Reworked mdiary_scanner + added GUI support for gpg encrypted files

glade/mainWindow.glade

@@ -3,6 +3,11 @@
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkTextBuffer" id="entryTextBuffer"/>
+  <object class="GtkImage" id="imageDecrypt">
+    <property name="visible">True</property>
+    <property name="can_focus">False</property>
+    <property name="icon_name">changes-prevent-symbolic.symbolic</property>
+  </object>
   <object class="GtkPopover" id="popoverWorkspace">
     <property name="can_focus">False</property>
     <child>
@@ -401,7 +406,7 @@
           <object class="GtkBox">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
-            <property name="spacing">4</property>
+            <property name="spacing">6</property>
             <child>
               <object class="GtkMenuButton">
                 <property name="visible">True</property>
@@ -446,6 +451,20 @@
                 <property name="position">0</property>
               </packing>
             </child>
+            <child>
+              <object class="GtkButton" id="buttonDecrypt">
+                <property name="label" translatable="yes">Decrypt GPG</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <property name="image">imageDecrypt</property>
+                <property name="always_show_image">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
           </object>
         </child>
       </object>

src/mainwindow.c

@@ -406,6 +406,10 @@ static void mainWindow_connect_signals(struct mainWindow *mainWindow)
 			 "changed",
 			 (GCallback) mainWindow_workspace_search_changed,
 			 mainWindow);
+	g_signal_connect(mainWindow->buttonDecrypt,
+			 "clicked",
+			 (GCallback) mainWindow_decrypt_gpg_clicked,
+			 mainWindow);
 }
 
 /**
@@ -448,6 +452,7 @@ struct mainWindow *mainWindow_new()
 	mainWindow->buttonClearSearch	  = GTK_WIDGET(gtk_builder_get_object(builder, "buttonClearSearch"));
 	mainWindow->headerBar		  = GTK_WIDGET(gtk_builder_get_object(builder, "headerBar"));
 	mainWindow->labelDateToDate	  = GTK_WIDGET(gtk_builder_get_object(builder, "label_date_to_date"));
+	mainWindow->buttonDecrypt	  = GTK_WIDGET(gtk_builder_get_object(builder, "buttonDecrypt"));
 	mainWindow->entryListView         = GTK_TREE_VIEW(gtk_builder_get_object(builder, "entryListView"));
 	mainWindow->entryListSelection    = GTK_TREE_SELECTION(gtk_builder_get_object(builder, "entryListSelection"));
 	mainWindow->textBuffer		  = GTK_TEXT_BUFFER(gtk_builder_get_object(builder, "entryTextBuffer"));
@@ -714,23 +719,31 @@ static void mainWindow_show_error(struct mainWindow *mainWindow, gchar *text)
 	gtk_widget_destroy(dialog);
 }
 
-void mainWindow_switch_workspace(struct mainWindow *mainWindow, gchar *path)
+void mainWindow_switch_workspace(struct mainWindow *mainWindow, gchar *path, gboolean gpg_enabled)
 {
+	struct mdiary_scanner *mdiary_scanner;
+
 	g_print("Switching workspace to %s.\n", path);
 	gtk_popover_popdown(GTK_POPOVER(mainWindow->popoverWorkspace));
 	mainWindow_set_meta_information(mainWindow, 0, 0, TRUE);
 	mdiary_reset_store(mainWindow->entryListStore, mainWindow->completionListStore);
-	if (mdiary_scan_to_store(path, mainWindow->entryListStore, mainWindow->completionListStore)) {
+
+	mdiary_scanner = mdiary_scanner_new(gpg_enabled);
+	if (mdiary_scan_to_store(mdiary_scanner, path, mainWindow->entryListStore, mainWindow->completionListStore)) {
 		mainWindow_set_meta_information(mainWindow,
-						mdiary_get_time_earliest(), mdiary_get_time_latest(),
+						mdiary_scanner->time_earliest, mdiary_scanner->time_latest,
 						FALSE);
 		mainWindow_add_recent_workspace(mainWindow, path, FALSE);
 		gtk_header_bar_set_subtitle(GTK_HEADER_BAR(mainWindow->headerBar), path);
+		if (mdiary_scanner->entries_encrypted > 0 && !gpg_enabled)
+			gtk_widget_set_visible(mainWindow->buttonDecrypt, TRUE);
+		else
+			gtk_widget_set_visible(mainWindow->buttonDecrypt, FALSE);
 	} else {
 		gtk_header_bar_set_subtitle(GTK_HEADER_BAR(mainWindow->headerBar), "No workspace opened.");
 		mainWindow_show_error(mainWindow, "Could not open workspace or no entries were found in it.");
 	}
-
+	mdiary_scanner_free(mdiary_scanner);
 }
 
