зеркало из https://github.com/mozilla/pjs.git
994 строки
30 KiB
C++
994 строки
30 KiB
C++
/* vim:set ts=2 sw=2 et cindent: */
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/* ***** 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 Mozilla gnome-vfs extension.
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*
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* The Initial Developer of the Original Code is IBM Corporation.
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* Portions created by IBM Corporation are Copyright (C) 2004
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* IBM Corporation. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@meer.net>
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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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// GnomeVFS v2.2.2 is missing G_BEGIN_DECLS in gnome-vfs-module-callback.h
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extern "C" {
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#include <libgnomevfs/gnome-vfs.h>
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#include <libgnomevfs/gnome-vfs-standard-callbacks.h>
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#include <libgnomevfs/gnome-vfs-mime-utils.h>
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}
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#include "nsServiceManagerUtils.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIGenericFactory.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsIPrefService.h"
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#include "nsIPrefBranch2.h"
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#include "nsIObserver.h"
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#include "nsThreadUtils.h"
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#include "nsProxyRelease.h"
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#include "nsIAuthPrompt.h"
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#include "nsIStringBundle.h"
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#include "nsIStandardURL.h"
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#include "nsIURL.h"
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#include "nsMimeTypes.h"
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#include "nsNetUtil.h"
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#include "nsINetUtil.h"
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#include "nsAutoPtr.h"
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#include "nsError.h"
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#include "netCore.h"
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#include "prlog.h"
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#include "prtime.h"
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#include "prprf.h"
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#include "plstr.h"
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#define MOZ_GNOMEVFS_SCHEME "moz-gnomevfs"
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#define MOZ_GNOMEVFS_SUPPORTED_PROTOCOLS "network.gnomevfs.supported-protocols"
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//-----------------------------------------------------------------------------
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// NSPR_LOG_MODULES=gnomevfs:5
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#ifdef PR_LOGGING
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static PRLogModuleInfo *sGnomeVFSLog;
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#define LOG(args) PR_LOG(sGnomeVFSLog, PR_LOG_DEBUG, args)
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#else
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#define LOG(args)
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#endif
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//-----------------------------------------------------------------------------
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static nsresult
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MapGnomeVFSResult(GnomeVFSResult result)
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{
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switch (result)
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{
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case GNOME_VFS_OK: return NS_OK;
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case GNOME_VFS_ERROR_NOT_FOUND: return NS_ERROR_FILE_NOT_FOUND;
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case GNOME_VFS_ERROR_INTERNAL: return NS_ERROR_UNEXPECTED;
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case GNOME_VFS_ERROR_BAD_PARAMETERS: return NS_ERROR_INVALID_ARG;
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case GNOME_VFS_ERROR_NOT_SUPPORTED: return NS_ERROR_NOT_AVAILABLE;
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case GNOME_VFS_ERROR_CORRUPTED_DATA: return NS_ERROR_FILE_CORRUPTED;
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case GNOME_VFS_ERROR_TOO_BIG: return NS_ERROR_FILE_TOO_BIG;
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case GNOME_VFS_ERROR_NO_SPACE: return NS_ERROR_FILE_NO_DEVICE_SPACE;
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case GNOME_VFS_ERROR_READ_ONLY:
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case GNOME_VFS_ERROR_READ_ONLY_FILE_SYSTEM: return NS_ERROR_FILE_READ_ONLY;
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case GNOME_VFS_ERROR_INVALID_URI:
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case GNOME_VFS_ERROR_INVALID_HOST_NAME: return NS_ERROR_MALFORMED_URI;
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case GNOME_VFS_ERROR_ACCESS_DENIED:
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case GNOME_VFS_ERROR_NOT_PERMITTED:
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case GNOME_VFS_ERROR_LOGIN_FAILED: return NS_ERROR_FILE_ACCESS_DENIED;
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case GNOME_VFS_ERROR_EOF: return NS_BASE_STREAM_CLOSED;
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case GNOME_VFS_ERROR_NOT_A_DIRECTORY: return NS_ERROR_FILE_NOT_DIRECTORY;
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case GNOME_VFS_ERROR_IN_PROGRESS: return NS_ERROR_IN_PROGRESS;
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case GNOME_VFS_ERROR_FILE_EXISTS: return NS_ERROR_FILE_ALREADY_EXISTS;
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case GNOME_VFS_ERROR_IS_DIRECTORY: return NS_ERROR_FILE_IS_DIRECTORY;
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case GNOME_VFS_ERROR_NO_MEMORY: return NS_ERROR_OUT_OF_MEMORY;
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case GNOME_VFS_ERROR_HOST_NOT_FOUND:
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case GNOME_VFS_ERROR_HOST_HAS_NO_ADDRESS: return NS_ERROR_UNKNOWN_HOST;
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case GNOME_VFS_ERROR_CANCELLED:
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case GNOME_VFS_ERROR_INTERRUPTED: return NS_ERROR_ABORT;
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case GNOME_VFS_ERROR_DIRECTORY_NOT_EMPTY: return NS_ERROR_FILE_DIR_NOT_EMPTY;
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case GNOME_VFS_ERROR_NAME_TOO_LONG: return NS_ERROR_FILE_NAME_TOO_LONG;
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case GNOME_VFS_ERROR_SERVICE_NOT_AVAILABLE: return NS_ERROR_UNKNOWN_PROTOCOL;
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/* No special mapping for these error codes...
