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cron-lib.pl
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=head1 cron-lib.pl
Functions for listing, creating and managing Unix users' cron jobs.
foreign_require("cron", "cron-lib.pl");
@jobs = cron::list_cron_jobs();
$job = { 'user' => 'root',
'active' => 1,
'command' => 'ls -l >/dev/null',
'special' => 'hourly' };
cron::create_cron_job($job);
=cut
BEGIN { push(@INC, ".."); };
use WebminCore;
&init_config();
%access = &get_module_acl();
$env_support = $config{'vixie_cron'};
if ($module_info{'usermin'}) {
$single_user = $remote_user;
&switch_to_remote_user();
&create_user_config_dirs();
$range_cmd = "$user_module_config_directory/range.pl";
$hourly_only = 0;
}
else {
$range_cmd = "$module_config_directory/range.pl";
$hourly_only = $access{'hourly'} == 0 ? 0 :
$access{'hourly'} == 1 ? 1 :
$config{'hourly_only'};
}
$temp_delete_cmd = "$module_config_directory/tempdelete.pl";
$cron_temp_file = &transname();
use Time::Local;
=head2 list_cron_jobs
Returns a lists of structures of all cron jobs, each of which is a hash
reference with the following keys :
=item user - Unix user the job runs as.
=item command - The full command to be run.
=item active - Set to 0 if the job is commented out, 1 if active.
=item mins - Minute or comma-separated list of minutes the job will run, or * for all.
=item hours - Hour or comma-separated list of hours the job will run, or * for all.
=item days - Day or comma-separated list of days of the month the job will run, or * for all.
=item month - Month number or comma-separated list of months (started from 1) the job will run, or * for all.
=item weekday - Day of the week or comma-separated list of days (where 0 is sunday) the job will run, or * for all
=cut
sub list_cron_jobs
{
local (@rv, $lnum, $f);
if (scalar(@cron_jobs_cache)) {
return @cron_jobs_cache;
}
# read the master crontab file
if ($config{'system_crontab'}) {
$lnum = 0;
&open_readfile(TAB, $config{'system_crontab'});
while(<TAB>) {
# Comment line in Fedora 13
next if (/^#+\s+\*\s+\*\s+\*\s+\*\s+\*\s+(user-name\s+)?command\s+to\s+be\s+executed/);
if (/^(#+)?[\s\&]*(-)?\s*([0-9\-\*\/,]+)\s+([0-9\-\*\/,]+)\s+([0-9\-\*\/,]+)\s+(([0-9\-\*\/]+|jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec|,)+)\s+(([0-9\-\*\/]+|sun|mon|tue|wed|thu|fri|sat|,)+)\s+(\S+)\s+(.*)/i) {
# A normal h m s d w time
push(@rv, { 'file' => $config{'system_crontab'},
'line' => $lnum,
'type' => 1,
'nolog' => $2,
'active' => !$1,
'mins' => $3, 'hours' => $4,
'days' => $5, 'months' => $6,
'weekdays' => $8, 'user' => $10,
'command' => $11,
'index' => scalar(@rv) });
if ($rv[$#rv]->{'user'} =~ /^\//) {
# missing the user, as in redhat 7 !
$rv[$#rv]->{'command'} = $rv[$#rv]->{'user'}.
