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gecko/js/xpconnect/shell/xpcshell.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=2 sw=4 et 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/. */
/* XPConnect JavaScript interactive shell. */
#include <stdio.h>
#include "mozilla/Util.h"
#include "jsapi.h"
#include "jsdbgapi.h"
#include "jsfriendapi.h"
#include "jsprf.h"
#include "nsXULAppAPI.h"
#include "nsServiceManagerUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsStringAPI.h"
#include "nsIXPConnect.h"
#include "nsIXPCScriptable.h"
#include "nsIInterfaceInfo.h"
#include "nsIInterfaceInfoManager.h"
#include "nsIXPCScriptable.h"
#include "nsIServiceManager.h"
#include "nsIComponentManager.h"
#include "nsIComponentRegistrar.h"
#include "nsIFile.h"
#include "nsStringAPI.h"
#include "nsIDirectoryService.h"
#include "nsDirectoryServiceDefs.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nscore.h"
#include "nsArrayEnumerator.h"
#include "nsCOMArray.h"
#include "nsDirectoryServiceUtils.h"
#include "nsMemory.h"
#include "nsISupportsImpl.h"
#include "nsIJSRuntimeService.h"
#include "nsCOMPtr.h"
#include "nsAutoPtr.h"
#include "nsIXPCSecurityManager.h"
#include "nsJSPrincipals.h"
#include "xpcpublic.h"
#include "nsXULAppAPI.h"
#include "BackstagePass.h"
#ifdef XP_MACOSX
#include "xpcshellMacUtils.h"
#endif
#ifdef XP_WIN
#include <windows.h>
#include <shlobj.h>
// we want a wmain entry point
#define XRE_DONT_PROTECT_DLL_LOAD
#define XRE_WANT_ENVIRON
#include "nsWindowsWMain.cpp"
#define snprintf _snprintf
#define strcasecmp _stricmp
#endif
#ifdef ANDROID
#include <android/log.h>
#endif
#include "nsIScriptSecurityManager.h"
#include "nsIPrincipal.h"
// all this crap is needed to do the interactive shell stuff
#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 "nsIJSContextStack.h"
#ifdef MOZ_CRASHREPORTER
#include "nsICrashReporter.h"
#endif
using namespace mozilla;
class XPCShellDirProvider : public nsIDirectoryServiceProvider2
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIDIRECTORYSERVICEPROVIDER
NS_DECL_NSIDIRECTORYSERVICEPROVIDER2
XPCShellDirProvider() { }
~XPCShellDirProvider() { }
// The platform resource folder
bool SetGREDir(const char *dir);
void ClearGREDir() { mGREDir = nullptr; }
// The application resource folder
void SetAppDir(nsIFile *appFile);
void ClearAppDir() { mAppDir = nullptr; }
// The app executable
void SetAppFile(nsIFile *appFile);
void ClearAppFile() { mAppFile = nullptr; }
// An additional custom plugin dir if specified
void SetPluginDir(nsIFile* pluginDir);
void ClearPluginDir() { mPluginDir = nullptr; }
private:
nsCOMPtr<nsIFile> mGREDir;
nsCOMPtr<nsIFile> mAppDir;
nsCOMPtr<nsIFile> mPluginDir;
nsCOMPtr<nsIFile> mAppFile;
};
/***************************************************************************/
#ifdef JS_THREADSAFE
#define DoBeginRequest(cx) JS_BeginRequest((cx))
#define DoEndRequest(cx) JS_EndRequest((cx))
#else
#define DoBeginRequest(cx) ((void)0)
#define DoEndRequest(cx) ((void)0)
#endif
/***************************************************************************/
static const char kXPConnectServiceContractID[] = "@mozilla.org/js/xpc/XPConnect;1";
#define EXITCODE_RUNTIME_ERROR 3
#define EXITCODE_FILE_NOT_FOUND 4
FILE *gOutFile = NULL;
FILE *gErrFile = NULL;
FILE *gInFile = NULL;
int gExitCode = 0;
JSBool gQuitting = false;
static JSBool reportWarnings = true;
static JSBool compileOnly = false;
JSPrincipals *gJSPrincipals = nullptr;
nsAutoString *gWorkingDirectory = nullptr;
static JSBool
GetLocationProperty(JSContext *cx, JSHandleObject obj, JSHandleId id, JSMutableHandleValue vp)
{
#if !defined(XP_WIN) && !defined(XP_UNIX)
//XXX: your platform should really implement this
return false;
#else
JSScript *script;
JS_DescribeScriptedCaller(cx, &script, NULL);
const char *filename = JS_GetScriptFilename(cx, script);
if (filename) {
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc =
do_GetService(kXPConnectServiceContractID, &rv);
#if defined(XP_WIN)
// convert from the system codepage to UTF-16
int bufferSize = MultiByteToWideChar(CP_ACP, 0, filename,
-1, NULL, 0);
nsAutoString filenameString;
filenameString.SetLength(bufferSize);
MultiByteToWideChar(CP_ACP, 0, filename,
-1, (LPWSTR)filenameString.BeginWriting(),
filenameString.Length());
// remove the null terminator
filenameString.SetLength(bufferSize - 1);
// replace forward slashes with backslashes,
// since nsLocalFileWin chokes on them
PRUnichar *start, *end;
filenameString.BeginWriting(&start, &end);
while (start != end) {
if (*start == L'/')
*start = L'\\';
start++;
}
#elif defined(XP_UNIX)
NS_ConvertUTF8toUTF16 filenameString(filename);
#endif
nsCOMPtr<nsIFile> location;
if (NS_SUCCEEDED(rv)) {
rv = NS_NewLocalFile(filenameString,
false, getter_AddRefs(location));
}
if (!location && gWorkingDirectory) {
// could be a relative path, try appending it to the cwd
// and then normalize
nsAutoString absolutePath(*gWorkingDirectory);
absolutePath.Append(filenameString);
rv = NS_NewLocalFile(absolutePath,
false, getter_AddRefs(location));
}
if (location) {
nsCOMPtr<nsIXPConnectJSObjectHolder> locationHolder;
JSObject *locationObj = NULL;
bool symlink;
// don't normalize symlinks, because that's kind of confusing
if (NS_SUCCEEDED(location->IsSymlink(&symlink)) &&
!symlink)
location->Normalize();
rv = xpc->WrapNative(cx, obj, location,
NS_GET_IID(nsIFile),
getter_AddRefs(locationHolder));
if (NS_SUCCEEDED(rv) &&
NS_SUCCEEDED(locationHolder->GetJSObject(&locationObj))) {
vp.set(OBJECT_TO_JSVAL(locationObj));
}
}
}
return true;
#endif
}
#ifdef EDITLINE
extern "C" {
extern JS_EXPORT_API(char *) readline(const char *prompt);
extern JS_EXPORT_API(void) add_history(char *line);
}
#endif
static JSBool
GetLine(JSContext *cx, char *bufp, FILE *file, const char *prompt) {
#ifdef EDITLINE
/*
* Use readline only if file is stdin, because there's no way to specify
* another handle. Are other filehandles interactive?
