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import datetime
from urllib.parse import quote
import requests
from requests.adapters import HTTPAdapter
from urllib3.util.retry import Retry
from lxml import etree
import streamlit as st
# =====================================================================
# Networking Configuration
# =====================================================================
HEADERS = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36",
"Accept": "application/xml, text/xml, */*"
}
def get_robust_session():
"""Returns a requests session with retry logic for transient errors (500, 502, 503, 504)."""
session = requests.Session()
retry_strategy = Retry(
total=5,
backoff_factor=1,
status_forcelist=[429, 500, 502, 503, 504],
allowed_methods=["GET"]
)
adapter = HTTPAdapter(max_retries=retry_strategy)
session.mount("http://", adapter)
session.mount("https://", adapter)
return session
ROBUST_SESSION = get_robust_session()
# =====================================================================
# Namespaces
# =====================================================================
CROSSREF_NS = "http://www.crossref.org/schema/4.4.2"
XSI_NS = "http://www.w3.org/2001/XMLSchema-instance"
JATS_NS = "http://www.ncbi.nlm.nih.gov/JATS1"
XML_NS = "http://www.w3.org/XML/1998/namespace"
AI_NS = "http://www.crossref.org/AccessIndicators.xsd"
MODS_NS = "http://www.loc.gov/mods/v3"
XML_LANG = f"{{{XML_NS}}}lang"
# =====================================================================
# Hilfsfunktionen
# =====================================================================
def clean_text(text: str) -> str:
"""Bereinigt Soft-Hyphen, PDF-Trennungen, Zeilenumbrüche – sonst unverändert."""
if not text:
return ""
return (
text.replace("\u00AD", "") # Soft Hyphen
.replace("­", "") # alternative Soft Hyphen
.replace("\n", " ")
).strip()
def get_text(node, xpath, ns):
elem = node.find(xpath, namespaces=ns)
return clean_text(elem.text) if elem is not None and elem.text else ""
def build_dora_mods_url(repo_code: str, object_or_url: str, host: str = "www.dora.lib4ri.ch") -> list[str]:
"""
Erzeugt eine Liste von möglichen MODS-URLs (Direct Datastream & OAI-PMH)
aus einer DORA-ID wie 'wsl:41900'.
"""
if object_or_url.startswith("http://") or object_or_url.startswith("https://"):
return [object_or_url]
# ID bereinigen
clean_id = object_or_url.strip()
# Für URLs muss die ID encodiert werden (z.B. : zu %3A)
encoded_id = quote(clean_id)
oai_id = clean_id.replace(":", "_")
# Variante 1: Direct Datastream (oft stabiler gegen IP-Sperren)
direct_url = f"https://{host}/{repo_code}/islandora/object/{encoded_id}/datastream/MODS/view"
# Variante 2: OAI-PMH
oai_url = f"https://{host}/{repo_code}/oai2?verb=GetRecord&identifier=oai:dora:{oai_id}&metadataPrefix=mods"
return [direct_url, oai_url]
def build_persistent_url(repo_code: str, object_id: str) -> str:
"""
Erzeugt die neue persistente URL im Format:
https://www.dora.lib4ri.ch/{repo}/item/{id}
"""
# Force public domain for persistent links
public_base = "https://www.dora.lib4ri.ch"
return f"{public_base}/{repo_code}/item/{object_id}"
def fetch_mods_xml(mods_urls: list[str]) -> etree._Element:
"""Probiert eine Liste von URLs durch, bis ein MODS-XML erfolgreich geladen wird."""
errors = []
for url in mods_urls:
# Versuch 1: Mit Browser-Headern
# Versuch 2: Ohne spezielle Header (falls der Server picky ist)
for use_headers in [True, False]:
current_headers = HEADERS if use_headers else {}
header_label = "Browser-Header" if use_headers else "Standard-Header"
try:
resp = ROBUST_SESSION.get(url, headers=current_headers, timeout=30)
if resp.status_code != 200:
errors.append(f"FAILED ({header_label}): {url} -> HTTP {resp.status_code}")
continue
# Use recover=True to handle malformed XML
parser = etree.XMLParser(recover=True, remove_blank_text=True)
root = etree.fromstring(resp.content, parser=parser)
# Falls es sich um eine OAI-PMH Antwort handelt, extrahiere den <mods:mods> Knoten
if "OAI-PMH" in root.tag or root.tag.endswith("OAI-PMH"):
ns = {
"oai": "http://www.openarchives.org/OAI/2.0/",
"mods": "http://www.loc.gov/mods/v3"
}
mods_node = root.find(".//mods:mods", namespaces=ns)
if mods_node is not None:
return mods_node
else:
errors.append(f"EMPTY: {url} (OAI-PMH Antwort enthielt kein <mods:mods>)")
else:
# Es ist bereits das MODS Element oder ein MODS-ähnlicher Knoten
if "mods" in root.tag.lower():
return root
errors.append(f"UNRECOGNIZED: {url} (Wurzel-Element '{root.tag}' ist kein MODS)")
except Exception as e:
errors.append(f"ERROR ({header_label}): {url} -> {str(e)}")
continue
# Wenn wir hier ankommen, sind alle Versuche fehlgeschlagen
error_summary = "\n".join(errors)
st.error("### Ernte-Bericht (Alle Versuche fehlgeschlagen)")
for err in errors:
st.write(f"- {err}")
raise ValueError("Metadaten konnten von keiner der verfügbaren URLs geladen werden.")
