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# Functions for editing /etc/mailcap
BEGIN { push(@INC, ".."); };
use WebminCore;
&init_config();
if ($module_info{'usermin'}) {
&switch_to_remote_user();
&create_user_config_dirs();
$mailcap_file = $userconfig{'mailcap'};
if ($mailcap_file !~ /^\//) {
$mailcap_file = "$remote_user_info[7]/$mailcap_file";
}
}
else {
$mailcap_file = $config{'mailcap'};
}
# list_mailcap()
# Returns a list of /etc/mailcap entries
sub list_mailcap
{
if (!scalar(@list_mailcap_cache)) {
@list_mailcap_cache = ( );
open(CAP, "<".$mailcap_file);
local $lnum = 0;
while(<CAP>) {
local ($slnum, $elnum) = ($lnum, $lnum);
s/\r|\n//g;
while (/^(.*)\\/) {
# Continuation line! Read the next one and append it
local $before = $1;
local $nxt = <CAP>;
$nxt =~ s/\r|\n//g;
$_ = $before.$nxt;
$elnum++;
}
if (/^(#*)\s*([a-z0-9\-]+)\/([a-z0-9\-\*]+);\s*([^;]*)(;(.*))?/) {
# Found a line
local @cmtlines = split(/\n/, $cmt);
local $cap = { 'type' => $2."/".$3,
'program' => $4,
'enabled' => !$1,
'cmt' => $cmt,
'args' => { },
'line' => $slnum-scalar(@cmtlines),
'eline' => $elnum,
'index' => scalar(@list_mailcap_cache),
};
# Parse ; separated args after the command
local $args = $6;
local @args = split(/\s*;\s*/, $args);
foreach my $arg (@args) {
if ($arg =~ /^\s*(\S+)\s*=\s*(.*)/) {
# A name-value arg
$cap->{'args'}->{$1} = $2;
}
elsif ($arg =~ /^\s*(\S+)\s*$/) {
$cap->{'args'}->{$1} = "";
}
}
push(@list_mailcap_cache, $cap);
$cmt = undef;
}
elsif (/^#+(.*)/) {
# Found a comment before a rule
if ($cmt) {
$cmt .= "\n".$1;
}
else {
$cmt = $1;
}
}
else {
$cmt = undef;
}
$lnum++;
}
close(CAP);
}
return @list_mailcap_cache;
}
# create_mailcap(&mailcap)
# Adds a mailcap entry
sub create_mailcap
{
local ($mailcap) = @_;
&list_mailcap(); # init cache
local $lref = &read_file_lines($mailcap_file);
local @lines = &mailcap_lines($mailcap);
$mailcap->{'line'} = scalar(@$lref);
$mailcap->{'eline'} = scalar(@$lref)+scalar(@lines)-1;
$mailcap->{'index'} = scalar(@list_mailcap_cache);
push(@$lref, @lines);
&flush_file_lines($mailcap_file);
push(@list_mailcap_cache, $mailcap);
}
# modify_mailcap(&mailcap)
# Updates one mailcap entry in the file
sub modify_mailcap
{
local ($mailcap) = @_;
local $lref = &read_file_lines($mailcap_file);
local @lines = &mailcap_lines($mailcap);
local $oldlen = $mailcap->{'eline'} - $mailcap->{'line'} + 1;
splice(@$lref, $mailcap->{'line'}, $oldlen, @lines);
&flush_file_lines($mailcap_file);
local $diff = scalar(@lines)-$oldlen;
foreach my $c (grep { $c ne $mailcap } @list_mailcap_cache) {
$c->{'line'} += $diff if ($c->{'line'} > $mailcap->{'line'});
$c->{'eline'} += $diff if ($c->{'eline'} > $mailcap->{'line'});
}
}
# delete_mailcap(&mailcap)
# Removes one mailcap entry from the file
sub delete_mailcap
{
local ($mailcap) = @_;
local $lref = &read_file_lines($mailcap_file);
local $len = $mailcap->{'eline'} - $mailcap->{'line'} + 1;
splice(@$lref, $mailcap->{'line'}, $len);
&flush_file_lines($mailcap_file);
@list_mailcap_cache = grep { $_ ne $mailcap } @list_mailcap_cache;
foreach my $c (@list_mailcap_cache) {
$c->{'line'} -= $len if ($c->{'line'} > $mailcap->{'line'});
$c->{'eline'} -= $len if ($c->{'eline'} > $mailcap->{'line'});
$c->{'index'}-- if ($c->{'index'} > $mailcap->{'index'});
}
}
# mailcap_lines(&mailcap)
# Returns an array of lines for a mailcap entry
sub mailcap_lines
{
local ($mailcap) = @_;
local @rv;
local $args;
foreach my $a (keys %{$mailcap->{'args'}}) {
local $v = $mailcap->{'args'}->{$a};
if ($v eq '') {
$args .= "; $a";
}
else {
$args .= "; $a=$v";
}
}
foreach my $l (split(/\n/, $mailcap->{'cmt'})) {
push(@rv, "#$l");
}
push(@rv, ($mailcap->{'enabled'} ? "" : "#").
"$mailcap->{'type'}; $mailcap->{'program'}".$args);
return @rv;
}
1;