Signal-Android | A private messenger for Android. | Encryption library

by signalapp Java Version: Current License: GPL-3.0

Download this library from

kandi X-RAY | Signal-Android Summary

Signal-Android is a Java library typically used in Telecommunications, Media, Telecom, Security, Encryption applications. Signal-Android has no bugs, it has no vulnerabilities, it has build file available, it has a Strong Copyleft License and it has medium support. You can download it from GitHub.

Signal is a messaging app for simple private communication with friends. Signal uses your phone’s data connection (WiFi/3G/4G) to communicate securely, optionally supports plain SMS/MMS to function as a unified messenger, and can also encrypt the stored messages on your phone. Currently available on the Play store and [signal.org](https://signal.org/android/apk/). <a href='https://play.google.com/store/apps/details?id=org.thoughtcrime.securesms&pcampaignid=MKT-Other-global-all-co-prtnr-py-PartBadge-Mar2515-1'><img alt='Get it on Google Play' src='https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png' height='80px'/></a>.

Support

Quality

Security

License

Reuse

kandi-support Support

Signal-Android has a medium active ecosystem.
It has 22277 star(s) with 5420 fork(s). There are 917 watchers for this library.
It had no major release in the last 12 months.
There are 259 open issues and 9290 have been closed. On average issues are closed in 81 days. There are 34 open pull requests and 0 closed requests.
It has a neutral sentiment in the developer community.
The latest version of Signal-Android is current.

Signal-Android Support

Best in #Encryption

Average in #Encryption

Signal-Android Support

Best in #Encryption

Average in #Encryption

quality kandi Quality

Signal-Android has 0 bugs and 0 code smells.

Signal-Android Quality

Best in #Encryption

Average in #Encryption

Signal-Android Quality

Best in #Encryption

Average in #Encryption

security Security

Signal-Android has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
Signal-Android code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

Signal-Android Security

Best in #Encryption

Average in #Encryption

Signal-Android Security

Best in #Encryption

Average in #Encryption

license License

Signal-Android is licensed under the GPL-3.0 License. This license is Strong Copyleft.
Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Signal-Android License

Best in #Encryption

Average in #Encryption

Signal-Android License

Best in #Encryption

Average in #Encryption

build Reuse

Signal-Android releases are not available. You will need to build from source code and install.
Build file is available. You can build the component from source.
Signal-Android saves you 833630 person hours of effort in developing the same functionality from scratch.
It has 619482 lines of code, 29824 functions and 5540 files.
It has medium code complexity. Code complexity directly impacts maintainability of the code.

Signal-Android Reuse

Best in #Encryption

Average in #Encryption

Signal-Android Reuse

Best in #Encryption

Average in #Encryption

Top functions reviewed by kandi - BETA

kandi has reviewed Signal-Android and discovered the below as its top functions. This is intended to give you an instant insight into Signal-Android implemented functionality, and help decide if they suit your requirements.

On application level upgrade .
Set media attributes .
Creates a signal message from a payload .
Returns the migration jobs .
Build query for attachments .
Extracts audio data from the specified file .
Override onCreateOptions menu .
Create message content .
Starts a group send operation .
Performs a synchronous sync operation .

Signal-Android Key Features

A private messenger for Android.

Signal-Android Examples and Code Snippets

See all related Code Snippets

How to add a library to Gradle build in Android Studio project?

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dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
    ...
}

IllegalThreadStateException OneSignal crash workaround

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synchronized void startDelayedWrite() {
            if (mHandler == null) {
                start();
                mHandler = new Handler(getLooper());
            }
//rest of function irrelevant.

public Looper getLooper() {
        if (!isAlive()) {
            return null;
        }
//rest omitted b/c irrelevant

@Override
    public void run() {
        mTid = Process.myTid();
        Looper.prepare();
        synchronized (this) {
            mLooper = Looper.myLooper();
            notifyAll();
        }
        Process.setThreadPriority(mPriority);
        onLooperPrepared();
        Looper.loop();
        mTid = -1;
    }

for (;;) {
            Message msg = queue.next(); // might block
            if (msg == null) {
                // No message indicates that the message queue is quitting.
                return;
            }

-----------------------

synchronized void startDelayedWrite() {
            if (mHandler == null) {
                start();
                mHandler = new Handler(getLooper());
            }
//rest of function irrelevant.

