\r\n";
// Newline separator.
const char kNewline[] = "\r\n";
// The following are used for bookmarks.
// Start of a bookmark.
const char kBookmarkStart[] = "
- ";
// End of a bookmark.
const char kBookmarkEnd[] = "";
// The following are used when writing folders.
// Start of a folder.
const char kFolderStart[] = "
";
// After kLastModified when writing a user created folder.
const char kFolderAttributeEnd[] = "\">";
// End of the folder.
const char kFolderEnd[] = "
";
// Start of the children of a folder.
const char kFolderChildren[] = " ";
// End of the children for a folder.
const char kFolderChildrenEnd[] = "
";
// Number of characters to indent by.
const size_t kIndentSize = 4;
// Class responsible for the actual writing. Takes ownership of favicons_map.
class Writer : public base::RefCountedThreadSafe {
public:
Writer(base::Value* bookmarks,
const base::FilePath& path,
BookmarkFaviconFetcher::URLFaviconMap* favicons_map,
BookmarksExportObserver* observer)
: bookmarks_(bookmarks),
path_(path),
favicons_map_(favicons_map),
observer_(observer) {
}
// Writing bookmarks and favicons data to file.
void DoWrite() {
if (!OpenFile())
return;
base::Value* roots = NULL;
if (!Write(kHeader) ||
bookmarks_->GetType() != base::Value::TYPE_DICTIONARY ||
!static_cast(bookmarks_.get())->Get(
BookmarkCodec::kRootsKey, &roots) ||
roots->GetType() != base::Value::TYPE_DICTIONARY) {
NOTREACHED();
return;
}
base::DictionaryValue* roots_d_value =
static_cast(roots);
base::Value* root_folder_value;
base::Value* other_folder_value = NULL;
base::Value* mobile_folder_value = NULL;
if (!roots_d_value->Get(BookmarkCodec::kRootFolderNameKey,
&root_folder_value) ||
root_folder_value->GetType() != base::Value::TYPE_DICTIONARY ||
!roots_d_value->Get(BookmarkCodec::kOtherBookmarkFolderNameKey,
&other_folder_value) ||
other_folder_value->GetType() != base::Value::TYPE_DICTIONARY ||
!roots_d_value->Get(BookmarkCodec::kMobileBookmarkFolderNameKey,
&mobile_folder_value) ||
mobile_folder_value->GetType() != base::Value::TYPE_DICTIONARY) {
NOTREACHED();
return; // Invalid type for root folder and/or other folder.
}
IncrementIndent();
if (!WriteNode(*static_cast(root_folder_value),
BookmarkNode::BOOKMARK_BAR) ||
!WriteNode(*static_cast(other_folder_value),
BookmarkNode::OTHER_NODE) ||
!WriteNode(*static_cast(mobile_folder_value),
BookmarkNode::MOBILE)) {
return;
}
DecrementIndent();
Write(kFolderChildrenEnd);
Write(kNewline);
// File close is forced so that unit test could read it.
file_.reset();
NotifyOnFinish();
}
private:
friend class base::RefCountedThreadSafe;
// Types of text being written out. The type dictates how the text is
// escaped.
enum TextType {
// The text is the value of an html attribute, eg foo in
// .
ATTRIBUTE_VALUE,
// Actual content, eg foo in foo.
CONTENT
};
~Writer() {}
// Opens the file, returning true on success.
bool OpenFile() {
int flags = base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE;
file_.reset(new base::File(path_, flags));
return file_->IsValid();
}
// Increments the indent.
void IncrementIndent() {
indent_.resize(indent_.size() + kIndentSize, ' ');
}
// Decrements the indent.
void DecrementIndent() {
DCHECK(!indent_.empty());
indent_.resize(indent_.size() - kIndentSize, ' ');
}
// Called at the end of the export process.
void NotifyOnFinish() {
if (observer_ != NULL) {
observer_->OnExportFinished();
}
}
// Writes raw text out returning true on success. This does not escape
// the text in anyway.
bool Write(const std::string& text) {
if (!text.length())
return true;
size_t wrote = file_->WriteAtCurrentPos(text.c_str(), text.length());
bool result = (wrote == text.length());
DCHECK(result);
return result;
}
// Writes out the text string (as UTF8). The text is escaped based on
// type.
bool Write(const std::string& text, TextType type) {
DCHECK(base::IsStringUTF8(text));
std::string utf8_string;
switch (type) {
case ATTRIBUTE_VALUE:
// Convert " to "
utf8_string = text;
ReplaceSubstringsAfterOffset(&utf8_string, 0, "\"", """);
break;
case CONTENT:
utf8_string = net::EscapeForHTML(text);
break;
default:
NOTREACHED();
}
return Write(utf8_string);
}
// Indents the current line.
