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Code Editor : django.pl

# script_django_desc()
sub script_django_desc
{
return "Django";
}

sub script_django_uses
{
return ( "python", "proxy" );
}

sub script_django_longdesc
{
return "Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design";
}

# script_django_versions()
sub script_django_versions
{
return ( "4.1.5", "4.0.8", "3.2.16", "2.2.28" );
}

sub script_django_can_upgrade
{
local ($sinfo, $newver) = @_;
if (&compare_versions($sinfo->{'version'}, "4.1.2") < 0) {
	# Cannot upgrade from fcgi mode to proxy mode
	return 0;
	}
return 1;
}

sub script_django_release
{
return 3;		# To fix DB login issue
}

sub script_django_gpl
{
return 1;
}

sub script_django_category
{
return "Development";
}

sub script_django_python_modules
{
local ($d, $ver, $opts) = @_;
local ($dbtype, $dbname) = split(/_/, $opts->{'db'}, 2);
return ( "setuptools", $dbtype eq "mysql" ? "MySQLdb" : "psycopg2" );
}

# script_django_depends(&domain, version)
# Check for ruby command, ruby gems, mod_proxy
sub script_django_depends
{
local ($d, $ver) = @_;
local @rv;

# Check for python, and required version
my $python = &get_python_path();
$python || push(@rv, "The python command is not installed");
local $out = &backquote_command("$python --version 2>&1 </dev/null");
if ($out =~ /Python\s+([0-9\.]+)/i) {
	my $pyver = $1;
	if ($ver >= 4.0 && &compare_versions($pyver, "3.8") < 0) {
		push(@rv, "Django 4.0 requires Python 3.8 or later");
		}
	elsif ($ver >= 2.2 && &compare_versions($pyver, "3.6") < 0) {
		push(@rv, "Django 3.1 requires Python 3.6 or later");
		}
	elsif (&compare_versions($pyver, "2.6") < 0) {
		push(@rv, "Django 1.11 requires Python 2.6 or later");
		}
	}
else {
	push(@rv, "Could not work out Python version : $out");
	}

return @rv;
}

# script_django_params(&domain, version, &upgrade-info)
# Returns HTML for table rows for options for installing PHP-NUKE
sub script_django_params
{
local ($d, $ver, $upgrade) = @_;
local $rv;
local $hdir = &public_html_dir($d, 1);
if ($upgrade) {
	# Options are fixed when upgrading
	local ($dbtype, $dbname) = split(/_/, $upgrade->{'opts'}->{'db'}, 2);
	$rv .= &ui_table_row("Django database", $dbname);
	$rv .= &ui_table_row("Initial project name",
		$upgrade->{'opts'}->{'project'});
	local $dir = $upgrade->{'opts'}->{'dir'};
	$dir =~ s/^$d->{'home'}\///;
	$rv .= &ui_table_row("Install directory", $dir);
	}
else {
	# Show editable install options
	local @dbs = &domain_databases($d, [ "mysql", "postgres" ]);
	$rv .= &ui_table_row("Django database",
		     &ui_database_select("db", undef, \@dbs, $d, "django"));
	$rv .= &ui_table_row("Initial project name",
		     &ui_textbox("project", "myproject", 30));
	# $rv .= &ui_table_row("Disable debug mode",
	# 	     &ui_yesno_radio("nodebug", 0));
	$rv .= &ui_table_row("Install sub-directory under <tt>$hdir</tt>",
			     &ui_opt_textbox("dir", undef, 30,
					     "At top level&nbsp;" .
					       &ui_help("Django works best when installed at the top level")));
	}
return $rv;
}

# script_django_parse(&domain, version, &in, &upgrade-info)
# Returns either a hash ref of parsed options, or an error string
sub script_django_parse
{
local ($d, $ver, $in, $upgrade) = @_;
if ($upgrade) {
	# Options are always the same
	return $upgrade->{'opts'};
	}
else {
	local $hdir = &public_html_dir($d, 0);
	$in->{'dir_def'} || $in->{'dir'} =~ /\S/ && $in->{'dir'} !~ /\.\./ ||
		return "Missing or invalid installation directory";
	local $dir = $in->{'dir_def'} ? $hdir : "$hdir/$in->{'dir'}";
	$in{'project'} =~ /^[a-zA-Z0-9]+$/ ||
		return "Project name can only contain letters and numbers";
	local ($newdb) = ($in->{'db'} =~ s/^\*//);
	return { 'db' => $in->{'db'},
		 'newdb' => $newdb,
		 'nodebug' => $in->{'nodebug'},
		 'dir' => $dir,
		 # 'dir' => $hdir,
		 'idir' => "$d->{'home'}/.local",
		 'path' => $in->{'dir_def'} ? "/" : "/$in->{'dir'}",
		 # 'path' => "/",
		 'project' => $in{'project'} };
	}
}