*/
if (file == stdin) {
char *linep = readline(prompt);
if (!linep)
return false;
if (*linep)
add_history(linep);
strcpy(bufp, linep);
JS_free(cx, linep);
bufp += strlen(bufp);
*bufp++ = '\n';
*bufp = '\0';
} else
#endif
{
char line[256] = { '\0' };
fputs(prompt, gOutFile);
fflush(gOutFile);
if ((!fgets(line, sizeof line, file) && errno != EINTR) || feof(file))
return false;
strcpy(bufp, line);
}
return true;
}
static void
my_ErrorReporter(JSContext *cx, const char *message, JSErrorReport *report)
{
int i, j, k, n;
char *prefix = NULL, *tmp;
const char *ctmp;
nsCOMPtr<nsIXPConnect> xpc;
// Don't report an exception from inner JS frames as the callers may intend
// to handle it.
if (JS_DescribeScriptedCaller(cx, nullptr, nullptr)) {
return;
}
// In some cases cx->fp is null here so use XPConnect to tell us about inner
// frames.
if ((xpc = do_GetService(nsIXPConnect::GetCID()))) {
nsAXPCNativeCallContext *cc = nullptr;
xpc->GetCurrentNativeCallContext(&cc);
if (cc) {
nsAXPCNativeCallContext *prev = cc;
while (NS_SUCCEEDED(prev->GetPreviousCallContext(&prev)) && prev) {
uint16_t lang;
if (NS_SUCCEEDED(prev->GetLanguage(&lang)) &&
lang == nsAXPCNativeCallContext::LANG_JS) {
return;
}
}
}
}
if (!report) {
fprintf(gErrFile, "%s\n", message);
return;
}
/* Conditionally ignore reported warnings. */
if (JSREPORT_IS_WARNING(report->flags) && !reportWarnings)
return;
if (report->filename)
prefix = JS_smprintf("%s:", report->filename);
if (report->lineno) {
tmp = prefix;
prefix = JS_smprintf("%s%u: ", tmp ? tmp : "", report->lineno);
JS_free(cx, tmp);
}
if (JSREPORT_IS_WARNING(report->flags)) {
tmp = prefix;
prefix = JS_smprintf("%s%swarning: ",
tmp ? tmp : "",
JSREPORT_IS_STRICT(report->flags) ? "strict " : "");
JS_free(cx, tmp);
}
/* embedded newlines -- argh! */
while ((ctmp = strchr(message, '\n')) != 0) {
ctmp++;
if (prefix) fputs(prefix, gErrFile);
fwrite(message, 1, ctmp - message, gErrFile);
message = ctmp;
}
/* If there were no filename or lineno, the prefix might be empty */
if (prefix)
fputs(prefix, gErrFile);
fputs(message, gErrFile);
if (!report->linebuf) {
fputc('\n', gErrFile);
goto out;
}
fprintf(gErrFile, ":\n%s%s\n%s", prefix, report->linebuf, prefix);
n = report->tokenptr - report->linebuf;
for (i = j = 0; i < n; i++) {
if (report->linebuf[i] == '\t') {
for (k = (j + 8) & ~7; j < k; j++) {
fputc('.', gErrFile);
}
continue;
}
fputc('.', gErrFile);
j++;
}
fputs("^\n", gErrFile);
out:
if (!JSREPORT_IS_WARNING(report->flags))
gExitCode = EXITCODE_RUNTIME_ERROR;
JS_free(cx, prefix);
}
static JSBool
ReadLine(JSContext *cx, unsigned argc, jsval *vp)
{
// While 4096 might be quite arbitrary, this is something to be fixed in
// bug 105707. It is also the same limit as in ProcessFile.
char buf[4096];
JSString *str;
/* If a prompt was specified, construct the string */
if (argc > 0) {
str = JS_ValueToString(cx, JS_ARGV(cx, vp)[0]);
if (!str)
return false;
} else {
str = JSVAL_TO_STRING(JS_GetEmptyStringValue(cx));
}
/* Get a line from the infile */
JSAutoByteString strBytes(cx, str);
if (!strBytes || !GetLine(cx, buf, gInFile, strBytes.ptr()))
return false;
/* Strip newline character added by GetLine() */
unsigned int buflen = strlen(buf);
if (buflen == 0) {
if (feof(gInFile)) {
JS_SET_RVAL(cx, vp, JSVAL_NULL);
return true;
}
} else if (buf[buflen - 1] == '\n') {
--buflen;
}
/* Turn buf into a JSString */
str = JS_NewStringCopyN(cx, buf, buflen);
if (!str)
return false;
JS_SET_RVAL(cx, vp, STRING_TO_JSVAL(str));
return true;
}
static JSBool
Print(JSContext *cx, unsigned argc, jsval *vp)
{
unsigned i, n;
JSString *str;
jsval *argv = JS_ARGV(cx, vp);
for (i = n = 0; i < argc; i++) {
str = JS_ValueToString(cx, argv[i]);
if (!str)
return false;
JSAutoByteString strBytes(cx, str);
if (!strBytes)
return false;
fprintf(gOutFile, "%s%s", i ? " " : "", strBytes.ptr());
fflush(gOutFile);
}
n++;
if (n)
fputc('\n', gOutFile);
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
static JSBool
Dump(JSContext *cx, unsigned argc, jsval *vp)
{
JS_SET_RVAL(cx, vp, JSVAL_VOID);
JSString *str;
if (!argc)
return true;
str = JS_ValueToString(cx, JS_ARGV(cx, vp)[0]);
if (!str)
return false;
JSAutoByteString bytes(cx, str);
if (!bytes)
return false;
#ifdef ANDROID
__android_log_print(ANDROID_LOG_INFO, "Gecko", "%s", bytes.ptr());
#endif
fputs(bytes.ptr(), gOutFile);
fflush(gOutFile);
return true;
}
static JSBool
Load(JSContext *cx, unsigned argc, jsval *vp)
{
JSObject *obj = JS_THIS_OBJECT(cx, vp);
if (!obj)
return false;
jsval *argv = JS_ARGV(cx, vp);
for (unsigned i = 0; i < argc; i++) {
JSString *str = JS_ValueToString(cx, argv[i]);
if (!str)
return false;
argv[i] = STRING_TO_JSVAL(str);
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)
.setPrincipals(gJSPrincipals);
JS::RootedObject rootedObj(cx, obj);
JSScript *script = JS::Compile(cx, rootedObj, options, file);
fclose(file);
if (!script)
return false;
jsval result;
if (!compileOnly && !JS_ExecuteScript(cx, obj, script, &result))
return false;
}
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
static JSBool
Version(JSContext *cx, unsigned argc, jsval *vp)
{
if (argc > 0 && JSVAL_IS_INT(JS_ARGV(cx, vp)[0]))
JS_SET_RVAL(cx, vp, INT_TO_JSVAL(JS_SetVersion(cx, JSVersion(JSVAL_TO_INT(JS_ARGV(cx, vp)[0])))));
else
JS_SET_RVAL(cx, vp, INT_TO_JSVAL(JS_GetVersion(cx)));
return true;
}
static JSBool
BuildDate(JSContext *cx, unsigned argc, jsval *vp)
{
fprintf(gOutFile, "built on %s at %s\n", __DATE__, __TIME__);
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
static JSBool
Quit(JSContext *cx, unsigned argc, jsval *vp)
{
gExitCode = 0;
JS_ConvertArguments(cx, argc, JS_ARGV(cx, vp),"/ i", &gExitCode);
gQuitting = true;
// exit(0);
return false;
}
static JSBool
DumpXPC(JSContext *cx, unsigned argc, jsval *vp)
{
int32_t depth = 2;
if (argc > 0) {
if (!JS_ValueToInt32(cx, JS_ARGV(cx, vp)[0], &depth))
return false;
}
nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID());
if (xpc)
xpc->DebugDump(int16_t(depth));
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
static JSBool
GC(JSContext *cx, unsigned argc, jsval *vp)
{
JSRuntime *rt = JS_GetRuntime(cx);
JS_GC(rt);
#ifdef JS_GCMETER
js_DumpGCStats(rt, stdout);
#endif
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
#ifdef JS_GC_ZEAL
static JSBool
GCZeal(JSContext *cx, unsigned argc, jsval *vp)
{
uint32_t zeal;
if (!JS_ValueToECMAUint32(cx, argc ? JS_ARGV(cx, vp)[0] : JSVAL_VOID, &zeal))
return false;
JS_SetGCZeal(cx, uint8_t(zeal), JS_DEFAULT_ZEAL_FREQ);
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
#endif
#ifdef DEBUG
static JSBool
DumpHeap(JSContext *cx, unsigned argc, jsval *vp)
{
void* startThing = NULL;
JSGCTraceKind startTraceKind = JSTRACE_OBJECT;
