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#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_errno.h>
#include <ngx_string.h>
#include <ngx_files.h>
#include <ngx_conf_file.h>
#include <ngx_http.h>
#include <ngx_http_config.h>
#include <ngx_http_index_handler.h>
static void *ngx_http_index_create_conf(ngx_pool_t *pool);
static void *ngx_http_index_merge_conf(ngx_pool_t *p,
void *parent, void *child);
static char *ngx_http_index_set_index(ngx_conf_t *cf, ngx_command_t *cmd,
char *conf);
static ngx_command_t ngx_http_index_commands[] = {
{ngx_string("index"),
NGX_CONF_ANY,
ngx_http_index_set_index,
NGX_HTTP_LOC_CONF,
0},
{ngx_string(""), 0, NULL, 0, 0}
};
ngx_http_module_t ngx_http_index_module_ctx = {
NGX_HTTP_MODULE,
NULL, /* create server config */
NULL, /* init server config */
ngx_http_index_create_conf, /* create location config */
ngx_http_index_merge_conf, /* merge location config */
NULL, /* translate handler */
NULL, /* output header filter */
NULL, /* next output header filter */
NULL, /* output body filter */
NULL, /* next output body filter */
};
ngx_module_t ngx_http_index_module = {
&ngx_http_index_module_ctx, /* module context */
ngx_http_index_commands, /* module directives */
NGX_HTTP_MODULE_TYPE, /* module type */
NULL /* init module */
};
int ngx_http_index_handler(ngx_http_request_t *r)
{
int i;
char *name, *file;
ngx_str_t loc, *index;
ngx_err_t err;
ngx_fd_t fd;
ngx_http_index_conf_t *cf;
cf = (ngx_http_index_conf_t *)
ngx_http_get_module_loc_conf(r, ngx_http_index_module_ctx);
ngx_test_null(name,
ngx_palloc(r->pool,
r->server->doc_root_len + r->uri.len
+ cf->max_index_len),
NGX_HTTP_INTERNAL_SERVER_ERROR);
loc.data = ngx_cpystrn(name, r->server->doc_root, r->server->doc_root_len);
file = ngx_cpystrn(loc.data, r->uri.data, r->uri.len + 1);
index = (ngx_str_t *) cf->indices->elts;
for (i = 0; i < cf->indices->nelts; i++) {
ngx_memcpy(file, index[i].data, index[i].len + 1);
fd = ngx_open_file(name, NGX_FILE_RDONLY);
if (fd == NGX_INVALID_FILE) {
err = ngx_errno;
if (err == NGX_ENOENT) {
continue;
}
#if (WIN32)
if (err == ERROR_PATH_NOT_FOUND) {
continue;
}
#endif
ngx_log_error(NGX_LOG_ERR, r->connection->log, err,
ngx_open_file_n " %s failed", name);
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
r->file.name.len = r->server->doc_root_len + r->uri.len + index[i].len;
r->file.name.data = name;
r->file.fd = fd;
loc.len = r->uri.len + index[i].len;
return ngx_http_internal_redirect(r, loc);
}
return NGX_DECLINED;
}
static void *ngx_http_index_create_conf(ngx_pool_t *pool)
{
ngx_http_index_conf_t *conf;
ngx_test_null(conf, ngx_pcalloc(pool, sizeof(ngx_http_index_conf_t)), NULL);
ngx_test_null(conf->indices,
ngx_create_array(pool, sizeof(ngx_str_t), 3),
NULL);
return conf;
}
static void *ngx_http_index_merge_conf(ngx_pool_t *p, void *parent, void *child)
{
ngx_http_index_conf_t *prev = (ngx_http_index_conf_t *) parent;
ngx_http_index_conf_t *conf = (ngx_http_index_conf_t *) child;
ngx_str_t *index;
if (conf->max_index_len == 0) {
if (prev->max_index_len != 0) {
return prev;
}
ngx_test_null(index, ngx_push_array(conf->indices), NULL);
index->len = sizeof(NGX_HTTP_INDEX) - 1;
index->data = NGX_HTTP_INDEX;
conf->max_index_len = sizeof(NGX_HTTP_INDEX);
}
return conf;
}
static char *ngx_http_index_set_index(ngx_conf_t *cf, ngx_command_t *cmd,
char *conf)
{
ngx_http_index_conf_t *icf = (ngx_http_index_conf_t *) conf;
int i;
ngx_str_t *index, *value;
value = (ngx_str_t *) cf->args->elts;
for (i = 1; i < cf->args->nelts; i++) {
ngx_test_null(index, ngx_push_array(icf->indices), NULL);
index->len = value[i].len;
index->data = value[i].data;
if (icf->max_index_len < index->len) {
icf->max_index_len = index->len;
}
}
return NULL;
}
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