From 7e04941bccb2683f8a6e3ee38a99c50129234dd1 Mon Sep 17 00:00:00 2001 From: Lena Date: Thu, 1 Jan 2026 00:00:00 +0000 Subject: rsend: push phone folders to a home SSH host over rsync A small Android app for one-way folder backup, a KISS alternative to Syncthing. It bundles rsync (built from pinned source via the NDK) and a pure-Go SSH transport, both shipped in the APK as lib*.so and run from the native library directory. rsend pins the host key, stores the ed25519 identity Keystore-encrypted, pushes each folder additively or as a mirror, and runs on demand or on a WiFi-only schedule. The build is self-contained and reproducible: make setup provisions the toolchain, make builds rsync, rsh, and the APK. --- .gitignore | 22 + LICENSE | 674 +++++++++++++++++++++ Makefile | 41 ++ README | 122 ++++ app/build.gradle | 88 +++ app/src/main/AndroidManifest.xml | 62 ++ app/src/main/java/invalid/lena/rsend/App.kt | 22 + .../main/java/invalid/lena/rsend/BootReceiver.kt | 15 + app/src/main/java/invalid/lena/rsend/Config.kt | 107 ++++ .../java/invalid/lena/rsend/FolderEditActivity.kt | 77 +++ app/src/main/java/invalid/lena/rsend/Insets.kt | 34 ++ app/src/main/java/invalid/lena/rsend/KeyVault.kt | 48 ++ app/src/main/java/invalid/lena/rsend/Keys.kt | 75 +++ app/src/main/java/invalid/lena/rsend/LastSync.kt | 21 + .../main/java/invalid/lena/rsend/LogActivity.kt | 35 ++ .../main/java/invalid/lena/rsend/MainActivity.kt | 338 +++++++++++ app/src/main/java/invalid/lena/rsend/Native.kt | 26 + .../main/java/invalid/lena/rsend/RemoteActivity.kt | 82 +++ .../main/java/invalid/lena/rsend/RsyncRunner.kt | 47 ++ .../java/invalid/lena/rsend/ScheduleActivity.kt | 51 ++ app/src/main/java/invalid/lena/rsend/Scheduler.kt | 71 +++ app/src/main/java/invalid/lena/rsend/SyncLog.kt | 26 + app/src/main/java/invalid/lena/rsend/SyncWorker.kt | 103 ++++ app/src/main/res/drawable/bg_button_primary.xml | 10 + app/src/main/res/drawable/bg_button_secondary.xml | 13 + app/src/main/res/drawable/bg_card.xml | 9 + app/src/main/res/drawable/bg_chip.xml | 6 + app/src/main/res/drawable/bg_input.xml | 21 + app/src/main/res/drawable/dot_off.xml | 11 + app/src/main/res/drawable/dot_on.xml | 8 + app/src/main/res/drawable/ic_chevron.xml | 9 + app/src/main/res/drawable/ic_folder.xml | 9 + app/src/main/res/drawable/ic_key.xml | 9 + .../main/res/drawable/ic_launcher_background.xml | 9 + .../main/res/drawable/ic_launcher_foreground.xml | 14 + app/src/main/res/drawable/ic_notification.xml | 10 + app/src/main/res/drawable/ic_remote.xml | 9 + app/src/main/res/drawable/ic_schedule.xml | 12 + app/src/main/res/layout/activity_folder.xml | 123 ++++ app/src/main/res/layout/activity_log.xml | 56 ++ app/src/main/res/layout/activity_main.xml | 413 +++++++++++++ app/src/main/res/layout/activity_remote.xml | 107 ++++ app/src/main/res/layout/activity_schedule.xml | 75 +++ app/src/main/res/layout/app_toolbar.xml | 11 + app/src/main/res/layout/dialog_key.xml | 40 ++ app/src/main/res/layout/item_folder.xml | 48 ++ app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml | 6 + app/src/main/res/values-night/colors.xml | 18 + app/src/main/res/values/colors.xml | 20 + app/src/main/res/values/dimens.xml | 13 + app/src/main/res/values/strings.xml | 3 + app/src/main/res/values/themes.xml | 103 ++++ app/src/test/java/invalid/lena/rsend/ConfigTest.kt | 26 + .../java/invalid/lena/rsend/RsyncRunnerTest.kt | 49 ++ build.gradle | 5 + ci/build.sh | 12 + ci/release.sh | 36 ++ ci/setup-toolchain.sh | 73 +++ ci/test.sh | 29 + ci/testsshd/go.mod | 7 + ci/testsshd/go.sum | 6 + ci/testsshd/main.go | 149 +++++ ci/verify-repro.sh | 23 + fastlane/metadata/android/en-US/changelogs/1.txt | 4 + .../metadata/android/en-US/full_description.txt | 14 + .../android/en-US/images/phoneScreenshots/1.png | Bin 0 -> 158231 bytes .../android/en-US/images/phoneScreenshots/2.png | Bin 0 -> 70395 bytes .../android/en-US/images/phoneScreenshots/3.png | Bin 0 -> 85264 bytes .../android/en-US/images/phoneScreenshots/4.png | Bin 0 -> 110091 bytes .../metadata/android/en-US/short_description.txt | 1 + fastlane/metadata/android/en-US/title.txt | 1 + gradle.properties | 4 + gradle/wrapper/gradle-wrapper.properties | 7 + metadata/reproducible-builds.md | 46 ++ rsh/build.sh | 49 ++ rsh/e2e_test.go | 84 +++ rsh/go.mod | 7 + rsh/go.sum | 6 + rsh/main.go | 273 +++++++++ rsh/sshserver_test.go | 141 +++++ rsh/transport_test.go | 224 +++++++ rsync/build.sh | 67 ++ rsync/rsync-3.4.1.tar.gz.sha256 | 1 + settings.gradle | 18 + versions | 28 + 85 files changed, 4772 insertions(+) create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 Makefile create mode 100644 README create mode 100644 app/build.gradle create mode 100644 app/src/main/AndroidManifest.xml create mode 100644 app/src/main/java/invalid/lena/rsend/App.kt create mode 100644 app/src/main/java/invalid/lena/rsend/BootReceiver.kt create mode 100644 app/src/main/java/invalid/lena/rsend/Config.kt create mode 100644 app/src/main/java/invalid/lena/rsend/FolderEditActivity.kt create mode 100644 app/src/main/java/invalid/lena/rsend/Insets.kt create mode 100644 app/src/main/java/invalid/lena/rsend/KeyVault.kt create mode 100644 app/src/main/java/invalid/lena/rsend/Keys.kt create mode 100644 app/src/main/java/invalid/lena/rsend/LastSync.kt create mode 100644 app/src/main/java/invalid/lena/rsend/LogActivity.kt create mode 100644 app/src/main/java/invalid/lena/rsend/MainActivity.kt create mode 100644 app/src/main/java/invalid/lena/rsend/Native.kt create mode 100644 app/src/main/java/invalid/lena/rsend/RemoteActivity.kt create mode 100644 app/src/main/java/invalid/lena/rsend/RsyncRunner.kt create mode 100644 app/src/main/java/invalid/lena/rsend/ScheduleActivity.kt create mode 100644 app/src/main/java/invalid/lena/rsend/Scheduler.kt create mode 100644 app/src/main/java/invalid/lena/rsend/SyncLog.kt create mode 100644 app/src/main/java/invalid/lena/rsend/SyncWorker.kt create mode 100644 app/src/main/res/drawable/bg_button_primary.xml create mode 100644 app/src/main/res/drawable/bg_button_secondary.xml create mode 100644 app/src/main/res/drawable/bg_card.xml create mode 100644 app/src/main/res/drawable/bg_chip.xml create mode 100644 app/src/main/res/drawable/bg_input.xml create mode 100644 app/src/main/res/drawable/dot_off.xml create mode 100644 app/src/main/res/drawable/dot_on.xml create mode 100644 app/src/main/res/drawable/ic_chevron.xml create mode 100644 app/src/main/res/drawable/ic_folder.xml create mode 100644 app/src/main/res/drawable/ic_key.xml create mode 100644 app/src/main/res/drawable/ic_launcher_background.xml create mode 100644 app/src/main/res/drawable/ic_launcher_foreground.xml create mode 100644 app/src/main/res/drawable/ic_notification.xml create mode 100644 app/src/main/res/drawable/ic_remote.xml create mode 100644 app/src/main/res/drawable/ic_schedule.xml create mode 100644 app/src/main/res/layout/activity_folder.xml create mode 100644 app/src/main/res/layout/activity_log.xml create mode 100644 app/src/main/res/layout/activity_main.xml create mode 100644 app/src/main/res/layout/activity_remote.xml create mode 100644 app/src/main/res/layout/activity_schedule.xml create mode 100644 app/src/main/res/layout/app_toolbar.xml create mode 100644 app/src/main/res/layout/dialog_key.xml create