Annotation of embedaddon/lighttpd/src/mod_indexfile.c, revision 1.1
1.1 ! misho 1: #include "base.h"
! 2: #include "log.h"
! 3: #include "buffer.h"
! 4:
! 5: #include "plugin.h"
! 6:
! 7: #include "stat_cache.h"
! 8:
! 9: #include <ctype.h>
! 10: #include <stdlib.h>
! 11: #include <string.h>
! 12: #include <errno.h>
! 13:
! 14: /* plugin config for all request/connections */
! 15:
! 16: typedef struct {
! 17: array *indexfiles;
! 18: } plugin_config;
! 19:
! 20: typedef struct {
! 21: PLUGIN_DATA;
! 22:
! 23: buffer *tmp_buf;
! 24:
! 25: plugin_config **config_storage;
! 26:
! 27: plugin_config conf;
! 28: } plugin_data;
! 29:
! 30: /* init the plugin data */
! 31: INIT_FUNC(mod_indexfile_init) {
! 32: plugin_data *p;
! 33:
! 34: p = calloc(1, sizeof(*p));
! 35:
! 36: p->tmp_buf = buffer_init();
! 37:
! 38: return p;
! 39: }
! 40:
! 41: /* detroy the plugin data */
! 42: FREE_FUNC(mod_indexfile_free) {
! 43: plugin_data *p = p_d;
! 44:
! 45: UNUSED(srv);
! 46:
! 47: if (!p) return HANDLER_GO_ON;
! 48:
! 49: if (p->config_storage) {
! 50: size_t i;
! 51: for (i = 0; i < srv->config_context->used; i++) {
! 52: plugin_config *s = p->config_storage[i];
! 53:
! 54: if (!s) continue;
! 55:
! 56: array_free(s->indexfiles);
! 57:
! 58: free(s);
! 59: }
! 60: free(p->config_storage);
! 61: }
! 62:
! 63: buffer_free(p->tmp_buf);
! 64:
! 65: free(p);
! 66:
! 67: return HANDLER_GO_ON;
! 68: }
! 69:
! 70: /* handle plugin config and check values */
! 71:
! 72: SETDEFAULTS_FUNC(mod_indexfile_set_defaults) {
! 73: plugin_data *p = p_d;
! 74: size_t i = 0;
! 75:
! 76: config_values_t cv[] = {
! 77: { "index-file.names", NULL, T_CONFIG_ARRAY, T_CONFIG_SCOPE_CONNECTION }, /* 0 */
! 78: { "server.indexfiles", NULL, T_CONFIG_ARRAY, T_CONFIG_SCOPE_CONNECTION }, /* 1 */
! 79: { NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
! 80: };
! 81:
! 82: if (!p) return HANDLER_ERROR;
! 83:
! 84: p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *));
! 85:
! 86: for (i = 0; i < srv->config_context->used; i++) {
! 87: plugin_config *s;
! 88:
! 89: s = calloc(1, sizeof(plugin_config));
! 90: s->indexfiles = array_init();
! 91:
! 92: cv[0].destination = s->indexfiles;
! 93: cv[1].destination = s->indexfiles; /* old name for [0] */
! 94:
! 95: p->config_storage[i] = s;
! 96:
! 97: if (0 != config_insert_values_global(srv, ((data_config *)srv->config_context->data[i])->value, cv)) {
! 98: return HANDLER_ERROR;
! 99: }
! 100: }
! 101:
! 102: return HANDLER_GO_ON;
! 103: }
! 104:
! 105: #define PATCH(x) \
! 106: p->conf.x = s->x;
! 107: static int mod_indexfile_patch_connection(server *srv, connection *con, plugin_data *p) {
! 108: size_t i, j;
! 109: plugin_config *s = p->config_storage[0];
! 110:
! 111: PATCH(indexfiles);
! 112:
! 113: /* skip the first, the global context */
! 114: for (i = 1; i < srv->config_context->used; i++) {
! 115: data_config *dc = (data_config *)srv->config_context->data[i];
! 116: s = p->config_storage[i];
! 117:
! 118: /* condition didn't match */
! 119: if (!config_check_cond(srv, con, dc)) continue;
! 120:
! 121: /* merge config */
! 122: for (j = 0; j < dc->value->used; j++) {
! 123: data_unset *du = dc->value->data[j];
