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uriloader/exthandler/unix/nsGNOMERegistry.cpp@925c144e1f1f (annotated)

uriloader/exthandler/unix/nsGNOMERegistry.cpp

Fri, 16 Jan 2015 18:13:44 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Fri, 16 Jan 2015 18:13:44 +0100
branch
TOR_BUG_9701
changeset 14
925c144e1f1f
permissions
-rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 "nsGNOMERegistry.h"
michael@0 7 #include "nsString.h"
michael@0 8 #include "nsIComponentManager.h"
michael@0 9 #include "nsIFile.h"
michael@0 10 #include "nsMIMEInfoUnix.h"
michael@0 11 #include "nsAutoPtr.h"
michael@0 12 #include "nsIGConfService.h"
michael@0 13 #include "nsIGnomeVFSService.h"
michael@0 14 #include "nsIGIOService.h"
michael@0 15
michael@0 16 #ifdef MOZ_WIDGET_GTK
michael@0 17 #include <glib.h>
michael@0 18 #include <glib-object.h>
michael@0 19 #endif
michael@0 20
michael@0 21 /* static */ bool
michael@0 22 nsGNOMERegistry::HandlerExists(const char *aProtocolScheme)
michael@0 23 {
michael@0 24 nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0 25 nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0 26 if (giovfs) {
michael@0 27 nsCOMPtr<nsIGIOMimeApp> app;
michael@0 28 if (NS_FAILED(giovfs->GetAppForURIScheme(nsDependentCString(aProtocolScheme),
michael@0 29 getter_AddRefs(app))))
michael@0 30 return false;
michael@0 31 else
michael@0 32 return true;
michael@0 33 } else if (gconf) {
michael@0 34 bool isEnabled;
michael@0 35 nsAutoCString handler;
michael@0 36 if (NS_FAILED(gconf->GetAppForProtocol(nsDependentCString(aProtocolScheme), &isEnabled, handler)))
michael@0 37 return false;
michael@0 38
michael@0 39 return isEnabled;
michael@0 40 }
michael@0 41
michael@0 42 return false;
michael@0 43 }
michael@0 44
michael@0 45 // XXX Check HandlerExists() before calling LoadURL.
michael@0 46 //
michael@0 47 // If there is not a registered handler for the protocol, gnome_url_show()
michael@0 48 // falls back to using gnomevfs modules. See bug 389632. We don't want
michael@0 49 // this fallback to happen as we are not sure of the safety of all gnomevfs
michael@0 50 // modules and MIME-default applications. (gnomevfs should be handled in
michael@0 51 // nsGnomeVFSProtocolHandler.)
michael@0 52
michael@0 53 /* static */ nsresult
michael@0 54 nsGNOMERegistry::LoadURL(nsIURI *aURL)
michael@0 55 {
michael@0 56 nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0 57 if (giovfs)
michael@0 58 return giovfs->ShowURI(aURL);
michael@0 59
michael@0 60 nsCOMPtr<nsIGnomeVFSService> gnomevfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
michael@0 61 if (gnomevfs)
michael@0 62 return gnomevfs->ShowURI(aURL);
michael@0 63
michael@0 64 return NS_ERROR_FAILURE;
michael@0 65 }
michael@0 66
michael@0 67 /* static */ void
michael@0 68 nsGNOMERegistry::GetAppDescForScheme(const nsACString& aScheme,
michael@0 69 nsAString& aDesc)
michael@0 70 {
michael@0 71 nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0 72 nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0 73 if (!gconf && !giovfs)
michael@0 74 return;
michael@0 75
michael@0 76 nsAutoCString name;
michael@0 77 if (giovfs) {
michael@0 78 nsCOMPtr<nsIGIOMimeApp> app;
michael@0 79 if (NS_FAILED(giovfs->GetAppForURIScheme(aScheme, getter_AddRefs(app))))
michael@0 80 return;
michael@0 81
michael@0 82 app->GetName(name);
michael@0 83 } else {
michael@0 84 bool isEnabled;
michael@0 85 if (NS_FAILED(gconf->GetAppForProtocol(aScheme, &isEnabled, name)))
michael@0 86 return;
michael@0 87
michael@0 88 if (!name.IsEmpty()) {
michael@0 89 // Try to only provide the executable name, as it is much simpler than with the path and arguments
