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fix: SQL sanitation with inner join

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relikd
2025-12-03 02:19:10 +01:00
parent ba6936ca7e
commit 5c052d0627
1 changed files with 6 additions and 7 deletions
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13
abcddb2vcard/ABCDDB.py
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@@ -8,7 +8,7 @@ from base64 import b64encode
from typing import List, Dict, Any, Iterable, Optional
ITEM_COUNTER = 0
rx_query = re.compile(r'SELECT([\s\S]*)FROM[\s]+([A-Z_]+)')
rx_query = re.compile(r'SELECT([\s\S]*)FROM[\s]+([A-Z_]+)(?:[\s]+INNER JOIN\s+([A-Z_]+))?')
rx_cols = re.compile(r'[\s,;](Z[A-Z_]+)')
rx_tags = re.compile(r'\%\{[A-Za-z_]+?\}')
@@ -53,16 +53,15 @@ def buildLabel(
def sanitize(cursor: sqlite3.Cursor, query: str) -> str:
cols, table = rx_query.findall(query)[0]
cols, table, joined = rx_query.findall(query)[0]
sel_cols = {x for x in rx_cols.findall(cols)}
all_cols = {x[1] for x in cursor.execute(f'PRAGMA table_info({table});')}
if joined:
all_cols |= {x[1] for x in cursor.execute(f'PRAGMA table_info({joined});')}
missing_cols = sel_cols.difference(all_cols)
for missing in missing_cols:
if missing == 'ZSERVICENAME':
pass # ignore irrelevant fields
else:
print(f'[WARN] Column "{missing}" not found in {table}. Ignoring.',
file=sys.stderr)
print(f'[WARN] Column "{missing}" not found in {table}. Ignoring.',
file=sys.stderr)
query = query.replace(missing, 'NULL')
return query