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case GNOME_VFS_ERROR_GENERIC:
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case GNOME_VFS_ERROR_IO:
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case GNOME_VFS_ERROR_WRONG_FORMAT:
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case GNOME_VFS_ERROR_BAD_FILE:
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case GNOME_VFS_ERROR_NOT_OPEN:
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case GNOME_VFS_ERROR_INVALID_OPEN_MODE:
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case GNOME_VFS_ERROR_TOO_MANY_OPEN_FILES:
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case GNOME_VFS_ERROR_LOOP:
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case GNOME_VFS_ERROR_DIRECTORY_BUSY:
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case GNOME_VFS_ERROR_TOO_MANY_LINKS:
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case GNOME_VFS_ERROR_NOT_SAME_FILE_SYSTEM:
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case GNOME_VFS_ERROR_SERVICE_OBSOLETE:
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case GNOME_VFS_ERROR_PROTOCOL_ERROR:
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case GNOME_VFS_ERROR_NO_MASTER_BROWSER:
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*/
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// Make GCC happy
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default:
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return NS_ERROR_FAILURE;
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}
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return NS_ERROR_FAILURE;
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}
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//-----------------------------------------------------------------------------
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static void
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ProxiedAuthCallback(gconstpointer in,
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gsize in_size,
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gpointer out,
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gsize out_size,
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gpointer callback_data)
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{
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GnomeVFSModuleCallbackAuthenticationIn *authIn =
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(GnomeVFSModuleCallbackAuthenticationIn *) in;
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GnomeVFSModuleCallbackAuthenticationOut *authOut =
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(GnomeVFSModuleCallbackAuthenticationOut *) out;
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LOG(("gnomevfs: ProxiedAuthCallback [uri=%s]\n", authIn->uri));
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// Without a channel, we have no way of getting a prompter.
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nsIChannel *channel = (nsIChannel *) callback_data;
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if (!channel)
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return;
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nsCOMPtr<nsIAuthPrompt> prompt;
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NS_QueryNotificationCallbacks(channel, prompt);
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// If no auth prompt, then give up. We could failover to using the
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// WindowWatcher service, but that might defeat a consumer's purposeful
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// attempt to disable authentication (for whatever reason).
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if (!prompt)
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return;
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// Parse out the host and port...
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nsCOMPtr<nsIURI> uri;
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channel->GetURI(getter_AddRefs(uri));
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if (!uri)
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return;
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#ifdef DEBUG
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{
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//
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// Make sure authIn->uri is consistent with the channel's URI.
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//
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// XXX This check is probably not IDN safe, and it might incorrectly
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// fire as a result of escaping differences. It's unclear what
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// kind of transforms GnomeVFS might have applied to the URI spec
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// that we originally gave to it. In spite of the likelihood of
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// false hits, this check is probably still valuable.
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//
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nsCAutoString spec;
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uri->GetSpec(spec);
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int uriLen = strlen(authIn->uri);
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if (!StringHead(spec, uriLen).Equals(nsDependentCString(authIn->uri, uriLen)))
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{
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LOG(("gnomevfs: [spec=%s authIn->uri=%s]\n", spec.get(), authIn->uri));
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NS_ERROR("URI mismatch");
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}
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}
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#endif
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nsCAutoString scheme, hostPort;
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uri->GetScheme(scheme);
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uri->GetHostPort(hostPort);
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// It doesn't make sense for either of these strings to be empty. What kind
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// of funky URI is this?
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if (scheme.IsEmpty() || hostPort.IsEmpty())
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return;
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// Construct the single signon key. Altering the value of this key will
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// cause people's remembered passwords to be forgotten. Think carefully
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// before changing the way this key is constructed.
