[FL-1064] iButton CLI commands (#407)

* ibutton: add cli commands
* ibutton/scene: add cli event send
* ibutton: make separate scenes for cli commands
* ibutton/scene: add timeout to cli scenes
* ibutton: fix reading key data from cli
* cli: add cli_delete_command to API
* ibutton: delete cli command after app exit
* cli: free allocated string

Co-authored-by: あく <alleteam@gmail.com>

8 files changed, 499 insertions, 0 deletions

diff --git a/applications/ibutton/ibutton-app.cpp b/applications/ibutton/ibutton-app.cpp
index fef1942f..5f1d8456 100644
--- a/applications/ibutton/ibutton-app.cpp
+++ b/applications/ibutton/ibutton-app.cpp
@@ -1,5 +1,7 @@
 #include "ibutton-app.h"
 #include <stdarg.h>
+#include <callback-connector.h>
+#include <m-string.h>
 
 void iButtonApp::run(void) {
     iButtonEvent event;
@@ -23,13 +25,167 @@ void iButtonApp::run(void) {
     scenes[current_scene]->on_exit(this);
 }
 
+void iButtonApp::print_key_data(void) {
+    uint8_t* key_data = key.get_data();
+    switch(key.get_key_type()) {
+    case iButtonKeyType::KeyDallas:
+        printf(
+            "Dallas %02X %02X %02X %02X %02X %02X %02X %02X\r\n",
+            key_data[0],
+            key_data[1],
+            key_data[2],
+            key_data[3],
+            key_data[4],
+            key_data[5],
+            key_data[6],
+            key_data[7]);
+        break;
+    case iButtonKeyType::KeyCyfral:
+        printf("Cyfral %02X %02X\r\n", key_data[0], key_data[1]);
+        break;
+    case iButtonKeyType::KeyMetakom:
+        printf(
+            "Metakom %02X %02X %02X %02X\r\n", key_data[0], key_data[1], key_data[2], key_data[3]);
+        break;
+    }
+}
+
+bool iButtonApp::read_hex_byte(string_t args, uint8_t* byte) {
+    char* endptr;
+    *byte = strtoul(string_get_cstr(args), &endptr, 16);
+    if(*endptr == '\0') {
+        return false;
+    }
+    size_t ws = string_search_char(args, ' ');
+    if(ws != 2) {
+        return false;
+    }
+    string_right(args, ws);
+    string_strim(args);
+    return true;
+}
+
+void iButtonApp::cli_cmd_callback(string_t args, void* context) {
+    iButtonApp::Scene scene;
+    string_t cmd;
+    string_init(cmd);
+    if(!string_cmp_str(args, "read")) {
+        scene = iButtonApp::Scene::SceneCliRead;
+        printf("Reading key ...\r\n");
+    } else {
+        // Parse write / emulate commands
+        size_t ws = string_search_char(args, ' ');
+        if(ws == STRING_FAILURE) {
+            printf("Incorrect input. Try tm <read | write | emulate> [key_type] [key_data]\r\n");
+            string_clear(cmd);
+            return;
+        } else {
+            string_set_n(cmd, args, 0, ws);
+            string_right(args, ws);
+            string_strim(args);
+        }
+        if(!string_cmp_str(cmd, "write")) {
+            scene = iButtonApp::Scene::SceneCliWrite;
+        } else if(!string_cmp_str(cmd, "emulate")) {
+            scene = iButtonApp::Scene::SceneCliEmulate;
+        } else {
+            printf("Incorrect input. Try tm <write | emulate> <key_type> <key_data>\r\n");
+            string_clear(cmd);
+            return;
+        }
+        string_clear(cmd);
+        // Parse key type
