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366 lines
14 KiB
Plaintext
366 lines
14 KiB
Plaintext
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the MozJSHTTP server.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Jeff Walden <jwalden+code@mit.edu> (original author)
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* Robert Sayre <sayrer@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIServerSocket.idl"
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#include "nsIPropertyBag.idl"
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interface nsILocalFile;
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interface nsISimpleEnumerator;
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interface nsIOutputStream;
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interface nsIHttpServer;
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interface nsIHttpRequestHandler;
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interface nsIHttpRequestMetadata;
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interface nsIHttpResponse;
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/**
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* An interface which represents an HTTP server.
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*/
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[scriptable, uuid(5520f79e-ecd5-4c40-843b-97ee13a23747)]
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interface nsIHttpServer : nsIServerSocketListener
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{
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/**
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* Starts up this server, listening upon the given port. This method may
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* throw if the process does not have sufficient privileges to open a socket
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* for the given port, and it also throws when called upon a server which has
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* already been started.
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*
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* @param port
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* the port upon which listening should happen, or -1 if no specific port is
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* desired
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*/
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void start(in long port);
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/**
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* Shuts down this server if it is running; if it is not, this method is a
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* no-op.
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*
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* This method will do its best to return after the socket in this
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* server has been closed and all pending requests have completed being
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* served, but this may or may not actually happen, since in some
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* implementations this may not actually be possible. Implementations which
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* can make this promise should make it explicit in implementation
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* documentation.
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*/
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void stop();
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/**
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* Associates the local file represented by the string file with all requests
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* which match request.
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*
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* @param path
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* the path which is to be mapped to the given file; must begin with "/" and
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* be a valid URI path (i.e., no query string, hash reference, etc.)
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* @param file
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* the file to serve for the given path, or null to remove any mapping that
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* might exist; this file must exist for the lifetime of the server
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*/
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void registerFile(in string path, in nsILocalFile file);
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/**
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* Registers a custom path handler.
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*
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* @param path
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* the path on the server (beginning with a "/") which is to be handled by
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* handler; this path must not include a query string or hash component; it
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* also should usually be canonicalized, since most browsers will do so
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* before sending otherwise-matching requests
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* @param handler
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* an object which will handle any requests for the given path, or null to
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* remove any existing handler; if while the server is running the handler
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* throws an exception while responding to a request, an HTTP 500 response
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* will be returned
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* @throws NS_ERROR_INVALID_ARG
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* if path does not begin with a "/"
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*/
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void registerPathHandler(in string path, in nsIHttpRequestHandler handler);
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/**
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* Registers a custom error page handler.
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*
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* @param code
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* the error code which is to be handled by handler
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* @param handler
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* an object which will handle any requests which generate the given status
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* code, or null to remove any existing handler. If the handler throws an
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* exception during server operation, fallback is to the genericized error
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* handler (the x00 version), then to 500, using a user-defined error
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* handler if one exists or the server default handler otherwise. Fallback
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* will never occur from a user-provided handler that throws to the same
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* handler as provided by the server, e.g. a throwing user 404 falls back to
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* 400, not a server-provided 404 that might not throw.
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* @note
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* If the error handler handles HTTP 500 and throws, behavior is undefined.
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*/
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void registerErrorHandler(in unsigned long code, in nsIHttpRequestHandler handler);
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/**
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* Maps all requests to paths beneath path to the corresponding file beneath
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* dir.
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*
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* @param path
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* the absolute path on the server against which requests will be served
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* from dir (e.g., "/", "/foo/", etc.); must begin and end with a forward
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* slash
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* @param dir
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* the directory to be used to serve all requests for paths underneath path
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* (except those further overridden by another, deeper path registered with
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* another directory); if null, any current mapping for the given path is
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* removed
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* @throws NS_ERROR_INVALID_ARG
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* if dir is non-null and does not exist or is not a directory, or if path
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* does not begin with and end with a forward slash
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*/
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void registerDirectory(in string path, in nsILocalFile dir);
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/**
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* Associates files with the given extension with the given Content-Type when
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* served by this server, in the absence of any file-specific information
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* about the desired Content-Type. If type is empty, removes any extant
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* mapping, if one is present.
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*
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* @throws NS_ERROR_INVALID_ARG
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* if the given type is not a valid header field value, i.e. if it doesn't
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* match the field-value production in RFC 2616
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* @note
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* No syntax checking is done of the given type, beyond ensuring that it is
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* a valid header field value. Behavior when not given a string matching
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* the media-type production in RFC 2616 section 3.7 is undefined.
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* Implementations may choose to define specific behavior for types which do
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* not match the production, such as for CGI functionality.
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* @note
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* Implementations MAY treat type as a trusted argument; users who fail to
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* generate this string from trusted data risk security vulnerabilities.
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*/
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void registerContentType(in string extension, in string type);
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/**
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* Sets the handler used to display the contents of a directory if
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* the directory contains no index page.
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*
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* @param handler
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* an object which will handle any requests for directories which
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* do not contain index pages, or null to reset to the default
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* index handler; if while the server is running the handler
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* throws an exception while responding to a request, an HTTP 500
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* response will be returned. An nsIFile corresponding to the
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* directory is available from the metadata object passed to the
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* handler, under the key "directory".
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*/
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void setIndexHandler(in nsIHttpRequestHandler handler);
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};
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/**
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* A representation of a handler for HTTP requests. The handler is used by
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* calling its .handle method with data for an incoming request; it is the
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* handler's job to use that data as it sees fit to make the desired response.
