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422 lines
13 KiB
422 lines
13 KiB
<?php |
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/** |
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* name:API核心类 |
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* update:2020/12 |
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* author:xiaoz<xiaoz93@outlook.com> |
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* blog:xiaoz.me |
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*/ |
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class Api { |
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protected $db; |
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public function __construct($db){ |
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$this->db = $db; |
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//返回json类型 |
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header('Content-Type:application/json; charset=utf-8'); |
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} |
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/** |
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* name:创建分类目录 |
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*/ |
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public function add_category($token,$name,$property = 0,$weight = 0,$description = ''){ |
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$this->auth($token); |
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$data = [ |
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'name' => $name, |
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'add_time' => time(), |
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'weight' => $weight, |
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'property' => $property, |
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'description' => $description |
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]; |
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//插入分类目录 |
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$this->db->insert("on_categorys",$data); |
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//返回ID |
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$id = $this->db->id(); |
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//如果id为空（NULL），说明插入失败了，姑且认为是name重复导致 |
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if( empty($id) ){ |
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$this->err_msg(-1000,'Categorie already exist!'); |
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} |
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else{ |
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//成功并返回json格式 |
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$data = [ |
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'code' => 0, |
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'id' => intval($id) |
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]; |
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exit(json_encode($data)); |
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} |
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} |
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/** |
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* 修改分类目录 |
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* |
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*/ |
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public function edit_category($token,$id,$name,$property = 0,$weight = 0,$description = ''){ |
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$this->auth($token); |
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//如果id为空 |
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if( empty($id) ){ |
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$this->err_msg(-1003,'The category ID cannot be empty!'); |
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} |
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//如果分类名为空 |
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elseif( empty($name) ){ |
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$this->err_msg(-1004,'The category name cannot be empty!'); |
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} |
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//更新数据库 |
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else{ |
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$data = [ |
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'name' => $name, |
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'up_time' => time(), |
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'weight' => $weight, |
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'property' => $property, |
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'description' => $description |
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]; |
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$re = $this->db->update('on_categorys',$data,[ 'id' => $id]); |
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//var_dump( $this->db->log() ); |
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//获取影响行数 |
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$row = $re->rowCount(); |
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if($row) { |
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$data = [ |
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'code' => 0, |
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'msg' => 'successful' |
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]; |
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exit(json_encode($data)); |
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} |
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else{ |
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$this->err_msg(-1005,'The category name already exists!'); |
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} |
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} |
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} |
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/** |
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* 删除分类目录 |
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*/ |
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public function del_category($token,$id) { |
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//验证授权 |
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$this->auth($token); |
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//如果id为空 |
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if( empty($id) ){ |
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$this->err_msg(-1003,'The category ID cannot be empty!'); |
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} |
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//如果分类目录下存在数据 |
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$count = $this->db->count("on_links", [ |
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"fid" => $id |
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]); |
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//如果分类目录下存在数据，则不允许删除 |
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if($count > 0) { |
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$this->err_msg(-1006,'The category is not empty and cannot be deleted!'); |
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} |
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else{ |
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$data = $this->db->delete('on_categorys',[ 'id' => $id] ); |
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//返回影响行数 |
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$row = $data->rowCount(); |
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if($row) { |
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$data = [ |
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'code' => 0, |
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'msg' => 'successful' |
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]; |
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exit(json_encode($data)); |
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} |
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else{ |
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$this->err_msg(-1007,'The category delete failed!'); |
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} |
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} |
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} |
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/** |
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* name:返回错误（json） |
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* |
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*/ |
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protected function err_msg($code,$err_msg){ |
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$data = [ |
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'code' => $code, |
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'err_msg' => $err_msg |
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]; |
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//返回json类型 |
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header('Content-Type:application/json; charset=utf-8'); |
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exit(json_encode($data)); |
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} |
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/** |
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* name:验证方法 |
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*/ |
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protected function auth($token){ |
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//计算正确的token：用户名 + TOKEN |
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$token_yes = md5(USER.TOKEN); |
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//如果token为空，则验证cookie |
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if(empty($token)) { |
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if( !$this->is_login() ) { |
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$this->err_msg(-1002,'Authorization failure!'); |
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} |
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} |