+        string_t key_type;
+        string_init(key_type);
+        ws = string_search_char(args, ' ');
+        string_set_n(key_type, args, 0, ws);
+        uint8_t bytes_to_read = 0;
+        if(!string_cmp_str(key_type, "0")) {
+            key.set_type(iButtonKeyType::KeyDallas);
+            bytes_to_read = 8;
+        } else if(!string_cmp_str(key_type, "1")) {
+            key.set_type(iButtonKeyType::KeyCyfral);
+            bytes_to_read = 2;
+        } else if(!string_cmp_str(key_type, "2")) {
+            key.set_type(iButtonKeyType::KeyMetakom);
+            bytes_to_read = 4;
+        } else {
+            printf("Incorrect key type. Try 0 - KeyDallas, 1 - KeyCyfral, 2 - KeyMetakom");
+            string_clear(key_type);
+            return;
+        }
+        string_clear(key_type);
+        // Read key data
+        string_right(args, 1);
+        string_strim(args);
+        uint8_t key_data[8] = {};
+        uint8_t i = 0;
+        bool ret = true;
+        while((i < bytes_to_read) && ret) {
+            ret = read_hex_byte(args, &key_data[i++]);
+        }
+        if(i != bytes_to_read) {
+            printf("Incorrect key data\r\n");
+            return;
+        }
+        key.set_data(key_data, bytes_to_read);
+        if(scene == iButtonApp::Scene::SceneCliWrite) {
+            printf("Writing key ");
+        } else {
+            printf("Emulating key ");
+        }
+        print_key_data();
+    }
+    switch_to_next_scene(scene);
+    // Wait return event
+    iButtonApp::CliEvent result;
+    if(osMessageQueueGet(cli_event_result, &result, NULL, osWaitForever) != osOK) {
+        printf("Command execution error\r\n");
+        return;
+    }
+    // Process return event
+    switch(result) {
+    case iButtonApp::CliEvent::CliReadSuccess:
+        print_key_data();
+    case iButtonApp::CliEvent::CliReadCRCError:
+        printf("Read error: invalid CRC\r\n");
+        break;
+    case iButtonApp::CliEvent::CliReadNotKeyError:
+        printf("Read error: not a key\r\n");
+        break;
+    case iButtonApp::CliEvent::CliTimeout:
+        printf("Timeout error\r\n");
+        break;
+    case iButtonApp::CliEvent::CliInterrupt:
+        printf("Command interrupted\r\n");
+        break;
+    case iButtonApp::CliEvent::CliWriteSuccess:
+        printf("Write success\r\n");
+        break;
+    case iButtonApp::CliEvent::CliWriteFail:
+        printf("Write fail\r\n");
+        break;
+    default:
+        break;
+    }
+    return;
+}
+
+void iButtonApp::cli_send_event(iButtonApp::CliEvent scene) {
+    osMessageQueuePut(cli_event_result, &scene, 0, osWaitForever);
+}
+
 iButtonApp::iButtonApp() {
     notify_init();
     api_hal_power_insomnia_enter();
 
+    cli_event_result = osMessageQueueNew(1, sizeof(iButtonApp::Scene), NULL);
     key_worker = new KeyWorker(&ibutton_gpio);
     sd_ex_api = static_cast<SdCard_Api*>(furi_record_open("sdcard-ex"));
     fs_api = static_cast<FS_Api*>(furi_record_open("sdcard"));
+    cli = static_cast<Cli*>(furi_record_open("cli"));
+    auto callback = cbc::obtain_connector(this, &iButtonApp::cli_cmd_callback);
+    cli_add_command(cli, "tm", callback, cli);
 
