×ðÁú¿­Ê±¹ÙÍøµÇ¼

ÏàʶLinuxЧÀÍÆ÷ÉϵÄWeb½Ó¿ÚÎó²îÓë¹¥»÷¡£

ÏàʶLinuxЧÀÍÆ÷ÉϵÄWeb½Ó¿ÚÎó²îÓë¹¥»÷

Ëæ×Å»¥ÁªÍøµÄ¿ìËÙÉú³¤£¬WebÓ¦ÓóÌÐòÒѾ­³ÉΪÆóÒµºÍСÎÒ˽ÈËÖ÷ÒªµÄÐÅÏ¢´«ÊäºÍ½»»¥·½·¨¡£¶øLinuxЧÀÍÆ÷×÷ΪWebÓ¦ÓÃ×î³£¼ûµÄÍйÜƽ̨֮һ£¬Ò²³ÉΪºÚ¿Í¹¥»÷µÄÖصãÄ¿µÄ¡£ÔÚLinuxЧÀÍÆ÷ÉÏ£¬Web½Ó¿ÚÎó²îºÍ¹¥»÷ÊÇ×î³£¼ûµÄÇå¾²ÎÊÌâÖ®Ò»¡£±¾ÎĽ«Ì½ÌÖ¼¸ÖÖ³£¼ûµÄWeb½Ó¿ÚÎó²îºÍ¹¥»÷·½·¨£¬²¢¸ø³öÏìÓ¦µÄ´úÂëʾÀý¡£

Ò»¡¢SQL×¢Èë¹¥»÷

SQL×¢ÈëÊÇ×î³£¼ûµÄWeb½Ó¿ÚÎó²îÖ®Ò»¡£ºÚ¿Íͨ¹ýÔÚÓû§Ìá½»µÄÊý¾ÝÖÐ×¢ÈëÌØÊâµÄSQLÓï¾ä£¬´Ó¶ø¿ØÖÆÊý¾Ý¿âÖ´ÐзÇÊÚȨµÄ²Ù×÷£¬½ø¶ø»ñÈ¡¡¢Ð޸Ļòɾ³ýÃô¸ÐÊý¾Ý¡£ÒÔÏÂÊÇÒ»¸ö¼òÆӵĴúÂëʾÀý£º

import pymysql

def login(username, password):
    db = pymysql.connect("localhost", "root", "password", "database")
    cursor = db.cursor()
    
    sql = "SELECT * FROM users WHERE username = '%s' AND password = '%s'" % (username, password)
    cursor.execute(sql)
    
    data = cursor.fetchone()
    db.close()
    
    return data

µÇ¼ºó¸´ÖÆ

ÉÏÊö´úÂëÖУ¬ÎüÊÕµ½µÄusernameºÍpasswordÖ±½ÓÒÔ×Ö·û´®Æ´½ÓµÄ·½·¨½á¹¹ÁËÒ»ÌõSQLÅÌÎÊÓï¾ä¡£ÕâÑùµÄ´úÂëÈÝÒ×Êܵ½SQL×¢Èë¹¥»÷£¬ºÚ¿Í¿ÉÒÔͨ¹ýÔÚusername»òpasswordÖвåÈë¶ñÒâ´úÂëÀ´ÈƹýµÇ¼ÑéÖ¤¡£

Ϊ×èÖ¹´ËÀ๥»÷£¬Ó¦¸ÃʹÓòÎÊý»¯ÅÌÎÊ»òÕßORM¿ò¼Ü£¬È·±£ÊäÈëÊý¾Ý»ñµÃ׼ȷµÄתÒåºÍ´¦Àí¡£Ð޸ĴúÂëÈçÏ£º

import pymysql

def login(username, password):
    db = pymysql.connect("localhost", "root", "password", "database")
    cursor = db.cursor()
    
    sql = "SELECT * FROM users WHERE username = %s AND password = %s"
    cursor.execute(sql, (username, password))
    
    data = cursor.fetchone()
    db.close()
    
    return data

µÇ¼ºó¸´ÖÆ

¶þ¡¢ÎļþÉÏ´«Îó²î

ÎļþÉÏ´«Îó²îÊÇָδ¶ÔÉÏ´«Îļþ¾ÙÐÐÊʵ±µÄУÑéºÍ¹ýÂË£¬µ¼ÖºڿÍÉÏ´«¶ñÒâÎļþ½øÈëЧÀÍÆ÷¡£ºÚ¿Í¿ÉÒÔͨ¹ýÉÏ´«¶ñÒâµÄWeb shellÀ´»ñȡЧÀÍÆ÷ȨÏÞ£¬½ø¶øÖ´ÐÐí§ÒâµÄ²Ù×÷£¬ÉõÖÁ¿ØÖÆÕû¸öЧÀÍÆ÷¡£ÒÔÏÂÊÇÒ»¸ö¼òÆӵĴúÂëʾÀý£º

<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));

// ¼ì²éÎļþÀàÐÍ
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
    echo "Ö»ÔÊÐíÉÏ´«Í¼Æ¬Îļþ.";
    $uploadOk = 0;
}

// ¼ì²éÎļþ¾Þϸ
if ($_FILES["fileToUpload"]["size"] > 500000) {
    echo "ǸØÆ£¬ÎļþÌ«´ó.";
    $uploadOk = 0;
}

