Major restructuring of frontend modules (package selection not done yet); created conf_build_common class for shared code among configurations and builds

17 files changed, 461 insertions, 338 deletions

diff --git a/backend/backend.php b/backend/backend.php
index 78852e4..d078191 100755
--- a/backend/backend.php
+++ b/backend/backend.php
@@ -65,7 +65,7 @@ while (true) {
 				$opt->write();
 				unset($opt);
 			}
-			$opts=$build->get_buildopts();
+			$opts=$build->get_opts();
 			$module=$opts['backend_module'];
 			$build_proc=$module.'_build';
 			foreach (glob(BACKEND."/modules/$module/*.php") as $inc) {
diff --git a/depend b/depend
index 9a48688..00ef6d6 100644
--- a/depend
+++ b/depend
@@ -1,4 +1,4 @@
->=dev-lang/php-5.2.2 USE=pdo hash pcntl pcre cli pdo mysqli apache2 curl
+>=dev-lang/php-5.2.2 USE=pdo hash pcntl pcre cli pdo mysqli apache2 curl ctype
 sys-apps/fakeroot ?
 sys-apps/portage # In case you use paludis
 www-servers/apache APACHE2_MODULES=rewrite?
diff --git a/frontend/classes/wizard_api.php b/frontend/classes/wizard_api.php
new file mode 100644
index 0000000..95ed57a
--- /dev/null
+++ b/frontend/classes/wizard_api.php
@@ -0,0 +1,171 @@
+<?php
+class wizard_step {
+	var $module, $step, $title, $next, $data=array();
+	function __construct($mod, $step) {
+		$this->module=$mod;
+		$this->step=$step;
+		$file=FRONTEND."/modules/$mod/step$step.php";
+		if (!is_readable($file)) {
+			throw_exception("$mod step $step doesn't exist!");
+		}
+		require($file);
+		$this->title="Step $step".($title?" - $title":'');
+		$this->next=$next;
+	}
+	public function output() {
+		echo "<h3>$this->title</h3>\n";
+		echo '<form action="'.url('config/'.wizard::$configuration->id).'" method="post">';
+		foreach ($this->data as $obj) {
+			if (!$obj->status) {
+				echo print_warning('Please complete this field.');
+			}
+			$obj->output();
+		}
+		echo '<br/><input type="submit" name="wizard_submit['.$this->step.']" value="Continue" />'."\n";
+	}
+	public function process() {
+		global $request;
+		if (isset($request['wizard_submit_'.$this->step])) {
+			return $this->step;
+		}
+		$result=$this->next;
+		foreach ($this->data as $obj) {
+			if (!$obj->status=$obj->process()) {
+				$result=$this->step;
+			}
+		}
+		return $result;
+	}
+	private function text($text) {
+		$this->data[]=new wizard_text($text);
+	}
+	private function text_input($optname, $htmlname, $label) {
+		$this->data[]=new wizard_text_input($optname, $htmlname, $label);
+	}
+	private function select($optname, $htmlname, $label, $options) {
+		$this->data[]=new wizard_select($optname, $htmlname, $label, $options);
+	}
+	private function query($q) {
+		return $GLOBALS['S']['pdo']->query($q);
+	}
+}
+abstract class wizard {
+	public $status=true;
+	public static $configuration;
+	public static function set_configuration(&$c) {
+		self::$configuration=&$c;
+	}
+	abstract public function output();
+	abstract public function process();
+	protected static function get_opt($name) {
+		$opts=self::$configuration->get_opts();
+		return isset($opts[$name])?$opts[$name]:null;
+	}
+	protected static function set_opt($name, $val) {
+		if (substr($name, 0, 1) == ':') {
+			self::$configuration->$name=$val;
+			self::$configuration->write();
+		} else {
+			self::$configuration->set_opt($name, $val);
+		}
+	}
+	protected static function opt_is($name, $val) {
+		$opts=self::$configuration->get_opts();
+		if (isset($opts[$name]) && $opts[$name] === $val) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+}
+class wizard_text extends wizard {
+	protected $text;
+	function __construct($text) {
+		$this->text=$text;
+	}
+	public function output() {
+		echo $this->text;
+	}
+	public function process() {
+		return true;
+	}
+}
+abstract class wizard_input extends wizard {
+	protected $optname, $htmlname, $label;
+	function __construct($optname, $htmlname, $label) {
+		$this->optname=$optname;
+		$this->htmlname=htmlentities($htmlname);
+		$this->label=htmlentities($label);
+	}
+	public function output() {
+		echo "$this->label ";
+	}
+	public function process() {
+		global $request;
+		if (isset($request[$this->optname])) {
+			self::set_opt($this->optname, $request[$this->optname]);
+			return true;
+		} else {
+			return false;
+		}
+	}
+}
