195 lines
7.1 KiB
PHP
195 lines
7.1 KiB
PHP
<?
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/*
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* NewsPortal: Functions for posting articles to a newsgroup
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*
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* Copyright (C) 2002-2004 Florian Amrhein
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* E-Mail: newsportal@florian-amrhein.de
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* Web: http://florian-amrhein.de
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* Encode lines with 8bit-characters to quote-printable
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*
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* $line: the to be encoded line
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*
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* the function returns a sting containing the quoted-printable encoded
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* $line
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*/
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function quoted_printable_encode($line) {
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global $www_charset;
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$qp_table=array(
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'=00', '=01', '=02', '=03', '=04', '=05',
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'=06', '=07', '=08', '=09', '=0A', '=0B',
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'=0C', '=0D', '=0E', '=0F', '=10', '=11',
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'=12', '=13', '=14', '=15', '=16', '=17',
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'=18', '=19', '=1A', '=1B', '=1C', '=1D',
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'=1E', '=1F', '_', '!', '"', '#',
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'$', '%', '&', "'", '(', ')',
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'*', '+', ',', '-', '.', '/',
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'0', '1', '2', '3', '4', '5',
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'6', '7', '8', '9', ':', ';',
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'<', '=3D', '>', '=3F', '@', 'A',
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'B', 'C', 'D', 'E', 'F', 'G',
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'H', 'I', 'J', 'K', 'L', 'M',
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'N', 'O', 'P', 'Q', 'R', 'S',
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'T', 'U', 'V', 'W', 'X', 'Y',
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'Z', '[', '\\', ']', '^', '=5F',
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'', 'a', 'b', 'c', 'd', 'e',
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'f', 'g', 'h', 'i', 'j', 'k',
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'l', 'm', 'n', 'o', 'p', 'q',
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'r', 's', 't', 'u', 'v', 'w',
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'x', 'y', 'z', '{', '|', '}',
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'~', '=7F', '=80', '=81', '=82', '=83',
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'=84', '=85', '=86', '=87', '=88', '=89',
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'=8A', '=8B', '=8C', '=8D', '=8E', '=8F',
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'=90', '=91', '=92', '=93', '=94', '=95',
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'=96', '=97', '=98', '=99', '=9A', '=9B',
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'=9C', '=9D', '=9E', '=9F', '=A0', '=A1',
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'=A2', '=A3', '=A4', '=A5', '=A6', '=A7',
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'=A8', '=A9', '=AA', '=AB', '=AC', '=AD',
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'=AE', '=AF', '=B0', '=B1', '=B2', '=B3',
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'=B4', '=B5', '=B6', '=B7', '=B8', '=B9',
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'=BA', '=BB', '=BC', '=BD', '=BE', '=BF',
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'=C0', '=C1', '=C2', '=C3', '=C4', '=C5',
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'=C6', '=C7', '=C8', '=C9', '=CA', '=CB',
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'=CC', '=CD', '=CE', '=CF', '=D0', '=D1',
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'=D2', '=D3', '=D4', '=D5', '=D6', '=D7',
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'=D8', '=D9', '=DA', '=DB', '=DC', '=DD',
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'=DE', '=DF', '=E0', '=E1', '=E2', '=E3',
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'=E4', '=E5', '=E6', '=E7', '=E8', '=E9',
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'=EA', '=EB', '=EC', '=ED', '=EE', '=EF',
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'=F0', '=F1', '=F2', '=F3', '=F4', '=F5',
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'=F6', '=F7', '=F8', '=F9', '=FA', '=FB',
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'=FC', '=FD', '=FE', '=FF');
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// are there "forbidden" characters in the string?
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for($i=0; $i<strlen($line) && ord($line[$i])<=127 ; $i++);
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if ($i<strlen($line)) { // yes, there are. So lets encode them!
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$from=$i;
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for($to=strlen($line)-1; ord($line[$to])<=127; $to--);
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// lets scan for the start and the end of the to be encoded _words_
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for(;$from>0 && $line[$from] != ' '; $from--);
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if($from>0) $from++;
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for(;$to<strlen($line) && $line[$to] != ' '; $to++);
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// split the string into the to be encoded middle and the rest
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$begin=substr($line,0,$from);
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$middle=substr($line,$from,$to-$from);
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$end=substr($line,$to);
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// ok, now lets encode $middle...
