On 19 April 2011 10:11, Kilian drehbuehne@texttheater.net wrote:

On 04/19/2011 10:01 AM, Dan Bolser wrote:

...

On 18 April 2011 12:50, Dan Bolserdan.bolser@gmail.com  wrote:

...

Hi,

All these URL resolve to the *same* underlying page, but in all cases (except the one with the correct capitalization), links to the talk page appear broken.

• http://www.bioinformatics.org/wiki/BioWiki # Correct
• http://www.bioinformatics.org/wiki/Biowiki
• http://www.bioinformatics.org/wiki/BIOWIKI
• http://www.bioinformatics.org/wiki/biowiki
• http://www.bioinformatics.org/wiki/bIoWiKi
• http://www.bioinformatics.org/wiki/bioWiki # Also works

Something very weird seems to be going on, but I don't know what!

Weird indeed. Did you try

1. upgrading MediaWiki to the latest stable version,

Yes.

2. try disabling extensions one by one to see if the problem is caused

by one of them?

Not yet. Hmm... doesn't happen with this page: http://www.bioinformatics.org/wiki/SpeciaL:VersioN

Cheers, Kilian

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The "All pages" special page shows just one of the pages: BioWiki, which was indicated as the true page name in the original post.

Just a guess but there are a lot of extensions installed. I agree with the earlier person who suggested deactivating the extensions one at a time and seeing if the behavior disappears. And since Semantic extensions are installed and this problem seems to be a matter of semantics, I would start with those extensions.

-Jim

-----Original Message----- From: Kilian [mailto:drehbuehne@texttheater.net] Sent: Wednesday, April 20, 2011 10:03 AM To: mediawiki-l@lists.wikimedia.org Subject: Re: [Mediawiki-l] Weird page capitalization issues on my wiki

Dan,

On 04/19/2011 02:08 PM, Dan Bolser wrote:

All these URL resolve to the*same* underlying page

are you sure? On closer inspection, it seems to me that five different pages with the same content exist on your wiki.

Best, Kilian

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Sorry for missing all this discussion, you all see to understand the problem correctly, so it's back to me to try the suggested fix...

So for simplicity I just tried disabling *all* extensions on the wiki in one go, and I'm seeing exactly the same behavior as described before, so I don't think it's anything to do with any of my installed extensions.

With regard to the comment that "this problem seems to be a matter of semantics", it was just my bad choice of example page. The page I used as a demonstration uses lots of fancy forms, tabs and queries, but the same problem occurs on any other page, including the Main Page (but not the special pages).

I'm thinking that it could be an issue with apache redirect configuration?

For reference, here is my LocalSettings and AdditionalSettings files: https://gist.github.com/edfd487f152048f5e34d

Cheers, Dan.

On 20 April 2011 15:22, Kilian drehbuehne@texttheater.net wrote:

On 04/20/2011 04:12 PM, Sullivan, James (NIH/CIT) [C] wrote:

...

The "All pages" special page shows just one of the pages: BioWiki, which was indicated as the true page name in the original post.

Just a guess but there are a lot of extensions installed.  I agree with the earlier person who suggested deactivating the extensions one at a time and seeing if the behavior disappears.  And since Semantic extensions are installed and this problem seems to be a matter of semantics, I would start with those extensions.

I agree. MediaWiki's normal behavior would be to respond with empty pages on requests with incorrect capitalizations of the title. (Except, of course, when only the first letter is incorrectly cased.) (Earlier I was under the wrong impression MediaWiki had some sort of built-in auto-redirect in such cases, which explains my earlier confused posts.) It must be an extension that changes this behavior. (And does so kind of poorly, because the capitalization is not corrected in the displayed title, and does not cause links with incorrect capitalizations, such as [[Talk:Biowiki]], to be displayed in blue.)

• Kilian

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On 25 April 2011 15:24, Sullivan, James (NIH/CIT) [C] sullivan@mail.nih.gov wrote:

I agree.  If you disabled all extensions (make sure you also changed back any Mediawiki files you may have modified due to a requirement of an extension), then its not a Mediawiki problem and most likely an Apache configuration issue.  You also might want to install a fresh Mediawiki instance so you can see if you get this behavior "out of the box" with Mediawiki.  If you do then that also points to Apache.  I'm not an Apache expert though, so have no idea what type of Apache configuration might cause this.

What? How is this in any way an Apache issue? Apache tells MediaWiki the correct title, and MediaWiki somehow decides to respond with the title being a-okay.

If it was an Apache issue, then why does MediaWiki think that the page title is BIOWIKI here[1]? It even takes the effort of linking to a talk page that does not exist and colours the link red as it should. Or does MediaWiki use LOWER() in its SQL, but use the $_GET['title'] for its links, rather than using the {{PAGENAME}} given by the table?

Also, you appear to have your version installed via subversion,[2] I am certain r86390 is that different from the MediaWiki 1.16.4 available on mw.org (which does not have this bug).