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*
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* @note
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* This interface uses the [function] attribute, so you can pass a
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* script-defined function with the functionality of handle() to any
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* method which has a nsIHttpRequestHandler parameter, instead of wrapping
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* it in an otherwise empty object.
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*/
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[scriptable, function, uuid(2bbb4db7-d285-42b3-a3ce-142b8cc7e139)]
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interface nsIHttpRequestHandler : nsISupports
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{
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/**
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* Processes the HTTP request represented by metadata and initializes the
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* passed-in response to reflect the correct HTTP response.
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*
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* Note that in some uses of nsIHttpRequestHandler, this method is required to
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* not throw an exception; in the general case, however, this method may throw
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* an exception (causing an HTTP 500 response to occur).
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*
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* @param metadata
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* data representing an HTTP request
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* @param response
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* an initially-empty response which must be modified to reflect the data
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* which should be sent as the response to the request described by metadata
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*/
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void handle(in nsIHttpRequestMetadata metadata, in nsIHttpResponse response);
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};
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/**
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* A representation of the data included in an HTTP request.
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*/
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[scriptable, uuid(3a899b17-b6eb-4333-8ef4-912df454a551)]
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interface nsIHttpRequestMetadata : nsIPropertyBag
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{
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/**
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* The request type for this request (see RFC 2616, section 5.1.1).
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*/
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readonly attribute string method;
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/**
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* The host of the data being requested (e.g. "localhost" for the
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* http://localhost:8080/file resource). Note that the relevant port on the
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* host is specified in this.port.
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*/
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readonly attribute string host;
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/**
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* The port on the server on which the request was received.
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*/
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readonly attribute unsigned long port;
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/**
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* The requested path, without any query string (e.g. "/dir/file.txt"). It is
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* guaranteed to begin with a "/". This string is in the
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*/
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readonly attribute string path;
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/**
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* The URL-encoded query string associated with this request, not including
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* the initial "?".
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*/
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readonly attribute string queryString;
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/**
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* A string containing the HTTP version of the request (i.e., "1.1"). Leading
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* zeros for either component of the version will be omitted. (In other
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* words, if the request contains the version "1.01", this attribute will be
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* "1.1"; see RFC 2616, section 3.1.)
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*/
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readonly attribute string httpVersion;
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/**
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* Returns the value for the header in this request specified by fieldName.
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*
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* @param fieldName
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* the name of the field whose value is to be gotten; note that since HTTP
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* header field names are case-insensitive, this method produces equivalent
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* results for "HeAdER" and "hEADer" as fieldName
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* @returns
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* the field value for the given header; note that this value may be
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* normalized (e.g., leading/trailing whitespace removed from the value [or
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* from the values which make this up, if the header is a comma-separated
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* list of values], whitespace runs compressed to single spaces, etc.)
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* @throws NS_ERROR_INVALID_ARG
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* if fieldName does not constitute a valid header field name
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* @throws NS_ERROR_NOT_AVAILABLE
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* if the given header does not exist in this
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*/
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string getHeader(in string fieldName);
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/**
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* Returns true if a header with the given field name exists in this, false
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* otherwise.
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*
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* @param fieldName
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* the field name whose existence is to be determined in this; note that
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* since HTTP header field names are case-insensitive, this method produces
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* equivalent results for "HeAdER" and "hEADer" as fieldName
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* @throws NS_ERROR_INVALID_ARG
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* if fieldName does not constitute a valid header field name
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*/
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boolean hasHeader(in string fieldName);
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/**
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* An nsISimpleEnumerator of nsISupportsStrings over the names of the headers
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* in this request. The header field names in the enumerator may not
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* necessarily have the same case as they do in the request itself.
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*/
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readonly attribute nsISimpleEnumerator headers;
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// XXX expose request body here!
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};
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/**
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* Represents an HTTP response, as described in RFC 2616, section 6.
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*/
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[scriptable, uuid(a2aaaff7-03bd-43b6-b460-94671e288093)]
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interface nsIHttpResponse : nsISupports
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{
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/**
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* Sets the status line for this. If this method is never called on this, the
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* status line defaults to "HTTP/", followed by the server's default HTTP
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* version (e.g. "1.1"), followed by " 200 OK".
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*
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* @param httpVersion
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* the HTTP version of this, as a string (e.g. "1.1"); if null, the server
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* default is used
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* @param code
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* the numeric HTTP status code for this
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* @param description
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* a human-readable description of code; may be null if no description is
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* desired
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* @throws NS_ERROR_INVALID_ARG
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* if httpVersion is not a valid HTTP version string, statusCode is greater
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* than 999, or description contains invalid characters
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*/
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void setStatusLine(in string httpVersion,
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in unsigned short statusCode,
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in string description);
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/**
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* Sets the specified header in this.
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*
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* @param name
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* the name of the header; must match the field-name production per RFC 2616
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* @param value
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* the value of the header; must match the field-value production per RFC
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* 2616
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* @param merge
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* when true, if the given header already exists in this, the values passed
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* to this function will be merged into the existing header, per RFC 2616
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* header semantics; when false, if the given header already exists in this,
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* it is overwritten with the passed-in values; if the header doesn't exist
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* in this, it is set regardless of the value of this parameter
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* @throws NS_ERROR_INVALID_ARG
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* if name or value is not a valid header component
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*/
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void setHeader(in string name, in string value, in boolean merge);
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/**
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* A stream to which data appearing in the body of this response should be
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* written.
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*/
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readonly attribute nsIOutputStream bodyOutputStream;
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/**
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* Write a string to the response's output stream.
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*
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* @note
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* This method is only guaranteed to work with ASCII data.
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*/
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void write(in string data);
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};
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