# script_django_check(&domain, version, &opts, &upgrade-info)
# Returns an error message if a required option is missing or invalid
sub script_django_check
{
local ($d, $ver, $opts, $upgrade) = @_;
$opts->{'dir'} =~ /^\// || return "Missing or invalid install directory";
$opts->{'db'} || return "Missing database";
$opts->{'project'} !~ /^(bin|lib)$/ ||
	return "Reserved name project name \`$opts->{'project'}\` cannot be used";
if (-r "$opts->{'idir'}/$opts->{'project'}") {
	return "Django appears to be already installed in the selected project directory";
	}
$opts->{'project'} ||
	return "Missing initial project name";
$opts->{'project'} =~ /^[a-zA-Z0-9]+$/ ||
	return "Project name can only contain letters and numbers";
return undef;
}

# script_django_files(&domain, version, &opts, &upgrade-info)
# Returns a list of files needed by Rails, each of which is a hash ref
# containing a name, filename and URL
sub script_django_files
{
local ($d, $ver, $opts, $upgrade) = @_;
local @files = (
	 { 'name' => "source",
	   'file' => "Django-$ver.tar.gz",
	   'url' => "https://www.djangoproject.com/download/$ver/tarball/" },
	 { 'name' => "flup",
	   'file' => "flup-1.0.3.tar.gz",
	   'url' => "https://files.pythonhosted.org/packages/bb/b5/26cc8f7baf0ddebd3e61a354a2bcc692cfe8005123c37ee3d8507c4c7511/flup-1.0.3.tar.gz" },
	);
return @files;
}

sub script_django_commands
{
local ($d, $ver, $opts) = @_;
return (&get_python_path(), "fuser");
}

# script_django_install(&domain, version, &opts, &files, &upgrade-info)
# Actually installs PhpWiki, and returns either 1 and an informational
# message, or 0 and an error
sub script_django_install
{
local ($d, $version, $opts, $files, $upgrade, $domuser, $dompass) = @_;
local ($out, $ex);

# Get database settings
if ($opts->{'newdb'} && !$upgrade) {
	local $err = &create_script_database($d, $opts->{'db'});
	return (0, "Database creation failed : $err") if ($err);
	}
local ($dbtype, $dbname) = split(/_/, $opts->{'db'}, 2);
local $dbuser = $dbtype eq "mysql" ? &mysql_user($d) : &postgres_user($d);
local $dbpass = $dbtype eq "mysql" ? &mysql_pass($d) : &postgres_pass($d, 1);
local $dbhost = &get_database_host($dbtype, $d);
local $domemail = $d->{'emailto_addr'};
$dbhost = undef if ($dbhost eq "localhost" || $dbhost eq "127.0.0.1");
if ($dbtype) {
	local $dberr = &check_script_db_connection($dbtype, $dbname,
						   $dbuser, $dbpass);
	return (0, "Database connection failed : $dberr") if ($dberr);
	}
my $python = &get_python_path();
my $pythonver = &get_python_version();
($pythonver) = $pythonver =~ /(\d+.\d+)/;
my $pythonlibs = "lib/python$pythonver";

# Create base dir
&run_as_domain_user($d, "mkdir ".quotemeta($opts->{'dir'}))
	if (!-d $opts->{'dir'});

# Create target dir
if (!-d $opts->{'idir'}) {
	$out = &run_as_domain_user($d, "mkdir -p ".quotemeta($opts->{'idir'}));
	-d $opts->{'idir'} ||
		return (0, "Failed to create directory : <tt>$out</tt>.");
	}

# Create python base dir
$ENV{'PYTHONPATH'} = "$opts->{'idir'}/$pythonlibs";
&run_as_domain_user($d, "mkdir -p ".quotemeta($ENV{'PYTHONPATH'}));

# Extract the source
local $temp = &transname();
local $err = &extract_script_archive($files->{'source'}, $temp, $d);
$err && return (0, "Failed to extract Django source : $err");

# Delete .pyc files from source that may be for an older python version
&run_as_domain_user($d,
	"find ".quotemeta($temp)." -name '*.pyc' | xargs rm -f");

