[evolution] Implement and use CamelSession::trust_prompt()

[Milan Crha <mcrha src gnome org>]

commit da874077bea944b433acab7a0e04d7c7ee01b473
Author: Milan Crha <mcrha redhat com>
Date:   Fri Dec 14 15:28:25 2012 +0100

    Implement and use CamelSession::trust_prompt()

 libemail-engine/e-mail-session.c |  130 ++++++++++++++++----
 mail/e-mail-config-auth-check.c  |    1 +
 mail/e-mail-ui-session.c         |  253 +++-----------------------------------
 mail/e-mail-ui-session.h         |    9 ++-
 4 files changed, 130 insertions(+), 263 deletions(-)
---
diff --git a/libemail-engine/e-mail-session.c b/libemail-engine/e-mail-session.c
index 18e336a..b5bf18d 100644
--- a/libemail-engine/e-mail-session.c
+++ b/libemail-engine/e-mail-session.c
@@ -149,6 +149,7 @@ static GQueue user_message_queue = { NULL, NULL, 0 };
 struct _user_message_msg {
 	MailMsg base;
 
+	EUserPrompter *prompter;
 	CamelSessionAlertType type;
 	gchar *prompt;
 	GSList *button_captions;
@@ -158,13 +159,29 @@ struct _user_message_msg {
 	guint ismain : 1;
 };
 
-static void user_message_exec (struct _user_message_msg *m,
-                               GCancellable *cancellable,
-                               GError **error);
+static void
+user_message_exec (struct _user_message_msg *m,
+                   GCancellable *cancellable,
+                   GError **error);
 
 static void
-user_message_response_free (struct _user_message_msg *m)
+user_message_response_cb (GObject *source,
+			  GAsyncResult *result,
+			  gpointer user_data)
 {
+	struct _user_message_msg *m = user_data;
+	GError *local_error = NULL;
+
+	m->result = e_user_prompter_prompt_finish (E_USER_PROMPTER (source), result, &local_error);
+
+	if (local_error) {
+		g_print ("%s: Failed to prompt user: %s\n", G_STRFUNC, local_error->message);
+		g_clear_error (&local_error);
+	}
+
+	/* waiting for a response? */
+	if (m && m->button_captions)
+		e_flag_set (m->done);
 
 	/* check for pendings */
 	if (!g_queue_is_empty (&user_message_queue)) {
@@ -177,30 +194,32 @@ user_message_response_free (struct _user_message_msg *m)
 	}
 }
 
-/* clicked, send back the reply */
-static void
-user_message_response (struct _user_message_msg *m)
-{
-	/* if !allow_cancel, then we've already replied */
-	if (m->button_captions) {
-		m->result = TRUE; //If Accepted
-		e_flag_set (m->done);
-	}
-
-	user_message_response_free (m);
-}
-
 static void
 user_message_exec (struct _user_message_msg *m,
                    GCancellable *cancellable,
                    GError **error)
 {
-	/* XXX This is a case where we need to be able to construct
-	 *     custom EAlerts without a predefined XML definition. */
 	if (m->ismain) {
-		/* Use DBUS to raise dialogs in clients and reply back.
-		 * For now say accept all. */
-		user_message_response (m);
+		const gchar *type = "";
+
+		switch (m->type) {
+		case CAMEL_SESSION_ALERT_INFO:
+			type = "info";
+			break;
+		case CAMEL_SESSION_ALERT_WARNING:
+			type = "warning";
+			break;
+		case CAMEL_SESSION_ALERT_ERROR:
+			type = "error";
+			break;
+		}
+
+		if (!m->prompter)
+			m->prompter = e_user_prompter_new ();
+
+		e_user_prompter_prompt (m->prompter, type, "",
+			m->prompt, NULL, FALSE, m->button_captions, cancellable,
+			user_message_response_cb, m);
 	} else
 		g_queue_push_tail (&user_message_queue, mail_msg_ref (m));
 }
@@ -211,6 +230,10 @@ user_message_free (struct _user_message_msg *m)
 	g_free (m->prompt);
 	g_slist_free_full (m->button_captions, g_free);
 	e_flag_free (m->done);
+
+	if (m->prompter)
+		g_object_unref (m->prompter);
+	m->prompter = NULL;
 }
 
 static MailMsgInfo user_message_info = {
@@ -1347,10 +1370,10 @@ static gint
 mail_session_alert_user (CamelSession *session,
                          CamelSessionAlertType type,
                          const gchar *prompt,
-                         GSList *button_captions)
+                         GSList *button_captions,
+			 GCancellable *cancellable)
 {
 	struct _user_message_msg *m;
-	GCancellable *cancellable;
 	gint result = -1;
 	GSList *iter;
 