void *thingToFind = NULL;
size_t maxDepth = (size_t)-1;
void *thingToIgnore = NULL;
FILE *dumpFile;
JSBool ok;
jsval *argv = JS_ARGV(cx, vp);
JS_SET_RVAL(cx, vp, JSVAL_VOID);
vp = argv + 0;
JSAutoByteString fileName;
if (argc > 0 && *vp != JSVAL_NULL && *vp != JSVAL_VOID) {
JSString *str;
str = JS_ValueToString(cx, *vp);
if (!str)
return false;
*vp = STRING_TO_JSVAL(str);
if (!fileName.encodeLatin1(cx, str))
return false;
}
vp = argv + 1;
if (argc > 1 && *vp != JSVAL_NULL && *vp != JSVAL_VOID) {
if (!JSVAL_IS_TRACEABLE(*vp))
goto not_traceable_arg;
startThing = JSVAL_TO_TRACEABLE(*vp);
startTraceKind = JSVAL_TRACE_KIND(*vp);
}
vp = argv + 2;
if (argc > 2 && *vp != JSVAL_NULL && *vp != JSVAL_VOID) {
if (!JSVAL_IS_TRACEABLE(*vp))
goto not_traceable_arg;
thingToFind = JSVAL_TO_TRACEABLE(*vp);
}
vp = argv + 3;
if (argc > 3 && *vp != JSVAL_NULL && *vp != JSVAL_VOID) {
uint32_t depth;
if (!JS_ValueToECMAUint32(cx, *vp, &depth))
return false;
maxDepth = depth;
}
vp = argv + 4;
if (argc > 4 && *vp != JSVAL_NULL && *vp != JSVAL_VOID) {
if (!JSVAL_IS_TRACEABLE(*vp))
goto not_traceable_arg;
thingToIgnore = JSVAL_TO_TRACEABLE(*vp);
}
if (!fileName) {
dumpFile = gOutFile;
} else {
dumpFile = fopen(fileName.ptr(), "w");
if (!dumpFile) {
fprintf(gErrFile, "dumpHeap: can't open %s: %s\n",
fileName.ptr(), strerror(errno));
return false;
}
}
ok = JS_DumpHeap(JS_GetRuntime(cx), dumpFile, startThing, startTraceKind, thingToFind,
maxDepth, thingToIgnore);
if (dumpFile != gOutFile)
fclose(dumpFile);
if (!ok)
JS_ReportOutOfMemory(cx);
return ok;
not_traceable_arg:
fprintf(gErrFile,
"dumpHeap: argument %u is not null or a heap-allocated thing\n",
(unsigned)(vp - argv));
return false;
}
#endif /* DEBUG */
static JSBool
SendCommand(JSContext* cx,
unsigned argc,
jsval* vp)
{
if (argc == 0) {
JS_ReportError(cx, "Function takes at least one argument!");
return false;
}
jsval *argv = JS_ARGV(cx, vp);
JSString* str = JS_ValueToString(cx, argv[0]);
if (!str) {
JS_ReportError(cx, "Could not convert argument 1 to string!");
return false;
}
if (argc > 1 && JS_TypeOfValue(cx, argv[1]) != JSTYPE_FUNCTION) {
JS_ReportError(cx, "Could not convert argument 2 to function!");
return false;
}
if (!XRE_SendTestShellCommand(cx, str, argc > 1 ? &argv[1] : nullptr)) {
JS_ReportError(cx, "Couldn't send command!");
return false;
}
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
static JSBool
GetChildGlobalObject(JSContext* cx,
unsigned,
jsval* vp)
{
JSObject* global;
if (XRE_GetChildGlobalObject(cx, &global)) {
JS_SET_RVAL(cx, vp, OBJECT_TO_JSVAL(global));
return true;
}
return false;
}
/*
* JSContext option name to flag map. The option names are in alphabetical
* order for better reporting.
*/
static const struct JSOption {
const char *name;
uint32_t flag;
} js_options[] = {
{"strict", JSOPTION_STRICT},
{"werror", JSOPTION_WERROR},
{"strict_mode", JSOPTION_STRICT_MODE},
};
static uint32_t
MapContextOptionNameToFlag(JSContext* cx, const char* name)
{
for (size_t i = 0; i < ArrayLength(js_options); ++i) {
if (strcmp(name, js_options[i].name) == 0)
return js_options[i].flag;
}
char* msg = JS_sprintf_append(NULL,
"unknown option name '%s'."
" The valid names are ", name);
for (size_t i = 0; i < ArrayLength(js_options); ++i) {
if (!msg)
break;
msg = JS_sprintf_append(msg, "%s%s", js_options[i].name,
(i + 2 < ArrayLength(js_options)
? ", "
: i + 2 == ArrayLength(js_options)
? " and "
: "."));
}
if (!msg) {
JS_ReportOutOfMemory(cx);
} else {
JS_ReportError(cx, msg);
free(msg);
}
return 0;
}
static JSBool
Options(JSContext *cx, unsigned argc, jsval *vp)
{
uint32_t optset, flag;
JSString *str;
char *names;
JSBool found;
optset = 0;
jsval *argv = JS_ARGV(cx, vp);
for (unsigned i = 0; i < argc; i++) {
str = JS_ValueToString(cx, argv[i]);
if (!str)
return false;
argv[i] = STRING_TO_JSVAL(str);
JSAutoByteString opt(cx, str);
if (!opt)
return false;
flag = MapContextOptionNameToFlag(cx, opt.ptr());
if (!flag)
return false;
optset |= flag;
}
optset = JS_ToggleOptions(cx, optset);
names = NULL;
found = false;
for (size_t i = 0; i < ArrayLength(js_options); i++) {
if (js_options[i].flag & optset) {
found = true;
names = JS_sprintf_append(names, "%s%s",
names ? "," : "", js_options[i].name);
if (!names)
break;
}
}
if (!found)
names = strdup("");
if (!names) {
JS_ReportOutOfMemory(cx);
return false;
}
str = JS_NewStringCopyZ(cx, names);
free(names);
if (!str)
return false;
JS_SET_RVAL(cx, vp, STRING_TO_JSVAL(str));
return true;
}
static JSBool
Parent(JSContext *cx, unsigned argc, jsval *vp)
{
if (argc != 1) {
JS_ReportError(cx, "Wrong number of arguments");
return false;
}
jsval v = JS_ARGV(cx, vp)[0];
if (JSVAL_IS_PRIMITIVE(v)) {
JS_ReportError(cx, "Only objects have parents!");
return false;
}
*vp = OBJECT_TO_JSVAL(JS_GetParent(JSVAL_TO_OBJECT(v)));
return true;
}
static JSBool
Atob(JSContext *cx, unsigned argc, jsval *vp)
{
if (!argc)
return true;
return xpc::Base64Decode(cx, JS_ARGV(cx, vp)[0], &JS_RVAL(cx, vp));
}
static JSBool
Btoa(JSContext *cx, unsigned argc, jsval *vp)
{
if (!argc)
return true;
return xpc::Base64Encode(cx, JS_ARGV(cx, vp)[0], &JS_RVAL(cx, vp));
}
static JSFunctionSpec glob_functions[] = {
JS_FS("print", Print, 0,0),
JS_FS("readline", ReadLine, 1,0),
JS_FS("load", Load, 1,0),
JS_FS("quit", Quit, 0,0),
JS_FS("version", Version, 1,0),
JS_FS("build", BuildDate, 0,0),
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("options", Options, 0,0),
JS_FN("parent", Parent, 1,0),
#ifdef DEBUG
JS_FS("dumpHeap", DumpHeap, 5,0),
#endif
JS_FS("sendCommand", SendCommand, 1,0),
JS_FS("getChildGlobalObject", GetChildGlobalObject, 0,0),
JS_FS("atob", Atob, 1,0),
JS_FS("btoa", Btoa, 1,0),
JS_FS_END
};
JSClass global_class = {
"global", 0,
JS_PropertyStub, JS_DeletePropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, nullptr
};
static JSBool
env_setProperty(JSContext *cx, JSHandleObject obj, JSHandleId id, JSBool strict, JSMutableHandleValue vp)
{
/* XXX porting may be easy, but these don't seem to supply setenv by default */
#if !defined XP_OS2 && !defined SOLARIS
JSString *idstr, *valstr;
int rv;
jsval idval;
if (!JS_IdToValue(cx, id, &idval))
return false;
idstr = JS_ValueToString(cx, idval);
valstr = JS_ValueToString(cx, vp);
if (!idstr || !valstr)
return false;
JSAutoByteString name(cx, idstr);
if (!name)
return false;
JSAutoByteString value(cx, valstr);
if (!value)
return false;
#if defined XP_WIN || defined HPUX || defined OSF1 || defined SCO
{
char *waste = JS_smprintf("%s=%s", name.ptr(), value.ptr());
if (!waste) {
JS_ReportOutOfMemory(cx);
return false;
}
rv = putenv(waste);
#ifdef XP_WIN
/*
* HPUX9 at least still has the bad old non-copying putenv.