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nsAutoString key, realm;
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NS_ConvertUTF8toUTF16 dispHost(scheme);
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dispHost.Append(NS_LITERAL_STRING("://"));
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dispHost.Append(NS_ConvertUTF8toUTF16(hostPort));
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key = dispHost;
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if (authIn->realm)
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{
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// We assume the realm string is ASCII. That might be a bogus assumption,
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// but we have no idea what encoding GnomeVFS is using, so for now we'll
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// limit ourselves to ISO-Latin-1. XXX What is a better solution?
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realm.Append('"');
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realm.Append(NS_ConvertASCIItoUTF16(authIn->realm));
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realm.Append('"');
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key.Append(' ');
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key.Append(realm);
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}
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// Construct the message string...
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//
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// We use Necko's string bundle here. This code really should be encapsulated
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// behind some Necko API, after all this code is based closely on the code in
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// nsHttpChannel.cpp.
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nsCOMPtr<nsIStringBundleService> bundleSvc =
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do_GetService(NS_STRINGBUNDLE_CONTRACTID);
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if (!bundleSvc)
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return;
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nsCOMPtr<nsIStringBundle> bundle;
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bundleSvc->CreateBundle(NECKO_MSGS_URL, getter_AddRefs(bundle));
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if (!bundle)
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return;
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nsString message;
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if (!realm.IsEmpty())
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{
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const PRUnichar *strings[] = { realm.get(), dispHost.get() };
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bundle->FormatStringFromName(NS_LITERAL_STRING("EnterUserPasswordForRealm").get(),
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strings, 2, getter_Copies(message));
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}
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else
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{
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const PRUnichar *strings[] = { dispHost.get() };
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bundle->FormatStringFromName(NS_LITERAL_STRING("EnterUserPasswordFor").get(),
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strings, 1, getter_Copies(message));
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}
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if (message.IsEmpty())
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return;
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// Prompt the user...
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nsresult rv;
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PRBool retval = PR_FALSE;
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PRUnichar *user = nsnull, *pass = nsnull;
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rv = prompt->PromptUsernameAndPassword(nsnull, message.get(),
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key.get(),
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nsIAuthPrompt::SAVE_PASSWORD_PERMANENTLY,
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&user, &pass, &retval);
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if (NS_FAILED(rv))
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return;
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if (!retval || !user || !pass)
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return;
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// XXX We need to convert the UTF-16 username and password from our dialog to
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// strings that GnomeVFS can understand. It's unclear what encoding GnomeVFS
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// expects, so for now we assume 7-bit ASCII. Hopefully, we can get a better
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// solution at some point.
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// One copy is never enough...
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authOut->username = g_strdup(NS_LossyConvertUTF16toASCII(user).get());
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authOut->password = g_strdup(NS_LossyConvertUTF16toASCII(pass).get());
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nsMemory::Free(user);
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nsMemory::Free(pass);
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}
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struct nsGnomeVFSAuthCallbackEvent : public nsRunnable
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{
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gconstpointer in;
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gsize in_size;
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gpointer out;
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gsize out_size;
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gpointer callback_data;
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NS_IMETHOD Run() {
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ProxiedAuthCallback(in, in_size, out, out_size, callback_data);
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return NS_OK;
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}
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};
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static void
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AuthCallback(gconstpointer in,
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gsize in_size,
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gpointer out,
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gsize out_size,
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gpointer callback_data)
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{
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// Need to proxy this callback over to the main thread. Synchronous dispatch
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// is required in order to provide data to the GnomeVFS callback.
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nsRefPtr<nsGnomeVFSAuthCallbackEvent> ev = new nsGnomeVFSAuthCallbackEvent();
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if (!ev)
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return; // OOM
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ev->in = in;
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ev->in_size = in_size;
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ev->out = out;
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ev->out_size = out_size;
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ev->callback_data = callback_data;
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NS_DispatchToMainThread(ev, NS_DISPATCH_SYNC);
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}
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//-----------------------------------------------------------------------------
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static gint
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FileInfoComparator(gconstpointer a, gconstpointer b)
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{
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const GnomeVFSFileInfo *ia = (const GnomeVFSFileInfo *) a;
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const GnomeVFSFileInfo *ib = (const GnomeVFSFileInfo *) b;
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return strcasecmp(ia->name, ib->name);
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}
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//-----------------------------------------------------------------------------
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class nsGnomeVFSInputStream : public nsIInputStream
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIINPUTSTREAM
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nsGnomeVFSInputStream(const nsCString &uriSpec)
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: mSpec(uriSpec)
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, mChannel(nsnull)
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, mHandle(nsnull)
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, mBytesRemaining(PR_UINT32_MAX)
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, mStatus(NS_OK)
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, mDirList(nsnull)
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, mDirListPtr(nsnull)
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, mDirBufCursor(0)
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, mDirOpen(PR_FALSE) {}
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~nsGnomeVFSInputStream() { Close(); }
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void SetChannel(nsIChannel *channel)
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{
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// We need to hold an owning reference to our channel. This is done
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// so we can access the channel's notification callbacks to acquire
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// a reference to a nsIAuthPrompt if we need to handle a GnomeVFS
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// authentication callback.