 void mainWindow_workspaceListClicked(GtkWidget         *widget,
@@ -749,7 +762,7 @@ void mainWindow_workspaceListClicked(GtkWidget         *widget,
 	selection = gtk_tree_view_get_selection(mainWindow->workspaceListView);
 	if (gtk_tree_selection_get_selected(selection, &model, &iter)) {
 		gtk_tree_model_get(model, &iter, WSCOL_PATH, &path, -1);
-		mainWindow_switch_workspace(mainWindow, path);
+		mainWindow_switch_workspace(mainWindow, path, FALSE);
 		g_free(path);
 	}
 }
@@ -777,9 +790,26 @@ void mainWindow_otherWorkspaceClicked(GtkWidget *widget, gpointer user_data)
 		char *directory;
 
 		directory = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
-		mainWindow_switch_workspace(mainWindow, directory);
+		mainWindow_switch_workspace(mainWindow, directory, FALSE);
 		g_free(directory);
 	}
 
 	gtk_widget_destroy (dialog);
 }
+
+void mainWindow_decrypt_gpg_clicked(GtkWidget *widget, gpointer user_data)
+{
+	struct mainWindow *mainWindow = (struct mainWindow *)user_data;
+	GtkTreeIter iter;
+	gchar *temp;
+
+	if (gtk_tree_model_get_iter_first(GTK_TREE_MODEL(mainWindow->workspaceListStore), &iter)) {
+		gtk_tree_model_get(GTK_TREE_MODEL(mainWindow->workspaceListStore), &iter,
+				   WSCOL_PATH, &temp,
+				   -1);
+		mainWindow_switch_workspace(mainWindow, temp, TRUE);
+		g_free(temp);
+	} else {
+		g_print("ERROR: This should never happen...\n");
+	}
+}

src/mainwindow.h

@@ -31,6 +31,7 @@ struct mainWindow {
 	GtkWidget *buttonClearSearch;
 	GtkWidget *headerBar;
 	GtkWidget *labelDateToDate;
+	GtkWidget *buttonDecrypt;
 	GtkTreeView *entryListView;
 	GtkTreeSelection *entryListSelection;
 	GtkTextBuffer *textBuffer;
@@ -82,6 +83,7 @@ void mainWindow_workspace_search_changed(GtkWidget *widget, gpointer user_data);
 void mainWindow_checkDate(GtkWidget *widget, gint event, gpointer user_data);
 void mainWindow_dateIconPress(GtkWidget *widget, gint icon_pos, gint event, gpointer user_data);
 void mainWindow_add_recent_workspace(struct mainWindow *mainWindow, gchar *path, gboolean append);
-void mainWindow_switch_workspace(struct mainWindow *mainWindow, gchar *path);
+void mainWindow_switch_workspace(struct mainWindow *mainWindow, gchar *path, gboolean gpg_enabled);
+void mainWindow_decrypt_gpg_clicked(GtkWidget *widget, gpointer user_data);
 
 #endif /* MAINWINDOW_H */

src/mdiary.c

@@ -1,8 +1,5 @@
 #include "mdiary.h"
 
-static gint64 time_earliest;
-static gint64 time_latest;
-
 /**
  * @brief The dateFormats struct contains regex/date-info pairs to parse different date formats.
  */
@@ -217,13 +214,49 @@ static GList *mdiary_add_tags_from_string(gchar *string)
 	return ret;
 }
 
