add updater script

cleantalk.antispam/description.en

@@ -1,3 +1,3 @@
-- "Move JS code to external file"
-- "Update CCF option"
-- "Update custom config"
+- "Bitrix-composite support"
+- "Update SFW logic"
+- "Bug fixes and other minor improvements"

cleantalk.antispam/description.ru

@@ -1,3 +1,3 @@
-- "Весь подключаемый JS код вынесен в отдельный файл"
-- "Обновлена опция кастомных форм"
-- "Обновлен кастомный конфиг по исключению страниц из фильтрации"
+- "Поддержка композитного режима"
+- "Обновление логики SFW"
+- "Устранение ошибок и другие улучшения"

cleantalk.antispam/install/index.php

@@ -168,6 +168,7 @@ function InstallFiles() {
 				$this->ct_template_addon_tag,
 				$this->ct_template_addon_body
 		);
+
 		if($SAR_res != 0){
 		    $this->errors[] = GetMessage('CLEANTALK_ERROR_FILES_'.sprintf('%02d', $SAR_res));
 		    $ret_val = FALSE;

cleantalk.antispam/updater.php

@@ -0,0 +1,84 @@
+<?php
+if(IsModuleInstalled('cleantalk.antispam'))
+{
+	// Values for all templates
+	$ct_template_addon_tag = 'CLEANTALK template addon';
+	$ct_template_addon_body = "\n" . '<?php \Bitrix\Main\Page\Frame::getInstance()->startDynamicWithID("area"); if(CModule::IncludeModule("cleantalk.antispam")) echo CleantalkAntispam::FormAddon(); \Bitrix\Main\Page\Frame::getInstance()->finishDynamicWithID("area", "Loading..."); ?>' . "\n";
+
+	// Values for templates folder
+	$template_file = 'footer.php';
+	//...with ending slash
+	$local_template_dir = $DOCUMENT_ROOT.'/bitrix/templates/';
+	$pattern = '/(<\/body>)/i';
+	// Check system folders
+	if(!file_exists($local_template_dir)){
+		// No required system folders
+		return;
+	}
+	$all_templates_folder = glob($local_template_dir . '/*' , GLOB_ONLYDIR);
+
+	if (file_exists($local_template_dir .'/.default'))
+		$all_templates_folder[] = $local_template_dir .'/.default';
+
+	foreach ($all_templates_folder as $current_template)
+	{
+		$template_file_path = $current_template.'/'.$template_file;
+		// Last check - template PHP file
+		if(!file_exists($template_file_path) || !is_file($template_file_path) || !is_writable($template_file_path)){
+			// No template PHP file
+			return;
+		}
+
+		// Here we are sure that
+		// bitrix/templates/<template>/components/bitrix/<component>/<template>/<file>.php
+		// exists and writable
+
+		// Try to get template PHP file content
+		$template_content = file_get_contents($template_file_path);
+		if($template_content === FALSE){
+			// Cannot read from template PHP file
+			return;
+		}
+
+		// Check is it parsable
+		if(!preg_match($pattern, $template_content) === 1){
+			// Cannot find pattern for addon inserting in template PHP file
+			return;
+		}			
+		// First clean all previous CLEANTALK template addons
+		$ct_template_addon_begin = '<!-- ' . $ct_template_addon_tag . ' -->';	// don't change this!
+		$ct_template_addon_end   = '<!-- /' . $ct_template_addon_tag . ' -->';	// don't change this!
+
+		$pos_begin = strpos($template_content, $ct_template_addon_begin);
+		$pos_end   = strpos($template_content, $ct_template_addon_end);
+
+		if($pos_begin !== FALSE && $pos_end === FALSE){
+			// Cannot parse template PHP file - old CLEANTALK open tag exists only
+			return;
+		}elseif($pos_begin === FALSE && $pos_end !== FALSE){
+			// Cannot parse template PHP file - old CLEANTALK close tag exists only
+			return;
+		}elseif($pos_begin !== FALSE && $pos_end !== FALSE){
+			if($pos_begin < $pos_end){
+				// Cleaning needed
+				$template_content = substr($template_content, 0, $pos_begin) . substr($template_content, $pos_end + strlen($ct_template_addon_end));
+			}else{
+				// Cannot parse template PHP file - old CLEANTALK close tag before open tag
+				return;
+			}
+		//}elseif($pos_begin === FALSE && $pos_end === FALSE){
+		//	// Nothing to clean
+		}
+		// Second add current CLEANTALK template addon
+
+		$ct_template_addon = $ct_template_addon_begin . $ct_template_addon_body . $ct_template_addon_end . "\n\n";
+
+		$template_content = preg_replace($pattern, $ct_template_addon . '${1}', $template_content, 1);
+
+		if(!file_put_contents($template_file_path, $template_content)){
+			// Cannot write new content to template PHP file
+			return;
+		}
+
+	}	
+}