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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface nsIProtocolHandler;
+interface nsIChannel;
+interface nsIURI;
+interface nsIFile;
+interface nsIDOMNode;
+interface nsIPrincipal;
+interface nsILoadInfo;
+
+/**
+ * nsIIOService provides a set of network utility functions. This interface
+ * duplicates many of the nsIProtocolHandler methods in a protocol handler
+ * independent way (e.g., NewURI inspects the scheme in order to delegate
+ * creation of the new URI to the appropriate protocol handler). nsIIOService
+ * also provides a set of URL parsing utility functions. These are provided
+ * as a convenience to the programmer and in some cases to improve performance
+ * by eliminating intermediate data structures and interfaces.
+ */
+[scriptable, uuid(4286de5a-b2ea-446f-8f70-e2a461f42694)]
+interface nsIIOService : nsISupports
+{
+ /**
+ * Returns a protocol handler for a given URI scheme.
+ *
+ * @param aScheme the URI scheme
+ * @return reference to corresponding nsIProtocolHandler
+ */
+ nsIProtocolHandler getProtocolHandler(in string aScheme);
+
+ /**
+ * Returns the protocol flags for a given scheme.
+ *
+ * @param aScheme the URI scheme
+ * @return value of corresponding nsIProtocolHandler::protocolFlags
+ */
+ unsigned long getProtocolFlags(in string aScheme);
+
+ /**
+ * This method constructs a new URI by determining the scheme of the
+ * URI spec, and then delegating the construction of the URI to the
+ * protocol handler for that scheme. QueryInterface can be used on
+ * the resulting URI object to obtain a more specific type of URI.
+ *
+ * @see nsIProtocolHandler::newURI
+ */
+ nsIURI newURI(in AUTF8String aSpec,
+ [optional] in string aOriginCharset,
+ [optional] in nsIURI aBaseURI);
+
+ /**
+ * This method constructs a new URI from a nsIFile.
+ *
+ * @param aFile specifies the file path
+ * @return reference to a new nsIURI object
+ *
+ * Note: in the future, for perf reasons we should allow
+ * callers to specify whether this is a file or directory by
+ * splitting this into newDirURI() and newActualFileURI().
+ */
+ nsIURI newFileURI(in nsIFile aFile);
+
+ /**
+ * Creates a channel for a given URI.
+ *
+ * @param aURI
+ * nsIURI from which to make a channel
+ * @param aLoadingNode
+ * @param aLoadingPrincipal
+ * @param aTriggeringPrincipal
+ * @param aSecurityFlags
+ * @param aContentPolicyType
+ * These will be used as values for the nsILoadInfo object on the
+ * created channel. For details, see nsILoadInfo in nsILoadInfo.idl
+ * @return reference to the new nsIChannel object
+ *
+ * Please note, if you provide both a loadingNode and a loadingPrincipal,
+ * then loadingPrincipal must be equal to loadingNode->NodePrincipal().
+ * But less error prone is to just supply a loadingNode.
+ *
+ * Keep in mind that URIs coming from a webpage should *never* use the
+ * systemPrincipal as the loadingPrincipal.
+ */
+ nsIChannel newChannelFromURI2(in nsIURI aURI,
+ in nsIDOMNode aLoadingNode,
+ in nsIPrincipal aLoadingPrincipal,
+ in nsIPrincipal aTriggeringPrincipal,
+ in unsigned long aSecurityFlags,
+ in unsigned long aContentPolicyType);
+
+ /**
+ * Equivalent to newChannelFromURI2(aURI, aLoadingNode, ...)
+ */
+ nsIChannel newChannelFromURIWithLoadInfo(in nsIURI aURI,
+ in nsILoadInfo aLoadInfo);
+
+ /**
+ * Equivalent to newChannelFromURI2(newURI(...))
