0001966: Drupal 5.2 + locale module + Swedish translation => StackOverflowError

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Category

Severity

Reproducibility

Date Submitted

Last Update

0001966

[Quercus]

minor

always

08-22-07 23:55

11-16-07 18:29

Reporter

ntherning

View Status

public

Assigned To

Priority

normal

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

3.1.4

Product Version

3.1.2

Product Build

Summary

0001966: Drupal 5.2 + locale module + Swedish translation => StackOverflowError

Description

The first request for a Swedish page will render almost ok. I had some issues with unicode characters not displaying correctly. The subsequent requests always cause a StackOverflowError.

On the first request for a Swedish node Drupal will read the sv texts from the locale_target table into a PHP associative array which it then serializes and saves to the cache table. Then it will generate the Swedish menu structure and serialize it and save to the cache_menu table. AFAICS the problem is when Drupal on the susequent requests tries to unserialize the previously serialized object from cache_menu. The unserialize fails and Drupal's menu functions loops indefinitely until StackOverflowError is generated.

If you have a look in the cache_menu blob you can clearly see that Swedish UTF-8 characters which normally occupy 2 bytes now need 4 bytes. The length field in the serialized strings are incorrect which I guess causes the problem with unserialize.

I've tried changing the function db_encode_blob() in includes/database.mysql.inc to

return "x'" . bin2hex($data) . "'";

That change combined with settings all encoding properties to ISO8859-1 makes the data in cache_menu become ISO8859-1 encoded. The length fields in the serialized data are however still incorrect.

I've tried with all combinations of script-encoding, unicode.runtime_encoding and unicode.output_encoding. Setting all to ISO8859-1 solved the problems I had with the unicode characters not displaying correctly on the first request. But it didn't solve the problem with StackOverflowError.

Steps To Reproduce

Additional Information

I'm using the following JDBC URL otherwise I cannot save Swedish blog entries (I get an SQLException whenever I try to):

jdbc:mysql://localhost/db?useUnicode=true&characterEncoding=UTF-8 [^]

System info:
apache-tomcat-5.5.23
java version "1.6.0"
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java HotSpot(TM) Client VM (build 1.6.0-b105, mixed mode, sharing)
Ubuntu 7.04
Linux 2.6.20-15-generic 0000002 SMP Sun Apr 15 07:36:31 UTC 2007 i686 GNU/Linux

Attached Files

Relationships

Notes
(0002225) gjvc 08-23-07 11:50	This appears to be the same issue as 1955, using postgres.

(0002502) mo 11-16-07 18:29	Closing since this issue is a duplicate of 1955. That issue was just fixed in the Postgres DB layer. This fix will be available in the next release.

Issue History
Date Modified	Username	Field	Change
08-22-07 23:55	ntherning	New Issue
08-23-07 11:50	gjvc	Note Added: 0002225
11-16-07 18:29	mo	Status	new => closed
11-16-07 18:29	mo	Note Added: 0002502
11-16-07 18:29	mo	Resolution	open => fixed
11-16-07 18:29	mo	Fixed in Version	=> 3.1.4

Mantis 1.0.0rc3[^]

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