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//
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// However, the channel can only be accessed on the main thread, so
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// we have to be very careful with ownership. Moreover, it doesn't
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// support threadsafe addref/release, so proxying is the answer.
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//
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// Also, it's important to note that this likely creates a reference
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// cycle since the channel likely owns this stream. This reference
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// cycle is broken in our Close method.
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NS_ADDREF(mChannel = channel);
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}
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private:
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GnomeVFSResult DoOpen();
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GnomeVFSResult DoRead(char *aBuf, PRUint32 aCount, PRUint32 *aCountRead);
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nsresult SetContentTypeOfChannel(const char *contentType);
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private:
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nsCString mSpec;
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nsIChannel *mChannel; // manually refcounted
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GnomeVFSHandle *mHandle;
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PRUint32 mBytesRemaining;
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nsresult mStatus;
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GList *mDirList;
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GList *mDirListPtr;
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nsCString mDirBuf;
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PRUint32 mDirBufCursor;
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PRPackedBool mDirOpen;
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};
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GnomeVFSResult
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nsGnomeVFSInputStream::DoOpen()
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{
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GnomeVFSResult rv;
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NS_ASSERTION(mHandle == nsnull, "already open");
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// Push a callback handler on the stack for this thread, so we can intercept
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// authentication requests from GnomeVFS. We'll use the channel to get a
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// nsIAuthPrompt instance.
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gnome_vfs_module_callback_push(GNOME_VFS_MODULE_CALLBACK_AUTHENTICATION,
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AuthCallback, mChannel, NULL);
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// Query the mime type first (this could return NULL).
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//
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// XXX We need to do this up-front in order to determine how to open the URI.
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// Unfortunately, the error code GNOME_VFS_ERROR_IS_DIRECTORY is not
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// always returned by gnome_vfs_open when we pass it a URI to a directory!
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// Otherwise, we could have used that as a way to failover to opening the
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// URI as a directory. Also, it would have been ideal if
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// gnome_vfs_get_file_info_from_handle were actually implemented by the
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// smb:// module, since that would have allowed us to potentially save a
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// round trip to the server to discover the mime type of the document in
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// the case where gnome_vfs_open would have been used. (Oh well! /me
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// throws hands up in the air and moves on...)
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GnomeVFSFileInfo info = {0};
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rv = gnome_vfs_get_file_info(mSpec.get(), &info, GNOME_VFS_FILE_INFO_DEFAULT);
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if (rv == GNOME_VFS_OK && info.type == GNOME_VFS_FILE_TYPE_DIRECTORY)
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{
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rv = gnome_vfs_directory_list_load(&mDirList, mSpec.get(),
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GNOME_VFS_FILE_INFO_DEFAULT);
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LOG(("gnomevfs: gnome_vfs_directory_list_load returned %d (%s) [spec=\"%s\"]\n",
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rv, gnome_vfs_result_to_string(rv), mSpec.get()));
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}
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else
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{
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rv = gnome_vfs_open(&mHandle, mSpec.get(), GNOME_VFS_OPEN_READ);
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LOG(("gnomevfs: gnome_vfs_open returned %d (%s) [spec=\"%s\"]\n",
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rv, gnome_vfs_result_to_string(rv), mSpec.get()));
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}
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gnome_vfs_module_callback_pop(GNOME_VFS_MODULE_CALLBACK_AUTHENTICATION);
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if (rv == GNOME_VFS_OK)
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{
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if (mHandle)
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{
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// Here we set the content type of the channel to the value of the mime
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// type determined by GnomeVFS. However, if GnomeVFS is telling us that
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// the document is binary, we'll ignore that and keep the channel's
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// content type unspecified. That will enable our content type sniffing
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// algorithms. This should provide more consistent mime type handling.
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if (info.mime_type && (strcmp(info.mime_type, APPLICATION_OCTET_STREAM) != 0))
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SetContentTypeOfChannel(info.mime_type);
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// XXX truncates size from 64-bit to 32-bit
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mBytesRemaining = (PRUint32) info.size;
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// Update the content length attribute on the channel. We do this
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// synchronously without proxying. This hack is not as bad as it looks!
