зеркало из https://github.com/mozilla/gecko-dev.git
605 строки
16 KiB
C++
605 строки
16 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* vim: set ts=8 sts=4 et sw=4 tw=80:
|
|
* 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 <stdlib.h>
|
|
#include <errno.h>
|
|
#ifdef HAVE_IO_H
|
|
#include <io.h> /* for isatty() */
|
|
#endif
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h> /* for isatty() */
|
|
#endif
|
|
|
|
#include "base/basictypes.h"
|
|
|
|
#include "jsapi.h"
|
|
|
|
#include "xpcpublic.h"
|
|
|
|
#include "XPCShellEnvironment.h"
|
|
|
|
#include "mozilla/XPCOM.h"
|
|
|
|
#include "nsIChannel.h"
|
|
#include "nsIClassInfo.h"
|
|
#include "nsIDirectoryService.h"
|
|
#include "nsIPrincipal.h"
|
|
#include "nsIScriptSecurityManager.h"
|
|
#include "nsIURI.h"
|
|
#include "nsIXPConnect.h"
|
|
#include "nsIXPCScriptable.h"
|
|
|
|
#include "nsJSUtils.h"
|
|
#include "nsJSPrincipals.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsXULAppAPI.h"
|
|
|
|
#include "BackstagePass.h"
|
|
|
|
#include "TestShellChild.h"
|
|
#include "TestShellParent.h"
|
|
|
|
using mozilla::ipc::XPCShellEnvironment;
|
|
using mozilla::ipc::TestShellChild;
|
|
using mozilla::ipc::TestShellParent;
|
|
using mozilla::AutoSafeJSContext;
|
|
using namespace JS;
|
|
|
|
namespace {
|
|
|
|
static const char kDefaultRuntimeScriptFilename[] = "xpcshell.js";
|
|
|
|
class XPCShellDirProvider : public nsIDirectoryServiceProvider
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIDIRECTORYSERVICEPROVIDER
|
|
|
|
XPCShellDirProvider() { }
|
|
~XPCShellDirProvider() { }
|
|
|
|
bool SetGREDirs(const char *dir);
|
|
void ClearGREDirs() { mGREDir = nullptr;
|
|
mGREBinDir = nullptr; }
|
|
|
|
private:
|
|
nsCOMPtr<nsIFile> mGREDir;
|
|
nsCOMPtr<nsIFile> mGREBinDir;
|
|
};
|
|
|
|
inline XPCShellEnvironment*
|
|
Environment(Handle<JSObject*> global)
|
|
{
|
|
AutoSafeJSContext cx;
|
|
JSAutoCompartment ac(cx, global);
|
|
Rooted<Value> v(cx);
|
|
if (!JS_GetProperty(cx, global, "__XPCShellEnvironment", &v) ||
|
|
!v.get().isDouble())
|
|
{
|
|
return nullptr;
|
|
}
|
|
return static_cast<XPCShellEnvironment*>(v.get().toPrivate());
|
|
}
|
|
|
|
static bool
|
|
Print(JSContext *cx, unsigned argc, JS::Value *vp)
|
|
{
|
|
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
|
|
|
|
for (unsigned i = 0; i < args.length(); i++) {
|
|
JSString *str = JS::ToString(cx, args[i]);
|
|
if (!str)
|
|
return false;
|
|
JSAutoByteString bytes(cx, str);
|
|
if (!bytes)
|
|
return false;
|
|
fprintf(stdout, "%s%s", i ? " " : "", bytes.ptr());
|
|
fflush(stdout);
|
|
}
|
|
fputc('\n', stdout);
|
|
args.rval().setUndefined();
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
GetLine(char *bufp,
|
|
FILE *file,
|
|
const char *prompt)
|
|
{
|
|
char line[256];
|
|
fputs(prompt, stdout);
|
|
fflush(stdout);
|
