[SalesForce] Issue Sending Image in Rich Text Field in Email through apex

I have a Visual force page to display certain fields in a certain format. As part of this the page also has a Rich Text Field. There are two buttons on the page, one to send the page as email and the other to download the page as PDF.

When a image is uploaded into the rich text field below is the behavior.

The PDF looks good with the image in it and i was able to download without any issues.
Everything looks good on the email except there is no image on the email from the RTF. It displays a little broken place holder icon rather than a image

I see some similar explanation found in a SFSE thread that is little close to what i need.
How do I insert an image from a Rich Text field in an html email template

Is there a workaround for the issue or am I missing something because i was able to download the PDF with the image without any issues ?

Below is relevant code:

VFCODE:

<apex:pageBlock rendered="{!displaydetails}">
    <div style='font-size:10pt;font-weight:bold;'>Meeting Details:</div>
    <hr width="25%" align="left"></hr>
<!-- details is the apex string for the RTF used here after nullcheck on server -->
<apex:outputText style="font-size:10pt;" value="{!details}" escape="false"/>
<br/>
<br/>
</apex:pageBlock>

APEX METHODS:

// This method is called to send an email
public PageReference sendEmail() {
    system.debug('SEND EMAIL PRESSED');
    PageReference pdf = Page.SLA_HTMLCallReport;
    pdf.getParameters().put('id',(String)model.id); 
    pdf.setRedirect(true);
    Blob b = Blob.valueOf('');
    if(!Test.isRunningTest()){
        b = pdf.getContent();
    }
    String[] toAddresses = new List<String>();
    for (String item : recipients.split(';') ) {
        toAddresses.add(item);
    }
    Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage(); 
    email.setSubject( subject );
    email.setToAddresses( toAddresses );
    email.setUseSignature(true);
    email.setHtmlBody( body + '<br/><br/>' + b.toString() );
    Messaging.SendEmailResult [] r = Messaging.sendEmail(new Messaging.SingleEmailMessage[] {email}); 
    emailSent = true;      
    return null;
}
//This method is called for saving as pdf
public PageReference savePDF() {
    PageReference pdf = Page.SLA_PDFCallReport;
    pdf.getParameters().put('id',(String)model.id); 
    return pdf;
}

Best Answer

I'm fairly sure that the problem here is that when you try to access the image on the email you are using the Salesforce internal link (the one that requires authentication).

When rendering PDFs you don't get this issue because the images are embedded into the file, so no authentication is required to view them.

You could also:

Make the Visualforce publicly available, and give the guest user access to the data displayed (careful with this, you might want to provide some kind of authentication for your users to see the data).
Host the images in another service, and refer to their links in your field. Since the Rich Text Area field is just plain HTML, you can modify the image link to point to, say, Imgur or a AWS S3 bucket instance.

Related Solutions

[SalesForce] Fetch image from Rich Text Field

Where did you get your accessToken from? If you used OAuth to establish the session then you will need to have the web OAuth scope to use the sessionid for what is essentially a screen scraping web request. Having the api scope would be sufficient for the Partner API, but for for mocking UI requests.

enter image description here

Other than that, as you have found, you need to put the sessionId/accessToken into a sid cookie along with the request.

You can check your OAuth Scopes under

Setup > App Setup > Create > Apps > [App Name].

It should appear next to Selected OAuth Scopes.

When calling /services/oauth2/authorize I'm using response_type=Token. I'm also passing a scope query string parameter that includes web. So I've specified the web scope on both the App and when initiating the OAuth process.

It appears you are using the Web Server OAuth Authentication Flow (based on the response_type=code). The scope parameter is applicable here as well.

scope
Specifies what data your application can access. See “Scope Parameter Values” in the online help for more information.

So you try modifying the authUrl line:

authUrl = environment + "/services/oauth2/authorize?response_type=code&client_id=" + clientId +
 "&redirect_uri=" + URLEncoder.encode(redirectUri, "UTF-8") +
 "&scope=full%20web";

Once you have a sessionId/accessToken, you can verify that it is valid for a web session in a browser using

https://<instanceUrl>/secur/frontdoor.jsp?sid=<accessToken>"

This should bounce you into a browser session with the sid cookie set. If it doesn't work, the session isn't valid for the web, which you will need to screenscrape an image via servlet/rtaImage.

Final solution (By @GoldenAxe), that is only an example to check that the image fetching is working correctly, of-course it can be done much neatly. In the WelcomeServlet.doGet:

String accessToken = (String) request.getSession().getAttribute(ACCESS_TOKEN);
String apiEndPoint = (String) request.getSession().getAttribute(INSTANCE_URL);
CookieManager cookieManager = new CookieManager();
cookieManager.setCookiePolicy(CookiePolicy.ACCEPT_ALL);
CookieHandler.setDefault(cookieManager);
URL url = null;
try
{
    url = new URL(apiEndPoint + "/secur/frontdoor.jsp?sid=" + accessToken);
    // open's a connection with the url specified and returns URLConnection object
    URLConnection urlConnection = url.openConnection();
    // get's the contents from this url specifies
    urlConnection.getContent();
}
catch (MalformedURLException e)
{
    // TODO Auto-generated catch block
    e.printStackTrace();
}
catch (IOException e)
{
    e.printStackTrace();
}
String sid = "";
// returns the cookie store(bunch of cookies)
CookieStore cookieStore = cookieManager.getCookieStore();
// getting cookies which returns in the form of List of type HttpCookie
List<HttpCookie> listOfcookies = cookieStore.getCookies();
for (HttpCookie httpCookie : listOfcookies)
{
    System.out.println("Cookie Name : " + httpCookie.getName() + " Cookie Value : " + httpCookie.getValue());
    if (httpCookie.getName().compareTo("sid") == 0)
    {
        sid = httpCookie.getValue();
    }
}
String urlString = "https://c.eu0.content.force.com/servlet/rtaImage?eid=ka3200000004MwH&feoid=00N20000008fSIK&refid=0EM20000000TzfR";
HttpClient client = new HttpClient();
GetMethod method = new GetMethod();
method.setRequestHeader("Cookie", "sid=" + sid);
method.setURI(new URI(urlString, true));
int returnCode = client.executeMethod(method);
if (returnCode != HttpStatus.SC_OK)
{
    System.err.println("Unable to fetch image, status code: " + returnCode);
}
InputStream imageData = method.getResponseBodyAsStream();
OutputStream out = new BufferedOutputStream(new FileOutputStream("test-image.jpg"));
for (int i; (i = imageData.read()) != -1;)
{
    out.write(i);
}
imageData.close();
out.close();
method.releaseConnection();

[SalesForce] Text in RTF field is cropped in PDF

You should try width: 100% !important.

Best Answer

Related Solutions

[SalesForce] Fetch image from Rich Text Field

[SalesForce] Text in RTF field is cropped in PDF

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