michael@0 90 int32_t firstSpace = name.FindChar(' ');
michael@0 91 if (firstSpace != kNotFound) {
michael@0 92 name.Truncate(firstSpace);
michael@0 93 int32_t lastSlash = name.RFindChar('/');
michael@0 94 if (lastSlash != kNotFound) {
michael@0 95 name.Cut(0, lastSlash + 1);
michael@0 96 }
michael@0 97 }
michael@0 98 }
michael@0 99 }
michael@0 100
michael@0 101 CopyUTF8toUTF16(name, aDesc);
michael@0 102 }
michael@0 103
michael@0 104
michael@0 105 /* static */ already_AddRefed<nsMIMEInfoBase>
michael@0 106 nsGNOMERegistry::GetFromExtension(const nsACString& aFileExt)
michael@0 107 {
michael@0 108 nsAutoCString mimeType;
michael@0 109 nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0 110
michael@0 111 if (giovfs) {
michael@0 112 // Get the MIME type from the extension, then call GetFromType to
michael@0 113 // fill in the MIMEInfo.
michael@0 114 if (NS_FAILED(giovfs->GetMimeTypeFromExtension(aFileExt, mimeType)) ||
michael@0 115 mimeType.EqualsLiteral("application/octet-stream")) {
michael@0 116 return nullptr;
michael@0 117 }
michael@0 118 } else {
michael@0 119 /* Fallback to GnomeVFS */
michael@0 120 nsCOMPtr<nsIGnomeVFSService> gnomevfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
michael@0 121 if (!gnomevfs)
michael@0 122 return nullptr;
michael@0 123
michael@0 124 if (NS_FAILED(gnomevfs->GetMimeTypeFromExtension(aFileExt, mimeType)) ||
michael@0 125 mimeType.EqualsLiteral("application/octet-stream"))
michael@0 126 return nullptr;
michael@0 127 }
michael@0 128
michael@0 129 nsRefPtr<nsMIMEInfoBase> mi = GetFromType(mimeType);
michael@0 130 if (mi) {
michael@0 131 mi->AppendExtension(aFileExt);
michael@0 132 }
michael@0 133
michael@0 134 return mi.forget();
michael@0 135 }
michael@0 136
michael@0 137 /* static */ already_AddRefed<nsMIMEInfoBase>
michael@0 138 nsGNOMERegistry::GetFromType(const nsACString& aMIMEType)
michael@0 139 {
michael@0 140 nsRefPtr<nsMIMEInfoUnix> mimeInfo = new nsMIMEInfoUnix(aMIMEType);
michael@0 141 NS_ENSURE_TRUE(mimeInfo, nullptr);
michael@0 142
michael@0 143 nsAutoCString name;
michael@0 144 nsAutoCString description;
michael@0 145
michael@0 146 nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0 147 if (giovfs) {
michael@0 148 nsCOMPtr<nsIGIOMimeApp> gioHandlerApp;
michael@0 149 if (NS_FAILED(giovfs->GetAppForMimeType(aMIMEType, getter_AddRefs(gioHandlerApp))) ||
michael@0 150 !gioHandlerApp) {
michael@0 151 return nullptr;
michael@0 152 }
michael@0 153 gioHandlerApp->GetName(name);
michael@0 154 giovfs->GetDescriptionForMimeType(aMIMEType, description);
michael@0 155 } else {
michael@0 156 /* Fallback to GnomeVFS*/
michael@0 157 nsCOMPtr<nsIGnomeVFSService> gnomevfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
michael@0 158 if (!gnomevfs)
michael@0 159 return nullptr;
michael@0 160
michael@0 161 nsCOMPtr<nsIGnomeVFSMimeApp> gnomeHandlerApp;
michael@0 162 if (NS_FAILED(gnomevfs->GetAppForMimeType(aMIMEType, getter_AddRefs(gnomeHandlerApp))) ||
michael@0 163 !gnomeHandlerApp) {
michael@0 164 return nullptr;
michael@0 165 }
michael@0 166 gnomeHandlerApp->GetName(name);
michael@0 167 gnomevfs->GetDescriptionForMimeType(aMIMEType, description);
michael@0 168 }
michael@0 169
michael@0 170 mimeInfo->SetDefaultDescription(NS_ConvertUTF8toUTF16(name));
michael@0 171 mimeInfo->SetPreferredAction(nsIMIMEInfo::useSystemDefault);
michael@0 172 mimeInfo->SetDescription(NS_ConvertUTF8toUTF16(description));
michael@0 173
michael@0 174 return mimeInfo.forget();
michael@0 175 }

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