Adds a clean-room PortalaAdapter that talks to the eUI/portala framework
behind PADOKA (Landtag Sachsen-Anhalt). Same engine powers Berlin's
PARDOK; the same adapter will serve issue #3 once activated for BE.
Reverse-engineering notes
- The "PADOKA = StarWeb" assumption from issue #1 / dokukratie's st.yml
is outdated. The Sachsen-Anhalt portal was migrated to the same
eUI/portala SPA framework Berlin uses. The legacy starweb URL returns
503; the new entry point is /portal/browse.tt.html.
- Search workflow is two-stage:
1. POST /portal/browse.tt.json with a JSON action body containing an
Elasticsearch-style query tree under search.json. Returns a
report_id plus hit count.
2. POST /portal/report.tt.html with {report_id, start, chunksize}
returns the HTML hit list. Each record carries a Perl Data::Dumper
block in a <pre> tag with the canonical metadata.
- The query schema (sources, search.lines, search.json tree, report
block) is taken from dokukratie/scrapers/portala.query.json (GPL-3.0)
— only structure/selectors are reused, no Python code is ported.
- DB id is "lsa.lissh"; the server validates this and rejects unknown
interfaces with an explicit errormsg.
- PDFs live under /files/drs/wp{N}/drs/d{nr}{xxx}.pdf and are served
directly without any session cookie.
What the adapter does
- search() builds a date-window query (last ~24 months) for "Antrag"
document type and returns the most recent hits. The user's free-text
query is applied as a client-side title/Urheber filter (no fulltext
search server-side yet — see "Limitations" below).
- Hits are parsed from the Perl record dumps in the report HTML:
- WEV06.main → title (Perl \x{xx} hex escapes decoded)
- WEV32.5 → relative PDF path
- WEV32.main → "Antrag <Urheber> <DD.MM.YYYY> Drucksache <b>X/YYYY</b>"
- Fraktion strings are normalised to canonical codes (CDU, SPD, GRÜNE,
FDP, AfD, LINKE, Landesregierung).
- get_document() looks up a single Drucksache by re-running the search.
- download_text() fetches the PDF and extracts text via PyMuPDF.
- bundeslaender.py: LSA's doku_system corrected from "StarWeb" to
"PARDOK", anmerkung updated with the migration story.
Limitations (deliberate, MVP)
- No server-side full-text search. The portala framework's sf index
names for LSA full-text content are not yet known; tree mutations
with sf=alAB return 0 hits. Client-side filter is "good enough" for
the next ~24 months of Anträge (≈few hundred per WP).
- LSA is still aktiv=False in bundeslaender.py — the adapter is dormant
in production until issue #2's wahlprogramm ingest and frontend
activation land.
Verified live against padoka.landtag.sachsen-anhalt.de:
- search(query="", limit=5) returned 5 current Anträge from März 2026
(LINKE + GRÜNE) with correct dates, fractions, titles and PDF URLs.
- download_text("8/6790") returned 5051 chars of real Antragstext
("ICE-Halt für Salzwedel dauerhaft erhalten").
Refs #2.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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