angeloisme
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注册 2006-6-19
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共享自己MIME邮件编码解码包,写的不好,就当是抛砖引玉了
这是一个实现MIME邮件编码解码的包,是我去年闲着没事的时候写.当初写的时候并不是想给什么人或公司用,所以在性能方面没做什么考虑,纯属实验性质的.其实我根本不觉得自己所在的公司会用它,因为实现邮件的编码和解码可以有更好更方便的方法,我写它只是为了不折不扣的诠释MIME协议,就是一个玩意儿,用来排遣一下无聊,疏放一下心中的块垒罢了.如果有人觉得写得好,尽管拿去用,总比烂在我自己手里要强.而且我非常欢迎有人在看后能给我指出一些不足,给我提提意见,我先谢谢大家了.
文件总共有十个,后面还有一个例子,如果熟悉MIME看看就能明白,帖子里还有压缩包.
文件 1/10 MIME.Class.php
<?php
/**
* MIME操作的抽象类只封装一些常量和常用函数
* @author 满鸿
* @version 1.0
* @abstract
*/
abstract class MIME
{
/**
* MIME版本
* @static
*/
const MIME_VERSION = '1.0';
/**
* MIME语言缩写
* @static
*/
const EN = 'en';
const ZH = 'zh';
const JA = 'ja';
const KO = 'ko';
const FR = 'fr';
const DE = 'de';
const RU = 'ru';
/**
* 邮件优先级-垃圾信件
* @static
*/
const PRIOTITY_1 = 1;
/**
* 邮件优先级-无关紧要
* @static
*/
const PRIOTITY_2 = 2;
/**
* 邮件优先级-普通信件
* @static
*/
const PRIOTITY_3 = 3;
/**
* 邮件优先级-重要信件
* @static
*/
const PRIOTITY_4 = 4;
/**
* 邮件优先级-十万火急
* @static
*/
const PRIOTITY_5 = 5;
/**
* 显示实体时的排序优先:content-type
* @static
*/
const TYPE = 1;
/**
* 显示实体时的排序优先:content-language
* @static
*/
const LANGUAGE = 2;
/**
* 实体显示方式:附件
* @static
*/
const ATTACHMENT = 'attachment';
/**
* 实体显示方式:内联显示
* @static
*/
const INLINE = 'inline';
/**
* 编码方式
* @static
*/
const EN7BIT = '7bit';
const EN8BIT = '8bit';
const ENBINARY = 'binary';
const ENBASE64 = 'base64';
const ENQP = 'quoted-printable';
/**
* 字符集
* @static
*/
const US_ASCII = 'us-ascii';
const BS_4730 = 'bs_4730';
const ISO_2022_KR = 'iso-2022-kr';
const EUC_KR = 'euc-kr';
const ISO_2022_JP_2 = 'iso-2202-jp-2';
const ISO_2022_CN = 'iso-2022-cn';
const ISO_2022_CN_EXT = 'iso-2022-cn-ext';
const JIS_C6220_1969_jp = 'jis-c6220-1969-jp';
const KOI8_R = 'koi8-r';
const UTF7 = 'utf-7';
const UTF8 = 'utf-8';
const UTF16 = 'utf-16';
const UTF32 = 'utf-32';
const GBK = 'gbk';
const GB18030 = 'gb18030';
const Shift_JIS = 'shift_jis';
const EUC_JP = 'euc-jp';
const GB2312 = 'gb2312';
const Big5 = 'big5';
const HZ_GB_2312 = 'hz_gb_2312';
const ISO_8859_1 = 'iso-8859-1';
const ISO_8859_2 = 'iso-8859-2';
const ISO_8859_3 = 'iso-8859-3';
const ISO_8859_4 = 'iso-8859-4';
const ISO_8859_5 = 'iso-8859-5';
const ISO_8859_6 = 'iso-8859-6';
const ISO_8859_7 = 'iso-8859-7';
const ISO_8859_8 = 'iso-8859-8';
const ISO_8859_9 = 'iso-8859-9';
const ISO_8859_10 = 'iso-8859-10';
const ISO_8859_13 = 'iso-8859-13';
const ISO_8859_14 = 'iso-8859-14';
const ISO_8859_15 = 'iso-8859-15';
const ISO_8859_16 = 'iso-8859-16';
const UNKNOWN_8BIT = 'unknown-8bit';
/**
* MIME实体类型:单部件实体
* @static
*/
const SINGLE_ENTITY = 'mime_00001';
/**
* MIME实体类型:信头实体
* @static
*/
const RFC822HEADER_ENTITY = 'mime_00002';
/**
* MIME实体类型:多部件实体
* @static
*/
const MULTIPART_ENTITY = 'mime_00003';
/**
* MIME实体类型:rfc822实体
* @static
*/
const RFC822MESSAGE_ENTITY = 'mime_00004';
/**
* MIME实体类型:单部件实体
* @static
*/
const PARITALHEADER_ENTITY = 'mime_00005';
/**
* MIME实体类型:单部件实体
* @static
*/
const PARITALMESSAGE_ENTITY = 'mime_00006';
/**
* MIME实体类型:外部数据实体
* @static
