<?php
/**
 * 人臉識別測顏值、測臉齡、測相似度微信接口
 * @Created by MOS.Ving.
 * @Author: MOS.Ving
 * @Mail 904679843@qq.com
 * @Date: 2016-01-31
 */
 
define("TOKEN", 'weixin'); //設(shè)置token
 
//FACE++ 參數(shù) 自行到face++官網(wǎng)注冊并創(chuàng)建應用
define("API_KEY", "api_key=填在這里"); //你的face++應用 api_key
define("API_SECRET", "&api_secret=這里也要填");//你的face++應用 api_secret
define("ATTRIBUTE", "&attribute=glass,pose,gender,age,race,smiling");//需要返回的內(nèi)容的參數(shù)
 
define("DETECT_URL", "http://apicn.faceplusplus.com/v2/detection/detect?");//檢測給定圖片(Image)中的所有人臉(Face)的位置和相應的面部屬性api地址
define("LANDMARK_URL", "http://api.faceplusplus.com/detection/landmark?");//檢測給定人臉(Face)相應的面部輪廓，五官等關(guān)鍵點的位置，包括25點和83點兩種模式api地址
define("COMPARE_URL", "https://apicn.faceplusplus.com/v2/recognition/compare?");//計算兩個Face的相似性以及五官相似度api地址
 
define("TYPE","&type=83p");//83點模式
 
 
define("MESSAGE_URL", "");//放回圖文消息被點擊需要跳轉(zhuǎn)的地址，不需要跳轉(zhuǎn)可不填
 
$wechatObj = new wechatCallbackapiTest();
if($_GET['echostr']){
  $wechatObj->valid();
}else{
  $wechatObj->responseMsg();
}
 
class wechatCallbackapiTest{
  public function valid(){
    $echoStr = $_GET["echostr"];
    //valid signature , option
    if($this->checkSignature()){
      echo $echoStr;
      exit;
    }
  }
 
  public function responseMsg(){
    //get post data, May be due to the different environments
    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
 
    //extract post data
    if (!empty($postStr)){
        /* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection,
          the best way is to check the validity of xml by yourself */
        libxml_disable_entity_loader(true);
        $postObj   = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
        $fromUsername = $postObj->FromUserName;
        $toUsername  = $postObj->ToUserName;
        $keyword   = trim($postObj->Content);
        $imgUrl    = $postObj->PicUrl;
        $Event    = $postObj->Event;
        $EventKey   = $postObj->EventKey;
        $MsgType   = $postObj->MsgType;
        $time     = time();
 
        $itemTpl = "<item>
           <Title><![CDATA[%s]]></Title>
           <Description><![CDATA[%s]]></Description>
           <PicUrl><![CDATA[%s]]></PicUrl>
           <Url><![CDATA[%s]]></Url>
           </item>";
 
        if($MsgType == "image"){
          $item_str = sprintf($itemTpl, "顏值報告單", face($imgUrl), $imgUrl, MESSAGE_URL);
 
          $xmlTpl = "<xml>
           <ToUserName><![CDATA[%s]]></ToUserName>
           <FromUserName><![CDATA[%s]]></FromUserName>
           <CreateTime>%s</CreateTime>
           <MsgType><![CDATA[news]]></MsgType>
           <ArticleCount>%s</ArticleCount>
           <Articles>$item_str</Articles>
           </xml>";
          $resultStr = sprintf($xmlTpl, $fromUsername, $toUsername, $time, 1);
          echo $resultStr;
        }
        
    }else {
      echo "";
      exit;
    }
  }
     
  private function checkSignature(){
    // you must define TOKEN by yourself
    if (!defined("TOKEN")){
      throw new Exception('TOKEN is not defined!');
    }
     
    $signature = $_GET["signature"];
    $timestamp = $_GET["timestamp"];
    $nonce = $_GET["nonce"];
         
    $token = TOKEN;
    $tmpArr = array($token, $timestamp, $nonce);
    // use SORT_STRING rule
    sort($tmpArr, SORT_STRING);
    $tmpStr = implode( $tmpArr );
    $tmpStr = sha1( $tmpStr );
     
    if( $tmpStr == $signature ){
      return true;
    }else{
      return false;
    }
  }
 
}
 
// 調(diào)用人臉識別的API返回識別結(jié)果
function face($imgUrl){
  // face++ 鏈接 
  $jsonStr  =curl_get_contents(DETECT_URL.API_KEY.API_SECRET."&url=".$imgUrl.ATTRIBUTE);
  $replyDic = json_decode($jsonStr,true);
  $faceArray = $replyDic['face'];
   
  $resultStr = "";
     
  for ($i= 0;$i< count($faceArray); $i++){
     
    $resultStr .= "<----第".($i+1)."張臉---->\n";
 
    $tempFace  = $faceArray[$i];
    $faceId   = $tempFace['face_id'];
 