+class wizard_text_input extends wizard_input {
+	public function output() {
+		parent::output();
+	}
+}
+class wizard_select extends wizard_input {
+	private $options;
+	function __construct($optname, $htmlname, $label, $options) {
+		parent::__construct($optname, $htmlname, $label);
+		$this->options=$options;
+	}
+	public function output() {
+		parent::output();
+		echo '<select name="'.$this->htmlname.'">'."\n";
+		foreach ($this->options as $val => $label) {
+			echo "\t".'<option value="'.htmlentities($val).'"'.(self::opt_is($this->optname, $val)?' selected="selected"':'').'>'.htmlentities($label).'</option>'."\n";
+		}
+		echo '</select>'."\n";
+	}
+}
+class wizard_radio extends wizard_select {
+	public function output() {
+		echo "$this->label:<br/>\n";
+		$i=0;
+		foreach ($this->options as $val => $label) {
+			echo "\t<input type=\"radio\" id=\"$this->htmlname-$i\" name=\"$this->htmlname\" value=\"".htmlentities($val)."\"".(self::opt_is($this->optname, $val)?' checked="checked"':'')."\" /><label for=\"$this->htmlname-$i\">".htmlentities($label)."</label>\n";
+		}
+	}
+}
+class wizard_checkbox_array extends wizard_input {
+	private $boxes;
+	function __construct($optname, $htmlname, $label, $boxes, $delim=' ') {
+		parent::__construct($optname, $htmlname, $label);
+		$this->boxes=$boxes;
+		$this->delim=$delim;
+	}
+	public function output() {
+		echo "$this->label:<br/>\n";
+		$i=0;
+		foreach ($this->boxes as $val => $label) {
+			echo "\t<input type=\"checkbox\" id=\"$this->htmlname-$i\" name=\"$this->htmlname[$i]\"".(self::opt_has($this->optname, $val, $this->delim)?' checked="checked"':'')." /><label for=\"$this->htmlname-$i\">$label</label><br/>\n";
+			$i++;
+		}
+	}
+	public function process() {
+		global $request;
+		$val=array();
+		// FIXME we're assuming that array_keys order is determinate and the same as the foreach in output()
+		$vals=array_keys($this->boxes);
+		foreach ($request[$this->htmlname] as $i) {
+			$val[]=$vals[$i];
+		}
+		self::set_opt($this->optname, implode($this->delim, $vals));
+	}
+	protected static function opt_has($name, $val, $delim=' ') {
+		return (array_search($val, explode($delim, self::get_opt($name))) !== false);
+	}
+}
+?>
diff --git a/frontend/css/pkgs.css b/frontend/css/pkgs.css
new file mode 100644
index 0000000..f9251da
--- /dev/null
+++ b/frontend/css/pkgs.css
@@ -0,0 +1,22 @@
+#plist {
+	height: 25em;
+	overflow: auto;
+}
+#plist a {
+	text-decoration: none;
+}
+#plist div.masked {
+	color: red;
+}
+#plist div.bct {
+	font-size: 125%;
+}
+#plist div.lct {
+	font-size: 110%;
+}
+#plist div.bc, div.lc {
+	padding-left: 2em;
+}
+#plist .pd {
+	cursor: pointer;
+}
diff --git a/frontend/js/debug.js.php b/frontend/js/debug.js.php
index 5e33ce8..cc28959 100644
--- a/frontend/js/debug.js.php
+++ b/frontend/js/debug.js.php
@@ -14,13 +14,14 @@ function debug (subtype, text) {
 	}
 	text+="";
 	text=text.replace(/(\r\n|\r|\n)/g,'<br/>');
+	text=text.replace(/ /g, '&nbsp;');
 	if (debugrow > 0) {
 		hidedebug(debugrow);
 	}
 	div=document.createElement('div');
 	div.className='debug '+(++debugrow%2?'odd':'even');
 	div.id='debug'+debugrow;
-	big=text.match('<br') || text.length > 100;
+	big=text.match('<br') || text.length > 150;
 	div.innerHTML='<span class="type'+(big?' pointer" onclick="toggledebug('+debugrow+')':'')+'">'+(big?'<img id="debugmanager'+debugrow+'" src="'+url('images/minusbox.gif')+'" alt="[Hide]" /> ':'')+(subtype!=null?subtype+':':'')+'</span><span> '+text+'</span>';
 	document.getElementById("debugbox").appendChild(div);
 	document.getElementById("debugcount").childNodes[0].nodeValue=debugrow;
diff --git a/frontend/js/pkgsearch.js b/frontend/js/pkgsearch.js
new file mode 100644
index 0000000..86dc1c3
--- /dev/null
+++ b/frontend/js/pkgsearch.js
@@ -0,0 +1,75 @@
+function tog_show_pkgs(lc) {
+	var div=document.getElementById('lc-'+lc);
+	if (div.style.display == "none") {
+		div.style.display="";
+	} else {
+		div.style.display="none";
+	}
+}
+var oldq=null;
+function packagesearch(entry) {
+	var q=entry.value;
+	if (q !== oldq) {
+		filter_packages_by(q);
+	}
+	oldq=q;
+}
+function filter_packages_by(q) {
+	var plist=document.getElementById('plist');
+	var tfound=0;
+	for (i=0; i<plist.childNodes.length; i++) {
+		var bc=plist.childNodes[i];