*/
const EXTERNALBODY_ENTITY = 'mime_00007';
/**
* 实体类型
* @static
*/
const TEXT = 'text';
const IMAGE = 'image';
const AUDIO = 'audio';
const VIDEO = 'video';
const APPLICATION = 'application';
const MESSAGE = 'message';
const MULTIPART = 'multipart';
/**
* 单部件实体类型
* @static
*/
const TEXT_PLAIN = 'text/plain';
const TEXT_HTML = 'text/html';
const TEXT_XML = 'text/xml';
const IMAGE_GIF = 'image/gif';
const IMAGE_JPEG = 'image/jpeg';
const IMAGE_PNG = 'image/png';
const IMAGE_BMP = 'image/bmp';
const AUDIO_BASIC = 'audio/basic';
const VIDEO_MPEG = 'video/mpeg';
const TEXT_RFC822_HEADERS = 'text/rfc822-headers';
const APPLICATION_OCTET_STREAM = 'application/octet-stream';
const APPLICATION_MS_EXCEL = 'application/vnd.ms-excel';
const APPLICATION_MS_WORD = 'application/msword';
const APPLICATION_X_GZIP = 'application/x-gzip';
const APPLICATION_PDF = 'application/pdf';
const APPLICATION_MS_PPT = 'application/vnd.ms-powerpoint';
/**
* message类型实体
* @static
*/
const MESSAGE_RFC822 = 'message/rfc822';
const MESSAGE_PARTIAL = 'message/partial';
const MESSAGE_EXTERNAL_BODY = 'message/external-body';
/**
* 多部件实体类型
* @static
*/
const MULTIPART_MIXED = 'multipart/mixed';
const MULTIPART_ALTERNATIVE = 'multipart/alternative';
const MULTIPART_DIGEST = 'multipart/digest';
const MULTIPART_PARALLEL = 'multipart/parallel';
const MULTIPART_RELATED = 'multipart/related';
/**
* 对字符进行quoted-printable编码，适用于文本实体内容的编码
*
* @param string $str
* @return string 编码后的字符串
*/
public static function quoted_printable_encode($str)
{
$all = str_split($str);
$str = '';
$line_size = 0;
$is_encode = false;
$all_size = count($all);
foreach ($all as $key => $tmp)
{
$ascii = ord($tmp);
if (($ascii >= 33 && $ascii <= 60) || ($ascii >= 62 && $ascii <= 126)
|| $ascii === 32) {
if (($ascii >= 33 && $ascii <= 36) || ($ascii >= 91 && $ascii <= 94)
|| ($ascii >= 123 && $ascii <= 126)
|| $ascii === 64
|| $ascii === 39) {
$is_encode = true;
} else {
$is_encode = false;
}
} else {
$is_encode = true;
}
if($ascii === 32 && $key >= $all_size - 1) {
$is_encode = true;
}
if ($is_encode) {
if (($line_size + 3 > 76) || ($line_size + 3 === 76 && $key < $all_size - 1)) {
$str .= "=rn=" . bin2hex($tmp);
$line_size = 3;
} else {
$str .= '=' . bin2hex($tmp);
$line_size += 3;
}
} else {
if (($line_size + 1 > 76) || ($line_size + 1 === 76 && $key < $all_size - 1)) {
$str .= "=rn" . $tmp;
$line_size = 1;
} else {
$str .= $tmp;
$line_size += 1;
}
}
}
return $str;
}
/**
* 对字符进行quoted-printable编码，适用于信头字段的值
*
* @param string $str
* @return string 编码后的字符串
*/
public static function Q_encode($str)
{
$all = str_split($str);
$str = '';
$is_encode = false;
foreach ($all as $tmp)
{
$ascii = ord($tmp);
if ($ascii >= 48 && $ascii <= 57 || $ascii >= 65 && $ascii <= 90
|| $ascii >= 97 && $ascii <= 122
|| $ascii === 33
|| $ascii === 42
|| $ascii === 43
|| $ascii === 45
|| $ascii === 47
|| $ascii === 61
|| $ascii === 95) {
$is_encode = false;
} else {
$is_encode = true;
}
if ($is_encode) {
$str .= '=' . bin2hex($tmp);
} else {
$str .= $tmp;
