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gecko-dev/netwerk/base/nsNetUtil.inl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:set ts=4 sw=4 sts=4 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/. */
#ifndef nsNetUtil_inl
#define nsNetUtil_inl
#include "mozilla/Services.h"
#include "nsComponentManagerUtils.h"
#include "nsIBufferedStreams.h"
#include "nsIChannel.h"
#include "nsIFile.h"
#include "nsIFileStreams.h"
#include "nsIFileURL.h"
#include "nsIHttpChannel.h"
#include "nsIInputStreamChannel.h"
#include "nsIIOService.h"
#include "nsINestedURI.h"
#include "nsINode.h"
#include "nsIProtocolHandler.h"
#include "nsIStandardURL.h"
#include "nsIStreamLoader.h"
#include "nsIIncrementalStreamLoader.h"
#include "nsIURI.h"
#include "nsIURIWithPrincipal.h"
#include "nsIWritablePropertyBag2.h"
#include "nsNetCID.h"
#include "nsStringStream.h"
#ifdef MOZILLA_INTERNAL_API
// Don't allow functions that end up in nsNetUtil.cpp to be inlined out.
#define INLINE_IF_EXTERN MOZ_NEVER_INLINE
#else
// Make sure that functions included via nsNetUtil.h don't get multiply defined.
#define INLINE_IF_EXTERN MOZ_ALWAYS_INLINE
#endif
#ifdef MOZILLA_INTERNAL_API
INLINE_IF_EXTERN already_AddRefed<nsIIOService>
do_GetIOService(nsresult *error /* = 0 */)
{
nsCOMPtr<nsIIOService> io = mozilla::services::GetIOService();
if (error)
*error = io ? NS_OK : NS_ERROR_FAILURE;
return io.forget();
}
INLINE_IF_EXTERN already_AddRefed<nsINetUtil>
do_GetNetUtil(nsresult *error /* = 0 */)
{
nsCOMPtr<nsIIOService> io = mozilla::services::GetIOService();
nsCOMPtr<nsINetUtil> util;
if (io)
util = do_QueryInterface(io);
if (error)
*error = !!util ? NS_OK : NS_ERROR_FAILURE;
return util.forget();
}
#else
INLINE_IF_EXTERN const nsGetServiceByContractIDWithError
do_GetIOService(nsresult *error /* = 0 */)
{
return nsGetServiceByContractIDWithError(NS_IOSERVICE_CONTRACTID, error);
}
INLINE_IF_EXTERN const nsGetServiceByContractIDWithError
do_GetNetUtil(nsresult *error /* = 0 */)
{
return do_GetIOService(error);
}
#endif
// private little helper function... don't call this directly!
MOZ_ALWAYS_INLINE nsresult
net_EnsureIOService(nsIIOService **ios, nsCOMPtr<nsIIOService> &grip)
{
nsresult rv = NS_OK;
if (!*ios) {
grip = do_GetIOService(&rv);
*ios = grip;
}
return rv;
}
INLINE_IF_EXTERN nsresult
NS_URIChainHasFlags(nsIURI *uri,
uint32_t flags,
bool *result)
{
nsresult rv;
nsCOMPtr<nsINetUtil> util = do_GetNetUtil(&rv);
NS_ENSURE_SUCCESS(rv, rv);
return util->URIChainHasFlags(uri, flags, result);
}
INLINE_IF_EXTERN nsresult
NS_NewURI(nsIURI **result,
const nsACString &spec,
const char *charset /* = nullptr */,
nsIURI *baseURI /* = nullptr */,
nsIIOService *ioService /* = nullptr */) // pass in nsIIOService to optimize callers
{
nsresult rv;
nsCOMPtr<nsIIOService> grip;
rv = net_EnsureIOService(&ioService, grip);
if (ioService)
rv = ioService->NewURI(spec, charset, baseURI, result);
return rv;
}
INLINE_IF_EXTERN nsresult
NS_NewURI(nsIURI **result,
const nsAString &spec,
const char *charset /* = nullptr */,
nsIURI *baseURI /* = nullptr */,
nsIIOService *ioService /* = nullptr */) // pass in nsIIOService to optimize callers