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if (mBytesRemaining != PR_UINT32_MAX)
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mChannel->SetContentLength(mBytesRemaining);
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}
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else
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{
|
|
mDirOpen = PR_TRUE;
|
|
|
|
// Sort mDirList
|
|
mDirList = g_list_sort(mDirList, FileInfoComparator);
|
|
mDirListPtr = mDirList;
|
|
|
|
// Write base URL (make sure it ends with a '/')
|
|
mDirBuf.Append("300: ");
|
|
mDirBuf.Append(mSpec);
|
|
if (mSpec.get()[mSpec.Length() - 1] != '/')
|
|
mDirBuf.Append('/');
|
|
mDirBuf.Append('\n');
|
|
|
|
// Write column names
|
|
mDirBuf.Append("200: filename content-length last-modified file-type\n");
|
|
|
|
// Write charset (assume UTF-8)
|
|
// XXX is this correct?
|
|
mDirBuf.Append("301: UTF-8\n");
|
|
|
|
SetContentTypeOfChannel(APPLICATION_HTTP_INDEX_FORMAT);
|
|
}
|
|
}
|
|
|
|
gnome_vfs_file_info_clear(&info);
|
|
return rv;
|
|
}
|
|
|
|
GnomeVFSResult
|
|
nsGnomeVFSInputStream::DoRead(char *aBuf, PRUint32 aCount, PRUint32 *aCountRead)
|
|
{
|
|
GnomeVFSResult rv;
|
|
|
|
if (mHandle)
|
|
{
|
|
GnomeVFSFileSize bytesRead;
|
|
rv = gnome_vfs_read(mHandle, aBuf, aCount, &bytesRead);
|
|
if (rv == GNOME_VFS_OK)
|
|
{
|
|
*aCountRead = (PRUint32) bytesRead;
|
|
mBytesRemaining -= *aCountRead;
|
|
}
|
|
}
|
|
else if (mDirOpen)
|
|
{
|
|
rv = GNOME_VFS_OK;
|
|
|
|
while (aCount && rv != GNOME_VFS_ERROR_EOF)
|
|
{
|
|
// Copy data out of our buffer
|
|
PRUint32 bufLen = mDirBuf.Length() - mDirBufCursor;
|
|
if (bufLen)
|
|
{
|
|
PRUint32 n = PR_MIN(bufLen, aCount);
|
|
memcpy(aBuf, mDirBuf.get() + mDirBufCursor, n);
|
|
*aCountRead += n;
|
|
aBuf += n;
|
|
aCount -= n;
|
|
mDirBufCursor += n;
|
|
}
|
|
|
|
if (!mDirListPtr) // Are we at the end of the directory list?
|
|
{
|
|
rv = GNOME_VFS_ERROR_EOF;
|
|
}
|
|
else if (aCount) // Do we need more data?
|
|
{
|
|
GnomeVFSFileInfo *info = (GnomeVFSFileInfo *) mDirListPtr->data;
|
|
|
|
// Prune '.' and '..' from directory listing.
|
|
if (info->name[0] == '.' &&
|
|
(info->name[1] == '\0' ||
|
|
(info->name[1] == '.' && info->name[2] == '\0')))
|
|
{
|
|
mDirListPtr = mDirListPtr->next;
|
|
continue;
|
|
}
|
|
|
|
mDirBuf.Assign("201: ");
|
|
|
|
// The "filename" field
|
|
nsCString escName;
|
|
nsCOMPtr<nsINetUtil> nu = do_GetService(NS_NETUTIL_CONTRACTID);
|
|
if (nu) {
|
|
nu->EscapeString(nsDependentCString(info->name),
|
|
nsINetUtil::ESCAPE_URL_PATH, escName);
|
|
|
|
mDirBuf.Append(escName);
|
|
mDirBuf.Append(' ');
|
|
}
|
|
|
|
// The "content-length" field
|
|
// XXX truncates size from 64-bit to 32-bit
|
|
mDirBuf.AppendInt(PRInt32(info->size));
|
|
mDirBuf.Append(' ');
|
|
|
|
// The "last-modified" field
|
|
//
|
|
// NSPR promises: PRTime is compatible with time_t
|
|
// we just need to convert from seconds to microseconds
|
|
PRExplodedTime tm;
|
|
PRTime pt = ((PRTime) info->mtime) * 1000000;
|
|
PR_ExplodeTime(pt, PR_GMTParameters, &tm);
|
|
{
|
|
char buf[64];
|
|
PR_FormatTimeUSEnglish(buf, sizeof(buf),
|
|
"%a,%%20%d%%20%b%%20%Y%%20%H:%M:%S%%20GMT ", &tm);
|
|
mDirBuf.Append(buf);
|
|
}
|
|
|
|
// The "file-type" field
|
|
switch (info->type)
|
|
{
|
|
case GNOME_VFS_FILE_TYPE_REGULAR:
|
|
mDirBuf.Append("FILE ");
|
|
break;
|
|
case GNOME_VFS_FILE_TYPE_DIRECTORY:
|
|
mDirBuf.Append("DIRECTORY ");
|
|
break;
|
|
case GNOME_VFS_FILE_TYPE_SYMBOLIC_LINK:
|
|
mDirBuf.Append("SYMBOLIC-LINK ");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
mDirBuf.Append('\n');
|
|
|
|
mDirBufCursor = 0;
|
|
mDirListPtr = mDirListPtr->next;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
NS_NOTREACHED("reading from what?");
|
|
rv = GNOME_VFS_ERROR_GENERIC;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
// This class is used to implement SetContentTypeOfChannel.
