15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/var.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <limits> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 107d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#include "base/strings/string_number_conversions.h" 117d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#include "base/strings/string_util.h" 12d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)#include "base/strings/stringprintf.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/pp_var.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/ppapi_globals.h" 15d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)#include "ppapi/shared_impl/resource_var.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/var_tracker.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ppapi { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Var ------------------------------------------------------------------------- 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)std::string Var::PPVarToLogString(PP_Var var) { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (var.type) { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_UNDEFINED: 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Undefined]"; 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_NULL: 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Null]"; 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_BOOL: 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var.value.as_bool ? "[True]" : "[False]"; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_INT32: 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::IntToString(var.value.as_int); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_DOUBLE: 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::DoubleToString(var.value.as_double); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_STRING: { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StringVar* string(StringVar::FromPPVar(var)); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!string) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Invalid string]"; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Since this is for logging, escape NULLs, truncate length. 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string result; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const size_t kTruncateAboveLength = 128; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (string->value().size() > kTruncateAboveLength) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result = string->value().substr(0, kTruncateAboveLength) + "..."; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result = string->value(); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string null; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) null.push_back(0); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReplaceSubstringsAfterOffset(&result, 0, null, "\\0"); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return result; 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_OBJECT: 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Object]"; 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case PP_VARTYPE_ARRAY: 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return "[Array]"; 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case PP_VARTYPE_DICTIONARY: 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return "[Dictionary]"; 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case PP_VARTYPE_ARRAY_BUFFER: 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return "[Array buffer]"; 61d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) case PP_VARTYPE_RESOURCE: { 62d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) ResourceVar* resource(ResourceVar::FromPPVar(var)); 63d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) if (!resource) 64d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) return "[Invalid resource]"; 65d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) 66d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) if (resource->IsPending()) { 67d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) return base::StringPrintf("[Pending resource]"); 6868043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) } else if (resource->GetPPResource()) { 6968043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) return base::StringPrintf("[Resource %d]", resource->GetPPResource()); 70d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) } else { 71d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) return "[Null resource]"; 72d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) } 73d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) } 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Invalid var]"; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 79a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)StringVar* Var::AsStringVar() { return NULL; } 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 81a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ArrayBufferVar* Var::AsArrayBufferVar() { return NULL; } 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 836e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles)V8ObjectVar* Var::AsV8ObjectVar() { return NULL; } 846e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) 85a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ProxyObjectVar* Var::AsProxyObjectVar() { return NULL; } 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 87a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ArrayVar* Var::AsArrayVar() { return NULL; } 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 89a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)DictionaryVar* Var::AsDictionaryVar() { return NULL; } 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 91a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ResourceVar* Var::AsResourceVar() { return NULL; } 9258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Var Var::GetPPVar() { 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32 id = GetOrCreateVarID(); 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!id) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_MakeNull(); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_Var result; 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result.type = GetType(); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result.padding = 0; 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result.value.as_id = id; 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return result; 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)int32 Var::GetExistingVarID() const { return var_id_; } 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 107a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)Var::Var() : var_id_(0) {} 1084e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 109a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)Var::~Var() {} 1104e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32 Var::GetOrCreateVarID() { 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VarTracker* tracker = PpapiGlobals::Get()->GetVarTracker(); 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (var_id_) { 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!tracker->AddRefVar(var_id_)) 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_id_ = tracker->AddVar(this); 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!var_id_) 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var_id_; 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Var::AssignVarID(int32 id) { 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!var_id_); // Must not have already been generated. 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_id_ = id; 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// StringVar ------------------------------------------------------------------- 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 131a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)StringVar::StringVar() {} 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 133a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)StringVar::StringVar(const std::string& str) : value_(str) {} 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)StringVar::StringVar(const char* str, uint32 len) : value_(str, len) {} 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 137a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)StringVar::~StringVar() {} 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 139a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)StringVar* StringVar::AsStringVar() { return this; } 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 141a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)PP_VarType StringVar::GetType() const { return PP_VARTYPE_STRING; } 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Var StringVar::StringToPPVar(const std::string& var) { 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return StringToPPVar(var.c_str(), static_cast<uint32>(var.size())); 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Var StringVar::StringToPPVar(const char* data, uint32 len) { 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<StringVar> str(new StringVar(data, len)); 151010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) if (!str.get() || !base::IsStringUTF8(str->value())) 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_MakeNull(); 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return str->GetPPVar(); 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)StringVar* StringVar::FromPPVar(PP_Var var) { 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (var.type != PP_VARTYPE_STRING) 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<Var> var_object( 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PpapiGlobals::Get()->GetVarTracker()->GetVar(var)); 162868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!var_object.get()) 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var_object->AsStringVar(); 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Var StringVar::SwapValidatedUTF8StringIntoPPVar(std::string* src) { 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<StringVar> str(new StringVar); 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) str->value_.swap(*src); 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return str->GetPPVar(); 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ArrayBufferVar -------------------------------------------------------------- 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 176a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ArrayBufferVar::ArrayBufferVar() {} 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 178a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ArrayBufferVar::~ArrayBufferVar() {} 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 180a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ArrayBufferVar* ArrayBufferVar::AsArrayBufferVar() { return this; } 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 182a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)PP_VarType ArrayBufferVar::GetType() const { return PP_VARTYPE_ARRAY_BUFFER; } 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ArrayBufferVar* ArrayBufferVar::FromPPVar(PP_Var var) { 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (var.type != PP_VARTYPE_ARRAY_BUFFER) 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<Var> var_object( 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PpapiGlobals::Get()->GetVarTracker()->GetVar(var)); 190868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!var_object.get()) 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var_object->AsArrayBufferVar(); 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ppapi 196