' '.$rv[$#rv]->{'command'};
$rv[$#rv]->{'user'} = 'root';
}
&fix_names($rv[$#rv]);
}
elsif (/^(#+)?\s*@([a-z]+)\s+(\S+)\s+(.*)/i) {
# An @ time
push(@rv, { 'file' => $config{'system_crontab'},
'line' => $lnum,
'type' => 1,
'active' => !$1,
'special' => $2,
'user' => $3,
'command' => $4,
'index' => scalar(@rv) });
}
$lnum++;
}
close(TAB);
}
# read package-specific cron files
opendir(DIR, &translate_filename($config{'cronfiles_dir'}));
while($f = readdir(DIR)) {
next if ($f =~ /^\./);
$lnum = 0;
&open_readfile(TAB, "$config{'cronfiles_dir'}/$f");
while(<TAB>) {
if (/^(#+)?[\s\&]*(-)?\s*([0-9\-\*\/,]+)\s+([0-9\-\*\/,]+)\s+([0-9\-\*\/,]+)\s+(([0-9\-\*\/]+|jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec|,)+)\s+(([0-9\-\*\/]+|sun|mon|tue|wed|thu|fri|sat|,)+)\s+(\S+)\s+(.*)/i) {
push(@rv, { 'file' => "$config{'cronfiles_dir'}/$f",
'line' => $lnum,
'type' => 2,
'active' => !$1,
'nolog' => $2,
'mins' => $3, 'hours' => $4,
'days' => $5, 'months' => $6,
'weekdays' => $8, 'user' => $10,
'command' => $11,
'index' => scalar(@rv) });
&fix_names($rv[$#rv]);
}
elsif (/^(#+)?\s*@([a-z]+)\s+(\S+)\s+(.*)/i) {
push(@rv, { 'file' => "$config{'cronfiles_dir'}/$f",
'line' => $lnum,
'type' => 2,
'active' => !$1,
'special' => $2,
'user' => $3,
'command' => $4,
'index' => scalar(@rv) });
}
$lnum++;
}
close(TAB);
}
closedir(DIR);
# Read a single user's crontab file
if ($config{'single_file'}) {
&open_readfile(TAB, $config{'single_file'});
$lnum = 0;
while(<TAB>) {
if (/^(#+)?[\s\&]*(-)?\s*([0-9\-\*\/,]+)\s+([0-9\-\*\/,]+)\s+([0-9\-\*\/,]+)\s+(([0-9\-\*\/]+|jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec|,)+)\s+(([0-9\-\*\/]+|sun|mon|tue|wed|thu|fri|sat|,)+)\s+(.*)/i) {
# A normal m h d m wd time
push(@rv, { 'file' => $config{'single_file'},
'line' => $lnum,
'type' => 3,
'active' => !$1, 'nolog' => $2,
'mins' => $3, 'hours' => $4,
'days' => $5, 'months' => $6,
'weekdays' => $8, 'user' => "NONE",
'command' => $10,
'index' => scalar(@rv) });
&fix_names($rv[$#rv]);
}
elsif (/^(#+)?\s*([a-zA-Z0-9\_]+)\s*=\s*'([^']*)'/ ||
/^(#+)?\s*([a-zA-Z0-9\_]+)\s*=\s*"([^']*)"/ ||
/^(#+)?\s*([a-zA-Z0-9\_]+)\s*=\s*(\S+)/) {
# An environment variable
push(@rv, { 'file' => $config{'single_file'},
'line' => $lnum,
'active' => !$1,
'name' => $2,
'value' => $3,
'user' => "NONE",
'command' => '',
'index' => scalar(@rv) });
}
$lnum++;
}
close(TAB);
}
# read per-user cron files
local $fcron = ($config{'cron_dir'} =~ /\/fcron$/);
local @users;
if ($single_user) {
@users = ( $single_user );
}
else {
opendir(DIR, &translate_filename($config{'cron_dir'}));
@users = grep { !/^\./ } readdir(DIR);
closedir(DIR);
}
foreach $f (@users) {
next if (!(@uinfo = getpwnam($f)));
$lnum = 0;
if ($single_user) {
&open_execute_command(TAB, $config{'cron_user_get_command'}, 1);
}
elsif ($fcron) {
&open_execute_command(TAB,
&user_sub($config{'cron_get_command'}, $f), 1);
}
else {
&open_readfile(TAB, "$config{'cron_dir'}/$f");
}
while(<TAB>) {
if (/^(#+)?[\s\&]*(-)?\s*([0-9\-\*\/,]+)\s+([0-9\-\*\/,]+)\s+([0-9\-\*\/,]+)\s+(([0-9\-\*\/]+|jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec|,)+)\s+(([0-9\-\*\/]+|sun|mon|tue|wed|thu|fri|sat|,)+)\s+(.*)/i) {
# A normal m h d m wd time
push(@rv, { 'file' => "$config{'cron_dir'}/$f",
'line' => $lnum,
'type' => 0,
'active' => !$1, 'nolog' => $2,
'mins' => $3, 'hours' => $4,
'days' => $5, 'months' => $6,
'weekdays' => $8, 'user' => $f,
'command' => $10,
'index' => scalar(@rv) });