|
if (!fgets(line, sizeof line, file))
|
|
return false;
|
|
strcpy(bufp, line);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
Dump(JSContext *cx, unsigned argc, JS::Value *vp)
|
|
{
|
|
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
|
|
|
|
if (!args.length())
|
|
return true;
|
|
|
|
JSString *str = JS::ToString(cx, args[0]);
|
|
if (!str)
|
|
return false;
|
|
JSAutoByteString bytes(cx, str);
|
|
if (!bytes)
|
|
return false;
|
|
|
|
fputs(bytes.ptr(), stdout);
|
|
fflush(stdout);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
Load(JSContext *cx,
|
|
unsigned argc,
|
|
JS::Value *vp)
|
|
{
|
|
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
|
|
|
|
JS::Rooted<JSObject*> obj(cx, JS_THIS_OBJECT(cx, vp));
|
|
if (!obj)
|
|
return false;
|
|
|
|
if (!JS_IsGlobalObject(obj)) {
|
|
JS_ReportError(cx, "Trying to load() into a non-global object");
|
|
return false;
|
|
}
|
|
|
|
for (unsigned i = 0; i < args.length(); i++) {
|
|
JS::Rooted<JSString*> str(cx, JS::ToString(cx, args[i]));
|
|
if (!str)
|
|
return false;
|
|
JSAutoByteString filename(cx, str);
|
|
if (!filename)
|
|
return false;
|
|
FILE *file = fopen(filename.ptr(), "r");
|
|
if (!file) {
|
|
JS_ReportError(cx, "cannot open file '%s' for reading", filename.ptr());
|
|
return false;
|
|
}
|
|
JS::CompileOptions options(cx);
|
|
options.setUTF8(true)
|
|
.setFileAndLine(filename.ptr(), 1);
|
|
JS::Rooted<JSScript*> script(cx);
|
|
bool ok = JS::Compile(cx, options, file, &script);
|
|
fclose(file);
|
|
if (!ok)
|
|
return false;
|
|
|
|
if (!JS_ExecuteScript(cx, script)) {
|
|
return false;
|
|
}
|
|
}
|
|
args.rval().setUndefined();
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
Version(JSContext *cx,
|
|
unsigned argc,
|
|
JS::Value *vp)
|
|
{
|
|
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
|
|
args.rval().setInt32(JS_GetVersion(cx));
|
|
if (args.get(0).isInt32())
|
|
JS_SetVersionForCompartment(js::GetContextCompartment(cx),
|
|
JSVersion(args[0].toInt32()));
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
Quit(JSContext *cx,
|
|
unsigned argc,
|
|
JS::Value *vp)
|
|
{
|
|
Rooted<JSObject*> global(cx, JS::CurrentGlobalOrNull(cx));
|
|
XPCShellEnvironment* env = Environment(global);
|
|
env->SetIsQuitting();
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
DumpXPC(JSContext *cx,
|
|
unsigned argc,
|
|
JS::Value *vp)
|
|
{
|
|
JS::CallArgs args = CallArgsFromVp(argc, vp);
|
|
|
|
uint16_t depth = 2;
|
|
if (args.length() > 0) {
|
|
if (!JS::ToUint16(cx, args[0], &depth))
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID());
|
|
if (xpc)
|
|
xpc->DebugDump(int16_t(depth));
|
|
args.rval().setUndefined();
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
GC(JSContext *cx,
|
|
unsigned argc,
|
|
JS::Value *vp)
|
|
{
|
|
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
