| 订阅 | 在线投稿
分享
 
 
 

用PHP实现POP3邮件的解码(三)

2008-12-23 08:12:51 编辑來源:互联网 国际版 评论
 
 
本文为【用PHP实现POP3邮件的解码(三)】的汉字拼音对照版显示拼音
  shixian MIME jiemadelei

  gaileishixianjiemadefangfashi decode($head=null,$body=null,$content_num=-1),weilechulishangdefang便bianyaoqiushurudeshilianggezifushuzuzaiwomendeshangpianzhongsuoyongdaodePOPleisuoshouqudedaodejiushilianggezheyangdeshuzuyigeshiyoujiantouneirongyigeshiyoujiandezhengwenneirongxianyupianfubuduiqizuoxiangxideshuomingqishixiansixianggenbenwenshangpianzhongsuojieshaodePOPleileisiqingshenkaoqizhongdezhushi

  gaileizhongyongdaoledaliangdezhengzebiaodashidecaozuoduicibushuxideduzheqingshenkaozhengzebiaodashideyouguanziliao

  class decode_mail

  {

  var $from_name;var $to_name;var $mail_time;var $from_mail;var $to_mail;

  var $reply_to;var $cc_to;var $subject;

  // jiemahoudeyoujiantoubufendexinxi

  var $body;

  // jiemahoudedaodezhengwenshujuweiyigeshuzu

  var $body_type;// zhengwenleixing

  var $tem_num=0;

  var $get_content_num=0;

  var $body_temp=array();

  var $body_code_type;

  var $boundary;

  // yishangshiyixiefangfazhongyongdaodeyixiequanjuxingdelinshibianliangyouyuPHPbunengzuodaolianghaodefengzhuangsuoyizhinengfangzaizhelidingyi

  var $err_str;// cuowuxinxi

  var $debug=0; // tiaoshibiaoji

  var $month_num=array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,

  "Aug"=>8,"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12); // bayingwenyuefenzhuanhuanchengshuzibiaoshideyuefen

  function decode($head=null,$body=null,$content_num=-1) // tiaoyongdezhufangfa$head yu $body shilianggeshuzu$content_num biaoshideshidangzhengwenyouduogebufendeshihouzhiquchuzhidingbufendeneirongyitigaoxiaolvmorenwei-1 ,biaoshijiemaquanbuneirongruguojiemachenggonggai fangfafanhui true

  {

  if (!$head and !$body)

  {

  $this->err_str="meiyouzhidingyoujiandetouyuneirong!";

  return false;

  }

  if (gettype($head)=="array")

  {

  $have_decode=true;

  $this->decode_head($head);

  }

  if (gettype($body)=="array")

  {

  $this->get_content_num=$content_num;

  $this->body_temp=$body;

  $have_decode=true;

  $this->decode_body();

  unset($this->body_temp);

  }

  if (!$have_decode)

  {

  $this->err_str="chuandideshenshubuduiyongfanew decode_mail(head,body) lianggeshenshudoushishuzu";

  return false;

  }

  }

  function decode_head($head) // youjiantouneirong dejiemaquchuyoujiantouzhongyouyiyideneirong

  {

  $i=0;

  $this->from_name=$this->to_name=$this->mail_time=$this->from_mail=$this->

  to_mail=$this->reply_to=$this->cc_to=$this->subject="";

  $this->body_type=$Sthis->boundary=$this->body_code_type="";

  while ($head[$i])

  {

  if (strpos($head[$i],"=?"))

  $head[$i]=$this->decode_mime($head[$i]); //ruguoyoubianmadeneirongzejinxingjiemajiemahanshushishangwensuojieshaodedecode_mime()

  $pos=strpos($head[$i],":");

  $summ=substr($head[$i],0,$pos);

  $content=substr($head[$i],$pos+1); //jiangyoujiantouxinxidebiaoshiyuneirongfenkai

  if ($this->debug) echo $summ.":----:".$content."<BR>";

  switch (strtoupper($summ))

  {

  case "FROM": // fajianrendizhijixingmingkenengmeiyouxingmingzhiyoudizhixinxi

  if ($left_tag_pos=strpos($content,"<"))

  {

  $mail_lenth=strrpos($content,">")-$left_tag_pos-1;

  $this->from_name=substr($content,0,$left_tag_pos);

