How to get the target file name from an URL

[FFCookie]

By manipulating parts of a URL , an attacker can cause a web server deliver web pages that are not supposed to have access. In fact, websites are dynamic parameters most past through the URL as follows:
http://mysite/forum/index.php3?cat=2
The data in the URL are automatically created by the site during a normal browsing a user simply click on ties offered by the website. I want to know that how to get the target file name from an URL? Any idea.

[MindSpace]

If the designer did not anticipate this possibility , the attacker can potentially gain access to an area normally protected. Moreover , the attacker can cause the site to handle a case unexpected , for example:
http://mysite/forum/index.php3?cat =***********
In the case above , if the site designer has not provided where the data is not a number, the site can enter a state and not expected to reveal information in an error message .

[Zecho]

The URL (Uniform Resource Locator ) of a web application is the vector to indicate the requested resource . This is a string ASCII printable which is divided into five parts :
* The name of protocol: that is to say, somehow the language used to communicate on the network. The protocol most widely used is HTTP (Hypertext Transfer Protocol) , the protocol for exchanging formatted Web pages HTML. Many other protocols are used , however ( FTP , news, mailto , etc. ).
* Username and password : allows you to specify parameters for access to a secure server . This option is not recommended because the password travels in plain text in the URL>

[opaper]

The Hyperlinks (anchor) are elements of an HTML page ( highlighted in the case of text) that enables users to navigate to a new address when clicked . These are the hypertext links for linking Web pages together . They afford the opportunity to browse:
* to another location in the document
* to an HTML file located at a different location on the machine that hosts the page
* to another machine
The main attribute of anchors is href. It is written as follows :

<a href="Adresse or URL"> .. </ A>

[Reegan]

An absolute URL is used to indicate how to access a resource independently of any context where it can be specified or transmitted. It begins with an indication of a representation scheme (specific communication protocol used to access this resource), followed by all the parameters for locating the network service hosting the resource , and allows to specify this service on behalf of a resource to treat, transmit data processing, routing and retrieval of data , then specify how much of that may result will be used.

[absolute55]

The protocols using a hierarchical path allow the use of relative URLs . A relative URL does not contain any protocol or domain name . These are derived from the URL of the resource containing the relative URL. Relative URLs are frequently used for Links within one website. If the document URL contains the relative URL NavigatorThis corresponds. Relative URLs are directly inspired by the syntax of the file systems Unix. The use of relative URLs allows you to copy an entire website on another webserver without changing the URL.

[kissu]

There is Quiet a system known as "Sessions" in PHP which specifically looks up the period and examines the source of the url been generated, if you are inside a particular session, then you are given accessed to the content the url is pointing to, otherwise just copy-pasting or mods to the url dosen't works !