diff options
Diffstat (limited to 'python')
| -rw-r--r-- | python/sandcrawler/html_ingest.py | 128 |
1 files changed, 96 insertions, 32 deletions
diff --git a/python/sandcrawler/html_ingest.py b/python/sandcrawler/html_ingest.py index a8ba0d6..c293a2d 100644 --- a/python/sandcrawler/html_ingest.py +++ b/python/sandcrawler/html_ingest.py @@ -12,18 +12,24 @@ import pydantic from selectolax.parser import HTMLParser from sandcrawler.ia import WaybackClient, CdxApiClient, ResourceResult, cdx_to_dict, fix_transfer_encoding, NoCaptureError, WaybackContentError -from sandcrawler.misc import gen_file_metadata, parse_cdx_datetime, datetime_to_cdx +from sandcrawler.misc import gen_file_metadata, parse_cdx_datetime, datetime_to_cdx, clean_url from sandcrawler.html_metadata import BiblioMetadata, html_extract_resources, html_extract_biblio, load_adblock_rules TRAFILATURA_AGENT = f"trafilatura/{trafilatura.__version__}" def html_extract_body_teixml(doc: bytes) -> dict: - tei_xml = trafilatura.extract(doc, - tei_output=True, - include_comments=False, - include_formatting=True, - ) + try: + tei_xml = trafilatura.extract(doc, + tei_output=True, + include_comments=False, + include_formatting=True, + ) + except ValueError as ve: + return dict( + status="parse-error", + error_msg=str(ve)[:1000], + ) if tei_xml: body_txt = teixml_body_text(tei_xml) word_count = len(body_txt.split()) @@ -125,7 +131,7 @@ def quick_fetch_html_resources(resources: List[dict], cdx_client: CdxApiClient, cdx_row = cdx_client.lookup_best(resource['url'], closest=closest) if not cdx_row: raise NoCaptureError(f"HTML sub-resource not found: {resource['url']}") - if cdx_row.url != resource['url']: + if cdx_row.url != resource['url'] and not url_fuzzy_equal(cdx_row.url, resource['url']): print(f" WARN: CDX fuzzy match: {cdx_row.url} != {resource['url']}", file=sys.stderr) if not cdx_row.status_code: # TODO: fall back to a full fetch? @@ -179,8 +185,8 @@ def fetch_html_resources(resources: List[dict], wayback_client: WaybackClient, w def html_guess_platform(url: str, doc: HTMLParser, biblio: Optional[BiblioMetadata]) -> Optional[str]: + generator: Optional[str] = None - platform: Optional[str] = None generator_elem = doc.css_first("meta[name='generator']") if generator_elem: generator = generator_elem.attrs['content'] @@ -189,16 +195,49 @@ def html_guess_platform(url: str, doc: HTMLParser, biblio: Optional[BiblioMetada if generator_elem: generator = generator_elem.text() if generator and "open journal systems 3" in generator.lower(): - platform = "ojs3" + return "ojs3" elif generator and "open journal systems" in generator.lower(): - platform = "ojs" - elif 'powered by <a target="blank" href="http://pkp.sfu.ca/ojs/">PKP OJS</a>' in doc.html: - platform = "ojs" + return "ojs" + elif generator and "plone" in generator.lower(): + return "plone" elif doc.css_first("body[id='pkp-common-openJournalSystems']"): - platform = "ojs" - print(f" HTML platform: {platform} generator: {generator}", file=sys.stderr) - return platform + return "ojs" + else: + try: + if 'powered by <a target="blank" href="http://pkp.sfu.ca/ojs/">PKP OJS</a>' in doc.html: + return "ojs" + except UnicodeDecodeError: + pass + + icon_elem = doc.css_first("link[type='image/x-icon']") + if icon_elem and 'href' in icon_elem.attrs: + if 'journalssystem.com' in icon_elem.attrs['href']: + return "journalssystem.com" + elif 'indexcopernicus.com' in icon_elem.attrs['href']: + return "indexcopernicus" + if 'scielo' in url: + return "scielo" + + return None + + +def url_fuzzy_equal(left: str, right: str) -> bool: + """ + TODO: use proper surt library and canonicalization for this check + """ + fuzzy_left = '://'.join(clean_url(left).replace('www.', '').replace(':80/', '/').split('://')[1:]) + fuzzy_right = '://'.join(clean_url(right).replace('www.', '').replace(':80/', '/').split('://')[1:]) + if fuzzy_left == fuzzy_right: + return True + elif fuzzy_left == fuzzy_right + "/" or fuzzy_right == fuzzy_left + "/": + return True + return False + +def test_url_fuzzy_equal() -> None: + assert True == url_fuzzy_equal( + "http://www.annalsofian.org/article.asp?issn=0972-2327;year=2014;volume=17;issue=4;spage=463;epage=465;aulast=Nithyashree", + "http://annalsofian.org/article.asp?issn=0972-2327;year=2014;volume=17;issue=4;spage=463;epage=465;aulast=Nithyashree") def html_guess_scope(url: str, doc: HTMLParser, biblio: Optional[BiblioMetadata], word_count: Optional[int]) -> str: """ @@ -211,9 +250,10 @@ def html_guess_scope(url: str, doc: HTMLParser, biblio: Optional[BiblioMetadata] - component - issue-fulltext - landingpage - - paywall - - loginwall - - blockpage + - blocked-paywall + - blocked-login + - blocked-captcha + - blocked-cookie - errorpage - stub - other @@ -221,11 +261,16 @@ def html_guess_scope(url: str, doc: HTMLParser, biblio: Optional[BiblioMetadata] Unknown implies the page could be anything. "other" implies it is not fulltext or a landing page, but could be one of the other categories. + + TODO: known javascript-heavy single-page-app: + - https://riojournal.com/article/35913/ + - https://phmd.pl/resources/html/article/details?id=175497&language=en + - https://dez.pensoft.net/articles.php?id=11704 """ # basic paywall and loginwall detection based on URL if url.endswith("/cookieAbsent"): - return "blockpage" + return "blocked-cookie" if "://page-one.live.cf.public.springer.com" in url: return "article-sample" @@ -235,15 +280,19 @@ def html_guess_scope(url: str, doc: HTMLParser, biblio: Optional[BiblioMetadata] if "sci_arttext" in url: return "article-fulltext" + if "showcaptcha.asp" in url: + return "blocked-captcha" + platform = html_guess_platform(url, doc, biblio) if biblio: - if biblio.html_fulltext_url == url: - return "article-fulltext" - elif biblio.html_fulltext_url: - return "landingpage" + if biblio.html_fulltext_url: + if url_fuzzy_equal(biblio.html_fulltext_url, url): + return "article-fulltext" + else: + return "landingpage" - # OJS-specific detection + # platform-specific detection if platform in ("ojs", "ojs3"): if biblio and biblio.title: @@ -255,16 +304,31 @@ def html_guess_scope(url: str, doc: HTMLParser, biblio: Optional[BiblioMetadata] if "/article/view/" in url and word_count and word_count > 600: return "fulltext" return "other" + elif platform == "journalssystem.com": + if biblio and biblio.pdf_fulltext_url and word_count and word_count < 1000: + return "landingpage" + + # more platform/publisher specific checks + if "karger.com/Article/Abstract" in url: + return "landingpage" + if "dergipark.gov.tr" in url and not ("download/article-file" in url): + return "other" + + try: + if isinstance(doc.html, str) and "<center><h1>403 Forbidden</h1></center>" in doc.html: + # cloudflare block pattern + return "blocked-forbidden" + except UnicodeDecodeError: + pass + + print(f" scope guessing: platform {platform} word count: {word_count}", file=sys.stderr) # fallback: guess based on word count (arbitrary guesses here) - if word_count == None: - return "unknown" - #print(f" body text word count: {word_count}", file=sys.stderr) - assert word_count is not None - if word_count < 20: - return "stub" - elif word_count > 1200: - return "article-fulltext" + if word_count is not None: + if word_count < 20: + return "stub" + elif word_count > 1200: + return "article-fulltext" return "unknown" |