382 lines
9.5 KiB
Perl
382 lines
9.5 KiB
Perl
#!/usr/bin/perl
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use strict;
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use warnings "all";
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use Fcntl;
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use BerkeleyDB;
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my $str = '';
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my $DIR = '/var/www/p.dafuq.ru/paste';
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my $TSDB = "$DIR/timestamps.db";
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my $DB = "$DIR/data.db";
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my $URL = 'http://p.dafuq.ru/';
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my $fsize = 262144;
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sub initdb();
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sub showindex($);
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sub eclient();
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sub dclient();
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sub getpaste($);
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my $dbh = initdb();
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showindex('') unless (defined($ENV{'REQUEST_METHOD'}));
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if ($ENV{'REQUEST_METHOD'} eq 'GET'){
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showindex('') unless (defined($ENV{'QUERY_STRING'}));
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if ($ENV{'QUERY_STRING'} eq 'e'){
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eclient();
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}
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if ($ENV{'QUERY_STRING'} eq 'd'){
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dclient();
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}
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getpaste($ENV{'QUERY_STRING'});
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# assume POST(?) request
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}elsif($ENV{'REQUEST_METHOD'} eq 'POST'){
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showindex('') unless (defined($ENV{'CONTENT_LENGTH'}));
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showindex('') if ($ENV{'CONTENT_LENGTH'} == '');
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showindex('') if ($ENV{'CONTENT_LENGTH'} > $fsize);
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showindex('') if ($ENV{'CONTENT_LENGTH'} eq '0');
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my $fname;
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for(my $i = 0;$i < 3; $i++){
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$fname .= ('a'..'z', 'A'..'Z')[int rand length(join('',('a'..'z', 'A'..'Z')))];
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}
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if ( $dbh->db_get($fname, undef) == 0 ){
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# looks like we already have value here
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# TODO: check timestamp!
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if ( $dbh->db_del($fname) != 0 ){
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# oops, error... how can it be here?
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$str = 'Status: 500 Application Error
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Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/plain
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Application error - unable to delete key in $DB
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';
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}
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}
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my $c = 0;
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my $delim = '';
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my $header = '';
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my $char = '';
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while(read(STDIN, $char, 1)){
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# looks like this case is obviously sic, but... :)
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if($c >= $ENV{'CONTENT_LENGTH'}){
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$str = 'Status: 400 Bad Request
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Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/plain
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';
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}
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last if ($char eq "\n");
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$delim .= $char;
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$c++;
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}
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read(DATA, $char, 1);
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while(read(STDIN, $char, 1)){
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if($c >= $ENV{'CONTENT_LENGTH'}){
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$str = 'Status: 400 Bad Request
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Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/plain
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';
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}
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last if ($char eq "\n");
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$header .= $char;
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$c++;
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}
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unless ($header =~ /Content-Disposition: form-data; name=.exs./) {
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$str = 'Status: 400 Bad Request
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Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/plain
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Form should be multipart and parameter/field should be exs.';
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syswrite STDOUT, $str;
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exit 0;
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}
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read(STDIN, $char, 2);
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my $datalen = $ENV{'CONTENT_LENGTH'} - (length($delim) + 2 + length($header) + 4 + length($delim) + 3);
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my $paste = '';
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read(STDIN, $paste, $datalen);
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# read one nl+cr
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read(STDIN, $char, 1);
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# read last delimiter
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my $checkstr;
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read(STDIN, $checkstr, (length($delim)));
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# compare first delimiter and last one
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chop($delim); chop($checkstr);
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unless ($delim eq $checkstr){
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$str .= 'Status: 400 Bad Request
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Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/plain
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';
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}
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$dbh->db_put($fname, $paste); # TODO: check status!
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# if defined useragent and it doesen't match text browsers/download tools
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# show fancy page
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if (defined($ENV{'HTTP_USER_AGENT'})){
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if (not($ENV{'HTTP_USER_AGENT'} =~ /^fetch libfetch/ or
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$ENV{'HTTP_USER_AGENT'} =~ /^curl\// or
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$ENV{'HTTP_USER_AGENT'} =~ /^Wget\// or
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$ENV{'HTTP_USER_AGENT'} =~ /^Axel / or
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$ENV{'HTTP_USER_AGENT'} =~ /^aria2\// or
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$ENV{'HTTP_USER_AGENT'} =~ /^Links \(/ or
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$ENV{'HTTP_USER_AGENT'} =~ /^Elinks( |\/)/ or
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$ENV{'HTTP_USER_AGENT'} =~ /^w3m\// or
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$ENV{'HTTP_USER_AGENT'} =~ /^Lynx( |\/)/ )){
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showindex("$URL$fname");
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}
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}
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$str = "Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/plain
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$URL$fname
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";
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}else{
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# unknown method or commandline call without correct environment
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showindex('');
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}
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syswrite STDOUT, $str;
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sub initdb(){
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my $dbh = undef;
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unless (-f "$TSDB"){
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$dbh = new BerkeleyDB::Hash(
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-Filename => $TSDB,
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-Flags => DB_CREATE
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)
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or die "Error opening $TSDB : $! $BerkeleyDB::Error\n";
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}else{
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$dbh = new BerkeleyDB::Hash(
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-Filename => $TSDB,
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)
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or die "Error opening $TSDB : $! $BerkeleyDB::Error\n";
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}
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unless (-f "$DB"){
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$dbh = new BerkeleyDB::Hash(
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-Filename => $DB,
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-Flags => DB_CREATE
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)
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or die "Error opening $DB : $! $BerkeleyDB::Error\n";
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}else{
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$dbh = new BerkeleyDB::Hash(
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-Filename => $DB,
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)