*
* Per mail from <s.shanmuganathan@digital.com>, OSF1 also has a putenv
* that will crash if you pass it an auto char array (so it must place
* its argument directly in the char *environ[] array).
*/
free(waste);
#endif
}
#else
rv = setenv(name.ptr(), value.ptr(), 1);
#endif
if (rv < 0) {
JS_ReportError(cx, "can't set envariable %s to %s", name.ptr(), value.ptr());
return false;
}
vp.set(STRING_TO_JSVAL(valstr));
#endif /* !defined XP_OS2 && !defined SOLARIS */
return true;
}
static JSBool
env_enumerate(JSContext *cx, JSHandleObject obj)
{
static JSBool reflected;
char **evp, *name, *value;
JSString *valstr;
JSBool ok;
if (reflected)
return true;
for (evp = (char **)JS_GetPrivate(obj); (name = *evp) != NULL; evp++) {
value = strchr(name, '=');
if (!value)
continue;
*value++ = '\0';
valstr = JS_NewStringCopyZ(cx, value);
if (!valstr) {
ok = false;
} else {
ok = JS_DefineProperty(cx, obj, name, STRING_TO_JSVAL(valstr),
NULL, NULL, JSPROP_ENUMERATE);
}
value[-1] = '=';
if (!ok)
return false;
}
reflected = true;
return true;
}
static JSBool
env_resolve(JSContext *cx, JSHandleObject obj, JSHandleId id, unsigned flags,
JSMutableHandleObject objp)
{
JSString *idstr, *valstr;
jsval idval;
if (!JS_IdToValue(cx, id, &idval))
return false;
idstr = JS_ValueToString(cx, idval);
if (!idstr)
return false;
JSAutoByteString name(cx, idstr);
if (!name)
return false;
const char *value = getenv(name.ptr());
if (value) {
valstr = JS_NewStringCopyZ(cx, value);
if (!valstr)
return false;
if (!JS_DefinePropertyById(cx, obj, id, STRING_TO_JSVAL(valstr),
NULL, NULL, JSPROP_ENUMERATE)) {
return false;
}
objp.set(obj);
}
return true;
}
static JSClass env_class = {
"environment", JSCLASS_HAS_PRIVATE | JSCLASS_NEW_RESOLVE,
JS_PropertyStub, JS_DeletePropertyStub,
JS_PropertyStub, env_setProperty,
env_enumerate, (JSResolveOp) env_resolve,
JS_ConvertStub, nullptr
};
/***************************************************************************/
typedef enum JSShellErrNum {
#define MSG_DEF(name, number, count, exception, format) \
name = number,
#include "jsshell.msg"
#undef MSG_DEF
JSShellErr_Limit
} JSShellErrNum;
JSErrorFormatString jsShell_ErrorFormatString[JSShellErr_Limit] = {
#define MSG_DEF(name, number, count, exception, format) \
{ format, count } ,
#include "jsshell.msg"
#undef MSG_DEF
};
static const JSErrorFormatString *
my_GetErrorMessage(void *userRef, const char *locale, const unsigned errorNumber)
{
if (errorNumber == 0 || errorNumber >= JSShellErr_Limit)
return NULL;
return &jsShell_ErrorFormatString[errorNumber];
}
static void
ProcessFile(JSContext *cx, JSObject *obj, const char *filename, FILE *file,
JSBool forceTTY)
{
JSScript *script;
jsval result;
int lineno, startline;
JSBool ok, hitEOF;
char *bufp, buffer[4096];
JSString *str;
if (forceTTY) {
file = stdin;
} else
#ifdef HAVE_ISATTY
if (!isatty(fileno(file)))
#endif
{
/*
* 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);
DoBeginRequest(cx);
JS::CompileOptions options(cx);
options.setUTF8(true)
.setFileAndLine(filename, 1)
.setPrincipals(gJSPrincipals);
JS::RootedObject rootedObj(cx, obj);
script = JS::Compile(cx, rootedObj, options, file);
if (script && !compileOnly)
(void)JS_ExecuteScript(cx, obj, script, &result);
DoEndRequest(cx);
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(cx, bufp, file, startline == lineno ? "js> " : "")) {
hitEOF = true;
break;
}
bufp += strlen(bufp);
lineno++;
} while (!JS_BufferIsCompilableUnit(cx, obj, buffer, strlen(buffer)));
DoBeginRequest(cx);
/* Clear any pending exception from previous failed compiles. */
JS_ClearPendingException(cx);
script = JS_CompileScriptForPrincipals(cx, obj, gJSPrincipals, buffer,
strlen(buffer), "typein", startline);
if (script) {
JSErrorReporter older;
if (!compileOnly) {
ok = JS_ExecuteScript(cx, obj, script, &result);
if (ok && result != JSVAL_VOID) {
/* Suppress error reports from JS_ValueToString(). */
older = JS_SetErrorReporter(cx, NULL);
str = JS_ValueToString(cx, result);
JS_SetErrorReporter(cx, older);
JSAutoByteString bytes;
if (str && bytes.encodeLatin1(cx, str))
fprintf(gOutFile, "%s\n", bytes.ptr());
else
ok = false;
}
}
}
DoEndRequest(cx);
} while (!hitEOF && !gQuitting);
fprintf(gOutFile, "\n");
}
static void
Process(JSContext *cx, JSObject *obj, const char *filename, JSBool forceTTY)
{
FILE *file;
if (forceTTY || !filename || strcmp(filename, "-") == 0) {
file = stdin;
} else {
file = fopen(filename, "r");
if (!file) {
JS_ReportErrorNumber(cx, my_GetErrorMessage, NULL,
JSSMSG_CANT_OPEN,
filename, strerror(errno));
gExitCode = EXITCODE_FILE_NOT_FOUND;
return;
}
}
ProcessFile(cx, obj, filename, file, forceTTY);
if (file != stdin)
fclose(file);
}
static int
usage(void)
{
fprintf(gErrFile, "%s\n", JS_GetImplementationVersion());
fprintf(gErrFile, "usage: xpcshell [-g gredir] [-a appdir] [-r manifest]... [-PsSwWCijmIn] [-v version] [-f scriptfile] [-e script] [scriptfile] [scriptarg...]\n");
return 2;
}
extern JSClass global_class;
static void
ProcessArgsForCompartment(JSContext *cx, char **argv, int argc)
{
for (int i = 0; i < argc; i++) {
if (argv[i][0] != '-' || argv[i][1] == '\0')
break;
switch (argv[i][1]) {
case 'v':
case 'f':
case 'e':
if (++i == argc)
return;
break;
case 'S':
JS_ToggleOptions(cx, JSOPTION_WERROR);
case 's':
JS_ToggleOptions(cx, JSOPTION_STRICT);
break;
case 'm':
JS_ToggleOptions(cx, JSOPTION_METHODJIT);
break;
case 'I':
JS_ToggleOptions(cx, JSOPTION_COMPILE_N_GO);
JS_ToggleOptions(cx, JSOPTION_ION);
JS_ToggleOptions(cx, JSOPTION_ASMJS);
break;
case 'n':
JS_ToggleOptions(cx, JSOPTION_TYPE_INFERENCE);
break;
}
}
}
static int
ProcessArgs(JSContext *cx, JSObject *obj, char **argv, int argc, XPCShellDirProvider* aDirProvider)
{
const char rcfilename[] = "xpcshell.js";
FILE *rcfile;
int i;
JSObject *argsObj;
char *filename = NULL;
JSBool isInteractive = true;
JSBool forceTTY = false;
rcfile = fopen(rcfilename, "r");
if (rcfile) {
printf("[loading '%s'...]\n", rcfilename);
ProcessFile(cx, obj, rcfilename, rcfile, false);
fclose(rcfile);
}
/*
* Scan past all optional arguments so we can create the arguments object
* before processing any -f options, which must interleave properly with
* -v and -w options. This requires two passes, and without getopt, we'll
* have to keep the option logic here and in the second for loop in sync.
