blob: ce81c753607e6640e06e483c810a4e312862388b [file] [log] [blame]
// Copyright 2018 The Fuchsia 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 "src/sys/appmgr/scheme_map.h"
#include <string>
#include <vector>
#include "rapidjson/document.h"
#include "src/lib/files/file.h"
#include "src/lib/fxl/strings/concatenate.h"
#include "src/lib/fxl/strings/join_strings.h"
#include "src/lib/fxl/strings/string_printf.h"
namespace component {
const char SchemeMap::kConfigDirPath[] = "/pkgfs/packages/config-data/0/data/appmgr/scheme_map/";
bool SchemeMap::ParseFromDirectory(const std::string& path) {
internal_map_.clear();
auto cb = [this](rapidjson::Document document) { ParseDocument(std::move(document)); };
json_parser_.ParseFromDirectory(path, cb);
return !json_parser_.HasError();
}
void SchemeMap::ParseDocument(rapidjson::Document document) {
if (!document.IsObject()) {
json_parser_.ReportError("Document is not a valid object.");
return;
}
auto launchers = document.FindMember("launchers");
if (launchers == document.MemberEnd()) {
json_parser_.ReportError("Missing 'launchers'.");
return;
}
if (!launchers->value.IsObject()) {
json_parser_.ReportError("'launchers' is not a valid object.");
return;
}
for (auto it = launchers->value.MemberBegin(); it != launchers->value.MemberEnd(); ++it) {
const std::string& launcher = it->name.GetString();
if (!it->value.IsArray()) {
json_parser_.ReportError(
fxl::StringPrintf("Schemes for '%s' are not a list.", launcher.c_str()));
return;
}
for (const auto& scheme : it->value.GetArray()) {
if (!scheme.IsString()) {
json_parser_.ReportError(
fxl::StringPrintf("Scheme for '%s' is not a string.", launcher.c_str()));
} else {
if (internal_map_.count(scheme.GetString()) > 0) {
json_parser_.ReportError(
fxl::StringPrintf("Scheme '%s' is assigned to two launchers.", scheme.GetString()));
}
internal_map_[scheme.GetString()] = launcher;
}
}
}
}
std::string SchemeMap::LookUp(const std::string& scheme) const {
if (internal_map_.count(scheme) == 0) {
return "";
}
return internal_map_.find(scheme)->second;
}
} // namespace component