PHP Classes

File: pgp_enc.class

Recommend this page to a friend!
  Classes of James Moore   pgp_enc.Class   pgp_enc.class   Download  
File: pgp_enc.class
Role: ???
Content type: text/plain
Description: The Class File
Class: pgp_enc.Class
Author: By
Last change:
Date: 23 years ago
Size: 11,853 bytes
 

Contents

Class file image Download
<?php /*************************************** ** Title.........: PGP Encrypted Mail Class ** Version.......: 1.0 ** Author........: James Moore <james@phpuk.org> ** Filename......: pgp_enc.class ** Last changed..: 17/04/2000 ** Notes.........: Based upon html_mime_mail.class ** by Richard Heyes <richard.heyes@heyes-computing.net> ** and Tobias Ratschiller <tobias@dnet.it> ** and Sascha Schumann <sascha@schumann.cx>. ** ***************************************/ class pgp_encrypted_mail{ var $headers; var $body; var $encbody; var $multipart; var $mime; var $html; var $html_text; var $html_images = array(); var $cids = array(); var $do_html; var $parts = array(); var $keyname = array(); var $built = FALSE; var $pathtopgp = "/usr/local/bin/"; var $pp; var $fp; var $pcmd; var $encryptcommand = "pgpe +batchmode"; var $signcommand = "pgps +batchmode "; var $pgppath = "/home/usr/www/.pgp"; var $pgppass; /*************************************** ** Constructor function. Sets the headers ** if supplied. ***************************************/ function pgp_encrypted_mail($headers = ''){ $this->headers = $headers; putenv("PGPPATH=$this->pgppath"); } /*************************************** ** Adds a html part to the mail. ** Also replaces image names with ** content-id's. ***************************************/ function add_html($html, $text){ $this->do_html = 1; $this->html = $html; $this->html_text = $text; if(is_array($this->html_images) AND count($this->html_images) > 0){ for($i=0; $i<count($this->html_images); $i++){ $this->html = ereg_replace($this->html_images[$i]['name'], 'cid:'.$this->html_images[$i]['cid'], $this->html); } } } /*************************************** ** Builds html part of email. ***************************************/ function build_html($orig_boundary){ $sec_boundary = '=_'.md5(uniqid(time())); $thr_boundary = '=_'.md5(uniqid(time())); if(!is_array($this->html_images)){ $this->multipart.= '--'.$orig_boundary."\n"; $this->multipart.= 'Content-Type: multipart/alternative; boundary = "'.$sec_boundary."\"\n\n\n"; $this->multipart.= '--'.$sec_boundary."\n"; $this->multipart.= 'Content-Type: text/plain'."\n"; $this->multipart.= 'Content-Transfer-Encoding: 7bit'."\n\n"; $this->multipart.= $this->html_text."\n\n"; $this->multipart.= '--'.$sec_boundary."\n"; $this->multipart.= 'Content-Type: text/html'."\n"; $this->multipart.= 'Content-Transfer-Encoding: 7bit'."\n\n"; $this->multipart.= $this->html."\n\n"; $this->multipart.= '--'.$sec_boundary."--\n\n"; }else{ $this->multipart.= '--'.$orig_boundary."\n"; $this->multipart.= 'Content-Type: multipart/related; boundary = "'.$sec_boundary."\"\n\n\n"; $this->multipart.= '--'.$sec_boundary."\n"; $this->multipart.= 'Content-Type: multipart/alternative; boundary = "'.$thr_boundary."\"\n\n\n"; $this->multipart.= '--'.$thr_boundary."\n"; $this->multipart.= 'Content-Type: text/plain'."\n"; $this->multipart.= 'Content-Transfer-Encoding: 7bit'."\n\n"; $this->multipart.= $this->html_text."\n\n"; $this->multipart.= '--'.$thr_boundary."\n"; $this->multipart.= 'Content-Type: text/html'."\n"; $this->multipart.= 'Content-Transfer-Encoding: 7bit'."\n\n"; $this->multipart.= $this->html."\n\n"; $this->multipart.= '--'.$thr_boundary."--\n\n"; for($i=0; $i<count($this->html_images); $i++){ $this->multipart.= '--'.$sec_boundary."\n"; $this->build_html_image($i); } $this->multipart.= "--".$sec_boundary."--\n\n"; } } /*************************************** ** Adds an image to the list of embedded ** images. ***************************************/ function add_html_image($file, $name = '', $c_type='application/octet-stream'){ $this->html_images[] = array( 'body' => $file, 'name' => $name, 'c_type' => $c_type, 'cid' => md5(uniqid(time())) ); } /*************************************** ** Adds a file to the list of attachments. ***************************************/ function add_attachment($file, $name = '', $c_type='application/octet-stream'){ $this->parts[] = array( 'body' => $file, 'name' => $name, 'c_type' => $c_type ); } /*************************************** ** Builds an embedded image part of an ** html mail. ***************************************/ function build_html_image($i){ $this->multipart.= 'Content-Type: '.$this->html_images[$i]['c_type']; if($this->html_images[$i]['name'] != '') $this->multipart .= '; name = "'.$this->html_images[$i]['name']."