// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/proxy/url_request_info_resource.h"
#include "base/strings/string_number_conversions.h"
#include "ppapi/shared_impl/var.h"
#include "ppapi/thunk/enter.h"
#include "ppapi/thunk/ppb_file_ref_api.h"
namespace ppapi {
namespace proxy {
URLRequestInfoResource::URLRequestInfoResource(Connection connection,
PP_Instance instance,
const URLRequestInfoData& data)
: PluginResource(connection, instance),
data_(data) {
}
URLRequestInfoResource::~URLRequestInfoResource() {
}
thunk::PPB_URLRequestInfo_API*
URLRequestInfoResource::AsPPB_URLRequestInfo_API() {
return this;
}
PP_Bool URLRequestInfoResource::SetProperty(PP_URLRequestProperty property,
PP_Var var) {
// IMPORTANT: Do not do security validation of parameters at this level
// without also adding them to PPB_URLRequestInfo_Impl::ValidateData. This
// code is used both in the plugin (which we don't trust) and in the renderer
// (which we trust more). When running out-of-process, the plugin calls this
// function to configure the URLRequestInfoData, which is then sent to
// the renderer and *not* run through SetProperty again.
//
// This means that anything in the PPB_URLRequestInfo_Data needs to be
// validated at the time the URL is requested (which is what ValidateData
// does). If your feature requires security checks, it should be in the
// implementation in the renderer when the WebKit request is actually
// constructed.
//
// It is legal to do some validation here if you want to report failure to
// the plugin as a convenience, as long as you also do it in the renderer
// later.
PP_Bool result = PP_FALSE;
switch (var.type) {
case PP_VARTYPE_UNDEFINED:
result = PP_FromBool(SetUndefinedProperty(property));
break;
case PP_VARTYPE_BOOL:
result = PP_FromBool(
SetBooleanProperty(property, PP_ToBool(var.value.as_bool)));
break;
case PP_VARTYPE_INT32:
result = PP_FromBool(
SetIntegerProperty(property, var.value.as_int));
break;
case PP_VARTYPE_STRING: {
StringVar* string = StringVar::FromPPVar(var);
if (string)
result = PP_FromBool(SetStringProperty(property, string->value()));
break;
}
default:
break;
}
if (!result) {
std::string error_msg("PPB_URLRequestInfo.SetProperty: Attempted to set a "
"value for PP_URLRequestProperty ");
error_msg += base::NumberToString(property);
error_msg += ", but either this property type is invalid or its parameter "
"was inappropriate (e.g., the wrong type of PP_Var).";
Log(PP_LOGLEVEL_ERROR, error_msg);
}
return result;
}
PP_Bool URLRequestInfoResource::AppendDataToBody(const void* data,
uint32_t len) {
if (len > 0) {
data_.body.push_back(URLRequestInfoData::BodyItem(
std::string(static_cast<const char*>(data), len)));
}
return PP_TRUE;
}
PP_Bool URLRequestInfoResource::AppendFileToBody(
PP_Resource file_ref,
int64_t start_offset,
int64_t number_of_bytes,
PP_Time expected_last_modified_time) {
thunk::EnterResourceNoLock<thunk::PPB_FileRef_API> enter(file_ref, true);
if (enter.failed())
return PP_FALSE;
// Ignore a call to append nothing.
if (number_of_bytes == 0)
return PP_TRUE;
// Check for bad values. (-1 means read until end of file.)
if (start_offset < 0 || number_of_bytes < -1)
return PP_FALSE;
data_.body.push_back(URLRequestInfoData::BodyItem(
enter.resource(),
start_offset,
number_of_bytes,
expected_last_modified_time));
return PP_TRUE;
}
const URLRequestInfoData& URLRequestInfoResource::GetData() const {
return data_;
}
bool URLRequestInfoResource::SetUndefinedProperty(
PP_URLRequestProperty property) {
// IMPORTANT: Do not do security validation of parameters at this level
// without also adding them to PPB_URLRequestInfo_Impl::ValidateData. See
// SetProperty() above for why.
switch (property) {
case PP_URLREQUESTPROPERTY_CUSTOMREFERRERURL:
data_.has_custom_referrer_url = false;
data_.custom_referrer_url = std::string();
return true;
case PP_URLREQUESTPROPERTY_CUSTOMCONTENTTRANSFERENCODING:
data_.has_custom_content_transfer_encoding = false;
data_.custom_content_transfer_encoding = std::string();
return true;
case PP_URLREQUESTPROPERTY_CUSTOMUSERAGENT:
data_.has_custom_user_agent = false;
data_.custom_user_agent = std::string();
return true;
default:
return false;
}
}
bool URLRequestInfoResource::SetBooleanProperty(
PP_URLRequestProperty property,
bool value) {
// IMPORTANT: Do not do security validation of parameters at this level
// without also adding them to PPB_URLRequestInfo_Impl::ValidateData. See
// SetProperty() above for why.
switch (property) {
case PP_URLREQUESTPROPERTY_FOLLOWREDIRECTS:
data_.follow_redirects = value;
return true;
case PP_URLREQUESTPROPERTY_RECORDDOWNLOADPROGRESS:
data_.record_download_progress = value;
return true;
case PP_URLREQUESTPROPERTY_RECORDUPLOADPROGRESS:
data_.record_upload_progress = value;
return true;
case PP_URLREQUESTPROPERTY_ALLOWCROSSORIGINREQUESTS:
data_.allow_cross_origin_requests = value;
return true;
case PP_URLREQUESTPROPERTY_ALLOWCREDENTIALS:
data_.allow_credentials = value;
return true;
default:
return false;
}
}
bool URLRequestInfoResource::SetIntegerProperty(
PP_URLRequestProperty property,
int32_t value) {
// IMPORTANT: Do not do security validation of parameters at this level
// without also adding them to PPB_URLRequestInfo_Impl::ValidateData. See
// SetProperty() above for why.
switch (property) {
case PP_URLREQUESTPROPERTY_PREFETCHBUFFERUPPERTHRESHOLD:
data_.prefetch_buffer_upper_threshold = value;
return true;
case PP_URLREQUESTPROPERTY_PREFETCHBUFFERLOWERTHRESHOLD:
data_.prefetch_buffer_lower_threshold = value;
return true;
default:
return false;
}
}
bool URLRequestInfoResource::SetStringProperty(
PP_URLRequestProperty property,
const std::string& value) {
// IMPORTANT: Do not do security validation of parameters at this level
// without also adding them to PPB_URLRequestInfo_Impl::ValidateData. See
// SetProperty() above for why.
switch (property) {
case PP_URLREQUESTPROPERTY_URL:
data_.url = value; // NOTE: This may be a relative URL.
return true;
case PP_URLREQUESTPROPERTY_METHOD:
data_.method = value;
return true;
case PP_URLREQUESTPROPERTY_HEADERS:
data_.headers = value;
return true;
case PP_URLREQUESTPROPERTY_CUSTOMREFERRERURL:
data_.has_custom_referrer_url = true;
data_.custom_referrer_url = value;
return true;
case PP_URLREQUESTPROPERTY_CUSTOMCONTENTTRANSFERENCODING:
data_.has_custom_content_transfer_encoding = true;
data_.custom_content_transfer_encoding = value;
return true;
case PP_URLREQUESTPROPERTY_CUSTOMUSERAGENT:
data_.has_custom_user_agent = true;
data_.custom_user_agent = value;
return true;
default:
return false;
}
}
} // namespace proxy
} // namespace ppapi
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