/ php-ppcms/includes/classes/lib.email.class.php

<?php

/***************************************************************

*  Copyright notice

*  (c) 2009, jianyuzhu@gmail.com

*  All rights reserved

*  This script is part of the PPEMI project.

***************************************************************/



class LibEmail {

	var $html;

	var $text;

	var $output;

	var $html_text;

	var $html_images;

	var $image_types;

	var $build_params;

	var $attachments;

	var $headers;

	

	//constructor

	function LibEmail($headers = '') {

		if( $headers == '') $headers = array();

		

		$this->html_images = array();

		$this->headers = array();

		

		if( CONFIG_EMAIL_LINEFEED == 'CRLF') {

			$this->lf = "\r\n";

		} else {

			$this->lf = "\n";

		}

	

		/**

		 * If you want the auto load functionality

		 * to find other mime-image/file types, add the

		 * extension and content type here.

		 */

	

		$this->image_types = array('gif' => 'image/gif',

									'jpg' => 'image/jpeg',

									'jpeg' => 'image/jpeg',

									'jpe' => 'image/jpeg',

									'bmp' => 'image/bmp',

									'png' => 'image/png',

									'tif' => 'image/tiff',

									'tiff' => 'image/tiff',

									'swf' => 'application/x-shockwave-flash');

		

		$this->build_params['html_encoding'] = 'quoted-printable';

		$this->build_params['text_encoding'] = '7bit';

		

		//Make sure EMAIL_CHARSET is defined for big5 or gb2312.

		if( defined('CONFIG_EMAIL_CHARSET')) {

			$this->build_params['html_charset'] = constant('CONFIG_EMAIL_CHARSET');

			$this->build_params['text_charset'] = constant('CONFIG_EMAIL_CHARSET');

		} else{

			 $this->build_params['html_charset'] = constant('CONFIG_CHARSET');

			 $this->build_params['text_charset'] = constant('CONFIG_CHARSET');

		}

		$this->build_params['text_wrap'] = 998;

		

		/*

		 * Make sure the MIME version header is first.

		 */

		

		$this->headers[] = 'MIME-Version: 1.0';

		

		reset($headers);

		while(list(,$value) = each($headers)) {

			if( util_not_null($value) ) {

				$this->headers[] = $value;

			}

		}

	}



	/**

	 * This function will read a file in

	 * from a supplied filename and return

	 * it. This can then be given as the first

	 * argument of the the functions

	 * add_html_image() or add_attachment().

	 */

	

	function get_file($filename) {

		$return = '';

		

		if( $fp = fopen($filename, 'rb')) {

			while (!feof($fp)) {

				$return .= fread($fp, 1024);

			}

			fclose($fp);

			

			return $return;

		} else {

			return false;

		}

	}

	

	/**

	 * Function for extracting images from

	 * html source. This function will look

	 * through the html code supplied by add_html()

	 * and find any file that ends in one of the

	 * extensions defined in $obj->image_types.

	 * If the file exists it will read it in and

	 * embed it, (not an attachment).

	 *

	 * Function contributed by Dan Allen

	 */

	

	function find_html_images($images_dir) {

		// Build the list of image extensions

		while(list($key, ) = each($this->image_types)) {

			$extensions[] = $key;

		}

		

		preg_match_all('/"([^"]+\.(' . implode('|', $extensions).'))"/Ui', $this->html, $images);

		

		for ($i=0; $i<count($images[1]); $i++) {

			if( file_exists($images_dir . $images[1][$i]) ) {

				$html_images[] = $images[1][$i];

				$this->html = str_replace($images[1][$i], basename($images[1][$i]), $this->html);

			}

		}

		

		if( util_not_null($html_images)) {

			// If duplicate images are embedded, they may show up as attachments, so remove them.

			$html_images = array_unique($html_images);

			sort($html_images);

			

			for ($i=0; $i<count($html_images); $i++) {

				if( $image = $this->get_file($images_dir . $html_images[$i]) ) {

					$content_type = $this->image_types[substr($html_images[$i], strrpos($html_images[$i], '.') + 1)];

					$this->add_html_image($image, basename($html_images[$i]), $content_type);

				}

			}

		}

	}

		

	/**

	 * Adds plain text. Use this function

	 * when NOT sending html email

	 */

	

	function add_text($text = '') {

		$this->text = util_convert_linefeeds(array("\r\n", "\n", "\r"), $this->lf, $text);

	}

	

	/**

	 * Adds a html part to the mail.

