extensions/common/extension_messages.cc

   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 #include "extensions/common/extension_messages.h"
   6
   7 #include "content/public/common/common_param_traits.h"
   8 #include "extensions/common/extension.h"
   9 #include "extensions/common/manifest.h"
  10 #include "extensions/common/manifest_handler.h"
  11 #include "extensions/common/permissions/permissions_data.h"
  12 #include "extensions/common/permissions/permissions_info.h"
  13
  14 using extensions::APIPermission;
  15 using extensions::APIPermissionInfo;
  16 using extensions::APIPermissionSet;
  17 using extensions::Extension;
  18 using extensions::Manifest;
  19 using extensions::ManifestHandler;
  20 using extensions::ManifestPermission;
  21 using extensions::ManifestPermissionSet;
  22 using extensions::PermissionSet;
  23 using extensions::URLPatternSet;
  24
  25 ExtensionMsg_PermissionSetStruct::ExtensionMsg_PermissionSetStruct() {
  26 }
  27
  28 ExtensionMsg_PermissionSetStruct::ExtensionMsg_PermissionSetStruct(
  29     const PermissionSet& permissions)
  30     : apis(permissions.apis()),
  31       manifest_permissions(permissions.manifest_permissions()),
  32       explicit_hosts(permissions.explicit_hosts()),
  33       scriptable_hosts(permissions.scriptable_hosts()) {
  34 }
  35
  36 ExtensionMsg_PermissionSetStruct::~ExtensionMsg_PermissionSetStruct() {
  37 }
  38
  39 scoped_refptr<const PermissionSet>
  40 ExtensionMsg_PermissionSetStruct::ToPermissionSet() const {
  41   return new PermissionSet(
  42       apis, manifest_permissions, explicit_hosts, scriptable_hosts);
  43 }
  44
  45 ExtensionMsg_Loaded_Params::ExtensionMsg_Loaded_Params()
  46     : location(Manifest::INVALID_LOCATION),
  47       creation_flags(Extension::NO_FLAGS) {}
  48
  49 ExtensionMsg_Loaded_Params::~ExtensionMsg_Loaded_Params() {}
  50
  51 ExtensionMsg_Loaded_Params::ExtensionMsg_Loaded_Params(
  52     const Extension* extension,
  53     bool include_tab_permissions)
  54     : manifest(extension->manifest()->value()->DeepCopy()),
  55       location(extension->location()),
  56       path(extension->path()),
  57       active_permissions(*extension->permissions_data()->active_permissions()),
  58       withheld_permissions(
  59           *extension->permissions_data()->withheld_permissions()),
  60       id(extension->id()),
  61       creation_flags(extension->creation_flags()) {
  62   if (include_tab_permissions) {
  63     extensions::PermissionsData::TabPermissionsMap tab_permissions =
  64         extension->permissions_data()->CopyTabSpecificPermissionsMap();
  65     for (const auto& pair : tab_permissions) {
  66       tab_specific_permissions[pair.first] =
  67           ExtensionMsg_PermissionSetStruct(*pair.second);
  68     }
  69   }
  70 }
  71
  72 scoped_refptr<Extension> ExtensionMsg_Loaded_Params::ConvertToExtension(
  73     std::string* error) const {
  74   scoped_refptr<Extension> extension =
  75       Extension::Create(path, location, *manifest, creation_flags, error);
  76   if (extension.get()) {
  77     const extensions::PermissionsData* permissions_data =
  78         extension->permissions_data();
  79     permissions_data->SetPermissions(active_permissions.ToPermissionSet(),
  80                                      withheld_permissions.ToPermissionSet());
  81     for (const auto& pair : tab_specific_permissions) {
  82       permissions_data->UpdateTabSpecificPermissions(
  83           pair.first, pair.second.ToPermissionSet());
  84     }
  85   }
  86   return extension;
  87 }
  88
  89 namespace IPC {
  90
  91 template <>
  92 struct ParamTraits<Manifest::Location> {
  93   typedef Manifest::Location param_type;
  94   static void Write(Message* m, const param_type& p) {
  95     int val = static_cast<int>(p);
  96     WriteParam(m, val);
  97   }
  98   static bool Read(const Message* m, PickleIterator* iter, param_type* p) {
  99     int val = 0;
 100     if (!ReadParam(m, iter, &val) ||
