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Code Issues Releases Wiki Activity

Refactoring

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This commit is contained in:
M66B 2022-07-24 12:52:12 +02:00
parent f5fff57f88
commit c1b89c8655
1 changed files with 56 additions and 42 deletions
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98
app/src/extra/java/eu/faircode/email/VirusTotal.java
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@ -23,6 +23,7 @@ import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Pair;
import androidx.preference.PreferenceManager;
@ -58,12 +59,60 @@ public class VirusTotal {
Bundle result = new Bundle();
result.putString("uri", uri);
Pair<Integer, String> response = call(context, "api/v3/files/" + hash);
if (response == null)
return result;
if (response.first != HttpsURLConnection.HTTP_OK &&
response.first != HttpsURLConnection.HTTP_NOT_FOUND)
throw new FileNotFoundException(response.second);
if (response.first == HttpsURLConnection.HTTP_NOT_FOUND) {
result.putInt("count", 0);
result.putInt("malicious", 0);
} else {
// https://developers.virustotal.com/reference/files
// Example: https://gist.github.com/M66B/4ea95fdb93fb10bf4047761fcc9ec21a
JSONObject jroot = new JSONObject(response.second);
JSONObject jdata = jroot.getJSONObject("data");
JSONObject jattributes = jdata.getJSONObject("attributes");
JSONObject jclassification = jattributes.optJSONObject("popular_threat_classification");
String label = (jclassification == null ? null : jclassification.getString("suggested_threat_label"));
int count = 0;
int malicious = 0;
JSONObject janalysis = jattributes.getJSONObject("last_analysis_results");
JSONArray jnames = janalysis.names();
for (int i = 0; i < jnames.length(); i++) {
String name = jnames.getString(i);
JSONObject jresult = janalysis.getJSONObject(name);
String category = jresult.getString("category");
Log.i("VT " + name + "=" + category);
if (!"type-unsupported".equals(category))
count++;
if ("malicious".equals(category))
malicious++;
}
Log.i("VT analysis=" + malicious + "/" + count + " label=" + label);
result.putInt("count", count);
result.putInt("malicious", malicious);
result.putString("label", label);
}
return result;
}
static Pair<Integer, String> call(Context context, String api) throws IOException {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
String apikey = prefs.getString("vt_apikey", null);
if (TextUtils.isEmpty(apikey))
return result;
return null;
URL url = new URL(URI_ENDPOINT + "api/v3/files/" + hash);
URL url = new URL(URI_ENDPOINT + api);
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setReadTimeout(VT_TIMEOUT * 1000);
@ -75,7 +124,7 @@ public class VirusTotal {
try {
int status = connection.getResponseCode();
if (status != HttpsURLConnection.HTTP_OK && status != HttpsURLConnection.HTTP_NOT_FOUND) {
if (status != HttpsURLConnection.HTTP_OK) {
String error = "Error " + status + ": " + connection.getResponseMessage();
try {
InputStream is = connection.getErrorStream();
@ -84,50 +133,15 @@ public class VirusTotal {
} catch (Throwable ex) {
Log.w(ex);
}
throw new FileNotFoundException(error);
return new Pair<>(status, error);
}
if (status == HttpsURLConnection.HTTP_NOT_FOUND) {
result.putInt("count", 0);
result.putInt("malicious", 0);
} else {
String response = Helper.readStream(connection.getInputStream());
Log.i("VT response=" + response);
String response = Helper.readStream(connection.getInputStream());
Log.i("VT response=" + response);
return new Pair<>(status, response);
// https://developers.virustotal.com/reference/files
// Example: https://gist.github.com/M66B/4ea95fdb93fb10bf4047761fcc9ec21a
JSONObject jroot = new JSONObject(response);
JSONObject jdata = jroot.getJSONObject("data");
JSONObject jattributes = jdata.getJSONObject("attributes");
JSONObject jclassification = jattributes.optJSONObject("popular_threat_classification");
String label = (jclassification == null ? null : jclassification.getString("suggested_threat_label"));
int count = 0;
int malicious = 0;
JSONObject janalysis = jattributes.getJSONObject("last_analysis_results");
JSONArray jnames = janalysis.names();
for (int i = 0; i < jnames.length(); i++) {
String name = jnames.getString(i);
JSONObject jresult = janalysis.getJSONObject(name);
String category = jresult.getString("category");
Log.i("VT " + name + "=" + category);
if (!"type-unsupported".equals(category))
count++;
if ("malicious".equals(category))
malicious++;
}
Log.i("VT analysis=" + malicious + "/" + count + " label=" + label);
result.putInt("count", count);
result.putInt("malicious", malicious);
result.putString("label", label);
}
} finally {
connection.disconnect();
}
return result;
}
}