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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 /*
      6  * Copyright (C) 2007 Apple Inc. All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     25  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include "content/shell/tools/plugin/test_object.h"
     31 
     32 #include "PluginObject.h"
     33 
     34 #include <string.h>
     35 #include <stdlib.h>
     36 
     37 static bool testEnumerate(NPObject* npobj,
     38                           NPIdentifier** value,
     39                           uint32_t* count);
     40 static bool testHasMethod(NPObject*, NPIdentifier name);
     41 static bool testInvoke(NPObject*,
     42                        NPIdentifier name,
     43                        const NPVariant* args,
     44                        uint32_t argCount,
     45                        NPVariant* result);
     46 static bool testHasProperty(NPObject*, NPIdentifier name);
     47 static bool testGetProperty(NPObject*, NPIdentifier name, NPVariant*);
     48 static NPObject* testAllocate(NPP npp, NPClass* theClass);
     49 static void testDeallocate(NPObject* obj);
     50 static bool testConstruct(NPObject* obj,
     51                           const NPVariant* args,
     52                           uint32_t argCount,
     53                           NPVariant* result);
     54 
     55 static NPClass g_test_class = {
     56     NP_CLASS_STRUCT_VERSION, testAllocate, testDeallocate, 0,
     57     testHasMethod,           testInvoke,   0,              testHasProperty,
     58     testGetProperty,         0,            0,              testEnumerate,
     59     testConstruct};
     60 
     61 
     62 static int g_test_object_count = 0;
     63 
     64 typedef struct {
     65   NPObject header;
     66   NPObject* testObject;
     67 } TestObject;
     68 
     69 static bool identifiersInitialized = false;
     70 
     71 #define NUM_ENUMERATABLE_TEST_IDENTIFIERS 2
     72 
     73 enum {
     74   ID_PROPERTY_FOO = 0,
     75   ID_PROPERTY_BAR,
     76   ID_PROPERTY_OBJECT_POINTER,
     77   ID_PROPERTY_TEST_OBJECT,
     78   ID_PROPERTY_REF_COUNT,
     79   NUM_TEST_IDENTIFIERS,
     80 };
     81 
     82 static NPIdentifier testIdentifiers[NUM_TEST_IDENTIFIERS];
     83 static const NPUTF8* testIdentifierNames[NUM_TEST_IDENTIFIERS] = {
     84     "foo", "bar", "objectPointer", "testObject", "refCount", };
     85 
     86 #define ID_THROW_EXCEPTION_METHOD 0
     87 #define NUM_METHOD_IDENTIFIERS 1
     88 
     89 static NPIdentifier testMethodIdentifiers[NUM_METHOD_IDENTIFIERS];
     90 static const NPUTF8* testMethodIdentifierNames[NUM_METHOD_IDENTIFIERS] = {
     91     "throwException", };
     92 
     93 static void initializeIdentifiers(void) {
     94   browser->getstringidentifiers(
     95       testIdentifierNames, NUM_TEST_IDENTIFIERS, testIdentifiers);
     96   browser->getstringidentifiers(
     97       testMethodIdentifierNames, NUM_METHOD_IDENTIFIERS, testMethodIdentifiers);
     98 }
     99 
    100 static NPObject* testAllocate(NPP npp, NPClass* /*theClass*/) {
    101   TestObject* newInstance =
    102       static_cast<TestObject*>(malloc(sizeof(TestObject)));
    103   newInstance->testObject = 0;
    104   ++g_test_object_count;
    105 
    106   if (!identifiersInitialized) {
    107     identifiersInitialized = true;
    108     initializeIdentifiers();
    109   }
    110 
    111   return reinterpret_cast<NPObject*>(newInstance);
    112 }
    113 
    114 static void testDeallocate(NPObject* obj) {
    115   TestObject* testObject = reinterpret_cast<TestObject*>(obj);
    116   if (testObject->testObject)
    117     browser->releaseobject(testObject->testObject);
    118 
    119   --g_test_object_count;
    120   free(obj);