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or die "Error opening $DB : $! $BerkeleyDB::Error\n";
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}
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return $dbh;
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}
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sub showindex($){
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my $link = shift;
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my $str = 'Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/html; charset=UTF-8
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<!DOCTYPE html>
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<html lang="ru">
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<head>
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<style>
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body { background-color: #adc0fc; text-align: center; }
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textarea {
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background-image: url("http://img.dafuq.ru/bg_logo.png");
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background-repeat: no-repeat;
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background-position: center center;
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width: 90%;
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height: 70vh;
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}
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</style>
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<title>Slack paste.</title>
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</head>
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<body>
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<h3>Slack Paste</h3>
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<form method="post" action="/" enctype="multipart/form-data">
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<textarea name="exs" id="textbox" autofocus></textarea><br />
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<input type="submit" value="Post it!" style="font-size:115%;" />
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</form>';
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if (defined($link) and $link ne ''){
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$str .= "\n<p><table align=\"center\" frame=\"void\" border=\"0\"><td>$link</td></table></p>";
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}
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$str .= '
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<p style="font-size: small;">
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Console client can be found here: <a href="http://p.dafuq.ru/e">http://p.dafuq.ru/e</a> thanks <a href="http://sprunge.us">sprunge.us</a> for their client :)<br/>
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More minimalist console client can be found here: <a href="http://p.dafuq.ru/d">http://p.dafuq.ru/d</a><br/>
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<br/>
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2015
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</p>
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</body>
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</html>
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';
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syswrite STDOUT, $str;
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exit 0;
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}
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sub eclient(){
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$str = 'Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/plain
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Content-Disposition: attachment; filename="e";
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#!/bin/bash
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usage() {
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description | fmt -s >&2
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}
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description() {
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cat << HERE
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DESCRIPTION
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Upload data and fetch URL from the pastebin http://p.dafuq.ru/
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USAGE
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$0 filename.txt
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$0 text string
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$0 < filename.txt
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piped_data | $0
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NOTES
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--------------------------------------------------------------------------
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* INPUT METHODS *
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$0 can accept piped data, STDIN redirection [<filename.txt], text strings following the command as arguments, or filenames as arguments. Only one of these methods can be used at a time, so please see the note on precedence. Also, note that using a pipe or STDIN redirection will treat tabs as spaces, or disregard them entirely (if they appear at the beginning of a line). So I suggest using a filename as an argument if tabs are important either to the function or readability of the code.
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* PRECEDENCE *
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STDIN redirection has precedence, then piped input, then a filename as an argument, and finally text strings as an arguments.
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EXAMPLE:
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echo piped | "$0" arguments.txt < stdin_redirection.txt
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In this example, the contents of file_as_stdin_redirection.txt would be uploaded. Both the piped_text and the file_as_argument.txt are ignored. If there is piped input and arguments, the arguments will be ignored, and the piped input uploaded.
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* FILENAMES *
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If a filename is misspelled or doesn\'t have the necessary path description, it will NOT generate an error, but will instead treat it as a text string and upload it.
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--------------------------------------------------------------------------
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HERE
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exit
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}
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if [ -t 0 ]; then
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echo Running interactively, checking for arguments... >&2
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if [ "$*" ]; then
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echo Arguments present... >&2
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if [ -f "$*" ]; then
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echo Uploading the contents of "$*"... >&2
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cat "$*"
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else
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echo Uploading the text: \""$*"\"... >&2
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echo "$*"
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fi | curl -F "exs=<-" http://p.dafuq.ru/
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else
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echo No arguments found, printing USAGE and exiting. >&2
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usage
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fi
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else
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echo Using input from a pipe or STDIN redirection... >&2
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while read -r line ; do
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echo $line
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done | curl -F "exs=<-" http://p.dafuq.ru/
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fi
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';
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syswrite STDOUT, $str;
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exit 0;
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}
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sub dclient(){
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$str = 'Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-type: text/plain
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Content-Disposition: attachment; filename="d";
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#!/usr/bin/env bash
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if [[ "$1" == "--help" ]]; then
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echo "Usage: $0 < file"
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echo " echo foo | $0"
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elif [[ -f "$1" ]]; then
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curl -F "exs=<-" "http://p.dafuq.ru" <"$1"
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else
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curl -F "exs=<-" "http://p.dafuq.ru"
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fi
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exit 0
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';
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syswrite STDOUT, $str;
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exit 0;
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}
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sub getpaste($){
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my $id = shift;
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my $str = '';
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if ( $dbh->db_get($id, $str) == 0 ){
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$str = "Status: 200 OK
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Pragma: no-cache
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Cache-Control: no-cache
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Content-Language: en, ru
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Content-Type: text/plain; charset=UTF-8
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$str";
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}else{
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$str = "Status: 404 Not Found
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Content-type: text/plain
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Pragma: no-cache
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Cache-Control: no-cache
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No such paste.
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";
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}
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syswrite STDOUT, $str;
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exit 0;
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}
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__END__
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