netwerk/base/public/nsIIOService.idl

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "nsISupports.idl"
michael@0 7
michael@0 8 interface nsIProtocolHandler;
michael@0 9 interface nsIChannel;
michael@0 10 interface nsIURI;
michael@0 11 interface nsIFile;
michael@0 12
michael@0 13 /**
michael@0 14 * nsIIOService provides a set of network utility functions. This interface
michael@0 15 * duplicates many of the nsIProtocolHandler methods in a protocol handler
michael@0 16 * independent way (e.g., NewURI inspects the scheme in order to delegate
michael@0 17 * creation of the new URI to the appropriate protocol handler). nsIIOService
michael@0 18 * also provides a set of URL parsing utility functions. These are provided
michael@0 19 * as a convenience to the programmer and in some cases to improve performance
michael@0 20 * by eliminating intermediate data structures and interfaces.
michael@0 21 */
michael@0 22 [scriptable, uuid(bddeda3f-9020-4d12-8c70-984ee9f7935e)]
michael@0 23 interface nsIIOService : nsISupports
michael@0 24 {
michael@0 25 /**
michael@0 26 * Returns a protocol handler for a given URI scheme.
michael@0 27 *
michael@0 28 * @param aScheme the URI scheme
michael@0 29 * @return reference to corresponding nsIProtocolHandler
michael@0 30 */
michael@0 31 nsIProtocolHandler getProtocolHandler(in string aScheme);
michael@0 32
michael@0 33 /**
michael@0 34 * Returns the protocol flags for a given scheme.
michael@0 35 *
michael@0 36 * @param aScheme the URI scheme
michael@0 37 * @return value of corresponding nsIProtocolHandler::protocolFlags
michael@0 38 */
michael@0 39 unsigned long getProtocolFlags(in string aScheme);
michael@0 40
michael@0 41 /**
michael@0 42 * This method constructs a new URI by determining the scheme of the
michael@0 43 * URI spec, and then delegating the construction of the URI to the
michael@0 44 * protocol handler for that scheme. QueryInterface can be used on
michael@0 45 * the resulting URI object to obtain a more specific type of URI.
michael@0 46 *
michael@0 47 * @see nsIProtocolHandler::newURI
michael@0 48 */
michael@0 49 nsIURI newURI(in AUTF8String aSpec,
michael@0 50 in string aOriginCharset,
michael@0 51 in nsIURI aBaseURI);
michael@0 52
michael@0 53 /**
michael@0 54 * This method constructs a new URI from a nsIFile.
michael@0 55 *
michael@0 56 * @param aFile specifies the file path
michael@0 57 * @return reference to a new nsIURI object
michael@0 58 *
michael@0 59 * Note: in the future, for perf reasons we should allow
michael@0 60 * callers to specify whether this is a file or directory by
michael@0 61 * splitting this into newDirURI() and newActualFileURI().
michael@0 62 */
michael@0 63 nsIURI newFileURI(in nsIFile aFile);
michael@0 64
michael@0 65 /**
michael@0 66 * Creates a channel for a given URI.
michael@0 67 *
michael@0 68 * @param aURI nsIURI from which to make a channel
michael@0 69 * @return reference to the new nsIChannel object
michael@0 70 */
michael@0 71 nsIChannel newChannelFromURI(in nsIURI aURI);
michael@0 72
michael@0 73 /**
michael@0 74 * Equivalent to newChannelFromURI(newURI(...))
michael@0 75 */
michael@0 76 nsIChannel newChannel(in AUTF8String aSpec,
michael@0 77 in string aOriginCharset,
michael@0 78 in nsIURI aBaseURI);
michael@0 79
michael@0 80 /**
michael@0 81 * Returns true if networking is in "offline" mode. When in offline mode,
michael@0 82 * attempts to access the network will fail (although this does not
michael@0 83 * necessarily correlate with whether there is actually a network
michael@0 84 * available -- that's hard to detect without causing the dialer to
michael@0 85 * come up).
michael@0 86 *
michael@0 87 * Changing this fires observer notifications ... see below.
michael@0 88 */
michael@0 89 attribute boolean offline;
michael@0 90
michael@0 91 /**
michael@0 92 * Checks if a port number is banned. This involves consulting a list of
michael@0 93 * unsafe ports, corresponding to network services that may be easily
michael@0 94 * exploitable. If the given port is considered unsafe, then the protocol
michael@0 95 * handler (corresponding to aScheme) will be asked whether it wishes to
michael@0 96 * override the IO service's decision to block the port. This gives the
michael@0 97 * protocol handler ultimate control over its own security policy while
michael@0 98 * ensuring reasonable, default protection.
michael@0 99 *
michael@0 100 * @see nsIProtocolHandler::allowPort
michael@0 101 */
michael@0 102 boolean allowPort(in long aPort, in string aScheme);
michael@0 103
michael@0 104 /**
michael@0 105 * Utility to extract the scheme from a URL string, consistently and
michael@0 106 * according to spec (see RFC 2396).
michael@0 107 *
michael@0 108 * NOTE: Most URL parsing is done via nsIURI, and in fact the scheme
michael@0 109 * can also be extracted from a URL string via nsIURI. This method
michael@0 110 * is provided purely as an optimization.
michael@0 111 *
michael@0 112 * @param aSpec the URL string to parse
michael@0 113 * @return URL scheme
michael@0 114 *
michael@0 115 * @throws NS_ERROR_MALFORMED_URI if URL string is not of the right form.
michael@0 116 */
michael@0 117 ACString extractScheme(in AUTF8String urlString);
michael@0 118 };
michael@0 119
michael@0 120 %{C++
michael@0 121 /**
michael@0 122 * We send notifications through nsIObserverService with topic
michael@0 123 * NS_IOSERVICE_GOING_OFFLINE_TOPIC and data NS_IOSERVICE_OFFLINE
michael@0 124 * when 'offline' has changed from false to true, and we are about
michael@0 125 * to shut down network services such as DNS. When those
michael@0 126 * services have been shut down, we send a notification with
michael@0 127 * topic NS_IOSERVICE_OFFLINE_STATUS_TOPIC and data
michael@0 128 * NS_IOSERVICE_OFFLINE.
michael@0 129 *
michael@0 130 * When 'offline' changes from true to false, then after
michael@0 131 * network services have been restarted, we send a notification
michael@0 132 * with topic NS_IOSERVICE_OFFLINE_STATUS_TOPIC and data
michael@0 133 * NS_IOSERVICE_ONLINE.
michael@0 134 */
michael@0 135 #define NS_IOSERVICE_GOING_OFFLINE_TOPIC "network:offline-about-to-go-offline"
michael@0 136 #define NS_IOSERVICE_OFFLINE_STATUS_TOPIC "network:offline-status-changed"
michael@0 137 #define NS_IOSERVICE_OFFLINE "offline"
michael@0 138 #define NS_IOSERVICE_ONLINE "online"
michael@0 139 %}

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