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Nose
2026-01-14 19:23:22 -08:00
parent 838008a933
commit 4b324b1e8e
2 changed files with 131 additions and 95 deletions
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207
Provider/libgen.py
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@@ -12,7 +12,7 @@ from urllib.parse import urljoin, urlparse, unquote
from ProviderCore.base import Provider, SearchResult
from SYS.utils import sanitize_filename
from SYS.logger import log
from SYS.logger import log, debug
from SYS.models import ProgressBar
# Optional dependency for HTML scraping fallbacks
@@ -786,6 +786,10 @@ class Libgen(Provider):
md = getattr(result, "full_metadata", None)
if not isinstance(md, dict):
md = {}
try:
setattr(result, "full_metadata", md)
except Exception:
pass
title = str(getattr(result, "title", "") or "").strip()
md5 = str(md.get("md5") or "").strip()
@@ -860,7 +864,11 @@ class Libgen(Provider):
last_progress_time[0] = now
ok, final_path = download_from_mirror(
target, out_path, progress_callback=progress_callback
target,
out_path,
progress_callback=progress_callback,
log_info=debug,
log_error=log,
)
progress_bar.finish()
if ok and final_path:
@@ -868,15 +876,16 @@ class Libgen(Provider):
# and then enrich tags via OpenLibrary/isbnsearch. This ensures enrichment never
# blocks the download itself.
try:
if isinstance(target, str) and target.startswith("http"):
low = target.lower()
target_str = str(target)
if isinstance(target, str) and target_str.startswith("http"):
low = target_str.lower()
# Preferred: ads.php pages often embed a complete tag block.
# Parse it post-download (best-effort) and do NOT perform external
# enrichment (OpenLibrary/isbnsearch) unless the user later chooses to.
if ("/ads.php" in low) or ("/get.php" in low):
ads_url = (
target if "/ads.php" in low else
_libgen_ads_url_for_target(target)
target_str if "/ads.php" in low else
_libgen_ads_url_for_target(target_str)
)
if ads_url:
html = _fetch_libgen_details_html(
@@ -889,7 +898,8 @@ class Libgen(Provider):
extracted_title = str(meta.get("title")
or "").strip()
if extracted_title:
md["title"] = extracted_title
if md is not None:
md["title"] = extracted_title
result.tag.add(f"title:{extracted_title}")
if (not title) or title.startswith("http"):
title = extracted_title
@@ -906,17 +916,20 @@ class Libgen(Provider):
publisher = str(meta.get("publisher") or "").strip()
if publisher:
md["publisher"] = publisher
if md is not None:
md["publisher"] = publisher
result.tag.add(f"publisher:{publisher}")
year = str(meta.get("year") or "").strip()
if year:
md["year"] = year
if md is not None:
md["year"] = year
result.tag.add(f"year:{year}")
language = str(meta.get("language") or "").strip()
if language:
md["language"] = language
if md is not None:
md["language"] = language
result.tag.add(f"language:{language}")
isbns = (
@@ -929,7 +942,8 @@ class Libgen(Provider):
if str(x).strip()
]
if isbns:
md["isbn"] = isbns
if md is not None:
md["isbn"] = isbns
for isbn_val in isbns:
result.tag.add(f"isbn:{isbn_val}")
@@ -971,12 +985,12 @@ class Libgen(Provider):
# Legacy: edition/file/series details pages (title + ISBN) + external enrichment.
if (("/edition.php" in low) or ("/file.php" in low)
or ("/series.php" in low)):
html = _fetch_libgen_details_html(target)
html = _fetch_libgen_details_html(target_str)
if html:
meta = _parse_libgen_details_html(html)
if not meta.get("edition_id"):
eid = _libgen_id_from_url(target)
eid = _libgen_id_from_url(target_str)
if eid:
meta["edition_id"] = eid
@@ -992,10 +1006,12 @@ class Libgen(Provider):
]
if extracted_title:
md["title"] = extracted_title
if md is not None:
md["title"] = extracted_title
result.tag.add(f"title:{extracted_title}")
if extracted_isbns:
md["isbn"] = extracted_isbns
if md is not None:
md["isbn"] = extracted_isbns
for isbn_val in extracted_isbns:
isbn_norm = str(isbn_val
).strip().replace("-",
@@ -1003,7 +1019,8 @@ class Libgen(Provider):
if isbn_norm:
result.tag.add(f"isbn:{isbn_norm}")
if meta.get("edition_id"):
md["edition_id"] = str(meta.get("edition_id"))
if md is not None:
md["edition_id"] = str(meta.get("edition_id"))
preferred_isbn = _prefer_isbn(extracted_isbns)
if preferred_isbn:
@@ -1017,15 +1034,40 @@ class Libgen(Provider):
except Exception:
pass
if enriched_source:
md["metadata_enriched_from"] = enriched_source
if md is not None:
md["metadata_enriched_from"] = enriched_source
if extracted_title and ((not title)
if extracted_title and ((not title)
or title.startswith("http")):
title = extracted_title
except Exception:
pass
except Exception as e:
debug(f"[libgen] Post-download enrichment failed: {e}")
debug(f"[libgen] Returning downloaded path: {final_path}")
return Path(final_path)
debug(f"[libgen] Download mirror failed (ok={ok}, path={final_path})")
return None
except Exception as exc:
debug(f"[libgen] Download exception: {exc}")
import traceback
debug(traceback.format_exc())
return None
def download_url(self, url: str, output_dir: Path) -> Optional[Path]:
"""Download a direct LibGen URL using the regular mirror logic."""