mode 100644 app/src/main/res/layout/item_folder.xml create mode 100644 app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml create mode 100644 app/src/main/res/values-night/colors.xml create mode 100644 app/src/main/res/values/colors.xml create mode 100644 app/src/main/res/values/dimens.xml create mode 100644 app/src/main/res/values/strings.xml create mode 100644 app/src/main/res/values/themes.xml create mode 100644 app/src/test/java/invalid/lena/rsend/ConfigTest.kt create mode 100644 app/src/test/java/invalid/lena/rsend/RsyncRunnerTest.kt create mode 100644 build.gradle create mode 100755 ci/build.sh create mode 100755 ci/release.sh create mode 100755 ci/setup-toolchain.sh create mode 100755 ci/test.sh create mode 100644 ci/testsshd/go.mod create mode 100644 ci/testsshd/go.sum create mode 100644 ci/testsshd/main.go create mode 100755 ci/verify-repro.sh create mode 100644 fastlane/metadata/android/en-US/changelogs/1.txt create mode 100644 fastlane/metadata/android/en-US/full_description.txt create mode 100644 fastlane/metadata/android/en-US/images/phoneScreenshots/1.png create mode 100644 fastlane/metadata/android/en-US/images/phoneScreenshots/2.png create mode 100644 fastlane/metadata/android/en-US/images/phoneScreenshots/3.png create mode 100644 fastlane/metadata/android/en-US/images/phoneScreenshots/4.png create mode 100644 fastlane/metadata/android/en-US/short_description.txt create mode 100644 fastlane/metadata/android/en-US/title.txt create mode 100644 gradle.properties create mode 100644 gradle/wrapper/gradle-wrapper.properties create mode 100644 metadata/reproducible-builds.md create mode 100755 rsh/build.sh create mode 100644 rsh/e2e_test.go create mode 100644 rsh/go.mod create mode 100644 rsh/go.sum create mode 100644 rsh/main.go create mode 100644 rsh/sshserver_test.go create mode 100644 rsh/transport_test.go create mode 100755 rsync/build.sh create mode 100644 rsync/rsync-3.4.1.tar.gz.sha256 create mode 100644 settings.gradle create mode 100644 versions diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..a281502 --- /dev/null +++ b/.gitignore @@ -0,0 +1,22 @@ +# Build output and native-lib artifacts (rebuilt from source). +/out/ +/app/build/ +/app/src/main/jniLibs/ +/rsync/work/ +/rsync/*.tar.gz +/rsh/rsh + +# Gradle and Android local config. +.gradle/ +/.kotlin/ +/local.properties + +# Secrets: .gitignore is the secret manager. +*.keystore +*.jks +/keystore.properties + +# Editor and OS noise. +*.swp +*~ +.DS_Store diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..c41c7e4 --- /dev/null +++ b/Makefile @@ -0,0 +1,41 @@ +# rsend build orchestration. Heavy lifting lives in the shell scripts so the +# project builds with one `make` on any Debian box with the pinned toolchain. + +.POSIX: + +all: native app + +# Provision the pinned toolchain (JDK, Go, Android SDK+NDK, Gradle) into +# $HOME/toolchains. One-time; then `. $HOME/toolchains/env.sh` before building. +setup: + sh ci/setup-toolchain.sh + +# Native executables, shipped inside the APK as lib*.so. +native: rsync rsh + +# Real rsync, cross-compiled from pinned source via the Android NDK. +rsync: + sh rsync/build.sh + +# Go SSH transport, cross-compiled to Bionic PIE via the NDK (needs the NDK, +# like rsync). rsh logic is verified host-side by `make test`. +rsh: + sh rsh/build.sh + +# Android app. Consumes the native libs from app/src/main/jniLibs. Uses the +# pinned system gradle; run from the repo root where settings.gradle lives. No +# wrapper jar is committed; gradle/wrapper/gradle-wrapper.properties only pins +# the version for F-Droid's gradlew, which refuses to build