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#!/usr/bin/perl -T |
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use warnings; |
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use strict; |
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=head1 NAME |
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sql2rss.cgi - convert sql queries on file system to RSS feed |
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=head1 USAGE |
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Each file in current directory which ends in C<*.sql> will |
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be converted rss item. If you want to have specific order, you can |
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prefix filenames with numbers which will be striped when creating sheet |
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names. |
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|
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Comments in sql files (lines beginning with C<-->) will be placed |
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in first line in bold. |
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To specify database on which SQL query is executed |
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C<\c database> syntax is supported. |
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=head1 INSTALLATION |
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|
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If your server is configured to execute C<.cgi> files, you can |
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drop this script anywhere, but you can also add something like |
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ScriptAlias /xls-reports /srv/SQL2XLS/sql2xls.cgi |
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in Apache's virtual host configuration to get nice URLs |
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To configure default database, user, password and other settings create |
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C<config.pl> file in same directory in which C<sql2xls.cgi> is with something |
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like this: |
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$dsn = 'DBI:mysql:dbname='; |
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$database = 'database'; |
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$user = 'user'; |
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$passwd = 'password'; |
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$db_encoding = 'utf-8'; |
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$debug = 1; |
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=head1 SECURITY |
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There is none. Use apache auth modules if you need it. |
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=head1 AUTHOR |
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|
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Dobrica Pavlinusic, dpavlin@rot13.org, L<http://svn.rot13.org/index.cgi/SQL2RSS/> |
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=cut |
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|
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use XML::FeedPP; |
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use DBI; |
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use CGI::Carp qw(fatalsToBrowser); |
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use Data::Dump qw/dump/; |
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warn dump( \%ENV ); |
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our $dsn = 'DBI:Pg:dbname='; |
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our $database = 'template1'; |
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our $user = 'dpavlin'; |
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our $passwd = ''; |
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our $db_encoding; |
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our $debug = 1; |
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my $sql_dir = $ENV{SCRIPT_FILENAME} || '.'; |
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$sql_dir =~ s,/[^/]+$,,; |
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my $reports_path = $ENV{PATH_INFO} || ''; |
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$reports_path =~ s/\.\.//g; # some protection against path exploits |
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$reports_path ||= shift @ARGV; # for CLI invocation |
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sub require_config { |
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my $config_path = $1 if "$sql_dir/config.pl" =~ m/^(.+)$/; # untaint |
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warn "# using $config_path\n"; |
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require $config_path if -e $config_path; |
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} |
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require_config; |
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my @sql_files; |
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if ( -d "$sql_dir/$reports_path" ) { |
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$sql_dir .= '/' . $reports_path; |
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warn "SQL queries from $sql_dir\n"; |
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opendir(DIR, $sql_dir) || die "can't opendir $sql_dir: $!"; |
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@sql_files = sort grep { /\.sql$/i && -f "$sql_dir/$_" } readdir(DIR); |
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closedir DIR; |
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} elsif ( -f "$sql_dir/$reports_path" ) { |
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@sql_files = ( $reports_path ); |
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} |
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my $url = "http://$ENV{HTTP_HOST}/$ENV{REQUEST_URI}"; |
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print qq|Content-type: application/rss+xml\n\n|; |
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my $feed = XML::FeedPP::RSS->new(); |
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$feed->title( $reports_path ); |
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$feed->link( $url ); |
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#$feed->pubDate( "Thu, 23 Feb 2006 14:43:43 +0900" ); |
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our $dbh; |
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sub use_database { |
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$dbh->disconnect if $dbh; |
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my $database = shift || return; |
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print STDERR "## connect to $database\n" if $debug; |
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$dbh = DBI->connect($dsn . $database,$user,$passwd, { RaiseError => 1, AutoCommit => 0 }) || die $DBI::errstr; |
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if ( 0 && $db_encoding ) { # FIXME |
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if ( $dsn =~ m{Pg} ) { |
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$dbh->do( qq{ set client_encoding = '$db_encoding'; } ); |
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} elsif ( $dsn =~ m{mysql} ) { |
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$dbh->do( qq{ set names '$db_encoding'; } ); |
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} else { |
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warn "Don't know how to set encoding to $db_encoding for $dsn"; |
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} |
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} |
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} |
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use_database( $database ); |
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sub table_row { |
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my $type = shift @_; |
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my $html = join('', map { qq|<$type>$_</$type>| } @_ ); |
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return qq|<tr>$html</tr>|; |
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} |
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foreach my $sql_file (@sql_files) { |
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print STDERR "working on $sql_file\n" if ($debug); |
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open(SQL,"$sql_dir/$sql_file") || die "can't open sql file '$sql_dir/$sql_file': $!"; |
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my $comment = ''; |
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my $full_sql = ""; |
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while(<SQL>) { |
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chomp; |
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if (/^\\c\s+(\S+)/) { |
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use_database( $1 ); |
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} elsif (/^--(.+)/) { |
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$comment.=$1; |
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} else { |
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$full_sql.= ' ' . $_; |
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} |
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} |
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close(SQL); |
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$full_sql =~ s/\s\s+/ /gs; |
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$full_sql .= ';' unless $full_sql =~ m/;\s*/s; |
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print STDERR "sql: $full_sql\ncomment: $comment\n" if ($debug); |
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foreach my $sql ( split(/;/, $full_sql ) ) { |
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warn "SQL: $sql\n"; |
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my $sth = $dbh->prepare($sql); |
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$sth->execute(); |
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next unless $sth->{NAME} && $sth->rows > 0; # $sth->rows alone doesn't work for insert into with MySQL |
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my @types = eval { |
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map { $dbh->type_info($_) ? $dbh->type_info($_)->{TYPE_NAME} : '?' } @{ $sth->{TYPE} }; |
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}; |
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my $table = table_row( 'th' => @{ $sth->{NAME} } ); |
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while (my @row = $sth->fetchrow_array() ) { |
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$table .= table_row( 'td' => @row ); |
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} |
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my $item = $feed->add_item( "$url/$sql_file" ); |
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$item->title( $comment ); |
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# $item->pubDate( "2006-02-23T14:43:43+09:00" ); |
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$item->description( qq| |
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<pre style="font-size: 70%">$sql</pre> |
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<table border=1>$table</table> |
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| ); |
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|
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} |
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} |
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print $feed->to_string; |
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1; |
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