scaffolding and basics

cteward-ng/README.md

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+# cteward-st-lexware Python rewrite
+# Read-only REST API backend for Lexware Vereinsverwaltung (MSSQL)

cteward-ng/__init__.py

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+"""cteward-st-lexware rewritten in Python/Flask."""

cteward-ng/app.py

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+"""Flask application factory and middleware setup."""
+
+import base64
+import logging
+from logging.handlers import RotatingFileHandler
+
+from flask import Flask, request, Response
+from flask_cors import CORS
+from flask_compress import Compress
+
+from .config import load_config
+
+
+def create_app(config_path=None):
+    """Create and configure the Flask application.
+
+    Replaces the restify server + middleware chain from startup.js.
+    """
+    app = Flask(__name__)
+    app.config.from_mapping(
+        SECRET_KEY='cteward-st-lexware',
+    )
+
+    # Load runtime config (JSON file)
+    app.cteward_config = load_config(config_path)
+
+    _setup_logging(app)
+    _setup_extensions(app)
+    _register_prehandlers(app)
+    _register_blueprints(app)
+
+    return app
+
+
+def _setup_logging(app):
+    """Setup structured JSON logging similar to bunyan."""
+    log_level = app.cteward_config.get('loglevel', 'info').upper()
+    logfile = app.cteward_config.get('logfile')
+
+    handler = (
+        RotatingFileHandler(logfile)
+        if logfile
+        else logging.StreamHandler()
+    )
+    handler.setLevel(getattr(logging, log_level, logging.INFO))
+
+    formatter = logging.Formatter(
+        '%(asctime)s %(name)s %(levelname)s %(message)s'
+    )
+    handler.setFormatter(formatter)
+
+    app.logger.handlers.clear()
+    app.logger.addHandler(handler)
+    app.logger.setLevel(handler.level)
+
+
+def _setup_extensions(app):
+    """Enable CORS and gzip compression."""
+    CORS(app)
+    Compress(app)
+
+
+def _extract_basic_username(headers):
+    """Extract username from Basic auth header for logging."""
+    auth_header = headers.get('Authorization', '')
+    if not auth_header:
+        return 'anonymous'
+    parts = auth_header.split(' ', 1)
+    if len(parts) == 2 and parts[0] == 'Basic':
+        try:
+            decoded = base64.b64decode(parts[1]).decode('utf-8')
+            return decoded.split(':')[0]
+        except Exception:
+            return 'anonymous'
+    return 'anonymous'
+
+
+def _register_prehandlers(app):
+    """Before-request hooks: extract username for logging."""
+
+    @app.before_request
+    def log_request():
+        username = _extract_basic_username(request.headers)
+        app.logger.info('%s %s %s', username, request.method, request.url)
+
+    @app.after_request
+    def www_authenticate(response):
+        """Add WWW-Authenticate header when no auth is present."""
+        if 'Authorization' not in request.headers:
+            realm = app.cteward_config.get('server', {}).get(
+                'realm', 'cteward API access'
+            )
+            response.headers['WWW-Authenticate'] = f'Basic realm="{realm}"'
+        return response
+
+
+def _register_blueprints(app):
+    """Register all route blueprints."""
+    from .views import legacy_bp
+    app.register_blueprint(legacy_bp, url_prefix='/legacy')

cteward-ng/auth.py

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+"""Authentication provider.
+
+Replaces authprovider.js:
+  - check_password: plaintext and apr1 MD5 hash verification
+  - find_botuser: bot user lookup from config
+  - find_ldapuser: LDAP authentication via ldap3
+  - authorize: full auth pipeline entry point
+"""
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+# Placeholder imports — implemented in Phase 4
+# from . import database
+# from . import memberdata
+
+
+def check_password(password, hash_value):
+    """Verify *password* against *hash_value*.
+
+    Supports plaintext and apr1 (MD5 crypt) formats.
+    Replaces Node.js apache-md5 module.
+    """
+    # Plaintext
+    if not hash_value.startswith('$'):
+        return password == hash_value
+
+    # Parse algorithm tag: $apr1$...
+    try:
+        _, algo, _ = hash_value.split('$', 2)
+    except ValueError:
+        raise ValueError("Password hashing algorithm not selected")
+
+    if algo == 'apr1':
+        # TODO Phase 4: use passlib to verify apr1 hash
+        raise NotImplementedError("apr1 verification not yet implemented")
+
+    raise ValueError(f"Unsupported password hashing algorithm: {algo}")
+
+
+def authorize(ctx):
+    """Run the full authorization pipeline.
+
+    ctx is a dict with keys: config, request, response, permissions
+    Returns ctx augmented with: username, flags, data, query, filter, permission
+    """
+    # TODO Phase 4: pipeline
+    # find_botuser -> find_ldapuser -> find_config_flags ->
+    # find_database_flags -> impersonate -> effective_permissions
+    raise NotImplementedError("Authorization pipeline not yet implemented")

