Archive: New info page with md5 hash

Author: Willy-JL

ChangeLog.md

@@ -13,6 +13,7 @@
   - GPIO: Pokemon Trading (by @EstebanFuentealba)
   - GPIO: Badge (by @jamisonderek)
   - Tools: Tone Generator (by @GEMISIS)
+- Archive: New info page with md5 hash (by @Willy-JL)
 - OFW: NFC: Add Slix capabilities, some bugfixes (by @gornekich)
 - OFW: JS: Added `math.is_equal()` and `math.EPSILON` (by @skotopes)
 

applications/main/archive/scenes/archive_scene_info.c

@@ -1,5 +1,6 @@
 #include "../archive_i.h"
 #include "../helpers/archive_browser.h"
+#include <mbedtls/md5.h>
 
 #define TAG "Archive"
 
@@ -13,7 +14,7 @@ void archive_scene_info_widget_callback(GuiButtonType result, InputType type, vo
     }
 }
 
-uint32_t archive_scene_info_dirwalk(void* context) {
+static uint32_t archive_scene_info_dirwalk(void* context) {
     furi_assert(context);
     ArchiveApp* instance = context;
 
@@ -26,8 +27,7 @@ uint32_t archive_scene_info_dirwalk(void* context) {
         while(scene_manager_get_scene_state(instance->scene_manager, ArchiveAppSceneInfo)) {
             DirWalkResult result = dir_walk_read(dir_walk, NULL, &fileinfo);
             if(result == DirWalkError) {
-                snprintf(buf, sizeof(buf), "Size: \e#Error\e#");
-                widget_element_text_box_set_text(instance->element, buf);
+                widget_element_text_box_set_text(instance->element, "Size: \e#Error\e#");
                 break;
             }
             bool is_last = result == DirWalkLast;
@@ -51,8 +51,7 @@ uint32_t archive_scene_info_dirwalk(void* context) {
             if(is_last) break;
         }
     } else {
-        snprintf(buf, sizeof(buf), "Size: \e#Error\e#");
-        widget_element_text_box_set_text(instance->element, buf);
+        widget_element_text_box_set_text(instance->element, "Size: \e#Error\e#");
     }
     dir_walk_free(dir_walk);
     furi_record_close(RECORD_STORAGE);
@@ -61,6 +60,64 @@ uint32_t archive_scene_info_dirwalk(void* context) {
     return 0;
 }
 
+static uint32_t archive_scene_info_md5sum(void* context) {
+    furi_assert(context);
+    ArchiveApp* instance = context;
+
+    // Based on lib/toolbox/md5_calc.c
+    File* file = storage_file_alloc(furi_record_open(RECORD_STORAGE));
+    ArchiveFile_t* current = archive_get_current_file(instance->browser);
+    bool result = false;
+    if(storage_file_open(
+           file, furi_string_get_cstr(current->path), FSAM_READ, FSOM_OPEN_EXISTING)) {
+        uint8_t output[16];
+        const size_t size_to_read = 512;
+        uint8_t* data = malloc(size_to_read);
+        mbedtls_md5_context* md5_ctx = malloc(sizeof(mbedtls_md5_context));
+        mbedtls_md5_init(md5_ctx);
+        mbedtls_md5_starts(md5_ctx);
+        while(scene_manager_get_scene_state(instance->scene_manager, ArchiveAppSceneInfo)) {
+            size_t read_size = storage_file_read(file, data, size_to_read);
+            if(storage_file_get_error(file) != FSE_OK) {
+                break;
+            }
+            if(read_size == 0) {
+                result = true;
+                break;
+            }
+            mbedtls_md5_update(md5_ctx, data, read_size);
+        }
+        mbedtls_md5_finish(md5_ctx, output);
+        if(result) {
+            FuriString* md5 = furi_string_alloc_set("MD5: \e*");
+            for(size_t i = 0; i < sizeof(output); i++) {
+                furi_string_cat_printf(md5, "%02x", output[i]);
+            }
+            furi_string_cat(md5, "\e*");
+            widget_element_text_box_set_text(instance->element, furi_string_get_cstr(md5));
+        }
+        free(md5_ctx);
+        free(data);
+        storage_file_close(file);
+    }
+    storage_file_free(file);
+    furi_record_close(RECORD_STORAGE);
+
+    if(!result) {
+        char buf[64];
+        strlcpy(buf, "MD5: \e*Error", sizeof(buf));
+        uint8_t padding = 32 - strlen("Error");
+        for(uint8_t i = 0; i < padding; i++) {
+            strlcat(buf, " ", sizeof(buf));
+        }
+        strlcat(buf, "\e*", sizeof(buf));
+        widget_element_text_box_set_text(instance->element, buf);
+    }
+
+    view_dispatcher_switch_to_view(instance->view_dispatcher, ArchiveViewWidget);
+    return 0;
+}
+
 void archive_scene_info_on_enter(void* context) {
     furi_assert(context);
     ArchiveApp* instance = context;
@@ -77,21 +134,12 @@ void archive_scene_info_on_enter(void* context) {
     // Filename
     path_extract_filename(current->path, filename, false);
     snprintf(buf, sizeof(buf), "\e#%s\e#", furi_string_get_cstr(filename));
-    widget_add_text_box_element(
-        instance->widget, 0, 0, 128, 24, AlignLeft, AlignCenter, buf, false);
+    widget_add_text_box_element(instance->widget, 1, 1, 126, 13, AlignLeft, AlignTop, buf, true);
 