	 * Also replaces image names with

	 * content-id's.

	 */

	

	function add_html($html, $text = NULL, $images_dir = NULL) {

		$this->html = util_convert_linefeeds(array("\r\n", "\n", "\r"), '<br>', $html);

		$this->html_text = util_convert_linefeeds(array("\r\n", "\n", "\r"), $this->lf, $text);

		

		if( isset($images_dir)) $this->find_html_images($images_dir);

	}

	

	/**

	 * Adds an image to the list of embedded

	 * images.

	 */

	

	function add_html_image($file, $name = '', $c_type='application/octet-stream') {

		$this->html_images[] = array('body' => $file,

									 'name' => $name,

									 'c_type' => $c_type,

									 'cid' => md5(uniqid(time())));

	}



	/**

	 * Adds a file to the list of attachments.

	 */

	

	function add_attachment($file, $name = '', $c_type='application/octet-stream', $encoding = 'base64') {

		$this->attachments[] = array('body' => $file,

									 'name' => $name,

									 'c_type' => $c_type,

									 'encoding' => $encoding);

	}

	

	/**

	 * Adds a text subpart to a mime_part object

	 */

	

	/* HPDL PHP3 */

	//function &add_text_part(&$obj, $text) {

	function add_text_part(&$obj, $text) {

		$params['content_type'] = 'text/plain';

		$params['encoding'] = $this->build_params['text_encoding'];

		$params['charset'] = $this->build_params['text_charset'];

		

		if( is_object($obj)) {

			return $obj->addSubpart($text, $params);

		} else {

			return new LibEmailMime($text, $params);

		}

	}

		

	/**

	 * Adds a html subpart to a mime_part object

	 */

	

	/* HPDL PHP3 */

	//function &add_html_part(&$obj) {

	function add_html_part(&$obj) {

		$params['content_type'] = 'text/html';

		$params['encoding'] = $this->build_params['html_encoding'];

		$params['charset'] = $this->build_params['html_charset'];

		

		if( is_object($obj)) {

			return $obj->addSubpart($this->html, $params);

		} else {

			return new LibEmailMime($this->html, $params);

		}

	}

	

	/**

	 * Starts a message with a mixed part

	 */

	

	/* HPDL PHP3 */

	//function &add_mixed_part() {

	function add_mixed_part() {

		$params['content_type'] = 'multipart/mixed';

		

		return new LibEmailMime('', $params);

	}

	

	/**

	 * Adds an alternative part to a mime_part object

	 */

	

	/* HPDL PHP3 */

	//function &add_alternative_part(&$obj) {

	function add_alternative_part(&$obj) {

		$params['content_type'] = 'multipart/alternative';

		

		if( is_object($obj)) {

			return $obj->addSubpart('', $params);

		} else {

			return new LibEmailMime('', $params);

		}

	}

		

	/**

	 * Adds a html subpart to a mime_part object

	 */

	

	/* HPDL PHP3 */

	//function &add_related_part(&$obj) {

	function add_related_part(&$obj) {

		$params['content_type'] = 'multipart/related';

		

		if( is_object($obj)) {

			return $obj->addSubpart('', $params);

		} else {

			return new LibEmailMime('', $params);

		}

	}



	/**

	 * Adds an html image subpart to a mime_part object

	 */

	

	/* HPDL PHP3 */

	//function &add_html_image_part(&$obj, $value) {

	function add_html_image_part(&$obj, $value) {

		$params['content_type'] = $value['c_type'];

		$params['encoding'] = 'base64';

		$params['disposition'] = 'inline';

		$params['dfilename'] = $value['name'];

		$params['cid'] = $value['cid'];

		

		$obj->addSubpart($value['body'], $params);

	}



	/**

	 * Adds an attachment subpart to a mime_part object

	 */

	

	/* HPDL PHP3 */

	//function &add_attachment_part(&$obj, $value) {

	function add_attachment_part(&$obj, $value) {

		$params['content_type'] = $value['c_type'];

		$params['encoding'] = $value['encoding'];

		$params['disposition'] = 'attachment';

		$params['dfilename'] = $value['name'];

		

		$obj->addSubpart($value['body'], $params);

	}

		

	/**

	 * Builds the multipart message from the

	 * list ($this->_parts). $params is an

	 * array of parameters that shape the building

	 * of the message. Currently supported are:

	 *

	 * $params['html_encoding'] - The type of encoding to use on html. Valid options are

	 *                            "7bit", "quoted-printable" or "base64" (all without quotes).