+		if (bc.className !== 'bc') {
+			continue;
+		}
+		var bcid=bc.id.substr(3);
+		var bfound=0;
+		for (j=0; j<bc.childNodes.length; j++) {
+			var lc=bc.childNodes[j];
+			if (lc.className !== 'lc') {
+				continue;
+			}
+			var lcid=lc.id.substr(3, lc.id.length-3);
+			var found=0;
+			for (k=0; k<lc.childNodes.length; k++) {
+				var p=lc.childNodes[k];
+				if (!p.className || p.className.substr(0,3) !== 'pkg') {
+					continue;
+				}
+				if (q == '') {
+					p.style.display="";
+				} else {
+					var name='';
+					for (l=0; l<p.childNodes.length; l++) {
+						var d=p.childNodes[l];
+						if (d.className == 'pd') {
+							name=d.innerHTML;
+							break;
+						}
+					}
+					if (name && name.toLowerCase().indexOf(q.toLowerCase()) != -1) {
+						p.style.display="";
+						found++;
+					} else {
+						p.style.display="none";
+					}
+				}
+			}
+			if (q == "" || found == 0) {
+				lc.style.display="none";
+				document.getElementById('lct-'+lcid).style.display=(q == ''?"":"none");
+			} else {
+				bfound+=found;
+				lc.style.display="";
+				document.getElementById('lct-'+lcid).style.display="";
+			}
+		}
+		if (q=="" || bfound > 0) {
+			document.getElementById('bct-'+bcid).style.display="";
+		} else {
+			document.getElementById('bct-'+bcid).style.display="none";
+		}
+		tfound+=bfound;
+	}
+	document.getElementById('zero').style.display=(tfound || !q.length?'none':'');
+}
diff --git a/frontend/modules/gentoo/step1.php b/frontend/modules/gentoo/step1.php
index 20899bb..d3ee3b9 100644
--- a/frontend/modules/gentoo/step1.php
+++ b/frontend/modules/gentoo/step1.php
@@ -1,24 +1,12 @@
 <?php
-function gentoo_init_step1() {
-	return array('title' => 'Step 1 - Choose Profile');
-}
-function gentoo_body_step1() {
-	global $S;
-	$configuration=&$S['wizard.configuration'];
-	//$opts=$configuration->get_configopts(); // TODO use this to set selected="selected" on the current profile
-	echo 'Profile: <select name="profileid">';
-	$r=$S['pdo']->query('SELECT * FROM `gentoo_profiles` WHERE `flags` NOT LIKE "%d%"'); // d for disabled
-	while ($profile=$r->fetch(PDO::FETCH_ASSOC)) {
-		$profile=new sql_gentoo_profile($profile);
-		$display=$profile->name?$profile->name:($profile->pkgdir?$profile->pkgdir:'/');
-		echo '<option value="'.$profile->id.'">'.htmlentities($display).'</option>';
-	}
-	echo '</select><br/>';
-}
-function gentoo_process_step1() {
-	global $S, $request;
-	$profile=new sql_gentoo_profile($request['profileid']);
-	$profileopt=new sql_configopt($S['wizard.configuration']->id, 'profile', $profile->id);
-	$profileopt->write();
+$title='Choose Profile';
+$opts=array();
+$r=$this->query('SELECT * FROM `gentoo_profiles` WHERE `flags` NOT LIKE "%d%"');
+while ($profile=$r->fetch(PDO::FETCH_ASSOC)) {
+	$profile=new sql_gentoo_profile($profile);
+	$display=$profile->name?$profile->name:($profile->pkgdir?$profile->pkgdir:'/');
+	$opts[$profile->id]=$display;
 }
+$this->select('profile', 'profile', 'Profile', $opts);
+$next=2;
 ?>
diff --git a/frontend/modules/gentoo/step2.php b/frontend/modules/gentoo/step2.php
index c800a5d..9ca5ee7 100644
--- a/frontend/modules/gentoo/step2.php
+++ b/frontend/modules/gentoo/step2.php
@@ -1,111 +1,9 @@
 <?php
-function gentoo_init_step2() {
-	$js=<<<JS
-function tog_show_pkgs(lc) {
-	var div=document.getElementById('lc-'+lc);
-	if (div.style.display == "none") {
-		div.style.display="";
-	} else {
-		div.style.display="none";
-	}
-}
-var oldq=null;
-function packagesearch(entry) {
-	var q=entry.value;
-	if (q !== oldq) {
-		filter_packages_by(q);
-	}
-	oldq=q;
-}
-function filter_packages_by(q) {
-	var plist=document.getElementById('plist');
-	var tfound=0;
-	for (i=0; i<plist.childNodes.length; i++) {
-		var bc=plist.childNodes[i];
-		if (bc.className !== 'bc') {
-			continue;
-		}
-		var bcid=bc.id.substr(3);
-		var bfound=0;
-		for (j=0; j<bc.childNodes.length; j++) {
-			var lc=bc.childNodes[j];
-			if (lc.className !== 'lc') {
-				continue;
-			}
-			var lcid=lc.id.substr(3, lc.id.length-3);
-			var found=0;
-			for (k=0; k<lc.childNodes.length; k++) {
-				var p=lc.childNodes[k];
-				if (!p.className || p.className.substr(0,3) !== 'pkg') {
-					continue;
-				}
-				if (q == '') {
-					p.style.display="";
-				} else {
-					var name='';