def parse_book_mods(book_root: etree._Element, repo_base_url: str) -> dict:
"""Extrahiert Buch-Metadaten aus einem Buch-MODS-Record."""
ns = book_root.nsmap.copy()
if "mods" not in ns:
ns["mods"] = MODS_NS
# Buchtitel
book_title = get_text(book_root, ".//mods:titleInfo/mods:title", ns)
# Serie (falls vorhanden)
series_title = get_text(
book_root,
".//mods:relatedItem[@type='series']/mods:titleInfo/mods:title",
ns
)
series_issn = get_text(
book_root,
".//mods:relatedItem[@type='series']/mods:identifier[@type='issn']",
ns
)
# Herausgeber (editor) & Autoren (author - für Monographs)
editors = []
authors = []
for name in book_root.findall(".//mods:name[@type='personal']", ns):
role = name.find("mods:role/mods:roleTerm", ns)
if role is not None:
role_text = role.text.lower()
if role_text == "editor":
given = get_text(name, "mods:namePart[@type='given']", ns)
family = get_text(name, "mods:namePart[@type='family']", ns)
editors.append({"given": given, "family": family})
elif role_text == "author":
given = get_text(name, "mods:namePart[@type='given']", ns)
family = get_text(name, "mods:namePart[@type='family']", ns)
# Authors at book level (for Monographs)
authors.append({"given": given, "family": family})
# Publisher
publisher_name = get_text(book_root, ".//mods:originInfo/mods:publisher", ns)
# Publikationsjahr (online)
pub_year = get_text(
book_root,
".//mods:originInfo/mods:dateIssued[@encoding='w3cdtf'][@keyDate='yes']",
ns
)
if not pub_year:
pub_year = get_text(book_root, ".//mods:originInfo/mods:dateIssued", ns)
# DOI & URI
book_doi = get_text(book_root, ".//mods:identifier[@type='doi']", ns)
# Persistent URL format
# Example: https://www.dora.lib4ri.ch/psi/item/psi:84778
book_id = get_text(book_root, ".//mods:identifier[@type='local']", ns)
if not book_id:
# Fallback to building ID from DOI if possible, or use a placeholder
book_id = book_doi.split("/")[-1] if book_doi else ""
# Get repo_code from the ID itself (e.g. 'psi' from 'psi:84778')
current_repo = book_id.split(":")[0] if ":" in book_id else repo_base_url.split("/")[-1]
book_resource = build_persistent_url(current_repo, book_id) if book_id else ""
# ISBN / noisbn
isbn_val = get_text(book_root, ".//mods:identifier[@type='isbn']", ns)
noisbn_reason = "archive_volume" if not isbn_val else None
# Default to current date if not found/provided
today = datetime.date.today()
meta = {
"book_title": book_title,
"series_title": series_title or "",
"series_issn": series_issn or "",
"publisher_name": publisher_name,
"pub_year": int(pub_year[:4]) if pub_year else today.year,
"pub_month": str(today.month),
"pub_day": str(today.day),
"noisbn_reason": noisbn_reason or "",
"book_doi": book_doi or "",
"book_resource": book_resource or "",
"report_number": "",
"editors": editors,
"authors": authors,
}
return meta
def mods_to_content_item(mods_root: etree._Element, repo_base_url: str) -> tuple[etree._Element, int]:
"""Wandelt ein Kapitel-MODS in ein Crossref <content_item> um."""