	 *                            7bit is EXPRESSLY NOT RECOMMENDED. Default is quoted-printable

	 * $params['text_encoding'] - The type of encoding to use on plain text Valid options are

	 *                            "7bit", "quoted-printable" or "base64" (all without quotes).

	 *                            Default is 7bit

	 * $params['text_wrap']     - The character count at which to wrap 7bit encoded data.

	 *                            Default this is 998.

	 * $params['html_charset']  - The character set to use for a html section.

	 *                            Default is iso-8859-1

	 * $params['text_charset']  - The character set to use for a text section.

	 *                          - Default is iso-8859-1

	 */

	

	/* HPDL PHP3 */

	//    function build_message($params = array()) {

	function build_message($params = '') {

		if( $params == '' ) $params = array();

		

		if( count($params) > 0 ) {

			reset($params);

			while(list($key, $value) = each($params)) {

				$this->build_params[$key] = $value;

			}

		}

		

		if( util_not_null($this->html_images) ) {

			reset($this->html_images);

			while(list(,$value) = each($this->html_images)) {

				$this->html = str_replace($value['name'], 'cid:' . $value['cid'], $this->html);

			}

		}

		

		$null = NULL;

		$attachments = ((util_not_null($this->attachments)) ? true : false);

		$html_images = ((util_not_null($this->html_images)) ? true : false);

		$html = ((util_not_null($this->html)) ? true : false);

		$text = ((util_not_null($this->text)) ? true : false);

		

		switch(true) {

			case (($text == true) && ($attachments == false)):

				/* HPDL PHP3 */

				//          $message =& $this->add_text_part($null, $this->text);

				$message = $this->add_text_part($null, $this->text);

				break;

			case (($text == false) && ($attachments == true) && ($html == false)):

				/* HPDL PHP3 */

				//          $message =& $this->add_mixed_part();

				$message = $this->add_mixed_part();

				

				for ($i=0; $i<count($this->attachments); $i++) {

					$this->add_attachment_part($message, $this->attachments[$i]);

				}

				break;

			case (($text == true) && ($attachments == true)):

				/* HPDL PHP3 */

				//          $message =& $this->add_mixed_part();

				$message = $this->add_mixed_part();

				$this->add_text_part($message, $this->text);

				

				for ($i=0; $i<count($this->attachments); $i++) {

					$this->add_attachment_part($message, $this->attachments[$i]);

				}

				break;

			case (($html == true) && ($attachments == false) && ($html_images == false)):

				if( util_not_null($this->html_text)) {

					/* HPDL PHP3 */

					//            $message =& $this->add_alternative_part($null);

					$message = $this->add_alternative_part($null);

					$this->add_text_part($message, $this->html_text);

					$this->add_html_part($message);

				} else {

					/* HPDL PHP3 */

					//            $message =& $this->add_html_part($null);

					$message = $this->add_html_part($null);

				}

				break;

			case (($html == true) && ($attachments == false) && ($html_images == true)):

				if( util_not_null($this->html_text)) {

					/* HPDL PHP3 */

					//            $message =& $this->add_alternative_part($null);

					$message = $this->add_alternative_part($null);

					$this->add_text_part($message, $this->html_text);

					/* HPDL PHP3 */

					//            $related =& $this->add_related_part($message);

					$related = $this->add_related_part($message);

				} else {

					/* HPDL PHP3 */

					//            $message =& $this->add_related_part($null);

					//            $related =& $message;

					$message = $this->add_related_part($null);

					$related = $message;

				}

				$this->add_html_part($related);

				

				for ($i=0; $i<count($this->html_images); $i++) {

					$this->add_html_image_part($related, $this->html_images[$i]);

				}

				break;

			case (($html == true) && ($attachments == true) && ($html_images == false)):

				/* HPDL PHP3 */

				//          $message =& $this->add_mixed_part();

				$message = $this->add_mixed_part();

				if( util_not_null($this->html_text)) {

					/* HPDL PHP3 */

					//            $alt =& $this->add_alternative_part($message);

					$alt = $this->add_alternative_part($message);

					$this->add_text_part($alt, $this->html_text);

					$this->add_html_part($alt);

				} else {

					$this->add_html_part($message);

				}

				

				for ($i=0; $i<count($this->attachments); $i++) {

					$this->add_attachment_part($message, $this->attachments[$i]);

				}

				break;

			case (($html == true) && ($attachments == true) && ($html_images == true)):

