impl /_api/plugin/refs

packages/growi-plugin-attachment-refs/src/server/routes/refs.js

@@ -10,6 +10,22 @@ module.exports = (crowi) => {
   const Page = crowi.model('Page');
   const Attachment = crowi.model('Attachment');
 
+  const { PageQueryBuilder } = Page;
+
+  /**
+   * generate RegExp instance by the 'expression' arg
+   * @param {string} expression
+   * @return {RegExp}
+   */
+  function generateRegexp(expression) {
+    // https://regex101.com/r/uOrwqt/2
+    const matches = expression.match(/^\/(.+)\/(.*)?$/);
+
+    return (matches != null)
+      ? new RegExp(matches[1], matches[2])
+      : new RegExp(expression);
+  }
+
   /**
    * return an Attachment model
    */
@@ -64,15 +80,56 @@ module.exports = (crowi) => {
   router.get('/refs', async(req, res) => {
     const user = req.user;
     const { prefix, pagePath } = req.query;
-    // eslint-disable-next-line no-unused-vars
     const options = JSON.parse(req.query.options);
 
+    // check either 'prefix' or 'pagePath ' is specified
     if (prefix == null && pagePath == null) {
       res.status(400).send('either the param \'prefix\' or \'pagePath\' must be set.');
       return;
     }
 
-    res.status(200).send({ attachments: [] });
+    // check regex
+    let regex;
+    const regexOptionValue = options.regexp || options.regex;
+    if (regexOptionValue != null) {
+      try {
+        regex = generateRegexp(regexOptionValue);
+      }
+      catch (err) {
+        res.status(400).send(`the 'regex=${options.regex}' option is invalid as RegExp.`);
+        return;
+      }
+    }
+
+    const builder = new PageQueryBuilder(Page.find());
+    builder.addConditionToListWithDescendants(prefix || pagePath)
+      .addConditionToExcludeTrashed()
+      .addConditionToExcludeRedirect();
+
+    Page.addConditionToFilteringByViewerForList(builder, user, false);
+
+    const results = await builder.query.select('id').exec();
+    const pageIds = results.map(result => result.id);
+
+    logger.debug('retrieve attachments for pages:', pageIds);
+
+    // create query to find
+    let query = Attachment
+      .find({
+        page: { $in: pageIds },
+      });
+    // add regex condition
+    if (regex != null) {
+      query = query.and({
+        originalName: { $regex: regex },
+      });
+    }
+
+    const attachments = await query
+      .populate({ path: 'creator', select: User.USER_PUBLIC_FIELDS, populate: User.IMAGE_POPULATION })
+      .exec();
+
+    res.status(200).send({ attachments });
   });
 
   return router;