 101         val < Manifest::INVALID_LOCATION ||
 102         val >= Manifest::NUM_LOCATIONS)
 103       return false;
 104     *p = static_cast<param_type>(val);
 105     return true;
 106   }
 107   static void Log(const param_type& p, std::string* l) {
 108     ParamTraits<int>::Log(static_cast<int>(p), l);
 109   }
 110 };
 111
 112 void ParamTraits<URLPattern>::Write(Message* m, const param_type& p) {
 113   WriteParam(m, p.valid_schemes());
 114   WriteParam(m, p.GetAsString());
 115 }
 116
 117 bool ParamTraits<URLPattern>::Read(const Message* m, PickleIterator* iter,
 118                                    param_type* p) {
 119   int valid_schemes;
 120   std::string spec;
 121   if (!ReadParam(m, iter, &valid_schemes) ||
 122       !ReadParam(m, iter, &spec))
 123     return false;
 124
 125   // TODO(jstritar): We don't want the URLPattern to fail parsing when the
 126   // scheme is invalid. Instead, the pattern should parse but it should not
 127   // match the invalid patterns. We get around this by setting the valid
 128   // schemes after parsing the pattern. Update these method calls once we can
 129   // ignore scheme validation with URLPattern parse options. crbug.com/90544
 130   p->SetValidSchemes(URLPattern::SCHEME_ALL);
 131   URLPattern::ParseResult result = p->Parse(spec);
 132   p->SetValidSchemes(valid_schemes);
 133   return URLPattern::PARSE_SUCCESS == result;
 134 }
 135
 136 void ParamTraits<URLPattern>::Log(const param_type& p, std::string* l) {
 137   LogParam(p.GetAsString(), l);
 138 }
 139
 140 void ParamTraits<URLPatternSet>::Write(Message* m, const param_type& p) {
 141   WriteParam(m, p.patterns());
 142 }
 143
 144 bool ParamTraits<URLPatternSet>::Read(const Message* m, PickleIterator* iter,
 145                                         param_type* p) {
 146   std::set<URLPattern> patterns;
 147   if (!ReadParam(m, iter, &patterns))
 148     return false;
 149
 150   for (std::set<URLPattern>::iterator i = patterns.begin();
 151        i != patterns.end(); ++i)
 152     p->AddPattern(*i);
 153   return true;
 154 }
 155
 156 void ParamTraits<URLPatternSet>::Log(const param_type& p, std::string* l) {
 157   LogParam(p.patterns(), l);
 158 }
 159
 160 void ParamTraits<APIPermission::ID>::Write(
 161     Message* m, const param_type& p) {
 162   WriteParam(m, static_cast<int>(p));
 163 }
 164
 165 bool ParamTraits<APIPermission::ID>::Read(
 166     const Message* m, PickleIterator* iter, param_type* p) {
 167   int api_id = -2;
 168   if (!ReadParam(m, iter, &api_id))
 169     return false;
 170
 171   *p = static_cast<APIPermission::ID>(api_id);
 172   return true;
 173 }
 174
 175 void ParamTraits<APIPermission::ID>::Log(
 176     const param_type& p, std::string* l) {
 177   LogParam(static_cast<int>(p), l);
 178 }
 179
 180 void ParamTraits<APIPermissionSet>::Write(
 181     Message* m, const param_type& p) {
 182   APIPermissionSet::const_iterator it = p.begin();
 183   const APIPermissionSet::const_iterator end = p.end();
 184   WriteParam(m, p.size());
 185   for (; it != end; ++it) {
 186     WriteParam(m, it->id());
 187     it->Write(m);
 188   }
 189 }
 190
 191 bool ParamTraits<APIPermissionSet>::Read(
 192     const Message* m, PickleIterator* iter, param_type* r) {
 193   size_t size;
 194   if (!ReadParam(m, iter, &size))
 195     return false;
 196   for (size_t i = 0; i < size; ++i) {
 197     APIPermission::ID id;
 198     if (!ReadParam(m, iter, &id))
 199       return false;
 200     const APIPermissionInfo* permission_info =
 201       extensions::PermissionsInfo::GetInstance()->GetByID(id);
 202     if (!permission_info)
 203       return false;
 204     scoped_ptr<APIPermission> p(permission_info->CreateAPIPermission());
 205     if (!p->Read(m, iter))
 206       return false;
 207     r->insert(p.release());
 208   }
 209   return true;
 210 }
 211
 212 void ParamTraits<APIPermissionSet>::Log(
 213     const param_type& p, std::string* l) {
 214   LogParam(p.map(), l);
 215 }
 216
 217 void ParamTraits<ManifestPermissionSet>::Write(
