Mediawiki-api January 2011

mediawiki-api@lists.wikimedia.org

26 participants
18 discussions

Need to extract abstract of a wikipedia page
by aditya srinivas 23 Nov '23

23 Nov '23

Hello, I am writing a Java program to extract the abstract of the wikipedia page given the title of the wikipedia page. I have done some research and found out that the abstract with be in rvsection=0 So for example if I want the abstract of 'Eiffel Tower" wiki page then I am querying using the api in the following way. http://en.wikipedia.org/w/api.php?action=query&prop=revisions&titles=Eiffel… and parse the XML data which we get and take the wikitext in the tag <rev xml:space="preserve"> which represents the abstract of the wikipedia page. But this wiki text also contains the infobox data which I do not need. I would like to know if there is anyway in which I can remove the infobox data and get only the wikitext related to the page's abstract Or if there is any alternative method by which I can get the abstract of the page directly. Looking forward to your help. Thanks in Advance Aditya Uppu

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policy on using Wikipedia API to contact emailable users via email
by Raymond Yee 31 Jan '11

31 Jan '11

Hi everyone, I'm involved in a project that would like to contact Wikipedia users via email. I'm wondering whether I will need to get approval from the Bot Approval Group (BAG) to run a script that will contact up to several thousand emailable users via the Wikipedia API (to ask users to participate in a research study.) I'm under the impression that 1) since I can email users using the API without special privileges and 2) I wouldn't be making any edits to the Wikipedia, I wouldn't need approval from BAG. However, is the possibility that my emails will be construed as spam and my script and account be blocked as a result? Should I run this scenario by BAG before running my email script? Thanks, -Raymond (User:RaymondYee)

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SearchBox - Getting result from another site, where mediawiki has been installed.
by comp.wildsoft＠gmail.com 31 Jan '11

31 Jan '11

Hi everyone, I have 2 sites - I have installed mediawiki to one of my sites. Now, can I use a search box on my another site to fetch results from mediawiki (first site) and post on my second site? Thanks beforehand.

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Help with user edits script
by Sreejith K. 30 Jan '11

30 Jan '11

Hi, I joined this group today in the hope that I will get help with one API issue I am having now. I am trying to get the number of user edits through an AJAX call. I have tested this script in English Wikipedia and Malayalam Wikipedia and it works there in all browsers. But this script is not working in *Wikipedia Commons*. Pasting my script below. Any help with this is appreciated. /***********************************************************************************************************/ *function* liveEditCounter(username) { *var* xhr; *try* { xhr = *new* XMLHttpRequest(); } *catch*(e) { xhr = *new* ActiveXObject("Microsoft.XMLHTTP"); } xhr.onreadystatechange = *function*() { *if*(xhr.readyState == 4) { *if*(xhr.status == 200 || xhr.status == 0) { *var* jsonOutput = *eval*('(' + xhr.responseText + ')'); document.getElementById("firstHeading").innerHTML = document.getElementById( "firstHeading").innerHTML + " (Edits: " + jsonOutput.query.users[0]. editcount + ")"; } } }; xhr.open('GET', " http://commons.wikipedia.org/w/api.php?action=query&list=users&ususers="+ username+"&usprop=editcount&format=json", *true*); xhr.send(*null*); } /***********************************************************************************************************/ The issue here is that xhr.responseText is returning me a blank value. Thanks for the help in advance. - Sreejith K.

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BREAKING CHANGE: ApiUpload session keys are no longer integers but strings
by Bryan Tong Minh 29 Jan '11

29 Jan '11

Hello, As of r75906 [1] or one of its related revisions, the sessionkey returned by action=upload is no longer an integer but a string. This may affect you if your client library is written in a strongly, statically typed language such as C or C#. This revision is part of MediaWiki 1.17, which is tentatively slated for deployment on Wikimedia in one or two weeks and for release a month or so after that. Other breaking changes previously announced on this list and not yet live on Wikimedia will also go live then. Best regards, Bryan [1] http://www.mediawiki.org/wiki/Special:Code/MediaWiki/75906

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Some Errors for Invoking the Wiki API, Please Help me
by Zhihua Wu 25 Jan '11

