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// Copyright (c) 2012 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/browser/extensions/api/web_request/upload_data_presenter.h"
#include "base/files/file_path.h"
#include "base/strings/string_util.h"
#include "base/values.h"
#include "chrome/browser/extensions/api/web_request/form_data_parser.h"
#include "chrome/browser/extensions/api/web_request/web_request_api_constants.h"
#include "net/base/upload_bytes_element_reader.h"
#include "net/base/upload_file_element_reader.h"
#include "net/url_request/url_request.h"
using base::BinaryValue;
using base::DictionaryValue;
using base::ListValue;
using base::StringValue;
using base::Value;
namespace keys = extension_web_request_api_constants;
namespace {
// Takes |dictionary| of <string, list of strings> pairs, and gets the list
// for |key|, creating it if necessary.
base::ListValue* GetOrCreateList(base::DictionaryValue* dictionary,
const std::string& key) {
base::ListValue* list = NULL;
if (!dictionary->GetList(key, &list)) {
list = new base::ListValue();
dictionary->SetWithoutPathExpansion(key, list);
}
return list;
}
} // namespace
namespace extensions {
namespace subtle {
void AppendKeyValuePair(const char* key,
base::Value* value,
base::ListValue* list) {
base::DictionaryValue* dictionary = new base::DictionaryValue;
dictionary->SetWithoutPathExpansion(key, value);
list->Append(dictionary);
}
} // namespace subtle
// Implementation of UploadDataPresenter.
UploadDataPresenter::~UploadDataPresenter() {}
// Implementation of RawDataPresenter.
RawDataPresenter::RawDataPresenter()
: success_(true),
list_(new base::ListValue) {
}
RawDataPresenter::~RawDataPresenter() {}
void RawDataPresenter::FeedNext(const net::UploadElementReader& reader) {
if (!success_)
return;
if (reader.AsBytesReader()) {
const net::UploadBytesElementReader* bytes_reader = reader.AsBytesReader();
FeedNextBytes(bytes_reader->bytes(), bytes_reader->length());
} else if (reader.AsFileReader()) {
// Insert the file path instead of the contents, which may be too large.
const net::UploadFileElementReader* file_reader = reader.AsFileReader();
FeedNextFile(file_reader->path().AsUTF8Unsafe());
} else {
NOTIMPLEMENTED();
}
}
bool RawDataPresenter::Succeeded() {
return success_;
}
scoped_ptr<base::Value> RawDataPresenter::Result() {
if (!success_)
return scoped_ptr<base::Value>();
return list_.PassAs<base::Value>();
}
void RawDataPresenter::FeedNextBytes(const char* bytes, size_t size) {
subtle::AppendKeyValuePair(keys::kRequestBodyRawBytesKey,
BinaryValue::CreateWithCopiedBuffer(bytes, size),
list_.get());
}
void RawDataPresenter::FeedNextFile(const std::string& filename) {
// Insert the file path instead of the contents, which may be too large.
subtle::AppendKeyValuePair(keys::kRequestBodyRawFileKey,
new base::StringValue(filename),
list_.get());
}
// Implementation of ParsedDataPresenter.
ParsedDataPresenter::ParsedDataPresenter(const net::URLRequest& request)
: parser_(FormDataParser::Create(request)),
success_(parser_.get() != NULL),
dictionary_(success_ ? new base::DictionaryValue() : NULL) {
}
ParsedDataPresenter::~ParsedDataPresenter() {}
void ParsedDataPresenter::FeedNext(const net::UploadElementReader& reader) {
if (!success_)
return;
const net::UploadBytesElementReader* bytes_reader = reader.AsBytesReader();
if (!bytes_reader) {
return;
}
if (!parser_->SetSource(base::StringPiece(bytes_reader->bytes(),
bytes_reader->length()))) {
Abort();
return;
}
FormDataParser::Result result;
while (parser_->GetNextNameValue(&result)) {
GetOrCreateList(dictionary_.get(), result.name())->Append(
new base::StringValue(result.value()));
}
}
bool ParsedDataPresenter::Succeeded() {
if (success_ && !parser_->AllDataReadOK())
Abort();
return success_;
}
scoped_ptr<base::Value> ParsedDataPresenter::Result() {
if (!success_)
return scoped_ptr<base::Value>();
return dictionary_.PassAs<base::Value>();
}
// static
scoped_ptr<ParsedDataPresenter> ParsedDataPresenter::CreateForTests() {
const std::string form_type("application/x-www-form-urlencoded");
return scoped_ptr<ParsedDataPresenter>(new ParsedDataPresenter(form_type));
}
ParsedDataPresenter::ParsedDataPresenter(const std::string& form_type)
: parser_(FormDataParser::CreateFromContentTypeHeader(&form_type)),
success_(parser_.get() != NULL),
dictionary_(success_ ? new base::DictionaryValue() : NULL) {
}
void ParsedDataPresenter::Abort() {
success_ = false;
dictionary_.reset();
parser_.reset();
}
} // namespace extensions
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