/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include "JSValue.h"
#include "JSObject.h"
#include "types.h"
#include "interpreter.h"
#include "npruntime_internal.h"
#include "runtime.h"
#include "runtime_object.h"
#define LOG(formatAndArgs...) { \
fprintf (stderr, "%s: ", __PRETTY_FUNCTION__); \
fprintf(stderr, formatAndArgs); \
}
// ------------------ NP Interface definition --------------------
typedef struct
{
NPObject object;
double doubleValue;
int intValue;
NPVariant stringValue;
bool boolValue;
} MyObject;
static bool identifiersInitialized = false;
#define ID_DOUBLE_VALUE 0
#define ID_INT_VALUE 1
#define ID_STRING_VALUE 2
#define ID_BOOLEAN_VALUE 3
#define ID_NULL_VALUE 4
#define ID_UNDEFINED_VALUE 5
#define NUM_PROPERTY_IDENTIFIERS 6
static NPIdentifier myPropertyIdentifiers[NUM_PROPERTY_IDENTIFIERS];
static const NPUTF8 *myPropertyIdentifierNames[NUM_PROPERTY_IDENTIFIERS] = {
"doubleValue",
"intValue",
"stringValue",
"booleanValue",
"nullValue",
"undefinedValue"
};
#define ID_LOG_MESSAGE 0
#define ID_SET_DOUBLE_VALUE 1
#define ID_SET_INT_VALUE 2
#define ID_SET_STRING_VALUE 3
#define ID_SET_BOOLEAN_VALUE 4
#define ID_GET_DOUBLE_VALUE 5
#define ID_GET_INT_VALUE 6
#define ID_GET_STRING_VALUE 7
#define ID_GET_BOOLEAN_VALUE 8
#define NUM_METHOD_IDENTIFIERS 9
static NPIdentifier myMethodIdentifiers[NUM_METHOD_IDENTIFIERS];
static const NPUTF8 *myMethodIdentifierNames[NUM_METHOD_IDENTIFIERS] = {
"logMessage",
"setDoubleValue",
"setIntValue",
"setStringValue",
"setBooleanValue",
"getDoubleValue",
"getIntValue",
"getStringValue",
"getBooleanValue"
};
static void initializeIdentifiers()
{
NPN_GetStringIdentifiers (myPropertyIdentifierNames, NUM_PROPERTY_IDENTIFIERS, myPropertyIdentifiers);
NPN_GetStringIdentifiers (myMethodIdentifierNames, NUM_METHOD_IDENTIFIERS, myMethodIdentifiers);
};
bool myHasProperty (NPClass *theClass, NPIdentifier name)
{
int i;
for (i = 0; i < NUM_PROPERTY_IDENTIFIERS; i++) {
if (name == myPropertyIdentifiers[i]){
return true;
}
}
return false;
}
bool myHasMethod (NPClass *theClass, NPIdentifier name)
{
int i;
for (i = 0; i < NUM_METHOD_IDENTIFIERS; i++) {
if (name == myMethodIdentifiers[i]){
return true;
}
}
return false;
}
void logMessage (const NPVariant *message)
{
if (message->type == NPVariantStringType) {
char msgBuf[1024];
strncpy (msgBuf, message->value.stringValue.UTF8Characters, message->value.stringValue.UTF8Length);
msgBuf[message->value.stringValue.UTF8Length] = 0;
printf ("%s\n", msgBuf);
}
else if (message->type == NPVariantDoubleType)
printf ("%f\n", (float)message->value.doubleValue);
else if (message->type == NPVariantInt32Type)
printf ("%d\n", message->value.intValue);
else if (message->type == NPVariantObjectType)
printf ("%p\n", message->value.objectValue);
}
void setDoubleValue (MyObject *obj, const NPVariant *variant)
{
if (!NPN_VariantToDouble (variant, &obj->doubleValue)) {
NPUTF8 *msg = "Attempt to set double value with invalid type.";
NPString aString;
aString.UTF8Characters = msg;
aString.UTF8Length = strlen (msg);
NPN_SetException ((NPObject *)obj, &aString);
}
}
void setIntValue (MyObject *obj, const NPVariant *variant)
{
if (!NPN_VariantToInt32 (variant, &obj->intValue)) {
NPUTF8 *msg = "Attempt to set int value with invalid type.";
NPString aString;
aString.UTF8Characters = msg;
aString.UTF8Length = strlen (msg);
NPN_SetException ((NPObject *)obj, &aString);
}
}