-					for (l=0; l<p.childNodes.length; l++) {
-						var d=p.childNodes[l];
-						if (d.className == 'pd') {
-							name=d.innerHTML;
-							break;
-						}
-					}
-					if (name && name.toLowerCase().indexOf(q.toLowerCase()) != -1) {
-						p.style.display="";
-						found++;
-					} else {
-						p.style.display="none";
-					}
-				}
-			}
-			if (q == "" || found == 0) {
-				lc.style.display="none";
-				document.getElementById('lct-'+lcid).style.display=(q == ''?"":"none");
-			} else {
-				bfound+=found;
-				lc.style.display="";
-				document.getElementById('lct-'+lcid).style.display="";
-			}
-		}
-		if (q=="" || bfound > 0) {
-			document.getElementById('bct-'+bcid).style.display="";
-		} else {
-			document.getElementById('bct-'+bcid).style.display="none";
-		}
-		tfound+=bfound;
-	}
-	document.getElementById('zero').style.display=(tfound || !q.length?'none':'');
-}
-JS;
-	$css=<<<CSS
-#plist {
-	height: 25em;
-	overflow: auto;
-}
-#plist a {
-	text-decoration: none;
-}
-div.masked {
-	color: red;
-}
-div.bct {
-	font-size: 125%;
-}
-div.lct {
-	font-size: 110%;
-}
-div.bc, div.lc {
-	padding-left: 2em;
-}
-.pd {
-	cursor: pointer;
-}
-CSS;
-	return array('title' => 'Step 2 - Choose Extra Packages', 'head_scripts' => array($js), 'head_css' => array($css));
-}
+$title='Choose Extra Packages';
+$scripts='pkgsearch';
 function gentoo_body_step2() {
 	global $S;
-	$configuration=&$S['wizard.configuration'];
+	$configuration=&$S['wizard']['configuration'];
 	$opts=$configuration->get_configopts();
 	$profile=new sql_gentoo_profile($opts['profile']);
 	$bcs=$profile->get_packages();
@@ -136,7 +34,7 @@ function gentoo_process_step2() {
 			$packages[]='='.$name;
 		}
 		$packages=implode(' ', $packages);
-		$opt=new sql_configopt($S['wizard.configuration']->id, 'install_packages', $packages);
+		$opt=new sql_configopt($S['wizard']['configuration']->id, 'install_packages', $packages);
 		$opt->write();
 	}
 }
diff --git a/frontend/modules/gentoo/step3.php b/frontend/modules/gentoo/step3.php
index 2f66325..9dd523a 100644
--- a/frontend/modules/gentoo/step3.php
+++ b/frontend/modules/gentoo/step3.php
@@ -1,18 +1,13 @@
 <?php
-function gentoo_init_step3() {
-	return array('title' => 'Step 3 - Image Format');
-}
-function gentoo_body_step3() {
-	echo 'Image type: <select name="image_type"><option value="tgz">Tar/Gzip</option><option value="tbz2">Tar/Bzip2</option><option value="installcd">Installer CD with Tar/Bzip2 image</option><option value="livecd">LiveCD</option><option value="ext2">ext2</option><option value="jffs2">jffs2</option></select><br/>';
-}
-function gentoo_process_step3() {
-	global $S, $request;
-	if (isset($request['image_type'])) {
-		debug('wizard', 'step3: image type='.$request['image_type']);
-		$opt=new sql_configopt($S['wizard.configuration']->id, 'image_type', $request['image_type']);
-		$opt->write();
-	} else {
-		debug('wizard', 'step3: no image_type variable');
-	}
-	return true;
-}
+// TODO This shouldn't be a step at all, it should be in wizard.php to choose between output modules
+$title='Image Format';
+$this->select('image_type', 'image_type', 'Image type', array(
+	'tgz' => 'Tar/Gzip',
+	'tbz2' => 'Tar/Bzip2',
+	'installcd' => 'Installer CD with Tar/Bzip2',
+	'livecd' => 'LiveCD',
+	'ext2' => 'ext2',
+	'jffs2' => 'jffs2'
+));
+$next=null;
+?>
diff --git a/frontend/modules/gentoo_catalyst b/frontend/modules/gentoo_catalyst
new file mode 120000
index 0000000..0c0273e
--- /dev/null
+++ b/frontend/modules/gentoo_catalyst
@@ -0,0 +1 @@
+gentoo
\ No newline at end of file
diff --git a/frontend/modules/gentoo_portage b/frontend/modules/gentoo_portage
new file mode 120000
index 0000000..0c0273e
--- /dev/null
+++ b/frontend/modules/gentoo_portage
@@ -0,0 +1 @@
+gentoo
\ No newline at end of file
diff --git a/frontend/pages/configurations/wizard.php b/frontend/pages/configurations/wizard.php
index 3931363..de35c65 100644
--- a/frontend/pages/configurations/wizard.php
+++ b/frontend/pages/configurations/wizard.php
@@ -4,129 +4,81 @@ function init_configurations_wizard() {
 	if (!isset($S['user'])) {
 		return 'login';
 	}
-	// Make it so you can just pop over to config configuration=x and it will go to the right step
