Get file mimeType and pass it for being checked on UploadFileOperation class. Take into account if file extension comes in content Uri

src/com/owncloud/android/datamodel/OCFile.java

@@ -156,6 +156,15 @@ public class OCFile implements Parcelable, Comparable<OCFile> {
         return mRemotePath;
     }
 
+    /**
+     * Can be used to set the path where the file will be stored
+     * 
+     * @param remote_path to set
+     */
+    public void setRemotePath(String remote_path) {
+        mRemotePath = remote_path;
+    }
+
     /**
      * Can be used to check, whether or not this file exists in the database
      * already

src/com/owncloud/android/operations/UploadFileOperation.java

@@ -61,6 +61,10 @@ public class UploadFileOperation extends RemoteOperation {
 
     private static final String TAG = UploadFileOperation.class.getSimpleName();
 
+    private static final String URI_CONTENT_SCHEME = "content://";
+    private static final String MIME_TYPE_PDF = "application/pdf";
+    private static final String FILE_EXTENSION_PDF = ".pdf";
+
     private Account mAccount;
     private OCFile mFile;
     private OCFile mOldFile;
@@ -221,6 +225,12 @@ public class UploadFileOperation extends RemoteOperation {
                 } else {
 
                     String temporalPath = FileStorageUtils.getTemporalPath(mAccount.name) + mFile.getRemotePath();
+
+                    if (isPdfFileFromContentProviderWithoutExtension()){
+                        temporalPath += FILE_EXTENSION_PDF;
+                        mFile.setRemotePath(mFile.getRemotePath() + FILE_EXTENSION_PDF);
+                    }
+
                     mFile.setStoragePath(temporalPath);
                     temporalFile = new File(temporalPath);
 
@@ -239,7 +249,8 @@ public class UploadFileOperation extends RemoteOperation {
 
                     try {
 
-                        if (mOriginalStoragePath.startsWith("content://")) {
+                        // In case document provider schema as 'content://'
+                        if (mOriginalStoragePath.startsWith(URI_CONTENT_SCHEME)) {
 
                             Uri uri = Uri.parse(mOriginalStoragePath);
 
@@ -442,4 +453,15 @@ public class UploadFileOperation extends RemoteOperation {
     public void cancel() {
         mUploadOperation.cancel();
     }
+
+    /**
+     * Checks if content provider, using the content:// scheme, returns a file with mime-type 
+     * 'application/pdf' but file has not extension
+     * @return true if is needed to add the pdf file extension to the file
+     */
+    private boolean isPdfFileFromContentProviderWithoutExtension() {
+        return mOriginalStoragePath.startsWith(URI_CONTENT_SCHEME) && 
+                mFile.getMimetype().equals(MIME_TYPE_PDF) && 
+                !mFile.getFileName().endsWith(FILE_EXTENSION_PDF);
+    }
 }

src/com/owncloud/android/ui/activity/FileDisplayActivity.java

@@ -158,7 +158,7 @@ OnSslUntrustedCertListener, OnEnforceableRefreshListener {
     
     private OCFile mWaitingToSend;
 
-    private static final String URI_TYPE_OF_CONTENT_PROVIDER = "content://";
+    private static final String URI_CONTENT_SCHEME = "content://";
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -662,8 +662,12 @@ OnSslUntrustedCertListener, OnEnforceableRefreshListener {
 
     private void requestSimpleUpload(Intent data, int resultCode) {
         String filepath = null;
+        String mimeType = null;
+
+        Uri selectedImageUri = data.getData();
+
         try {
-            Uri selectedImageUri = data.getData();
+            mimeType = getContentResolver().getType(selectedImageUri);
 
             String filemanagerstring = selectedImageUri.getPath();
             String selectedImagePath = getPath(selectedImageUri);
@@ -696,9 +700,8 @@ OnSslUntrustedCertListener, OnEnforceableRefreshListener {
         if (!remotepath.endsWith(OCFile.PATH_SEPARATOR))
             remotepath += OCFile.PATH_SEPARATOR;
 
-        if (filepath.startsWith(URI_TYPE_OF_CONTENT_PROVIDER)) {
-            // The query, since it only applies to a single document, will only return
-            // one row. 
+        if (filepath.startsWith(URI_CONTENT_SCHEME)) {
+
             Cursor cursor = MainApp.getAppContext().getContentResolver()
                     .query(Uri.parse(filepath), null, null, null, null, null);
 
@@ -706,9 +709,10 @@ OnSslUntrustedCertListener, OnEnforceableRefreshListener {
                 if (cursor != null && cursor.moveToFirst()) {
                     String displayName = cursor.getString(
                             cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
-                    Log.i(TAG, "Display Name: " + displayName);
+                    Log.i(TAG, "Display Name: " + displayName + "; mimeType: " + mimeType);
+
+                    remotepath += displayName + getComposedFileExtension(filepath);
 
-                    remotepath += displayName;
                 }
             } finally {
                 cursor.close();
@@ -720,6 +724,7 @@ OnSslUntrustedCertListener, OnEnforceableRefreshListener {
 
         i.putExtra(FileUploader.KEY_LOCAL_FILE, filepath);
         i.putExtra(FileUploader.KEY_REMOTE_FILE, remotepath);
+        i.putExtra(FileUploader.KEY_MIME_TYPE, mimeType);
         i.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_SINGLE_FILE);
         if (resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)
             i.putExtra(FileUploader.KEY_LOCAL_BEHAVIOUR, FileUploader.LOCAL_BEHAVIOUR_MOVE);
@@ -1034,7 +1039,7 @@ OnSslUntrustedCertListener, OnEnforceableRefreshListener {
      * @return Whether the Uri is from a content provider as kind "content://..."
      */
     public static boolean isContentDocument(Uri uri) {
-        return uri.toString().startsWith(URI_TYPE_OF_CONTENT_PROVIDER);
+        return uri.toString().startsWith(URI_CONTENT_SCHEME);
     }
 
     /**
@@ -1946,4 +1951,21 @@ OnSslUntrustedCertListener, OnEnforceableRefreshListener {
     private void sortByName(boolean ascending){
         getListOfFilesFragment().sortByName(ascending);
     }
+
+    /**
+     * Get the file extension if it is on path as type "content://.../DocInfo.doc"
+     * @param filepath: Content Uri converted to string format
+     * @return String: fileExtension (type '.pdf'). Empty if no extension
+     */
+    private String getComposedFileExtension(String filepath) {
+        String fileExtension = "";
+        String fileNameInContentUri = filepath.substring(filepath.lastIndexOf("/"));
+
+        // Check if extension is included in uri
+        int pos = fileNameInContentUri.lastIndexOf('.');
+        if (pos >= 0) {
+            fileExtension = fileNameInContentUri.substring(pos);
+        }
+        return fileExtension;
+    }
 }