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update display of signing key fingerprint

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Update Utils.formatFingerprint() to create a more readible version of the
SHA-256 fingerprint of the signing key of the repo.
This commit is contained in:
Hans-Christoph Steiner 2014-01-28 20:18:58 -05:00
parent a02f985efa
commit 04b5db1f4c
3 changed files with 22 additions and 47 deletions
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2
res/values/strings.xml
View File

@ -168,7 +168,7 @@
<string name="unsigned">Unsigned</string>
<string name="repo_url">URL</string>
<string name="repo_num_apps">Number of apps</string>
<string name="repo_fingerprint">Fingerprint of Repo Signing Key (SHA1)</string>
<string name="repo_fingerprint">Fingerprint of Repo Signing Key (SHA-256)</string>
<string name="repo_description">Description</string>
<string name="repo_last_update">Last update</string>
<string name="repo_update">Update</string>

52
src/org/fdroid/fdroid/Utils.java
View File

@ -18,26 +18,20 @@
package org.fdroid.fdroid;
import android.os.Build;
import android.util.Log;
import android.content.Context;
import com.nostra13.universalimageloader.utils.StorageUtils;
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.File;
import java.io.FileReader;
import java.io.InputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.security.MessageDigest;
import java.util.Formatter;
import java.util.Locale;
import android.content.Context;
import com.nostra13.universalimageloader.utils.StorageUtils;
import org.fdroid.fdroid.data.Repo;
public final class Utils {
public static final int BUFFER_SIZE = 4096;
@ -48,8 +42,6 @@ public final class Utils {
public static final SimpleDateFormat LOG_DATE_FORMAT =
new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.ENGLISH);
public static void copy(InputStream input, OutputStream output)
throws IOException {
copy(input, output, null, null);
@ -160,34 +152,14 @@ public final class Utils {
return count;
}
public static String formatFingerprint(Repo repo) {
return formatFingerprint(repo.pubkey);
}
public static String formatFingerprint(String key) {
String fingerprintString;
if (key == null) {
return "";
}
try {
MessageDigest digest = MessageDigest.getInstance("SHA-1");
digest.update(Hasher.unhex(key));
byte[] fingerprint = digest.digest();
Formatter formatter = new Formatter(new StringBuilder());
formatter.format("%02X", fingerprint[0]);
for (int i = 1; i < fingerprint.length; i++) {
formatter.format(i % 5 == 0 ? " %02X" : ":%02X",
fingerprint[i]);
}
fingerprintString = formatter.toString();
formatter.close();
} catch (Exception e) {
Log.w("FDroid", "Unable to get certificate fingerprint.\n"
+ Log.getStackTraceString(e));
fingerprintString = "";
}
return fingerprintString;
// return a fingerprint formatted for display
public static String formatFingerprint(String fingerprint) {
if (fingerprint.length() != 62) // SHA-256 is 62 hex chars
return "BAD FINGERPRINT";
String displayFP = fingerprint.substring(0, 2);
for (int i = 2; i < fingerprint.length(); i = i + 2)
displayFP += " " + fingerprint.substring(i, i + 2);
return displayFP;
}
public static File getApkCacheDir(Context context) {

15
src/org/fdroid/fdroid/views/fragments/RepoDetailsFragment.java
View File

@ -8,6 +8,7 @@ import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.view.MenuItemCompat;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.Log;
import android.view.*;
@ -286,15 +287,17 @@ public class RepoDetailsFragment extends Fragment {
String repoFingerprint;
int repoFingerprintColor;
if (repo.pubkey != null && repo.pubkey.length() > 0) {
repoFingerprint = Utils.formatFingerprint(repo.pubkey);
repoFingerprintColor = getResources().getColor(R.color.signed);
repoFingerprintDescView.setVisibility(View.GONE);
} else {
repoFingerprint = getResources().getString(R.string.unsigned);
// TODO show the current state of the signature check, not just whether there is a key or not
if (TextUtils.isEmpty(repo.fingerprint) && TextUtils.isEmpty(repo.pubkey)) {
repoFingerprint = getResources().getString(R.string.unsigned);
repoFingerprintColor = getResources().getColor(R.color.unsigned);
repoFingerprintDescView.setVisibility(View.VISIBLE);
repoFingerprintDescView.setText(getResources().getString(R.string.unsigned_description));
} else {
// this is based on repo.fingerprint always existing, which it should
repoFingerprint = Utils.formatFingerprint(repo.fingerprint);
repoFingerprintColor = getResources().getColor(R.color.signed);
repoFingerprintDescView.setVisibility(View.GONE);
}
repoFingerprintView.setText(repoFingerprint);