// static
void
XPCThrower::ThrowBadResult(nsresult rv, nsresult result, XPCCallContext& ccx)
{
char* sz;
const char* format;
const char* name;
/*
* If there is a pending exception when the native call returns and
* it has the same error result as returned by the native call, then
* the native call may be passing through an error from a previous JS
* call. So we'll just throw that exception into our JS.
*/
if(CheckForPendingException(result, ccx))
return;
// else...
if(!nsXPCException::NameAndFormatForNSResult(rv, nsnull, &format) || !format)
format = "";
if(nsXPCException::NameAndFormatForNSResult(result, &name, nsnull) && name)
sz = JS_smprintf("%s 0x%x (%s)", format, result, name);
else
sz = JS_smprintf("%s 0x%x", format, result);
if(sz && sVerbose)
Verbosify(ccx, &sz, PR_TRUE);
BuildAndThrowException(ccx, result, sz);
if(sz)
JS_smprintf_free(sz);
}
/*
* Convert a JavaSignature object into a string format as used by
* the JNI functions, e.g. java.lang.Object ==> "Ljava/lang/Object;"
* The caller is responsible for freeing the resulting string.
*
* If an error is encountered, NULL is returned and an error reported.
*/
const char *
jsj_ConvertJavaSignatureToString(JSContext *cx, JavaSignature *signature)
{
char *sig;
if (IS_OBJECT_TYPE(signature->type)) {
/* A non-array object class */
sig = JS_smprintf("L%s;", signature->name);
if (sig)
jsj_MakeJNIClassname(sig);
} else if (signature->type == JAVA_SIGNATURE_ARRAY) {
/* An array class */
const char *component_signature_string;
component_signature_string =
jsj_ConvertJavaSignatureToString(cx, signature->array_component_signature);
if (!component_signature_string)
return NULL;
sig = JS_smprintf("[%s", component_signature_string);
JS_smprintf_free((char*)component_signature_string);
} else {
/* A primitive class */
sig = JS_smprintf("%c", get_jdk_signature_char(signature->type));
}
if (!sig) {
JS_ReportOutOfMemory(cx);
return NULL;
}
return sig;
}
static JSBool
default_create_java_vm(SystemJavaVM* *jvm, JNIEnv* *initialEnv, void* initargs)
{
jint err;
const char* user_classpath = (const char*)initargs;
char* full_classpath = NULL;
/* No Java VM supplied, so create our own */
JDK1_1InitArgs vm_args;
memset(&vm_args, 0, sizeof(vm_args));
/* Magic constant indicates JRE version 1.1 */
vm_args.version = 0x00010001;
JNI_GetDefaultJavaVMInitArgs(&vm_args);
/* Prepend the classpath argument to the default JVM classpath */
if (user_classpath) {
#if defined(XP_UNIX) || defined(XP_BEOS)
full_classpath = JS_smprintf("%s:%s", user_classpath, vm_args.classpath);
#else
full_classpath = JS_smprintf("%s;%s", user_classpath, vm_args.classpath);
#endif
if (!full_classpath) {
return JS_FALSE;
}
vm_args.classpath = (char*)full_classpath;
}
err = JNI_CreateJavaVM((JavaVM**)jvm, initialEnv, &vm_args);
if (full_classpath)
JS_smprintf_free(full_classpath);
return err == 0;
}
NS_IMETHODIMP
nsScriptError::ToString(nsACString& /*UTF8*/ aResult)
{
static const char format0[] =
"[%s: \"%s\" {file: \"%s\" line: %d column: %d source: \"%s\"}]";
static const char format1[] =
"[%s: \"%s\" {file: \"%s\" line: %d}]";
static const char format2[] =
"[%s: \"%s\"]";
static const char error[] = "JavaScript Error";
static const char warning[] = "JavaScript Warning";
const char* severity = !(mFlags & JSREPORT_WARNING) ? error : warning;
char* temp;
char* tempMessage = nullptr;
char* tempSourceName = nullptr;
char* tempSourceLine = nullptr;
if (!mMessage.IsEmpty())
tempMessage = ToNewUTF8String(mMessage);
if (!mSourceName.IsEmpty())
tempSourceName = ToNewUTF8String(mSourceName);
if (!mSourceLine.IsEmpty())
tempSourceLine = ToNewUTF8String(mSourceLine);
if (nullptr != tempSourceName && nullptr != tempSourceLine)
temp = JS_smprintf(format0,
severity,
tempMessage,
tempSourceName,
mLineNumber,
mColumnNumber,
tempSourceLine);
else if (!mSourceName.IsEmpty())
temp = JS_smprintf(format1,
severity,
tempMessage,
tempSourceName,
mLineNumber);
else
temp = JS_smprintf(format2,
severity,
tempMessage);
if (nullptr != tempMessage)
nsMemory::Free(tempMessage);
if (nullptr != tempSourceName)
nsMemory::Free(tempSourceName);
if (nullptr != tempSourceLine)
nsMemory::Free(tempSourceLine);
if (!temp)
return NS_ERROR_OUT_OF_MEMORY;
aResult.Assign(temp);
JS_smprintf_free(temp);
return NS_OK;
}
/*
* Convert a JavaSignature object into a human-readable string format as seen
* in Java source files, e.g. "byte", or "int[][]" or "java.lang.String".
