File upload technical issues

file upload technical issues

• Check file extension before upload
• Check file content after upload
  • Check the file extension
  • Check the content if the file extension is fake e.g. detect the MIME type using PHP: mime_content_type function
• Visus
• OS issue: file name upper case sensitive

References

• file upload technical issues (JSP forum at Coderanch)
• javascript - jQuery Ajax File Upload - Stack Overflow