-	if (isset($request['configuration']) && preg_match('/^[a-zA-Z0-9]{6}$/', $request['configuration'])) {
-		$r=$S['pdo']->query('SELECT * FROM `configurations` WHERE `owner`='.$S['user']->id.' AND `id`="'.$request['configuration'].'"');
-		if ($r->rowCount()) {
-			$S['wizard.configuration']=new sql_configuration($r->fetch(PDO::FETCH_ASSOC));
-			$configuration=&$S['wizard.configuration'];
-			$opts=$configuration->get_configopts();
-			$S['wizard.module']=$opts['frontend_module'];
-			$module=&$S['wizard.module'];
-			if (!preg_match('#^config/step([0-9]+)$#', $configuration->status, $match)) {
-				debug('wizard', 'configuration not in config stage (status '.$configuration->status.') - PANIC!');
-				throw_exception('We haven\'t implemented this yet.');
-			}
-			$S['wizard.step']=$match[1];
-			$step=&$S['wizard.step'];
-			debug('wizard', 'Build '.$configuration->id." is at step $step");
-			if (isset($request['wizard_submit'])) {
-				debug('wizard', "Processing step $step");
-				if (!is_file(FRONTEND."/modules/$module/step$step.php")) {
-					throw_exception("$modules step $step doesn't exist!");
-				}
-				require_once(FRONTEND."/modules/$module/step$step.php");
-				$proc=$module.'_process_step'.$step;
-				if (function_exists($proc)) {
-					if ($proc() === true) {
-						debug('wizard', "Step $step returned <i>true</i> - config finished!");
-						$configuration->status='config/done';
-						$configuration->write();
-						$S['wizard.done']=true;
-						return array('title' => 'Config Finished');
-					}
-				} else {
-					debug('wizard', "No processing function for $wizard step $step");
-				}
-				$configuration->status='config/step'.++$step;
+	if (isset($request['configuration']) && strlen($request['configuration']) == 6 && ctype_alnum($request['configuration'])) {
+		$S['wizard']['configuration']=new sql_configuration($request['configuration']);
+		wizard::set_configuration($S['wizard']['configuration']);		
+		$configuration=&$S['wizard']['configuration'];
+		if ($configuration->owner != $S['user']->id) {
+			return '404';
+		}
+		if (isset($request['wizard_submit'])) {
+			$steps=array_keys($request['wizard_submit']);
+			$step=$steps[0];
+			wizard_load_step($step);
+			debug('wizard', "processing $configuration->module step $step");
+			$result=$S['wizard']['step']->process();
+			if ($result === $step) {
+				debug('wizard', "$configuration->module step $step not finished - staying put");
+			} elseif ($result === null) {
+				debug('wizard', "$configuration->module step $step returned <i>null</i> - config finished");
+				$configuration->status=0;
 				$configuration->write();
-				debug('wizard', "Continuing to step $step");
 			} else {
-				debug('wizard', "Not ready for processing... staying at step $step");
+				$configuration->status=$result;
+				$configuration->write();
+				wizard_load_step($result);
 			}
-		} else {
-			throw_exception('Build not found');
+		} elseif (isset($request['step']) && ctype_alnum($request['step'])) {
+			wizard_load_step($request['step']);
+		} elseif ($configuration->status > 0) {
+			wizard_load_step($configuration->status);
 		}
 	} elseif (isset($request['init'])) {
-		$r=$S['pdo']->query('SELECT * FROM `configurations` WHERE `owner`='.$S['user']->id.' AND `status`="config/step1"');
-		if ($r->rowCount()) {
-			$S['wizard.configuration']=new sql_configuration($r->fetch(PDO::FETCH_ASSOC));
-		} else {
-			$S['wizard.configuration']=new sql_configuration();
-			$S['wizard.configuration']->init();
-		}
-		$configuration=&$S['wizard.configuration'];		
-		$S['wizard.configuration']->name=$request['name'];
-		$S['wizard.configuration']->write();
-		$femods=explode(' ', $conf['frontend_modules']);
-		$bemods=explode(' ', $conf['backend_modules']);
-		$femod=isset($request['femod']) && isset($femods[$request['femod']])?$femods[$request['femod']]:$femods[0];
-		$bemod=isset($request['bemod']) && isset($bemods[$request['bemod']])?$bemods[$request['bemod']]:$bemods[0];
-		$beopt=new sql_configopt($configuration->id, 'backend_module', $bemod);
-		$feopt=new sql_configopt($configuration->id, 'frontend_module', $femod);
-		debug('wizard', "Backend: $bemod; Frontend: $femod");
-		$beopt->write();
-		$feopt->write();
-		$S['wizard.module']=$femod;
-		$module=&$S['wizard.module'];
-		$S['wizard.step']=1;
