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Merge pull request #5 from meik99/manage-student-data
implemented managing student data
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11
app/src/main/java/com/rynkbit/jku/stuka/identity/AccessControlProfile.kt
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| @@ -0,0 +1,11 @@ | ||
| package com.rynkbit.jku.stuka.identity | ||
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| import androidx.security.identity.AccessControlProfile | ||
| import androidx.security.identity.AccessControlProfileId | ||
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| class AccessControlProfile { | ||
| val accessControlProfileId = AccessControlProfileId(1) | ||
| val accessControlProfile = AccessControlProfile.Builder(accessControlProfileId) | ||
| .setUserAuthenticationRequired(false) | ||
| .build() | ||
| } |
2 changes: 1 addition & 1 deletion
2
.../stuka/AgnosticIdentityCredentialStore.kt → ...entity/AgnosticIdentityCredentialStore.kt
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40 changes: 40 additions & 0 deletions
40
app/src/main/java/com/rynkbit/jku/stuka/identity/StudentProfile.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,40 @@ | ||
| package com.rynkbit.jku.stuka.identity | ||
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| import androidx.security.identity.PersonalizationData | ||
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| const val CREDENTIAL_NAMESPACE = "STUKA" | ||
| const val CREDENTIAL_STUDENT_FIRSTNAME = "FIRSTNAME" | ||
| const val CREDENTIAL_STUDENT_LASTNAME = "LASTNAME" | ||
| const val CREDENTIAL_STUDENT_BIRTHDATE = "BIRTHDATE" | ||
| const val CREDENTIAL_STUDENT_MATRICULATION_NUMBER = "MATRICULATION_NUMBER" | ||
| const val CREDENTIAL_STUDENT_STUDY_CODE = "STUDY_CODE" | ||
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| class StudentProfile( | ||
| val firstname: String = "", | ||
| val lastname: String = "", | ||
| val birthdate: String = "", | ||
| val matriculationNumber: String = "", | ||
| val studyCode: String = "", | ||
| val studentAccessControlProfile: AccessControlProfile = AccessControlProfile(), | ||
| ) { | ||
| fun toPersonalizationData() = | ||
| PersonalizationData.Builder() | ||
| .addAccessControlProfile(studentAccessControlProfile.accessControlProfile) | ||
| .putEntry(CREDENTIAL_STUDENT_FIRSTNAME, firstname) | ||
| .putEntry(CREDENTIAL_STUDENT_LASTNAME, lastname) | ||
| .putEntry(CREDENTIAL_STUDENT_BIRTHDATE, birthdate) | ||
| .putEntry(CREDENTIAL_STUDENT_MATRICULATION_NUMBER, matriculationNumber) | ||
| .putEntry(CREDENTIAL_STUDENT_STUDY_CODE, studyCode) | ||
| .build() | ||
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| private fun PersonalizationData.Builder.putEntry( | ||
| key: String, | ||
| value: String | ||
| ): PersonalizationData.Builder = | ||
| this.putEntryString( | ||
| CREDENTIAL_NAMESPACE, | ||
| key, | ||
| listOf(studentAccessControlProfile.accessControlProfileId), | ||
| value | ||
| ) | ||
| } |
101 changes: 101 additions & 0 deletions
101
app/src/main/java/com/rynkbit/jku/stuka/identity/StudentStore.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| package com.rynkbit.jku.stuka.identity | ||
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| import android.content.Context | ||
| import androidx.security.identity.IdentityCredential | ||
| import androidx.security.identity.IdentityCredentialStore | ||
| import androidx.security.identity.ResultData | ||
| import java.lang.UnsupportedOperationException | ||
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| const val CREDENTIAL_NAME = "STUDENT" | ||
| const val DOC_TYPE = "CARD" | ||
| const val IDENTITY_FEATURE = "android.hardware.identity_credential" | ||
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| class StudentStore( | ||
| context: Context, | ||
| private val agnosticIdentityCredentialStore: AgnosticIdentityCredentialStore = AgnosticIdentityCredentialStore( | ||
| context | ||
| ) | ||
| ) { | ||
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| init { | ||
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| } | ||
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| fun store(student: StudentProfile) { | ||
| val credentialStore = agnosticIdentityCredentialStore.credentialStore | ||
| val credentials = credentialStore.getCredentialByName( | ||
| CREDENTIAL_NAME, | ||
| IdentityCredentialStore.CIPHERSUITE_ECDHE_HKDF_ECDSA_WITH_AES_256_GCM_SHA256 | ||
| ) | ||
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| if (credentials == null) { | ||
| createStudent(student) | ||
| } else { | ||
