Instagram API使用PHP检索代码 [英] Instagram API retrieve the code using PHP

问题描述

我尝试使用Instagram API，但这确实不容易.

I try to use the Instagram API but it's really not easy.

根据API文档，必须获取代码才能获取访问令牌，然后向Instagram API发出请求.

According to the API documentation, a code must be retrieved in order to get an access token and then make requests to Instagram API.

但是经过几次尝试，我没有成功.

But after few try, I don't succeed.

我已经在 https://www.instagram.com/developer 中对配置进行了很好的配置.

I already well-configured the settings in https://www.instagram.com/developer

我用curl调用了URL api.instagram.com/oauth/authorize/?client_id=[CLIENT_ID]&redirect_uri=[REDIRECT_URI]&response_type=code，但是没有带代码的重定向uri.

I call the url api.instagram.com/oauth/authorize/?client_id=[CLIENT_ID]&redirect_uri=[REDIRECT_URI]&response_type=code with curl, but I don't have the redirect uri with the code in response.

你能帮我吗;)！

推荐答案

我已经编写了这段代码，希望它没有错误，但是我只是按照您的需要将它用于用例.
这是代码，我将在下面解释此代码的工作原理.

I've made this code, I hope it doesnt have error, but i've just made it for usecase like you wanted
Here is the code, I'll explain it below how this code works.

$authorization_url = "https://api.instagram.com/oauth/authorize/?client_id=".$instagram_client_id."&redirect_uri=".$your_website_redirect_uri."&response_type=code";
$username='ig_username';
$password='ig_password';
$_defaultHeaders = array(
        'User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0',
        'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
        'Accept-Language: en-US,en;q=0.5',
        'Accept-Encoding: ',
        'Connection: keep-alive',
        'Upgrade-Insecure-Requests: 1',
        'Cache-Control: max-age=0'
    );
$ch  = curl_init();
    $cookie='/application/'.strtoupper(VERSI)."instagram_cookie/instagram.txt";
            curl_setopt( $ch, CURLOPT_POST, 0 );
            curl_setopt( $ch, CURLOPT_HTTPGET, 1 );
            if($this->token!==null){
                array_push($this->_defaultHeaders,"Authorization: ".$this->token);   
            }
            curl_setopt( $ch, CURLOPT_HTTPHEADER, $this->_defaultHeaders);
            curl_setopt( $ch, CURLOPT_HEADER, true);
            curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false );
            curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
            curl_setopt( $ch, CURLOPT_COOKIEFILE,getcwd().$cookie );
            curl_setopt( $ch, CURLOPT_COOKIEJAR, getcwd().$cookie );
            curl_setopt($this->curlHandle,CURLOPT_URL,$url);
            curl_setopt($this->curlHandle,CURLOPT_FOLLOWLOCATION,true);

            $result = curl_exec($this->curlHandle);
            $redirect_uri = curl_getinfo($this->curlHandle, CURLINFO_EFFECTIVE_URL);
            $form = explode('login-form',$result)[1];
        $form = explode("action=\"",$form)[1];
//        vd('asd',$form);
        $action = substr($form,0,strpos($form,"\""));
//        vd('action',$action);
        $csrfmiddlewaretoken = explode("csrfmiddlewaretoken\" value=\"",$form);
        $csrfmiddlewaretoken = substr($csrfmiddlewaretoken[1],0,strpos($csrfmiddlewaretoken[1],"\""));
        //finish getting parameter

        $post_param['csrfmiddlewaretoken']=$csrfmiddlewaretoken;
        $post_param['username']=$username;
        $post_param['password']=$password;
//format instagram cookie from vaha's answer https://stackoverflow.com/questions/26003063/instagram-login-programatically
    preg_match_all('/^Set-Cookie:\s*([^;]*)/mi', $result, $matches);

    $cookieFileContent = '';

    foreach($matches[1] as $item)
    {
        $cookieFileContent .= "$item; ";
    }