$rv[$#rv]->{'file'} =~ s/\s+\|$//;
&fix_names($rv[$#rv]);
}
elsif (/^(#+)?\s*@([a-z]+)\s+(.*)/i) {
# An @ time
push(@rv, { 'file' => "$config{'cron_dir'}/$f",
'line' => $lnum,
'type' => 0,
'active' => !$1,
'special' => $2,
'user' => $f,
'command' => $3,
'index' => scalar(@rv) });
}
elsif (/^(#+)?\s*([a-zA-Z0-9\_]+)\s*=\s*'([^']*)'/ ||
/^(#+)?\s*([a-zA-Z0-9\_]+)\s*=\s*"([^']*)"/ ||
/^(#+)?\s*([a-zA-Z0-9\_]+)\s*=\s*(\S+)/) {
# An environment variable
push(@rv, { 'file' => "$config{'cron_dir'}/$f",
'line' => $lnum,
'active' => !$1,
'name' => $2,
'value' => $3,
'user' => $f,
'index' => scalar(@rv) });
}
$lnum++;
}
close(TAB);
}
closedir(DIR);
@cron_jobs_cache = @rv;
return @cron_jobs_cache;
}
=head2 cron_job_line(&job)
Internal function to generate a crontab format line for a cron job.
=cut
sub cron_job_line
{
local @c;
push(@c, "#") if (!$_[0]->{'active'});
if ($_[0]->{'name'}) {
push(@c, $_[0]->{'name'});
push(@c, "=");
push(@c, $_[0]->{'value'} =~ /'/ ? "\"$_[0]->{'value'}\"" :
$_[0]->{'value'} =~ /"/ ? "'$_[0]->{'value'}'" :
$_[0]->{'value'} !~ /^\S+$/ ? "\"$_[0]->{'value'}\""
: $_[0]->{'value'});
}
else {
if ($_[0]->{'special'}) {
push(@c, ($_[0]->{'nolog'} ? '-' : '').'@'.$_[0]->{'special'});
}
else {
push(@c, ($_[0]->{'nolog'} ? '-' : '').$_[0]->{'mins'},
$_[0]->{'hours'}, $_[0]->{'days'},
$_[0]->{'months'}, $_[0]->{'weekdays'});
}
push(@c, $_[0]->{'user'}) if ($_[0]->{'type'} != 0 &&
$_[0]->{'type'} != 3);
push(@c, $_[0]->{'command'});
}
return join(" ", @c);
}
=head2 copy_cron_temp(&job)
Copies a job's user's current cron configuration to the temp file. For internal
use only.
=cut
sub copy_cron_temp
{
local $fcron = ($config{'cron_dir'} =~ /\/fcron$/);
unlink($cron_temp_file);
if ($single_user) {
&execute_command($config{'cron_user_get_command'},
undef, $cron_temp_file, undef);
}
elsif ($fcron) {
&execute_command(&user_sub($config{'cron_get_command'},$_[0]->{'user'}),
undef, $cron_temp_file, undef);
}
else {
system("cp ".&translate_filename("$config{'cron_dir'}/$_[0]->{'user'}").
" $cron_temp_file 2>/dev/null");
}
}
=head2 create_cron_job(&job)
Add a Cron job to a user's file. The job parameter must be a hash reference
in the same format as returned by list_cron_jobs.
=cut
sub create_cron_job
{
&check_cron_config_or_error();
&list_cron_jobs(); # init cache
if ($config{'add_file'}) {
# Add to a specific file, typically something like /etc/cron.d/webmin
$_[0]->{'type'} = 1;
local $lref = &read_file_lines($config{'add_file'});
push(@$lref, &cron_job_line($_[0]));
&flush_file_lines($config{'add_file'});
}
elsif ($config{'single_file'} && !$config{'cron_dir'}) {
# Add to the single file
$_[0]->{'type'} = 3;
local $lref = &read_file_lines($config{'single_file'});
push(@$lref, &cron_job_line($_[0]));
&flush_file_lines($config{'single_file'});
}
else {
# Add to the specified user's crontab
©_cron_temp($_[0]);
local $lref = &read_file_lines($cron_temp_file);
$_[0]->{'line'} = scalar(@$lref);
push(@$lref, &cron_job_line($_[0]));
&flush_file_lines($cron_temp_file);
&set_ownership_permissions($_[0]->{'user'}, undef, undef,
$cron_temp_file);
©_crontab($_[0]->{'user'});
$_[0]->{'file'} = "$config{'cron_dir'}/$_[0]->{'user'}";
$_[0]->{'index'} = scalar(@cron_jobs_cache);
push(@cron_jobs_cache, $_[0]);
}
}
=head2 insert_cron_job(&job)
Add a Cron job at the top of the user's file. The job parameter must be a hash
reference in the same format as returned by list_cron_jobs.