ns = mods_root.nsmap.copy()
if "mods" not in ns:
ns["mods"] = MODS_NS
title = get_text(mods_root, ".//mods:titleInfo/mods:title", ns)
doi = get_text(mods_root, ".//mods:identifier[@type='doi']", ns)
year = get_text(mods_root, ".//mods:originInfo/mods:dateIssued", ns)
abstract = get_text(mods_root, ".//mods:abstract", ns)
first_page = get_text(mods_root, ".//mods:extent[@unit='page']/mods:start", ns)
last_page = get_text(mods_root, ".//mods:extent[@unit='page']/mods:end", ns)
# Autoren
authors = []
for name in mods_root.findall(".//mods:name[@type='personal']", ns):
role = name.find("mods:role/mods:roleTerm", ns)
if role is not None and role.text == "author":
given = get_text(name, "mods:namePart[@type='given']", ns)
family = get_text(name, "mods:namePart[@type='family']", ns)
authors.append((given, family))
ci = etree.Element("content_item", component_type="chapter")
# Contributors
contribs = etree.SubElement(ci, "contributors")
for idx, (given, family) in enumerate(authors):
pn = etree.SubElement(
contribs,
"person_name",
sequence="first" if idx == 0 else "additional",
contributor_role="author",
)
etree.SubElement(pn, "given_name").text = given
etree.SubElement(pn, "surname").text = family
# Titel
titles = etree.SubElement(ci, "titles")
etree.SubElement(titles, "title").text = title
# Abstract (JATS)
jats_abs = etree.SubElement(ci, f"{{{JATS_NS}}}abstract", {XML_LANG: "en"})
p = etree.SubElement(jats_abs, f"{{{JATS_NS}}}p")
p.text = abstract
# Publikationsdatum
pub = etree.SubElement(ci, "publication_date", media_type="online")
if year:
etree.SubElement(pub, "year").text = year[:4]
# Seiten
if first_page or last_page:
pages = etree.SubElement(ci, "pages")
if first_page:
etree.SubElement(pages, "first_page").text = first_page
if last_page:
etree.SubElement(pages, "last_page").text = last_page
# License information (AccessIndicators) - must come before doi_data
ai_program = etree.SubElement(ci, f"{{{AI_NS}}}program", name="AccessIndicators")
license_ref = etree.SubElement(ai_program, f"{{{AI_NS}}}license_ref")
license_ref.text = "https://creativecommons.org/licenses/by/4.0/"
license_ref.set("applies_to", "vor")
license_ref.set("start_date", year[:4] + "-01-01" if year else "")
# DOI
if doi:
doi_data = etree.SubElement(ci, "doi_data")
etree.SubElement(doi_data, "doi").text = doi
# New persistent URL format
chapter_id = doi.split("/")[-1] if "/" in doi else doi
repo_code_extracted = chapter_id.split(":")[0] if ":" in chapter_id else repo_base_url.split("/")[-1]
etree.SubElement(
doi_data,
"resource"
).text = build_persistent_url(repo_code_extracted, chapter_id)
# Sortierung nach first_page
try:
page_number = int(first_page)
except Exception:
page_number = 999999
return ci, page_number
def build_doi_batch_xml(
book_meta: dict,
depositor_meta: dict,
chapter_items: list[tuple[etree._Element, int]],
book_type: str = "edited_book",
) -> bytes:
"""
Erzeugt Crossref-<doi_batch>.
book_type: 'edited_book', 'monograph', oder 'report-paper' (custom internal flag).
"""
doi_batch = etree.Element(
"doi_batch",
nsmap={
None: CROSSREF_NS,
"xsi": XSI_NS,
"jats": JATS_NS,
"ai": AI_NS,
}
)
doi_batch.set("version", "4.4.2")
doi_batch.set(
f"{{{XSI_NS}}}schemaLocation",
"http://www.crossref.org/schema/4.4.2 "
"http://www.crossref.org/schema/deposit/crossref4.4.2.xsd"
)
# HEAD
head = etree.SubElement(doi_batch, "head")
etree.SubElement(head, "doi_batch_id").text = depositor_meta["doi_batch_id"]
ts = datetime.datetime.now(datetime.timezone.utc).strftime("%Y%m%d%H%M%S")
etree.SubElement(head, "timestamp").text = ts
depositor = etree.SubElement(head, "depositor")
etree.SubElement(depositor, "depositor_name").text = depositor_meta["depositor_name"]
etree.SubElement(depositor, "email_address").text = depositor_meta["depositor_email"]
etree.SubElement(head, "registrant").text = depositor_meta["registrant"]
# BODY
body = etree.SubElement(doi_batch, "body")
# Determine structure based on book_type
if book_type == "report-paper":
report_paper = etree.SubElement(body, "report-paper")
# Decide between report-paper_metadata and report-paper_series_metadata
has_series = (book_meta.get("series_title") or book_meta.get("series_issn"))
if has_series:
metadata_root = etree.SubElement(report_paper, "report-paper_series_metadata")
# 1. SERIES METADATA (Required if using report-paper_series_metadata)
series_metadata = etree.SubElement(metadata_root, "series_metadata")
if book_meta.get("series_title"):
stitles = etree.SubElement(series_metadata, "titles")
etree.SubElement(stitles, "title").text = book_meta["series_title"]
if book_meta.get("series_issn"):
etree.SubElement(series_metadata, "issn").text = book_meta["series_issn"]
else:
metadata_root = etree.SubElement(report_paper, "report-paper_metadata")
else:
# BOOK STRUCTURE (Edited Book or Monograph)
book = etree.SubElement(body, "book", book_type=book_type)
# If it's a monograph or edited book, we often use book_series_metadata or book_metadata
# For simplicity and to match the schema, let's stick to book_series_metadata if series exists
if book_meta.get("series_title") or book_meta.get("series_issn"):
metadata_root = etree.SubElement(book, "book_series_metadata")
series_metadata = etree.SubElement(metadata_root, "series_metadata")
if book_meta.get("series_title"):
stitles = etree.SubElement(series_metadata, "titles")
etree.SubElement(stitles, "title").text = book_meta["series_title"]
if book_meta.get("series_issn"):
etree.SubElement(series_metadata, "issn").text = book_meta["series_issn"]
else:
metadata_root = etree.SubElement(book, "book_metadata")
# 2. CONTRIBUTORS
# Contributors (Editors or Authors)
contributors_list = []
role = "editor"
if book_type in ["monograph", "report-paper"]:
contributors_list = book_meta.get("authors", [])
role = "author"
else:
contributors_list = book_meta.get("editors", [])
role = "editor"
if contributors_list:
contribs = etree.SubElement(metadata_root, "contributors")
for idx, person in enumerate(contributors_list):
pn = etree.SubElement(
contribs,
"person_name",
sequence="first" if idx == 0 else "additional",
contributor_role=role
)
etree.SubElement(pn, "given_name").text = person["given"]
etree.SubElement(pn, "surname").text = person["family"]
# 3. TITLES
titles = etree.SubElement(metadata_root, "titles")
etree.SubElement(titles, "title").text = book_meta["book_title"]
# 4. PUBLICATION DATE
pub = etree.SubElement(metadata_root, "publication_date", media_type="online")
if book_meta.get("pub_month") and book_meta.get("pub_month").strip():
try:
etree.SubElement(pub, "month").text = f"{int(book_meta['pub_month']):02d}"
except ValueError:
pass
if book_meta.get("pub_day") and book_meta.get("pub_day").strip():
try:
etree.SubElement(pub, "day").text = f"{int(book_meta['pub_day']):02d}"
except ValueError:
pass
etree.SubElement(pub, "year").text = str(book_meta["pub_year"])
# 5. NOISBN (only for books)
if book_type != "report-paper":
if book_meta.get("noisbn_reason"):
etree.SubElement(metadata_root, "noisbn", reason=book_meta["noisbn_reason"])
# 6. PUBLISHER
pub_node = etree.SubElement(metadata_root, "publisher")
etree.SubElement(pub_node, "publisher_name").text = book_meta["publisher_name"]
# 7. PUBLISHER ITEM (Report Number) - Only for report-paper
if book_type == "report-paper" and book_meta.get("report_number"):
publisher_item = etree.SubElement(metadata_root, "publisher_item")
etree.SubElement(publisher_item, "identifier", id_type="report-number").text = book_meta["report_number"]
# 8. DOI DATA
if book_meta.get("book_doi") or book_meta.get("book_resource"):
doi_data = etree.SubElement(metadata_root, "doi_data")
if book_meta.get("book_doi"):
etree.SubElement(doi_data, "doi").text = book_meta["book_doi"]
if book_meta.get("book_resource"):
etree.SubElement(doi_data, "resource").text = book_meta["book_resource"]
# 10. COMPONENTS (Chapters)
# Sort and append chapters
if book_type != "report-paper":
# For books, chapters are children of <book> node
# But wait, in the loop below we append to 'book' variable.
# 'book' variable is only defined if book_type != 'report-paper'.
pass
chapter_items.sort(key=lambda x: x[1])
for ci, _page in chapter_items:
if book_type == "report-paper":
report_paper.append(ci)
else:
book.append(ci)
xml_bytes = etree.tostring(
doi_batch,
pretty_print=True,
encoding="UTF-8",
xml_declaration=True
)
return xml_bytes
class CrossrefSchemaResolver(etree.Resolver):
"""Custom resolver to fetch included XSD schemas from Crossref and W3C."""
