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iEmo
/
functions.php

<?php

/**
 * Author: 神秘布偶猫
 * E-mail: me@onll.cn
 */

// 后台设置
add_action('admin_menu', 'add_theme_options_menu');
function add_theme_options_menu() {
  add_menu_page(
    'iEmo主题设置',
    'iEmo主题设置',
    'edit_themes',
    'iemo_option',
    'iemo_option_admin'
  );
}
function iemo_option_admin() {
  require get_template_directory()."/admin/option.php";
}


// head标签
function get_head() {
  require 'inc/head.php';
}

// foot标签
function get_foot() {
  require 'inc/foot.php';
}

// nav标签
function get_nav() {
  require 'inc/nav.php';
}

// aside标签
function get_aside() {
  require 'inc/aside.php';
}

// 静态路径
function fileUri() {
  return get_template_directory_uri();
}


// 网站标题
function show_wp_title() {
  global $page, $paged;
  wp_title( '&#8211;', true, 'right' );
  bloginfo( 'name' );
  $site_description = get_bloginfo( 'description', 'display' );
  if($site_description && (is_home() || is_front_page()))
    echo ' &#8211; ' . $site_description;
  if ( $paged >= 2 || $page >= 2 )
    echo ' &#8211; ' . sprintf('第%s页', max( $paged, $page ));
}


// 摘要长度
function excerpt_length($length) {
  return 300;
}
add_filter('excerpt_length', 'excerpt_length');


// 开启特色图
if(function_exists('add_theme_support')) {
  add_theme_support('post-thumbnails',array('post','page'));
}


// 文章默认封面
function default_post_cover() {
  if(get_option("iemo_cover_post")) {
    return get_option("iemo_cover_post");
  } else {
    return fileUri().'/assets/images/random/cover-post-'.rand(1,2).'.jpg';
  }
}


// 获取文章第一张图片
function first_post_cover($content) {
  if($content === false) $content = get_the_content();
  preg_match_all('|<img.*?src=[\'"](.*?)[\'"].*?>|i', $content, $images);
  if(isset($images[1][0])){
    return $images[1][0];
  } else {
    return false;
  }
}


// API
add_action('wp_ajax_random_img', 'random_img');
add_action( 'wp_ajax_nopriv_random_img', 'random_img' );

function random_img() {
  header('Content-Type: application/json');
  try {
    $context = stream_context_create([
      'ssl' => [
        'verify_peer' => false,
        'verify_peer_name' => false,
      ],
    ]);
    $headers = @get_headers(get_option("iemo_cover_post"), true, $context);
    $location = isset($headers['Location']) ? $headers['Location'] : (isset($headers['location']) ? $headers['location'] : '');
    if (empty($location)) {
      throw new \Exception();
    }
    echo json_encode([
      'code' => 200,
      'msg' => 'success',
      'data' => [
        'url' => $location,
      ],
    ]);
  } catch (\Throwable $e) {
    echo json_encode([
      'code' => 500,
      'msg' => 'Get image failed',
    ]);
  }
  exit;
}


// 获取随机图API重定向地址
// function img_redirect_url($url, $ua=0) {
//   $ch = curl_init();
//   curl_setopt($ch, CURLOPT_URL, $url);
//   curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
//   curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
//   $httpheader[] = "Accept:*/*";
//   $httpheader[] = "Accept-Encoding:gzip,deflate,sdch";
//   $httpheader[] = "Accept-Language:zh-CN,zh;q=0.8";
//   $httpheader[] = "Connection:close";
//   curl_setopt($ch, CURLOPT_HTTPHEADER, $httpheader);
//   curl_setopt($ch, CURLOPT_HEADER, true);
//   if ($ua) {
//     curl_setopt($ch, CURLOPT_USERAGENT, $ua);
//   } else {
//     curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Linux; U; Android 4.0.4; es-mx; HTC_One_X Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0");
//   }
//   curl_setopt($ch, CURLOPT_NOBODY, 1);
//   curl_setopt($ch, CURLOPT_ENCODING, "gzip");
//   curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
//   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
//   $ret = curl_exec($ch);
//   curl_close($ch);
//   preg_match("/Location: (.*?)\r\n/iU",$ret,$location);
//   return $location[1];
// }


