Adding NameChanger Service - Reads and sets name from file at boot.

applications/services/application.fam

@@ -10,5 +10,6 @@ App(
         "loader",
         "power",
 		"ibuttonsrv",
+        "namechangersrv",
     ],
 )

applications/services/namechangersrv/application.fam

@@ -0,0 +1,7 @@
+App(
+    appid="namechangersrv",
+    apptype=FlipperAppType.STARTUP,
+    entry_point="namechanger_on_system_start",
+    requires=["storage"],
+    order=130,
+)

applications/services/namechangersrv/namechangersrv.c

@@ -0,0 +1,178 @@
+#include "namechangersrv.h"
+#include "m-string.h"
+#include <toolbox/path.h>
+#include <flipper_format/flipper_format.h>
+
+void namechanger_on_system_start() {
+    Storage* storage = furi_record_open(RECORD_STORAGE);
+    FlipperFormat* file = flipper_format_file_alloc(storage);
+
+    string_t NAMEHEADER;
+    string_init_set_str(NAMEHEADER, "Flipper Name File");
+
+    string_t folderpath;
+    string_init_set_str(folderpath, "/ext/dolphin");
+
+    string_t filepath;
+    string_init_set_str(filepath, "/ext/dolphin/name.txt");
+
+    //Make dir if doesn't exist
+    if(storage_simply_mkdir(storage, string_get_cstr(folderpath))) {
+        bool result = false;
+
+        string_t data;
+        string_init(data);
+
+        do {
+            if(!flipper_format_file_open_existing(file, string_get_cstr(filepath))) {
+                break;
+            }
+
+            // header
+            uint32_t version;
+
+            if(!flipper_format_read_header(file, data, &version)) {
+                break;
+            }
+
+            if(string_cmp_str(data, string_get_cstr(NAMEHEADER)) != 0) {
+                break;
+            }
+
+            if(version != 1) {
+                break;
+            }
+
+            // get Name
+            if(!flipper_format_read_string(file, "Name", data)) {
+                break;
+            }
+
+            result = true;
+        } while(false);
+
+        flipper_format_free(file);
+
+        if(!result) {
+            //file not good - write new one
+            FlipperFormat* file = flipper_format_file_alloc(storage);
+
+            bool res = false;
+
+            string_t name;
+            string_init_set_str(name, furi_hal_version_get_name_ptr());
+
+            do {
+                // Open file for write
+                if(!flipper_format_file_open_always(file, string_get_cstr(filepath))) {
+                    break;
+                }
+
+                // Write header
+                if(!flipper_format_write_header_cstr(file, string_get_cstr(NAMEHEADER), 1)) {
+                    break;
+                }
+
+                // Write comments
+                if(!flipper_format_write_comment_cstr(
+                       file,
+                       "Changing the value below will change your FlipperZero device name.")) {
+                    break;
+                }
+
+                if(!flipper_format_write_comment_cstr(
+                       file,
+                       "Note: This is limited to 8 characters using the following: a-z, A-Z, 0-9, and _")) {
+                    break;
+                }
+
+                if(!flipper_format_write_comment_cstr(
+                       file, "It can contain other characters but use at your own risk.")) {
+                    break;
+                }
+
+                //Write name
+                if(!flipper_format_write_string_cstr(file, "Name", string_get_cstr(name))) {
+                    break;
+                }
+
+                res = true;
+            } while(false);
+
+            flipper_format_free(file);
+
+            if(!res) {
+                FURI_LOG_E(TAG, "Save failed.");
+            }
+
+            string_clear(name);
+        } else {
+            string_strim(data);
+            FURI_LOG_I(TAG, "data: %s", data);
+
+            if(!string_size(data)) {
+                //Empty file - get default name and write to file.
+                FlipperFormat* file = flipper_format_file_alloc(storage);
+
+                bool res = false;
+
+                string_t name;
+                string_init_set_str(name, furi_hal_version_get_name_ptr());
+
+                do {
+                    // Open file for write
+                    if(!flipper_format_file_open_always(file, string_get_cstr(filepath))) {
+                        break;
+                    }
+
+                    // Write header
+                    if(!flipper_format_write_header_cstr(file, string_get_cstr(NAMEHEADER), 1)) {
+                        break;
+                    }
+
+                    // Write comments
+                    if(!flipper_format_write_comment_cstr(
+                           file,
+                           "Changing the value below will change your FlipperZero device name.")) {
+                        break;
+                    }
+
+                    if(!flipper_format_write_comment_cstr(
+                           file,
+                           "Note: This is limited to 8 characters using the following: a-z, A-Z, 0-9, and _")) {
+                        break;
+                    }
+
+                    if(!flipper_format_write_comment_cstr(
+                           file, "It cannot contain any other characters.")) {
+                        break;
+                    }
+
+                    //Write name
+                    if(!flipper_format_write_string_cstr(file, "Name", string_get_cstr(name))) {
+                        break;
+                    }
+
+                    res = true;
+                } while(false);
+
+                flipper_format_free(file);
+
+                if(!res) {
+                    FURI_LOG_E(TAG, "Save failed.");
+                }
+
+                string_clear(name);
+            } else {
+                //set name from file
+                furi_hal_version_set_custom_name(string_get_cstr(data));
+            }
+        }
+
+        string_clear(data);
+    }
+
+    string_clear(filepath);
+    string_clear(folderpath);
+    furi_record_close(RECORD_STORAGE);
+}

applications/services/namechangersrv/namechangersrv.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include <furi_hal.h>
+#include <storage/storage.h>
+
+#define NAMECHANGER_TEXT_STORE_SIZE 9
+#define NAMECHANGER_HEADER "Flipper Name File"
+
+#define TAG "NameChangerSRV"

firmware/targets/f7/furi_hal/furi_hal_version.c

@@ -90,6 +90,16 @@ typedef struct {
 
 static FuriHalVersion furi_hal_version = {0};
 
+void furi_hal_version_set_custom_name(const char* name) {
+    if((name != NULL) && ((strlen(name) >= 1) && (strlen(name) <= 8))) {
+        strlcpy(furi_hal_version.name, name, FURI_HAL_VERSION_ARRAY_NAME_LENGTH);
+        snprintf(
+            furi_hal_version.device_name, FURI_HAL_VERSION_DEVICE_NAME_LENGTH, "xFlipper %s", name);
+
+        furi_hal_version.device_name[0] = AD_TYPE_COMPLETE_LOCAL_NAME;
+    }
+}
+
 static void furi_hal_version_set_name(const char* name) {
     if(name != NULL) {
         strlcpy(furi_hal_version.name, name, FURI_HAL_VERSION_ARRAY_NAME_LENGTH);

firmware/targets/furi_hal_include/furi_hal_version.h

@@ -127,6 +127,9 @@ FuriHalVersionDisplay furi_hal_version_get_hw_display();
  */
 uint32_t furi_hal_version_get_hw_timestamp();
 
+// Set custom name
+void furi_hal_version_set_custom_name(const char* name);
+
 /** Get pointer to target name
  *
  * @return     Hardware Name C-string