bool WriteIndent() {
return Write(indent_);
}
// Converts a time string written to the JSON codec into a time_t string
// (used by bookmarks.html) and writes it.
bool WriteTime(const std::string& time_string) {
int64 internal_value;
base::StringToInt64(time_string, &internal_value);
return Write(base::Int64ToString(
base::Time::FromInternalValue(internal_value).ToTimeT()));
}
// Writes the node and all its children, returning true on success.
bool WriteNode(const base::DictionaryValue& value,
BookmarkNode::Type folder_type) {
std::string title, date_added_string, type_string;
if (!value.GetString(BookmarkCodec::kNameKey, &title) ||
!value.GetString(BookmarkCodec::kDateAddedKey, &date_added_string) ||
!value.GetString(BookmarkCodec::kTypeKey, &type_string) ||
(type_string != BookmarkCodec::kTypeURL &&
type_string != BookmarkCodec::kTypeFolder)) {
NOTREACHED();
return false;
}
if (type_string == BookmarkCodec::kTypeURL) {
std::string url_string;
if (!value.GetString(BookmarkCodec::kURLKey, &url_string)) {
NOTREACHED();
return false;
}
std::string favicon_string;
BookmarkFaviconFetcher::URLFaviconMap::iterator itr =
favicons_map_->find(url_string);
if (itr != favicons_map_->end()) {
scoped_refptr data(itr->second.get());
std::string favicon_base64_encoded;
base::Base64Encode(std::string(data->front_as(), data->size()),
&favicon_base64_encoded);
GURL favicon_url("data:image/png;base64," + favicon_base64_encoded);
favicon_string = favicon_url.spec();
}
if (!WriteIndent() ||
!Write(kBookmarkStart) ||
!Write(url_string, ATTRIBUTE_VALUE) ||
!Write(kAddDate) ||
!WriteTime(date_added_string) ||
(!favicon_string.empty() &&
(!Write(kIcon) ||
!Write(favicon_string, ATTRIBUTE_VALUE))) ||
!Write(kBookmarkAttributeEnd) ||
!Write(title, CONTENT) ||
!Write(kBookmarkEnd) ||
!Write(kNewline)) {
return false;
}
return true;
}
// Folder.
std::string last_modified_date;
const base::Value* child_values = NULL;
if (!value.GetString(BookmarkCodec::kDateModifiedKey,
&last_modified_date) ||
!value.Get(BookmarkCodec::kChildrenKey, &child_values) ||
child_values->GetType() != base::Value::TYPE_LIST) {
NOTREACHED();
return false;
}
if (folder_type != BookmarkNode::OTHER_NODE &&
folder_type != BookmarkNode::MOBILE) {
// The other/mobile folder name are not written out. This gives the effect
// of making the contents of the 'other folder' be a sibling to the
// bookmark bar folder.
if (!WriteIndent() ||
!Write(kFolderStart) ||
!WriteTime(date_added_string) ||
!Write(kLastModified) ||
!WriteTime(last_modified_date)) {
return false;
}
if (folder_type == BookmarkNode::BOOKMARK_BAR) {
if (!Write(kBookmarkBar))
return false;
title = l10n_util::GetStringUTF8(IDS_BOOKMARK_BAR_FOLDER_NAME);
} else if (!Write(kFolderAttributeEnd)) {
return false;
}
if (!Write(title, CONTENT) ||
!Write(kFolderEnd) ||
!Write(kNewline) ||
!WriteIndent() ||
!Write(kFolderChildren) ||
!Write(kNewline)) {
return false;
}
IncrementIndent();
}
// Write the children.
const base::ListValue* children =
static_cast(child_values);
for (size_t i = 0; i < children->GetSize(); ++i) {
const base::Value* child_value;
if (!children->Get(i, &child_value) ||
child_value->GetType() != base::Value::TYPE_DICTIONARY) {
NOTREACHED();
return false;
}
if (!WriteNode(*static_cast(child_value),
BookmarkNode::FOLDER)) {
return false;
}
}
if (folder_type != BookmarkNode::OTHER_NODE &&
folder_type != BookmarkNode::MOBILE) {
// Close out the folder.
DecrementIndent();
if (!WriteIndent() ||
!Write(kFolderChildrenEnd) ||
!Write(kNewline)) {
return false;
}
}
return true;
}
// The BookmarkModel as a base::Value. This value was generated from the
// BookmarkCodec.
scoped_ptr bookmarks_;
// Path we're writing to.
base::FilePath path_;
// Map that stores favicon per URL.
scoped_ptr favicons_map_;
// Observer to be notified on finish.