* The caller is responsible for freeing the resulting string.
*
* If an error is encountered, NULL is returned and an error reported.
*/
const char *
jsj_ConvertJavaSignatureToHRString(JSContext *cx,
JavaSignature *signature)
{
char *sig;
JavaSignature *acs;
if (signature->type == JAVA_SIGNATURE_ARRAY) {
/* An array class */
const char *component_signature_string;
acs = signature->array_component_signature;
component_signature_string =
jsj_ConvertJavaSignatureToHRString(cx, acs);
if (!component_signature_string)
return NULL;
sig = JS_smprintf("%s[]", component_signature_string);
JS_smprintf_free((char*)component_signature_string);
} else {
/* A primitive class or a non-array object class */
sig = JS_smprintf("%s", signature->name);
}
if (!sig) {
JS_ReportOutOfMemory(cx);
return NULL;
}
return sig;
}
static nsresult
ToStringHelper(const char* aSeverity, const nsString& aMessage,
const nsString& aSourceName, const nsString* aSourceLine,
uint32_t aLineNumber, uint32_t aColumnNumber,
nsACString& /*UTF8*/ aResult)
{
static const char format0[] =
"[%s: \"%s\" {file: \"%s\" line: %d column: %d source: \"%s\"}]";
static const char format1[] =
"[%s: \"%s\" {file: \"%s\" line: %d}]";
static const char format2[] =
"[%s: \"%s\"]";
UniqueChars temp;
char* tempMessage = nullptr;
char* tempSourceName = nullptr;
char* tempSourceLine = nullptr;
if (!aMessage.IsEmpty())
tempMessage = ToNewUTF8String(aMessage);
if (!aSourceName.IsEmpty())
// Use at most 512 characters from mSourceName.
tempSourceName = ToNewUTF8String(StringHead(aSourceName, 512));
if (aSourceLine && !aSourceLine->IsEmpty())
// Use at most 512 characters from mSourceLine.
tempSourceLine = ToNewUTF8String(StringHead(*aSourceLine, 512));
if (nullptr != tempSourceName && nullptr != tempSourceLine) {
temp = JS_smprintf(format0,
aSeverity,
tempMessage,
tempSourceName,
aLineNumber,
aColumnNumber,
tempSourceLine);
} else if (!aSourceName.IsEmpty()) {
temp = JS_smprintf(format1,
aSeverity,
tempMessage,
tempSourceName,
aLineNumber);
} else {
temp = JS_smprintf(format2,
aSeverity,
tempMessage);
}
if (nullptr != tempMessage)
free(tempMessage);
if (nullptr != tempSourceName)
free(tempSourceName);
if (nullptr != tempSourceLine)
free(tempSourceLine);
if (!temp)
return NS_ERROR_OUT_OF_MEMORY;
aResult.Assign(temp.get());
return NS_OK;
}
// static
void
XPCThrower::Verbosify(XPCCallContext& ccx,
char** psz, PRBool own)
{
char* sz = nsnull;
if(ccx.HasInterfaceAndMember())
{
XPCNativeInterface* iface = ccx.GetInterface();
jsid id = ccx.GetMember()->GetName();
JSAutoByteString bytes;
const char *name = JSID_IS_VOID(id) ? "Unknown" : bytes.encode(ccx, JSID_TO_STRING(id));
if(!name)
{
name = "";
}
sz = JS_smprintf("%s [%s.%s]", *psz, iface->GetNameString(), name);
}
if(sz)
{
if(own)
JS_smprintf_free(*psz);
*psz = sz;
}
}
/*
* Unfortunately, there's no standard means to associate any private data with
* a JNI thread environment, so we need to use the Java environment pointer as
* the key in a lookup table that maps it to a JSJavaThreadState structure,
* where we store all our per-thread private data. If no existing thread state
* is found, a new one is created.
*
* If an error occurs, returns NULL and sets the errp argument to an error
* message, which the caller is responsible for free'ing.
*/
JSJavaThreadState *
jsj_MapJavaThreadToJSJavaThreadState(JNIEnv *jEnv, char **errp)
{
JSJavaThreadState *jsj_env;
SystemJavaVM *java_vm;
JSJavaVM *jsjava_vm;
/* If we found an existing thread state, just return it. */
jsj_env = find_jsjava_thread(jEnv);
if (jsj_env)
return jsj_env;
/* No one set up a LiveConnect thread state for a given Java thread.