@@ -1367,8 +1390,6 @@ mail_session_alert_user (CamelSession *session,
 	if (g_slist_length (button_captions) > 1)
 		mail_msg_ref (m);
 
-	cancellable = m->base.cancellable;
-
 	if (m->ismain)
 		user_message_exec (m, cancellable, &m->base.error);
 	else
@@ -1384,6 +1405,62 @@ mail_session_alert_user (CamelSession *session,
 	return result;
 }
 
+static CamelCertTrust
+mail_session_trust_prompt (CamelSession *session,
+			   const gchar *host,
+			   const gchar *certificate,
+			   guint32 certificate_errors,
+			   const GSList *issuers,
+			   GCancellable *cancellable)
+{
+	EUserPrompter *prompter;
+	ENamedParameters *parameters;
+	CamelCertTrust response;
+	gchar *errors_code;
+	const GSList *iter;
+	gint ii;
+
+	prompter = e_user_prompter_new ();
+	parameters = e_named_parameters_new ();
+	errors_code = g_strdup_printf ("%x", certificate_errors);
+
+	e_named_parameters_set (parameters, "host", host);
+	e_named_parameters_set (parameters, "certificate", certificate);
+	e_named_parameters_set (parameters, "certificate-errors", errors_code);
+
+	for (ii = 1, iter = issuers; iter; ii++, iter = iter->next) {
+		gchar *name;
+
+		if (!iter->data)
+			break;
+
+		name = g_strdup_printf ("issuer-%d", ii);
+		e_named_parameters_set (parameters, name, iter->data);
+		g_free (name);
+	}
+
+	switch (e_user_prompter_extension_prompt_sync (prompter, "ETrustPrompt::trust-prompt", parameters, NULL, cancellable, NULL)) {
+	case 0:
+		response = CAMEL_CERT_TRUST_NEVER;
+		break;
+	case 1:
+		response = CAMEL_CERT_TRUST_FULLY;
+		break;
+	case 2:
+		response = CAMEL_CERT_TRUST_TEMPORARY;
+		break;
+	default:
+		response = CAMEL_CERT_TRUST_UNKNOWN;
+		break;
+	}
+
+	g_free (errors_code);
+	e_named_parameters_free (parameters);
+	g_object_unref (prompter);
+
+	return response;
+}
+
 static CamelFilterDriver *
 mail_session_get_filter_driver (CamelSession *session,
                                 const gchar *type,
@@ -1748,6 +1825,7 @@ e_mail_session_class_init (EMailSessionClass *class)
 	session_class->get_password = mail_session_get_password;
 	session_class->forget_password = mail_session_forget_password;
 	session_class->alert_user = mail_session_alert_user;
+	session_class->trust_prompt = mail_session_trust_prompt;
 	session_class->get_filter_driver = mail_session_get_filter_driver;
 	session_class->lookup_addressbook = mail_session_lookup_addressbook;
 	session_class->get_socks_proxy = mail_session_get_socks_proxy;
diff --git a/mail/e-mail-config-auth-check.c b/mail/e-mail-config-auth-check.c
index d60e95f..d514872 100644
--- a/mail/e-mail-config-auth-check.c
+++ b/mail/e-mail-config-auth-check.c
@@ -148,6 +148,7 @@ mail_config_auth_check_update (EMailConfigAuthCheck *auth_check)
 
 	/* to be able to answer for invalid/self-signed server certificates */
 	CAMEL_SESSION_GET_CLASS (session)->alert_user = e_mail_ui_session_alert_user;
+	CAMEL_SESSION_GET_CLASS (session)->trust_prompt = e_mail_ui_session_trust_prompt;
 
 	service = camel_session_add_service (
 		session, "fake-uid",
diff --git a/mail/e-mail-ui-session.c b/mail/e-mail-ui-session.c
index 7f80d8b..fcb7ced 100644
--- a/mail/e-mail-ui-session.c
+++ b/mail/e-mail-ui-session.c
@@ -106,210 +106,6 @@ struct _SourceContext {
 	CamelService *service;
 };
 
