Use php to forge a referer to prevent Image leeching. In short, HTTPReferer is a part of the header. when a browser sends a request to a web server, it usually carries a Referer to tell the server from which page
What is HTTP Referer?In short, HTTP
When a browser sends a request to a web server, it usually carries a Referer to tell the server from which page the link is sent. the server obtains some information for processing, however, this Referer can be forged. let's take a look at the
What is HTTP RefererIn short, the HTTP Referer is part of the header, and when the browser sends the request to the Web server, it usually takes referer to tell the server which page link I took from, and the server can get some information for
When a browser sends a request to a web server, it usually carries a Referer to tell the server from which page the link is sent. the server obtains some information for processing, however, this Referer can be forged. let's take a look at the
What is HTTP RefererIn short, HTTP Referer is part of the header, and when the browser sends a request to the Web server, it usually takes a referer to tell the server where I came from, and the server can get some information for processing. For
When the browser to send a request to the Web server, usually bring referer, tell the server I was from which page chain, the server can get some information for processing, but this referer can be forged, the following look at an example, we will
When the browser sends a request to the Web server, it usually takes a referer to tell the server where I came from, and the server can get some information for processing, but this referer can be forged, look at an example below, you will
Http-referer This variable has become increasingly unreliable, is completely can be forged out of the Dongdong.
The following is a forgery method:
Asp/visual Basic code
Dim http
Set Http=server.createobject ("MSXML2. XMLHTTP ")
PHP cannot obtain Referer for troubleshooting and referer for troubleshooting. PHP cannot obtain Referer troubleshooting. referer troubleshooting test results :? Phpecho Test Source: directly load the page br; echoahreftest_cookie.php enter the page
# only allow access from don.com, the picture may be placed on the page of the Don.com website
Setenvifnocase referer "^http://www.don.com/" Local_ref
# Direct access via address
Setenvif referer "^$" Local_ref
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.