*/
for (i = 0; i < argc; i++) {
if (argv[i][0] != '-' || argv[i][1] == '\0') {
++i;
break;
}
switch (argv[i][1]) {
case 'v':
case 'f':
case 'e':
++i;
break;
default:;
}
}
/*
* Create arguments early and define it to root it, so it's safe from any
* GC calls nested below, and so it is available to -f <file> arguments.
*/
argsObj = JS_NewArrayObject(cx, 0, NULL);
if (!argsObj)
return 1;
if (!JS_DefineProperty(cx, obj, "arguments", OBJECT_TO_JSVAL(argsObj),
NULL, NULL, 0)) {
return 1;
}
for (size_t j = 0, length = argc - i; j < length; j++) {
JSString *str = JS_NewStringCopyZ(cx, argv[i++]);
if (!str)
return 1;
if (!JS_DefineElement(cx, argsObj, j, STRING_TO_JSVAL(str),
NULL, NULL, JSPROP_ENUMERATE)) {
return 1;
}
}
for (i = 0; i < argc; i++) {
if (argv[i][0] != '-' || argv[i][1] == '\0') {
filename = argv[i++];
isInteractive = false;
break;
}
switch (argv[i][1]) {
case 'v':
if (++i == argc) {
return usage();
}
JS_SetVersion(cx, JSVersion(atoi(argv[i])));
break;
case 'W':
reportWarnings = false;
break;
case 'w':
reportWarnings = true;
break;
case 'x':
break;
case 'd':
xpc_ActivateDebugMode();
break;
case 'f':
if (++i == argc) {
return usage();
}
Process(cx, obj, argv[i], false);
/*
* XXX: js -f foo.js should interpret foo.js and then
* drop into interactive mode, but that breaks test
* harness. Just execute foo.js for now.
*/
isInteractive = false;
break;
case 'i':
isInteractive = forceTTY = true;
break;
case 'e':
{
jsval rval;
if (++i == argc) {
return usage();
}
JS_EvaluateScriptForPrincipals(cx, obj, gJSPrincipals, argv[i],
strlen(argv[i]), "-e", 1, &rval);
isInteractive = false;
break;
}
case 'C':
compileOnly = true;
isInteractive = false;
break;
case 'S':
case 's':
case 'm':
case 'I':
case 'n':
// These options are processed in ProcessArgsForCompartment.
break;
case 'p':
{
// plugins path
char *pluginPath = argv[++i];
nsCOMPtr<nsIFile> pluginsDir;
if (NS_FAILED(XRE_GetFileFromPath(pluginPath, getter_AddRefs(pluginsDir)))) {
fprintf(gErrFile, "Couldn't use given plugins dir.\n");
return usage();
}
aDirProvider->SetPluginDir(pluginsDir);
break;
}
default:
return usage();
}
}
if (filename || isInteractive)
Process(cx, obj, filename, forceTTY);
return gExitCode;
}
/***************************************************************************/
class FullTrustSecMan
: public nsIScriptSecurityManager
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCSECURITYMANAGER
NS_DECL_NSISCRIPTSECURITYMANAGER
FullTrustSecMan();
virtual ~FullTrustSecMan();
void SetSystemPrincipal(nsIPrincipal *aPrincipal) {
mSystemPrincipal = aPrincipal;
}
private:
nsCOMPtr<nsIPrincipal> mSystemPrincipal;
};
NS_INTERFACE_MAP_BEGIN(FullTrustSecMan)
NS_INTERFACE_MAP_ENTRY(nsIXPCSecurityManager)
NS_INTERFACE_MAP_ENTRY(nsIScriptSecurityManager)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCSecurityManager)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(FullTrustSecMan)
NS_IMPL_RELEASE(FullTrustSecMan)
FullTrustSecMan::FullTrustSecMan()
{
mSystemPrincipal = nullptr;
}
FullTrustSecMan::~FullTrustSecMan()
{
}
NS_IMETHODIMP
FullTrustSecMan::CanCreateWrapper(JSContext * aJSContext, const nsIID & aIID,
nsISupports *aObj, nsIClassInfo *aClassInfo,
void * *aPolicy)
{
return NS_OK;
}
NS_IMETHODIMP
FullTrustSecMan::CanCreateInstance(JSContext * aJSContext, const nsCID & aCID)
{
return NS_OK;
}
NS_IMETHODIMP
FullTrustSecMan::CanGetService(JSContext * aJSContext, const nsCID & aCID)
{
return NS_OK;
}
/* void CanAccess (in uint32_t aAction, in nsIXPCNativeCallContext aCallContext, in JSContextPtr aJSContext, in JSObjectPtr aJSObject, in nsISupports aObj, in nsIClassInfo aClassInfo, in jsval aName, inout voidPtr aPolicy); */
NS_IMETHODIMP
FullTrustSecMan::CanAccess(uint32_t aAction,
nsAXPCNativeCallContext *aCallContext,
JSContext * aJSContext, JSObject * aJSObject,
nsISupports *aObj, nsIClassInfo *aClassInfo,
jsid aName, void * *aPolicy)
{
return NS_OK;
}
/* [noscript] void checkPropertyAccess (in JSContextPtr aJSContext, in JSObjectPtr aJSObject, in string aClassName, in jsid aProperty, in uint32_t aAction); */
NS_IMETHODIMP
FullTrustSecMan::CheckPropertyAccess(JSContext * aJSContext,
JSObject * aJSObject,
const char *aClassName,
jsid aProperty, uint32_t aAction)
{
return NS_OK;
}
/* [noscript] void checkLoadURIFromScript (in JSContextPtr cx, in nsIURI uri); */
NS_IMETHODIMP
FullTrustSecMan::CheckLoadURIFromScript(JSContext * cx, nsIURI *uri)
{
return NS_OK;
}
/* void checkLoadURIWithPrincipal (in nsIPrincipal aPrincipal, in nsIURI uri, in unsigned long flags); */
NS_IMETHODIMP
FullTrustSecMan::CheckLoadURIWithPrincipal(nsIPrincipal *aPrincipal,
nsIURI *uri, uint32_t flags)
{
return NS_OK;
}
/* void checkLoadURIStrWithPrincipal (in nsIPrincipal aPrincipal, in AUTF8String uri, in unsigned long flags); */
NS_IMETHODIMP
FullTrustSecMan::CheckLoadURIStrWithPrincipal(nsIPrincipal *aPrincipal,
const nsACString & uri,
uint32_t flags)
{
return NS_OK;
}
/* [noscript] void checkFunctionAccess (in JSContextPtr cx, in voidPtr funObj, in voidPtr targetObj); */
NS_IMETHODIMP
FullTrustSecMan::CheckFunctionAccess(JSContext * cx, void * funObj,
void * targetObj)
{
return NS_OK;
}
/* [noscript] boolean canExecuteScripts (in JSContextPtr cx, in nsIPrincipal principal); */
NS_IMETHODIMP
FullTrustSecMan::CanExecuteScripts(JSContext * cx, nsIPrincipal *principal,
bool *_retval)
{
*_retval = true;
return NS_OK;
}
/* [noscript] nsIPrincipal getSubjectPrincipal (); */
NS_IMETHODIMP
FullTrustSecMan::GetSubjectPrincipal(nsIPrincipal **_retval)
{
NS_IF_ADDREF(*_retval = mSystemPrincipal);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
/* [noscript] nsIPrincipal getSystemPrincipal (); */
NS_IMETHODIMP
FullTrustSecMan::GetSystemPrincipal(nsIPrincipal **_retval)
{
NS_IF_ADDREF(*_retval = mSystemPrincipal);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
/* [noscript] nsIPrincipal getSimpleCodebasePrincipal (in nsIURI aURI); */
NS_IMETHODIMP
FullTrustSecMan::GetSimpleCodebasePrincipal(nsIURI *aURI, nsIPrincipal **_retval)
{
NS_IF_ADDREF(*_retval = mSystemPrincipal);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
/* [noscript] nsIPrincipal getNoAppCodebasePrincipal (in nsIURI aURI); */
NS_IMETHODIMP
FullTrustSecMan::GetNoAppCodebasePrincipal(nsIURI *aURI, nsIPrincipal **_retval)
{