     // we need random
     srand(DWT->CYCCNT);
@@ -38,6 +194,9 @@ iButtonApp::iButtonApp() {
 iButtonApp::~iButtonApp() {
     furi_record_close("sdcard-ex");
     furi_record_close("sdcard");
+    cli_delete_command(cli, "tm");
+    furi_record_close("cli");
+    osMessageQueueDelete(cli_event_result);
     api_hal_power_insomnia_exit();
 }
 
diff --git a/applications/ibutton/ibutton-app.h b/applications/ibutton/ibutton-app.h
index 142473b9..837204c6 100644
--- a/applications/ibutton/ibutton-app.h
+++ b/applications/ibutton/ibutton-app.h
@@ -6,16 +6,19 @@
 #include "scene/ibutton-scene-generic.h"
 #include "scene/ibutton-scene-start.h"
 #include "scene/ibutton-scene-read.h"
+#include "scene/ibutton-scene-cli-read.h"
 #include "scene/ibutton-scene-read-crc-error.h"
 #include "scene/ibutton-scene-read-not-key-error.h"
 #include "scene/ibutton-scene-read-success.h"
 #include "scene/ibutton-scene-readed-key-menu.h"
 #include "scene/ibutton-scene-write.h"
+#include "scene/ibutton-scene-cli-write.h"
 #include "scene/ibutton-scene-write-success.h"
 #include "scene/ibutton-scene-saved-key-menu.h"
 #include "scene/ibutton-scene-delete-confirm.h"
 #include "scene/ibutton-scene-delete-success.h"
 #include "scene/ibutton-scene-emulate.h"
+#include "scene/ibutton-scene-cli-emulate.h"
 #include "scene/ibutton-scene-save-name.h"
 #include "scene/ibutton-scene-save-success.h"
 #include "scene/ibutton-scene-info.h"
@@ -26,6 +29,7 @@
 
 #include <sd-card-api.h>
 #include <filesystem-api.h>
+#include "../cli/cli.h"
 
 #include "one_wire_master.h"
 #include "maxim_crc.h"
@@ -42,13 +46,16 @@ public:
         SceneExit,
         SceneStart,
         SceneRead,
+        SceneCliRead,
         SceneReadNotKeyError,
         SceneReadCRCError,
         SceneReadSuccess,
         SceneReadedKeyMenu,
         SceneWrite,
+        SceneCliWrite,
         SceneWriteSuccess,
         SceneEmulate,
+        SceneCliEmulate,
         SceneSavedKeyMenu,
         SceneDeleteConfirm,
         SceneDeleteSuccess,
@@ -59,6 +66,16 @@ public:
         SceneAddValue,
     };
 
+    enum class CliEvent : uint8_t {
+        CliReadSuccess,
+        CliReadCRCError,
+        CliReadNotKeyError,
+        CliWriteSuccess,
+        CliWriteFail,
+        CliTimeout,
+        CliInterrupt,
+    };
+
     iButtonAppViewManager* get_view_manager();
     void switch_to_next_scene(Scene index);
     void search_and_switch_to_previous_scene(std::initializer_list<Scene> scenes_list);
@@ -93,23 +110,30 @@ public:
     char* get_file_name();
     uint8_t get_file_name_size();
 
+    void cli_cmd_callback(string_t args, void* context);
+    void cli_send_event(CliEvent scene);
+
     void generate_random_name(char* name, uint8_t max_name_size);
 
 private:
     std::list<Scene> previous_scenes_list = {Scene::SceneExit};
     Scene current_scene = Scene::SceneStart;
     iButtonAppViewManager view;
+    osMessageQueueId_t cli_event_result;
 
     std::map<Scene, iButtonScene*> scenes = {
         {Scene::SceneStart, new iButtonSceneStart()},
         {Scene::SceneRead, new iButtonSceneRead()},
+        {Scene::SceneCliRead, new iButtonSceneCliRead()},
         {Scene::SceneReadCRCError, new iButtonSceneReadCRCError()},
         {Scene::SceneReadNotKeyError, new iButtonSceneReadNotKeyError()},
         {Scene::SceneReadSuccess, new iButtonSceneReadSuccess()},
         {Scene::SceneReadedKeyMenu, new iButtonSceneReadedKeyMenu()},
         {Scene::SceneWrite, new iButtonSceneWrite()},
+        {Scene::SceneCliWrite, new iButtonSceneCliWrite()},
         {Scene::SceneWriteSuccess, new iButtonSceneWriteSuccess()},
         {Scene::SceneEmulate, new iButtonSceneEmulate()},
+        {Scene::SceneCliEmulate, new iButtonSceneCliEmulate()},
         {Scene::SceneSavedKeyMenu, new iButtonSceneSavedKeyMenu()},
         {Scene::SceneDeleteConfirm, new iButtonSceneDeleteConfirm()},
         {Scene::SceneDeleteSuccess, new iButtonSceneDeleteSuccess()},
@@ -126,6 +150,7 @@ private:
 
