/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2003 Hiroyuki Yamamoto & the Sylpheed-Claws team
+ * Copyright (C) 1999-2012 Hiroyuki Yamamoto & the Claws Mail team
*
* 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
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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 Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
*/
#include <glib.h>
+#include <glib/gi18n.h>
-#include "intl.h"
#include "privacy.h"
#include "procmime.h"
+#include "procmsg.h"
static GSList *systems = NULL;
+static gchar *privacy_last_error = NULL;
+void privacy_set_error(const gchar *format, ...)
+{
+ va_list args;
+ gchar buf[BUFSIZ];
+
+ va_start(args, format);
+ g_vsnprintf(buf, BUFSIZ, format, args);
+ va_end(args);
+ g_free(privacy_last_error);
+ privacy_last_error = g_strdup(buf);
+}
+
+static gchar tmp_privacy_error[BUFSIZ];
+
+void privacy_reset_error(void)
+{
+ g_free(privacy_last_error);
+ privacy_last_error = NULL;
+}
+
+gboolean privacy_peek_error(void)
+{
+ return (privacy_last_error != NULL);
+}
+
+const gchar *privacy_get_error (void)
+{
+ if (privacy_last_error) {
+ strncpy2(tmp_privacy_error, privacy_last_error, BUFSIZ-1);
+ privacy_reset_error();
+ return tmp_privacy_error;
+ } else {
+ return _("Unknown error");
+ }
+}
+
+static PrivacySystem *privacy_data_get_system(PrivacyData *data)
+{
+ /* Make sure the cached system is still registered */
+ if (data->system && g_slist_find(systems, data->system))
+ return data->system;
+ else
+ return NULL;
+}
/**
* Register a new Privacy System
*
*/
void privacy_free_privacydata(PrivacyData *privacydata)
{
- g_return_if_fail(privacydata != NULL);
+ PrivacySystem *system = NULL;
+
+ cm_return_if_fail(privacydata != NULL);
- privacydata->system->free_privacydata(privacydata);
+ system = privacy_data_get_system(privacydata);
+ if (!system)
+ return;
+ system->free_privacydata(privacydata);
}
/**
gboolean privacy_mimeinfo_is_signed(MimeInfo *mimeinfo)
{
GSList *cur;
- g_return_val_if_fail(mimeinfo != NULL, FALSE);
+ cm_return_val_if_fail(mimeinfo != NULL, FALSE);
if (mimeinfo->privacy != NULL) {
- PrivacySystem *system = mimeinfo->privacy->system;
+ PrivacySystem *system =
+ privacy_data_get_system(mimeinfo->privacy);
+
+ if (system == NULL) {
+ mimeinfo->privacy = NULL;
+ goto try_others;
+ }
if (system->is_signed != NULL)
return system->is_signed(mimeinfo);
else
return FALSE;
}
-
+try_others:
for(cur = systems; cur != NULL; cur = g_slist_next(cur)) {
PrivacySystem *system = (PrivacySystem *) cur->data;
return FALSE;
}
+struct SignedState {
+ MsgInfo *msginfo;
+ gchar **system;
+};
+
+static void msginfo_set_signed_flag(GNode *node, gpointer data)
+{
+ struct SignedState *sstate = (struct SignedState *)data;
+ MsgInfo *msginfo = sstate->msginfo;
+ MimeInfo *mimeinfo = node->data;
+
+ if (privacy_mimeinfo_is_signed(mimeinfo)) {
+ procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
+ if (sstate->system && !*(sstate->system) && mimeinfo->privacy)
+ *(sstate->system) = g_strdup(mimeinfo->privacy->system->id);
+ }
+ if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
+ procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
+ if (sstate->system && !*(sstate->system) && mimeinfo->privacy)
+ *(sstate->system) = g_strdup(mimeinfo->privacy->system->id);
+ } else {
+ /* searching inside encrypted parts doesn't really make sense */
+ g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_signed_flag, sstate);
+ }
+}
+
+void privacy_msginfo_get_signed_state(MsgInfo *msginfo, gchar **system)
+{
+ struct SignedState sstate;
+ MimeInfo *mimeinfo = procmime_scan_message(msginfo);
+ if (!mimeinfo)
+ return;
+ sstate.msginfo = msginfo;
+ sstate.system = system;
+ g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_signed_flag, &sstate);
+}
+
/**
* Check the signature of a MimeInfo. privacy_mimeinfo_is_signed
* should be called before otherwise it is done by this function.
* If the MimeInfo is not signed an error code will be returned.