+		$S['wizard']['configuration']=new sql_configuration();
+		wizard::set_configuration($S['wizard']['configuration']);		
+		$configuration=&$S['wizard']['configuration'];
+		$configuration->name=$request['name'];
+		$mods=explode(' ', $conf['modules']);
+		$mod=isset($request['mod']) && isset($mods[$request['mod']])?$mods[$request['mod']]:$mods[0];
+		$configuration->module=$mod;
+		$configuration->init();
+		debug('wizard', "Module: $mod");
+		wizard_load_step(1);
 	}
-	if (isset($S['wizard.configuration'], $S['wizard.step'])) {
-		$step=&$S['wizard.step'];
-		if (is_file(FRONTEND."/modules/$module/step$step.php")) {
-			require_once(FRONTEND."/modules/$module/step$step.php");
-			$S['title']='Create - Step '.$step;
-			$proc=$module.'_init_step'.$step;
-			if (function_exists($proc)) {
-				return $proc();
-			} else {
-				debug('wizard', 'No init function for step '.$step);
-				return;
-			}
-		} else {
-			throw_exception("$module step $step doesn't exist");
-		}
+	if (isset($S['wizard']['step'])) {
+		return array('title' => $S['wizard']['step']->title);
+	} else {
+		return array('title' => 'Create');
 	}
-	return array('title' => 'Create');
 }
 function body_configurations_wizard() {
 	global $S, $conf;
-	if (isset($S['wizard.configuration'])) {
-		if (isset($S['wizard.done'])) {
-			echo print_success('Config finished!', '<form action="'.url('configurations').'" method="post"><input type="hidden" name="configuration" value="'.$S['wizard.configuration']->id.'" />Name (optional): <input name="name" value="'.($S['wizard.configuration']->name?htmlentities($S['wizard.configuration']->name):'').'" /> <input type="submit" name="build" value="Build" /></form>');
+	if (isset($S['wizard']['configuration'])) {
+		$configuration=&$S['wizard']['configuration'];
+		if ($configuration->status == 0) {
+			echo print_success('Config finished!', '<form action="'.url('configurations').'" method="post"><input type="hidden" name="configuration" value="'.$configuration->id.'" />Name (optional): <input name="name" value="'.($configuration->name?htmlentities($configuration->name):'').'" /> <input type="submit" name="build" value="Build" /></form>');
 		} else {
-			$configuration=&$S['wizard.configuration'];
-			$module=&$S['wizard.module'];
-			$step=&$S['wizard.step'];
-			echo '<h3>'.$S['title'].'</h3>';
-			echo '<form action="'.url('config/'.$configuration->id).'" method="post">';
-			require_once(FRONTEND."/modules/$module/step$step.php");
-			$proc=$module.'_body_step'.$step;
-			if (!function_exists($proc)) {
-				throw_exception("Body function doesn't exist for $module step $step");
-			}
-			$proc();
-			echo '<input type="submit" name="wizard_submit" value="Continue" /></form>';
+			$S['wizard']['step']->output();
 		}
 	} else {
 		echo '<form action="'.url('create').'" method="post"><h3>Request an image built</h3>Name of your configuration (optional): <input name="name" /><br/>';
-		$femods=explode(' ', $conf['frontend_modules']);
-		$bemods=explode(' ', $conf['backend_modules']);
-		if (count($femods) > 1) {
-			echo 'Frontend module: <select name="femod">';
+		$mods=explode(' ', $conf['modules']);
+		if (count($mods) > 1) {
+			echo 'Module: <select name="mod">';
 			$i=0;
-			foreach ($femods as $mod)
-				echo '<option value="'.$i++."\">$mod</option>";
-			echo '</select><br/>';
-		}
-		if (count($bemods) > 1) {
-			echo 'Backend module: <select name="bemod">';
-			$i=0;
-			foreach ($bemods as $mod)
+			foreach ($mods as $mod)
 				echo '<option value="'.$i++."\">$mod</option>";
 			echo '</select><br/>';
 		}
 		echo '<input type="submit" name="init" value="Start" /></form>';
 	}
 }
+function &wizard_load_step($step) {
+	global $S;
+	if (!isset($S['wizard']['steps'][$step])) {
+		$S['wizard']['steps'][$step]=new wizard_step($S['wizard']['configuration']->module, $step);
+	}
+	$S['wizard']['step']=&$S['wizard']['steps'][$step];
+	return $S['wizard']['steps'];
+}
 ?>
diff --git a/frontend/pages/upload.php b/frontend/pages/upload.php
index 0c5ceb3..04f8036 100644
--- a/frontend/pages/upload.php
+++ b/frontend/pages/upload.php
@@ -11,7 +11,7 @@ function init_upload() {
 		return '404';
 	}
 	$build=new sql_build($r->fetch(PDO::FETCH_ASSOC));
-	$opts=$build->get_buildopts();
+	$opts=$build->get_opts();
