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Class WebSite.Servlet.Server

java.lang.Object
   |
   +----WebSite.Servlet.Server

public final class Server

extends Object

The Server class implements access to WebSite server-related data items. It is a purely static class, and cannot be instantiated.

See Also:

Client, Form, Request, Response, Session

constructURL(String)

Constructs a complete URL for this server, given the URL path portion.

escapeURL(String)

Converts a string into "URL-escaped" format.

fileToURLPath(String)

File path to URL ("reverse") mapping.

getAdminEmail()

Gets the email address of the WebSite server administrator.

getContentType(String)

Get the media content type for the given file name.

getDebugFlag()

Gets the state of WebSite's "back-end debug tracing" option.

getGMTOffset()

Gets the GMT offset in seconds, negative is West of GMT.

getHTTPTimeString()

Get an HTTP format date/time string representing the current time.

getHTTPTimeString(long)

Get an HTTP format date/time string.

getInstPath()

Gets the physical path to the WebSite server installation root.

getName()

Gets the internet (DNS) name of the server.

getPort()

Gets the IP port number of the server.

getProduct()

Gets the Website server product identification and version.

getTempName()

Returns a guaranteed unique temporary filename.

getTempPath()

Gets the physical path of the directory used to store temporary files.

getVariable(String)

Gets a server-internal variable by "CGI" name.

getVersion()

Gets the version of the server API interface.

laterThan(String, String)

Compare times in HTTP date/time string format.

logMessage(String)

Logs a message to the server logfile, and on Windows NT, to the server's application event log.

normalizeURL(String)

Removes redundant or unsafe syntax from a URL path.

unescapeURL(String)

Removes "URL escaping" from a string.

URLToFilePath(String, boolean)

URL to file path mapping.

 public static native String getProduct()

Gets the Website server product identification and version.

 public static native String getVersion()

Gets the version of the server API interface.

 public static native String getName()

Gets the internet (DNS) name of the server. This may be used to manufacture URLs that reference the server. NOTE: If WebSite is running in "multi-homed" mode, this string will contain the DNS name of the identity on which the current HTTP request was received.

 public static native int getPort()

Gets the IP port number of the server. This may be used to manufacture URLs that reference the server. NOTE: This port number will differ depending on whether the HTTP request was received via an SSL connection or not.

 public static native String getAdminEmail()

Gets the email address of the WebSite server administrator. This may be used to build "mailto:" URLs, for example.

 public static native boolean getDebugFlag()

Gets the state of WebSite's "back-end debug tracing" option. This may be used to enable diagnostic features of your Java servlet.

 public static native int getGMTOffset()

Gets the GMT offset in seconds, negative is West of GMT. For example, the GMT offset for US Pacific Standard Time (PST, 8hr west) is -28800.

 public static native String getTempPath()

Gets the physical path of the directory used to store temporary files. You may use this as known existing directory in which to create your temporary files.

 public static native String getTempName()

Returns a guaranteed unique temporary filename. You can use this in combination with the temp directory returned from getTempPath() to construct (e.g.) a File object.

 public static native String getInstPath()

Gets the physical path to the WebSite server installation root. This is the directory in which httpd32.exe is stored.

 public static native void logMessage(String msg)

Logs a message to the server logfile, and on Windows NT, to the server's application event log.

 public static native String getVariable(String name)

Gets a server-internal variable by "CGI" name. This method is provided for users who are migrating from Microsoft ISAPI or Standard CGI to WebSite servlets. It simply provides a way to access request, response, client, and server variables using CGI-style "environment variable" names. This is WebSite's WSAPI superset of the variables supported by ISAPI and most CGI interfaces. Compatibility names have been provided as well. Also note that the names used here are the "NCSA" style names, for maximum compatility with ported applications. Name matching is caseless.

