Add libs:sftp

sftp implementation using libssh2 and openssl

8 files changed, 277 insertions, 0 deletions

diff --git a/libs/sftp/src/test/docker/docker-compose.yml b/libs/sftp/src/test/docker/docker-compose.yml
new file mode 100644
index 0000000..973a942
--- /dev/null
+++ b/libs/sftp/src/test/docker/docker-compose.yml
@@ -0,0 +1,12 @@
+services:
+  sftp:
+    image: atmoz/sftp:debian
+    restart: always
+    command: user:notverysecret:1000
+    volumes:
+      - ./ssh_host_ed25519_key:/etc/ssh/ssh_host_ed25519_key
+      - ./ssh_host_rsa_key:/etc/ssh/ssh_host_rsa_key
+      - ./user_public.pub:/home/user/.ssh/keys/id_rsa.pub:ro
+      - ../../../build/test-share:/home/user/share
+    ports:
+      - "127.0.0.1:10022:22"
diff --git a/libs/sftp/src/test/docker/ssh_host_ed25519_key b/libs/sftp/src/test/docker/ssh_host_ed25519_key
new file mode 100644
index 0000000..8cb5247
--- /dev/null
+++ b/libs/sftp/src/test/docker/ssh_host_ed25519_key
@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACC6aVbkT4F5PcnnVmCfdhyrrfOA+H6qpfcZRJDdZLqnJQAAAJBQNbBOUDWw
+TgAAAAtzc2gtZWQyNTUxOQAAACC6aVbkT4F5PcnnVmCfdhyrrfOA+H6qpfcZRJDdZLqnJQ
+AAAEDE99B9qMrmtNYkRaAy3nvXE82OG3MqIuElVoeXfLqz2rppVuRPgXk9yedWYJ92HKut
+84D4fqql9xlEkN1kuqclAAAADXRoZV9qa0B3aWxsb3c=
+-----END OPENSSH PRIVATE KEY-----
diff --git a/libs/sftp/src/test/docker/ssh_host_ed25519_key.pub b/libs/sftp/src/test/docker/ssh_host_ed25519_key.pub
new file mode 100644
index 0000000..936d72b
--- /dev/null
+++ b/libs/sftp/src/test/docker/ssh_host_ed25519_key.pub
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILppVuRPgXk9yedWYJ92HKut84D4fqql9xlEkN1kuqcl the_jk@willow
diff --git a/libs/sftp/src/test/docker/ssh_host_rsa_key b/libs/sftp/src/test/docker/ssh_host_rsa_key
new file mode 100644
index 0000000..4055a8a
--- /dev/null
+++ b/libs/sftp/src/test/docker/ssh_host_rsa_key
@@ -0,0 +1,49 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAACFwAAAAdzc2gtcn
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+GgEdFtLY998AAAANdGhlX2prQHdpbGxvdwECAwQFBg==
+-----END OPENSSH PRIVATE KEY-----
diff --git a/libs/sftp/src/test/docker/ssh_host_rsa_key.pub b/libs/sftp/src/test/docker/ssh_host_rsa_key.pub
new file mode 100644
index 0000000..d53338e
--- /dev/null
+++ b/libs/sftp/src/test/docker/ssh_host_rsa_key.pub
@@ -0,0 +1 @@
+ssh-rsa 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 the_jk@willow
diff --git a/libs/sftp/src/test/docker/user_private.pem b/libs/sftp/src/test/docker/user_private.pem
new file mode 100644
index 0000000..327db4b
--- /dev/null
+++ b/libs/sftp/src/test/docker/user_private.pem
@@ -0,0 +1,30 @@
+-----BEGIN ENCRYPTED PRIVATE KEY-----
+MIIFJDBWBgkqhkiG9w0BBQ0wSTAxBgkqhkiG9w0BBQwwJAQQfvtNRgdziQX01T8h
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+5Z/CIiawNGziWe+pqv2VlHnL2JtP+81o
+-----END ENCRYPTED PRIVATE KEY-----
diff --git a/libs/sftp/src/test/docker/user_public.pem b/libs/sftp/src/test/docker/user_public.pem
new file mode 100644
index 0000000..f0812d9
--- /dev/null
+++ b/libs/sftp/src/test/docker/user_public.pem
@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4/t3pxBvR68V27NiEp76
+pKxlQWchdyScphxK0pC6sH9goQNOa8YH9pZjQ4ltrTiG4DkeAPG6THjT9sxq6VM7
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+ewIDAQAB
+-----END PUBLIC KEY-----
diff --git a/libs/sftp/src/test/java/org/the_jk/cleversync/sftp/SftpTreeTest.kt b/libs/sftp/src/test/java/org/the_jk/cleversync/sftp/SftpTreeTest.kt
new file mode 100644
index 0000000..60b25f2
--- /dev/null
+++ b/libs/sftp/src/test/java/org/the_jk/cleversync/sftp/SftpTreeTest.kt
@@ -0,0 +1,168 @@
+package org.the_jk.cleversync.sftp
+
+import android.content.Context
+import androidx.test.core.app.ApplicationProvider
+import com.google.common.truth.Truth.assertThat
+import org.junit.After
+import org.junit.AfterClass
+import org.junit.Before
+import org.junit.BeforeClass
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.annotation.Config
+import org.robolectric.shadows.ShadowLooper
+import org.the_jk.cleversync.TreeAbstractTest
+import org.the_jk.cleversync.io.Link
+import org.the_jk.cleversync.io.sftp.SftpCredentials
+import java.io.File
+import java.nio.charset.StandardCharsets
+import java.nio.file.Files
+import java.util.concurrent.TimeUnit
+
+@Config(manifest=Config.NONE)
+@RunWith(RobolectricTestRunner::class)
+class SftpTreeTest : TreeAbstractTest() {
+    @Before
+    fun setUpTest() {
+        assertThat(shareDir.listFiles()).isEmpty()
+