=cut
sub insert_cron_job
{
&check_cron_config_or_error();
&list_cron_jobs(); # init cache
if ($config{'single_file'} && !$config{'cron_dir'}) {
# Insert into single file
$_[0]->{'type'} = 3;
local $lref = &read_file_lines($config{'single_file'});
splice(@$lref, 0, 0, &cron_job_line($_[0]));
&flush_file_lines($config{'single_file'});
}
else {
# Insert into the user's crontab
©_cron_temp($_[0]);
local $lref = &read_file_lines($cron_temp_file);
$_[0]->{'line'} = 0;
splice(@$lref, 0, 0, &cron_job_line($_[0]));
&flush_file_lines();
system("chown $_[0]->{'user'} $cron_temp_file");
©_crontab($_[0]->{'user'});
$_[0]->{'file'} = "$config{'cron_dir'}/$_[0]->{'user'}";
$_[0]->{'index'} = scalar(@cron_jobs_cache);
&renumber($_[0]->{'file'}, $_[0]->{'line'}, 1);
push(@cron_jobs_cache, $_[0]);
}
}
=head2 renumber(file, line, offset)
All jobs in this file whose line is at or after the given one will be
incremented by the offset. For internal use.
=cut
sub renumber
{
local $j;
foreach $j (@cron_jobs_cache) {
if ($j->{'line'} >= $_[1] &&
$j->{'file'} eq $_[0]) {
$j->{'line'} += $_[2];
}
}
}
=head2 renumber_index(index, offset)
Internal function to change the index of all cron jobs in the cache after
some index by a given offset. For internal use.
=cut
sub renumber_index
{
local $j;
foreach $j (@cron_jobs_cache) {
if ($j->{'index'} >= $_[0]) {
$j->{'index'} += $_[1];
}
}
}
=head2 change_cron_job(&job)
Updates the given cron job, which must be a hash ref returned by list_cron_jobs
and modified with a new active flag, command or schedule.
=cut
sub change_cron_job
{
if ($_[0]->{'type'} == 0) {
©_cron_temp($_[0]);
&replace_file_line($cron_temp_file, $_[0]->{'line'},
&cron_job_line($_[0])."\n");
©_crontab($_[0]->{'user'});
}
else {
&replace_file_line($_[0]->{'file'}, $_[0]->{'line'},
&cron_job_line($_[0])."\n");
}
}
=head2 delete_cron_job(&job)
Removes the cron job defined by the given hash ref, as returned by
list_cron_jobs.
=cut
sub delete_cron_job
{
if ($_[0]->{'type'} == 0) {
©_cron_temp($_[0]);
&replace_file_line($cron_temp_file, $_[0]->{'line'});
©_crontab($_[0]->{'user'});
}
else {
&replace_file_line($_[0]->{'file'}, $_[0]->{'line'});
}
@cron_jobs_cache = grep { $_ ne $_[0] } @cron_jobs_cache;
&renumber($_[0]->{'file'}, $_[0]->{'line'}, -1);
&renumber_index($_[0]->{'index'}, -1);
}
=head2 read_crontab(user)
Return an array containing the lines of the cron table for some user. For
internal use mainly.
=cut
sub read_crontab
{
local(@tab);
&open_readfile(TAB, "$config{cron_dir}/$_[0]");
@tab = <TAB>;
close(TAB);
if (@tab >= 3 && $tab[0] =~ /DO NOT EDIT/ &&
$tab[1] =~ /^\s*#/ && $tab[2] =~ /^\s*#/) {
@tab = @tab[3..$#tab];
}
return @tab;
}
=head2 copy_crontab(user)
Copy the cron temp file to that for this user. For internal use only.
