I need to create a protocol (an API) to send data (encrypted) from my php server (my web site) to a specific Android phone. Or send data from Android phone to my php server. I need both methods. Data security is essential.
(by clicking in a button on web site or by clicking in a button in my Android phone)
I have searched here but i only see questions about sending data without concern of security.
Can anyone explain me how to do that?
I do pretend to know:
how to discover my Android phone in php side?
how can I send data from php to Android?
how can I send data from Android to php?
how can I use a secure connection?
how can I encrypt and decrypt my data?
Edited:
My urgente problem is: how to get data from php (safely) in android side? Give me an example...
Thanks
To communicate securely between an Android device and a PHP server I would use HTTPS. This article on the Android Developer site will help with your research in that department:
http://developer.android.com/training/articles/security-ssl.html
Using HTTPS will preclude you having to develop your own protocol.
Answering your bullet points:
You'd need to either set up a web server on the Android device so the PHP app can contact it, or have the Android device periodically call home to the PHP app. The second option is much, much more straightforward.
HTTPS
HTTPS
HTTPS
This is built into SSL / TLS / HTTPS, you won't need to handle it.
I hope that helps :-)
Related
I need to make chat application for android. I thought of using PHP script to implement the chat application. Basic idea is to send message form android client to PHP script and making use of PHP script send the messages to the MySQL database. These messages will be broadcasting to other people. But the problem is auto broadcasting messages to other people. Is there a way to do this using android and php?
You can do the following
Make a persistent tcp connection between your device and the PHP server
When a message is broadcast send it over the tcp connection of each device
On the device process this notification and you are good to go.
If you want to use Java on the server side I have your project already finished and ready to ship ;) (just kidding)
But if you are interested check out the Device-To-Device messaging framework of OpenMobster Mobile Cloud platform. The project is free and open source. Here is a link to the Device-To-Device Framework: http://code.google.com/p/openmobster/wiki/D2DPushFramework
and http://code.google.com/p/openmobster/wiki/PushFramework
The above three steps are already taken care of by the framework. The developer just has to focus on the App itself
Good Luck!!!!
Yes there is several ways to do this
you can just post to the server and from the server send push notifications to the mobiles
You can make the mobile keep checking for updates if it exists
You will require to finish these steps ( at least ):
setup a PHP web server
register for Android Push Notification (you probably need that)
create database schema
write your own codes to allow users to submit & retrieve chat messages
security !!!
You'd probably want to use Google's C2DM, though it's not free.
Your php server would get a message from a phone, do it's processing, then make a HTTPS request to Google's C2DM service, which sends the messages to the destination android device.
http://code.google.com/android/c2dm/#push-process
Don't use C2DM, its a deprecated. Please go through the GCM(Global Cloud Messaging),
please follow this link,
http://developer.android.com/google/gcm
Have you heard of Firebase? Firebase. Making a chat app with Firebase is like eating pizza.
I'm trying to write the server side of my android app that uses C2DM. I'm going to write it in php. I basically am just doing tests right now. I copied the chrome to phone example for the actual android app and modified it to my liking. Right now my biggest question is the registration.
Let me get everything straightened out.
When registering the device for the first time, the app talks directly to my server. The server grabs the deviceid and responds back with a 200. Right?
So, on the php side of things, I grab the device id like $deviceid = $_POST['deviceId'] Right?
add it to my database. then respond back to the app.. How exactly do I send a particular response back? I assume in the header? I'm unsure how to do that.
Please confirm or deny that I'm on the right track and clear up any confusion.
Thanks for the help.
You don't respond back to the app. You must register your server with google's servers to get a server authentication token. You then use that server token and the device token in a post request to google's C2DM service to have google's servers send a push notification to the phone. Your app and your server never directly communicate when a push notification is sent in C2DM, it is all done through google, yet you need to implement a mechanism for your server to know the device id of the device it wants to send a message to.
This is a pretty detailed guide, though the server code is in Java:
www.vogella.de/articles/AndroidCloudToDeviceMessaging/article.html
Make sure you have really gotten the IDs before sending to the server. If you are using an emulator for testing, you could do an echo over at the php script so the message will appear in your logcat.
Google refreshes expired registration IDs so your application should be able to pick up new notifications/ids from google and handle the message by sending to the database.
Ok, so I am very new to android but I have some experience with PHP. I have a website for my college festival where there is a login system and registered users can take the quiz everything.( I am using Codeigniter as my PHP framework
Now I have been asked to make an android app for the festival. So , my question is , How do I connect my android application to the stuff on my website.
For example: I have a login system on my website and I want to reflect the same functionality in my android app i.e How to send the username and password to be authenticated and how the request will be processed on the server side? How do I connect my android application to my database ?
Can anyone please point me in the right direction. Thank you very much.
P.S : Yes, I get that I can very easily just make a mobile version of the website as suggested by many people. But since I want to learn Android, I think this would be a good opportunity for me to do so.
You may write a service using PHP which takes required parameters and responds with JSON Object response. In your app you can use HTTPClient and JSonObject to parse the response and populate the app. Here is a sample on how to do Android PHP MySQL example
If you don't need native mobile APP, then as other members suggested, you may add mobile css to your existing site.
I'm starting a new application that will have a server side PHP and client in Android another (at the moment, and then also probably iphone). The application will only be used from mobile customer applications ie not to be used by web. My question is what would be the best way to login to this mode of operation?
thank you very much
It sounds to me as if the server side will be some sort of API that opens up access to a users data. The easiest method would be sending along a stored username and password with each request. This would only work if the connection your using is secure (https) which brings in the hassle of obtaining an ssl certificate.
Another option would be using OAuth, though your use case seems a little bit different than the standard OAuth use-case. OAuth is a protocol that uses a token based system to establish a users permission to access certain data from an application by another application. In your case you would be in control of both the first and the second application (hence my remark on being different than the standard use-case) Read here for more info.
I think it will be more easier if you use a webservice to make this connection between android and php server
this Presentation may help you ..
you are gonna deal with SOAP and xml or JSON to send data from android to php server.
and this a Video that shows how to deal with REST android Apps.
hope that help.
I think building an API on the server-side would be the best approach. For example a simple REST endpoint might be the way to go.
You can also host the API over HTTPS so that the communications channel is secure.
you need to create PHP web service for that. and while accessing you can pass security key like IMEI of phone for log. I think it can be secured mode for login from Android Phone.
Best practice these days is to set up a simple JSON web service, and use the built in Android HTTP & JSON libraries to interact with this service.
Create a login page in android, take the values from the fields send those values to server using httppost there store in your database and send response from the server
i think you first make a login form on Php server and send it the login and password as soon as user types and php returns the JSON object then read it if login is accepted by server login to application.
another way is when user don't have the net access make some Content providers on android and store the user pass there and match from there locally.
I want to transfer 10 user details from my server database to another server.The other server can call a php page (in my sever) which can supply the needed 10 user details.This should happen in such a way that a user using the site must not understand that the data is coming from another server.
I will recommend using WebService for this purpose. In the Server A (provider) you will code this webservice to serve the users as requested by server B(consumer), So you will be able to consume the services provided by A at any time and being transparent for the USER.
References:
WebService
XML-RPC
SOAP
You can implement JSON-RPC server and client.