cteward-ng/config.py

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+"""Configuration loader.
+
+Reads the same JSON config format as the Node.js app:
+  CTEWARD_ST_LEXWARE_CONFIG env var or /etc/cteward/st-lexware.json
+
+Applies the same defaults as startup.js:
+  mssql={}, server={}, auth={}, auth.bots={}, auth.flags={}
+"""
+
+import json
+import os
+
+
+_DEFAULT_CONFIG_PATH = '/etc/cteward/st-lexware.json'
+
+
+def load_config(config_path=None):
+    """Load and apply defaults to the JSON configuration.
+
+    Mirrors the config loading in startup.js lines 16-28.
+    """
+    path = config_path or os.environ.get(
+        'CTEWARD_ST_LEXWARE_CONFIG', _DEFAULT_CONFIG_PATH
+    )
+
+    config = {}
+    try:
+        with open(path, 'r') as fh:
+            config = json.load(fh)
+    except (FileNotFoundError, json.JSONDecodeError) as exc:
+        # Same behavior as Node.js: print warning, use defaults
+        print(f"Can't load configfile '{path}': {exc}")
+
+    # Apply defaults (mirrors startup.js)
+    config.setdefault('mssql', {})
+    config.setdefault('server', {})
+    config.setdefault('auth', {})
+    config['auth'].setdefault('bots', {})
+    config['auth'].setdefault('flags', {})
+
+    return config

