Smalltalk › Cincom › VisualWorks

how to embed image like a jpg or png into email

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

5 messages Options

squeakman

how to embed image like a jpg or png into email

Greetings,

I would like to send an email with an embedded .png file in it. The code is:

msg := MailMessage new.
msg from: '[hidden email]'.
msg to: '[hidden email]'.
msg subject: 'Test'.
relMsg := MimeEntity newcontentType:'multipart/alternative';
yourself.

" add the plain text message"
partMsg := MimeEntity newTextPlain.
partMsg contents: 'this is a test message'.
relMsg addPart: partMsg.

"add the png file"
img := MimeEntity new.
img contentType: (MimeTypeDescriptor guessFromExtension: 'png').
img contents: self getLogo. "answers a ByteArray of logo.png"
relMsg addPart: img.
msg addPart: relMsg.

I send the msg using aSMTPClient. The sending mechanism works but I
never get the .png file in the sent email.

Is this the correct way to use MimeEntity to send an embedded .png file?

Thanks,
Frank

_______________________________________________
vwnc mailing list
[hidden email]
http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

squeakman

Re: how to embed image like a jpg or png into email

I figured that I have to use something like <img src=cid:img-1/> to
reference my embedded image.

My code now looks like:

| msg client partMsg img |

msg := MailMessage new.
msg from: '[hidden email]'.
msg to: '[hidden email]'.
msg subject: 'Test'.

partMsg := MimeEntity newTextPlain.
partMsg contents: 'this is a test message'.
msg addPart: partMsg.
partMsg := MimeEntity newTextHTML.

"the HTML that references the image (png) file"
partMsg contents: '<html><body><h2>A title</h2> Some text in here<br/>
<img src=cid:img-1/> </body></html>'.
msg addPart: partMsg.

img := MimeEntity fileName: 'logo.png'.
img contentId: 'img-1'.
msg addPart: img.

This successfully downloads the logo.png file but it is shown as an
attachment in hotmail - logo.png is not embedded in the email.

Is this the right approach?

Thanks,
Frank

_______________________________________________
vwnc mailing list
[hidden email]
http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

Holger Kleinsorgen

Re: how to embed image like a jpg or png into email

squeakman wrote

I figured that I have to use something like <img src=cid:img-1/> to
reference my embedded image.

You're almost there ;) You need to combine HTML and image with content type "multipart/related"

HTML + image:

| msg client img html |

msg := MailMessage new.
msg contentType: 'multipart/related'.
msg from: '<sender>'.
msg to: '<receiver>'.
msg subject: 'Test'.

html := MimeEntity newTextHTML.
html contents: '<html><body>

A title

Some text in here<br/>
<img src="cid:img-1"/> </body></html>'.
msg addPart: html.

img := MimeEntity fileName: '<path to image file>'.
img contentId: 'img-1'.
img contentDisposition: 'inline'.
msg addPart: img.

client := Net.SMTPClient host: '<mailserver>'.
....client setup....
client send: msg.

Plain text and HTML + image as alternatives:

| msg client img html plainMsg htmlMsg |

msg := MailMessage new.
msg contentType: 'multipart/alternative'.
msg from: '<sender>'.
msg to: '<receiver>'.
msg subject: 'Test'.

plainMsg := MimeEntity newTextPlain.
plainMsg contents: 'Some text in here'.
msg addPart: plainMsg.

htmlMsg := MimeEntity new.
htmlMsg contentType: 'multipart/related'.
msg addPart: htmlMsg.

html := MimeEntity newTextHTML.
html contents: '<html><body>

A title

Some text in here<br/>
<img src="cid:img1"/> </body></html>'.
htmlMsg addPart: html.

img := MimeEntity fileName: '<path to image file>'.
img contentId: 'img1'.
htmlMsg addPart: img.

client := Net.SMTPClient host: '<mailserver>'.
....client setup....
client send: msg.

squeakman

Re: how to embed image like a jpg or png into email

On 18/07/2012 8:38 AM, Holger Kleinsorgen wrote:

> You're almost there ;) You need to combine HTML and image with content type
> "multipart/related"
>

Thanks for you help, I am a bit closer to a solution.

I am sending the message to hotmail.com but it is not display the image
inline, instead it is an attachment.

Below is the code I am using and the contents of the MimeEntity that I
am sending.

Do you see anything wrong?

Thanks once again for you help,

Frank

---------------------------------

| msg client html img |
msg := MailMessage new.
msg contentType: 'multipart/related'.
msg from: <sender>.
msg to: <receiver>.
msg subject: 'Test - related'.

html := MimeEntity newTextHTML.
html contents: '<html><body><h2>A title</h2>Some text in
here<br/>cid:img1 </body></html>'.
msg addPart: html.

img := MimeEntity fileName: 'logo.png'.
img contentId: 'img1'.
img contentDisposition: 'inline'.
msg addPart: img.

---------------------------
Here is the MimeEntity that results from the above code:

From: <sender>
Subject: Test - related
To: <reveiver>
Content-type: multipart/related;boundary="=_vw0.51176011213649d_="

This message is in Mime format

--=_vw0.51176011213649d_=
Content-type: text/html;charset=iso-8859-1

<html><body><h2>A title</h2>Some text in here<br/>cid:img1 </body></html>

--=_vw0.51176011213649d_=
Content-disposition: inline;filename=logo.png
Content-type: image/png
Content-id: img1

------ from logo.png (5493 bytes) -----

--=_vw0.51176011213649d_=--

_______________________________________________
vwnc mailing list
[hidden email]
http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

Holger Kleinsorgen

Re: how to embed image like a jpg or png into email

squeakman wrote

Thanks for you help, I am a bit closer to a solution.

I am sending the message to hotmail.com but it is not display the image
inline, instead it is an attachment.
....
html contents: '<html><body>
A title
Some text in
here<br/>cid:img1 </body></html>'.

I don't know if it's just Nabbles web interface for this mailing list, but the HTML contents lacks a proper image tag.

I've tested the code with Outlook 2010, Thunderbird 14, Google Mail and Live/Hotmail. All can display the HTML with the inlined image. Hotmail asks if the sender should be trusted, but after that it works too.