return GetSimpleCodebasePrincipal(aURI, _retval);
}
/* [noscript] nsIPrincipal getCodebasePrincipal (in nsIURI aURI); */
NS_IMETHODIMP
FullTrustSecMan::GetCodebasePrincipal(nsIURI *aURI, nsIPrincipal **_retval)
{
return GetSimpleCodebasePrincipal(aURI, _retval);
}
/* [noscript] nsIPrincipal getAppCodebasePrincipal (in nsIURI aURI, unsigned long appid, bool inMozBrowser); */
NS_IMETHODIMP
FullTrustSecMan::GetAppCodebasePrincipal(nsIURI *aURI, uint32_t aAppId, bool aInMozBrowser, nsIPrincipal **_retval)
{
return GetSimpleCodebasePrincipal(aURI, _retval);
}
/* [noscript] nsIPrincipal getDocShellCodebasePrincipal (in nsIURI aURI, nsIDocShell docShell); */
NS_IMETHODIMP
FullTrustSecMan::GetDocShellCodebasePrincipal(nsIURI *aURI, nsIDocShell* aDocShell, nsIPrincipal **_retval)
{
return GetSimpleCodebasePrincipal(aURI, _retval);
}
/* [noscript] nsIPrincipal getObjectPrincipal (in JSContextPtr cx, in JSObjectPtr obj); */
NS_IMETHODIMP
FullTrustSecMan::GetObjectPrincipal(JSContext * cx, JSObject * obj,
nsIPrincipal **_retval)
{
NS_IF_ADDREF(*_retval = mSystemPrincipal);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
/* [noscript] boolean subjectPrincipalIsSystem (); */
NS_IMETHODIMP
FullTrustSecMan::SubjectPrincipalIsSystem(bool *_retval)
{
*_retval = true;
return NS_OK;
}
/* [noscript] void checkSameOrigin (in JSContextPtr aJSContext, in nsIURI aTargetURI); */
NS_IMETHODIMP
FullTrustSecMan::CheckSameOrigin(JSContext * aJSContext, nsIURI *aTargetURI)
{
return NS_OK;
}
/* void checkSameOriginURI (in nsIURI aSourceURI, in nsIURI aTargetURI); */
NS_IMETHODIMP
FullTrustSecMan::CheckSameOriginURI(nsIURI *aSourceURI, nsIURI *aTargetURI,
bool reportError)
{
return NS_OK;
}
/* [noscript] nsIPrincipal getChannelPrincipal (in nsIChannel aChannel); */
NS_IMETHODIMP
FullTrustSecMan::GetChannelPrincipal(nsIChannel *aChannel, nsIPrincipal **_retval)
{
NS_IF_ADDREF(*_retval = mSystemPrincipal);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
/* boolean isSystemPrincipal (in nsIPrincipal aPrincipal); */
NS_IMETHODIMP
FullTrustSecMan::IsSystemPrincipal(nsIPrincipal *aPrincipal, bool *_retval)
{
*_retval = aPrincipal == mSystemPrincipal;
return NS_OK;
}
NS_IMETHODIMP_(nsIPrincipal *)
FullTrustSecMan::GetCxSubjectPrincipal(JSContext *cx)
{
return mSystemPrincipal;
}
NS_IMETHODIMP
FullTrustSecMan::GetExtendedOrigin(nsIURI* aURI, uint32_t aAppId,
bool aInMozBrowser,
nsACString& aExtendedOrigin)
{
aExtendedOrigin.Truncate();
return NS_OK;
}
/***************************************************************************/
// #define TEST_InitClassesWithNewWrappedGlobal
#ifdef TEST_InitClassesWithNewWrappedGlobal
// XXX hacky test code...
#include "xpctest.h"
class TestGlobal : public nsIXPCTestNoisy, public nsIXPCScriptable
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCTESTNOISY
NS_DECL_NSIXPCSCRIPTABLE
TestGlobal(){}
};
NS_IMPL_ISUPPORTS2(TestGlobal, nsIXPCTestNoisy, nsIXPCScriptable)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME TestGlobal
#define XPC_MAP_QUOTED_CLASSNAME "TestGlobal"
#define XPC_MAP_FLAGS nsIXPCScriptable::USE_JSSTUB_FOR_ADDPROPERTY |\
nsIXPCScriptable::USE_JSSTUB_FOR_DELPROPERTY |\
nsIXPCScriptable::USE_JSSTUB_FOR_SETPROPERTY
#include "xpc_map_end.h" /* This will #undef the above */
NS_IMETHODIMP TestGlobal::Squawk() {return NS_OK;}
#endif
// uncomment to install the test 'this' translator
// #define TEST_TranslateThis
#ifdef TEST_TranslateThis
#include "xpctest.h"
class nsXPCFunctionThisTranslator : public nsIXPCFunctionThisTranslator
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCFUNCTIONTHISTRANSLATOR
nsXPCFunctionThisTranslator();
virtual ~nsXPCFunctionThisTranslator();
/* additional members */
};
/* Implementation file */
NS_IMPL_ISUPPORTS1(nsXPCFunctionThisTranslator, nsIXPCFunctionThisTranslator)
nsXPCFunctionThisTranslator::nsXPCFunctionThisTranslator()
{
/* member initializers and constructor code */
}
nsXPCFunctionThisTranslator::~nsXPCFunctionThisTranslator()
{
/* destructor code */
#ifdef DEBUG_jband
printf("destroying nsXPCFunctionThisTranslator\n");
#endif
}
/* nsISupports TranslateThis (in nsISupports aInitialThis); */
NS_IMETHODIMP
nsXPCFunctionThisTranslator::TranslateThis(nsISupports *aInitialThis,
nsISupports **_retval)
{
NS_IF_ADDREF(aInitialThis);
*_retval = aInitialThis;
return NS_OK;
}
#endif
// ContextCallback calls are chained
static JSContextCallback gOldJSContextCallback;
static JSBool
ContextCallback(JSContext *cx, unsigned contextOp)
{
if (gOldJSContextCallback && !gOldJSContextCallback(cx, contextOp))
return false;
if (contextOp == JSCONTEXT_NEW) {
JS_SetErrorReporter(cx, my_ErrorReporter);
JS_SetVersion(cx, JSVERSION_LATEST);
}
return true;
}
static bool
GetCurrentWorkingDirectory(nsAString& workingDirectory)
{
#if !defined(XP_WIN) && !defined(XP_UNIX)
//XXX: your platform should really implement this
return false;
#elif XP_WIN
DWORD requiredLength = GetCurrentDirectoryW(0, NULL);
workingDirectory.SetLength(requiredLength);
GetCurrentDirectoryW(workingDirectory.Length(),
(LPWSTR)workingDirectory.BeginWriting());
// we got a trailing null there
workingDirectory.SetLength(requiredLength);
workingDirectory.Replace(workingDirectory.Length() - 1, 1, L'\\');
#elif defined(XP_UNIX)
nsAutoCString cwd;
// 1024 is just a guess at a sane starting value
size_t bufsize = 1024;
char* result = nullptr;
while (result == nullptr) {
if (!cwd.SetLength(bufsize))
return false;
result = getcwd(cwd.BeginWriting(), cwd.Length());
if (!result) {
if (errno != ERANGE)
return false;
// need to make the buffer bigger
bufsize *= 2;
}
}
// size back down to the actual string length
cwd.SetLength(strlen(result) + 1);
cwd.Replace(cwd.Length() - 1, 1, '/');
workingDirectory = NS_ConvertUTF8toUTF16(cwd);
#endif
return true;
}
static JSSecurityCallbacks shellSecurityCallbacks;
int
main(int argc, char **argv, char **envp)
{
#ifdef XP_MACOSX
InitAutoreleasePool();
#endif
JSRuntime *rt;
JSContext *cx;
JSObject *glob, *envobj;
int result;
nsresult rv;
#ifdef HAVE_SETBUF
// unbuffer stdout so that output is in the correct order; note that stderr
// is unbuffered by default
setbuf(stdout, 0);
#endif
#ifdef XRE_HAS_DLL_BLOCKLIST
XRE_SetupDllBlocklist();
#endif
gErrFile = stderr;
gOutFile = stdout;
gInFile = stdin;
NS_LogInit();
nsCOMPtr<nsIFile> appFile;
