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/* kim/lib/kim_ui_plugin.c */
/*
* Copyright 2008 Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#include "k5-int.h"
#include "kim_private.h"
const char * const *kim_ui_plugin_files = NULL;
#if TARGET_OS_MAC
static const char *kim_ui_plugin_dirs[] = { KRB5_KIM_UI_PLUGIN_BUNDLE_DIR, LIBDIR "/krb5/plugins/kimui", NULL };
#else
static const char *kim_ui_plugin_dirs[] = { LIBDIR "/krb5/plugins/kimui", NULL };
#endif
struct kim_ui_plugin_context {
krb5_context kcontext;
struct plugin_dir_handle plugins;
struct kim_ui_plugin_ftable_v0 *ftable;
void **ftables;
void *plugin_context;
};
/* ------------------------------------------------------------------------ */
static void kim_ui_plugin_context_free (kim_ui_plugin_context *io_context)
{
if (io_context && *io_context) {
if ((*io_context)->ftables) {
krb5int_free_plugin_dir_data ((*io_context)->ftables);
}
if (PLUGIN_DIR_OPEN (&(*io_context)->plugins)) {
krb5int_close_plugin_dirs (&(*io_context)->plugins);
}
if ((*io_context)->kcontext) {
krb5_free_context ((*io_context)->kcontext);
}
free (*io_context);
*io_context = NULL;
}
}
/* ------------------------------------------------------------------------ */
static kim_error kim_ui_plugin_context_allocate (kim_ui_plugin_context *out_context)
{
kim_error err = KIM_NO_ERROR;
kim_ui_plugin_context context = NULL;
if (!err && !out_context) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err) {
context = malloc (sizeof (*context));
if (!context) { err = KIM_OUT_OF_MEMORY_ERR; }
}
if (!err) {
err = krb5_error (NULL, krb5_init_context (&context->kcontext));
}
if (!err) {
PLUGIN_DIR_INIT(&context->plugins);
context->ftable = NULL;
context->ftables = NULL;
context->plugin_context = NULL;
*out_context = context;
context = NULL;
}
kim_ui_plugin_context_free (&context);
return check_error (err);
}
#pragma mark -
/* ------------------------------------------------------------------------ */
kim_error kim_ui_plugin_init (kim_ui_context *io_context)
{
kim_error err = KIM_NO_ERROR;
kim_ui_plugin_context context = NULL;
if (!err && !io_context) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err) {
err = kim_ui_plugin_context_allocate (&context);
}
if (!err) {
PLUGIN_DIR_INIT(&context->plugins);
err = krb5_error (context->kcontext,
krb5int_open_plugin_dirs (kim_ui_plugin_dirs,
kim_ui_plugin_files,
&context->plugins,
&context->kcontext->err));
}
if (!err) {
err = krb5_error (context->kcontext,
krb5int_get_plugin_dir_data (&context->plugins,
"kim_ui_0",
&context->ftables,
&context->kcontext->err));
}
if (!err && context->ftables) {
int i;
for (i = 0; context->ftables[i]; i++) {
struct kim_ui_plugin_ftable_v0 *ftable = context->ftables[i];
context->plugin_context = NULL;
err = ftable->init (&context->plugin_context);
if (!err) {
context->ftable = ftable;
break; /* use first plugin that initializes correctly */
}
err = KIM_NO_ERROR; /* ignore failed plugins */
}
}
if (!err && !context->ftable) {
err = check_error (KRB5_PLUGIN_NO_HANDLE);
}
if (!err) {
io_context->tcontext = context;
context = NULL;
}
kim_ui_plugin_context_free (&context);
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_error kim_ui_plugin_enter_identity (kim_ui_context *in_context,
kim_options io_options,
kim_identity *out_identity,
kim_boolean *out_change_password)
{
kim_error err = KIM_NO_ERROR;
if (!err && !in_context ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !io_options ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !out_identity ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !out_change_password) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err) {
kim_ui_plugin_context context = (kim_ui_plugin_context) in_context->tcontext;
err = context->ftable->enter_identity (context->plugin_context,
io_options,
out_identity,
out_change_password);
}
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_error kim_ui_plugin_select_identity (kim_ui_context *in_context,
kim_selection_hints io_hints,
kim_identity *out_identity,
kim_boolean *out_change_password)
{
kim_error err = KIM_NO_ERROR;
if (!err && !in_context ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !io_hints ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !out_identity ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !out_change_password) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err) {
kim_ui_plugin_context context = (kim_ui_plugin_context) in_context->tcontext;
err = context->ftable->select_identity (context->plugin_context,
io_hints,
out_identity,
out_change_password);
}
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_error kim_ui_plugin_auth_prompt (kim_ui_context *in_context,
kim_identity in_identity,
kim_prompt_type in_type,
kim_boolean in_allow_save_reply,
kim_boolean in_hide_reply,
kim_string in_title,
kim_string in_message,
kim_string in_description,
char **out_reply,
kim_boolean *out_save_reply)
{
kim_error err = KIM_NO_ERROR;
if (!err && !in_context ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !in_identity) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !out_reply ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
/* in_title, in_message or in_description may be NULL */
if (!err) {
kim_ui_plugin_context context = (kim_ui_plugin_context) in_context->tcontext;
err = context->ftable->auth_prompt (context->plugin_context,
in_identity,
in_type,
in_allow_save_reply,
in_hide_reply,
in_title,
in_message,
in_description,
out_reply,
out_save_reply);
}
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_error kim_ui_plugin_change_password (kim_ui_context *in_context,
kim_identity in_identity,
kim_boolean in_old_password_expired,
char **out_old_password,
char **out_new_password,
char **out_verify_password)
{
kim_error err = KIM_NO_ERROR;
if (!err && !in_context ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !in_identity ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !out_old_password ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !out_new_password ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !out_verify_password) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err) {
kim_ui_plugin_context context = (kim_ui_plugin_context) in_context->tcontext;
err = context->ftable->change_password (context->plugin_context,
in_identity,
in_old_password_expired,
out_old_password,
out_new_password,
out_verify_password);
}
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_error kim_ui_plugin_handle_error (kim_ui_context *in_context,
kim_identity in_identity,
kim_error in_error,
kim_string in_error_message,
kim_string in_error_description)
{
kim_error err = KIM_NO_ERROR;
if (!err && !in_context ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !in_error_message ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !in_error_description) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err) {
kim_ui_plugin_context context = (kim_ui_plugin_context) in_context->tcontext;
err = context->ftable->handle_error (context->plugin_context,
in_identity,
in_error,
in_error_message,
in_error_description);
}
return check_error (err);
}
/* ------------------------------------------------------------------------ */
void kim_ui_plugin_free_string (kim_ui_context *in_context,
char **io_string)
{
kim_error err = KIM_NO_ERROR;
if (!err && !in_context) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err && !io_string ) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err) {
kim_ui_plugin_context context = (kim_ui_plugin_context) in_context->tcontext;
context->ftable->free_string (context->plugin_context,
io_string);
}
}
/* ------------------------------------------------------------------------ */
kim_error kim_ui_plugin_fini (kim_ui_context *io_context)
{
kim_error err = KIM_NO_ERROR;
if (!err && !io_context) { err = check_error (KIM_NULL_PARAMETER_ERR); }
if (!err) {
kim_ui_plugin_context context = (kim_ui_plugin_context) io_context->tcontext;
if (context) {
err = context->ftable->fini (context->plugin_context);
}
if (!err) {
kim_ui_plugin_context_free (&context);
io_context->tcontext = NULL;
}
}
return check_error (err);
}
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