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// Copyright (c) 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 "content/public/common/page_state.h"
#include "base/files/file_path.h"
#include "base/strings/utf_string_conversions.h"
#include "content/common/page_state_serialization.h"
namespace content {
namespace {
base::NullableString16 ToNullableString16(const std::string& utf8) {
return base::NullableString16(base::UTF8ToUTF16(utf8), false);
}
base::FilePath ToFilePath(const base::NullableString16& s) {
return base::FilePath::FromUTF16Unsafe(s.string());
}
void ToFilePathVector(const std::vector<base::NullableString16>& input,
std::vector<base::FilePath>* output) {
output->clear();
output->reserve(input.size());
for (size_t i = 0; i < input.size(); ++i)
output->push_back(ToFilePath(input[i]));
}
PageState ToPageState(const ExplodedPageState& state) {
std::string encoded_data;
if (!EncodePageState(state, &encoded_data))
return PageState();
return PageState::CreateFromEncodedData(encoded_data);
}
void RecursivelyRemovePasswordData(ExplodedFrameState* state) {
if (state->http_body.contains_passwords)
state->http_body = ExplodedHttpBody();
}
void RecursivelyRemoveScrollOffset(ExplodedFrameState* state) {
state->scroll_offset = gfx::Point();
state->pinch_viewport_scroll_offset = gfx::PointF();
}
void RecursivelyRemoveReferrer(ExplodedFrameState* state) {
state->referrer = base::NullableString16();
state->referrer_policy = blink::WebReferrerPolicyDefault;
for (std::vector<ExplodedFrameState>::iterator it = state->children.begin();
it != state->children.end();
++it) {
RecursivelyRemoveReferrer(&*it);
}
}
} // namespace
// static
PageState PageState::CreateFromEncodedData(const std::string& data) {
return PageState(data);
}
// static
PageState PageState::CreateFromURL(const GURL& url) {
ExplodedPageState state;
state.top.url_string = ToNullableString16(url.possibly_invalid_spec());
return ToPageState(state);
}
// static
PageState PageState::CreateForTesting(
const GURL& url,
bool body_contains_password_data,
const char* optional_body_data,
const base::FilePath* optional_body_file_path) {
ExplodedPageState state;
state.top.url_string = ToNullableString16(url.possibly_invalid_spec());
if (optional_body_data || optional_body_file_path) {
state.top.http_body.is_null = false;
if (optional_body_data) {
ExplodedHttpBodyElement element;
element.type = blink::WebHTTPBody::Element::TypeData;
element.data = optional_body_data;
state.top.http_body.elements.push_back(element);
}
if (optional_body_file_path) {
ExplodedHttpBodyElement element;
element.type = blink::WebHTTPBody::Element::TypeFile;
element.file_path =
ToNullableString16(optional_body_file_path->AsUTF8Unsafe());
state.top.http_body.elements.push_back(element);
state.referenced_files.push_back(element.file_path);
}
state.top.http_body.contains_passwords =
body_contains_password_data;
}
return ToPageState(state);
}
PageState::PageState() {
}
bool PageState::IsValid() const {
return !data_.empty();
}
bool PageState::Equals(const PageState& other) const {
return data_ == other.data_;
}
const std::string& PageState::ToEncodedData() const {
return data_;
}
std::vector<base::FilePath> PageState::GetReferencedFiles() const {
std::vector<base::FilePath> results;
ExplodedPageState state;
if (DecodePageState(data_, &state))
ToFilePathVector(state.referenced_files, &results);
return results;
}
PageState PageState::RemovePasswordData() const {
ExplodedPageState state;
if (!DecodePageState(data_, &state))
return PageState(); // Oops!
RecursivelyRemovePasswordData(&state.top);
return ToPageState(state);
}
PageState PageState::RemoveScrollOffset() const {
ExplodedPageState state;
if (!DecodePageState(data_, &state))
return PageState(); // Oops!
RecursivelyRemoveScrollOffset(&state.top);
return ToPageState(state);
}
PageState PageState::RemoveReferrer() const {
if (data_.empty())
return *this;
ExplodedPageState state;
if (!DecodePageState(data_, &state))
return PageState(); // Oops!
RecursivelyRemoveReferrer(&state.top);
return ToPageState(state);
}
PageState::PageState(const std::string& data)
: data_(data) {
// TODO(darin): Enable this DCHECK once tests have been fixed up to not pass
// bogus encoded data to CreateFromEncodedData.
//DCHECK(IsValid());
}
} // namespace content
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