Postfix 使用虛擬使用者 – 4. 信件解析，讓網頁看得懂

這是一封由 Google Gmail 寄出的信件原始碼，主旨是 sdf 內容 sdf

From pc@hoyo.idv.tw  Sun May 20 14:01:45 2018
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From: =?UTF-8?B?6buD5b+X6LOi?= <pc@hoyo.idv.tw>
Date: Sun, 20 May 2018 14:01:43 +0800
Message-ID: <CAJ060EoTYq_UGkp-SVkvh6KUdk2JOBHFUrWPwkokijNg0sB9XA@mail.gmail.com>
Subject: sdf
To: oenru2@sm.hoyo.idv.tw
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sdf

--000000000000664f74056c9ceba4
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<div dir="ltr">sdf<br></div>

--000000000000664f74056c9ceba4--

From pc@hoyo.idv.tw Sun May 20 14:01:45 2018

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From: =?UTF-8?B?6buD5b+X6LOi?= <pc@hoyo.idv.tw>

Date: Sun, 20 May 2018 14:01:43 +0800

Message-ID: <CAJ060EoTYq_UGkp-SVkvh6KUdk2JOBHFUrWPwkokijNg0sB9XA@mail.gmail.com>

Subject: sdf

To: oenru2@sm.hoyo.idv.tw

Content-Type: multipart/alternative; boundary="000000000000664f74056c9ceba4"

--000000000000664f74056c9ceba4

Content-Type: text/plain; charset="UTF-8"

sdf

--000000000000664f74056c9ceba4

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--000000000000664f74056c9ceba4--

SMTP 本來在收到這封信時，會解析 To: 等內容確定這封信是要給誰，然後將信件歸到該使用者的檔案或資料夾內，使用者使用讀信軟體時就會進行內容解讀，將寄信人、收件人、主旨、內容等一般資訊列出

可是當我們要把信件呈現在網頁上時，就必須先把信件內容「翻譯」成網頁可以顯示的結果，例如 ?UTF-8?B?6buD5b+X6LOi?= 這種 RFC2047 的編碼方式，還有將不同的字元編碼統一轉成 UTF-8 等等等之類的工作

PHP 的信件解析函式庫

Mailparse Functions

幸運的是 PHP 不愧是成熟的語言，什麼風浪都見過，針對信件有了專門的解析函式庫，不幸的是這是 PECL 所以需要另外安裝載入

安裝、載入 Mailparse

Ubuntu

# apt install php-dev
# apt install php-mailparse

1 2	# apt install php-dev # apt install php-mailparse

CentOS 7 + PHP 7.2

# yum install php-pear php-devel
# pear channel-update pecl.php.net
# yum install http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/r/re2c-0.14.3-2.el7.x86_64.rpm
# pear install pecl/mailparse

# yum install php-pear php-devel

# pear channel-update pecl.php.net

# yum install http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/r/re2c-0.14.3-2.el7.x86_64.rpm

# pear install pecl/mailparse

CentOS 6 + php5.3

安裝 mailparse

# yum install re2c
# pear install pecl/mailparse-2.1.6

1 2	# yum install re2c # pear install pecl/mailparse-2.1.6

載入 extension ，檔案必須自己產生

vi /etc/php.d/40-mailparse.ini
extension=mailparse.so

1 2	vi /etc/php.d/40-mailparse.ini extension=mailparse.so

重新啟動 httpd

# systemctl restart httpd

1	# systemctl restart httpd

CentOS 6

/etc/rd.d/init.d/httpd restart

1	/etc/rd.d/init.d/httpd restart

Hoyo 自己寫的解析程式

本來是用 MIME-mail-parser 這個別人寫的直接套，後來因為 X 和 XX 以及 XXX 種種的原因，在消音了無數次之後果斷自己寫

<?php
mb_internal_encoding('UTF-8');


class HoyoMailParser
{
    function __construct($a)
    {
        define( 'FilePath', '/tmp' );

        $info = array();
        $section = array();
        $header = array();
        $j = 0;

        $mail = mailparse_msg_create();
        mailparse_msg_parse($mail, $a);
        $struct = mailparse_msg_get_structure($mail);
        //print_r($struct);

        foreach($struct as $st) {
            $section[] = mailparse_msg_get_part($mail, $st);
        }

        foreach( $section as $k=>$s ){
            $info[] = mailparse_msg_get_part_data($s);
        }
        //print_r($info);

        // 信件 header
        $h = $info[0]['headers'];
        foreach( $h as $k=>$v ){
            //echo $v ."---\r\n";
            if ( is_string($v) ) $header[$k] = mb_decode_mimeheader($v);
        }
        $this->Header = $header;
        //print_r( $header );

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

            // 接收 part data
            $GLOBALS["catchData"] = '';
            mailparse_msg_extract_part($section[$i], $a, "catchData");
            $tempData = $GLOBALS["catchData"];

            //  [transfer-encoding] => 8bit
            if ( $info[$i]['headers']['transfer-encoding'] =='8bit' ){
                $tempData = mb_decode_mimeheader($tempData);
            }

            // 文字編碼轉換
            if ( strtolower($info[$i]['charset']) !='utf-8' ){
                $tempData = mb_convert_encoding( $tempData, "UTF-8", $info[$i]['charset'] );
            }

            // HTML
            if ( preg_match('/text\/html/i', $info[$i]['headers']['content-type'] ) ){
                $this->Body['HTML'] = $tempData;
            }