Supported Variables

Variable Name	Description
Server Information
DEBUG_MODE	If WebSite's API/CGI tracing switch is on, this is "YES", otherwise it is "NO"
DOCUMENT_ROOT	The physical directory path corresponding to the URL "/" for the current request. May vary if multi-homing is in use.
GATEWAY_INTERFACE	The name and version of the gateway interface (e.g. "WSAPI/1.1")
GMT_OFFSET	Offset of local time from GMT, seconds, negative west of GMT (PST is -28800, 8 hours west)
SERVER_ADMIN	The email address of the server's administrator
SERVER_NAME	The server's current hostname (will vary if multi-homing is used)
SERVER_PORT	The TCP port on which the server received the current request (different ports are used for SSL and "normal").
SERVER_PORT_SECURE	The TCP port used by the server for "secure" (SSL) requests. This is not necessarily the port on which the current request was received.
SERVER_PROTOCOL	The name and version of the server's protocol ("HTTP/1.0")
SERVER_SOFTWARE	The name and version of the server software (e.g. "WebSitePro/2.0")
Client Info
HTTP_ACCEPT	List of media content types (and possibly Q-values) that the client will accept
HTTP_ACCEPT_LANGUAGE	List of languages that the client will accept
HTTP_FROM	Email address of the client user (not currently supported by browsers)
HTTP_KEEP_ALIVE	If the client supports keep-alive, this will be YES, otherwise it will be NO
HTTP_USER_AGENT	The name and version of the client (browser) software
REMOTE_ADDR	The IP address of the remote (client) host or proxy gateway.
REMOTE_HOST	The DNS hostname of the remote (client) host (only if DNS reverse lookup is enabled, else this is identical to REMOTE_ADDR)
Client Authentication	(present only if client sends authentication data)
AUTH_NAME	The realm from which user and group names are taken. WebSite supports multiple realms.
AUTH_TYPE	The authentication type. Currently always "BASIC"
AUTH_USER REMOTE_USER	The username furnished with the authentication data
AUTH_PASSWORD	The password furnished with the authentication data
LOGON_USER	The username of the Windows NT native account under which this API generator is running. The current version of WebSite Pro runs all API extensions under a single native NT account. Not applicable on Windows 95.
Request Info
URL	The decoded URL path for the request, including any "extra path" information. Does not include the host name, nor any query string or URL parameters.
CONTENT_LENGTH	Length in bytes of data sent with the request (e.g., form data)
CONTENT_TYPE	Media content type of data sent with the request (e.g. multipart/form-data) Includes parameters such as boundary strings.
HTTP_REQUEST_RANGE	Range spec(s) sent with request. See current HTTP byte-range spec for details.
PATH_INFO	"Extra" path information from the URL, also known as the "logical path"
PATH_TRANSLATED	The translation of PATH_INFO to a physical path, using the current mapping. May vary if multi-homing is in use.
QUERY_STRING	Data from the URL that follows the "?" in its raw original form
QUERY_STRING_UNESCAPED	Translation of QUERY_STRING from raw to final form (plus to space and URL unescaping)
REQUEST_METHOD	The HTTP method specified with the request (e.g., "GET", "POST")
REFERER HTTP_REFERER	The complete URL of the document that contained the current URL as a hyperlink. This may not be present. Some browsers report inconsistent Referer: information.
SCRIPT_NAME	The URL path of the WSAPI extension, suitable for making self-referencing URLs
HTTP Extra Headers	Any header not assigned to one of the above variables may be accessed by it's header label, or as part of the ALL_HTTP list (provided for ISAPI compatibility)
<extra-header-name>	Returns the value of that header. For example "HTTP_Cookie" will get the cookie string sent with the request. Useful with SHTTP.
ALL_HTTP	All HTTP headers that are not assigned to one of the above variables. These variables are of the form HTTP_ for compatibility with ISAPI. The headers consist of a linefeed-separated list of <name>=<value> pairs.

Parameters:

name - The CGI-style name of the variable to get. See the table above.

 public static native String constructURL(String path)

Constructs a complete URL for this server, given the URL path portion. The returned URL has a scheme of http:// or https:// (if the connection is using SSL). The host name and port number depend on the server/DNS identity and the port via which the current request arrived. If the port number is 80 (or 443 for SSL) the port component is omitted from the URL.