Invoke the callback to create one on-the-fly. */
/* First, figure out which Java VM is calling us */
if (JSJ_callbacks && JSJ_callbacks->get_java_vm)
java_vm = JSJ_callbacks->get_java_vm(jEnv);
if (java_vm == NULL)
return NULL;
/* Get our private JavaVM data */
jsjava_vm = map_java_vm_to_jsjava_vm(java_vm);
if (!jsjava_vm) {
*errp = JS_smprintf("Total weirdness: No JSJavaVM wrapper ever created "
"for JavaVM 0x%08x", java_vm);
return NULL;
}
jsj_env = new_jsjava_thread_state(jsjava_vm, NULL, jEnv);
if (!jsj_env)
return NULL;
return jsj_env;
}
// static
void
XPCThrower::Verbosify(XPCCallContext& ccx,
char** psz, PRBool own)
{
char* sz = nsnull;
if(ccx.HasInterfaceAndMember())
{
XPCNativeInterface* iface = ccx.GetInterface();
#ifdef XPC_IDISPATCH_SUPPORT
NS_ASSERTION(ccx.GetIDispatchMember() == nsnull ||
ccx.GetMember() == nsnull,
"Both IDispatch member and regular XPCOM member "
"were set in XPCCallContext");
char const * name;
if(ccx.GetIDispatchMember())
{
XPCDispInterface::Member * member =
reinterpret_cast<XPCDispInterface::Member*>(ccx.GetIDispatchMember());
if(member && JSVAL_IS_STRING(member->GetName()))
{
name = JS_GetStringBytes(JSVAL_TO_STRING(member->GetName()));
}
else
name = "Unknown";
}
else
name = iface->GetMemberName(ccx, ccx.GetMember());
sz = JS_smprintf("%s [%s.%s]",
*psz,
iface->GetNameString(),
name);
#else
sz = JS_smprintf("%s [%s.%s]",
*psz,
iface->GetNameString(),
iface->GetMemberName(ccx, ccx.GetMember()));
#endif
}
if(sz)
{
if(own)
JS_smprintf_free(*psz);
*psz = sz;
}
}
static JSBool
ThrowCallFailed(JSContext *cx, nsresult rv,
const char *ifaceName, const char *memberName)
{
// From XPCThrower::ThrowBadResult.
char* sz;
const char* format;
const char* name;
/*
* If there is a pending exception when the native call returns and
* it has the same error result as returned by the native call, then
* the native call may be passing through an error from a previous JS
* call. So we'll just throw that exception into our JS.
*/
if(XPCThrower::CheckForPendingException(rv, cx))
return JS_FALSE;
// else...
if(!nsXPCException::NameAndFormatForNSResult(
NS_ERROR_XPC_NATIVE_RETURNED_FAILURE, nsnull, &format) ||
!format)
{
format = "";
}
if(nsXPCException::NameAndFormatForNSResult(rv, &name, nsnull)
&& name)
{
sz = JS_smprintf("%s 0x%x (%s) [%s.%s]",
format, rv, name, ifaceName, memberName);
}
else
{
sz = JS_smprintf("%s 0x%x [%s.%s]",
format, rv, ifaceName, memberName);
}
XPCThrower::BuildAndThrowException(cx, rv, sz);
if(sz)
JS_smprintf_free(sz);
return JS_FALSE;
}
static void
_interpreterTrace(JSDContext* jsdc, JSContext *cx, JSStackFrame *fp,
JSBool before)
{
JSDScript* jsdscript = NULL;
JSScript * script;
static indent = 0;
char* buf;
const char* funName = NULL;
script = JS_GetFrameScript(cx, fp);
if(script)
{
JSD_LOCK_SCRIPTS(jsdc);
jsdscript = jsd_FindJSDScript(jsdc, script);
JSD_UNLOCK_SCRIPTS(jsdc);
if(jsdscript)
funName = JSD_GetScriptFunctionName(jsdc, jsdscript);
}
if(!funName)
funName = "TOP_LEVEL";
if(before)
{
buf = JS_smprintf("%sentering %s %s this: %0x\n",
_indentSpaces(indent++),
funName,
JS_IsConstructorFrame(cx, fp) ? "constructing":"",
(int)JS_GetFrameThis(cx, fp));
}
else
{
buf = JS_smprintf("%sleaving %s\n",
_indentSpaces(--indent),
funName);
}
JS_ASSERT(indent >= 0);
if(!buf)
return;
printf(buf);
free(buf);
}
/* This shutdown routine discards all JNI references to Java objects
that have been reflected into JS, even if there are still references
to them from JS. */
void
jsj_DiscardJavaClassReflections(JNIEnv *jEnv)
{
JSJavaThreadState *jsj_env;
char *err_msg;
JSContext *cx;
/* Get the per-thread state corresponding to the current Java thread */
jsj_env = jsj_MapJavaThreadToJSJavaThreadState(jEnv, &err_msg);
JS_ASSERT(jsj_env);
if (!jsj_env)
goto error;
/* Get the JSContext that we're supposed to use for this Java thread */
cx = jsj_env->cx;
if (!cx) {
/* We called spontaneously into JS from Java, rather than from JS into
Java and back into JS. Invoke a callback to obtain/create a
JSContext for us to use. */
if (JSJ_callbacks->map_jsj_thread_to_js_context) {
#ifdef OJI
cx = JSJ_callbacks->map_jsj_thread_to_js_context(jsj_env,
NULL, /* FIXME: What should this argument be ? */
jEnv, &err_msg);
#else
cx = JSJ_callbacks->map_jsj_thread_to_js_context(jsj_env,
jEnv, &err_msg);
#endif
if (!cx)
goto error;
} else {
err_msg = JS_smprintf("Unable to find/create JavaScript execution "
"context for JNI thread 0x%08x", jEnv);
goto error;
}
}
if (java_class_reflections) {
JSJ_HashTableEnumerateEntries(java_class_reflections,
enumerate_remove_java_class,
(void*)jsj_env);
JSJ_HashTableDestroy(java_class_reflections);
java_class_reflections = NULL;
}
return;
error:
JS_ASSERT(!cx);
if (err_msg) {
jsj_LogError(err_msg);
JS_smprintf_free(err_msg);
}
}
static char *
_describeObj(JSDContext* jsdc, JSDObject *jsdobj)
{
return
JS_smprintf("%0x new'd in %s at line %d using ctor %s in %s at line %d",
(int)jsdobj,
JSD_GetObjectNewURL(jsdc, jsdobj),
JSD_GetObjectNewLineNumber(jsdc, jsdobj),
JSD_GetObjectConstructorName(jsdc, jsdobj),
JSD_GetObjectConstructorURL(jsdc, jsdobj),
JSD_GetObjectConstructorLineNumber(jsdc, jsdobj));
}
/*
* Same as jsj_ReportJavaError, except "internal error: " is prepended
* to message.