\"\n"; else $this->multipart .= "\n"; $this->multipart.= 'Content-ID: <'.$this->html_images[$i]['cid'].">\n"; $this->multipart.= 'Content-Transfer-Encoding: base64'."\n\n"; $this->multipart.= chunk_split(base64_encode($this->html_images[$i]['body']))."\n"; } /*************************************** ** Builds a single part of a multipart ** message. ***************************************/ function build_part($i){ $message_part = ''; $message_part.= 'Content-Type: '.$this->parts[$i]['c_type']; if($this->parts[$i]['name'] != '') $message_part .= '; name = "'.$this->parts[$i]['name']."\"\n"; else $message_part .= "\n"; // Determine content encoding. if($this->parts[$i]['c_type'] == 'text/plain'){ $message_part.= 'Content-Transfer-Encoding: 7bit'."\n\n"; $message_part.= $this->parts[$i]['body']."\n"; }else{ $message_part.= 'Content-Transfer-Encoding: base64'."\n"; $message_part.= 'Content-Disposition: attachment; filename = "'.$this->parts[$i]['name']."\"\n\n"; $message_part.= chunk_split(base64_encode($this->parts[$i]['body']))."\n"; } return $message_part; } /*************************************** ** Builds the multipart message from the ** list ($this->parts). ***************************************/ function build_message(){ $boundary = '=_'.md5(uniqid(time())); $this->multipart = ''; $this->multipart.= "MIME-Version: 1.0\n"; $this->multipart.= "Content-Type: multipart/mixed; boundary = \"".$boundary."\"\n\n"; $this->multipart.= "This is a MIME encoded message.\nCreated by html_mime_mail.class.\nSee http://www.heyes-computing.net/red.software/ for a copy.\n\n"; if(isset($this->do_html) AND $this->do_html == 1) $this->build_html($boundary); if(isset($this->body) AND $this->body != '') $this->parts[] = array('body' => $this->body, 'name' => '', 'c_type' => 'text/plain'); for($i=(count($this->parts)-1); $i>=0; $i--){ $this->multipart.= '--'.$boundary."\n".$this->build_part($i); } $this->mime = $this->multipart."--".$boundary."--\n"; $this->built = TRUE; } /*************************************** ** Adds a Public Key to encrypt with ** This MUST be on your public keyring ***************************************/ function add_key($keyname) { $this->keyname[] = array($keyname); } /*************************************** ** Encrypts and Attachment useing the ** keys in ($this->keyname) ***************************************/ function add_encrypted_attachment($file, $name = '', $c_type='application/pgp-encrypted') { if(sizeof($this->keyname) == 0) Echo "WARNING: No Keys Specified"; $this->pcmd = $this->pathtopgp.$this->encryptcommand; for($i=count($this->keyname)-1; $i>=0; $i--) { $this->pcmd.= " -r'". $this->keyname[$i][0] ."' "; } $attchid = md5(uniqid(time())); $this->pcmd.= " -o".$attchid; echo $this->pcmd; $pp = popen($this->pcmd, w); fwrite($pp, $file); pclose($pp); $fp = fopen($attchid, 'r'); $encattach = fread($fp, filesize($attchid)); fclose($fp); unlink($attchid); if(!stristr($name,".asc")) $name.= ".asc"; $this->add_attachment($encattach, $name, $c_type); } /*************************************** ** Encrypts the Message from the body ** ($this->mime) ***************************************/ function encrypt_body() { $boundary = md5(uniqid(time())); if(sizeof($this->keyname) == 0) Echo "WARNING: No Keys Specified"; $this->pcmd = $this->pathtopgp.$this->encryptcommand; for($i=count($this->keyname)-1; $i>=0; $i--) { $this->pcmd.= " -at -r'". $this->keyname[$i][0] ."' "; } $this->pcmd.= " -o".$boundary; echo $this->pcmd; $pp = popen($this->pcmd, w); fwrite($pp, $this->body); pclose($pp); $fp = fopen($boundary,r); $this->body = fread($fp, filesize($boundary)); fclose($fp); unlink($boundary); } /********************************************** ** Signs message and appends it to $this->body **********************************************/ function sign($userid,$pgppass) { $boundary = md5(uniqid(time())); putenv("PGPPASS=$pgppass"); $this->pcmd = $this->pathtopgp.$this->signcommand; $this->pcmd.= " -u'". $userid ."' "; $this->pcmd.= "-at -o".$boundary; $pp = popen($this->pcmd, w); fwrite($pp, $this->body); pclose($pp); $fp = fopen($boundary,r); $this->body = fread($fp, filesize($boundary)); fclose($fp); unlink($boundary); } /*************************************** ** Sends the mail. ***************************************/ function send($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = ''){ if($to_name != '') $to = '"'.$to_name.'" <'.$to_addr.'>'; else $to = $to_addr; if($from_name != '') $from = '"'.$from_name.'" <'.$from_addr.'>'; else $from = $from_addr; $this->headers.= 'From: '.$from."\n"; $this->headers.= $headers; $this->mime = $this->headers.$this->mime; mail($to, $subject, '', $this->mime); } } // End of Class