add settings of privacy protection forums (#135)

add settings of privacy protection forums

Co-authored-by: kongrui <me@rey.ink>

lang/chs/lang_forums.php

@@ -198,6 +198,7 @@ $lang_forums = array
 	'text_topic_asc' => "发布时间升序",
 	'text_post_asc' => "最近回复升序",
 	'text_post_desc' => "最近回复降序",
+	'text_post_protected' => "[size=3][b]--本版块为隐私保护版块---[/b]\n当前帖子内容仅楼主、回复作者、本版版主、管理员以上可见[/size]",
 );
 
 ?>

lang/chs/lang_settings.php

@@ -796,6 +796,9 @@ $lang_settings = array
     'text_destroy_disabled_note_two' => "天不登录，将被从数据库彻底物理删除。默认'500'，请设置一个大于上边任何一种导致封禁的值。设为'0'来禁止此规则。",
     'row_enable_global_search_system' => '启用全站搜索',
     'text_global_search_system_note' => "默认：'是'。若启用，当有多个分区时，主菜单右下角显示全站搜索入口。",
+	'row_protected_forum' => '隐私保护论坛板块',
+	'text_protected_forum' => '输入开启隐私保护的论坛板块ID，该版块的回复仅楼主作者及管理员以上可见，使用逗号分割(如:1,2,3)',
+	'forum_format_error' => '论坛ID格式错误，请检查输入!',
 );
 
 ?>

lang/cht/lang_forums.php

@@ -198,6 +198,7 @@ $lang_forums = array
 	'text_topic_asc' => "發布時間升序",
 	'text_post_asc' => "最近回覆升序",
 	'text_post_desc' => "最近回覆降序",
+	'text_post_protected' => "[size=3][b]--本版為隱私保護版---[/b]\n當前帖子內容僅樓主、回復作者、本版版主、管理員以上等級可查看[/size]",
 );
 
 ?>

lang/cht/lang_settings.php

@@ -796,6 +796,9 @@ $lang_settings = array
     'text_destroy_disabled_note_two' => "天不登錄，將被從數據庫徹底物理刪除。默認'500'，請設置一個大於上邊任何一種導致封禁的值。設為'0'來禁止此規則。",
     'row_enable_global_search_system' => '啟用全站搜索',
     'text_global_search_system_note' => "默認：'是'。若啟用，當有多個分區時，主菜單右下角顯示全站搜索入口。",
+	'row_protected_forum' => '隱私保護論壇板塊',
+	'text_protected_forum' => '輸入開啟隱私保護的論壇板塊ID，該版塊的回覆僅樓主作者及管理員以上可見，使用逗號分割(如:1,2,3)',
+	'forum_format_error' => '論壇ID格式錯誤，請核查校對!',
 );
 
 ?>

lang/en/lang_forums.php

@@ -198,6 +198,7 @@ $lang_forums = array
 	'text_topic_asc' => "Topic Time Ascendant",
 	'text_post_asc' => "Last Post Time Ascendant",
 	'text_post_desc' => "Last Post Time Descendant",
+	'text_post_protected' => "[size=3][b]--Privacy protection is enabled in this forum---[/b]\nOnly topic poster,mods,admins and reply's author can read the content.[/size]",
 );
 
 ?>

lang/en/lang_settings.php

@@ -796,6 +796,9 @@ $lang_settings = array
     'text_destroy_disabled_note_two' => "Days without logging in, will be physically deleted from the database completely. Default '500', please set a value greater than any of the above to cause disable. Set to '0' to disable this rule." ,
     'row_enable_global_search_system' => 'Enable global search',
     'text_global_search_system_note' => "Default: 'Yes'. If enabled, when there are multiple sections, the global search portal is displayed in the bottom right corner of the main menu.",
+	'row_protected_forum' => 'Privacy Protection Forums',
+	'text_protected_forum' => 'The IDs of forums\' which enables privacy protection , seperated by commas(e.g. 1,2,3)',
+	'forum_format_error' => 'The format of forums is wrong, please check it again!',
 );
 
