Adjust zbmath fetcher

CHANGELOG.md

@@ -11,6 +11,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 
 ### Added
 
+- We added the possibility to add a new entry via its zbMath ID (zbMATH can be chosen as ID type in the "Select entry type" window). [#7202](https://github.com/JabRef/jabref/issues/7202)
 - We added the extension support and the external application support (For Texshow, Texmaker and LyX) to the flatpak [#7248](https://github.com/JabRef/jabref/pull/7248)
 - We added some symbols and keybindings to the context menu in the entry editor. [#7268](https://github.com/JabRef/jabref/pull/7268)
 

src/main/java/org/jabref/logic/importer/WebFetchers.java

@@ -120,6 +120,7 @@ public static SortedSet<IdBasedFetcher> getIdBasedFetchers(ImportFormatPreferenc
         set.add(new MedlineFetcher());
         set.add(new TitleFetcher(importFormatPreferences));
         set.add(new MathSciNet(importFormatPreferences));
+        set.add(new ZbMATH(importFormatPreferences));
         set.add(new CrossRef());
         set.add(new LibraryOfCongress(importFormatPreferences));
         set.add(new IacrEprintFetcher(importFormatPreferences));

src/main/java/org/jabref/logic/importer/fetcher/ZbMATH.java

@@ -9,6 +9,7 @@
 import org.jabref.logic.cleanup.MoveFieldCleanup;
 import org.jabref.logic.formatter.bibtexfields.RemoveBracesFormatter;
 import org.jabref.logic.importer.FetcherException;
+import org.jabref.logic.importer.IdBasedParserFetcher;
 import org.jabref.logic.importer.ImportFormatPreferences;
 import org.jabref.logic.importer.Parser;
 import org.jabref.logic.importer.SearchBasedParserFetcher;
@@ -24,7 +25,7 @@
 /**
  * Fetches data from the Zentralblatt Math (https://www.zbmath.org/)
  */
-public class ZbMATH implements SearchBasedParserFetcher {
+public class ZbMATH implements SearchBasedParserFetcher, IdBasedParserFetcher {
 
     private final ImportFormatPreferences preferences;
 
@@ -60,6 +61,19 @@ public URL getURLForQuery(String query) throws URISyntaxException, MalformedURLE
         return uriBuilder.build().toURL();
     }
 
+    @Override
+    public URL getUrlForIdentifier(String identifier) throws URISyntaxException, MalformedURLException, FetcherException {
+        URIBuilder uriBuilder = new URIBuilder("https://zbmath.org/bibtexoutput/");
+        String query = "an:".concat(identifier); // use an: to search for a zbMATH identifier
+        uriBuilder.addParameter("q", query);
+        uriBuilder.addParameter("start", "0"); // start index
+        uriBuilder.addParameter("count", "1"); // return exactly one item
+
+        URLDownload.bypassSSLVerification();
+
+        return uriBuilder.build().toURL();
+    }
+
     @Override
     public Parser getParser() {
         return new BibtexParser(preferences, new DummyFileUpdateMonitor());

src/test/java/org/jabref/logic/importer/fetcher/ZbMATHTest.java

@@ -2,14 +2,14 @@
 
 import java.util.Collections;
 import java.util.List;
+import java.util.Optional;
 
 import org.jabref.logic.bibtex.FieldContentFormatterPreferences;
 import org.jabref.logic.importer.ImportFormatPreferences;
 import org.jabref.model.entry.BibEntry;
 import org.jabref.model.entry.field.StandardField;
 import org.jabref.model.entry.field.UnknownField;
 import org.jabref.model.entry.types.StandardEntryType;
-import org.jabref.support.DisabledOnCIServer;
 import org.jabref.testutils.category.FetcherTest;
 
 import org.junit.jupiter.api.BeforeEach;
@@ -41,16 +41,21 @@ void setUp() throws Exception {
         donaldsonEntry.setField(StandardField.KEYWORDS, "57N13 57R10 53C05 58J99 57R65");
         donaldsonEntry.setField(StandardField.PAGES, "279--315");
         donaldsonEntry.setField(StandardField.PUBLISHER, "International Press of Boston, Somerville, MA");
-        donaldsonEntry.setField(StandardField.TITLE, "An application of gauge theory to four dimensional topology.");
+        donaldsonEntry.setField(StandardField.TITLE, "An application of gauge theory to four dimensional topology");
         donaldsonEntry.setField(StandardField.VOLUME, "18");
         donaldsonEntry.setField(StandardField.YEAR, "1983");
         donaldsonEntry.setField(new UnknownField("zbl"), "0507.57010");
     }
 
     @Test
-    @DisabledOnCIServer("CI server has no subscription to zbMath and thus gets 401 response")
     void searchByQueryFindsEntry() throws Exception {
         List<BibEntry> fetchedEntries = fetcher.performSearch("an:0507.57010");
         assertEquals(Collections.singletonList(donaldsonEntry), fetchedEntries);
     }
+
+    @Test
+    void searchByIdFindsEntry() throws Exception {
+        Optional<BibEntry> fetchedEntry = fetcher.performSearchById("0507.57010");
+        assertEquals(Optional.of(donaldsonEntry), fetchedEntry);
+    }
 }