Renamed from session.c and made to be a subclass of CamelSession.

	* mail-session.c: Renamed from session.c and made to be a subclass
	of CamelSession.

	* mail-mt.c (mail_user_message): Renamed from mail_get_accept and
	made more general-purpose, to implement the new
	camel_session_alert_user.

svn path=/trunk/; revision=9618

1 files changed, 405 insertions, 0 deletions

diff --git a/mail/mail-session.c b/mail/mail-session.c
new file mode 100644
index 0000000000..ea56f67394
--- /dev/null
+++ b/mail/mail-session.c
@@ -0,0 +1,405 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* mail-session.c: handles the session information and resource manipulation */
+/*
+ *  Copyright 2001 Ximian, Inc. (www.ximian.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <libgnome/gnome-defs.h>
+#include <libgnome/gnome-config.h>
+#include <libgnomeui/gnome-dialog.h>
+#include <libgnomeui/gnome-dialog-util.h>
+#include <libgnomeui/gnome-messagebox.h>
+#include <libgnomeui/gnome-stock.h>
+#include "mail.h"
+#include "mail-session.h"
+#include "mail-mt.h"
+
+CamelSession *session;
+
+
+#define MAIL_SESSION_TYPE     (mail_session_get_type ())
+#define MAIL_SESSION(obj)     (CAMEL_CHECK_CAST((obj), MAIL_SESSION_TYPE, MailSession))
+#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))
+
+
+typedef struct _MailSession {
+	CamelSession parent_object;
+
+	GHashTable *passwords;
+	gboolean interaction_enabled;
+} MailSession;
+
+typedef struct _MailSessionClass {
+	CamelSessionClass parent_class;
+
+} MailSessionClass;
+
+
+static char *get_password (CamelSession *session, const char *prompt,
+			   gboolean secret, CamelService *service,
+			   const char *item, CamelException *ex);
+static void forget_password (CamelSession *session, CamelService *service,
+			     const char *item, CamelException *ex);
+static gboolean alert_user (CamelSession *session, CamelSessionAlertType type,
+			    const char *prompt, gboolean cancel);
+static guint register_timeout (CamelSession *session, guint32 interval,
+			       CamelTimeoutCallback cb, gpointer camel_data);
+static gboolean remove_timeout (CamelSession *session, guint handle);
+
+
+static char *decode_base64 (char *base64);
+
+static void
+init (MailSession *session)
+{
+	char *key, *value;
+	void *iter;
+
+	session->passwords = g_hash_table_new (g_str_hash, g_str_equal);
+
+	iter = gnome_config_private_init_iterator ("/Evolution/Passwords");
+	if (iter) {
+		while (gnome_config_iterator_next (iter, &key, &value)) {
+			g_hash_table_insert (session->passwords,
+					     decode_base64 (key),
+					     decode_base64 (value));
+			g_free (key);
+			g_free (value);
+		}
+	}
+}
+
+static void
+class_init (MailSessionClass *mail_session_class)
+{
+	CamelSessionClass *camel_session_class =
+		CAMEL_SESSION_CLASS (mail_session_class);
+
+	/* virtual method override */
+	camel_session_class->get_password = get_password;
+	camel_session_class->forget_password = forget_password;
+	camel_session_class->alert_user = alert_user;
+	camel_session_class->register_timeout = register_timeout;
+	camel_session_class->remove_timeout = remove_timeout;
+}
+
+CamelType
+mail_session_get_type (void)
+{
+	static CamelType mail_session_type = CAMEL_INVALID_TYPE;
+
+	if (mail_session_type == CAMEL_INVALID_TYPE) {
+		mail_session_type = camel_type_register (
+			camel_session_get_type (), "MailSession",
+			sizeof (MailSession),