cteward-ng/database.py

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+"""Database connectivity and query execution.
+
+Replaces database.js:
+  - pyodbc connection pool (via DBUtils)
+  - Health check (checkBackendOkay)
+  - Parameterized query execution (runquery)
+  - All SQL statement definitions
+  - Stats query aggregations
+"""
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+# TODO Phase 2: import pyodbc, DBUtils.PooledDB
+# import pyodbc
+# from DBUtils.PooledDB import PooledDB
+
+# Module-level connection pool
+_pool = None
+
+
+def init(config=None):
+    """Initialize the MSSQL connection pool.
+
+    Replaces database.init() from database.js.
+    Uses the same config keys: user, password, server, port, database.
+    """
+    global _pool
+    # TODO Phase 2: create PooledDB
+    raise NotImplementedError("Database not yet initialized")
+
+
+def connected():
+    """Check if the connection pool is alive."""
+    # TODO Phase 2
+    raise NotImplementedError
+
+
+def check_backend_okay():
+    """Health check: verify DB is reachable and has expected data.
+
+    Replaces checkBackendOkay() from database.js.
+    """
+    # TODO Phase 2
+    raise NotImplementedError
+
+
+def run_query(query_def, params):
+    """Execute a parameterized query and return rows as list of dicts.
+
+    Replaces runquery() from database.js.
+
+    Args:
+        query_def: dict with 'statement' (str) and 'params' (dict of names)
+                   or 'special' (str) for stats queries
+        params: dict of parameter values
+
+    Returns:
+        list of dict rows
+    """
+    # TODO Phase 2
+    raise NotImplementedError
+
+
+def run_query_stats_members():
+    """Special aggregation query for member count over time."""
+    # TODO Phase 2
+    raise NotImplementedError
+
+
+def run_query_stats_contracts():
+    """Special aggregation query for contract statistics."""
+    # TODO Phase 2
+    raise NotImplementedError
+
+
+def run_query_stats_genders():
+    """Special aggregation query for gender demographics."""
+    # TODO Phase 2
+    raise NotImplementedError
+
+
+def run_query_stats_ages():
+    """Special aggregation query for age demographics."""
+    # TODO Phase 2
+    raise NotImplementedError
+
+
+def member_lookup(crewname):
+    """Look up a single member by crewname.
+
+    Replaces memberlookup() from database.js.
+    Returns a single dict row or raises.
+    """
+    # TODO Phase 2
+    raise NotImplementedError
+
+
+# ─── SQL Statement Definitions ───────────────────────────────────────────────
+# Replacing the QUERY_* constants from database.js
+# Parameter placeholders use pyodbc '?' style instead of T-SQL '@name'
+
+QUERY_CONTRACTLIST_BY_CREWNAME = {
+    'statement': (
+        'SELECT MgVert.* FROM Adresse, MgVert '
+        'WHERE Adresse.Kurzname = ? AND MgVert.AdrNr = Adresse.AdrNr'
+    ),
+    'params': ['crewname'],
+}
+
+QUERY_CONTRACT_BY_CREWNAME_AND_CONTRACT = {
+    'statement': (
+        'SELECT MgVert.* FROM Adresse, MgVert '
+        'WHERE Adresse.Kurzname = ? AND MgVert.AdrNr = Adresse.AdrNr '
+        "AND (MgVert.VertragNr = ? OR MgVert.VertragNr = ' ' + ?)"
+    ),
+    'params': ['crewname', 'contract'],
+}
+
+QUERY_DEBITLIST_BY_CREWNAME = {
+    'statement': (
+        'SELECT MgSolln.* FROM Adresse, MgSolln '
+        'WHERE Adresse.Kurzname = ? AND MgSolln.AdrNr = Adresse.AdrNr '
+        'ORDER BY MgSolln.Jahr, MgSolln.Zeitraum'
+    ),
+    'params': ['crewname'],
+}
+
+QUERY_DEBIT_BY_CREWNAME_AND_GUID = {
+    'statement': (
+        'SELECT MgSolln.* FROM Adresse, MgSolln '
+        'WHERE Adresse.Kurzname = ? AND MgSolln.AdrNr = Adresse.AdrNr '
+        'AND MgSolln.GUID = ?'
+    ),
+    'params': ['crewname', 'guid'],
+}
+
+QUERY_MEMBERLIST = {
+    'statement': (
+        "SELECT AdrNr, Firma4, Nachname, Vorname, Kurzname, Kennung3, "
+        "Telefon3, Kontaktwoher, Eintritt, Austritt "
+        "FROM Adresse WHERE Kurzname != '' ORDER BY Nachname"
+    ),
+    'params': [],
+}
+
+QUERY_STATS_MEMBERS = {
+    'special': 'QUERY_STATS_MEMBERS',
+}
+
+QUERY_STATS_CONTRACTS = {
+    'special': 'QUERY_STATS_CONTRACTS',
+}
+
+QUERY_STATS_GENDERS = {
+    'special': 'QUERY_STATS_GENDERS',
+}
+
+QUERY_STATS_AGES = {
+    'special': 'QUERY_STATS_AGES',
+}
+
+QUERY_MEMBERLIST_RAW = {
+    'statement': 'SELECT * FROM Adresse ORDER BY Nachname',
+    'params': [],
+}
+
+QUERY_MEMBER_BY_CREWNAME = {
+    'statement': 'SELECT * FROM Adresse WHERE Kurzname = ?',
+    'params': ['crewname'],
+}
+
+QUERY_MEMBER_MEMO_BY_CREWNAME = {
+    'statement': (
+        'SELECT Memof.* FROM Adresse, Memof '
+        'WHERE Adresse.Kurzname = ? AND Memof.AdrNr = Adresse.AdrNr'
+    ),
+    'params': ['crewname'],
+}
+
+QUERY_WITHDRAWALLIST_BY_CREWNAME = {
+    'statement': (
+        'SELECT MgLast.* FROM Adresse, MgLast '
+        'WHERE Adresse.Kurzname = ? AND MgLast.Adr_Nummer = Adresse.AdrNr'
+    ),
+    'params': ['crewname'],
+}
+
+QUERY_WITHDRAWAL_BY_CREWNAME_AND_GUID = {
+    'statement': (
+        'SELECT MgLast.* FROM Adresse, MgLast '
+        'WHERE Adresse.Kurzname = ? AND MgLast.Adr_Nummer = Adresse.AdrNr '
+        'AND MgLast.GUID = ?'
+    ),
+    'params': ['crewname', 'guid'],
+}
+
+QUERY_PAYMENTLIST_BY_CREWNAME = {
+    'statement': (
+        'SELECT F5bew4.* FROM Adresse, F5bew4 '
+        'WHERE Adresse.Kurzname = ? AND F5bew4.AdrNr = Adresse.AdrNr'
+    ),
+    'params': ['crewname'],
+}

