[gnome-maps/wip/mlundblad/wikidata: 5/6] WIP: wikipedia: Add function to fetch article from Wikidata
- From: Marcus Lundblad <mlundblad src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-maps/wip/mlundblad/wikidata: 5/6] WIP: wikipedia: Add function to fetch article from Wikidata
- Date: Thu, 6 Oct 2022 20:56:15 +0000 (UTC)
commit ecfb2441e66383ad7495f2aa714399206dcfa485
Author: Marcus Lundblad <ml dfupdate se>
Date: Tue Oct 4 23:23:49 2022 +0200
WIP: wikipedia: Add function to fetch article from Wikidata
src/wikipedia.js | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 59 insertions(+), 1 deletion(-)
---
diff --git a/src/wikipedia.js b/src/wikipedia.js
index 80ad3a7d..24aa52fe 100644
--- a/src/wikipedia.js
+++ b/src/wikipedia.js
@@ -155,6 +155,60 @@ export function fetchArticleInfo(wiki, size, metadataCb, thumbnailCb) {
});
}
+export function fetchArticleInfoForWikidata(wikidata, defaultArticle,
+ size, metadataCb,
+ thumbnailCb) {
+ let uri = 'https://www.wikidata.org/w/api.php';
+ let encodedForm = Soup.form_encode_hash({ action: 'wbgetentities',
+ ids: wikidata,
+ format: 'json' });
+ let msg = Soup.Message.new_from_encoded_form('GET', uri, encodedForm);
+ let session = _getSoupSession();
+
+ session.send_and_read_async(msg, GLib.PRIORIRY_DEFAULT, null,
+ (source, res) => {
+ if (msg.get_status() !== Soup.Status.OK) {
+ log("Failed to request Wikidata entities: " + msg.reason_phrase);
+ metadataCb(null, {});
+ thumbnailCb(null);
+ return;
+ }
+
+ let buffer = session.send_and_read_finish(res).get_data();
+ let response = JSON.parse(Utils.getBufferText(buffer));
+
+ Utils.debug('entities: ' + JSON.stringify(response, '', 2));
+ let labels = entities?.[wikidata]?.labels;
+
+ if (!labels) {
+ Utils.debug('No labels tag in response');
+ metadataCb(null, {});
+ thumbnailCb(null);
+ }
+
+ for (let language of _getLanguages()) {
+ if (labels[language]) {
+ let article = `${language}:${labels[language].value}`;
+
+ fetchArticleInfo(article, size, metadataCb, thumbnailCb);
+ return;
+ }
+ }
+
+ // if no article reference matches a preferred language
+ if (defaultArticle) {
+ // if there's a default article from the "wikipedia" tag, use it
+ fetchArticleInfo(defaultArticle, size, metadataCb, thumbnailCb);
+ } else {
+ // otherwise use the first listed reference as fallback
+ let language = labels[0].language;
+ let article = `${language}:${labels[language].value}`;
+
+ fetchArticleInfo(article, size, metadataCb, thumbnailCb);
+ }
+ });
+}
+
function _onMetadataFetched(wiki, page, size, metadataCb, thumbnailCb) {
/* Try to get a thumbnail *before* following language links--the primary
article probably has the best thumbnail image */
@@ -218,7 +272,7 @@ function _fetchThumbnailImage(wiki, size, source, callback) {
the original article should be used. */
function _findLanguageLink(wiki, page) {
let originalLang = getLanguage(wiki);
- let languages = GLib.get_language_names().map((lang) => lang.split(/[\._\-]/)[0]);
+ let languages = _getLanguages();
if (!languages.includes(originalLang)) {
let langlinks = {};
@@ -233,3 +287,7 @@ function _findLanguageLink(wiki, page) {
}
}
}
+
+function _getLanguages() {
+ return GLib.get_language_names().map((lang) => lang.split(/[\._\-]/)[0]);
+}
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