  $this->from_mail=substr($content,$left_tag_pos+1,$mail_lenth);

  if (trim($this->from_name)=="") $this->from_name=$this->from_mail;

  else

  if (ereg("[\"|\']([^\'\"]+)[\'|\"]",$this->from_name,$reg))

  $this->from_name=$reg[1];

  }

  else

  {

  $this->from_name=$content;

  $this->from_mail=$content;

  //meiyoufajianrendeyoujiandizhi

  }

  break;

  case "TO": //shoujianrendizhijixingmingkeneng meiyouxingming

  if ($left_tag_pos=strpos($content,"<"))

  {

  $mail_lenth=strrpos($content,">")-$left_tag_pos-1;

  $this->to_name=substr($content,0,$left_tag_pos);

  $this->to_mail=substr($content,$left_tag_pos+1,$mail_lenth);

  if (trim($this->to_name)=="") $this->to_name=$this->to_mail;

  else

  if (ereg("[\"|\']([^\'\"]+)[\'|\"]",$this->to_name,$reg))

  $this->to_name=$reg[1];

  }

  else

  {

  $this->to_name=$content;

  $this->to_mail=$content;

  //meiyoufenkaishoujianrendeyoujiandizhi

  }

  break;

  case "DATE" : //fasongriqiweilechulifang便bianzhelifanhuideshiyige Unix shijianchuokeyiyong date("Y-m-d",$this->mail_time)laidedaoyibangeshideriqi

  $content=trim($content);

  $day=strtok($content," ");

  $day=substr($day,0,strlen($day)-1);

  $date=strtok(" ");

  $month=$this->month_num[strtok(" ")];

  $year=strtok(" ");

  $time=strtok(" ");

  $time=split(":",$time);

  $this->mail_time=mktime($time[0],$time[1],$time[2],$month,$date,$year);

  break;

  case "SUBJECT": //youjianzhuti

  $this->subject=$content;

  break;

  case "REPLY_TO":// huifudizhi(kenengmeiyou)

  if (ereg("<([^>]+)>",$content,$reg))

  $this->reply_to=$reg[1];

  else $this->reply_to=$content;

  break;

  case "CONTENT-TYPE": // zhenggeyoujiande Contentleixing eregi("([^;]*);",$content,$reg);

  $this->body_type=trim($reg[1]);

  if (eregi("multipart",$content)) // ruguoshimultipart leixingqudefengefu

  {

  while (!eregi('boundary=\"(.*)\"',$head[$i],$reg) and $head[$i])

  $i++;

  $this->boundary=$reg[1];

  }

  else //duiyuyibandezhengwenleixingzhijiequdeqibianmafangfa

  {

  while (!eregi("charset=[\"|\'](.*)[\'|\"]",$head[$i],$reg))

  $i++;

  $this->body_char_set=$reg[1];

  while (!eregi("Content-Transfer-Encoding:(.*)",$head[$i],$reg))

  $i++;

  $this->body_code_type=trim($reg[1]);

  }

  break;

  case "CC"://chaosongdao

  if (ereg("<([^>]+)>",$content,$reg))

  $this->cc_to=$reg[1];

  else

  $this->cc_to=$content;

  default:

  break;

  } // end switch

  $i++;

  } // end while

  if (trim($this->reply_to)=="") //ruguomeiyouzhidinghuifudizhizehuifudizhiweifasongrendizhi

  $this->reply_to=$this->from_mail;

  }// end function define

  function decode_body()//zhengwendejiemaqizhongyongdaolebushaoyoujiantoujiemasuodelaidexinxi

  {

  $i=0;

  if (!eregi("multipart",$this->body_type))//ruguobushifuheleixingkeyizhijiejiema

  {

  $tem_body=implode($this->body_temp,"\r\n");

  switch (strtolower($this->body_code_type))// body_code_type zhengwendebianmafangshiyouyoujiantouxinxizhongqude

  {case "base64":

  $tem_body=base64_decode($tem_body);

  break;

  case "quoted-printable":

  $tem_body=quoted_printable_decode($tem_body);

  break;

   }

  $this->tem_num=0;

  $this->body=array();

  $this->body[$this->tem_num][content_id]="";

  $this->body[$this->tem_num][type]=$this->body_type;

  switch (strtolower($this->body_type))

  {

  case "text/html":

  $this->body[$this->tem_num][name]="chaowenbenzhengwen";

  break;

  case "text/plain":

  $this->body[$this->tem_num][name]="wenbenzhengwen";

  break;

  default:

  $this->body[$this->tem_num][name]="weizhizhengwen";

  }

  $this->body[$this->tem_num][size]=strlen($tem_body);

  $this->body[$this->tem_num][content]=$tem_body;

  unset($tem_body);

  }

  else //ruguoshifuheleixingde

  {

  $this->body=array();

  $this->tem_num=0;

  $this->decode_mult($this->body_type,$this->boundary,0);//tiaoyongfuheleixingdejiemafangfa

  }

  }

  function decode_mult($type,$boundary,$begin_row)// gaifangfayongdiguidefangfashixianfuheleixingyoujianzhengwendejiemayoujianyuanwenjianquziyu body_temp shuzutiaoyongshigeichugaifuheleixingdeleixingfengefujizaibody_temp shuzuzhongdekaishizhizhen

  {

  $i=$begin_row;

  $lines=count($this->body_temp);

  while ($i<$lines) // zheshiyigebufendejieshubiaoshi

  {

  while (!eregi($boundary,$this->body_temp[$i]))//zhaodaoyigekaishibiaoshi

  $i++;

  if (eregi($boundary."--",$this->body_temp[$i]))

  {

  return $i;

  }

  while (!eregi("Content-Type:([^;]*);",$this->body_temp[$i],$reg ) and $this->body_temp[$i])

  $i++;

  $sub_type=trim($reg[1]); // qudezheyigebufende leixingshimilt or text ....

  if (eregi("multipart",$sub_type))// gaizibufenyoushiyouduogebufende

  {

  while (!eregi('boundary=\"([^\"]*)\"',$this->body_temp[$i],$reg) and $this->body_temp[$i])

  $i++;

  $sub_boundary=$reg[1];// zibufendefengefu

  $i++;

  $last_row=$this->decode_mult($sub_type,$sub_boundary,$i);

  $i=$last_row;

  }

  else

  {

  $comm="";

  while (trim($this->body_temp[$i])!="")

  {

  if (strpos($this->body_temp[$i],"=?"))

  $this->body_temp[$i]=$this->decode_mime($this->body_temp[$i]);

  if (eregi("Content-Transfer-Encoding:(.*)",$this->body_temp[$i],$reg))

  $code_type=strtolower(trim($reg[1])); // bianmafangshi

  $comm.=$this->body_temp[$i]."\r\n";

  $i++;

  } // comm shibianmadeshuomingbufen

  if (eregi('name=[\"]([^\"]*)[\"]',$comm,$reg))

  $name=$reg[1];

  if (eregi("Content-Disposition:(.*);",$comm,$reg))

  $disp=$reg[1];

  if (eregi("charset=[\"|\'](.*)[\'|\"]",$comm,$reg))

  $char_set=$reg[1];

  if (eregi("Content-ID:[ ]*\<(.*)\>",$comm,$reg)) // tupiandebiaoshifu

  $content_id=$reg[1];

  $this->body[$this->tem_num][type]=$sub_type;

  $this->body[$this->tem_num][content_id]=$content_id;

  $this->body[$this->tem_num][char_set]=$char_set;

  if ($name)

  $this->body[$this->tem_num][name]=$name;

  else

  switch (strtolower($sub_type))

  {

  case "text/html":

  $this->body[$this->tem_num][name]="chaowenbenzhengwen";

  break;

  case "text/plain":

  $this->body[$this->tem_num][name]="wenbenzhengwen";

  break;

  default:

  $this->body[$this->tem_num][name]="weizhizhengwen";

  }

  // xiayixingkaishiquhuizhengwen

  if ($this->get_content_num==-1 or $this->get_content_num==$this->tem_num) // panduanzhegebufenshifoushixuyaode-1 biaoshiquanbu

  {

  $content="";

  while (!ereg($boundary,$this->body_temp[$i]))

  {

  //$content[]=$this->body_temp[$i];

  $content.=$this->body_temp[$i]."\r\n";

  $i++;

  }

  //$content=implode("\r\n",$content);

  switch ($code_type)

  {

  case "base64":

  $content=base64_decode($content);

  break;

  case "quoted-printable":

  $content=str_replace("\n","\r\n",quoted_printable_decode($content));

  break;

  }

  $this->body[$this->tem_num][size]=strlen($content);

  $this->body[$this->tem_num][content]=$content;

  }

  else

  {

  while (!ereg($boundary,$this->body_temp[$i]))

  $i++;

  }

  $this->tem_num++;

