php pop3接受电子邮件，附件破损，怎么回事

Question

用php接pop3的电子邮件，  附件rar数据总是破损的， txt则乱码，怎么解决。给位大哥给点意见，或 完整的例子， 或新的类， 或给个解决链接也可以。谢谢了

Answer 1

是解码问题.我去年做过一个php 收发邮件的.需要的话 email: qimingxin0101#163.com 把#改成@索取

Answer 2

解码类:
<?php
class mime_decode {
    var $content= array();
function mime_encode_headers($string) {
        if($string == "") return;
        if(!eregi("^([[:print:]]*)$",$string))
            $string = "=?ISO-8859-1?Q?".str_replace("+","_",str_replace("%","=",urlencode($string)))."?=";
        return $string;
    }    function decode_mime_string($string) {
        if(($pos = strpos($string,"=?")) === false) return $string;
        $string = preg_replace('|\?=\s=\?|', '?==?', $string);
        $preceding = substr($string, 0, $pos); // save any preceding text
        $search = substr($string, $pos + 2, 75); // the mime header spec says this is the longest a single encoded word can be
        $d1 = strpos($search, '?');
        if (!is_int($d1)) {
            return $string;
        }        
        $charset = substr($string, $pos + 2, $d1);
$this->content["charset"]=($this->content["charset"])?$this->content["charset"]:$charset;
        while(!($pos === false)) {
            $newresult .= substr($string,0,$pos);
            $string = substr($string,$pos+2,strlen($string));
            $intpos = strpos($string,"?");
            $charset = substr($string,0,$intpos);
            $enctype = strtolower(substr($string,$intpos+1,1));
            $string = substr($string,$intpos+3,strlen($string));
            $endpos = strpos($string,"?=");
            $mystring = substr($string,0,$endpos);
            $string = substr($string,$endpos+2,strlen($string));
            if($enctype == "q") {
                $mystring = str_replace("_"," ",$mystring);
                $mystring = $this->decode_qp($mystring);
            } else if ($enctype == "b")
                $mystring = base64_decode($mystring);
            $newresult .= $mystring;
            $pos = strpos($string,"=?");
        }
        return $newresult.$string;
    }    function decode_header($header) {
        $headers = explode("\r\n",$header);
//print_r($headers);
        $decodedheaders = array();
        for($i=0;$i<count($headers);$i++) {
            $thisheader = $headers[$i];
            if(strpos($thisheader,":") === false) {
                $decodedheaders[$lasthead] .= " $thisheader";
            } else {
                $dbpoint = strpos($thisheader,":");
                $headname = strtolower(substr($thisheader,0,$dbpoint));
                $headvalue = trim(substr($thisheader,$dbpoint+1));
                if($decodedheaders[$headname] != "") $decodedheaders[$headname] .= "; $headvalue";
                else $decodedheaders[$headname] = $headvalue;
                $lasthead = $headname;
            }
        }
        return $decodedheaders;
    }    function fetch_structure($email) { /*
$ARemail = array();
$separador = "\r\n\r\n";
$header = trim(substr($email,0,strpos($email,$separador)));
$bodypos = strlen($header)+strlen($separador);
$body = substr($email,$bodypos,strlen($email)-$bodypos);
$ARemail["header"] = $header;
$ARemail["body"] = $body;
return $ARemail;
*/
$ARemail = array();
$separador = "\r\n\r\n";
        $pos = strpos($email, $separador);
        if ($pos === false) {
            echo 'Could not split header and body';
            return $ARemail;
        }
        $header = substr($email, 0, $pos);
        $body   = substr($email, $pos+strlen($separador));
$ARemail["header"] = $header;
$ARemail["body"] = $body;
return $ARemail;    }    function get_names($strmail) {
        $ARfrom = array();
        $strmail = stripslashes(ereg_replace("\t","",ereg_replace("\n","",ereg_replace("\r","",$strmail))));
        if(trim($strmail) == "") return $ARfrom;        $armail = array();
        $counter = 0;  $inthechar = 0;
        $chartosplit = ",;"; $protectchar = "\""; $temp = "";
        $lt = "<"; $gt = ">";
        $closed = 1;        for($i=0;$i<strlen($strmail);$i++) {
            $thischar = $strmail[$i];
            if($thischar == $lt && $closed) $closed = 0;
            if($thischar == $gt && !$closed) $closed = 1;
            if($thischar == $protectchar) $inthechar = ($inthechar)?0:1;
            if(!(strpos($chartosplit,$thischar) === false) && !$inthechar && $closed) {
                $armail[] = $temp; $temp = "";
            } else
                $temp .= $thischar;
        }        if(trim($temp) != "")
            $armail[] = trim($temp);        for($i=0;$i<count($armail);$i++) {
            $thisPart = trim(eregi_replace("^\"(.*)\"$", "\\1", trim($armail[$i])));
            if($thisPart != "") {
                if (eregi("(.*)<(.*)>", $thisPart, $regs)) {
                    $email = trim($regs[2]);
                    $name = trim($regs[1]);
                } else {
                    if (eregi("([-a-z0-9_$+.]+@[-a-z0-9_.]+[-a-z0-9_]+)((.*))", $thisPart, $regs)) {
                        $email = $regs[1];
                        $name = $regs[2];
                    } else
                        $email = $thisPart;
                }
                $email = eregi_replace("^\<(.*)\>$", "\\1", $email);
                $name = eregi_replace("^\"(.*)\"$", "\\1", trim($name));
                $name = eregi_replace("^\((.*)\)$", "\\1", $name);
                if ($name == "") $name = $email;
                if ($email == "") $email = $name;
                $ARfrom[$i]["name"] = $this->decode_mime_string($name);
                $ARfrom[$i]["mail"] = $email;
                unset($name);unset($email);
            }
        }
        return $ARfrom;
    }