 	if (!(isset($opts['uploadkey']) && $opts['uploadkey'] == $request['key'])) {
 		debug('upload', 'invalid upload key');
 		return '404';
diff --git a/shared/classes/1conf_build_common.php b/shared/classes/1conf_build_common.php
new file mode 100644
index 0000000..4e74d09
--- /dev/null
+++ b/shared/classes/1conf_build_common.php
@@ -0,0 +1,92 @@
+<?php
+abstract class conf_build_common extends sql_row_obj {
+	private $info;
+	private function set_vars() {
+		if (isset($this->info)) {
+			return;
+		}
+		$array=array(
+			'sql_configuration' => array(
+				'optsclass' => 'sql_configopt',
+				'optstable' => 'configopts',
+				'self' => 'configuration',
+			),
+			'sql_build' => array(
+				'optsclass' => 'sql_buildopt',
+				'optstable' => 'buildopts',
+				'self' => 'build'
+			)
+		);
+		$this->info=$array[get_class($this)];
+	}
+	// Fetches all available configopts pertaining to this configuration in a nice array (cached)
+	private $opt_cache;
+	public function &get_opts($get_objs=false) {
+		$this->set_vars();
+		global $S;
+		if (!isset($this->opt_cache)) {
+			$this->opt_cache=array();
+			$r=$S['pdo']->query('SELECT * FROM `'.$this->info['optstable'].'` WHERE `'.$this->info['self'].'`="'.$this->id.'"');
+			while ($opt=$r->fetch(PDO::FETCH_ASSOC)) {
+				$this->opt_cache[$opt['name']]=new $this->info['optsclass']($opt);
+			}
+		}
+		if ($get_objs) {
+			return $this->opt_cache;
+		} else {
+			$opts=array();
+			foreach ($this->opt_cache as $opt) {
+				$opts[$opt->name]=$opt->value;
+			}
+		}
+		return $opts;
+	}
+	// Generates a unique id and sets status to 1, writes self to db and returns id
+	public function init() {
+		global $S;
+		$this->owner=$S['user']->id;
+		$this->status=1;
+		$fails=0;
+		while (true) {
+			$id=randstring(6);
+			debug("Trying id=$id...");
+			$r=$S['pdo']->query('SELECT `id` FROM `'.$this->table.'` WHERE `id`="'.$id.'"');
+			if ($r->rowCount() == 0) {
+				break;
+			}
+			if (++$fails == 10) {
+				throw_exception('Failed 10 times to find a unique id in table `'.$this->table.'`... this shouldn\'t happen.');
+			}
+		}
+		$this->id=$id;
+		$this->write();
+		return $this->id;
+	}
+	public function summary() {
+		$opts=$this->get_opts();
+		$r=array();
+		foreach($opts as $name => $val) {
+			$name=htmlentities($name);
+			$val=htmlentities($val);
+			$r[]="$name</td><td class=\"val\">$val";
+		}
+		if ($r) {
+			return '<table class="configsummary"><tr><td class="name">'.implode('</td></tr><tr><td class="name">', $r).'</td></tr></table>';
+		} else {
+			return '<i>No options set</i>';
+		}
+	}
+	// Sets a particular config/buildopt, using either UPDATE or INSERT
+	public function set_opt($name, $val) {
+		$this->set_vars();
+		$opts=$this->get_opts(true);
+		if (isset($opts[$name])) {
+			$opts[$name]->value=$val;
+			$opts[$name]->write();
+		} else {
+			$this->opt_cache[$name]=new $this->info['optsclass']($this->id, $name, $val);
+			$this->opt_cache[$name]->write();
+		}
+	}
+}
+?>
diff --git a/shared/classes/build.php b/shared/classes/build.php
index 9b2decc..b13ac29 100644
--- a/shared/classes/build.php
+++ b/shared/classes/build.php
@@ -1,5 +1,5 @@
 <?php
-class sql_build extends sql_row_obj {
+class sql_build extends conf_build_common {
 	protected $table='builds', $primary_key=array('id'), $columns=array(
 		'id' => array (
 			'type' => 'CHAR',
@@ -41,38 +41,6 @@ class sql_build extends sql_row_obj {
 			'unsigned' => true
 		)
 	);
-	// Generates a unique id and sets status to config/step0, writes self to db and returns id
-	public function init() {
-		global $S;
-		$this->owner=$S['user']->id;
-		$this->status='config/step1';
-		$fails=0;
-		while (true) {
-			$id=randstring(6);
-			debug("Trying id=$id...");
-			$r=$S['pdo']->query('SELECT `id` FROM `builds` WHERE `id`="'.$id.'"');
-			if ($r->rowCount() == 0) {
-				break;
-			}
-			if (++$fails == 10) {
-				throw_exception('Failed 10 times to find a unique build id... this shouldn\'t happen.');
-			}
-		}
-		$this->id=$id;
-		$this->write();
-		return $this->id;
-	}
-	// Fetches all available buildopts pertaining to this build in a nice array
-	function &get_buildopts() {
-		global $S;
-		$r=$S['pdo']->query('SELECT * FROM `buildopts` WHERE `build`="'.$this->id.'"');
-		$opts=array();
