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@ -13,148 +13,166 @@
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#include <string.h> |
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typedef struct { |
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pcre_keyvalue_buffer *redirect; |
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int context_ndx; /* to which apply me */ |
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unsigned short redirect_code; |
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pcre_keyvalue_buffer *redirect; |
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int redirect_code; |
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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_FUNC(mod_redirect_init) { |
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return calloc(1, sizeof(plugin_data)); |
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return calloc(1, sizeof(plugin_data)); |
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} |
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static void mod_redirect_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: /* url.redirect */ |
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if (cpv->vtype == T_CONFIG_LOCAL) |
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pcre_keyvalue_buffer_free(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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FREE_FUNC(mod_redirect_free) { |
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plugin_data *p = p_d; |
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if (!p) return HANDLER_GO_ON; |
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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 (NULL == s) continue; |
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pcre_keyvalue_buffer_free(s->redirect); |
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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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plugin_data *p = p_d; |
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if (!p) return HANDLER_GO_ON; |
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UNUSED(srv); |
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mod_redirect_free_config(p); |
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free(p->cvlist); |
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free(p); |
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return HANDLER_GO_ON; |
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} |
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SETDEFAULTS_FUNC(mod_redirect_set_defaults) { |
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plugin_data *p = p_d; |
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size_t i = 0; |
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config_values_t cv[] = { |
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{ "url.redirect", NULL, T_CONFIG_LOCAL, T_CONFIG_SCOPE_CONNECTION }, /* 0 */ |
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{ "url.redirect-code", NULL, T_CONFIG_SHORT, 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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if (!p) return HANDLER_ERROR; |
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/* 0 */ |
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p->config_storage = calloc(srv->config_context->used, sizeof(plugin_config *)); |
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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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size_t j; |
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const data_unset *du; |
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const data_array *da; |
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s = calloc(1, sizeof(plugin_config)); |
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s->redirect = pcre_keyvalue_buffer_init(); |
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s->redirect_code = 301; |
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cv[0].destination = s->redirect; |
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cv[1].destination = &(s->redirect_code); |
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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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if (s->redirect_code < 100 || s->redirect_code >= 1000) s->redirect_code = 301; |
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if (NULL == (du = array_get_element_klen(config->value, CONST_STR_LEN("url.redirect")))) { |
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/* no url.redirect defined */ |
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continue; |
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} |
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da = (const data_array *)du; |
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if (du->type != TYPE_ARRAY || !array_is_kvstring(&da->value)) { |
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log_error_write(srv, __FILE__, __LINE__, "s", |
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"unexpected value for url.redirect; expected list of \"regex\" => \"redirect\""); |
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return HANDLER_ERROR; |
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} |
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for (j = 0; j < da->value.used; j++) { |
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data_string *ds = (data_string *)da->value.data[j]; |
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if (srv->srvconf.http_url_normalize) { |
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pcre_keyvalue_burl_normalize_key(&ds->key, srv->tmp_buf); |
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pcre_keyvalue_burl_normalize_value(&ds->value, srv->tmp_buf); |
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} |
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if (0 != pcre_keyvalue_buffer_append(srv, s->redirect, &ds->key, &ds->value)) { |
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log_error_write(srv, __FILE__, __LINE__, "sb", |
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"pcre-compile failed for", &ds->key); |
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return HANDLER_ERROR; |
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} |
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} |
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} |
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return HANDLER_GO_ON; |
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static void mod_redirect_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: /* url.redirect */ |
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if (cpv->vtype == T_CONFIG_LOCAL) |
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pconf->redirect = cpv->v.v; |
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break; |
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case 1: /* url.redirect-code */ |
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pconf->redirect_code = cpv->v.shrt; |
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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 int mod_redirect_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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static void mod_redirect_merge_config(plugin_config * const pconf, const config_plugin_value_t *cpv) { |
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do { |
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mod_redirect_merge_config_cpv(pconf, cpv); |
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} while ((++cpv)->k_id != -1); |
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} |
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p->conf.redirect = s->redirect; |
