发送邮件类 来自CodeIgniter php

Title

class Email {

var $useragent = "CodeIgniter";

var $mailpath = "/usr/sbin/sendmail"; // Sendmail path

var $protocol = "smtp"; // mail/sendmail/smtp

var $smtp_host = ""; // SMTP Server.  Example: mail.earthlink.net

var $smtp_user = ""; // SMTP Username

var $smtp_pass = ""; // SMTP Password

var $smtp_port = ""; // SMTP Port

var $smtp_timeout = 5; // SMTP Timeout in seconds

var $wordwrap = TRUE; // TRUE/FALSE  Turns word-wrap on/off

var $wrapchars = "76"; // Number of characters to wrap at.

var $mailtype = "html"; // text/html  Defines email formatting

var $charset = "gb2312"; // Default char set: iso-8859-1 or us-ascii

var $multipart = "mixed"; // "mixed" (in the body) or "related" (separate)

var $alt_message = ''; // Alternative message for HTML emails

var $validate = FALSE; // TRUE/FALSE.  Enables email validation

var $priority = "3"; // Default priority (1 - 5)

var $newline = "\n"; // Default newline. "\r\n" or "\n" (Use "\r\n" to comply with RFC 822)

var $crlf = "\n"; // The RFC 2045 compliant CRLF for quoted-printable is "\r\n".  Apparently some servers,

// even on the receiving end think they need to muck with CRLFs, so using "\n", while

// distasteful, is the only thing that seems to work for all environments.

var $send_multipart = TRUE; // TRUE/FALSE - Yahoo does not like multipart alternative, so this is an override.  Set to FALSEfor Yahoo.

var $bcc_batch_mode = FALSE; // TRUE/FALSE  Turns on/off Bcc batch feature

var $bcc_batch_size = 200; // If bcc_batch_mode = TRUE, sets max number of Bccs in each batch

var $_safe_mode = FALSE;

var $_subject = "";

var $_body = "";

var $_finalbody = "";

var $_alt_boundary = "";

var $_atc_boundary = "";

var $_header_str = "";

var $_smtp_connect = "";

var $_encoding = "8bit";

var $_IP = FALSE;

var $_smtp_auth = FALSE;

var $_replyto_flag = FALSE;

var $_debug_msg = array();

var $_recipients = array();

var $_cc_array = array();

var $_bcc_array = array();

var $_headers = array();

var $_attach_name = array();

var $_attach_type = array();

var $_attach_disp = array();

var $_protocols = array('mail', 'sendmail', 'smtp');

var $_base_charsets = array('us-ascii', 'iso-2022-'); // 7-bit charsets (excluding language suffix)

var $_bit_depths = array('7bit', '8bit');

var $_priorities = array('1 (Highest)', '2 (High)', '3 (Normal)', '4 (Low)', '5 (Lowest)');

/**

* Constructor - Sets Email Preferences

*

* The constructor can be passed an array of config values

*/

public function __construct($config = array())

{

if (count($config) > 0)

{

$this->initialize($config);

}

else

{

$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;

$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;

}

//log_message('debug', "Email Class Initialized");

}

// --------------------------------------------------------------------

/**

* Initialize preferences

*

* @access public

* @param array

* @return void

*/

public function initialize($config = array())

{

foreach ($config as $key => $val)

{

if (isset($this->$key))

{

$method = 'set_'.$key;

if (method_exists($this, $method))

{

$this->$method($val);

}

else

{

$this->$key = $val;

}

}

}

$this->clear();

$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;

$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;

return $this;

}

// --------------------------------------------------------------------

/**

* Initialize the Email Data

*

* @access public

* @return void

*/

public function clear($clear_attachments = FALSE)

{

$this->_subject = "";

$this->_body = "";

$this->_finalbody = "";

$this->_header_str = "";

$this->_replyto_flag = FALSE;

$this->_recipients = array();

$this->_cc_array = array();

$this->_bcc_array = array();

$this->_headers = array();

$this->_debug_msg = array();

$this->_set_header('User-Agent', $this->useragent);

$this->_set_header('Date', $this->_set_date());

if ($clear_attachments !== FALSE)

{

$this->_attach_name = array();

$this->_attach_type = array();

$this->_attach_disp = array();

}

return $this;

}

// --------------------------------------------------------------------

/**

* Set FROM

*

* @access public

* @param string

* @param string

* @return void

*/

public function from($from, $name = '')

{

if (preg_match( '/\<(.*)\>/', $from, $match))

{

$from = $match['1'];

}

if ($this->validate)

{

$this->validate_email($this->_str_to_array($from));

}

// prepare the display name

if ($name != '')

{

// only use Q encoding if there are characters that would require it

if ( ! preg_match('/[\200-\377]/', $name))

{

// add slashes for non-printing characters, slashes, and double quotes, and surround it in double quotes

$name = '"'.addcslashes($name, "\0..\37\177'\"\\").'"';

}

else

{

$name = $this->_prep_q_encoding($name, TRUE);

}

}

$this->_set_header('From', $name.' <'.$from.'>');

$this->_set_header('Return-Path', '<'.$from.'>');

return $this;

}

// --------------------------------------------------------------------

/**

* Set Reply-to

*

* @access public

* @param string

* @param string

* @return void

*/

public function reply_to($replyto, $name = '')

{

if (preg_match( '/\<(.*)\>/', $replyto, $match))

{

$replyto = $match['1'];

}

if ($this->validate)

{

$this->validate_email($this->_str_to_array($replyto));

}

if ($name == '')

{

$name = $replyto;

}

if (strncmp($name, '"', 1) != 0)