Parameters:

path - The path/name for which the complete URL will be constructed

 public static native String escapeURL(String raw)

Converts a string into "URL-escaped" format. The conversion is done according to the HTTP/1.0 specification. Returns the escaped string.

Parameters:

raw - the string the is to be escaped

See Also:

unescapeURL

 public static native String unescapeURL(String esc)

Removes "URL escaping" from a string. The conversion is done according to the HTTP/1.0 specification. Returns the unescaped string.

Parameters:

esc - the escaped string

See Also:

escapeURL

 public static native String fileToURLPath(String path)

File path to URL ("reverse") mapping. The opposite of URLToFilePath(). Returns a string containing an equivalent URL pathname given a physical file pathname. Note: If the file/URL mappings in effect are such that more than one URL path translates to the given file path, the results are unpredictable. The returned URL will be valid, however it may not be the one you expected.

Parameters:

path - the file pathname to translate

See Also:

URLToFilePath

 public static native String URLToFilePath(String path,
                                           boolean doIndex)

URL to file path mapping. The opposite of fileToURLPath(). Returns a string containing the equivalent physical file pathname given the URL path. Note that the returned pathname contains the native Win32 path separators, and may be a UNC pathname (e.g., \\host\share\....

Directory URL handling:

If the URL translates to a physical directory, this method can optionally resolve the "default document" in that directory. setting the doIndex parameter to true enables this feature. The test to see if the URL resolves to a directory is rigorous (the attributes of the target are checked to see that it is a directory). Next, a search is made, according to the default document settings, for the existence of a default document. If it exists and is usable (readable for documents, executable for API, servlets, CGI, etc.), the default documetn name will be appended to the path.

Parameters:

path - the URL path to translate

doIndex - True to do default document processing

See Also:

fileToURLPath

 public static native String normalizeURL(String path)

Removes redundant or unsafe syntax from a URL path. Returns a string with redundant and/or unsafe syntax removed. Removes multiple repeated /, changes ./ to /, removes things like foo/../ and trailing /. This function is useful when comparing a URL to a reference. If the URL has spurious syntax, the match may fail even though the URL can be translated to a valid file path.

You can compare the returned URL against the original, and if different, redirect the client with the cleaned-up URL path. The server does this on simple GET requests, so for those you will not see spurious syntax in the first place.

Parameters:

path - the URL path to be cleaned up as needed

 public static native String getContentType(String path)

Get the media content type for the given file name. Returns a string containing the media ("MIME") content type, given a file name. The information is taken from WebSite's content-type mapping table, which uses the file's "extension" as the key. If the file name does not contain a period, the "default" content type (usually application/octet-stream) is returned. Note: WebSite uses server-side content types, which always start with wwwserver/.... If you get one of these types back, do not use it in your response.

Parameters:

name - file name for which content-type is desired

 public static native String getHTTPTimeString(long time)

Get an HTTP format date/time string. Returns a string which contains an HTTP compliant date/time string, given the number of milliseconds since January 1, 1970 (the Java epoch). You can use the getHTTPTimeString() variant as a shortcut if you want a date/time string for "now".

The format of the string is in the "recommended" format of HTTP/1.0 and mandated for the Date: header in HTTP/1.1. For example:

    Sun, 06 Nov 1994 08:49:37 GMT

Parameters:

time - milliseconds since January 1, 1970

 public static native String getHTTPTimeString()

Get an HTTP format date/time string representing the current time. Returns a string which contains an HTTP compliant date/time string for the current time.

The format of the string is in the "recommended" format of HTTP/1.0 and mandated for the Date: header in HTTP/1.1. For example:

    Sun, 06 Nov 1994 08:49:37 GMT

 public static native boolean laterThan(String t1,
                                        String t2)

Compare times in HTTP date/time string format. This method is provided so that you can implement your own "If Modified Since" support. You can use the getHttpTimeString(...) methods to get properly formatted string(s).

Parameters:

t1 - HTTP date/time to test

t2 - HTTP date/time to test against

Returns:

only if t1 is later than t2.

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