Adding APK file validation functionalty

To implement apk file validation we are using external library. APK parser: https://github.com/hsiafan/apk-parser

components/application-mgt/org.wso2.carbon.device.application.mgt.common/src/main/java/org/wso2/carbon/device/application/mgt/common/services/ApplicationStorageManager.java

@@ -61,20 +61,22 @@ public interface ApplicationStorageManager {
      * To upload release artifacts for an Application.
      *
      * @param applicationRelease Application Release Object.
+     * @param appType Application Type.
      * @param binaryFile      Binary File for the release.
      * @throws ResourceManagementException Resource Management Exception.
      */
-    ApplicationRelease uploadReleaseArtifacts(ApplicationRelease applicationRelease, InputStream binaryFile)
+    ApplicationRelease uploadReleaseArtifact(ApplicationRelease applicationRelease, String appType, InputStream binaryFile)
             throws ResourceManagementException;
 
     /**
      * To upload release artifacts for an Application.
      *
      * @param applicationRelease applicationRelease Application release of a particular application.
+     * @param appType   Type of the application
      * @param binaryFile      Binary File for the release.
      * @throws ApplicationStorageManagementException Resource Management Exception.
      */
-    ApplicationRelease updateReleaseArtifacts(ApplicationRelease applicationRelease, InputStream binaryFile)
+    ApplicationRelease updateReleaseArtifacts(ApplicationRelease applicationRelease, String appType, InputStream binaryFile)
             throws ApplicationStorageManagementException;
 
     /**

components/application-mgt/org.wso2.carbon.device.application.mgt.core/pom.xml

@@ -76,13 +76,25 @@
                             org.wso2.carbon.user.api.*,
                             org.wso2.carbon.ndatasource.core,
                             org.wso2.carbon,
+                            javax.annotation,
+                            org.bouncycastle.cert,
+                            org.bouncycastle.cert.jcajce,
+                            org.bouncycastle.cms,
+                            org.bouncycastle.jce.provider,
+                            org.bouncycastle.util,
+                            org.xml.sax,
+                            org.xml.sax.helpers,
                             org.apache.commons.io,
                             org.apache.commons.codec.binary;version="${commons-codec.wso2.osgi.version.range}",
                             org.apache.commons.codec.digest;version="${commons-codec.wso2.osgi.version.range}",
                             org.wso2.carbon.base,
                             org.wso2.carbon.device.mgt.core.dto.*;version="${carbon.device.mgt.version}",
-                            org.wso2.carbon.device.mgt.core.dao.*;version="${carbon.device.mgt.version}"
+                            org.wso2.carbon.device.mgt.core.dao.*;version="${carbon.device.mgt.version}",
+                            net.dongliu.*
                         </Import-Package>
+                        <Embed-Dependency>apk-parser;scope=compile|runtime;inline=false</Embed-Dependency>
+                        <Embed-Transitive>true</Embed-Transitive>
+                        <Embed-StripGroup>true</Embed-StripGroup>
                         <Export-Package>
                             !org.wso2.carbon.device.application.mgt.core.internal.*,
                             org.wso2.carbon.device.application.mgt.core.*
@@ -169,6 +181,11 @@
             <groupId>org.wso2.carbon</groupId>
             <artifactId>org.wso2.carbon.core</artifactId>
         </dependency>
+        <dependency>
+            <groupId>net.dongliu</groupId>
+            <artifactId>apk-parser</artifactId>
+            <version>2.5.2</version>
+        </dependency>
     </dependencies>
 </project>
 

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/impl/ApplicationStorageManagerImpl.java

@@ -19,12 +19,15 @@
 
 package org.wso2.carbon.device.application.mgt.core.impl;
 
+import net.dongliu.apk.parser.ApkFile;
+import net.dongliu.apk.parser.bean.ApkMeta;
 import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.context.PrivilegedCarbonContext;
 import org.wso2.carbon.device.application.mgt.common.ApplicationRelease;
+import org.wso2.carbon.device.application.mgt.common.ApplicationType;
 import org.wso2.carbon.device.application.mgt.common.exception.ApplicationStorageManagementException;
 import org.wso2.carbon.device.application.mgt.common.exception.ResourceManagementException;
 import org.wso2.carbon.device.application.mgt.common.services.ApplicationStorageManager;
@@ -33,6 +36,7 @@ import org.wso2.carbon.device.application.mgt.core.util.Constants;
 import org.wso2.carbon.device.application.mgt.core.util.StorageManagementUtil;
 
 import java.io.File;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.List;
@@ -155,13 +159,41 @@ public class ApplicationStorageManagerImpl implements ApplicationStorageManager
     }
 
