Just An Application

August 6, 2014

And Another One: Part One — Ouch !


    private static boolean containsPluginPermissionAndSignatures(PackageInfo pkgInfo) {
        // check if the plugin has the required permissions
        String permissions[] = pkgInfo.requestedPermissions;
        if (permissions == null) {
            return false;
        boolean permissionOk = false;
        for (String permit : permissions) {
            if (PLUGIN_PERMISSION.equals(permit)) {
                permissionOk = true;
        if (!permissionOk) {
            return false;
        // check to ensure the plugin is properly signed
        Signature signatures[] = pkgInfo.signatures;
        if (signatures == null) {
            return false;
        if (SystemProperties.getBoolean("ro.secure", false)) {
            boolean signatureMatch = false;
            for (Signature signature : signatures) {
                for (int i = 0; i < SIGNATURES.length; i++) {
                    if (SIGNATURES[i].equals(signature)) {
                        signatureMatch = true;
            if (!signatureMatch) {
                return false;
        return true;



Copyright (c) 2014 By Simon Lewis. All Rights Reserved.

Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and owner Simon Lewis is strictly prohibited.

Excerpts and links may be used, provided that full and clear credit is given to Simon Lewis and justanapplication.wordpress.com with appropriate and specific direction to the original content.


1 Comment »

  1. […] section of the method PluginManager.containsPluginPermissionAndSignatures of interest is […]

    Pingback by And Another One: Two — Why Ouch ? | Just An Application — August 7, 2014 @ 7:34 am

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