cteward-ng/filters.py

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+"""Data filter functions.
+
+Replaces filters.js:
+  - MEMBERLIST_ACTIVE_ONLY: keep only active crew/raumfahrer/passive
+  - MEMBERLIST_SELF_ONLY: keep only the requesting user's record
+  - runfilter: apply a filter function if configured
+"""
+
+
+def memberlist_active_only(ctx):
+    """Filter member list to active members only.
+
+    Replaces MEMBERLIST_ACTIVE_ONLY from filters.js.
+    The requesting user is always included regardless of status.
+    """
+    username = ctx.get('username', '')
+    newdata = []
+
+    for row in ctx.get('data', []):
+        # Always include self
+        if username == row.get('Kurzname'):
+            newdata.append(row)
+            continue
+
+        status = _realstatus(row)
+        if status not in ('crew', 'raumfahrer', 'passiv'):
+            continue
+
+        kurzname = row.get('Kurzname', '')
+        if not kurzname or kurzname[0] == 'X':
+            continue
+
+        newrow = {
+            'Kurzname': kurzname,
+            'Kennung3': row.get('Kennung3'),
+            'Eintritt': row.get('Eintritt'),
+            'Kontaktwoher': row.get('Kontaktwoher'),
+        }
+        if row.get('Nachname'):
+            newrow['Nachname'] = row['Nachname']
+        if row.get('Vorname'):
+            newrow['Vorname'] = row['Vorname']
+        if row.get('Austritt'):
+            newrow['Austritt'] = row['Austritt']
+        newdata.append(newrow)
+
+    ctx['data'] = newdata
+    return ctx
+
+
+def memberlist_self_only(ctx):
+    """Filter member list to only the requesting user.
+
+    Replaces MEMBERLIST_SELF_ONLY from filters.js.
+    """
+    username = ctx.get('username', '')
+    newdata = []
+
+    for row in ctx.get('data', []):
+        if username == row.get('Kurzname'):
+            newdata.append(row)
+            break
+
+    ctx['data'] = newdata
+    return ctx
+
+
+def runfilter(ctx):
+    """Apply the configured filter, if any.
+
+    Replaces runfilter() from filters.js.
+    """
+    filt = ctx.get('filter')
+    if filt is None:
+        return ctx
+    return filt(ctx)
+
+
+# ── Internal helpers ──────────────────────────────────────────────────────────
+
+# We import realstatus lazily to avoid circular imports
+_realstatus = None
+
+
+def _get_realstatus():
+    global _realstatus
+    if _realstatus is None:
+        from .memberdata import realstatus as _rs
+        _realstatus = _rs
+    return _realstatus
+
+
+# Override the closure to use the real function
+def memberlist_active_only(ctx):
+    rs = _get_realstatus()
+    username = ctx.get('username', '')
+    newdata = []
+
+    for row in ctx.get('data', []):
+        if username == row.get('Kurzname'):
+            newdata.append(row)
+            continue
+
+        status = rs(row)
+        if status not in ('crew', 'raumfahrer', 'passiv'):
+            continue
+
+        kurzname = row.get('Kurzname', '')
+        if not kurzname or kurzname[0] == 'X':
+            continue
+
+        newrow = {
+            'Kurzname': kurzname,
+            'Kennung3': row.get('Kennung3'),
+            'Eintritt': row.get('Eintritt'),
+            'Kontaktwoher': row.get('Kontaktwoher'),
+        }
+        if row.get('Nachname'):
+            newrow['Nachname'] = row['Nachname']
+        if row.get('Vorname'):
+            newrow['Vorname'] = row['Vorname']
+        if row.get('Austritt'):
+            newrow['Austritt'] = row['Austritt']
+        newdata.append(newrow)
+
+    ctx['data'] = newdata
+    return ctx

cteward-ng/mappings.py

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+"""Data mapping functions.
+
+Replaces mappings.js — transforms raw DB rows into API response shapes.
+
+Mappers:
+  NONE, CONTRACT, CONTRACTLIST, DEBIT, DEBITLIST, CONTRIBUTIONS,
+  MEMBER, MEMO, MEMBERLIST, MEMBERLIST_TO_LDAPCSV,
+  WITHDRAWAL, WITHDRAWALLIST
+"""
+
+from . import memberdata
+
+# Placeholder — full implementation in Phase 5
+
+MAPPERS = {}
+
+
+def none_mapper(ctx):
+    """Identity mapper — returns context unchanged."""
+    return ctx
+
+
+def contract_mapper(ctx):
+    """Map a single contract record."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def contractlist_mapper(ctx):
+    """Map a list of contract records into paginated format."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def debit_mapper(ctx):
+    """Map a single debit record."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def debitlist_mapper(ctx):
+    """Map a list of debit records into paginated format."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def contributions_mapper(ctx):
+    """Aggregate contributions (billed/paid/unpaid) across contracts and years."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def member_mapper(ctx):
+    """Map a single member record with all fields."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def memo_mapper(ctx):
+    """Parse RTF memo and extract embedded JSON data."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def memberlist_mapper(ctx):
+    """Map a list of members into paginated format."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def memberlist_to_ldapcsv_mapper(ctx):
+    """Map member list to LDAP CSV export format."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def withdrawal_mapper(ctx):
+    """Map a single withdrawal record."""
+    # TODO Phase 5
+    raise NotImplementedError
+
+
+def withdrawallist_mapper(ctx):
+    """Map a list of withdrawal records into paginated format."""
+    # TODO Phase 5
+    raise NotImplementedError

cteward-ng/memberdata.py

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+"""Member data utility functions.
+
+Replaces memberdata.js:
+  - realstatus: determine crew/passive/ex-crew/raumfahrer status
+  - datum: parse 'YYYYMMDD' strings to German date format (d.m.YYYY)
+  - datum_parsed: parse date strings via Python datetime
+  - patenarray: split comma-separated sponsor names
+  - cleanpaten: clean and rejoin sponsor names
+"""
+
+from datetime import datetime
+
+
+def realstatus(member):
+    """Determine the real membership status of *member*.
+
+    member: dict with keys Kennung3, Austritt, Kurzname
+    Returns one of: 'crew', 'raumfahrer', 'passiv', 'ex-crew', 'ex-raumfahrer'
+    """
+    if member is None:
+        raise TypeError("Need a member record to work with")
+
+    status = member.get('Kennung3') or ''
+
+    # Normalize Kennung3 prefix
+    if not status or status.startswith('check'):
+        status = 'crew'
+    if status.startswith('crew'):
+        status = 'crew'
+    if status.startswith('raumfahrer'):
+        status = 'raumfahrer'
+    if status.startswith('passiv'):
+        status = 'passiv'
+
+    # Check for expiry date (Austritt in the past)
+    austritt = member.get('Austritt')
+    if austritt and austritt != '':
+        try:
+            austritt_dt = datetime.strptime(austritt, '%Y-%m-%dT%H:%M:%S.%fZ')
+            # Set to end of that day
+            austritt_dt = austritt_dt.replace(hour=23, minute=59, second=59, microsecond=999999)
+            if austritt_dt < datetime.utcnow():
+                if status == 'crew' or status == 'passiv':
+                    status = 'ex-crew'
+                elif status == 'raumfahrer':
+                    status = 'ex-raumfahrer'
+        except ValueError:
+            pass
+
+    # Disabled crewname prefix
+    kurzname = member.get('Kurzname') or ''
+    if kurzname.startswith('disabled-'):
+        status = 'ex-crew'
+
+    return status
+
+
+def datum(isodate):
+    """Parse 'YYYYMMDD' string to German date format 'd.m.YYYY'.
+
+    Returns '1.1.1970' on failure.
+    """
+    if not isinstance(isodate, str) or len(isodate) != 8:
+        return '1.1.1970'
+    try:
+        dt = datetime.strptime(isodate, '%Y%m%d')
+        return f'{dt.day}.{dt.month + 1}.{dt.year}'
+    except ValueError:
+        return '1.1.1970'
+
+
+def datum_parsed(isodate):
+    """Parse a date string via Python datetime, return German format.
+
+    Returns '1.1.1970' on failure.
+    """
+    try:
+        dt = datetime.fromisoformat(isodate.replace('Z', '+00:00'))
+        return f'{dt.day}.{dt.month}.{dt.year}'
+    except (ValueError, AttributeError):
+        return '1.1.1970'
+
+
+def patenarray(patenstr):
+    """Split a comma-separated sponsor string into a clean list.
+
+    Handles leading/trailing whitespace and empty entries.
+    """
+    if not patenstr:
+        return []
+    if ',' not in patenstr:
+        stripped = patenstr.strip()
+        return [stripped] if stripped else []
+    return [p.strip() for p in patenstr.split(',') if p.strip()]
+
+
+def cleanpaten(patenstr):
+    """Clean and rejoin sponsor names as a single comma-separated string."""
+    return ','.join(patenarray(patenstr))