+			sizeof (MailSessionClass),
+			(CamelObjectClassInitFunc) class_init,
+			NULL,
+			(CamelObjectInitFunc) init,
+			NULL);
+	}
+
+	return mail_session_type;
+}
+
+
+static char *
+make_key (CamelService *service, const char *item)
+{
+	char *key, *url;
+
+	if (service) {
+		url = camel_url_to_string (service->url, CAMEL_URL_HIDE_PASSWORD | CAMEL_URL_HIDE_PARAMS);
+		key = g_strdup_printf ("%s:%s", url, item);
+		g_free (url);
+	} else
+		key = g_strdup (item);
+
+	return key;
+}
+
+static char *
+get_password (CamelSession *session, const char *prompt, gboolean secret,
+	      CamelService *service, const char *item, CamelException *ex)
+{
+	MailSession *mail_session = MAIL_SESSION (session);
+	char *key, *ans;
+
+	key = make_key (service, item);
+
+	ans = g_hash_table_lookup (mail_session->passwords, key);
+	if (ans) {
+		g_free (key);
+		return g_strdup (ans);
+	}
+
+	if (!mail_session->interaction_enabled ||
+	    !(ans = mail_get_password (prompt, secret))) {
+		g_free (key);
+		camel_exception_set (ex, CAMEL_EXCEPTION_USER_CANCEL,
+				     _("User canceled operation."));
+		return NULL;
+	}
+
+	g_hash_table_insert (mail_session->passwords, key, g_strdup (ans));
+	return ans;
+}
+
+static void
+forget_password (CamelSession *session, CamelService *service,
+		 const char *item, CamelException *ex)
+{
+	MailSession *mail_session = MAIL_SESSION (session);
+	char *key = make_key (service, item);
+	gpointer old_key, old_data;
+
+	if (!g_hash_table_lookup_extended (mail_session->passwords, key,
+					   &old_key, &old_data))
+		return;
+
+	g_hash_table_remove (mail_session->passwords, key);
+	g_free (old_data);
+	g_free (old_key);
+}
+
+static gboolean
+alert_user (CamelSession *session, CamelSessionAlertType type,
+	    const char *prompt, gboolean cancel)
+{
+	MailSession *mail_session = MAIL_SESSION (session);
+	const char *message_type;
+
+	if (!mail_session->interaction_enabled)
+		return FALSE;
+
+	switch (type) {
+	case CAMEL_SESSION_ALERT_INFO:
+		message_type = GNOME_MESSAGE_BOX_INFO;
+		break;
+	case CAMEL_SESSION_ALERT_WARNING:
+		message_type = GNOME_MESSAGE_BOX_WARNING;
+		break;
+	case CAMEL_SESSION_ALERT_ERROR:
+		message_type = GNOME_MESSAGE_BOX_ERROR;
+		break;
+	}
+	return mail_user_message (message_type, prompt, cancel);
+}
+
+/* ******************** */
+
+struct _timeout_data {
+	CamelTimeoutCallback cb;
+	gpointer camel_data;
+	gboolean result;
+};
+
+struct _timeout_msg {
+	struct _mail_msg msg;
+
+	CamelTimeoutCallback cb;
+	gpointer camel_data;
+};
+
+static void timeout_timeout(struct _mail_msg *mm)
+{
+	struct _timeout_msg *m = (struct _timeout_msg *)mm;
+
+	/* we ignore the callback result, do we care?? no. */
+	m->cb(m->camel_data);
+}
+
+static struct _mail_msg_op timeout_op = {
+	NULL,
+	timeout_timeout,
+	NULL,
+	NULL,
+};
+
+static gboolean 
+camel_timeout (gpointer data)
+{
+	struct _timeout_data *td = data;
+	struct _timeout_msg *m;
+
+	m = mail_msg_new(&timeout_op, NULL, sizeof(*m));
+
+	m->cb = td->cb;
+	m->camel_data = td->camel_data;
+
+	e_thread_put(mail_thread_queued, (EMsg *)m);
+
+	return TRUE;
+}
+
+static guint
+register_timeout (CamelSession *session, guint32 interval, CamelTimeoutCallback cb, gpointer camel_data)
+{
+	struct _timeout_data *td;
+
+	/* We do this because otherwise the timeout can get called
+	 * more often than the dispatch thread can get rid of it,
