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smsgcm is my little project to use gcm to sync sms messages between my pc and phone allowing me to send and receive messages from my pc

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README.md

SMSGCM

This is just a quick little thing based off of Google's GCM Demo application.

Apache License included in their demo application:

What is this?

This is a stupid project I started so that one day I would be able to send and receive text messages from inside bitlbee. The first step was to create an application on the phone to send incoming text messages to the clients and to gather messages sent from the clients and send them over the air to my SMS recipients. There are other tools in existence that do this already.

Things that make this unique are that I use Google Cloud Messaging to notify the phone of messages to be sent. Also, user accounts are handled by SSL certificates and revocation lists. This way, I don't have to deal with any authentication stuff.

How do I install?

The most important thing is creating your SSL client certificate. I am the CA for my server, so if you want to compile and use this app, you must first send me your csr. Otherwise, this is useless unless you implement your own server.

Set Up PKCS12 Keystore

Download a copy of my CA certificate:

wget http://omgren.com/ca.crt

Next step is to create your private key and certificate signing request. This can be done in one command:

openssl req -new -newkey rsa:2048 -nodes \
    -keyout key.pem -out csr.pem

Then send me your csr.pem, be sure to use your correct email. After I mail you back your certificate, eg cert.pem, you can then create the p12 file:

openssl pkcs12 -export -out my.p12 \
    -inkey key.pem -in cert.pem \
    -certfile ca.crt -caname "omgren.com CA"

Remember your password as you will need it.

Compiling

APIs 10 and 17 are required, as is the GCM API and Android Support Library. I think that is it. You should then be able to install the app onto your phone with ant debug install.

Running

Copy the .p12 keystore you created onto your phone. It must be on Download on your sdcard and must be named smsgcm.p12. You can do this with adb:

adb push my.p12 /mnt/sdcard/Download/smsgcm.p12

Then in the application, go to Settings and input the passphrase you used when creating the keystore.

Now go to Import to move the key into your app's private storage.

Now go to Register and see the app connect to the server.

Where is the server?

This app requires a server to be the central hub of all the clients. It is a Tomcat web application and it can be found here.

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