-static void mdiary_add_file_to_store(gchar *filename, GtkListStore *entryListStore, GtkListStore *autoCompletion)
+/**
+ * @brief mdiary_get_line_from_string WARNING: This does modify str and the content of str!
+ * @param str The pointer to the string where to search the linebreak
+ * @return The current line (null terminated). Do not free, this is a direct pointer into the original string.
+ */
+static gchar *mdiary_get_line_from_string(gchar **str_ptr)
 {
-	GFile *file;
+	gchar *start;
+	gchar *str;
+
+	if (!str_ptr || !*str_ptr | !**str_ptr)
+		return NULL;
+
+	str   = *str_ptr;
+	start = str;
+
+	while (*str != '\n' && *str != '\0') {
+		str++;
+	}
+
+	*str = '\0';
+	*str_ptr = ++str;
+
+	return start;
+}
+
+/**
+ * @brief mdiary_add_file_to_store
+ * @param filename
+ * @param content NULL when the file shall be read by the function. Otherwise the file content.
+ * @param entryListStore
+ * @param autoCompletion
+ */
+static void mdiary_add_file_to_store(struct mdiary_scanner *mdiary_scanner,
+				     gchar *filename, gchar *content,
+				     GtkListStore *entryListStore, GtkListStore *autoCompletion)
+{
+	GFile *file = NULL;
 	GError *err = NULL;
-	GFileInputStream *stream;
-	GDataInputStream *dstream;
-	gchar *line;
+	GFileInputStream *stream = NULL;
+	GDataInputStream *dstream = NULL;
+	gchar *line = NULL;
+	gchar *content_ptr = NULL;
 
 	GDateTime *datetime = NULL;
 	gchar *title   = NULL;
@@ -234,16 +267,21 @@ static void mdiary_add_file_to_store(gchar *filename, GtkListStore *entryListSto
 
 	g_message("Add file: %s\n", filename);
 
-	file = g_file_new_for_path(filename);
-	stream = g_file_read(file, NULL, &err);
-	if (err != NULL) {
-		g_print("PARSER: %s\n", filename, err->message);
-		g_error_free(err);
-		return;
+	if (!content) {
+		file = g_file_new_for_path(filename);
+		stream = g_file_read(file, NULL, &err);
+		if (err != NULL) {
+			g_print("PARSER: %s\n", filename, err->message);
+			g_error_free(err);
+			return;
+		}
+		dstream = g_data_input_stream_new(G_INPUT_STREAM(stream));
 	}
-	dstream = g_data_input_stream_new(G_INPUT_STREAM(stream));
 
-	while (line = g_data_input_stream_read_line(G_DATA_INPUT_STREAM(dstream), NULL, NULL, NULL)) {
+	content_ptr = content;
+
+	while (line = (content ? mdiary_get_line_from_string(&content_ptr) :
+		       g_data_input_stream_read_line(G_DATA_INPUT_STREAM(dstream), NULL, NULL, NULL))) {
 		if (header_state == 0) {
 			if (!datetime) {
 				datetime = mdiary_get_date_from_string_ext(line, "Date: .*", "");
@@ -301,6 +339,7 @@ static void mdiary_add_file_to_store(gchar *filename, GtkListStore *entryListSto
 		title = g_strdup("Untitled");
 	}
 
+	mdiary_scanner->entries_added++;
 	mdiary_add_entry_to_store(entryListStore,
 				  autoCompletion,
 				  title,
@@ -309,10 +348,10 @@ static void mdiary_add_file_to_store(gchar *filename, GtkListStore *entryListSto
 				  summary,
 				  text->str);
 
-	if (g_date_time_to_unix(datetime) > time_latest)
-		time_latest = g_date_time_to_unix(datetime);
-	if (g_date_time_to_unix(datetime) < time_earliest)
-		time_earliest = g_date_time_to_unix(datetime);
+	if (g_date_time_to_unix(datetime) > mdiary_scanner->time_latest)
+		mdiary_scanner->time_latest = g_date_time_to_unix(datetime);
+	if (g_date_time_to_unix(datetime) < mdiary_scanner->time_earliest)
+		mdiary_scanner->time_earliest = g_date_time_to_unix(datetime);
 
 	g_input_stream_close(G_INPUT_STREAM(dstream), NULL, NULL);
 	g_input_stream_close(G_INPUT_STREAM(stream), NULL, NULL);
@@ -323,7 +362,35 @@ static void mdiary_add_file_to_store(gchar *filename, GtkListStore *entryListSto
 	g_object_unref(file);
 }
 