    121 }
    122 
    123 static bool testHasMethod(NPObject*, NPIdentifier name) {
    124   for (unsigned i = 0; i < NUM_METHOD_IDENTIFIERS; i++) {
    125     if (testMethodIdentifiers[i] == name)
    126       return true;
    127   }
    128   return false;
    129 }
    130 
    131 static bool testInvoke(NPObject* header,
    132                        NPIdentifier name,
    133                        const NPVariant* /*args*/,
    134                        uint32_t /*argCount*/,
    135                        NPVariant* /*result*/) {
    136   if (name == testMethodIdentifiers[ID_THROW_EXCEPTION_METHOD]) {
    137     browser->setexception(header, "test object throwException SUCCESS");
    138     return true;
    139   }
    140   return false;
    141 }
    142 
    143 static bool testHasProperty(NPObject*, NPIdentifier name) {
    144   for (unsigned i = 0; i < NUM_TEST_IDENTIFIERS; i++) {
    145     if (testIdentifiers[i] == name)
    146       return true;
    147   }
    148 
    149   return false;
    150 }
    151 
    152 static bool testGetProperty(NPObject* npobj,
    153                             NPIdentifier name,
    154                             NPVariant* result) {
    155   if (name == testIdentifiers[ID_PROPERTY_FOO]) {
    156     char* mem = static_cast<char*>(browser->memalloc(4));
    157     strcpy(mem, "foo");
    158     STRINGZ_TO_NPVARIANT(mem, *result);
    159     return true;
    160   }
    161   if (name == testIdentifiers[ID_PROPERTY_BAR]) {
    162     char* mem = static_cast<char*>(browser->memalloc(4));
    163     strcpy(mem, "bar");
    164     STRINGZ_TO_NPVARIANT(mem, *result);
    165     return true;
    166   }
    167   if (name == testIdentifiers[ID_PROPERTY_OBJECT_POINTER]) {
    168     int32_t objectPointer =
    169         static_cast<int32_t>(reinterpret_cast<long long>(npobj));
    170 
    171     INT32_TO_NPVARIANT(objectPointer, *result);
    172     return true;
    173   }
    174   if (name == testIdentifiers[ID_PROPERTY_TEST_OBJECT]) {
    175     TestObject* testObject = reinterpret_cast<TestObject*>(npobj);
    176     if (!testObject->testObject)
    177       testObject->testObject = browser->createobject(0, &g_test_class);
    178     browser->retainobject(testObject->testObject);
    179     OBJECT_TO_NPVARIANT(testObject->testObject, *result);
    180     return true;
    181   }
    182   if (name == testIdentifiers[ID_PROPERTY_REF_COUNT]) {
    183     INT32_TO_NPVARIANT(npobj->referenceCount, *result);
    184     return true;
    185   }
    186 
    187   return false;
    188 }
    189 
    190 static bool testEnumerate(NPObject* /*npobj*/,
    191                           NPIdentifier** value,
    192                           uint32_t* count) {
    193   *count = NUM_ENUMERATABLE_TEST_IDENTIFIERS;
    194 
    195   *value = (NPIdentifier*)browser->memalloc(NUM_ENUMERATABLE_TEST_IDENTIFIERS *
    196                                             sizeof(NPIdentifier));
    197   memcpy(*value,
    198          testIdentifiers,
    199          sizeof(NPIdentifier) * NUM_ENUMERATABLE_TEST_IDENTIFIERS);
    200 
    201   return true;
    202 }
    203 
    204 static bool testConstruct(NPObject* npobj,
    205                           const NPVariant* /*args*/,
    206                           uint32_t /*argCount*/,
    207                           NPVariant* result) {
    208   browser->retainobject(npobj);
    209 
    210   // Just return the same object.
    211   OBJECT_TO_NPVARIANT(npobj, *result);
    212   return true;
    213 }
    214 
    215 namespace content {
    216 
    217 NPClass* GetTestClass() { return &g_test_class; }
    218 
    219 int GetTestObjectCount() { return g_test_object_count; }
    220 
    221 }  // namespace content
    222