|
|
class nsGnomeVFSSetContentTypeEvent : public nsRunnable
|
|
{
|
|
public:
|
|
nsGnomeVFSSetContentTypeEvent(nsIChannel *channel, const char *contentType)
|
|
: mChannel(channel), mContentType(contentType)
|
|
{
|
|
// stash channel reference in mChannel. no AddRef here! see note
|
|
// in SetContentTypeOfchannel.
|
|
}
|
|
|
|
NS_IMETHOD Run()
|
|
{
|
|
mChannel->SetContentType(mContentType);
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
nsIChannel *mChannel;
|
|
nsCString mContentType;
|
|
};
|
|
|
|
nsresult
|
|
nsGnomeVFSInputStream::SetContentTypeOfChannel(const char *contentType)
|
|
{
|
|
// We need to proxy this call over to the main thread. We post an
|
|
// asynchronous event in this case so that we don't delay reading data, and
|
|
// we know that this is safe to do since the channel's reference will be
|
|
// released asynchronously as well. We trust the ordering of the main
|
|
// thread's event queue to protect us against memory corruption.
|
|
|
|
nsresult rv;
|
|
nsCOMPtr<nsIRunnable> ev =
|
|
new nsGnomeVFSSetContentTypeEvent(mChannel, contentType);
|
|
if (!ev)
|
|
{
|
|
rv = NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
else
|
|
{
|
|
rv = NS_DispatchToMainThread(ev);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMPL_THREADSAFE_ISUPPORTS1(nsGnomeVFSInputStream, nsIInputStream)
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSInputStream::Close()
|
|
{
|
|
if (mHandle)
|
|
{
|
|
gnome_vfs_close(mHandle);
|
|
mHandle = nsnull;
|
|
}
|
|
|
|
if (mDirList)
|
|
{
|
|
// Destroy the list of GnomeVFSFileInfo objects...
|
|
g_list_foreach(mDirList, (GFunc) gnome_vfs_file_info_unref, nsnull);
|
|
g_list_free(mDirList);
|
|
mDirList = nsnull;
|
|
mDirListPtr = nsnull;
|
|
}
|
|
|
|
if (mChannel)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
nsCOMPtr<nsIThread> thread = do_GetMainThread();
|
|
if (thread)
|
|
rv = NS_ProxyRelease(thread, mChannel);
|
|
|
|
NS_ASSERTION(thread && NS_SUCCEEDED(rv), "leaking channel reference");
|
|
mChannel = nsnull;
|
|
}
|
|
|
|
mSpec.Truncate(); // free memory
|
|
|
|
// Prevent future reads from re-opening the handle.
|
|
if (NS_SUCCEEDED(mStatus))
|
|
mStatus = NS_BASE_STREAM_CLOSED;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSInputStream::Available(PRUint32 *aResult)
|
|
{
|
|
if (NS_FAILED(mStatus))
|
|
return mStatus;
|
|
|
|
*aResult = mBytesRemaining;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSInputStream::Read(char *aBuf,
|
|
PRUint32 aCount,
|
|
PRUint32 *aCountRead)
|
|
{
|
|
*aCountRead = 0;
|
|
|
|
if (mStatus == NS_BASE_STREAM_CLOSED)
|
|
return NS_OK;
|
|
if (NS_FAILED(mStatus))
|
|
return mStatus;
|
|
|
|
GnomeVFSResult rv = GNOME_VFS_OK;
|
|
|
|
// If this is our first-time through here, then open the URI.
|
|
if (!mHandle && !mDirOpen)
|
|
rv = DoOpen();
|
|
|
|
if (rv == GNOME_VFS_OK)
|
|
rv = DoRead(aBuf, aCount, aCountRead);
|
|
|
|
if (rv != GNOME_VFS_OK)
|
|
{
|
|
// If we reach here, we hit some kind of error. EOF is not an error.