*
* \return Error code indicating the result of the check,
- * < 0 if an error occured
+ * < 0 if an error occurred
*/
gint privacy_mimeinfo_check_signature(MimeInfo *mimeinfo)
{
PrivacySystem *system;
- g_return_val_if_fail(mimeinfo != NULL, -1);
+ cm_return_val_if_fail(mimeinfo != NULL, -1);
if (mimeinfo->privacy == NULL)
privacy_mimeinfo_is_signed(mimeinfo);
if (mimeinfo->privacy == NULL)
return -1;
- system = mimeinfo->privacy->system;
+ system = privacy_data_get_system(mimeinfo->privacy);
+ if (system == NULL)
+ return -1;
+
if (system->check_signature == NULL)
return -1;
{
PrivacySystem *system;
- g_return_val_if_fail(mimeinfo != NULL, -1);
+ cm_return_val_if_fail(mimeinfo != NULL, -1);
if (mimeinfo->privacy == NULL)
privacy_mimeinfo_is_signed(mimeinfo);
if (mimeinfo->privacy == NULL)
return SIGNATURE_UNCHECKED;
- system = mimeinfo->privacy->system;
+ system = privacy_data_get_system(mimeinfo->privacy);
+ if (system == NULL)
+ return SIGNATURE_UNCHECKED;
if (system->get_sig_status == NULL)
return SIGNATURE_UNCHECKED;
{
PrivacySystem *system;
- g_return_val_if_fail(mimeinfo != NULL, NULL);
+ cm_return_val_if_fail(mimeinfo != NULL, NULL);
if (mimeinfo->privacy == NULL)
privacy_mimeinfo_is_signed(mimeinfo);
if (mimeinfo->privacy == NULL)
return g_strdup(_("No signature found"));
- system = mimeinfo->privacy->system;
+ system = privacy_data_get_system(mimeinfo->privacy);
+ if (system == NULL)
+ return g_strdup(_("No signature found"));
if (system->get_sig_info_short == NULL)
return g_strdup(_("No information available"));
{
PrivacySystem *system;
- g_return_val_if_fail(mimeinfo != NULL, NULL);
+ cm_return_val_if_fail(mimeinfo != NULL, NULL);
if (mimeinfo->privacy == NULL)
privacy_mimeinfo_is_signed(mimeinfo);
if (mimeinfo->privacy == NULL)
return g_strdup(_("No signature found"));
- system = mimeinfo->privacy->system;
+ system = privacy_data_get_system(mimeinfo->privacy);
+ if (system == NULL)
+ return g_strdup(_("No signature found"));
if (system->get_sig_info_full == NULL)
return g_strdup(_("No information available"));
gboolean privacy_mimeinfo_is_encrypted(MimeInfo *mimeinfo)
{
GSList *cur;
- g_return_val_if_fail(mimeinfo != NULL, FALSE);
+ cm_return_val_if_fail(mimeinfo != NULL, FALSE);
for(cur = systems; cur != NULL; cur = g_slist_next(cur)) {
PrivacySystem *system = (PrivacySystem *) cur->data;
MimeInfo *decryptedinfo, *parentinfo;
gint childnumber;
- g_return_val_if_fail(system->decrypt != NULL, -1);
+ cm_return_val_if_fail(system->decrypt != NULL, -1);
decryptedinfo = system->decrypt(mimeinfo);
if (decryptedinfo == NULL)
parentinfo = procmime_mimeinfo_parent(mimeinfo);
childnumber = g_node_child_index(parentinfo->node, mimeinfo);
- procmime_mimeinfo_free_all(mimeinfo);
+ procmime_mimeinfo_free_all(&mimeinfo);
g_node_insert(parentinfo->node, childnumber, decryptedinfo->node);
gint privacy_mimeinfo_decrypt(MimeInfo *mimeinfo)
{
GSList *cur;
- g_return_val_if_fail(mimeinfo != NULL, FALSE);
+ cm_return_val_if_fail(mimeinfo != NULL, FALSE);
+
+ procmime_decode_content(mimeinfo);
for(cur = systems; cur != NULL; cur = g_slist_next(cur)) {
PrivacySystem *system = (PrivacySystem *) cur->data;
return -1;
}
+
+GSList *privacy_get_system_ids()
+{
+ GSList *cur;
+ GSList *ret = NULL;
+
+ for(cur = systems; cur != NULL; cur = g_slist_next(cur)) {
+ PrivacySystem *system = (PrivacySystem *) cur->data;
+
+ ret = g_slist_append(ret, g_strdup(system->id));
+ }
+
+ return ret;
+}
+
+static PrivacySystem *privacy_get_system(const gchar *id)
+{
+ GSList *cur;
+
+ cm_return_val_if_fail(id != NULL, NULL);
+
+ for(cur = systems; cur != NULL; cur = g_slist_next(cur)) {
+ PrivacySystem *system = (PrivacySystem *) cur->data;