rv = XRE_GetBinaryPath(argv[0], getter_AddRefs(appFile));
if (NS_FAILED(rv)) {
printf("Couldn't find application file.\n");
return 1;
}
nsCOMPtr<nsIFile> appDir;
rv = appFile->GetParent(getter_AddRefs(appDir));
if (NS_FAILED(rv)) {
printf("Couldn't get application directory.\n");
return 1;
}
XPCShellDirProvider dirprovider;
dirprovider.SetAppFile(appFile);
if (argc > 1 && !strcmp(argv[1], "-g")) {
if (argc < 3)
return usage();
if (!dirprovider.SetGREDir(argv[2])) {
printf("SetGREDir failed.\n");
return 1;
}
argc -= 2;
argv += 2;
}
if (argc > 1 && !strcmp(argv[1], "-a")) {
if (argc < 3)
return usage();
nsCOMPtr<nsIFile> dir;
rv = XRE_GetFileFromPath(argv[2], getter_AddRefs(dir));
if (NS_SUCCEEDED(rv)) {
appDir = do_QueryInterface(dir, &rv);
dirprovider.SetAppDir(appDir);
}
if (NS_FAILED(rv)) {
printf("Couldn't use given appdir.\n");
return 1;
}
argc -= 2;
argv += 2;
}
while (argc > 1 && !strcmp(argv[1], "-r")) {
if (argc < 3)
return usage();
nsCOMPtr<nsIFile> lf;
rv = XRE_GetFileFromPath(argv[2], getter_AddRefs(lf));
if (NS_FAILED(rv)) {
printf("Couldn't get manifest file.\n");
return 1;
}
XRE_AddManifestLocation(NS_COMPONENT_LOCATION, lf);
argc -= 2;
argv += 2;
}
{
if (argc > 1 && !strcmp(argv[1], "--greomni")) {
nsCOMPtr<nsIFile> greOmni;
nsCOMPtr<nsIFile> appOmni;
XRE_GetFileFromPath(argv[2], getter_AddRefs(greOmni));
if (argc > 3 && !strcmp(argv[3], "--appomni")) {
XRE_GetFileFromPath(argv[4], getter_AddRefs(appOmni));
argc-=2;
argv+=2;
} else {
appOmni = greOmni;
}
XRE_InitOmnijar(greOmni, appOmni);
argc-=2;
argv+=2;
}
nsCOMPtr<nsIServiceManager> servMan;
rv = NS_InitXPCOM2(getter_AddRefs(servMan), appDir, &dirprovider);
if (NS_FAILED(rv)) {
printf("NS_InitXPCOM2 failed!\n");
return 1;
}
nsCOMPtr<nsIJSRuntimeService> rtsvc = do_GetService("@mozilla.org/js/xpc/RuntimeService;1");
// get the JSRuntime from the runtime svc
if (!rtsvc) {
printf("failed to get nsJSRuntimeService!\n");
return 1;
}
if (NS_FAILED(rtsvc->GetRuntime(&rt)) || !rt) {
printf("failed to get JSRuntime from nsJSRuntimeService!\n");
return 1;
}
gOldJSContextCallback = JS_SetContextCallback(rt, ContextCallback);
cx = JS_NewContext(rt, 8192);
if (!cx) {
printf("JS_NewContext failed!\n");
return 1;
}
argc--;
argv++;
ProcessArgsForCompartment(cx, argv, argc);
nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID());
if (!xpc) {
printf("failed to get nsXPConnect service!\n");
return 1;
}
// Since the caps security system might set a default security manager
// we will be sure that the secman on this context gives full trust.
nsRefPtr<FullTrustSecMan> secman = new FullTrustSecMan();
xpc->SetSecurityManagerForJSContext(cx, secman, 0xFFFF);
nsCOMPtr<nsIPrincipal> systemprincipal;
// Fetch the system principal and store it away in a global, to use for
// script compilation in Load() and ProcessFile() (including interactive
// eval loop)
{
nsCOMPtr<nsIScriptSecurityManager> securityManager =
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv) && securityManager) {
rv = securityManager->GetSystemPrincipal(getter_AddRefs(systemprincipal));
if (NS_FAILED(rv)) {
fprintf(gErrFile, "+++ Failed to obtain SystemPrincipal from ScriptSecurityManager service.\n");
} else {
// fetch the JS principals and stick in a global
gJSPrincipals = nsJSPrincipals::get(systemprincipal);
JS_HoldPrincipals(gJSPrincipals);
secman->SetSystemPrincipal(systemprincipal);
}
} else {
fprintf(gErrFile, "+++ Failed to get ScriptSecurityManager service, running without principals");
}
}
const JSSecurityCallbacks *scb = JS_GetSecurityCallbacks(rt);
NS_ASSERTION(scb, "We are assuming that nsScriptSecurityManager::Init() has been run");
shellSecurityCallbacks = *scb;
JS_SetSecurityCallbacks(rt, &shellSecurityCallbacks);
#ifdef TEST_TranslateThis
nsCOMPtr<nsIXPCFunctionThisTranslator>
translator(new nsXPCFunctionThisTranslator);
xpc->SetFunctionThisTranslator(NS_GET_IID(nsITestXPCFunctionCallback), translator);
#endif
nsCOMPtr<nsIJSContextStack> cxstack = do_GetService("@mozilla.org/js/xpc/ContextStack;1");
if (!cxstack) {
printf("failed to get the nsThreadJSContextStack service!\n");
return 1;
}
if (NS_FAILED(cxstack->Push(cx))) {
printf("failed to push the current JSContext on the nsThreadJSContextStack!\n");
return 1;
}
nsRefPtr<BackstagePass> backstagePass;
rv = NS_NewBackstagePass(getter_AddRefs(backstagePass));
if (NS_FAILED(rv)) {
fprintf(gErrFile, "+++ Failed to create BackstagePass: %8x\n",
static_cast<uint32_t>(rv));
return 1;
}
nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
rv = xpc->InitClassesWithNewWrappedGlobal(cx,
static_cast<nsIGlobalObject *>(backstagePass),
systemprincipal,
0,
JS::SystemZone,
getter_AddRefs(holder));
if (NS_FAILED(rv))
return 1;
rv = holder->GetJSObject(&glob);
if (NS_FAILED(rv)) {
NS_ASSERTION(glob == nullptr, "bad GetJSObject?");
return 1;
}
backstagePass->SetGlobalObject(glob);
JS_BeginRequest(cx);
{
JSAutoCompartment ac(cx, glob);
if (!JS_InitReflect(cx, glob)) {
JS_EndRequest(cx);
return 1;
}
if (!JS_DefineFunctions(cx, glob, glob_functions) ||
!JS_DefineProfilingFunctions(cx, glob)) {
JS_EndRequest(cx);
return 1;
}
envobj = JS_DefineObject(cx, glob, "environment", &env_class, NULL, 0);
if (!envobj) {
JS_EndRequest(cx);
return 1;
}
JS_SetPrivate(envobj, envp);
nsAutoString workingDirectory;
if (GetCurrentWorkingDirectory(workingDirectory))
gWorkingDirectory = &workingDirectory;
JS_DefineProperty(cx, glob, "__LOCATION__", JSVAL_VOID,
GetLocationProperty, NULL, 0);
result = ProcessArgs(cx, glob, argv, argc, &dirprovider);
//#define TEST_CALL_ON_WRAPPED_JS_AFTER_SHUTDOWN 1
#ifdef TEST_CALL_ON_WRAPPED_JS_AFTER_SHUTDOWN
// test of late call and release (see below)
nsCOMPtr<nsIJSContextStack> bogus;
xpc->WrapJS(cx, glob, NS_GET_IID(nsIJSContextStack),
(void**) getter_AddRefs(bogus));
#endif
JS_DropPrincipals(rt, gJSPrincipals);
JS_SetAllNonReservedSlotsToUndefined(cx, glob);
JS_GC(rt);
JSContext *oldcx;
cxstack->Pop(&oldcx);
NS_ASSERTION(oldcx == cx, "JS thread context push/pop mismatch");
cxstack = nullptr;
JS_GC(rt);
} //this scopes the JSAutoCrossCompartmentCall
JS_EndRequest(cx);
JS_DestroyContext(cx);
} // this scopes the nsCOMPtrs
if (!XRE_ShutdownTestShell())
NS_ERROR("problem shutting down testshell");
#ifdef MOZ_CRASHREPORTER
// Get the crashreporter service while XPCOM is still active.