{

$name = '"'.$name.'"';

}

$this->_set_header('Reply-To', $name.' <'.$replyto.'>');

$this->_replyto_flag = TRUE;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Recipients

*

* @access public

* @param string

* @return void

*/

public function to($to)

{

$to = $this->_str_to_array($to);

$to = $this->clean_email($to);

if ($this->validate)

{

$this->validate_email($to);

}

if ($this->_get_protocol() != 'mail')

{

$this->_set_header('To', implode(", ", $to));

}

switch ($this->_get_protocol())

{

case 'smtp' :

$this->_recipients = $to;

break;

case 'sendmail' :

case 'mail' :

$this->_recipients = implode(", ", $to);

break;

}

return $this;

}

// --------------------------------------------------------------------

/**

* Set CC

*

* @access public

* @param string

* @return void

*/

public function cc($cc)

{

$cc = $this->_str_to_array($cc);

$cc = $this->clean_email($cc);

if ($this->validate)

{

$this->validate_email($cc);

}

$this->_set_header('Cc', implode(", ", $cc));

if ($this->_get_protocol() == "smtp")

{

$this->_cc_array = $cc;

}

return $this;

}

// --------------------------------------------------------------------

/**

* Set BCC

*

* @access public

* @param string

* @param string

* @return void

*/

public function bcc($bcc, $limit = '')

{

if ($limit != '' && is_numeric($limit))

{

$this->bcc_batch_mode = TRUE;

$this->bcc_batch_size = $limit;

}

$bcc = $this->_str_to_array($bcc);

$bcc = $this->clean_email($bcc);

if ($this->validate)

{

$this->validate_email($bcc);

}

if (($this->_get_protocol() == "smtp") OR ($this->bcc_batch_mode && count($bcc) > $this->bcc_batch_size))

{

$this->_bcc_array = $bcc;

}

else

{

$this->_set_header('Bcc', implode(", ", $bcc));

}

return $this;

}

// --------------------------------------------------------------------

/**

* Set Email Subject

*

* @access public

* @param string

* @return void

*/

public function subject($subject)

{

$subject = $this->_prep_q_encoding($subject);

$this->_set_header('Subject', $subject);

return $this;

}

// --------------------------------------------------------------------

/**

* Set Body

*

* @access public

* @param string

* @return void

*/

public function message($body)

{

$this->_body = stripslashes(rtrim(str_replace("\r", "", $body)));

return $this;

}

// --------------------------------------------------------------------

/**

* Assign file attachments

*

* @access public

* @param string

* @return void

*/

public function attach($filename, $disposition = 'attachment')

{

$this->_attach_name[] = $filename;

$this->_attach_type[] = $this->_mime_types(next(explode('.', basename($filename))));

$this->_attach_disp[] = $disposition; // Can also be 'inline'  Not sure if it matters

return $this;

}

// --------------------------------------------------------------------

/**

* Add a Header Item

*

* @access private

* @param string

* @param string

* @return void

*/

private function _set_header($header, $value)

{

$this->_headers[$header] = $value;

}

// --------------------------------------------------------------------

/**

* Convert a String to an Array

*

* @access private

* @param string

* @return array

*/

private function _str_to_array($email)

{

if ( ! is_array($email))

{

if (strpos($email, ',') !== FALSE)

{

$email = preg_split('/[\s,]/', $email, -1, PREG_SPLIT_NO_EMPTY);

}

else

{

$email = trim($email);

settype($email, "array");

}

}

return $email;

}

// --------------------------------------------------------------------

/**

* Set Multipart Value

*

* @access public

* @param string

* @return void

*/

public function set_alt_message($str = '')

{

$this->alt_message = ($str == '') ? '' : $str;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Mailtype

*

* @access public

* @param string

* @return void

*/

public function set_mailtype($type = 'text')

{

$this->mailtype = ($type == 'html') ? 'html' : 'text';

return $this;

}

// --------------------------------------------------------------------

/**

* Set Wordwrap

*

* @access public

* @param string

* @return void

*/

public function set_wordwrap($wordwrap = TRUE)

{

$this->wordwrap = ($wordwrap === FALSE) ? FALSE : TRUE;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Protocol

*

* @access public

* @param string

* @return void

*/

public function set_protocol($protocol = 'mail')

{

$this->protocol = ( ! in_array($protocol, $this->_protocols, TRUE)) ? 'mail' : strtolower($protocol);

return $this;

}

// --------------------------------------------------------------------

/**

* Set Priority

*

* @access public

* @param integer

* @return void

*/

public function set_priority($n = 3)

{

if ( ! is_numeric($n))

{

$this->priority = 3;

return;

}

if ($n < 1 OR $n > 5)

{

$this->priority = 3;

return;

}

$this->priority = $n;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Newline Character

*

* @access public

* @param string

* @return void

*/

public function set_newline($newline = "\n")

{

if ($newline != "\n" AND $newline != "\r\n" AND $newline != "\r")

{

$this->newline = "\n";

return;

}

$this->newline = $newline;

return $this;

}

// --------------------------------------------------------------------

/**

* Set CRLF

*

* @access public

* @param string

* @return void

*/

public function set_crlf($crlf = "\n")

{

if ($crlf != "\n" AND $crlf != "\r\n" AND $crlf != "\r")

{

$this->crlf = "\n";

return;

}

$this->crlf = $crlf;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Message Boundary

*

* @access private

* @return void

*/

private function _set_boundaries()

{

$this->_alt_boundary = "B_ALT_".uniqid(''); // multipart/alternative

$this->_atc_boundary = "B_ATC_".uniqid(''); // attachment boundary

}

// --------------------------------------------------------------------

/**

* Get the Message ID

*

* @access private

* @return string

*/

private function _get_message_id()

