static void *ekg2_dlopen(const char *name) {
#ifdef NO_POSIX_SYSTEM
void *tmp = LoadLibraryA(name);
#else
/* RTLD_LAZY is bad flag, because code can SEGV on executing undefined symbols...
* it's better to fail earlier than later with SIGSEGV
*
* RTLD_GLOBAL is bad flag also, because we have no need to export symbols to another plugns
* we should do it by queries... Yeah, I know it was used for example in perl && irc plugin.
* But we cannot do it. Because if we load irc before sim plugin. Than we'll have unresolved symbols
* even if we load sim plugin later.
*/
/*
* RTLD_GLOBAL is required by perl and python plugins...
* need investigation. [XXX]
*/
void *tmp = dlopen(name, RTLD_NOW | RTLD_GLOBAL);
#endif
if (!tmp) {
debug_warn("[plugin] could not be loaded: %s %s\n", name, dlerror());
} else {
debug_ok("[plugin] loaded: %s\n", name);
}
return tmp;
}
/*
* copy/change from netifd
*/
static void
setup_signals(void)
{
struct sigaction s;
memset(&s, 0, sizeof(s));
s.sa_handler = handle_signal;
s.sa_flags = 0;
sigaction(SIGINT, &s, NULL);
sigaction(SIGTERM, &s, NULL);
sigaction(SIGUSR1, &s, NULL);
sigaction(SIGUSR2, &s, NULL);
s.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &s, NULL);
os_sigaction_callstack();
debug_ok("setup signal");
}
static GModule *ekg2_dlopen(const char *name) {
/* RTLD_LAZY is bad flag, because code can SEGV on executing undefined symbols...
* it's better to fail earlier than later with SIGSEGV
*
* RTLD_GLOBAL is bad flag also, because we have no need to export symbols to another plugns
* we should do it by queries... Yeah, I know it was used for example in perl && irc plugin.
* But we cannot do it. Because if we load irc before sim plugin. Than we'll have unresolved symbols
* even if we load sim plugin later.
*/
/*
* RTLD_GLOBAL is required by perl and python plugins...
* need investigation. [XXX]
*/
GModule *tmp = g_module_open(name, 0);
if (!tmp) {
char *errstr = ekg_recode_from_locale(g_module_error());
debug_warn("[plugin] could not be loaded: %s %s\n", name, errstr);
g_free(errstr);
} else {
debug_ok("[plugin] loaded: %s\n", name);
}
return tmp;
}
/*
* plugin_load()
*
* ³aduje wtyczkê o podanej nazwie.
*
* 0/-1
*/
int plugin_load(const char *name, int prio, int quiet)
{
#ifdef SHARED_LIBS
const gchar *env_ekg_plugins_path = NULL;
char *init = NULL;
gchar *lib;
gchar *libname;
GModule *plugin = NULL;
#endif
plugin_t *pl;
int (*plugin_init)() = NULL;
g_assert(name);
if (plugin_find(name)) {
printq("plugin_already_loaded", name);
return -1;
}
#ifdef SHARED_LIBS
libname = g_strdup_printf("%s.la", name);
if ((env_ekg_plugins_path = g_getenv("EKG_PLUGINS_PATH"))) {
lib = g_build_filename(env_ekg_plugins_path, libname, NULL);
plugin = ekg2_dlopen(lib);
g_free(lib);
if (!plugin) {
lib = g_build_filename(env_ekg_plugins_path, name, libname, NULL);
plugin = ekg2_dlopen(lib);
g_free(lib);
}
}
/* The following lets ekg2 load plugins when it is run directly from
* the source tree, without installation. This can be beneficial when
* developing the program, or for less knowlegeable users, who don't
* know how to or cannot for some other reason use installation prefix
* to install in their home directory. It might be also useful
* for win32-style installs.
*/
if (!plugin && rel_plugin_dir) {
lib = g_build_filename(rel_plugin_dir, "plugins", name, libname, NULL);
plugin = ekg2_dlopen(lib);
g_free(lib);
}
if (!plugin) {
lib = g_build_filename(PLUGINDIR, libname, NULL);
plugin = ekg2_dlopen(lib);
g_free(lib);
}
g_free(libname);
/* prefer shared plugins */
if (plugin) {
init = g_strdup_printf("%s_plugin_init", name);
plugin_init = ekg2_dlsym(plugin, init);
g_free(init);
}
#endif /* SHARED_LIBS */
#ifdef STATIC_LIBS
/* if no shared plugin, fallback to the static one */
if (!plugin_init) {
STATIC_PLUGIN_DECLS
STATIC_PLUGIN_CALLS
if (plugin_init)
debug_ok("[plugin] statically compiled in: %s\n", name);
}
void handle_request(uint8_t *data, uint16_t length) {
debug_string_p(PSTR("HTTP: "));
uint8_t type = 0;
uint8_t path_start = 0;
switch(data[0]) {
case 'H': type = HTTP_METHOD_HEAD; path_start = 5; break;
case 'G': type = HTTP_METHOD_GET; path_start = 4; break;
case 'D': type = HTTP_METHOD_DELETE; path_start = 7; break;
case 'P':
switch(data[1]) {
case 'O': type = HTTP_METHOD_POST; path_start = 5; break;
case 'U': type = HTTP_METHOD_PUT; path_start = 4; break;
default: type = 0;
}
break;
}
// Fetch path only if we have a type
if (type) {
uint8_t path_length = 0;
uint8_t *path = &data[path_start];
while (*path++ > 0x20) {
path_length++;
}
// Make space after path 0x00 (for path matching)
data[path_start + path_length] = 0x00;
// Debug path
debug_string_n((char *)data, path_start + path_length);
}
// Get callback for type/path combination
// path_services_get(&data[path_start]);
uint8_t i;
void (*callback)(uint8_t, uint8_t *);
for (i = 0, callback = 0; i < EXT_WWW_SERVER_SERVICES_LIST_SIZE; i++) {
if (path_services[i].path && path_matches(&data[path_start], path_services[i].path)) {
callback = path_services[i].callback;
break;
}
}
// Prepare tcp reply
rbuffer = tcp_prepare_reply();
rlength = 0;
// Increase ack with length
add_value_to_buffer(length, &buffer_out[TCP_PTR_ACK_NR], 4);
// Set ACK flag
tcp_add_flags(TCP_FLAG_ACK | TCP_FLAG_PUSH | TCP_FLAG_FIN);
// Check if we can handle the request
if (callback) {
callback(type, data);
} else {
// Return 404, not found
www_server_reply_header(HTTP_STATUS_404, HTTP_CONTENT_TYPE_PLAIN);
www_server_reply_add_p(not_found);
www_server_reply_send();
}
debug_ok();
}