Merge pull request #1116 from amvanbaren/java-null-pointers

Fix a "NullPointerException" could be thrown;

Author: amvanbaren

server/src/main/java/org/eclipse/openvsx/UpstreamRegistryService.java

@@ -116,8 +116,14 @@ public ExtensionJson getExtension(String namespace, String extension, String tar
 
         try {
             var json = restTemplate.getForObject(urlTemplate, ExtensionJson.class, uriVariables);
-            makeDownloadsCompatible(json);
-            return proxy != null ? proxy.rewriteUrls(json) : json;
+            if(json != null) {
+                makeDownloadsCompatible(json);
+                if(proxy != null) {
+                    proxy.rewriteUrls(json);
+                }
+            }
+
+            return json;
         } catch (RestClientException exc) {
             if(!isNotFound(exc)) {
                 var url = UriComponentsBuilder.fromUriString(urlTemplate).build(uriVariables);
@@ -144,8 +150,14 @@ public ExtensionJson getExtension(String namespace, String extension, String tar
 
         try {
             var json = restTemplate.getForObject(urlTemplate, ExtensionJson.class, uriVariables);
-            makeDownloadsCompatible(json);
-            return proxy != null ? proxy.rewriteUrls(json) : json;
+            if(json != null) {
+                makeDownloadsCompatible(json);
+                if(proxy != null) {
+                    proxy.rewriteUrls(json);
+                }
+            }
+
+            return json;
         } catch (RestClientException exc) {
             if(!isNotFound(exc)) {
                 var url = UriComponentsBuilder.fromUriString(urlTemplate).build(uriVariables);

server/src/main/java/org/eclipse/openvsx/adapter/UpstreamVSCodeService.java

@@ -178,20 +178,22 @@ public String download(String namespace, String extension, String version, Strin
             throw propagateRestException(exc, method, urlTemplate, uriVariables);
         }
 
+        URI location = null;
         var statusCode = response.getStatusCode();
         if(statusCode.is3xxRedirection()) {
-            var location = response.getHeaders().getLocation();
-            if(proxy != null) {
-                location = proxy.rewriteUrl(location);
-            }
-
-            return location.toString();
+            location = response.getHeaders().getLocation();
         }
         if(statusCode.isError() && statusCode != HttpStatus.NOT_FOUND) {
             handleResponseError(urlTemplate, uriVariables, response);
         }
+        if(location == null) {
+            throw new NotFoundException();
+        }
 
-        throw new NotFoundException();
+        if(proxy != null) {
+            location = proxy.rewriteUrl(location);
+        }
+        return location.toString();
     }
 
     @Override
@@ -207,20 +209,22 @@ public String getItemUrl(String namespace, String extension) {
             throw propagateRestException(exc, method, urlTemplate, uriVariables);
         }
 
+        URI location = null;
         var statusCode = response.getStatusCode();
         if(statusCode.is3xxRedirection()) {
-            var location = response.getHeaders().getLocation();
-            if(proxy != null) {
-                location = proxy.rewriteUrl(location);
-            }
-
-            return location.toString();
+            location = response.getHeaders().getLocation();
         }
         if(statusCode.isError() && statusCode != HttpStatus.NOT_FOUND) {
             handleResponseError(urlTemplate, uriVariables, response);
         }
+        if(location == null) {
+            throw new NotFoundException();
+        }
 
-        throw new NotFoundException();
+        if(proxy != null) {
+            location = proxy.rewriteUrl(location);
+        }
+        return location.toString();
     }
 
     @Override

server/src/main/java/org/eclipse/openvsx/adapter/VSCodeIdService.java

@@ -105,10 +105,9 @@ private ExtensionQueryResult.Extension getUpstreamExtension(Extension extension)
         headers.setContentType(MediaType.APPLICATION_JSON);
         headers.set(HttpHeaders.ACCEPT, "application/json;api-version=" + API_VERSION);
         var result = vsCodeIdRestTemplate.postForObject(requestUrl, new HttpEntity<>(requestData, headers), ExtensionQueryResult.class);
-
-        if (result.results() != null && result.results().size() > 0) {
+        if (result != null && result.results() != null && !result.results().isEmpty()) {
             var item = result.results().get(0);
-            if (item.extensions() != null && item.extensions().size() > 0) {
+            if (item.extensions() != null && !item.extensions().isEmpty()) {
                 return item.extensions().get(0);
             }
         }

server/src/main/java/org/eclipse/openvsx/eclipse/EclipseService.java

@@ -258,6 +258,10 @@ public EclipseProfile getUserProfile(String accessToken) {
 
     private EclipseProfile parseEclipseProfile(ResponseEntity<String> response) {
         var json = response.getBody();
+        if(json == null) {
+            return new EclipseProfile();
+        }
+
         try {
             if (json.startsWith("[\"")) {
                 var error = objectMapper.readValue(json, TYPE_LIST_STRING);
@@ -373,6 +377,10 @@ public PublisherAgreement signPublisherAgreement(UserData user) {
 
     private PublisherAgreement parseAgreementResponse(ResponseEntity<String> response) {
         var json = response.getBody();
+        if(json == null) {
+            return null;
+        }
+
         try {
             PublisherAgreementResponse agreementResponse;
             if (json.startsWith("[\"")) {

server/src/main/java/org/eclipse/openvsx/search/ElasticSearchService.java

@@ -377,7 +377,7 @@ private void sortResults(NativeQueryBuilder queryBuilder, String sortOrder, Stri
     private long getMaxResultWindow() {
         if(maxResultWindow == null) {
             var settings = searchOperations.indexOps(ExtensionSearch.class).getSettings(true);
-            maxResultWindow = Long.parseLong(settings.get("index.max_result_window").toString());
+            maxResultWindow = Long.parseLong(settings.getOrDefault("index.max_result_window", "10000").toString());
         }
 
         return maxResultWindow;