25 Jan '11

Dear all, I have encountered a problem when I invoke Wiki API in C# by "POST". The result I get is that: <?xml version="1.0" ?> - <api> - <query> - <allpages> My code: String WikiURL = "http://en.wikipedia.org/w/api.php"; Encoding myEncoding = Encoding.GetEncoding("UTF-8"); Uri url = new Uri(WikiURL); HttpWebRequest http = (HttpWebRequest)HttpWebRequest.Create(url); http.Method = "POST"; http.ContentType = "application/x-www-form-urlencoded"; http.UserAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; InfoPath.3; MS-RTC LM 8)"; http.Accept = "image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*"; http.Headers.Add("Accept-Language","en-us"); http.Headers.Add("Accept-Charset","utf-8"); byte[] bytePostDdata = Encoding.UTF8.GetBytes(postData); http.ContentLength = bytePostDdata.Length; using (Stream postStream = http.GetRequestStream()) { postStream.Write(bytePostDdata, 0, bytePostDdata.Length); postStream.Close(); } HttpWebResponse response = http.GetResponse() as HttpWebResponse; StreamReader stream = new StreamReader(response.GetResponseStream(), myEncoding); string result = stream.ReadToEnd(); response.Close(); stream.Close(); It's wrong; first the pageid is not right ; sencond, the title is not available in the wiki. The encoding and decoding both use "utf-8". I have tried many methods, but I still can't solve it. Please give me a help. I need that. But when I access wiki in IE8.0 or firefox by "GET", the result is right. I can't get where is wrong. -----Original Message----- From: mediawiki-api-bounces(a)lists.wikimedia.org [mailto:mediawiki-api-bounces@lists.wikimedia.org] On Behalf Of mediawiki-api-request(a)lists.wikimedia.org Sent: Tuesday, January 25, 2011 10:35 AM To: mediawiki-api(a)lists.wikimedia.org Subject: Mediawiki-api Digest, Vol 43, Issue 5 Send Mediawiki-api mailing list submissions to mediawiki-api(a)lists.wikimedia.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.wikimedia.org/mailman/listinfo/mediawiki-api or, via email, send a message with subject or body 'help' to mediawiki-api-request(a)lists.wikimedia.org You can reach the person managing the list at mediawiki-api-owner(a)lists.wikimedia.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Mediawiki-api digest..." Today's Topics: 1. Re: Retrieving images instead of math markup (Alex Brollo) 2. What is the Full URL of the images returned by a wikipedia query... (A O) 3. Re: What is the Full URL of the images returned by a wikipedia query... (Betacommand) 4. Re: What is the Full URL of the images returned by a wikipedia query... (Brad Jorsch) 5. header intact (Zhihua Wu) ---------------------------------------------------------------------- Message: 1 Date: Thu, 20 Jan 2011 17:31:37 +0100 From: Alex Brollo <alex.brollo(a)gmail.com> Subject: Re: [Mediawiki-api] Retrieving images instead of math markup To: "MediaWiki API announcements & discussion" <mediawiki-api(a)lists.wikimedia.org> Message-ID: <AANLkTik0xoW59-TGtYYkew7XAxEgNvz67FxnpRA2octR(a)mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" 2011/1/20 Gabriel Sandor <gabi.t.sandor(a)gmail.com> > So eventually I tried this and indeed it works as expected. I have one > more question though. > > I've seen that most of the complex math formulas are converted into > .png images with some long names - for instance, the > <math>\iiiint\limits_F \, dx\,dy\,dz\,dt</math> formula (triple > integral) is converted into an image with the name > 49005f50f3ba2dfade3a265ebe363ee9.png. I'd like to know, is this file > name unique for each formula ? And is it persisted on the wiki's > server indefinitely, just like other images in articles ? To be more > clear, is the triple integral formula always going to be associated to > this 49005f50f3ba2dfade3a265ebe363ee9.png > file ? > I'm trying to implement a cache mechanism in my app that tries to also > deal with images generated from math markup (besides usual images in > articles), that's why I have this curiosity. I'd like to know if I can > safely associate a math markup string with a file name so that there's > no need to retrieve the image from the server again when I encounter that formula. > > On Mon, Dec 13, 2010 at 1:23 PM, Roan Kattouw <roan.kattouw(a)gmail.com>wrote: > >> 2010/12/13 Gabriel Sandor <gabi.t.sandor(a)gmail.com>: >> > Is it possible to retrieve (preferably via the MediaWiki API) an >> > image representing a mathematical formula given in the <math> tags >> > that are frequently encountered in Wikipedia articles ? >> There's no direct way to do this, although I guess it could be >> implemented. A workaround would be to do something like >> http://en.wikipedia.org/w/api.php?action=parse&text= >> <math>\gamma=\frac{1}{\sqrt{1-v^2}}</math>&format=yamlfm >> , which will give you the HTML generated for this <math> tag, which >> could be an image (like in this case), or HTML if the formula is >> sufficiently simple (try a^2+b^2=c^2 for instance). >> >> Roan Kattouw (Catrope) >> > Yes, the name is unique, I discovered by reverse engineering that it is merely "the MD5 transformation of the normalized TeX code". An intelligent trick that, I guess, points directly on the png image without any need to calculate it again: I presume that the name only is calculated, and, if the png exists, it is uploaded! The "normalized TeX code", I guess, is the text that you can see browsing the html code, into the "alt" attribute of the image tag. There are online free MD5 coders somewhere into the web, try the conversion of alternate text. Nothing of this is documented, I discovered it by myself; can be, I'm absolutely wrong. :-) Alex