  }

  // end else

  } // end while;

  } // end function define

  function decode_mime($string) {

  //decode_mime yizaishangwenzhonggeichuzhelilueguo

  }

  } // end class define

  zaizheliyaotebieshuomingyidiandeshihtmlzhengwenlisuoyongtupiandejiemafasonghtmlgeshidezhengwenshidouhuipengdaotupianruhechuansongdewentitupianzai html wendanglishiyige<img src="" >debiaoqianguanjianshizhegeyuanwenjianconghelaidehenduoyoujiandechulifangfashiyongyigejueduide url biaoshijiushizaiyoujiandehtmlzhengwenliyong<img src= http://www.ccidnet.com/image/22.gif >zhileidebiaoqianzheyangzaiyueduyoujianshiyoujianyueduqitongchangshiyongneiqiandeliulanqihuizidongcongwangshangxiazaitupiandanshiruguoyoujianshouxialaizhihouyu Internet delianjieduanletupianyejiubunengzhengchangxianshi

  suoyigenghaodefangfashibatupianfangzaiyoujianzhongyiqifasongchuquzai MIME bianmalimiaoshutupianyuzhengwendeguanxichuleshangmiansuotidaodemultipart/relatedMIMEtouxinxizhiwaihuanyongdaoleyige Content-ID: deshuxinglai使shitupianyu html zhengwenzhijianjianliguanxihtml wendangzhongdetupianzaibianmashiqiMIMEtouzhongjiaruyige Content-ID:122223443556dsdf@ntsever zhileideshuxing122223443556dsdf@ntsevershiyigeweiyidebiaoshizai html wendangli<img>biaoqianbeixiugaicheng<img src="cid: 122223443556dsdf@ntsever">zaijiemadeshihoushijishanghuanxuyaoba html zhengwenzhongdezhexie<img src>biaoqianjinxingxiugai使shizhizhixiangjiemahoudetupiandejutilujingdanshikaolvdaojutidejiemachengxuzhongduitupianhuiyoubutongdechulisuoyizaizhegejiemadeleizhongmeiyoudui hmtl zhengwenzhongde<img>biaoqianjinxingxiugaisuoyizaishiji使shiyongzhegeleishiduiyuyoutupiande html zhengwenhuanxuyaoyidingdechulizhengwenzhongdetupiankeyiyonglinshiwenjianlaibaocunyekeyiyongshujukulaibaocun

  xianzaiwomenyijingjieshaolePOP3 shouquyoujianbingjinxing MIME jiemadeyuanlixiamiangeichuyige使shiyongzhelianggeleideyiduanxiaochengxu

  <?

  include("pop3.inc.php");

  include("mime.inc.php");

  $host="pop.china.com";

  $user="boss_ch";

  $pass="mypassword";

  $rec=new pop3($host,110,2);

  $decoder=new decode_mail();

  if (!$rec->open()) die($rec->err_str);

  if (!$rec->login($user,$pass)) die($rec->err_str);

  if (!$rec->stat()) die($rec->err_str);

  echo "gongyou".$rec->messages."fengxinjiangong".$rec->size."zijiedaxiao<br>";

  if ($rec->messages>0)

  {

  if (!$rec->listmail()) die($rec->err_str);

  echo "yixiashixinjianneirong<br>";

  for ($i=1;$i<=count($rec->mail_list);$i++)

  {

  echo "xinjian".$rec->mail_list[$i][num].",daxiao".$rec->mail_list[$i][size]."<BR>";

  $rec->getmail($rec->mail_list[$i][num]);

  $decoder->decode($rec->head,$rec->body);

  echo "<h3>youjiantoudeneirong</h3><br>";

  echo $decoder->from_name."(".$decoder->from_mail.") yu".date("Y-m-d H:i:s",$decoder->mail_time)." fagei".$decoder->to_name."(".$decoder->to_mail.")";

  echo "\n<br>chaosong";

  if ($decoder->cc_to) echo $decoder->cc_to;else echo "wu";

  echo "\n<br>zhuti".$decoder->subject;

  echo "\n<br>huifudao:".$decoder->reply_to;

  echo "<h3>youjianzhengwen</h3><BR>";

  echo "zhengwenleixing".$decoder->body_type;

  echo "<br>zhengwengeneirong";

  for ($j=0;$j<count($decoder->body);$j++)

  {

  echo "\n<br>leixing".$decoder->body[$j][type];

  echo "\n<br>mingcheng".$decoder->body[$j][name];

  echo "\n<br>daxiao:".$decoder->body[$j][size];

  echo "\n<br>content_id:".$decoder->body[$j][content_id];

  echo "\n<br>zhengwenzifuji".$decoder->body[$j][char_set];

  echo "<pre>";

  echo "zhengwenneirong:".$decoder->body[$j][content];

  echo "</pre>";

  }

  $rec->dele($i);

  }

  }

  $rec->close();

  ?>

  ruyouxiangyaoqudewanzhengyuandaimadepengyouqingyubenrenlianxi: boss_ch@netease.com

  <quanwenwan>原文
 
 
实现 MIME 解码的类   该类实现解码的方法是 decode($head=null,$body=null,$content_num=-1),为了处理上的方便,要求输入的是两个字符数组,在我们的上篇中,所用到的POP类所收取得到的就是两个这样的数组,一个是邮件头内容,一个是邮件的正文内容。限于篇幅,不对其做详细的说明,其实现思想跟本文上篇中所介绍的POP类类似。请参考其中的注释。   该类中用到了大量的正则表达式的操作,对此不熟悉的读者,请参考正则表达式的有关资料。   class decode_mail   {   var $from_name;var $to_name;var $mail_time;var $from_mail;var $to_mail;   var $reply_to;var $cc_to;var $subject;   // 解码后的邮件头部分的信息:   var $body;   // 解码后得到的正文数据,为一个数组。   var $body_type; // 正文类型   var $tem_num=0;   var $get_content_num=0;   var $body_temp=array();   var $body_code_type;   var $boundary;   // 以上是一些方法中用到的一些全局性的临时变量,由于 PHP不能做到良好的封装,所以只能放在这里定义   var $err_str; // 错误信息   var $debug=0; // 调试标记   var $month_num=array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,   "Aug"=>8,"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12); // 把英文月份转换成数字表示的月份   function decode($head=null,$body=null,$content_num=-1) // 调用的主方法,$head 与 $body 是两个数组,$content_num 表示的是当正文有多个部分的时候,只取出指定部分的内容以提高效率,默认为 -1 ,表示解码全部内容,如果解码成功,该 方法返回 true   {    if (!$head and !$body)    {    $this->err_str="没有指定邮件的头与内容!!";    return false;    }   if (gettype($head)=="array")    {    $have_decode=true;    $this->decode_head($head);    }   if (gettype($body)=="array")    {    $this->get_content_num=$content_num;    $this->body_temp=$body;    $have_decode=true;    $this->decode_body();    unset($this->body_temp);    }   if (!$have_decode)    {    $this->err_str="传递的参数不对,用法:new decode_mail(head,body) 两个参数都是数组";    return false;    }   }   function decode_head($head) // 邮件头内容 的解码,取出邮件头中有意义的内容   {    $i=0;    $this->from_name=$this->to_name=$this->mail_time=$this->from_mail=$this->    to_mail=$this->reply_to=$this->cc_to=$this->subject="";    $this->body_type=$Sthis->boundary=$this->body_code_type="";    while ($head[$i])    {    if (strpos($head[$i],"=?"))    $head[$i]=$this->decode_mime($head[$i]);  //如果有编码的内容,则进行解码,解码函数是上文所介绍的 decode_mime()    $pos=strpos($head[$i],":");    $summ=substr($head[$i],0,$pos);    $content=substr($head[$i],$pos+1);  //将邮件头信息的标识与内容分开    if ($this->debug) echo $summ.":----:".$content."<BR>";    switch (strtoupper($summ))    {    case "FROM": // 发件人地址及姓名(可能没有姓名,只有地址信息)    if ($left_tag_pos=strpos($content,"<"))    {    $mail_lenth=strrpos($content,">")-$left_tag_pos-1;    $this->from_name=substr($content,0,$left_tag_pos);    $this->from_mail=substr($content,$left_tag_pos+1,$mail_lenth);    if (trim($this->from_name)=="") $this->from_name=$this->from_mail;    else    if (ereg("[\"|\']([^\'\"]+)[\'|\"]",$this->from_name,$reg))    $this->from_name=$reg[1];    }    else    {    $this->from_name=$content;    $this->from_mail=$content;    //没有发件人的邮件地址    }    break;    case "TO": //收件人地址及姓名(可能 没有姓名)    if ($left_tag_pos=strpos($content,"<"))    {    $mail_lenth=strrpos($content,">")-$left_tag_pos-1;    $this->to_name=substr($content,0,$left_tag_pos);    $this->to_mail=substr($content,$left_tag_pos+1,$mail_lenth);    if (trim($this->to_name)=="") $this->to_name=$this->to_mail;    else    if (ereg("[\"|\']([^\'\"]+)[\'|\"]",$this->to_name,$reg))    $this->to_name=$reg[1];    }    else    {    $this->to_name=$content;    $this->to_mail=$content;    //没有分开收件人的邮件地址    }    break;    case "DATE" : //发送日期,为了处理方便,这里返回的是一个 Unix 时间戳,可以用 date("Y-m-d",$this->mail_time) 来得到一般格式的日期    $content=trim($content);    $day=strtok($content," ");    $day=substr($day,0,strlen($day)-1);    $date=strtok(" ");    $month=$this->month_num[strtok(" ")];    $year=strtok(" ");    $time=strtok(" ");    $time=split(":",$time);    $this->mail_time=mktime($time[0],$time[1],$time[2],$month,$date,$year);    break;    case "SUBJECT":  //邮件主题    $this->subject=$content;    break;    case "REPLY_TO": // 回复地址(可能没有)    if (ereg("<([^>]+)>",$content,$reg))    $this->reply_to=$reg[1];    else $this->reply_to=$content;    break;    case "CONTENT-TYPE": // 整个邮件的 Content类型, eregi("([^;]*);",$content,$reg);    $this->body_type=trim($reg[1]);    if (eregi("multipart",$content)) // 如果是 multipart 类型,取得 分隔符    {    while (!eregi('boundary=\"(.*)\"',$head[$i],$reg) and $head[$i])    $i++;    $this->boundary=$reg[1];    }    else //对于一般的正文类型,直接取得其编码方法    {    while (!eregi("charset=[\"|\'](.*)[\'|\"]",$head[$i],$reg))    $i++;    $this->body_char_set=$reg[1];    while (!eregi("Content-Transfer-Encoding:(.*)",$head[$i],$reg))    $i++;    $this->body_code_type=trim($reg[1]);    }    break;    case "CC": //抄送到。。    if (ereg("<([^>]+)>",$content,$reg))    $this->cc_to=$reg[1];    else    $this->cc_to=$content;    default:    break;    } // end switch       $i++;    } // end while       if (trim($this->reply_to)=="")  //如果没有指定回复地址,则回复地址为发送人地址    $this->reply_to=$this->from_mail;   }// end function define   function decode_body() //正文的解码,其中用到了不少邮件头解码所得来的信息   {   $i=0;   if (!eregi("multipart",$this->body_type)) // 如果不是复合类型,可以直接解码    {    $tem_body=implode($this->body_temp,"\r\n");    switch (strtolower($this->body_code_type)) // body_code_type ,正文的编码方式,由邮件头信息中取得    {case "base64":    $tem_body=base64_decode($tem_body);    break;    case "quoted-printable":    $tem_body=quoted_printable_decode($tem_body);    break;   }    $this->tem_num=0;    $this->body=array();    $this->body[$this->tem_num][content_id]="";    $this->body[$this->tem_num][type]=$this->body_type;    switch (strtolower($this->body_type))    {    case "text/html":    $this->body[$this->tem_num][name]="超文本正文";    break;    case "text/plain":    $this->body[$this->tem_num][name]="文本正文";    break;    default:    $this->body[$this->tem_num][name]="未知正文";    }       $this->body[$this->tem_num][size]=strlen($tem_body);    $this->body[$this->tem_num][content]=$tem_body;    unset($tem_body);    }    else // 如果是复合类型的    {    $this->body=array();    $this->tem_num=0;    $this->decode_mult($this->body_type,$this->boundary,0);  //调用复合类型的解码方法    }   }   function decode_mult($type,$boundary,$begin_row) // 该方法用递归的方法实现 复合类型邮件正文的解码,邮件源文件取自于 body_temp 数组,调用时给出该复合类型的类型、分隔符及 在 body_temp 数组中的开始指针   {   $i=$begin_row;   $lines=count($this->body_temp);   while ($i<$lines) // 这是一个部分的结束标识;    {    while (!eregi($boundary,$this->body_temp[$i]))//找到一个开始标识    $i++;    if (eregi($boundary."--",$this->body_temp[$i]))    {    return $i;    }    while (!eregi("Content-Type:([^;]*);",$this->body_temp[$i],$reg ) and $this->body_temp[$i])    $i++;    $sub_type=trim($reg[1]); // 取得这一个部分的 类型是milt or text ....    if (eregi("multipart",$sub_type))// 该子部分又是有多个部分的;    {    while (!eregi('boundary=\"([^\"]*)\"',$this->body_temp[$i],$reg) and $this->body_temp[$i])    $i++;    $sub_boundary=$reg[1];// 子部分的分隔符;    $i++;    $last_row=$this->decode_mult($sub_type,$sub_boundary,$i);    $i=$last_row;    }    else    {    $comm="";    while (trim($this->body_temp[$i])!="")    {    if (strpos($this->body_temp[$i],"=?"))    $this->body_temp[$i]=$this->decode_mime($this->body_temp[$i]);    if (eregi("Content-Transfer-Encoding:(.*)",$this->body_temp[$i],$reg))    $code_type=strtolower(trim($reg[1])); // 编码方式    $comm.=$this->body_temp[$i]."\r\n";    $i++;    } // comm 是编码的说明部分    if (eregi('name=[\"]([^\"]*)[\"]',$comm,$reg))    $name=$reg[1];    if (eregi("Content-Disposition:(.*);",$comm,$reg))    $disp=$reg[1];    if (eregi("charset=[\"|\'](.*)[\'|\"]",$comm,$reg))    $char_set=$reg[1];    if (eregi("Content-ID:[ ]*\<(.*)\>",$comm,$reg)) // 图片的标识符。    $content_id=$reg[1];    $this->body[$this->tem_num][type]=$sub_type;    $this->body[$this->tem_num][content_id]=$content_id;    $this->body[$this->tem_num][char_set]=$char_set;    if ($name)    $this->body[$this->tem_num][name]=$name;    else    switch (strtolower($sub_type))    {    case "text/html":    $this->body[$this->tem_num][name]="超文本正文";    break;    case "text/plain":    $this->body[$this->tem_num][name]="文本正文";    break;    default:    $this->body[$this->tem_num][name]="未知正文";    }         // 下一行开始取回正文    if ($this->get_content_num==-1 or $this->get_content_num==$this->tem_num) // 判断这个部分是否是需要的。-1 表示全部    {    $content="";    while (!ereg($boundary,$this->body_temp[$i]))    {    //$content[]=$this->body_temp[$i];    $content.=$this->body_temp[$i]."\r\n";    $i++;    }    //$content=implode("\r\n",$content);    switch ($code_type)    {    case "base64":    $content=base64_decode($content);    break;    case "quoted-printable":    $content=str_replace("\n","\r\n",quoted_printable_decode($content));    break;    }    $this->body[$this->tem_num][size]=strlen($content);    $this->body[$this->tem_num][content]=$content;    }    else    {    while (!ereg($boundary,$this->body_temp[$i]))    $i++;    }    $this->tem_num++;    }    // end else   } // end while;   } // end function define      function decode_mime($string) {   //decode_mime 已在上文中给出,这里略过。   }   } // end class define   在这里要特别说明一点的是html正文里所用图片的解码。发送html格式的正文时,都会碰到图片如何传送的问题。图片在 html 文档里是一个<img src="" >的标签,关键是这个源文件从何来的。很多邮件的处理方法是用一个绝对的 url 标识,就是在邮件的html正文里用<img src= [url=http://www.ccidnet.com/image/22.gif]http://www.ccidnet.com/image/22.gif[/url] >之类的标签,这样,在阅读邮件时,邮件阅读器(通常是用内嵌的浏览器)会自动从网上下载图片,但是如果邮件收下来之后,与 Internet 的连接断了,图片也就不能正常显示。   所以更好的方法是把图片放在邮件中一起发送出去。在 MIME 编码里,描述图片与正文的关系,除了上面所提到的multipart/related MIME头信息之外,还用到了一个 Content-ID: 的属性来使图片与 html 正文之间建立关系。html 文档中的图片在编码时,其MIME头中加入一个 Content-ID:122223443556dsdf@ntsever 之类的属性,[url=mailto:122223443556dsdf@ntsever]122223443556dsdf@ntsever[/url]是一个唯一的标识,在 html 文档里,<img>标签被修改成<img src="cid: [url=mailto:122223443556dsdf@ntsever]122223443556dsdf@ntsever[/url]">,在解码的时候,实际上,还需要把 html 正文中的这些<img src>标签进行修改,使之指向解码后的图片的具体路径。但是考虑到具体的解码程序中对图片会有不同的处理,所以在这个解码的类中,没有对 hmtl 正文中的<img>标签进行修改。所以在实际使用这个类时,对于有图片的 html 正文,还需要一定的处理。正文中的图片,可以用临时文件来保存,也可以用数据库来保存。   现在我们已经介绍了POP3 收取邮件并进行 MIME 解码的原理。下面给出一个使用这两个类的一段小程序:   <?   include("pop3.inc.php");   include("mime.inc.php");   $host="pop.china.com";   $user="boss_ch";   $pass="mypassword";   $rec=new pop3($host,110,2);   $decoder=new decode_mail();   if (!$rec->open()) die($rec->err_str);   if (!$rec->login($user,$pass)) die($rec->err_str);   if (!$rec->stat()) die($rec->err_str);   echo "共有".$rec->messages."封信件,共".$rec->size."字节大小<br>";   if ($rec->messages>0)    {    if (!$rec->listmail()) die($rec->err_str);    echo "以下是信件内容:<br>";    for ($i=1;$i<=count($rec->mail_list);$i++)    {    echo "信件".$rec->mail_list[$i][num].",大小:".$rec->mail_list[$i][size]."<BR>";    $rec->getmail($rec->mail_list[$i][num]);    $decoder->decode($rec->head,$rec->body);    echo "<h3>邮件头的内容:</h3><br>";    echo $decoder->from_name."(".$decoder->from_mail.") 于".date("Y-m-d H:i:s",$decoder->mail_time)." 发给".$decoder->to_name."(".$decoder->to_mail.")";    echo "\n<br>抄送:";    if ($decoder->cc_to) echo $decoder->cc_to;else echo "无";    echo "\n<br>主题:".$decoder->subject;    echo "\n<br>回复到:".$decoder->reply_to;      echo "<h3>邮件正文 :</h3><BR>";    echo "正文类型:".$decoder->body_type;    echo "<br>正文各内容:";    for ($j=0;$j<count($decoder->body);$j++)    {    echo "\n<br>类型:".$decoder->body[$j][type];    echo "\n<br>名称:".$decoder->body[$j][name];    echo "\n<br>大小:".$decoder->body[$j][size];    echo "\n<br>content_id:".$decoder->body[$j][content_id];    echo "\n<br>正文字符集".$decoder->body[$j][char_set];    echo "<pre>";    echo "正文内容:".$decoder->body[$j][content];    echo "</pre>";    }   $rec->dele($i);    }   }   $rec->close();   ?>   如有想要取得完整源代码的朋友,请与本人联系: [url=mailto:boss_ch@netease.com]boss_ch@netease.com[/url] <全文完>
󰈣󰈤
日版宠物情人插曲《Winding Road》歌词

