[evolution] rename e_alert_get_buttons -> e_alert_peek_buttons

[Jonathon Jongsma <jjongsma src gnome org>]

commit 2fa4ec1334a90d22c9a54d150d6e4722be9bfe1c
Author: Jonathon Jongsma <jonathon quotidian org>
Date:   Tue Dec 8 10:56:33 2009 -0600

    rename e_alert_get_buttons -> e_alert_peek_buttons
    
    Make it obvious that this does not need to be freed like the other things that
    use get_* (e.g. e_alert_get_title)

 e-util/e-alert-dialog.c |    2 +-
 e-util/e-alert.c        |    2 +-
 e-util/e-alert.h        |    2 +-
 mail/mail-session.c     |  177 ++++++++++++++++++++++++++++++++++++++---------
 4 files changed, 146 insertions(+), 37 deletions(-)
---
diff --git a/e-util/e-alert-dialog.c b/e-util/e-alert-dialog.c
index eb89e68..a14df69 100644
--- a/e-util/e-alert-dialog.c
+++ b/e-util/e-alert-dialog.c
@@ -158,7 +158,7 @@ e_alert_dialog_constructed (GObject *obj)
 		g_signal_connect(self, "response", G_CALLBACK(dialog_response_cb), NULL);
 	}
 
-	b = e_alert_get_buttons (alert);
+	b = e_alert_peek_buttons (alert);
 	if (b == NULL) {
 		gtk_dialog_add_button((GtkDialog*) self, GTK_STOCK_OK, GTK_RESPONSE_OK);
 	} else {
diff --git a/e-util/e-alert.c b/e-util/e-alert.c
index b0e0449..ff8801f 100644
--- a/e-util/e-alert.c
+++ b/e-util/e-alert.c
@@ -659,7 +659,7 @@ e_alert_get_scroll (EAlert *alert)
 }
 
 struct _e_alert_button *
-e_alert_get_buttons (EAlert *alert)
+e_alert_peek_buttons (EAlert *alert)
 {
 	g_return_val_if_fail (alert && alert->priv && alert->priv->definition, NULL);
 	return alert->priv->definition->buttons;
diff --git a/e-util/e-alert.h b/e-util/e-alert.h
index f123be0..700f6be 100644
--- a/e-util/e-alert.h
+++ b/e-util/e-alert.h
@@ -109,7 +109,7 @@ gchar *e_alert_get_primary_text (EAlert *alert);
 gchar *e_alert_get_secondary_text (EAlert *alert);
 const gchar *e_alert_peek_help_uri (EAlert *alert);
 gboolean e_alert_get_scroll (EAlert *alert);
-struct _e_alert_button *e_alert_get_buttons (EAlert *alert);
+struct _e_alert_button *e_alert_peek_buttons (EAlert *alert);
 
 G_END_DECLS
 
diff --git a/mail/mail-session.c b/mail/mail-session.c
index b7b26bf..a20a07f 100644
--- a/mail/mail-session.c
+++ b/mail/mail-session.c
@@ -23,6 +23,7 @@
 
 #include <config.h>
 
+#include <errno.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -39,20 +40,20 @@
 
 #include <libedataserverui/e-passwords.h>
 #include <libedataserver/e-flag.h>
+#include <libedataserver/e-xml-utils.h>
 
 #include <camel/camel.h>	/* FIXME: this is where camel_init is defined, it shouldn't include everything else */
 #include <camel/camel-filter-driver.h>
 #include <camel/camel-i18n.h>
 
-#include "e-util/e-util.h"
 #include "e-util/e-alert-dialog.h"
 #include "e-util/e-util-private.h"
+#include "e-util/e-util.h"
+#include "e-util/e-xml-utils.h"
 #include "e-account-combo-box.h"
 #include "shell/e-shell.h"
 