without it. +app: native + gradle :app:assembleRelease + +test: + sh ci/test.sh + +verify-repro: + sh ci/verify-repro.sh + +clean: + rm -rf out app/build app/src/main/jniLibs rsync/work rsh/rsh + +.PHONY: all setup native rsync rsh app test verify-repro clean diff --git a/README b/README new file mode 100644 index 0000000..eff8e99 --- /dev/null +++ b/README @@ -0,0 +1,122 @@ +rsend +===== +Push configured phone folders to a home SSH host using real rsync. + +rsend backs up folders such as DCIM, WhatsApp media, and call recordings to a +remote host over SSH. One-way push only, on WiFi by default, periodic or +manual. Small, boring, self-contained: real rsync and a pure-Go SSH transport, +both built from source and shipped inside the APK. No foreign prebuilt +binaries. + + +What it does +------------ +- Pushes one or more local folders to remote paths over rsync-over-SSH. +- Incremental: only changed files move; large videos resume (rsync --partial). +- Per-folder deletion policy: additive backup (default) or mirror (--delete). +- Runs on unmetered WiFi, periodically (WorkManager) or on demand. +- ed25519 key auth with strict, pinned host-key verification. + + +Layout +------ +- rsh/ pure-Go SSH transport used as rsync's remote shell (-e). +- rsync/ build script that compiles pinned rsync from source via the NDK. +- app/ Android app (Kotlin, classic Views); bundles both as lib*.so. +- ci/ CI-agnostic build and test scripts; the Makefile drives them. +- metadata/ reproducibility and F-Droid build notes. +- versions pinned toolchain and source versions; the single source of truth. + + +Build +----- +The repository is self-contained: clone it and the build fetches and pins +everything else from source. The only host prerequisites are a POSIX shell, +curl, python3, tar, and git. The toolchain (JDK, Go, Android SDK and NDK, +Gradle) and the rsync source are downloaded and version-pinned by the build +(see versions for every pin). + + make setup # provision the toolchain into $HOME/toolchains + . "$HOME/toolchains/env.sh" # put it on PATH (do this in each shell) + make # rsync (NDK) -> rsh (Go) -> APK + make test # Go tests plus the host-side end-to-end push + make verify-repro # build twice, diff the artifacts + +The APK lands under app/build/outputs/apk/. It is unsigned by default; signing +config is local and gitignored. Continuous integration runs the same scripts: +ci/setup-toolchain.sh then ci/build.sh and ci/test.sh. + + +Run +--- +1. Install the APK and grant all-files access and notifications. +2. Generate a key in the app and add the shown public key to the home host's + ~/.ssh/authorized_keys. +3. Set the remote host, user, and port; run Test connection and accept the + pinned host-key fingerprint. +4. Add folders, choose each folder's deletion policy, set the schedule. +5. Tap Sync now, or wait for the periodic WiFi sync. + +For scheduled backup to run reliably, tap Battery and allow rsend to ignore +battery optimization. Phones with aggressive power management (Samsung, Xiaomi, +and others) otherwise delay or skip background jobs; see dontkillmyapp.com. + + +Server +------ +Any host with sshd and rsync works; rsend pushes over rsync-over-SSH, not SFTP. +The account is confined to "rsync into one folder and nothing else" by a forced +rrsync command, not by its shell. sshd runs that command through the account's +login shell, so the shell must be real: /bin/sh works, while /bin/false or +/sbin/nologin would break rsync. The confinement comes from key-only auth, the +forced command, and rrsync's write-only root. As root on the server: + + useradd -m -d /srv/backup -s /bin/sh rsendbackup + passwd -l rsendbackup + mkdir -p /srv/backup/phone && chown -R rsendbackup:rsendbackup /srv/backup + +This assumes UsePAM yes in sshd_config (the default on most distros; set it if +your build has it off). With UsePAM yes a password-locked account still accepts +key logins. With UsePAM no, sshd refuses any locked account even for keys +("account is locked"); there, skip passwd -l, set PasswordAuthentication no, and +leave the account with a non-locked password field. + +Put the app's public key in /srv/backup/.ssh/authorized_keys as one restricted +line that forces rrsync, write-only, into that directory: + + command="/usr/bin/rrsync -wo /srv/backup/phone",restrict ssh-ed25519 AAAA... rsend + +To apply the same limit account-wide, so it holds even if another key is added +later and not only on this key, force the command in sshd_config and reload +sshd: + + Match User rsendbackup + ForceCommand /usr/bin/rrsync -wo /srv/backup/phone + PasswordAuthentication no + PermitTTY no + AllowTcpForwarding no + AllowAgentForwarding no + AllowStreamLocalForwarding no + X11Forwarding no + +The account can then do nothing but receive rsync into that folder: every +session, with any key, is forced through rrsync, which rejects anything but a +plain rsync transfer into its root. Remote paths are relative to that root, so +set a folder's remote path to DCIM, not an absolute path. rrsync may instead +live at /usr/share/rsync/scripts/rrsync; check command -v rrsync. Verify the +host key from Test connection against +ssh-keygen -lf /etc/ssh/ssh_host_ed25519_key.pub on the server. + + +Debug +----- +- The in-app log viewer tails the plain-text rsync log. +- Reproduce a sync from a shell using the same rsync invocation rsend logs at + the top of each run. +- rsh transport: RSH_KEY, RSH_KNOWN_HOSTS, and RSH_PORT select the key, + known_hosts file, and port. Run rsh by hand to isolate SSH from rsync. + + +License +------- +GPLv3. Bundling rsync makes the whole app GPLv3; see LICENSE. diff --git a/app/build.gradle b/app/build.gradle new file mode 100644 index 0000000..56036ab --- /dev/null +++ b/app/build.gradle @@ -0,0 +1,88 @@ +plugins { + id 'com.android.application' + id 'org.jetbrains.kotlin.android' +} + +// Release signing is configured only if a local keystore.properties exists +// (gitignored). Otherwise the release build is unsigned, which is what F-Droid +// and reproducible-build verification want. +def keystoreProps = rootProject.file('keystore.properties') + +android { + namespace 'invalid.lena.rsend' + compileSdk 35 + + defaultConfig { + applicationId 'invalid.lena.rsend' + minSdk 30 + targetSdk 35 + versionCode 1 + versionName '0.1.0' + // Ship only the ABIs we build native libs for. + ndk { abiFilters 'arm64-v8a', 'x86_64' } + } + + signingConfigs { + if (keystoreProps.exists()) { + def props = new Properties() + keystoreProps.withInputStream { props.load(it) } + release { + storeFile rootProject.file(props['storeFile']) + storePassword props['storePassword'] + keyAlias props['keyAlias'] + keyPassword props['keyPassword'] + // Include v1 (JAR) signing too; some sideload installers + // (Samsung One UI on Android 11/12) reject v2-only APKs with + // "problem parsing the package". + enableV1Signing true + enableV2Signing true + enableV3Signing true + } + } + } + + buildTypes { + release { + minifyEnabled false + if (keystoreProps.exists()) { + signingConfig signingConfigs.release + } + } + } + + compileOptions { + sourceCompatibility JavaVersion.VERSION_17 + targetCompatibility JavaVersion.VERSION_17 + } + kotlinOptions { + jvmTarget = '17' + } + + buildFeatures { + buildConfig true + } + + // Native executables ship as lib*.so and must be extracted so we can exec + // them from nativeLibraryDir (useLegacyPackaging => extractNativeLibs=true). + packaging { + jniLibs { + useLegacyPackaging true + } + } + + // Reproducible / F-Droid: do not embed the Google dependency metadata block. + dependenciesInfo { + includeInApk false + includeInBundle false + } +} + +dependencies { + implementation 'androidx.core:core-ktx:1.13.1' + implementation 'androidx.appcompat:appcompat:1.7.0' + implementation 'androidx.work:work-runtime-ktx:2.10.0' + + // The real org.json shadows the android.jar stub so JSON tests run on the JVM. + testImplementation 'junit:junit:4.13.2' + testImplementation 'org.json:json:20240303' +} diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..31c8b72 --- /dev/null +++ b/app/src/main/AndroidManifest.xml @@ -0,0 +1,62 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/app/src/main/java/invalid/lena/rsend/App.kt b/app/src/main/java/invalid/lena/rsend/App.kt new file mode 100644 index 0000000..55ed66e --- /dev/null +++ b/app/src/main/java/invalid/lena/rsend/App.kt @@ -0,0 +1,22 @@ +package invalid.lena.rsend + +import android.app.Application +import android.app.NotificationChannel +import android.app.NotificationManager +import android.os.Build + +// App creates the notification channel used by the foreground sync service. +class App : Application() { + + override fun onCreate() { + super.onCreate() + if (Build.VERSION.SDK_INT >= 26) { + val ch = NotificationChannel(CHANNEL, "Sync", NotificationManager.IMPORTANCE_LOW) + getSystemService(NotificationManager::class.java).createNotificationChannel(ch) + } + } + + companion object { + const val CHANNEL = "sync" + } +} diff --git a/app/src/main/java/invalid/lena/rsend/BootReceiver.kt b/app/src/main/java/invalid/lena/rsend/BootReceiver.kt new file mode 100644 index 0000000..3e135f3 --- /dev/null +++ b/app/src/main/java/invalid/lena/rsend/BootReceiver.kt @@ -0,0 +1,15 @@ +package invalid.lena.rsend + +import android.content.BroadcastReceiver +import android.content.Context +import android.content.Intent + +// BootReceiver re-applies the schedule after the device restarts, so periodic +// sync survives reboots even if WorkManager's own state was cleared. +class BootReceiver : BroadcastReceiver() { + override fun onReceive(context: Context, intent: Intent) { + if (intent.action == Intent.ACTION_BOOT_COMPLETED) { + Scheduler.apply(context) + } + } +} diff --git a/app/src/main/java/invalid/lena/rsend/Config.kt b/app/src/main/java/invalid/lena/rsend/Config.kt new file mode 100644 index 0000000..8c9c22c --- /dev/null +++ b/app/src/main/java/invalid/lena/rsend/Config.kt @@ -0,0 +1,107 @@ +package invalid.lena.rsend + +import android.content.Context +import org.json.JSONArray +import org.json.JSONObject +import java.io.File + +// Config is rsend's whole state: the remote target, the schedule, and the +// folders to push. It is stored as plain JSON in app-private storage. + +data class Remote(val host: String = "", val port: Int = 22, val user: String = "") + +data class Schedule( + val enabled: Boolean = false, + val intervalMinutes: Int = 120, + val wifiOnly: Boolean = true, + val requireCharging: Boolean = false, +) + +data class Folder( + val name: String = "", + val local: String = "", + val remote: String = "", + val delete: Boolean = false, + val excludes: List = emptyList(), +) + +data class Config( + val remote: Remote = Remote(), + val schedule: Schedule = Schedule(), + val folders: List = emptyList(), +) { + fun toJson(): JSONObject = JSONObject().apply { + put("remote", JSONObject().apply { + put("host", remote.host) + put("port", remote.port) + put("user", remote.user) + }) + put("schedule", JSONObject().apply { + put("enabled", schedule.enabled) + put("intervalMinutes", schedule.intervalMinutes) + put("wifiOnly", schedule.wifiOnly) + put("requireCharging", schedule.requireCharging) + }) + put("folders", JSONArray().apply { + folders.forEach { f -> + put(JSONObject().apply { + put("name", f.name) + put("local", f.local) + put("remote", f.remote) + put("delete", f.delete) + put("excludes", JSONArray(f.excludes)) + }) + } + }) + } + + companion object { + fun file(ctx: Context): File = File(ctx.filesDir, "config.json") + + fun load(ctx: Context): Config { + val f = file(ctx) + if (!f.exists()) return Config() + return fromJson(JSONObject(f.readText())) + } + + fun save(ctx: Context, c: Config) { + file(ctx).writeText(c.toJson().toString(2)) + } + + fun fromJson(o: JSONObject): Config { + val r = o.optJSONObject("remote") ?: JSONObject() + val s = o.optJSONObject("schedule") ?: JSONObject() + val fa = o.optJSONArray("folders") ?: JSONArray() + val folders = ArrayList(fa.length()) + for (i in 0 until fa.length()) { + val fo = fa.getJSONObject(i) + val ex = fo.optJSONArray("excludes") ?: JSONArray() + val excludes = ArrayList(ex.length()) + for (j in 0 until ex.length()) excludes.add(ex.getString(j)) + folders.add( + Folder( + name = fo.optString("name"), + local = fo.optString("local"), + remote = fo.optString("remote"), + delete = fo.optBoolean("delete", false), + excludes = excludes, + ) + ) + } + return Config( + remote = Remote( + host = r.optString("host"), + port = r.optInt("port", 22), + user = r.optString("user"), + ), + schedule = Schedule( + enabled = s.optBoolean("enabled", false), + intervalMinutes = s.optInt("intervalMinutes", 120), + wifiOnly = s.optBoolean("wifiOnly", true), + requireCharging = s.optBoolean("requireCharging", false), + ), + folders = folders, + ) + } + } +} diff --git a/app/src/main/java/invalid/lena/rsend/FolderEditActivity.kt b/app/src/main/java/invalid/lena/rsend/FolderEditActivity.kt new file mode 100644 index 0000000..2fe2b1b --- /dev/null +++ b/app/src/main/java/invalid/lena/rsend/FolderEditActivity.kt @@ -0,0 +1,77 @@ +package invalid.lena.rsend + +import android.os.Bundle +import android.view.View +import android.widget.Button +import android.widget.EditText +import android.widget.Switch +import android.widget.Toast +import androidx.appcompat.app.AppCompatActivity +import java.io.File + +// FolderEditActivity adds or edits one folder mapping. index < 0 means a new +// folder. +class FolderEditActivity : AppCompatActivity() { + + private var index: Int = -1 + private lateinit var name: EditText + private lateinit var local: EditText + private lateinit var remote: EditText + private lateinit var excludes: EditText + private lateinit var delete: Switch + + override fun onCreate(savedInstanceState: Bundle?) { + super.onCreate(savedInstanceState) + setContentView(R.layout.activity_folder) + setSupportActionBar(findViewById(R.id.toolbar)) + title = "Folder" + fitSystemBars() + name = findViewById(R.id.name) + local = findViewById(R.id.local) + remote = findViewById(R.id.remote) + excludes = findViewById(R.id.excludes) + delete = findViewById(R.id.delete) + + index = intent.getIntExtra("index", -1) + val cfg = Config.load(this) + if (index in cfg.folders.indices) { + val f = cfg.folders[index] + name.setText(f.name) + local.setText(f.local) + remote.setText(f.remote) + excludes.setText(f.excludes.joinToString(", ")) + delete.isChecked = f.delete + } + + findViewById