|
|
|
|
JSRuntime *rt = JS_GetRuntime(cx);
|
|
JS_GC(rt);
|
|
#ifdef JS_GCMETER
|
|
js_DumpGCStats(rt, stdout);
|
|
#endif
|
|
args.rval().setUndefined();
|
|
return true;
|
|
}
|
|
|
|
#ifdef JS_GC_ZEAL
|
|
static bool
|
|
GCZeal(JSContext *cx, unsigned argc, JS::Value *vp)
|
|
{
|
|
CallArgs args = CallArgsFromVp(argc, vp);
|
|
|
|
uint32_t zeal;
|
|
if (!ToUint32(cx, args.get(0), &zeal))
|
|
return false;
|
|
|
|
JS_SetGCZeal(cx, uint8_t(zeal), JS_DEFAULT_ZEAL_FREQ);
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
const JSFunctionSpec gGlobalFunctions[] =
|
|
{
|
|
JS_FS("print", Print, 0,0),
|
|
JS_FS("load", Load, 1,0),
|
|
JS_FS("quit", Quit, 0,0),
|
|
JS_FS("version", Version, 1,0),
|
|
JS_FS("dumpXPC", DumpXPC, 1,0),
|
|
JS_FS("dump", Dump, 1,0),
|
|
JS_FS("gc", GC, 0,0),
|
|
#ifdef JS_GC_ZEAL
|
|
JS_FS("gczeal", GCZeal, 1,0),
|
|
#endif
|
|
JS_FS_END
|
|
};
|
|
|
|
typedef enum JSShellErrNum
|
|
{
|
|
#define MSG_DEF(name, number, count, exception, format) \
|
|
name = number,
|
|
#include "jsshell.msg"
|
|
#undef MSG_DEF
|
|
JSShellErr_Limit
|
|
#undef MSGDEF
|
|
} JSShellErrNum;
|
|
|
|
} /* anonymous namespace */
|
|
|
|
void
|
|
XPCShellEnvironment::ProcessFile(JSContext *cx,
|
|
const char *filename,
|
|
FILE *file,
|
|
bool forceTTY)
|
|
{
|
|
XPCShellEnvironment* env = this;
|
|
|
|
JS::Rooted<JS::Value> result(cx);
|
|
int lineno, startline;
|
|
bool ok, hitEOF;
|
|
char *bufp, buffer[4096];
|
|
JSString *str;
|
|
|
|
JS::Rooted<JSObject*> global(cx, JS::CurrentGlobalOrNull(cx));
|
|
MOZ_ASSERT(global);
|
|
|
|
if (forceTTY) {
|
|
file = stdin;
|
|
}
|
|
else if (!isatty(fileno(file)))
|
|
{
|
|
/*
|
|
* It's not interactive - just execute it.
|
|
*
|
|
* Support the UNIX #! shell hack; gobble the first line if it starts
|
|
* with '#'. TODO - this isn't quite compatible with sharp variables,
|
|
* as a legal js program (using sharp variables) might start with '#'.
|
|
* But that would require multi-character lookahead.
|
|
*/
|
|
int ch = fgetc(file);
|
|
if (ch == '#') {
|
|
while((ch = fgetc(file)) != EOF) {
|
|
if(ch == '\n' || ch == '\r')
|
|
break;
|
|
}
|
|
}
|
|
ungetc(ch, file);
|
|
|
|
JS::CompileOptions options(cx);
|
|
options.setUTF8(true)
|
|
.setFileAndLine(filename, 1);
|
|
JS::Rooted<JSScript*> script(cx);
|
|
if (JS::Compile(cx, options, file, &script))
|
|
(void)JS_ExecuteScript(cx, script, &result);
|
|
|
|
return;
|
|
}
|
|
|
|
/* It's an interactive filehandle; drop into read-eval-print loop. */
|
|
lineno = 1;
|
|
hitEOF = false;
|
|
do {
|
|
bufp = buffer;
|
|
*bufp = '\0';
|
|
|
|
/*
|
|
* Accumulate lines until we get a 'compilable unit' - one that either
|
|
* generates an error (before running out of source) or that compiles
|
|
* cleanly. This should be whenever we get a complete statement that
|
|
* coincides with the end of a line.