=cut
sub copy_crontab
{
if (&is_readonly_mode()) {
# Do nothing
return undef;
}
local($pwd);
if (&read_file_contents($cron_temp_file) =~ /\S/) {
local $temp = &transname();
local $rv;
if ($config{'cron_edit_command'}) {
# fake being an editor
# XXX does not work in translated command mode!
local $notemp = &transname();
&open_tempfile(NO, ">$notemp");
&print_tempfile(NO, "No\n");
&print_tempfile(NO, "N\n");
&print_tempfile(NO, "no\n");
&close_tempfile(NO);
$ENV{"VISUAL"} = $ENV{"EDITOR"} =
"$module_root_directory/cron_editor.pl";
$ENV{"CRON_EDITOR_COPY"} = $cron_temp_file;
system("chown $_[0] $cron_temp_file");
local $oldpwd = &get_current_dir();
chdir("/");
if ($single_user) {
$rv = system($config{'cron_user_edit_command'}.
" >$temp 2>&1 <$notemp");
}
else {
$rv = system(
&user_sub($config{'cron_edit_command'},$_[0]).
" >$temp 2>&1 <$notemp");
}
unlink($notemp);
chdir($oldpwd);
}
else {
# use the cron copy command
if ($single_user) {
$rv = &execute_command(
$config{'cron_user_copy_command'},
$cron_temp_file, $temp, $temp);
}
else {
$rv = &execute_command(
&user_sub($config{'cron_copy_command'}, $_[0]),
$cron_temp_file, $temp, $temp);
}
}
local $out = &read_file_contents($temp);
unlink($temp);
if ($rv || $out =~ /error/i) {
local $cronin = &read_file_contents($cron_temp_file);
&error(&text('ecopy', "<pre>$out</pre>", "<pre>$cronin</pre>"));
}
}
else {
# No more cron jobs left, so just delete
if ($single_user) {
&execute_command($config{'cron_user_delete_command'});
}
else {
&execute_command(&user_sub(
$config{'cron_delete_command'}, $_[0]));
}
}
unlink($cron_temp_file);
}
=head2 parse_job(job-line)
Parse a crontab line into an array containing:
active, mins, hrs, days, mons, weekdays, command
=cut
sub parse_job
{
local($job, $active) = ($_[0], 1);
if ($job =~ /^#+\s*(.*)$/) {
$active = 0;
$job = $1;
}
$job =~ /^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(.*)$/;
return ($active, $1, $2, $3, $4, $5, $6);
}
=head2 user_sub(command, user)
Replace the string 'USER' in the command with the user name. For internal
use only.
=cut
sub user_sub
{
local($tmp);
$tmp = $_[0];
$tmp =~ s/USER/$_[1]/g;
return $tmp;
}
=head2 list_allowed
Returns a list of all Unix usernames who are allowed to use Cron.
=cut
sub list_allowed
{
local(@rv, $_);
&open_readfile(ALLOW, $config{cron_allow_file});
while(<ALLOW>) {
next if (/^\s*#/);
chop; push(@rv, $_) if (/\S/);
}
close(ALLOW);
return @rv;
}
=head2 list_denied
Return a list of all Unix usernames who are not allowed to use Cron.
=cut
sub list_denied
{
local(@rv, $_);
&open_readfile(DENY, $config{cron_deny_file});
while(<DENY>) {
next if (/^\s*#/);
chop; push(@rv, $_) if (/\S/);
}
close(DENY);
return @rv;
}
=head2 save_allowed(user, user, ...)
Save the list of allowed Unix usernames.
=cut
sub save_allowed
{
local($_);
&open_tempfile(ALLOW, ">$config{cron_allow_file}");
foreach (@_) {
&print_tempfile(ALLOW, $_,"\n");
}
&close_tempfile(ALLOW);
chmod(0444, $config{cron_allow_file});
}
=head2 save_denied(user, user, ...)
Save the list of denied Unix usernames.