+
+ if(strcmp(id, system->id) == 0)
+ return system;
+ }
+
+ return NULL;
+}
+
+const gchar *privacy_system_get_name(const gchar *id)
+{
+ PrivacySystem *system;
+
+ cm_return_val_if_fail(id != NULL, NULL);
+
+ system = privacy_get_system(id);
+ if (system == NULL)
+ return NULL;
+
+ return system->name;
+}
+
+gboolean privacy_system_can_sign(const gchar *id)
+{
+ PrivacySystem *system;
+
+ cm_return_val_if_fail(id != NULL, FALSE);
+
+ system = privacy_get_system(id);
+ if (system == NULL)
+ return FALSE;
+
+ return system->can_sign;
+}
+
+gboolean privacy_system_can_encrypt(const gchar *id)
+{
+ PrivacySystem *system;
+
+ cm_return_val_if_fail(id != NULL, FALSE);
+
+ system = privacy_get_system(id);
+ if (system == NULL)
+ return FALSE;
+
+ return system->can_encrypt;
+}
+
+gboolean privacy_sign(const gchar *id, MimeInfo *target, PrefsAccount *account, const gchar *from_addr)
+{
+ PrivacySystem *system;
+
+ cm_return_val_if_fail(id != NULL, FALSE);
+ cm_return_val_if_fail(target != NULL, FALSE);
+
+ system = privacy_get_system(id);
+ if (system == NULL)
+ return FALSE;
+ if (!system->can_sign)
+ return FALSE;
+ if (system->sign == NULL)
+ return FALSE;
+
+ return system->sign(target, account, from_addr);
+}
+
+gchar *privacy_get_encrypt_data(const gchar *id, GSList *recp_names)
+{
+ PrivacySystem *system;
+ gchar *ret = NULL;
+ GSList *uniq_names = NULL, *cur;
+
+ cm_return_val_if_fail(id != NULL, NULL);
+ cm_return_val_if_fail(recp_names != NULL, NULL);
+
+ system = privacy_get_system(id);
+ if (system == NULL)
+ return NULL;
+ if (!system->can_encrypt)
+ return NULL;
+ if (system->get_encrypt_data == NULL)
+ return NULL;
+
+ for (cur = recp_names; cur; cur = cur->next) {
+ if (!g_slist_find_custom(uniq_names, cur->data, (GCompareFunc)strcmp)) {
+ uniq_names = g_slist_prepend(uniq_names, cur->data);
+ }
+ }
+ ret = system->get_encrypt_data(uniq_names);
+
+ g_slist_free(uniq_names);
+ return ret;
+}
+
+const gchar *privacy_get_encrypt_warning(const gchar *id)
+{
+ PrivacySystem *system;
+
+ cm_return_val_if_fail(id != NULL, NULL);
+
+ system = privacy_get_system(id);
+ if (system == NULL)
+ return NULL;
+ if (!system->can_encrypt)
+ return NULL;
+ if (system->get_encrypt_warning == NULL)
+ return NULL;
+
+ return system->get_encrypt_warning();
+}
+
+void privacy_inhibit_encrypt_warning(const gchar *id, gboolean inhibit)
+{
+ PrivacySystem *system;
+
+ cm_return_if_fail(id != NULL);
+
+ system = privacy_get_system(id);
+ if (system == NULL)
+ return;
+ if (!system->can_encrypt)
+ return;
+ if (system->inhibit_encrypt_warning == NULL)
+ return;
+
+ system->inhibit_encrypt_warning(inhibit);
+}
+
+gboolean privacy_encrypt(const gchar *id, MimeInfo *mimeinfo, const gchar *encdata)
+{
+ PrivacySystem *system;
+
+ cm_return_val_if_fail(id != NULL, FALSE);
+ cm_return_val_if_fail(mimeinfo != NULL, FALSE);
+ if (encdata == NULL) {
+ privacy_set_error(_("No recipient keys defined."));
+ return FALSE;
+ }
+
+ system = privacy_get_system(id);
+ if (system == NULL)
+ return FALSE;
+ if (!system->can_encrypt)
+ return FALSE;
+ if (system->encrypt == NULL)
+ return FALSE;
+
+ return system->encrypt(mimeinfo, encdata);
+}
+
+gboolean privacy_auto_check_signatures(MimeInfo *mimeinfo)
+{
+ PrivacySystem *system;
+
+ cm_return_val_if_fail(mimeinfo != NULL, FALSE);
+
+ if (mimeinfo->privacy == NULL)
+ privacy_mimeinfo_is_signed(mimeinfo);
+
+ if (mimeinfo->privacy == NULL)
+ return FALSE;
+
+ system = privacy_data_get_system(mimeinfo->privacy);
+ if (system == NULL)
+ return FALSE;
+ if (system->auto_check_signatures == NULL)
+ return FALSE;
+
+ return system->auto_check_signatures();
+}
projects / claws.git / blobdiff