Multimedia macro does not support some special characters in filename

Multimedia Macro does not support some special characters in filename

Steps to Reproduce

1. Upload a video format attachment onto a Confluence page
   • The attachment file name should include any special chracters below

     + % # & '
     

     MP4 format is used in this test

2. Edit the page and insert a Multimedia Macro, choose the attachment uploaded from the previous steps
   Example Storage Format

   <p>
     <ac:structured-macro ac:macro-id="ce9a6432-928d-4ba2-a301-15d819a76e7e" ac:name="multimedia" ac:schema-version="1">
       <ac:parameter ac:name="name">
         <ri:attachment ri:filename="this + that.mp4"/>
       </ac:parameter>
     </ac:structured-macro>
   </p>
   

3. Save the page

Expected Results

Multimedia macro is showing the video properly in the View Mode

Actual Results

Multimedia macro cannot render the video file due to the special character in file name

Note

Different special characters is trigerring different behavior where + % # will show the error message below:

No video with supported format and MIME type found

While & ' show the error message below:

Error rendering macro 'multimedia'
com.atlassian.renderer.v2.macro.MacroException: Cannot find attachment 'this & that.mp4'

this & that.mp4 is the attachment file name used in this test

Workaround

Avoid using the known special chracters that will cause this issue in the file name