=cut
sub save_denied
{
local($_);
&open_tempfile(DENY, "> $config{cron_deny_file}");
foreach (@_) {
&print_tempfile(DENY, $_,"\n");
}
&close_tempfile(DENY);
chmod(0444, $config{cron_deny_file});
}
=head2 read_envs(user)
Returns an array of "name value" strings containing the environment settings
from the crontab for some user
=cut
sub read_envs
{
local(@tab, @rv, $_);
@tab = &read_crontab($_[0]);
foreach (@tab) {
chop; s/#.*$//g;
if (/^\s*(\S+)\s*=\s*(.*)$/) { push(@rv, "$1 $2"); }
}
return @rv;
}
=head2 save_envs(user, [name, value]*)
Updates the cron file for some user with the given list of environment
variables. All others in the file are removed.
=cut
sub save_envs
{
local($i, @tab, $line);
@tab = &read_crontab($_[0]);
open(TAB, ">$cron_temp_file");
for($i=1; $i<@_; $i+=2) {
print TAB "$_[$i]=$_[$i+1]\n";
}
foreach (@tab) {
chop($line = $_); $line =~ s/#.*$//g;
if ($line !~ /^\s*(\S+)\s*=\s*(.*)$/) { print TAB $_; }
}
close(TAB);
©_crontab($_[0]);
}
=head2 expand_run_parts(directory)
Internal function to convert a directory like /etc/cron.hourly into a list
of scripts in that directory.
=cut
sub expand_run_parts
{
local $dir = $_[0];
$dir = "$config{'run_parts_dir'}/$dir"
if ($config{'run_parts_dir'} && $dir !~ /^\//);
opendir(DIR, &translate_filename($dir));
local @rv = readdir(DIR);
closedir(DIR);
@rv = grep { !/^\./ } @rv;
@rv = map { $dir."/".$_ } @rv;
return @rv;
}
=head2 is_run_parts(command)
Returns the dir if some cron job runs a list of commands in some directory,
like /etc/cron.hourly. Returns undef otherwise.
=cut
sub is_run_parts
{
local ($cmd) = @_;
local $rp = $config{'run_parts'};
$cmd =~ s/\s*#.*$//;
return $rp && $cmd =~ /$rp(.*)\s+(\-\-\S+\s+)*([a-z0-9\.\-\/_]+)(\s*\))?$/i ? $3 : undef;
}
=head2 can_edit_user(&access, user)
Returns 1 if the Webmin user whose permissions are defined by the access hash
ref can manage cron jobs for a given Unix user.
=cut
sub can_edit_user
{
local %umap;
map { $umap{$_}++; } split(/\s+/, $_[0]->{'users'})
if ($_[0]->{'mode'} == 1 || $_[0]->{'mode'} == 2);
if ($_[0]->{'mode'} == 1 && !$umap{$_[1]} ||
$_[0]->{'mode'} == 2 && $umap{$_[1]}) { return 0; }
elsif ($_[0]->{'mode'} == 3) {
return $remote_user eq $_[1];
}
elsif ($_[0]->{'mode'} == 4) {
local @u = getpwnam($_[1]);
return (!$_[0]->{'uidmin'} || $u[2] >= $_[0]->{'uidmin'}) &&
(!$_[0]->{'uidmax'} || $u[2] <= $_[0]->{'uidmax'});
}
elsif ($_[0]->{'mode'} == 5) {
local @u = getpwnam($_[1]);
return $u[3] == $_[0]->{'users'};
}
else {
return 1;
}
}
=head2 list_cron_specials()
Returns a list of the names of special cron times, prefixed by an @ in crontab
=cut
sub list_cron_specials
{
return ('hourly', 'daily', 'weekly', 'monthly', 'yearly', 'reboot');
}
=head2 get_times_input(&job, [nospecial], [width-in-cols], [message])
Returns HTML for selecting the schedule for a cron job, defined by the first
parameter which must be a hash ref returned by list_cron_jobs. Suitable for
use inside a ui_table_start/end
=cut
sub get_times_input
{
return &theme_get_times_input(@_) if (defined(&theme_get_times_input));