 218     Message* m, const param_type& p) {
 219   ManifestPermissionSet::const_iterator it = p.begin();
 220   const ManifestPermissionSet::const_iterator end = p.end();
 221   WriteParam(m, p.size());
 222   for (; it != end; ++it) {
 223     WriteParam(m, it->name());
 224     it->Write(m);
 225   }
 226 }
 227
 228 bool ParamTraits<ManifestPermissionSet>::Read(
 229     const Message* m, PickleIterator* iter, param_type* r) {
 230   size_t size;
 231   if (!ReadParam(m, iter, &size))
 232     return false;
 233   for (size_t i = 0; i < size; ++i) {
 234     std::string name;
 235     if (!ReadParam(m, iter, &name))
 236       return false;
 237     scoped_ptr<ManifestPermission> p(ManifestHandler::CreatePermission(name));
 238     if (!p)
 239       return false;
 240     if (!p->Read(m, iter))
 241       return false;
 242     r->insert(p.release());
 243   }
 244   return true;
 245 }
 246
 247 void ParamTraits<ManifestPermissionSet>::Log(
 248     const param_type& p, std::string* l) {
 249   LogParam(p.map(), l);
 250 }
 251
 252 void ParamTraits<HostID>::Write(
 253     Message* m, const param_type& p) {
 254   WriteParam(m, p.type());
 255   WriteParam(m, p.id());
 256 }
 257
 258 bool ParamTraits<HostID>::Read(
 259     const Message* m, PickleIterator* iter, param_type* r) {
 260   HostID::HostType type;
 261   std::string id;
 262   if (!ReadParam(m, iter, &type))
 263     return false;
 264   if (!ReadParam(m, iter, &id))
 265     return false;
 266   *r = HostID(type, id);
 267   return true;
 268 }
 269
 270 void ParamTraits<HostID>::Log(
 271     const param_type& p, std::string* l) {
 272   LogParam(p.type(), l);
 273   LogParam(p.id(), l);
 274 }
 275
 276 void ParamTraits<ExtensionMsg_PermissionSetStruct>::Write(Message* m,
 277                                                           const param_type& p) {
 278   WriteParam(m, p.apis);
 279   WriteParam(m, p.manifest_permissions);
 280   WriteParam(m, p.explicit_hosts);
 281   WriteParam(m, p.scriptable_hosts);
 282 }
 283
 284 bool ParamTraits<ExtensionMsg_PermissionSetStruct>::Read(const Message* m,
 285                                                          PickleIterator* iter,
 286                                                          param_type* p) {
 287   return ReadParam(m, iter, &p->apis) &&
 288          ReadParam(m, iter, &p->manifest_permissions) &&
 289          ReadParam(m, iter, &p->explicit_hosts) &&
 290          ReadParam(m, iter, &p->scriptable_hosts);
 291 }
 292
 293 void ParamTraits<ExtensionMsg_PermissionSetStruct>::Log(const param_type& p,
 294                                                         std::string* l) {
 295   LogParam(p.apis, l);
 296   LogParam(p.manifest_permissions, l);
 297   LogParam(p.explicit_hosts, l);
 298   LogParam(p.scriptable_hosts, l);
 299 }
 300
 301 void ParamTraits<ExtensionMsg_Loaded_Params>::Write(Message* m,
 302                                                     const param_type& p) {
 303   WriteParam(m, p.location);
 304   WriteParam(m, p.path);
 305   WriteParam(m, *(p.manifest));
 306   WriteParam(m, p.creation_flags);
 307   WriteParam(m, p.active_permissions);
 308   WriteParam(m, p.withheld_permissions);
 309 }
 310
 311 bool ParamTraits<ExtensionMsg_Loaded_Params>::Read(const Message* m,
 312                                                    PickleIterator* iter,
 313                                                    param_type* p) {
 314   p->manifest.reset(new base::DictionaryValue());
 315   return ReadParam(m, iter, &p->location) && ReadParam(m, iter, &p->path) &&
 316          ReadParam(m, iter, p->manifest.get()) &&
 317          ReadParam(m, iter, &p->creation_flags) &&
 318          ReadParam(m, iter, &p->active_permissions) &&
 319          ReadParam(m, iter, &p->withheld_permissions);
 320 }
 321
 322 void ParamTraits<ExtensionMsg_Loaded_Params>::Log(const param_type& p,
 323                                                   std::string* l) {
 324   l->append(p.id);
 325 }
 326
 327 }  // namespace IPC