void setStringValue (MyObject *obj, const NPVariant *variant)
{
NPN_ReleaseVariantValue (&obj->stringValue);
NPN_InitializeVariantWithVariant (&obj->stringValue, variant);
}
void setBooleanValue (MyObject *obj, const NPVariant *variant)
{
if (!NPN_VariantToBool (variant, (NPBool *)&obj->boolValue)) {
NPUTF8 *msg = "Attempt to set bool value with invalid type.";
NPString aString;
aString.UTF8Characters = msg;
aString.UTF8Length = strlen (msg);
NPN_SetException ((NPObject *)obj, &aString);
}
}
void getDoubleValue (MyObject *obj, NPVariant *variant)
{
NPN_InitializeVariantWithDouble (variant, obj->doubleValue);
}
void getIntValue (MyObject *obj, NPVariant *variant)
{
NPN_InitializeVariantWithInt32 (variant, obj->intValue);
}
void getStringValue (MyObject *obj, NPVariant *variant)
{
NPN_InitializeVariantWithVariant (variant, &obj->stringValue);
}
void getBooleanValue (MyObject *obj, NPVariant *variant)
{
NPN_InitializeVariantWithBool (variant, obj->boolValue);
}
void myGetProperty (MyObject *obj, NPIdentifier name, NPVariant *variant)
{
if (name == myPropertyIdentifiers[ID_DOUBLE_VALUE]){
getDoubleValue (obj, variant);
}
else if (name == myPropertyIdentifiers[ID_INT_VALUE]){
getIntValue (obj, variant);
}
else if (name == myPropertyIdentifiers[ID_STRING_VALUE]){
getStringValue (obj, variant);
}
else if (name == myPropertyIdentifiers[ID_BOOLEAN_VALUE]){
getBooleanValue (obj, variant);
}
else if (name == myPropertyIdentifiers[ID_NULL_VALUE]){
return NPN_InitializeVariantAsNull (variant);
}
else if (name == myPropertyIdentifiers[ID_UNDEFINED_VALUE]){
return NPN_InitializeVariantAsUndefined (variant);
}
else
NPN_InitializeVariantAsUndefined(variant);
}
void mySetProperty (MyObject *obj, NPIdentifier name, const NPVariant *variant)
{
if (name == myPropertyIdentifiers[ID_DOUBLE_VALUE]) {
setDoubleValue (obj, variant);
}
else if (name == myPropertyIdentifiers[ID_INT_VALUE]) {
setIntValue (obj, variant);
}
else if (name == myPropertyIdentifiers[ID_STRING_VALUE]) {
setStringValue (obj, variant);
}
else if (name == myPropertyIdentifiers[ID_BOOLEAN_VALUE]) {
setBooleanValue (obj, variant);
}
else if (name == myPropertyIdentifiers[ID_NULL_VALUE]) {
// Do nothing!
}
else if (name == myPropertyIdentifiers[ID_UNDEFINED_VALUE]) {
// Do nothing!
}
}
void myInvoke (MyObject *obj, NPIdentifier name, NPVariant *args, unsigned argCount, NPVariant *result)
{
if (name == myMethodIdentifiers[ID_LOG_MESSAGE]) {
if (argCount == 1 && NPN_VariantIsString(&args[0]))
logMessage (&args[0]);
NPN_InitializeVariantAsVoid (result);
}
else if (name == myMethodIdentifiers[ID_SET_DOUBLE_VALUE]) {
if (argCount == 1 && NPN_VariantIsDouble (&args[0]))
setDoubleValue (obj, &args[0]);
NPN_InitializeVariantAsVoid (result);
}
else if (name == myMethodIdentifiers[ID_SET_INT_VALUE]) {
if (argCount == 1 && (NPN_VariantIsDouble (&args[0]) || NPN_VariantIsInt32 (&args[0])))
setIntValue (obj, &args[0]);
NPN_InitializeVariantAsVoid (result);
}
else if (name == myMethodIdentifiers[ID_SET_STRING_VALUE]) {
if (argCount == 1 && NPN_VariantIsString (&args[0]))
setStringValue (obj, &args[0]);
NPN_InitializeVariantAsVoid (result);
}
else if (name == myMethodIdentifiers[ID_SET_BOOLEAN_VALUE]) {
if (argCount == 1 && NPN_VariantIsBool (&args[0]))
setBooleanValue (obj, &args[0]);
NPN_InitializeVariantAsVoid (result);
}
else if (name == myMethodIdentifiers[ID_GET_DOUBLE_VALUE]) {
getDoubleValue (obj, result);
}
