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-rw-r--r--system/libraries/Email.php194
1 files changed, 117 insertions, 77 deletions
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 6ff3efad9..f8772c656 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -150,13 +150,6 @@ class CI_Email {
public $charset = 'UTF-8';
/**
- * Multipart message
- *
- * @var string 'mixed' (in the body) or 'related' (separate)
- */
- public $multipart = 'mixed'; // "mixed" (in the body) or "related" (separate)
-
- /**
* Alternative message (for HTML messages only)
*
* @var string
@@ -261,20 +254,6 @@ class CI_Email {
protected $_finalbody = '';
/**
- * multipart/alternative boundary
- *
- * @var string
- */
- protected $_alt_boundary = '';
-
- /**
- * Attachment boundary
- *
- * @var string
- */
- protected $_atc_boundary = '';
-
- /**
* Final headers to send
*
* @var string
@@ -743,7 +722,8 @@ class CI_Email {
'name' => array($file, $newname),
'disposition' => empty($disposition) ? 'attachment' : $disposition, // Can also be 'inline' Not sure if it matters
'type' => $mime,
- 'content' => chunk_split(base64_encode($file_content))
+ 'content' => chunk_split(base64_encode($file_content)),
+ 'multipart' => 'mixed'
);
return $this;
@@ -761,15 +741,11 @@ class CI_Email {
*/
public function attachment_cid($filename)
{
- if ($this->multipart !== 'related')
- {
- $this->multipart = 'related'; // Thunderbird need this for inline images
- }
-
for ($i = 0, $c = count($this->_attachments); $i < $c; $i++)
{
if ($this->_attachments[$i]['name'][0] === $filename)
{
+ $this->_attachments[$i]['multipart'] = 'related';
$this->_attachments[$i]['cid'] = uniqid(basename($this->_attachments[$i]['name'][0]).'@');
return $this->_attachments[$i]['cid'];
}
@@ -914,19 +890,6 @@ class CI_Email {
// --------------------------------------------------------------------
/**
- * Set Message Boundary
- *
- * @return void
- */
- protected function _set_boundaries()
- {
- $this->_alt_boundary = 'B_ALT_'.uniqid(''); // multipart/alternative
- $this->_atc_boundary = 'B_ATC_'.uniqid(''); // attachment boundary
- }
-
- // --------------------------------------------------------------------
-
- /**
* Get the Message ID
*
* @return string
@@ -993,9 +956,9 @@ class CI_Email {
{
if ($this->mailtype === 'html')
{
- return (count($this->_attachments) === 0) ? 'html' : 'html-attach';
+ return empty($this->_attachments) ? 'html' : 'html-attach';
}
- elseif ($this->mailtype === 'text' && count($this->_attachments) > 0)
+ elseif ($this->mailtype === 'text' && ! empty($this->_attachments))
{
return 'plain-attach';
}
@@ -1301,7 +1264,6 @@ class CI_Email {
$this->_body = $this->word_wrap($this->_body);
}
- $this->_set_boundaries();
$this->_write_headers();
$hdr = ($this->_get_protocol() === 'mail') ? $this->newline : '';
@@ -1309,7 +1271,7 @@ class CI_Email {
switch ($this->_get_content_type())
{
- case 'plain' :
+ case 'plain':
$hdr .= 'Content-Type: text/plain; charset='.$this->charset.$this->newline
.'Content-Transfer-Encoding: '.$this->_get_encoding();
@@ -1326,7 +1288,7 @@ class CI_Email {
return;
- case 'html' :
+ case 'html':
if ($this->send_multipart === FALSE)
{
@@ -1335,14 +1297,16 @@ class CI_Email {
}
else
{
- $hdr .= 'Content-Type: multipart/alternative; boundary="'.$this->_alt_boundary.'"';
+ $boundary = uniqid('B_ALT_');