{

$from = $this->_headers['Return-Path'];

$from = str_replace(">", "", $from);

$from = str_replace("<", "", $from);

return  "<".uniqid('').strstr($from, '@').">";

}

// --------------------------------------------------------------------

/**

* Get Mail Protocol

*

* @access private

* @param bool

* @return string

*/

private function _get_protocol($return = TRUE)

{

$this->protocol = strtolower($this->protocol);

$this->protocol = ( ! in_array($this->protocol, $this->_protocols, TRUE)) ? 'mail' : $this->protocol;

if ($return == TRUE)

{

return $this->protocol;

}

}

// --------------------------------------------------------------------

/**

* Get Mail Encoding

*

* @access private

* @param bool

* @return string

*/

private function _get_encoding($return = TRUE)

{

$this->_encoding = ( ! in_array($this->_encoding, $this->_bit_depths)) ? '8bit' : $this->_encoding;

foreach ($this->_base_charsets as $charset)

{

if (strncmp($charset, $this->charset, strlen($charset)) == 0)

{

$this->_encoding = '7bit';

}

}

if ($return == TRUE)

{

return $this->_encoding;

}

}

// --------------------------------------------------------------------

/**

* Get content type (text/html/attachment)

*

* @access private

* @return string

*/

private function _get_content_type()

{

if ($this->mailtype == 'html' &&  count($this->_attach_name) == 0)

{

return 'html';

}

elseif ($this->mailtype == 'html' &&  count($this->_attach_name)  > 0)

{

return 'html-attach';

}

elseif ($this->mailtype == 'text' &&  count($this->_attach_name)  > 0)

{

return 'plain-attach';

}

else

{

return 'plain';

}

}

// --------------------------------------------------------------------

/**

* Set RFC 822 Date

*

* @access private

* @return string

*/

private function _set_date()

{

$timezone = date("Z");

$operator = (strncmp($timezone, '-', 1) == 0) ? '-' : '+';

$timezone = abs($timezone);

$timezone = floor($timezone/3600) * 100 + ($timezone % 3600 ) / 60;

return sprintf("%s %s%04d", date("D, j M Y H:i:s"), $operator, $timezone);

}

// --------------------------------------------------------------------

/**

* Mime message

*

* @access private

* @return string

*/

private function _get_mime_message()

{

return "This is a multi-part message in MIME format.".$this->newline."Your email application may not support this format.";

}

// --------------------------------------------------------------------

/**

* Validate Email Address

*

* @access public

* @param string

* @return bool

*/

public function validate_email($email)

{

if ( ! is_array($email))

{

$this->_set_error_message('email_must_be_array');

return FALSE;

}

foreach ($email as $val)

{

if ( ! $this->valid_email($val))

{

$this->_set_error_message('email_invalid_address', $val);

return FALSE;

}

}

return TRUE;

}

// --------------------------------------------------------------------

/**

* Email Validation

*

* @access public

* @param string

* @return bool

*/

public function valid_email($address)

{

return ( ! preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $address)) ? FALSE : TRUE;

}

// --------------------------------------------------------------------

/**

* Clean Extended Email Address: Joe Smith <joe@smith.com>

*

* @access public

* @param string

* @return string

*/

public function clean_email($email)

{

if ( ! is_array($email))

{

if (preg_match('/\<(.*)\>/', $email, $match))

{

return $match['1'];

}

else

{

return $email;

}

}

$clean_email = array();

foreach ($email as $addy)

{

if (preg_match( '/\<(.*)\>/', $addy, $match))

{

$clean_email[] = $match['1'];

}

else

{

$clean_email[] = $addy;

}

}

return $clean_email;

}

// --------------------------------------------------------------------

/**

* Build alternative plain text message

*

* This public function provides the raw message for use

* in plain-text headers of HTML-formatted emails.

* If the user hasn't specified his own alternative message

* it creates one by stripping the HTML

*

* @access private

* @return string

*/

private function _get_alt_message()

{

if ($this->alt_message != "")

{

return $this->word_wrap($this->alt_message, '76');

}

if (preg_match('/\<body.*?\>(.*)\<\/body\>/si', $this->_body, $match))

{

$body = $match['1'];

}

else

{

$body = $this->_body;

}

$body = trim(strip_tags($body));

$body = preg_replace( '#<!--(.*)--\>#', "", $body);

$body = str_replace("\t", "", $body);

for ($i = 20; $i >= 3; $i--)

{

$n = "";

for ($x = 1; $x <= $i; $x ++)

{

$n .= "\n";

}

$body = str_replace($n, "\n\n", $body);

}

return $this->word_wrap($body, '76');

}

// --------------------------------------------------------------------

/**

* Word Wrap

*

* @access public

* @param string

* @param integer

* @return string

*/

public function word_wrap($str, $charlim = '')

{

// Se the character limit

if ($charlim == '')

{

$charlim = ($this->wrapchars == "") ? "76" : $this->wrapchars;

}

// Reduce multiple spaces

$str = preg_replace("| +|", " ", $str);

// Standardize newlines

if (strpos($str, "\r") !== FALSE)

{

$str = str_replace(array("\r\n", "\r"), "\n", $str);

}

// If the current word is surrounded by {unwrap} tags we'll

// strip the entire chunk and replace it with a marker.

$unwrap = array();

if (preg_match_all("|(\{unwrap\}.+?\{/unwrap\})|s", $str, $matches))

{

for ($i = 0; $i < count($matches['0']); $i++)

{

$unwrap[] = $matches['1'][$i];

$str = str_replace($matches['1'][$i], "{{unwrapped".$i."}}", $str);

}

}

// Use PHP's native public function to do the initial wordwrap.