-static void mdiary_recurse_and_collect(gchar *base_dir,
+static void mdiary_add_gpg_to_store(struct mdiary_scanner *mdiary_scanner,
+				    gchar *filename,
+				    GtkListStore *entryListStore, GtkListStore *autoCompletion)
+{
+	gchar *cmd	  = NULL;
+	gchar *cmd_stdout = NULL;
+	gchar *cmd_stderr = NULL;
+	gint exit_status  = 0;
+
+	cmd = g_strdup_printf("gpg --decrypt %s", filename);
+
+	if (g_spawn_command_line_sync(cmd, &cmd_stdout, &cmd_stderr, &exit_status, NULL) && exit_status == 0) {
+		g_print("GPG: Decryption OK!\n");
+		mdiary_add_file_to_store(mdiary_scanner, filename, cmd_stdout, entryListStore, autoCompletion);
+	} else {
+		g_print("GPG: Decryption of message failed!\n"
+			"---------- SNIP ----------\n"
+			"%s"
+			"---------- SNIP ----------\n",
+			cmd_stderr ? cmd_stderr : "Unknown error.");
+	}
+
+	g_free(cmd);
+	g_free(cmd_stdout);
+	g_free(cmd_stderr);
+}
+
+static void mdiary_recurse_and_collect(struct mdiary_scanner *mdiary_scanner,
+				       gchar *base_dir,
 				       GtkListStore *entryListStore,
 				       GtkListStore *autoCompletion,
 				       guint max_level)
@@ -343,10 +410,28 @@ static void mdiary_recurse_and_collect(gchar *base_dir,
 				regex = g_regex_new("\\.md$", G_REGEX_CASELESS, 0, NULL);
 				if (g_regex_match(regex, fullPath, 0, &match_info) &&
 						g_match_info_matches(match_info))
-					mdiary_add_file_to_store(fullPath, entryListStore, autoCompletion);
+					mdiary_add_file_to_store(mdiary_scanner,
+								 fullPath, NULL,
+								 entryListStore, autoCompletion);
 				g_regex_unref(regex);
+
+
+				regex = g_regex_new("\\.md.gpg$", G_REGEX_CASELESS, 0, NULL);
+				if (g_regex_match(regex, fullPath, 0, &match_info) &&
+						g_match_info_matches(match_info)) {
+					mdiary_scanner->entries_encrypted++;
+					if (mdiary_scanner->gpg_enabled)
+						mdiary_add_gpg_to_store(mdiary_scanner,
+									fullPath,
+									entryListStore, autoCompletion);
+				}
+				g_regex_unref(regex);
+
 			} else if (g_file_test(fullPath, G_FILE_TEST_IS_DIR) && max_level) {
-				mdiary_recurse_and_collect(fullPath, entryListStore, autoCompletion, max_level--);
+				mdiary_recurse_and_collect(mdiary_scanner,
+							   fullPath,
+							   entryListStore, autoCompletion,
+							   max_level--);
 			}
 			g_free(fullPath);
 		}
@@ -354,40 +439,41 @@ static void mdiary_recurse_and_collect(gchar *base_dir,
 	}
 }
 