{
return NS_NewURI(result, NS_ConvertUTF16toUTF8(spec), charset, baseURI, ioService);
}
INLINE_IF_EXTERN nsresult
NS_NewURI(nsIURI **result,
const char *spec,
nsIURI *baseURI /* = nullptr */,
nsIIOService *ioService /* = nullptr */) // pass in nsIIOService to optimize callers
{
return NS_NewURI(result, nsDependentCString(spec), nullptr, baseURI, ioService);
}
INLINE_IF_EXTERN nsresult
NS_NewFileURI(nsIURI **result,
nsIFile *spec,
nsIIOService *ioService /* = nullptr */) // pass in nsIIOService to optimize callers
{
nsresult rv;
nsCOMPtr<nsIIOService> grip;
rv = net_EnsureIOService(&ioService, grip);
if (ioService)
rv = ioService->NewFileURI(spec, result);
return rv;
}
INLINE_IF_EXTERN nsresult
NS_NewChannelInternal(nsIChannel **outChannel,
nsIURI *aUri,
nsINode *aLoadingNode,
nsIPrincipal *aLoadingPrincipal,
nsIPrincipal *aTriggeringPrincipal,
nsSecurityFlags aSecurityFlags,
nsContentPolicyType aContentPolicyType,
nsILoadGroup *aLoadGroup /* = nullptr */,
nsIInterfaceRequestor *aCallbacks /* = nullptr */,
nsLoadFlags aLoadFlags /* = nsIRequest::LOAD_NORMAL */,
nsIIOService *aIoService /* = nullptr */)
{
NS_ENSURE_ARG_POINTER(outChannel);
nsCOMPtr<nsIIOService> grip;
nsresult rv = net_EnsureIOService(&aIoService, grip);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIChannel> channel;
rv = aIoService->NewChannelFromURI2(
aUri,
aLoadingNode ?
aLoadingNode->AsDOMNode() : nullptr,
aLoadingPrincipal,
aTriggeringPrincipal,
aSecurityFlags,
aContentPolicyType,
getter_AddRefs(channel));
NS_ENSURE_SUCCESS(rv, rv);
if (aLoadGroup) {
rv = channel->SetLoadGroup(aLoadGroup);
NS_ENSURE_SUCCESS(rv, rv);
}
if (aCallbacks) {
rv = channel->SetNotificationCallbacks(aCallbacks);
NS_ENSURE_SUCCESS(rv, rv);
}
if (aLoadFlags != nsIRequest::LOAD_NORMAL) {
// Retain the LOAD_REPLACE load flag if set.
nsLoadFlags normalLoadFlags = 0;
channel->GetLoadFlags(&normalLoadFlags);
rv = channel->SetLoadFlags(aLoadFlags | (normalLoadFlags & nsIChannel::LOAD_REPLACE));
NS_ENSURE_SUCCESS(rv, rv);
}
channel.forget(outChannel);
return NS_OK;
}
INLINE_IF_EXTERN nsresult
NS_NewChannelInternal(nsIChannel **outChannel,
nsIURI *aUri,
nsILoadInfo *aLoadInfo,
nsILoadGroup *aLoadGroup /* = nullptr */,
nsIInterfaceRequestor *aCallbacks /* = nullptr */,
nsLoadFlags aLoadFlags /* = nsIRequest::LOAD_NORMAL */,
nsIIOService *aIoService /* = nullptr */)
{
// NS_NewChannelInternal is mostly called for channel redirects. We should allow
// the creation of a channel even if the original channel did not have a loadinfo
// attached.
NS_ENSURE_ARG_POINTER(outChannel);
nsCOMPtr<nsIIOService> grip;
nsresult rv = net_EnsureIOService(&aIoService, grip);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIChannel> channel;
rv = aIoService->NewChannelFromURIWithLoadInfo(
aUri,
aLoadInfo,
getter_AddRefs(channel));
NS_ENSURE_SUCCESS(rv, rv);
if (aLoadGroup) {
rv = channel->SetLoadGroup(aLoadGroup);
NS_ENSURE_SUCCESS(rv, rv);
}
if (aCallbacks) {
rv = channel->SetNotificationCallbacks(aCallbacks);
NS_ENSURE_SUCCESS(rv, rv);
}
if (aLoadFlags != nsIRequest::LOAD_NORMAL) {
// Retain the LOAD_REPLACE load flag if set.