*/
void
jsj_UnexpectedJavaError(JSContext *cx, JNIEnv *env, const char *format, ...)
{
va_list ap;
const char *format2;
va_start(ap, format);
format2 = JS_smprintf("internal error: %s", format);
if (format2) {
vreport_java_error(cx, env, format2, ap);
JS_smprintf_free((void*)format2);
}
va_end(ap);
}
/*
* At certain times during initialization, there may be no JavaScript context
* available to direct error reports to, in which case the error messages
* are sent to this function. The caller is responsible for free'ing
* the js_error_msg argument.
*/
static void
report_java_initialization_error(JNIEnv *jEnv, const char *js_error_msg)
{
const char *error_msg, *java_error_msg;
java_error_msg = NULL;
if (jEnv) {
java_error_msg = jsj_GetJavaErrorMessage(jEnv);
(*jEnv)->ExceptionClear(jEnv);
}
if (java_error_msg) {
error_msg = JS_smprintf("initialization error: %s (%s)\n",
js_error_msg, java_error_msg);
free((void*)java_error_msg);
} else {
error_msg = JS_smprintf("initialization error: %s\n",
js_error_msg);
}
jsj_LogError(error_msg);
free((void*)error_msg);
}
JavaPackage_convert(JSContext *cx, JSObject *obj, JSType type, jsval *vp)
{
JSString *str;
char *name, *cp;
JavaPackage_Private *package = JS_GetPrivate(cx, obj);
if (!package) {
fprintf(stderr, "JavaPackage_resolve: no private data!\n");
return JS_FALSE;
}
switch (type) {
/* Pretty-printing of JavaPackage */
case JSTYPE_VOID: /* Default value */
case JSTYPE_NUMBER:
case JSTYPE_STRING:
/* Convert '/' to '.' so that it looks like Java language syntax. */
if (!package->path)
break;
name = JS_smprintf("[JavaPackage %s]", package->path);
if (!name) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
for (cp = name; *cp != '\0'; cp++)
if (*cp == '/')
*cp = '.';
str = JS_NewString(cx, name, strlen(name));
if (!str) {
free(name);
/* It's not necessary to call JS_ReportOutOfMemory(), as
JS_NewString() will do so on failure. */
return JS_FALSE;
}
*vp = STRING_TO_JSVAL(str);
break;
case JSTYPE_OBJECT:
*vp = OBJECT_TO_JSVAL(obj);
break;
default:
break;
}
return JS_TRUE;
}
/* string toString (); */
NS_IMETHODIMP
nsXPCException::ToString(char **_retval)
{
if(!_retval)
return NS_ERROR_NULL_POINTER;
if(!mInitialized)
return NS_ERROR_NOT_INITIALIZED;
static const char defaultMsg[] = "<no message>";
static const char defaultLocation[] = "<unknown>";
static const char format[] =
"[Exception... \"%s\" nsresult: \"0x%x (%s)\" location: \"%s\" data: %s]";
char* indicatedLocation = nsnull;
if(mLocation)
{
// we need to free this if it does not fail
nsresult rv = mLocation->ToString(&indicatedLocation);
if(NS_FAILED(rv))
return rv;
}
const char* msg = mMessage ? mMessage : nsnull;
const char* location = indicatedLocation ?
indicatedLocation : defaultLocation;
const char* resultName = mName;
if(!resultName && !NameAndFormatForNSResult(mResult, &resultName,
(!msg) ? &msg : nsnull))
{
if(!msg)
msg = defaultMsg;
resultName = "<unknown>";
}
const char* data = mData ? "yes" : "no";
char* temp = JS_smprintf(format, msg, mResult, resultName, location, data);
if(indicatedLocation)
nsMemory::Free(indicatedLocation);
char* final = nsnull;
if(temp)
{
final = (char*) nsMemory::Clone(temp, sizeof(char)*(strlen(temp)+1));
JS_smprintf_free(temp);
}
static JSBool
env_setProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
/* XXX porting may be easy, but these don't seem to supply setenv by default */
#if !defined XP_BEOS && !defined XP_OS2 && !defined SOLARIS
JSString *idstr, *valstr;
const char *name, *value;
int rv;
idstr = JS_ValueToString(cx, id);
valstr = JS_ValueToString(cx, *vp);
if (!idstr || !valstr)
return JS_FALSE;
name = JS_GetStringBytes(idstr);
value = JS_GetStringBytes(valstr);
#if defined XP_WIN || defined HPUX || defined OSF1 || defined IRIX \
|| defined SCO
{
char *waste = JS_smprintf("%s=%s", name, value);
if (!waste) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
rv = putenv(waste);
#ifdef XP_WIN
/*
* HPUX9 at least still has the bad old non-copying putenv.
