Unexpected extracts greek API response
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	Ebonetti90
	Jan 31 2019, 2:11 PM

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Hello folks at Wikimedia,
I'm sorry to report that your extracts API seems to have an unexpected response on a particular page.

Keep up the great work 💪
Enrico

Unexpected response:

{"error":{"code":"missingtitle","info":"The page you specified doesn't exist.","docref":"See https://el.wikipedia.org/w/api.php for API usage. Subscribe to the mediawiki-api-announce mailing list at &lt;https://lists.wikimedia.org/mailman/listinfo/mediawiki-api-announce&gt; for notice of API deprecations and breaking changes."},"servedby":"mw1279"}

Expected response for missing page:

{"batchcomplete":true,"query":{"pages":[{"pageid":0,"missing":true}]}}

Expected response for existing page:

{"batchcomplete":true,"query":{"pages":[{"pageid":18,"ns":0,"title":"Ελληνικός","extract":"Σαν επίθετο ελληνικά/ελληνικός σημαίνει από, ή σχετικά με την Ελλάδα, το λαό της, ή την κουλτούρα της.\n\nΑρχαία ελληνική λογοτεχνία\nΕλληνική γλώσσα\nΕλληνική μυθολογία\nΕλληνική φιλοσοφία\nΕλληνικό αλφάβητο\nΕλληνικός καφές\nΕλληνικός πολιτισμόςΕλληνική: Πρωινή εφημερίδα Αθηνών από του 1925...."}]}}

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Status	Assigned	Task
Resolved	None	T95277 Erroneous Category:Category:Pages_with_script_errors
Resolved	Steinsplitter	T111594 Commons file stuck in category
Resolved	None	T87645 Existing pages without ability to reach and obviously wrong namespace
Open	None	T109238 Clean up broken namespace pages across Wikimedia sites
Resolved	Reedy	T215028 Unexpected extracts greek API response

Event Timeline

Ebonetti90 created this task.Jan 31 2019, 2:11 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJan 31 2019, 2:11 PM

Liuxinyu970226 added a project: MediaWiki-Action-API.Jan 31 2019, 2:29 PM

jcrespo mentioned this in T215030: Unexpected extracts chinese API response.Jan 31 2019, 4:42 PM

The extension's API module is throwing an error where it would likely be better to indicate the error with a "missing" boolean or the like so other parts of the query can continue.

It may also be that the extension is getting confused by the fact that the page with page_id 298785 on elwiki has title "ΒΠ:WDATA" in namespace 0, but since "ΒΠ" is an alias for the "Βικιπαίδεια" namespace there the title parses as page "WDATA" in namespace 4 instead. Either a bug allowed creation of the prefixed title in the main namespace, or the page was created before the alias and someone forgot to run namespaceDupes.php after adding the alias. Either way, namespaceDupes.php should fix it; file a Wikimedia-Site-requests but asking for that to be run.

matej_suchanek mentioned this in T215036: Run script to fix inconsistent titles for Greek and Chinese Wikipedias.Jan 31 2019, 6:20 PM

See T87645: Existing pages without ability to reach and obviously wrong namespace.

Bugreporter added a parent task: T109238: Clean up broken namespace pages across Wikimedia sites.Feb 4 2019, 5:02 PM

In T215028#4920713, @Anomie wrote:

It may also be that the extension is getting confused by [...]

Yeah, it looks like the extension is somehow or other re-parsing the title string even though it was passed a page ID. That should be fixed in TextExtracts.

pmiazga added a project: Web-Team-Backlog (Tracking).Feb 5 2019, 3:10 PM

@Ebonetti90 Could you check this was fixed after T215036 (the original report, not the TextExtracts bug).

Yep yep, seems solved on my side too, thanks!

I'll let you know if ever anything arises again on this 👍

Enrico

Aklapper removed a subscriber: Anomie.Oct 16 2020, 5:01 PM

Restricted Application added a project: Platform Engineering. · View Herald TranscriptOct 16 2020, 5:01 PM

• AMooney removed a project: Platform Engineering.Oct 20 2020, 7:25 PM

I am going to be bold and close this as fixed, based on original reporter response, pending tasks could be fixed at parent T109238.

The textextracts issue, if persisting (unclear), should probably reported again on a separate tasks to avoid confusion with original reporting.

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Unexpected extracts greek API response
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