# Stop running server if upgrading
if ($upgrade) {
	&script_django_stop_server($d, $opts);
	}

# Install to .local
local $icmd = "(cd ".quotemeta("$temp/Django-$ver")." && ".
      "$python setup.py install --prefix=".quotemeta($opts->{'idir'}).") 2>&1";
local $out = &run_as_domain_user($d, $icmd);
if ($?) {
	return (0, "Django source install failed : ".
		   "<pre>".&html_escape($out)."</pre>");
	}

# Extract and copy the flup source
local $err = &extract_script_archive($files->{'flup'}, $temp, $d);
$err && return (0, "Failed to extract flup source : $err");
local $out = &run_as_domain_user($d, 
	"cp -r ".quotemeta("$temp/flup-1.0.3/flup").
	" ".quotemeta("$ENV{'PYTHONPATH'}/site-packages"));
if ($?) {
	return (0, "flup source copy failed : ".
		   "<pre>".&html_escape($out)."</pre>");
	}

if (!$upgrade) {
	# Create the initial project
	my $django_admin_file = $ver >= 4 ? 'django-admin' : 'django-admin.py';
	local $icmd = "cd ".quotemeta($opts->{'idir'})." && ".
		      "./bin/$django_admin_file startproject ".
		      quotemeta($opts->{'project'})." 2>&1";
	local $out = &run_as_domain_user($d, $icmd);
	if ($?) {
		return (-1, "Project initialization install failed : ".
			   "<pre>".&html_escape($out)."</pre>");
		}

# Fixup settings.py to use the MySQL DB
	local $pdir = "$opts->{'idir'}/$opts->{'project'}";
	local $sfile = "$pdir/settings.py";
	if (!-r $sfile) {
		# New django moves this into a sub-directory
		$sfile = "$pdir/$opts->{'project'}/settings.py";
		}
	-r $sfile || return (-1, "Project settings file $sfile was not found");
	local $lref = &read_file_lines_as_domain_user($d, $sfile);
	my $i = 0;
	my $pdbtype = $dbtype eq "mysql" ? "mysql" : "postgresql_psycopg2";
	my $surl = &script_path_url($d, $opts);
	$surl =~ s/\/$//;
	my ($engine, $gotname, $gotuser, $gotpass, $gothost);
	# my $lnum = scalar(@$lref);
	foreach my $l (@$lref) {
	
		# Update Django variables
		if ($l =~ /INSTALLED_APPS\s*=\s*\(/ &&
		    $lref->[$i+1] !~ /django.contrib.admin/) {
			splice(@$lref, $i+1, 0,
			       "    'django.contrib.admin',");
			}

if ($ver >= 4) {
			if ($l =~ /ALLOWED_HOSTS\s*=\s*\[/) {
				$l = "ALLOWED_HOSTS = ['localhost', '127.0.0.1', '[::1]', '.$d->{'dom'}']";
				splice(@$lref, $i+1, 0,
				       "CSRF_TRUSTED_ORIGINS = ['$surl']");
				}
			}
		# Disable debug mode?
		if ($opts->{'nodebug'} && $l =~ /^DEBUG\s+=/) {
			$l = "# $l";
			}

if ($l =~ /'ENGINE':/) {
			$l = "        'ENGINE': 'django.db.backends.$pdbtype',";
			$engine = $i;
			}
		if ($l =~ /'NAME':/ && !$gotname) {
			$l = "        'NAME': '$dbname',";
			$gotname++;
			}
		if ($l =~ /'USER':/ && !$gotuser) {
			$l = "        'USER': '$dbuser',";
			$gotuser++;
			}
		if ($l =~ /'PASSWORD':/ && !$gotpass) {
			$l = "        'PASSWORD': '$dbpass',";
			$gotpass++;
			}
		if ($l =~ /'HOST':/ && !$gothost) {
			$l = "        'HOST': '$dbhost',";
			$gothost++;
			}
		# if ($i == $lnum) {
		# 	if ($opts->{'path'} && $opts->{'path'} ne '/') {
		# 		splice(@$lref, $i+1, 0,
		# 		   "\nLOGIN_URL = '$opts->{'path'}'");
		# 		}
		# 	}
		$i++;
		}
	if (!$gotname) {
		splice(@$lref, $engine, 0, "        'NAME': '$dbname',");
		}
	if (!$gotuser) {
		splice(@$lref, $engine, 0, "        'USER': '$dbuser',");
		}
	if (!$gotpass) {
		splice(@$lref, $engine, 0, "        'PASSWORD': '$dbpass',");
		}
	if (!$gothost) {
		splice(@$lref, $engine, 0, "        'HOST': '$dbhost',");
		}
	&flush_file_lines_as_domain_user($d, $sfile);