+struct mdiary_scanner *mdiary_scanner_new(gboolean gpg_enabled)
+{
+	struct mdiary_scanner *mdiary_scanner;
+
+	mdiary_scanner = malloc(sizeof(struct mdiary_scanner));
+	if (mdiary_scanner) {
+		mdiary_scanner->time_earliest = G_MAXINT64;
+		mdiary_scanner->time_latest   = 0;
+		mdiary_scanner->entries_added = 0;
+		mdiary_scanner->gpg_enabled   = gpg_enabled;
+		mdiary_scanner->entries_encrypted = 0;
+	}
+}
+
+void *mdiary_scanner_free(struct mdiary_scanner *mdiary_scanner)
+{
+	free(mdiary_scanner);
+}
+
 /**
  * @brief mdiary_scan_to_store recursively (max. 5 levels) scans the base_dir into the entryListStore.
  * @param base_dir The base directory to start scanning in
  * @param entryListStore Target GtkListStore
- * @return The amount of entries in the list (total across multiple scans)
+ * @return The amount of entries added in total across all scans
  */
-gint mdiary_scan_to_store(gchar *base_dir, GtkListStore *entryListStore, GtkListStore *autoCompletion)
+gint mdiary_scan_to_store(struct mdiary_scanner *mdiary_scanner,
+			  gchar *base_dir,
+			  GtkListStore *entryListStore, GtkListStore *autoCompletion)
 {
-	time_earliest = G_MAXINT64;
-	time_latest   = 0;
-	mdiary_recurse_and_collect(base_dir, entryListStore, autoCompletion, 5);
 
-	return gtk_tree_model_iter_n_children(GTK_TREE_MODEL(entryListStore), NULL);
+	mdiary_recurse_and_collect(mdiary_scanner, base_dir, entryListStore, autoCompletion, 5);
+
+	return mdiary_scanner->entries_added;
 }
 
-/**
- * @brief mdiary_get_time_earliest getter function for time_earliest. Call mdiary_scan_to_store before using.
- * @return time_earliest
- */
-gint64 mdiary_get_time_earliest(void)
-{
-	return time_earliest;
-}
-
-/**
- * @brief mdiary_get_time_earliest getter function for time_latest. Call mdiary_scan_to_store before using.
- * @return time_latest
- */
-gint64 mdiary_get_time_latest(void)
-{
-	return time_latest;
-}
-
-
 /**
  * @brief mainWindow_taglist_to_string concatenates a list with commas
  * @param list is a GList of strings to concatenate

src/mdiary.h

@@ -16,7 +16,19 @@ enum {
 	COL_COUNT
 };
 
-gint mdiary_scan_to_store(gchar *base_dir, GtkListStore *entryListStore, GtkListStore *autoCompletion);
+struct mdiary_scanner {
+	gboolean gpg_enabled;
+	gint64 time_earliest;
+	gint64 time_latest;
+	gint entries_added;
+	gint entries_encrypted;
+};
+
+struct mdiary_scanner *mdiary_scanner_new(gboolean gpg_enabled);
+void *mdiary_scanner_free(struct mdiary_scanner *mdiary_scanner);
+gint mdiary_scan_to_store(struct mdiary_scanner *mdiary_scanner,
+			  gchar *base_dir,
+			  GtkListStore *entryListStore, GtkListStore *autoCompletion);
 void mdiary_add_entry_to_store(GtkListStore *entryListStore,
 			       GtkListStore *autoCompletion,
 			       gchar *title,
@@ -26,8 +38,6 @@ void mdiary_add_entry_to_store(GtkListStore *entryListStore,
 			       gchar *text);
 GDateTime *mdiary_get_date_from_string_ext(gchar *string, gchar *prefix, gchar *suffix);
 GDateTime *mdiary_get_date_from_string(gchar *string);
-gint64 mdiary_get_time_earliest(void);
-gint64 mdiary_get_time_latest(void);
 void mdiary_reset_store(GtkListStore *entryListStore, GtkListStore *autoCompletion);
 
 #endif /* MDIARY_H */

src/settings.c

@@ -48,7 +48,7 @@ gboolean mdiary_load_settings(gchar *filename, struct mdiary_settings *settings)
 		gtk_tree_model_get(GTK_TREE_MODEL(settings->mainWindow->workspaceListStore), &iter,
 				   WSCOL_PATH, &temp,
 				   -1);
-		mainWindow_switch_workspace(settings->mainWindow, temp);
+		mainWindow_switch_workspace(settings->mainWindow, temp, FALSE);
 		g_free(temp);
 	}
 }