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" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/pp_var.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/ppapi_globals.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/var_tracker.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ppapi { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Var ------------------------------------------------------------------------- 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Var::Var() : var_id_(0) { 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Var::~Var() { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)std::string Var::PPVarToLogString(PP_Var var) { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (var.type) { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_UNDEFINED: 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Undefined]"; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_NULL: 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Null]"; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_BOOL: 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var.value.as_bool ? "[True]" : "[False]"; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_INT32: 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::IntToString(var.value.as_int); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_DOUBLE: 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::DoubleToString(var.value.as_double); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_STRING: { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StringVar* string(StringVar::FromPPVar(var)); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!string) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Invalid string]"; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Since this is for logging, escape NULLs, truncate length. 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string result; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const size_t kTruncateAboveLength = 128; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (string->value().size() > kTruncateAboveLength) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result = string->value().substr(0, kTruncateAboveLength) + "..."; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result = string->value(); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string null; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) null.push_back(0); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReplaceSubstringsAfterOffset(&result, 0, null, "\\0"); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return result; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case PP_VARTYPE_OBJECT: 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Object]"; 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case PP_VARTYPE_ARRAY: 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return "[Array]"; 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case PP_VARTYPE_DICTIONARY: 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return "[Dictionary]"; 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case PP_VARTYPE_ARRAY_BUFFER: 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return "[Array buffer]"; 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "[Invalid var]"; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)StringVar* Var::AsStringVar() { 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ArrayBufferVar* Var::AsArrayBufferVar() { 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NPObjectVar* Var::AsNPObjectVar() { 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ProxyObjectVar* Var::AsProxyObjectVar() { 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)ArrayVar* Var::AsArrayVar() { 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)DictionaryVar* Var::AsDictionaryVar() { 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Var Var::GetPPVar() { 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32 id = GetOrCreateVarID(); 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!id) 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_MakeNull(); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_Var result; 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result.type = GetType(); 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result.padding = 0; 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result.value.as_id = id; 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return result; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32 Var::GetExistingVarID() const { 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var_id_; 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int32 Var::GetOrCreateVarID() { 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VarTracker* tracker = PpapiGlobals::Get()->GetVarTracker(); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (var_id_) { 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!tracker->AddRefVar(var_id_)) 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_id_ = tracker->AddVar(this); 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!var_id_) 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var_id_; 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Var::AssignVarID(int32 id) { 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!var_id_); // Must not have already been generated. 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_id_ = id; 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// StringVar ------------------------------------------------------------------- 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)StringVar::StringVar() { 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)StringVar::StringVar(const std::string& str) 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : value_(str) { 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)StringVar::StringVar(const char* str, uint32 len) 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : value_(str, len) { 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)StringVar::~StringVar() { 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)StringVar* StringVar::AsStringVar() { 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return this; 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_VarType StringVar::GetType() const { 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_VARTYPE_STRING; 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Var StringVar::StringToPPVar(const std::string& var) { 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return StringToPPVar(var.c_str(), static_cast<uint32>(var.size())); 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Var StringVar::StringToPPVar(const char* data, uint32 len) { 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<StringVar> str(new StringVar(data, len)); 160868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!str.get() || !IsStringUTF8(str->value())) 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_MakeNull(); 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return str->GetPPVar(); 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)StringVar* StringVar::FromPPVar(PP_Var var) { 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (var.type != PP_VARTYPE_STRING) 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<Var> var_object( 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PpapiGlobals::Get()->GetVarTracker()->GetVar(var)); 171868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!var_object.get()) 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var_object->AsStringVar(); 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Var StringVar::SwapValidatedUTF8StringIntoPPVar(std::string* src) { 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<StringVar> str(new StringVar); 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) str->value_.swap(*src); 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return str->GetPPVar(); 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ArrayBufferVar -------------------------------------------------------------- 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ArrayBufferVar::ArrayBufferVar() { 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ArrayBufferVar::~ArrayBufferVar() { 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ArrayBufferVar* ArrayBufferVar::AsArrayBufferVar() { 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return this; 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_VarType ArrayBufferVar::GetType() const { 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_VARTYPE_ARRAY_BUFFER; 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ArrayBufferVar* ArrayBufferVar::FromPPVar(PP_Var var) { 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (var.type != PP_VARTYPE_ARRAY_BUFFER) 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<Var> var_object( 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PpapiGlobals::Get()->GetVarTracker()->GetVar(var)); 205868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!var_object.get()) 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var_object->AsArrayBufferVar(); 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ppapi 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 212