 #include "em-composer-utils.h"
-#include "em-filter-context.h"
-#include "em-filter-rule.h"
 #include "em-utils.h"
 #include "mail-config.h"
 #include "mail-mt.h"
@@ -70,6 +71,13 @@ static gint session_check_junk_notify_id = -1;
 #define MAIL_SESSION_CLASS(k) (CAMEL_CHECK_CLASS_CAST ((k), MAIL_SESSION_TYPE, MailSessionClass))
 #define MAIL_IS_SESSION(o)    (CAMEL_CHECK_TYPE((o), MAIL_SESSION_TYPE))
 
+/* FIXME: temporarily copied here from e-filter-rule.h */
+#define E_FILTER_SOURCE_INCOMING "incoming" /* performed on incoming email */
+#define E_FILTER_SOURCE_DEMAND   "demand"   /* performed on the selected folder
+					     * when the user asks for it */
+#define E_FILTER_SOURCE_OUTGOING  "outgoing"/* performed on outgoing mail */
+#define E_FILTER_SOURCE_JUNKTEST  "junktest"/* perform only junktest on incoming mail */
+
 typedef struct _MailSession {
 	CamelSession parent_object;
 
@@ -506,26 +514,135 @@ session_system_beep (CamelFilterDriver *driver, gpointer user_data)
 			       driver, user_data, NULL);
 }
 
+typedef struct {
+	gchar *name;
+	gchar *match_query;
+	gchar *action_query;
+} FilterDescription;
+
+static void
+filter_description_free (FilterDescription *f)
+{
+	g_return_if_fail (f);
+
+	xmlFree (f->name);
+	xmlFree (f->match_query);
+	xmlFree (f->action_query);
+}
+
+static GPtrArray*
+load_saved_incoming_rules (const gchar *system_file, const gchar *user_file)
+{
+	xmlNodePtr set, rule, root;
+	xmlDocPtr docs[2];
+	GPtrArray *rules;
+	int i;
+
+	docs[0] = e_xml_parse_file (system_file);
+	if (docs[0] == NULL) {
+		g_warning ("%s: Unable to load system rules '%s': %s", G_STRFUNC, system_file, g_strerror(errno));
+		return NULL;
+	}
+
+	/* doesn't matter if this doesn't exist */
+	docs[1] = NULL;
+	if (g_file_test (user_file, G_FILE_TEST_IS_REGULAR))
+		docs[1] = e_xml_parse_file (user_file);
+
+	rules = g_ptr_array_new_with_free_func ((GDestroyNotify) filter_description_free);
+
+	for (i = 0; i < G_N_ELEMENTS (docs); i++)
+	{
+		xmlDocPtr doc = docs[i];
+		if (!doc)
+			break;
+
+		root = xmlDocGetRootElement (doc);
+		if (root == NULL
+		    || (strcmp ((gchar *)root->name, "filterdescription") != 0
+			&& strcmp ((gchar *)root->name, "filteroptions") != 0)) {
+			g_warning ("%s: Unable to load filter rules: Invalid root element '%s'",
+				   G_STRFUNC, root ? (gchar*) root->name : "(none)");
+			xmlFreeDoc (docs[i]);
+			continue;
+		}
+
+		set = root->children;
+		while (set) {
+			/* FIXME: hard-coding 'ruleset' for now, but in theory the
+			 * ruleset element might be named something different (see
+			 * e_rule_context_add_rule_set()). But in practice it's always
+			 * set to 'ruleset'.  Need to resolve this potential conflict
+			 * somehow, but we don't want to depend on ERuleContext in the
+			 * backend...  */
+			if (strcmp ((gchar *)set->name, "ruleset") == 0) {
+				rule = set->children;
+				while (rule) {
+					if (strcmp ((gchar *)rule->name, "rule") == 0) {
+						gchar *source = e_xml_get_string_prop_by_name (rule, (xmlChar*) "source");
+						if (strcmp (source, "incoming") == 0) {
+							xmlNode *name_node, *partset, *actionset, *code;
+							gchar *name;
+							FilterDescription *filter = g_new0 (FilterDescription, 1);
+
+							name_node = e_xml_get_child_by_name (rule, (xmlChar*) "title");
+							name = (gchar*) xmlNodeGetContent (rule);
+
+							partset = e_xml_get_child_by_name (rule, (xmlChar*) "partset");
+							actionset = e_xml_get_child_by_name (rule, (xmlChar*) "actionset");
+
+							filter->name = name;
+
+							if (partset) {
+								code = e_xml_get_child_by_name (partset, (xmlChar*) "code");
+								if (!code) {
+									g_warning ("Saved rule does not have a cached match s-expression");
+									filter_description_free (filter);
+									continue;
+								} else {
+									filter->match_query = (gchar*) xmlNodeGetContent (code);
+								}
+							}
+							if (actionset) {
+								code = e_xml_get_child_by_name (actionset, (xmlChar*) "code");
+								if (!code) {
+									g_warning ("Saved rule does not have a cached action s-expression");
+									filter_description_free (filter);
+									continue;
+								} else {
+									filter->action_query = (gchar*) xmlNodeGetContent (code);
+								}
+							}
+							g_ptr_array_add (rules, filter);
+						}
+						g_free (source);
+					}
+					rule = rule->next;
+				}
+			}
+			set = set->next;
+		}
+
+		xmlFreeDoc (doc);
+	}
+
+	return rules;
+}
+
+static void
+add_filter_description_to_driver (FilterDescription *filter, CamelFilterDriver *driver)
+{
+	camel_filter_driver_add_rule (driver, filter->name, filter->match_query, filter->action_query);
+}
+
 static CamelFilterDriver *
 main_get_filter_driver (CamelSession *session, const gchar *type, CamelException *ex)
 {
 	CamelFilterDriver *driver;
-	EFilterRule *rule = NULL;
-	const gchar *data_dir;
-	gchar *user, *system;
 	GConfClient *gconf;
-	ERuleContext *fc;
 
