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phpcodeigniteremailcodeigniter-3email-attachments

Codeigniter send mail: attachment damaged

I create with PHPPowerpoint a .pptx file and save it to the Server. The user has now 2 options within the Website:

  1. Download file directly: This works fine. File is opened without any error.
  2. Send mail himself with file attached: Mail is send correctly, however the attached .pptx says it is damaged when I try to open it.

This is my php code to send the mail:

$config['smtp_host'] = 'xxx';
$config['protocol'] = 'smtp';
$this->email->initialize($config);

$this->email->from('xxx', 'xxx');
$this->email->to('xxx');

$this->email->subject($_POST['id']." ".$_POST['title']);
$this->email->message('See attachment.');
$this->email->attach($filepath);
$this->email->send();

I have opened both files with 7zip and mentioned, that the file Content_types.xml could not be opened for the file sent by mail.

What could be wrong and how to fix it?

This is the correct Header that is missing when sending the pptx vai mail:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">
  <Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>
  <Default Extension="xml" ContentType="application/xml"/>
  <Override PartName="/ppt/theme/theme1.xml" ContentType="application/vnd.openxmlformats-officedocument.theme+xml"/>
  <Override PartName="/ppt/presentation.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.presentation.main+xml"/>
  <Override PartName="/docProps/app.xml" ContentType="application/vnd.openxmlformats-officedocument.extended-properties+xml"/>
  <Override PartName="/docProps/core.xml" ContentType="application/vnd.openxmlformats-package.core-properties+xml"/>
  <Override PartName="/ppt/slideMasters/slideMaster1.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideMaster+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout1.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout2.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout3.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout4.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout5.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout6.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout7.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout8.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout9.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout10.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slideLayouts/slideLayout11.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/>
  <Override PartName="/ppt/slides/slide1.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slide+xml"/>
  <Default Extension="gif" ContentType="image/gif"/>
  <Default Extension="jpg" ContentType="image/jpeg"/>
  <Default Extension="jpeg" ContentType="image/jpeg"/>
  <Default Extension="png" ContentType="image/png"/>
  <Default Extension="xlsx" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"/>
</Types>
Solution

  • Found this one as working solution: https://github.com/bcit-ci/CodeIgniter/issues/4746

    "There is an issue which occurs in /system/libraries/Email.php on line 1471 when you add attachments to an email and none of them have a Content-ID ."

     .(empty($this->_attachments[$i]['cid']) ? '' : 'Content-ID: <'.$this->_attachments[$i]['cid'].'>'.$this->newline).$this->newline

    It should be fixed with CI 3.1.0 but it does not work for me at all. Modifying line 1471 helps.