what if other user has put a paid user's email and start using my app?
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B4A Library Licensing library
- Thread starter Erel
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i was working full time.
Which might be illegal. At least here in Sweden, it's illegal (with exceptions mainly for government organizations) to store digitally personal information without their consent.
For some reason, however, it's perfectly OK to write it down on a piece of paper (another odd effect of this law is that, legally, a fax send from a computer is under completely different laws than a fax sent by a "paper scan fax")...
This one won't be catched. But how many users do share their Google's account ?
Well, then I say: Make it reasonably hard. You don't need to make a Fort Knox security, just hard enough for the typical user to don't bother. Also, remember, the people who rather spend a weekend hacking your app than paying a few $, do you think they would have bought it if they couldn't hack it?
So, your work protecting your app may very well be useless, from an economical viewpoint. You'll just block those who won't pay anyway. Consider cost/benefit.
I never care about what is legal or not if it is a way for me to protect my customers ! Storing an email address is subject (in France) of a "users database declaration" only. And if you want to be really fair : update your privacy policies or add an option for the user to share his taste via email (so nobody will never ask you why you are catching Google's account). But that's only a suggestion of course. You are free to do what you want
Well, I won't say that I do share my account within the family, but I won't say I don't either.
Sharing with untrusted people? Never.
maybe for their friends.
Of course, it was just a small reminder to check local law, to avoid trouble.I never care about what is legal or not if it is a way for me to protect my customers ! Storing an email address is subject (in France) of a "users database declaration" only. And if you want to be really fair : update your privacy policies or add an option for the user to share his taste via email (so nobody will never ask you why you are catching Google's account). But that's only a suggestion of course. You are free to do what you want
You don't need a licensing library anymore, just set your minimum API to 16+
89% of devices that use google play currently are on API 16+ (jellybean)
https://developer.android.com/about/dashboards/index.html
https://developer.android.com/about/dashboards/index.html
Sorry, is this what I need to change in the manifest? Is this the correct setting?
AddManifestText(
<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="16"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE"/>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-permission android:name="android.permission.READ_SMS"/>
<uses-permission android:name="android.permission.RECIEVE_SMS"/>
)
AddManifestText(
<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="16"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE"/>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-permission android:name="android.permission.READ_SMS"/>
<uses-permission android:name="android.permission.RECIEVE_SMS"/>
)
No your minimum SDK should be 16
<uses-sdk android:minSdkVersion="16" android:targetSdkVersion="20"/>
Here's the google document concerning this:
https://support.google.com/googleplay/android-developer/answer/186113?hl=en
Hello Erel,
first of all thanx a lot for this lib and your tireless work/support.
I would ask you a little modification to the lib: I think the generated Java object derived from the b4a LicenseChecker object (I mean the one present in the Java source code folder resulting from compilation) should be named to something "more obscure" like LC or even a misleading name like LHelper or similar...
...this way the Java code could be more secure even if decompiled, while now the name LicenseChecker is easily findable and recognized in relation to a paid app license control (even if we use obfuscation its name remains in plain text).
regards
Francesco
first of all thanx a lot for this lib and your tireless work/support.
I would ask you a little modification to the lib: I think the generated Java object derived from the b4a LicenseChecker object (I mean the one present in the Java source code folder resulting from compilation) should be named to something "more obscure" like LC or even a misleading name like LHelper or similar...
...this way the Java code could be more secure even if decompiled, while now the name LicenseChecker is easily findable and recognized in relation to a paid app license control (even if we use obfuscation its name remains in plain text).
regards
Francesco
Hi
Does this library can use in B4J ?
Does this library can use in B4J ?
No.Hi
Does this library can use in B4J ?