日版宠物情人2017的插曲,很带节奏感,日语的,女生唱的。 最后听见是在第8集的时候女主手割伤了,然后男主用嘴帮她吸了一下,插曲就出来了。 歌手:Def...

兄弟共妻,我成了他们夜里的美食

老钟家的两个儿子很特别,就是跟其他的人不太一样,魔一般的执着。兄弟俩都到了要结婚的年龄了,不管自家老爹怎么磨破嘴皮子,兄弟俩说不娶就不娶,老父母为兄弟两操碎了心...

网络安全治理:国家安全保障的主要方向是打击犯罪,而不是处置和惩罚受害者

来源:中国青年报 新的攻击方法不断涌现,黑客几乎永远占据网络攻击的上风,我们不可能通过技术手段杜绝网络攻击。国家安全保障的主要方向是打击犯罪,而不是处置和惩罚...

 
 
 
>>返回首页<<
 为你推荐
 
 
 
 转载本文
 UBB代码 HTML代码
复制到剪贴板...
 
 
 热帖排行
 
清纯得让人窒息(7)
清纯得让人窒息(6)
天泽海韵宣传片
赣州文庙
 
 
王朝网络微信公众号
微信扫码关注本站公众号wangchaonetcn
 
  免责声明:本文仅代表作者个人观点,与王朝网络无关。王朝网络登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述,其原创性以及文中陈述文字和内容未经本站证实,对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺,请读者仅作参考,并请自行核实相关内容。
 
 
©2005- 王朝网络 版权所有