mirror of
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309 lines
8.3 KiB
C++
309 lines
8.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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// vim:ts=4 sw=4 sts=4 et cin:
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsFileProtocolHandler.h"
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#include "nsFileChannel.h"
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#include "nsInputStreamChannel.h"
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#include "nsStandardURL.h"
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#include "nsURLHelper.h"
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#include "nsNetCID.h"
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#include "nsIServiceManager.h"
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#include "nsIURL.h"
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#include "nsNetUtil.h"
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// URL file handling, copied and modified from xpfe/components/bookmarks/src/nsBookmarksService.cpp
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#ifdef XP_WIN
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#include <shlobj.h>
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#include <intshcut.h>
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#include "nsIFileURL.h"
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#ifdef CompareString
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#undef CompareString
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#endif
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#endif
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// URL file handling for OS/2
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#ifdef XP_OS2
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#include "prio.h"
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#include "nsIFileURL.h"
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#include "nsILocalFileOS2.h"
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#endif
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// URL file handling for freedesktop.org
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#ifdef XP_UNIX
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#include "nsINIParser.h"
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#define DESKTOP_ENTRY_SECTION "Desktop Entry"
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#endif
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//-----------------------------------------------------------------------------
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nsFileProtocolHandler::nsFileProtocolHandler()
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{
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}
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nsresult
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nsFileProtocolHandler::Init()
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{
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return NS_OK;
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}
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NS_IMPL_THREADSAFE_ISUPPORTS3(nsFileProtocolHandler,
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nsIFileProtocolHandler,
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nsIProtocolHandler,
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nsISupportsWeakReference)
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//-----------------------------------------------------------------------------
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// nsIProtocolHandler methods:
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#if defined(XP_WIN)
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NS_IMETHODIMP
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nsFileProtocolHandler::ReadURLFile(nsIFile* aFile, nsIURI** aURI)
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{
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nsAutoString path;
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nsresult rv = aFile->GetPath(path);
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if (NS_FAILED(rv))
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return rv;
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if (path.Length() < 4)
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return NS_ERROR_NOT_AVAILABLE;
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if (!StringTail(path, 4).LowerCaseEqualsLiteral(".url"))
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return NS_ERROR_NOT_AVAILABLE;
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HRESULT result;
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rv = NS_ERROR_NOT_AVAILABLE;
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IUniformResourceLocatorW* urlLink = nullptr;
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result = ::CoCreateInstance(CLSID_InternetShortcut, NULL, CLSCTX_INPROC_SERVER,
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IID_IUniformResourceLocatorW, (void**)&urlLink);
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if (SUCCEEDED(result) && urlLink) {
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IPersistFile* urlFile = nullptr;
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result = urlLink->QueryInterface(IID_IPersistFile, (void**)&urlFile);
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if (SUCCEEDED(result) && urlFile) {
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result = urlFile->Load(path.get(), STGM_READ);
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if (SUCCEEDED(result) ) {
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LPWSTR lpTemp = nullptr;
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// The URL this method will give us back seems to be already
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// escaped. Hence, do not do escaping of our own.
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result = urlLink->GetURL(&lpTemp);
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if (SUCCEEDED(result) && lpTemp) {
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rv = NS_NewURI(aURI, nsDependentString(lpTemp));
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// free the string that GetURL alloc'd
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CoTaskMemFree(lpTemp);
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}
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}
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urlFile->Release();
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}
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urlLink->Release();
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}
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return rv;
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}
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#elif defined(XP_OS2)
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NS_IMETHODIMP
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nsFileProtocolHandler::ReadURLFile(nsIFile* aFile, nsIURI** aURI)
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{
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nsresult rv;
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nsCOMPtr<nsILocalFileOS2> os2File (do_QueryInterface(aFile, &rv));
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if (NS_FAILED(rv))
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return NS_ERROR_NOT_AVAILABLE;
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// see if this file is a WPS UrlObject
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bool isUrl;
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rv = os2File->IsFileType(NS_LITERAL_CSTRING("UniformResourceLocator"),
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&isUrl);
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if (NS_FAILED(rv) || !isUrl)
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return NS_ERROR_NOT_AVAILABLE;
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// if so, open it & get its size
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PRFileDesc *file;
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rv = os2File->OpenNSPRFileDesc(PR_RDONLY, 0, &file);
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if (NS_FAILED(rv))
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return NS_ERROR_NOT_AVAILABLE;
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int64_t fileSize;
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os2File->GetFileSize(&fileSize);
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rv = NS_ERROR_NOT_AVAILABLE;
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// get a buffer, read the entire file, then create
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// an nsURI; we assume the string is already escaped
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char * buffer = (char*)NS_Alloc(fileSize+1);
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if (buffer) {
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int32_t cnt = PR_Read(file, buffer, fileSize);
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if (cnt > 0) {
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buffer[cnt] = '\0';
