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Bug #55417 Occasionally and aleatory error 500
Submitted: 2011-08-14 03:00 UTC Modified: 2011-08-28 06:12 UTC
Avg. Score:5.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: daniel at stonek dot com Assigned:
Status: Not a bug Package: Pspell related
PHP Version: Irrelevant OS: Centos 5.6
Private report: No CVE-ID: None
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 [2011-08-14 03:00 UTC] daniel at stonek dot com
1) Php 5.1.6 (last from Centos 5 repositories

pspell_suggest drives me to error 500 in few cases.

'./configure' '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' 
'--target=x86_64-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr' '--exec-
prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--
datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--
libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/usr/com' '--
mandir=/usr/share/man' '--infodir=/usr/share/info' '--cache-
file=../config.cache' '--with-libdir=lib64' '--with-config-file-path=/etc' '--
with-config-file-scan-dir=/etc/php.d' '--disable-debug' '--with-pic' '--disable-
rpath' '--without-pear' '--with-bz2' '--with-curl' '--with-exec-dir=/usr/bin' '-
-with-freetype-dir=/usr' '--with-png-dir=/usr' '--enable-gd-native-ttf' '--
without-gdbm' '--with-gettext' '--with-gmp' '--with-iconv' '--with-jpeg-
dir=/usr' '--with-openssl' '--with-png' '--with-pspell' '--with-expat-dir=/usr' 
'--with-pcre-regex=/usr' '--with-zlib' '--with-layout=GNU' '--enable-exif' '--
enable-ftp' '--enable-magic-quotes' '--enable-sockets' '--enable-sysvsem' '--
enable-sysvshm' '--enable-sysvmsg' '--enable-track-vars' '--enable-trans-sid' '-
-enable-yp' '--enable-wddx' '--with-kerberos' '--enable-ucd-snmp-hack' '--with-
unixODBC=shared,/usr' '--enable-memory-limit' '--enable-shmop' '--enable-
calendar' '--enable-dbx' '--enable-dio' '--with-mime-
magic=/usr/share/file/magic.mime' '--without-sqlite' '--with-libxml-dir=/usr' '-
-with-xml' '--with-system-tzdata' '--enable-force-cgi-redirect' '--enable-pcntl' 
'--with-imap=shared' '--with-imap-ssl' '--enable-mbstring=shared' '--enable-
mbstr-enc-trans' '--enable-mbregex' '--with-ncurses=shared' '--with-gd=shared' 
'--enable-bcmath=shared' '--enable-dba=shared' '--with-db4=/usr' '--with-
xmlrpc=shared' '--with-ldap=shared' '--with-ldap-sasl' '--with-
mysql=shared,/usr' '--with-mysqli=shared,/usr/lib64/mysql/mysql_config' '--
enable-dom=shared' '--with-dom-xslt=/usr' '--with-dom-exslt=/usr' '--with-
pgsql=shared' '--with-snmp=shared,/usr' '--enable-soap=shared' '--with-
xsl=shared,/usr' '--enable-xmlreader=shared' '--enable-xmlwriter=shared' '--
enable-fastcgi' '--enable-pdo=shared' '--with-pdo-odbc=shared,unixODBC,/usr' '--
with-pdo-mysql=shared,/usr/lib64/mysql/mysql_config' '--with-pdo-
pgsql=shared,/usr' '--with-pdo-sqlite=shared,/usr' '--enable-dbase=shared'

PSpell Support	enabled

General php.ini
Safe Mode Off
Max Exec Time 45
Max Input Time 60
Memory Limit 64M
Register Globals Off
Post Max Size 15M
mysql.allow_persistent = off

6) PHP configured with --disable-debug

Test script:
$word = '1veja';
$pspell_config = pspell_config_create("es"); 
pspell_config_ignore($pspell_config, 4);   
pspell_config_personal($pspell_config, "/path-to/dictionary.pws"); 
//dictionary.pws contains regular spanish words
$dictionary_link = pspell_new_config($pspell_config);          
if (!pspell_check($dictionary_link, $word)) {   
    $suggestions = pspell_suggest($dictionary_link, $word);    

Some $word examples:
1veja -> error
2veja -> error
2vejastro -> no error
5veja -> no error
12veja -> no error
veja1 -> error
veja5 -> no error
bo0las -> error
bo0las -> error
bo5las -> error
bo15las -> no error
5bolas -> error

Expected result:
If $word='5veja' pspell_suggest array is ('vieja', 'oveja', 'verja', 'ceja', 
'viejo', 'veía', 'deja', 'reaja', 'teja', 'vela', 'vena', 'vera', 'veta') using my 
I expect from '0veja', '1veja', '2veja' .... same result as '5veja'

Actual result:
Error 500. Internal server error.


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 [2011-08-14 14:20 UTC] daniel at stonek dot com
To be sure it is a pspell_suggest problem, I added pair of mail('me',....) just 
before and after this function.  First mail is always received but the second 
one isn't in those error 500 cases.

Web browsers: Internal Server Error
httpd error log (my test):

[Sun Aug 14 09:47:19 2011] [warn] (104)Connection reset by peer: mod_fcgid: read 
data from fastcgi server error.
[Sun Aug 14 09:47:19 2011] [error] [client XXX.50.78.197] Premature end of 
script headers: file.php

I think I found something like a pattern (there are inclusions and exclusions)
SOME plurals and an intercalated single number in 5 letters words.
'5bolas', 'bo5las' and any string with '5' in any position of 'bolas' get the 
'5vejas', '0vejas', 'vej0as', 'monos6', '3cocos', '0pitos', 'bocas6'
Without the number, almost all these samples belong to my dictionary but 'vejas'
Strangely, 'vejas' and 'veja' does not get any suggestion while '12vejas' shows 
10 good ones like 'ovejas' (sheeps).
Some exceptions: 'pinos', 'nubes'. Anywhere you add a number you get good 

Thank you.
 [2011-08-14 19:53 UTC] daniel at stonek dot com
Well, it seems I found a kind of solution for my particular case: adding a white 
space at the beginning o ending of the word.
Results are no exactly the same but differences are disposable.
There's a thing to care about: ask for pspell_suggestion only if the word is not 
in your dictionary. Adding a blank space before a know word would end in an 
error 500.
'co0cos' and '0cocos' are not in my dictionary, they return an error 500
' co0cos' and ' 0cocos' are not in my dictionary, they return good suggestions 
'cocos' is in my dictionary so pspell_suggestion is not applied
' cocos' is not in my dictionary and it returns an error 500 !!!
 [2011-08-28 06:12 UTC]
-Status: Open +Status: Bogus
 [2011-08-28 06:12 UTC]
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