try:
from ProviderCore.base import SearchResult
sr = SearchResult(
table="libgen",
title="libgen",
path=url,
full_metadata={
"md5": _libgen_md5_from_url(url)
}
)
return self.download(sr, output_dir)
except Exception:
return None
except Exception:
return None
@@ -1635,71 +1677,53 @@ def _resolve_download_url(
# ads.php?md5=... -> get.php?md5=...
# get.php?md5=... -> file response
# Use a more relaxed regex for href that handles spaces and missing quotes.
# Format: href [space] = [space] [quote] link [quote]
def _find_link(pattern: str) -> Optional[str]:
# This regex allows:
# href="link"
# href='link'
# href=link
# href = "link"
regex = r"href\s*=\s*['\"]?(" + pattern + r")['\"]?"
match = re.search(regex, html, flags=re.IGNORECASE)
if match:
u = str(match.group(1) or "").strip()
# Strip trailing quotes if the regex over-captured (e.g. unquoted link followed by space/quote)
u = u.split("'")[0].split('"')[0].split(">")[0].split(" ")[0].strip()
if u and not u.lower().startswith("javascript:"):
return urljoin(base_url, u)
return None
# Handle edition -> file links.
m = re.search(
r'href=["\']([^"\']*file\.php\?id=\d+[^"\']*)["\']',
html,
flags=re.IGNORECASE
)
if m:
href = str(m.group(1) or "").strip()
if href and not href.lower().startswith("javascript:"):
return urljoin(base_url, href)
found = _find_link(r'[^"\' >]*file\.php\?id=\d+[^"\' >]*')
if found:
return found
# Handle series -> edition links.
m = re.search(
r'href=["\']([^"\']*edition\.php\?id=\d+[^"\']*)["\']',
html,
flags=re.IGNORECASE
)
if m:
href = str(m.group(1) or "").strip()
if href and not href.lower().startswith("javascript:"):
return urljoin(base_url, href)
found = _find_link(r'[^"\' >]*edition\.php\?id=\d+[^"\' >]*')
if found:
return found
# Handle file -> ads/get links (sometimes present as the "Libgen" mirror).
m = re.search(
r'href=["\']([^"\']*ads\.php\?md5=[a-fA-F0-9]{32}[^"\']*)["\']',
html,
flags=re.IGNORECASE,
)
if m:
href = str(m.group(1) or "").strip()
if href and not href.lower().startswith("javascript:"):
return urljoin(base_url, href)
found = _find_link(r'[^"\' >]*ads\.php\?md5=[a-fA-F0-9]{32}[^"\' >]*')
if found:
return found
# Prefer explicit get.php md5 links (most common successful chain).
m = re.search(
r'href=["\']([^"\']*get\.php\?md5=[a-fA-F0-9]{32}[^"\']*)["\']',
html,
flags=re.IGNORECASE,
)
if m:
href = str(m.group(1) or "").strip()
if href and not href.lower().startswith("javascript:"):
return urljoin(base_url, href)
found = _find_link(r'[^"\' >]*get\.php\?md5=[a-fA-F0-9]{32}[^"\' >]*')
if found:
return found
# Next: library.lol main links.
m = re.search(
r'href=["\']([^"\']*library\.lol[^"\']*)["\']',
html,
flags=re.IGNORECASE
)
if m:
href = str(m.group(1) or "").strip()
if href and not href.lower().startswith("javascript:"):
return urljoin(base_url, href)
found = _find_link(r'[^"\' >]*library\.lol[^"\' >]*')
if found:
return found
# Finally: any direct file extension link.
m = re.search(
r'href=["\']([^"\']+\.(?:pdf|epub|mobi|djvu|azw3|cbz|cbr)(?:\?[^"\']*)?)["\']',
html,
flags=re.IGNORECASE,
)
if m:
href = str(m.group(1) or "").strip()
if href and not href.lower().startswith("javascript:"):
return urljoin(base_url, href)
found = _find_link(r'[^"\' >]+\.(?:pdf|epub|mobi|djvu|azw3|cbz|cbr)(?:\?[^"\' >]*)?')