def resolve(self, url, id, context):
# Map of known schema locations
schema_map = {
'mathml3-content.xsd': 'http://www.w3.org/Math/XMLSchema/mathml3/mathml3-content.xsd',
'mathml3-presentation.xsd': 'http://www.w3.org/Math/XMLSchema/mathml3/mathml3-presentation.xsd',
'mathml3-strict-content.xsd': 'http://www.w3.org/Math/XMLSchema/mathml3/mathml3-strict-content.xsd',
'mathml3-common.xsd': 'http://www.w3.org/Math/XMLSchema/mathml3/mathml3-common.xsd',
}
# Determine the URL to fetch
if url.startswith("http://") or url.startswith("https://"):
schema_url = url
elif url in schema_map:
schema_url = schema_map[url]
else:
schema_url = f"https://www.crossref.org/schemas/{url}"
try:
response = ROBUST_SESSION.get(schema_url, headers=HEADERS, timeout=30)
response.raise_for_status()
return self.resolve_string(response.content, context)
except Exception:
# If fetching fails, return None to use default behavior
return None
def validate_crossref_xml(xml_bytes: bytes) -> tuple[bool, list[str]]:
"""
Validiert Crossref XML gegen das offizielle XSD Schema.
Returns:
tuple: (is_valid, error_messages)
"""
errors = []
try:
# Parse XML
doc = etree.fromstring(xml_bytes)
# Crossref XSD Schema URL
schema_url = "https://www.crossref.org/schemas/crossref4.4.2.xsd"
# Download schema (mit Caching in Session State für Performance)
if 'crossref_schema' not in st.session_state:
try:
# Create parser with custom resolver
parser = etree.XMLParser()
parser.resolvers.add(CrossrefSchemaResolver())
# Download main schema
schema_resp = ROBUST_SESSION.get(schema_url, headers=HEADERS, timeout=60)
schema_resp.raise_for_status()
# Parse schema with resolver
schema_doc = etree.fromstring(schema_resp.content, parser)
st.session_state.crossref_schema = etree.XMLSchema(schema_doc)
except Exception as e:
errors.append(f"Fehler beim Laden des XSD Schemas: {e}")
return False, errors
schema = st.session_state.crossref_schema
# Validierung
is_valid = schema.validate(doc)
if not is_valid:
for error in schema.error_log:
errors.append(f"Zeile {error.line}: {error.message}")
return is_valid, errors
except etree.XMLSyntaxError as e:
errors.append(f"XML Syntax Fehler: {e}")
return False, errors
except Exception as e:
errors.append(f"Unerwarteter Fehler: {e}")
return False, errors
# =====================================================================
# REPOSITORY CONFIGURATION
# =====================================================================
REPO_CONFIG = {
"wsl": {
"publisher": "Swiss Federal Institute for Forest, Snow and Landscape Research, WSL",
"registrant": "Swiss Federal Institute for Forest, Snow and Landscape Research, WSL",
"prefix": "10.55419",
"role": "wslx"
},
"psi": {
"publisher": "Paul Scherrer Institute, PSI",
"registrant": "Paul Scherrer Institute, PSI",
"prefix": "10.55402",
"role": "psit"
},
"empa": {
"publisher": "Swiss Federal Laboratories for Materials Science and Technology, Empa",
"registrant": "Swiss Federal Laboratories for Materials Science and Technology, Empa",
"prefix": "10.55368",
"role": "empa"
},
"eawag": {
"publisher": "Swiss Federal Institute of Aquatic Science and Technology, Eawag",
"registrant": "Swiss Federal Institute of Aquatic Science and Technology, Eawag",
"prefix": "10.55408",
"role": "eawa"
}
}
def main():
st.title("Crossref XML Generator/Uploader")
st.markdown(
"Dieses Dashboard lädt **MODS-Metadaten direkt aus DORA** mittels IDs "
"und erzeugt ein vollständiges Crossref-XML (`doi_batch`) für Reports (WSL Berichte und PSI Berichte) und Edited Books/Conference Proceedings."
)
st.subheader("Konfiguration & Quelle")
col_config, col_source = st.columns(2)
with col_config:
st.markdown("#### Verbindung & Typ")
dora_host = st.selectbox(
"DORA Host",
options=["www.dora.lib4ri.ch", "admin.dora.lib4ri.ch"],
index=0,
help="Nutze 'www' für externen Zugriff (Hugging Face) und 'admin' für institutsweiten Zugriff."