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else if($token != $token_yes){ |
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$this->err_msg(-1002,'Authorization failure!'); |
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} |
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else{ |
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return true; |
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} |
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} |
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/** |
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* name:添加链接 |
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*/ |
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public function add_link($token,$fid,$title,$url,$description = '',$weight = 0,$property = 0){ |
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$this->auth($token); |
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$fid = intval($fid); |
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//检测链接是否合法 |
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$this->check_link($fid,$title,$url); |
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//合并数据 |
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$data = [ |
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'fid' => $fid, |
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'title' => $title, |
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'url' => $url, |
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'description' => $description, |
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'add_time' => time(), |
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'weight' => $weight, |
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'property' => $property |
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]; |
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//插入数据库 |
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$re = $this->db->insert('on_links',$data); |
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//返回影响行数 |
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$row = $re->rowCount(); |
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//如果为真 |
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if( $row ){ |
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$id = $this->db->id(); |
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$data = [ |
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'code' => 0, |
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'id' => $id |
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]; |
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exit(json_encode($data)); |
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} |
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//如果插入失败 |
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else{ |
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$this->err_msg(-1011,'The URL already exists!'); |
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} |
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} |
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/** |
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* name:修改链接 |
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*/ |
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public function edit_link($token,$id,$fid,$title,$url,$description = '',$weight = 0,$property = 0){ |
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$this->auth($token); |
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$fid = intval($fid); |
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//检测链接是否合法 |
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$this->check_link($fid,$title,$url); |
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//查询ID是否存在 |
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$count = $this->db->count('on_links',[ 'id' => $id]); |
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//如果id不存在 |
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if( (empty($id)) || ($count == false) ) { |
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$this->err_msg(-1010,'link id not exists!'); |
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} |
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//合并数据 |
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$data = [ |
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'fid' => $fid, |
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'title' => $title, |
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'url' => $url, |
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'description' => $description, |
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'up_time' => time(), |
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'weight' => $weight, |
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'property' => $property |
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]; |
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//插入数据库 |
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$re = $this->db->update('on_links',$data,[ 'id' => $id]); |
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//返回影响行数 |
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$row = $re->rowCount(); |
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//如果为真 |
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if( $row ){ |
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$id = $this->db->id(); |
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$data = [ |
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'code' => 0, |
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'msg' => 'successful' |
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]; |
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exit(json_encode($data)); |
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} |
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//如果插入失败 |
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else{ |
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$this->err_msg(-1011,'The URL already exists!'); |
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} |
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} |
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/** |
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* 删除链接 |
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*/ |
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public function del_link($token,$id){ |
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//验证token是否合法 |
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$this->auth($token); |
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//查询ID是否存在 |
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$count = $this->db->count('on_links',[ 'id' => $id]); |
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//如果id不存在 |
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if( (empty($id)) || ($count == false) ) { |
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$this->err_msg(-1010,'link id not exists!'); |
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} |
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else{ |
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$re = $this->db->delete('on_links',[ 'id' => $id] ); |
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if($re) { |
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$data = [ |
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'code' => 0, |
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'msg' => 'successful' |
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]; |
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exit(json_encode($data)); |
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} |
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else{ |
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$this->err_msg(-1010,'link id not exists!'); |
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} |
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} |
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} |
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/** |
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* 验证链接合法性 |
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*/ |
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protected function check_link($fid,$title,$url){ |
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//如果父及（分类）ID不存在 |
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if( empty($fid )) { |
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$this->err_msg(-1007,'The category id(fid) not exist!'); |
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} |
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//如果父及ID不存在数据库中 |
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//验证分类目录是否存在 |
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$count = $this->db->count("on_categorys", [ |
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"id" => $fid |
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]); |
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if ( empty($count) ){ |
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$this->err_msg(-1007,'The category not exist!'); |
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} |
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//如果链接标题为空 |
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if( empty($title) ){ |
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$this->err_msg(-1008,'The title cannot be empty!'); |
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} |
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//链接不能为空 |
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if( empty($url) ){ |
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$this->err_msg(-1009,'URL cannot be empty!'); |
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} |
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//链接不合法 |
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if( !filter_var($url, FILTER_VALIDATE_URL) ) { |
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$this->err_msg(-1010,'URL is not valid!'); |
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} |
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return true; |
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} |
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/** |