// We set the cut flag to FALSE so that any individual words that are

// too long get left alone.  In the next step we'll deal with them.

$str = wordwrap($str, $charlim, "\n", FALSE);

// Split the string into individual lines of text and cycle through them

$output = "";

foreach (explode("\n", $str) as $line)

{

// Is the line within the allowed character count?

// If so we'll join it to the output and continue

if (strlen($line) <= $charlim)

{

$output .= $line.$this->newline;

continue;

}

$temp = '';

while ((strlen($line)) > $charlim)

{

// If the over-length word is a URL we won't wrap it

if (preg_match("!\[url.+\]|://|wwww.!", $line))

{

break;

}

// Trim the word down

$temp .= substr($line, 0, $charlim-1);

$line = substr($line, $charlim-1);

}

// If $temp contains data it means we had to split up an over-length

// word into smaller chunks so we'll add it back to our current line

if ($temp != '')

{

$output .= $temp.$this->newline.$line;

}

else

{

$output .= $line;

}

$output .= $this->newline;

}

// Put our markers back

if (count($unwrap) > 0)

{

foreach ($unwrap as $key => $val)

{

$output = str_replace("{{unwrapped".$key."}}", $val, $output);

}

}

return $output;

}

// --------------------------------------------------------------------

/**

* Build final headers

*

* @access private

* @param string

* @return string

*/

private function _build_headers()

{

$this->_set_header('X-Sender', $this->clean_email($this->_headers['From']));

$this->_set_header('X-Mailer', $this->useragent);

$this->_set_header('X-Priority', $this->_priorities[$this->priority - 1]);

$this->_set_header('Message-ID', $this->_get_message_id());

$this->_set_header('Mime-Version', '1.0');

}

// --------------------------------------------------------------------

/**

* Write Headers as a string

*

* @access private

* @return void

*/

private function _write_headers()

{

if ($this->protocol == 'mail')

{

$this->_subject = $this->_headers['Subject'];

unset($this->_headers['Subject']);

}

reset($this->_headers);

$this->_header_str = "";

foreach ($this->_headers as $key => $val)

{

$val = trim($val);

if ($val != "")

{

$this->_header_str .= $key.": ".$val.$this->newline;

}

}

if ($this->_get_protocol() == 'mail')

{

$this->_header_str = rtrim($this->_header_str);

}

}

// --------------------------------------------------------------------

/**

* Build Final Body and attachments

*

* @access private

* @return void

*/

private function _build_message()

{

if ($this->wordwrap === TRUE  AND  $this->mailtype != 'html')

{

$this->_body = $this->word_wrap($this->_body);

}

$this->_set_boundaries();

$this->_write_headers();

$hdr = ($this->_get_protocol() == 'mail') ? $this->newline : '';

$body = '';

switch ($this->_get_content_type())

{

case 'plain' :

$hdr .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;

$hdr .= "Content-Transfer-Encoding: " . $this->_get_encoding();

if ($this->_get_protocol() == 'mail')

{

$this->_header_str .= $hdr;

$this->_finalbody = $this->_body;

}

else

{

$this->_finalbody = $hdr . $this->newline . $this->newline . $this->_body;

}

return;

break;

case 'html' :

if ($this->send_multipart === FALSE)

{

$hdr .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;

$hdr .= "Content-Transfer-Encoding: quoted-printable";

}

else

{

$hdr .= "Content-Type: multipart/alternative; boundary=\"" . $this->_alt_boundary . "\"" . $this->newline . $this->newline;

$body .= $this->_get_mime_message() . $this->newline . $this->newline;

$body .= "--" . $this->_alt_boundary . $this->newline;

$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;

$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;

$body .= $this->_get_alt_message() . $this->newline . $this->newline . "--" . $this->_alt_boundary . $this->newline;

$body .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;

$body .= "Content-Transfer-Encoding: quoted-printable" . $this->newline . $this->newline;

}

$this->_finalbody = $body . $this->_prep_quoted_printable($this->_body) . $this->newline . $this->newline;

if ($this->_get_protocol() == 'mail')

{

$this->_header_str .= $hdr;

}

else

{

$this->_finalbody = $hdr . $this->_finalbody;

}

if ($this->send_multipart !== FALSE)

{

$this->_finalbody .= "--" . $this->_alt_boundary . "--";

}

return;

break;

case 'plain-attach' :

$hdr .= "Content-Type: multipart/".$this->multipart."; boundary=\"" . $this->_atc_boundary."\"" . $this->newline .$this->newline;

if ($this->_get_protocol() == 'mail')

{

$this->_header_str .= $hdr;

}

$body .= $this->_get_mime_message() . $this->newline . $this->newline;

$body .= "--" . $this->_atc_boundary . $this->newline;

$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;

$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;

$body .= $this->_body . $this->newline . $this->newline;

break;

case 'html-attach' :

$hdr .= "Content-Type: multipart/".$this->multipart."; boundary=\"" . $this->_atc_boundary."\"" . $this->newline .$this->newline;

if ($this->_get_protocol() == 'mail')

{

$this->_header_str .= $hdr;

}

$body .= $this->_get_mime_message() . $this->newline . $this->newline;

$body .= "--" . $this->_atc_boundary . $this->newline;

$body .= "Content-Type: multipart/alternative; boundary=\"" . $this->_alt_boundary . "\"" . $this->newline .$this->newline;

$body .= "--" . $this->_alt_boundary . $this->newline;

$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;

$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;