)
repo_list = list(REPO_CONFIG.keys())
repo_code = st.selectbox(
"Repository-Code",
options=repo_list,
index=0,
format_func=lambda x: x.upper()
)
repo_config = REPO_CONFIG[repo_code]
repo_base_url = f"https://{dora_host}/{repo_code}"
pub_type = st.radio(
"Publikationstyp",
("Edited Book", "Report (WSL, Monograph Series)", "Report (Eawag, PSI, Paper Series)"),
horizontal=False
)
# Mapping auf Crossref book_type / report type
cr_book_type = "edited_book"
if "Monograph" in pub_type:
cr_book_type = "monograph"
elif "Paper Series" in pub_type:
cr_book_type = "report-paper"
with col_source:
st.markdown("#### MODS-Quelle")
# Dynamic default ID based on repo
default_id = "41891"
if repo_code == "psi":
default_id = "84057"
book_id_or_url = st.text_input(
"DORA-ID oder MODS-URL",
value=f"{repo_code}:{default_id}",
help="Beispiel: wsl:41900 oder komplette URL"
)
st.write("") # Spacer
if st.button("Metadaten laden", type="primary"):
try:
mods_urls = build_dora_mods_url(repo_code, book_id_or_url, host=dora_host)
st.info(f"Suche MODS-Metadaten auf: {dora_host}...")
book_root = fetch_mods_xml(mods_urls)
meta = parse_book_mods(book_root, repo_base_url)
# --- Attempt to extract report number from MODS ---
ns = book_root.nsmap.copy()
if "mods" not in ns:
ns["mods"] = MODS_NS
report_num = get_text(book_root, ".//mods:identifier[@type='report number']", ns)
if not report_num:
report_num = get_text(book_root, ".//mods:identifier[@type='report-number']", ns)
if not report_num:
# Check <note type="report number">
report_num = get_text(book_root, ".//mods:note[@type='report number']", ns)
if report_num:
meta["report_number"] = report_num
st.info(f"Report Number gefunden: {report_num}")
# --------------------------------------------------
# Update flat fields in session state for widgets
for k, v in meta.items():
if k in ["book_title", "series_title", "series_issn", "publisher_name",
"pub_year", "pub_month", "pub_day", "noisbn_reason",
"book_doi", "book_resource", "report_number"]:
st.session_state[k] = v
st.session_state.book_meta[k] = v
# Special handling for persons text area
if cr_book_type in ["monograph", "report-paper"]:
current_list = meta.get("authors", [])
else:
current_list = meta.get("editors", [])
st.session_state["persons_input"] = "\n".join(f"{e['given']};{e['family']}" for e in current_list)
st.session_state.book_meta_loaded = True
st.success("Metadaten erfolgreich geladen.")
st.rerun()
except Exception as e:
st.error(f"Fehler beim Laden der MODS: {e}")
import traceback
st.text(traceback.format_exc())
# Session State Init Logic (unchanged but placed after UI definition for clarity in reading flow, strictly it runs before inputs generally)
if "book_meta_loaded" not in st.session_state:
st.session_state.book_meta_loaded = False
# Current date for defaults
today = datetime.date.today()
# Initialize session state keys for widgets if not present
if "book_title" not in st.session_state:
st.session_state.book_title = ""
if "series_title" not in st.session_state:
st.session_state.series_title = ""
if "series_issn" not in st.session_state:
st.session_state.series_issn = ""
if "publisher_name" not in st.session_state:
st.session_state.publisher_name = repo_config["publisher"]
if "pub_year" not in st.session_state:
st.session_state.pub_year = today.year
if "pub_month" not in st.session_state:
st.session_state.pub_month = str(today.month)
if "pub_day" not in st.session_state:
st.session_state.pub_day = str(today.day)
if "noisbn_reason" not in st.session_state:
st.session_state.noisbn_reason = ""
if "book_doi" not in st.session_state:
st.session_state.book_doi = ""
if "book_resource" not in st.session_state:
st.session_state.book_resource = ""
if "report_number" not in st.session_state:
st.session_state.report_number = ""
if "persons_input" not in st.session_state:
st.session_state.persons_input = ""
if "book_meta" not in st.session_state:
st.session_state.book_meta = {
"book_title": "",
"series_title": "",
"series_issn": "",
"publisher_name": repo_config["publisher"],
"pub_year": today.year,
"pub_month": str(today.month),
"pub_day": str(today.day),
"noisbn_reason": "",
"book_doi": "",
"book_resource": "",
"report_number": "",
"editors": [],
"authors": [],
}
# CHECK: has the repo code changed since last run?
if "last_repo_code" not in st.session_state:
st.session_state.last_repo_code = repo_code
st.session_state.registrant = repo_config["registrant"]
st.session_state.cr_role = repo_config.get("role", "")
if st.session_state.last_repo_code != repo_code:
# Repo changed! Update defaults
st.session_state.publisher_name = repo_config["publisher"]
st.session_state.book_meta["publisher_name"] = repo_config["publisher"]
st.session_state.registrant = repo_config["registrant"]
