c# - PHP Mail using HTTP POST Attachments -

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i developing php service windows phone based client application. invoking service through client(wp7) , want service send attachment sent part of email. hence using http post, set $to, $message, $subject , $from inside php, , use same logic attachments, after invoking service email on mailbox, corrupt attachment. attachment contains garbage value. here php code

 $filenames = $_post['attachment'];  $to = $_post['to'];  $subject = $_post['subject'];  $messagetxt = $_post['message'];  $headers = "from: " . $_post['from'];  $attachmentname = $_post['attachmentname'];  $rand_seed = md5(time());  $mime_boundary = "==multipart_boundary_x{$rand_seed}x";  $headers .= " \r\nmime-version: 1.0\r\n"    ."content-type: multipart/mixed;\r\n"    ." boundary=\"{$mime_boundary}\"\r\n";  $message .= "this multi-part message in mime format.\n\n"    ."--{$mime_boundary}\n\n"       . $messagetxt . "\n\n"; $message .= "--{$mime_boundary}\n";  $data = $filenames;    $message .= "content-type: {\"application/octet-stream\"};\n"     ." name=\"$attachmentname\"\n"     ."content-disposition: attachment;\n" . " filename=\"$attachmentname\"\n"     ."content-transfer-encoding: base64\n\n" . $data . "\n\n";    $message .= "--{$mime_boundary}\n";   $mail_sent = @mail( $to, $subject, $message, $headers );  echo $mail_sent ? "mail sent" : "mail failed";

on client side using following code ->

            var = "xyz@gmail.com";             var = "xyz@gmail.com";             var subj = "hey";             var msg = "oh yeah!";             memorystream ms = new memorystream();             streamwriter sw = new streamwriter(ms);             sw.write("hi there!");             sw.flush();             httpwebrequest request = (httpwebrequest)webrequest.create("http://rushabhgosar.com/api/email/v3/index.php");             request.method = "post";             request.contenttype = "application/x-www-form-urlencoded";             string postdata = string.format("to={0}&from={1}&subject={2}&message={3}&attachment={4}&attachmentname={5}", to, from, subj, msg, convert.tobase64string(ms.getbuffer()), "1.txt");             try             {                 request.begingetrequeststream                 (result =>                 {                     try                     {                         // sending request.                         using (var requeststream = request.endgetrequeststream(result))                         {                             using (streamwriter writer = new streamwriter(requeststream))                             {                                 writer.write(postdata);                                 writer.flush();                             }                         }                     }                     catch                         (exception e) {  }                      // getting response.                     request.begingetresponse(responseresult =>                     {                         try                         {                             var webresponse = request.endgetresponse(responseresult);                             using (var responsestream = webresponse.getresponsestream())                             {                                 using (var streamreader = new streamreader(responsestream))                                 {                                     string srresult = streamreader.readtoend();                                  }                             }                         }                         catch (exception e) {                          }                     }, null);                 }, null);             }             catch (exception e)             {              }         }

my attachment on mailbox(with garbage value is) -> (inside quotes) "

hi there!�������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������"

i have had @ phpmailer , few other places too. couldn't find anything. code used phpmailer, didn't work :( require_once './class.phpmailer.php';

function mailphpmail() {     $mailer = new phpmailer();     $mailer->addattachment($_post['attachment'], $_post['attachmentname']);     $encoding = 'base64';     $mailer->addstringattachment($_post['attachment'], $_post['attachmentname'], $encoding, 'image/png');      $to = $_post['to'];     $subject = $_post['subject'];     $messagetxt = $_post['message'];     $mailer->addaddress($to);     $mailer->setfrom($from);     $mailer->subject = $subject;     $mailer->msghtml($messagetxt);     $mailer->send(); }


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