Home | History | Annotate | Download | only in child 
      1 // Copyright 2013 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 #include "content/child/plugin_param_traits.h"
      6 
      7 #include "base/strings/string_number_conversions.h"
      8 #include "ipc/ipc_message_utils.h"
      9 #include "third_party/WebKit/public/web/WebBindings.h"
     10 
     11 namespace content {
     12 
     13 NPIdentifier_Param::NPIdentifier_Param()
     14     : identifier() {
     15 }
     16 
     17 NPIdentifier_Param::~NPIdentifier_Param() {
     18 }
     19 
     20 NPVariant_Param::NPVariant_Param()
     21     : type(NPVARIANT_PARAM_VOID),
     22       bool_value(false),
     23       int_value(0),
     24       double_value(0),
     25       npobject_routing_id(-1),
     26       npobject_owner_id(-1) {
     27 }
     28 
     29 NPVariant_Param::~NPVariant_Param() {
     30 }
     31 
     32 }  // namespace content
     33 
     34 using content::NPIdentifier_Param;
     35 using content::NPVariant_Param;
     36 
     37 namespace IPC {
     38 
     39 void ParamTraits<NPVariant_Param>::Write(Message* m, const param_type& p) {
     40   WriteParam(m, static_cast<int>(p.type));
     41   if (p.type == content::NPVARIANT_PARAM_BOOL) {
     42     WriteParam(m, p.bool_value);
     43   } else if (p.type == content::NPVARIANT_PARAM_INT) {
     44     WriteParam(m, p.int_value);
     45   } else if (p.type == content::NPVARIANT_PARAM_DOUBLE) {
     46     WriteParam(m, p.double_value);
     47   } else if (p.type == content::NPVARIANT_PARAM_STRING) {
     48     WriteParam(m, p.string_value);
     49   } else if (p.type == content::NPVARIANT_PARAM_SENDER_OBJECT_ROUTING_ID ||
     50              p.type == content::NPVARIANT_PARAM_RECEIVER_OBJECT_ROUTING_ID) {
     51     // This is the routing id used to connect NPObjectProxy in the other
     52     // process with NPObjectStub in this process or to identify the raw
     53     // npobject pointer to be used in the callee process.
     54     WriteParam(m, p.npobject_routing_id);
     55     // This is a routing Id used to identify the plugin instance that owns
     56     // the object, for ownership-tracking purposes.
     57     WriteParam(m, p.npobject_owner_id);
     58   } else {
     59     DCHECK(p.type == content::NPVARIANT_PARAM_VOID ||
     60            p.type == content::NPVARIANT_PARAM_NULL);
     61   }
     62 }
     63 
     64 bool ParamTraits<NPVariant_Param>::Read(const Message* m,
     65                                         PickleIterator* iter,
     66                                         param_type* r) {
     67   int type;
     68   if (!ReadParam(m, iter, &type))
     69     return false;
     70 
     71   bool result = false;
     72   r->type = static_cast<content::NPVariant_ParamEnum>(type);
     73   if (r->type == content::NPVARIANT_PARAM_BOOL) {
     74     result = ReadParam(m, iter, &r->bool_value);
     75   } else if (r->type == content::NPVARIANT_PARAM_INT) {
     76     result = ReadParam(m, iter, &r->int_value);
     77   } else if (r->type == content::NPVARIANT_PARAM_DOUBLE) {
     78     result = ReadParam(m, iter, &r->double_value);
     79   } else if (r->type == content::NPVARIANT_PARAM_STRING) {
     80     result = ReadParam(m, iter, &r->string_value);
     81   } else if (r->type == content::NPVARIANT_PARAM_SENDER_OBJECT_ROUTING_ID ||
     82              r->type == content::NPVARIANT_PARAM_RECEIVER_OBJECT_ROUTING_ID) {
     83     result = ReadParam(m, iter, &r->npobject_routing_id) &&
     84         ReadParam(m, iter, &r->npobject_owner_id);
     85   } else if ((r->type == content::NPVARIANT_PARAM_VOID) ||
     86              (r->type == content::NPVARIANT_PARAM_NULL)) {
     87     result = true;
     88   } else {
     89     NOTREACHED();
     90   }
     91 
     92   return result;
     93 }
     94 
     95 void ParamTraits<NPVariant_Param>::Log(const param_type& p, std::string* l) {
     96   l->append(
     97       base::StringPrintf("NPVariant_Param(%d, ", static_cast<int>(p.type)));
     98   if (p.type == content::NPVARIANT_PARAM_BOOL) {
     99     LogParam(p.bool_value, l);
    100   } else if (p.type == content::NPVARIANT_PARAM_INT) {
    101     LogParam(p.int_value, l);
    102   } else if (p.type == content::NPVARIANT_PARAM_DOUBLE) {
    103     LogParam(p.double_value, l);
    104   } else if (p.type == content::NPVARIANT_PARAM_STRING) {
    105     LogParam(p.string_value, l);
    106   } else if (p.type == content::NPVARIANT_PARAM_SENDER_OBJECT_ROUTING_ID ||
    107              p.type == content::NPVARIANT_PARAM_RECEIVER_OBJECT_ROUTING_ID) {
    108     LogParam(p.npobject_routing_id, l);
    109   } else {
    110     l->append("<none>");
    111   }
    112   l->append(")");
    113 }
    114 
    115 void ParamTraits<NPIdentifier_Param>::Write(Message* m, const param_type& p) {
    116   content::SerializeNPIdentifier(p.identifier, m);
    117 }
    118 
    119 bool ParamTraits<NPIdentifier_Param>::Read(const Message* m,
    120                                            PickleIterator* iter,
    121                                            param_type* r) {
    122   return content::DeserializeNPIdentifier(iter, &r->identifier);
    123 }
    124 
    125 void ParamTraits<NPIdentifier_Param>::Log(const param_type& p, std::string* l) {
    126   if (blink::WebBindings::identifierIsString(p.identifier)) {
    127     NPUTF8* str = blink::WebBindings::utf8FromIdentifier(p.identifier);
    128     l->append(str);
    129     free(str);
    130   } else {
    131     l->append(base::IntToString(
    132         blink::WebBindings::intFromIdentifier(p.identifier)));
    133   }
    134 }
    135 
    136 }  // namespace IPC
    137