# If the user hasn't typed anything yet or if we force update?
# Let's force update the role in session state so the input widget picks it up
st.session_state.cr_role = repo_config.get("role", "")
st.session_state.last_repo_code = repo_code
st.markdown("---")
st.subheader("Metadaten & Inhalte")
# Use expander for metadata editing to keep UI clean
with st.expander("Metadaten bearbeiten", expanded=True):
bm = st.session_state.book_meta
col_b1, col_b2 = st.columns(2)
with col_b1:
st.text_input("Titel", key="book_title")
st.text_input("Serientitel", key="series_title")
st.text_input("Serien-ISSN", key="series_issn")
st.text_input("Publisher Name", key="publisher_name")
if cr_book_type == "report-paper":
st.text_input("Report Number", key="report_number")
with col_b2:
c_y, c_m, c_d = st.columns(3)
with c_y:
st.number_input("Jahr", min_value=1900, max_value=2100, key="pub_year")
with c_m:
st.text_input("Monat", key="pub_month")
with c_d:
st.text_input("Tag", key="pub_day")
if cr_book_type != "report-paper":
st.text_input("noisbn reason", key="noisbn_reason")
st.markdown("##### Identifikatoren")
col_id1, col_id2 = st.columns(2)
with col_id1:
st.text_input("DOI", key="book_doi")
with col_id2:
st.text_input("Resource URL", key="book_resource")
st.caption(f"Basis DOI Prefix: {repo_config['prefix']}")
st.markdown("##### Mitwirkende")
# Decide label based on type
if cr_book_type in ["monograph", "report-paper"]:
st.info("Bitte **Autoren** eintragen (Vorname;Nachname).")
label = "Autoren"
else:
st.info("Bitte **Editoren** eintragen (Vorname;Nachname).")
label = "Editoren"
persons_text = st.text_area(label, key="persons_input", height=100)
# Parse and save back
new_persons = []
for line in persons_text.splitlines():
line = line.strip()
if not line:
continue
parts = [p.strip() for p in line.split(";")]
if len(parts) == 2:
new_persons.append({"given": parts[0], "family": parts[1]})
if cr_book_type in ["monograph", "report-paper"]:
bm["authors"] = new_persons
else:
bm["editors"] = new_persons
st.markdown("---")
st.subheader("Depositor & Batch Info")
with st.expander("Depositor Details", expanded=False):
col_d1, col_d2 = st.columns(2)
with col_d1:
depositor_name = st.text_input(
"Depositor Name",
value="Lib4RI - Library for the Research Institutes within the ETH Domain: Eawag, Empa, PSI & WSL"
)
with col_d2:
depositor_email = st.text_input("Depositor Email", value="dora@lib4ri.ch")
ts = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
batch_prefix = "book"
if cr_book_type == "report-paper":
batch_prefix = "report"
elif cr_book_type == "monograph":
batch_prefix = "monograph"
doi_batch_id = st.text_input(
"DOI Batch ID",
value=f"{batch_prefix}_{ts}",
help="Wird im XML-Header verwendet. Sollte eindeutig sein."
)
if "registrant" not in st.session_state:
st.session_state.registrant = repo_config["registrant"]
registrant = st.text_input("Registrant", value=st.session_state.registrant)
st.session_state.registrant = registrant
depositor_meta = {
"depositor_name": depositor_name,
"depositor_email": depositor_email,
"registrant": st.session_state.registrant,
"doi_batch_id": doi_batch_id
}
st.subheader("Kapitel / Inhalte")
st.caption("Ein Eintrag pro Zeile: ID (z.B. wsl:12345) oder URL")
st.markdown(
"Gib **eine DORA-ID** (z.B. `wsl:41900`) oder eine **komplette MODS-URL** "
"pro Zeile ein."
)
chapters_text = st.text_area("Kapitel-Liste", height=200, help="Liste der IDs oder URLs")
st.markdown("---")
st.subheader("XML Generierung")
if st.button("Crossref XML generieren", type="primary"):
try:
chapter_items = []
for line in chapters_text.splitlines():
line = line.strip()
if not line:
continue
mods_urls = build_dora_mods_url(repo_code, line, host=dora_host)
mods_root = fetch_mods_xml(mods_urls)
ci, page_no = mods_to_content_item(mods_root, repo_base_url)
chapter_items.append((ci, page_no))
if not chapter_items and cr_book_type == "edited_book":
st.warning("Keine Kapitel angegeben! Ein Edited Book sollte normalerweise Kapitel enthalten.")