     SdCard_Api* sd_ex_api;
     FS_Api* fs_api;
+    Cli* cli;
     static const uint8_t file_name_size = 100;
     char file_name[file_name_size];
 
@@ -133,4 +158,6 @@ private:
     char text_store[text_store_size + 1];
 
     void notify_init();
+    bool read_hex_byte(string_t arg, uint8_t* byte);
+    void print_key_data(void);
 };
\ No newline at end of file
diff --git a/applications/ibutton/scene/ibutton-scene-cli-emulate.cpp b/applications/ibutton/scene/ibutton-scene-cli-emulate.cpp
new file mode 100644
index 00000000..43e010ec
--- /dev/null
+++ b/applications/ibutton/scene/ibutton-scene-cli-emulate.cpp
@@ -0,0 +1,102 @@
+#include "ibutton-scene-cli-emulate.h"
+#include "../ibutton-app.h"
+#include "../ibutton-view-manager.h"
+#include "../ibutton-event.h"
+#include "../ibutton-key.h"
+#include <callback-connector.h>
+
+void iButtonSceneCliEmulate::on_enter(iButtonApp* app) {
+    iButtonAppViewManager* view_manager = app->get_view_manager();
+    Popup* popup = view_manager->get_popup();
+    iButtonKey* key = app->get_key();
+    uint8_t* key_data = key->get_data();
+    const char* key_name = key->get_name();
+    uint8_t line_count = 2;
+    timeout = 50; // 5s timeout
+
+    // check that stored key has name
+    if(strcmp(key_name, "") != 0) {
+        app->set_text_store("emulating\n%s", key_name);
+        line_count = 2;
+    } else {
+        // if not, show key data
+        switch(key->get_key_type()) {
+        case iButtonKeyType::KeyDallas:
+            app->set_text_store(
+                "emulating\n%02X %02X %02X %02X\n%02X %02X %02X %02X",
+                key_data[0],
+                key_data[1],
+                key_data[2],
+                key_data[3],
+                key_data[4],
+                key_data[5],
+                key_data[6],
+                key_data[7]);
+            line_count = 3;
+            break;
+        case iButtonKeyType::KeyCyfral:
+            app->set_text_store("emulating\n%02X %02X", key_data[0], key_data[1]);
+            line_count = 2;
+            break;
+        case iButtonKeyType::KeyMetakom:
+            app->set_text_store(
+                "emulating\n%02X %02X %02X %02X",
+                key_data[0],
+                key_data[1],
+                key_data[2],
+                key_data[3]);
+            line_count = 2;
+            break;
+        }
+    }
+
+    switch(line_count) {
+    case 3:
+        popup_set_header(popup, "iButton", 92, 18, AlignCenter, AlignBottom);
+        popup_set_text(popup, app->get_text_store(), 92, 22, AlignCenter, AlignTop);
+        break;
+
+    default:
+        popup_set_header(popup, "iButton", 92, 24, AlignCenter, AlignBottom);
+        popup_set_text(popup, app->get_text_store(), 92, 28, AlignCenter, AlignTop);
+        break;
+    }
+
+    popup_set_icon(popup, 10, 10, I_iButtonKey_49x44);
+
+    view_manager->switch_to(iButtonAppViewManager::Type::iButtonAppViewPopup);
+    app->get_key_worker()->start_emulate(app->get_key());
+}
+
+bool iButtonSceneCliEmulate::on_event(iButtonApp* app, iButtonEvent* event) {
+    bool consumed = false;
+
+    if(event->type == iButtonEvent::Type::EventTypeTick) {
+        consumed = true;
+        if(!timeout--) {
+            app->cli_send_event(iButtonApp::CliEvent::CliTimeout);
