Merge pull request #3167 from lonvia/explicit-encoding

[nominatim.git] / nominatim / api / logging.py

diff --git a/nominatim/api/logging.py b/nominatim/api/logging.py
index 6c8b1b388224f8a787977b15e7c2e2fce5aaab03..5b6d0e4dbbc03573b643e88cba43a871d7bd038a 100644 (file)
--- a/nominatim/api/logging.py
+++ b/nominatim/api/logging.py
@@ -7,11 +7,12 @@
 """
 Functions for specialised logging with HTML output.
 """
-from typing import Any, Iterator, Optional, List, Tuple, cast
+from typing import Any, Iterator, Optional, List, Tuple, cast, Union, Mapping, Sequence
 from contextvars import ContextVar
 import datetime as dt
 import textwrap
 import io
+import re
 
 import sqlalchemy as sa
 from sqlalchemy.ext.asyncio import AsyncConnection
@@ -74,23 +75,41 @@ class BaseLogger:
         """
 
 
-    def sql(self, conn: AsyncConnection, statement: 'sa.Executable') -> None:
+    def sql(self, conn: AsyncConnection, statement: 'sa.Executable',
+            params: Union[Mapping[str, Any], Sequence[Mapping[str, Any]], None]) -> None:
         """ Print the SQL for the given statement.
         """
 
-    def format_sql(self, conn: AsyncConnection, statement: 'sa.Executable') -> str:
+    def format_sql(self, conn: AsyncConnection, statement: 'sa.Executable',
+                   extra_params: Union[Mapping[str, Any],
+                                 Sequence[Mapping[str, Any]], None]) -> str:
         """ Return the comiled version of the statement.
         """
-        try:
-            return str(cast('sa.ClauseElement', statement)
-                         .compile(conn.sync_engine, compile_kwargs={"literal_binds": True}))
-        except sa.exc.CompileError:
-            pass
-        except NotImplementedError:
-            pass
-
-        return str(cast('sa.ClauseElement', statement).compile(conn.sync_engine))
-
+        compiled = cast('sa.ClauseElement', statement).compile(conn.sync_engine)
+
+        params = dict(compiled.params)
+        if isinstance(extra_params, Mapping):
+            for k, v in extra_params.items():
+                params[k] = str(v)
+        elif isinstance(extra_params, Sequence) and extra_params:
+            for k in extra_params[0]:
+                params[k] = f':{k}'
+
+        sqlstr = str(compiled)
+
+        if sa.__version__.startswith('1'):
+            try:
+                sqlstr = re.sub(r'__\[POSTCOMPILE_[^]]*\]', '%s', sqlstr)
+                return sqlstr % tuple((repr(params.get(name, None))
+                                      for name in compiled.positiontup)) # type: ignore
+            except TypeError:
+                return sqlstr
+
+        # Fixes an odd issue with Python 3.7 where percentages are not
+        # quoted correctly.
+        sqlstr = re.sub(r'%(?!\()', '%%', sqlstr)
+        sqlstr = re.sub(r'__\[POSTCOMPILE_([^]]*)\]', r'%(\1)s', sqlstr)
+        return sqlstr % params
 
 class HTMLLogger(BaseLogger):
     """ Logger that formats messages in HTML.
@@ -183,9 +202,10 @@ class HTMLLogger(BaseLogger):
         self._write(f'</dl><b>TOTAL:</b> {total}</p>')
 
 
-    def sql(self, conn: AsyncConnection, statement: 'sa.Executable') -> None:
+    def sql(self, conn: AsyncConnection, statement: 'sa.Executable',
+            params: Union[Mapping[str, Any], Sequence[Mapping[str, Any]], None]) -> None:
         self._timestamp()
-        sqlstr = self.format_sql(conn, statement)
+        sqlstr = self.format_sql(conn, statement, params)
         if CODE_HIGHLIGHT:
             sqlstr = highlight(sqlstr, PostgresLexer(),
                                HtmlFormatter(nowrap=True, lineseparator='<br />'))
@@ -276,8 +296,9 @@ class TextLogger(BaseLogger):
         self._write(f'TOTAL: {total}\n\n')
 
 
-    def sql(self, conn: AsyncConnection, statement: 'sa.Executable') -> None:
-        sqlstr = '\n| '.join(textwrap.wrap(self.format_sql(conn, statement), width=78))
+    def sql(self, conn: AsyncConnection, statement: 'sa.Executable',
+            params: Union[Mapping[str, Any], Sequence[Mapping[str, Any]], None]) -> None:
+        sqlstr = '\n| '.join(textwrap.wrap(self.format_sql(conn, statement, params), width=78))
         self._write(f"| {sqlstr}\n\n")