    $tempAttr = $tempFace['attribute'];
    // 年齡：包含年齡分析結(jié)果
    // value的值為一個非負整數(shù)表示估計的年齡, range表示估計年齡的正負區(qū)間
    $tempAge = $tempAttr['age'];
    // 性別：包含性別分析結(jié)果
    // value的值為Male/Female, confidence表示置信度
    $tempGenger = $tempAttr['gender'];
    // 種族：包含人種分析結(jié)果
    // value的值為Asian/White/Black, confidence表示置信度
    $tempRace = $tempAttr['race'];
    // 微笑：包含微笑程度分析結(jié)果
    //value的值為0-100的實數(shù)，越大表示微笑程度越高
    $tempSmiling = $tempAttr['smiling'];
    
    // 返回性別
    $sex=$tempGenger['value'];
    if($sex === "Male") {
      $resultStr .= "性別：男\(zhòng)n";
    } else if($sex === "Female") {
      $resultStr .= "性別：女\n";
    }
 
    //返回年齡
    $maxAge = $tempAge['value'] + ($tempAge['range'])/2;
    $age=ceil($maxAge);
    $resultStr .= "年齡：".$age."歲左右吧~ \n";
 
    //返回種族
    if($tempRace['value'] === "Asian") {
      $resultStr .= "膚色：很健康哦~\n";
    }
    else if($tempRace['value'] === "White") {
      $resultStr .= "膚色：皮膚好白喲！^ 3^\n";
    }
    else if($tempRace['value'] === "Black") {
      $resultStr .= " 膚色：你有點黑？！??！\n";
    }
 
    //返回微笑度
    $smiling = intval($tempSmiling['value']);
    $smile = round($tempSmiling['value'],3);
    $resultStr .= "微笑：".$smile."％\n";
 
    if($count<3){
      //計算顏值
      $yanzhi=getYanZhi($faceId,$smiling);
      $resultStr .= "外貌協(xié)會專家評分：".$yanzhi."分\n\n";
      $resultStr .= "\xe2\x9c\xa8小編想說：\n";
      switch ($yanzhi){
        case $yanzhi>94:
          $resultStr .="這顏值，爆表了！\n";
          break;
        case $yanzhi>87:
          $resultStr .="你這么好看，咋不上天呢！\n";
          break;
        case $yanzhi>82:
          $resultStr .="百看不厭，繼續(xù)加油！\n";
          break;
        case $yanzhi>72:
          $resultStr .="還好，還能看！\n";
          break;
        case $yanzhi>67:
          $resultStr .="哎，只是丑的不明顯！\n";
          break;
        case $yanzhi>62:
          $resultStr .="如果有錢，可以去整整！\n";
          break;
        default:
          $resultStr .="讓我靜靜，你家沒鏡子么？\n";
      }
    }
 
  //圖片中兩個人時，計算相似度
  if(count($faceArray) === 2){ 
    // 獲取face_id 
    $tempFace1 = $faceArray[0]; 
    $tempId1 = $tempFace1['face_id']; 
    $tempFace2 = $faceArray[1]; 
    $tempId2 = $tempFace2['face_id']; 
 
    // face++ 鏈接 
    $jsonStr1 = curl_get_contents(COMPARE_URL.API_KEY.API_SECRET."&face_id2=".$tempId2 ."&face_id1=".$tempId1);  
    $replyDic1 = json_decode($jsonStr1,true); 
 
    //取出相似程度 
    $tempResult = $replyDic1['similarity']; 
     
    $tempSimilarity = $replyDic1['component_similarity']; 
    $tempEye = $tempSimilarity['eye']; 
    $tempEyebrow = $tempSimilarity['eyebrow']; 
    $tempMouth = $tempSimilarity['mouth']; 
    $tempNose = $tempSimilarity['nose']; 
 
    $resultStr .= "<----相似分析---->\n"; 
    $resultStr .= "眼睛：".round($tempEye,3)."％\n"; 
    $resultStr .= "眉毛：".round($tempEyebrow,3)."％\n"; 
    $resultStr .= "嘴巴：".round($tempMouth,3)."％\n"; 
    $resultStr .= "鼻子：".round($tempNose,3)."％\n"; 
     
    $resultStr .= "\n<----匹配結(jié)果---->\n兩人相似程度：".round($tempResult,3)."％\n"; 
 
    if($tempResult>70){
      $resultStr .="哇塞！絕對的夫妻相了！\n";
    }elseif ($tempResult>50){
      $resultStr .="哎喲，長得挺像！你們快點在一起吧！\n";
    }else{
      $resultStr .="0.0 長得不太一樣哦。\n";
    }
   
  } 
 
  //如果沒有檢測到人臉
  if($resultStr === ""){
    $resultStr = "對不起,俺沒有識別出來，請換張正臉照試試=.=";
  }
 
 return $resultStr;
}
 
 
//顏值算法
function getYanZhi($faceId,$smiling){
  $t1=microtime(1);
  $jsonStr = curl_get_contents(LANDMARK_URL.API_KEY.API_SECRET."&face_id=".$faceId.TYPE);
  $t2=microtime(1);
  if(($t2-$t1)>1.5){
    return 75.632;
  }
 
  if ($jsonStr!=false) {
    $replyDic = json_decode($jsonStr,true);
 