//获取用户信息
function get_user_role($id) {
  $user = new WP_User($id);
  return $user->data;
}


// 头像
require 'plugins/simple-local-avatars/simple-local-avatars.php';

if ( ! function_exists( 'dr_filter_get_avatar' ) ) {
  function dr_filter_get_avatar( $avatar ) {
      // 新 Gravatar 头像源，可自行修改
      $new_gravatar_sever = 'cravatar.cn';

      $sources = array(
          'www.gravatar.com/avatar/',
          '0.gravatar.com/avatar/',
          '1.gravatar.com/avatar/',
          '2.gravatar.com/avatar/',
          'secure.gravatar.com/avatar/',
          'cn.gravatar.com/avatar/'
      );

      return str_replace( $sources, $new_gravatar_sever.'/avatar/', $avatar );
  }
  add_filter( 'get_avatar', 'dr_filter_get_avatar' );
}


// 获取头像
function the_avatar_author() {
  if(get_option("iemo_avatar_author")) {
    echo '<img src="'.get_option("iemo_avatar_author").'">';
  } else {
    echo get_avatar(1, '400');
  }
}


// 添加媒体外链
require 'plugins/external-media-without-import/external-media-without-import.php';


// 个人背景图片
// function user_profile( $userProfile ) {
//   $userProfile['bgi'] = '背景图片';
//   return $userProfile;
// }
// add_filter('user_contactmethods','user_profile');


// 注册菜单
register_nav_menus( array(
  'menu' => '左侧主菜单',
  'social' => '侧边栏主页社交链接',
  'menu_sidebar' => '侧边栏附页菜单(需开启附页)',
) );

// 返回函数
function menu_fallback() {
  if(is_admin()) {
    if(is_home()) {
      echo '<div class="menu">
        <ul class="menu">
          <li class="current-menu-item"><a href="'.home_url().'" title="首页"><i class="iconfont icon-home"></i></a></li>
          <li><a href="'.home_url().'/wp-admin/nav-menus.php" title="前往设置菜单"><i class="iconfont icon-settings"></i></a></li>
        </ul>
      </div>';
    } else {
      echo '<div class="menu">
        <ul class="menu">
          <li><a href="'.home_url().'" title="首页"><i class="iconfont icon-home"></i></a></li>
          <li><a href="'.home_url().'/wp-admin/nav-menus.php" title="前往设置菜单"><i class="iconfont icon-settings"></i></a></li>
        </ul>
      </div>';
    }
  } else {
    if(is_home()) {
      echo '<div class="menu">
        <ul class="menu">
          <li class="current-menu-item"><a href="'.home_url().'" title="首页"><i class="iconfont icon-home"></i></a></li>
        </ul>
      </div>';
    } else {
      echo '<div class="menu">
        <ul class="menu">
          <li><a href="'.home_url().'" title="首页"><i class="iconfont icon-home"></i></a></li>
        </ul>
      </div>';
    }
  }
}


// 说说
function note_init() {
  $labels = [
    'name' => '说说',
    'singular_name' => '说说',
    'all_items' => '所有说说',
    'add_new' => '发表说说',
    'add_new_item' => '撰写新说说',
    'edit_item' => '编辑说说',
    'new_item' => '新说说',
    'view_item' => '查看说说',
    'search_items' => '搜索说说',
    'not_found' => '暂无说说',
    'not_found_in_trash' => '没有已遗弃的说说',
    'parent_item_colon' => '',
    'menu_name' => '说说'
  ];
  $args = [
    'labels' => $labels,
    'public' => true,
    'publicly_queryable' => true,
    'show_ui' => true,
    'show_in_menu' => true,
    'query_var' => true,
    'rewrite' => true,
    'capability_type' => 'post',
    'has_archive' => true,
    'hierarchical' => false,
    'menu_position' => null,
    'supports' => array('title','editor','author','comments'),
  ];
  register_post_type('note', $args);
}
add_action('init', 'note_init');


