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<?php
/**
* Part of bdrem
*
* PHP version 5
*
* @category Tools
* @package Bdrem
* @author Christian Weiske <cweiske@cweiske.de>
* @copyright 2014 Christian Weiske
* @license http://www.gnu.org/licenses/agpl.html GNU AGPL v3
* @link http://cweiske.de/bdrem.htm
*/
namespace bdrem;
require_once 'Mail/mime.php';
/**
* Send out mails
*
* @category Tools
* @package Bdrem
* @author Christian Weiske <cweiske@cweiske.de>
* @copyright 2014 Christian Weiske
* @license http://www.gnu.org/licenses/agpl.html GNU AGPL v3
* @version Release: @package_version@
* @link http://cweiske.de/bdrem.htm
*/
class Renderer_Mail extends Renderer
{
/**
* Add HTML part to email
* @var bool
*/
public $html = true;
/**
* CSS "inline" in tags, or "separate" in a style block
* @var string
*/
public $css = 'inline';
/**
* Render the events - send out mails.
*
* Uses the config's "mail_to" array as recipients.
* Sends out a single mail for each recipient.
* Config "mail_from" can also be used.
*
* @param array $arEvents Array of events to display
*
* @return void
*/
public function render($arEvents)
{
$todays = array();
foreach ($arEvents as $event) {
if ($event->days == 0) {
$todays[] = $this->shorten($event->title, 15);
}
}
$subject = 'Birthday reminder';
if (count($todays)) {
$subject .= ': ' . implode(', ', $todays);
}
$rc = new Renderer_Console();
$rht = new Renderer_HtmlTable();
$hdrs = array(
'From' => $this->config->get('mail_from', 'birthday@example.org'),
'Date' => date('r'),
'Auto-Submitted' => 'auto-generated'
);
$mime = new \Mail_mime(
array(
'eol' => "\n",
'head_charset' => 'utf-8',
'text_charset' => 'utf-8',
'html_charset' => 'utf-8',
)
);
$mime->setTXTBody($rc->render($arEvents));
if ($this->html) {
if ($this->css == 'inline') {
$html = $this->inlineCss(
$rht->render($arEvents),
Renderer_Html::getCss()
);
} else {
$html = '<style type="text/css">'
. Renderer_Html::getCss()
. '</style>'
. $rht->render($arEvents);
}
$mime->setHTMLBody($this->minifyHtml($html));
}
$body = $mime->get();
$hdrs = $mime->headers($hdrs);
$textHeaders = '';
foreach ($hdrs as $k => $v) {
$textHeaders .= $k . ': ' . $v . "\n";
}
if (!$this->config->get('debug', false)) {
foreach ((array) $this->config->get('mail_to') as $recipient) {
mail($recipient, $subject, $body, $textHeaders);
}
} else {
echo "Subject: " . $subject . "\n";
echo $textHeaders;
echo "\n";
echo $body;
}
}
/**
* Shorten the given string to the specified length.
* Adds ... when the string was too long
*
* @param string $str String to shorten
* @param integer $len Maximum length of the string
*
* @return string Shortened string
*/
protected function shorten($str, $len)
{
if (mb_strlen($str) <= $len) {
return $str;
}
return mb_substr($str, 0, $len - 1) . '…';
}
/**
* Takes the HTML and CSS code and inlines CSS into HTML.
*
* This is important for some e-mail clients which do
* not interpret <style> tags but only support inline styles.
*
* Works nicely with bdrem's CSS. If you need more CSS selector
* support, have a look at https://github.com/jjriv/emogrifier
*
* @param string $html HTML code
* @param string $css CSS code
*
* @return string HTML with inlined CSS
*/
protected function inlineCss($html, $css)
{
preg_match_all(
'#([^{]+) {([^}]+)}#m',
$css,
$parts
);
$rules = array();
foreach ($parts[1] as $key => $rule) {
$mrules = explode(',', $rule);
foreach ($mrules as $rule) {
$rule = trim($rule);
$style = trim($parts[2][$key]);
$rules[$rule] = preg_replace(
'#([:;]) +#', '\1',
str_replace(
["\r", "\n", ' '],
['', '', ' '],
$style
)
);
}
}
$sx = simplexml_load_string($html);
foreach ($rules as $rule => $style) {
$mode = null;
$parts = explode(' ', $rule);
$xp = '';
foreach ($parts as $part) {
$part = trim($part);
if (strpos($part, ':') !== false) {
//.foo:before
list($part, $mode) = explode(':', $part);
if ($mode == 'hover') {
continue 2;
}
}
if (strpos($part, '.') === false) {
//tag only
if ($part == '') {
$xp = '//*';
} else {
$xp .= '//' . $part;
}
} else {
//tag.class
list($tag, $class) = explode('.', $part);
if ($tag == '') {
$tag = '*';
}
$xp .= '//' . $tag
. '[contains('
. 'concat(" ", normalize-space(@class), " "), '
. '" ' . $class . ' "'
. ')]';
}
}
$res = $sx->xpath($xp);
//var_dump($res);die();
//var_dump($xp, $style);
foreach ($res as $xelem) {
if ($mode === null) {
$xelem['style'] .= $style;
} else if ($mode == 'before') {
$xelem[0] = preg_replace(
'#content:\s*"(.+)"#', '\1', $style
);
}
}
}
$html = $sx->asXML();
//strip xml header
$lines = explode("\n", $html);
unset($lines[0]);
$html = implode("\n", $lines);
//echo $html . "\n";die();
return $html;
}
/**
* Remove whitespace between tags
*
* @param string $html HTML code
*
* @return string Smaller HTML code
*/
protected function minifyHtml($html)
{
$html = trim(preg_replace("#[\n\r ]+<#", '<', $html));
return $html;
}
}
?>
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