     @Override
-    public ApplicationRelease uploadReleaseArtifacts(ApplicationRelease applicationRelease, InputStream binaryFile)
+    public ApplicationRelease uploadReleaseArtifact(ApplicationRelease applicationRelease, String appType, InputStream binaryFile)
             throws ResourceManagementException {
 
         String artifactDirectoryPath;
         String md5OfApp;
         md5OfApp = getMD5(binaryFile);
-        //todo validate binary file.
+
+        try {
+
+            if (ApplicationType.ANDROID.toString().equals(appType)){
+                String prefix = "stream2file";
+                String suffix = ".apk";
+                Boolean isTempDelete;
+
+                File tempFile = File.createTempFile(prefix, suffix);
+                FileOutputStream out = new FileOutputStream(tempFile);
+                IOUtils.copy(binaryFile, out);
+                ApkFile apkFile = new ApkFile(tempFile);
+                ApkMeta apkMeta = apkFile.getApkMeta();
+                applicationRelease.setVersion(apkMeta.getVersionName());
+                isTempDelete = tempFile.delete();
+                if (!isTempDelete) {
+                    log.error("Temporary created APK file deletion failed");
+                }
+            }else if (ApplicationType.iOS.toString().equals(appType)){
+             //todo iOS ipa validate
+            }else if (ApplicationType.WEB_CLIP.toString().equals(appType)){
+             //todo Web Clip validate
+            }else{
+                throw new ApplicationStorageManagementException("Application Type doesn't match with supporting " +
+                        "application types " + applicationRelease.getUuid());
+            }
+
+
+
 
             if (md5OfApp != null) {
                 artifactDirectoryPath = storagePath + md5OfApp;
@@ -170,30 +202,33 @@ public class ApplicationStorageManagerImpl implements ApplicationStorageManager
                     log.debug("Artifact Directory Path for saving the application release related artifacts related with "
                             + "application UUID " + applicationRelease.getUuid() + " is " + artifactDirectoryPath);
                 }
-            try {
+
-                saveFile(binaryFile, artifactDirectoryPath + Constants.RELEASE_ARTIFACT);
+                String artifactPath = artifactDirectoryPath + Constants.RELEASE_ARTIFACT;
-                applicationRelease.setAppStoredLoc(artifactDirectoryPath);
+                saveFile(binaryFile, artifactPath);
+                applicationRelease.setAppStoredLoc(artifactPath);
                 applicationRelease.setAppHashValue(md5OfApp);
+            } else {
+                throw new ApplicationStorageManagementException("Error occurred while md5sum value retrieving process: " +
+                        "application UUID " + applicationRelease.getUuid());
+            }
         } catch (IOException e) {
             throw new ApplicationStorageManagementException(
                     "IO Exception while saving the release artifacts in the server for the application UUID "
                             + applicationRelease.getUuid(), e);
         }
 
-        } else {
+
-            log.error("Verify application existence and md5sum value retrieving process");
-        }
         return applicationRelease;
     }
 
     @Override
-    public ApplicationRelease updateReleaseArtifacts(ApplicationRelease applicationRelease, InputStream binaryFile)
+    public ApplicationRelease updateReleaseArtifacts(ApplicationRelease applicationRelease, String appType,
-            throws ApplicationStorageManagementException {
+                                                     InputStream binaryFile) throws ApplicationStorageManagementException {
 
         if (binaryFile != null) {
             try {
                 deleteApplicationReleaseArtifacts(applicationRelease.getAppStoredLoc());
-                applicationRelease = uploadReleaseArtifacts(applicationRelease, binaryFile);
+                applicationRelease = uploadReleaseArtifact(applicationRelease, appType, binaryFile);
             } catch (ApplicationStorageManagementException e) {
                 throw new ApplicationStorageManagementException("Application Artifact doesn't contains in the System", e);
             } catch (ResourceManagementException e) {