| #include <ctype.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| |
| #include "base.h" |
| #include "log.h" |
| #include "buffer.h" |
| |
| #include "plugin.h" |
| |
| #include "stat_cache.h" |
| |
| /* plugin config for all request/connections */ |
| |
| typedef struct { |
| array *indexfiles; |
| } plugin_config; |
| |
| typedef struct { |
| PLUGIN_DATA; |
| |
| buffer *tmp_buf; |
| |
| plugin_config **config_storage; |
| |
| plugin_config conf; |
| } plugin_data; |
| |
| /* init the plugin data */ |
| INIT_FUNC(mod_indexfile_init) { |
| plugin_data *p; |
| |
| p = calloc(1, sizeof(*p)); |
| |
| p->tmp_buf = buffer_init(); |
| |
| return p; |
| } |
| |
| /* detroy the plugin data */ |
| FREE_FUNC(mod_indexfile_free) { |
| plugin_data *p = p_d; |
| |
| UNUSED(srv); |
| |
| if (!p) return HANDLER_GO_ON; |
| |
| if (p->config_storage) { |
| size_t i; |
| for (i = 0; i < srv->config_context->used; i++) { |
| plugin_config *s = p->config_storage[i]; |
| |
| if (!s) continue; |
| |
| array_free(s->indexfiles); |
| |
| free(s); |
| } |
| free(p->config_storage); |
| } |
| |
| buffer_free(p->tmp_buf); |
| |
| free(p); |
| |
| return HANDLER_GO_ON; |
| } |
| |
| /* handle plugin config and check values */ |
| |
| SETDEFAULTS_FUNC(mod_indexfile_set_defaults) { |
| plugin_data *p = p_d; |
| size_t i = 0; |
| |
| config_values_t cv[] = { |
| { "index-file.names", NULL, T_CONFIG_ARRAY, T_CONFIG_SCOPE_CONNECTION }, /* 0 */ |
| { "server.indexfiles", NULL, T_CONFIG_ARRAY, T_CONFIG_SCOPE_CONNECTION }, /* 1 */ |
| { NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET } |
| }; |
| |
| if (!p) return HANDLER_ERROR; |
| |
| p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *)); |
| |
| for (i = 0; i < srv->config_context->used; i++) { |
| plugin_config *s; |
| |
| s = calloc(1, sizeof(plugin_config)); |
| s->indexfiles = array_init(); |
| |
| cv[0].destination = s->indexfiles; |
| cv[1].destination = s->indexfiles; /* old name for [0] */ |
| |
| p->config_storage[i] = s; |
| |
| if (0 != config_insert_values_global(srv, ((data_config *)srv->config_context->data[i])->value, cv)) { |
| return HANDLER_ERROR; |
| } |
| } |
| |
| return HANDLER_GO_ON; |
| } |
| |
| #define PATCH(x) \ |
| p->conf.x = s->x; |
| static int mod_indexfile_patch_connection(server *srv, connection *con, plugin_data *p) { |
| size_t i, j; |
| plugin_config *s = p->config_storage[0]; |
| |
| PATCH(indexfiles); |
| |
| /* skip the first, the global context */ |
| for (i = 1; i < srv->config_context->used; i++) { |
| data_config *dc = (data_config *)srv->config_context->data[i]; |
| s = p->config_storage[i]; |
| |
| /* condition didn't match */ |
| if (!config_check_cond(srv, con, dc)) continue; |
| |
| /* merge config */ |
| for (j = 0; j < dc->value->used; j++) { |
| data_unset *du = dc->value->data[j]; |
| |
| if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.indexfiles"))) { |
| PATCH(indexfiles); |
| } else if (buffer_is_equal_string(du->key, CONST_STR_LEN("index-file.names"))) { |
| PATCH(indexfiles); |
| } |
| } |
| } |
| |
| return 0; |
| } |
| #undef PATCH |
| |
| URIHANDLER_FUNC(mod_indexfile_subrequest) { |
| plugin_data *p = p_d; |
| size_t k; |
| stat_cache_entry *sce = NULL; |
| |
| if (con->uri.path->used == 0) return HANDLER_GO_ON; |
| if (con->uri.path->ptr[con->uri.path->used - 2] != '/') return HANDLER_GO_ON; |
| |
| mod_indexfile_patch_connection(srv, con, p); |
| |
| if (con->conf.log_request_handling) { |
| log_error_write(srv, __FILE__, __LINE__, "s", "-- handling the request as Indexfile"); |
| log_error_write(srv, __FILE__, __LINE__, "sb", "URI :", con->uri.path); |
| } |
| |
| /* indexfile */ |
| for (k = 0; k < p->conf.indexfiles->used; k++) { |
| data_string *ds = (data_string *)p->conf.indexfiles->data[k]; |
| |
| if (ds->value && ds->value->ptr[0] == '/') { |
| /* if the index-file starts with a prefix as use this file as |
| * index-generator */ |
| buffer_copy_string_buffer(p->tmp_buf, con->physical.doc_root); |
| } else { |
| buffer_copy_string_buffer(p->tmp_buf, con->physical.path); |
| } |
| buffer_append_string_buffer(p->tmp_buf, ds->value); |
| |
| if (HANDLER_ERROR == stat_cache_get_entry(srv, con, p->tmp_buf, &sce)) { |
| if (errno == EACCES) { |
| con->http_status = 403; |
| buffer_reset(con->physical.path); |
| |
| return HANDLER_FINISHED; |
| } |
| |
| if (errno != ENOENT && |
| errno != ENOTDIR) { |
| /* we have no idea what happend. let's tell the user so. */ |
| |
| con->http_status = 500; |
| |
| log_error_write(srv, __FILE__, __LINE__, "ssbsb", |
| "file not found ... or so: ", strerror(errno), |
| con->uri.path, |
| "->", con->physical.path); |
| |
| buffer_reset(con->physical.path); |
| |
| return HANDLER_FINISHED; |
| } |
| continue; |
| } |
| |
| /* rewrite uri.path to the real path (/ -> /index.php) */ |
| buffer_append_string_buffer(con->uri.path, ds->value); |
| buffer_copy_string_buffer(con->physical.path, p->tmp_buf); |
| |
| /* fce is already set up a few lines above */ |
| |
| return HANDLER_GO_ON; |
| } |
| |
| /* not found */ |
| return HANDLER_GO_ON; |
| } |
| |
| /* this function is called at dlopen() time and inits the callbacks */ |
| |
| int mod_indexfile_plugin_init(plugin *p) { |
| p->version = LIGHTTPD_VERSION_ID; |
| p->name = buffer_init_string("indexfile"); |
| |
| p->init = mod_indexfile_init; |
| p->handle_subrequest_start = mod_indexfile_subrequest; |
| p->set_defaults = mod_indexfile_set_defaults; |
| p->cleanup = mod_indexfile_free; |
| |
| p->data = NULL; |
| |
| return 0; |
| } |