BookmarksExportObserver* observer_;
// File we're writing to.
scoped_ptr file_;
// How much we indent when writing a bookmark/folder. This is modified
// via IncrementIndent and DecrementIndent.
std::string indent_;
DISALLOW_COPY_AND_ASSIGN(Writer);
};
} // namespace
BookmarkFaviconFetcher::BookmarkFaviconFetcher(
Profile* profile,
const base::FilePath& path,
BookmarksExportObserver* observer)
: profile_(profile),
path_(path),
observer_(observer) {
favicons_map_.reset(new URLFaviconMap());
registrar_.Add(this,
chrome::NOTIFICATION_PROFILE_DESTROYED,
content::Source(profile_));
}
BookmarkFaviconFetcher::~BookmarkFaviconFetcher() {
}
void BookmarkFaviconFetcher::ExportBookmarks() {
ExtractUrls(BookmarkModelFactory::GetForProfile(
profile_)->bookmark_bar_node());
ExtractUrls(BookmarkModelFactory::GetForProfile(profile_)->other_node());
ExtractUrls(BookmarkModelFactory::GetForProfile(profile_)->mobile_node());
if (!bookmark_urls_.empty())
FetchNextFavicon();
else
ExecuteWriter();
}
void BookmarkFaviconFetcher::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
if (chrome::NOTIFICATION_PROFILE_DESTROYED == type && fetcher != NULL) {
base::MessageLoop::current()->DeleteSoon(FROM_HERE, fetcher);
fetcher = NULL;
}
}
void BookmarkFaviconFetcher::ExtractUrls(const BookmarkNode* node) {
if (node->is_url()) {
std::string url = node->url().spec();
if (!url.empty())
bookmark_urls_.push_back(url);
} else {
for (int i = 0; i < node->child_count(); ++i)
ExtractUrls(node->GetChild(i));
}
}
void BookmarkFaviconFetcher::ExecuteWriter() {
// BookmarkModel isn't thread safe (nor would we want to lock it down
// for the duration of the write), as such we make a copy of the
// BookmarkModel using BookmarkCodec then write from that.
BookmarkCodec codec;
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
base::Bind(&Writer::DoWrite,
new Writer(codec.Encode(BookmarkModelFactory::GetForProfile(
profile_)),
path_, favicons_map_.release(), observer_)));
if (fetcher != NULL) {
base::MessageLoop::current()->DeleteSoon(FROM_HERE, fetcher);
fetcher = NULL;
}
}
bool BookmarkFaviconFetcher::FetchNextFavicon() {
if (bookmark_urls_.empty()) {
return false;
}
do {
std::string url = bookmark_urls_.front();
// Filter out urls that we've already got favicon for.
URLFaviconMap::const_iterator iter = favicons_map_->find(url);
if (favicons_map_->end() == iter) {
FaviconService* favicon_service = FaviconServiceFactory::GetForProfile(
profile_, ServiceAccessType::EXPLICIT_ACCESS);
favicon_service->GetRawFaviconForPageURL(
GURL(url),
favicon_base::FAVICON,
gfx::kFaviconSize,
base::Bind(&BookmarkFaviconFetcher::OnFaviconDataAvailable,
base::Unretained(this)),
&cancelable_task_tracker_);
return true;
} else {
bookmark_urls_.pop_front();
}
} while (!bookmark_urls_.empty());
return false;
}
void BookmarkFaviconFetcher::OnFaviconDataAvailable(
const favicon_base::FaviconRawBitmapResult& bitmap_result) {
GURL url;
if (!bookmark_urls_.empty()) {
url = GURL(bookmark_urls_.front());
bookmark_urls_.pop_front();
}
if (bitmap_result.is_valid() && !url.is_empty()) {
favicons_map_->insert(
make_pair(url.spec(), bitmap_result.bitmap_data));
}
if (FetchNextFavicon()) {
return;
}
ExecuteWriter();
}
namespace bookmark_html_writer {
void WriteBookmarks(Profile* profile,
const base::FilePath& path,
BookmarksExportObserver* observer) {
// BookmarkModel isn't thread safe (nor would we want to lock it down
// for the duration of the write), as such we make a copy of the
// BookmarkModel using BookmarkCodec then write from that.
if (fetcher == NULL) {
fetcher = new BookmarkFaviconFetcher(profile, path, observer);
fetcher->ExportBookmarks();
}
}
} // namespace bookmark_html_writer