diff options
Diffstat (limited to 'netwerk/protocol/file/nsFileProtocolHandler.cpp')
| -rw-r--r-- | netwerk/protocol/file/nsFileProtocolHandler.cpp | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/netwerk/protocol/file/nsFileProtocolHandler.cpp b/netwerk/protocol/file/nsFileProtocolHandler.cpp new file mode 100644 index 0000000000..10a1b9c029 --- /dev/null +++ b/netwerk/protocol/file/nsFileProtocolHandler.cpp @@ -0,0 +1,266 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +// vim:ts=4 sw=2 sts=2 et cin: +/* 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 "nsIFile.h" +#include "nsFileProtocolHandler.h" +#include "nsFileChannel.h" +#include "nsStandardURL.h" +#include "nsURLHelper.h" +#include "nsIURIMutator.h" + +#include "nsNetUtil.h" + +#include "FileChannelChild.h" + +#include "mozilla/ResultExtensions.h" +#include "mozilla/net/NeckoCommon.h" + +// URL file handling, copied and modified from +// xpfe/components/bookmarks/src/nsBookmarksService.cpp +#ifdef XP_WIN +# include <shlobj.h> +# include <intshcut.h> +# include "nsIFileURL.h" +# ifdef CompareString +# undef CompareString +# endif +#endif + +// URL file handling for freedesktop.org +#ifdef XP_UNIX +# include "nsINIParser.h" +# define DESKTOP_ENTRY_SECTION "Desktop Entry" +#endif + +//----------------------------------------------------------------------------- + +nsresult nsFileProtocolHandler::Init() { return NS_OK; } + +NS_IMPL_ISUPPORTS(nsFileProtocolHandler, nsIFileProtocolHandler, + nsIProtocolHandler, nsISupportsWeakReference) + +//----------------------------------------------------------------------------- +// nsIProtocolHandler methods: + +#if defined(XP_WIN) +NS_IMETHODIMP +nsFileProtocolHandler::ReadURLFile(nsIFile* aFile, nsIURI** aURI) { + nsAutoString path; + nsresult rv = aFile->GetPath(path); + if (NS_FAILED(rv)) return rv; + + if (path.Length() < 4) return NS_ERROR_NOT_AVAILABLE; + if (!StringTail(path, 4).LowerCaseEqualsLiteral(".url")) + return NS_ERROR_NOT_AVAILABLE; + + HRESULT result; + + rv = NS_ERROR_NOT_AVAILABLE; + + IUniformResourceLocatorW* urlLink = nullptr; + result = + ::CoCreateInstance(CLSID_InternetShortcut, nullptr, CLSCTX_INPROC_SERVER, + IID_IUniformResourceLocatorW, (void**)&urlLink); + if (SUCCEEDED(result) && urlLink) { + IPersistFile* urlFile = nullptr; + result = urlLink->QueryInterface(IID_IPersistFile, (void**)&urlFile); + if (SUCCEEDED(result) && urlFile) { + result = urlFile->Load(path.get(), STGM_READ); + if (SUCCEEDED(result)) { + LPWSTR lpTemp = nullptr; + + // The URL this method will give us back seems to be already + // escaped. Hence, do not do escaping of our own. + result = urlLink->GetURL(&lpTemp); + if (SUCCEEDED(result) && lpTemp) { + rv = NS_NewURI(aURI, nsDependentString(lpTemp)); + // free the string that GetURL alloc'd + CoTaskMemFree(lpTemp); + } + } + urlFile->Release(); + } + urlLink->Release(); + } + return rv; +} + +#elif defined(XP_UNIX) +NS_IMETHODIMP +nsFileProtocolHandler::ReadURLFile(nsIFile* aFile, nsIURI** aURI) { + // We only support desktop files that end in ".desktop" like the spec says: + // http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s02.html + nsAutoCString leafName; + nsresult rv = aFile->GetNativeLeafName(leafName); + if (NS_FAILED(rv) || !StringEndsWith(leafName, ".desktop"_ns)) { + return NS_ERROR_NOT_AVAILABLE; + } + + bool isFile = false; + rv = aFile->IsFile(&isFile); + if (NS_FAILED(rv) || !isFile) { + return NS_ERROR_NOT_AVAILABLE; + } + + nsINIParser parser; + rv = parser.Init(aFile); + if (NS_FAILED(rv)) return rv; + + nsAutoCString type; + parser.GetString(DESKTOP_ENTRY_SECTION, "Type", type); + if (!type.EqualsLiteral("Link")) return NS_ERROR_NOT_AVAILABLE; + + nsAutoCString url; + rv = parser.GetString(DESKTOP_ENTRY_SECTION, "URL", url); + if (NS_FAILED(rv) || url.IsEmpty()) return NS_ERROR_NOT_AVAILABLE; + + return NS_NewURI(aURI, url); +} + +#else // other platforms +NS_IMETHODIMP +nsFileProtocolHandler::ReadURLFile(nsIFile* aFile, nsIURI** aURI) { + return NS_ERROR_NOT_AVAILABLE; +} +#endif // ReadURLFile() + +NS_IMETHODIMP +nsFileProtocolHandler::ReadShellLink(nsIFile* aFile, nsIURI** aURI) { +#if defined(XP_WIN) + nsAutoString path; + MOZ_TRY(aFile->GetPath(path)); + + if (path.Length() < 4 || + !StringTail(path, 4).LowerCaseEqualsLiteral(".lnk")) { + return NS_ERROR_NOT_AVAILABLE; + } + RefPtr<IPersistFile> persistFile; + RefPtr<IShellLinkW> shellLink; + WCHAR lpTemp[MAX_PATH]; + // Get a pointer to the IPersistFile interface. + if (FAILED(CoCreateInstance(CLSID_ShellLink, nullptr, CLSCTX_INPROC_SERVER, + IID_IShellLinkW, getter_AddRefs(shellLink))) || + FAILED(shellLink->QueryInterface(IID_IPersistFile, + getter_AddRefs(persistFile))) || + FAILED(persistFile->Load(path.get(), STGM_READ)) || + FAILED(shellLink->Resolve(nullptr, SLR_NO_UI)) || + FAILED(shellLink->GetPath(lpTemp, MAX_PATH, nullptr, SLGP_UNCPRIORITY))) { + return NS_ERROR_FAILURE; + } + nsCOMPtr<nsIFile> linkedFile; + MOZ_TRY(NS_NewLocalFile(nsDependentString(lpTemp), false, + getter_AddRefs(linkedFile))); + return NS_NewFileURI(aURI, linkedFile); +#else + return NS_ERROR_NOT_AVAILABLE; +#endif +} + +NS_IMETHODIMP +nsFileProtocolHandler::GetScheme(nsACString& result) { + result.AssignLiteral("file"); + return NS_OK; +} + +NS_IMETHODIMP +nsFileProtocolHandler::NewChannel(nsIURI* uri, nsILoadInfo* aLoadInfo, + nsIChannel** result) { + nsresult rv; + + RefPtr<nsFileChannel> chan; + if (mozilla::net::IsNeckoChild()) { + chan = new mozilla::net::FileChannelChild(uri); + } else { + chan = new nsFileChannel(uri); + } + + // set the loadInfo on the new channel ; must do this + // before calling Init() on it, since it needs the load + // info be already set. + rv = chan->SetLoadInfo(aLoadInfo); + if (NS_FAILED(rv)) { + return rv; + } + + rv = chan->Init(); + if (NS_FAILED(rv)) { + return rv; + } + + *result = chan.forget().downcast<nsBaseChannel>().take(); + return NS_OK; +} + +NS_IMETHODIMP +nsFileProtocolHandler::AllowPort(int32_t port, const char* scheme, + bool* result) { + // don't override anything. + *result = false; + return NS_OK; +} + +//----------------------------------------------------------------------------- +// nsIFileProtocolHandler methods: + +NS_IMETHODIMP +nsFileProtocolHandler::NewFileURI(nsIFile* aFile, nsIURI** aResult) { + NS_ENSURE_ARG_POINTER(aFile); + + RefPtr<nsIFile> file(aFile); + // NOTE: the origin charset is assigned the value of the platform + // charset by the SetFile method. + return NS_MutateURI(new mozilla::net::nsStandardURL::Mutator()) + .Apply(&nsIFileURLMutator::SetFile, file) + .Finalize(aResult); +} + +NS_IMETHODIMP +nsFileProtocolHandler::NewFileURIMutator(nsIFile* aFile, + nsIURIMutator** aResult) { + NS_ENSURE_ARG_POINTER(aFile); + nsresult rv; + + nsCOMPtr<nsIURIMutator> mutator = new mozilla::net::nsStandardURL::Mutator(); + nsCOMPtr<nsIFileURLMutator> fileMutator = do_QueryInterface(mutator, &rv); + if (NS_FAILED(rv)) { + return rv; + } + + // NOTE: the origin charset is assigned the value of the platform + // charset by the SetFile method. + rv = fileMutator->SetFile(aFile); + if (NS_FAILED(rv)) { + return rv; + } + + mutator.forget(aResult); + return NS_OK; +} + +NS_IMETHODIMP +nsFileProtocolHandler::GetURLSpecFromFile(nsIFile* file, nsACString& result) { + NS_ENSURE_ARG_POINTER(file); + return net_GetURLSpecFromFile(file, result); +} + +NS_IMETHODIMP +nsFileProtocolHandler::GetURLSpecFromActualFile(nsIFile* file, + nsACString& result) { + NS_ENSURE_ARG_POINTER(file); + return net_GetURLSpecFromActualFile(file, result); +} + +NS_IMETHODIMP +nsFileProtocolHandler::GetURLSpecFromDir(nsIFile* file, nsACString& result) { + NS_ENSURE_ARG_POINTER(file); + return net_GetURLSpecFromDir(file, result); +} + +NS_IMETHODIMP +nsFileProtocolHandler::GetFileFromURLSpec(const nsACString& spec, + nsIFile** result) { + return net_GetFileFromURLSpec(spec, result); +} |