-/* Support for CamelSession.alert_user() *************************************/
-
-static gpointer user_message_dialog;
-static GQueue user_message_queue = { NULL, NULL, 0 };
-
-struct _user_message_msg {
-	MailMsg base;
-
-	CamelSessionAlertType type;
-	gchar *prompt;
-	GSList *button_captions;
-	EFlag *done;
-
-	gint result;
-	guint ismain : 1;
-};
-
-static void user_message_exec (struct _user_message_msg *m,
-                               GCancellable *cancellable,
-                               GError **error);
-
-static void
-user_message_response_free (GtkDialog *dialog,
-                            gint button)
-{
-	struct _user_message_msg *m = NULL;
-
-	gtk_widget_destroy ((GtkWidget *) dialog);
-
-	user_message_dialog = NULL;
-
-	/* check for pendings */
-	if (!g_queue_is_empty (&user_message_queue)) {
-		GCancellable *cancellable;
-
-		m = g_queue_pop_head (&user_message_queue);
-		cancellable = m->base.cancellable;
-		user_message_exec (m, cancellable, &m->base.error);
-		mail_msg_unref (m);
-	}
-}
-
-/* clicked, send back the reply */
-static void
-user_message_response (GtkDialog *dialog,
-                       gint button,
-                       struct _user_message_msg *m)
-{
-	/* if !m or !button_captions, then we've already replied */
-	if (m && m->button_captions) {
-		m->result = button;
-		e_flag_set (m->done);
-	}
-
-	user_message_response_free (dialog, button);
-}
-
-static void
-user_message_exec (struct _user_message_msg *m,
-                   GCancellable *cancellable,
-                   GError **error)
-{
-	gboolean info_only;
-	GtkWindow *parent;
-	EShell *shell;
-	const gchar *error_type;
-	gint index;
-	GSList *iter;
-
-	info_only = g_slist_length (m->button_captions) <= 1;
-
-	if (!m->ismain && user_message_dialog != NULL && !info_only) {
-		g_queue_push_tail (&user_message_queue, mail_msg_ref (m));
-		return;
-	}
-
-	switch (m->type) {
-		case CAMEL_SESSION_ALERT_INFO:
-			error_type = "system:simple-info";
-			break;
-		case CAMEL_SESSION_ALERT_WARNING:
-			error_type = "system:simple-warning";
-			break;
-		case CAMEL_SESSION_ALERT_ERROR:
-			error_type = "system:simple-error";
-			break;
-		default:
-			error_type = NULL;
-			g_return_if_reached ();
-	}
-
-	shell = e_shell_get_default ();
-
-	/* try to find "mail" view to place the informational alert to */
-	if (info_only) {
-		GtkWindow *active_window;
-		EShellWindow *shell_window;
-		EShellView *shell_view;
-		EShellContent *shell_content = NULL;
-
-		/* check currently active window first, ... */
-		active_window = e_shell_get_active_window (shell);
-		if (active_window && E_IS_SHELL_WINDOW (active_window)) {
-			if (E_IS_SHELL_WINDOW (active_window)) {
-				shell_window = E_SHELL_WINDOW (active_window);
-				shell_view = e_shell_window_peek_shell_view (shell_window, "mail");
-				if (shell_view)
-					shell_content = e_shell_view_get_shell_content (shell_view);
-			}
-		}
-
-		if (!shell_content) {
-			GList *list, *iter;
-
-			list = gtk_application_get_windows (GTK_APPLICATION (shell));
-
-			/* ...then iterate through all opened
-			 * windows and pick one which has it */
-			for (iter = list; iter != NULL && !shell_content; iter = g_list_next (iter)) {
-				if (E_IS_SHELL_WINDOW (iter->data)) {
-					shell_window = iter->data;
-					shell_view = e_shell_window_peek_shell_view (shell_window, "mail");
-					if (shell_view)
-						shell_content = e_shell_view_get_shell_content (shell_view);
-				}
-			}
-		}
-
-		/* When no shell-content found, which might not happen,
-		 * but just in case, process the information alert like
-		 * usual, through an EAlertDialog machinery. */
-		if (shell_content) {
-			e_alert_submit (
-				E_ALERT_SINK (shell_content),
-				error_type, m->prompt, NULL);
-			return;
-		} else if (!m->ismain && user_message_dialog != NULL) {
-			g_queue_push_tail (&user_message_queue, mail_msg_ref (m));
-			return;
-		}
-	}
-
-	/* Pull in the active window from the shell to get a parent window */
-	parent = e_shell_get_active_window (shell);
-	user_message_dialog = e_alert_dialog_new_for_args (
-		parent, error_type, m->prompt, NULL);
-	g_object_set (user_message_dialog, "resizable", TRUE, NULL);
-
-	if (m->button_captions) {
-		GtkWidget *action_area;
-		GList *children, *child;
-
-		/* remove all default buttons and keep only those requested */
-		action_area = gtk_dialog_get_action_area (GTK_DIALOG (user_message_dialog));
-
-		children = gtk_container_get_children (GTK_CONTAINER (action_area));
-		for (child = children; child != NULL; child = child->next) {
-			gtk_container_remove (GTK_CONTAINER (action_area), child->data);
-		}
-
-		g_list_free (children);
-	}
-
-	for (index = 0, iter = m->button_captions; iter; index++, iter = iter->next) {
-		gtk_dialog_add_button (GTK_DIALOG (user_message_dialog), iter->data, index);
-	}
-
-	/* XXX This is a case where we need to be able to construct
-	 *     custom EAlerts without a predefined XML definition. */
-	if (m->ismain) {
-		gint response;
-
-		response = gtk_dialog_run (user_message_dialog);
-		user_message_response (
-			user_message_dialog, response, m);
-	} else {
-		gpointer user_data = m;
-
-		if (g_slist_length (m->button_captions) <= 1)
-			user_data = NULL;
-
-		g_signal_connect (
-			user_message_dialog, "response",
-			G_CALLBACK (user_message_response), user_data);
-		gtk_widget_show (user_message_dialog);
-	}
-}
-
-static void
-user_message_free (struct _user_message_msg *m)
-{
-	g_free (m->prompt);
-	g_slist_free_full (m->button_captions, g_free);
-	e_flag_free (m->done);
-}
-
-static MailMsgInfo user_message_info = {
-	sizeof (struct _user_message_msg),
-	(MailMsgDescFunc) NULL,
-	(MailMsgExecFunc) user_message_exec,
-	(MailMsgDoneFunc) NULL,
-	(MailMsgFreeFunc) user_message_free
-};
-
 /* Support for CamelSession.get_filter_driver () *****************************/
 
