gecko-dev/netwerk/streamconv/test/TestStreamConv.cpp

262 строки
9.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "nsIServiceManager.h"
#include "nsIStreamConverterService.h"
#include "nsIStreamConverter.h"
#include "nsICategoryManager.h"
#include "mozilla/Module.h"
#include "nsXULAppAPI.h"
#include "nsIStringStream.h"
#include "nsCOMPtr.h"
#include "nsThreadUtils.h"
#include "mozilla/Attributes.h"
#include "nsMemory.h"
#include "nsServiceManagerUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsIRequest.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#define ASYNC_TEST // undefine this if you want to test sycnronous conversion.
/////////////////////////////////
// Event pump setup
/////////////////////////////////
#ifdef XP_WIN
#include <windows.h>
#endif
static int gKeepRunning = 0;
/////////////////////////////////
// Event pump END
/////////////////////////////////
/////////////////////////////////
// Test converters include
/////////////////////////////////
#include "Converters.h"
// CID setup
static NS_DEFINE_CID(kStreamConverterServiceCID, NS_STREAMCONVERTERSERVICE_CID);
////////////////////////////////////////////////////////////////////////
// EndListener - This listener is the final one in the chain. It
// receives the fully converted data, although it doesn't do anything with
// the data.
////////////////////////////////////////////////////////////////////////
class EndListener final : public nsIStreamListener {
~EndListener() {}
public:
// nsISupports declaration
NS_DECL_ISUPPORTS
EndListener() {}
// nsIStreamListener method
NS_IMETHOD OnDataAvailable(nsIRequest* request, nsISupports *ctxt, nsIInputStream *inStr,
uint64_t sourceOffset, uint32_t count) override
{
nsresult rv;
uint32_t read;
uint64_t len64;
rv = inStr->Available(&len64);
if (NS_FAILED(rv)) return rv;
uint32_t len = (uint32_t)std::min(len64, (uint64_t)(UINT32_MAX - 1));
char *buffer = (char*)moz_xmalloc(len + 1);
if (!buffer) return NS_ERROR_OUT_OF_MEMORY;
rv = inStr->Read(buffer, len, &read);
buffer[len] = '\0';
if (NS_SUCCEEDED(rv)) {
printf("CONTEXT %p: Received %u bytes and the following data: \n %s\n\n",
static_cast<void*>(ctxt), read, buffer);
}
free(buffer);
return NS_OK;
}
// nsIRequestObserver methods
NS_IMETHOD OnStartRequest(nsIRequest* request, nsISupports *ctxt) override { return NS_OK; }
NS_IMETHOD OnStopRequest(nsIRequest* request, nsISupports *ctxt,
nsresult aStatus) override { return NS_OK; }
};
NS_IMPL_ISUPPORTS(EndListener,
nsIStreamListener,
nsIRequestObserver)
////////////////////////////////////////////////////////////////////////
// EndListener END
////////////////////////////////////////////////////////////////////////
nsresult SendData(const char * aData, nsIStreamListener* aListener, nsIRequest* request) {
nsresult rv;
nsCOMPtr<nsIStringInputStream> dataStream
(do_CreateInstance("@mozilla.org/io/string-input-stream;1", &rv));
NS_ENSURE_SUCCESS(rv, rv);
rv = dataStream->SetData(aData, strlen(aData));
NS_ENSURE_SUCCESS(rv, rv);
uint64_t avail = 0;
dataStream->Available(&avail);
uint64_t offset = 0;
while (avail > 0) {
uint32_t count = saturated(avail);
rv = aListener->OnDataAvailable(request, nullptr, dataStream,
offset, count);
if (NS_FAILED(rv)) return rv;
offset += count;
avail -= count;
}
return NS_OK;
}
#define SEND_DATA(x) SendData(x, converterListener, request)
static const mozilla::Module::CIDEntry kTestCIDs[] = {
{ &kTestConverterCID, false, nullptr, CreateTestConverter },
{ nullptr }
};
static const mozilla::Module::ContractIDEntry kTestContracts[] = {
{ NS_ISTREAMCONVERTER_KEY "?from=a/foo&to=b/foo", &kTestConverterCID },
{ NS_ISTREAMCONVERTER_KEY "?from=b/foo&to=c/foo", &kTestConverterCID },
{ NS_ISTREAMCONVERTER_KEY "?from=b/foo&to=d/foo", &kTestConverterCID },
{ NS_ISTREAMCONVERTER_KEY "?from=c/foo&to=d/foo", &kTestConverterCID },
{ NS_ISTREAMCONVERTER_KEY "?from=d/foo&to=e/foo", &kTestConverterCID },