+ $hdr .= 'Content-Type: multipart/alternative; boundary="'.$boundary.'"';
$body .= $this->_get_mime_message().$this->newline.$this->newline
- .'--'.$this->_alt_boundary.$this->newline
+ .'--'.$boundary.$this->newline
.'Content-Type: text/plain; charset='.$this->charset.$this->newline
.'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline.$this->newline
- .$this->_get_alt_message().$this->newline.$this->newline.'--'.$this->_alt_boundary.$this->newline
+ .$this->_get_alt_message().$this->newline.$this->newline
+ .'--'.$boundary.$this->newline
.'Content-Type: text/html; charset='.$this->charset.$this->newline
.'Content-Transfer-Encoding: quoted-printable'.$this->newline.$this->newline;
@@ -1361,14 +1325,15 @@ class CI_Email {
if ($this->send_multipart !== FALSE)
{
- $this->_finalbody .= '--'.$this->_alt_boundary.'--';
+ $this->_finalbody .= '--'.$boundary.'--';
}
return;
- case 'plain-attach' :
+ case 'plain-attach':
- $hdr .= 'Content-Type: multipart/'.$this->multipart.'; boundary="'.$this->_atc_boundary.'"';
+ $boundary = uniqid('B_ATC_');
+ $hdr .= 'Content-Type: multipart/mixed; boundary="'.$boundary.'"';
if ($this->_get_protocol() === 'mail')
{
@@ -1377,59 +1342,83 @@ class CI_Email {
$body .= $this->_get_mime_message().$this->newline
.$this->newline
- .'--'.$this->_atc_boundary.$this->newline
+ .'--'.$boundary.$this->newline
.'Content-Type: text/plain; charset='.$this->charset.$this->newline
.'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline
.$this->newline
.$this->_body.$this->newline.$this->newline;
- break;
- case 'html-attach' :
+ $this->_append_attachments($body, $boundary);
- $hdr .= 'Content-Type: multipart/'.$this->multipart.'; boundary="'.$this->_atc_boundary.'"';
+ break;
+ case 'html-attach':
+
+ $alt_boundary = uniqid('B_ALT_');
+ $last_boundary = NULL;
+
+ if ($this->_attachments_have_multipart('mixed'))
+ {
+ $atc_boundary = uniqid('B_ATC_');
+ $hdr .= 'Content-Type: multipart/mixed; boundary="'.$atc_boundary.'"';
+ $last_boundary = $atc_boundary;
+ }
+
+ if ($this->_attachments_have_multipart('related'))
+ {
+ $rel_boundary = uniqid('B_REL_');
+ $rel_boundary_header = 'Content-Type: multipart/related; boundary="'.$rel_boundary.'"';
+
+ if (isset($last_boundary))
+ {
+ $body .= '--'.$last_boundary.$this->newline.$rel_boundary_header;
+ }
+ else
+ {
+ $hdr .= $rel_boundary_header;
+ }
+
+ $last_boundary = $rel_boundary;
+ }
if ($this->_get_protocol() === 'mail')
{
$this->_header_str .= $hdr;
}
+ strlen($body) && $body .= $this->newline.$this->newline;
$body .= $this->_get_mime_message().$this->newline.$this->newline
- .'--'.$this->_atc_boundary.$this->newline
+ .'--'.$last_boundary.$this->newline
- .'Content-Type: multipart/alternative; boundary="'.$this->_alt_boundary.'"'.$this->newline.$this->newline
- .'--'.$this->_alt_boundary.$this->newline
+ .'Content-Type: multipart/alternative; boundary="'.$alt_boundary.'"'.$this->newline.$this->newline
+ .'--'.$alt_boundary.$this->newline
.'Content-Type: text/plain; charset='.$this->charset.$this->newline
.'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline.$this->newline
- .$this->_get_alt_message().$this->newline.$this->newline.'--'.$this->_alt_boundary.$this->newline
+ .$this->_get_alt_message().$this->newline.$this->newline
+ .'--'.$alt_boundary.$this->newline
.'Content-Type: text/html; charset='.$this->charset.$this->newline
