I'm currently designing a new customer portal and was wondering if it's possible to allow the user to upload a Document.

It would be easier if the user just get an inputFile option and the file that he selects is mailed to another person. I've got the apex and visualforce code for that setup but the file contained in the email is 0KB and there's nothing in the file.

Here's a part of my visualforce code

<apex:outputPanel id="MigrateBlock">
<apex:pageBlock title="Migrate Block" rendered="{!RenderMigrateType}">
<apex:pageBlockButtons >
<apex:commandButton action="{!SaveMigrate}" value="Migrate License"/>
</apex:pageBlockButtons>
<apex:pageBlockSection showHeader="false" columns="2" id="block76">

<apex:pageBlockSectionItem >
          <apex:outputLabel value="File Name" for="fileName"/>
          <apex:inputText value="{!document.name}" id="fileName"/>
        </apex:pageBlockSectionItem>

        <apex:pageBlockSectionItem >
          <apex:outputLabel value="File" for="file"/>
          <apex:inputFile value="{!document.body}" filename="{!document.name}" id="file"/>
        </apex:pageBlockSectionItem>

        <apex:pageBlockSectionItem >
          <apex:outputLabel value="New Host IP Address" for="adasds"/>
          <apex:inputText value="{!HostIpAddress}" id="adasds"/>
        </apex:pageBlockSectionItem>
        </apex:pageBlockSection>
</apex:pageBlock>
</apex:outputPanel>



And here's the Apex Code

public Document document
   {
   get{
   if (document == null)
        document = new Document();
   return document;
   }
   set;
}

public PageReference SaveMigrate()
{
document.FolderId = UserInfo.getUserId();
       insert document;

      document.body = null;
       document = new Document();
  if(HostIPAddress != null)
  {
  ContractAsset__c n = [SELECT id, Contract__r.id FROM ContractAsset__c WHERE Asset__r.Product2Code__c =: selectedAssets.Product2Code__c AND Contract__r.ContractNumber = :contractNumber LIMIT 1];
  Asset a = [SELECT Id from Asset WHERE Product2Code__c =: selectedAssets.Product2Code__c LIMIT 1];
  LicenseKey__c newData = new LicenseKey__c(ContractAsset__c = n.id,
  Ip_Address__c = HostIpAddress,
  LicenseType__c = 'Migrate',
  asset__c = a.id,
  Contract__c = n.Contract__r.id);
  sendEmail(); // Sends the email with a setDocumentAttachment
  insert newData;
  }

return null;

}

It's all for the Customer Portal. Any ideas how to mail the file without uploading it onto salesforce before?