$body .= $this->_get_alt_message() . $this->newline . $this->newline . "--" . $this->_alt_boundary . $this->newline;

$body .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;

$body .= "Content-Transfer-Encoding: quoted-printable" . $this->newline . $this->newline;

$body .= $this->_prep_quoted_printable($this->_body) . $this->newline . $this->newline;

$body .= "--" . $this->_alt_boundary . "--" . $this->newline . $this->newline;

break;

}

$attachment = array();

$z = 0;

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

{

$filename = $this->_attach_name[$i];

$basename = basename($filename);

$ctype = $this->_attach_type[$i];

if ( ! file_exists($filename))

{

$this->_set_error_message('email_attachment_missing', $filename);

return FALSE;

}

$h  = "--".$this->_atc_boundary.$this->newline;

$h .= "Content-type: ".$ctype."; ";

$h .= "name=\"".$basename."\"".$this->newline;

$h .= "Content-Disposition: ".$this->_attach_disp[$i].";".$this->newline;

$h .= "Content-Transfer-Encoding: base64".$this->newline;

$attachment[$z++] = $h;

$file = filesize($filename) +1;

if ( ! $fp = fopen($filename, FOPEN_READ))

{

$this->_set_error_message('email_attachment_unreadable', $filename);

return FALSE;

}

$attachment[$z++] = chunk_split(base64_encode(fread($fp, $file)));

fclose($fp);

}

$body .= implode($this->newline, $attachment).$this->newline."--".$this->_atc_boundary."--";

if ($this->_get_protocol() == 'mail')

{

$this->_finalbody = $body;

}

else

{

$this->_finalbody = $hdr . $body;

}

return;

}

// --------------------------------------------------------------------

/**

* Prep Quoted Printable

*

* Prepares string for Quoted-Printable Content-Transfer-Encoding

* Refer to RFC 2045 http://www.ietf.org/rfc/rfc2045.txt

*

* @access private

* @param string

* @param integer

* @return string

*/

private function _prep_quoted_printable($str, $charlim = '')

{

// Set the character limit

// Don't allow over 76, as that will make servers and MUAs barf

// all over quoted-printable data

if ($charlim == '' OR $charlim > '76')

{

$charlim = '76';

}

// Reduce multiple spaces

$str = preg_replace("| +|", " ", $str);

// kill nulls

$str = preg_replace('/\x00+/', '', $str);

// Standardize newlines

if (strpos($str, "\r") !== FALSE)

{

$str = str_replace(array("\r\n", "\r"), "\n", $str);

}

// We are intentionally wrapping so mail servers will encode characters

// properly and MUAs will behave, so {unwrap} must go!

$str = str_replace(array('{unwrap}', '{/unwrap}'), '', $str);

// Break into an array of lines

$lines = explode("\n", $str);

$escape = '=';

$output = '';

foreach ($lines as $line)

{

$length = strlen($line);

$temp = '';

// Loop through each character in the line to add soft-wrap

// characters at the end of a line " =\r\n" and add the newly

// processed line(s) to the output (see comment on $crlf class property)

for ($i = 0; $i < $length; $i++)

{

// Grab the next character

$char = substr($line, $i, 1);

$ascii = ord($char);

// Convert spaces and tabs but only if it's the end of the line

if ($i == ($length - 1))

{

$char = ($ascii == '32' OR $ascii == '9') ? $escape.sprintf('%02s', dechex($ascii)) : $char;

}

// encode = signs

if ($ascii == '61')

{

$char = $escape.strtoupper(sprintf('%02s', dechex($ascii)));  // =3D

}

// If we're at the character limit, add the line to the output,

// reset our temp variable, and keep on chuggin'

if ((strlen($temp) + strlen($char)) >= $charlim)

{

$output .= $temp.$escape.$this->crlf;

$temp = '';

}

// Add the character to our temporary line

$temp .= $char;

}

// Add our completed line to the output

$output .= $temp.$this->crlf;

}

// get rid of extra CRLF tacked onto the end

$output = substr($output, 0, strlen($this->crlf) * -1);

return $output;

}

// --------------------------------------------------------------------

/**

* Prep Q Encoding

*

* Performs "Q Encoding" on a string for use in email headers.  It's related

* but not identical to quoted-printable, so it has its own method

*

* @access public

* @param str

* @param bool // set to TRUE for processing From: headers

* @return str

*/

private function _prep_q_encoding($str, $from = FALSE)

{

$str = str_replace(array("\r", "\n"), array('', ''), $str);

// Line length must not exceed 76 characters, so we adjust for

// a space, 7 extra characters =??Q??=, and the charset that we will add to each line

$limit = 75 - 7 - strlen($this->charset);

// these special characters must be converted too

$convert = array('_', '=', '?');

if ($from === TRUE)

{

$convert[] = ',';

$convert[] = ';';

}

$output = '';

$temp = '';

for ($i = 0, $length = strlen($str); $i < $length; $i++)

{

// Grab the next character

$char = substr($str, $i, 1);

$ascii = ord($char);

// convert ALL non-printable ASCII characters and our specials

if ($ascii < 32 OR $ascii > 126 OR in_array($char, $convert))

{

$char = '='.dechex($ascii);

}

// handle regular spaces a bit more compactly than =20

if ($ascii == 32)

{

$char = '_';

}

// If we're at the character limit, add the line to the output,

// reset our temp variable, and keep on chuggin'

if ((strlen($temp) + strlen($char)) >= $limit)

{

$output .= $temp.$this->crlf;

$temp = '';

}

// Add the character to our temporary line

$temp .= $char;

}

$str = $output.$temp;