|
|
mStatus = MapGnomeVFSResult(rv);
|
|
if (mStatus == NS_BASE_STREAM_CLOSED)
|
|
return NS_OK;
|
|
|
|
LOG(("gnomevfs: result %d [%s] mapped to 0x%x\n",
|
|
rv, gnome_vfs_result_to_string(rv), mStatus));
|
|
}
|
|
return mStatus;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSInputStream::ReadSegments(nsWriteSegmentFun aWriter,
|
|
void *aClosure,
|
|
PRUint32 aCount,
|
|
PRUint32 *aResult)
|
|
{
|
|
// There is no way to implement this using GnomeVFS, but fortunately
|
|
// that doesn't matter. Because we are a blocking input stream, Necko
|
|
// isn't going to call our ReadSegments method.
|
|
NS_NOTREACHED("nsGnomeVFSInputStream::ReadSegments");
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSInputStream::IsNonBlocking(PRBool *aResult)
|
|
{
|
|
*aResult = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
class nsGnomeVFSProtocolHandler : public nsIProtocolHandler
|
|
, public nsIObserver
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIPROTOCOLHANDLER
|
|
NS_DECL_NSIOBSERVER
|
|
|
|
nsresult Init();
|
|
|
|
private:
|
|
void InitSupportedProtocolsPref(nsIPrefBranch *prefs);
|
|
PRBool IsSupportedProtocol(const nsCString &spec);
|
|
|
|
nsCString mSupportedProtocols;
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS2(nsGnomeVFSProtocolHandler, nsIProtocolHandler, nsIObserver)
|
|
|
|
nsresult
|
|
nsGnomeVFSProtocolHandler::Init()
|
|
{
|
|
#ifdef PR_LOGGING
|
|
sGnomeVFSLog = PR_NewLogModule("gnomevfs");
|
|
#endif
|
|
|
|
if (!gnome_vfs_initialized())
|
|
{
|
|
if (!gnome_vfs_init())
|
|
{
|
|
NS_WARNING("gnome_vfs_init failed");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIPrefBranch2> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
|
|
if (prefs)
|
|
{
|
|
InitSupportedProtocolsPref(prefs);
|
|
prefs->AddObserver(MOZ_GNOMEVFS_SUPPORTED_PROTOCOLS, this, PR_FALSE);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsGnomeVFSProtocolHandler::InitSupportedProtocolsPref(nsIPrefBranch *prefs)
|
|
{
|
|
// read preferences
|
|
nsresult rv = prefs->GetCharPref(MOZ_GNOMEVFS_SUPPORTED_PROTOCOLS,
|
|
getter_Copies(mSupportedProtocols));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
mSupportedProtocols.StripWhitespace();
|
|
ToLowerCase(mSupportedProtocols);
|
|
}
|
|
else
|
|
mSupportedProtocols.Assign("smb:,sftp:"); // use defaults
|
|
|
|
LOG(("gnomevfs: supported protocols \"%s\"\n", mSupportedProtocols.get()));
|
|
}
|
|
|
|
PRBool
|
|
nsGnomeVFSProtocolHandler::IsSupportedProtocol(const nsCString &aSpec)
|
|
{
|
|
const char *specString = aSpec.get();
|
|
const char *colon = strchr(specString, ':');
|
|
if (!colon)
|
|
return PR_FALSE;
|
|
|
|
PRUint32 length = colon - specString + 1;
|
|
|
|
// <scheme> + ':'
|
|
nsCString scheme(specString, length);
|
|
|
|
char *found = PL_strcasestr(mSupportedProtocols.get(), scheme.get());
|
|
if (!found)
|
|
return PR_FALSE;
|
|
|
|
if (found[length] != ',' && found[length] != '\0')
|
|
return PR_FALSE;
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSProtocolHandler::GetScheme(nsACString &aScheme)
|
|
{
|
|
aScheme.Assign(MOZ_GNOMEVFS_SCHEME);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSProtocolHandler::GetDefaultPort(PRInt32 *aDefaultPort)
|
|
{
|
|
*aDefaultPort = -1;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSProtocolHandler::GetProtocolFlags(PRUint32 *aProtocolFlags)
|
|
{
|
|
// Is this true of all GnomeVFS URI types?