}
}
return $str;
}
/**
* 对字符串进行quoted_printable解码，适用于信头字段
*
* @param string $str
* @return string 解码后的字符串
*/
public static function Q_decode($str)
{
return quoted_printable_decode($str);
}
/**
* 对字符串进行base64编码，适用于信头字段
*
* @param string $str
* @return string 返回编码后的字符串
*/
public static function B_encode($str)
{
return base64_encode($str);
}
/**
* 对字符串进行base64解码，适用于信头字段
*
* @param string $str
* @return string 返回解码后的字符串
*/
public static function B_decode($str)
{
return base64_decode($str);
}
/**
* 对信头字段的值进行rfc2047即(=?b?str?=)格式的编码
*
* @param string $str
* @param string $charset 字符集
* @param string $encode 编码方法 B or Q
* @param string $header_len 信头字段本身的长度，用来控制其值的缩进
* @return string 编码后的字符串
*/
public static function rfc2047_encode($str , $charset = 'utf-8', $encode = 'quoted-printable', $header_len = 0)
{
if (strlen($str) <= 0) {
return false;
}
switch ($encode)
{
case MIME::ENBASE64 :
if (strlen('=?' . $charset . '?b?' . base64_encode($str) . '?=') + $header_len > 75) {
$befor = MIME::rfc2047_encode(substr($str, 0, strlen($str) / 2), $charset, $encode, $header_len);
$after = MIME::rfc2047_encode(substr($str, strlen($str) / 2), $charset, $encode);
return $befor . "rnt" . $after;
} else {
return '=?' . $charset . '?b?' . base64_encode($str) . '?=';
}
break;
case MIME::ENQP :
if (strlen('=?' . $charset . '?q?' . MIME::Q_encode($str) . '?=') + $header_len > 75) {
$befor = MIME::rfc2047_encode(substr($str, 0, strlen($str) / 2), $charset, $encode, $header_len);
$after = MIME::rfc2047_encode(substr($str, strlen($str) / 2), $charset, $encode);
return $befor . "rnt" . $after;
} else {
return '=?' . $charset . '?q?' . MIME::Q_encode($str) . '?=';
}
break;
default :
return false;
}
}
/**
* 对信头字段的值进行rfc2047即(=?b?str?=)格式的解码
*
* @param string $str
* @return string 解码后的字符串
*/
public static function rfc2047_decode($str)
{
if (preg_match_all('(=?[^?]+?[^?]?[^?]+?=)', $str, $header_array) <= 0) return false;
$str = array();
foreach ($header_array[0] as $tmp_header)
{
if (preg_match('=?([^?]+)?([^?])?([^?]+)?=', $tmp_header, $tmp_array) <= 0 || count($tmp_array) !== 4) {
$tmp_str['str'] = $tmp_header;
$tmp_str['charset'] = null;
$str[] = $tmp_str;
} else {
if (strtolower($tmp_array[2]) === 'q') {
$tmp_str['str'] = MIME::Q_decode($tmp_array[3]);
} else if (strtolower($tmp_array[2]) === 'b') {
$tmp_str['str'] = MIME::B_decode($tmp_array[3]);
} else {
$tmp_str['str'] = $tmp_array[3];
}
$tmp_str['charset'] = strtolower($tmp_array[1]);
$str[] = $tmp_str;
}
}
return $str;
}
/**
* 检查邮件地址是否合法
*
* @param string $_email
* @return boolean true 合法 || false 不合法
*/
public static function check_email($_email)
{
$atom = '[-a-z0-9!#$%&*+/=?^_`{|}~]';
$domain = '([a-z0-9]([-a-z0-9]*[a-z0-9]+)?)';
$regex = '^' . $atom . '+' . '(.' . $atom . '+)*'. '@' . '(' . $domain . '{1,63}.)+' . $domain . '{2,63}' . '$';
return (eregi($regex, $_email) ? true : false);
}
}
?>
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今年的目标:在全年70%的时间里做到办事靠谱,说话着调 |
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