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p->conf.redirect_code = s->redirect_code; |
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p->conf.context_ndx = 0; |
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static void mod_redirect_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_redirect_merge_config(&p->conf, p->cvlist+p->cvlist[i].v.u2[0]); |
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} |
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} |
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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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static pcre_keyvalue_buffer * mod_redirect_parse_list(server *srv, const array *a, const int condidx) { |
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pcre_keyvalue_buffer * const redirect = pcre_keyvalue_buffer_init(); |
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redirect->x0 = (unsigned short)condidx; |
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log_error_st * const errh = srv->errh; |
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for (uint32_t j = 0; j < a->used; ++j) { |
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data_string *ds = (data_string *)a->data[j]; |
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if (srv->srvconf.http_url_normalize) { |
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pcre_keyvalue_burl_normalize_key(&ds->key, srv->tmp_buf); |
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pcre_keyvalue_burl_normalize_value(&ds->value, srv->tmp_buf); |
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} |
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if (!pcre_keyvalue_buffer_append(errh, redirect, &ds->key, &ds->value)){ |
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log_error(errh, __FILE__, __LINE__, |
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"pcre-compile failed for %s", ds->key.ptr); |
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pcre_keyvalue_buffer_free(redirect); |
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return NULL; |
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} |
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} |
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return redirect; |
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} |
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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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SETDEFAULTS_FUNC(mod_redirect_set_defaults) { |
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static const config_plugin_keys_t cpk[] = { |
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{ CONST_STR_LEN("url.redirect"), |
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T_CONFIG_ARRAY, |
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T_CONFIG_SCOPE_CONNECTION } |
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,{ CONST_STR_LEN("url.redirect-code"), |
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T_CONFIG_SHORT, |
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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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plugin_data * const p = p_d; |
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if (!config_plugin_values_init(srv, p, cpk, "mod_redirect")) |
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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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for (; -1 != cpv->k_id; ++cpv) { |
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switch (cpv->k_id) { |
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case 0: /* url.redirect */ |
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if (!array_is_kvstring(cpv->v.a)) { |
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log_error(srv->errh, __FILE__, __LINE__, |
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"unexpected value for %s; " |
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"expected list of \"regex\" => \"redirect\"", |
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cpk[cpv->k_id].k); |
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return HANDLER_ERROR; |
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} |
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cpv->v.v = |
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mod_redirect_parse_list(srv, cpv->v.a, p->cvlist[i].k_id); |
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if (NULL == cpv->v.v) return HANDLER_ERROR; |
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cpv->vtype = T_CONFIG_LOCAL; |
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break; |
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case 1: /* url.redirect-code */ |
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if (cpv->v.shrt < 100 || cpv->v.shrt >= 1000) cpv->v.shrt = 301; |
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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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} |
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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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p->defaults.redirect_code = 301; |
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if (0 == strcmp(du->key.ptr, "url.redirect")) { |
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p->conf.redirect = s->redirect; |
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p->conf.context_ndx = i; |
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} else if (0 == strcmp(du->key.ptr, "url.redirect-code")) { |
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p->conf.redirect_code = s->redirect_code; |
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} |
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} |
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} |
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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_redirect_merge_config(&p->defaults, cpv); |
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} |
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return 0; |
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return HANDLER_GO_ON; |
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} |
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URIHANDLER_FUNC(mod_redirect_uri_handler) { |
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plugin_data *p = p_d; |
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plugin_data * const p = p_d; |
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struct burl_parts_t burl; |
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pcre_keyvalue_ctx ctx; |
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handler_t rc; |
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mod_redirect_patch_connection(srv, con, p); |
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if (!p->conf.redirect->used) return HANDLER_GO_ON; |
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ctx.cache = p->conf.context_ndx |
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? &con->cond_cache[p->conf.context_ndx] |
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mod_redirect_patch_config(con, p); |
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if (!p->conf.redirect || !p->conf.redirect->used) return HANDLER_GO_ON; |
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ctx.cache = p->conf.redirect->x0 |
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? &con->cond_cache[p->conf.redirect->x0] |
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: NULL; |
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ctx.burl = &burl; |
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burl.scheme = con->uri.scheme; |
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