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$newmiddle="";
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for($i=0; $i<strlen($middle); $i++)
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$newmiddle .= $qp_table[ord($middle[$i])];
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// now we glue the parts together...
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$line=$begin.'=?'.$www_charset.'?Q?'.$newmiddle.'?='.$end;
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}
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return $line;
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}
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/*
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* generate a message-id for posting.
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* $identity: a string containing informations about the article, to
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* make a md5-hash out of it.
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*
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* returns: a complete message-id
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*/
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function generate_msgid($identity) {
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global $msgid_generate,$msgid_fqdn;
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switch($msgid_generate) {
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case "no":
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// no, we don't want to generate a message-id.
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return false;
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break;
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case "md5":
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return '<'.md5($identity).'$1@'.$msgid_fqdn.'>';
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break;
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default:
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return false;
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break;
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}
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}
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/*
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* Post an article to a newsgroup
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*
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* $subject: The Subject of the article
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* $from: The authors name and email of the article
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* $newsgroups: The groups to post to
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* $ref: The references of the article
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* $body: The article itself
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*/
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function message_post($subject,$from,$newsgroups,$ref,$body) {
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global $server,$port,$send_poster_host,$organization,$text_error;
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global $file_footer,$www_charset,$spooldir;
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global $msgid_generate,$msgid_fqdn;
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flush();
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$ns=nntp_open($server,$port);
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if ($ns != false) {
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fputs($ns,"POST\r\n");
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$weg=line_read($ns);
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fputs($ns,'Subject: '.quoted_printable_encode($subject)."\r\n");
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fputs($ns,'From: '.$from."\r\n");
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fputs($ns,'Newsgroups: '.$newsgroups."\r\n");
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fputs($ns,"Mime-Version: 1.0\r\n");
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fputs($ns,"Content-Type: text/plain; charset=".$www_charset."; format=flowed\r\n");
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fputs($ns,"Content-Transfer-Encoding: 8bit\r\n");
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fputs($ns,"User-Agent: NewsPortal/0.36 (http://florian-amrhein.de/newsportal)\r\n");
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if ($send_poster_host)
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@fputs($ns,'X-HTTP-Posting-Host: '.gethostbyaddr(getenv("REMOTE_ADDR"))."\r\n");
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if (($ref!=false) && (count($ref)>0)) {
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// strip references
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if(strlen(implode(" ",$ref))>900) {
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$ref_first=array_shift($ref);
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do {
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$ref=array_slice($ref,1);
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} while(strlen(implode(" ",$ref))>800);
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array_unshift($ref,$ref_first);
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}
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fputs($ns,'References: '.implode(" ",$ref)."\r\n");
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}
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if (isset($organization))
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fputs($ns,'Organization: '.quoted_printable_encode($organization)."\r\n");
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if ((isset($file_footer)) && ($file_footer!="")) {
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$footerfile=fopen($file_footer,"r");
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$body.="\n".fread($footerfile,filesize($file_footer));
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fclose($footerfile);
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}
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if($msgid=generate_msgid(
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$subject.",".$from.",".$newsgroups.",".$ref.",".$body))
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fputs($ns,'Message-ID: '.$msgid."\r\n");
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$body=str_replace("\n.\r","\n..\r",$body);
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$body=str_replace("\r",'',$body);
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$b=split("\n",$body);
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$body="";
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for ($i=0; $i<count($b); $i++) {
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if ((strpos(substr($b[$i],0,strpos($b[$i]," ")),">") != false) | (strcmp(substr($b[$i],0,1),">") == 0)) {
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$body .= textwrap(stripSlashes($b[$i]),78," \r\n")."\r\n";
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} else {
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$body .= textwrap(stripSlashes($b[$i]),74," \r\n")."\r\n";
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}
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}
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fputs($ns,"\r\n".$body."\r\n.\r\n");
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$message=line_read($ns);
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nntp_close($ns);
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} else {
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$message=$text_error["post_failed"];
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}
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// let thread.php ignore the cache for this group, so this new
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// article will be visible instantly
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$cachefile=$spooldir.'/'.$newsgroups.'-cache.txt';
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@unlink($cachefile);
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return $message;
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}
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?>
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