Add fingerprint (#400)

* Track document image origin * Update test * Add fingerprint * Use default empty string instead of lateinit var * Update test
smileidentity · Jul 3, 2024 · cdd855d · cdd855d
1 parent b31aa56
commit cdd855d
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Showing 5 changed files with 22 additions and 1 deletion.
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -20,6 +20,7 @@ coil = "2.6.0"
 compose-lint-checks = "1.3.1"
 coroutines = "1.8.1"
 datastore = "1.1.1"
+fingerprint-js = "2.1.0"
 junit = "4.13.2"
 kotlin = "2.0.0"
 kotlin-immutable-collections = "0.3.7"
@@ -90,6 +91,7 @@ compose-lint-checks = { module = "com.slack.lint.compose:compose-lint-checks", v
 coroutines-core = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core", version.ref = "coroutines" }
 coroutines-test = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-test", version.ref = "coroutines" }
 datastore = { module = "androidx.datastore:datastore-preferences", version.ref = "datastore" }
+fingerprint-js = { module = "com.github.fingerprintjs:fingerprint-android", version.ref = "fingerprint-js" }
 junit = { module = "junit:junit", version.ref = "junit" }
 kotlin-immutable-collections = { module = "org.jetbrains.kotlinx:kotlinx-collections-immutable", version.ref = "kotlin-immutable-collections" }
 leakcanary = { module = "com.squareup.leakcanary:leakcanary-android", version.ref = "leakcanary" }

diff --git a/lib/lib.gradle.kts b/lib/lib.gradle.kts
@@ -221,6 +221,8 @@ dependencies {
     testImplementation(libs.mockk)
     androidTestImplementation(libs.mockk.android)
 
+    implementation(libs.fingerprint.js)
+
     androidTestImplementation(libs.androidx.test.core)
     androidTestImplementation(libs.androidx.test.rules)
     androidTestImplementation(libs.androidx.test.junit)

diff --git a/lib/src/main/java/com/smileidentity/SmileID.kt b/lib/src/main/java/com/smileidentity/SmileID.kt
@@ -3,6 +3,8 @@ package com.smileidentity
 import android.content.Context
 import android.content.Context.MODE_PRIVATE
 import android.content.pm.ApplicationInfo.FLAG_DEBUGGABLE
+import com.fingerprintjs.android.fingerprint.Fingerprinter
+import com.fingerprintjs.android.fingerprint.FingerprinterFactory
 import com.google.android.gms.common.moduleinstall.ModuleInstall
 import com.google.android.gms.common.moduleinstall.ModuleInstallRequest
 import com.google.mlkit.common.sdkinternal.MlKitContext
@@ -85,6 +87,7 @@ object SmileID {
     internal var apiKey: String? = null
 
     internal lateinit var fileSavePath: String
+    internal var fingerprint = ""
 
     /**
      * Initialize the SDK. This must be called before any other SDK methods.
@@ -137,6 +140,10 @@ object SmileID {
 
         // Usually looks like: /data/user/0/<package name>/app_SmileID
         fileSavePath = context.getDir("SmileID", MODE_PRIVATE).absolutePath
+        FingerprinterFactory.create(context).getFingerprint(version = Fingerprinter.Version.V_5) {
+            // Returns empty string if there was an error
+            fingerprint = it
+        }
     }
 
     /**

diff --git a/lib/src/main/java/com/smileidentity/models/v2/Metadata.kt b/lib/src/main/java/com/smileidentity/models/v2/Metadata.kt
@@ -2,6 +2,7 @@ package com.smileidentity.models.v2
 
 import android.os.Parcelable
 import com.smileidentity.BuildConfig
+import com.smileidentity.SmileID
 import com.squareup.moshi.Json
 import com.squareup.moshi.JsonClass
 import dev.zacsweers.moshix.sealed.annotations.TypeLabel
@@ -14,7 +15,9 @@ import kotlinx.parcelize.Parcelize
 @Parcelize
 data class Metadata(val items: List<Metadatum>) : Parcelable {
     companion object {
-        fun default(): Metadata = Metadata(listOf(Metadatum.Sdk, Metadatum.SdkVersion))
+        fun default(): Metadata = Metadata(
+            listOf(Metadatum.Sdk, Metadatum.SdkVersion, Metadatum.Fingerprint),
+        )
     }
 }
 
@@ -34,6 +37,10 @@ sealed class Metadatum(
     @TypeLabel(label = "sdk_version")
     data object SdkVersion : Metadatum(BuildConfig.VERSION_NAME)
 
+    @Parcelize
+    @TypeLabel(label = "fingerprint")
+    data object Fingerprint : Metadatum(SmileID.fingerprint)
+
     @Parcelize
     @TypeLabel(label = "document_front_image_origin")
     data class DocumentFrontImageOrigin(val origin: DocumentImageOriginValue) :

diff --git a/settings.gradle.kts b/settings.gradle.kts
@@ -19,5 +19,8 @@ dependencyResolutionManagement {
     repositories {
         google()
         mavenCentral()
+        // TODO: Remove once https://github.com/fingerprintjs/fingerprintjs-android/issues/76 is
+        //  resolved
+        maven("https://jitpack.io")
     }
 }