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if (NS_SUCCEEDED(NS_NewURI(aURI, nsDependentCString(buffer))))
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rv = NS_OK;
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}
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NS_Free(buffer);
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}
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PR_Close(file);
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return rv;
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}
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#elif defined(XP_UNIX)
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NS_IMETHODIMP
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nsFileProtocolHandler::ReadURLFile(nsIFile* aFile, nsIURI** aURI)
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{
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// We only support desktop files that end in ".desktop" like the spec says:
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// http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s02.html
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nsAutoCString leafName;
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nsresult rv = aFile->GetNativeLeafName(leafName);
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if (NS_FAILED(rv) ||
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!StringEndsWith(leafName, NS_LITERAL_CSTRING(".desktop")))
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return NS_ERROR_NOT_AVAILABLE;
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nsINIParser parser;
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rv = parser.Init(aFile);
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if (NS_FAILED(rv))
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return rv;
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nsAutoCString type;
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parser.GetString(DESKTOP_ENTRY_SECTION, "Type", type);
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if (!type.EqualsLiteral("Link"))
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return NS_ERROR_NOT_AVAILABLE;
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nsAutoCString url;
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rv = parser.GetString(DESKTOP_ENTRY_SECTION, "URL", url);
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if (NS_FAILED(rv) || url.IsEmpty())
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return NS_ERROR_NOT_AVAILABLE;
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return NS_NewURI(aURI, url);
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}
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#else // other platforms
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NS_IMETHODIMP
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nsFileProtocolHandler::ReadURLFile(nsIFile* aFile, nsIURI** aURI)
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{
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return NS_ERROR_NOT_AVAILABLE;
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}
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#endif // ReadURLFile()
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NS_IMETHODIMP
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nsFileProtocolHandler::GetScheme(nsACString &result)
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{
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result.AssignLiteral("file");
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::GetDefaultPort(int32_t *result)
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{
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*result = -1; // no port for file: URLs
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::GetProtocolFlags(uint32_t *result)
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{
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*result = URI_NOAUTH | URI_IS_LOCAL_FILE | URI_IS_LOCAL_RESOURCE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::NewURI(const nsACString &spec,
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const char *charset,
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nsIURI *baseURI,
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nsIURI **result)
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{
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nsCOMPtr<nsIStandardURL> url = new nsStandardURL(true);
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if (!url)
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return NS_ERROR_OUT_OF_MEMORY;
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const nsACString *specPtr = &spec;
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#if defined(XP_WIN) || defined(XP_OS2)
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nsAutoCString buf;
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if (net_NormalizeFileURL(spec, buf))
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specPtr = &buf;
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#endif
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nsresult rv = url->Init(nsIStandardURL::URLTYPE_NO_AUTHORITY, -1,
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*specPtr, charset, baseURI);
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if (NS_FAILED(rv)) return rv;
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return CallQueryInterface(url, result);
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::NewChannel(nsIURI *uri, nsIChannel **result)
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{
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nsFileChannel *chan = new nsFileChannel(uri);
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if (!chan)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(chan);
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nsresult rv = chan->Init();
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if (NS_FAILED(rv)) {
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NS_RELEASE(chan);
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return rv;
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}
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*result = chan;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::AllowPort(int32_t port, const char *scheme, bool *result)
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{
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// don't override anything.
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*result = false;
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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// nsIFileProtocolHandler methods:
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NS_IMETHODIMP
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nsFileProtocolHandler::NewFileURI(nsIFile *file, nsIURI **result)
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{
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NS_ENSURE_ARG_POINTER(file);
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nsresult rv;
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nsCOMPtr<nsIFileURL> url = new nsStandardURL(true);
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if (!url)
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return NS_ERROR_OUT_OF_MEMORY;
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// NOTE: the origin charset is assigned the value of the platform
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// charset by the SetFile method.
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rv = url->SetFile(file);
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if (NS_FAILED(rv)) return rv;
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return CallQueryInterface(url, result);
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::GetURLSpecFromFile(nsIFile *file, nsACString &result)
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{
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NS_ENSURE_ARG_POINTER(file);
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return net_GetURLSpecFromFile(file, result);
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::GetURLSpecFromActualFile(nsIFile *file,
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nsACString &result)
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{
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NS_ENSURE_ARG_POINTER(file);
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return net_GetURLSpecFromActualFile(file, result);
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::GetURLSpecFromDir(nsIFile *file, nsACString &result)
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{
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NS_ENSURE_ARG_POINTER(file);
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return net_GetURLSpecFromDir(file, result);
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}
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NS_IMETHODIMP
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nsFileProtocolHandler::GetFileFromURLSpec(const nsACString &spec, nsIFile **result)
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{
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return net_GetFileFromURLSpec(spec, result);
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}
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