+        val credentials = SftpCredentials.SftpPasswordCredentials("user", "notverysecret")
+
+        tree = SftpTreeFactory.modifiableTree(uri, credentials).getOrThrow()
+    }
+
+    @After
+    fun tearDownTest() {
+        tree.close()
+
+        for (file in shareDir.listFiles()!!) {
+            if (file.isDirectory) {
+                file.deleteRecursively()
+            } else {
+                file.delete()
+            }
+        }
+    }
+
+    @Test
+    fun description() {
+        val resources = ApplicationProvider.getApplicationContext<Context>().resources
+        assertThat(tree.description(resources).toString()).contains(uri)
+    }
+
+    @Test
+    fun listRootWithSymlink() {
+        File(shareDir, "dir").mkdir()
+        File(shareDir, "file").writeText("foo")
+        Files.createSymbolicLink(File(shareDir, "link").toPath(), File("file").toPath())
+
+        val content = tree.list()
+
+        assertThat(content.directories).hasSize(1)
+        assertThat(content.directories[0].name).isEqualTo("dir")
+        assertThat(content.files).hasSize(1)
+        assertThat(content.files[0].name).isEqualTo("file")
+        assertThat(content.files[0].size).isEqualTo(3UL)
+        assertThat(content.links).hasSize(1)
+        assertThat(content.links[0].name).isEqualTo("link")
+        val target = content.links[0].resolve()
+        assertThat(
+            when (target) {
+                is Link.DirectoryTarget -> null
+                Link.NoTarget -> null
+                is Link.FileTarget -> target.file
+            },
+        ).isEqualTo(content.files[0])
+    }
+
+    @Test
+    fun readExistingFile() {
+        File(shareDir, "file").writeText("hello world")
+
+        val file = tree.openFile("file")
+        assertThat(file?.name).isEqualTo("file")
+        assertThat(file?.size).isEqualTo(11UL)
+
+        file?.read().use { input ->
+            assertThat(input?.readAllBytes()?.toString(StandardCharsets.UTF_8)).isEqualTo("hello world")
+        }
+
+        file?.read().use { input ->
+            val buffer = ByteArray(10)
+            assertThat(input?.read(buffer, 5, 5)).isEqualTo(5)
+            assertThat(buffer.sliceArray(5..<10).toString(StandardCharsets.UTF_8)).isEqualTo("hello")
+            assertThat(input?.read(buffer)).isEqualTo(6)
+            assertThat(buffer.sliceArray(0..<6).toString(StandardCharsets.UTF_8)).isEqualTo(" world")
+        }
+    }
+
+    @Test
+    override fun createFile() {
+        super.createFile()
+
+        assertThat(File(shareDir, "foo").readBytes()).isEqualTo(byteArrayOf(1, 2, 3, 4))
+    }
+
+    @Test
+    override fun overwriteFile() {
+        super.overwriteFile()
+
+        assertThat(File(shareDir, "foo").readBytes()).isEqualTo(byteArrayOf(127, 1))
+    }
+
+    @Test
+    override fun createDirectory() {
+        super.createDirectory()
+
+        assertThat(File(shareDir, "foo").isDirectory).isTrue()
+    }
+
+    @Test(timeout = 10000)
+    override fun observeCreateDirectory() {
+        super.observeCreateDirectory()
+
+        assertThat(File(shareDir, "foo").isDirectory).isTrue()
+    }
+
+    override fun supportSymlinks() = true
+
+    override fun idle() {
+        ShadowLooper.idleMainLooper(10, TimeUnit.SECONDS)
+    }
+
+    companion object {
+        private lateinit var uri: String
+        private lateinit var dockerDir: File
+        private lateinit var shareDir: File
+        private var dockerRunning = false
+
+        @BeforeClass
+        @JvmStatic
+        fun setUpClass() {
+            uri = "ssh://127.0.0.1:10022/share"
+            dockerDir = File(System.getProperty("dockerDir")!!)
+            shareDir = File(System.getProperty("shareDir")!!)
+            shareDir.deleteRecursively()
+            shareDir.mkdirs()
+
+            val pb = ProcessBuilder("docker", "compose", "up", "--wait", "--wait-timeout", "60")
+            pb.directory(dockerDir)
+            val exitCode = pb.start().waitFor()
+            assertThat(exitCode).isEqualTo(0)
+            dockerRunning = true
+        }
+
+        @AfterClass
+        @JvmStatic
+        fun tearDownClass() {
+            if (dockerRunning) {
+                val pb = ProcessBuilder("docker", "compose", "down")
+                pb.directory(dockerDir)
+                pb.start().waitFor()
+                dockerRunning = false
+            }
+            shareDir.deleteRecursively()
+        }
+    }
+}