*
* Per mail from <*****@*****.**>, 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, value, 1);
#endif
if (rv < 0) {
JS_ReportError(cx, "can't set envariable %s to %s", name, value);
return JS_FALSE;
}
*vp = STRING_TO_JSVAL(valstr);
#endif /* !defined XP_BEOS && !defined XP_OS2 && !defined SOLARIS */
return JS_TRUE;
}
// static
void
XPCThrower::Verbosify(XPCCallContext& ccx,
char** psz, PRBool own)
{
char* sz = nsnull;
if(ccx.HasInterfaceAndMember())
{
XPCNativeInterface* iface = ccx.GetInterface();
jsid id = JSID_VOID;
#ifdef XPC_IDISPATCH_SUPPORT
NS_ASSERTION(ccx.GetIDispatchMember() == nsnull ||
ccx.GetMember() == nsnull,
"Both IDispatch member and regular XPCOM member "
"were set in XPCCallContext");
if(ccx.GetIDispatchMember())
{
XPCDispInterface::Member * member =
reinterpret_cast<XPCDispInterface::Member*>(ccx.GetIDispatchMember());
if(member && JSID_IS_STRING(member->GetName()))
{
id = member->GetName();
}
}
else
#endif
{
id = ccx.GetMember()->GetName();
}
JSAutoByteString bytes;
const char *name = JSID_IS_VOID(id) ? "Unknown" : bytes.encode(ccx, JSID_TO_STRING(id));
if(!name)
{
name = "";
}
sz = JS_smprintf("%s [%s.%s]", *psz, iface->GetNameString(), name);
}
if(sz)
{
if(own)
JS_smprintf_free(*psz);
*psz = sz;
}
}
static void
ThrowBadArg(JSContext *cx, nsresult rv,
const char *ifaceName, const char *memberName, uintN paramnum)
{
// From XPCThrower::ThrowBadParam.
char* sz;
const char* format;
if(!nsXPCException::NameAndFormatForNSResult(rv, nsnull, &format))
format = "";
sz = JS_smprintf("%s arg %u [%s.%s]",
format, (unsigned int) paramnum, ifaceName, memberName);
XPCThrower::BuildAndThrowException(cx, rv, sz);
if(sz)
JS_smprintf_free(sz);
}
// static
void
XPCThrower::ThrowBadParam(nsresult rv, uintN paramNum, XPCCallContext& ccx)
{
char* sz;
const char* format;
if(!nsXPCException::NameAndFormatForNSResult(rv, nsnull, &format))
format = "";
sz = JS_smprintf("%s arg %d", format, paramNum);
if(sz && sVerbose)
Verbosify(ccx, &sz, PR_TRUE);
BuildAndThrowException(ccx, rv, sz);
if(sz)
JS_smprintf_free(sz);
}
JavaClass_convert(JSContext *cx, JSObject *obj, JSType type, jsval *vp)
{
char *name;
JSString *str;
JavaClassDescriptor *class_descriptor;
class_descriptor = JS_GetPrivate(cx, obj);
if (!class_descriptor)
return JS_FALSE;
switch(type) {
case JSTYPE_STRING:
/* Convert '/' to '.' so that it looks like Java language syntax. */
if (!class_descriptor->name)
break;
name = JS_smprintf("[JavaClass %s]", class_descriptor->name);
if (!name) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
str = JS_NewString(cx, name, strlen(name));
if (!str) {
free(name);
/* It's not necessary to call JS_ReportOutOfMemory(), as
JS_NewString() will do so on failure. */
return JS_FALSE;
}
*vp = STRING_TO_JSVAL(str);
return JS_TRUE;
default:
break;
}
return JS_TRUE;
}
JSBool PJS_invoke_perl_property_getter(JSContext *cx, JSObject *obj, jsval id, jsval *vp) {
dSP;
PJS_Context *pcx;
PJS_Class *pcls;
PJS_Property *pprop;
SV *caller;
char *name;
jsint slot;
U8 invocation_mode;
if (!(JSVAL_IS_INT(id) || JSVAL_IS_STRING(id))) {
return JS_TRUE;
}
if((pcx = PJS_GET_CONTEXT(cx)) == NULL) {
JS_ReportError(cx, "Can't find context %d", cx);
return JS_FALSE;
}
if (JS_TypeOfValue(cx, OBJECT_TO_JSVAL(obj)) == JSTYPE_OBJECT) {
/* Called as instsance */
JSClass *clasp = PJS_GET_CLASS(cx, obj);
name = (char *) clasp->name;
invocation_mode = 1;
}
else {
/* Called as static */
JSFunction *parent_jfunc = JS_ValueToFunction(cx, OBJECT_TO_JSVAL(obj));
if (parent_jfunc == NULL) {
JS_ReportError(cx, "Failed to extract class for static property getter");
return JS_FALSE;
}
name = (char *) JS_GetFunctionName(parent_jfunc);
invocation_mode = 0;