    $result = $replyDic['result'];
    $landmarkArry = $result[0];
    $landmark =$landmarkArry['landmark'];
 
    $right_eyebrow_left_corner =$landmark['right_eyebrow_left_corner'];
    $left_eyebrow_right_corner =$landmark['left_eyebrow_right_corner'];
 
    $left_eye_left_corner    =$landmark['left_eye_left_corner'];
    $left_eye_right_corner   =$landmark['left_eye_right_corner'];
 
    $mouth_left_corner     =$landmark['mouth_left_corner'];
    $mouth_right_corner     =$landmark['mouth_right_corner'];
 
    $nose_left         =$landmark['nose_left'];
    $nose_right         =$landmark['nose_right'];
    $nose_contour_lower_middle =$landmark['nose_contour_lower_middle'];
 
    $right_eye_left_corner   =$landmark['right_eye_left_corner'];
    $right_eye_right_corner   =$landmark['right_eye_right_corner'];
 
    $contour_left1       =$landmark['contour_left1'];
    $contour_right1       =$landmark['contour_right1'];
    $contour_chin        =$landmark['contour_chin'];
    $contour_left6       =$landmark['contour_left6'];
    $contour_right6       =$landmark['contour_right6'];
 
    //計算兩眉頭間的距離
    $c1=distance($left_eyebrow_right_corner['x'],$left_eyebrow_right_corner['y'],$right_eyebrow_left_corner['x'],$right_eyebrow_left_corner['y']);
 
    //眉毛之間的中點坐標;
    $c1_x=($right_eyebrow_left_corner['x']-$left_eyebrow_right_corner['x'])/2+$left_eyebrow_right_corner['x'];
    $c1_y=($right_eyebrow_left_corner['y']-$left_eyebrow_right_corner['y'])/2+$left_eyebrow_right_corner['y'];
 
    //眉毛中點到鼻子最低處的距離
    $c2 = distance($nose_contour_lower_middle['x'],$nose_contour_lower_middle['y'],$c1_x,$c1_y);
 
    //眼角之間的距離
    $c3 = distance($left_eye_right_corner['x'],$left_eye_right_corner['y'],$right_eye_left_corner['x'],$right_eye_left_corner['y']);
 
    //鼻子的寬度
    $c4 = distance($nose_left['x'],$nose_left['y'],$nose_right['x'],$nose_right['y']);
 
    //臉的寬度
    $c5 = distance($contour_left1['x'],$contour_left1['y'],$contour_right1['x'],$contour_right1['y']);
 
    //下巴到鼻子下方的高度
    $c6 = distance($contour_chin['x'],$contour_chin['y'],$nose_contour_lower_middle['x'],$nose_contour_lower_middle['y']);
 
    //眼睛的大小
    $c7_left = distance($left_eye_left_corner['x'],$left_eye_left_corner['y'],$left_eye_right_corner['x'],$left_eye_right_corner['y']);
    $c7_right = distance($right_eye_left_corner['x'],$right_eye_left_corner['y'],$right_eye_right_corner['x'],$right_eye_right_corner['y']);
 
    //嘴巴的大小
    $c8 = distance($mouth_left_corner['x'],$mouth_left_corner['y'],$mouth_right_corner['x'],$mouth_right_corner['y']);
 
    //嘴巴處的face大小
    $c9 = distance($contour_left6['x'],$contour_left6['y'],$contour_right6['x'],$contour_right6['y']);
 
    /* 開始計算步驟 */
    $yourmark = 100;
    $mustm = 0;
 
    //眼角距離為臉寬的1/5，
    $mustm += abs(($c3/$c5)*100 - 25);
 
    //鼻子寬度為臉寬的1/5
    $mustm += abs(($c4/$c5)*100 - 25);
 
    //眼睛的寬度，應為同一水平臉部寬度的!/5
    $eyepj = ($c7_left+$c7_right)/2;
    $mustm += abs($eyepj/$c5*100 - 25);
 
    //理想嘴巴寬度應為同一臉部寬度的1/2
    $mustm += abs(($c8/$c9)*100 - 50);
 
 
    //下巴到鼻子下方的高度 == 眉毛中點到鼻子最低處的距離
    $mustm += abs($c6 - $c2);
 
    return round($yourmark-$mustm+$smiling/10,3);
  }else{
    return 60;
  }
 
}
 
//兩點之間的距離
function distance($px1,$py1,$px2,$py2){
  return sqrt(abs(pow($px2 - $px1,2)) + abs(pow($py2 - $py1,2)));
}
 
 
function curl_get_contents($url) {
  $ch = curl_init();
  curl_setopt( $ch , CURLOPT_URL,$url);
  curl_setopt( $ch , CURLOPT_RETURNTRANSFER,1);
  curl_setopt( $ch , CURLOPT_TIMEOUT,1);
  curl_setopt( $ch , CURLOPT_CONNECTTIMEOUT,1.5);
  $result = curl_exec($ch);
  return $result;
}
 
?>