else if (name == myMethodIdentifiers[ID_GET_INT_VALUE]) {
getIntValue (obj, result);
}
else if (name == myMethodIdentifiers[ID_GET_STRING_VALUE]) {
getStringValue (obj, result);
}
else if (name == myMethodIdentifiers[ID_GET_BOOLEAN_VALUE]) {
getBooleanValue (obj, result);
}
else
NPN_InitializeVariantAsUndefined (result);
}
NPObject *myAllocate ()
{
MyObject *newInstance = (MyObject *)malloc (sizeof(MyObject));
if (!identifiersInitialized) {
identifiersInitialized = true;
initializeIdentifiers();
}
newInstance->doubleValue = 666.666;
newInstance->intValue = 1234;
newInstance->boolValue = true;
newInstance->stringValue.type = NPVariantType_String;
newInstance->stringValue.value.stringValue.UTF8Length = strlen ("Hello world");
newInstance->stringValue.value.stringValue.UTF8Characters = strdup ("Hello world");
return (NPObject *)newInstance;
}
void myInvalidate ()
{
// Make sure we've released any remaining references to JavaScript objects.
}
void myDeallocate (MyObject *obj)
{
free ((void *)obj);
}
static NPClass _myFunctionPtrs = {
kNPClassStructVersionCurrent,
(NPAllocateFunctionPtr) myAllocate,
(NPDeallocateFunctionPtr) myDeallocate,
(NPInvalidateFunctionPtr) myInvalidate,
(NPHasMethodFunctionPtr) myHasMethod,
(NPInvokeFunctionPtr) myInvoke,
(NPHasPropertyFunctionPtr) myHasProperty,
(NPGetPropertyFunctionPtr) myGetProperty,
(NPSetPropertyFunctionPtr) mySetProperty,
};
static NPClass *myFunctionPtrs = &_myFunctionPtrs;
// --------------------------------------------------------
using namespace JSC;
using namespace JSC::Bindings;
class GlobalImp : public ObjectImp {
public:
virtual UString className() const { return "global"; }
};
#define BufferSize 200000
static char code[BufferSize];
const char *readJavaScriptFromFile (const char *file)
{
FILE *f = fopen(file, "r");
if (!f) {
fprintf(stderr, "Error opening %s.\n", file);
return 0;
}
int num = fread(code, 1, BufferSize, f);
code[num] = '\0';
if(num >= BufferSize)
fprintf(stderr, "Warning: File may have been too long.\n");
fclose(f);
return code;
}
int main(int argc, char **argv)
{
// expecting a filename
if (argc < 2) {
fprintf(stderr, "You have to specify at least one filename\n");
return -1;
}
bool ret = true;
{
JSLock lock;
// create interpreter w/ global object
Object global(new GlobalImp());
Interpreter interp;
interp.setGlobalObject(global);
ExecState *exec = interp.globalExec();
MyObject *myObject = (MyObject *)NPN_CreateObject (myFunctionPtrs);
global.put(exec, Identifier("myInterface"), Instance::createRuntimeObject(Instance::CLanguage, (void *)myObject));
for (int i = 1; i < argc; i++) {
const char *code = readJavaScriptFromFile(argv[i]);
if (code) {
// run
Completion comp(interp.evaluate(code));
if (comp.complType() == Throw) {
Value exVal = comp.value();
char *msg = exVal.toString(exec).ascii();
int lineno = -1;
if (exVal.type() == ObjectType) {
Value lineVal = Object::dynamicCast(exVal).get(exec,Identifier("line"));
if (lineVal.type() == NumberType)
lineno = int(lineVal.toNumber(exec));
}
if (lineno != -1)
fprintf(stderr,"Exception, line %d: %s\n",lineno,msg);
else
fprintf(stderr,"Exception: %s\n",msg);
ret = false;
}
else if (comp.complType() == ReturnValue) {
char *msg = comp.value().toString(interp.globalExec()).ascii();
fprintf(stderr,"Return value: %s\n",msg);
}
}
}
NPN_ReleaseObject ((NPObject *)myObject);
} // end block, so that Interpreter and global get deleted
return ret ? 0 : 3;
}