diff options
Diffstat (limited to 'data/lighttpd/lighttpd-1.4.53/src/mod_skeleton.c')
-rw-r--r-- | data/lighttpd/lighttpd-1.4.53/src/mod_skeleton.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/data/lighttpd/lighttpd-1.4.53/src/mod_skeleton.c b/data/lighttpd/lighttpd-1.4.53/src/mod_skeleton.c new file mode 100644 index 000000000..464f7b8de --- /dev/null +++ b/data/lighttpd/lighttpd-1.4.53/src/mod_skeleton.c @@ -0,0 +1,183 @@ +#include "first.h" + +#include <stdlib.h> +#include <string.h> + +#include "plugin.h" + +#include "base.h" +#include "log.h" +#include "buffer.h" +#include "array.h" + +/** + * this is a skeleton for a lighttpd plugin + * + * just replaces every occurrence of 'skeleton' by your plugin name + * + * e.g. in vim: + * + * :%s/skeleton/myhandler/ + * + */ + + +/* plugin config for all request/connections */ + +typedef struct { + array *match; +} plugin_config; + +typedef struct { + PLUGIN_DATA; + plugin_config **config_storage; + plugin_config conf; +} plugin_data; + + +#if 0 /* (needed if module keeps state for request) */ + +typedef struct { + size_t foo; +} handler_ctx; + +static handler_ctx * handler_ctx_init() { + handler_ctx * hctx = calloc(1, sizeof(*hctx)); + force_assert(hctx); + return hctx; +} + +static void handler_ctx_free(handler_ctx *hctx) { + free(hctx); +} + +#endif + + +/* init the plugin data */ +INIT_FUNC(mod_skeleton_init) { + return calloc(1, sizeof(plugin_data)); +} + +/* destroy the plugin data */ +FREE_FUNC(mod_skeleton_free) { + plugin_data *p = p_d; + UNUSED(srv); + if (!p) return HANDLER_GO_ON; + if (p->config_storage) { + for (size_t i = 0; i < srv->config_context->used; i++) { + plugin_config *s = p->config_storage[i]; + if (NULL == s) continue; + array_free(s->match); + free(s); + } + free(p->config_storage); + } + free(p); + return HANDLER_GO_ON; +} + +/* handle plugin config and check values */ +SETDEFAULTS_FUNC(mod_skeleton_set_defaults) { + plugin_data *p = p_d; + size_t i = 0; + + config_values_t cv[] = { + { "skeleton.array", NULL, T_CONFIG_ARRAY, T_CONFIG_SCOPE_CONNECTION }, /* 0 */ + { NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET } + }; + + if (!p) return HANDLER_ERROR; + + p->config_storage = calloc(1, srv->config_context->used * sizeof(plugin_config *)); + force_assert(p->config_storage); + + for (i = 0; i < srv->config_context->used; i++) { + data_config const* config = (data_config const*)srv->config_context->data[i]; + plugin_config *s = calloc(1, sizeof(plugin_config)); + force_assert(s); + s->match = array_init(); + + cv[0].destination = s->match; + + p->config_storage[i] = s; + + if (0 != config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION)) { + return HANDLER_ERROR; + } + + if (!array_is_vlist(s->match)) { + log_error_write(srv, __FILE__, __LINE__, "s", + "unexpected value for skeleton.array; expected list of \"urlpath\""); + return HANDLER_ERROR; + } + } + + return HANDLER_GO_ON; +} + +#define PATCH(x) \ + p->conf.x = s->x; +static int mod_skeleton_patch_connection(server *srv, connection *con, plugin_data *p) { + plugin_config *s = p->config_storage[0]; + + PATCH(match); + + /* skip the first, the global context */ + for (size_t 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 (size_t j = 0; j < dc->value->used; ++j) { + data_unset *du = dc->value->data[j]; + + if (buffer_is_equal_string(du->key, CONST_STR_LEN("skeleton.array"))) { + PATCH(match); + } + } + } + + return 0; +} +#undef PATCH + +URIHANDLER_FUNC(mod_skeleton_uri_handler) { + plugin_data *p = p_d; + UNUSED(srv); + + /* determine whether or not module participates in request */ + + if (con->mode != DIRECT) return HANDLER_GO_ON; + if (buffer_string_is_empty(con->uri.path)) return HANDLER_GO_ON; + + /* get module config for request */ + mod_skeleton_patch_connection(srv, con, p); + + if (NULL == array_match_value_suffix(p->conf.match, con->uri.path)) { + return HANDLER_GO_ON; + } + + /* module participates in request; business logic here */ + + con->http_status = 403; /* example: reject request with 403 Forbidden */ + return HANDLER_FINISHED; +} + +/* this function is called at dlopen() time and inits the callbacks */ +int mod_skeleton_plugin_init(plugin *p); +int mod_skeleton_plugin_init(plugin *p) { + p->version = LIGHTTPD_VERSION_ID; + p->name = buffer_init_string("skeleton"); + p->data = NULL; + p->init = mod_skeleton_init; + p->cleanup = mod_skeleton_free; + p->set_defaults= mod_skeleton_set_defaults; + + p->handle_uri_clean = mod_skeleton_uri_handler; + + return 0; +} |