 	gconf = mail_config_get_gconf_client ();
 
-	data_dir = e_shell_backend_get_data_dir (session_shell_backend);
-	user = g_build_filename (data_dir, "filters.xml", NULL);
-	system = g_build_filename (EVOLUTION_PRIVDATADIR, "filtertypes.xml", NULL);
-	fc = (ERuleContext *) em_filter_context_new ();
-	e_rule_context_load (fc, system, user);
-	g_free (system);
-	g_free (user);
-
 	driver = camel_filter_driver_new (session);
 	camel_filter_driver_set_folder_func (driver, get_folder, NULL);
 
@@ -557,34 +674,26 @@ main_get_filter_driver (CamelSession *session, const gchar *type, CamelException
 	}
 
 	if (strcmp (type, E_FILTER_SOURCE_JUNKTEST) != 0) {
-		GString *fsearch, *faction;
+		const gchar *data_dir;
+		gchar *user, *system;
+		GPtrArray *rules;
 
-		fsearch = g_string_new ("");
-		faction = g_string_new ("");
+		data_dir = e_shell_backend_get_data_dir (session_shell_backend);
+		user = g_build_filename (data_dir, "filters.xml", NULL);
+		system = g_build_filename (EVOLUTION_PRIVDATADIR, "filtertypes.xml", NULL);
+		rules = load_saved_incoming_rules (system, user);
+		g_free (system);
+		g_free (user);
 
 		if (!strcmp (type, E_FILTER_SOURCE_DEMAND))
 			type = E_FILTER_SOURCE_INCOMING;
 
 		/* add the user-defined rules next */
-		while ((rule = e_rule_context_next_rule (fc, rule, type))) {
-			g_string_truncate (fsearch, 0);
-			g_string_truncate (faction, 0);
+		g_ptr_array_foreach (rules, (GFunc) add_filter_description_to_driver, driver);
 
-			/* skip disabled rules */
-			if (!rule->enabled)
-				continue;
-
-			e_filter_rule_build_code (rule, fsearch);
-			em_filter_rule_build_action ((EMFilterRule *) rule, faction);
-			camel_filter_driver_add_rule (driver, rule->name, fsearch->str, faction->str);
-		}
-
-		g_string_free (fsearch, TRUE);
-		g_string_free (faction, TRUE);
+		g_ptr_array_free (rules, TRUE);
 	}
 
-	g_object_unref (fc);
-
 	return driver;
 }