public Looper getLooper() {
        if (!isAlive()) {
            return null;
        }
//rest omitted b/c irrelevant

@Override
    public void run() {
        mTid = Process.myTid();
        Looper.prepare();
        synchronized (this) {
            mLooper = Looper.myLooper();
            notifyAll();
        }
        Process.setThreadPriority(mPriority);
        onLooperPrepared();
        Looper.loop();
        mTid = -1;
    }

for (;;) {
            Message msg = queue.next(); // might block
            if (msg == null) {
                // No message indicates that the message queue is quitting.
                return;
            }

-----------------------

synchronized void startDelayedWrite() {
            if (mHandler == null) {
                start();
                mHandler = new Handler(getLooper());
            }
//rest of function irrelevant.

public Looper getLooper() {
        if (!isAlive()) {
            return null;
        }
//rest omitted b/c irrelevant

@Override
    public void run() {
        mTid = Process.myTid();
        Looper.prepare();
        synchronized (this) {
            mLooper = Looper.myLooper();
            notifyAll();
        }
        Process.setThreadPriority(mPriority);
        onLooperPrepared();
        Looper.loop();
        mTid = -1;
    }

for (;;) {
            Message msg = queue.next(); // might block
            if (msg == null) {
                // No message indicates that the message queue is quitting.
                return;
            }

-----------------------

synchronized void startDelayedWrite() {
            if (mHandler == null) {
                start();
                mHandler = new Handler(getLooper());
            }
//rest of function irrelevant.

public Looper getLooper() {
        if (!isAlive()) {
            return null;
        }
//rest omitted b/c irrelevant

@Override
    public void run() {
        mTid = Process.myTid();
        Looper.prepare();
        synchronized (this) {
            mLooper = Looper.myLooper();
            notifyAll();
        }
        Process.setThreadPriority(mPriority);
        onLooperPrepared();
        Looper.loop();
        mTid = -1;
    }

for (;;) {
            Message msg = queue.next(); // might block
            if (msg == null) {
                // No message indicates that the message queue is quitting.
                return;
            }

See all related Code Snippets

Community Discussions

Trending Discussions on Signal-Android

How to add a library to Gradle build in Android Studio project?
IllegalThreadStateException OneSignal crash workaround

Trending Discussions on Signal-Android

QUESTION

How to add a library to Gradle build in Android Studio project?

Asked 2021-Jan-31 at 15:31

I want to add the following library to the Gradle build of my project. The library that I want to add is : signal-protocol-java-2.8.1.jar that I have downloaded. How can I add it in the Gradle build, so that I import the classes included in the .jar it in the java classes that I am developing ?

Here is my build.gradle file :

buildscript {
    repositories {
        google()
        mavenCentral()
        jcenter {
            content {
                includeVersion 'org.jetbrains.trove4j', 'trove4j', '20160824'
                includeGroupByRegex "com\\.archinamon.*"
            }
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.1'
        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.14'
        classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0-alpha09"
    }
}


ext {
    BUILD_TOOL_VERSION = '30.0.2'

    COMPILE_SDK = 30
    TARGET_SDK  = 30
    MINIMUM_SDK = 19

    JAVA_VERSION = JavaVersion.VERSION_1_8
}

wrapper {
    distributionType = Wrapper.DistributionType.ALL
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

subprojects {
    ext.lib_signal_service_version_number   = "2.15.3"
    ext.lib_signal_service_group_info       = "org.whispersystems"
    ext.lib_signal_metadata_version         = "0.1.2"

    if (JavaVersion.current().isJava8Compatible()) {
        allprojects {
            tasks.withType(Javadoc) {
                options.addStringOption('Xdoclint:none', '-quiet')
            }
        }
    }
}

task qa {
    group 'Verification'
    description 'Quality Assurance. Run before pushing.'
    dependsOn ':Signal-Android:testPlayProdReleaseUnitTest',
            ':Signal-Android:lintPlayProdRelease',
            ':libsignal-service:test',
            ':Signal-Android:assemblePlayProdDebug'
}

ANSWER

Answered 2021-Jan-31 at 15:31

You have to edit your module-level build.gradle (the one you've posted is project-level). It's typically in the "app" folder of your project. Find there dependencies block and add this line:

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
    ...
}

Then create a folder "libs" near this gradle file and put your .jar library there. Sync the project with Gradle.