Answer 3

    function build_alternative_body($ctype,$body) {
        global $mime_show_html;
        $boundary = $this->get_boundary($ctype);
        $part = $this->split_parts($boundary,$body);
        $thispart = ($mime_show_html)?$part[1]:$part[0];
        $email = $this->fetch_structure($thispart);
        $header = $email["header"];
        $body = $email["body"];
        $headers = $this->decode_header($header);
        $body = $this->compile_body($body,$headers["content-transfer-encoding"]);
        return $body;
    }    function build_related_body($ctype,$body) {
        global $mime_show_html,$sid,$lid,$ix,$folder;
        $Rtype = trim(substr($ctype,strpos($ctype,"type=")+5,strlen($ctype)));        if(strpos($Rtype,";") != 0)
            $Rtype = substr($Rtype,0,strpos($Rtype,";"));
        if(substr($Rtype,0,1) == "\"" && substr($Rtype,-1) == "\"")
            $Rtype = substr($Rtype,1,strlen($Rtype)-2);        $boundary = $this->get_boundary($ctype);
        $part = $this->split_parts($boundary,$body);        for($i=0;$i<count($part);$i++) {
            $email = $this->fetch_structure($part[$i]);
            $header = $email["header"];
            $body = $email["body"];
            $headers = $this->decode_header($header);
            $ctype = $headers["content-type"];
            $cid = $headers["content-id"];
            $Actype = split(";",$headers["content-type"]);
            $types = split("/",$Actype[0]); $rctype = strtolower($Actype[0]);
            if($rctype == "multipart/alternative")
                $msgbody = $this->build_alternative_body($ctype,$body);
            elseif($rctype == "text/plain" && strpos($headers["content-disposition"],"name") === false) {
                $body = $this->compile_body($body,$headers["content-transfer-encoding"]);
                $msgbody = $this->build_text_body($body);
            } elseif($rctype == "text/html" && strpos($headers["content-disposition"],"name") === false) {
                $body = $this->compile_body($body,$headers["content-transfer-encoding"]);
                if(!$mime_show_html) $body = $this->build_text_body(strip_tags($body));
                $msgbody = $body;
            } else {
                $thisattach = $this->build_attach($header,$body,$boundary,$i);
                if($cid != "") {
                    if(substr($cid,0,1) == "<" && substr($cid,-1) == ">")
                        $cid = substr($cid,1,strlen($cid)-2);
                    $cid = "cid:$cid";
                    $thisfile = "download.php?sid=$sid&lid=$lid&folder=".urlencode($folder)."&ix=".$ix."&bound=".base64_encode($thisattach["boundary"])."&part=".$thisattach["part"]."&filename=".urlencode($thisattach["name"]);
                    $msgbody = str_replace($cid,$thisfile,$msgbody);
                }
            }
        }
        return $msgbody;
    }    function linesize($message="", $length=70) {
        $line = explode("\r\n",$message);
        unset($message);
        for ($i=0 ;$i < count($line); $i++) {
            $line_part = explode(" ",trim($line[$i]));
            unset($buf);
            for ($e = 0; $e<count($line_part); $e++) {
                $buf_o = $buf;
                if ($e == 0) $buf .= $line_part[$e];
                else $buf .= " ".$line_part[$e];
                if (strlen($buf) > $length and $buf_o != "") {
                    $message .= "$buf_o\r\n";
                    $buf = $line_part[$e];
                }
            }
            $message .= "$buf\r\n";
        }
        return($message);
    }
 function build_text_body($body) {
        return "\n<pre>".$this->make_link_clickable($this->linesize(htmlspecialchars($body),85))."</pre>\n";
    }    function decode_qp($text) {
        $text = quoted_printable_decode($text);
        /*
        $text = str_replace("\r","",$text);
        $text = ereg_replace("=\n", "", $text);
        $text = str_replace("\n","\r\n",$text);
        */
        $text = ereg_replace("=\r", "\r", $text);
        return $text;
    }    function make_link_clickable($text){
        $text = eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])",
            "<a class=\"autolink\" href=\"\\1://\\2\\3\" target=\"_new\">\\1://\\2\\3</a>", $text);
        $text = eregi_replace("([0-9a-z]([-_.]?[0-9a-z])*@[0-9a-z]([-.]?[0-9a-z])*\\.[a-z]{2,3})","<a class=\"autolink\"  href=\"newmsg.php?mailto=\\1&nameto=\\1\">\\1</a>", $text);
        return $text;
    }