// wrap each line with the shebang, charset, and transfer encoding

// the preceding space on successive lines is required for header "folding"

$str = trim(preg_replace('/^(.*)$/m', ' =?'.$this->charset.'?Q?$1?=', $str));

return $str;

}

// --------------------------------------------------------------------

/**

* Send Email

*

* @access public

* @return bool

*/

public function send()

{

if ($this->_replyto_flag == FALSE)

{

$this->reply_to($this->_headers['From']);

}

if (( ! isset($this->_recipients) AND ! isset($this->_headers['To']))  AND

( ! isset($this->_bcc_array) AND ! isset($this->_headers['Bcc'])) AND

( ! isset($this->_headers['Cc'])))

{

$this->_set_error_message('email_no_recipients');

return FALSE;

}

$this->_build_headers();

if ($this->bcc_batch_mode  AND  count($this->_bcc_array) > 0)

{

if (count($this->_bcc_array) > $this->bcc_batch_size)

return $this->batch_bcc_send();

}

$this->_build_message();

if ( ! $this->_spool_email())

{

return FALSE;

}

else

{

return TRUE;

}

}

// --------------------------------------------------------------------

/**

* Batch Bcc Send.  Sends groups of BCCs in batches

*

* @access public

* @return bool

*/

public function batch_bcc_send()

{

$float = $this->bcc_batch_size -1;

$set = "";

$chunk = array();

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

{

if (isset($this->_bcc_array[$i]))

{

$set .= ", ".$this->_bcc_array[$i];

}

if ($i == $float)

{

$chunk[] = substr($set, 1);

$float = $float + $this->bcc_batch_size;

$set = "";

}

if ($i == count($this->_bcc_array)-1)

{

$chunk[] = substr($set, 1);

}

}

for ($i = 0; $i < count($chunk); $i++)

{

unset($this->_headers['Bcc']);

unset($bcc);

$bcc = $this->_str_to_array($chunk[$i]);

$bcc = $this->clean_email($bcc);

if ($this->protocol != 'smtp')

{

$this->_set_header('Bcc', implode(", ", $bcc));

}

else

{

$this->_bcc_array = $bcc;

}

$this->_build_message();

$this->_spool_email();

}

}

// --------------------------------------------------------------------

/**

* Unwrap special elements

*

* @access private

* @return void

*/

private function _unwrap_specials()

{

$this->_finalbody = preg_replace_callback("/\{unwrap\}(.*?)\{\/unwrap\}/si", array($this, '_remove_nl_callback'), $this->_finalbody);

}

// --------------------------------------------------------------------

/**

* Strip line-breaks via callback

*

* @access private

* @return string

*/

private function _remove_nl_callback($matches)

{

if (strpos($matches[1], "\r") !== FALSE OR strpos($matches[1], "\n") !== FALSE)

{

$matches[1] = str_replace(array("\r\n", "\r", "\n"), '', $matches[1]);

}

return $matches[1];

}

// --------------------------------------------------------------------

/**

* Spool mail to the mail server

*

* @access private

* @return bool

*/

private function _spool_email()

{

$this->_unwrap_specials();

switch ($this->_get_protocol())

{

case 'mail' :

if ( ! $this->_send_with_mail())

{

$this->_set_error_message('email_send_failure_phpmail');

return FALSE;

}

break;

case 'sendmail' :

if ( ! $this->_send_with_sendmail())

{

$this->_set_error_message('email_send_failure_sendmail');

return FALSE;

}

break;

case 'smtp' :

if ( ! $this->_send_with_smtp())

{

$this->_set_error_message('email_send_failure_smtp');

return FALSE;

}

break;

}

$this->_set_error_message('email_sent', $this->_get_protocol());

return TRUE;

}

// --------------------------------------------------------------------

/**

* Send using mail()

*

* @access private

* @return bool

*/

private function _send_with_mail()

{

if ($this->_safe_mode == TRUE)

{

if ( ! mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str))

{

return FALSE;

}

else

{

return TRUE;

}

}

else

{

// most documentation of sendmail using the "-f" flag lacks a space after it, however

// we've encountered servers that seem to require it to be in place.

if ( ! mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str, "-f ".$this->clean_email($this->_headers['From'])))

{

return FALSE;

}

else

{

return TRUE;

}

}

}

// --------------------------------------------------------------------

/**

* Send using Sendmail

*

* @access private

* @return bool

*/

private function _send_with_sendmail()

{

$fp = @popen($this->mailpath . " -oi -f ".$this->clean_email($this->_headers['From'])." -t", 'w');

if ($fp === FALSE OR $fp === NULL)

{

// server probably has popen disabled, so nothing we can do to get a verbose error.

return FALSE;

}

fputs($fp, $this->_header_str);

fputs($fp, $this->_finalbody);

$status = pclose($fp);

if (version_compare(PHP_VERSION, '4.2.3') == -1)

{

$status = $status >> 8 & 0xFF;

}

if ($status != 0)

{

$this->_set_error_message('email_exit_status', $status);

$this->_set_error_message('email_no_socket');

return FALSE;

}

return TRUE;

}

// --------------------------------------------------------------------

/**

* Send using SMTP

*

* @access private

* @return bool

*/

private function _send_with_smtp()

{

if ($this->smtp_host == '')

{

$this->_set_error_message('email_no_hostname');

return FALSE;

}

$this->_smtp_connect();

$this->_smtp_authenticate();

$this->_send_command('from', $this->clean_email($this->_headers['From']));

foreach ($this->_recipients as $val)

{

$this->_send_command('to', $val);

}

if (count($this->_cc_array) > 0)

{

foreach ($this->_cc_array as $val)

