diff options
Diffstat (limited to 'app/nginx/src/http/modules/ngx_http_index_module.c')
| -rw-r--r-- | app/nginx/src/http/modules/ngx_http_index_module.c | 540 |
1 files changed, 0 insertions, 540 deletions
diff --git a/app/nginx/src/http/modules/ngx_http_index_module.c b/app/nginx/src/http/modules/ngx_http_index_module.c deleted file mode 100644 index c144b31..0000000 --- a/app/nginx/src/http/modules/ngx_http_index_module.c +++ /dev/null @@ -1,540 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_http.h> - - -typedef struct { - ngx_str_t name; - ngx_array_t *lengths; - ngx_array_t *values; -} ngx_http_index_t; - - -typedef struct { - ngx_array_t *indices; /* array of ngx_http_index_t */ - size_t max_index_len; -} ngx_http_index_loc_conf_t; - - -#define NGX_HTTP_DEFAULT_INDEX "index.html" - - -static ngx_int_t ngx_http_index_test_dir(ngx_http_request_t *r, - ngx_http_core_loc_conf_t *clcf, u_char *path, u_char *last); -static ngx_int_t ngx_http_index_error(ngx_http_request_t *r, - ngx_http_core_loc_conf_t *clcf, u_char *file, ngx_err_t err); - -static ngx_int_t ngx_http_index_init(ngx_conf_t *cf); -static void *ngx_http_index_create_loc_conf(ngx_conf_t *cf); -static char *ngx_http_index_merge_loc_conf(ngx_conf_t *cf, - void *parent, void *child); -static char *ngx_http_index_set_index(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); - - -static ngx_command_t ngx_http_index_commands[] = { - - { ngx_string("index"), - NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, - ngx_http_index_set_index, - NGX_HTTP_LOC_CONF_OFFSET, - 0, - NULL }, - - ngx_null_command -}; - - -static ngx_http_module_t ngx_http_index_module_ctx = { - NULL, /* preconfiguration */ - ngx_http_index_init, /* postconfiguration */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - NULL, /* create server configuration */ - NULL, /* merge server configuration */ - - ngx_http_index_create_loc_conf, /* create location configuration */ - ngx_http_index_merge_loc_conf /* merge location configuration */ -}; - - -ngx_module_t ngx_http_index_module = { - NGX_MODULE_V1, - &ngx_http_index_module_ctx, /* module context */ - ngx_http_index_commands, /* module directives */ - NGX_HTTP_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -/* - * Try to open/test the first index file before the test of directory - * existence because valid requests should prevail over invalid ones. - * If open()/stat() of a file will fail then stat() of a directory - * should be faster because kernel may have already cached some data. - * Besides, Win32 may return ERROR_PATH_NOT_FOUND (NGX_ENOTDIR) at once. - * Unix has ENOTDIR error; however, it's less helpful than Win32's one: - * it only indicates that path points to a regular file, not a directory. - */ - -static ngx_int_t -ngx_http_index_handler(ngx_http_request_t *r) -{ - u_char *p, *name; - size_t len, root, reserve, allocated; - ngx_int_t rc; - ngx_str_t path, uri; - ngx_uint_t i, dir_tested; - ngx_http_index_t *index; - ngx_open_file_info_t of; - ngx_http_script_code_pt code; - ngx_http_script_engine_t e; - ngx_http_core_loc_conf_t *clcf; - ngx_http_index_loc_conf_t *ilcf; - ngx_http_script_len_code_pt lcode; - - if (r->uri.data[r->uri.len - 1] != '/') { - return NGX_DECLINED; - } - - if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD|NGX_HTTP_POST))) { - return NGX_DECLINED; - } - - ilcf = ngx_http_get_module_loc_conf(r, ngx_http_index_module); - clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); - - allocated = 0; - root = 0; - dir_tested = 0; - name = NULL; - /* suppress MSVC warning */ - path.data = NULL; - - index = ilcf->indices->elts; - for (i = 0; i < ilcf->indices->nelts; i++) { - - if (index[i].lengths == NULL) { - - if (index[i].name.data[0] == '/') { - return ngx_http_internal_redirect(r, &index[i].name, &r->args); - } - - reserve = ilcf->max_index_len; - len = index[i].name.len; - - } else { - ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); - - e.ip = index[i].lengths->elts; - e.request = r; - e.flushed = 1; - - /* 1 is for terminating '\0' as in static names */ - len = 1; - - while (*(uintptr_t *) e.ip) { - lcode = *(ngx_http_script_len_code_pt *) e.ip; - len += lcode(&e); - } - - /* 16 bytes are preallocation */ - - reserve = len + 16; - } - - if (reserve > allocated) { - - name = ngx_http_map_uri_to_path(r, &path, &root, reserve); - if (name == NULL) { - return NGX_ERROR; - } - - allocated = path.data + path.len - name; - } - - if (index[i].values == NULL) { - - /* index[i].name.len includes the terminating '\0' */ - - ngx_memcpy(name, index[i].name.data, index[i].name.len); - - path.len = (name + index[i].name.len - 1) - path.data; - - } else { - e.ip = index[i].values->elts; - e.pos = name; - - while (*(uintptr_t *) e.ip) { - code = *(ngx_http_script_code_pt *) e.ip; - code((ngx_http_script_engine_t *) &e); - } - - if (*name == '/') { - uri.len = len - 1; - uri.data = name; - return ngx_http_internal_redirect(r, &uri, &r->args); - } - - path.len = e.pos - path.data; - - *e.pos = '\0'; - } - - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, - "open index \"%V\"", &path); - - ngx_memzero(&of, sizeof(ngx_open_file_info_t)); - - of.read_ahead = clcf->read_ahead; - of.directio = clcf->directio; - of.valid = clcf->open_file_cache_valid; - of.min_uses = clcf->open_file_cache_min_uses; - of.test_only = 1; - of.errors = clcf->open_file_cache_errors; - of.events = clcf->open_file_cache_events; - - if (ngx_http_set_disable_symlinks(r, clcf, &path, &of) != NGX_OK) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) - != NGX_OK) - { - if (of.err == 0) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, of.err, - "%s \"%s\" failed", of.failed, path.data); - -#if (NGX_HAVE_OPENAT) - if (of.err == NGX_EMLINK - || of.err == NGX_ELOOP) - { - return NGX_HTTP_FORBIDDEN; - } -#endif - - if (of.err == NGX_ENOTDIR - || of.err == NGX_ENAMETOOLONG - || of.err == NGX_EACCES) - { - return ngx_http_index_error(r, clcf, path.data, of.err); - } - - if (!dir_tested) { - rc = ngx_http_index_test_dir(r, clcf, path.data, name - 1); - - if (rc != NGX_OK) { - return rc; - } - - dir_tested = 1; - } - - if (of.err == NGX_ENOENT) { - continue; - } - - ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err, - "%s \"%s\" failed", of.failed, path.data); - - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - uri.len = r->uri.len + len - 1; - - if (!clcf->alias) { - uri.data = path.data + root; - - } else { - uri.data = ngx_pnalloc(r->pool, uri.len); - if (uri.data == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - p = ngx_copy(uri.data, r->uri.data, r->uri.len); - ngx_memcpy(p, name, len - 1); - } - - return ngx_http_internal_redirect(r, &uri, &r->args); - } - - return NGX_DECLINED; -} - - -static ngx_int_t -ngx_http_index_test_dir(ngx_http_request_t *r, ngx_http_core_loc_conf_t *clcf, - u_char *path, u_char *last) -{ - u_char c; - ngx_str_t dir; - ngx_open_file_info_t of; - - c = *last; - if (c != '/' || path == last) { - /* "alias" without trailing slash */ - c = *(++last); - } - *last = '\0'; - - dir.len = last - path; - dir.data = path; - - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, - "http index check dir: \"%V\"", &dir); - - ngx_memzero(&of, sizeof(ngx_open_file_info_t)); - - of.test_dir = 1; - of.test_only = 1; - of.valid = clcf->open_file_cache_valid; - of.errors = clcf->open_file_cache_errors; - - if (ngx_http_set_disable_symlinks(r, clcf, &dir, &of) != NGX_OK) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - if (ngx_open_cached_file(clcf->open_file_cache, &dir, &of, r->pool) - != NGX_OK) - { - if (of.err) { - -#if (NGX_HAVE_OPENAT) - if (of.err == NGX_EMLINK - || of.err == NGX_ELOOP) - { - return NGX_HTTP_FORBIDDEN; - } -#endif - - if (of.err == NGX_ENOENT) { - *last = c; - return ngx_http_index_error(r, clcf, dir.data, NGX_ENOENT); - } - - if (of.err == NGX_EACCES) { - - *last = c; - - /* - * ngx_http_index_test_dir() is called after the first index - * file testing has returned an error distinct from NGX_EACCES. - * This means that directory searching is allowed. - */ - - return NGX_OK; - } - - ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err, - "%s \"%s\" failed", of.failed, dir.data); - } - - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - *last = c; - - if (of.is_dir) { - return NGX_OK; - } - - ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, - "\"%s\" is not a directory", dir.data); - - return NGX_HTTP_INTERNAL_SERVER_ERROR; -} - - -static ngx_int_t -ngx_http_index_error(ngx_http_request_t *r, ngx_http_core_loc_conf_t *clcf, - u_char *file, ngx_err_t err) -{ - if (err == NGX_EACCES) { - ngx_log_error(NGX_LOG_ERR, r->connection->log, err, - "\"%s\" is forbidden", file); - - return NGX_HTTP_FORBIDDEN; - } - - if (clcf->log_not_found) { - ngx_log_error(NGX_LOG_ERR, r->connection->log, err, - "\"%s\" is not found", file); - } - - return NGX_HTTP_NOT_FOUND; -} - - -static void * -ngx_http_index_create_loc_conf(ngx_conf_t *cf) -{ - ngx_http_index_loc_conf_t *conf; - - conf = ngx_palloc(cf->pool, sizeof(ngx_http_index_loc_conf_t)); - if (conf == NULL) { - return NULL; - } - - conf->indices = NULL; - conf->max_index_len = 0; - - return conf; -} - - -static char * -ngx_http_index_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_http_index_loc_conf_t *prev = parent; - ngx_http_index_loc_conf_t *conf = child; - - ngx_http_index_t *index; - - if (conf->indices == NULL) { - conf->indices = prev->indices; - conf->max_index_len = prev->max_index_len; - } - - if (conf->indices == NULL) { - conf->indices = ngx_array_create(cf->pool, 1, sizeof(ngx_http_index_t)); - if (conf->indices == NULL) { - return NGX_CONF_ERROR; - } - - index = ngx_array_push(conf->indices); - if (index == NULL) { - return NGX_CONF_ERROR; - } - - index->name.len = sizeof(NGX_HTTP_DEFAULT_INDEX); - index->name.data = (u_char *) NGX_HTTP_DEFAULT_INDEX; - index->lengths = NULL; - index->values = NULL; - - conf->max_index_len = sizeof(NGX_HTTP_DEFAULT_INDEX); - - return NGX_CONF_OK; - } - - return NGX_CONF_OK; -} - - -static ngx_int_t -ngx_http_index_init(ngx_conf_t *cf) -{ - ngx_http_handler_pt *h; - ngx_http_core_main_conf_t *cmcf; - - cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); - - h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers); - if (h == NULL) { - return NGX_ERROR; - } - - *h = ngx_http_index_handler; - - return NGX_OK; -} - - -/* TODO: warn about duplicate indices */ - -static char * -ngx_http_index_set_index(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_http_index_loc_conf_t *ilcf = conf; - - ngx_str_t *value; - ngx_uint_t i, n; - ngx_http_index_t *index; - ngx_http_script_compile_t sc; - - if (ilcf->indices == NULL) { - ilcf->indices = ngx_array_create(cf->pool, 2, sizeof(ngx_http_index_t)); - if (ilcf->indices == NULL) { - return NGX_CONF_ERROR; - } - } - - value = cf->args->elts; - - for (i = 1; i < cf->args->nelts; i++) { - - if (value[i].data[0] == '/' && i != cf->args->nelts - 1) { - ngx_conf_log_error(NGX_LOG_WARN, cf, 0, - "only the last index in \"index\" directive " - "should be absolute"); - } - - if (value[i].len == 0) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "index \"%V\" in \"index\" directive is invalid", - &value[1]); - return NGX_CONF_ERROR; - } - - index = ngx_array_push(ilcf->indices); - if (index == NULL) { - return NGX_CONF_ERROR; - } - - index->name.len = value[i].len; - index->name.data = value[i].data; - index->lengths = NULL; - index->values = NULL; - - n = ngx_http_script_variables_count(&value[i]); - - if (n == 0) { - if (ilcf->max_index_len < index->name.len) { - ilcf->max_index_len = index->name.len; - } - - if (index->name.data[0] == '/') { - continue; - } - - /* include the terminating '\0' to the length to use ngx_memcpy() */ - index->name.len++; - - continue; - } - - ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); - - sc.cf = cf; - sc.source = &value[i]; - sc.lengths = &index->lengths; - sc.values = &index->values; - sc.variables = n; - sc.complete_lengths = 1; - sc.complete_values = 1; - - if (ngx_http_script_compile(&sc) != NGX_OK) { - return NGX_CONF_ERROR; - } - } - - return NGX_CONF_OK; -} |