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analysis.go
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analysis.go
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// Copyright (C) 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package apk
import (
"archive/zip"
"context"
"path/filepath"
"github.com/google/gapid/core/log"
)
// engineSignatures is used to identify the middleware engine used based on
// files found in the APK.
var engineSignatures = map[string]string{
"libunity.so": "unity",
"libUnrealEngine3.so": "unreal3",
}
// Analyze parses the APK file and returns the APK's information.
func Analyze(ctx context.Context, apkData []byte) (*Information, error) {
files, err := Read(ctx, apkData)
if err != nil {
return nil, err
}
m, err := GetManifest(ctx, files)
if err != nil {
return nil, err
}
activity, action, err := m.MainActivity(ctx)
if err != nil {
return nil, log.Err(ctx, err, "Finding launch activity")
}
return &Information{
Name: m.Package, // TODO
VersionCode: int32(m.VersionCode),
VersionName: m.VersionName,
Package: m.Package,
Activity: activity,
Action: action,
Engine: engine(files),
ABI: GatherABIs(files),
Debuggable: m.Application.Debuggable,
}, nil
}
func engine(files []*zip.File) string {
for _, file := range files {
_, name := filepath.Split(file.Name)
for sig, engine := range engineSignatures {
if name == sig {
return engine
}
}
}
return "<unknown>"
}
func (i *Information) URI() string {
var uri string
if i.Action != "" {
uri = i.Action + ":"
}
uri += i.Package
if i.Activity != "" {
uri += "/" + i.Activity
}
return uri
}