     // Directory path
     path_extract_dirname(furi_string_get_cstr(current->path), dirname);
     widget_add_text_box_element(
-        instance->widget,
-        0,
-        42,
-        128,
-        12,
-        AlignLeft,
-        AlignCenter,
-        furi_string_get_cstr(dirname),
-        false);
+        instance->widget, 1, 12, 126, 20, AlignLeft, AlignTop, furi_string_get_cstr(dirname), true);
 
     // This one to return and cursor select this file
     path_extract_filename_no_ext(furi_string_get_cstr(current->path), filename);
@@ -125,18 +173,33 @@ void archive_scene_info_on_enter(void* context) {
             show,
             units[unit]);
     }
-    instance->element = widget_add_text_box_element(
-        instance->widget, 0, 24, 128, 24, AlignLeft, AlignCenter, buf, true);
+    WidgetElement* element = widget_add_text_box_element(
+        instance->widget, 1, 31, 126, 13, AlignLeft, AlignTop, buf, true);
+
+    // MD5 hash
+    if(!is_dir) {
+        strlcpy(buf, "MD5: \e*Loading...", sizeof(buf));
+        uint8_t padding = 32 - strlen("Loading...");
+        for(uint8_t i = 0; i < padding; i++) {
+            strlcat(buf, " ", sizeof(buf));
+        }
+        strlcat(buf, "\e*", sizeof(buf));
+        element = widget_add_text_box_element(
+            instance->widget, 0, 43, 128, 24, AlignRight, AlignTop, buf, false);
+    }
+
+    instance->element = element;
     furi_record_close(RECORD_STORAGE);
 
     view_dispatcher_switch_to_view(instance->view_dispatcher, ArchiveViewWidget);
 
-    if(is_dir) {
-        scene_manager_set_scene_state(instance->scene_manager, ArchiveAppSceneInfo, true);
-        instance->thread = furi_thread_alloc_ex(
-            "ArchiveInfoDirWalk", 1024, (FuriThreadCallback)archive_scene_info_dirwalk, instance);
-        furi_thread_start(instance->thread);
-    }
+    scene_manager_set_scene_state(instance->scene_manager, ArchiveAppSceneInfo, true);
+    instance->thread = furi_thread_alloc_ex(
+        "ArchiveInfoWorker",
+        1024,
+        (FuriThreadCallback)(is_dir ? archive_scene_info_dirwalk : archive_scene_info_md5sum),
+        instance);
+    furi_thread_start(instance->thread);
 }
 
 bool archive_scene_info_on_event(void* context, SceneManagerEvent event) {