// 链接
add_filter( 'pre_option_link_manager_enabled', '__return_true' );
function friend_links($output){
  if(!is_home()|| is_paged()) {
    $output = '';
  }
  return $output;
}
add_filter('wp_list_bookmarks','friend_links');


// 归档页
function iemo_archives_list() {
  if( !$output = get_option('iemo_archives_list') ) {
  $the_query = new WP_Query( 'posts_per_page=-1&ignore_sticky_posts=1&showposts=-1' );
  $year=0; $mon=0; $i=0; $j=0;
  while ( $the_query->have_posts() ) : $the_query->the_post();
    $year_tmp = get_the_time('Y');
    $mon_tmp = get_the_time('m');
    if ($year != $year_tmp || $mon != $mon_tmp) {
      $year = $year_tmp;
      $mon = $mon_tmp;
      $output .= '<h3>'. $year .'年'.$mon.'月</h3>';
    }
    $output .= '<li><span>〔'.get_the_time('d日〕').'</span><a href="'.get_permalink().'">'.get_the_title().'</a></li>';
    endwhile;
    wp_reset_postdata();
    update_option('iemo_archives_list', $output);
  }
  echo $output;
}

function iemo_clear_cache() {
  update_option('iemo_archives_list', '');
}
add_action('save_post', 'iemo_clear_cache');


// 自动添加页面模板
function ashu_add_page($title,$slug,$page_template=''){
  $allPages = get_pages();
  $exists = false;
  foreach( $allPages as $page ){
    if( strtolower( $page->post_name ) == strtolower( $slug ) ){
      $exists = true;
    }
  }

  if( $exists == false ) {
    $new_page_id = wp_insert_post(
      array(
        'post_title' => $title,
        'post_type'     => 'page',
        'post_name'  => $slug,
        'comment_status' => 'closed',
        'ping_status' => 'closed',
        'post_content' => '',
        'post_status' => 'publish',
        'post_author' => 1,
        'menu_order' => 0
      )
    );
    if($new_page_id && $page_template!=''){
      update_post_meta($new_page_id, '_wp_page_template',  $page_template);
    }
  }
}

function ashu_add_pages() {
	global $pagenow;
	if ( 'themes.php' == $pagenow && isset( $_GET['activated'] ) ){
		ashu_add_page('分类','category','template/template-cate.php');
		ashu_add_page('标签','tag','template/template-tag.php');
		ashu_add_page('归档','archive','template/template-archive.php');
    ashu_add_page('说说','note','archive-note.php');
    ashu_add_page('友人帐','link','template/template-link.php');
	}
}

add_action( 'load-themes.php', 'ashu_add_pages' );


// 搜索排除页面
add_filter('pre_get_posts', function($wp_query){
  if($wp_query->is_search){
    $wp_query->set('post_type', 'post');
  }
  return $wp_query;
});


// 登出账户后重定向
// add_action('wp_logout','redirect_after_logout');
// function redirect_after_logout(){
//   wp_safe_redirect(home_url());
//   exit();
// }


// 评论区同步昵称
add_filter('get_comment_author', function ($author, $comment_ID, $comment) {
  if (!$comment->user_id) {
    return $author;
  }
  $newuser = get_userdata($comment->user_id);
  return $newuser->display_name ?: $author;
}, 10, 3);


// 修正评论用户IP不准确问题
if(isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
  $list = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
  $_SERVER['REMOTE_ADDR'] = $list[0];
}


//禁止引号半角/全角切换
add_filter('run_wptexturize', '__return_false');