}
if ((pcls = PJS_GetClassByName(pcx, name)) == NULL) {
JS_ReportError(cx, "Can't find class '%s'", name);
return JS_FALSE;
}
if (invocation_mode) {
caller = (SV *) JS_GetPrivate(cx, obj);
}
else {
caller = newSVpv(pcls->pkg, 0);
}
if (JSVAL_IS_INT(id)) {
slot = JSVAL_TO_INT(id);
if ((pprop = PJS_get_property_by_id(pcls, (int8) slot)) == NULL) {
if (SvTRUE(pcls->property_getter)) {
if (perl_call_sv_with_jsvals(cx, obj, pcls->property_getter, caller, 1, &id, vp) < 0) {
return JS_FALSE;
}
return JS_TRUE;
}
JS_ReportError(cx, "Can't find property handler");
return JS_FALSE;
}
if (pprop->getter == NULL) {
JS_ReportError(cx, "Property is write-only");
return JS_FALSE;
}
if (perl_call_sv_with_jsvals(cx, obj, pprop->getter, caller, 0, NULL, vp) < 0) {
return JS_FALSE;
}
}
else if (JSVAL_IS_STRING(id) && SvTRUE(pcls->property_getter)) {
SV *sv = sv_newmortal();
#ifdef JS_C_STRINGS_ARE_UTF8
char *tmp = JS_smprintf("%hs", JS_GetStringChars(JSVAL_TO_STRING(id)));
sv_setpv(sv, tmp);
SvUTF8_on(sv);
free(tmp);
#else
sv_setpv(sv, JS_GetStringBytes(JSVAL_TO_STRING(id)));
#endif
if (PJS_get_method_by_name(pcls, SvPV_nolen(sv))) {
return JS_TRUE;
}
if (perl_call_sv_with_jsvals(cx, obj, pcls->property_getter, caller, 1, &id, vp) < 0) {
return JS_FALSE;
}
}
return JS_TRUE;
}
static JSBool
global_resolve(JSContext *cx, JSHandleObject obj, JSHandleId id, unsigned flags,
MutableHandleObject objp)
{
#ifdef LAZY_STANDARD_CLASSES
if ((flags & JSRESOLVE_ASSIGNING) == 0) {
JSBool resolved;
if (!JS_ResolveStandardClass(cx, obj, id, &resolved))
return JS_FALSE;
if (resolved) {
objp.set(obj);
return JS_TRUE;
}
}
#endif
#if defined(SHELL_HACK) && defined(DEBUG) && defined(XP_UNIX)
if ((flags & (JSRESOLVE_QUALIFIED | JSRESOLVE_ASSIGNING)) == 0) {
/*
* Do this expensive hack only for unoptimized Unix builds, which are
* not used for benchmarking.
*/
char *path, *comp, *full;
const char *name;
JSBool ok, found;
JSFunction *fun;
if (!JSVAL_IS_STRING(id))
return JS_TRUE;
path = getenv("PATH");
if (!path)
return JS_TRUE;
path = JS_strdup(cx, path);
if (!path)
return JS_FALSE;
name = JS_GetStringBytes(JSVAL_TO_STRING(id));
ok = JS_TRUE;
for (comp = strtok(path, ":"); comp; comp = strtok(NULL, ":")) {
if (*comp != '\0') {
full = JS_smprintf("%s/%s", comp, name);
if (!full) {
JS_ReportOutOfMemory(cx);
ok = JS_FALSE;
break;
}
} else {
full = (char *)name;
}
found = (access(full, X_OK) == 0);
if (*comp != '\0')
free(full);
if (found) {
fun = JS_DefineFunction(cx, obj, name, Exec, 0, JSPROP_ENUMERATE);
ok = (fun != NULL);
if (ok)
objp.set(obj);
break;
}
}
JS_free(cx, path);
return ok;
}
#else
return JS_TRUE;
#endif
}
static JSCallsite *
CallTree(uint32 *bp)
{
uint32 *bpup, *bpdown, pc;
JSCallsite *parent, *site, **csp;
Dl_info info;
int ok, offset;
const char *symbol;
char *method;
/* Reverse the stack frame list to avoid recursion. */
bpup = NULL;
for (;;) {
bpdown = (uint32*) bp[0];
bp[0] = (uint32) bpup;
if ((uint32*) bpdown[0] < bpdown)
break;
bpup = bp;
bp = bpdown;
}
/* Reverse the stack again, finding and building a path in the tree. */
parent = &js_calltree_root;
do {
bpup = (uint32*) bp[0];
bp[0] = (uint32) bpdown;
pc = bp[1];
csp = &parent->kids;
while ((site = *csp) != NULL) {
if (site->pc == pc) {
/* Put the most recently used site at the front of siblings. */
*csp = site->siblings;
site->siblings = parent->kids;
parent->kids = site;
/* Site already built -- go up the stack. */
goto upward;
}
csp = &site->siblings;
}
/* Check for recursion: see if pc is on our ancestor line. */
for (site = parent; site; site = site->parent) {
if (site->pc == pc)
goto upward;
}
/*
* Not in tree at all: let's find our symbolic callsite info.
