = f"https://dblp.uni-trier.de/rec/{key}.xml"
 		response = requests.get(url)
-		response.raise_for_status
+		response.raise_for_status()
 
 		parser = xml.sax.make_parser()
 		handler = DBLPHandler({key})
@@ -223,10 +223,10 @@ class PublicationResult:
 				'format': 'json',
 			},
 		)
-		response.raise_for_status
+		response.raise_for_status()
 		search_result = response.json()['result']
 		hits = search_result['hits']
-		if hits['@total'] == '0': return (None, None, 0)
+		if hits['@total'] == '0' or hits['@sent'] == '0': return (None, None, 0)
 		results = [cls.from_search_hit(hit) for hit in hits['hit']]
 
 		total = hits['@total']

sok/management/commands/repair.py

@@ -2,9 +2,12 @@ from pprint import pprint
 from time import sleep
 from tqdm import tqdm
 
+import re, requests, html
+
 from django.db import transaction
 from django.core.exceptions import ValidationError
 from django.core.management.base import BaseCommand, CommandError, CommandParser
+from django.db.models import Count
 
 from typing import List, Optional, Tuple
 
@@ -216,6 +219,133 @@ class Command(BaseCommand):
 
 			sleep(2)  # Throttle to avoid rate-limiting
 
+	def find_author_on_dblp(
+		self,
+		name: str,
+		limit: int = 100,
+		) -> List[Tuple[str, str]]:
+		url = 'http://dblp.org/search/author/api'
+		response = requests.get(
+			url,
+			params={
+				'q': name,
+				'f': 0,
+				'h': limit,
+				'c': 0,
+				'format': 'json',
+			},
+		)
+		response.raise_for_status()
+		search_result = response.json()['result']
+		hits = search_result['hits']
+		if hits['@total'] == '0': return None
+		results = [hit['info'] for hit in hits['hit']]
+
+		return results
+
+	def verify_author(self, pid, keys):
+		url = f"https://dblp.org/pid/{pid}.xml"
+		response = requests.get(url)
+		response.raise_for_status()
+		pubs = re.findall('key="([^"]*)"', str(response.content))
+		sleep(1)  # Throttle to avoid rate-limiting
+		return keys.intersection(pubs) == keys
+
+	def find_pid_for_authors(self):
+		self.log_info("--- Adding ID's to authors ---")
+		authors = Author.objects.filter(dblp_id__exact="")
+		for author in tqdm(authors, unit='author'):
+			pid = ""
+			keys = set({
+				dblp.strip_cite_key_prefix(cite_key)
+				for cite_key in PublicationAuthor.objects.filter(
+					author__exact=author,
+					publication__cite_key__startswith=dblp.CITE_KEY_PREFIX
+				).values_list('publication__cite_key', flat=True).distinct()}
+			)
+			if len(keys) == 0: continue
+			options = self.find_author_on_dblp(author.name)
+			if not options:
+				self.log_warn(f"Could not find ID for author {author}")
+			elif len(options) == 1:
+				pid = re.match('https://dblp.org/pid/(.*)', options[0]['url']).groups()[0]
+				if self.verify_author(pid, keys):
+					self.log_success(f"Found {pid} for author {author}")
+					author.dblp_id = pid
+					author.full_clean()
+					author.save()
+					self.log_success(f"Added pid for author {author}")
+			else:
+				for opt in options:
+					if not 'url' in opt: continue
+					pid = re.match('https://dblp.org/pid/(.*)', opt['url']).groups()[0]
+					if self.verify_author(pid, keys):
+						self.log_success(f"Found {pid} for author {author}")
+						author.dblp_id = pid
+						author.full_clean()
+						author.save()
+						self.log_success(f"Added pid for author {author}")
+						break
+
+	@transaction.atomic
+	def merge(self, author, variant):
+		for pub_author in PublicationAuthor.objects.filter(author=variant):
+			publication = pub_author.publication
+			if PublicationAuthor.objects.filter(author=author, publication=publication).exists():
+				self.log_warn(f"{author} is already author of {publication}")
+				break
+			fixed = PublicationAuthor(
+				author=author,
+				publication=publication,
+				position=pub_author.position
+			)
+			try:
+				pub_author.delete()
+				fixed.full_clean()
+				fixed.save()
+				self.log_success(f"Changed author: {publication}: {variant} -> {fixed.author}")
+			except ValidationError as e:
+				raise CommandError(f"{publication}: {variant} -> {fixed.author}: {e}")
+		assert not PublicationAuthor.objects.filter(author=variant).exists()
+		variant.delete()
+
+
+
+	def merge_authors(self) -> None:
+		self.log_info("--- Searching for potential duplicate authors and merging their publications ---")
+
+		dup_ids = Author.objects.exclude(dblp_id__exact="").values_list('dblp_id').annotate(count=Count('id')).filter(count__gt=1)
+
+		try:
+			for (pid, counter) in tqdm(dup_ids, unit="duplicate"):
+
+				response = requests.get(f"https://dblp.org/pid/{pid}.xml")
+				response.raise_for_status()
+				dblp_person = re.search('dblpperson name="([^"]*)"', response.content.decode('ascii')).groups()
+				assert len(dblp_person) == 1
+				dblp_name = html.unescape(dblp_person[0])
+
+				variants = Author.objects.filter(dblp_id__exact=pid).exclude(name__exact=dblp_name)
+				# for v in variants:
+				# 	print(v.name, v.dblp_id)
+				# break
+				orig = Author.objects.filter(dblp_id__exact=pid, name__exact=dblp_name)
+				print(variants, dblp_name, orig)
+				assert len(orig) == 1
+
+				self.log_info(f"Suggestion to merge {', '.join([v.name for v in variants])} into {orig[0]}")
+				
+				while True:
+					self.log_warn("Merge? [Y/n]")
+					choice = input().lower()
+					if choice in {'', 'y', 'yes'}:
+						for variant in variants: self.merge(orig[0], variant)
+						break
+					elif choice in {'', 'n', 'no'}:
+						break
+		except KeyboardInterrupt:
+			raise CommandError("Aborted.")
+
 	# BaseCommand
 	def add_arguments(self, parser: CommandParser):
 		parser.add_argument('-b', '--abstract', action='store_true')
@@ -225,11 +355,13 @@ class Command(BaseCommand):
 
 	def handle(self, *args, **options):
 		self.fix_references()
-		if options['abstract']: self.fix_abstracts()
-		self.find_secondary_on_dblp()
+		if options['secondary']: self.find_secondary_on_dblp()
 		if options['dblp']:
 			self.fix_dblp()
 			self.find_missing_dois()
 			self.find_semanticscholar_ids()
-		if options['authors']: self.fix_authors()
+		if options['authors']:
+			self.find_pid_for_authors()
+			self.merge_authors()
+		if options['abstract']: self.fix_abstracts()