Answer 4

    function process_message($header,$body) {
        global $mime_show_html;
        $mail_info = $this->get_mail_info($header);        $ctype = $mail_info["content-type"];
        $ctenc = $mail_info["content-transfer-encoding"];        if($ctype == "") $ctype = "text/plain";        $type = $ctype;        $ctype = split(";",$ctype);
        $types = split("/",$ctype[0]);
/*
        preg_match("/^charset=[\"|\'](.*)[\"|\']$/",trim(strtolower($ctype[1])),$bcharset);
$maincharset = $bcharset[1];
*/
        $maintype = strtolower($types[0]);
        $subtype = strtolower($types[1]);
/*
echo "<pre>";
echo $maintype."--".$subtype;
echo "</pre>";
*/
        switch($maintype) {
case "text":
$body = $this->compile_body($body,$ctenc);
switch($subtype) {
case "html":
$mime_show_html=1;
//  preg_match("/^content=\"text\/html;[\s]+charset=(\s+)\"$/",strtolower($body),$bcharset);
//  $maincharset = $bcharset[1];
if(!$mime_show_html)
$body = $this->build_text_body(strip_tags($body));
$msgbody = $body;
break;
default:
$mime_show_html=0;
$msgbody = $this->build_text_body($body);
break;
}
break;
case "multipart":
switch($subtype) {
case "mixed":
$boundary = $this->get_boundary($type);
$part = $this->split_parts($boundary,$body);
for($i=0;$i<count($part);$i++) {
$thispart = trim($part[$i]);
if($thispart != "") {
$email = $this->fetch_structure($thispart);
$header = $email["header"];
$body = $email["body"];
$headers = $this->decode_header($header);
$ctype = $headers["content-type"];