+            app->search_and_switch_to_previous_scene({iButtonApp::Scene::SceneStart});
+        } else {
+            if(app->get_key_worker()->emulated()) {
+                app->notify_yellow_blink();
+            } else {
+                app->notify_red_blink();
+            }
+        }
+    } else if(event->type == iButtonEvent::Type::EventTypeBack) {
+        consumed = false;
+        app->cli_send_event(iButtonApp::CliEvent::CliInterrupt);
+    }
+
+    return consumed;
+}
+
+void iButtonSceneCliEmulate::on_exit(iButtonApp* app) {
+    app->get_key_worker()->stop_emulate();
+
+    Popup* popup = app->get_view_manager()->get_popup();
+
+    popup_set_header(popup, NULL, 0, 0, AlignCenter, AlignBottom);
+    popup_set_text(popup, NULL, 0, 0, AlignCenter, AlignTop);
+    popup_set_icon(popup, -1, -1, I_DolphinWait_61x59);
+}
\ No newline at end of file
diff --git a/applications/ibutton/scene/ibutton-scene-cli-emulate.h b/applications/ibutton/scene/ibutton-scene-cli-emulate.h
new file mode 100644
index 00000000..c6d45149
--- /dev/null
+++ b/applications/ibutton/scene/ibutton-scene-cli-emulate.h
@@ -0,0 +1,13 @@
+#pragma once
+#include "ibutton-scene-generic.h"
+#include "../helpers/key-emulator.h"
+
+class iButtonSceneCliEmulate : public iButtonScene {
+public:
+    void on_enter(iButtonApp* app) final;
+    bool on_event(iButtonApp* app, iButtonEvent* event) final;
+    void on_exit(iButtonApp* app) final;
+
+private:
+    uint16_t timeout;
+};
\ No newline at end of file
diff --git a/applications/ibutton/scene/ibutton-scene-cli-read.cpp b/applications/ibutton/scene/ibutton-scene-cli-read.cpp
new file mode 100644
index 00000000..ac4a4432
--- /dev/null
+++ b/applications/ibutton/scene/ibutton-scene-cli-read.cpp
@@ -0,0 +1,65 @@
+#include "ibutton-scene-cli-read.h"
+#include "../ibutton-app.h"
+#include "../ibutton-view-manager.h"
+#include "../ibutton-event.h"
+
+void iButtonSceneCliRead::on_enter(iButtonApp* app) {
+    iButtonAppViewManager* view_manager = app->get_view_manager();
+    Popup* popup = view_manager->get_popup();
+    timeout = 50; // 5s timeout
+
+    popup_set_header(popup, "iButton", 95, 26, AlignCenter, AlignBottom);
+    popup_set_text(popup, "waiting\nfor key ...", 95, 30, AlignCenter, AlignTop);
+    popup_set_icon(popup, 0, 5, I_DolphinWait_61x59);
+
+    view_manager->switch_to(iButtonAppViewManager::Type::iButtonAppViewPopup);
+    app->get_key()->set_name("");
+
+    app->get_key_worker()->start_read();
+}
+
+bool iButtonSceneCliRead::on_event(iButtonApp* app, iButtonEvent* event) {
+    bool consumed = false;
+
+    if(event->type == iButtonEvent::Type::EventTypeTick) {
+        consumed = true;
+        app->notify_red_blink();
+        if(!timeout--) {
+            app->cli_send_event(iButtonApp::CliEvent::CliTimeout);
+            app->search_and_switch_to_previous_scene({iButtonApp::Scene::SceneStart});
+            return consumed;
+        } else {
+            switch(app->get_key_worker()->read(app->get_key())) {
+            case KeyReader::Error::EMPTY:
+                break;
+            case KeyReader::Error::OK:
+                app->cli_send_event(iButtonApp::CliEvent::CliReadSuccess);
+                app->search_and_switch_to_previous_scene({iButtonApp::Scene::SceneStart});