{

if ($val != "")

{

$this->_send_command('to', $val);

}

}

}

if (count($this->_bcc_array) > 0)

{

foreach ($this->_bcc_array as $val)

{

if ($val != "")

{

$this->_send_command('to', $val);

}

}

}

$this->_send_command('data');

// perform dot transformation on any lines that begin with a dot

$this->_send_data($this->_header_str . preg_replace('/^\./m', '..$1', $this->_finalbody));

$this->_send_data('.');

$reply = $this->_get_smtp_data();

$this->_set_error_message($reply);

if (strncmp($reply, '250', 3) != 0)

{

$this->_set_error_message('email_smtp_error', $reply);

return FALSE;

}

$this->_send_command('quit');

return TRUE;

}

// --------------------------------------------------------------------

/**

* SMTP Connect

*

* @access private

* @param string

* @return string

*/

private function _smtp_connect()

{

$this->_smtp_connect = fsockopen($this->smtp_host,

$this->smtp_port,

$errno,

$errstr,

$this->smtp_timeout);

if ( ! is_resource($this->_smtp_connect))

{

$this->_set_error_message('email_smtp_error', $errno." ".$errstr);

return FALSE;

}

$this->_set_error_message($this->_get_smtp_data());

return $this->_send_command('hello');

}

// --------------------------------------------------------------------

/**

* Send SMTP command

*

* @access private

* @param string

* @param string

* @return string

*/

private function _send_command($cmd, $data = '')

{

switch ($cmd)

{

case 'hello' :

if ($this->_smtp_auth OR $this->_get_encoding() == '8bit')

$this->_send_data('EHLO '.$this->_get_hostname());

else

$this->_send_data('HELO '.$this->_get_hostname());

$resp = 250;

break;

case 'from' :

$this->_send_data('MAIL FROM:<'.$data.'>');

$resp = 250;

break;

case 'to' :

$this->_send_data('RCPT TO:<'.$data.'>');

$resp = 250;

break;

case 'data' :

$this->_send_data('DATA');

$resp = 354;

break;

case 'quit' :

$this->_send_data('QUIT');

$resp = 221;

break;

}

$reply = $this->_get_smtp_data();

$this->_debug_msg[] = "<pre>".$cmd.": ".$reply."</pre>";

if (substr($reply, 0, 3) != $resp)

{

$this->_set_error_message('email_smtp_error', $reply);

return FALSE;

}

if ($cmd == 'quit')

{

fclose($this->_smtp_connect);

}

return TRUE;

}

// --------------------------------------------------------------------

/**

*  SMTP Authenticate

*

* @access private

* @return bool

*/

private function _smtp_authenticate()

{

if ( ! $this->_smtp_auth)

{

return TRUE;

}

if ($this->smtp_user == ""  AND  $this->smtp_pass == "")

{

$this->_set_error_message('email_no_smtp_unpw');

return FALSE;

}

$this->_send_data('AUTH LOGIN');

$reply = $this->_get_smtp_data();

if (strncmp($reply, '334', 3) != 0)

{

$this->_set_error_message('email_failed_smtp_login', $reply);

return FALSE;

}

$this->_send_data(base64_encode($this->smtp_user));

$reply = $this->_get_smtp_data();

if (strncmp($reply, '334', 3) != 0)

{

$this->_set_error_message('email_smtp_auth_un', $reply);

return FALSE;

}

$this->_send_data(base64_encode($this->smtp_pass));

$reply = $this->_get_smtp_data();

if (strncmp($reply, '235', 3) != 0)

{

$this->_set_error_message('email_smtp_auth_pw', $reply);

return FALSE;

}

return TRUE;

}

// --------------------------------------------------------------------

/**

* Send SMTP data

*

* @access private

* @return bool

*/

private function _send_data($data)

{

if ( ! fwrite($this->_smtp_connect, $data . $this->newline))

{

$this->_set_error_message('email_smtp_data_failure', $data);

return FALSE;

}

else

{

return TRUE;

}

}

// --------------------------------------------------------------------

/**

* Get SMTP data

*

* @access private

* @return string

*/

private function _get_smtp_data()

{

$data = "";

while ($str = fgets($this->_smtp_connect, 512))

{

$data .= $str;

if (substr($str, 3, 1) == " ")

{

break;

}

}

return $data;

}

// --------------------------------------------------------------------

/**

* Get Hostname

*

* @access private

* @return string

*/

private function _get_hostname()

{

return (isset($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : 'localhost.localdomain';

}

// --------------------------------------------------------------------

/**

* Get IP

*

* @access private

* @return string

*/

private function _get_ip()

{

if ($this->_IP !== FALSE)

{

return $this->_IP;

}

$cip = (isset($_SERVER['HTTP_CLIENT_IP']) AND $_SERVER['HTTP_CLIENT_IP'] != "") ? $_SERVER['HTTP_CLIENT_IP'] : FALSE;

$rip = (isset($_SERVER['REMOTE_ADDR']) AND $_SERVER['REMOTE_ADDR'] != "") ? $_SERVER['REMOTE_ADDR'] : FALSE;

$fip = (isset($_SERVER['HTTP_X_FORWARDED_FOR']) AND $_SERVER['HTTP_X_FORWARDED_FOR'] != "") ?$_SERVER['HTTP_X_FORWARDED_FOR'] : FALSE;

if ($cip && $rip) $this->_IP = $cip;

elseif ($rip) $this->_IP = $rip;

elseif ($cip) $this->_IP = $cip;

elseif ($fip) $this->_IP = $fip;

if (strpos($this->_IP, ',') !== FALSE)

{

$x = explode(',', $this->_IP);

