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<?php |
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/* |
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This is a wrapper around the IMAP protocol. It implements some functions which are not |
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native to IMAP but greately simply working with messages stored in IMAP. |
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*/ |
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class imap_mail extends imap |
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{ |
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/* |
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returns an array with message parts indexed and objects attached |
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*/ |
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function get_map($mid) |
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{ |
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$structure = $this -> get_structure($mid); |
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|
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if(!$structure->parts) { |
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return FALSE; |
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} |
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|
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return $this->create_part_array($structure); |
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} |
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|
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function create_part_array($structure, $prefix="") |
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{ |
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$part_array = array(); |
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|
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if (sizeof($structure->parts) > 0) { |
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foreach ($structure->parts as $count => $part) { |
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$this->add_part_to_array($part, $prefix.($count+1), $part_array); |
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} |
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} |
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return $part_array; |
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} |
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|
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function add_part_to_array($obj, $partno, &$part_array) |
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{ |
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if(!is_array($part_array) || empty($part_array)) $part_array=array(); |
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|
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if ($obj->type == TYPEMESSAGE) { |
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$this->add_part_to_array($obj->parts[0], $partno.".", $part_array); |
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} |
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else { |
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if (sizeof($obj->parts) > 0) { |
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foreach ($obj->parts as $count => $p) { |
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$this->add_part_to_array($p, $partno.".".($count+1), $part_array); |
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} |
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} |
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} |
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$part_array[] = array('part_number' => $partno, 'part_object' => $obj); |
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} |
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|
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/* |
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returns a string that contains the plain text part of the message |
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*/ |
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function get_plaintext($mid, $options="") |
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{ |
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$map = $this->get_map($mid); |
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|
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//print_r($map); |
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if(!$map) { |
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// this is a simple plain text message |
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$content = $this -> get_body($mid, 1, $options); |
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$encoding = $this->get_plaintext_encoding($mid); |
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//echo "encoding is: $encoding<br>\n"; |
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if($encoding=="base64") { |
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$content = base64_decode($content); |
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} else { |
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$content = quoted_printable_decode($content); |
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} |
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|
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} else { |
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// extract the PLAIN part out of all parts |
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foreach($map as $index=>$part_info) { |
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if($part_info['part_object']->subtype == "PLAIN") { |
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$content = $this->get_part($mid, $part_info['part_number']); |
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break; |
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} |
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} |
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} |
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if(!empty($content)) { |
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return $content; |
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} else { |
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return FALSE; |
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} |
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} |
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|
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/* |
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returns the charset for the plaintext part of the message |
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*/ |
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function get_plaintext_charset($mid, $options="") |
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{ |
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$map = $this->get_map($mid); |
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if(!$map) { |
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//echo "no map<br>\n"; |
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$header = $this->get_header($mid); |
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$body = $this->get_body($mid,0); |
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// see if there's a content type string |
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if(preg_match("/Content-Type/", $body)) { |
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//echo "there's content type<br>"; |
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// charset may or may not be enclosed in quotes |
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preg_match("/charset=\"?(.*)\"?/", $body, $matches); |
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$charset = $matches[1]; |
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return $charset; |
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} |
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/* |
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echo "<pre>"; |
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print_r($body); |
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echo "</pre>"; |
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*/ |
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return FALSE; |
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|
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} else { |
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//echo "have map"; |
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// extract the PLAIN part out of all parts |
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foreach($map as $index=>$part_info) { |
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if($part_info['part_object']->subtype == "PLAIN" && is_array($part_info['part_object']->parameters)) { |
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foreach($part_info['part_object']->parameters as $parameter_id=>$parameter_info) { |
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if($parameter_info->attribute=="charset") { |
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$charset = $parameter_info -> value; |
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//echo "charset: $charset<br>"; |
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break; |
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} |
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} |
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} |
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} |
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} |
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if(!empty($charset)) { |
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return $charset; |
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} else { |
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return FALSE; |
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} |
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} |
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|
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/* |
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returns the encoding with which a particular message was encoded |
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*/ |
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function get_plaintext_encoding($mid, $options="") |
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{ |
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$body = $this->get_body($mid,0); |
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// see if there's a content transfer string |
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if(preg_match("/Content-Transfer-Encoding:/", $body)) { |
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//echo "there's encoding<br>"; |
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preg_match("/Content-Transfer-Encoding:(.*)/", $body, $matches); |
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$encoding = trim($matches[1]); |
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return $encoding; |
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} |
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return FALSE; |
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} |
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|
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/* |
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returns an array with attachment details. |
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this makes it very easy to work with attachments |
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*/ |
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function get_attachment_overview($mid) |
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{ |
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$map = $this->get_map($mid); |
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// this message contains no attachemnts |
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if(!$map) { |
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return FALSE; |
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} |
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//die('we are here'); |
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foreach($map as $index=>$part_info) { |
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if($part_info['part_object']->ifdisposition == 1) { |