+                break;
+            case KeyReader::Error::CRC_ERROR:
+                app->cli_send_event(iButtonApp::CliEvent::CliReadCRCError);
+                app->search_and_switch_to_previous_scene({iButtonApp::Scene::SceneStart});
+                break;
+            case KeyReader::Error::NOT_ARE_KEY:
+                app->cli_send_event(iButtonApp::CliEvent::CliReadNotKeyError);
+                app->search_and_switch_to_previous_scene({iButtonApp::Scene::SceneStart});
+                break;
+            }
+        }
+    } else if(event->type == iButtonEvent::Type::EventTypeBack) {
+        consumed = false;
+        app->cli_send_event(iButtonApp::CliEvent::CliInterrupt);
+    }
+
+    return consumed;
+}
+
+void iButtonSceneCliRead::on_exit(iButtonApp* app) {
+    app->get_key_worker()->stop_read();
+
+    Popup* popup = app->get_view_manager()->get_popup();
+
+    popup_set_header(popup, NULL, 0, 0, AlignCenter, AlignBottom);
+    popup_set_text(popup, NULL, 0, 0, AlignCenter, AlignTop);
+    popup_set_icon(popup, -1, -1, I_DolphinWait_61x59);
+}
\ No newline at end of file
diff --git a/applications/ibutton/scene/ibutton-scene-cli-read.h b/applications/ibutton/scene/ibutton-scene-cli-read.h
new file mode 100644
index 00000000..7590068e
--- /dev/null
+++ b/applications/ibutton/scene/ibutton-scene-cli-read.h
@@ -0,0 +1,12 @@
+#pragma once
+#include "ibutton-scene-generic.h"
+
+class iButtonSceneCliRead : public iButtonScene {
+public:
+    void on_enter(iButtonApp* app) final;
+    bool on_event(iButtonApp* app, iButtonEvent* event) final;
+    void on_exit(iButtonApp* app) final;
+
+private:
+    uint16_t timeout;
+};
\ No newline at end of file
diff --git a/applications/ibutton/scene/ibutton-scene-cli-write.cpp b/applications/ibutton/scene/ibutton-scene-cli-write.cpp
new file mode 100644
index 00000000..fed3b38f
--- /dev/null
+++ b/applications/ibutton/scene/ibutton-scene-cli-write.cpp
@@ -0,0 +1,109 @@
+#include "ibutton-scene-cli-write.h"
+#include "../ibutton-app.h"
+#include "../ibutton-view-manager.h"
+#include "../ibutton-event.h"
+#include "../ibutton-key.h"
+
+void iButtonSceneCliWrite::on_enter(iButtonApp* app) {
+    iButtonAppViewManager* view_manager = app->get_view_manager();
+    Popup* popup = view_manager->get_popup();
+    iButtonKey* key = app->get_key();
+    uint8_t* key_data = key->get_data();
+    const char* key_name = key->get_name();
+    uint8_t line_count = 2;
+    timeout = 50; // 5s timeout
+
+    // check that stored key has name
+    if(strcmp(key_name, "") != 0) {
+        app->set_text_store("writing\n%s", key_name);
+        line_count = 2;
+    } else {
+        // if not, show key data
+        switch(key->get_key_type()) {
+        case iButtonKeyType::KeyDallas:
+            app->set_text_store(
+                "writing\n%02X %02X %02X %02X\n%02X %02X %02X %02X",
+                key_data[0],
+                key_data[1],
+                key_data[2],
+                key_data[3],
+                key_data[4],
+                key_data[5],
+                key_data[6],
+                key_data[7]);
+            line_count = 3;
+            break;
+        case iButtonKeyType::KeyCyfral:
+            app->set_text_store("writing\n%02X %02X", key_data[0], key_data[1]);