my ($job, $nospecial, $width, $msg) = @_;
$width ||= 2;
# Javascript to disable and enable fields
my $rv = <<EOF;
<script>
function enable_cron_fields(name, form, ena)
{
var els = form.elements[name];
els.disabled = !ena;
for(i=0; i<els.length; i++) {
els[i].disabled = !ena;
}
change_special_mode(form, 0);
}
function change_special_mode(form, special)
{
form.special_def[0].checked = special;
form.special_def[1].checked = !special;
}
</script>
EOF
if ($config{'vixie_cron'} && (!$nospecial || $job->{'special'})) {
# Allow selection of special @ times
my $sp = $job->{'special'} eq 'midnight' ? 'daily' :
$job->{'special'} eq 'annually' ? 'yearly' : $job->{'special'};
my $specialsel = &ui_select("special", $sp,
[ map { [ $_, $text{'edit_special_'.$_} ] }
&list_cron_specials() ],
1, 0, 0, 0, "onChange='change_special_mode(form, 1)'");
$rv .= &ui_table_row($msg,
&ui_radio("special_def", $job->{'special'} ? 1 : 0,
[ [ 1, $text{'edit_special1'}." ".$specialsel ],
[ 0, $text{'edit_special0'} ] ]),
$msg ? $width-1 : $width);
}
# Section for time selections
my $table = &ui_columns_start([ $text{'edit_mins'}, $text{'edit_hours'},
$text{'edit_days'}, $text{'edit_months'},
$text{'edit_weekdays'} ], 100);
my @mins = (0..59);
my @hours = (0..23);
my @days = (1..31);
my @months = map { $text{"month_$_"}."=".$_ } (1 .. 12);
my @weekdays = map { $text{"day_$_"}."=".$_ } (0 .. 6);
my %arrmap = ( 'mins' => \@mins,
'hours' => \@hours,
'days' => \@days,
'months' => \@months,
'weekdays' => \@weekdays );
my @cols;
foreach my $arr ("mins", "hours", "days", "months", "weekdays") {
# Find out which ones are being used
my %inuse;
my $min = ($arr =~ /days|months/ ? 1 : 0);
my @arrlist = @{$arrmap{$arr}};
my $max = $min+scalar(@arrlist)-1;
foreach my $w (split(/,/ , $job->{$arr})) {
if ($w eq "*") {
# all values
for($j=$min; $j<=$max; $j++) { $inuse{$j}++; }
}
elsif ($w =~ /^\*\/(\d+)$/) {
# only every Nth
for($j=$min; $j<=$max; $j+=$1) { $inuse{$j}++; }
}
elsif ($w =~ /^(\d+)-(\d+)\/(\d+)$/) {
# only every Nth of some range
for($j=$1; $j<=$2; $j+=$3) { $inuse{int($j)}++; }
}
elsif ($w =~ /^(\d+)-(\d+)$/) {
# all of some range
for($j=$1; $j<=$2; $j++) { $inuse{int($j)}++; }
}
else {
# One value
$inuse{int($w)}++;
}
}
if ($job->{$arr} eq "*") {
%inuse = ( );
}
# Output selection list
my $dis = $arr eq "mins" && $hourly_only;
my $col = &ui_radio(
"all_$arr", $job->{$arr} eq "*" ||
$job->{$arr} eq "" ? 1 : 0,
[ [ 1, $text{'edit_all'}."<br>",
"onClick='enable_cron_fields(\"$arr\", form, 0)'" ],
[ 0, $text{'edit_selected'}."<br>",
"onClick='enable_cron_fields(\"$arr\", form, 1)'" ] ],
$dis);
$col .= "<table> <tr>\n";
for(my $j=0; $j<@arrlist; $j+=($arr eq "mins" && $hourly_only ? 60 : 12)) {
my $jj = $j+($arr eq "mins" && $hourly_only ? 59 : 11);
if ($jj >= @arrlist) { $jj = @arrlist - 1; }
my @sec = @arrlist[$j .. $jj];
my @opts;
foreach my $v (@sec) {
if ($v =~ /^(.*)=(.*)$/) {
push(@opts, [ $2, $1 ]);
}
else {
push(@opts, [ $v, $v ]);
}
}
my $dis = $job->{$arr} eq "*" || $job->{$arr} eq "";
$col .= "<td valign=top>".