* XXX static syms are masked by nearest lower global
*/
info.dli_fname = info.dli_sname = NULL;
ok = dladdr((void*) pc, &info);
if (ok < 0) {
fprintf(stderr, "dladdr failed!\n");
return NULL;
}
/* XXXbe sub 0x08040000? or something, see dbaron bug with tenthumbs comment */
symbol = info.dli_sname;
offset = (char*)pc - (char*)info.dli_fbase;
method = symbol
? strdup(symbol)
: JS_smprintf("%s+%X",
info.dli_fname ? info.dli_fname : "main",
offset);
if (!method)
return NULL;
/* Create a new callsite record. */
site = (JSCallsite *) malloc(sizeof(JSCallsite));
if (!site)
return NULL;
/* Insert the new site into the tree. */
site->pc = pc;
site->name = method;
site->library = info.dli_fname;
site->offset = offset;
site->parent = parent;
site->siblings = parent->kids;
parent->kids = site;
site->kids = NULL;
upward:
parent = site;
bpdown = bp;
bp = bpup;
} while (bp);
return site;
}
JSJavaThreadState *
jsj_enter_js(JNIEnv *jEnv, void* applet_obj, jobject java_wrapper_obj,
JSContext **cxp, JSObject **js_objp, JSErrorReporter *old_error_reporterp,
void **pNSIPrincipaArray, int numPrincipals, void *pNSISecurityContext)
{
JSContext *cx;
char *err_msg;
JSObject *js_obj;
JSJavaThreadState *jsj_env;
cx = NULL;
err_msg = NULL;
/* Invoke callback, presumably used to implement concurrency constraints */
if (JSJ_callbacks && JSJ_callbacks->enter_js_from_java) {
#ifdef OJI
if (!JSJ_callbacks->enter_js_from_java(jEnv, &err_msg, pNSIPrincipaArray, numPrincipals, pNSISecurityContext,applet_obj))
#else
if (!JSJ_callbacks->enter_js_from_java(jEnv, &err_msg))
#endif
goto entry_failure;
}
/* Check the JSObject pointer in the wrapper object. */
if (js_objp) {
#ifdef PRESERVE_JSOBJECT_IDENTITY
#if JS_BYTES_PER_LONG == 8
js_obj = (JSObject *)((*jEnv)->GetLongField(jEnv, java_wrapper_obj, njJSObject_long_internal));
#else
js_obj = (JSObject *)((*jEnv)->GetIntField(jEnv, java_wrapper_obj, njJSObject_internal));
#endif
#else /* !PRESERVE_JSOBJECT_IDENTITY */
js_obj = jsj_UnwrapJSObjectWrapper(jEnv, java_wrapper_obj);
#endif /* PRESERVE_JSOBJECT_IDENTITY */
JS_ASSERT(js_obj);
if (!js_obj)
goto error;
*js_objp = js_obj;
}
/* Get the per-thread state corresponding to the current Java thread */
jsj_env = jsj_MapJavaThreadToJSJavaThreadState(jEnv, &err_msg);
if (!jsj_env)
goto error;
/* Get the JSContext that we're supposed to use for this Java thread */
cx = jsj_env->cx;
if (!cx) {
/* We called spontaneously into JS from Java, rather than from JS into
Java and back into JS. Invoke a callback to obtain/create a
JSContext for us to use. */
if (JSJ_callbacks && JSJ_callbacks->map_jsj_thread_to_js_context) {
#ifdef OJI
cx = JSJ_callbacks->map_jsj_thread_to_js_context(jsj_env,
applet_obj,
jEnv, &err_msg);
#else
cx = JSJ_callbacks->map_jsj_thread_to_js_context(jsj_env,
jEnv, &err_msg);
#endif
if (!cx)
goto error;
} else {
err_msg = JS_smprintf("Unable to find/create JavaScript execution "
"context for JNI thread 0x%08x", jEnv);
goto error;
}
}
*cxp = cx;
/*
* Capture all JS error reports so that they can be thrown into the Java
* caller as an instance of netscape.javascript.JSException.