cteward-ng/permissions.py

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+"""Flag-based permission resolution.
+
+Replaces the permission logic in authprovider.js:
+  find_config_flags, find_database_flags, impersonate,
+  effective_permissions.
+"""
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+def find_config_flags(ctx):
+    """Assign permission flags from config based on username.
+
+    Replaces find_config_flags() in authprovider.js.
+    """
+    # TODO Phase 4
+    raise NotImplementedError
+
+
+def find_database_flags(ctx):
+    """Look up user in DB and assign _member_ / _astronaut_ / _passive_ flags.
+
+    Replaces find_database_flags() in authprovider.js.
+    """
+    # TODO Phase 4
+    raise NotImplementedError
+
+
+def impersonate(ctx):
+    """Handle ?impersonate= query parameter.
+
+    Replaces impersonate() in authprovider.js.
+    """
+    # TODO Phase 4
+    raise NotImplementedError
+
+
+def effective_permissions(ctx):
+    """Determine the effective permission set (lowest level wins).
+
+    Replaces effective_permissions() in authprovider.js.
+    """
+    # TODO Phase 4
+    raise NotImplementedError

cteward-ng/pytest.ini

@@ -0,0 +1,5 @@
+"""pytest configuration."""
+
+[pytest]
+testpaths = cteward-ng/tests
+pythonpath = .

cteward-ng/renderers.py

@@ -0,0 +1,70 @@
+"""Response renderers.
+
+Replaces renderers.js:
+  - JSON_OUTPUT: JSON with 2-decimal float formatting + JSONP callback support
+  - CSV_OUTPUT: semicolon-delimited CSV
+"""
+
+import csv
+import io
+import json
+
+from flask import jsonify, Response
+
+
+def json_output(ctx):
+    """Render data as JSON.
+
+    Replaces JSON_OUTPUT from renderers.js.
+    Supports JSONP via ?callback= query parameter.
+    Rounds floats to 2 decimal places.
+    """
+    data = ctx.get('data', {})
+
+    def _replacer(val):
+        if isinstance(val, float):
+            return round(val, 2)
+        return val
+
+    json_data = json.dumps(data, default=_replacer, indent=2)
+
+    from flask import request
+    callback = request.args.get('callback')
+    if callback:
+        return Response(
+            f'{callback}({json_data})',
+            mimetype='application/javascript',
+        )
+    return Response(
+        json_data,
+        mimetype='application/json; charset=utf-8',
+    )
+
+
+def csv_output(ctx):
+    """Render data as semicolon-delimited CSV.
+
+    Replaces CSV_OUTPUT from renderers.js.
+    """
+    data = ctx.get('data', [])
+
+    si = io.StringIO()
+    writer = csv.writer(
+        si,
+        delimiter=';',
+        lineterminator='\n',
+    )
+
+    if data and isinstance(data[0], dict):
+        # Write header
+        writer.writerow(data[0].keys())
+        for row in data:
+            writer.writerow(row.values())
+
+    body = si.getvalue()
+    si.close()
+
+    return Response(
+        body.encode('utf-8'),
+        mimetype='text/csv; charset=utf-8',
+    )