$this->_IP = end($x);

}

if ( ! preg_match( "/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/", $this->_IP))

{

$this->_IP = '0.0.0.0';

}

unset($cip);

unset($rip);

unset($fip);

return $this->_IP;

}

// --------------------------------------------------------------------

/**

* Get Debug Message

*

* @access public

* @return string

*/

public function print_debugger()

{

$msg = '';

if (count($this->_debug_msg) > 0)

{

foreach ($this->_debug_msg as $val)

{

$msg .= $val;

}

}

$msg .= "<pre>".$this->_header_str."\n".htmlspecialchars($this->_subject)."\n".htmlspecialchars($this->_finalbody).'</pre>';

return $msg;

}

// --------------------------------------------------------------------

/**

* Set Message

*

* @access private

* @param string

* @return string

*/

private function _set_error_message($msg, $val = '')

{

//$CI =& get_instance();

//$CI->lang->load('email');

//if (FALSE === ($line = $CI->lang->line($msg)))

//{

$this->_debug_msg[] = str_replace('%s', $val, $msg)."<br />";

//}

//else

//{

//$this->_debug_msg[] = str_replace('%s', $val, $line)."<br />";

//}

}

// --------------------------------------------------------------------

/**

* Mime Types

*

* @access private

* @param string

* @return string

*/

private function _mime_types($ext = "")

{

$mimes = array( 'hqx' => 'application/mac-binhex40',

'cpt' => 'application/mac-compactpro',

'doc' => 'application/msword',

'bin' => 'application/macbinary',

'dms' => 'application/octet-stream',

'lha' => 'application/octet-stream',

'lzh' => 'application/octet-stream',

'exe' => 'application/octet-stream',

'class' => 'application/octet-stream',

'psd' => 'application/octet-stream',

'so' => 'application/octet-stream',

'sea' => 'application/octet-stream',

'dll' => 'application/octet-stream',

'oda' => 'application/oda',

'pdf' => 'application/pdf',

'ai' => 'application/postscript',

'eps' => 'application/postscript',

'ps' => 'application/postscript',

'smi' => 'application/smil',

'smil' => 'application/smil',

'mif' => 'application/vnd.mif',

'xls' => 'application/vnd.ms-excel',

'ppt' => 'application/vnd.ms-powerpoint',

'wbxml' => 'application/vnd.wap.wbxml',

'wmlc' => 'application/vnd.wap.wmlc',

'dcr' => 'application/x-director',

'dir' => 'application/x-director',

'dxr' => 'application/x-director',

'dvi' => 'application/x-dvi',

'gtar' => 'application/x-gtar',

'php' => 'application/x-httpd-php',

'php4' => 'application/x-httpd-php',

'php3' => 'application/x-httpd-php',

'phtml' => 'application/x-httpd-php',

'phps' => 'application/x-httpd-php-source',

'js' => 'application/x-javascript',

'swf' => 'application/x-shockwave-flash',

'sit' => 'application/x-stuffit',

'tar' => 'application/x-tar',

'tgz' => 'application/x-tar',

'xhtml' => 'application/xhtml+xml',

'xht' => 'application/xhtml+xml',

'zip' => 'application/zip',

'mid' => 'audio/midi',

'midi' => 'audio/midi',

'mpga' => 'audio/mpeg',

'mp2' => 'audio/mpeg',

'mp3' => 'audio/mpeg',

'aif' => 'audio/x-aiff',

'aiff' => 'audio/x-aiff',

'aifc' => 'audio/x-aiff',

'ram' => 'audio/x-pn-realaudio',

'rm' => 'audio/x-pn-realaudio',

'rpm' => 'audio/x-pn-realaudio-plugin',

'ra' => 'audio/x-realaudio',

'rv' => 'video/vnd.rn-realvideo',

'wav' => 'audio/x-wav',

'bmp' => 'image/bmp',

'gif' => 'image/gif',

'jpeg' => 'image/jpeg',

'jpg' => 'image/jpeg',

'jpe' => 'image/jpeg',

'png' => 'image/png',

'tiff' => 'image/tiff',

'tif' => 'image/tiff',

'css' => 'text/css',

'html' => 'text/html',

'htm' => 'text/html',

'shtml' => 'text/html',

'txt' => 'text/plain',

'text' => 'text/plain',

'log' => 'text/plain',

'rtx' => 'text/richtext',

'rtf' => 'text/rtf',

'xml' => 'text/xml',

'xsl' => 'text/xml',

'mpeg' => 'video/mpeg',

'mpg' => 'video/mpeg',

'mpe' => 'video/mpeg',

'qt' => 'video/quicktime',

'mov' => 'video/quicktime',

'avi' => 'video/x-msvideo',

'movie' => 'video/x-sgi-movie',

'doc' => 'application/msword',

'word' => 'application/msword',

'xl' => 'application/excel',

'eml' => 'message/rfc822'

);

return ( ! isset($mimes[strtolower($ext)])) ? "application/x-unknown-content-type" : $mimes[strtolower($ext)];

}

}

 来自CodeIgniter框架发送邮件类

调用 

 

<?php

$title="标题";

$content=" 内容";

$email="接受者email";

require_once("email.php");

$mail = new Email();

$mail->from("发送的email", "medsci_api");

$mail->to($email);

$mail->bcc('123@163.com');//暗送

$mail->subject($title);

$mail->message($content);

if ($mail->send())

{

$datas[]=array('return_status'=>'ok');

$datas[]=array('feedback'=>'ok');

}else{

$datas[]=array('return_status'=>'error','level'=>0,'msg'=>gb_iconv_utf8('失败'));

}

?>