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* 查询分类目录 |
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*/ |
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public function category_list($page,$limit){ |
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$offset = ($page - 1) * $limit; |
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//如果成功登录，则查询所有 |
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if( $this->is_login() ){ |
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$sql = "SELECT * FROM on_categorys ORDER BY weight DESC,id DESC LIMIT {$limit} OFFSET {$offset}"; |
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} |
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else{ |
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$sql = "SELECT * FROM on_categorys WHERE property = 0 ORDER BY weight DESC,id DESC LIMIT {$limit} OFFSET {$offset}"; |
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} |
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//统计总数 |
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$count = $this->db->count('on_categorys','*'); |
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//原生查询 |
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$datas = $this->db->query($sql)->fetchAll(); |
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$datas = [ |
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'code' => 0, |
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'msg' => '', |
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'count' => $count, |
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'data' => $datas |
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]; |
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exit(json_encode($datas)); |
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} |
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/** |
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* 查询链接 |
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*/ |
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public function link_list($page,$limit,$token = ''){ |
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$offset = ($page - 1) * $limit; |
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//如果成功登录，但token为空 |
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if( ($this->is_login()) && (empty($token)) ){ |
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//统计总数 |
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$count = $this->db->count('on_links','*'); |
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$sql = "SELECT *,(SELECT name FROM on_categorys WHERE id = on_links.fid) AS category_name FROM on_links ORDER BY weight DESC,id DESC LIMIT {$limit} OFFSET {$offset}"; |
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} |
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//如果token验证通过 |
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elseif( (!empty($token)) && ($this->auth($token)) ) { |
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//统计总数 |
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$count = $this->db->count('on_links','*'); |
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$sql = "SELECT *,(SELECT name FROM on_categorys WHERE id = on_links.fid) AS category_name FROM on_links ORDER BY weight DESC,id DESC LIMIT {$limit} OFFSET {$offset}"; |
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} |
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else{ |
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//统计总数 |
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$count = $this->db->count('on_links','*',[ 'property' => 0 ]); |
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$sql = "SELECT *,(SELECT name FROM on_categorys WHERE id = on_links.fid) AS category_name FROM on_links WHERE property = 0 ORDER BY weight DESC,id DESC LIMIT {$limit} OFFSET {$offset}"; |
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} |
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//原生查询 |
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$datas = $this->db->query($sql)->fetchAll(); |
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$datas = [ |
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'code' => 0, |
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'msg' => '', |
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'count' => $count, |
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'data' => $datas |
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]; |
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exit(json_encode($datas)); |
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} |
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/** |
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* 验证是否登录 |
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*/ |
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protected function is_login(){ |
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$key = md5(USER.PASSWORD.$this->getIP().'onenav'); |
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//获取session |
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$session = $_COOKIE['key']; |
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//如果已经成功登录 |
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if($session == $key) { |
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return true; |
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} |
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else{ |
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return false; |
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} |
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} |
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/** |
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* 获取链接信息 |
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*/ |
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public function get_link_info($token,$url){ |
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$this->auth($token); |
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//检查链接是否合法 |
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//链接不合法 |
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if( !filter_var($url, FILTER_VALIDATE_URL) ) { |
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$this->err_msg(-1010,'URL is not valid!'); |
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} |
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//获取网站标题 |
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$c = curl_init(); |
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curl_setopt($c, CURLOPT_URL, $url); |
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curl_setopt($c, CURLOPT_RETURNTRANSFER, 1); |
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curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false); |
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curl_setopt($c, CURLOPT_SSL_VERIFYHOST, false); |
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//设置超时时间 |
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curl_setopt($c , CURLOPT_TIMEOUT, 10); |
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$data = curl_exec($c); |
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curl_close($c); |
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$pos = strpos($data,'utf-8'); |
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if($pos===false){$data = iconv("gbk","utf-8",$data);} |
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preg_match("/<title>(.*)<\/title>/i",$data, $title); |
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$link['title'] = $title[1]; |
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//获取网站描述 |
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$tags = get_meta_tags($url); |
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$link['description'] = $tags['description']; |
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$data = [ |
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'code' => 0, |
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'data' => $link |
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]; |
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exit(json_encode($data)); |
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} |
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/** |
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* 获取IP |
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*/ |
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//获取访客IP |
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protected function getIP() { |
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if (getenv('HTTP_CLIENT_IP')) { |
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$ip = getenv('HTTP_CLIENT_IP'); |
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} |
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elseif (getenv('HTTP_X_FORWARDED_FOR')) { |
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$ip = getenv('HTTP_X_FORWARDED_FOR'); |
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} |
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elseif (getenv('HTTP_X_FORWARDED')) { |
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$ip = getenv('HTTP_X_FORWARDED'); |
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} |
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elseif (getenv('HTTP_FORWARDED_FOR')) { |
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$ip = getenv('HTTP_FORWARDED_FOR'); |
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} |
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elseif (getenv('HTTP_FORWARDED')) { |
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$ip = getenv('HTTP_FORWARDED'); |
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} |
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else { |
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$ip = $_SERVER['REMOTE_ADDR']; |
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} |
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return $ip; |
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} |
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// |
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} |
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