# Activate the admin site
	local $ufile = "$pdir/urls.py";
	if (!-r $ufile) {
		$ufile = "$pdir/$opts->{'project'}/urls.py";
		}
	local $lref = &read_file_lines_as_domain_user($d, $ufile);
	foreach my $l (@$lref) {
		if ($l =~ /^(\s*)#(.*django.contrib.admin.urls.*)/ ||
		    $l =~ /^(\s*)#(.*admin.site.root.*)/ ||
		    $l =~ /^(\s*)#(.*admin.site.urls.*)/) {
			# Un-comment /admin/ path
			$l = $1.$2;
			}
		elsif ($l =~ /^\s*#\s*(from django.contrib import admin)/ ||
		       $l =~ /^\s*#\s*(admin.autodiscover)/) {
			# Un-comment admin includes
			$l = $1;
			}
		}
	&flush_file_lines_as_domain_user($d, $ufile);

# Initialize the DB
	local $pwd = &get_current_dir();
	chdir($pdir);
	# Use new migrate command
	local $out = &run_as_domain_user($d,
			"$python manage.py migrate 2>&1");
	chdir($pwd);
	if ($?) {
		return (-1, "DB initialization install failed : ".
			   "<pre>".&html_escape($out)."</pre>");
		}

# Create Django admin user
	chdir($pdir);
	my $dompass_esc = $dompass;
	$dompass_esc =~ s/'/\\'/g;
	$dompass_esc =~ s/"/\\"/g;
	local $out = &run_as_domain_user($d, "echo \"from django.contrib.auth import get_user_model; User = get_user_model(); User.objects.create_superuser('$domuser', '$domemail', '$dompass_esc')\" | $python manage.py shell 2>&1");
	if ($?) {
		return (-1, "Initial Django user creation failed : ".
			   "<tt>".&html_escape($out)."</tt>");
		}
	}

# Django 1.9+ uses a server process
my $port;
if ($upgrade) {
	$port = $opts->{'port'};
	}
else {
	$port = &allocate_mongrel_port(undef, 1);
	$opts->{'port'} = $port;
	}
$opts->{'logfile'} ||= "$opts->{'idir'}/$opts->{'project'}/runserver.log";

# Create an init script
my $cmd = &get_django_start_cmd($d, $opts);
my $userd = $d->{'parent'} ? &get_domain($d->{'parent'}) : $d;
if (&foreign_installed("init") && $userd &&
    $userd->{'unix'} && !$upgrade) {
	my $killcmd = "kill -9 `fuser $opts->{'logfile'}`";
	&foreign_require("init");
	my $opts = { };
	if ($init::init_mode eq 'upstart' ||
	    $init::init_mode eq 'systemd') {
		# Init system will background it
		$opts->{'fork'} = 0;
		}
	else {
		$cmd .= "&";
		}
	&init::enable_at_boot(
		"django-$d->{'dom'}-$port",
		"Start Django server for $d->{'dom'}",
		&command_as_user($userd->{'user'}, 0, $cmd),
		&command_as_user($userd->{'user'}, 0, $killcmd),
		undef,
		$opts,
		);
	}

# Start the server process
&run_as_domain_user($d, $cmd, 1);

if (!$upgrade) {
	# Configure webserver to proxy to it
	&setup_mongrel_proxy($d, $opts->{'path'}, $port);
	}

local $url = &script_path_url($d, $opts);
local $adminurl = $url."admin/";
local $rp = $opts->{'dir'};
$rp =~ s/^$d->{'home'}\///;
return (1, "Initial Django installation complete. Go to <a target=_blank href='$adminurl'>$adminurl</a> to manage it. Django is a development environment, so it doesn't do anything by itself. Some applications may require you to set the <tt>PYTHONPATH</tt> environment variable to <tt>$ENV{'PYTHONPATH'}</tt>.", "Under $rp", $url, $domuser, $dompass);
}

# script_django_uninstall(&domain, version, &opts)
# Un-installs a Rails installation, by deleting the directory and database.
# Returns 1 on success and a message, or 0 on failure and an error
sub script_django_uninstall
{
local ($d, $version, $opts) = @_;

