commit 5a92b3e84645ab5ddf9e395bbd455848d0fa8893
Author: nobu <big-me@n-k-y.net>
Date:   Sat May 1 19:53:42 2021 +0900

    WP PLUGIN Change Protection Text
    
    ページ、投稿、カスタム投稿のパスワード保護のテキストやボタンを変更する

diff --git a/nb-protection-text.php b/nb-protection-text.php
new file mode 100644
index 0000000..54d612c
--- /dev/null
+++ b/nb-protection-text.php
@@ -0,0 +1,132 @@
+<?php
+
+/*
+Plugin Name: Protection Text
+Description: パスワード制限ページの「保護中」とテキストを変更します
+Author: Nob Kim
+Version: 1.0
+*/
+
+class NB_ProtectionText {
+
+	const ALERT_TEXT = 'このコンテンツはパスワードで保護されています。閲覧するには以下にパスワードを入力してください。';
+	const BTN_LABEL = 'パスワード';
+	const BTN_TEXT = '確定';
+
+	public function __construct() {
+		add_action( 'admin_menu', array( $this, 'add_pages' ) );
+		add_filter( 'protected_title_format', array( $this, 'edit_protected_word' ) );
+		add_filter( 'the_password_form', array( $this, 'my_password_form' ) );
+	}
+
+	public function add_pages() {
+		add_menu_page( 'アクセス権限ページ設定', 'アクセス権限ページ設定', 'level_8', __FILE__, array(
+			$this,
+			'show_text_option_page'
+		), '', 90 );
+	}
+
+	public function show_text_option_page() {
+		//$_POST['nb_protect_options'])があったら保存
+		if ( isset( $_POST['nb_protect_options'] ) ) {
+			check_admin_referer( 'shoptions' );
+			$opt = $_POST['nb_protect_options'];
+			update_option( 'nb_protect_options', $opt );
+			?>
+            <div class="updated fade"><p><strong>設定を保存しました</strong></p></div><?php
+		}
+		?>
+        <div class="wrap">
+            <div id="icon-options-general" class="icon32"><br/></div>
+            <h2>アクセス権限ページ設定</h2>
+            <form action="" method="post">
+				<?php
+				wp_nonce_field( 'shoptions' );
+				$opt = get_option( 'nb_protect_options' );
+				$show_radio = $opt['flag'] ?? 1;
+				$show_text = $opt['text'] ?? self::ALERT_TEXT;
+				$show_label = $opt['label'] ?? self::BTN_LABEL;
+				$show_btn = $opt['btn'] ?? self::BTN_TEXT;
+				?>
+                <table class="form-table">
+                    <tr valign="top">
+                        <th scope="row"><label for="inputtext">保護中</label></th>
+                        <td>
+							<?php if ( $show_radio == 2 ) : ?>
+                                <label>
+                                    <input type="radio" name="nb_protect_options[flag]" value="1">表示
+                                </label>
+                                <label>
+                                    <input type="radio" name="nb_protect_options[flag]" value="2" checked>非表示
+                                </label>
+							<?php elseif ( $show_radio == 1 ): ?>
+                                <label>
+                                    <input type="radio" name="nb_protect_options[flag]" value="1" checked>表示
+                                </label>
+                                <label>
+                                    <input type="radio" name="nb_protect_options[flag]" value="2">非表示
+                                </label>
+							<?php endif; ?>
+                        </td>
+                    </tr>
+                    <tr valign="top">
+                        <th scope="row">メッセージ</th>
+                        <td>
+                            <textarea name="nb_protect_options[text]" rows="4"
+                                      cols="60"><?php echo $show_text; ?></textarea>
+                        </td>
+                    </tr>
+                    <tr valign="top">
+                        <th scope="row">ボタンラベル</th>
+                        <td>
+                            <input type="text" name="nb_protect_options[label]" value="<?php echo $show_label; ?>">
+                        </td>
+                    </tr>
+                    <tr valign="top">
+                        <th scope="row">ボタン名</th>
+                        <td>
+                            <input type="text" name="nb_protect_options[btn]" value="<?php echo $show_btn; ?>">
+                        </td>
+                    </tr>
+                </table>
+                <p class="submit"><input type="submit" name="Submit" class="button-primary" value="変更を保存"/></p>
+            </form>
+            <!-- /.wrap --></div>
+		<?php
+	}
+
+	public function edit_protected_word( $text ) {
+		$opt = get_option( 'nb_protect_options' );
+		if ( isset( $opt['flag'] ) && $opt['flag'] == 2 ) {
+			return '%s';
+		}
+
+		return $text;
+	}
+
+	//パスワード保護時のメッセージ
+	public function my_password_form( $form_text ): string {
+		$opt = get_option( 'nb_protect_options' );
+		if ( isset( $opt['text'] ) && ! empty( $opt['text'] ) ) {
+			$alert_text = $opt['text'];
+		} else {
+			$alert_text = self::ALERT_TEXT;
+		}
+		if ( isset( $opt['label'] ) && ! empty( $opt['label'] ) ) {
+			$btn_label = $opt['label'] . ' : ';
+		} else {
+			$btn_label = self::BTN_LABEL . ' : ';
+		}
+		if ( isset( $opt['btn'] ) && ! empty( $opt['btn'] ) ) {
+			$btn_text = $opt['btn'];
+		} else {
+			$btn_text = self::BTN_TEXT;
+		}
+
+		return '<form action="' . home_url() . '/wp-login.php?action=postpass" class="post-password-form" method="post">
+<p>' . nl2br( $alert_text ) . '</p>
+<p><label for="pwbox">' . $btn_label . '<input name="post_password" id="pwbox" type="password" size="20"></label> <input type="submit" name="Submit" value="' . $btn_text . '"></p></form>';
+	}
+}
+
+$showtext = new NB_ProtectionText;
\ No newline at end of file
diff --git a/uninstall.php b/uninstall.php
new file mode 100644
index 0000000..4a21fe7
--- /dev/null
+++ b/uninstall.php
@@ -0,0 +1,8 @@
+<?php
+// WP_UNINSTALL_PLUGINが定義されているかチェック
+if (!defined('WP_UNINSTALL_PLUGIN')) {
+	die;
+}
+
+// オプション設定の削除
+delete_option('nb_protect_options');
\ No newline at end of file