cteward-ng/requirements.txt

@@ -0,0 +1,10 @@
+Flask>=3.0,<4.0
+flask-cors>=4.0,<5.0
+flask-compress>=1.15,<2.0
+pyodbc>=5.0,<6.0
+DBUtils>=3.1,<4.0
+ldap3>=2.9,<3.0
+passlib>=1.7,<2.0
+gunicorn>=21.0,<23.0
+pytest>=7.0,<9.0
+pytest-mock>=3.0,<4.0

cteward-ng/tests/__init__.py

@@ -0,0 +1 @@
+# Tests for cteward-ng

cteward-ng/tests/conftest.py

@@ -0,0 +1,22 @@
+"""Test fixtures and app factory for the test suite.
+
+Replaces test/000-startup.js bootstrap logic.
+"""
+
+import pytest
+
+from cteward_ng.app import create_app
+
+
+@pytest.fixture
+def app():
+    """Create a test Flask app using the test config."""
+    app = create_app(config_path='st-lexware-test.json')
+    app.config['TESTING'] = True
+    return app
+
+
+@pytest.fixture
+def client(app):
+    """Test client for making requests."""
+    return app.test_client()

cteward-ng/tests/test_config.py

@@ -0,0 +1,55 @@
+"""Test configuration loading.
+
+Verifies that config.py loads the JSON config and applies defaults
+the same way startup.js does.
+"""
+
+import json
+import os
+import tempfile
+
+import pytest
+from cteward_ng.config import load_config
+
+
+class TestLoadConfig:
+    def test_loads_json_file(self):
+        with tempfile.NamedTemporaryFile(
+            mode='w', suffix='.json', delete=False
+        ) as fh:
+            json.dump({'mssql': {'password': 'test'}}, fh)
+            fh.flush()
+            config = load_config(fh.name)
+            os.unlink(fh.name)
+
+        assert config['mssql']['password'] == 'test'
+
+    def test_applies_defaults(self):
+        with tempfile.NamedTemporaryFile(
+            mode='w', suffix='.json', delete=False
+        ) as fh:
+            json.dump({}, fh)
+            fh.flush()
+            config = load_config(fh.name)
+            os.unlink(fh.name)
+
+        assert 'mssql' in config
+        assert 'server' in config
+        assert 'auth' in config
+        assert 'bots' in config['auth']
+        assert 'flags' in config['auth']
+
+    def test_missing_file_returns_empty(self):
+        config = load_config('/nonexistent/path.json')
+        assert config == {}
+
+    def test_invalid_json_returns_empty(self):
+        with tempfile.NamedTemporaryFile(
+            mode='w', suffix='.json', delete=False
+        ) as fh:
+            fh.write('{invalid json}')
+            fh.flush()
+            config = load_config(fh.name)
+            os.unlink(fh.name)
+
+        assert config == {}