nsLoadFlags normalLoadFlags = 0;
channel->GetLoadFlags(&normalLoadFlags);
rv = channel->SetLoadFlags(aLoadFlags | (normalLoadFlags & nsIChannel::LOAD_REPLACE));
NS_ENSURE_SUCCESS(rv, rv);
}
channel.forget(outChannel);
return NS_OK;
}
INLINE_IF_EXTERN nsresult /* NS_NewChannelPrincipal */
NS_NewChannel(nsIChannel **outChannel,
nsIURI *aUri,
nsIPrincipal *aLoadingPrincipal,
nsSecurityFlags aSecurityFlags,
nsContentPolicyType aContentPolicyType,
nsILoadGroup *aLoadGroup /* = nullptr */,
nsIInterfaceRequestor *aCallbacks /* = nullptr */,
nsLoadFlags aLoadFlags /* = nsIRequest::LOAD_NORMAL */,
nsIIOService *aIoService /* = nullptr */)
{
return NS_NewChannelInternal(outChannel,
aUri,
nullptr, // aLoadingNode,
aLoadingPrincipal,
nullptr, // aTriggeringPrincipal
aSecurityFlags,
aContentPolicyType,
aLoadGroup,
aCallbacks,
aLoadFlags,
aIoService);
}
INLINE_IF_EXTERN nsresult
NS_NewStreamLoader(nsIStreamLoader **result,
nsIStreamLoaderObserver *observer,
nsIRequestObserver *requestObserver /* = nullptr */)
{
nsresult rv;
nsCOMPtr<nsIStreamLoader> loader =
do_CreateInstance(NS_STREAMLOADER_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = loader->Init(observer, requestObserver);
if (NS_SUCCEEDED(rv)) {
*result = nullptr;
loader.swap(*result);
}
}
return rv;
}
INLINE_IF_EXTERN nsresult
NS_NewLocalFileInputStream(nsIInputStream **result,
nsIFile *file,
int32_t ioFlags /* = -1 */,
int32_t perm /* = -1 */,
int32_t behaviorFlags /* = 0 */)
{
nsresult rv;
nsCOMPtr<nsIFileInputStream> in =
do_CreateInstance(NS_LOCALFILEINPUTSTREAM_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = in->Init(file, ioFlags, perm, behaviorFlags);
if (NS_SUCCEEDED(rv))
in.forget(result);
}
return rv;
}
INLINE_IF_EXTERN nsresult
NS_NewLocalFileOutputStream(nsIOutputStream **result,
nsIFile *file,
int32_t ioFlags /* = -1 */,
int32_t perm /* = -1 */,
int32_t behaviorFlags /* = 0 */)
{
nsresult rv;
nsCOMPtr<nsIFileOutputStream> out =
do_CreateInstance(NS_LOCALFILEOUTPUTSTREAM_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = out->Init(file, ioFlags, perm, behaviorFlags);
if (NS_SUCCEEDED(rv))
out.forget(result);
}
return rv;
}
INLINE_IF_EXTERN MOZ_WARN_UNUSED_RESULT nsresult
NS_NewBufferedInputStream(nsIInputStream **result,
nsIInputStream *str,
uint32_t bufferSize)
{
nsresult rv;
nsCOMPtr<nsIBufferedInputStream> in =
do_CreateInstance(NS_BUFFEREDINPUTSTREAM_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = in->Init(str, bufferSize);
if (NS_SUCCEEDED(rv)) {
in.forget(result);
}
}
return rv;
}
INLINE_IF_EXTERN nsresult
NS_NewPostDataStream(nsIInputStream **result,
bool isFile,
const nsACString &data)
{
nsresult rv;
if (isFile) {
nsCOMPtr<nsIFile> file;
nsCOMPtr<nsIInputStream> fileStream;
rv = NS_NewNativeLocalFile(data, false, getter_AddRefs(file));
if (NS_SUCCEEDED(rv)) {
rv = NS_NewLocalFileInputStream(getter_AddRefs(fileStream), file);
if (NS_SUCCEEDED(rv)) {
// wrap the file stream with a buffered input stream
rv = NS_NewBufferedInputStream(result, fileStream, 8192);
}
}
return rv;
}
// otherwise, create a string stream for the data (copies)
nsCOMPtr<nsIStringInputStream> stream
(do_CreateInstance("@mozilla.org/io/string-input-stream;1", &rv));
if (NS_FAILED(rv))
return rv;
rv = stream->SetData(data.BeginReading(), data.Length());
if (NS_FAILED(rv))
return rv;
stream.forget(result);
return NS_OK;
}
INLINE_IF_EXTERN bool
NS_IsOffline()
{
bool offline = true;
bool connectivity = true;
nsCOMPtr<nsIIOService> ios = do_GetIOService();
if (ios) {
ios->GetOffline(&offline);
ios->GetConnectivity(&connectivity);
}
return offline || !connectivity;
}
#endif // nsNetUtil_inl
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