if found:
return found
return None
@@ -1713,12 +1737,12 @@ def _resolve_download_url(
return href
return None
for _ in range(6):
for idx in range(10):
if current_url in visited:
break
visited.add(current_url)
_call(log_info, f"[resolve] Checking: {current_url}")
_call(log_info, f"[resolve] Loop {idx+1} Checking: {current_url}")
if current_url.lower().endswith((".pdf",
".epub",
@@ -1727,14 +1751,16 @@ def _resolve_download_url(
".azw3",
".cbz",
".cbr")):
_call(log_info, f"[resolve] URL looks like direct file: {current_url}")
return current_url
try:
with session.get(current_url, stream=True, timeout=30) as resp:
resp.raise_for_status()
ct = resp.headers.get("Content-Type", "").lower()
ct = str(resp.headers.get("Content-Type", "")).lower()
if "text/html" not in ct:
_call(log_info, f"[resolve] URL returned non-HTML ({ct}): {current_url}")
return current_url
content = resp.text
@@ -1823,12 +1849,20 @@ def _guess_filename_extension(download_url: str,
parsed = urlparse(download_url)
suffix = Path(parsed.path).suffix
if suffix:
return suffix.lstrip(".")
ext = suffix.lstrip(".").lower()
if ext not in {"php",
"php3",
"html",
"htm",
"aspx",
"asp"}:
return ext
content_type = headers.get("content-type", "").lower()
mime_map = {
"application/pdf": "pdf",
"application/epub+zip": "epub",
"application/epub": "epub",
"application/x-mobipocket-ebook": "mobi",
"application/x-cbr": "cbr",
"application/x-cbz": "cbz",
@@ -1879,6 +1913,18 @@ def download_from_mirror(
Optional[Path]]:
"""Download file from a LibGen mirror URL with optional progress tracking."""
session = session or requests.Session()
# Ensure a modern browser User-Agent is used for downloads to avoid mirror blocks.
if not any(
k.lower() == "user-agent"
for k in (session.headers or {})
):
session.headers.update(
{
"User-Agent":
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
}
)
output_path = Path(output_path)
output_path.parent.mkdir(parents=True, exist_ok=True)
@@ -1891,7 +1937,7 @@ def download_from_mirror(
_call(log_error, "[download] Could not find direct download link")
return False, None
_call(log_info, f"[download] Downloading from: {download_url}")
_call(log_info, f"[download] Resolved final file URL: {download_url}")
downloaded = 0
total_size = 0
@@ -1908,6 +1954,7 @@ def download_from_mirror(
return False, None
total_size = int(headers.get("content-length", 0) or 0)
_call(log_info, f"[download] Starting transfer ({total_size} bytes)")
with open(output_path, "wb") as f:
for chunk in r.iter_content(chunk_size=8192):
@@ -1923,7 +1970,7 @@ def download_from_mirror(
if progress_callback and total_size > 0:
progress_callback(downloaded, total_size)
_call(log_info, f"[download] Saved to {final_path}")
_call(log_info, f"[download] Successfully saved to {final_path}")
return True, final_path
except Exception as e:

19
cmdlet/download_file.py
View File

@@ -401,22 +401,11 @@ class Download_File(Cmdlet):
downloaded_path = provider_obj.download(sr, output_dir)
provider_sr = sr
debug(f"[download-file] Provider download result: {downloaded_path}")
if downloaded_path is None:
# Some providers might work via callback 'download_items', mostly legacy.
# If relevant, check for it.
download_items = getattr(provider_obj, "download_items", None)
if callable(download_items):
pass # We can implement generic callback support if needed,
# but pure download() is preferred.
# Fallback: if we have a direct HTTP URL, download it directly
if (downloaded_path is None and isinstance(target,
str)
and target.startswith("http")):
# Generic guard for known "not-a-file" URLs could go here or in a helper,
# but for now we rely on user or provider.
# Fallback: if we have a direct HTTP URL and no provider successfully handled it
if (downloaded_path is None and not attempted_provider_download
and isinstance(target, str) and target.startswith("http")):
debug(
f"[download-file] Provider item looks like direct URL, downloading: {target}"