$Actype = split(";",$headers["content-type"]);
$types = split("/",$Actype[0]); $rctype = strtolower($Actype[0]);

if($rctype == "multipart/alternative")
$msgbody = $this->build_alternative_body($ctype,$body);
elseif($rctype == "text/plain" && strpos($headers["content-disposition"],"name") === false) {
$msgbody = $this->build_text_body($this->compile_body($body,$headers["content-transfer-encoding"]));
} elseif($rctype == "text/html" && strpos($headers["content-disposition"],"name") === false) {
$body = $this->compile_body($body,$headers["content-transfer-encoding"]);
if(!$mime_show_html)
$body = $this->build_text_body(strip_tags($body));
$msgbody = $body;
} elseif($rctype == "multipart/related" && strpos($headers["content-disposition"],"name") === false) {
$msgbody = $this->build_related_body($ctype,$body);
} else {
$thisattach = $this->build_attach($header,$body,$boundary,$i);
}
}
}
break;
case "alternative":
/*
foreach($ctype as $bound){
if(preg_match("/^boundary/",strtolower($bound))){
break;
}
}
$msgbody = $this->build_alternative_body($bound,$body);
*/
$msgbody = $this->build_alternative_body($ctype[1],$body);
break;
case "related":
$msgbody = $this->build_related_body($type,$body);
break;
default:
$thisattach = $this->build_attach($header,$body,"",0);
}
break;
default:
$thisattach = $this->build_attach($header,$body,"",0);
        }
$msgbody=($maincharset!="utf-8"&&$maincharset)?iconv($maincharset,"utf-8//IGNORE",$msgbody):$msgbody;
        return $msgbody;
    }    function build_attach($header,$body,$boundary,$part) {
        global $mail,$temporary_directory,$userfolder;        $headers = $this->decode_header($header);
        $cdisp = $headers["content-disposition"];
        $ctype = $headers["content-type"]; $ctype2 = explode(";",$ctype); $ctype2 = $ctype2[0];
        
        $Atype = split("/",$ctype);
        $Acdisp = split(";",$cdisp);        $tenc = $headers["content-transfer-encoding"];        if($temp) $dir_to_save = $userfolder; //"temporary_files/";        if($Atype[0] == "message") {
            $divpos = strpos($body,"\n\r");
            $attachheader = substr($body,0,$divpos);
            $attachheaders = $this->decode_header($attachheader);
            $filename = $this->decode_mime_string($attachheaders["subject"]);
            if($filename == "")
                $filename = uniqid("");
            $filename = substr(ereg_replace("[^A-Za-z0-9]","_",$filename),0,20).".eml";
        } else {
            $fname = $Acdisp[1];
            $filename = substr($fname,strpos($fname,"filename=")+9,strlen($fname));
            if($filename == "")
                $filename = substr($ctype,strpos($ctype,"name=")+5,strlen($ctype));
            if(substr($filename,0,1) == "\"" && substr($filename,-1) == "\"")
                $filename = substr($filename,1,strlen($filename)-2);
            $filename = $this->decode_mime_string($filename);
        }
        if($Atype[0] != "message")
            $body = $this->compile_body($body,$tenc);
        $indice = count($this->content["attachments"]);
        $this->content["attachments"][$indice]["name"] = $filename;
        $this->content["attachments"][$indice]["size"] = strlen($body);
        $this->content["attachments"][$indice]["temp"] = $temp;
        $this->content["attachments"][$indice]["content-type"] = $ctype2; //$Atype[0];
        $this->content["attachments"][$indice]["content-disposition"] = $Acdisp[0];
        $this->content["attachments"][$indice]["boundary"] = $boundary;
        $this->content["attachments"][$indice]["part"] = $part;
      //  $this->content["attachments"][$indice]["body"] = $body; //add 2007-11-09
        return $this->content["attachments"][$indice];
    }    function compile_body($body,$enctype) {
        $enctype = explode(" ",$enctype); $enctype = $enctype[0];
        if(strtolower($enctype) == "base64")
            $body = base64_decode($body);
        elseif(strtolower($enctype) == "quoted-printable")
            $body = $this->decode_qp($body);
        return $body;    }

function down_attach($boundary,$body,$part){
$getpart =$this->split_parts($boundary,$body);
$thispart = trim($getpart[$part]);
if($thispart != "") {
$email = $this->fetch_structure($thispart);
$header = $email["header"];
$body = $email["body"];
$this->download_attach($header,$body);
}
}

Answer 5

非常谢谢kemy88，很想给分，只是自己都是穷光蛋，真的很不好意思