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/*
* Mono Plugin Loader
*
* -- Thanks to the perl plugin loader for all the great tips ;-)
*
* Eoin Coffey
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "internal.h"
#include "debug.h"
#include "plugin.h"
#include "version.h"
#include "mono-helper.h"
#define MONO_PLUGIN_ID "core-mono"
/******************************************************************************
* Loader Stuff
*****************************************************************************/
/* probes the given plugin to determine if its a plugin */
static gboolean probe_mono_plugin(PurplePlugin *plugin)
{
MonoAssembly *assm;
MonoMethod *m = NULL;
MonoObject *plugin_info;
gboolean found_load = FALSE, found_unload = FALSE, found_destroy = FALSE;
gpointer iter = NULL;
PurplePluginInfo *info;
PurpleMonoPlugin *mplug;
char *file = plugin->path;
assm = mono_domain_assembly_open(ml_get_domain(), file);
if (!assm) {
return FALSE;
}
purple_debug(PURPLE_DEBUG_INFO, "mono", "Probing plugin\n");
if (ml_is_api_dll(mono_assembly_get_image(assm))) {
purple_debug(PURPLE_DEBUG_INFO, "mono", "Found our PurpleAPI.dll\n");
return FALSE;
}
info = g_new0(PurplePluginInfo, 1);
mplug = g_new0(PurpleMonoPlugin, 1);
mplug->signal_data = NULL;
mplug->assm = assm;
mplug->klass = ml_find_plugin_class(mono_assembly_get_image(mplug->assm));
if (!mplug->klass) {
purple_debug(PURPLE_DEBUG_ERROR, "mono", "no plugin class in \'%s\'\n", file);
return FALSE;
}
mplug->obj = mono_object_new(ml_get_domain(), mplug->klass);
if (!mplug->obj) {
purple_debug(PURPLE_DEBUG_ERROR, "mono", "obj not valid\n");
return FALSE;
}
mono_runtime_object_init(mplug->obj);
while ((m = mono_class_get_methods(mplug->klass, &iter))) {
purple_debug_info("mono", "plugin method: %s\n", mono_method_get_name(m));
if (strcmp(mono_method_get_name(m), "Load") == 0) {
mplug->load = m;
found_load = TRUE;
} else if (strcmp(mono_method_get_name(m), "Unload") == 0) {
mplug->unload = m;
found_unload = TRUE;
} else if (strcmp(mono_method_get_name(m), "Destroy") == 0) {
mplug->destroy = m;
found_destroy = TRUE;
}
}
if (!(found_load && found_unload && found_destroy)) {
purple_debug(PURPLE_DEBUG_ERROR, "mono", "did not find the required methods\n");
return FALSE;
}
plugin_info = ml_get_info_prop(mplug->obj);
/* now that the methods are filled out we can populate
the info struct with all the needed info */
info->id = ml_get_prop_string(plugin_info, "Id");
info->name = ml_get_prop_string(plugin_info, "Name");
info->version = ml_get_prop_string(plugin_info, "Version");
info->summary = ml_get_prop_string(plugin_info, "Summary");
info->description = ml_get_prop_string(plugin_info, "Description");
info->author = ml_get_prop_string(plugin_info, "Author");
info->homepage = ml_get_prop_string(plugin_info, "Homepage");
info->magic = PURPLE_PLUGIN_MAGIC;
info->major_version = PURPLE_MAJOR_VERSION;
info->minor_version = PURPLE_MINOR_VERSION;
info->type = PURPLE_PLUGIN_STANDARD;
/* this plugin depends on us; duh */
info->dependencies = g_list_append(info->dependencies, MONO_PLUGIN_ID);
mplug->plugin = plugin;
plugin->info = info;
info->extra_info = mplug;
ml_add_plugin(mplug);
return purple_plugin_register(plugin);
}
/* Loads a Mono Plugin by calling 'load' in the class */
static gboolean load_mono_plugin(PurplePlugin *plugin)
{
PurpleMonoPlugin *mplug;
purple_debug(PURPLE_DEBUG_INFO, "mono", "Loading plugin\n");
mplug = (PurpleMonoPlugin*)plugin->info->extra_info;
ml_invoke(mplug->load, mplug->obj, NULL);
return TRUE;
}
/* Unloads a Mono Plugin by calling 'unload' in the class */
static gboolean unload_mono_plugin(PurplePlugin *plugin)
{
PurpleMonoPlugin *mplug;
purple_debug(PURPLE_DEBUG_INFO, "mono", "Unloading plugin\n");
mplug = (PurpleMonoPlugin*)plugin->info->extra_info;
purple_signals_disconnect_by_handle((gpointer)mplug->klass);
g_list_foreach(mplug->signal_data, (GFunc)g_free, NULL);
g_list_free(mplug->signal_data);
mplug->signal_data = NULL;
ml_invoke(mplug->unload, mplug->obj, NULL);
return TRUE;
}
static void destroy_mono_plugin(PurplePlugin *plugin)
{
PurpleMonoPlugin *mplug;
purple_debug(PURPLE_DEBUG_INFO, "mono", "Destroying plugin\n");
mplug = (PurpleMonoPlugin*)plugin->info->extra_info;
ml_invoke(mplug->destroy, mplug->obj, NULL);
if (plugin->info) {
g_free(plugin->info->name);
g_free(plugin->info->version);
g_free(plugin->info->summary);
g_free(plugin->info->description);
g_free(plugin->info->author);
g_free(plugin->info->homepage);
}
if (mplug) {
if (mplug->assm) {
mono_assembly_close(mplug->assm);
}
g_free(mplug);
mplug = NULL;
}
}
/******************************************************************************
* Plugin Stuff
*****************************************************************************/
static void plugin_destroy(PurplePlugin *plugin)
{
ml_uninit();
}
static PurplePluginLoaderInfo loader_info =
{
NULL,
probe_mono_plugin,
load_mono_plugin,
unload_mono_plugin,
destroy_mono_plugin,
/* padding */
NULL,
NULL,
NULL,
NULL
};
static PurplePluginInfo info =
{
PURPLE_PLUGIN_MAGIC,
PURPLE_MAJOR_VERSION,
PURPLE_MINOR_VERSION,
PURPLE_PLUGIN_LOADER,
NULL,
0,
NULL,
PURPLE_PRIORITY_DEFAULT,
MONO_PLUGIN_ID,
N_("Mono Plugin Loader"),
DISPLAY_VERSION,
N_("Loads .NET plugins with Mono."),
N_("Loads .NET plugins with Mono."),
"Eoin Coffey <ecoffey@simla.colostate.edu>",
PURPLE_WEBSITE,
NULL,
NULL,
plugin_destroy,
NULL,
&loader_info,
NULL,
NULL,
/* padding */
NULL,
NULL,
NULL,
NULL
};
static void init_plugin(PurplePlugin *plugin)
{
ml_init();
loader_info.exts = g_list_append(loader_info.exts, "dll");
}
PURPLE_INIT_PLUGIN(mono, init_plugin, info)
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