|
|
*aProtocolFlags = URI_STD;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSProtocolHandler::NewURI(const nsACString &aSpec,
|
|
const char *aOriginCharset,
|
|
nsIURI *aBaseURI,
|
|
nsIURI **aResult)
|
|
{
|
|
const nsCString flatSpec(aSpec);
|
|
LOG(("gnomevfs: NewURI [spec=%s]\n", flatSpec.get()));
|
|
|
|
if (!aBaseURI)
|
|
{
|
|
//
|
|
// XXX This check is used to limit the gnome-vfs protocols we support. For
|
|
// security reasons, it is best that we limit the protocols we support to
|
|
// those with known characteristics. We might want to lessen this
|
|
// restriction if it proves to be too heavy handed. A black list of
|
|
// protocols we don't want to support might be better. For example, we
|
|
// probably don't want to try to load "start-here:" inside the browser.
|
|
// There are others that fall into this category, which are best handled
|
|
// externally by Nautilus (or another app like it).
|
|
//
|
|
if (!IsSupportedProtocol(flatSpec))
|
|
return NS_ERROR_UNKNOWN_PROTOCOL;
|
|
|
|
// Verify that GnomeVFS supports this URI scheme.
|
|
GnomeVFSURI *uri = gnome_vfs_uri_new(flatSpec.get());
|
|
if (!uri)
|
|
return NS_ERROR_UNKNOWN_PROTOCOL;
|
|
}
|
|
|
|
//
|
|
// XXX Can we really assume that all gnome-vfs URIs can be parsed using
|
|
// nsStandardURL? We probably really need to implement nsIURI/nsIURL
|
|
// in terms of the gnome_vfs_uri_XXX methods, but at least this works
|
|
// correctly for smb:// URLs ;-)
|
|
//
|
|
// Also, it might not be possible to fully implement nsIURI/nsIURL in
|
|
// terms of GnomeVFSURI since some Necko methods have no GnomeVFS
|
|
// equivalent.
|
|
//
|
|
nsresult rv;
|
|
nsCOMPtr<nsIStandardURL> url =
|
|
do_CreateInstance(NS_STANDARDURL_CONTRACTID, &rv);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
rv = url->Init(nsIStandardURL::URLTYPE_STANDARD, -1, flatSpec,
|
|
aOriginCharset, aBaseURI);
|
|
if (NS_SUCCEEDED(rv))
|
|
rv = CallQueryInterface(url, aResult);
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSProtocolHandler::NewChannel(nsIURI *aURI, nsIChannel **aResult)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aURI);
|
|
nsresult rv;
|
|
|
|
nsCAutoString spec;
|
|
rv = aURI->GetSpec(spec);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
nsRefPtr<nsGnomeVFSInputStream> stream = new nsGnomeVFSInputStream(spec);
|
|
if (!stream)
|
|
{
|
|
rv = NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
else
|
|
{
|
|
// start out assuming an unknown content-type. we'll set the content-type
|
|
// to something better once we open the URI.
|
|
rv = NS_NewInputStreamChannel(aResult, aURI, stream,
|
|
NS_LITERAL_CSTRING(UNKNOWN_CONTENT_TYPE));
|
|
if (NS_SUCCEEDED(rv))
|
|
stream->SetChannel(*aResult);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSProtocolHandler::AllowPort(PRInt32 aPort,
|
|
const char *aScheme,
|
|
PRBool *aResult)
|
|
{
|
|
// Don't override anything.
|
|
*aResult = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsGnomeVFSProtocolHandler::Observe(nsISupports *aSubject,
|
|
const char *aTopic,
|
|
const PRUnichar *aData)
|
|
{
|
|
if (strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID) == 0) {
|
|
nsCOMPtr<nsIPrefBranch> prefs = do_QueryInterface(aSubject);
|
|
InitSupportedProtocolsPref(prefs);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define NS_GNOMEVFSPROTOCOLHANDLER_CID \
|
|
{ /* 9b6dc177-a2e4-49e1-9c98-0a8384de7f6c */ \
|
|
0x9b6dc177, \
|
|
0xa2e4, \
|
|
0x49e1, \
|
|
{0x9c, 0x98, 0x0a, 0x83, 0x84, 0xde, 0x7f, 0x6c} \
|
|
}
|
|
|
|
NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsGnomeVFSProtocolHandler, Init)
|
|
|
|
static const nsModuleComponentInfo components[] =
|
|
{
|
|
{ "nsGnomeVFSProtocolHandler",
|
|
NS_GNOMEVFSPROTOCOLHANDLER_CID,
|
|
NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX MOZ_GNOMEVFS_SCHEME,
|
|
nsGnomeVFSProtocolHandlerConstructor
|
|
}
|
|
};
|
|
|
|
NS_IMPL_NSGETMODULE(nsGnomeVFSModule, components)
|