// ÉúÑÄÉÏ´«Îļþ
if ($uploadOk == 0) {
    echo "ǸØÆ£¬ÎļþδÉÏ´«.";
} else {
    if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
        echo "ÎļþÉÏ´«ÀÖ³É.";
    } else {
        echo "ǸØÆ£¬ÎļþÉÏ´«Ê§°Ü.";
    }
}
?>

µÇ¼ºó¸´ÖÆ

ÉÏÊö´úÂëÖУ¬Î´¶ÔÉÏ´«ÎļþµÄÀàÐ;ÙÐÐ׼ȷÅжϺ͹ýÂË£¬ºÚ¿Í¿ÉÒÔͨ¹ýÐÞ¸ÄÎļþÀàÐÍÈƹýÏÞÖÆ£¬²¢ÉÏ´«¶ñÒâÎļþ¡£Îª×èÖ¹´ËÀ๥»÷£¬Ó¦¸Ã¶ÔÉÏ´«Îļþ¾ÙÐÐ׼ȷµÄÑéÖ¤ºÍ¹ýÂË£¬ÏÞÖÆÔÊÐíÉÏ´«µÄÎļþÀàÐͺ;Þϸ¡£

Èý¡¢¿çÕ¾¾ç±¾¹¥»÷

¿çÕ¾¾ç±¾¹¥»÷£¨Cross-Site Scripting, XSS£©ÊÇÖ¸ºÚ¿Íͨ¹ýÔÚWebÒ³ÃæÖÐ×¢Èë¶ñÒâ¾ç±¾£¬´Ó¶ø»ñµÃÓû§µÄСÎÒ˽ÈËÐÅÏ¢»ò¾ÙÐÐÆäËû²»·¨²Ù×÷¡£ÒÔÏÂÊÇÒ»¸ö¼òÆӵĴúÂëʾÀý£º

<?php
$user_input = $_GET['input'];
echo "<p>" . $user_input . "</p>";
?>

µÇ¼ºó¸´ÖÆ

ÉÏÊö´úÂëÖУ¬Ö±½ÓÊä³öÁËÓû§ÊäÈëµÄÄÚÈÝ£¬Ã»ÓжÔÓû§ÊäÈë¾ÙÐд¦ÀíºÍ¹ýÂË£¬ºÚ¿Í¿ÉÒÔͨ¹ý½á¹¹¶ñÒâ½ÅÔ­À´ÊµÏÖXSS¹¥»÷¡£Îª×èÖ¹´ËÀ๥»÷£¬Ó¦¸Ã¶ÔÓû§µÄÊäÈë¾ÙÐÐ׼ȷµÄ´¦ÀíºÍ¹ýÂË£¬Ê¹ÓÃתÒ庯Êý»òHTML¹ýÂËÆ÷¡£

±¾ÎÄÏÈÈÝÁËLinuxЧÀÍÆ÷Éϳ£¼ûµÄWeb½Ó¿ÚÎó²îºÍ¹¥»÷·½·¨£¬²¢¸ø³öÏìÓ¦µÄ´úÂëʾÀý¡£Òª°ü¹ÜWebÓ¦ÓõÄÇå¾²£¬¿ª·¢Ö°Ô±Ó¦¸ÃÊìϤµ½ÕâЩÎó²îµÄ±£´æ£¬²¢½ÓÄÉÏìÓ¦µÄ·À»¤²½·¥À´ÌáÉýЧÀÍÆ÷µÄÇå¾²ÐÔ¡£

ÒÔÉϾÍÊÇÏàʶLinuxЧÀÍÆ÷ÉϵÄWeb½Ó¿ÚÎó²îÓë¹¥»÷¡£µÄÏêϸÄÚÈÝ£¬¸ü¶àÇë¹Ø×¢±¾ÍøÄÚÆäËüÏà¹ØÎÄÕ£¡

ÃâÔð˵Ã÷£ºÒÔÉÏչʾÄÚÈÝȪԴÓÚÏàÖúýÌå¡¢ÆóÒµ»ú¹¹¡¢ÍøÓÑÌṩ»òÍøÂçÍøÂçÕûÀí£¬°æȨÕùÒéÓë±¾Õ¾Î޹أ¬ÎÄÕÂÉæ¼°¿´·¨Óë¿´·¨²»´ú±í×ðÁú¿­Ê±¹ÙÍøµÇ¼ÂËÓÍ»úÍø¹Ù·½Ì¬¶È£¬Çë¶ÁÕß½ö×ö²Î¿¼¡£±¾ÎĽӴýתÔØ£¬×ªÔØÇë˵Ã÷À´ÓÉ¡£ÈôÄúÒÔΪ±¾ÎÄÇÖÕ¼ÁËÄúµÄ°æȨÐÅÏ¢£¬»òÄú·¢Ã÷¸ÃÄÚÈÝÓÐÈκÎÉæ¼°ÓÐÎ¥¹«µÂ¡¢Ã°·¸Ö´·¨µÈÎ¥·¨ÐÅÏ¢£¬ÇëÄúÁ¬Ã¦ÁªÏµ×ðÁú¿­Ê±¹ÙÍøµÇ¼ʵʱÐÞÕý»òɾ³ý¡£

Ïà¹ØÐÂÎÅ

ÁªÏµ×ðÁú¿­Ê±¹ÙÍøµÇ¼

18523999891

¿É΢ÐÅÔÚÏß×Éѯ

ÊÂÇéʱ¼ä£ºÖÜÒ»ÖÁÖÜÎ壬9:30-18:30£¬½ÚãåÈÕÐÝÏ¢

QR code
ÍøÕ¾µØͼ