|
|
*/
|
|
startline = lineno;
|
|
do {
|
|
if (!GetLine(bufp, file, startline == lineno ? "js> " : "")) {
|
|
hitEOF = true;
|
|
break;
|
|
}
|
|
bufp += strlen(bufp);
|
|
lineno++;
|
|
} while (!JS_BufferIsCompilableUnit(cx, global, buffer, strlen(buffer)));
|
|
|
|
/* Clear any pending exception from previous failed compiles. */
|
|
JS_ClearPendingException(cx);
|
|
JS::CompileOptions options(cx);
|
|
options.setFileAndLine("typein", startline);
|
|
JS::Rooted<JSScript*> script(cx);
|
|
if (JS_CompileScript(cx, buffer, strlen(buffer), options, &script)) {
|
|
JSErrorReporter older;
|
|
|
|
ok = JS_ExecuteScript(cx, script, &result);
|
|
if (ok && !result.isUndefined()) {
|
|
/* Suppress error reports from JS::ToString(). */
|
|
older = JS_SetErrorReporter(JS_GetRuntime(cx), nullptr);
|
|
str = JS::ToString(cx, result);
|
|
JSAutoByteString bytes;
|
|
if (str)
|
|
bytes.encodeLatin1(cx, str);
|
|
JS_SetErrorReporter(JS_GetRuntime(cx), older);
|
|
|
|
if (!!bytes)
|
|
fprintf(stdout, "%s\n", bytes.ptr());
|
|
else
|
|
ok = false;
|
|
}
|
|
}
|
|
} while (!hitEOF && !env->IsQuitting());
|
|
|
|
fprintf(stdout, "\n");
|
|
}
|
|
|
|
NS_IMETHODIMP_(MozExternalRefCountType)
|
|
XPCShellDirProvider::AddRef()
|
|
{
|
|
return 2;
|
|
}
|
|
|
|
NS_IMETHODIMP_(MozExternalRefCountType)
|
|
XPCShellDirProvider::Release()
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
NS_IMPL_QUERY_INTERFACE(XPCShellDirProvider, nsIDirectoryServiceProvider)
|
|
|
|
bool
|
|
XPCShellDirProvider::SetGREDirs(const char *dir)
|
|
{
|
|
nsresult rv = XRE_GetFileFromPath(dir, getter_AddRefs(mGREDir));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
mGREDir->Clone(getter_AddRefs(mGREBinDir));
|
|
#ifdef XP_MACOSX
|
|
mGREBinDir->SetNativeLeafName(NS_LITERAL_CSTRING("MacOS"));
|
|
#endif
|
|
}
|
|
return NS_SUCCEEDED(rv);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
XPCShellDirProvider::GetFile(const char *prop,
|
|
bool *persistent,
|
|
nsIFile* *result)
|
|
{
|
|
if (mGREDir && !strcmp(prop, NS_GRE_DIR)) {
|
|
*persistent = true;
|
|
NS_ADDREF(*result = mGREDir);
|
|
return NS_OK;
|
|
} else if (mGREBinDir && !strcmp(prop, NS_GRE_BIN_DIR)) {
|
|
*persistent = true;
|
|
NS_ADDREF(*result = mGREBinDir);
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// static
|
|
XPCShellEnvironment*
|
|
XPCShellEnvironment::CreateEnvironment()
|
|
{
|
|
XPCShellEnvironment* env = new XPCShellEnvironment();
|
|
if (env && !env->Init()) {
|
|
delete env;
|
|
env = nullptr;
|
|
}
|
|
return env;
|
|
}
|
|
|
|
XPCShellEnvironment::XPCShellEnvironment()
|
|
: mQuitting(false)
|
|
{
|
|
}
|
|
|
|
XPCShellEnvironment::~XPCShellEnvironment()
|
|
{
|
|
|
|
AutoSafeJSContext cx;
|
|
Rooted<JSObject*> global(cx, GetGlobalObject());
|
|
if (global) {
|
|
{
|
|
JSAutoCompartment ac(cx, global);
|
|
JS_SetAllNonReservedSlotsToUndefined(cx, global);
|
|
}
|
|
mGlobalHolder.reset();
|
|
|
|
JSRuntime *rt = JS_GetRuntime(cx);
|
|
JS_GC(rt);
|
|
}
|
|
}
|
|
|
|
bool
|
|
XPCShellEnvironment::Init()
|
|
{
|
|
nsresult rv;
|
|
|
|
// unbuffer stdout so that output is in the correct order; note that stderr
|
|
// is unbuffered by default
|
|
setbuf(stdout, 0);
|
|
|
|
JSRuntime *rt = xpc::GetJSRuntime();
|
|
if (!rt) {
|
|
NS_ERROR("failed to get JSRuntime from nsJSRuntimeService!");
|
|
return false;
|
|
}
|
|
|
|
mGlobalHolder.init(rt);
|
|
|
|
AutoSafeJSContext cx;
|
|
|
|
JS_SetContextPrivate(cx, this);
|
|
|
|
nsCOMPtr<nsIXPConnect> xpc =
|
|