| updateStudent(student, credentials) | ||
| } | ||
| } | ||
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| fun get(): StudentProfile { | ||
| val credentialStore = agnosticIdentityCredentialStore.credentialStore | ||
| val credentials = credentialStore.getCredentialByName( | ||
| CREDENTIAL_NAME, | ||
| IdentityCredentialStore.CIPHERSUITE_ECDHE_HKDF_ECDSA_WITH_AES_256_GCM_SHA256 | ||
| ) | ||
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| if (credentials != null) { | ||
| val results = credentials.getEntries( | ||
| null, | ||
| mapOf( | ||
| Pair( | ||
| CREDENTIAL_NAMESPACE, listOf( | ||
| CREDENTIAL_STUDENT_FIRSTNAME, | ||
| CREDENTIAL_STUDENT_LASTNAME, | ||
| CREDENTIAL_STUDENT_BIRTHDATE, | ||
| CREDENTIAL_STUDENT_MATRICULATION_NUMBER, | ||
| CREDENTIAL_STUDENT_STUDY_CODE | ||
| ) | ||
| ) | ||
| ), | ||
| null | ||
| ) | ||
| return results.toStudent() | ||
| } | ||
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| return StudentProfile() | ||
| } | ||
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| private fun createStudent(student: StudentProfile) { | ||
| val credentialStore = agnosticIdentityCredentialStore.credentialStore | ||
| val credentials = credentialStore.createCredential(CREDENTIAL_NAME, DOC_TYPE) | ||
| credentials.personalize(student.toPersonalizationData()) | ||
| } | ||
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| private fun updateStudent(student: StudentProfile, credentials: IdentityCredential) { | ||
| val credentialStore = agnosticIdentityCredentialStore.credentialStore | ||
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| when { | ||
| credentialStore.capabilities.isUpdateSupported -> { | ||
| credentials.update(student.toPersonalizationData()) | ||
| } | ||
| credentialStore.capabilities.isDeleteSupported -> { | ||
| deleteStudent(credentials) | ||
| createStudent(student) | ||
| } | ||
| else -> { | ||
| throw UnsupportedOperationException() | ||
| } | ||
| } | ||
| } | ||
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| private fun deleteStudent(credentials: IdentityCredential) { | ||
| credentials.delete(ByteArray(1)) | ||
| } | ||
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| private fun ResultData.toStudent(): StudentProfile = StudentProfile( | ||
| getEntryString(CREDENTIAL_NAMESPACE, CREDENTIAL_STUDENT_FIRSTNAME) ?: "", | ||
| getEntryString(CREDENTIAL_NAMESPACE, CREDENTIAL_STUDENT_LASTNAME) ?: "", | ||
| getEntryString(CREDENTIAL_NAMESPACE, CREDENTIAL_STUDENT_BIRTHDATE) ?: "", | ||
| getEntryString(CREDENTIAL_NAMESPACE, CREDENTIAL_STUDENT_MATRICULATION_NUMBER) ?: "", | ||
| getEntryString(CREDENTIAL_NAMESPACE, CREDENTIAL_STUDENT_STUDY_CODE) ?: "" | ||
| ) | ||
| } |
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19 changes: 19 additions & 0 deletions
19
app/src/main/java/com/rynkbit/jku/stuka/ui/edit/EditDataViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,25 @@ | ||
| package com.rynkbit.jku.stuka.ui.edit | ||
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| import androidx.lifecycle.ViewModel | ||
| import com.rynkbit.jku.stuka.identity.StudentProfile | ||
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| class EditDataViewModel : ViewModel() { | ||
| var firstname: String = "" | ||
| var lastname: String = "" | ||
| var birthdate: String = "" | ||
| var matriculationNumber: String = "" | ||
| var studyCode: String = "" | ||
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| val studentProfile | ||
| get() = StudentProfile( | ||
| firstname, lastname, birthdate, matriculationNumber, studyCode | ||
| ) | ||
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| fun applyStudentProfile(studentProfile: StudentProfile) { | ||
| firstname = studentProfile.firstname | ||
| lastname = studentProfile.lastname | ||
| birthdate = studentProfile.birthdate | ||
| matriculationNumber = studentProfile.matriculationNumber | ||
| studyCode = studentProfile.studyCode | ||
| } | ||
| } |
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3 changes: 3 additions & 0 deletions
3
app/src/main/java/com/rynkbit/jku/stuka/ui/main/MainViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,9 @@ | ||
| package com.rynkbit.jku.stuka.ui.main | ||
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| import androidx.lifecycle.MutableLiveData | ||
| import androidx.lifecycle.ViewModel | ||
| import com.rynkbit.jku.stuka.identity.StudentProfile | ||
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| class MainViewModel : ViewModel() { | ||
| var student = MutableLiveData<StudentProfile>() | ||
| } |
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