[Backport 4.2.x] Fix jcloud content length is inaccurate (#8623)

* Fix jcloud content length is inaccurate

* Remove extra space

---------

Co-authored-by: tylerjmchugh <Tyler.McHugh@dfo-mpo.gc.ca>

Author: geonetworkbuild

core/src/main/java/org/fao/geonet/api/records/attachments/AbstractStore.java

@@ -240,7 +240,7 @@ public final MetadataResource putResource(ServiceContext context, String metadat
         }
 
         // Upload the resource while ensuring the input stream does not exceed the maximum allowed size.
-        try (LimitedInputStream is = new LimitedInputStream(connection.getInputStream(), maxUploadSize)) {
+        try (LimitedInputStream is = new LimitedInputStream(connection.getInputStream(), maxUploadSize, contentLength)) {
             return putResource(context, metadataUuid, filename, is, null, visibility, approved);
         }
     }

core/src/main/java/org/fao/geonet/util/LimitedInputStream.java

@@ -34,6 +34,10 @@
  */
 public class LimitedInputStream extends org.apache.commons.fileupload.util.LimitedInputStream {
 
+    /**
+     * The size of the file being uploaded if known.
+     */
+    long fileSize = -1;
 
     /**
      * Creates a new instance.
@@ -46,8 +50,25 @@ public LimitedInputStream(InputStream inputStream, long pSizeMax) {
         super(inputStream, pSizeMax);
     }
 
+    /**
+     * Creates a new instance.
+     *
+     * @param inputStream The input stream, which shall be limited.
+     * @param pSizeMax    The limit; no more than this number of bytes
+     *                    shall be returned by the source stream.
+     * @param fileSize    The size of the file being uploaded.
+     */
+    public LimitedInputStream(InputStream inputStream, long pSizeMax, long fileSize) {
+        super(inputStream, pSizeMax);
+        this.fileSize = fileSize;
+    }
+
     @Override
     protected void raiseError(long pSizeMax, long pCount) throws IOException {
         throw new InputStreamLimitExceededException(pSizeMax);
     }
+
+    public long getFileSize() {
+        return fileSize;
+    }
 }

datastorages/jcloud/src/main/java/org/fao/geonet/api/records/attachments/JCloudStore.java

@@ -42,6 +42,7 @@
 import org.fao.geonet.languages.IsoLanguagesMapper;
 import org.fao.geonet.lib.Lib;
 import org.fao.geonet.resources.JCloudConfiguration;
+import org.fao.geonet.util.LimitedInputStream;
 import org.fao.geonet.utils.IO;
 import org.fao.geonet.utils.Log;
 import org.jclouds.blobstore.ContainerNotFoundException;
@@ -301,9 +302,17 @@ protected MetadataResource putResource(final ServiceContext context, final Strin
                 // Update/set version
                 setPropertiesVersion(context, properties, isNewResource, metadataUuid, metadataId, visibility, approved, filename);
 
+                long contentLength;
+                // If the input stream is a LimitedInputStream and the file size is known then use that value otherwise use the available value.
+                if (is instanceof LimitedInputStream && ((LimitedInputStream) is).getFileSize() > 0) {
+                    contentLength = ((LimitedInputStream) is).getFileSize();
+                } else {
+                    contentLength = is.available();
+                }
+
                 Blob blob = jCloudConfiguration.getClient().getBlobStore().blobBuilder(key)
                     .payload(is)
-                    .contentLength(is.available())
+                    .contentLength(contentLength)
                     .userMetadata(properties)
                     .build();