 static CamelFolder *
@@ -622,41 +418,27 @@ gint
 e_mail_ui_session_alert_user (CamelSession *session,
                               CamelSessionAlertType type,
                               const gchar *prompt,
-                              GSList *button_captions)
+                              GSList *button_captions,
+			      GCancellable *cancellable)
 {
-	struct _user_message_msg *m;
-	GCancellable *cancellable;
-	gint result = -1;
-	GSList *iter;
-
-	m = mail_msg_new (&user_message_info);
-	m->ismain = mail_in_main_thread ();
-	m->type = type;
-	m->prompt = g_strdup (prompt);
-	m->done = e_flag_new ();
-	m->button_captions = g_slist_copy (button_captions);
-
-	for (iter = m->button_captions; iter; iter = iter->next)
-		iter->data = g_strdup (iter->data);
-
-	if (g_slist_length (button_captions) > 1)
-		mail_msg_ref (m);
+	g_type_ensure (E_TYPE_MAIL_UI_SESSION);
 
-	cancellable = m->base.cancellable;
-
-	if (m->ismain)
-		user_message_exec (m, cancellable, &m->base.error);
-	else
-		mail_msg_main_loop_push (m);
+	return CAMEL_SESSION_CLASS (e_mail_ui_session_parent_class)->alert_user (
+		session, type, prompt, button_captions, cancellable);
+}
 
-	if (g_slist_length (button_captions) > 1) {
-		e_flag_wait (m->done);
-		result = m->result;
-		mail_msg_unref (m);
-	} else if (m->ismain)
-		mail_msg_unref (m);
+CamelCertTrust
+e_mail_ui_session_trust_prompt (CamelSession *session,
+				const gchar *host,
+				const gchar *certificate,
+				guint32 certificate_errors,
+				const GSList *issuers,
+				GCancellable *cancellable)
+{
+	g_type_ensure (E_TYPE_MAIL_UI_SESSION);
 
-	return result;
+	return CAMEL_SESSION_CLASS (e_mail_ui_session_parent_class)->trust_prompt (
+		session, host, certificate, certificate_errors, issuers, cancellable);
 }
 
 static CamelFilterDriver *
@@ -700,7 +482,6 @@ e_mail_ui_session_class_init (EMailUISessionClass *class)
 	session_class = CAMEL_SESSION_CLASS (class);
 	session_class->add_service = mail_ui_session_add_service;
 	session_class->remove_service = mail_ui_session_remove_service;
-	session_class->alert_user = e_mail_ui_session_alert_user;
 	session_class->get_filter_driver = mail_ui_session_get_filter_driver;
 
 	mail_session_class = E_MAIL_SESSION_CLASS (class);
diff --git a/mail/e-mail-ui-session.h b/mail/e-mail-ui-session.h
index e6a6501..105a14a 100644
--- a/mail/e-mail-ui-session.h
+++ b/mail/e-mail-ui-session.h
@@ -87,7 +87,14 @@ void		e_mail_ui_session_add_activity	(EMailUISession *session,
 gint		e_mail_ui_session_alert_user	(CamelSession *session,
 						 CamelSessionAlertType type,
 						 const gchar *prompt,
-						 GSList *button_captions);
+						 GSList *button_captions,
+						 GCancellable *cancellable);
+CamelCertTrust	e_mail_ui_session_trust_prompt	(CamelSession *session,
+						 const gchar *host,
+						 const gchar *certificate,
+						 guint32 certificate_errors,
+						 const GSList *issuers,
+						 GCancellable *cancellable);
 
 G_END_DECLS