+	 * leading to timeout calls piling up, and we don't have a
+	 * good way to watch the return values. It's not cool.
+	 */
+	g_return_val_if_fail (interval > 1000, 0);
+
+	td = g_malloc(sizeof(*td));
+	td->result = TRUE;
+	td->cb = cb;
+	td->camel_data = camel_data;
+
+	return gtk_timeout_add_full(interval, camel_timeout, NULL, td, g_free);
+}
+
+static gboolean
+remove_timeout (CamelSession *session, guint handle)
+{
+	gtk_timeout_remove (handle);
+	return TRUE;
+}
+
+
+static char *
+decode_base64 (char *base64)
+{
+	char *plain, *pad = "==";
+	int len, out, state, save;
+
+	len = strlen (base64);
+	plain = g_malloc0 (len);
+	state = save = 0;
+	out = base64_decode_step (base64, len, plain, &state, &save);
+	if (len % 4) {
+		base64_decode_step (pad, 4 - len % 4, plain + out,
+				    &state, &save);
+	}
+
+	return plain;
+}
+
+static void
+maybe_remember_password (gpointer key, gpointer password, gpointer url)
+{
+	char *path, *key64, *pass64;
+	int len, state, save;
+
+	len = strlen (url);
+	if (strncmp (key, url, len) != 0)
+		return;
+
+	len = strlen (key);
+	key64 = g_malloc0 ((len + 2) * 4 / 3 + 1);
+	state = save = 0;
+	base64_encode_close (key, len, FALSE, key64, &state, &save);
+	path = g_strdup_printf ("/Evolution/Passwords/%s", key64);
+	g_free (key64);
+
+	len = strlen (password);
+	pass64 = g_malloc0 ((len + 2) * 4 / 3 + 1);
+	state = save = 0;
+	base64_encode_close (password, len, FALSE, pass64, &state, &save);
+
+	gnome_config_private_set_string (path, pass64);
+	g_free (path);
+	g_free (pass64);
+}
+
+void
+mail_session_remember_password (const char *url_string)
+{
+	GHashTable *passwords = MAIL_SESSION (session)->passwords;
+	CamelURL *url;
+	char *simple_url;
+
+	url = camel_url_new (url_string, NULL);
+	simple_url = camel_url_to_string (url, CAMEL_URL_HIDE_PASSWORD | CAMEL_URL_HIDE_PARAMS);
+	camel_url_free (url);
+
+	g_hash_table_foreach (passwords, maybe_remember_password, simple_url);
+	g_free (simple_url);
+}
+
+void
+mail_session_forget_password (const char *key)
+{
+	GHashTable *passwords = MAIL_SESSION (session)->passwords;
+	gpointer okey, value;
+
+	if (g_hash_table_lookup_extended (passwords, key, &okey, &value)) {
+		g_hash_table_remove (passwords, key);
+		g_free (okey);
+		g_free (value);
+	}
+}
+
+void
+mail_session_init (void)
+{
+	char *camel_dir;
+
+	if (camel_init (evolution_dir, TRUE) != 0)
+		exit (0);
+
+	session = CAMEL_SESSION (camel_object_new (MAIL_SESSION_TYPE));
+
+	camel_dir = g_strdup_printf ("%s/mail", evolution_dir);
+	camel_session_construct (session, camel_dir);
+	g_free (camel_dir);
+}
+
+void
+mail_session_enable_interaction (gboolean enable)
+{
+	MAIL_SESSION (session)->interaction_enabled = enable;
+}
+
+static gboolean
+free_entry (gpointer key, gpointer value, gpointer user_data)
+{
+	g_free (key);
+	memset (value, 0, strlen (value));
+	g_free (value);
+	return TRUE;
+}
+
+void
+mail_session_forget_passwords (BonoboUIComponent *uih, void *user_data,
+			       const char *path)
+{
+	GHashTable *passwords = MAIL_SESSION (session)->passwords;
+
+	g_hash_table_foreach_remove (passwords, free_entry, NULL);
+	gnome_config_private_clean_section ("/Evolution/Passwords");
+	gnome_config_sync ();
+}
+
+void
+mail_session_set_password (const char *url, const char *password)
+{
+	GHashTable *passwords = MAIL_SESSION (session)->passwords;
+
+	g_hash_table_insert (passwords, g_strdup (url), g_strdup (password));
+}
+