Source https://stackoverflow.com/questions/65974393

QUESTION

IllegalThreadStateException OneSignal crash workaround

Asked 2020-Mar-25 at 16:48

Our app daily receives around 1k crashes based on bug mentioned on OneSignal's github issues.

Bug explanation:

Unfortunately, I can't reproduce this issue. All crashes come from Crashlytics reports. SDK version 3.12.4

Devices:

1) Samsung: Galaxy A5(2017), Galaxy S8, Galaxy A50, Galaxy S10+, Galaxy S10  
2) Xiaomi: Mi A2, Mi A2 lite, Mi A1, Mi A3, Redmi Note 5 Pro 
3) Oneplus: ONEPLUS A6010, OnePlus5T, GM191011, GM19008, OnePlus58

Stacktrace:

Caused by java.lang.IllegalThreadStateException
       at java.lang.Thread.start(Thread.java:724)
       at com.onesignal.OneSignalPrefs$WritePrefHandlerThread.startDelayedWrite(OneSignalPrefs.java:117)
       at com.onesignal.OneSignalPrefs.startDelayedWrite(OneSignalPrefs.java:183)
       at com.onesignal.OneSignal.setAppContext(OneSignal.java:601)
       at com.onesignal.OneSignalSyncServiceUtils.doBackgroundSync(OneSignalSyncServiceUtils.java:175)
       at com.onesignal.SyncJobService.onStartJob(SyncJobService.java:40)
       at android.app.job.JobService$1.onStartJob(JobService.java:62)
       at android.app.job.JobServiceEngine$JobHandler.handleMessage(JobServiceEngine.java:108)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:280)
       at android.app.ActivityThread.main(ActivityThread.java:6748)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

Question:

The main problem is that they tagged it as medium priority and bug exists around 3 months. Our vitals are going for a toss, just because of this issue. It's costing us a lot.

Does there exist any workaround that can temporary solve the problem?

P.S:

I'm ready to provide more related info, if required. Thanks in advance!

ANSWER

Answered 2020-Mar-06 at 09:44

It is possible(if not likely) that you have an old version of OneSignal where synchronized void startDelayedWrite() is not synchronized. In this case I would update, and see if that fixes things. If not see the following:

The exception in question occurs here:

synchronized void startDelayedWrite() {
            if (mHandler == null) {
                start();
                mHandler = new Handler(getLooper());
            }
//rest of function irrelevant.

The Javadoc for Thread.start,states the following:

It is never legal to start a thread more than once. In particular, a thread may not be restarted once it has completed execution.

From this and the implementation of Thread.start, we can infer that the thread in question is being started twice.

For this to be started twice in startDelayedWrite, new Handler(getLooper()) needs to throw an exception, otherwise we won't enter this if statement again. I don't see any way for getLooper() to throw an exception, but new Handler, certainly can if getLooper() is null.

The implementation of getLooper() is as follows:

public Looper getLooper() {
        if (!isAlive()) {
            return null;
        }
//rest omitted b/c irrelevant

The only way the thread in question could have exited is if Thread.run exited early.

The thread's run implementation looks like this:

@Override
    public void run() {
        mTid = Process.myTid();
        Looper.prepare();
        synchronized (this) {
            mLooper = Looper.myLooper();
            notifyAll();
        }
        Process.setThreadPriority(mPriority);
        onLooperPrepared();
        Looper.loop();
        mTid = -1;
    }

Looper.loop, is intended to be a semi-infinite loop which reads from a message queue.

Note the following in Looper.loop:

for (;;) {
            Message msg = queue.next(); // might block
            if (msg == null) {
                // No message indicates that the message queue is quitting.
                return;
            }

So if msg == null, then our thread exits quickly, possibly causing an exception in mHandler = new Handler(getLooper());, resulting in Thread.start being called twice.

There are other plausible explanations. For example it is possible that Looper.loop crashes at some earlier point.

To mitigate this I would add a try{} finally{} block around mHandler = new Handler(getLooper());, to handle the case where the Looper has already exited. Alternatively I may be wrong and this race condition may be caused by something completely different.

Source https://stackoverflow.com/questions/60500570

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Signal-Android

You can download it from GitHub.
You can use Signal-Android like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the Signal-Android component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .