[mod_geoip] use config_plugin_values_init()
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66a460d977
commit
b07bc5d266
277
src/mod_geoip.c
277
src/mod_geoip.c
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@ -55,162 +55,163 @@
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*/
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/* plugin config for all request/connections */
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typedef struct {
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unsigned short mem_cache;
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buffer *db_name;
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GeoIP *gi;
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GeoIP *gi;
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} plugin_config;
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typedef struct {
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PLUGIN_DATA;
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plugin_config **config_storage;
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plugin_config conf;
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PLUGIN_DATA;
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plugin_config defaults;
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plugin_config conf;
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} plugin_data;
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/* init the plugin data */
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INIT_FUNC(mod_geoip_init) {
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plugin_data *p;
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p = calloc(1, sizeof(*p));
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return p;
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return calloc(1, sizeof(plugin_data));
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}
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static void mod_geoip_free_config(plugin_data * const p) {
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if (NULL == p->cvlist) return;
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/* (init i to 0 if global context; to 1 to skip empty global context) */
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for (int i = !p->cvlist[0].v.u2[1], used = p->nconfig; i < used; ++i) {
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config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0];
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for (; -1 != cpv->k_id; ++cpv) {
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switch (cpv->k_id) {
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case 0: /* geoip.db-filename */
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if (cpv->vtype == T_CONFIG_LOCAL && NULL != cpv->v.v)
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GeoIP_delete(cpv->v.v);
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break;
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default:
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break;
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}
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}
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}
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}
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/* destroy the plugin data */
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FREE_FUNC(mod_geoip_free) {
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plugin_data *p = p_d;
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plugin_data * const p = p_d;
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if (!p) return HANDLER_GO_ON;
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UNUSED(srv);
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UNUSED(srv);
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mod_geoip_free_config(p);
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if (!p) return HANDLER_GO_ON;
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free(p->cvlist);
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free(p);
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if (p->config_storage) {
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size_t i;
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for (i = 0; i < srv->config_context->used; i++) {
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plugin_config *s = p->config_storage[i];
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if (!s) continue;
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buffer_free(s->db_name);
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/* clean up */
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if (s->gi) GeoIP_delete(s->gi);
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free(s);
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}
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free(p->config_storage);
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}
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free(p);
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return HANDLER_GO_ON;
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return HANDLER_GO_ON;
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}
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/* handle plugin config and check values */
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static int mod_geoip_open_db(server *srv, config_plugin_value_t * const cpv, int mem_cache) {
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/* country db filename is required! */
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if (buffer_is_empty(cpv->v.b)) {
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cpv->v.v = NULL;
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return 1;
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}
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/* let's start cooking */
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const int mode = (mem_cache)
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? GEOIP_MEMORY_CACHE | GEOIP_CHECK_CACHE
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: GEOIP_STANDARD | GEOIP_CHECK_CACHE;
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GeoIP *gi = GeoIP_open(cpv->v.b->ptr, mode);
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if (NULL == gi) {
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log_error(srv->errh, __FILE__, __LINE__,
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"failed to open GeoIP database!!!");
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return 0;
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}
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/* is the db supported ? */
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if ( gi->databaseType != GEOIP_COUNTRY_EDITION
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&& gi->databaseType != GEOIP_CITY_EDITION_REV0
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&& gi->databaseType != GEOIP_CITY_EDITION_REV1) {
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log_error(srv->errh, __FILE__, __LINE__,
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"GeoIP database is of unsupported type!!!");
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GeoIP_delete(gi);
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return 0;
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}
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cpv->vtype = T_CONFIG_LOCAL;
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cpv->v.v = gi;
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return 1;
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}
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static void mod_geoip_merge_config_cpv(plugin_config * const pconf, const config_plugin_value_t * const cpv) {
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switch (cpv->k_id) { /* index into static config_plugin_keys_t cpk[] */
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case 0: /* geoip.db-filename */
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if (cpv->vtype != T_CONFIG_LOCAL) break;
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pconf->gi = cpv->v.v;
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break;
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case 1: /* geoip.memory-cache */
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break;
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default:/* should not happen */
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return;
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}
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}
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static void mod_geoip_merge_config(plugin_config * const pconf, const config_plugin_value_t *cpv) {
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do {
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mod_geoip_merge_config_cpv(pconf, cpv);
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} while ((++cpv)->k_id != -1);
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}
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static void mod_geoip_patch_config(connection * const con, plugin_data * const p) {
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memcpy(&p->conf, &p->defaults, sizeof(plugin_config));
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for (int i = 1, used = p->nconfig; i < used; ++i) {
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if (config_check_cond(con, (uint32_t)p->cvlist[i].k_id))
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mod_geoip_merge_config(&p->conf, p->cvlist + p->cvlist[i].v.u2[0]);
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}
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}
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SETDEFAULTS_FUNC(mod_geoip_set_defaults) {
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plugin_data *p = p_d;
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size_t i = 0;
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static const config_plugin_keys_t cpk[] = {
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{ CONST_STR_LEN("geoip.db-filename"),
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T_CONFIG_STRING,
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T_CONFIG_SCOPE_CONNECTION }
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,{ CONST_STR_LEN("geoip.memory-cache"),
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T_CONFIG_BOOL,
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T_CONFIG_SCOPE_CONNECTION }
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,{ NULL, 0,
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T_CONFIG_UNSET,
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T_CONFIG_SCOPE_UNSET }
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};
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config_values_t cv[] = {
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{ "geoip.db-filename", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 0 */
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{ "geoip.memory-cache", NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 1 */
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{ NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
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};
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plugin_data * const p = p_d;
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if (!config_plugin_values_init(srv, p, cpk, "mod_geoip"))
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return HANDLER_ERROR;
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if (!p) return HANDLER_ERROR;
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/* process and validate config directives
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* (init i to 0 if global context; to 1 to skip empty global context) */
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for (int i = !p->cvlist[0].v.u2[1]; i < p->nconfig; ++i) {
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config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0];
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config_plugin_value_t *fn = NULL;
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int mem_cache = 0;
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for (; -1 != cpv->k_id; ++cpv) {
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switch (cpv->k_id) {
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case 0: /* geoip.db-filename */
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fn = cpv;
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break;
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case 1: /* geoip.memory-cache */
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mem_cache = cpv->v.u;
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break;
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default:/* should not happen */
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break;
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}
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}
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if (fn) {
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if (!mod_geoip_open_db(srv, fn, mem_cache))
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return HANDLER_ERROR;
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}
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}
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p->config_storage = calloc(srv->config_context->used, sizeof(plugin_config *));
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/* initialize p->defaults from global config context */
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if (p->nconfig > 0 && p->cvlist->v.u2[1]) {
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const config_plugin_value_t *cpv = p->cvlist + p->cvlist->v.u2[0];
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if (-1 != cpv->k_id)
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mod_geoip_merge_config(&p->defaults, cpv);
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}
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for (i = 0; i < srv->config_context->used; i++) {
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data_config const* config = (data_config const*)srv->config_context->data[i];
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plugin_config *s;
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int mode;
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s = calloc(1, sizeof(plugin_config));
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s->db_name = buffer_init();
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s->mem_cache = 0; /* default: do not load db to cache */
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s->gi = NULL;
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cv[0].destination = s->db_name;
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cv[1].destination = &(s->mem_cache);
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p->config_storage[i] = s;
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if (0 != config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION)) {
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return HANDLER_ERROR;
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}
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mode = GEOIP_STANDARD | GEOIP_CHECK_CACHE;
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/* country db filename is requeried! */
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if (!buffer_is_empty(s->db_name)) {
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/* let's start cooking */
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if (s->mem_cache != 0)
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mode = GEOIP_MEMORY_CACHE | GEOIP_CHECK_CACHE;
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if (NULL == (s->gi = GeoIP_open(s->db_name->ptr, mode))) {
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log_error_write(srv, __FILE__, __LINE__, "s",
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"failed to open GeoIP database!!!");
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return HANDLER_ERROR;
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}
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/* is the db supported ? */
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if (s->gi->databaseType != GEOIP_COUNTRY_EDITION &&
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s->gi->databaseType != GEOIP_CITY_EDITION_REV0 &&
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s->gi->databaseType != GEOIP_CITY_EDITION_REV1) {
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log_error_write(srv, __FILE__, __LINE__, "s",
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"GeoIP database is of unsupported type!!!");
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}
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}
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}
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return HANDLER_GO_ON;
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return HANDLER_GO_ON;
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}
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#define PATCH(x) \
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p->conf.x = s->x;
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static int mod_geoip_patch_connection(server *srv, connection *con, plugin_data *p) {
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size_t i, j;
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plugin_config *s = p->config_storage[0];
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PATCH(db_name);
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PATCH(mem_cache);
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PATCH(gi);
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/* skip the first, the global context */
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for (i = 1; i < srv->config_context->used; i++) {
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if (!config_check_cond(con, i)) continue; /* condition not matched */
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data_config *dc = (data_config *)srv->config_context->data[i];
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s = p->config_storage[i];
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/* merge config */
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for (j = 0; j < dc->value->used; j++) {
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data_unset *du = dc->value->data[j];
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if (buffer_is_equal_string(&du->key, CONST_STR_LEN("geoip.db-filename"))) {
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PATCH(db_name);
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}
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if (buffer_is_equal_string(&du->key, CONST_STR_LEN("geoip.memory-cache"))) {
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PATCH(mem_cache);
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}
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}
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}
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return 0;
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}
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#undef PATCH
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static handler_t mod_geoip_query (connection *con, plugin_data *p) {
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GeoIPRecord *gir;
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const char *remote_ip = con->dst_addr_buf->ptr;
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@ -279,14 +280,12 @@ static handler_t mod_geoip_query (connection *con, plugin_data *p) {
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}
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CONNECTION_FUNC(mod_geoip_handle_request_env) {
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plugin_data *p = p_d;
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mod_geoip_patch_connection(srv, con, p);
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if (buffer_is_empty(p->conf.db_name)) return HANDLER_GO_ON;
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return mod_geoip_query(con, p);
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UNUSED(srv);
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plugin_data *p = p_d;
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mod_geoip_patch_config(con, p);
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return (p->conf.gi) ? mod_geoip_query(con, p) : HANDLER_GO_ON;
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}
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/* this function is called at dlopen() time and inits the callbacks */
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int mod_geoip_plugin_init(plugin *p);
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int mod_geoip_plugin_init(plugin *p) {
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