.'Content-Transfer-Encoding: quoted-printable'.$this->newline.$this->newline
.$this->_prep_quoted_printable($this->_body).$this->newline.$this->newline
- .'--'.$this->_alt_boundary.'--'.$this->newline.$this->newline;
+ .'--'.$alt_boundary.'--'.$this->newline.$this->newline;
- break;
- }
-
- $attachment = array();
- for ($i = 0, $c = count($this->_attachments), $z = 0; $i < $c; $i++)
- {
- $filename = $this->_attachments[$i]['name'][0];
- $basename = ($this->_attachments[$i]['name'][1] === NULL)
- ? basename($filename) : $this->_attachments[$i]['name'][1];
+ if ( ! empty($rel_boundary))
+ {
+ $body .= $this->newline.$this->newline;
+ $this->_append_attachments($body, $rel_boundary, 'related');
+ }
- $attachment[$z++] = '--'.$this->_atc_boundary.$this->newline
- .'Content-type: '.$this->_attachments[$i]['type'].'; '
- .'name="'.$basename.'"'.$this->newline
- .'Content-Disposition: '.$this->_attachments[$i]['disposition'].';'.$this->newline
- .'Content-Transfer-Encoding: base64'.$this->newline
- .(empty($this->_attachments[$i]['cid']) ? '' : 'Content-ID: <'.$this->_attachments[$i]['cid'].'>'.$this->newline);
+ // multipart/mixed attachments
+ if ( ! empty($atc_boundary))
+ {
+ $body .= $this->newline.$this->newline;
+ $this->_append_attachments($body, $atc_boundary, 'mixed');
+ }
- $attachment[$z++] = $this->_attachments[$i]['content'];
+ break;
}
- $body .= implode($this->newline, $attachment).$this->newline.'--'.$this->_atc_boundary.'--';
$this->_finalbody = ($this->_get_protocol() === 'mail')
? $body
: $hdr.$this->newline.$this->newline.$body;
@@ -1439,6 +1428,57 @@ class CI_Email {
// --------------------------------------------------------------------
+ protected function _attachments_have_multipart($type)
+ {
+ foreach ($this->_attachments as &$attachment)
+ {
+ if ($attachment['multipart'] === $type)
+ {
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Prepares attachment string
+ *
+ * @param string $body Message body to append to
+ * @param string $boundary Multipart boundary
+ * @param string $multipart When provided, only attachments of this type will be processed
+ * @return string
+ */
+ protected function _append_attachments(&$body, $boundary, $multipart = null)
+ {
+ for ($i = 0, $c = count($this->_attachments); $i < $c; $i++)
+ {
+ if (isset($multipart) && $this->_attachments[$i]['multipart'] !== $multipart)
+ {
+ continue;
+ }
+
+ $name = isset($this->_attachments[$i]['name'][1])
+ ? $this->_attachments[$i]['name'][1]
+ : basename($this->_attachments[$i]['name'][0]);
+
+ $body .= '--'.$boundary.$this->newline
+ .'Content-Type: '.$this->_attachments[$i]['type'].'; name="'.$name.'"'.$this->newline
+ .'Content-Disposition: '.$this->_attachments[$i]['disposition'].';'.$this->newline
+ .'Content-Transfer-Encoding: base64'.$this->newline
+ .(empty($this->_attachments[$i]['cid']) ? '' : 'Content-ID: <'.$this->_attachments[$i]['cid'].'>'.$this->newline.$this->newline)
+ .$this->_attachments[$i]['content'].$this->newline;
+ }
+
+ // $name won't be set if no attachments were appended,
+ // and therefore a boundary wouldn't be necessary
+ empty($name) OR $body .= '--'.$boundary.'--';
+ }
+
+ // --------------------------------------------------------------------
+
/**
* Prep Quoted Printable
*
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-02 01:17:52 +0100