*/
*old_error_reporterp =
JS_SetErrorReporter(cx, capture_js_error_reports_for_java);
#ifdef JSJ_THREADSAFE
JS_BeginRequest(cx);
#endif
return jsj_env;
error:
/* Invoke callback, presumably used to implement concurrency constraints */
if (JSJ_callbacks && JSJ_callbacks->exit_js)
JSJ_callbacks->exit_js(jEnv, cx);
entry_failure:
if (err_msg) {
if (cx)
JS_ReportError(cx, err_msg);
else
jsj_LogError(err_msg);
free(err_msg);
}
return NULL;
}
my_ErrorReporter(JSContext *cx, const char *message, JSErrorReport *report)
{
int i, j, k, n;
char *prefix = NULL, *tmp;
const char *ctmp;
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);
}
bool
PrintError(JSContext *cx, FILE *file, const char *message, JSErrorReport *report,
bool reportWarnings)
{
if (!report) {
fprintf(file, "%s\n", message);
fflush(file);
return false;
}
/* Conditionally ignore reported warnings. */
if (JSREPORT_IS_WARNING(report->flags) && !reportWarnings)
return false;
char *prefix = NULL;
if (report->filename)
prefix = JS_smprintf("%s:", report->filename);
if (report->lineno) {
char *tmp = prefix;
prefix = JS_smprintf("%s%u:%u ", tmp ? tmp : "", report->lineno, report->column);
JS_free(cx, tmp);
}
if (JSREPORT_IS_WARNING(report->flags)) {
char *tmp = prefix;
prefix = JS_smprintf("%s%swarning: ",
tmp ? tmp : "",
JSREPORT_IS_STRICT(report->flags) ? "strict " : "");
JS_free(cx, tmp);
}
/* embedded newlines -- argh! */
const char *ctmp;
while ((ctmp = strchr(message, '\n')) != 0) {
ctmp++;
if (prefix)
fputs(prefix, file);
fwrite(message, 1, ctmp - message, file);
message = ctmp;
}
/* If there were no filename or lineno, the prefix might be empty */
if (prefix)
fputs(prefix, file);
fputs(message, file);
if (report->linebuf) {
/* report->linebuf usually ends with a newline. */
int n = strlen(report->linebuf);
fprintf(file, ":\n%s%s%s%s",
prefix,
report->linebuf,
(n > 0 && report->linebuf[n-1] == '\n') ? "" : "\n",
prefix);
n = report->tokenptr - report->linebuf;
for (int i = 0, j = 0; i < n; i++) {
if (report->linebuf[i] == '\t') {
for (int k = (j + 8) & ~7; j < k; j++) {
fputc('.', file);
}
continue;
}
fputc('.', file);
j++;
}
fputc('^', file);
}
fputc('\n', file);
fflush(file);
JS_free(cx, prefix);
return true;
}
JavaPackage_resolve(JSContext *cx, JSObject *obj, jsval id)
{
JavaPackage_Private *package;
JSBool ok = JS_TRUE;
jclass jclazz;
char *subPath, *newPath;
const char *path;
JNIEnv *jEnv;
JSJavaThreadState *jsj_env;
/* Painful hack for pre_define_java_packages() */
if (quiet_resolve_failure)
return JS_FALSE;
package = (JavaPackage_Private *)JS_GetPrivate(cx, obj);
if (!package)
return JS_TRUE;
if (!JSVAL_IS_STRING(id))
return JS_TRUE;
subPath = JS_GetStringBytes(JSVAL_TO_STRING(id));
/*
* There will be an attempt to invoke the toString() method when producing
* the string representation of a JavaPackage. When this occurs, avoid
* creating a bogus toString package. (This means that no one can ever
* create a package with the simple name "toString", but we'll live with
* that limitation.)
*/
if (!strcmp(subPath, "toString"))
return JS_FALSE;
path = package->path;
newPath = JS_smprintf("%s%s%s", path, (path[0] ? "/" : ""), subPath);
if (!newPath) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
jsj_env = jsj_EnterJava(cx, &jEnv);
if (!jEnv) {
ok = JS_FALSE;
goto out;
}
/*
Unfortunately, Java provides no way to find out whether a particular
name is a package or not. The only way to tell is to try to load the
name as a class file and, if that fails, assume it's a package. This
makes things work as expected for the most part, but it has three
noticeable problems that keep coming up:
- You can refer to a package like java.lang.i.buried.paul without
generating a complaint. Of course, you'll never be able to refer to
any classes through it.
- An annoying consequence of the above is that misspelling a class name
results in a cryptic error about packages.
- In a browser context, i.e. where applets are involved, figuring out
whether something is a class may require looking for it over the net
using the current classloader. This means that the first time you
refer to java.lang.System in a js context, there will be an attempt
to search for [[DOCBASE]]/java.class on the server.
A solution is to explicitly tell jsjava the names of all the (local)
packages on the CLASSPATH. (Not implemented yet.)
*/
jclazz = (*jEnv)->FindClass(jEnv, newPath);
if (jclazz) {
JSObject *newClass;
newClass = jsj_define_JavaClass(cx, jEnv, obj, subPath, jclazz);
(*jEnv)->DeleteLocalRef(jEnv, jclazz);
if (!newClass) {
ok = JS_FALSE;
goto out;
}
} else {
/* We assume that any failed attempt to load a class is because it
doesn't exist. If we wanted to do a better job, we would check
the exception type and make sure that it's NoClassDefFoundError */
(*jEnv)->ExceptionClear(jEnv);
/*
* If there's no class of the given name, then we must be referring to
* a package. However, don't allow bogus sub-packages of pre-defined
* system packages to be created.
*/
if (JS_InstanceOf(cx, obj, &JavaPackage_class, NULL)) {
JavaPackage_Private *current_package;
current_package = JS_GetPrivate(cx, obj);
if (current_package->flags & PKG_SYSTEM) {
char *msg, *cp;
msg = JS_strdup(cx, newPath);
/* Check for OOM */
if (msg) {
/* Convert package of form "java/lang" to "java.lang" */
for (cp = msg; *cp != '\0'; cp++)
if (*cp == '/')
*cp = '.';
JS_ReportErrorNumber(cx, jsj_GetErrorMessage, NULL,
JSJMSG_MISSING_PACKAGE, msg);
free((char*)msg);
}
ok = JS_FALSE;
goto out;
}
}
if (!define_JavaPackage(cx, obj, subPath, newPath, 0, JSPROP_READONLY)) {
ok = JS_FALSE;
goto out;
}
#ifdef DEBUG
/* printf("JavaPackage \'%s\' created\n", newPath); */
#endif
}
out:
free(newPath);
jsj_ExitJava(jsj_env);
return ok;
}