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$attachments[] = array( |
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'part_number' => $part_info['part_number'], |
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'type' => $part_info['part_object']->subtype, |
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'size' => $part_info['part_object']->bytes, |
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'file' => $part_info['part_object']->dparameters[0]->value |
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); |
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} |
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} |
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return $attachments; |
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} |
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function get_attachment_files($mid) { |
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// first get the overview |
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$att_overview = $this -> get_attachment_overview($mid); |
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// now return only those that have actual file names |
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if(empty($att_overview)) return FALSE; |
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if(sizeof($att_overview)<=0) return FALSE; |
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foreach($att_overview as $att_id => $att_info) { |
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if(!empty($att_info['file'])) { |
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$rs[]=$att_info; |
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} |
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} |
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return $rs; |
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} |
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|
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/* |
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this returns the part while decoding it |
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*/ |
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function get_part($mid, $part) |
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{ |
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|
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//echo "getting part $part of $mid<br>\n"; |
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$map = $this -> get_map($mid); |
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//print_r($map); |
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if(!$map) { |
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//echo "map is empty"; |
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return FALSE; |
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} |
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foreach($map as $index=>$part_info) { |
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if($part_info['part_number']==$part) { |
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if($part_info['part_object']->type ==0 || $part_info['part_object']->type =="") { |
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if($part_info['part_object']->encoding==3) { |
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$content = base64_decode($this->get_body($mid,$part)); |
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} elseif ($part_info['part_object']->encoding==4) { |
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$content = quoted_printable_decode($this->get_body($mid,$part)); |
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} else { |
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$content = $this->get_body($mid,$part); |
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} |
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|
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// handle plain text data |
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//$content = $this -> get_body($mid, $part); |
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} else { |
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|
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|
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// handle complex encoded data |
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//echo "handling complex encoded data<br>"; |
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|
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// handle base64 encoded data |
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if($part_info['part_object']->encoding==3) { |
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$content = base64_decode($this->get_body($mid,$part)); |
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} |
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|
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// handle quoted data |
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if($part_info['part_object']->encoding==4) { |
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$content = quoted_printable_decode($this->get_body($mid,$part)); |
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} |
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|
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} |
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return $content; |
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|
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} |
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} |
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return FALSE; |
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} |
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|
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/* |
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switches the active folder by recreating the connection |
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*/ |
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function active_folder($folder) |
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{ |
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if(empty($folder)) return FALSE; |
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if($this->folder == $folder) return; |
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|
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$this-> close(); |
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$this-> connect($this->username, $this->password, $this->host, $this->port, $folder, $this->options); |
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|
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} |
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|
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/* |
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this returns an object of the part of a message |
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*/ |
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function get_part_object($mid, $part) |
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{ |
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if(!$this->mbox) return FALSE; |
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$map = $this -> get_map($mid); |
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foreach($map as $map_id=>$part_info) { |
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if($part_info['part_number']==$part) { |
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return $part_info['part_object']; |
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} |
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} |
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|
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return FALSE; |
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} |
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|
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function get_part_mime_type($mid, $part) { |
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$part = $this -> get_part_object($mid, $part); |
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|
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|
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|
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switch(strtoupper($part -> subtype)) { |
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# Applications |
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case 'PDF': |
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case 'PS': |
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case 'POST-SCRIPT': |
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$mime = 'application/pdf'; |
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$img = "$path/page_white_acrobat.png"; |
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break; |
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case 'MSWORD': |
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$mime = 'application/msword'; |
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$img = "$path/page_word.png"; |
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break; |
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case 'PNG': |
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case 'GIF': |
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case 'BMP': |
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case 'JPG': |
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case 'JPEG': |
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$mime = "image/$type"; |
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break; |
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case 'MP3': |
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case 'WMA': |
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case 'X-MS-WMA': |
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case 'AAC': |
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$mime = "audio/$type"; |
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$img = "$path/sound.png"; |
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break; |
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case 'MPEG': |
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case 'WMV': |
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case 'AVI': |
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$mime = "video/$type"; |
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$img = "$path/film.png"; |
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break; |
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default: |
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$mime = 'text/x-generic'; |
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$img = "$path/application.png"; |
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} |
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|
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return $mime; |
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} |
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|
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|
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function mime_decode($data, $encoding) |
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{ |
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switch($encoding) { |
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case ENC8BIT: |
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$data = imap_8bit($data); |
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$data = quoted_printable_decode($data); |
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break; |
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case ENCBASE64: |
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$data = base64_decode(stripslashes($data)); |
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break; |
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case ENCQUOTEDPRINTABLE: |
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$data = quoted_printable_decode($data); |
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break; |
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} |
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return $data; |
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} |
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|
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} |
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?> |