				/* HPDL PHP3 */

				//          $message =& $this->add_mixed_part();

				$message = $this->add_mixed_part();

				

				if( util_not_null($this->html_text)) {

					/* HPDL PHP3 */

					//          $alt =& $this->add_alternative_part($message);

					$alt = $this->add_alternative_part($message);

					$this->add_text_part($alt, $this->html_text);

					/* HPDL PHP3 */

					//            $rel =& $this->add_related_part($alt);

					$rel = $this->add_related_part($alt);

				} else {

					/* HPDL PHP3 */

					//            $rel =& $this->add_related_part($message);

					$rel = $this->add_related_part($message);

				}

				$this->add_html_part($rel);

				

				for ($i=0; $i<count($this->html_images); $i++) {

					$this->add_html_image_part($rel, $this->html_images[$i]);

				}

				

				for ($i=0; $i<count($this->attachments); $i++) {

					$this->add_attachment_part($message, $this->attachments[$i]);

				}

				break;

		}

		

		if( (isset($message)) && (is_object($message)) ) {

			$output = $message->encode();

			$this->output = $output['body'];

			

			reset($output['headers']);

			while(list($key, $value) = each($output['headers'])) {

				$headers[] = $key . ': ' . $value;

			}

			

			$this->headers = array_merge($this->headers, $headers);

			

			return true;

		} else {

			return false;

		}

	}



	/**

	 * Sends the mail.

	 */

	

	function send($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = '') {

		$to = (($to_name != '') ? '"' . $to_name . '" <' . $to_addr . '>' : $to_addr);

		$from = (($from_name != '') ? '"' . $from_name . '" <' . $from_addr . '>' : $from_addr);

		

		if( is_string($headers)) {

			$headers = explode($this->lf, trim($headers));

		}

		

		for ($i=0; $i<count($headers); $i++) {

			if( is_array($headers[$i]) ) {

				for ($j=0; $j<count($headers[$i]); $j++) {

					if( $headers[$i][$j] != '') {

						$xtra_headers[] = $headers[$i][$j];

					}

				}

			}

			

			if( $headers[$i] != '') {

				$xtra_headers[] = $headers[$i];

			}

		}

		

		if( !isset($xtra_headers)) {

			$xtra_headers = array();

		}

		

		if( CONFIG_EMAIL_TRANSPORT == 'smtp' ) {

			return mail($to_addr, $subject, $this->output, 'From: ' . $from . $this->lf . 'To: ' . $to . $this->lf . implode($this->lf, $this->headers) . $this->lf . implode($this->lf, $xtra_headers));

		} else {

			return mail($to, $subject, $this->output, 'From: '.$from.$this->lf.implode($this->lf, $this->headers).$this->lf.implode($this->lf, $xtra_headers));

		}

	}

	

	/**

	 * Use this method to return the email

	 * in message/rfc822 format. Useful for

	 * adding an email to another email as

	 * an attachment. there's a commented

	 * out example in example.php.

	 *

	 * string get_rfc822(string To name,

	 *       string To email,

	 *       string From name,

	 *       string From email,

	 *       [string Subject,

	 *        string Extra headers])

	 */

	

	function get_rfc822($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = '') {

		// Make up the date header as according to RFC822

		$date = 'Date: ' . date('D, d M y H:i:s');

		$to = (($to_name != '') ? 'To: "' . $to_name . '" <' . $to_addr . '>' : 'To: ' . $to_addr);

		$from = (($from_name != '') ? 'From: "' . $from_name . '" <' . $from_addr . '>' : 'From: ' . $from_addr);

		

		if( is_string($subject)) {

			$subject = 'Subject: ' . $subject;

		}

		

		if( is_string($headers)) {

			$headers = explode($this->lf, trim($headers));

		}

		

		for ($i=0; $i<count($headers); $i++) {

			if( is_array($headers[$i]) ) {

				for ($j=0; $j<count($headers[$i]); $j++) {

					if( $headers[$i][$j] != '') {

						$xtra_headers[] = $headers[$i][$j];

					}

				}



			}

			

			if( $headers[$i] != '') {

				$xtra_headers[] = $headers[$i];

			}

		}

		

		if( !isset($xtra_headers)) {

			$xtra_headers = array();

		}

		

		$headers = array_merge($this->headers, $xtra_headers);

		

		return $date . $this->lf . $from . $this->lf . $to . $this->lf . $subject . $this->lf . implode($this->lf, $headers) . $this->lf . $this->lf . $this->output;

	}

}

//

?>