! 124:
! 125: if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.indexfiles"))) {
! 126: PATCH(indexfiles);
! 127: } else if (buffer_is_equal_string(du->key, CONST_STR_LEN("index-file.names"))) {
! 128: PATCH(indexfiles);
! 129: }
! 130: }
! 131: }
! 132:
! 133: return 0;
! 134: }
! 135: #undef PATCH
! 136:
! 137: URIHANDLER_FUNC(mod_indexfile_subrequest) {
! 138: plugin_data *p = p_d;
! 139: size_t k;
! 140: stat_cache_entry *sce = NULL;
! 141:
! 142: if (con->mode != DIRECT) return HANDLER_GO_ON;
! 143:
! 144: if (con->uri.path->used == 0) return HANDLER_GO_ON;
! 145: if (con->uri.path->ptr[con->uri.path->used - 2] != '/') return HANDLER_GO_ON;
! 146:
! 147: mod_indexfile_patch_connection(srv, con, p);
! 148:
! 149: if (con->conf.log_request_handling) {
! 150: log_error_write(srv, __FILE__, __LINE__, "s", "-- handling the request as Indexfile");
! 151: log_error_write(srv, __FILE__, __LINE__, "sb", "URI :", con->uri.path);
! 152: }
! 153:
! 154: /* indexfile */
! 155: for (k = 0; k < p->conf.indexfiles->used; k++) {
! 156: data_string *ds = (data_string *)p->conf.indexfiles->data[k];
! 157:
! 158: if (ds->value && ds->value->ptr[0] == '/') {
! 159: /* if the index-file starts with a prefix as use this file as
! 160: * index-generator */
! 161: buffer_copy_string_buffer(p->tmp_buf, con->physical.doc_root);
! 162: } else {
! 163: buffer_copy_string_buffer(p->tmp_buf, con->physical.path);
! 164: }
! 165: buffer_append_string_buffer(p->tmp_buf, ds->value);
! 166:
! 167: if (HANDLER_ERROR == stat_cache_get_entry(srv, con, p->tmp_buf, &sce)) {
! 168: if (errno == EACCES) {
! 169: con->http_status = 403;
! 170: buffer_reset(con->physical.path);
! 171:
! 172: return HANDLER_FINISHED;
! 173: }
! 174:
! 175: if (errno != ENOENT &&
! 176: errno != ENOTDIR) {
! 177: /* we have no idea what happend. let's tell the user so. */
! 178:
! 179: con->http_status = 500;
! 180:
! 181: log_error_write(srv, __FILE__, __LINE__, "ssbsb",
! 182: "file not found ... or so: ", strerror(errno),
! 183: con->uri.path,
! 184: "->", con->physical.path);
! 185:
! 186: buffer_reset(con->physical.path);
! 187:
! 188: return HANDLER_FINISHED;
! 189: }
! 190: continue;
! 191: }
! 192:
! 193: /* rewrite uri.path to the real path (/ -> /index.php) */
! 194: buffer_append_string_buffer(con->uri.path, ds->value);
! 195: buffer_copy_string_buffer(con->physical.path, p->tmp_buf);
! 196:
! 197: /* fce is already set up a few lines above */
! 198:
! 199: return HANDLER_GO_ON;
! 200: }
! 201:
! 202: /* not found */
! 203: return HANDLER_GO_ON;
! 204: }
! 205:
! 206: /* this function is called at dlopen() time and inits the callbacks */
! 207:
! 208: int mod_indexfile_plugin_init(plugin *p);
! 209: int mod_indexfile_plugin_init(plugin *p) {
! 210: p->version = LIGHTTPD_VERSION_ID;
! 211: p->name = buffer_init_string("indexfile");
! 212:
! 213: p->init = mod_indexfile_init;
! 214: p->handle_subrequest_start = mod_indexfile_subrequest;
! 215: p->set_defaults = mod_indexfile_set_defaults;
! 216: p->cleanup = mod_indexfile_free;
! 217:
! 218: p->data = NULL;
! 219:
! 220: return 0;
! 221: }
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