diff options
Diffstat (limited to 'nginx/src/http/modules/ngx_http_try_files_module.c')
-rw-r--r-- | nginx/src/http/modules/ngx_http_try_files_module.c | 404 |
1 files changed, 0 insertions, 404 deletions
diff --git a/nginx/src/http/modules/ngx_http_try_files_module.c b/nginx/src/http/modules/ngx_http_try_files_module.c deleted file mode 100644 index ce783a2..0000000 --- a/nginx/src/http/modules/ngx_http_try_files_module.c +++ /dev/null @@ -1,404 +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_array_t *lengths; - ngx_array_t *values; - ngx_str_t name; - - unsigned code:10; - unsigned test_dir:1; -} ngx_http_try_file_t; - - -typedef struct { - ngx_http_try_file_t *try_files; -} ngx_http_try_files_loc_conf_t; - - -static ngx_int_t ngx_http_try_files_handler(ngx_http_request_t *r); -static char *ngx_http_try_files(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); -static void *ngx_http_try_files_create_loc_conf(ngx_conf_t *cf); -static ngx_int_t ngx_http_try_files_init(ngx_conf_t *cf); - - -static ngx_command_t ngx_http_try_files_commands[] = { - - { ngx_string("try_files"), - NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE, - ngx_http_try_files, - NGX_HTTP_LOC_CONF_OFFSET, - 0, - NULL }, - - ngx_null_command -}; - - -static ngx_http_module_t ngx_http_try_files_module_ctx = { - NULL, /* preconfiguration */ - ngx_http_try_files_init, /* postconfiguration */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - NULL, /* create server configuration */ - NULL, /* merge server configuration */ - - ngx_http_try_files_create_loc_conf, /* create location configuration */ - NULL /* merge location configuration */ -}; - - -ngx_module_t ngx_http_try_files_module = { - NGX_MODULE_V1, - &ngx_http_try_files_module_ctx, /* module context */ - ngx_http_try_files_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 -}; - - -static ngx_int_t -ngx_http_try_files_handler(ngx_http_request_t *r) -{ - size_t len, root, alias, reserve, allocated; - u_char *p, *name; - ngx_str_t path, args; - ngx_uint_t test_dir; - ngx_http_try_file_t *tf; - 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_script_len_code_pt lcode; - ngx_http_try_files_loc_conf_t *tlcf; - - tlcf = ngx_http_get_module_loc_conf(r, ngx_http_try_files_module); - - if (tlcf->try_files == NULL) { - return NGX_DECLINED; - } - - ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, - "try files handler"); - - allocated = 0; - root = 0; - name = NULL; - /* suppress MSVC warning */ - path.data = NULL; - - tf = tlcf->try_files; - - clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); - - alias = clcf->alias; - - for ( ;; ) { - - if (tf->lengths) { - ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); - - e.ip = tf->lengths->elts; - e.request = r; - - /* 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); - } - - } else { - len = tf->name.len; - } - - if (!alias) { - reserve = len > r->uri.len ? len - r->uri.len : 0; - - } else if (alias == NGX_MAX_SIZE_T_VALUE) { - reserve = len; - - } else { - reserve = len > r->uri.len - alias ? len - (r->uri.len - alias) : 0; - } - - if (reserve > allocated || !allocated) { - - /* 16 bytes are preallocation */ - allocated = reserve + 16; - - if (ngx_http_map_uri_to_path(r, &path, &root, allocated) == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - name = path.data + root; - } - - if (tf->values == NULL) { - - /* tf->name.len includes the terminating '\0' */ - - ngx_memcpy(name, tf->name.data, tf->name.len); - - path.len = (name + tf->name.len - 1) - path.data; - - } else { - e.ip = tf->values->elts; - e.pos = name; - e.flushed = 1; - - while (*(uintptr_t *) e.ip) { - code = *(ngx_http_script_code_pt *) e.ip; - code((ngx_http_script_engine_t *) &e); - } - - path.len = e.pos - path.data; - - *e.pos = '\0'; - - if (alias && alias != NGX_MAX_SIZE_T_VALUE - && ngx_strncmp(name, r->uri.data, alias) == 0) - { - ngx_memmove(name, name + alias, len - alias); - path.len -= alias; - } - } - - test_dir = tf->test_dir; - - tf++; - - ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, - "trying to use %s: \"%s\" \"%s\"", - test_dir ? "dir" : "file", name, path.data); - - if (tf->lengths == NULL && tf->name.len == 0) { - - if (tf->code) { - return tf->code; - } - - path.len -= root; - path.data += root; - - if (path.data[0] == '@') { - (void) ngx_http_named_location(r, &path); - - } else { - ngx_http_split_args(r, &path, &args); - - (void) ngx_http_internal_redirect(r, &path, &args); - } - - ngx_http_finalize_request(r, NGX_DONE); - return NGX_DONE; - } - - 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; - } - - if (of.err != NGX_ENOENT - && of.err != NGX_ENOTDIR - && of.err != NGX_ENAMETOOLONG) - { - ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err, - "%s \"%s\" failed", of.failed, path.data); - } - - continue; - } - - if (of.is_dir != test_dir) { - continue; - } - - path.len -= root; - path.data += root; - - if (!alias) { - r->uri = path; - - } else if (alias == NGX_MAX_SIZE_T_VALUE) { - if (!test_dir) { - r->uri = path; - r->add_uri_to_alias = 1; - } - - } else { - name = r->uri.data; - - r->uri.len = alias + path.len; - r->uri.data = ngx_pnalloc(r->pool, r->uri.len); - if (r->uri.data == NULL) { - r->uri.len = 0; - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - p = ngx_copy(r->uri.data, name, alias); - ngx_memcpy(p, path.data, path.len); - } - - ngx_http_set_exten(r); - - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, - "try file uri: \"%V\"", &r->uri); - - return NGX_DECLINED; - } - - /* not reached */ -} - - -static char * -ngx_http_try_files(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_http_try_files_loc_conf_t *tlcf = conf; - - ngx_str_t *value; - ngx_int_t code; - ngx_uint_t i, n; - ngx_http_try_file_t *tf; - ngx_http_script_compile_t sc; - - if (tlcf->try_files) { - return "is duplicate"; - } - - tf = ngx_pcalloc(cf->pool, cf->args->nelts * sizeof(ngx_http_try_file_t)); - if (tf == NULL) { - return NGX_CONF_ERROR; - } - - tlcf->try_files = tf; - - value = cf->args->elts; - - for (i = 0; i < cf->args->nelts - 1; i++) { - - tf[i].name = value[i + 1]; - - if (tf[i].name.len > 0 - && tf[i].name.data[tf[i].name.len - 1] == '/' - && i + 2 < cf->args->nelts) - { - tf[i].test_dir = 1; - tf[i].name.len--; - tf[i].name.data[tf[i].name.len] = '\0'; - } - - n = ngx_http_script_variables_count(&tf[i].name); - - if (n) { - ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); - - sc.cf = cf; - sc.source = &tf[i].name; - sc.lengths = &tf[i].lengths; - sc.values = &tf[i].values; - sc.variables = n; - sc.complete_lengths = 1; - sc.complete_values = 1; - - if (ngx_http_script_compile(&sc) != NGX_OK) { - return NGX_CONF_ERROR; - } - - } else { - /* add trailing '\0' to length */ - tf[i].name.len++; - } - } - - if (tf[i - 1].name.data[0] == '=') { - - code = ngx_atoi(tf[i - 1].name.data + 1, tf[i - 1].name.len - 2); - - if (code == NGX_ERROR || code > 999) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid code \"%*s\"", - tf[i - 1].name.len - 1, tf[i - 1].name.data); - return NGX_CONF_ERROR; - } - - tf[i].code = code; - } - - return NGX_CONF_OK; -} - - -static void * -ngx_http_try_files_create_loc_conf(ngx_conf_t *cf) -{ - ngx_http_try_files_loc_conf_t *tlcf; - - tlcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_try_files_loc_conf_t)); - if (tlcf == NULL) { - return NULL; - } - - /* - * set by ngx_pcalloc(): - * - * tlcf->try_files = NULL; - */ - - return tlcf; -} - - -static ngx_int_t -ngx_http_try_files_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_PRECONTENT_PHASE].handlers); - if (h == NULL) { - return NGX_ERROR; - } - - *h = ngx_http_try_files_handler; - - return NGX_OK; -} |