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-rw-r--r--merchant-lib/src/main/AndroidManifest.xml23
-rw-r--r--merchant-lib/src/main/java/net/taler/merchantlib/ConfigResponse.kt34
-rw-r--r--merchant-lib/src/main/java/net/taler/merchantlib/MerchantApi.kt43
-rw-r--r--merchant-lib/src/test/java/net/taler/merchantlib/MerchantApiTest.kt43
-rw-r--r--merchant-lib/src/test/java/net/taler/merchantlib/MockHttpClient.kt58
5 files changed, 201 insertions, 0 deletions
diff --git a/merchant-lib/src/main/AndroidManifest.xml b/merchant-lib/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..7318c07
--- /dev/null
+++ b/merchant-lib/src/main/AndroidManifest.xml
@@ -0,0 +1,23 @@
+<!--
+ ~ This file is part of GNU Taler
+ ~ (C) 2020 Taler Systems S.A.
+ ~
+ ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+ ~ terms of the GNU General Public License as published by the Free Software
+ ~ Foundation; either version 3, or (at your option) any later version.
+ ~
+ ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ ~ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ ~
+ ~ You should have received a copy of the GNU General Public License along with
+ ~ GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="net.taler.merchantlib">
+
+ <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+ <uses-permission android:name="android.permission.INTERNET" />
+
+</manifest>
diff --git a/merchant-lib/src/main/java/net/taler/merchantlib/ConfigResponse.kt b/merchant-lib/src/main/java/net/taler/merchantlib/ConfigResponse.kt
new file mode 100644
index 0000000..49164e6
--- /dev/null
+++ b/merchant-lib/src/main/java/net/taler/merchantlib/ConfigResponse.kt
@@ -0,0 +1,34 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantlib
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ConfigResponse(
+ /**
+ * libtool-style representation of the Merchant protocol version, see
+ * https://www.gnu.org/software/libtool/manual/html_node/Versioning.html#Versioning
+ * The format is "current:revision:age".
+ */
+ val version: String,
+
+ /**
+ Currency supported by this backend.
+ */
+ val currency: String
+)
diff --git a/merchant-lib/src/main/java/net/taler/merchantlib/MerchantApi.kt b/merchant-lib/src/main/java/net/taler/merchantlib/MerchantApi.kt
new file mode 100644
index 0000000..656b093
--- /dev/null
+++ b/merchant-lib/src/main/java/net/taler/merchantlib/MerchantApi.kt
@@ -0,0 +1,43 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantlib
+
+import io.ktor.client.HttpClient
+import io.ktor.client.engine.okhttp.OkHttp
+import io.ktor.client.features.json.JsonFeature
+import io.ktor.client.features.json.serializer.KotlinxSerializer
+import io.ktor.client.request.get
+import io.ktor.client.request.header
+import io.ktor.http.HttpHeaders.Authorization
+
+class MerchantApi(private val httpClient: HttpClient) {
+
+ constructor() : this(getDefaultHttpClient())
+
+ suspend fun getConfig(baseUrl: String, apiKey: String = "sandbox"): ConfigResponse {
+ return httpClient.get("$baseUrl/config") {
+ header(Authorization, "ApiKey $apiKey")
+ }
+ }
+
+}
+
+private fun getDefaultHttpClient(): HttpClient = HttpClient(OkHttp) {
+ install(JsonFeature) {
+ serializer = KotlinxSerializer()
+ }
+}
diff --git a/merchant-lib/src/test/java/net/taler/merchantlib/MerchantApiTest.kt b/merchant-lib/src/test/java/net/taler/merchantlib/MerchantApiTest.kt
new file mode 100644
index 0000000..6b2199b
--- /dev/null
+++ b/merchant-lib/src/test/java/net/taler/merchantlib/MerchantApiTest.kt
@@ -0,0 +1,43 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantlib
+
+import kotlinx.coroutines.runBlocking
+import net.taler.merchantlib.MockHttpClient.giveJsonResponse
+import net.taler.merchantlib.MockHttpClient.httpClient
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class MerchantApiTest {
+
+ private val api = MerchantApi(httpClient)
+
+ @Test
+ fun testGetConfig() = runBlocking {
+ httpClient.giveJsonResponse("https://backend.int.taler.net/config") {
+ """
+ {
+ "currency": "INTKUDOS",
+ "version": "0:0:0"
+ }
+ """.trimIndent()
+ }
+ val response = api.getConfig("https://backend.int.taler.net")
+ assertEquals(ConfigResponse("0:0:0", "INTKUDOS"), response)
+ }
+
+}
diff --git a/merchant-lib/src/test/java/net/taler/merchantlib/MockHttpClient.kt b/merchant-lib/src/test/java/net/taler/merchantlib/MockHttpClient.kt
new file mode 100644
index 0000000..076b77e
--- /dev/null
+++ b/merchant-lib/src/test/java/net/taler/merchantlib/MockHttpClient.kt
@@ -0,0 +1,58 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantlib
+
+import io.ktor.client.HttpClient
+import io.ktor.client.engine.mock.MockEngine
+import io.ktor.client.engine.mock.MockEngineConfig
+import io.ktor.client.engine.mock.respond
+import io.ktor.client.features.json.JsonFeature
+import io.ktor.client.features.json.serializer.KotlinxSerializer
+import io.ktor.http.ContentType.Application.Json
+import io.ktor.http.Url
+import io.ktor.http.fullPath
+import io.ktor.http.headersOf
+import io.ktor.http.hostWithPort
+
+object MockHttpClient {
+
+ val httpClient = HttpClient(MockEngine) {
+ install(JsonFeature) {
+ serializer = KotlinxSerializer()
+ }
+ engine {
+ addHandler { error("No response handler set") }
+ }
+ }
+
+ fun HttpClient.giveJsonResponse(url: String, jsonProducer: () -> String) {
+ val httpConfig = engineConfig as MockEngineConfig
+ httpConfig.requestHandlers.removeAt(0)
+ httpConfig.requestHandlers.add { request ->
+ if (request.url.fullUrl == url) {
+ val headers = headersOf("Content-Type" to listOf(Json.toString()))
+ respond(jsonProducer(), headers = headers)
+ } else {
+ error("Unexpected URL: ${request.url.fullUrl}")
+ }
+ }
+ }
+
+ private val Url.hostWithPortIfRequired: String get() = if (port == protocol.defaultPort) host else hostWithPort
+ private val Url.fullUrl: String get() = "${protocol.name}://$hostWithPortIfRequired$fullPath"
+
+}