-		while ($opt=$r->fetch(PDO::FETCH_ASSOC)) {
-			$opt=new sql_buildopt($opt);
-			$opts[$opt->name]=$opt->value; // TODO maybe we should return the actual objects
-		}
-		return $opts;
-	}
 	// Returns HTML code describing this build's status (for human consumption)
 	function display() {
 		global $S;
diff --git a/shared/classes/configuration.php b/shared/classes/configuration.php
index 088908f..fedef12 100644
--- a/shared/classes/configuration.php
+++ b/shared/classes/configuration.php
@@ -1,5 +1,5 @@
 <?php
-class sql_configuration extends sql_row_obj {
+class sql_configuration extends conf_build_common {
 	protected $table='configurations', $primary_key=array('id'), $columns=array(
 		'id' => array (
 			'type' => 'CHAR',
@@ -19,51 +19,25 @@ class sql_configuration extends sql_row_obj {
 			'type' => 'VARCHAR',
 			'length' => 255
 		),
-		'status' => array (
+		'module' => array (
 			'type' => 'VARCHAR',
 			'length' => 255,
 			'not_null' => true,
 			'default' => ''
+		),
+		'status' => array (
+			'type' => 'TINYINT',
+			'length' => 4,
+			'not_null' => true,
+			'default' => 0
 		)
 
 	);
-	// Generates a unique id and sets status to config/step0, writes self to db and returns id
-	public function init() {
-		global $S;
-		$this->owner=$S['user']->id;
-		$this->status='config/step1';
-		$fails=0;
-		while (true) {
-			$id=randstring(6);
-			debug("Trying id=$id...");
-			$r=$S['pdo']->query('SELECT `id` FROM `configurations` WHERE `id`="'.$id.'"');
-			if ($r->rowCount() == 0) {
-				break;
-			}
-			if (++$fails == 10) {
-				throw_exception('Failed 10 times to find a unique configuration id... this shouldn\'t happen.');
-			}
-		}
-		$this->id=$id;
-		$this->write();
-		return $this->id;
-	}
-	// Fetches all available configopts pertaining to this configuration in a nice array
-	function &get_configopts() {
-		global $S;
-		$r=$S['pdo']->query('SELECT * FROM `configopts` WHERE `configuration`="'.$this->id.'"');
-		$opts=array();
-		while ($opt=$r->fetch(PDO::FETCH_ASSOC)) {
-			$opt=new sql_configopt($opt);
-			$opts[$opt->name]=$opt->value; // TODO maybe we should return the actual objects
-		}
-		return $opts;
-	}
-	function build($name=null) {
+	public function build($name=null) {
 		$build=new sql_build();
 		$build->init();
 		$build->name=$name;
-		$opts=$this->get_configopts();
+		$opts=$this->get_opts();
 		$opts['configuration']=$this->id;
 		foreach ($opts as $name => $val) {
 			$opt=new sql_buildopt($build->id, $name, $val);
@@ -74,22 +48,8 @@ class sql_configuration extends sql_row_obj {
 		$build->write();
 		return $build;
 	}
-	function summary() {
-		$opts=$this->get_configopts();
-		$r=array();
-		foreach($opts as $name => $val) {
-			$name=htmlentities($name);
-			$val=htmlentities($val);
-			$r[]="$name</td><td class=\"val\">$val";
-		}
-		if ($r) {
-			return '<table class="configsummary"><tr><td class="name">'.implode('</td></tr><tr><td class="name">', $r).'</td></tr></table>';
-		} else {
-			return '<i>No options set</i>';
-		}
-	}
 	// Returns an array of the IDs of all the builds that report this configuration as their source
-	function get_builds() {
+	public function get_builds() {
 		global $S;
 		$r=$S['pdo']->query('SELECT `build` FROM `buildopts` WHERE `name`="configuration" AND `value`="'.$this->id.'"');
 		if ($r->rowCount()) {
diff --git a/shared/config.php b/shared/config.php
index d48d17e..b42cb8a 100644
--- a/shared/config.php
+++ b/shared/config.php
@@ -6,8 +6,7 @@ $conf['sqlpass']='socpassword'; // MySQL password
 $conf['sqldb']='soc'; // MySQL database
 $conf['debug']=true; // Whether to print debugging information
 $conf['cache']=true; // Whether to enable built-in caching
-$conf['backend_modules']='gentoo_portage gentoo_catalyst'; // Space-separated list of backend modules to offer the user
-$conf['frontend_modules']='gentoo'; // Space-separated list of frontend modules to offer the user
+$conf['modules']='gentoo_portage x gentoo_catalyst'; // Space-separated list of modules to offer the user
 $conf['cookiename']='ingenueid'; // Name of the cookie to send for keeping sessions
 $conf['sessionlength']=1814400; // Time in seconds before sessions are purged
 $conf['timezone']=10800; // Time difference in seconds between UTC and the default timezone