php实现接口http协议中的Authorization Basic认证、调用

蔚落 2022-12-24 00:36 299阅读 0赞

我们应用API接口实现中通过Authorization Basic认证是比较常见的，下面谈谈使用php实现接口认证、调用的方法。

## 需求场景描述 ##

应用系统API接口，需要通过Authorization Basic认证实现，接口方给客户端相应的密钥才能实现认证，并且客户端也通过Authorization Basic认证的调用来实现通信。

实现方法是，将http协议请求头中压入认证字符串，认证字符串可以以base64编码加密，格式如：Authorization:Basic base64\_encode("$name:$pwd")

## 接口实现Authorization Basic认证 ##

php代码如下：

//一个验证用户的接口范例
    public function validUser(){
          header("Content-Type: text/html; CharSet=UTF-8");
    	  $requestHeaders = apache_request_headers();
    
    	  if (array_key_exists('Authorization', $requestHeaders)) {
    		list($username, $password) = explode(':', base64_decode(explode(' ', $requestHeaders['Authorization'])[1]));
    //记录接口日志
    		$log_content=date("Y-m-d H:i:s ", time())."Authorization username,password=".$username.';'.$password;
    	    file_put_prepend ($log_content, $this->log_file); 
    		//$auth_key=base64_decode(explode(' ', $requestHeaders['Authorization'])[1]);
    		$pwd_en  = md5(md5($password));
    		//$auth_key=$_POST['auth_key']; 
    	    通过数据库或其他方式认证取得用户信息，$userInfo
    			if (!empty($userInfo)) {
    				$this->responCode(200);
    				$this->uname=$username;
    				//echo "登录成功";
    			} else  {
    				$this->responCode(403); exit;
    			}
    	  } else {
    			$this->responCode(401); exit;
    	  }
    }
    private function responCode($code){
    		if (401 === $code) {
    			header("401 Unauthorized");
    			header("WWW-Authenticate: Basic");
    		} elseif (403 === $code) {
    			header("403 Forbidden");
    		}
    		else {
    			header('200 OK');
    		}
    	}

## 调用Authorization Basic认证API接口 ##

public function callValidUser(){
         $url=$base_url.'/validuser';
    	  $name='test';  $pwd='1234'; 
          $headers =array('Authorization:Basic '.base64_encode("$name:$pwd") );
      	  $ch = curl_init();
    	  $postData=array('username'=>$_POST['username']);
    	  curl_setopt($ch, CURLOPT_HEADER, 0);  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
          curl_setopt($ch, CURLOPT_POST, 1);  curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
          //curl_setopt($ch, CURLOPT_HTTPGET, true);	  curl_setopt($ch, CURLINFO_HEADER_OUT, true);	  
    	  curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    	  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, true);//跳过https验证
    	  curl_setopt($ch, CURLOPT_URL, $url);
    	  $response = curl_exec($ch);
    	  // echo curl_getinfo($ch, CURLINFO_HEADER_OUT);
    	  curl_close($ch);
          echo $response;
    }

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