// This is a special exception: it will remain usable after NS_ShutdownXPCOM().
nsCOMPtr<nsICrashReporter> crashReporter =
do_GetService("@mozilla.org/toolkit/crash-reporter;1");
#endif
// no nsCOMPtrs are allowed to be alive when you call NS_ShutdownXPCOM
rv = NS_ShutdownXPCOM( NULL );
NS_ASSERTION(NS_SUCCEEDED(rv), "NS_ShutdownXPCOM failed");
#ifdef TEST_CALL_ON_WRAPPED_JS_AFTER_SHUTDOWN
// test of late call and release (see above)
JSContext* bogusCX;
bogus->Peek(&bogusCX);
bogus = nullptr;
#endif
appDir = nullptr;
appFile = nullptr;
dirprovider.ClearGREDir();
dirprovider.ClearAppDir();
dirprovider.ClearPluginDir();
dirprovider.ClearAppFile();
#ifdef MOZ_CRASHREPORTER
// Shut down the crashreporter service to prevent leaking some strings it holds.
if (crashReporter) {
crashReporter->SetEnabled(false);
crashReporter = nullptr;
}
#endif
NS_LogTerm();
#ifdef XP_MACOSX
FinishAutoreleasePool();
#endif
return result;
}
bool
XPCShellDirProvider::SetGREDir(const char *dir)
{
nsresult rv = XRE_GetFileFromPath(dir, getter_AddRefs(mGREDir));
return NS_SUCCEEDED(rv);
}
void
XPCShellDirProvider::SetAppFile(nsIFile* appFile)
{
mAppFile = appFile;
}
void
XPCShellDirProvider::SetAppDir(nsIFile* appDir)
{
mAppDir = appDir;
}
void
XPCShellDirProvider::SetPluginDir(nsIFile* pluginDir)
{
mPluginDir = pluginDir;
}
NS_IMETHODIMP_(nsrefcnt)
XPCShellDirProvider::AddRef()
{
return 2;
}
NS_IMETHODIMP_(nsrefcnt)
XPCShellDirProvider::Release()
{
return 1;
}
NS_IMPL_QUERY_INTERFACE2(XPCShellDirProvider,
nsIDirectoryServiceProvider,
nsIDirectoryServiceProvider2)
NS_IMETHODIMP
XPCShellDirProvider::GetFile(const char *prop, bool *persistent,
nsIFile* *result)
{
if (mGREDir && !strcmp(prop, NS_GRE_DIR)) {
*persistent = true;
return mGREDir->Clone(result);
} else if (mAppFile && !strcmp(prop, XRE_EXECUTABLE_FILE)) {
*persistent = true;
return mAppFile->Clone(result);
} else if (mGREDir && !strcmp(prop, NS_APP_PREF_DEFAULTS_50_DIR)) {
nsCOMPtr<nsIFile> file;
*persistent = true;
if (NS_FAILED(mGREDir->Clone(getter_AddRefs(file))) ||
NS_FAILED(file->AppendNative(NS_LITERAL_CSTRING("defaults"))) ||
NS_FAILED(file->AppendNative(NS_LITERAL_CSTRING("pref"))))
return NS_ERROR_FAILURE;
NS_ADDREF(*result = file);
return NS_OK;
} else if (mAppFile && !strcmp(prop, XRE_UPDATE_ROOT_DIR)) {
// For xpcshell, we pretend that the update root directory is always
// the same as the GRE directory, except for Windows, where we immitate
// the algorithm defined in nsXREDirProvider::GetUpdateRootDir.
*persistent = true;
#ifdef XP_WIN
char appData[MAX_PATH] = {'\0'};
char path[MAX_PATH] = {'\0'};
LPITEMIDLIST pItemIDList;
if (FAILED(SHGetSpecialFolderLocation(NULL, CSIDL_LOCAL_APPDATA, &pItemIDList)) ||
FAILED(SHGetPathFromIDListA(pItemIDList, appData))) {
return NS_ERROR_FAILURE;
}
nsAutoString pathName;
pathName.AssignASCII(appData);
nsCOMPtr<nsIFile> localFile;
nsresult rv = NS_NewLocalFile(pathName, true, getter_AddRefs(localFile));
if (NS_FAILED(rv)) {
return rv;
}
#ifdef MOZ_APP_PROFILE
localFile->AppendNative(NS_LITERAL_CSTRING(MOZ_APP_PROFILE));
#else
// MOZ_APP_VENDOR and MOZ_APP_BASENAME are optional.
#ifdef MOZ_APP_VENDOR
localFile->AppendNative(NS_LITERAL_CSTRING(MOZ_APP_VENDOR));
#endif
#ifdef MOZ_APP_BASENAME
localFile->AppendNative(NS_LITERAL_CSTRING(MOZ_APP_BASENAME));
#endif
// However app name is always appended.
localFile->AppendNative(NS_LITERAL_CSTRING(MOZ_APP_NAME));
#endif
return localFile->Clone(result);
#else
return mAppFile->GetParent(result);
#endif
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
XPCShellDirProvider::GetFiles(const char *prop, nsISimpleEnumerator* *result)
{
if (mGREDir && !strcmp(prop, "ChromeML")) {
nsCOMArray<nsIFile> dirs;
nsCOMPtr<nsIFile> file;
mGREDir->Clone(getter_AddRefs(file));
file->AppendNative(NS_LITERAL_CSTRING("chrome"));
dirs.AppendObject(file);
nsresult rv = NS_GetSpecialDirectory(NS_APP_CHROME_DIR,
getter_AddRefs(file));
if (NS_SUCCEEDED(rv))
dirs.AppendObject(file);
return NS_NewArrayEnumerator(result, dirs);
} else if (!strcmp(prop, NS_APP_PREFS_DEFAULTS_DIR_LIST)) {
nsCOMArray<nsIFile> dirs;
nsCOMPtr<nsIFile> appDir;
bool exists;
if (mAppDir &&
NS_SUCCEEDED(mAppDir->Clone(getter_AddRefs(appDir))) &&
NS_SUCCEEDED(appDir->AppendNative(NS_LITERAL_CSTRING("defaults"))) &&
NS_SUCCEEDED(appDir->AppendNative(NS_LITERAL_CSTRING("preferences"))) &&
NS_SUCCEEDED(appDir->Exists(&exists)) && exists) {
dirs.AppendObject(appDir);
return NS_NewArrayEnumerator(result, dirs);
}
return NS_ERROR_FAILURE;
} else if (!strcmp(prop, NS_APP_PLUGINS_DIR_LIST)) {
nsCOMPtr<nsIFile> file;
nsCOMArray<nsIFile> dirs;
bool exists;
// We have to add this path, buildbot copies the test plugin directory
// to (app)/bin when unpacking test zips.
if (mGREDir) {
mGREDir->Clone(getter_AddRefs(file));
if (NS_SUCCEEDED(mGREDir->Clone(getter_AddRefs(file)))) {
file->AppendNative(NS_LITERAL_CSTRING("plugins"));
if (NS_SUCCEEDED(file->Exists(&exists)) && exists) {
dirs.AppendObject(file);
}
}
}
// Add the test plugin location passed in by the caller or through
// runxpcshelltests.
if (mPluginDir) {
dirs.AppendObject(mPluginDir);
}
return NS_NewArrayEnumerator(result, dirs);
}
return NS_ERROR_FAILURE;
}
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