{ NS_ISTREAMCONVERTER_KEY "?from=d/foo&to=f/foo", &kTestConverterCID },
{ NS_ISTREAMCONVERTER_KEY "?from=t/foo&to=k/foo", &kTestConverterCID },
{ nullptr }
};
static const mozilla::Module::CategoryEntry kTestCategories[] = {
{ NS_ISTREAMCONVERTER_KEY, "?from=a/foo&to=b/foo", "x" },
{ NS_ISTREAMCONVERTER_KEY, "?from=b/foo&to=c/foo", "x" },
{ NS_ISTREAMCONVERTER_KEY, "?from=b/foo&to=d/foo", "x" },
{ NS_ISTREAMCONVERTER_KEY, "?from=c/foo&to=d/foo", "x" },
{ NS_ISTREAMCONVERTER_KEY, "?from=d/foo&to=e/foo", "x" },
{ NS_ISTREAMCONVERTER_KEY, "?from=d/foo&to=f/foo", "x" },
{ NS_ISTREAMCONVERTER_KEY, "?from=t/foo&to=k/foo", "x" },
{ nullptr }
};
static const mozilla::Module kTestModule = {
mozilla::Module::kVersion,
kTestCIDs,
kTestContracts,
kTestCategories
};
int
main(int argc, char* argv[])
{
nsresult rv;
{
XRE_AddStaticComponent(&kTestModule);
nsCOMPtr<nsIServiceManager> servMan;
NS_InitXPCOM2(getter_AddRefs(servMan), nullptr, nullptr);
nsCOMPtr<nsIThread> thread = do_GetCurrentThread();
nsCOMPtr<nsICategoryManager> catman =
do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
if (NS_FAILED(rv)) return -1;
nsCString previous;
nsCOMPtr<nsIStreamConverterService> StreamConvService =
do_GetService(kStreamConverterServiceCID, &rv);
if (NS_FAILED(rv)) return -1;
// Define the *from* content type and *to* content-type for conversion.
static const char fromStr[] = "a/foo";
static const char toStr[] = "c/foo";
#ifdef ASYNC_TEST
// ASYNCHRONOUS conversion
// Build up a channel that represents the content we're
// starting the transaction with.
//
// sample multipart mixed content-type string:
// "multipart/x-mixed-replacE;boundary=thisrandomstring"
#if 0
nsCOMPtr<nsIChannel> channel;
nsCOMPtr<nsIURI> dummyURI;
rv = NS_NewURI(getter_AddRefs(dummyURI), "http://meaningless");
if (NS_FAILED(rv)) return -1;
rv = NS_NewInputStreamChannel(getter_AddRefs(channel),
dummyURI,
nullptr, // inStr
"text/plain", // content-type
-1); // XXX fix contentLength
if (NS_FAILED(rv)) return -1;
nsCOMPtr<nsIRequest> request(do_QueryInterface(channel));
#endif
nsCOMPtr<nsIRequest> request;
// setup a listener to receive the converted data. This guy is the end
// listener in the chain, he wants the fully converted (toType) data.
// An example of this listener in mozilla would be the DocLoader.
nsIStreamListener *dataReceiver = new EndListener();
NS_ADDREF(dataReceiver);
// setup a listener to push the data into. This listener sits inbetween the
// unconverted data of fromType, and the final listener in the chain (in this case
// the dataReceiver.
nsIStreamListener *converterListener = nullptr;
rv = StreamConvService->AsyncConvertData(fromStr, toStr,
dataReceiver, nullptr, &converterListener);
if (NS_FAILED(rv)) return -1;
NS_RELEASE(dataReceiver);
// at this point we have a stream listener to push data to, and the one
// that will receive the converted data. Let's mimic On*() calls and get the conversion
// going. Typically these On*() calls would be made inside their respective wrappers On*()
// methods.
rv = converterListener->OnStartRequest(request, nullptr);
if (NS_FAILED(rv)) return -1;
rv = SEND_DATA("aaa");
if (NS_FAILED(rv)) return -1;
rv = SEND_DATA("aaa");
if (NS_FAILED(rv)) return -1;
// Finish the request.
rv = converterListener->OnStopRequest(request, nullptr, rv);
if (NS_FAILED(rv)) return -1;
NS_RELEASE(converterListener);
#else
// SYNCHRONOUS conversion
nsCOMPtr<nsIInputStream> convertedData;
rv = StreamConvService->Convert(inputData, fromStr, toStr,
nullptr, getter_AddRefs(convertedData));
if (NS_FAILED(rv)) return -1;
#endif
// Enter the message pump to allow the URL load to proceed.
while ( gKeepRunning ) {
if (!NS_ProcessNextEvent(thread))
break;
}
} // this scopes the nsCOMPtrs
// no nsCOMPtrs are allowed to be alive when you call NS_ShutdownXPCOM
NS_ShutdownXPCOM(nullptr);
return 0;
}