 ?>

public/forums.php

@@ -539,6 +539,7 @@ if ($action == "viewtopic")
 	$hlcolor = $arr['hlcolor'];
 	$views = $arr['views'];
 	$forumid = $arr["forumid"];
+	$base_posterid = $arr['userid'];
 
 	$row = get_forum_row($forumid);
 	//------ Get forum name, moderators
@@ -672,6 +673,18 @@ if ($action == "viewtopic")
 	$lpr = get_last_read_post_id($topicid);
 	if ($Advertisement->enable_ad())
 		$forumpostad=$Advertisement->get_ad('forumpost');
+
+	//check if privacy protection enabled in this forum
+	$protected_forums = Nexus\Database\NexusDB::remember("setting_protected_forum", 600, function () {
+		return \App\Models\Setting::getByName('misc.protected_forum');
+	});
+	
+	if ($protected_forums and in_array(strval($forumid),explode(",",$protected_forums))){
+		$protected_enabled=true;
+	}else{
+		$protected_enabled=false;
+	}
+
 	foreach ($allPosts as $arr)
 	{
 		if ($pn>=1)
@@ -739,6 +752,15 @@ if ($action == "viewtopic")
 
 		print("<table class=\"main\" width=\"100%\" border=\"1\" cellspacing=\"0\" cellpadding=\"5\">\n");
 		
+		//hidden content applied to second or higher floor post (for whose user class below Ad , not poster , not mods ,not reply's author) 
+		if ($protected_enabled && $pn+$offset>1 && get_user_class()<UC_ADMINISTRATOR && $userid != $base_posterid && $posterid!=$userid && !$is_forummod){
+			//enable content protection
+			$bodyContent = format_comment($lang_forums["text_post_protected"]);
+		}else{
+			//display normal content
+			$bodyContent = format_comment($arr["body"]);
+		}
+				
 		$body = "<div id=\"pid".$postid."body\">";
         $bodyContent = format_comment($arr["body"]);
 		if ($highlight){

public/settings.php

@@ -288,9 +288,12 @@ elseif ($action == 'savesettings_advertisement')	// save advertisement
 elseif ($action == 'savesettings_misc')
 {
     stdhead($lang_settings['row_misc_settings']);
-    $validConfig = array('donation_custom', );
+	$validConfig = array('donation_custom', 'protected_forum',);
     GetVar($validConfig);
     $data = [];
+	if (!empty($protected_forum) && !preg_match("/^[,\\d]*[\\d]+$/",$protected_forum)){
+		stderr($lang_settings['std_error'],$lang_settings['forum_format_error'].'<br>'.$lang_settings['std_click']."<a class=\"altlink\" href=\"settings.php\">".$lang_settings['std_here']."</a>".$lang_settings['std_to_go_back'],false,false);
+	}
     foreach($validConfig as $config) {
         $data[$config] = $$config ?? null;
     }
@@ -923,6 +926,7 @@ elseif ($action == 'miscsettings')
     print ($notice);
     print ("<form method='post' action='".$_SERVER["SCRIPT_NAME"]."'><input type='hidden' name='action' value='savesettings_misc'>");
     tr($lang_settings['row_misc_donation_custom'],"<textarea cols=\"100\"  rows=\"10\" name='donation_custom'>".($misc['donation_custom'] ?? '')."</textarea><br/>".$lang_settings['text_donation_custom_note'], 1);
+	tr($lang_settings['row_protected_forum'], "<input type='text' style=\"width: 100px\" name='protected_forum' value='".($misc["protected_forum"] ??'')."'> ".$lang_settings['text_protected_forum'], 1);
 	tr($lang_settings['row_save_settings'],"<input type='submit' name='save' value='".$lang_settings['submit_save_settings']."'>", 1);
     print ("</form>");
 }