+            line_count = 2;
+            break;
+        case iButtonKeyType::KeyMetakom:
+            app->set_text_store(
+                "writing\n%02X %02X %02X %02X", key_data[0], key_data[1], key_data[2], key_data[3]);
+            line_count = 2;
+            break;
+        }
+    }
+
+    switch(line_count) {
+    case 3:
+        popup_set_header(popup, "iButton", 92, 18, AlignCenter, AlignBottom);
+        popup_set_text(popup, app->get_text_store(), 92, 22, AlignCenter, AlignTop);
+        break;
+
+    default:
+        popup_set_header(popup, "iButton", 92, 24, AlignCenter, AlignBottom);
+        popup_set_text(popup, app->get_text_store(), 92, 28, AlignCenter, AlignTop);
+        break;
+    }
+
+    popup_set_icon(popup, 10, 10, I_iButtonKey_49x44);
+
+    view_manager->switch_to(iButtonAppViewManager::Type::iButtonAppViewPopup);
+
+    app->get_key_worker()->start_write();
+}
+
+bool iButtonSceneCliWrite::on_event(iButtonApp* app, iButtonEvent* event) {
+    bool consumed = false;
+
+    if(event->type == iButtonEvent::Type::EventTypeTick) {
+        consumed = true;
+        if(!timeout--) {
+            app->cli_send_event(iButtonApp::CliEvent::CliTimeout);
+            app->search_and_switch_to_previous_scene({iButtonApp::Scene::SceneStart});
+        } else {
+            KeyWriter::Error result = app->get_key_worker()->write(app->get_key());
+
+            switch(result) {
+            case KeyWriter::Error::SAME_KEY:
+            case KeyWriter::Error::OK:
+                app->cli_send_event(iButtonApp::CliEvent::CliWriteSuccess);
+                app->search_and_switch_to_previous_scene({iButtonApp::Scene::SceneStart});
+                break;
+            case KeyWriter::Error::NO_DETECT:
+                app->notify_red_blink();
+                break;
+            case KeyWriter::Error::CANNOT_WRITE:
+                app->cli_send_event(iButtonApp::CliEvent::CliWriteFail);
+                app->search_and_switch_to_previous_scene({iButtonApp::Scene::SceneStart});
+                break;
+            }
+        }
+    } else if(event->type == iButtonEvent::Type::EventTypeBack) {
+        consumed = false;
+        app->cli_send_event(iButtonApp::CliEvent::CliInterrupt);
+    }
+
+    return consumed;
+}
+
+void iButtonSceneCliWrite::on_exit(iButtonApp* app) {
+    Popup* popup = app->get_view_manager()->get_popup();
+
+    popup_set_header(popup, NULL, 0, 0, AlignCenter, AlignBottom);
+    popup_set_text(popup, NULL, 0, 0, AlignCenter, AlignTop);
+    popup_set_icon(popup, -1, -1, I_DolphinWait_61x59);
+
+    app->get_key_worker()->stop_write();
+}
\ No newline at end of file
diff --git a/applications/ibutton/scene/ibutton-scene-cli-write.h b/applications/ibutton/scene/ibutton-scene-cli-write.h
new file mode 100644
index 00000000..6d37b7a1
--- /dev/null
+++ b/applications/ibutton/scene/ibutton-scene-cli-write.h
@@ -0,0 +1,12 @@
+#pragma once
+#include "ibutton-scene-generic.h"
+
+class iButtonSceneCliWrite : public iButtonScene {
+public:
+    void on_enter(iButtonApp* app) final;
+    bool on_event(iButtonApp* app, iButtonEvent* event) final;
+    void on_exit(iButtonApp* app) final;
+
+private:
+    uint16_t timeout;
+};
\ No newline at end of file