Syntax Request.ServerVariables (server_variable) Parameter Description server_variable Required. The name of the server variable to retrieve Server Variables Variable Description ALL_HTTP Returns all HTTP headers sent by the client. Always prefixed with HTTP_ and capitalized ALL_RAW Returns all headers in raw form APPL_MD_PATH Returns the meta base path for the application for the ISAPI DLL APPL_PHYSICAL_PATH Returns the physical path corresponding to the meta base path AUTH_PASSWORD Returns the value entered in the client's authentication dialog AUTH_TYPE The authentication method that the server uses to validate users AUTH_USER Returns the raw authenticated user name CERT_COOKIE Returns the unique ID for client certificate as a string CERT_FLAGS bit0 is set to 1 if the client certificate is present and bit1 is set to 1 if the cCertification authority of the client certificate is not valid CERT_ISSUER Returns the issuer field of the client certificate CERT_KEYSIZE Returns the number of bits in Secure Sockets Layer connection key size CERT_SECRETKEYSIZE Returns the number of bits in server certificate private key CERT_SERIALNUMBER Returns the serial number field of the client certificate CERT_SERVER_ISSUER Returns the issuer field of the server certificate CERT_SERVER_SUBJECT Returns the subject field of the server certificate CERT_SUBJECT Returns the subject field of the client certificate CONTENT_LENGTH Returns the length of the content as sent by the client CONTENT_TYPE Returns the data type of the content GATEWAY_INTERFACE Returns the revision of the CGI specification used by the server HTTP_ Returns the value stored in the header HeaderName HTTP_ACCEPT Returns the value of the Accept header HTTP_ACCEPT_LANGUAGE Returns a string describing the language to use for displaying content HTTP_COOKIE Returns the cookie string included with the request HTTP_REFERER Returns a string containing the URL of the page that referred the request to the current page using an tag. If the page is redirected, HTTP_REFERER is empty HTTP_USER_AGENT Returns a string describing the browser that sent the request HTTPS Returns ON if the request came in through secure channel or OFF if the request came in through a non-secure channel HTTPS_KEYSIZE Returns the number of bits in Secure Sockets Layer connection key size HTTPS_SECRETKEYSIZE Returns the number of bits in server certificate private key HTTPS_SERVER_ISSUER Returns the issuer field of the server certificate HTTPS_SERVER_SUBJECT Returns the subject field of the server certificate INSTANCE_ID The ID for the IIS instance in text format INSTANCE_META_PATH The meta base path for the instance of IIS that responds to the request LOCAL_ADDR Returns the server address on which the request came in LOGON_USER Returns the Windows account that the user is logged into PATH_INFO Returns extra path information as given by the client PATH_TRANSLATED A translated version of PATH_INFO that takes the path and performs any necessary virtual-to-physical mapping QUERY_STRING Returns the query information stored in the string following the question mark (?) in the HTTP request REMOTE_ADDR Returns the IP address of the remote host making the request REMOTE_HOST Returns the name of the host making the request REMOTE_USER Returns an unmapped user-name string sent in by the user REQUEST_METHOD Returns the method used to make the request SCRIPT_NAME Returns a virtual path to the script being executed SERVER_NAME Returns the server's host name, DNS alias, or IP address as it would appear in self-referencing URLs SERVER_PORT Returns the port number to which the request was sent SERVER_PORT_SECURE Returns a string that contains 0 or 1. If the request is being handled on the secure port, it will be 1. Otherwise, it will be 0 SERVER_PROTOCOL Returns the name and revision of the request information protocol SERVER_SOFTWARE Returns the name and version of the server software that answers the request and runs the gateway URL Returns the base portion of the URL ________________________________________ Examples Example 1 You can loop through all of the server variables like this: <% for each x in Request.ServerVariables response.write(x & " ") next > Example 2 This example demonstrates how to find out the visitor's browser type, IP address, and more:
You are browsing this site with: <%Response.Write(Request.ServerVariables("http_user_agent"))%>
Your IP address is: <%Response.Write(Request.ServerVariables("remote_addr"))%>
The DNS lookup of the IP address is: <%Response.Write(Request.ServerVariables("remote_host"))%>
The method used to call the page: <%Response.Write(Request.ServerVariables("request_method"))%>
The server's domain name: <%Response.Write(Request.ServerVariables("server_name"))%>
The server's port: <%Response.Write(Request.ServerVariables("server_port"))%>
The server's software: <%Response.Write(Request.ServerVariables("server_software"))%>
Properties ASP TotalBytes Property ________________________________________ The TotalBytes property is a read-only property that returns the total number of bytes the client sent in the body of the request. Syntax varbytes=Request.Totalbytes Example The following code sets the variable a equal to the total number of bytes sent in the body of the request: <% dim a a=Request.TotalBytes %> ASP BinaryRead Method ________________________________________ The BinaryRead method is used to retrieve the data sent to the server from the client as part of a POST request. It will store the data in a safe array (an array that stores information about the number of dimensions and the bounds of its dimensions). Note: A call to Request.Form after a call to BinaryRead, and vice-versa, will cause an error. Syntax Request.BinaryRead(count) Parameter Description count Required. Specifies how many bytes to read from the client Examples The following example uses the BinaryRead method to place the content of a request into a safe array: <% dim a,b a=Request.TotalBytes b=Request.BinaryRead(a) %> 3) ASP Application Object A group of ASP files that work together to perform some purpose is called an application. The Application object is used to tie these files together.