cteward-ng/tests/test_memberdata.py

@@ -0,0 +1,86 @@
+"""Unit tests for memberdata utility functions.
+
+Replaces test/memberdata_datum.js, test/memberdata_datum_parsed.js,
+test/memberdata_patenarray.js, test/memberdata_realstatus.js.
+"""
+
+import pytest
+from cteward_ng.memberdata import (
+    realstatus,
+    datum,
+    datum_parsed,
+    patenarray,
+    cleanpaten,
+)
+
+
+class TestDatum:
+    def test_valid_yyyy_mmdd(self):
+        assert datum('20230115') == '15.2.2023'
+
+    def test_invalid_length(self):
+        assert datum('2023011') == '1.1.1970'
+
+    def test_not_a_string(self):
+        assert datum(12345) == '1.1.1970'
+
+    def test_invalid_format(self):
+        assert datum('notadate') == '1.1.1970'
+
+    def test_empty_string(self):
+        assert datum('') == '1.1.1970'
+
+
+class TestDatumParsed:
+    def test_iso_format(self):
+        result = datum_parsed('2023-01-15T00:00:00.000Z')
+        assert '2023' in result
+
+    def test_invalid(self):
+        assert datum_parsed('not-a-date') == '1.1.1970'
+
+
+class TestPatenarray:
+    def test_single_name(self):
+        assert patenarray('Alice') == ['Alice']
+
+    def test_multiple_names(self):
+        assert patenarray('Alice, Bob, Charlie') == ['Alice', 'Bob', 'Charlie']
+
+    def test_empty_string(self):
+        assert patenarray('') == []
+
+    def test_none(self):
+        assert patenarray(None) == []
+
+    def test_whitespace_handling(self):
+        assert patenarray('  Alice ,  Bob  ') == ['Alice', 'Bob']
+
+    def test_empty_entries(self):
+        assert patenarray('Alice,,Bob') == ['Alice', 'Bob']
+
+
+class TestCleanpaten:
+    def test_clean_and_rejoin(self):
+        assert cleanpaten(' Alice , Bob , Charlie ') == 'Alice,Bob,Charlie'
+
+
+class TestRealstatus:
+    def test_none_raises(self):
+        with pytest.raises(TypeError):
+            realstatus(None)
+
+    def test_default_to_crew(self):
+        assert realstatus({}) == 'crew'
+
+    def test_explicit_crew(self):
+        assert realstatus({'Kennung3': 'crew'}) == 'crew'
+
+    def test_raumfahrer(self):
+        assert realstatus({'Kennung3': 'raumfahrer'}) == 'raumfahrer'
+
+    def test_passiv(self):
+        assert realstatus({'Kennung3': 'passiv'}) == 'passiv'
+
+    def test_disabled_prefix(self):
+        assert realstatus({'Kurzname': 'disabled-someone'}) == 'ex-crew'

cteward-ng/views.py

@@ -0,0 +1,108 @@
+"""Legacy API route handlers.
+
+Replaces all server.get() calls in startup.js.
+Blueprint URL prefix: /legacy
+
+Endpoints:
+  GET /monitor
+  GET /memberlist-oldformat
+  GET /stats/members
+  GET /stats/contracts
+  GET /stats/genders
+  GET /stats/ages
+  GET /member/<crewname>
+  GET /member/<crewname>/raw
+  GET /member/<crewname>/memo
+  GET /member/<crewname>/contributions
+  GET /member/<crewname>/<contract|debit|withdrawal|payment>/[<id>]/raw/
+"""
+
+from flask import Blueprint, current_app, request
+
+legacy_bp = Blueprint('legacy', __name__)
+
+# Placeholder imports — implemented in subsequent phases
+# from . import auth
+# from . import database
+# from . import filters
+# from . import mappings
+# from . import renderers
+
+
+@legacy_bp.route('/monitor')
+def monitor():
+    """Health check endpoint."""
+    # TODO Phase 6: call database.check_backend_okay()
+    from flask import jsonify
+    return jsonify({'status': 'OK'})
+
+
+@legacy_bp.route('/memberlist-oldformat')
+def memberlist_oldformat():
+    """CSV member list for LDAP export."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/stats/members')
+def stats_members():
+    """Member count over time."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/stats/contracts')
+def stats_contracts():
+    """Contract statistics."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/stats/genders')
+def stats_genders():
+    """Gender demographics."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/stats/ages')
+def stats_ages():
+    """Age demographics."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/member/<crewname>')
+def member(crewname):
+    """Member details (or list when crewname is '' or '*')."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/member/<crewname>/raw')
+def member_raw(crewname):
+    """Raw DB member record."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/member/<crewname>/memo')
+def member_memo(crewname):
+    """RTF memo for a member."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/member/<crewname>/contributions')
+def member_contributions(crewname):
+    """Contribution summary for a member."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")
+
+
+@legacy_bp.route('/member/<crewname>/<detail_type>/raw/')
+@legacy_bp.route('/member/<crewname>/<detail_type>/<detail_id>/raw/')
+def member_detail_raw(crewname, detail_type, detail_id=None):
+    """Raw detail records (contract, debit, withdrawal, payment)."""
+    # TODO Phase 6
+    raise NotImplementedError("Not yet implemented")