# Remove the contents of the target directory
local $derr = &delete_script_install_directory($d, $opts);
return (0, $derr) if ($derr);
&unlink_file_as_domain_user($d,
	("$opts->{'idir'}/$opts->{'project'}",
	 "$opts->{'idir'}/bin/sqlformat",
	 "$opts->{'idir'}/bin/django-admin"))

# Remove base Django tables from the database (twice, because of dependencies)
&cleanup_script_database($d, $opts->{'db'}, "(django|auth)_");
&cleanup_script_database($d, $opts->{'db'}, "(django|auth)_");

# Remove proxy path
&delete_mongrel_proxy($d, $opts->{'path'});

# Stop the server
&script_django_stop($d, { 'opts' => $opts });

# Take out the DB
if ($opts->{'newdb'}) {
	&delete_script_database($d, $opts->{'db'});
	}

return (1, "Django directory and tables deleted.");
}

sub script_django_db_conn_desc
{
my $db_conn_desc = 
    { 'settings.py' =>
        {
           'dbpass' =>
           {
               'func'        => 'php_quotemeta',
               'func_params' => 1,
               'replace'     => [ '[\'"]PASSWORD[\'"]\s*:.*?' =>
                                  '\'PASSWORD\': \'$$sdbpass\',' ],
           },
           'dbuser' =>
           {
               'replace'     => [ '[\'"]USER[\'"]\s*:.*?' =>
                                  '\'USER\': \'$$sdbuser\',' ],
           },
        }
    };
return $db_conn_desc;
}

# script_django_latest(version)
# Returns a URL and regular expression or callback func to get the version
sub script_django_latest
{
local ($ver) = @_;
return ( "http://www.djangoproject.com/download/",
	 $ver >= 4.1 ? "Django-([0-9\\.]+)\\.tar\\.gz" :
	 $ver >= 4.0 ? "Django-(4\\.0\\.[0-9\\.]+)\\.tar\\.gz" :
	 $ver >= 3.1 ? "Django-(3\\.[0-9\\.]+)\\.tar\\.gz" :
	 $ver >= 2.2 ? "Django-(2\\.[0-9\\.]+)\\.tar\\.gz" 
		     : "Django-(1\\.[0-9\\.]+)\\.tar\\.gz" );
}

sub script_django_site
{
return 'http://www.djangoproject.com/';
}

sub script_django_passmode
{
return 1;
}

# script_django_stop(&domain, &sinfo)
# Stop running django webserver, and delete init script
sub script_django_stop
{
local ($d, $sinfo) = @_;
my $opts = $sinfo->{'opts'};
return undef if (!$opts->{'port'});
&script_django_stop_server($d, $opts);
&foreign_require("init");
my $name =  "django-$d->{'dom'}-$opts->{'port'}";
if (defined(&init::delete_at_boot)) {
	&init::delete_at_boot($name)
	}
else {
	&init::disable_at_boot($name);
	}
}

# Start the django webserver
sub script_django_start_server
{
local ($d, $opts) = @_;
return undef if (!$opts->{'port'});
my $cmd = &get_django_start_cmd($d, $opts);
&run_as_domain_user($d, $cmd, 1);
}

# Return the PID if the node server is running
sub script_django_status_server
{
local ($d, $opts) = @_;
return ( ) if (!$opts->{'port'});    # Change to -1 once Virtualmin 5.1 is out
local @pids;
if ($opts->{'logfile'}) {
	&foreign_require("proc");
	@pids = &proc::find_file_processes($opts->{'logfile'});
	}
return @pids;
}

# script_django_stop_server(&domain, &opts)
# Stop running django webserver
sub script_django_stop_server
{
local ($d, $opts) = @_;
return undef if (!$opts->{'port'});
if ($opts->{'logfile'}) {
	&foreign_require("proc");
	local @pids = &proc::find_file_processes($opts->{'logfile'});
	foreach my $pid (@pids) {
		&run_as_domain_user($d, "kill -9 $pid");
		}
	}
}

sub get_django_start_cmd
{
my ($d, $opts) = @_;
my $python = &get_python_path();
my $pythonver = &get_python_version();
($pythonver) = $pythonver =~ /(\d+.\d+)/;
my $pythonlibs = "lib/python$pythonver";
my $cmd = "cd $opts->{'idir'}/$opts->{'project'} && PYTHONPATH=$opts->{'idir'}/$pythonlibs $python manage.py runserver $opts->{'port'} >$opts->{'logfile'} 2>&1 </dev/null";
return $cmd;
}

sub script_django_migrated
{
return 1;
}

${this.title}

Code Editor : django.pl