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header intact
by Zhihua Wu 24 Jan '11

24 Jan '11

Hi, I have been subscribed to the list. And I want to know how to solve my problem proposed before.

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What is the Full URL of the images returned by a wikipedia query...
by A O 24 Jan '11

24 Jan '11

If I run the following URL, I receive the following xml in return. My question is... The xml returned is meant to be a list of images on a specific page, which it is!BUT I don't know how I would reference these images in order to have them appear in my page. What is the full URL of these images? ANyone? http://en.wikipedia.org/w/api.php?action=query&list=allimages&ailimit=10&ai… <?xml version="1.0"?> <api> <query> <allimages> <img name="New_Jersey_Devils'_Retired_Numbers.jpg" size="3587985" width="4000" height="3000" mime="image/jpeg" /> <img name="New_Jersey_Devils_logo.svg" size="6176" width="159" height="160" mime="image/svg+xml" /> <img name="New_Jersey_Devils_old_logo.svg" size="6206" width="159" height="160" mime="image/svg+xml" /> <img name="New_Jersey_Drive.jpg" size="70297" width="580" height="864" mime="image/jpeg" /> <img name="New_Jersey_Drive_2.jpg" size="11227" width="200" height="197" mime="image/jpeg" /> <img name="New_Jersey_Drive_Vol_1.jpg" size="16005" width="240" height="240" mime="image/jpeg" /> <img name="New_Jersey_Grizzlies.PNG" size="36160" width="150" height="150" mime="image/png" /> <img name="New_Jersey_Guber_1997.PNG" size="5910" width="251" height="450" mime="image/png" /> <img name="New_Jersey_Guber_2001.PNG" size="5902" width="251" height="450" mime="image/png" /> <img name="New_Jersey_Guber_2005.PNG" size="5835" width="251" height="450" mime="image/png" /> </allimages> </query> <query-continue> <allimages aifrom="New Jersey Human Services Police.jpg" /> </query-continue> </api>

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Retrieving images instead of math markup
by Gabriel Sandor 20 Jan '11

20 Jan '11

Hi everyone, Is it possible to retrieve (preferably via the MediaWiki API) an image representing a mathematical formula given in the <math> tags that are frequently encountered in Wikipedia articles ? It would be very helpful if there were a way to "expand" these tags directly into images, similarly to how the "templates=expand" string appended to the query string automatically expands most of the templates in an article's wikitext; otherwise, a section of the API or of the site (such as a Special page) that can make this conversion for individual fragments would also be very helpful. Thanks in advance, Gabriel

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is there a way to get the English name of a language?
by Kai Carver 18 Jan '11

18 Jan '11

Hello, Is there a way for the API to tell me the English name of a language? For example, using the code "fr", I'd like it to get "French" (not "Français"). This API call gives me a list of all the languages, with their local names, but I would like their English names: http://en.wikipedia.org/w/api.php?action=query&meta=siteinfo&siprop=languag… <lang code="en" xml:space="preserve">English</lang> <lang code="fr" xml:space="preserve">Français</lang> <lang code="es" xml:space="preserve">Español</lang> <lang code="ja" xml:space="preserve">日本語</lang> <lang code="ru" xml:space="preserve">Русский</lang> This page lists all the Wikipedias, with the English name for the language in the second column, but I don't know whether that info is accessible by API: http://meta.wikimedia.org/wiki/List_of_Wikipedias#1_000_000.2B_articles 1 English English en 3 French Français fr 7 Spanish Español es 6 Japanese 日本語 ja 10 Russian Русский ru Thank you, and happy birthday Wikipedia! Kai Carver (Kaicarver) Paris, France

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Mediawiki-api January 2011