# book_meta aus session state / widgets zusammenbauen
book_meta = {
"book_title": st.session_state.book_title,
"series_title": st.session_state.series_title,
"series_issn": st.session_state.series_issn,
"publisher_name": st.session_state.publisher_name,
"pub_year": int(st.session_state.pub_year) if st.session_state.get("pub_year") else 0,
"pub_month": st.session_state.pub_month,
"pub_day": st.session_state.pub_day,
"noisbn_reason": st.session_state.get("noisbn_reason", ""),
"book_doi": st.session_state.book_doi,
"book_resource": st.session_state.book_resource,
"report_number": st.session_state.get("report_number", ""),
"editors": new_persons if cr_book_type not in ["monograph", "report-paper"] else [],
"authors": new_persons if cr_book_type in ["monograph", "report-paper"] else [],
}
xml_bytes = build_doi_batch_xml(book_meta, depositor_meta, chapter_items, book_type=cr_book_type)
# Store in session state
st.session_state.crossref_xml = xml_bytes
st.session_state.crossref_filename = "crossref_edited_book.xml"
st.success("Crossref XML erfolgreich erzeugt!")
# Validierung gegen Crossref XSD Schema
st.subheader("XML Validierung")
with st.spinner("Validiere XML gegen Crossref Schema..."):
is_valid, validation_errors = validate_crossref_xml(xml_bytes)
if is_valid:
st.success("✓ XML ist valide und bereit für Crossref!")
else:
st.error("✗ XML Validierung fehlgeschlagen:")
for error in validation_errors:
st.error(f" • {error}")
st.warning("Das XML kann trotzdem heruntergeladen werden, wird aber möglicherweise von Crossref abgelehnt.")
except Exception as e:
st.error(f"Fehler bei der Erzeugung des XML: {e}")
import traceback
st.text(traceback.format_exc())
# Display Download and Upload if XML exists in session state
if "crossref_xml" in st.session_state:
xml_bytes = st.session_state.crossref_xml
# Download Button
st.download_button(
label="XML herunterladen",
data=xml_bytes,
file_name=st.session_state.crossref_filename,
mime="application/xml"
)
# ---------------------------------------------------------
# Crossref Upload Section
# ---------------------------------------------------------
st.markdown("---")
st.subheader("Automatischer Upload zu Crossref")
# Determine default role if not in session state
if "cr_role" not in st.session_state:
st.session_state.cr_role = REPO_CONFIG.get(st.session_state.last_repo_code, {}).get("role", "")
col_u1, col_u2 = st.columns(2)
with col_u1:
cr_user = st.text_input("Crossref Username", value="dora@lib4ri.ch")
# Use key to bind to session state
cr_role = st.text_input("Crossref Role (wslx, empa, eawa, psit)", key="cr_role")
with col_u2:
cr_pass = st.text_input("Crossref Password", type="password")
if st.button("Upload to Crossref"):
if not cr_user or not cr_pass:
st.error("Bitte Username und Passwort für Crossref angeben.")
else:
with st.spinner("Lade zu Crossref hoch..."):
res = upload_to_crossref(xml_bytes, cr_user, cr_pass, cr_role)
if isinstance(res, str) and res.startswith("Exception"):
st.error(f"Upload fehlgeschlagen: {res}")
else:
# Crossref returns 200 even on some logic errors, text contains details
if res.status_code == 200:
if "successfully received" in res.text:
st.success("Upload erfolgreich! Crossref hat die Datei empfangen.")
with st.expander("Server-Antwort ansehen"):
st.text(res.text)
else:
st.warning("Upload technisch erfolgreich (HTTP 200), aber Crossref meldet eventuell Fehler.")
with st.expander("Server-Antwort ansehen (Fehleranalyse)"):
st.text(res.text)
else:
st.error(f"HTTP Fehler: {res.status_code}")
st.text(res.text)
def upload_to_crossref(xml_content, username, password, role=None):
url = "https://doi.crossref.org/servlet/deposit"
# Construct login_id with role if provided (format: username/role)
login_id = username
if role and role.strip():
login_id = f"{username}/{role.strip()}"
# Multipart form data
# 'operation': 'doMDUpload'
# 'login_id': username (or username/role)
# 'login_passwd': password
# 'fname': (filename, file_content, content_type)
files = {
'fname': ('crossref_submission.xml', xml_content, 'application/xml')
}
data = {
'operation': 'doMDUpload',
'login_id': login_id,
'login_passwd': password
}
try:
response = requests.post(url, files=files, data=data, timeout=60)
return response
except Exception as e:
return f"Exception: {e}"
if __name__ == "__main__":
main()