Mercurial > hg > nginx
changeset 2655:87e1fcd9b604 stable-0.6
r2202, r2408, r2425, r2454, r2459, r2482, r2504, r2542, r2565, r2579,
r2580, r2585, r2586, r2587, r2591, r2626 merge:
try_files
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Thu, 02 Apr 2009 06:44:45 +0000 |
| parents | 96b878c984f4 |
| children | 099c5b328fe2 |
| files | src/core/ngx_string.h src/http/ngx_http.c src/http/ngx_http.h src/http/ngx_http_core_module.c src/http/ngx_http_core_module.h src/http/ngx_http_parse.c |
| diffstat | 6 files changed, 333 insertions(+), 2 deletions(-) [+] |
line wrap: on
line diff
--- a/src/core/ngx_string.h +++ b/src/core/ngx_string.h @@ -52,8 +52,24 @@ typedef struct { #define ngx_strstr(s1, s2) strstr((const char *) s1, (const char *) s2) +#define ngx_strlen(s) strlen((const char *) s) + #define ngx_strchr(s1, c) strchr((const char *) s1, (int) c) -#define ngx_strlen(s) strlen((const char *) s) + +static ngx_inline u_char * +ngx_strlchr(u_char *p, u_char *last, u_char c) +{ + while (p < last) { + + if (*p == c) { + return p; + } + + p++; + } + + return NULL; +} /*
--- a/src/http/ngx_http.c +++ b/src/http/ngx_http.c @@ -406,7 +406,7 @@ ngx_http_block(ngx_conf_t *cf, ngx_comma use_rewrite = cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers.nelts ? 1 : 0; use_access = cmcf->phases[NGX_HTTP_ACCESS_PHASE].handlers.nelts ? 1 : 0; - n = use_rewrite + use_access + 1; /* find config phase */ + n = use_rewrite + use_access + cmcf->try_files + 1 /* find config phase */; for (i = 0; i < NGX_HTTP_LOG_PHASE; i++) { n += cmcf->phases[i].handlers.nelts; @@ -475,6 +475,15 @@ ngx_http_block(ngx_conf_t *cf, ngx_comma continue; + case NGX_HTTP_TRY_FILES_PHASE: + if (cmcf->try_files) { + ph->checker = ngx_http_core_try_files_phase; + n++; + ph++; + } + + continue; + case NGX_HTTP_CONTENT_PHASE: checker = ngx_http_core_content_phase; break;
--- a/src/http/ngx_http.h +++ b/src/http/ngx_http.h @@ -71,6 +71,8 @@ ngx_int_t ngx_http_parse_unsafe_uri(ngx_ ngx_int_t ngx_http_parse_header_line(ngx_http_request_t *r, ngx_buf_t *b); ngx_int_t ngx_http_parse_multi_header_lines(ngx_array_t *headers, ngx_str_t *name, ngx_str_t *value); +void ngx_http_split_args(ngx_http_request_t *r, ngx_str_t *uri, + ngx_str_t *args); ngx_int_t ngx_http_find_server_conf(ngx_http_request_t *r); void ngx_http_update_location_config(ngx_http_request_t *r);
--- a/src/http/ngx_http_core_module.c +++ b/src/http/ngx_http_core_module.c @@ -62,6 +62,8 @@ static char *ngx_http_core_limit_except( void *conf); static char *ngx_http_core_error_page(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); +static char *ngx_http_core_try_files(ngx_conf_t *cf, ngx_command_t *cmd, + void *conf); static char *ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, @@ -530,6 +532,13 @@ static ngx_command_t ngx_http_core_comm 0, NULL }, + { ngx_string("try_files"), + NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE, + ngx_http_core_try_files, + NGX_HTTP_LOC_CONF_OFFSET, + 0, + NULL }, + { ngx_string("post_action"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |NGX_CONF_TAKE1, @@ -1012,6 +1021,185 @@ ngx_http_core_post_access_phase(ngx_http ngx_int_t +ngx_http_core_try_files_phase(ngx_http_request_t *r, + ngx_http_phase_handler_t *ph) +{ + 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_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "try files phase: %ui", r->phase_handler); + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (clcf->try_files == NULL) { + r->phase_handler++; + return NGX_AGAIN; + } + + allocated = 0; + root = 0; + name = NULL; + /* suppress MSVC warning */ + path.data = NULL; + + tf = clcf->try_files; + + alias = clcf->alias ? clcf->name.len : 0; + + 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; + } + + /* 16 bytes are preallocation */ + reserve = ngx_abs((ssize_t) (len - r->uri.len)) + alias + 16; + + if (reserve > allocated) { + + /* we just need to allocate path and to copy a root */ + + if (ngx_http_map_uri_to_path(r, &path, &root, reserve) == NULL) { + ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + return NGX_OK; + } + + name = path.data + root; + allocated = path.len - root - (r->uri.len - alias); + } + + 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 && ngx_strncmp(name, clcf->name.data, alias) == 0) { + ngx_memcpy(name, name + alias, len - alias); + path.len -= alias; + } + } + + test_dir = tf->test_dir; + + tf++; + + ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "try to use file: \"%s\" \"%s\"", name, path.data); + + if (tf->lengths == NULL && tf->name.len == 0) { + + 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); + } + + return NGX_OK; + } + + ngx_memzero(&of, sizeof(ngx_open_file_info_t)); + + of.valid = clcf->open_file_cache_valid; + of.min_uses = clcf->open_file_cache_min_uses; + of.errors = clcf->open_file_cache_errors; + of.events = clcf->open_file_cache_events; + + if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) + != NGX_OK) + { + if (of.err != NGX_ENOENT && of.err != NGX_ENOTDIR) { + ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err, + ngx_open_file_n " \"%s\" failed", path.data); + } + + continue; + } + + if (of.is_dir && !test_dir) { + continue; + } + + path.len -= root; + path.data += root; + + if (!alias) { + r->uri = path; + + } else { + r->uri.len = alias + path.len; + r->uri.data = ngx_palloc(r->pool, r->uri.len); + if (r->uri.data == NULL) { + ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + return NGX_OK; + } + + p = ngx_copy(r->uri.data, clcf->name.data, alias); + ngx_memcpy(p, name, path.len); + } + + if (ngx_http_set_exten(r) != NGX_OK) { + ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + return NGX_OK; + } + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "try file uri: \"%V\"", &r->uri); + + r->phase_handler++; + return NGX_AGAIN; + } + + /* not reached */ +} + + +ngx_int_t ngx_http_core_content_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { @@ -2687,6 +2875,7 @@ ngx_http_core_create_loc_conf(ngx_conf_t * lcf->default_type = { 0, NULL }; * lcf->err_log = NULL; * lcf->error_pages = NULL; + * lcf->try_files = NULL; * lcf->client_body_path = NULL; * lcf->regex = NULL; * lcf->exact_match = 0; @@ -3606,6 +3795,71 @@ ngx_http_core_error_page(ngx_conf_t *cf, static char * +ngx_http_core_try_files(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_http_core_loc_conf_t *clcf = conf; + + ngx_str_t *value; + ngx_uint_t i, n; + ngx_http_try_file_t *tf; + ngx_http_script_compile_t sc; + ngx_http_core_main_conf_t *cmcf; + + if (clcf->try_files) { + return "is duplicate"; + } + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + + cmcf->try_files = 1; + + tf = ngx_pcalloc(cf->pool, cf->args->nelts * sizeof(ngx_http_try_file_t)); + if (tf == NULL) { + return NGX_CONF_ERROR; + } + + clcf->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.data[tf[i].name.len - 1] == '/') { + 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++; + } + } + + return NGX_CONF_OK; +} + + +static char * ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *lcf = conf;
--- a/src/http/ngx_http_core_module.h +++ b/src/http/ngx_http_core_module.h @@ -79,6 +79,7 @@ typedef enum { NGX_HTTP_ACCESS_PHASE, NGX_HTTP_POST_ACCESS_PHASE, + NGX_HTTP_TRY_FILES_PHASE, NGX_HTTP_CONTENT_PHASE, NGX_HTTP_LOG_PHASE @@ -127,6 +128,8 @@ typedef struct { ngx_hash_keys_arrays_t *variables_keys; + ngx_uint_t try_files; /* unsigned try_files:1 */ + ngx_http_phase_t phases[NGX_HTTP_LOG_PHASE + 1]; } ngx_http_core_main_conf_t; @@ -236,6 +239,14 @@ typedef struct { } ngx_http_err_page_t; +typedef struct { + ngx_array_t *lengths; + ngx_array_t *values; + ngx_str_t name; + ngx_uint_t test_dir; /* unsigned test_dir:1; */ +} ngx_http_try_file_t; + + typedef struct ngx_http_core_loc_conf_s ngx_http_core_loc_conf_t; struct ngx_http_core_loc_conf_s { @@ -325,6 +336,7 @@ struct ngx_http_core_loc_conf_s { #endif ngx_array_t *error_pages; /* error_page */ + ngx_http_try_file_t *try_files; /* try_files */ ngx_path_t *client_body_temp_path; /* client_body_temp_path */ @@ -356,6 +368,8 @@ ngx_int_t ngx_http_core_access_phase(ngx ngx_http_phase_handler_t *ph); ngx_int_t ngx_http_core_post_access_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph); +ngx_int_t ngx_http_core_try_files_phase(ngx_http_request_t *r, + ngx_http_phase_handler_t *ph); ngx_int_t ngx_http_core_content_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph);
--- a/src/http/ngx_http_parse.c +++ b/src/http/ngx_http_parse.c @@ -1467,3 +1467,39 @@ ngx_http_parse_multi_header_lines(ngx_ar return NGX_DECLINED; } + + +void +ngx_http_split_args(ngx_http_request_t *r, ngx_str_t *uri, ngx_str_t *args) +{ + u_char ch, *p, *last; + + p = uri->data; + + last = p + uri->len; + + args->len = 0; + + while (p < last) { + + ch = *p++; + + if (ch == '?') { + args->len = last - p; + args->data = p; + + uri->len = p - 1 - uri->data; + + if (ngx_strlchr(p, last, '\0') != NULL) { + r->zero_in_uri = 1; + } + + return; + } + + if (ch == '\0') { + r->zero_in_uri = 1; + continue; + } + } +}