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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/common/extensions/api/sockets/sockets_handler.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/common/extensions/api/manifest_types.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/permissions/permissions_data.h"
#include "chrome/common/extensions/permissions/socket_permission_data.h"
#include "extensions/common/error_utils.h"
#include "extensions/common/manifest_constants.h"
#include "extensions/common/permissions/api_permission_set.h"
namespace extensions {
namespace sockets_errors {
const char kErrorInvalidHostPattern[] = "Invalid host:port pattern '*'";
}
namespace keys = extensions::manifest_keys;
namespace errors = sockets_errors;
using api::manifest_types::Sockets;
SocketsHandler::SocketsHandler() {}
SocketsHandler::~SocketsHandler() {}
bool SocketsHandler::Parse(Extension* extension, string16* error) {
const base::Value* sockets = NULL;
CHECK(extension->manifest()->Get(keys::kSockets, &sockets));
std::vector<InstallWarning> install_warnings;
scoped_ptr<SocketsManifestData> data =
SocketsManifestData::FromValue(*sockets,
&install_warnings,
error);
if (!data)
return false;
extension->AddInstallWarnings(install_warnings);
extension->SetManifestData(keys::kSockets, data.release());
return true;
}
const std::vector<std::string> SocketsHandler::Keys() const {
return SingleKey(manifest_keys::kSockets);
}
SocketsManifestData::SocketsManifestData() {}
SocketsManifestData::~SocketsManifestData() {}
// static
SocketsManifestData* SocketsManifestData::Get(const Extension* extension) {
return static_cast<SocketsManifestData*>(
extension->GetManifestData(keys::kSockets));
}
// static
bool SocketsManifestData::CheckRequest(
const Extension* extension,
const content::SocketPermissionRequest& request) {
SocketsManifestData* data = SocketsManifestData::Get(extension);
if (data == NULL)
return false;
return data->CheckRequestImpl(extension, request);
}
// static
scoped_ptr<SocketsManifestData> SocketsManifestData::FromValue(
const base::Value& value,
std::vector<InstallWarning>* install_warnings,
string16* error) {
scoped_ptr<Sockets> sockets = Sockets::FromValue(value, error);
if (!sockets)
return scoped_ptr<SocketsManifestData>();
scoped_ptr<SocketsManifestData> result(new SocketsManifestData());
if (sockets->udp) {
if (!ParseHostPattern(result.get(),
content::SocketPermissionRequest::UDP_BIND,
sockets->udp->bind,
error)) {
return scoped_ptr<SocketsManifestData>();
}
if (!ParseHostPattern(result.get(),
content::SocketPermissionRequest::UDP_SEND_TO,
sockets->udp->send,
error)) {
return scoped_ptr<SocketsManifestData>();
}
if (!ParseHostPattern(result.get(),
content::SocketPermissionRequest::UDP_MULTICAST_MEMBERSHIP,
sockets->udp->multicast_membership,
error)) {
return scoped_ptr<SocketsManifestData>();
}
}
if (sockets->tcp) {
if (!ParseHostPattern(result.get(),
content::SocketPermissionRequest::TCP_CONNECT,
sockets->tcp->connect,
error)) {
return scoped_ptr<SocketsManifestData>();
}
}
return result.Pass();
}
// static
bool SocketsManifestData::ParseHostPattern(
SocketsManifestData* manifest_data,
content::SocketPermissionRequest::OperationType operation_type,
const scoped_ptr<std::string>& value,
string16* error) {
if (value) {
SocketPermissionEntry entry;
if (!SocketPermissionEntry::ParseHostPattern(
operation_type, *value, &entry)) {
*error = ErrorUtils::FormatErrorMessageUTF16(
errors::kErrorInvalidHostPattern, *value);
return false;
}
manifest_data->AddPermission(entry);
}
return true;
}
void SocketsManifestData::AddPermission(const SocketPermissionEntry& entry) {
permissions_.insert(entry);
}
bool SocketsManifestData::CheckRequestImpl(
const Extension* extension,
const content::SocketPermissionRequest& request) {
for (PermissionSet::const_iterator it = permissions_.begin();
it != permissions_.end(); ++it) {
if (it->Check(request))
return true;
}
return false;
}
} // namespace extensions
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