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// Copyright 2016 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 "mojo/services/catalog/catalog.h"
#include "base/bind.h"
#include "base/strings/string_split.h"
#include "base/task_runner_util.h"
#include "mojo/common/url_type_converters.h"
#include "mojo/services/catalog/entry.h"
#include "mojo/services/catalog/store.h"
#include "mojo/shell/public/cpp/names.h"
#include "mojo/util/filename_util.h"
#include "url/gurl.h"
#include "url/url_util.h"
namespace catalog {
////////////////////////////////////////////////////////////////////////////////
// Catalog, public:
Catalog::Catalog(base::TaskRunner* blocking_pool, scoped_ptr<Store> store)
: store_(std::move(store)),
weak_factory_(this) {
PathService::Get(base::DIR_MODULE, &package_path_);
reader_.reset(new Reader(package_path_, blocking_pool));
DeserializeCatalog();
}
Catalog::~Catalog() {}
void Catalog::BindResolver(mojom::ResolverRequest request) {
resolver_bindings_.AddBinding(this, std::move(request));
}
void Catalog::BindShellResolver(
mojo::shell::mojom::ShellResolverRequest request) {
shell_resolver_bindings_.AddBinding(this, std::move(request));
}
void Catalog::BindCatalog(mojom::CatalogRequest request) {
catalog_bindings_.AddBinding(this, std::move(request));
}
////////////////////////////////////////////////////////////////////////////////
// Catalog, mojom::Resolver:
void Catalog::ResolveResponse(mojo::URLResponsePtr response,
const ResolveResponseCallback& callback) {
// TODO(beng): implement.
}
void Catalog::ResolveInterfaces(mojo::Array<mojo::String> interfaces,
const ResolveInterfacesCallback& callback) {
// TODO(beng): implement.
}
void Catalog::ResolveMIMEType(const mojo::String& mime_type,
const ResolveMIMETypeCallback& callback) {
// TODO(beng): implement.
}
void Catalog::ResolveProtocolScheme(
const mojo::String& scheme,
const ResolveProtocolSchemeCallback& callback) {
// TODO(beng): implement.
}
////////////////////////////////////////////////////////////////////////////////
// Catalog, mojo::shell::mojom::ShellResolver:
void Catalog::ResolveMojoName(const mojo::String& mojo_name,
const ResolveMojoNameCallback& callback) {
std::string resolved_name = mojo_name;
auto alias_iter = mojo_name_aliases_.find(resolved_name);
if (alias_iter != mojo_name_aliases_.end())
resolved_name = alias_iter->second.first;
std::string qualifier = mojo::GetNamePath(resolved_name);
auto qualifier_iter = qualifiers_.find(resolved_name);
if (qualifier_iter != qualifiers_.end())
qualifier = qualifier_iter->second;
if (IsNameInCatalog(resolved_name)) {
CompleteResolveMojoName(resolved_name, qualifier, callback);
} else {
reader_->Read(resolved_name,
base::Bind(&Catalog::OnReadEntry, weak_factory_.GetWeakPtr(),
resolved_name, callback));
}
}
////////////////////////////////////////////////////////////////////////////////
// Catalog, mojom::Catalog:
void Catalog::GetEntries(mojo::Array<mojo::String> names,
const GetEntriesCallback& callback) {
mojo::Map<mojo::String, mojom::CatalogEntryPtr> entries;
std::vector<mojo::String> names_vec = names.PassStorage();
for (const std::string& name : names_vec) {
if (catalog_.find(name) == catalog_.end())
continue;
const Entry& entry = catalog_[name];
mojom::CatalogEntryPtr entry_ptr(mojom::CatalogEntry::New());
entry_ptr->display_name = entry.display_name();
entries[entry.name()] = std::move(entry_ptr);
}
callback.Run(std::move(entries));
}
////////////////////////////////////////////////////////////////////////////////
// Catalog, private:
void Catalog::CompleteResolveMojoName(
const std::string& resolved_name,
const std::string& qualifier,
const ResolveMojoNameCallback& callback) {
auto entry_iter = catalog_.find(resolved_name);
CHECK(entry_iter != catalog_.end());
GURL package_url = mojo::util::AddTrailingSlashIfNeeded(
mojo::util::FilePathToFileURL(package_path_));
GURL file_url;
std::string type = mojo::GetNameType(resolved_name);
if (type == "mojo") {
// It's still a mojo: URL, use the default mapping scheme.
const std::string host = mojo::GetNamePath(resolved_name);
file_url = package_url.Resolve(host + "/" + host + ".mojo");
} else if (type == "exe") {
#if defined OS_WIN
std::string extension = ".exe";
#else
std::string extension;
#endif
file_url = package_url.Resolve(
mojo::GetNamePath(resolved_name) + extension);
}
mojo::shell::mojom::CapabilitySpecPtr capabilities_ptr =
mojo::shell::mojom::CapabilitySpec::From(
entry_iter->second.capabilities());
callback.Run(resolved_name, qualifier, std::move(capabilities_ptr),
file_url.spec());
}
bool Catalog::IsNameInCatalog(const std::string& name) const {
return catalog_.find(name) != catalog_.end();
}
void Catalog::DeserializeCatalog() {
if (!store_)
return;
const base::ListValue* catalog = store_->GetStore();
CHECK(catalog);
// TODO(sky): make this handle aliases.
for (auto it = catalog->begin(); it != catalog->end(); ++it) {
const base::DictionaryValue* dictionary = nullptr;
const base::Value* v = *it;
CHECK(v->GetAsDictionary(&dictionary));
scoped_ptr<Entry> entry = Entry::Deserialize(*dictionary);
if (entry)
catalog_[entry->name()] = *entry;
}
}
void Catalog::SerializeCatalog() {
scoped_ptr<base::ListValue> catalog(new base::ListValue);
for (const auto& entry : catalog_)
catalog->Append(entry.second.Serialize());
if (store_)
store_->UpdateStore(std::move(catalog));
}
// static
void Catalog::OnReadEntry(base::WeakPtr<Catalog> catalog,
const std::string& name,
const ResolveMojoNameCallback& callback,
scoped_ptr<Entry> entry) {
if (!catalog) {
callback.Run(name, mojo::GetNamePath(name), nullptr, nullptr);
return;
}
catalog->OnReadEntryImpl(name, callback, std::move(entry));
}
void Catalog::OnReadEntryImpl(const std::string& name,
const ResolveMojoNameCallback& callback,
scoped_ptr<Entry> entry) {
// TODO(beng): evaluate the conditions under which entry is null.
if (!entry) {
entry.reset(new Entry);
entry->set_name(name);
entry->set_display_name(name);
entry->set_qualifier(mojo::GetNamePath(name));
}
if (catalog_.find(entry->name()) == catalog_.end()) {
catalog_[entry->name()] = *entry;
if (!entry->applications().empty()) {
for (const auto& child : entry->applications()) {
mojo_name_aliases_[child.name()] =
std::make_pair(entry->name(), child.qualifier());
}
}
qualifiers_[entry->name()] = entry->qualifier();
}
SerializeCatalog();
auto qualifier_iter = qualifiers_.find(name);
DCHECK(qualifier_iter != qualifiers_.end());
std::string qualifier = qualifier_iter->second;
CompleteResolveMojoName(name, qualifier, callback);
}
} // namespace catalog
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