+ */
+ nsIChannel newChannel2(in AUTF8String aSpec,
+ in string aOriginCharset,
+ in nsIURI aBaseURI,
+ in nsIDOMNode aLoadingNode,
+ in nsIPrincipal aLoadingPrincipal,
+ in nsIPrincipal aTriggeringPrincipal,
+ in unsigned long aSecurityFlags,
+ in unsigned long aContentPolicyType);
+
+ /**
+ * ***** DEPRECATED *****
+ * Please use NewChannelFromURI2()
+ *
+ * Creates a channel for a given URI.
+ *
+ * @param aURI nsIURI from which to make a channel
+ * @return reference to the new nsIChannel object
+ */
+ nsIChannel newChannelFromURI(in nsIURI aURI);
+
+ /**
+ * ***** DEPRECATED *****
+ * Please use newChannel2().
+ *
+ * Equivalent to newChannelFromURI(newURI(...))
+ */
+ nsIChannel newChannel(in AUTF8String aSpec,
+ in string aOriginCharset,
+ in nsIURI aBaseURI);
+
+
+ /**
+ * Returns true if networking is in "offline" mode. When in offline mode,
+ * attempts to access the network will fail (although this does not
+ * necessarily correlate with whether there is actually a network
+ * available -- that's hard to detect without causing the dialer to
+ * come up).
+ *
+ * Changing this fires observer notifications ... see below.
+ */
+ attribute boolean offline;
+
+ /**
+ * Returns false if there are no interfaces for a network request
+ */
+ readonly attribute boolean connectivity;
+
+ /**
+ * Checks if a port number is banned. This involves consulting a list of
+ * unsafe ports, corresponding to network services that may be easily
+ * exploitable. If the given port is considered unsafe, then the protocol
+ * handler (corresponding to aScheme) will be asked whether it wishes to
+ * override the IO service's decision to block the port. This gives the
+ * protocol handler ultimate control over its own security policy while
+ * ensuring reasonable, default protection.
+ *
+ * @see nsIProtocolHandler::allowPort
+ */
+ boolean allowPort(in long aPort, in string aScheme);
+
+ /**
+ * Utility to extract the scheme from a URL string, consistently and
+ * according to spec (see RFC 2396).
+ *
+ * NOTE: Most URL parsing is done via nsIURI, and in fact the scheme
+ * can also be extracted from a URL string via nsIURI. This method
+ * is provided purely as an optimization.
+ *
+ * @param aSpec the URL string to parse
+ * @return URL scheme
+ *
+ * @throws NS_ERROR_MALFORMED_URI if URL string is not of the right form.
+ */
+ ACString extractScheme(in AUTF8String urlString);
+};
+
+%{C++
+/**
+ * We send notifications through nsIObserverService with topic
+ * NS_IOSERVICE_GOING_OFFLINE_TOPIC and data NS_IOSERVICE_OFFLINE
+ * when 'offline' has changed from false to true, and we are about
+ * to shut down network services such as DNS. When those
+ * services have been shut down, we send a notification with
+ * topic NS_IOSERVICE_OFFLINE_STATUS_TOPIC and data
+ * NS_IOSERVICE_OFFLINE.
+ *
+ * When 'offline' changes from true to false, then after
+ * network services have been restarted, we send a notification
+ * with topic NS_IOSERVICE_OFFLINE_STATUS_TOPIC and data
+ * NS_IOSERVICE_ONLINE.
+ */
+#define NS_IOSERVICE_GOING_OFFLINE_TOPIC "network:offline-about-to-go-offline"
+#define NS_IOSERVICE_OFFLINE_STATUS_TOPIC "network:offline-status-changed"
+#define NS_IOSERVICE_OFFLINE "offline"
+#define NS_IOSERVICE_ONLINE "online"
+
+%}
+
+[builtinclass, uuid(6633c0bf-d97a-428f-8ece-cb6a655fb95a)]
+interface nsIIOServiceInternal : nsISupports
+{
+ /**
+ * This is an internal method that should only be called from ContentChild
+ * in order to pass the connectivity state from the chrome process to the
+ * content process. It throws if called outside the content process.
+ */
+ void SetConnectivity(in boolean connectivity);
+
+ /**
+ * An internal method to asynchronously run our notifications that happen
+ * when we wake from sleep
+ */
+ void NotifyWakeup();
+};