do_GetService(nsIXPConnect::GetCID());
|
|
if (!xpc) {
|
|
NS_ERROR("failed to get nsXPConnect service!");
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
nsCOMPtr<nsIScriptSecurityManager> securityManager =
|
|
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
|
|
if (NS_SUCCEEDED(rv) && securityManager) {
|
|
rv = securityManager->GetSystemPrincipal(getter_AddRefs(principal));
|
|
if (NS_FAILED(rv)) {
|
|
fprintf(stderr, "+++ Failed to obtain SystemPrincipal from ScriptSecurityManager service.\n");
|
|
}
|
|
} else {
|
|
fprintf(stderr, "+++ Failed to get ScriptSecurityManager service, running without principals");
|
|
}
|
|
|
|
RefPtr<BackstagePass> backstagePass;
|
|
rv = NS_NewBackstagePass(getter_AddRefs(backstagePass));
|
|
if (NS_FAILED(rv)) {
|
|
NS_ERROR("Failed to create backstage pass!");
|
|
return false;
|
|
}
|
|
|
|
JS::CompartmentOptions options;
|
|
options.creationOptions().setZone(JS::SystemZone);
|
|
options.behaviors().setVersion(JSVERSION_LATEST);
|
|
if (xpc::SharedMemoryEnabled())
|
|
options.creationOptions().setSharedMemoryAndAtomicsEnabled(true);
|
|
|
|
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
|
|
rv = xpc->InitClassesWithNewWrappedGlobal(cx,
|
|
static_cast<nsIGlobalObject *>(backstagePass),
|
|
principal, 0,
|
|
options,
|
|
getter_AddRefs(holder));
|
|
if (NS_FAILED(rv)) {
|
|
NS_ERROR("InitClassesWithNewWrappedGlobal failed!");
|
|
return false;
|
|
}
|
|
|
|
JS::Rooted<JSObject*> globalObj(cx, holder->GetJSObject());
|
|
if (!globalObj) {
|
|
NS_ERROR("Failed to get global JSObject!");
|
|
return false;
|
|
}
|
|
JSAutoCompartment ac(cx, globalObj);
|
|
|
|
backstagePass->SetGlobalObject(globalObj);
|
|
|
|
JS::Rooted<Value> privateVal(cx, PrivateValue(this));
|
|
if (!JS_DefineProperty(cx, globalObj, "__XPCShellEnvironment",
|
|
privateVal,
|
|
JSPROP_READONLY | JSPROP_PERMANENT,
|
|
JS_STUBGETTER, JS_STUBSETTER) ||
|
|
!JS_DefineFunctions(cx, globalObj, gGlobalFunctions) ||
|
|
!JS_DefineProfilingFunctions(cx, globalObj))
|
|
{
|
|
NS_ERROR("JS_DefineFunctions failed!");
|
|
return false;
|
|
}
|
|
|
|
mGlobalHolder = globalObj;
|
|
|
|
FILE* runtimeScriptFile = fopen(kDefaultRuntimeScriptFilename, "r");
|
|
if (runtimeScriptFile) {
|
|
fprintf(stdout, "[loading '%s'...]\n", kDefaultRuntimeScriptFilename);
|
|
ProcessFile(cx, kDefaultRuntimeScriptFilename,
|
|
runtimeScriptFile, false);
|
|
fclose(runtimeScriptFile);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
XPCShellEnvironment::EvaluateString(const nsString& aString,
|
|
nsString* aResult)
|
|
{
|
|
AutoSafeJSContext cx;
|
|
JS::Rooted<JSObject*> global(cx, GetGlobalObject());
|
|
JSAutoCompartment ac(cx, global);
|
|
|
|
JS::CompileOptions options(cx);
|
|
options.setFileAndLine("typein", 0);
|
|
JS::Rooted<JSScript*> script(cx);
|
|
if (!JS_CompileUCScript(cx, aString.get(), aString.Length(), options,
|
|
&script))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (aResult) {
|
|
aResult->Truncate();
|
|
}
|
|
|
|
JS::Rooted<JS::Value> result(cx);
|
|
bool ok = JS_ExecuteScript(cx, script, &result);
|
|
if (ok && !result.isUndefined()) {
|
|
JSErrorReporter old = JS_SetErrorReporter(JS_GetRuntime(cx), nullptr);
|
|
JSString* str = JS::ToString(cx, result);
|
|
nsAutoJSString autoStr;
|
|
if (str)
|
|
autoStr.init(cx, str);
|
|
JS_SetErrorReporter(JS_GetRuntime(cx), old);
|
|
|
|
if (!autoStr.IsEmpty() && aResult) {
|
|
aResult->Assign(autoStr);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|