[1] http://www.bioinformatics.org/wiki/BIOWIKI [2] http://www.bioinformatics.org/wiki/Special:Version

Svip is right, of course ... (my morning caffiene had not taken effect yet). Apache should also not have anything to do with the capitalizations of the page names on the page. If all extensions were removed/disabled then either something was left behind, such as a modification in the includes directory, or an extension has modified the database. Do pages created after disabling the extensions have this behavior?

A fresh install of mediawiki would help clear some of this up. If a fresh install does not have this behavior, then your Mediawiki or the database has been modified, most likely by an extension.

As for whether its MySQL I don't see how since Mediawiki, or the extensions, control what goes in and what comes out.

Back to the caffiene...

-Jim

-----Original Message----- From: Svip [mailto:svippy@gmail.com] Sent: Monday, April 25, 2011 9:46 AM To: MediaWiki announcements and site admin list Subject: Re: [Mediawiki-l] Weird page capitalization issues on my wiki

On 25 April 2011 15:24, Sullivan, James (NIH/CIT) [C] sullivan@mail.nih.gov wrote:

I agree.  If you disabled all extensions (make sure you also changed back any Mediawiki files you may have modified due to a requirement of an extension), then its not a Mediawiki problem and most likely an Apache configuration issue.  You also might want to install a fresh Mediawiki instance so you can see if you get this behavior "out of the box" with Mediawiki.  If you do then that also points to Apache.  I'm not an Apache expert though, so have no idea what type of Apache configuration might cause this.

What? How is this in any way an Apache issue? Apache tells MediaWiki the correct title, and MediaWiki somehow decides to respond with the title being a-okay.

If it was an Apache issue, then why does MediaWiki think that the page title is BIOWIKI here[1]? It even takes the effort of linking to a talk page that does not exist and colours the link red as it should. Or does MediaWiki use LOWER() in its SQL, but use the $_GET['title'] for its links, rather than using the {{PAGENAME}} given by the table?

Also, you appear to have your version installed via subversion,[2] I am certain r86390 is that different from the MediaWiki 1.16.4 available on mw.org (which does not have this bug).

[1] http://www.bioinformatics.org/wiki/BIOWIKI [2] http://www.bioinformatics.org/wiki/Special:Version

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On 25 April 2011 15:14, Svip svippy@gmail.com wrote:

On 25 April 2011 16:13, Sullivan, James (NIH/CIT) [C] sullivan@mail.nih.gov wrote:

...

As for whether its MySQL I don't see how since Mediawiki, or the extensions, control what goes in and what comes out.

Well, it is technically possible, it could be MySQL, since MySQL can be set to be case insensitive.  Though, this just proves that MediaWiki shouldn't rely on finding the page title in the database, but also take the page title returned by MySQL (which would be the correct case).

I'll try to see if mysql is running in a case insensitive locale, and I'll try installing a fresh install pointing at a fresh database.

Cheers, Dan.

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On 25 April 2011 20:06, Dan Bolser daniel.bolser@gmail.com wrote:

I'll try to see if mysql is running in a case insensitive locale, and I'll try installing a fresh install pointing at a fresh database.

Can we see your _page table structure?

If you have SQL input access, do DESCRIBE `prefix_page`;

You may find this article interesting: http://dev.mysql.com/doc/refman/5.0/en/case-sensitivity.html

On 04/19/2011 04:19 PM, Peter Velan wrote:

No, its not weird, see: http://www.mediawiki.org/wiki/Manual:$wgCapitalLinks

This is only about the case of the *first* letter of a page title. It does not explain Dan's issue.

- Kilian

am 20.04.2011 09:33 schrieb Peter Velan:

am 19.04.2011 23:38 schrieb Kilian:

...

On 04/19/2011 04:19 PM, Peter Velan wrote:

...

No, its not weird, see: http://www.mediawiki.org/wiki/Manual:$wgCapitalLinks

This is only about the case of the *first* letter of a page title. It does not explain Dan's issue.

I think it does explain Dan's issue ...

1 * http://www.bioinformatics.org/wiki/BioWiki # Correct 2 * http://www.bioinformatics.org/wiki/Biowiki 3 * http://www.bioinformatics.org/wiki/BIOWIKI 4 * http://www.bioinformatics.org/wiki/biowiki 5 * http://www.bioinformatics.org/wiki/bIoWiKi 6 * http://www.bioinformatics.org/wiki/bioWiki # Also works

• 1 and 6: difference in *first* letter of page name only
• 2, 3, 4 and 5: case differences *inside* of page name

Sorry, I think my answer is not an answer at all ;-)

- a wiki page name is generally case sensitive but the 1st letter.

- for 1st letter only, special rule ... http://www.mediawiki.org/wiki/Manual:$wgCapitalLinks ... apply.

Cheers, Peter