&ui_select($arr, [ keys %inuse ], \@opts,
@sec > 12 ? ($arr eq "mins" && $hourly_only ? 1 : 12)
: scalar(@sec),
$arr eq "mins" && $hourly_only ? 0 : 1,
0, $dis).
"</td>\n";
}
$col .= "</tr></table>\n";
push(@cols, $col);
}
$table .= &ui_columns_row(\@cols, [ "valign=top", "valign=top", "valign=top",
"valign=top", "valign=top" ]);
$table .= &ui_columns_end();
$table .= $text{'edit_ctrl'};
$rv .= &ui_table_row(undef, $table, $width);
return $rv;
}
=head2 show_times_input(&job, [nospecial])
Print HTML for inputs for selecting the schedule for a cron job, defined
by the first parameter which must be a hash ref returned by list_cron_jobs.
This must be used inside a <table>, as the HTML starts and ends with <tr>
tags.
=cut
sub show_times_input
{
return &theme_show_times_input(@_) if (defined(&theme_show_times_input));
local $job = $_[0];
if ($config{'vixie_cron'} && (!$_[1] || $_[0]->{'special'})) {
# Allow selection of special @ times
print "<tr $cb> <td colspan=6>\n";
printf "<input type=radio name=special_def value=1 %s> %s\n",
$job->{'special'} ? "checked" : "", $text{'edit_special1'};
print "<select name=special onChange='change_special_mode(form, 1)'>\n";
local $s;
local $sp = $job->{'special'} eq 'midnight' ? 'daily' :
$job->{'special'} eq 'annually' ? 'yearly' : $job->{'special'};
foreach $s ('hourly', 'daily', 'weekly', 'monthly', 'yearly', 'reboot'){
printf "<option value=%s %s>%s</option>\n",
$s, $sp eq $s ? "selected" : "", $text{'edit_special_'.$s};
}
print "</select>\n";
printf "<input type=radio name=special_def value=0 %s> %s\n",
$job->{'special'} ? "" : "checked", $text{'edit_special0'};
print "</td></tr>\n";
}
# Javascript to disable and enable fields
print <<EOF;
<script>
function enable_cron_fields(name, form, ena)
{
var els = form.elements[name];
els.disabled = !ena;
for(i=0; i<els.length; i++) {
els[i].disabled = !ena;
}
change_special_mode(form, 0);
}
function change_special_mode(form, special)
{
form.special_def[0].checked = special;
form.special_def[1].checked = !special;
}
</script>
EOF
print "<tr $tb>\n";
print "<td><b>$text{'edit_mins'}</b></td> <td><b>$text{'edit_hours'}</b></td> ",
"<td><b>$text{'edit_days'}</b></td> <td><b>$text{'edit_months'}</b></td>",
"<td><b>$text{'edit_weekdays'}</b></td> </tr> <tr $cb>\n";
local @mins = (0..59);
local @hours = (0..23);
local @days = (1..31);
local @months = map { $text{"month_$_"}."=".$_ } (1 .. 12);
local @weekdays = map { $text{"day_$_"}."=".$_ } (0 .. 6);
foreach $arr ("mins", "hours", "days", "months", "weekdays") {
# Find out which ones are being used
local %inuse;
local $min = ($arr =~ /days|months/ ? 1 : 0);
local $max = $min+scalar(@$arr)-1;
foreach $w (split(/,/ , $job->{$arr})) {
if ($w eq "*") {
# all values
for($j=$min; $j<=$max; $j++) { $inuse{$j}++; }
}
elsif ($w =~ /^\*\/(\d+)$/) {
# only every Nth
for($j=$min; $j<=$max; $j+=$1) { $inuse{$j}++; }
}
elsif ($w =~ /^(\d+)-(\d+)\/(\d+)$/) {
# only every Nth of some range
for($j=$1; $j<=$2; $j+=$3) { $inuse{int($j)}++; }
}
elsif ($w =~ /^(\d+)-(\d+)$/) {
# all of some range
for($j=$1; $j<=$2; $j++) { $inuse{int($j)}++; }
}
else {
# One value
$inuse{int($w)}++;
}
}
if ($job->{$arr} eq "*") { undef(%inuse); }
# Output selection list
print "<td valign=top>\n";
printf "<input type=radio name=all_$arr value=1 %s %s %s> %s<br>\n",