    $cookieFileContent = rtrim($cookieFileContent, '; ');
    $cookieFileContent = str_replace('sessionid=; ', '', $cookieFileContent);
    $cookie=getcwd().'/application/'.strtoupper(VERSI)."instagram_cookie/instagram.txt";
    $oldContent = file_get_contents($cookie);
    $oldContArr = explode("\n", $oldContent);
    if(count($oldContArr))
    {
        foreach($oldContArr as $k => $line)
        {
            if(strstr($line, '# '))
            {
                unset($oldContArr[$k]);
            }
        }

        $newContent = implode("\n", $oldContArr);
        $newContent = trim($newContent, "\n");
        file_put_contents(
            $cookie,
            $newContent
        );
    }


    // end format
    $useragent = "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0";
    $arrSetHeaders = array(
        'origin: https://www.instagram.com',
        'authority: www.instagram.com',
        'upgrade-insecure-requests: 1',
        'Host: www.instagram.com',
        "User-Agent: $useragent",
        'content-type: application/x-www-form-urlencoded',
        'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
        'Accept-Language: en-US,en;q=0.5',
        'Accept-Encoding: deflate, br',
        "Referer: $redirect_uri",
        "Cookie: $cookieFileContent",
        'Connection: keep-alive',
        'cache-control: max-age=0',
    );

    $ch  = curl_init();
    curl_setopt($ch, CURLOPT_COOKIEJAR, dirname(__FILE__)."/".$cookie);
    curl_setopt($ch, CURLOPT_COOKIEFILE, dirname(__FILE__)."/".$cookie);
    curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $arrSetHeaders);
    curl_setopt($ch, CURLOPT_URL, $this->base_url.$action);
    curl_setopt($ch, CURLOPT_REFERER, $redirect_uri);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_param));

    sleep(5);
    $page = curl_exec($ch);


    preg_match_all('/^Set-Cookie:\s*([^;]*)/mi', $page, $matches);
    $cookies = array();
    foreach($matches[1] as $item) {
        parse_str($item, $cookie1);
        $cookies = array_merge($cookies, $cookie1);
    }
var_dump($page);

第1步: 我们需要先进入登录页面.
我们可以使用curl get来访问它，并将CURLOPT_FOLLOWLOCATION设置为true，以便将我们重定向到登录页面，我们访问我们的应用程序instagram授权url

Step 1: We need to get to the login page first.
We can access it using curl get, with CURLOPT_FOLLOWLOCATION set to true so that we will be redirected to the login page, we access our application instagram authorization url

$authorization_url = "https://api.instagram.com/oauth/authorize/?client_id=".$instagram_client_id."&redirect_uri=".$your_website_redirect_uri."&response_type=code";
$username='ig_username';

这是来自Instagram文档的第一步，此处
现在，第一个get curl的结果是我们有一个响应页面及其页面uri，我们将它们存储在$ redirect_uri中，当我们执行http post进行登录时，必须将其存储在引用标头中.

得到login_page的结果后，我们将需要格式化cookie，我知道这一点，并使用vaha的一些代码在这里回答

This is step one from this Instagram documentation here
Now the result of the first get curl we have the response page and its page uri that we store at $redirect_uri, this must be needed and placed on referer header when we do http post for login.

After get the result of login_page, we will need to format the cookie, I know this and use some code from vaha answer here vaha's answer

Step 2: After we get the login_page we will extract the action url , extract csrfmiddlewaretoken hidden input value.
After we get it, we will do a post parameter to login.
We must set the redirect uri, and dont forget the cookiejar, and other header setting like above code.
After success sending the parameter post for login, Instagram will call your redirect uri, for example https://www.yourwebsite.com/save_instagram_code at there you must use or save your instagram code to get the access token using curl again ( i only explain how to get the code :D)
I make this in a short time, I'll update the code which I have tested and work if i have time, Feel free to suggest an edit of workable code or a better explanation.

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