            // 純文字
            if ( preg_match('/text\/plain/i', $info[$i]['headers']['content-type'] ) ){
                $this->Body['Plain'] = $tempData;
            }

            // 檔案附件
            if ( $info[$i]['headers']['x-attachment-id'] !='' ){

                // 儲存檔案
                $ta = explode('.', mb_decode_mimeheader($info[$i]['headers']['content-type']) );
                $afs = trim( array_pop($ta), '"' );
                file_put_contents( FilePath .'/'. $info[$i]['headers']['x-attachment-id'] .'.'. $afs , $tempData);

                // 是否是內嵌圖片
                if ( preg_match('/inline/i', $info[$i]['headers']['content-disposition']) ){
                    $this->Body['HTML'] = str_replace('cid:'.$info[$i]['headers']['x-attachment-id'], 'data:'.$info[$i]['content-type'].';base64,'. base64_encode($GLOBALS["catchData"]), $this->Body['HTML']);

                    $this->Body['File'][$j] = array(
                        'Filename'=> mb_decode_mimeheader($info[$i]['disposition-filename']),
                        'FileContent' => base64_encode($GLOBALS["catchData"])
                    );
                    $j++;
                }

                // 一般附件
                if ( $info[$i]['content-disposition'] =='attachment' ) {

                    $this->Body['File'][$j] = array(
                        'Filename'=> mb_decode_mimeheader($info[$i]['disposition-filename']),
                        'FileContent' => base64_encode($GLOBALS["catchData"])
                    );
                    $j++;
                }
            }
        }

        return $this;
    }
}

function catchData($part) {
    // 檔案大於 ?? 或多次執行直到結束  因此在此只要將資料拼接即可
    $GLOBALS["catchData"] .= $part;
}

100

101

102

103

104

<?php

mb_internal_encoding('UTF-8');

class HoyoMailParser

{

function __construct($a)

{

define( 'FilePath', '/tmp' );

$info = array();

$section = array();

$header = array();

$j = 0;

$mail = mailparse_msg_create();

mailparse_msg_parse($mail, $a);

$struct = mailparse_msg_get_structure($mail);

//print_r($struct);

foreach($struct as $st) {

$section[] = mailparse_msg_get_part($mail, $st);

}

foreach( $section as $k=>$s ){

$info[] = mailparse_msg_get_part_data($s);

}

//print_r($info);

// 信件 header

$h = $info[0]['headers'];

foreach( $h as $k=>$v ){

//echo $v ."---\r\n";

if ( is_string($v) ) $header[$k] = mb_decode_mimeheader($v);

}

$this->Header = $header;

//print_r( $header );

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

// 接收 part data

$GLOBALS["catchData"] = '';

mailparse_msg_extract_part($section[$i], $a, "catchData");

$tempData = $GLOBALS["catchData"];

// [transfer-encoding] => 8bit

if ( $info[$i]['headers']['transfer-encoding'] =='8bit' ){

$tempData = mb_decode_mimeheader($tempData);

}

// 文字編碼轉換

if ( strtolower($info[$i]['charset']) !='utf-8' ){

$tempData = mb_convert_encoding( $tempData, "UTF-8", $info[$i]['charset'] );

}

// HTML

if ( preg_match('/text\/html/i', $info[$i]['headers']['content-type'] ) ){

$this->Body['HTML'] = $tempData;

}

// 純文字

if ( preg_match('/text\/plain/i', $info[$i]['headers']['content-type'] ) ){

$this->Body['Plain'] = $tempData;

}

// 檔案附件

if ( $info[$i]['headers']['x-attachment-id'] !='' ){

// 儲存檔案

$ta = explode('.', mb_decode_mimeheader($info[$i]['headers']['content-type']) );

$afs = trim( array_pop($ta), '"' );

file_put_contents( FilePath .'/'. $info[$i]['headers']['x-attachment-id'] .'.'. $afs , $tempData);

// 是否是內嵌圖片

if ( preg_match('/inline/i', $info[$i]['headers']['content-disposition']) ){

$this->Body['HTML'] = str_replace('cid:'.$info[$i]['headers']['x-attachment-id'], 'data:'.$info[$i]['content-type'].';base64,'. base64_encode($GLOBALS["catchData"]), $this->Body['HTML']);

$this->Body['File'][$j] = array(

'Filename'=> mb_decode_mimeheader($info[$i]['disposition-filename']),

'FileContent' => base64_encode($GLOBALS["catchData"])

);

$j++;

}

// 一般附件

if ( $info[$i]['content-disposition'] =='attachment' ) {

$this->Body['File'][$j] = array(

'Filename'=> mb_decode_mimeheader($info[$i]['disposition-filename']),

'FileContent' => base64_encode($GLOBALS["catchData"])

);

$j++;

}

return $this;

}

function catchData($part) {

// 檔案大於 ?? 或多次執行直到結束因此在此只要將資料拼接即可

$GLOBALS["catchData"] .= $part;

}

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Postfix 使用虛擬使用者 – 4. 信件解析，讓網頁看得懂

PHP 的信件解析函式庫

安裝、載入 Mailparse

Hoyo 自己寫的解析程式

Related Post

發佈留言

Postfix 使用虛擬使用者 – 4. 信件解析，讓網頁看得懂

PHP 的信件解析函式庫

安裝、載入 Mailparse

Hoyo 自己寫的解析程式

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