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package fs::remote::davfs;
use strict;
use diagnostics;
use common;
use fs::mount_options;
sub secrets_file() { "$::prefix/etc/davfs2/secrets" }
sub fstab_entry_to_credentials {
my ($part) = @_;
my ($options, $unknown) = fs::mount_options::unpack($part);
my %h = map { $_ => delete $options->{"$_="} } qw(username password);
foreach (qw(username password)) {
$h{$_} ||= 'nobody';
}
$h{mntpoint} = $part->{mntpoint} or return;
fs::mount_options::pack_($part, $options, $unknown), \%h;
}
sub save_credentials {
my ($credentials) = @_;
@$credentials or return;
output_with_perm(secrets_file(), 0600,
map { to_double_quoted($_->{mntpoint}, $_->{username}, $_->{password}, $_->{comment}) . "\n" } @$credentials);
}
sub mountpoint_credentials_save {
my ($mntpoint, $mount_opt) = @_;
my @entries = read_credentials_raw();
my $entry = find { $mntpoint eq $_->{mntpoint} } @entries;
die "mountpoint not found" if !$entry;
my %h;
foreach (@$mount_opt) {
my @var = split(/=/);
$h{$var[0]} = $var[1];
}
foreach my $key (qw(username password)) {
$entry->{$key} = $h{$key};
}
save_credentials(\@entries);
}
sub read_credentials_raw() {
from_double_quoted(cat_(secrets_file()));
}
sub read_credentials {
my ($mntpoint) = @_;
find { $mntpoint eq $_->{mntpoint} } read_credentials_raw();
}
# Comments are indicated by a '#' character and the rest of the line
# is ignored. Empty lines are ignored too.
#
# Each line consists of two or three items separated by spaces or tabs.
# If an item contains one of the characters space, tab, #, \ or ", this
# character must be escaped by a preceding \. Alternatively, the item
# may be enclosed in double quotes.
sub from_double_quoted {
my ($file) = @_;
my @l;
my @lines = split("\n",$file);
foreach (@lines) {
my ($mnt, $user, $pass, $comment);
if (/^\s*(#.*)?$/) {
$comment = $1;
} else {
if (/^(?:"((?:\\.|[^"])*)"|((?:\\.|[^"\s#])+))\s+(?:"((?:\\.|[^"])*)"|((?:\\.|[^"\s#])+))(?:\s+(?:"((?:\\.|[^"])*)"|((?:\\.|[^"\s#])+)))?(?:\s*|\s*(#.*))?$/) {
$mnt = "$1$2";
$mnt =~ s/\\(.)/$1/g;
$user = "$3$4";
$user =~ s/\\(.)/$1/g;
$pass = "$5$6";
$pass =~ s/\\(.)/$1/g;
$comment=$7;
} else {
die "bad entry $_";
}
}
push @l, { 'mntpoint' => $mnt, 'username' => $user, 'password' => $pass, 'comment' => $comment };
}
@l;
}
sub to_double_quoted {
my (@l) = @_;
join(' ', map {
s/(["\\])/\\$1/g;
/\s/ ? qq("$_") : $_;
} @l);
}
1;
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