Created
November 6, 2019 08:44
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import java.io.File; | |
import java.io.IOException; | |
import java.io.InputStream; | |
import java.security.MessageDigest; | |
import java.util.ArrayList; | |
import java.util.Enumeration; | |
import java.util.List; | |
import java.util.Map; | |
import java.util.zip.ZipEntry; | |
import java.util.zip.ZipFile; | |
import android.util.Base64; | |
import com.google.gson.JsonElement; | |
import com.google.gson.JsonObject; | |
import com.google.gson.JsonPrimitive; | |
public class OtaInfo { | |
public static void pollOtaCerts(Map<String, JsonElement> results) { | |
File keystore = new File("/system/etc/security/otacerts.zip"); | |
List<String> otaCerts = new ArrayList<>(); | |
ZipFile zip = null; | |
try { | |
zip = new ZipFile(keystore); | |
Enumeration<? extends ZipEntry> entries = zip.entries(); | |
byte[] temp = new byte[4096]; | |
MessageDigest md = MessageDigest.getInstance("SHA-1"); | |
while (entries.hasMoreElements()) { | |
InputStream is = zip.getInputStream((ZipEntry) entries.nextElement()); | |
md.reset(); | |
while (true) { | |
int read = is.read(temp); | |
if (read <= 0) { | |
break; | |
} | |
md.update(temp, 0, read); | |
} | |
is.close(); | |
otaCerts.add(Base64.encodeToString(md.digest(), 2)); | |
} | |
} catch (Exception e) { | |
e.printStackTrace(); | |
throw new RuntimeException(e); | |
} finally { | |
if (zip != null) | |
try { | |
zip.close(); | |
} catch (IOException e) { | |
} | |
} | |
JsonElement certs = SystemInfoApp.GSON.toJsonTree(otaCerts); | |
File f = new File("/system/recovery-from-boot.p"); | |
boolean otaInstalled = f.exists(); | |
JsonObject ota = new JsonObject(); | |
ota.add("otaInstalled", new JsonPrimitive(otaInstalled)); | |
ota.add("certs", certs); | |
results.put("otaInfo", ota); | |
} | |
} |
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